Double-belt drive for a warp knitting machine
By designing a double-belt drive system for warp knitting machines, which includes automatic lubrication and debris cleaning functions, the problems of insufficient oil in the drive system and debris scattering were solved, achieving stable operation and safe production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- FUJIAN YUNKE MACHINERY CO LTD
- Filing Date
- 2026-01-15
- Publication Date
- 2026-07-03
AI Technical Summary
The existing warp knitting machine transmission device cannot automatically lubricate when there is a lack of lubricating oil, resulting in unstable transmission, affecting production efficiency, and yarn debris flying everywhere, affecting workers and equipment.
Design a dual-belt drive device, including a lubrication component and a collection component. The lubrication component can automatically replenish lubricating oil, and the collection component can clean up yarn debris. Automatic lubrication and debris cleaning are achieved through the lubricating oil tank and the collection tank, respectively.
It enables automatic lubrication in the absence of oil, avoids vibration and wear of the transmission device, extends service life, reduces the impact of debris on personnel and equipment, and improves production efficiency and safety.
Smart Images
Figure CN121538787B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of warp knitting machine technology, and specifically relates to a double belt drive device for warp knitting machines. Background Technology
[0002] Warp knitting is a technique that uses one or more groups of parallel yarns fed into all the working needles of a machine in the warp direction to form loops simultaneously, creating a knitted fabric. The resulting fabric is called a warp-knitted fabric. The machine that performs this type of warp knitting is called a warp knitting machine, which mainly consists of a knitting mechanism, a guide bar traverse mechanism, a warp feed mechanism, a take-up and pull-out mechanism, and a transmission mechanism.
[0003] When a warp knitting machine guides the yarn onto the knitting needles via a transmission device, the guide needles continuously reciprocate along the reciprocating screw and slide rail. However, current technology cannot automatically lubricate the reciprocating screw and slide rail when they lack lubricating oil. Operators must notice the lack of lubricating oil, stop the machine, and add lubricating oil. This method not only affects the normal production of the warp knitting machine but also has low efficiency and the amount added is difficult to control. In addition, during the knitting process, the yarn rubs against the parts of the warp knitting machine, generating debris that flies everywhere, affecting the health of surrounding workers and the internal transmission components of the warp knitting machine. To address these issues, designing a double-belt drive device for warp knitting machines has become a problem that we need to solve. Summary of the Invention
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a double belt drive device for warp knitting machines.
[0005] To achieve the above objectives, the present invention provides a double belt drive device for a warp knitting machine, comprising a bracket, a control panel and a protective cover fixedly mounted on one side of the bracket, a motor fixedly mounted on the inner side of the bracket, a first pulley fixedly connected to the output shaft end of the motor, a first belt and a second belt tensioned on the outer wall of the first pulley, a second pulley tensioned inside the first belt and the second belt, a reciprocating screw fixedly connected to one side of the second pulley, the reciprocating screw rotatably connected inside the bracket, a yarn guide needle sleeved on the outer wall of the reciprocating screw, a slide rail fixedly mounted inside the bracket, and the yarn guide needle slidably connected to the outer wall of the slide rail;
[0006] A lubrication assembly is used to automatically lubricate the reciprocating lead screw and slide rail when the lubrication oil is insufficient. The lubrication assembly is connected to the reciprocating lead screw, the yarn guide needle and the slide rail.
[0007] A collection component for collecting yarn debris, the collection component being connected to the yarn guide needle.
[0008] In the above technical solution, the lubrication assembly further includes a lubricating oil tank fixedly installed on the outer wall of the guide needle, a piston tube fixedly installed on the inner wall of the lubricating oil tank, a spring fixedly installed inside the piston tube, a slider fixedly installed at one end of the spring, an air hole opened inside the slider, and a connecting rod fixedly connected to the side of the slider away from the spring.
[0009] In the above technical solution, a push block is fixedly installed on the outer wall of the connecting rod, a sliding plate abuts against one side of the push block, the sliding plate is sleeved on the outer wall of the connecting rod, the slider and the sliding plate are slidably connected inside the piston tube, an exhaust port is opened at the bottom of the piston tube, and an air inlet is opened at the top of the lubricating oil tank.
[0010] In the above technical solution, the connecting rod is further inserted into the lubricating oil tank and the piston tube. The end of the connecting rod away from the slider is fixedly connected to a connecting rod. The outer wall of the connecting rod is fixedly connected to a sliding sleeve. The inside of the sliding sleeve is provided with a lubricating cloth. The sliding sleeve and the lubricating cloth are slidably connected to the outer wall of the slide rail. The sliding sleeve is located on one side of the yarn guide needle.
[0011] In the above technical solution, a three-way flexible hose is further fixedly connected to the bottom of the sliding sleeve. The three-way flexible hose is fixedly connected to the bottom of the lubricating oil tank. A connecting block is fixedly connected to one end of the three-way flexible hose. The connecting block is sleeved on the outer wall of the reciprocating lead screw and fixedly connected to one side of the yarn guide needle.
[0012] In the above technical solution, the connecting block is further provided with a retaining ring inside, a connecting member is inserted inside the retaining ring, an elastic piece is fixedly connected between the retaining ring and the connecting member, and a sliding ball is provided inside the connecting member, which is inserted into the thread groove of the reciprocating lead screw.
[0013] In the above technical solution, the collecting assembly further includes a collecting box inserted into the outer wall of the yarn guide needle, a screw inserted into the inside of the collecting box, the screw being threaded into the inside of the yarn guide needle, and two rotating parts being rotatably connected inside the collecting box.
[0014] In the above technical solution, furthermore, multiple scrapers are fixedly installed on the outer walls of both rotating parts, gears are fixedly installed on the outer walls of one end of both rotating parts, the two gears mesh with each other, and multiple scraping parts are fixedly installed inside the collection box.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] By setting up a lubrication component, the reciprocating screw and slide rail can be automatically lubricated when there is a lack of lubricating oil, thus avoiding vibration, friction and wear in the transmission device due to lack of lubricating oil, which would affect the normal operation of the warp knitting machine and the service life of the transmission device.
[0017] By setting up a collection component, debris on the yarn can be collected, reducing the amount of debris generated in subsequent processing steps, minimizing the impact of debris on surrounding workers and transmission devices, and improving the user experience for workers.
[0018] The dual-belt drive formed by the first and second belts can reduce the tension on a single belt, extend belt life, reduce bearing load, balance traction, make the transmission smoother, and ensure that the other belt can continue to work after one belt breaks, thus maintaining the stable operation of the transmission device. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure proposed in this invention;
[0020] Figure 2 This is a first-view structural cross-sectional view of the lubrication assembly proposed in this invention;
[0021] Figure 3 The present invention proposes Figure 2 Enlarged view of the A-section structure;
[0022] Figure 4 This is a second-view structural cross-sectional view of the lubrication assembly proposed in this invention;
[0023] Figure 5 The present invention proposes Figure 4 Enlarged view of the structure of section B;
[0024] Figure 6 This is a cross-sectional view of the collection component structure proposed in this invention;
[0025] Figure 7 The present invention proposes Figure 6 Enlarged view of the C-section structure.
[0026] In the diagram: 1. Bracket; 2. Control panel; 3. Protective cover; 4. Motor; 5. First pulley; 6. First belt; 7. Second belt; 8. Second pulley; 9. Reciprocating screw; 10. Guide needle; 11. Slide rail; 12. Lubricating oil tank; 13. Piston tube; 14. Spring; 15. Slider; 16. Air hole; 17. Connecting rod; 18. Push block; 19. Sliding plate; 20. Connecting rod; 21. Exhaust port; 22. Air inlet; 23. Sliding sleeve; 24. Lubricating cloth; 25. T-connector hose; 26. Connecting block; 27. Snap ring; 28. Elastic plate; 29. Connector; 30. Sliding ball; 31. Collection box; 32. Screw; 33. Rotating part; 34. Scraper; 35. Gear; 36. Scraper. Detailed Implementation
[0027] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0028] like Figure 1 and Figure 6 The diagram illustrates a double-belt drive device for a warp knitting machine, comprising a bracket 1. A control panel 2 and a protective cover 3 are fixedly mounted on one side of the bracket 1. A motor 4 is fixedly mounted on the inner side of the bracket 1. A first pulley 5 is fixedly connected to the output shaft end of the motor 4. A first belt 6 and a second belt 7 are tensioned on the outer wall of the first pulley 5. This double-belt drive mechanism, using the first belt 6 and the second belt 7, reduces the tension on individual belts, extends belt life, reduces bearing load, balances traction, and makes transmission smoother. Furthermore, if one belt breaks, the other belt can continue to work, maintaining the stable operation of the drive device. The first belt 6 and the second belt 7 are internally tensioned with a second pulley 8. A reciprocating screw 9 is fixedly connected to one side of the second pulley 8. The reciprocating screw 9 is rotatably connected to the inside of the bracket 1. A yarn guide needle 10 is sleeved on the outer wall of the reciprocating screw 9. A slide rail 11 is fixedly installed inside the bracket 1. The yarn guide needle 10 is slidably connected to the outer wall of the slide rail 11. A lubrication component is used to automatically lubricate the reciprocating screw 9 and the slide rail 11 when the lubricating oil is insufficient. The lubrication component is connected to the reciprocating screw 9, the yarn guide needle 10 and the slide rail 11. A collection component is used to collect yarn debris. The collection component is connected to the yarn guide needle 10.
[0029] like Figure 1 and Figure 5As shown, the lubrication assembly includes a lubricating oil tank 12 fixedly installed on the outer wall of the guide needle 10. A piston tube 13 is fixedly installed on the inner wall of the lubricating oil tank 12. A spring 14 is fixedly installed inside the piston tube 13. A slider 15 is fixedly installed at one end of the spring 14. An air hole 16 is opened inside the slider 15. A connecting rod 17 is fixedly connected to the side of the slider 15 away from the spring 14. A push block 18 is fixedly installed on the outer wall of the connecting rod 17. A sliding plate 19 abuts against one side of the push block 18. The sliding plate 19 is sleeved on the outer wall of the connecting rod 17. The slider 15 and the sliding plate 19 are slidably connected inside the piston tube 13. An exhaust port 21 is opened at the bottom of the piston tube 13. An air inlet 22 is opened at the top of the lubricating oil tank 12. The connecting rod 17 is inserted into the lubricating oil tank 12 and the piston tube 13. The connecting rod 17 is located away from the slider 15. A connecting rod 20 is fixedly connected to the end of the slide rail 11. A sliding sleeve 23 is fixedly connected to the outer wall of the connecting rod 20. A lubricating cloth 24 is provided inside the sliding sleeve 23. Both the sliding sleeve 23 and the lubricating cloth 24 are slidably connected to the outer wall of the slide rail 11. The sliding sleeve 23 is located on one side of the guide needle 10. A three-way hose 25 is fixedly connected to the bottom of the sliding sleeve 23. The three-way hose 25 is fixedly connected to the bottom of the lubricating oil tank 12. A connecting block 26 is fixedly connected to one end of the three-way hose 25. The connecting block 26 is sleeved on the outer wall of the reciprocating screw 9. The connecting block 26 is fixedly connected to one side of the guide needle 10. A retaining ring 27 is snapped inside the connecting block 26. A connecting piece 29 is inserted inside the retaining ring 27. An elastic piece 28 is fixedly connected between the retaining ring 27 and the connecting piece 29. A sliding ball 30 is provided inside the connecting piece 29. The sliding ball 30 is inserted into the thread groove of the reciprocating screw 9.
[0030] The lubrication component is used to self-lubricate the reciprocating screw 9 and the slide rail 11, so as to avoid affecting the stability of the reciprocating transmission of the yarn guide needle 10, and to avoid the lack of lubrication leading to increased transmission friction and wear between the reciprocating screw 9, the yarn guide needle 10 and the slide rail 11, which would affect the service life.
[0031] Specifically, when the transmission device is working, the motor 4 drives the first belt 6 and the second belt 7 to rotate synchronously via the first pulley 5. The first belt 6 and the second belt 7 then drive the reciprocating screw 9 to rotate via the second pulley 8. This, in turn, causes the reciprocating screw 9 to drive the yarn guide needle 10 to reciprocate along the outer wall of the slide rail 11, allowing the yarn guide needle 10 to place the yarn onto the knitting needles for weaving. During this reciprocating transmission of the yarn guide needle 10, the yarn guide needle 10 will also move the lubricating oil tank 12 and the connecting block 26 together. The movement of the lubricating oil tank 12 will... The piston tube 13, spring 14, slider 15, connecting rod 17, and connecting rod 20 drive the sliding sleeve 23 to slide along the outer wall of the slide rail 11, following the guide needle 10. When the lubricating oil on the outer wall of the slide rail 11 is insufficient, the friction between the slide rail 11 and the sliding sleeve 23 increases, increasing the resistance that drives the sliding sleeve 23 to slide along the outer wall of the slide rail 11 with the guide needle 10. At this time, the sliding sleeve 23 will pull the spring 14 to extend through the connecting rod 20, connecting rod 17, and slider 15, causing the slider 15 to slide along the piston tube 13 towards the connecting rod 20 and fit against the sliding plate 19. When the air hole 16 on the slider 15 is sealed by the slide plate 19, and the hole on the slide plate 19 is sealed by the slider 15, they cooperate to form a piston structure. Subsequently, the slider 15 and the slide plate 19 will squeeze the air inside the piston tube 13 and discharge it into the lubricating oil tank 12 through the exhaust port 21, increasing the pressure inside the lubricating oil tank 12. This allows the lubricating oil inside the lubricating oil tank 12 to be discharged into the sliding sleeve 23 through the three-way hose 25, wetting the lubricating cloth 24 inside the sliding sleeve 23. The lubricating cloth 24 then applies the lubricating oil to the slide rail 11. When the slide rail 11 is lubricated... Afterwards, the friction between the sliding sleeve 23 and the slide rail 11 decreases, and the spring 14 can pull the slider 15 back to its original position. The slider 15 then pulls the sliding sleeve 23 closer to the guide needle 10 through the connecting rod 17 and the connecting rod 20. During this process, the slider 15 will first separate from the sliding plate 19, so that the slider 15 and the sliding plate 19 stop their sealing and allow gas to flow. Then the push block 18 on the connecting rod 17 will push the sliding plate 19 back to its original position, thus preventing the gas inside the lubricating oil tank 12 from being sucked up and the lubricating oil tank 12 from being drawn out of the lubricating cloth 24 through the three-way hose 25.
[0032] As the connecting block 26 slides along the outer wall of the reciprocating screw 9 following the guide needle 10, the sliding ball 30 inside the connecting block 26 slides inside the thread groove of the reciprocating screw 9. When the lubricating oil in the reciprocating screw 9 is insufficient, the sliding resistance of the sliding ball 30 inside the thread groove of the reciprocating screw 9 increases, causing the sliding ball 30 to start driving the connecting piece 29 to move inside the connecting block 26. This causes the connecting piece 29 to pull the elastic piece 28 to deform and stop blocking the connection between the connecting block 26 and the three-way hose 25, allowing the lubricating oil inside the three-way hose 25 to enter the interior of the connecting block 26 and lubricate the reciprocating screw 9. After the reciprocating screw 9 is lubricated, the reciprocating screw... The sliding resistance between the threaded groove of rod 9 and the ball 30 is reduced. The elastic plate 28 can pull the ball 30 back to its original position through the connector 29, so that the connector 29 seals the connecting block 26 and the connecting part of the connecting block 26, and stops injecting lubricating oil into the connecting block 26. Finally, it achieves automatic lubrication when the reciprocating screw 9 and the slide rail 11 lack lubricating oil. This avoids the situation where the operator does not notice the lack of lubrication of the reciprocating screw 9 and the slide rail 11 in time, which would cause friction and wear in the transmission between the reciprocating screw 9, the guide needle 10 and the slide rail 11, reducing the service life. It also avoids the inefficiency of the operator manually adding lubricating oil when stopping the machine, which would affect the normal operation and production of the warp knitting machine.
[0033] like Figure 7 As shown, the collection assembly includes a collection box 31 inserted into the outer wall of the yarn guide needle 10. A screw 32 is inserted into the inside of the collection box 31. The screw 32 is threaded into the inside of the yarn guide needle 10. Two rotating parts 33 are rotatably connected inside the collection box 31. Multiple scrapers 34 are fixedly installed on the outer wall of each of the two rotating parts 33. A gear 35 is fixedly installed on the outer wall of one end of each of the two rotating parts 33. The two gears 35 mesh with each other. Multiple scraping parts 36 are fixedly installed inside the collection box 31.
[0034] The collection component is used to clean up debris from the yarn, preventing it from flying around during subsequent processing and affecting the health of surrounding workers and the transmission of the warp knitting machine.
[0035] Specifically, during the process of the yarn being placed on the knitting needle by the guide needle 10, the yarn enters vertically into the interior of the guide needle 10 under the guidance of the rotating component 33, allowing the yarn to pass vertically through the scraper 36. At this time, the hole inside the scraper 36, which is larger than the diameter of the yarn, scrapes away all the debris on the yarn, collecting it inside the collection box 31. This reduces the generation of debris during subsequent yarn processing and minimizes the impact of debris on the workers and transmission components. Simultaneously, as the yarn passes through the rotating component 33, passes through the guide needle 10, and is placed on the knitting needle, the yarn drives the rotating component 33 to rotate due to friction. This causes the two rotating components 33 to rotate synchronously through the gear 35, which in turn causes the scraper 34 on the rotating component 33 to rotate, pushing excess debris accumulated around the connecting block 26 to other parts inside the collection box 31. It should be noted that by setting the hole inside the scraper 36 to be larger than the diameter of the yarn, friction between the hole of the scraper 36 and the yarn can be avoided.
[0036] Working principle: When the transmission device is working, the motor 4 drives the first belt 6 and the second belt 7 to rotate synchronously through the first pulley 5. The first belt 6 and the second belt 7 drive the reciprocating screw 9 to rotate through the second pulley 8. The reciprocating screw 9 then drives the yarn guide needle 10 to reciprocate along the outer wall of the slide rail 11. The yarn guide needle 10 places the yarn on the knitting needle for knitting. During the reciprocating transmission of the yarn guide needle 10, the yarn guide needle 10 will drive the lubrication component to move together with the outer wall of the reciprocating screw 9 and the slide rail 11. The lubrication component can automatically lubricate the reciprocating screw 9 and the slide rail 11 when there is a lack of lubricating oil. This prevents the transmission device from vibrating, rubbing and wearing due to lack of lubricating oil, which would affect the normal operation of the warp knitting machine and the service life of the transmission device. At the same time, when the slide rail 11 places the yarn on the knitting needle, the collecting component can collect the yarn debris, reducing the debris generated by the yarn in subsequent processing steps, reducing the impact of debris on surrounding personnel and the transmission device, and improving the user experience.
[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.
Claims
1. A double-belt drive for a warp knitting machine comprising a support (1), characterized in that, A control panel (2) and a protective cover (3) are fixedly installed on one side of the bracket (1). A motor (4) is fixedly installed on the inner side of the bracket (1). A first pulley (5) is fixedly connected to the output shaft end of the motor (4). A first belt (6) and a second belt (7) are tensioned on the outer wall of the first pulley (5). A second pulley (8) is tensioned inside the first belt (6) and the second belt (7). A reciprocating screw (9) is fixedly connected to one side of the second pulley (8). The reciprocating screw (9) is rotatably connected inside the bracket (1). A yarn guide needle (10) is sleeved on the outer wall of the reciprocating screw (9). A slide rail (11) is fixedly installed inside the bracket (1). The yarn guide needle (10) is slidably connected to the outer wall of the slide rail (11). A lubrication assembly is used to automatically lubricate the reciprocating screw (9) and slide rail (11) when the lubricating oil is insufficient. The lubrication assembly is connected to the reciprocating screw (9), the yarn guide needle (10) and the slide rail (11). The lubrication assembly includes a lubricating oil tank (12) fixedly installed on the outer wall of the guide needle (10). A piston tube (13) is fixedly installed on the inner wall of the lubricating oil tank (12). A spring (14) is fixedly installed inside the piston tube (13). A slider (15) is fixedly installed at one end of the spring (14). An air hole (16) is opened inside the slider (15). A connecting rod (17) is fixedly connected to the side of the slider (15) away from the spring (14). A push block (18) is fixedly installed on the outer wall of the connecting rod (17). A sliding plate (19) abuts on one side of the push block (18). A connecting rod (20) is fixedly connected to the end of the connecting rod (17) away from the slider (15). A sliding sleeve (23) is fixedly connected to the outer wall of the connecting rod (20). The inside of the sleeve (23) is provided with a lubricating cloth (24). The bottom of the sleeve (23) is fixedly connected with a three-way hose (25). The three-way hose (25) is fixedly connected to the bottom of the lubricating oil tank (12). One end of the three-way hose (25) is fixedly connected with a connecting block (26). The connecting block (26) is sleeved on the outer wall of the reciprocating screw (9). The connecting block (26) is fixedly connected to one side of the yarn guide needle (10). The inside of the connecting block (26) is a retaining ring (27). The inside of the retaining ring (27) is a connector (29). The retaining ring (27) and the connector (29) are fixedly connected with an elastic piece (28). The inside of the connector (29) is provided with a ball (30). The ball (30) is inserted into the thread groove of the reciprocating screw (9). A collection component for collecting yarn debris, the collection component being connected to the yarn guide needle (10).
2. A double-belt drive for a warp knitting machine according to claim 1, characterized in that, The slide plate (19) is sleeved on the outer wall of the connecting rod (17). The slider (15) and the slide plate (19) are slidably connected inside the piston tube (13). The bottom of the piston tube (13) is provided with an exhaust port (21), and the top of the lubricating oil tank (12) is provided with an air inlet (22).
3. A double-belt drive for a warp knitting machine according to claim 1, characterized in that, The connecting rod (17) is inserted into the inside of the lubricating oil tank (12) and the piston tube (13). The sliding sleeve (23) and the lubricating cloth (24) are slidably connected to the outer wall of the slide rail (11). The sliding sleeve (23) is located on one side of the guide needle (10).
4. A double-belt drive for a warp knitting machine according to claim 1, characterized in that, The collecting assembly includes a collecting box (31) inserted into the outer wall of the yarn guide needle (10), a screw (32) inserted into the inside of the collecting box (31), the screw (32) being threaded into the inside of the yarn guide needle (10), and two rotating parts (33) being rotatably connected inside the collecting box (31).
5. A double-belt drive for a warp knitting machine according to claim 4, characterized in that Multiple scrapers (34) are fixedly installed on the outer walls of the two rotating parts (33), and gears (35) are fixedly installed on the outer walls of one end of the two rotating parts (33). The two gears (35) mesh with each other, and multiple scraping parts (36) are fixedly installed inside the collection box (31).