US 1975121 A
Description (OCR text may contain errors)
Oct. 2, 1934. A. POTDEVIN TUBE MAKING MACHINE Filed Nov. 2, 1931 6 Sheets-Sheet l A. POTDEVIN 1,975,121
TUBE MAKING MACHINE Oct, 2, 1934.
Filed Nov. 2, 1931 6 Sheets-Sheet -2 A TTORNEYS.
Oct. 2, 1934. PQTDEVlN TUBE MAKING MACHINE Filed Nov. 2, 1931 6 Sheets-Sheet 3 v) INVENTOR. W Wm Y W Mv;
34- A. POTDEVIN 1,975,121
TUBE MAKING MACHINE Filed Nbv. 2. 1931 'GSheQtsr-Sheet 4 IN V EN TOR.
Oct. 2, 193
6 heets-s 5 wwF Ri m N ME u,
POTDEVIN Filed 1931 [N V EN TOR.
TTORNEY 0Ct. 2, 1934. POTDEVlN 4 1,975,121
TUBE MAKING MACHINE Filed Nov. 2. 1931" 6 Sheets-Sheet 6 IN VEN TOR. W W G Y Q 3 454 44 V ATTORNEYS.
Patented on. 2, 1934'- raraur ori ice lTED STATES to Potdevin Machine Company,
N. Y., a corporation of New York, Application November 2, 1931, Serial No. 572,5$l
19 Claims. (Cl. 93=2) This invention relates to an improvement in bag-making machines, and has for one of its objects the provision of a, machine of such construction that the same is more flexible than such machines as heretofore built, that is to say,
is capable of adjustment to suit varying conditions to a much greater degree than prior machines.
A further object of the invention is the provision of a construction in which the tucking mechanism by which the edges of the bag tube are tucked in is positively driven and may be adjusted so as to vary the depth of the tuck to accommodate tubes of difierent widths without disturbing the positive drive therefor.
I have provided also in the present machine means whereby the tucking mechanism may be readily moved into and out of operative position by simply swinging an operating lever, this mechthe tucking mechanism will be returned to its original position when the lever is moved back to its original position.
A further object of my invention is the provision of guiding mechanism for the paper webs (this machine being particularly adapted for making multi-wall bags), which guiding mechanism is adjustable so as to lead the paper webs to the tubing mechanism at the proper angle.
A further object of my invention is the provi sion of a plate adapted to overlie the tube just as the paper leaves the tube-forming and tucking mechanism, this plate being mounted in a novel manner whereby the same is held properly in position and may be quickly and readily removed when the machine is being originally set up for operation.
A further object of my invention is the provision of a novel mount for the feed rollers.
40 A still further object of my invention is the provision of improved cutting rollers by which the tube is severed, this construction, as will be hereinafter pointed out, being of such a character as to permit the rollers to be adjusted to adapt the machine for making bags of diiferent lengths. I have also provided for adjusting the cutting ofi mechanism transversely of the machine. this construction being such that the two tooperating rollers carrying the cutting off mechanism will be adjusted simultaneously, thereby eliminating the possibility of one being adjusted out of register with the other.
Further objects of my invention will appear hereinafter.
anism being of such a character as to insure that- In the drawings accompanying this application:
Fig. 1 is a side elevational view more or less diagrammatic of the entire machine;
Fig. 1 is a view of part of the driving mecha- $0 nism; I
Fig. 2 is a plan view of tube forming and tucking mechanism;
Fig. 3 is a view of this same mechanism showing the paper passing through the machine;
Fig. 4 is a view of the driving mechanism for the tucking rollers;
Fig. 5 is a further view of the tucking mechanism;
Fig. 6 is a view illustrating the means whereto by the tucking mechanism can be moved into and I out of operative position without disturbing the drive therefor;
Fig. 7 is an elevational view partly in section showing in somedetail the method of mountin 75 the plate which overlies the web just prior to the web entering the feeding rollers and also showing the new construction of the feeding rollers;
Fig. 8 shows in section the construction of a pair of rollers which are located between the cutgo ting off rollers and the feed rollers;
Fig. 9 is an elevational view of the cutting ofi rollers partly broken away;
Fig. 10 is a view of the lower of the two rollers shown in Fig. 9, showing the method of mounting;
Fig. 11 is a sectional view of the cutting ofi mechanism;
Fig. 12 is a fragmentary view of certain mechanism employed in connection with the cutting ofi rollers;
Fig. 13 is an elevational view of the paste applying mechanism; and
Fig. 14 shows the web after being cut ofi.
Referring to the drawings in detail and first of all to Fig. 1, the machine of this application as 95 above stated is adapted for the manufacture of multi-walled bags and essentially comprises adhesive applying mechanism 1,' guiding mechanism shown at 2 for the paper webs, tube-forming mechanism designated 3 in Fig. 3, tucking mech- 10o anism designated 4 in the same figure, feeding rollers 5 by which the paper is advanced through the machine, cutting oif mechanism 6 and discharge mechanism 7, a finished tube as it appears after the same has been cut 01? being shown at 105 8 in Fig. 14.
The gluing or pasting mechanism designated 1 comprises a tank 9 carrying brackets 10 in which is mounted a sleeve 11. Passing through this sleeve is a shaft 12 supported in suitable bearings no at each side of the machine frame, this shaft being driven by a chain 13 for instance.
The sleeve 11 is provided with a bolt 14 adapted to be received by a keyway 15 in the shaft 12 to establish a driving connection between the shaft and sleeve, this construction also permitting of adjustment of the sleeve longitudinally of the shaft.
Carried on the sleeve 11 intermediate the bearings 10 are a series of adhesive applying discs 16. I have shown five of these discs in the drawings only for the reason that I have illustrated the machine as handling five plies or webs of paper. It is to be understood, of course, that the number of discs may be varied as desired. Each disc is provided with a hub 17 and each hub in turn with a bolt 18 whereby the disc is held against turning on the sleeve. By loosening the bolt 14 the sleeve 11 and the'discs 16 may be adjusted as a unit longitudinally of the shaft 12, while by loosening the bolts 18 the discs 16 may be adjusted individually on the sleeve 11. Each disc is also equipped with a scraper 16' which is adjustable and by which the adhesive on the discs may be controlled.
The tank 9 is mounted on rails 19 extending transversely of the machine and is adjustable longitudinally of these rails. Thumb screws 20 hold the tank in adjusted position. In this way the tank 9 and discs 16 may be adjusted transversely of the machine as a unit if desired merely by loosening the set screws 14 and the thumb screws 20 thereby permitting the tube 11 to slide along the shaft 12 and the tank 9 along the rails 19.
The several webs of paper designated 21 enter the machine from a suitable source of supply, passing about spaced guide rollers 22, a guide roller being provided for each web of paper, the webs in spaced relation passing upwardly and about a roller 23 located below the paste applying discs 16, that is to say, in such a position that the webs pass over this roller before they reach the discs. Above the disc or beyond the disc is a roller 24. This roller is adjustable by means of adjusting mechanism 25 and by adjusting this roller 24 the pressure of the paper webs against the discs 16 may be varied. It will be appreciated therefore that the webs are brought into the machine in spaced relation, and they are then brought together at roller 23, remaining in this condition as they contact discs 16 which are traveling oppositely to "the webs until they leave roller 24, to have the paste or other suitable adhesive applied to the edge of each web as shown at 26. This arrangement eliminates the necessity of mounting a roller behind the paper webs abreast of the discs 16, as is done usually, to maintain the webs in the desired contact with the edges of the discs, the rollers 23 and 24 being so located as to bring the webs into contact with the discs with the desired pressure, the construction permitting the paper to yield sufiiciently so as automatically to take care of the varying thicknesses of the paper due to using more than one web with the webs in over- I lapped relation.
After having received their coating of paste the webs pass upwardly about spaced adjustable rollers 27, a roller being provided for each web.
The spaced webs are then brought together at single roller 28 and from thence pass downwardly to the forming mechanism. The spaced rollers 27 are mounted in brackets 29, one of these brackets being provided at each side of the machine. Each roller is capable of independent vertical adjustment in the bracket 29 by merely adjusting the screws'30. The roller 28 is also adjustable by similar screws 30. In this way the setting of the rollers 27 and 28 can be varied as desired, and the webs 21, which are spaced when they pass over the rollers 27, brought together at the roller 28. I
The machine frame at each side is provided with an adjustable bracket 31 mounted in guides 32 and adjustable by means of a vertically extending shaft 33 threaded into each bracket 31, the upper end of each of these shafts being provided with a gear 34 meshing with a gear 35, these last two gears being mounted on each end .of a shaft 36 extending across the machine so mechanism indicated at 38 and 39 operation of a hand wheel 40 will effect movement of the brackets 29 simultaneously longitudinally of the machine.
This arrangement, it will be seen, taken in connection with the individual adjustment of the rollers 27 and 28 provides for any adjustment of these rollers that may be desired so that the paper webs can be adjusted relatively to each other with great nicety and led to the forming mechanism at any desired angle. As above mentioned I prefer to guide the webs'so that they are brought into contact with each other at the roller 28.
From the description thus far given it will be seen that I have provided for adjustment of the paste or adhesive applying discs, the container for the adhesive and for adjustment of the paper webs to practically'any extent desired.
The webs 21 as 'they approach the forming mechanism in their travel through the machine pass through and in contact with the folding arms 41 which causes the webs to be folded over as shown in Fig. 3, the pasted edges of the webs overlapping the unp'asted edges, to form a tube as will be appreciated. This tube is then passed over the tucking mechanism. This tucking mechanism is of improved construction and is best seen in Figs. 2 and 3.
Referring to these figures of the drawings, it will be seen that a plate 42, supported at its front end, extends lengthwise of the machine, the paper being wrapped about this plate just beyond its mount. At each side of this plate are sets of tucker plates 43 and 44. These tucker plates are secured by cross members 45 and 46 to the plate 42 by slot and bolt connections 47 and 48 to permit of lateral adjustment of the plates 43 and 44 for accommodating tubes of varying widths. This construction also permits of the rear end, that is, the end to the right as viewed in Fig. 2, to be adjusted laterally so that the plates may be spaced slightly wider apart at the rear end of the machine than at the forward end. 7
As'will be seen the plates 43 are so mounted as to provide a space between them, the plates 44 being similarly mounted. These spaces or grooves are designated 49 and 50, respectively. It is into these grooves that the tube is pressed in the process of tucking, and as'will appear from Fig. 4, for instance, these grooves gradually diminish in width or depth traveling rearwardly or to the right, as viewed in Fig. 4.
At the outer side of the plates 43 and extending aavaiai 3 longitudinally thereof is a plate 51 in which are mounted a plurality of vertically extending shafts 52, the upper end of each of these shafts carrying a tucker roller 53, rotatable in a hori-= zontal plane. The rollers cooperate with the groove 49 as will appear hereinafter, and hence gradually diminish in thickness from front to rear of the mechanism, as seen in Fig. 4. They are adjustably mounted on their respective shafts. Each of the shafts 52 is provided below the plate 51 with a gear 54 and between adjacent gears an intermediate gear 55 is provided so that in operation all of the rollers 53 will be driven .in the same direction. The end shaft 52 that is the shaft at the left hand end of the machine, as viewed in Fig. 2, is provided at its lower end with a bevel gear 56 meshing with a bevelgear 57 carried'on a shaft 58 extending transversely of the machine.
The shaft 58 is provided at one end with av bevel gear 59 meshing with a gear 60 on a shaft 61, the other end of the latter having a gear 62 which meshes with a gear 63 (a part of the driving mechanism of the machine as will be brought out hereinafter).
The gear 57 is carried by a bracket 64 on the shaft 52. The shaft 58 is provided with a keyway 65 extending longitudinally of the shaft so that when the shaft 52 is moved laterally as will be described hereinafter the gear 57 will move along the shaft 58 without disturbing the meshing of the two gears 56 and 57, thereby permitting of lateral movement of the tucking rollers, etc. without disturbing the drive for these rollers.
Mounted on the upper side of the plate 51 are a plurality of brackets 66 to which are rigidly secured a pair of plates or rails 67, these plates being spaced slightly from each other to accommodate bolts 68 by which a plurality of arms 69 are adjustably secured to the rails. Each of these arms is provided with a slot 70 for receiving the bolt. On the inner end of each of the arms 69, i. e., the end approaching the plate 43 abracket 71 is pivotally mounted, each of these brackets carrying a roller 72 which rests upon the paper web as the same is passing through the tucking mechanism.
Springs 73 are attached to the bracket 71 and the arms 69, respectively, so that when the rollers 72 are raised out of operative position they will be retained in this position. Likewise when the rollers are in operative position these springs will hold the rollers down in contact with the paper, the springs with the rollers in operative position lying below the pivot of the bracket 71 for each roller.
The plate 51 also carries two brackets 74 each of these brackets in turn carrying a rotatable bearing 75, one of these bearings receiving the threaded end of an adjusting rod 76 the other re-: ceiving the threaded end of an adjusting rod 77. These rods as will be seen from Fig. 2 extend transversely of the machine and are provided at their outer ends with a hand wheel 78 for rotation. 9
Intermediate the bearings and the hand wheel 78 the rod 76 is provided with a bearing 79, the rod 7'7 being provided with a similar bearing 80. The bearing 79 is secured to cranks 81 on a shaft 82 extending lengthwise of the machine, the bearing being secured to a similar crank 83 on the same shaft. The rods 76 and 77 are held against longitudinal movement in the bearings 79 and 80 although as understood the rods are rotatable. in these hearings. Consequently if the rod 82 be rotated in one direction, the plate 51 and all of the apparatus attached thereto, including the tucker rollers 53, will be moved inwardly toward the plate 43. It will be apparent also that if the shaft 82 be rotated in the opposite direction the plate 51 and all of the apparatus carried thereby will be moved outwardly.
The outer end of the shaft 82 is provided with a crank 84 and to this crank is secured a bar 85 extending transversely of the machine, the opposite end of this bar being secured to a crank 86 carried on a shaft 87 extending along the side of the machine and similar to the shaft 82. This shaft 87 is provided with cranks 88 to which is secured one of the bearings 89 for an adjusting rod 90 similar to the rod 76, this rod being provided with a hand wheel 91 at its outer end. The shaft 87 also carriesa crank 92 which is secured to hearing 93 similar to the bearing 80 for an adjusting rod 94 which is similar to the rod 77.
95 designates a plate extending lengthwise of the machine and provided on its upper surface with rotatable bearings 96 and 97 for the inner ends of the adjusting rods 90 and 94, respectively.
Plate 95 also carries a plurality of brackets 98 to which are secured two plates 99 in spaced relation for the reception of bolts 100 by which the arms 101 are attached to these plates adjustably. The inner ends of the arms 101 are provided with rollers 102 which are similar to the rollers 72 on the other side of the machine and mounted in the same fashion.
The plate 95 also mounts vertically extending shafts 103 each of which carries a tucker roller 104 similar to the tucker rollers 53. Each of these rollers is rotatable in a horizontal plane and lies above the plate 95; Each shaft 103 is provided with a gear 105 and between adjacent gears is an intermediate gear 106 so that the rollers 104 will all be driven in the same direction. The lower end of the shaft 103 at the left hand end of the machine, as viewed in Fig. 2, is provided with a bevel gear 107 meshing with a bevel gear 108 on the shaft 58 already referred to and which as was explained extends transversely of the machine. This gear 108 is carried by a bracket 109 secured to the shaft 103 and the gear likewise is movable lengthwise of the shaft 58, the shaft being provided with a keyway 110 for this purpose. As in the case of the opposite side of the machine this construction permits of the plate 95 being moved transversely of the machine in both directions without disturbing the drive between the gears 10? and 108.
The shaft 87 is provided with a lever 111 by which the shaft can be rocked and it will be appreciated that if the lever 111 be moved from the full line position of Fig. 6 to the dotted line position thereof the plate 95 and all of the mechanism attached thereto will be moved outwardly with respect to the plate 44, this movement of the lever through the cranks 86 and 84 and bar 85 imparting movement to the shaft 82 in a direction to move the plate 51 on the opposite side of the machine and all of the apparatus carried thereby outwardly. It will be appreciated also that movement of the lever in the opposite direction will restore the parts to their original position.
By adjustment of the rods 76, 77, 90 and 94 it will be appreciated that the tucking rollers 53 at one side of the machine and the tucking 'rollers 104 at the other side of the machine can be adjusted to any degree desired with respect to their respective cooperating tucker plates 43 and 44.
It will be appreciated also that the rollers 72 and 102 may be adjusted as desired due to the provision of the means by which these rollers are mounted on the rails 67 and 99, that is to say, the arms carrying these rollers may be lengthened or shortened in effect and can likewise be rotated about their points of attachment to the rails as will be appreciated.
It will be further appreciated that all of the adjustments above referred to can be made without disturbing the gear train by which the tucker rollers are positively driven. .This of course is of great advantage as will be appreciated by those skilled in this art.
It Will be appreciated also as I have already pointed out that the tucker plates 43 and 44 can be adjusted so as not to lie exactly parallel to each other, it being preferable to adjust these plates so that they are slightly closer together at their rear end (the right hand end as shown in Fig. 2) than at the forward end, such adjustment facilitating proper starting of the tucking operation by the first set of tucking rollers 53 and 104 at each side of the machine, the tucker rollers at one side of the machine, as will be appreciated, being parallel to the tucker rollers at the opposite side of the machine.
The paper web after leaving the tucker mechanism passes between two sets of feed rollers, an upper set 112 and a lower set 113. Before entering between these feed rollers, however, the paper is passed beneath a bar 114. This bar is preferably provided with a plate 115 on its underside, the front end of this plate being turned up slightly as shown in Fig. 7 to facilitate movement of the paper between the plate and the bed 117 of the machine at this point.
The bar or plate 114 is held down by springs 118 mounted on vertically extending rods 119, the upper end of each of these springs bearing against the top of brackets 120 secured to the machine frame and located adjacent each end of the bar. A cam arm 121 is attached to each of the rods 119, and viewing Fig. 7, it will be seen that by raising these rods the cam portion of the rod will bear against the top of the brackets 120 to raise the rods out of contact with the plate 114 to permit the latter to be slipped out of the machine. To prevent excess end motion of the bar 114 the bar is provided at each end with a vertically extending pin 122 adapted to engage the brackets 120. When the machine is first being set up it will be understood that the bar 114 is removed until the paper is passed into the feed rollers. This bar acts as a presser plate to hold the paper tube down as it leaves the tucking mechanism and passes into the feed rollers.
The feed rollers 112 and 113, two sets of these rollers being provided, as above pointed out, comprise the upper rollers 112 carried in bearing blocks 123 mounted in the casting 124 constituting a part of the machine frame.
The upper face or" the casting 124 is provided with a cap 125 yieldingly bolted to the casting by bolts 126 each of these bolts being provided with a spring 127 mounted in the bore 128 which receives each bolt.
Each cap 125 is provided with an adjustably 'mounted block 129, the adjustment of this block or its position in the cap being regulatable by an adjusting bolt 130, see Fig. 7.
131 designates a rod which passes across the top of each of the upper feed rolls 112, this rod rovmiei moved from the vertical position shown in Fig. 7
either to the right or left, as the case may be, and this will move the high part of the cam 132 away from the projection 133 on the blocks 123 and the springs 135 which lie beneath the blocks 123 and intermediate these blocks and the casting 124 will raise the upper feed rollers. It will be apparent, therefore, that the springs 127 will control the pressure of the rollers upon the paper. It will be appreciated also that when the cams 132 are moved to inoperative position that the springs 135 will move the upper feed roller upwardly away from the lower roller as above explained.
The web after passing between the feed rollers passes between a pair of pinch rollers 136 and 137 and from thence between cut off rollers 138 and 139, the tube after being cut off by these rollers being discharged from the machine by discharge rollers 140.
Each of the pinch rollers 136 and 137 is provided with pinch blocks 141 and 141', these blocks extending lengthwise of the rollers, the blocks 141 which are intermediate the blocks 141 being backed by springs 142. The pinch blocks are so positioned on the periphery of the rollers 136 and 137 as to lie abreast of each other with the rollers inthe position shown in Fig. 8 to pinch the web passing between them. By yieldingly mounting the blocks 141, these blocks are able to adapt themselves to the thickness of the tube in its passage through the machine, the tube being thinner intermediate its edges than at the pleated sides as will be understood.
The cut off rollers are seen in Figs. 9, 10 and 11 and are not only provided with cutters for cutting or severing the tube as it passes between them but also with expelling mechanism for discharging the waste paper that is cut from the tube to prevent the machine from becoming clogged.
The upper cut 01f roller 138 is clamped by bolts 138 to a shaft 143 to which it is keyed as shown at 144. The lower cut off roller 139 is clamped by bolts 139' to a shaft 145 to which it is keyed as shown at 146. The driving mechanism for the rollers will be described in detail hereinafter.
The upper cut ofi roller 138 is provided with a flange 147 at one end, the lower roller being provided with two flanges 148 and 149 arranged in spaced relation to each other so as to receive between them the flange 147 on the upper roller.
The shaft 143 carrying the upper roller is provided with a collar 150 rigidly secured thereto, this collar in turn being flanged as shown at 151. The flange 151 receives a threaded adjusting member 152 threaded through the flanges 153, 147 and 154 on the upper roller. By loosening the bolts 138' and 139' and adjusting the threaded member 152 endwise movement of the rollers 138 and 139 on their respective shafts 143 and 145 may be efiected. This permits of the cut off rollers being adjusted transversely of the machine to any desired position with respect to the web passing through the machine. The adjusting member 152 is held in adjusted position by a lock nut 155.
This arrangement is very simple and at the same time very useful inasmuch as it permits of adjustment of both rollers to exactly the same degree and insures that the knives to be referred to hereinafter carried by each roller will not be moved out of alignment or register with each other in the making of the adjustment.
As will be seen from Figs. 10 and 11, the lower roller 139 is provided on its periphery with a wife 156, this knife extending the length of the roller, and being clamped to the roller by a plate 157. The cutting edge of this knife cooperates with a groove 158 which is provided in the upper roller 138 by a plate 159 aflixed to the periphery of this roller and having an extension 160 terminating short of the portion 161' of the upper roller.
Set into the periphery of the roller 139 adjacent the knife 156 is a plate 162 extending parallel to the knife 156 and hence lengthwise of the roller, this plate projecting beyond the end of the roller and carrying a cam follower 163 cooperating with an adjustable fixed cam 164. This cam 164 is mounted on two adjusting screw threaded members 165 which are threaded into the frame of the machine, the outer end of each of these adjusting members 165 being shaped to receive a wrench. so that by rotating these menubers 165 the cam 164 can be moved to the left or to the right, as viewed in Fig. 9, to any position desired.
The adjusting members 165 are conveniently held in adjusted position by a lock nut 166. This arrangement provides for proper adjustment of the cam with respect tothe cam follower 163 when the cutting off rollers are adjusted, as above explained.
The cam 163 is'backed by springs 167. By reason of this construction it will be. appreciated that as the roller 139 is rotated the plate 162 which is provided with depressions 168 and high portions 169 will be intermittently reciprocated.
Immediately'above the plate 162 and disposed radially of the roller 139 are a series of pin plungers 170 and push off or ejector plungers 1'71. Immediately above these plungers, that is, on the periphery of the roller is a plate 172 provided with holes 1'73 and 174 for receiving the outer ends of the plungers 170 and 171, respectively. Each plunger is provided with a spring 175 which retains the plungers in their inner position so that they do not project beyond the periphery of the roller until the proper instant.
Secured to the periphery of the upper roller 138 is a knife 176 adapted to cooperate with a groove 17''! in the lower roller, this groove being similar to the groove 158 in the upper roller. This knife extends lengthwise of the roller to the point 178 and then peripherally of the roller asshown at 179, it being noted that this upper knife terminates short of the end of the lower knife. The purpose of this will be pointed out hereinafter. The upper roller also carries spring-pressed plungers 180 which are provided for the purpose of holding the paper web against the lower roller at the instant of the cutting off operation.
The upper roller is also provided in its peripherywith depressions 181 which register with the ejecting pins 170.
The paper tube is shown in Fig. 14 and referring to this figure for a moment it will be seen that the tube which I shall designate 182 is first severed entirely across the end. This is accomplished by the knife 156-because the rollers 138 and 139 aretraveling in the. direction of the arrows on Fig. 11 and an inspectionof this figure will show that the lower mife 156 is the first to perform its cutting off operation. This cutting off operation is followed by a cutting lengthwise of the paper or tube as indicated at 183 which is done by the portion 179 of the upper knife, it being remembered; that this part of this knife extends circumferentially of the roller, while this cut is followed by a transverse cut 184 performed by the main part of the upper knife 1'76. This operation cuts the piece 185 out of the web to provide a valve flap.
During this cutting off operation the plungers 180 engage the web to press the web against the lower roller and as the paper is cut off on the first cut the pins 176 moved outwardly by the high spots 169 on the reciprocating plate 162 puncture the portion 185. of the web and remain in this position until this portion of the web is severed from the end of the tube, as above pointed out, whereupon the ejector plungers 171 which are moved outwardly alternately with respect to the pins 176 will function to push this cut out or waste portion 185 from the pins and allow it to drop down into the bottom part of the machine. I am thus assured of the machine working properly at all times, this positive ejection of the scrap preventing any clogging of the machine from such source.
As the tube is severed and the cutting operation completed the tube is ejected from the machine by the delivery rollers 146. These rollers as willpresently be described are traveling at an overspeed so far as their speed compared with that ofthe cut off rollers is concerned so as to eject the tube with a quick action.
As will be apparent from the foregoing, the hold-back or pinch rollers 136 and 137 are intermediate the feed rollers 112 and 113 and the cut off rollers or cylinders 138 and 139. This is of advantage as will be appreciated in insuring-accuracy in the valve lengths inasmuch as regardless of the speed at which the tube may be advanced by the feed rollers the valves can only be cut into the correct valve length due to the provision of the pinch rollers intermediate the feed rollers and the cut ofi rollers, the setting of these rollers and the setting of the cutting ofi rollers determining the valve lengths and not the speed of the feed rollers.
The driving mechanism for the feed rollers, the hold-back rollers 136 and 137, the cut ofi rollers 138 and 139 and the delivery rollers 140 is best seen in Fig. 3.
I have already explained to some extent the drive for the tucking mechanism, during which explanation I referred to the bevel gear 63 which provides a drive for the shaft 61 for the tucking mechanism. 1
The prime mover may be an electric motor, for
instance, as shown-at 186. This motor drives a pulley 187 through the medium of a belt 188. The
pulley 187 is freely mounted on a shaft 189 extending transversely of the machine and projecting through the opposite side of the frame thereof where it is provided with a gear 190. Fast with.
the pulley 187 is a gear 191 and this gear meshes with idler gear 192 in turn in mesh with gear 193 mounted on the shaft of the lower hold-back roller 137, this shaft being provided with a gear 194 meshing with a gear 195 on the shaft of the upper hold-back roller 136. The cut off rollers 138 and 139 are geared together by gears 196 and 197 on one side of the machine and to the shafts of the hold-back rollers 136 and 137 by gear 197' and intermediate gear 198. The gear 197 on the shaft of the lower cut off roller is geared to one 5g.
of the delivery rollers 140 through gears 199 and 200.
This gear train provides a constant speed drive for the hold-back or pinch rollers, cut off rollers and the delivery rollers.
When a change in speed of the feed rollers 112 as well as of the tucker rollers is desired I interpose a Reeves drive intermediate the motor or prime mover 186 and the shaft 189. The driving gear of the Reeves drive is designated 201 and is, as will be understood,.fast with the pulley 187. The shaft 189 which, as will be understood, is driven through the Reeves drive carries at its end opposite to the drive the gear 190 above referred to and this gear is in mesh with a gear 202. The shaft on which this gear is mounted carriesgear 203 which meshes with gear 204 on the shaft of the lower right hand feed roller 113 as seen in Fig. 7. This shaft carries a gear on the inside of the frame of the machine meshing with a gear 205 on the shaft of the upper right hand feed roller 112. The gear 204 is in mesh with an intermediate gear 206 which also meshes with a gear 207 on the shaft of the lower left hand feed roller 113. The gear 207 meshes with a gear 208 on the shaft of the upper left hand feed roller 112.
The gear 207 is in mesh also with a gear 209 on the shaft 210 carrying the bevel gear 63 which as above explained meshes with a bevel gear 62 on the shaft 61 which provides the drive for the tucking rollers 53 and 104.
What I claim is:-
1. In a tube making machine, the combination of pasting mechanism, tubing mechanism, means mounted for individual adjustment for guiding a plurality of webs in spaced relation after leaving the pasting mechanism, and means intermediate the said adjustable guiding mechanism and 1 the tubing mechanism for bringing the webs together before passing into the tubing mechanism.
2. In a tube making machine, the combination ing into the tubing mechanism.
3. In a tube making machine, the combination of paste-applying mechanism, tubing mechanism, a plurality of individually adjustable spaced guiding rollers intermediate the paste-applying mechanism and the tubing mechanism, a guiding roller intermediate said first-mentioned rollers and the tubing mechanism, said last-mentioned guiding roller being adjustable with respect to the firstmentioned rollers, and brackets mounting all of said rollers and adjustable vertically and longitudinally of the machine to effect unitary adjustment of all of said rollers with respect to the pasting mechanism and the tubing mechanism.
4. In a tube making machine, tube-forming and tucking mechanism comprising in combination laterally adjustable tucker plates extending longitudinally of the machine and providing tuckinggrooves, positively driven tucker rollers cooperating with said plates, and means for adjusting said rollers vertically with respect to said tucker plate without disconnecting the driving mechanism for the rollers. j
5. In a tube making machine, tube-forming and tucking mechanism comprising in combination tucker plates providing tucker grooves, a plurality of tucker rollers cooperating with said grooves, a positive drive for said rollers, and means for adjusting said rollers laterally with respect to the tucker grooves without disconnecting the said driving mechanism.
6. In a tube making machine, tube-forming and tucking mechanism comprising ,in combination tucker plates extending longitudinally of the machine and providing tucker grooves, a plurality of tucking rollers cooperating with said grooves, gear trains for connecting said tucking rollers to each other for a positive drive, and means for adjusting said rollers laterally and vertically without disconnecting said gear trains.
7. In a tube making machine, tube-forming and tucking mechanism comprising in combination a plurality of tucker plates extending longitudinally of the machine and providing tucking grooves of gradually diminishing depth,- tucker rollers of gradually diminishing thickness adapted to enter said grooves and to cooperate therewith, a positive drive for said tucker rollers, and means for adjusting said rollers laterally and vertically without disconnecting the drive therefor.
B. In a tube making machine, tube-forming and tucking mechanism comprising in combination a plurality of laterally adjustable tucker plates extending lengthwise of the machine and providing tucker grooves of gradually diminishing depth, tucker rollers of gradually diminishing thickness cooperating with said grooves, a positive drive for said rollers, and means for adjusting said rollers laterally and vertically with respect to said tucker grooves.
9. In a tube making machine, tube-forming and tucking mechanism comprising in combination a plurality of tucker plates extending lengthwise of the machine and providing tucking grooves, a plurality of tucker'rollers cooperating with said grooves, positive driving mechanism for said rollers, and means for adjusting said rollers laterally and vertically with respect to said plates without disconnecting said driving mechanism.
10. In a tube making machine, tube-forming and tucking mechanism comprising in combination a plurality of laterally adjustable tucker plates extending longitudinally of the machine which provide tucker grooves of gradually diminishing width, a plurality of adjustable tucker rollers of gradually diminishing thickness cooperating with said grooves, and a positive drive for said rollers.
11. In a tube making machine, tube-forming and tucking mechanism comprising a plurality of sets of positively driven universally adjustable tucker rollers, means providing tucking grooves cooperable with said rollers, and means for effecting bodily movement of said sets of tucker rollers out of and into operative position with respect to a predetermined position of the tucker rollers on their movement to operative position with respect to the tuckergrooves.
13. In a tube making machine, tube-forming and tucking mechanism comprising in combination tucker plates extending longitudinally of the machine and providing tucker grooves of gradually diminishing width, sets of tucker rollers for each groove, said tucker rollers being of gradually diminishing thickness, a positive drive for said tucker rollers, a positive connection comprising cranks and a link between the tucker rollers at one side of the machine and the tucker rollers at the opposite side of the machine, and
a single lever adapted to simultaneously throw the tucker rollers at each side of the machine out of or into operative position with respect to said plates.
14. In a tube making machine, tube-forming and tucking mechanism comprising in combination plates extending longitudinally of the machine and providing tucking grooves of gradually diminishing width, sets of universally adjustable tucker rollers of gradually diminishing thickness rotatable in horizontal planes and adapted to cooperate with said grooves, a positive drive for saidrollers, and means for throwing said sets of tucker rollers simultaneously into and out of operative position with respect to said tucker grooves without interrupting the driving mechanism for the rollers.
15. In a tube making machine, tube-forming tion laterally adjustable plates providing tucker grooves extending longitudinally of the machine, a set of universally adjustable tucker rollers cooperating with one of said grooves, a set of tucker rollers for the other of said grooves, a positive drive for all of said rollers, means for adjusting the rollers of each set laterally of the machine without disturbing the setting of the rollers of the other set and without interrupting the positive drive for all of said rollers, and means operative when moved in one direction to shift both sets of tucker rollers bodily in opposite directions away from said grooves and when moved in the opposite direction to shift said rollers bodily in opposite directions toward said grooves.
16. In a tube making machine, tube-forming and tucking mechanism comprising in combination spaced plates extending longitudinally of the machine and providing tucker grooves, a plurality of tucker grooves of gradually diminishing width, a plurality of sets of universally adjustable tucker rollers of gradually diminishing thickness cooperable with said grooves, a plurality of sets of rollers adapted to overlie the paper passing through said forming and tucking mechanism,
a mount for said tucker rollers and said-lastmentioned rollers, adjusting mechanism for said mounts, means for connecting said sets of rollers to each other, single means for moving all of said rollers through said connecting means into and out of operative position with respect to said grooves, and stop mechanism for limiting the movement of the rollers to operative position.
17. In a tube making machine, the combination of tube-forming and tucking mechanism, feeding mechanism, a plate intermediate said tube-forming and tucking mechanism and the feeding mechanism and overlying the paper passing to the feeding mechanism, a rod for engagement with the upper face of said plate, a spring for holding the rod yieldingly against said plate, and a cam for raising the rod to move the same against the action of said spring away from said plate to permit of removal of the plate from the machine.
18. In a tube making machine, the combination of tube-forming and tucking mechanism, feed rollers, a plate extending transversely of the machine and intermediate the tube-forming and tucking mechanism and the feed rollers, said plate being adapted to overlie the material pass ing to the feed rollers, spring-pressed rods for engaging the upper face of said plate, cams for raising said rods to permit of the removal of said plate, and pins carried bythe plate and engageable with the frame of the machine for restricting the endwise motion of the plate.
19. In a tube making machine, the combination of tube-forming and tucking mechanism, feed rollers, a plate intermediate said first-mentioned mechanism and the feed rollers and adapted to engage the upper surface of thematerial passing from the forming and tucking mechanism to the feed rollers, said plate extending transversely of the machine, the edge of the plate facing the tubeforming and tucking mechanism being upturned to facilitate the entry of material beneath the plate, spring-pressed members for yieldingly holding said plate against upward movement, cams for raising said spring-pressed members to permit of the withdrawal of said plate, and pins on the upper surface of the plate cooperable with the frame of the machine for limiting endwise movement of the plate.