US 3780514 A
Description (OCR text may contain errors)
United States Patent [191 Rodermund et al.
[ METHOD FOR THE MANUFACTURE OF WREATHS, POMPONS, ROSE'ITES, AND THE LIKE  Inventors: Gerd Rodermund, Inder Breite 24;
Helmut Kappus, both of Lahr,
Germany  Assignee: said Roderinund, by said Kappus  Filed: Feb. 9, 1968 21 Appl. No.: 704,462
 US. Cl 57/156, 57/24, 57/167, 161/9, 161/15  Int. Cl. D04d 1/00, D04d 7/00  Field of Search....- 57/24, 143, 156, 57/167;16l/9,15
[5 6] References Cited UNITED STATES PATENTS 2,335,219 11/1943 Abramson 57/156 X [451 Dec. 25, 1973 37,385 1/1863 Comings et a]. 57/24 360,000 3/1887 Damall 57/143 1,436,898 11/1922 Ohashi 57/24 2,072,560 3/1937 Kranz et a1 57/24 UX 3,330,103 7/1967 Roderrnund et al. 57/24 3,357,166 12/1967 57/24 3,484,329 12/1969 Boisse....... 57/143 X Primary Examiner-John Petrakes Attorney-Dames, Kisselle, Raisch & Choate [5 7] 1 ABSTRACT A method and apparatus for manufacturing wreaths, pompons, rosettes and the like by utilizing a pair of rotating cutting and counter rolls each of which is provided with a peripheral groove at the passage of twistable wires for at least one strip which runs between the rolls and a take-off and twisting device. The strip is fed at a velocity whichis substantially greater than the take-off speed of the twisted wires.
7 Claims, 3 Drawing Figures METHOD FOR THE MANUFACTURE OF WREATHS, POMPONS, ROSETTES, AND THE LIKE The invention relates to a method and a machine for the manufacture of wreaths, pompons, rosettes and the like, as well as the objects produced.
Machines, particularly for the manufacture of artificial decorative evergreen, are well known. Such machines are equipped with two steel rolls, disposed parallel to one another, and making contact peripherally as they are driven continuously. Both rolls are fashioned with peripheral grooves which make it possible to pass a wire or thread through each of the two rolls. After they pass through the rolls, the wires or threads are twisted together andremoved. One of the two rolls, the so-called cutting roll, is channelled with fine, axially disposed teeth, while the other is fashioned with a smooth periphery. If a strip in the form of a thin sheet is fed between the pair of rolls symmetrically to the two opposite peripheral grooves, the strip, as it passes through the rolls, is spread out feather-like on each side of its longitudinal center line and then is bound in between the two intertwined wires. In this way it is possible to produce a wreath which, with the proper selection of color and material, resembles natural evergreen.
For ornamental and decorative purposes there is a demand for wreaths which are substantially fuller, that is have more strip material per unit length, than the above described artificial, decorative evergreen. It has been found that wreaths of this kind can be produced on a machine of the aforesaid type, by working with the method according to the invention at a strip feed speed which is considerably greater, preferably five to fifty times greater, than the take-off speed of the twisted wires or threads.
According to the invention, the wires or threads to'be twisted, which run through peripheral grooves in the pair of rolls, are removed and twisted substantially slower than would correspond to the peripheral velocity of the two rolls. In this way the rolls push so much strip material between the twisted wires or threads that, per unit length of the finished wreath material, preferably between 5 and 50 units of length of the strip are present.
The material considered for the strip in particular includes plastic sheet material, for example made of hardened polyvinyl chloride or polyethylene, which may be metallized or, in addition, colored on one or both sides, in order to achieve an effective appearance. Instead of one strip, two or more strips may be fed in at the same time. It is not necessary that the strip be spread (feathered) out by the pair of rolls. Instead of a wreath with tufted projecting needles, a rosette garland is formed when the strip is not spread out in this way, such that when the strip is multiply folded when pushed together it passes around the twisted wires or threads in the form of a tight coil. In order to prevent the feather-like spreading out of the strip, it is sufficient to widen the gap between the rolls slightly.
Pushing together and folding the strip can be facilitated in that the gap between the rolls is widened only so far that only light impressions are made in the strip, rather than the cuts whichare necessary to give it a feather effect.
The method according to the invention can be modified in such a way that the strip is fed in intermittently and that the take-off and twisting device operates only during the feed rest periods. For this purpose the strip is stopped at specified time intervals, and the take-off and twisting device is activated. The strip then is torn off between the two rolls and the previously established strip length is bound in between the twisted wires. As the take-off and twisting device continues to run, a piece of garland, consisting only of the twisted wires, is formed. The process is then repeated, that is the braking action on the strip is released and the take-off and twisting device is inactivated. If the garland is out between the section consisting only of twisted wires and the pushed together strip material, so-called pompon sticks are obtained in case the strip has been feathered out and so-called rosette sticks in case the strip has not been so treated. The section consisting only of twisted wires then is used as the mounting or fastening stick for the pompon or rosette.
"An improvement inthis process for manufacturing pompon or rosette sticks consists in that, during the feed shut-down periods for the first strip, a second, narrower strip is fed into the pair of rolls. This narrower strip, which preferably is fashioned featherlike on passing through the rolls, decorates the twisted wires between the pompons or rosettes made from the wider strip.
According to a further embodiment of the method according to the invention, there is also the possibility of feeding to the pair of rolls alternately strips of the same width, of different or differently colored material. This makes it possible to obtain very attractive color effects in the finished wreaths.
In addition to strips of plastic sheet material, strips of another material are contemplated for the method according to the invention. For example, this would include paper.
With reference to a machine for the manufacture of wreaths, pompons, rosettes or the like, with the initially discussed structure, the invention proposes that a braking device be provided for the strip, or for each strip, and furthermore a device which feeds the strip or the strips into the pair of rolls, and an adjustable cycle control for the braking device and the take-off and twisting device. The cycle control can be so adjustd, depending on the product desired, that the braking devices stop and release the corresponding strips at the correct points of time, and that the take-off and twisting device also is activated and inactivated at the correct points of time. The device which feeds the strip or the strips to the pair of rolls assures that, when its brake is released, the corresponding strip immediately again enters the pair of rolls.
In the following, the invention will be described in greater detail, in the light of the drawing. Namely:
FIG. I is a schematic representation of a machine, according to the invention, for carrying out the method according to the invention.
FIG. 2 is a front viewof the pair of rolls shown in FIG. 1.
FIG. 3 is a section of strip, fashioned feather-like in the pair of rolls.
The machine depicted in FIG. 1 is equipped with a pair of rolls which consists of the upper cutting roll 1 and the counter roll 1', disposed under it. Both rolls are suitably mounted and are kept in continuous rotation by a motor (not shown). The two axes of rotation of the rolls 1 and l are parallel and the generated surfaces of the rolls are directly in contact. As is shown more accurately in FIG. 2, the cutting roll 1 is provided with a dentate channelling consisting of cutting edges 2, disposed axially at uniform intervals over the generated surface. As a strip runs through, the cutting edges 2, in conjunction with the smooth surface of the counter roll 1, act to give the strip a feather-like structure. FIG. 3 shows a section of the strip 3 which has been treated in this manner. I 1
According to FIG. 1, two strips 3, 3' may be fed into the pair of rolls 1, 1'. The upper strip 3 runs over a guide 4 (drawn in broken line) to the rolls. In order always to give strip 3 a tendency to move in the direction of the pair of rolls, even when not yet engaged by them, a roller or roll 5, equipped with a friction lining, rests loosely on strip 3, in the vicinity of guide 4. The roll 5 is mounted on a swing support 6, which can rotate about the point 7. At the other end of this support 6, another roll 5 is disposed, so as to make contact with the periphery of the cutting roll 1. The two rolls 5, 5 are coupled by means of a crossed belt 8, so that roll 5 will have the correct direction of rotation.
The lower strip 3' is fed into the pair of rolls 1, 1' by means of a roller or roll 9 likewise provided with a friction liner. Both strips 3, 3 can be braked selectively by means of pneumatically operated pistons 10, 10'. For this purpose, valves l2, 12, shown only schematically, are provided in the compressed air lines 11, 11'.
A twistable wire l3, 13 is fed to each of the rolls 1, 1'. Both wires run over deflecting rolls 14, 14' and then into peripheral grooves 15, 15, which are shown in FIG. 2. After they have passed through the rolls 1, l, the two wires 13, 13' are caught into the hook 16 of a take-off and twisting device 17.
The device 17 consists of a small carriage 18 which runs on rails 20, by means of rolls 19. An electric motor 21 fed through flexible leads, is disposed on the carriage 18 and turns the hook 16, by means of a belt drive 22. A chain 24, which passes over wheel 23 and is driven by it, is attached at 25 to the carriage 18, thus pulling the carriage 18 away from the pair of rolls 1, 1. In the manufacture of pompon garlands, the pair of rolls 1, l first is supplied with the relatively broad strip 3 alone, with the take-off and twisting device 17 shut down. The rolls 1, 1' give the strip 3 a feather-like structure and push a predetermined length of strip between the twist wires 13, 13. Then strip 3 is braked by means of the compressed air piston 10, and the compressed air brake l0' for strip 3 is released. At the same time the take-off and twisting device 17 is activated, that is the hook 16 starts to rotate and carriage 18 is pulled away by means of chain 24. Thus the supplied length of strip 3 first is bound into the twisted wires l3, l3, and then the narrower strip 3, likewise given a feather-like structure by the rolls 1, 1. After a predetermined interval of time, the strip 3' is again braked, the brake 10 for strip 3 is released, and the take-0ff and twisting device is inactivated. By altemating repetition of the procedure described, pompons 26 are formed from the broader strip 3, and the narrower strip 3' decorates the sections 27 of twisted wire located between the pompons. The finished garlands can be cut apart into individual pompon sticks, with the twisted wire sections 27 forming the sticks.
A cycle control, not shown, operates the alternating braking of strips 3, 3' and turns the take-off and twisting device 17 on and off. The cycle control has relays for this purpose, as well as suitable devices for operating valves l2, 12. If so desired, electromagnetically operated brakes may be used in place of the pneumatically operated pistons l0, 10.
If during the above described manufacture of a pompon garland, the two rolls 1, 1 are displaced somewhat from one another, the strips 3, 3' are no longer cut featherwise and a rosette garland is formed.
This, in turn, can be divided into rosette sticks. To make it easier to fold the strip 3 into rosettes, the distance between the rolls 1, 1' is chosen just large enough for the cutting edges 2 (FIG. 2) to make only light impressions in the strip 3. There is also the possibility of providing cutting edges which cover only the width of strip 3. Then the twisted wire sections 27, between the rosettes, are clad with feathery material.
It is easy to see that, if strip 3 is permanently braked or omitted entirely, a continuous wreath, consisting of strip 3 only, is formed, and strip 3 can be fashioned with a feather-like structure, or not, as may be desired.
On the other hand, two strips of the same width 3, 3' can be used, but made of differently colored material, for example differently metallized sheet plastic. Then if the strips 3, 3' are fed alternately to the rolls 1, 1', a continuously shaped, but alternately colored, wreath is formed.
1. In the manufacture of wreaths, pompons, rosettes or the like utilizing a pair of rotating cutting and counter rolls, each of which is provided with a peripheral groove for the passage of twistable wires for at least one strip which runs between the rolls on both sides of the peripheral grooves and a take-off and twisting device for the twistable wires or threads, the steps of intermittently feeding the strip through the rotating cutting rolls at a velocity such that five to fifty units of length of the strip are fed per unit length of the finished material, feeding the wires through the grooves in the rolls and twisting the strip and wires together, said strip being fed intermittently and the take-off and twisting of the strip occurring only during the intervals between feeding.
2. The method according to claim 1 wherein said rolls give the strip a feather-like structure.
3. The method according to claim 1 wherein said rolls give said strip superficial impressions.
4. The method according to claim 1 characterized in that during the pauses in feeding the first strip, a second, narrower strip is fed into the pair of rolls.
5. The method according to claim 4 characterized in that the second, narrower strip is given a feather-like structure by the pair of rollers.
6. The method according to claim 4 characterized in that both strips are given a feather-like structure by the pair of rolls.
7. The method according to claim 1 characterized in that two or more strips of the same width made of different or differently colored material are fed alternately to the pair of rolls.