WO2014194470A1

WO2014194470A1 - Tin wire transmission apparatus

Info

Publication number: WO2014194470A1
Application number: PCT/CN2013/076712
Authority: WO
Inventors: 罗艺
Original assignee: Luo Yi
Priority date: 2013-06-04
Filing date: 2013-06-04
Publication date: 2014-12-11

Abstract

A tin wire transmission apparatus comprises a transmission mechanism (10) and at least one pair of rolling wheels (20) driven by the transmission mechanism (10). A rolling surface of at least one rolling wheel (20) is provided with a groove (21) in a direction consistent with a circumferential direction of the rolling wheel (20). The groove (21) is parallel to a center line of the circumference of the rolling surface of the rolling wheel (20). When the transmission apparatus works, the rolling wheels (20) oppositely clamp a tin wire (60); the rolling wheels (20) are driven by the transmission mechanism (10) to rotate opposite, the tin wire (60) is placed in the groove (21), a jump of the tin wire (60) is effectively prevented, and a transmission process is smoother.

Description

Tin wire conveyor

Technical field

The utility model belongs to the field of welding equipment, in particular to a wire feeding device for welding.

Background technique

In the prior art, the conveying mechanism for conveying the welding consumable tin wire usually adopts two rolling wheels to roll relative to each other to transmit the tin wire, and generally has anti-slip lines on the surface of the rolling wheel for anti-slip, but in the actual conveying process, the tin wire It will sway back and forth on the surface of the rolling wheel, which is prone to breakage of the tin wire and affect the normal operation of the tin wire during the welding process.

technical problem

The purpose of the utility model is to provide a tin wire conveying device, which aims to solve the problem that the prior art tin wire is easily broken during the conveying process.

Technical solution

The utility model is realized as follows, a tin wire conveying device comprising a transmission mechanism and at least one pair of rolling wheels driven by the transmission mechanism, wherein a rolling surface of at least one of the rolling wheels is provided with the rolling A groove having a uniform circumferential direction of the wheel, the groove being parallel to a circumferential center line of the rolling surface of the rolling wheel.

Preferably, the groove has a "V" shape or a "U" shape in cross section.

Preferably, the two inclined walls in the "V" shaped groove are provided with protrusions or the two U-shaped grooves are provided with protrusions.

Preferably, the protrusion extends stepwise toward the bottom of the "V" shaped groove or the "U" shaped groove.

Preferably, the top of the protrusion has a sharp horn shape.

Preferably, the grooves are laterally spaced apart from each other to provide a plurality of indentations such that the top edges of the grooves form a continuous tooth shape.

Preferably, the rolling wheel is formed by assembling at least three base wheels, the base wheel is divided into two opposite outer base wheels and one middle base wheel, and the outer base wheel edge is provided with a slope inclined to the middle or a curved surface, wherein the diameter of the middle base wheel is smaller than the diameter of the outer surface of the outer base wheel, the diameter of the middle base wheel and the inner surface of the outer base wheel are less than 0.1 mm, and the thickness of the middle base wheel is according to the solder wire The diameter is any value between 0.05 mm and 1 mm.

Preferably, the outer base wheel is provided with a protrusion on a slope or a curved surface.

Preferably, the fastening block is coaxial with the scroll wheel.

Preferably, the transmission mechanism is a set of gears including a drive gear, a driven gear and a synchronous gear, the rolling wheel being coaxial with the synchronous gear, the synchronous gear meshing with a drive gear or a driven gear.

Beneficial effect

According to the above technical solution, when the conveying device provided by the utility model is in operation, the rolling wheel is relatively clamped to the tin wire, and is driven to rotate in a relative direction after being driven by the transmission mechanism, and the tin wire is placed in the groove to effectively prevent The tin wire is shaken and the transfer process is smoother.

DRAWINGS

Figure 1 is a perspective view of the product provided by the utility model

2 is a schematic view of a product transmission mechanism provided by the utility model;

Figure 3 is a side view of the product rolling wheel provided by the utility model;

Figure 4 is an enlarged schematic view of a portion A of Figure 3;

Figure 5 is a schematic view of a scroll wheel according to a second embodiment of the present invention;

Figure 6 is a side view of the scroll wheel provided by the second embodiment of the present invention;

7 is a schematic view of a U-shaped groove rolling wheel provided by Embodiment 3 of the present invention;

8 is an exploded perspective view of a U-shaped groove rolling wheel according to Embodiment 3 of the present invention;

9 is a schematic view of a V-shaped groove rolling wheel provided by Embodiment 3 of the present invention;

10 is an exploded perspective view of a V-shaped groove rolling wheel according to Embodiment 3 of the present invention;

11 is a schematic view showing contact between a solder wire and a scroll wheel according to Embodiment 3 of the present invention;

12 is a schematic view showing contact between a solder wire and a scroll wheel according to Embodiment 3 of the present invention;

Embodiments of the invention

In order to make the objects, technical solutions and advantages of the present invention more comprehensible, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Embodiment 1 Referring to FIG. 1 to FIG. 4, the embodiment provides a tin wire transfer device including a transmission mechanism 10 and at least one pair of rolling wheels 20 driven by the transmission mechanism 10, at least one of which is The rolling surface of the rolling wheel 20 is provided with a groove 21 which coincides with the circumferential direction of the rolling wheel 20, and the groove 21 is parallel to the circumferential center line of the rolling surface of the rolling wheel 20. According to the above technical solution, when the conveying device provided by the present invention is in operation, the rolling wheel 20 is clamped relative to the solder wire 60, and driven by the transmission mechanism 10 to rotate in a relative direction, and the solder wire 60 is placed in the concave portion. The soldering wire 60 is effectively prevented from being swayed in the groove 21, and the conveying process is smoother.

The groove 21 has a "V" shape or a "U" shape in cross section. After the solder wire 60 is placed, the oblique wall or the curved surface of the "V" shaped or "U" shaped groove 21 is stuck with the solder wire 60, and is in contact with The surface is two points, and the opposite rolling wheel 20 is closed to give the solder wire 60 lateral pressure, which effectively prevents the solder wire 60 from swaying.

In order to increase the contact point of the solder wire 60 in the groove 21, the two inclined walls in the "V" shaped groove 21 are provided with protrusions 22 or two of the "U" shaped grooves. There are protrusions on the surface.

Further, the protrusions 22 extend in a stepped manner toward the bottom of the "V" shaped groove 21 or the "U" shaped groove, so that more contact points can be added, making the solder wire 60 unsuitable for turbulence.

In order to increase the fixing of the solder wire 60 by the protrusions 22, it is prevented from slipping or causing sway or twist during the conveyance, and the top of the protrusion 22 has a sharp horn shape.

The transmission mechanism 10 is a set of gears including a drive gear 11, a driven gear 12 and a synchronous gear 13, the rolling wheel 20 being coaxial with the synchronous gear 13, the synchronous gear 13 and the drive gear 11 or driven The gear 12 is meshed in a connecting relationship, the rolling wheel 20 is coaxially fixed with the synchronous gear 13, and the driving gear 11 is disposed under any one of the synchronous gears 13 and drives the synchronous gear 13, and at the same time, the driving gear 11 also drives a driven gear 12 located beside it, said driven gear 12 being located below the other of said synchronizing gears 13a and driving said synchronizing gear 13a, so that the two synchronizing

gears

13, 13a can be driven to rotate relative to each other. The rolling wheel 20 coaxially carried by the synchronous gear 13 is also rotated relative to each other, and a soldering wire 60 is input between the rolling wheels 20, and the soldering wire 60 is forced downward by the rolling wheel 20, The sharp-angled protrusions 22 in the groove 21 of the rolling wheel 20 are firmly oriented to output the solder wire 60, so that it cannot be tilted, and a driving gear 11 drives the rolling wheel 20 to roll. Also causing the scroll wheel 2 0 synchronous scrolling does not occur when the scrolling is fast and the scrolling is slow, causing the solder wire 60 to break and block the transport mechanism.

Embodiment 2, with reference to FIG. 5 and FIG. 6, the present embodiment is different from the above embodiment in that the groove 21a is laterally spaced apart from the plurality of notches 23a such that the top edge of the groove 21a forms a continuous tooth shape. 22a, the edge of the notch 23a can increase the contact point of the solder wire 60 with the groove 21a of the rolling wheel 20, so that the solder wire 60 is not suitable for turbulence.

Embodiment 3, with reference to FIG. 7 to FIG. 10, the present embodiment can adopt the design structure of the

grooves

21, 21a of the first embodiment and the second embodiment. This embodiment proposes a combination technique for the scroll wheel 20. The rolling wheel 20 is formed by combining at least three base wheels 30. The base wheel 30 is divided into two opposite outer base wheels 31 and one middle base wheel 32. The outer base wheel 31 is provided with an edge. a middle inclined bevel or curved surface, the middle base wheel 32 has a smaller diameter than the outer surface of the outer base wheel 31, and the diameter of the middle base wheel 32 and the inner surface of the outer base wheel 31 is less than 0.1 mm. The thickness of the middle base wheel 32 is any value between 0.05 mm and 1 mm depending on the diameter of the solder wire 60. Since the diameter of the solder wire 60 is divided into different specifications, generally between 0.1 mm and 2 mm, the scroll wheel If the diameter of the middle base wheel 32 of 20 is larger than the inner diameter of the outer base wheel 31 by 0.1 mm, the groove 21 formed is actually a small clip formed between the bottom plane and the inclined surface or curved surface of the outer base wheel 31. Angle (as shown in FIG. 11), a diameter solder wire 60 having a maximum diameter of 2 mm is placed in the groove 21 , it will not be able to simultaneously contact the inclined surface or curved surface of the two outer base wheels 31, so that the pressed solder wire 60 portion is easily squeezed into a small angle when the force is applied, so that the solder wire 60 is out of the acceptable range of deformation; In one case, if the diameter of the middle base wheel 32 of the rolling wheel is smaller than the inner diameter of the outer base wheel 31 by 0.1 mm (refer to FIG. 12), the groove 21 formed is easy to embed the solder wire 60. Or the extrusion deformation occurs, so the numerical value of the difference between the diameter of the middle base wheel 32 and the inner surface of the outer base wheel 31 is less than 0.1 mm to satisfy the rolling of the different diameter solder wires 60. The requirements of the wheel 20, but in this embodiment, it is considered that the diameter of the middle base wheel 32 is the same as the diameter of the inner surface of the outer base wheel 31 or the diameter difference is as small as possible. The thickness of the middle base wheel 32 is different according to the diameter of the solder wire 60. The importance of the middle base wheel 32 is described in this embodiment. The wheel 32 plays a supporting role after the solder wire 60 is placed in the recess 21, and the solder wire 60 having a circular cross section is supported by the middle base wheel 32 a little at the round bottom after being stressed. Further supported by the inclined surface or curved surface of the outer base wheel 31, the solder wire 60 can be prevented from being deformed, and at the same time, it can be smoothly ensured that the rolling wheel 20 is transported in one direction, if there is no medium base wheel 32, When only two outer base wheels 31 are combined, the circular solder wire 60 has a circular contact surface with no support surface support to the angle formed by the inclined surface or curved surface of the two outer base wheels 31 when the force is applied. The deformation of the extrusion causes the solder wire 60 to form a teardrop shape or a jujube shape, which causes the solder wire 60 to have adverse effects in the next step of breaking the tin.

The inclined surface or the curved surface of the outer base wheel 31 provided in this embodiment is provided with a protrusion, and the protrusion may coincide with the protrusion 22 described in the first embodiment, or may be continuous with the continuous tooth described in the second embodiment. The shape 22a is identical, the fastening block 40 is coaxial with the rolling wheel 20, and the fastening block 40 fixes the three base wheels 30 of the rolling wheel 20.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the present invention. The scope of protection of utility models.

Claims

A tin wire transfer device comprising a transmission mechanism and at least one pair of rolling wheels driven by the transmission mechanism, wherein at least one of the rolling wheels has a rolling surface that is aligned with a circumferential direction of the rolling wheel a groove that is parallel to a circumferential centerline of the rolling surface of the rolling wheel.
A wire transfer device according to claim 1, wherein said groove has a "V" shape or a "U" shape in cross section.
The tin wire transfer device according to claim 2, wherein said two V-shaped grooves are provided with protrusions on the two inclined walls or said "U"-shaped grooves are provided on the two curved surfaces. Raised.
A tin wire transfer apparatus according to claim 3, wherein said projections extend in a stepped manner toward the bottom of the "V" shaped groove or the "U" shaped groove.
A tin wire transfer apparatus according to claim 4, wherein said convex top portion has a sharp horn shape.
A tin wire transfer apparatus according to claim 2, wherein said grooves are laterally spaced apart from each other to provide a plurality of notches such that said groove top edges form a continuous tooth shape.
A tin wire transfer apparatus according to claim 2, wherein said rolling wheel is formed by stitching at least three base wheels, and said base wheel is divided into two opposite outer base wheels and one medium base wheel. The outer base wheel edge is provided with a slope or a curved surface inclined to the middle, the middle base wheel diameter is smaller than the outer surface diameter of the outer base wheel, and the difference between the diameter of the middle base wheel and the inner surface of the outer base wheel is less than 0.1 Mm, the thickness of the middle base wheel is any value between 0.05 mm and 1 mm depending on the diameter of the solder wire.
A tin wire transfer apparatus according to claim 7, wherein a convex surface or a curved surface of said outer base wheel is provided with a projection.
The outer surfaces of the two outer base wheels are provided with fastening blocks that can clamp the outer and middle base wheels, and the fastening blocks are coaxial with the rolling wheels.
A wire transfer device according to any one of claims 1 to 9, wherein said transmission mechanism is a set of gears including a drive gear, a driven gear and a synchronizing gear, said scroll wheel and said synchronizing gear Coaxially, the synchronizing gear meshes with a drive gear or a driven gear.