Lace warp knitting machine with low failure rate
By improving the pay-off and winding devices of the lace warp knitting machine and using a limiting structure and elastic tensioning roller group, the problems of wire entanglement and unevenness were solved, achieving stable traction and high-quality winding with a low failure rate.
Patent Information
- Application Number
- CN202422635706.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-01-03
- Filing Date
- 2024-10-30
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-10-30
AI Technical Summary
Lace warp knitting machines are prone to entanglement and unevenness during the wire pulling and winding process, resulting in a high failure rate, affecting work efficiency and product quality.
The traction bracket and winding device of the wire-releasing device are improved, and the stable traction and smooth winding of the wire are achieved through the limiting structure and elastic tensioning roller group in conjunction with the motor drive.
It effectively avoids wire entanglement, improves the stability of wire traction and the smoothness of winding, reduces the failure rate and improves product quality.
Smart Images
Figure CN223304655U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of warp knitting machines, in particular to a lace warp knitting machine with a low failure rate. Background Art
[0002] A lace warp knitting machine utilizes multiple reciprocating warp knitting combs to loop and weave multiple strands of wire onto several warp threads, creating a lace sheet with a defined lace pattern. During use, the multiple strands of wire need to be oriented and pulled onto the warp threads to form a sheet. This can lead to entanglement during the pulling process, or uneven winding of the formed lace sheet, which can cause malfunctions in the machine's operation, impacting efficiency and product quality. Utility Model Content
[0003] The purpose of the utility model is to provide a lace warp knitting machine with a low failure rate, and specifically to provide a lace warp knitting machine which reduces the failure rate of wire pulling and uneven winding by improving the pulling mechanism and the winding device.
[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical solution: a lace warp knitting machine with a low failure rate, including a wire-paying device, a warp knitting forming device and a winding device, the wire-paying device includes several groups of wire winding mechanisms and several traction brackets, the traction bracket includes a wire entry opening, a wire entry channel and a traction wheel arranged in sequence from top to bottom, and the traction wheel is provided with a groove for limiting the wire.
[0005] Specifically, the traction bracket includes a mounting base and limit strips plugged and fixed on both sides of the mounting base. A wire entry opening is formed between the upper ends of the limit strips on both sides of the mounting base, and a wire entry channel is formed between the middle parts of the limit strips. The traction wheel is rotatably installed on the mounting base and is correspondingly connected to the inner side of the lower end of the limit strip.
[0006] Specifically, the limiting strip is composed of an arc portion with an inward concave upper end, an arc portion with an inward convex middle portion, and an arc portion with an inward concave lower end.
[0007] Specifically, the limiting strip is further provided with an outwardly extending extension portion at the top of the inwardly concave arc portion at the upper end.
[0008] Specifically, the winding device includes a first tensioning roller group, a flattening roller group, a second tensioning roller group and a winding roller. The warp knitting forming device weaves multiple strands of different wires into lace sheets, which then pass through the first tensioning roller group, the flattening roller group and the second tensioning roller group in sequence and are then wound up by the winding roller.
[0009] Specifically, the first tensioning roller group includes a first movable tensioning roller and a first fixed roller, and the second tensioning roller group includes a second movable tensioning roller. The first movable tensioning roller is installed on the first elastic bracket, and the second movable tensioning roller is installed on the second elastic bracket.
[0010] Specifically, the flattening roller group includes a first flattening roller and a second flattening roller that are in contact with each other, and the first flattening roller and the second flattening roller are driven by a motor to rotate in opposite directions.
[0011] Specifically, the first elastic bracket is driven and connected by a first linear drive mechanism, and the second elastic bracket is driven and connected by a second linear drive mechanism. The driving direction of the first linear drive mechanism is consistent with the elastic direction of the first elastic bracket, and the driving direction of the second linear drive mechanism is consistent with the elastic direction of the second elastic bracket.
[0012] Specifically, the outer surfaces of the first flattening roller and the second flattening roller are both provided with elastic flattening layers.
[0013] The beneficial effects of the present invention are as follows: by improving the traction bracket of the wire-releasing device, the wire can be pulled efficiently and stably, avoiding the problem of entanglement and failure between the wires; at the same time, by improving the winding device, the flatness of the lace sheet during the winding process can be effectively improved, further reducing the failure rate and improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Attachment Figure 1 Schematic diagram of the overall structure of the lace warp knitting machine in the embodiment;
[0015] Attachment Figure 2 Detailed structural diagram of the traction bracket in the embodiment. DETAILED DESCRIPTION
[0016] Example 1, reference Figure 1-2 A lace warp knitting machine with a low failure rate includes a wire-releasing device 1, a warp knitting forming device 2 and a winding device 3. The wire-releasing device 1 includes several groups of wire winding mechanisms 11 and several traction brackets 12. The traction brackets 12 include a wire entry opening 121, a wire entry channel 122 and a traction wheel 123 arranged from top to bottom. The traction wheel 123 is provided with a groove for limiting the wire.
[0017] In this embodiment, the plurality of traction brackets 12 of the pay-off device 1 of the warp knitting machine are used to traction and guide the wires released from the plurality of wire winding mechanisms 11. After passing through the traction wheels 123 of the traction brackets 12, the wires enter the warp knitting forming device 2 to be woven into lace sheets. The lace sheets are then wound into rolls by the winding device 3. The wire entry opening 121, wire entry channel 122, and traction wheels 123 included in the traction brackets 12 facilitate the operator to place the wires on the traction brackets 12 at the start of the process. Specifically, the wires pass through the wire entry channel 122 from the wire entry opening 121 and fall onto the traction wheels 123. The traction wheels 123 can rotate freely to facilitate the conveyance of the wires. It should be noted that in this embodiment, the height of the traction brackets 12 should be higher than the height of the wire reel outlet end on the wire winding mechanism 11. The traction brackets 12 can be arranged in multiple rows and columns in both horizontal and vertical directions. The number of traction brackets can be increased or decreased according to the number of wires. Since the wires all enter the warp knitting forming device 2 after passing through the traction bracket 12, entanglement between the wires can be effectively avoided, and it is also convenient for operators to distinguish and place wires with different functions and positions, effectively improving the operability of the warp knitting machine and reducing the failure rate.
[0018] Specifically, the traction bracket 12 includes a mounting base 124 and limiting bars 125 that are plugged and fixed to both sides of the mounting base. A wire entry opening 121 is formed between the upper ends of the limiting bars 125 on both sides of the mounting base 124, and a wire entry channel 122 is formed between the middle portions of the limiting bars 125. A traction wheel 123 is rotatably mounted on the mounting base 124 and engages with the inner side of the lower end of the limiting bars 125. The limiting bars 125 are composed of an inwardly concave arc portion at the upper end, an inwardly convex arc portion at the middle portion, and an inwardly concave arc portion at the lower end. Furthermore, the limiting bars 125 are provided with an outwardly extending extension portion 126 at the top of the inwardly concave arc portion at the upper end. The extension portion 126 further facilitates the operator in placing the wire into the traction bracket 12. After the wire passes through the wire entry opening 121 and the wire entry channel 122, the relatively narrow wire entry channel 122 effectively prevents the wire from slipping out of the traction bracket 12.
[0019] In this embodiment, the winding device 3 comprises a first tensioning roller set 31, a flattening roller set 32, a second tensioning roller set 33, and a winding roller 34. After the warp knitting device 2 weaves multiple strands of different wires into a lace sheet, the lace sheet passes through the first tensioning roller set 31, the flattening roller set 32, and the second tensioning roller set 33 in sequence before being wound up by the winding roller 34. The first tensioning roller set 31 and the second tensioning roller set 33 are used to stretch and tension the knitted lace sheet, facilitating winding. A flattening roller set 32 is also provided between the first tensioning roller set 31 and the second tensioning roller set 33 to flatten the lace sheet and improve winding quality. In the winding device, the winding roller 34 and the flattening roller set 32 are both driven by a motor, while the first tensioning roller set 31 and the second tensioning roller set 33 rotate freely.
[0020] The first tensioning roller assembly 31 includes a first movable tensioning roller 311 and a first fixed roller 312, and the second tensioning roller assembly 33 includes a second movable tensioning roller 331. The first movable tensioning roller 311 is mounted on a first elastic bracket 313, and the second movable tensioning roller 331 is mounted on a second elastic bracket 332. The first movable tensioning roller 311 of the first tensioning roller assembly 31 can move up and down to adjust the tensioning force. Specifically, the first movable tensioning roller 311 is mounted on the first elastic bracket 313. The first elastic bracket 313 provides an elastic force to the first movable tensioning roller 311, thereby providing a relatively stable stretching force to the lace sheet and improving the winding quality. Similarly, the second movable tensioning roller 331 of the second tensioning roller assembly 33 is mounted on the second elastic bracket 332, and can also provide stable stretching to the lace sheet.
[0021] Furthermore, the first elastic support 313 is driven and connected by a first linear drive mechanism 314, and the second elastic support 332 is driven and connected by a second linear drive mechanism 333. The driving direction of the first linear drive mechanism 314 is consistent with the elastic direction of the first elastic support 313, and the driving direction of the second linear drive mechanism 333 is consistent with the elastic direction of the second elastic support 332. The first linear drive mechanism 314 and the second linear drive mechanism 333 respectively linearly drive the first elastic support 313 and the second elastic support 332, which can further increase the movable range of the first movable tensioning roller 311 and the second movable tensioning roller 331. In addition, a pressure sensor can be provided between the first linear drive mechanism 314 and the first elastic support 313, and between the second linear drive mechanism 333 and the second elastic support 332. The pressure sensor can detect the tensile force exerted on the lace sheet by the first and second movable tensioning rollers 311 and 331, thereby controlling the first and second linear drive mechanisms 314 and 333, further improving the stability of the tensile force exerted on the lace sheet.
[0022] Specifically, the flattening roller assembly 32 comprises a first flattening roller 321 and a second flattening roller 322, which are in contact with each other. The first and second flattening rollers 321 and 322 are driven by a motor to rotate toward each other. Each of the first and second flattening rollers 321 and 322 is provided with an elastic flattening layer 323 on its outer surface. By driving the first and second flattening rollers 321 and 322 in opposite directions, the lace sheet is flattened, improving winding quality and reducing winding failure rates. The elastic flattening layer 323 is provided on the outer surfaces of the first and second flattening rollers 321 and 322, and their outer surfaces are in contact with each other, thereby flattening the lace sheet.
[0023] Of course, the above are only preferred implementation methods of the present invention, and are not intended to limit the scope of use of the present invention. Therefore, any equivalent changes based on the principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A lace warp knitting machine with a low failure rate, characterized by: It includes a wire-releasing device, a warp knitting forming device and a winding device. The wire-releasing device includes several groups of wire winding mechanisms and several traction brackets. The traction bracket includes a wire entry opening, a wire entry channel and a traction wheel arranged in sequence from top to bottom. The traction wheel is provided with a groove for limiting the wire.
2. A lace warp knitting machine with a low failure rate according to claim 1, characterized in that: The traction bracket includes a mounting base and limit strips plugged and fixed on both sides of the mounting base. A wire entry opening is formed between the upper ends of the limit strips on both sides of the mounting base, and a wire entry channel is formed between the middle parts of the limit strips. The traction wheel is rotatably mounted on the mounting base and is correspondingly connected to the inner side of the lower end of the limit strip.
3. The lace warp knitting machine with low failure rate according to claim 2, characterized in that: The limiting strip is composed of an arc portion with an inward concave upper end, an arc portion with an inward convex middle portion and an arc portion with an inward concave lower end.
4. The lace warp knitting machine with low failure rate according to claim 3, characterized in that: The limiting strip is further provided with an outwardly extending extension portion at the top end of the inwardly concave arc portion.
5. The lace warp knitting machine with low failure rate according to claim 1, characterized in that: The winding device includes a first tensioning roller group, a flattening roller group, a second tensioning roller group and a winding roller. The warp knitting forming device weaves multiple strands of different wires into lace sheets, which then pass through the first tensioning roller group, the flattening roller group and the second tensioning roller group in sequence and are then wound up by the winding roller.
6. The lace warp knitting machine with low failure rate according to claim 5, characterized in that: The first tensioning roller group includes a first movable tensioning roller and a first fixed roller, and the second tensioning roller group includes a second movable tensioning roller. The first movable tensioning roller is installed on a first elastic bracket, and the second movable tensioning roller is installed on a second elastic bracket.
7. The lace warp knitting machine with low failure rate according to claim 5, characterized in that: The flattening roller group includes a first flattening roller and a second flattening roller that are in contact with each other, and the first flattening roller and the second flattening roller are driven by a motor to rotate in opposite directions.
8. The lace warp knitting machine with low failure rate according to claim 6, characterized in that: The first elastic bracket is driven and connected by a first linear drive mechanism, and the second elastic bracket is driven and connected by a second linear drive mechanism. The driving direction of the first linear drive mechanism is consistent with the elastic direction of the first elastic bracket, and the driving direction of the second linear drive mechanism is consistent with the elastic direction of the second elastic bracket.
9. The lace warp knitting machine with low failure rate according to claim 7, characterized in that: The outer surfaces of the first flattening roller and the second flattening roller are both provided with elastic flattening layers.