A heald spacer and a shedding structure of a loom

Abstract

The application relates to a heald holder spacer and a loom wire distribution structure, and belongs to the technical field of looms.The heald holder spacer comprises a spacer main body, the spacer main body extends along a length direction, the spacer main body is made of a self-lubricating material and is provided with a plurality of accommodating grooves, the accommodating grooves are arranged at intervals along the length direction and all extend along a width direction, and a heald holder is arranged in the corresponding accommodating groove and can move along the width direction.The application is used to solve the problem that the internal environment is easily deteriorated when the current heald holder is lubricated by a sponge and lubricating oil during sliding in the spacer.

Description

Technical Field

[0001] This application relates to the field of loom technology, and in particular to a heald frame spacer and a loom yarn dividing structure. Background Technology

[0002] In the textile industry, with continuous technological advancements, the performance and production efficiency of looms have been significantly improved. As the core equipment in textile manufacturing, the stability and reliability of the loom's operation are crucial to product quality and production efficiency. The heald frame, as one of the key components of the loom, plays a vital role in controlling the up-and-down movement of the warp threads during the weaving process; its performance directly affects the quality of the fabric and the efficiency of weaving.

[0003] In the past, in the field of textile machinery, in order to ensure the normal operation and positioning of heald frames in the loom, metal spacers were usually used to separate and limit multiple heald frames. These spacers generally relied on mechanical structures to simply hold the heald frames in their respective positions. To reduce friction and extend service life, sponge grooves were usually set on the spacers and lubricating oil was injected to achieve lubrication.

[0004] However, the strong oil absorption capacity of sponges can lead to uneven oil distribution, easily causing localized over- or under-lubrication. Furthermore, over time, sponges age, harden, and may even detach, reducing lubrication effectiveness and potentially incurring additional maintenance costs. In addition, oil leakage is a significant problem, as it deteriorates the internal environment of the loom and increases cleaning difficulty. Utility Model Content

[0005] This application provides a heald frame spacer to solve the problem that the current heald frame slides in the spacer and is easily lubricated by sponge and lubricating oil, which can lead to insufficient lubrication and deterioration of the internal environment.

[0006] A heddle frame partition, comprising:

[0007] The partition body extends along the length direction. The partition body is made of a self-lubricating material and has multiple receiving grooves. The receiving grooves are spaced apart along the length direction and all extend along the width direction. The heddle frame is disposed in the corresponding receiving groove and can move along the width direction.

[0008] By adopting the above technical solutions, self-lubricating materials (such as filled polytetrafluoroethylene, graphite nylon, etc.) contain lubricant or have an extremely low coefficient of friction. When the heald frame reciprocates at high speed in the receiving groove, no additional lubricating oil is needed; the material itself can significantly reduce sliding friction, thereby reducing energy consumption and component wear. This allows the partition body and the heald frame frame in contact with it to maintain dimensional accuracy and structural integrity for a longer period, directly extending the service life of key components of the entire dividing mechanism.

[0009] In one embodiment, the spacer body is made of PTFE composite material; the receiving groove is provided with a rolling element, which is rotatably connected to the heald frame.

[0010] By employing the above technical solutions, pure PTFE can be transformed into composite materials (such as those filled with graphite, carbon fiber, or glass fiber). This significantly improves its hardness, compressive strength, and wear resistance while maintaining its extremely low coefficient of friction, making it highly suitable for withstanding the impacts and friction caused by the high-frequency reciprocating motion of the heald frame. The coefficient of rolling friction is much smaller than that of sliding friction. Transforming the "hard contact" sliding between the heald frame and the receiving groove into rolling via rolling elements (such as balls or needle rollers) reduces motion resistance, lowers the energy consumption of the drive system, and dramatically increases the lifespan of the spacers and heald frames. Simultaneously, it reduces the minute vibrations that may be caused by changes in friction, which is beneficial for improving fabric quality.

[0011] In one embodiment, the rolling element is a needle roller bearing, with both ends of the needle roller bearing located on both sides of the corresponding receiving groove along the length direction, and the needle roller bearing abutting against the heald frame.

[0012] By adopting the above technical solution, the needle rollers and raceways of the needle roller bearing make line contact, rather than point contact. This results in a larger contact area and a more uniform stress distribution, allowing it to withstand greater loads and impacts within a smaller radial space. This is highly advantageous for withstanding the enormous inertial forces generated by the high-speed movement of the heald frame. The needle roller bearing provides very stable and rigid support, precisely guiding the movement trajectory of the heald frame, preventing it from shifting or vibrating at high speeds, and ensuring clear and accurate opening.

[0013] In one embodiment, the rolling element is a ball bearing, which is partially embedded in the bottom surface of the receiving groove and partially exposed to abut against the heald frame.

[0014] By adopting the above technical solution, the ball bearing is a point contact bearing, and its starting friction and running friction torque are very small, making it particularly suitable for applications with extremely high speeds.

[0015] In one embodiment, the partition body is further provided with a damping block and an adjusting member. The damping block is disposed on the side wall of the receiving groove and can abut against the heald frame. The adjusting member is connected to the damping block and can adjust the length of the damping block protruding from the receiving groove.

[0016] By employing the above technical solution, the damping block is typically made of a viscoelastic material (such as a special rubber or polymer). This material can absorb and dissipate the vibrational energy (especially high-frequency micro-vibrations) generated by the movement of the heald frame. It can significantly suppress the vibration of the heald frame, resulting in more uniform warp tension and clearer openings; it also reduces mechanical noise caused by impacts and vibrations, improving the working environment.

[0017] A loom warp-dividing structure includes heald frame partitions, a housing, and heald frames. The housing has fixed plates on both sides along its width. Multiple heald frame partitions are respectively positioned on their corresponding fixed plates along their height. Multiple heald frames are positioned between two opposing fixed plates along their width and spaced apart along the length of the housing. A conveying roller is provided on one side of the housing along its length. The conveying roller can convey multiple layers of warp threads spaced apart along their height. The multiple warp threads sequentially pass through the heald frames and are respectively fixed to their corresponding heald frames. The housing also includes a lifting component, which is fixed to each heald frame and can move the heald frames within a receiving groove to achieve warp thread movement.

[0018] By adopting the above technical solution, multiple heald frame partitions on the fixed plate can simultaneously support multiple layers of heald frames. Combined with the layered warp feeding design of the conveyor rollers, synchronous weaving of multiple layers of warp threads can be achieved, significantly improving production efficiency. The lifting component can precisely adjust the warp opening height by driving the heald frames to move within the receiving groove, adapting to the needs of complex fabric structures.

[0019] In one embodiment, the heald frame consists of an upper beam, a lower beam, and two side frames. A through hole is provided between the upper beam, the lower beam, and the side frames. The heald frame also has heald rods and heald pieces. There are two heald rods, which are spaced apart along the height direction in the through hole. The two ends of the heald rods are fixed to the side frames. There are multiple heald pieces along the width direction and extending along the height direction. The two ends of the heald pieces are fixed to the heald rods. A threading hole is provided in the middle of the heald piece. Multiple warp threads are respectively threaded through the threading holes of the heald frame corresponding to them.

[0020] By adopting the above technical solution, the combined structure of the heald bar and heald plate evenly distributes and fixes the warp threads. The precise positioning design of the threading holes ensures consistent warp tension, avoiding misalignment or uneven tension during weaving. The heald plates are detachable and replaceable; when a warp thread breaks or a heald plate wears, it can be quickly repaired without disassembling the entire heald frame, improving equipment utilization.

[0021] In one embodiment, a first permanent magnet is provided in the receiving groove, and a second permanent magnet is provided in the frame. The first permanent magnet and the second permanent magnet are arranged opposite to each other and are mutually exclusive.

[0022] By employing the above technical solution, an invisible "magnetic pad" is formed between the heald frame and the spacer using magnetic repulsion, ensuring that the two do not make any physical contact during movement. This eliminates mechanical friction and wear at the source, theoretically enabling an unlimited mechanical lifespan.

[0023] In one embodiment, the frame further includes a bladder disposed within the frame, and a pump body is provided on the fixing plate. The pump body is connected to the bladder via a pipe and is capable of inflating the bladder to abut against the receiving groove.

[0024] By employing the above technical solution, the bladder can expand outward uniformly and flexibly under fluid (gas or liquid) pressure, perfectly filling mechanical play in all directions and achieving a 360-degree zero-gap fit. Simultaneously, the pressurized fluid itself acts as a highly efficient damper, absorbing and buffering impacts and high-frequency vibrations, with a more uniform and superior effect than solid damping blocks. The continuous preload generated by the bladder significantly enhances the rigidity of the moving parts and suppresses vibration. Furthermore, the system can achieve closed-loop control through pressure sensors and a pump, automatically increasing pressure to compensate when wear causes increased gaps, exhibiting intelligent and adaptive advantages.

[0025] In one embodiment, the capsule is further provided with an array of micron-sized pores, which are opposite to the receiving groove.

[0026] By employing the above technical solution, the stable airflow overflowing from the micropores forms a thin, rigid "air film" between the bladder and the receiving groove, completely levitizing the two solid surfaces and constituting an air-bearing bearing. In the air-bearing state, the frictional force mainly comes from the viscous resistance of the gas, which is extremely low. This results in unprecedented smoothness, responsiveness, and positioning accuracy in the movement of the heald frame.

[0027] In summary, this application includes at least one beneficial effect:

[0028] 1. Self-lubricating materials contain lubricant or have an extremely low coefficient of friction. When the heald frame reciprocates at high speed in the receiving groove, no additional lubricating oil is needed; the material itself significantly reduces sliding friction, thereby reducing energy consumption and component wear. This allows the partition body and the heald frame frame in contact with it to maintain dimensional accuracy and structural integrity for a longer period, directly extending the service life of key components of the entire dividing mechanism.

[0029] 2. Damping blocks are typically made of viscoelastic materials. These materials absorb and dissipate the vibrational energy generated by the movement of the heald frame, converting it into heat. This significantly suppresses heald frame vibration, resulting in more uniform warp tension and clearer openings; it also reduces mechanical noise caused by impacts and vibrations, improving the working environment.

[0030] 3. By utilizing the repulsive force of a magnetic field, an invisible "magnetic pad" is formed between the heald frame and the spacer, preventing any physical contact between the two during movement. This eliminates mechanical friction and wear at the source, theoretically enabling an unlimited mechanical lifespan. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of a heddle frame partition provided in an embodiment of this application;

[0032] Figure 2 This is a front view structural diagram of a heddle frame partition provided in an embodiment of this application;

[0033] Figures 3(a) and 3(b) are Figure 2 A magnified view of part A in the middle;

[0034] Figure 4 This is a three-dimensional structural diagram of a loom yarn-separating structure provided in an embodiment of this application;

[0035] Figure 5 This is a schematic diagram of a structure with a pump body on a fixed plate provided in the second embodiment of this application.

[0036] Explanation of reference numerals in the attached drawings: 1. Partition body; 11. Receiving groove; 111. Rolling element; 12. Damping block; 13. Adjusting element; 131. Bolt; 132. Nut; 14. Moving groove; 2. Heald frame; 21. Upper beam; 22. Lower beam; 23. Frame; 24. Through hole; 25. Heald rod; 26. Heald plate; 3. Box body; 31. Fixing plate; 311. Pump body; 32. Conveying roller; 33. Lifting element. Detailed Implementation

[0037] The following is in conjunction with the appendix Figure 1-5 The helium frame spacer provided in this application will be described in further detail.

[0038] Example 1

[0039] Please see Figure 1-5 The frame partition provided in this application embodiment includes a partition body 1.

[0040] like Figure 1 As shown, the partition body 1 extends along the length direction. The partition body 1 is made of self-lubricating material and has multiple receiving grooves 11 spaced apart along the length direction. The receiving grooves 11 all extend along the width direction. The heald frame 2 is located in the corresponding receiving groove 11 and can move along the width direction. This design can effectively reduce friction when the heald frame 2 slides in the receiving groove 11, ensuring the smooth operation of the loom.

[0041] Specifically, the self-lubricating material can be polytetrafluoroethylene (PTFE) composite material. PTFE material itself has an extremely low coefficient of friction and self-lubricating properties. Composite materials made by adding fillers (such as graphite, molybdenum disulfide, carbon fiber, etc.) are usually designed to further enhance its wear resistance while maintaining or optimizing its self-lubricating properties. Of course, in addition to PTFE composite materials, other engineering plastics with self-lubricating properties can also be used, such as polyoxymethylene, ultra-high molecular weight polyethylene, nylon, polyetheretherketone, polyimide, etc. These materials can also meet the self-lubricating requirements of the separator body 1. The separator body 1 is provided with multiple receiving grooves 11. These receiving grooves 11 provide space for the movement of the heald frame 2; at the same time, the receiving grooves 11 can restrict the heald frame 2 and prevent it from tilting. The shape of the receiving grooves 11 is generally rectangular, and its size is designed to fit the specifications of the heald frame 2. The inner wall of the receiving groove 11 needs to ensure a certain smoothness to facilitate the smooth movement of the heald frame 2.

[0042] like Figure 2 As shown in Figures 3(a) and 3(b), a rolling element 111 can be provided in the receiving groove 11, and the rolling element 111 is tumblingly connected to the heald frame 2. Specifically, the rolling element 111 can be a needle roller bearing, with both ends of the needle roller bearing located on both sides of the corresponding receiving groove 11 along the length direction. Multiple needle roller bearings are spaced apart along the width direction of the spacer body 1 and can abut against the heald frame 2. The needle roller bearing has high load-bearing capacity and small volume, and can adapt well to the space of the receiving groove 11. Its working principle is that when the heald frame 2 moves in the receiving groove 11, the needle roller bearing rolls accordingly, changing the original sliding friction into rolling friction, thereby further reducing the coefficient of friction and reducing wear. Alternatively, the rolling element 111 can also be a ball bearing, with part of the ball bearing embedded in the bottom surface of the receiving groove 11 and part of it exposed to abut against the heald frame 2. The characteristic of ball bearings is flexible rolling, which can achieve rolling with small resistance, and can also effectively reduce the friction between the heald frame 2 and the receiving groove 11.

[0043] The partition body 1 may also be provided with a damping block 12 and an adjusting member 13. The damping block 12 protrudes from the side wall of the receiving groove 11 and abuts against the heald frame 2. The adjusting member 13 is connected to the damping block 12. The damping block 12 is usually made of a viscoelastic material, such as rubber. In this embodiment, the partition body 1 is also provided with an adjusting groove and a moving groove 14. The adjusting groove is connected to the receiving groove 11, and the moving groove 14 is connected to the adjusting groove and extends along the length direction. The damping block 12 is located in the adjusting groove and can protrude from the receiving groove 11. The adjusting member 13 includes a bolt 131 and a nut 132. The bolt 131 passes through the moving groove 14 and enters the adjusting groove to be fixed to the damping block 12. The nut 132 is fitted onto the bolt 131 and fixed to the partition body 1. By loosening the nut 132, the bolt 131 is controlled to move in the moving groove 14, thereby changing the length of the damping block 12 protruding in the receiving groove 11. This not only eliminates the potential gap between the heald frame 2 and the receiving groove 11, but more importantly, by utilizing the properties of viscoelastic materials, it can absorb the minute vibrations generated by the heald frame 2 during high-speed reciprocating motion, making the operation smoother, reducing noise, and reducing the damage to the machine parts caused by impact.

[0044] like Figure 4 As shown in the illustration, this application also provides a loom warp separation structure, including a housing 3, a heald frame 2, and heald frame spacers. The housing 3 provides a supporting and protective frame. The heald frame spacers and the heald frame 2 work together within the housing 3 to complete the layering and weaving of the warp threads. The housing 3 has fixing plates 31 on both sides along its width direction, and multiple heald frame spacers are respectively positioned on their corresponding fixing plates 31 along their height direction. In this case, the width direction of the spacer body 1 is the height direction of the housing 3, and the length direction of the spacer body 1 is the length direction of the housing 3. Multiple heald frames 2 are positioned between two opposing fixed plates 31 along the width of the housing 3 and spaced apart along the length of the housing 3. A conveying roller 32 is located on one side of the housing 3 along its length. The conveying roller 32 conveys multiple layers of warp threads spaced apart along its height. The warp threads pass through multiple heald frames 2 and are fixed to their corresponding frames. A lifting component 33 is also provided inside the housing 3. The lifting component 33 is fixed to each of the heald frames 2 and can move the heald frames 2 within the receiving groove 11, thereby moving the warp threads. The lifting component 33 can be a cylinder, electric push rod, etc. Through the action of the lifting component 33, the heald frames 2 can reciprocate up and down, completing the opening action of the warp threads. The conveying roller 32 is used to convey the warp threads, and its surface is usually covered with materials such as rubber to increase friction with the warp threads and ensure the stability of the warp thread conveying. The fixed plates 31 serve to support and fix the heald frame partitions. The fixed plates 31 are generally made of metal, such as aluminum alloy, which has high strength and stability. More heald frame spacers are screwed to the fixing plate 31, enabling the heald frame 2 to operate in a stable environment.

[0045] Specifically, the heald frame 2 consists of an upper beam 21, a lower beam 22, and a side frame 23, with a through hole 24 surrounding the three. In this embodiment, the heald frame 2 also includes heald rods 25 and heald pieces 26. There are two heald rods 25, which are spaced apart along the height direction in the through hole 24. The two ends of the heald rods 25 are fixed to the side frame 23. There are multiple heald pieces 26 spaced apart along the width direction and extending along the height direction. The two ends of the heald pieces 26 are fixed to the heald rods 25. A threading hole is provided in the middle of the heald piece 26. Each layer of warp threads is threaded through the threading hole of its corresponding heald frame 2 to facilitate the layering of warp threads. At the same time, the heald frame 2 can move up and down with the warp threads.

[0046] The implementation principle of this embodiment is as follows: By using a self-lubricating material to make the heald frame spacer body 1, the friction between the heald frame 2 and the spacer is reduced, thus extending the service life. The rolling element 111 installed in the receiving groove 11 further reduces the coefficient of friction. In addition, the damping block 12 and the adjusting element 13 effectively suppress the vibration of the heald frame 2. Compared with the prior art, this improves the stability and reliability of the heald frame 2's operation and reduces maintenance costs.

[0047] Example 2

[0048] like Figure 5 As shown, the difference between this embodiment and the above embodiments lies in that: the frame 2 may include a bladder, which is disposed within the frame 23. A pump body 311 is provided on the fixing plate 31. The pump body 311 is connected to the bladder through a pipe, enabling the bladder to expand and abut against the receiving groove 11. The pump body 311 can be a miniature air pump or liquid pump. When the pump body 311 is activated, a small amount of compressed air or liquid is injected into the bladder, causing it to expand slightly. This expansion pushes the bladder outward from the inside, achieving a perfect zero-gap fit with the inner wall of the receiving groove 11 of the septum. This not only eliminates mechanical play in all directions but also provides a preload force, greatly suppressing high-frequency vibration and impact.

[0049] The capsule is also equipped with an array of micron-sized pores, which are opposite to the receiving groove 11. When the capsule expands and comes into contact with the receiving groove 11, a small amount of gas overflows through the surface of the pores, forming an extremely thin "air film bearing" between the contact surface with the receiving groove 11, thereby reducing the dynamic friction coefficient and achieving a smooth motion with almost no contact.

[0050] The implementation principle of this embodiment is as follows: the cooperation between the bladder and the pump body 311 eliminates mechanical play and suppresses high-frequency vibration and impact. The "air film bearing" formed by micron-level pores further reduces the coefficient of friction and improves operating efficiency and stability.

[0051] Example 3

[0052] The difference between this embodiment and the previous embodiment is that a first permanent magnet is provided inside the receiving groove 11, and a second permanent magnet is provided inside the frame 23. The first and second permanent magnets repel each other. The first and second permanent magnets are usually made of rare earth permanent magnet materials, such as neodymium iron boron, which have strong magnetism. This relative repulsive magnetic force can keep the heald frame 2 in a certain suspended state inside the receiving groove 11, reducing the area of ​​direct contact between the heald frame 2 and the receiving groove 11, thereby reducing friction and wear. In this embodiment, the first permanent magnet extends along the height direction of the housing 3 inside the receiving groove 11, and the second permanent magnet also extends along the height direction of the housing 3 inside the frame 23, so that there is always a gap between the heald frame 2 and the receiving groove 11 when it moves. In addition, the side wall of the receiving groove 11 can also be provided with the first permanent magnet, so the movement resistance is only the air resistance, the energy consumption is extremely low, and it is especially suitable for ultra-high speed operation.

[0053] The implementation principle of this embodiment is as follows: non-contact support is achieved through the repulsive effect of permanent magnets, which fundamentally eliminates physical wear, extends the life of components, and realizes clean production.

[0054] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A heddle frame partition, characterized in that, include: The partition body (1) extends along the length direction. The partition body (1) is made of self-lubricating material and has multiple receiving grooves (11). The receiving grooves (11) are spaced apart along the length direction and all extend along the width direction. The frame (2) is located in the corresponding receiving groove (11) and can move along the width direction.

2. The heddle frame partition according to claim 1, characterized in that, The partition body (1) is made of PTFE composite material; the receiving groove (11) is provided with a rolling element (111), and the rolling element (111) is tumbling connected to the heald frame (2).

3. A hemmed frame partition according to claim 2, characterized in that, The rolling element (111) is a needle roller bearing, with both ends of the needle roller bearing located on both sides of the corresponding receiving groove (11) along the length direction, and the needle roller bearing abutting against the heald frame (2).

4. A hemmed frame partition according to claim 2, characterized in that, The rolling element (111) is a ball bearing, which is partially embedded in the bottom surface of the receiving groove (11) and partially exposed so as to abut against the heald frame (2).

5. A hemmed frame partition according to claim 2, characterized in that, The partition body (1) is also provided with a damping block (12) and an adjusting member (13). The damping block (12) is located on the side wall of the receiving groove (11) and can abut against the heald frame (2). The adjusting member (13) is connected to the damping block (12) and can adjust the length of the damping block (12) protruding from the receiving groove (11).

6. A weaving machine yarn-separating structure, comprising the heald frame spacer as described in claim 1, characterized in that, It also includes a box body (3) and a heald frame (2). The box body (3) has fixed plates (31) on both sides along the width direction. Multiple heald frame partitions are respectively set on the fixed plates (31) corresponding to them along the height direction. Multiple heald frames (2) are set between two opposite fixed plates (31) along the width direction and are arranged at intervals along the length direction of the box body (3). A conveying roller (32) is provided on one side of the box body (3) along the length direction. The conveying roller (32) can convey multiple layers of warp threads arranged at intervals along the height direction along the length direction. The multiple layers of warp threads pass through the heald frames (2) in sequence and are respectively fixed to the heald frames (2) corresponding to them. The box body (3) is also provided with a lifting component (33). The lifting component (33) is fixed to the heald frames (2) one by one and can move the heald frames (2) in the receiving groove (11) to realize the movement of the warp threads.

7. A loom yarn-separating structure according to claim 6, characterized in that, The heald frame (2) consists of an upper beam (21), a lower beam (22), and two side frames (23). A through hole (24) is provided between the upper beam (21), the lower beam (22), and the side frames (23). The heald frame (2) is also provided with a heald rod (25) and a heald piece (26). There are two heald rods (25) and they are spaced apart along the height direction in the through hole (24). The two ends of the heald rods (25) are fixed to the side frames (23). There are multiple heald pieces (26) along the width direction and they extend along the height direction. The two ends of the heald pieces (26) are fixed to the heald rods (25). A threading hole is provided in the middle of the heald piece (26). Multiple warp threads are respectively threaded through the threading holes of the heald frame (2).

8. A loom yarn-separating structure according to claim 7, characterized in that, The receiving groove (11) is provided with a first permanent magnet, and the frame (23) is provided with a second permanent magnet. The first permanent magnet and the second permanent magnet are arranged opposite to each other and are mutually exclusive.

9. A loom yarn-separating structure according to claim 7, characterized in that, The frame (2) also includes a bladder, which is located inside the frame (23). A pump (311) is provided on the fixing plate (31). The pump (311) is connected to the bladder through a pipe and can expand the bladder to abut against the receiving groove (11).

10. A loom yarn-separating structure according to claim 9, characterized in that, The capsule is also provided with an array of micron-sized pores, which are opposite to the receiving groove (11).

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