False warp beam tension uniformizing mechanism of rapier loom
By introducing a water tank system and a cleaning mechanism into the rapier loom, the problem of temperature affecting the rotary damper was solved, achieving uniform tension of the false warp beam and stability of fabric quality, thus improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI ZHONGBO INTELLIGENT EQUIP MFG CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-05
AI Technical Summary
The damping effect of rotary dampers is easily affected by ambient temperature, leading to uneven tension on the pseudo-warp beam, which affects fabric quality and production efficiency.
A water tank system is used to apply resistance to the dummy warp roller. The rotation of the dummy warp roller is adjusted by the flow of water to simulate the unwinding behavior of the real warp beam, compensate for the tension fluctuations caused by changes in the diameter of the warp beam, and remove cotton lint from the surface of the warp yarn through a lint removal mechanism to ensure tension uniformity.
It achieves stable and uniform tension control of warp yarns by the dummy warp roller under different ambient temperatures, improving fabric quality and production efficiency, and adapting to the needs of warp yarns of different materials.
Smart Images
Figure CN224199582U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rapier loom technology, and in particular to a false warp beam tension uniformity mechanism for rapier looms. Background Technology
[0002] The rapier loom is a high-efficiency, multi-functional shuttleless loom that uses rigid or flexible rapier heads to clamp the weft yarn and complete the weft insertion action. Its characteristics include high adaptability, capable of weaving a variety of fabrics from lightweight silk to heavy denim, and it boasts advantages such as high speed and low noise.
[0003] In rapier looms, a false warp beam is an auxiliary tension adjustment device, usually located in the warp yarn path, used to optimize tension distribution. Most rapier looms on the market currently have rotary dampers installed at both ends of the false warp beam. By applying controllable resistance, it simulates the unwinding behavior of a real warp beam. This design can effectively compensate for tension fluctuations caused by changes in the warp beam diameter, ensuring uniform warp tension during weaving and reducing yarn breaks and fabric defects.
[0004] However, the damping effect of the rotary damper is easily affected by the ambient temperature. When the ambient temperature rises, the viscosity of the silicone oil or magnetic powder medium inside the damper decreases, resulting in a weakening of the resistance and an inability to maintain a stable torque output. This directly affects the control effect of the dummy warp beam on the warp tension, causing uneven tension and leading to quality problems such as fabric tension and weft skew. When the resistance of the rotary damper is greatly reduced, it may even be necessary to stop the machine for adjustment, which seriously affects production efficiency. To address this issue, a dummy warp beam tension equalization mechanism for rapier looms is proposed. Utility Model Content
[0005] To overcome the above deficiencies, this utility model provides a false warp beam tension uniformity mechanism for rapier looms, aiming to improve the problem mentioned in the prior art that "the rotary damper is easily affected by the ambient temperature, thus failing to ensure the uniformity of the false warp beam tension".
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a false warp beam tension equalization mechanism for a rapier loom, comprising a machine body, a false warp roller rotatably connected to the inner wall of the machine body, an adjustment mechanism provided at both the left and right ends of the machine body, and a dirt removal mechanism provided inside the machine body;
[0007] The adjusting mechanism includes a water tank, which is fixedly installed on the side wall of the machine body. A crossbar is slidably connected through the inner wall of the water tank. A push plate is fixedly installed at one end of the crossbar, and a connecting rod is hinged to the other end of the crossbar. Turntables are fixedly installed at both ends of the false warp roller. A filling pipe is fixedly installed at the top of the water tank, and a pipe plug is piston-connected to the inner wall of the filling pipe. A discharge pipe is fixedly installed at the bottom of the water tank, and a valve is provided on the discharge pipe.
[0008] As a further description of the above technical solution:
[0009] The impurity removal mechanism includes a guide roller, both ends of which are rotatably connected to a bent plate. Protective sleeves are fixedly installed on the outer walls of both the guide roller and the false warp roller. The bent plate is slidably connected to the inner wall of the machine body. A spring is fixedly installed on the outer wall of the bent plate. A rubber rod is fixedly installed on the side wall of the turntable. A steel ball is fixedly installed on the end of the rubber rod away from the turntable.
[0010] As a further description of the above technical solution:
[0011] The regulating mechanism also includes a partition plate, which is fixedly installed on the inner wall of the water tank, and the outer wall of the partition plate is provided with liquid level markings.
[0012] As a further description of the above technical solution:
[0013] The end of the connecting rod away from the crossbar is hinged to the outer wall of the turntable.
[0014] As a further description of the above technical solution:
[0015] The push plate is located inside the water tank, and both its upper and lower ends are in contact with the inner wall of the water tank.
[0016] As a further description of the above technical solution:
[0017] The end of the spring away from the bending plate is fixedly installed on the inner wall of the machine body.
[0018] As a further description of the above technical solution:
[0019] The bent plate has an "L" shaped structure.
[0020] As a further description of the above technical solution:
[0021] The outer wall of the steel ball is attached to the upper surface of the bending plate.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, the water inside the water tank can apply resistance to the dummy warp roller, thereby simulating the unwinding behavior of the real warp beam, compensating for the tension fluctuation caused by changes in the diameter of the warp beam, ensuring that the warp yarn maintains uniform tension during weaving, and the resistance effect of the water is not affected by the ambient temperature, so that the dummy warp roller can maintain a stable and uniform tension effect on the warp yarn. Moreover, by controlling the water content inside the water tank, the damping effect of the dummy warp roller can be adjusted so that the machine body can adapt to warp yarns of different materials, thus improving its practicality.
[0024] 2. In this utility model, the impurity removal mechanism can shake off the cotton lint on the surface of the warp yarn, preventing the cotton lint from accumulating on the protective sleeve, thereby ensuring that the dummy warp roller applies uniform pressure to the warp yarn and further improving the tension uniformity of the warp yarn. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0026] Figure 2 This is a schematic diagram of the overall structure of the dummy warp roller and guide roller of this utility model;
[0027] Figure 3 This is a cross-sectional structural diagram of the water tank of this utility model;
[0028] Figure 4 This utility model Figure 1 A magnified structural diagram at point A.
[0029] Legend:
[0030] 1. Machine body; 2. False warp roller; 3. Adjustment mechanism; 31. Water tank; 32. Crossbar; 33. Push plate; 34. Connecting rod; 35. Turntable; 36. Filling pipe; 37. Pipe plug; 38. Discharge pipe; 39. Valve; 310. Baffle plate; 311. Liquid level scale; 4. Impurity removal mechanism; 41. Guide roller; 42. Bending plate; 43. Spring; 44. Rubber rod; 45. Steel ball; 5. Protective sleeve. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] Reference Figures 1-3 One embodiment of this utility model is a false warp beam tension equalization mechanism for a rapier loom, comprising a machine body 1, a false warp roller 2 rotatably connected to the inner wall of the machine body 1, an adjustment mechanism 3 provided at both the left and right ends of the machine body 1, and a cleanup mechanism 4 provided inside the machine body 1.
[0033] Reference Figures 2-4The adjusting mechanism 3 includes a water tank 31, which is fixedly installed on the side wall of the machine body 1. The water stored inside the water tank 31 can create resistance to the rotation of the false warp roller 2. A crossbar 32 is slidably connected through the inner wall of the water tank 31. A push plate 33 is fixedly installed at one end of the crossbar 32. As the crossbar 32 slides back and forth on the inner wall of the water tank 31, it drives the push plate 33 to move back and forth inside the water tank 31. The push plate 33 is located inside the water tank 31. As the push plate 33 moves back and forth, the water stored inside the water tank 31 creates resistance to the reciprocating motion of the push plate 33. Both the upper and lower ends of the push plate 33 are in contact with the inner wall of the water tank 31. The other end of the crossbar 32 is hinged to a connecting rod. Both ends of the rod 34 and the false warp roller 2 are fixedly installed with turntables 35. The end of the connecting rod 34 away from the crossbar 32 is hinged to the outer wall of the turntable 35. The rotation of the turntable 35, in conjunction with the connecting rod 34, can drive the crossbar 32 to slide back and forth on the inner wall of the water tank 31. The top of the water tank 31 is fixedly installed with a filling pipe 36. The inner wall of the filling pipe 36 is connected to a pipe plug 37. When the pipe plug 37 is pulled out from the inside of the filling pipe 36, water can be injected into the water tank 31 through the filling pipe 36. The bottom of the water tank 31 is fixedly installed with a discharge pipe 38. A valve 39 is provided on the discharge pipe 38. By opening the discharge pipe 38 through the valve 39, the water inside the water tank 31 can be discharged outward.
[0034] Reference Figure 4 The regulating mechanism 3 also includes a partition 310, which is fixedly installed on the inner wall of the water tank 31. The partition 310 can be made of glass, transparent acrylic sheet or other transparent material. The liquid level inside the water tank 31 can be observed through the partition 310. The outer wall of the partition 310 is provided with a liquid level scale 311. The water content inside the water tank 31 can be known by using the liquid level scale 311, so that the staff can accurately control the amount of water inside the water tank 31.
[0035] Reference Figure 1 , Figure 2 and Figure 4The impurity removal mechanism 4 includes a guide roller 41. When the guide roller 41 guides the warp yarns, the slight vibration of the guide roller 41 can shake off the cotton lint on the surface of the warp yarns, preventing the cotton lint from accumulating on the surface of the protective sleeve 5 and affecting the uniformity of the dummy warp roller 2. Both ends of the guide roller 41 are rotatably connected to a curved plate 42. The curved plate 42 is L-shaped. Repeatedly striking the curved plate 42 with a steel ball 45 will cause the curved plate 42 to vibrate slightly, and the vibration can be transmitted to the guide roller 41 through the curved plate 42. The outer walls of both the guide roller 41 and the dummy warp roller 2 are fixedly installed with protective sleeves 5. The protective sleeves 5 can be made of polyurethane Or it may be made of other rubber materials. The curved plate 42 is slidably connected to the inner wall of the machine body 1. A spring 43 is fixedly installed on the outer wall of the curved plate 42. The end of the spring 43 away from the curved plate 42 is fixedly installed on the inner wall of the machine body 1. The elasticity of the spring 43 can make the curved plate 42 slide and return to its original position on the inner wall of the machine body 1. A rubber rod 44 is fixedly installed on the side wall of the turntable 35. A steel ball 45 is fixedly installed on the end of the rubber rod 44 away from the turntable 35. The outer wall of the steel ball 45 is attached to the upper surface of the curved plate 42. The rotation of the turntable 35, in conjunction with the rubber rod 44, can drive the steel ball 45 to repeatedly strike the top of the curved plate 42.
[0036] Working principle: When in use, the plug 37 is pulled out from the inside of the filling pipe 36. At this time, water can be injected into the water tank 31 through the filling pipe 36. At the same time, the water level line inside the water tank 31 can be observed through the partition 310. The water content inside the water tank 31 can be known by using the liquid level scale 311, so that the staff can accurately control the amount of water inside the water tank 31.
[0037] The textile thread is routed around the bottom of the guide roller 41, then around the top of the false warp roller 2, and guided into the machine body 1. During weaving, the guide roller 41 and the false warp roller 2 guide the textile thread smoothly into the machine body 1. During this process, the textile thread adheres to the protective sleeve 5, preventing direct contact between the textile thread and the guide roller 41 and the false warp roller 2, thus protecting the textile thread. As the machine body 1 weaves, the textile thread adheres to the surface of the protective sleeve 5 and gradually enters the machine body 1. Simultaneously, the friction of the protective sleeve 5 causes the textile thread to rotate on the side wall of the curved plate 42 as it enters the machine body 1, and also causes the false warp roller 2 to rotate on the inner wall of the machine body 1. The rotation of the false warp roller 2 simultaneously drives the turntable 35 to rotate synchronously. Simultaneously, the connecting rod 34 is pushed and pulled back and forth, causing the connecting rod 34 to push and pull the crossbar 32 back and forth. This causes the crossbar 32 to slide back and forth on the inner wall of the water tank 31. As the crossbar 32 slides back and forth, it drives the push plate 33 to move back and forth inside the water tank 31. During the back and forth movement of the push plate 33, the water stored inside the water tank 31 creates resistance to the back and forth movement of the push plate 33. This resistance affects the crossbar 32 during its back and forth sliding. At the same time, the connecting rod 34 is also affected by resistance during the back and forth pushing and pulling of the crossbar 32. This resistance affects the rotation of the turntable 35 during the rotation of the pushing and pulling of the connecting rod 34. This resistance affects the rotation of the dummy warp roller 2. By applying resistance to the dummy warp roller 2, the unwinding behavior of the real warp beam can be simulated, thereby compensating for the tension fluctuations caused by changes in the diameter of the warp beam and ensuring that the warp yarn maintains uniform tension during weaving.
[0038] When water is injected into the water tank 31 through the filling pipe 36, the liquid level inside the water tank 31 gradually rises. As the liquid level rises, the immersion area of the push plate 33 gradually increases. As the immersion area of the push plate 33 gradually increases, the resistance of the water flow to the push plate 33 also gradually increases. This can increase the tension of the false warp roller 2 on the warp yarn. By opening the discharge pipe 38 through the valve 39, the water inside the water tank 31 can be discharged outward. At this time, the liquid level inside the water tank 31 will gradually drop, which will cause the immersion area of the push plate 33 to gradually decrease. As the immersion area of the push plate 33 gradually decreases, the resistance of the water flow to the push plate 33 gradually decreases. This can reduce the tension of the false warp roller 2 on the warp yarn. By controlling the amount of water inside the water tank 31, the tension of the false warp roller 2 on the warp yarn can be precisely controlled so that the machine body 1 can adapt to warp yarns of different materials, thus improving its practicality.
[0039] As the turntable 35 rotates, it drives the rubber rod 44 to rotate synchronously. At this time, the rubber rod 44 drives the steel ball 45 to make a circular motion around the dummy warp roller 2. Simultaneously, the steel ball 45 repeatedly strikes the top of the curved plate 42. Under the elastic action of the spring 43, the curved plate 42 will produce slight vibration. The vibration can be transmitted to the guide roller 41 through the curved plate 42. When the guide roller 41 guides the warp yarn, the slight vibration of the guide roller 41 can shake off the cotton lint on the surface of the warp yarn, preventing the cotton lint from adhering to the protective sleeve 5 and affecting the uniformity of the dummy warp roller 2, thus making it impossible to uniformly control the tension effect on the warp yarn. This allows the dummy warp roller 2 to maintain a stable and uniform tension effect on the warp yarn.
[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A pseudo warp beam tension equalization mechanism for a rapier loom, comprising a machine body (1), characterized in that: The inner wall of the machine body (1) is rotatably connected to a false warp roller (2), and both the left and right ends of the machine body (1) are provided with adjustment mechanisms (3). The interior of the machine body (1) is provided with a cleaning mechanism (4). The adjusting mechanism (3) includes a water tank (31), which is fixedly installed on the side wall of the machine body (1). A crossbar (32) is slidably connected through the inner wall of the water tank (31). A push plate (33) is fixedly installed at one end of the crossbar (32), and a connecting rod (34) is hinged to the other end of the crossbar (32). Turntables (35) are fixedly installed at both ends of the false warp roller (2). A filling pipe (36) is fixedly installed at the top of the water tank (31), and a pipe plug (37) is piston-connected to the inner wall of the filling pipe (36). A discharge pipe (38) is fixedly installed at the bottom of the water tank (31), and a valve (39) is provided on the discharge pipe (38).
2. The pseudo warp beam tension equalization mechanism for a rapier loom according to claim 1, characterized in that: The impurity removal mechanism (4) includes a guide roller (41), both ends of which are rotatably connected to a bent plate (42). The outer walls of the guide roller (41) and the false warp roller (2) are both fixedly fitted with protective sleeves (5). The bent plate (42) is slidably connected to the inner wall of the machine body (1). The outer wall of the bent plate (42) is fixedly fitted with a spring (43). The side wall of the turntable (35) is fixedly fitted with a rubber rod (44). The end of the rubber rod (44) away from the turntable (35) is fixedly fitted with a steel ball (45).
3. The pseudo warp beam tension equalization mechanism for a rapier loom according to claim 1, characterized in that: The regulating mechanism (3) also includes a partition (310), which is fixedly installed on the inner wall of the water tank (31), and the outer wall of the partition (310) is provided with a liquid level scale (311).
4. The pseudo warp beam tension equalization mechanism for a rapier loom according to claim 1, characterized in that: The end of the connecting rod (34) away from the crossbar (32) is hinged to the outer wall of the turntable (35).
5. The pseudo warp beam tension equalization mechanism for a rapier loom according to claim 1, characterized in that: The push plate (33) is located inside the water tank (31), and both the upper and lower ends of the push plate (33) are in contact with the inner wall of the water tank (31).
6. The pseudo warp beam tension equalization mechanism for a rapier loom according to claim 2, characterized in that: The end of the spring (43) away from the bending plate (42) is fixedly installed on the inner wall of the body (1).
7. The pseudo warp beam tension equalization mechanism for a rapier loom according to claim 2, characterized in that: The bent plate (42) has an "L" shaped structure.
8. The pseudo warp beam tension equalization mechanism for a rapier loom according to claim 2, characterized in that: The outer wall of the steel ball (45) is attached to the upper surface of the bending plate (42).