Modularized preforming tension bracket suitable for pultrusion process

Abstract

The utility model discloses a modular preforming tension bracket suitable for pultrusion process, which comprises a first threading frame and a second threading frame which are arranged at an interval, a plurality of mounting holes are arranged on the first threading frame and the second threading frame, a detachable first unit panel is arranged in the mounting hole on the first threading frame, and a detachable second unit panel is arranged in the mounting hole on the second threading frame. A detachable second unit panel is arranged in the mounting hole in the second yarn penetrating part, a yarn penetrating hole and a felt penetrating channel are formed in the first unit panel, and a yarn penetrating hole is formed in the second unit panel. The tension control device is simple in structure and convenient to operate, can flexibly adjust and arrange the positions of yarns and felts according to different products, can independently control tension on each surface, has the characteristics of high universality, flexible layout, accurate positioning, independent tension control and the like, and effectively solves the problem that the straightness and profile tolerance of the products are difficult to control during production of pultrusion composite materials at present.

Description

Technical Field

[0001] The utility model relates to the technical field of composite material pultrusion forming equipment, and particularly relates to a modular preforming tension frame applicable to the pultrusion process. Background Art

[0002] The composite material pultrusion forming process technology is an advanced production method, mainly used for producing products of reinforcing materials such as glass fiber and carbon fiber. Its advantages include high production efficiency, stable product quality, low cost, etc. With the continuous progress of technology, this technology has developed rapidly in the past few decades and gradually achieved industrial production. However, during the process of composite materials such as composite fiber yarns and composite felts from their respective mounting yarn racks to the mold for forming, due to the different heights and positions of the raw materials, it is easy to cause problems such as high difficulty in controlling the straightness and profile of different fiber yarns during product production, and high difficulty in controlling the stability of the arrangement and tension of yarns and felts during the production process. Summary of the Invention

[0003] In order to solve certain or some technical problems existing in the prior art, the purpose of this application is to provide a modular preforming tension frame applicable to the pultrusion process, which can flexibly adjust the positions of arranged yarns and felts according to different products, and can perform independent tension control for each surface, with the characteristics of strong versatility, flexible layout, accurate positioning, and independent tension control.

[0004] To solve the above-mentioned existing technical problems, this application is implemented by adopting the following technical solutions:

[0005] A modular preforming tension frame applicable to the pultrusion process includes a first yarn threading rack and a second yarn threading rack arranged at intervals. A plurality of mounting holes are provided on both the first yarn threading rack and the second yarn threading rack. Removable first unit panels are provided in the mounting holes on the first yarn threading rack, and removable second unit panels are provided in the mounting holes on the second yarn threading rack. Yarn threading holes and felt threading channels are provided on the first unit panel, and yarn threading holes are provided on the second unit panel.

[0006] Preferably, a tension adjusting device for adjusting the tension of the fiber yarns passing through the yarn threading holes is provided on the first unit panel.

[0007] Preferably, nine mounting holes distributed in a nine-square grid are provided on both the first yarn threading rack and the second yarn threading rack. Mounting slots are provided on both the upper and lower sides of each mounting hole, and the first unit panel and the second unit panel are arranged in the mounting slots.

[0008] Preferably, porcelain eye yarn threading holes distributed in 9 rows and 9 columns are provided on both the first unit panel and the second unit panel, and the inner diameter of the porcelain eye holes is 4 mm.

[0009] Preferably, one tension adjusting device is provided on one side of each row of the yarn threading holes of the first unit panel.

[0010] Preferably, the tension adjusting device includes a connecting seat, two fixing rods provided on the connecting seat, an adjusting seat fixed to the connecting seat at both ends by screws, and an adjusting rod provided between the adjusting seats on both sides. The two adjusting rods are provided between the two fixing rods.

[0011] Preferably, there is a felt threading channel on each of the upper, lower, left, and right sides of the first unit panel, and the width of the felt threading channel is 3 mm.

[0012] Preferably, a number of cross beams for connection and fixation are provided between the first yarn threading frame and the second yarn threading frame, and a number of unwinding frames for placing felt rolls are also provided between the first yarn threading frame and the second yarn threading frame.

[0013] Preferably, the first yarn threading frame is composed of 2 columns of 1200 * 25 mm, 3 cross beams of 650 * 25, and 6 short columns of 200 * 25.

[0014] Preferably, 9 pieces of the first unit panel are provided on the first yarn threading frame, 5 pieces of the second unit panel are provided on the second yarn threading frame, and the 5 pieces of the second unit panel are arranged at intervals.

[0015] Preferably, the second yarn threading frame is composed of 2 columns of 1400 * 25 mm, 3 cross beams of 650 * 25, and 6 short columns of 300 * 25.

[0016] Preferably, the distance between the first yarn threading frame and the second yarn threading frame is 1200 mm, and the cross beam is 1200 * 25 mm.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] Through the modular design of the first unit panel and the second unit panel, the first unit panel and the second unit panel with different yarn threading holes and felt threading channels can be flexibly assembled with the first yarn threading frame and the second yarn threading frame according to different cross-section products, so as to achieve flexible adjustment according to different products, the positions of the arranged yarns and felts are flexible, and the tension can be controlled separately for each surface. It has the characteristics of strong versatility, flexible layout, accurate positioning, and independent tension control, and can effectively solve the problem that it is difficult to control the straightness and profile of the product during the production of the current pultruded composite materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 This is a schematic structural diagram of the tension adjusting device in the present utility model;

[0021] Figure 3 This is a schematic structural diagram of the installation card slot in the present utility model;

[0022] In the figure: 1. First yarn threading rack; 2. First unit panel; 3. Yarn threading hole; 4. Felt threading channel; 5. Cross beam; 6. Tension adjusting device; 61. Connecting seat; 62. Adjusting seat; 63. Adjusting rod; 64. Fixed rod; 7. Second unit panel; 8. Second yarn threading rack; 9. Installation hole; 10. Unwinding rack; 11. Installation card slot. Specific embodiments

[0023] Next, in combination with the accompanying drawings and specific embodiments, the present application will be further described. It should be noted that, on the premise of not conflicting, the following-described embodiments or technical features can be arbitrarily combined with each other to form new embodiments.

[0024] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0025] The terms "first", "second", etc. in the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are usually of the same type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally represents an "or" relationship between the associated objects before and after.

[0026] As Figure 1 shown, a modular preforming tension rack applicable to the pultrusion process includes a first yarn threading rack 1 and a second yarn threading rack 8 arranged at intervals. A plurality of installation holes 9 are provided on both the first yarn threading rack 1 and the second yarn threading rack 8. A detachable first unit panel 2 is provided in the installation hole 9 on the first yarn threading rack 1, and a detachable second unit panel 7 is provided in the installation hole 9 on the second yarn threading rack. A yarn threading hole 3 and a felt threading channel 4 are provided on the first unit panel 2, and a yarn threading hole 3 is provided on the second unit panel 7.

[0027] During the production process, the preforming tension frame is installed between the yarn frame and the mold. Among them, the first yarn threading frame 1 is on the side close to the yarn frame, while the second yarn threading frame 8 is on the side close to the mold. Thus, before the composite material with yarn enters the mold, it first passes through the first yarn threading frame 1 and the second yarn threading frame 8 for fiber guiding. Among them, the first yarn threading frame 1 and the second yarn threading frame 8 of the preforming tension frame are based on a frame structure, forming two rows of yarn threading holes 3 front and back. And the first unit panel 2 and the second unit panel 7 adopt a modular design, and can flexibly assemble the first unit panel 2 and the second unit panel 7 with different yarn threading holes 3 and felt threading channels 4 according to different cross-sectional products to the first yarn threading frame 1 and the second yarn threading frame 8, so as to achieve flexible adjustment according to different products, flexible arrangement of the positions of yarn and felt, and can be tension-controlled separately for each surface, with the characteristics of strong versatility, flexible layout, precise positioning, independent tension control, etc., and can effectively solve the problem that it is difficult to control the straightness and contour of the current pultruded composite material during production.

[0028] Further improvement is that a tension adjusting device 6 for adjusting the tension of the fiber yarns passing out of the yarn threading holes 3 is provided on the first unit panel 2.

[0029] After multiple composite fiber yarns on the yarn frame enter the first unit panel 2, the tension adjusting device 6 can set the tension of each fiber yarn. Thus, after the fiber yarns are tension-adjusted and preliminarily limited and guided, and then enter the second unit panel 7, the limited yarns adjusted by the tension adjusting device 6 have the characteristics of precise positioning and tension control adjustment, and can effectively solve the problem that it is difficult to control the straightness and contour of the current pultruded composite material during production.

[0030] Even further improvement is as Figure 3 shown. Nine mounting holes 9 distributed in a nine-square grid are provided on both the first yarn threading frame 1 and the second yarn threading frame 8. Mounting slots 11 are provided on both the upper and lower sides of each mounting hole 9. The first unit panel 2 and the second unit panel 7 are arranged in the mounting slots 11; Nine rows and nine columns of porcelain eye yarn threading holes 3 are provided on both the first unit panel 2 and the second unit panel 7, and the inner diameter of the porcelain eye holes is 4 mm.

[0031] There are nine mounting holes 9 distributed in a nine-square grid on both the first yarn threading frame 1 and the second yarn threading frame 8, and each mounting hole 9 is provided with a mounting card slot 11. On both sides of the mounting card slot 11, there are retractable locking steel balls. After installation, the first unit panel 2 and the second unit panel 7 can be relatively fixed by the locking steel balls to prevent them from falling. Other structures can also be used for locking and fixing, which can make the first unit panel 2 and the second unit panel 7 more flexible during assembly and set different positions according to different product specifications, so as to meet different product requirements. At the same time, there are porcelain eye yarn threading holes 3 distributed in 9 rows and 9 columns on both the first unit panel 2 and the second unit panel 7. The inner diameter of the porcelain eye holes is 4 mm, which can better meet the threading requirements of different products, can realize flexible adjustment according to different products, arrange the positions of yarns and felts flexibly, and has a wider application range.

[0032] Further improvement is made as follows. As Figure 2 shown, on one side of each row of the yarn threading holes 3 of the first unit panel 2, there is one tension adjusting device 6; the tension adjusting device 6 includes a connecting seat 61, two fixing rods 64 arranged on the connecting seat 61, an adjusting seat 62 fixed to the connecting seat 61 at both ends through screws, and an adjusting rod 63 arranged between the two adjusting seats 62 on both sides. The two adjusting rods 63 are arranged between the two fixing rods 64.

[0033] On one side of each row of the yarn threading holes 3 of the first unit panel 2, there is one tension adjusting device 6, which can realize flexible adjustment according to different products, arrange the positions of yarns and felts flexibly, and can control the tension of each surface separately. It has the characteristics of strong versatility, flexible layout, precise positioning, and independent tension control, and can effectively solve the problem that it is difficult to control the straightness and profile of products during the production of current pultruded composite materials. Among them, when adjusting the tension through the tension adjusting device 6, the connecting seat 61 is installed on the first yarn threading frame 1, and the two fixing rods 64 are located between the two connecting seats 61. The adjusting seat 62 is fixed to the inner side of the connecting seat 61 through screws and is connected by two adjusting rods 63, so that the adjusting rod 63 and the fixing rod 64 are arranged in parallel. After loosening the fixing screws of the adjusting seat 62, the relative position of the adjusting rod 63 can be adjusted, so as to control the tension of the fiber yarn passing through the adjusting rod 63 and the fixing rod 64. The overall structure is simple and the operation is convenient.

[0034] Further improvement is made as follows. There is a felt threading channel 4 on each of the upper, lower, left, and right sides of the first unit panel 2, and the width of the felt threading channel 4 is 3 mm.

[0035] The composite felt can be guided and limited through the felt threading channel 4, making the material more stable during lamination, avoiding position deviation of the felt during lamination and affecting the product performance. The width of the felt threading channel 4 is 3 mm, which can better limit the product and prevent shaking.

[0036] Further improved, there are several cross beams 5 for connection and fixation between the first yarn threading frame 1 and the second yarn threading frame 8, and several unwinding frames 10 for placing felt rolls are also provided between the first yarn threading frame 1 and the second yarn threading frame 8.

[0037] Through the cross beam 5, the first yarn threading frame 1 and the second yarn threading frame 8 can form an integral body, avoiding the phenomenon of tipping during placement. At the same time, it can also support the unwinding frames 10 at different positions, preventing the unwinding frames 10 from having nowhere to be installed. Among them, the first yarn threading frame 1 is composed of 2 columns of 1200*25 mm, 3 cross beams 5 of 650*25, and 6 short columns of 200*25; there are 9 first unit panels 2 on the first yarn threading frame 1, 5 second unit panels 7 on the second yarn threading frame 8, and the 5 second unit panels 7 are arranged at intervals; the second yarn threading frame 8 is composed of 2 columns of 1400*25 mm, 3 cross beams 5 of 650*25, and 6 short columns of 300*25; the distance between the first yarn threading frame 1 and the second yarn threading frame 8 is 1200 mm, the cross beam 5 is 1200*25 mm, and generally there are 8 unwinding frames 10 for felt rolls with different positions, generally distributed in the upper, lower, left, and right positions. They can be installed on the cross beam 5, or in the mounting holes 9, or fixed through brackets, as long as they do not affect the silk path, with higher flexibility and can meet different product requirements.

[0038] The above embodiments are only the preferred embodiments of the present application and cannot be used to limit the scope of protection of the present application. Any non-substantive changes and substitutions made by those skilled in the art based on the present application belong to the scope of protection required by the present application.

Claims

1. A modular preformed tension frame suitable for pultrusion process, characterized in that: The invention comprises a first yarn threading frame (1) and a second yarn threading frame (8) which are arranged at intervals, wherein the first yarn threading frame (1) and the second yarn threading frame (8) are both provided with a plurality of mounting holes (9), wherein the mounting holes (9) on the first yarn threading frame (1) are provided with a detachable first unit panel (2), and the mounting holes (9) on the second yarn threading frame are provided with a detachable second unit panel (7), wherein the first unit panel (2) is provided with a yarn threading hole (3) and a felt threading channel (4), and the second unit panel (7) is provided with a yarn threading hole (3).

2. A modular preformed tension frame suitable for pultrusion process according to claim 1, characterized in that: The first unit panel (2) is provided with a tension adjustment device (6) for adjusting the tension of the fiber yarn passing through the yarn threading hole (3).

3. A modular preformed tension frame suitable for pultrusion process according to claim 1, characterized in that: The first threading frame (1) and the second threading frame (8) are both provided with nine installation holes (9) distributed in a nine-square grid, and each installation hole (9) is provided with an installation slot (11) on both upper and lower sides, and the first unit panel (2) and the second unit panel (7) are arranged in the installation slot (11).

4. A modular preformed tension frame suitable for pultrusion process according to claim 1, characterized in that: The first unit panel (2) and the second unit panel (7) are both provided with porcelain eyelet yarn threading holes (3) distributed in 9 rows and 9 columns, and the inner diameter of the porcelain eyelet holes is 4 mm.

5. A modular preformed tension frame suitable for pultrusion process according to claim 2, characterized in that: A tension adjustment device (6) is provided on one side of each row of the yarn threading holes (3) of the first unit panel (2).

6. A modular preformed tension frame suitable for pultrusion process according to claim 5, characterized in that: The tension adjustment device (6) comprises a connecting seat (61), two fixing rods (64) arranged on the connecting seat (61), an adjustment seat (62) whose two ends are fixed to the connecting seat (61) by screws, and an adjustment rod (63) arranged between the adjustment seats (62) on both sides, wherein the two adjustment rods (63) are arranged between the two fixing rods (64).

7. A modular preformed tension frame suitable for pultrusion process according to any one of claims 4 to 6, characterized in that: The first unit panel (2) is provided with a felt passage (4) at the top, bottom, left and right sides respectively, and the width of the felt passage (4) is 3 mm.

8. A modular preformed tension frame suitable for pultrusion process according to claim 7, characterized in that: A plurality of cross beams (5) for connection and fixing are arranged between the first threading frame (1) and the second threading frame (8), and a plurality of unwinding frames (10) for placing felt rolls are also arranged between the first threading frame (1) and the second threading frame (8).

9. A modular preformed tension frame suitable for pultrusion process according to claim 8, characterized in that: The first threading frame (1) is provided with nine first unit panels (2), and the second threading frame (8) is provided with five second unit panels (7), and the five second unit panels (7) are arranged at intervals.

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