Yarn threading tool and pultrusion system

By designing an adjustable yarn-threading fixture, the problem of tension in the pultrusion process was solved, improving product qualification rate and production efficiency, and adapting to the needs of different equipment and products.

CN224183810UActive Publication Date: 2026-05-01BEIJING WEISHENG COMPOSITES MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING WEISHENG COMPOSITES MATERIALS CO LTD
Filing Date
2025-05-09
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

In the pultrusion process, the fixed setting of the yarn threading plate and surface felt of the yarn threading fixture makes it impossible to adjust the tension, which affects the product size and mechanical properties, has poor adaptability, and affects the product qualification rate and production efficiency.

Method used

Design a yarn threading fixture, including a support, a shifting component, and a feeding shaft. By adjusting the tension and position of the surface felt, it can adapt to different specifications of equipment and products. An adjustable feeding shaft and adjustment component are used to adjust the position of the surface felt in the up-down and left-right directions.

Benefits of technology

It improves product qualification rate and production efficiency, and improves quality defects caused by tension by adjusting tension and position, adapting to the needs of different specifications of equipment and products.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a yarn threading tool and a pultrusion system. The yarn threading tool comprises a support, a shifting assembly and a discharging shaft, the shifting assembly is arranged on the support and provided with a moving end, the discharging shaft is arranged at the moving end so that the shifting assembly can drive the discharging shaft to move in the first direction, the discharging shaft extends in the second direction, the second direction is perpendicular to the first direction, and the discharging shaft is a tension adjusting shaft. And the discharging shaft is used for assembling the surface felt. According to the yarn threading tool, the tensioning force of the surfacing mat can be adjusted, the position of the discharging shaft can be adjusted in the first direction and the second direction, and therefore the position of the surfacing mat in the vertical direction and the position of the surfacing mat in the left-right direction can be adjusted, the surfacing mat can meet the position requirements of equipment and products of different specifications, and the production efficiency is improved. And quality defects caused by tension can be improved by adjusting the position of the surfacing mat, the qualified rate of products is increased, and meanwhile the production efficiency is improved.
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Description

Yarn threading fixture and pultrusion system Technical Field

[0001] This utility model relates to the field of pultrusion molding technology, specifically to a yarn threading fixture and a pultrusion molding system. Background Technology

[0002] In the pultrusion process, tension can arise due to various reasons, necessitating frequent adjustments to the positions of the surface felt and the threading plate to release this tension. In related technologies, the threading plate and surface felt of the threading fixture are fixed, making it impossible to release excess tension by adjusting the fixture's position. This results in poor adaptability to different equipment and product specifications. Furthermore, the inability to quickly adjust the position and tension affects the final product's dimensions and mechanical properties, thereby impacting the product yield. Summary of the Invention

[0003] This utility model aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, embodiments of this utility model propose a yarn threading fixture that can adjust the tension of the surface felt, and adjust the position of the surface felt in the vertical and horizontal directions. This not only allows the surface felt to adapt to the positional requirements of equipment and products of different specifications, but also improves the quality defects caused by tension by adjusting the position of the surface felt, thereby increasing the product qualification rate and improving production efficiency.

[0005] An embodiment of this utility model proposes a pultrusion molding system.

[0006] According to an embodiment of the present utility model, the yarn threading fixture includes a bracket, a shifting component, and a feeding shaft. The shifting component is disposed on the bracket and has a moving end. The feeding shaft is disposed on the moving end so that the shifting component can drive the feeding shaft to move in a first direction. The feeding shaft extends along a second direction, which is perpendicular to the first direction. The feeding shaft is a tension adjusting shaft and is used to assemble surface felt.

[0007] The yarn threading fixture of this utility model embodiment can adjust the tension of the surface felt and adjust the position of the feeding shaft in the first direction and the second direction, thereby adjusting the position of the surface felt in the vertical direction and the horizontal direction. This not only allows the surface felt to adapt to the position requirements of equipment and products of different specifications, but also improves the quality defects caused by tension by adjusting the position of the surface felt, increases the product qualification rate, and improves production efficiency.

[0008] In some embodiments, the yarn threading fixture further includes an adjustment component and a yarn threading plate. The adjustment component includes a first slide rail, a first slider, and a first locking handle. The first slide rail extends along the first direction and is disposed on the bracket. The first slide rail is spaced apart from the displacement component in a third direction, which is orthogonal to the first direction and the second direction. The first slide rail has a first groove, and the first slider is fitted into the first groove. The yarn threading plate has a first mounting hole, and the first locking handle passes through the first mounting hole and is disposed on the first slider to fix the yarn threading plate on the first slide rail.

[0009] In some embodiments, the adjustment assembly further includes a second slide rail, a second slider, a connecting plate, and a second locking handle. The second slide rail is disposed on the bracket and extends along the second direction. The second slide rail has a second groove. The second slider is fitted into the second groove. The connecting plate is connected to the first slide rail and has a second mounting hole. The second locking handle passes through the second mounting hole and is disposed on the second slider to fix the connecting plate on the second slide rail.

[0010] In some embodiments, there are two of each of the first slide rail, the second slide rail, and the connecting plate, and the two first slide rails and the two connecting plates form a rectangular frame.

[0011] In some embodiments, the support includes a base frame, a first upright, a second upright, and a connecting rod. The first upright and the second upright are both mounted on the base frame. The first upright is provided with the adjustment component, and the second upright is provided with the displacement component. The connecting rod connects the first upright and the second upright.

[0012] In some embodiments, the displacement assembly includes a mounting bracket, a screw, a rotating handle, and a nut seat. The mounting bracket is mounted on the support, the screw is rotatably mounted on the mounting bracket, the screw extends along the second direction, one end of the screw extends out of the mounting bracket, the rotating handle is located at the one end of the screw, and the nut seat is mounted on the screw, the nut seat being the moving end of the displacement assembly.

[0013] In some embodiments, the displacement assembly further includes a guide rod disposed on the mounting bracket, the guide rod extending along the second direction, and the nut seat having a through hole, the guide rod passing through the through hole and slidably connected to the nut seat.

[0014] In some embodiments, guide rods are provided on both radial sides of the screw.

[0015] The pultrusion molding system of this utility model embodiment includes the aforementioned yarn threading fixture.

[0016] The pultrusion molding system of this utility model can adjust the position of the surface felt and the threading plate, adjust the tension, and improve the product qualification rate and production efficiency. Attached Figure Description

[0017] Figure 1 is a schematic diagram of one embodiment of the yarn threading fixture of this utility model;

[0018] Figure 2 is a second structural schematic diagram of the yarn-threading fixture according to an embodiment of this utility model;

[0019] Figure 3 is a partial structural schematic diagram of the adjustment component and the yarn threading plate according to an embodiment of the present invention;

[0020] Figure 4 is a structural schematic diagram of the first fixing handle fixing yarn threading plate (second fixing handle fixing connecting plate) of this utility model embodiment;

[0021] Figure 5 is a structural schematic diagram of the shifting component and the feeding shaft according to an embodiment of the present invention;

[0022] Figure label:

[0023] 100. Wearing work clothes made of yarn;

[0024] 1. Support frame; 11. Base frame; 12. First upright; 13. Second upright; 14. Connecting rod; 15. L-shaped rod.

[0025] 2. Displacement assembly; 21. Mounting bracket; 22. Screw; 23. Rotary handle; 24. Nut seat; 25. Guide rod;

[0026] 3. Feeding shaft;

[0027] 4. Adjustment assembly; 41. First slide rail; 411. First slide groove; 42. First slider; 43. First locking handle; 44. Second slide rail; 441. Second slide groove; 45. Second slider; 46. Connecting plate; 47. Second locking handle.

[0028] 5. Yarn threading board. Detailed Implementation

[0029] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0030] The yarn threading fixture 100 and the pultrusion molding system of this utility model embodiment will be described in detail below with reference to Figures 1 to 5.

[0031] The yarn threading fixture 100 of this utility model includes a support 1, a shifting component 2, and a feeding shaft 3. The shifting component 2 is disposed on the support 1 and has a moving end. The feeding shaft 3 is disposed on the moving end so that the shifting component 2 can drive the feeding shaft 3 to move in a first direction (e.g., the up and down direction in Figure 1). The feeding shaft 3 extends along a second direction (e.g., the left and right direction in Figure 1). The second direction is perpendicular to the first direction. The feeding shaft 3 is a tension adjusting shaft and is used to assemble surface felt.

[0032] In the usage state, the yarn threading fixture 100 of this utility model has a first direction that is up and down and a second direction that is horizontal, as shown in Figures 1 and 2. The second direction is left and right. The following description will be based on the example where the first direction is the same as the up and down direction and the second direction is the same as the left and right direction.

[0033] The feeding shaft 3 is a tension adjusting shaft, which allows the yarn threading fixture 100 of this embodiment to quickly adjust the tension of the surface felt and the position of the surface felt in the second direction (left-right direction) by adjusting the tension adjusting shaft. In addition, the feeding shaft 3 can be moved in the first direction (up-down direction) by the shifting component 2, thereby adjusting the position of the surface felt in the first direction.

[0034] The yarn threading fixture 100 of this utility model embodiment can adjust the tension of the surface felt and adjust the position of the feeding shaft 3 in the first direction and the second direction, thereby adjusting the position of the surface felt in the vertical direction and the horizontal direction. This not only allows the surface felt to adapt to the position requirements of equipment and products of different specifications (heights), but also improves the quality defects caused by tension by adjusting the position of the surface felt, increases the product qualification rate, and improves production efficiency.

[0035] Specifically, the feeding shaft 3 is a manual spring brake mechanical feeding shaft, which can be manually controlled, spring braked and fed, and can control the tension, rotation and axial position of the surface felt during the feeding process.

[0036] In some embodiments, as shown in FIG3, the yarn threading fixture 100 further includes an adjustment component 4 and a yarn threading plate 5. The adjustment component 4 includes a first slide rail 41, a first slider 42 and a first locking handle 43. The first slide rail 41 extends along the first direction and is disposed on the bracket 1. The first slide rail 41 and the shifting component 2 are spaced apart in a third direction. The third direction is orthogonal to the first direction and the second direction, and the third direction is the front-back direction. The first slide rail 41 is provided with a first slide groove 411. The first slider 42 is fitted and installed in the first slide groove 411. The yarn threading plate 5 is provided with a first mounting hole. The first locking handle 43 passes through the first mounting hole and is disposed on the first slider 42 to fix the yarn threading plate 5 on the first slide rail 41.

[0037] When it is necessary to adjust the height of the threading plate 5, loosen the first locking handle 43 to release the fixation between the threading plate 5 and the first slide rail 41, and then push the threading plate 5 to move up or down relative to the first slide rail 41. At the same time, the first slider 42 and the first locking handle 43 move synchronously. After the height adjustment of the threading plate 5 is completed, tighten the first locking handle 43 to fix the first slide rail 41 and the threading plate 5.

[0038] The adjustment assembly 4 further includes a second slide rail 44, a second slider 45, a connecting plate 46, and a second locking handle 47. The second slide rail 44 is mounted on the bracket 1 and extends along the second direction. The second slide rail 44 has a second groove 441. The second slider 45 is fitted into the second groove 441. The connecting plate 46 is connected to the first slide rail 41 and has a second mounting hole. The second locking handle 47 passes through the second mounting hole and is mounted on the second slider 45 to fix the connecting plate 46 onto the second slide rail 44.

[0039] When it is necessary to adjust the left and right position of the threading plate 5, loosen the second locking handle 47 to release the fixation between the connecting plate 46 and the second slide rail 44, and then push the connecting plate 46 or the threading plate 5 to move left or right relative to the second slide rail 44. At the same time, the second slider 45 and the second locking handle 47 move synchronously. After the left and right position of the threading plate 5 is adjusted, tighten the second locking handle 47 to fix the second slide rail 44 and the connecting plate 46, and then fix the threading plate 5.

[0040] Specifically, both the first groove 411 and the second groove 441 are C-shaped grooves.

[0041] Specifically, as shown in Figure 4, both the first locking handle 43 and the second locking handle 47 are 7-shaped adjustable locking handles. Each locking handle has a threaded section and a limiting end face. Both the first slider 42 and the second slider 45 have threaded holes, and the threaded section of the locking handle is fitted into these holes. When it is necessary to fix the threading plate 5 and the first slide rail 41, tightening the first locking handle 43 moves it towards the first slider 42. After the limiting end face of the first locking handle 43 abuts against the threading plate 5, the threading plate 5 and the first slide rail 41 are fixed. When it is necessary to fix the connecting plate 46 and the second slide rail 44, tightening the second locking handle 47 moves it towards the second slider 45. After the limiting end face of the second locking handle 47 abuts against the connecting plate 46, the connecting plate 46 and the second slide rail 44 are fixed.

[0042] The adjustment component 4 of this utility model embodiment connects the threading plate 5 and the bracket 1, realizing the adjustable position of the threading plate 5 in the up-down and left-right directions, thereby adjusting the up-down and left-right positions of the yarn on the threading plate 5. This allows the threading plate 5 to adapt to the position requirements of equipment and products of different specifications (heights). Furthermore, the adjustment of the yarn position by the threading plate 5 can improve quality defects caused by tension and further improve the product qualification rate.

[0043] Specifically, there are two of each of the first slide rail 41, the second slide rail 44, and the connecting plate 46. The two first slide rails 41 and the two connecting plates 46 form a rectangular frame, thereby strengthening the connection between the threading plate 5 and the first slide rail 41, improving the connection between the threading plate 5 and the second slide rail 44 through the first slide rail 41 and the connecting plate 46, and thus improving the stability and firmness of the connection between the threading plate 5 and the bracket 1, thereby improving the stability and reliability of the threading fixture 100 of this utility model embodiment.

[0044] Specifically, the support frame 1 includes a base frame 11, a first upright 12, a second upright 13, and a connecting rod 14. Both the first upright 12 and the second upright 13 are mounted on the base frame 11 and extend vertically. An adjustment component 4 is provided on the first upright 12, and a displacement component 2 is provided on the second upright 13. The connecting rod 14 connects the first upright 12 and the second upright 13, strengthening the connection between them and improving the stability and reliability of the yarn-threading fixture 100 in this embodiment.

[0045] The device comprises two first uprights 12, spaced apart in the left-right direction. The two ends of the second slide rail 44 are connected to the two first uprights 12 respectively. The bracket 1 further includes an L-shaped rod 15, one of which is connected to the second upright 13 via a connecting rod 14, and the other is connected to the L-shaped frame, which in turn is connected to the base frame 11. The two first uprights 12 strengthen the support for the second slide rail 44, and the L-shaped frame enhances the strength and stability of the bracket 1, thereby further improving the stability and firmness of the connection between the threading plate 5, the adjusting assembly 4, and the bracket 1, and further enhancing the stability and reliability of the threading fixture 100 of this embodiment.

[0046] In some embodiments, as shown in FIG5, the shifting assembly 2 includes a mounting bracket 21, a screw 22, a rotating handle 23, and a nut seat 24. The mounting bracket 21 is mounted on a support 1. The screw 22 is rotatably mounted on the mounting bracket 21 and extends along a second direction. One end of the screw 22 extends out of the mounting bracket 21. The rotating handle 23 is located at this end of the screw. The nut seat 24 is mounted on the screw and serves as the moving end of the shifting assembly 2. A person manually rotates the rotating handle 23, synchronously rotating the screw 22, thereby causing the nut seat 24 to move upward or downward, thus moving the feeding shaft 3 up and down. The shifting assembly 2 has a simple structure, low cost, and is easy to operate. Personnel can adjust the feeding shaft 3 up and down according to the actual needs of on-site operations, enabling rapid adjustment of the longitudinal height of the feeding shaft 3 and the surface felt, further improving product production efficiency.

[0047] Specifically, the shifting assembly 2 further includes a guide rod 25, which is mounted on the mounting bracket 21 and extends along a second direction. A through hole is provided on the nut seat 24, and the guide rod 25 passes through the through hole and is slidably connected to the nut seat 24. The guide rod guides the up-and-down sliding of the nut seat 24, ensuring the smoothness and stability of the sliding process and ensuring smooth and precise height adjustment of the pay-off shaft and surface felt.

[0048] Guide rods 25 are provided on both sides of the screw 22 in the radial direction. The two guide rods 25 guide the sliding of the nut seat 24, further improving the smoothness and stability of the sliding process of the nut seat 24, and further ensuring the smoothness and accuracy of the height adjustment of the pay-off spool and the surface felt.

[0049] Specifically, the nut seat 24 is provided with a bearing seat, and the feeding shaft 3 is rotatably connected inside the bearing seat.

[0050] The pultrusion molding system of this utility model is described below.

[0051] The pultrusion molding system of this utility model includes the yarn threading fixture 100 of any embodiment.

[0052] Therefore, the pultrusion molding system of this utility model embodiment can adjust the position of the surface felt and the threading plate, adjust the tension, and improve the product qualification rate and production efficiency.

[0053] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0054] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0055] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0056] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0057] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0058] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A yarn-threading garment (100), characterized in that, include: Scaffold (1); A shifting assembly (2) is disposed on the bracket (1) and has a moving end; and a feeding shaft (3) is disposed on the moving end so that the shifting assembly (2) drives the feeding shaft (3) to move in a first direction, the feeding shaft (3) extends along a second direction perpendicular to the first direction, the feeding shaft (3) is a tension adjusting shaft, and the feeding shaft (3) is used to assemble surface felt.

2. The yarn-threading fixture (100) according to claim 1, characterized in that, Further including an adjustment component (4) and a threading plate (5), the adjustment component (4) includes a first slide rail (41), a first slider (42) and a first locking handle (43), the first slide rail (41) extends along the first direction and is disposed on the bracket (1), the first slide rail (41) and the shifting component (2) are spaced apart in a third direction, the third direction is orthogonal to the first direction and the second direction, the first slide rail (41) is provided with a first groove (411), the first slider (42) is fitted in the first groove (411), the threading plate (5) is provided with a first mounting hole, the first locking handle (43) passes through the first mounting hole and is disposed on the first slider (42) to fix the threading plate (5) on the first slide rail (41).

3. The yarn-threading fixture (100) according to claim 2, characterized in that, The adjustment assembly (4) further includes a second slide rail (44), a second slider (45), a connecting plate (46), and a second locking handle (47). The second slide rail (44) is disposed on the bracket (1) and extends along the second direction. The second slide rail (44) is provided with a second slide groove. The second slider (45) is fitted into the second slide groove. The connecting plate (46) is connected to the first slide rail (41). The connecting plate (46) is provided with a second mounting hole. The second locking handle (47) passes through the second mounting hole and is disposed on the second slider (45) to fix the connecting plate (46) on the second slide rail (44).

4. The yarn-threading fixture (100) according to claim 3, characterized in that, There are two of each of the first slide rail (41), the second slide rail (44), and the connecting plate (46), and the two first slide rails (41) and the two connecting plates (46) form a rectangular frame.

5. The yarn-threading fixture (100) according to claim 2, characterized in that, The support (1) includes a base frame (11), a first upright (12), a second upright (13), and a connecting rod (14). The first upright (12) and the second upright (13) are both mounted on the base frame (11). The first upright (12) is equipped with the adjustment component (4), and the second upright (13) is equipped with the shifting component (2). The connecting rod (14) connects the first upright (12) and the second upright (13).

6. The yarn-threading fixture (100) according to claim 1, characterized in that, The displacement assembly (2) includes a mounting bracket (21), a screw (22), a rotating handle (23), and a nut seat (24). The mounting bracket (21) is mounted on the bracket (1). The screw (22) is rotatably mounted on the mounting bracket (21). The screw (22) extends along the second direction, and one end of the screw extends out of the mounting bracket (21). The rotating handle is located at the one end of the screw. The nut seat (24) is mounted on the screw and is the moving end of the displacement assembly (2).

7. The yarn-threading fixture (100) according to claim 6, characterized in that, The displacement assembly (2) further includes a guide rod (25) disposed on the mounting bracket (21) and extending along the second direction. The nut seat (24) is provided with a through hole, and the guide rod (25) passes through the through hole and is slidably connected to the nut seat (24).

8. The yarn-threading fixture (100) according to claim 7, characterized in that, The guide rod (25) is provided on both sides of the screw in the radial direction.

9. A pultrusion molding system, characterized in that, Includes the yarn-threading fixture (100) as described in any one of claims 1 to 8.