Arrow loom warp tension control device
By introducing cleaning and transmission components into the rapier loom, the problem of uneven tension caused by impurities inside the yarn was solved, achieving uniform cleaning and stable transmission of the yarn, reducing yarn breakage rate, and improving fabric quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN SIQI NEW MATERIALS CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-06-02
AI Technical Summary
Existing arrow looms cannot effectively remove impurities from the yarn during the yarn control process, resulting in uneven tension of the yarn during tightening or loosening, making it prone to breakage.
A warp tension control device for a rapier loom, comprising a cleaning component and a transmission component, was designed. Impurities on the yarn surface are removed by pneumatic and physical cleaning methods, and yarn entanglement is prevented by finishing rollers and finishing claws. A polyurethane coating is used to increase frictional resistance and ensure tension uniformity.
It effectively removes impurities from the yarn surface, prevents uneven tension caused by impurities, reduces yarn breakage rate, and improves yarn uniformity and forming quality.
Smart Images

Figure CN224313798U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of arrow shaft loom technology, specifically to an arrow shaft loom warp tension control device. Background Technology
[0002] In the field of textile machinery, the rapier loom is a widely used piece of equipment in the production of woven fabrics. Its core function is to guide the weft yarn into the warp opening through the rapier to form the fabric. Compared with traditional shuttle looms, rapier looms have advantages such as high speed, low noise, and adaptability to the production of various fabrics, and are suitable for weaving various yarns such as cotton, wool, silk, and chemical fibers.
[0003] An existing patent (authorization announcement number: CN216836325U) discloses a novel fabric winding tension control device for a fiberglass loom. The key technical points of the solution are: by combining the pressure roller and the tension roller into one, the slippage phenomenon caused by insufficient pressure between the independent tension roller and the fabric surface is effectively avoided, thus solving the problem of fabric wrinkling; at the same time, the connection structure of the entire device is simpler and more compact, which not only saves space in the loom but also improves the sensor detection effect, enabling good tension control of the fabric winding tension.
[0004] However, the above technical solutions still have certain defects. In the process of controlling the yarn, it is impossible to ensure that there are other fibers and impurities entangled inside the yarn. This causes the yarn to get entangled on the debris during the tensioning or loosening process, resulting in uneven tension at various positions of the yarn and causing the yarn to break. Therefore, a warp tension control device for arrow looms is proposed. Utility Model Content
[0005] The purpose of this invention is to provide a warp tension control device for arrow looms to solve the problems in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A warp tension control device for a rapier loom includes a bracket, a textile assembly fixedly mounted on the bracket, an unwinding roller for unwinding the yarn, a cleaning assembly provided in the discharge direction of the textile assembly, an adjustment assembly provided at the bottom of the unwinding roller, and a transmission assembly fixedly mounted at the bottom of the adjustment assembly.
[0008] The cleaning assembly includes a load-bearing plate fixedly installed on one side of the base frame, an air pump fixedly installed on one side of the support plate, an air jet pipe connected to the air pump, and a cleaning plate fixedly installed on the side of the support plate away from the air pump.
[0009] The adjustment assembly consists of a second cylinder, a driven roller, and an adjustment plate; the adjustment plate is fixedly installed on one side of the load-bearing plate, the bottom of the second cylinder is fixedly connected to the top of the adjustment plate, and the output end of the second cylinder is fixedly connected to one end of the driven roller.
[0010] Based on the above technical solutions, this utility model also provides the following optional technical solutions:
[0011] As a further embodiment of this utility model: the textile assembly includes a support plate fixedly mounted on a bracket, a first cylinder fixedly mounted on the support plate, a driven shaft fixedly mounted on the output end of the first cylinder, one side of the driven shaft being fixedly connected to one side of the textile plate, and a rotating roller rotatably mounted on the bottom of the support plate.
[0012] As a further embodiment of this utility model: the transmission assembly includes a drive motor installed at the bottom of the support, a gear is fixedly installed at the output end of the drive motor, the gear is connected to a transmission belt, the transmission belt is also connected to a collecting roller, a winding roller, and a sorting roller, and each of the above rollers has a gear at its end, and the bottom of the support is also provided with a base plate.
[0013] As a further improvement of this utility model: the bottom of the cleaning plate is also provided with multiple sets of cleaning strips, which are arranged parallel to the direction of the silk thread movement, and the cleaning strips are made of nylon material.
[0014] As a further improvement of this utility model: multiple sets of sorting claws are fixedly arranged on the sorting roller, and the sorting claws are made of nylon material.
[0015] As a further improvement of this invention, the winding roller is coated with a polyurethane coating.
[0016] As a further improvement of this utility model, the bottom of the base plate is also provided with a shaft.
[0017] As a further improvement of this utility model: the jet pipe is provided with multiple sets of holes, and the axis of the holes is aligned with the center of the cleaning strip.
[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0019] 1. This utility model uses a cleaning component to clean the yarn in two ways: pneumatic and physical cleaning. The airflow can blow loose impurities away from the cleaning area in time to avoid secondary pollution. At the same time, the nylon strips of the cleaning plate further physically wipe the yarn to prevent impurities inside the yarn from causing uneven tension in different parts of the yarn when adjusting the yarn tension, which could lead to the yarn breaking when adjusting the tension.
[0020] 2. This utility model, by setting up a transmission component, drives the finishing roller to rotate through a drive motor. The finishing claws on the finishing roller physically separate adjacent warp yarns, avoiding yarn entanglement during high-speed operation. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the structure of the textile component of this utility model;
[0023] Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle;
[0024] Figure 4 This is a schematic diagram of the structure of the adjustment component of this utility model;
[0025] Figure 5 This is a schematic diagram of the transmission component of this utility model.
[0026] Figure reference numerals: 1. Support frame; 2. Textile assembly; 3. Cleaning assembly; 4. Unwinding roller; 5. Adjustment assembly; 6. Transmission assembly;
[0027] 21. Support plate; 22. First cylinder; 23. Driven shaft; 24. Textile board; 25. Rotating roller;
[0028] 31. Air pump; 32. Air jet nozzle; 33. Cleaning plate;
[0029] 51. Second cylinder; 52. Driven roller; 53. Adjusting plate;
[0030] 61. Drive motor; 62. Collecting roller; 63. Winding roller; 64. Finishing roller; 65. Base plate. Detailed Implementation
[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0032] In one embodiment, such as Figures 1-5 As shown, the warp tension control device for the arrow loom includes a bracket 1, a textile component 2 fixedly installed on the bracket 1, an unwinding roller 4 for unwinding the yarn, a cleaning component 3 provided in the output direction of the textile component 2, an adjustment component 5 provided at the bottom of the unwinding roller 4, a transmission component 6 fixedly installed at the bottom of the adjustment component 5, and a polyurethane coating on the winding roller 63.
[0033] In this embodiment, by setting the cleaning component 3 in the discharge direction of the textile component 2, the friction coefficient of the cleaned yarn is made uniform, reducing the sudden tension change caused by stains and improving the uniformity of the fabric. The tension of the cleaned yarn is adjusted by the adjustment component 5 to prevent impurities in the uncleaned yarn from causing uneven stress on the yarn during tension adjustment, which could lead to breakage at a certain point. The polyurethane coating of the winding roller 63 increases the friction resistance to prevent the yarn from slipping and protects the yarn surface.
[0034] In one embodiment, such as Figure 2 As shown, the textile assembly 2 includes a support plate 21 fixedly mounted on a bracket 1. A first cylinder 22 is fixedly mounted on the support plate 21, and a driven shaft 23 is fixedly mounted on the output end of the first cylinder 22. One side of the driven shaft 23 is fixedly connected to one side of the textile plate 24. A rotating roller 25 is also rotatably mounted on the bottom of the support plate 21. The first cylinder 22 can push the driven shaft 23 and the textile plate 24 to move up and down, dynamically adjusting the guide path of the warp yarns to adapt to different yarn tension requirements. The displacement of the textile plate 24 can be synchronized with the opening movement of the heald frame to ensure that the warp yarns are always in the optimal position during the weft insertion process, reducing yarn skipping or warp breakage caused by yarn slack. At the same time, the rotating roller 25 and the textile plate 24 together form an S-shaped yarn channel, allowing the warp yarns to stretch naturally during transmission and avoiding twisting or piling.
[0035] In one embodiment, such as Figure 3 As shown, the cleaning component 3 includes a load-bearing plate fixedly installed on one side of the base frame, an air pump 31 fixedly installed on one side of the support plate 21, an air jet pipe 32 connected to the air pump 31, and a cleaning plate 33 fixedly installed on the side of the support plate 21 away from the air pump 31. The air pump 31 blows airflow to remove dust and lint from the surface of the yarn, preventing impurities from entering the weaving point and causing the warp yarns to stick together. The nylon strips of the cleaning plate 33 further physically wipe the yarn, forming a dual cleaning mechanism of gaseous and solid states with the airflow cleaning, which significantly reduces the yarn breakage rate.
[0036] As a supplement: the bottom of the cleaning plate 33 is also provided with multiple sets of cleaning strips, which are arranged parallel to the direction of yarn movement. The cleaning strips are made of nylon material. The air jet pipe 32 is provided with multiple sets of holes, and the axis of the holes is aligned with the center of the cleaning strips. The parallel arrangement ensures that the contact area between the cleaning strips and the yarn is maximized. The airflow acts directly on the contact area of the cleaning strips, forming a dual cleaning mechanism of blowing and wiping. The airflow can blow loose impurities away from the cleaning area in time, avoiding secondary pollution.
[0037] In one embodiment, such as Figure 4As shown, the adjustment assembly 5 consists of a second cylinder 51, a driven roller 52, and an adjustment plate 53. The adjustment plate 53 is fixedly installed on one side of the load-bearing plate. The bottom of the second cylinder 51 is fixedly connected to the top of the adjustment plate 53, and the output end of the second cylinder 51 is fixedly connected to one end of the driven roller 52. The second cylinder 51 quickly pushes the driven roller 52 to move according to the tension feedback, changing the wrap angle or spacing between the unwinding roller 4 and the driven roller 52, and directly adjusting the warp tension. This is suitable for different yarn materials (such as high elasticity chemical fiber and low tension silk), avoiding frequent manual adjustments.
[0038] In one embodiment, such as Figure 5 As shown, the transmission assembly 6 includes a drive motor 61 mounted at the bottom of the bracket 1. A gear is fixedly mounted on the output end of the drive motor 61, and the gear is connected to a transmission belt. The transmission belt is also connected to a collecting roller 62, a winding roller 63, and a sorting roller 64. Each set of rollers has a gear at its end. The bottom of the bracket 1 also has a base plate 65, and a shaft is located at the bottom of the base plate 65. Multiple sets of sorting claws are fixedly mounted on the sorting roller 64, and the sorting claws are made of nylon material. The gear transmission ensures that the rotational speeds of all rollers are strictly matched. To avoid uneven warp tension caused by speed differences, such as the yarn breakage if the winding roller 63 moves too fast and the yarn slacks and piles up if it moves too slow, a single motor drives multiple rollers, simplifying the structure and reducing energy consumption. The finishing roller 64 is driven to rotate by the drive motor 61. The finishing claws on the finishing roller 64 physically separate adjacent warp yarns to prevent yarn entanglement during high-speed operation. The nylon material has moderate hardness, which effectively combs the yarn without scratching sensitive fibers. The base plate 65 acts as a rigid base to absorb the vibration of the loom, and the shaft further distributes the load to ensure the long-term stability of the transmission belt.
[0039] The above embodiments disclose a warp tension control device for a rapier loom. A cleaning component 3 is installed in the output direction of the textile assembly 2 to ensure a uniform coefficient of friction in the cleaned yarn, reducing sudden tension changes caused by dirt and improving fabric uniformity. The tension of the cleaned yarn is adjusted by an adjusting component 5 to prevent uneven tension and breakage caused by impurities in uncleaned yarn during tension adjustment. The polyurethane coating on the winding roller 63 increases frictional resistance, preventing yarn slippage and protecting the yarn surface, thus improving the overall quality of the formed yarn.
[0040] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A warp tension control device for arrow shaft loom, comprising a support (1), a spinning assembly (2) fixedly installed on the support (1), and a unwinding roller (4) for unwinding the silk thread, characterized in that, The textile component (2) is provided with a cleaning component (3) in the discharge direction, and the bottom of the unwinding roller (4) is provided with an adjustment component (5). The bottom of the adjustment component (5) is fixedly installed with a transmission component (6). The cleaning assembly (3) includes a load-bearing plate fixedly installed on one side of the base frame, an air pump (31) fixedly installed on one side of the support plate (21), an air jet pipe (32) connected to the air pump (31), and a cleaning plate (33) fixedly installed on the side of the support plate (21) away from the air pump (31). The adjustment assembly (5) consists of a second cylinder (51), a driven roller (52), and an adjustment plate (53); the adjustment plate (53) is fixedly installed on one side of the load-bearing plate, the bottom of the second cylinder (51) is fixedly connected to the top of the adjustment plate (53), and the output end of the second cylinder (51) is fixedly connected to one end of the driven roller (52).
2. The arrow shaft loom warp thread tension control device according to claim 1, characterized by, The textile assembly (2) includes a support plate (21) fixedly mounted on a bracket (1), a first cylinder (22) fixedly mounted on the support plate (21), a driven shaft (23) fixedly mounted on the output end of the first cylinder (22), one side of the driven shaft (23) being fixedly connected to one side of the textile plate (24), and a rotating roller (25) rotatably mounted on the bottom of the support plate (21).
3. The arrow shaft loom warp tension control device according to claim 1, characterized by, The transmission assembly (6) includes a drive motor (61) installed at the bottom of the bracket (1). A gear is fixedly installed at the output end of the drive motor (61). The gear is connected to a transmission belt. The transmission belt is also connected to a collecting roller (62), a winding roller (63), and a sorting roller (64). Each of the rollers is provided with a gear at its end. The bottom of the bracket (1) is also provided with a base plate (65).
4. The arrow shaft loom warp tension control device according to claim 1, characterized by, The bottom of the cleaning plate (33) is also provided with multiple sets of cleaning strips, which are arranged parallel to the direction of the silk thread movement. The cleaning strips are made of nylon material.
5. The arrow shaft loom warp tension control device according to claim 3, wherein, Multiple sets of sorting claws are fixedly arranged on the sorting roller (64), and the sorting claws are made of nylon material.
6. The arrow shaft loom warp tension control device according to claim 3, wherein, The winding roller (63) is coated with a polyurethane coating.
7. The arrow shaft loom warp tension control device according to claim 3, wherein, The bottom of the base plate (65) is also provided with a shaft.
8. The arrow shaft loom warp tension control device of claim 1, wherein, The jet pipe (32) is provided with multiple sets of holes, and the axis of the holes is aligned with the center of the cleaning strip.