A support structure for a large high-speed rapier loom

By introducing rubber feet, guide components, and cleaning rollers into the support structure of the rapier loom, combined with motor drive, the problems of vibration and weft yarn deviation during high-speed operation were solved, achieving a stable weaving process and high-quality fabric.

CN224430869UActive Publication Date: 2026-06-30HUNAN JIAHAI ELEVATOR EQUIP MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUNAN JIAHAI ELEVATOR EQUIP MFG CO LTD
Filing Date
2025-08-27
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Traditional rapier looms experience significant vibration and impact when operating at high speeds, which can easily loosen transmission components, affecting weaving accuracy. Furthermore, they cannot dynamically adjust the weaving path, leading to weft yarn misalignment or uneven tension, thus impacting fabric quality.

Method used

By using rubber feet at the bottom of the support frame, a fixed guide plate in the guide assembly, and a cleaning roller in the winding assembly, combined with a motor drive and transmission system, a stable guide channel and multi-stage transmission structure are formed to suppress vibration and maintain the weft yarn path, thus cleaning the fabric surface.

Benefits of technology

It effectively reduces loom vibration, prevents transmission components from loosening, ensures precise weft yarn routing, keeps the fabric surface clean, and improves weaving accuracy and quality.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224430869U_ABST
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Abstract

This utility model discloses a support structure for a large high-speed rapier loom, relating to the field of rapier loom technology. It includes a support frame, a controller for controlling electrical equipment located on the side of the support frame, an unwinding assembly for releasing the yarn spool mounted on the support frame, a guide assembly for guiding the loom direction located in the middle of the support frame, and a winding assembly for winding the fabric located on the side of the support frame away from the unwinding assembly. Rubber feet are provided at the bottom of the support frame. This utility model, by setting up a support frame and rubber feet at the bottom of the support frame, reduces the impact of rapier loom vibration on the ground. The viscoelastic properties of rubber can suppress high-frequency resonance and prevent vibration from being transmitted to the ground and causing secondary vibration. Simultaneously, an adjustable-gap guide channel is formed by a fixed guide plate in the guide assembly, ensuring that the weft yarn maintains a predetermined path during weft insertion.
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Description

Technical Field

[0001] This utility model relates to the field of rapier loom technology, specifically a support structure for a large high-speed rapier loom. Background Technology

[0002] Currently, rapier looms, as highly efficient shuttleless weaving equipment, are widely used in the textile industry. The support structure of traditional rapier looms mainly adopts a rigid frame and a simple transmission system.

[0003] An existing patent (authorization announcement number: CN216688531U) discloses a high-speed rapier loom. The key technical points of the solution are: by setting up a frame, a warp feeding device, a weft beating device, and a fabric winding device, the yarn is woven. By using the air force provided by a fan, cotton lint and thread ends inside the frame can be sucked into the suction hood. The cotton lint and thread ends pass through the suction hood and plastic hose to reach the collection box, thus cleaning the cotton lint and thread ends inside the frame, improving the production quality of the product, reducing the occurrence of mechanical failures caused by cotton lint and thread ends, and reducing the waste of manpower and material resources. By using the power provided by a rotating motor to drive the ball screw to rotate, the wiping plate moves left and right inside the frame, achieving the purpose of cleaning the cotton lint and thread ends inside the frame and ensuring the cleanliness of the inside of the frame.

[0004] However, the above technical solutions still have certain defects. When running at high speed, the vibration and impact of the loom are large. Traditional support structures lack effective shock absorption design, which can easily lead to frame deformation or loosening of transmission components, affecting weaving accuracy. Furthermore, during the weaving process, the weaving path cannot be dynamically adjusted, which can easily cause weft yarn deviation or uneven tension during high-speed weaving, affecting the fabric quality. Therefore, a support structure for large high-speed rapier looms is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a support structure for a large-scale high-speed rapier loom to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A support structure for a large high-speed rapier loom includes a support frame, a controller for controlling electrical equipment is provided on the side of the support frame, an unwinding assembly for unwinding the yarn spool is installed on the support frame, a guide assembly for guiding the direction of the loom is provided in the middle of the support frame, and a winding assembly for winding the fabric is provided on the side of the support frame away from the unwinding assembly.

[0008] The bottom of the support frame is equipped with rubber feet.

[0009] The guide assembly includes a mounting frame fixedly installed on the top of the support frame. A second electric push rod is provided on one side of the mounting frame, and the second electric push rod drives a knitting board. A guide plate is fixedly installed on the mounting frame, and the guide plate is in close contact with the knitting board. A set of driving cylinders is provided on each side of the bottom of the mounting frame, and a knitting head is fixedly provided on the output head of the driving cylinder.

[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 unwinding assembly includes a first motor fixedly mounted on the support frame near the controller side, the first motor driving a first transmission roller, a first electric push rod mounted on the top of the first motor on the support frame, the first electric push rod driving a second transmission roller, a fixed frame also mounted on the support frame near the controller side, a fixed rod rotatably mounted on the fixed frame, a limit plate slidably mounted on the fixed rod, and the limit plate being used to adjust the longitudinal position of the knitting board on the mounting frame.

[0012] As a further embodiment of this utility model: the winding assembly includes a second motor installed on the non-controller side of the support frame, the output shaft of the second motor is connected to the first gear, and the second gear, the third gear and the fourth gear are sequentially meshed and driven by the same closed-loop belt.

[0013] As a further improvement of this utility model: both the second gear and the third gear are provided with a take-up roller on their sides, and the fourth gear is provided with a cleaning roller on its side.

[0014] As a further improvement of this utility model: the support frame is longer in the middle and shorter on both sides, and the support frame is composed of at least four sets of cross-links hinged together to form a triangular stable unit.

[0015] As a further improvement of this utility model, a bearing plate is provided on the side of the support frame near the winding assembly.

[0016] As a further improvement of this utility model, the controller is provided with a touch-sensitive control panel.

[0017] As a further improvement of this invention: the cleaning roller is made of nylon material and is coated with an adhesive material.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1. This utility model reduces the impact of vibration of the rapier loom on the ground by setting a support frame with rubber feet at the bottom of the support frame. The viscoelastic properties of rubber can suppress high-frequency resonance and prevent vibration from being transmitted to the ground and causing secondary vibration. At the same time, an adjustable gap guide channel is formed by the fixed guide plate in the guide assembly. During the rapier weft insertion process, this channel ensures that the weft yarn maintains the predetermined track.

[0020] 2. This utility model sets up a winding assembly, uses a second motor as the drive source, and its output shaft is directly connected to the first gear to provide initial power. The closed-loop belt (such as a synchronous belt) simultaneously meshes with the second, third and fourth gears. The cleaning roller rotates synchronously with the fourth gear, contacts the fabric surface, and adheres impurities such as yarn dust and lint, keeping the fabric surface clean. 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 unwinding assembly of this utility model;

[0023] Figure 3 This is a side view of the support frame of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the guide component of this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the winding assembly of this utility model.

[0026] Figure label annotations: 1. Support frame; 2. Unwinding assembly; 3. Guide assembly; 4. Rewinding assembly; 5. Controller; 6. Foot pad;

[0027] 21. First motor; 22. First transmission roller; 23. First electric push rod; 24. Second transmission roller; 25. Fixing frame; 26. Fixing rod; 27. Limiting plate;

[0028] 31. Mounting bracket; 32. Second electric push rod; 33. Guide plate; 34. Knitting board; 35. Drive cylinder;

[0029] 41. Second motor; 42. First gear; 43. Second gear; 44. Third gear; 45. Fourth gear. Detailed Implementation

[0030] 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.

[0031] In one embodiment, such as Figures 1-5As shown, a support structure for a large high-speed rapier loom includes a support frame 1. A controller 5 for controlling electrical equipment is provided on the side of the support frame 1. A touch-screen control panel is provided on the controller 5. An unwinding assembly 2 for unwinding the yarn spool is installed on the support frame 1. A guide assembly 3 for guiding the direction of the loom is provided in the middle of the support frame 1. A winding assembly 4 for winding the fabric is provided on the side of the support frame 1 away from the unwinding assembly 2.

[0032] In this embodiment, the support frame 1 serves as the main frame and is made of high-strength materials (such as steel structure or aluminum alloy) to ensure overall rigidity and reduce vibration deformation during high-speed operation. The controller 5 is integrated on the side and is responsible for coordinating the electrical control of components such as unwinding, guiding, and winding to achieve automated operation. The unwinding component 2 releases the yarn (warp or weft) at a uniform speed and maintains stable tension. The guiding component 3 precisely guides the weaving path to avoid weft yarn deviation or uneven tension. At the same time, the winding component 4 efficiently winds up the finished fabric and cleans surface impurities.

[0033] In one embodiment, such as Figure 2 As shown, the unwinding assembly 2 includes a first motor 21 fixedly mounted on the support frame 1 near the controller 5. The first motor 21 drives a first transmission roller 22. A first electric push rod 23 is mounted on the top of the first motor 21 on the support frame 1. The first electric push rod 23 drives a second transmission roller 24. A fixed frame 25 is also mounted on the support frame 1 near the controller 5. A fixed rod 26 is rotatably mounted on the fixed frame 25. A limit plate 27 is slidably mounted on the fixed rod 26. The limit plate 27 is used to adjust the longitudinal position of the knitting board 34 on the mounting frame 31. The first motor 21 serves as the main power source, directly... The first drive roller 22 is driven to rotate, providing basic traction for unwinding the yarn. At the same time, the first electric push rod 23 acts as an adjustment mechanism, changing the clamping pressure between the two drive rollers by driving the second drive roller 24 to move up and down. The fixed rod 26 on the fixed frame 25 forms the basic framework of the yarn channel. The sliding limit plate 27 can be adjusted laterally along the fixed rod 26 to precisely control the yarn path. By adjusting its position on the fixed rod 26, the limit plate 27 indirectly controls the longitudinal position of the knitting board 34 on the mounting frame 31. The dual drive roller design forms an adjustable pressure zone, and the clamping force is adjusted in real time by the electric push rod to ensure stable yarn tension.

[0034] In one embodiment, such as Figure 4As shown, the guide assembly 3 includes a mounting frame 31 fixedly installed on the top of the support frame 1. A second electric push rod 32 is provided on one side of the mounting frame 31, and the second electric push rod 32 drives the knitting board 34. A guide plate 33 is fixedly installed on the mounting frame 31, and the guide plate 33 is in close contact with the knitting board 34. A set of driving cylinders 35 is provided on each side of the bottom of the mounting frame 31, and a knitting head is fixedly provided at the output head of the driving cylinder 35. The second electric push rod 32 acts as a linear drive mechanism to control the longitudinal displacement of the knitting board 34. The knitting board 34 and the fixed guide plate 33 form an adjustable gap guide channel. During the rapier weft insertion process, this channel ensures that the weft yarn maintains the predetermined yarn path. The two sets of driving cylinders 35 are symmetrically arranged and drive the knitting head synchronously through the piston rod. The knitting head performs up and down reciprocating motion to ensure weft yarn handover. The electric push rod adjusts the position of the knitting board 34 in real time according to the fabric width. At the same time, the contact surface between the guide plate 33 and the knitting board 34 is coated with a wear-resistant ceramic coating to extend the service life.

[0035] In one embodiment, such as Figure 5 As shown, the winding assembly 4 includes a second motor 41 installed on the non-controller 5 side of the support frame 1. The output shaft of the second motor 41 is connected to the first gear 42, and the second gear 43, the third gear 44, and the fourth gear 45 are sequentially meshed and driven by the same closed-loop belt. The second gear 43 and the third gear 44 are each provided with a winding roller on their side, and the fourth gear 45 is provided with a cleaning roller on its side. The cleaning roller is made of nylon material and coated with an adhesive material. The second motor 41 serves as the drive source, and its output shaft is directly connected to the first gear 42 to provide initial power. The closed-loop belt (such as a synchronous belt) simultaneously meshes with the second gear 43, the third gear 44, and the fourth gear 45 to form a compact multi-stage transmission structure. The second gear 43 and the third gear 44 are each connected to a winding roller on their side for synchronously winding up the fabric to ensure uniform fabric tension. At the same time, the cleaning roller rotates synchronously with the gears, contacts the fabric surface, and adheres to impurities such as yarn lint and hair to keep the fabric surface clean.

[0036] In one embodiment, such as Figure 3As shown, the bottom of the support frame 1 is provided with rubber foot pads 6. The support frame 1 is longer in the middle and shorter on both sides, and is composed of at least four sets of cross-links hinged together to form a triangular stable unit. A bearing plate is provided on the side of the support frame 1 near the winding assembly 4. The rubber foot pads 6 at the bottom of the support frame 1 are used to reduce the impact of vibration of the rapier loom on the ground. The viscoelastic properties of rubber can suppress high-frequency resonance and prevent vibration from being transmitted to the ground and causing secondary vibration. The layout of being longer in the middle and shorter on both sides makes the center of gravity of the support frame 1 biased towards the working area of ​​the loom, enhancing the rigidity of the main stress area. The four or more sets of cross-links hinged together form multiple triangular units to form a stable support. At the same time, in the horizontal direction, it suppresses the lateral impact force when the loom inserts weft.

[0037] The above embodiments disclose a support structure for a large high-speed rapier loom. In this structure, an unwinding assembly 2 is provided, and a first motor 21 is used as the main power source to directly drive the first transmission roller 22 to rotate, providing basic traction force for yarn unwinding. At the same time, a first electric push rod 23 serves as an adjustment mechanism, driving the second transmission roller 24 to move up and down, thereby changing the clamping pressure between the two transmission rollers. Simultaneously, a guide assembly 3 controls the longitudinal displacement of the knitting board 34, and the knitting board 34 and the fixed guide plate 33 form an adjustable gap guide channel. Meanwhile, a second motor 41 in the take-up assembly 4 serves as the drive source, and its output shaft is directly connected to the first gear 42 to provide initial power for synchronously taking up the fabric.

[0038] 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 support structure for a large high-speed rapier loom, comprising a support frame (1), wherein a controller (5) for controlling electrical equipment is provided on the side of the support frame (1), characterized in that, The support frame (1) is equipped with an unwinding assembly (2) for unwinding the yarn spool. A guide assembly (3) for guiding the direction of the loom is provided in the middle of the support frame (1). A winding assembly (4) for winding the fabric is provided on the side of the support frame (1) away from the unwinding assembly (2). The bottom of the support frame (1) is provided with rubber foot pads (6); The guide assembly (3) includes a mounting frame (31) fixedly installed on the top of the support frame (1). A second electric push rod (32) is provided on one side of the mounting frame (31). The second electric push rod (32) drives a knitting board (34). A guide plate (33) is fixedly installed on the mounting frame (31). The guide plate (33) is in close contact with the knitting board (34). A set of driving cylinders (35) is provided on each side of the bottom of the mounting frame (31). A knitting head is fixedly provided on the output head of the driving cylinder (35).

2. The support structure for a large high-speed rapier loom according to claim 1, characterized in that, The unwinding assembly (2) includes a first motor (21) fixedly mounted on the support frame (1) near the controller (5). The first motor (21) drives a first transmission roller (22). A first electric push rod (23) is provided on the top of the first motor (21) on the support frame (1). The first electric push rod (23) drives a second transmission roller (24). A fixed frame (25) is also provided on the side of the support frame (1) near the controller (5). A fixed rod (26) is rotatably mounted on the fixed frame (25). A limit plate (27) is slidably mounted on the fixed rod (26). The limit plate (27) is used to adjust the longitudinal position of the knitting board (34) on the mounting frame (31).

3. The support structure for a large high-speed rapier loom according to claim 1, characterized in that, The winding assembly (4) includes a second motor (41) installed on the non-controller (5) side of the support frame (1). The output shaft of the second motor (41) is connected to the first gear (42) and sequentially meshes with the second gear (43), the third gear (44) and the fourth gear (45) via the same closed-loop belt.

4. The support structure for a large high-speed rapier loom according to claim 3, characterized in that, The second gear (43) and the third gear (44) are each provided with a take-up roller on their sides, and the fourth gear (45) is provided with a cleaning roller on its side.

5. The support structure for a large high-speed rapier loom according to claim 1, characterized in that, The support frame (1) is longer in the middle and shorter on both sides, and the support frame (1) is composed of at least four sets of cross links hinged together to form a triangular stable unit.

6. The support structure for a large high-speed rapier loom according to claim 1, characterized in that, A support plate is provided on the side of the support frame (1) near the winding assembly (4).

7. The support structure for a large high-speed rapier loom according to claim 1, characterized in that, The controller (5) is equipped with a touch-screen control panel.

8. The support structure for a large high-speed rapier loom according to claim 4, characterized in that, The cleaning roller is made of nylon material and coated with an adhesive material.