Circular loom jumper

Abstract

The invention discloses a circular loom jumper, which belongs to the field of plastic weaving machinery, solves the problems that the spring of the jumper is easy to fall off or inconvenient to operate, and the technical solution to solve the problem is mainly that the elastic reset part includes a connecting rod body and an elastic metal wire, one end of the connecting rod body is fixed to an insulating bracket, the elastic metal wire includes a first connecting end with a first connecting hole formed by spiral extension and an elastic section connected to the first connecting end, the other end of the connecting rod body is inserted into the first connecting hole and fixed by interference fit, and the circular loom jumper is reset by the elastic force generated by the bending of the elastic section relative to the first connecting end. The invention is mainly used to improve the reliability of the jumper and facilitate the operation of workers.

Description

Technical Field

[0001] The invention relates to plastic weaving machine accessories, in particular to a circular loom jumper. Background Art

[0002] When plastic circular looms are weaving, warp breaks often occur. In order to ensure product quality, the machine needs to be stopped in time after the warp breaks. Existing circular looms have widely adopted jumper bars to achieve warp break shutdown. For specific structures, please refer to utility model and invention patents such as 201320855926.X, 201621256982.1 and 201810557623.7. The elastic force generated by the spring stretching is used to achieve elastic reset of the jumper bar after the warp breaks, so as to stop the circular loom.

[0003] However, the spring is generally connected to the jumper rod by a spring hook. The problem of the spring being unhooked has been mentioned in the invention patent 201810557623.7. Therefore, a jumper rod structure without a spring is provided, and the elastic force generated by a metal wire or a metal spring sheet is used to reset the jumper rod. However, this structure also has some problems. First, in the structure using a metal wire reset, due to the good rigidity and large elastic coefficient of the metal wire, the warp needs to overcome a large elastic force to bend the metal wire after passing through the threading part, which in turn causes the jumper rod to exert excessive tension on the warp, making it easier for the warp to break. Second, in the structure using a metal spring sheet reset, the connection between the metal spring sheet and the metal wire requires a riveting process, and due to the small size of the parts, assembly is inconvenient. In addition, the above two structures have a common problem that there are more than 700 jumper rods on a four-shuttle circular loom. The number of jumper rods used when weaving different types of woven bags is different. Therefore, when weaving woven bags with a small number of threads, some jumper rods do not need to be threaded. However, at this time, these jumper rods are still subject to the elastic force generated by the metal wire or metal shrapnel. Since the direction of the elastic force generated by the metal wire or metal shrapnel is basically fixed in the vertical direction and cannot be adjusted at will, the metal wire or metal shrapnel is generally kept in a state of generating elastic force, and an insulating sleeve is put on the threading part like a jumper rod pulled by a spring to separate the jumper rod from the alarm ring to prevent the jumper rod from contacting the alarm ring and triggering by mistake. In addition, all the jumper rods are threaded only after the spring or metal wire or metal shrapnel is connected to the abutment ring. Therefore, the jumper rod is always in a state of being acted upon by elastic force, which reduces the threading efficiency. Summary of the invention

[0004] The purpose to be achieved by the present invention is to provide a circular loom jumper, the structure generating elastic force is not easy to fall off, the reliability of use is improved, and the structure generating elastic force can be bent in any direction, which is more convenient for workers to operate, and the insulating sleeve can be saved to reduce the cost of use.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a circular loom jumper, including a conductive rod body and an insulating bracket, the insulating bracket is fixed on the conductive rod body, an elastic reset part is provided on the insulating bracket, the elastic reset part is electrically conductive with the conductive rod body, the elastic reset part includes a connecting rod body and an elastic metal wire, one end of the connecting rod body is fixed to the insulating bracket, the elastic metal wire includes a first connecting end with a first connecting hole formed by spiral extension and an elastic section connected to the first connecting end, the other end of the connecting rod body is inserted into the first connecting hole and fixed by interference fit, and the circular loom jumper is reset by the elastic force generated by the bending of the elastic section relative to the first connecting end.

[0006] Furthermore, the elastic section is formed by spirally extending an elastic metal wire.

[0007] Furthermore, the first connecting end and the elastic section form a cylindrical spring that is tightly packed together.

[0008] Furthermore, the elastic section is formed by thickening an elastic metal wire.

[0009] Furthermore, a part of the elastic section is formed by spirally extending the elastic metal wire, and a part of the elastic section is formed by thickening the elastic metal wire.

[0010] Furthermore, the length of the elastic section is not less than 5 mm.

[0011] Furthermore, the length of the connecting rod body inserted into the first connecting hole is not less than 5 mm.

[0012] Furthermore, the elastic metal wire also includes a second connecting end that is spirally extended to form a second connecting hole, the elastic section is connected between the first connecting end and the second connecting end, and the elastic reset part also includes a movable rod body that is inserted into the second connecting hole and fixed by interference fit.

[0013] Furthermore, the length of the movable rod body inserted into the second connecting hole is not less than 5 mm.

[0014] Furthermore, the connecting rod body and the conductive rod body are an integrated structure.

[0015] After adopting the above technical scheme, the present invention has the following advantages: the structure formed by the spiral extension of the elastic metal wire is plugged into the connecting rod body, which is very convenient to assemble; at the same time, due to the interference fit, the elastic metal wire is slightly stretched by the connecting rod body to generate a certain elastic force, which can achieve a pre-tightening effect, so that it can be connected to the connecting rod body more reliably, and there is no risk of the elastic reset part falling off, and the reliability of use is greatly improved. Since the elastic section is connected to the connecting rod body through the first connecting end, the elastic section can bend and generate elastic force after being acted upon by external force in any direction, which gives the elastic section a great degree of freedom. In addition to bending in the vertical direction to generate elastic force to reset the jumper, it can also bend left and right to adjust the state. It is not limited to bending in the vertical direction like a metal shrapnel. Workers can easily adjust the elastic section between the bent state and the free state, which is more convenient to operate. In the process of installing the insulating bracket of the circular loom jumper to the circular loom, it is not necessary to first contact the elastic reset part with the abutment ring of the circular loom. The elastic reset part can be pushed onto the abutment ring when the jumper is needed. Since the elastic reset part does not contact the abutment ring, even if the conductive rod body contacts the alarm ring, it will not cause shutdown. Therefore, there is no need to set an insulating sleeve on the jumper that is not used for threading temporarily, which can reduce the use cost of the enterprise. In addition, during the worker's threading process, the elastic reset part can also be in a free state, and the jumper will not generate elastic force to resist the worker's threading operation, which is conducive to improving the worker's threading efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0018] Figure 2 It is a structural schematic diagram of the elastic reset portion in the first embodiment;

[0019] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of Embodiment 3 of the present invention;

[0021] Figure 5 This is a schematic diagram of the structure of Embodiment 4 of the present invention; DETAILED DESCRIPTION

[0022] Embodiment 1:

[0023] The present invention provides a circular loom jumper, such as Figure 1As shown, it includes a conductive rod body 1 and an insulating bracket 2, the insulating bracket 2 is fixed on the conductive rod body 1, and an elastic reset portion 3 is provided on the insulating bracket 2. The elastic reset portion 3 is electrically connected to the conductive rod body 1, and the elastic reset portion 3 includes a connecting rod body 31 and an elastic metal wire 32. One end of the connecting rod body 31 is fixed to the insulating bracket 2, and the conductive rod body 1 is electrically connected to the conductive rod body 1. Figure 2 As can be seen, the elastic metal wire 32 includes a first connecting end 321 which is spirally extended to form a first connecting hole and an elastic section 322 connected to the first connecting end 321. The other end of the connecting rod body 31 is inserted into the first connecting hole and fixed by interference fit. The circular loom jumper is reset by the elastic force generated by the bending of the elastic section 322 relative to the first connecting end 321.

[0024] The present invention utilizes a structure formed by spirally extending the elastic metal wire 32 to be plugged into the connecting rod body 31, which is very convenient to assemble. At the same time, due to the interference fit, the elastic metal wire 32 is slightly stretched by the connecting rod body 31 to generate a certain elastic force, which can achieve a pre-tightening effect, so that it can be connected to the connecting rod body 31 more reliably, and there is no risk of the elastic reset part 3 falling off, and the reliability of use is greatly improved. Since the elastic section 322 is connected to the connecting rod body 31 through the first connecting end 321, the elastic section 322 can bend and generate elastic force after being acted upon by external force in any direction. This gives the elastic section 322 a great degree of freedom. In addition to bending in the vertical direction to generate elastic force to reset the jumper, the elastic section 322 can also be bent left and right to adjust its state. It is not limited to bending in the vertical direction like a metal shrapnel. Workers can easily adjust the elastic section between the bent state and the free state, which is more convenient to operate. In the process of installing the insulating bracket 2 of the circular loom jumper to the hinge ring 6 of the circular loom, there is no need to first contact the elastic reset part 3 with the abutment ring 4 of the circular loom. The elastic reset part 3 can be pushed onto the abutment ring 4 when the jumper is needed. Since the elastic reset part 3 is not in contact with the abutment ring 4, even if the conductive rod body 1 is in contact with the alarm ring 5, it will not cause shutdown. Therefore, there is no need to set an insulating sleeve on the jumper that is not used for threading temporarily, which can reduce the company's use cost. In addition, during the worker's threading process, the elastic reset portion 3 can also be in a free state, and the jumper will not generate elastic force to resist the worker's threading operation, which is conducive to improving the worker's threading efficiency. The elastic section 322 is bent relative to the first connection end 321, and the elastic section 322 itself can be bent, or the elastic section 322 as a whole can be bent relative to the first connection end 321. The description of the abutment ring 4, the alarm ring 5, and the hinge ring 6 can refer to the prior art and will not be repeated here.

[0025] In order to increase the elasticity of the elastic section 322, in this embodiment, the elastic section 322 is formed by spirally extending the elastic metal wire 32. In this way, the first connection end 321 and the elastic section 322 have the same processing technology and can be processed in one go, which is also conducive to reducing processing costs and improving the overall consistency of the first connection end 321 and the elastic section 322.

[0026] Since the resetting of the jumping rod is achieved by the elastic force generated by the bending of the elastic section 322, the first connecting end 321 and the elastic section 322 can be selected to form a cylindrical spring that is tightly packed. If the cylinder spring is tightly packed, it cannot be compressed, and not only the connection reliability between the first connecting end 321 and the connecting rod body 31 can be improved, but also the bending and twisting ability of the elastic section 322 can be improved, and the reliable elastic force can be better improved.

[0027] In order to ensure that the elastic section 322 can reliably contact the abutment ring 4, the length L1 of the elastic section 322 can be controlled to be not less than 5 mm. If the length of the elastic section 322 is too short, it is easy to slide off the abutment ring 4 after the warp 9 is tightened, and the reliability is reduced.

[0028] In order to ensure the connection reliability between the connecting rod body 31 and the first connecting end 321 , the length L2 of the connecting rod body 31 inserted into the first connecting hole may be not less than 5 mm.

[0029] In addition, the insulating bracket 2 is generally injection molded. To facilitate the connection and fixation of the conductive rod 1, the connecting rod 31 and the insulating bracket 2, the connecting rod 31 and the conductive rod 1 can be designed as an integrated structure and connected and fixed directly by in-mold injection molding.

[0030] Embodiment 2:

[0031] like Figure 3 As shown, the elastic section 322 is formed by thickening the elastic metal wire 32. After the elastic metal wire 32 is thickened, the rigidity of contacting with the abutment ring 4 will be better, and the effect of electrical conduction will be better. Since there are two processing techniques for the elastic metal wire 32, the processing difficulty will increase.

[0032] For other contents not described in this embodiment, please refer to Embodiment 1.

[0033] Embodiment three:

[0034] In addition to adopting the structures of the first and second embodiments, it is also possible to Figure 4 As shown, a part of the elastic section 322 is formed by spirally extending the elastic metal wire 32, and a part is formed by thickening the elastic metal wire 32. Compared with the first embodiment, the elastic section 322 has better rigidity in contact with the abutment ring 4, and compared with the second embodiment, the elastic section 322 has better bending ability.

[0035] For other contents not described in this embodiment, please refer to Embodiment 1 and Embodiment 2.

[0036] Embodiment 4:

[0037] Considering that the existence of two processing techniques for the elastic metal wire 32 will increase the processing difficulty, in order to reduce the processing difficulty and at the same time improve the rigidity of the contact with the abutment ring 4, it can be as follows Figure 5 As shown, the elastic wire 32 also includes a second connection end 323 formed by spiral extension and having a second connection hole, the elastic section 322 is connected between the first connection end 321 and the second connection end 323, and the elastic reset portion also includes a movable rod body 33, which is inserted into the second connection hole and fixed by interference fit. The rigidity of the movable rod body 33 in contact with the abutment ring is relatively good.

[0038] In order to ensure the connection reliability between the movable rod body 33 and the second connection end 323 , the length L3 of the movable rod body 33 inserted into the second connection hole may be required to be no less than 5 mm.

[0039] For other contents not described in this embodiment, reference may be made to the above embodiments.

[0040] In addition to the above preferred embodiments, the present invention has other implementation modes. Those skilled in the art may make various changes and modifications based on the present invention. As long as they do not depart from the spirit of the present invention, they should all fall within the scope defined by the claims attached to the present invention.

Claims

1. A circular loom jumper, comprising a conductive rod body and an insulating bracket, wherein the insulating bracket is fixed to the conductive rod body, and an elastic reset portion is provided on the insulating bracket, wherein the elastic reset portion is electrically connected to the conductive rod body, and ... The elastic reset part includes a connecting rod body and an elastic metal wire. One end of the connecting rod body is fixed to the insulating bracket. The elastic metal wire includes a first connecting end which is spirally extended to form a first connecting hole and an elastic section connected to the first connecting end. The other end of the connecting rod body is inserted into the first connecting hole and fixed by interference fit. The circular loom jumper is reset by the elastic force generated by the bending of the elastic section relative to the first connecting end.

2. The circular loom jumper according to claim 1, characterized in that: The elastic section is formed by spirally extending an elastic metal wire.

3. The circular loom jumper according to claim 2, characterized in that: The first connecting end and the elastic section form a cylindrical spring which is tightly packed together.

4. The circular loom jumper according to claim 1, characterized in that: The elastic section is formed by thickening the elastic metal wire.

5. The circular loom jumper according to claim 1, characterized in that: A part of the elastic section is formed by spirally extending the elastic metal wire, and a part of the elastic section is formed by thickening the elastic metal wire.

6. The circular loom jumper according to any one of claims 1 to 5, characterized in that: The length of the elastic section is not less than 5 mm.

7. The circular loom jumper according to any one of claims 1 to 5, characterized in that: The length of the connecting rod body inserted into the first connecting hole is not less than 5 mm.

8. The circular loom jumper according to claim 1, 2, 4 or 5, characterized in that: The elastic metal wire also includes a second connecting end which is spirally extended to form a second connecting hole. The elastic section is connected between the first connecting end and the second connecting end. The elastic reset portion also includes a movable rod body which is inserted into the second connecting hole and fixed by interference fit.

9. The circular loom jumper according to claim 8, characterized in that: The length of the movable rod body inserted into the second connecting hole is not less than 5 mm.

10. The circular loom jumper according to any one of claims 1 to 5, characterized in that: The connecting rod body and the conductive rod body are an integrated structure.

Images