Pultrusion system

Abstract

The utility model relates to a pultrusion system which comprises a material supply device, a needling device and a mold which are arranged in sequence, and the material supply device is used for installing a yarn roll and a fabric roll; the needling device is provided with a penetrating position and comprises a driving part and a needle body, the needle body is provided with a needle head, a needle hole and a needle tail, the needle head faces the fabric located at the penetrating position, the needle hole is used for penetrating yarn located at the penetrating position, and the needle tail is connected with the driving part so that the driving part can drive the needle body to penetrate the fabric to enable the yarn to penetrate into the fabric; the mold is provided with a material inlet and a material outlet, and the inlet of the mold faces the needling device. The pultrusion system disclosed by the utility model is beneficial to improving the performance indexes of different sections of a product, yarns penetrate through a fabric through the needling device, the problem of wrinkles of the fabric in a mold cavity forming process is solved, the smoothness of the fabric is ensured, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of composite material processing, in particular to a pultrusion forming system. Background Art

[0002] The yarn pultrusion process is a thermosetting composite material forming method. The yarn pultrusion process has specific requirements for the material of the yarn. Not all types of yarns can be well applied to this process, which limits the diversity of material selection. Moreover, the control requirements of process parameters are relatively high, and parameters such as temperature and speed need to be precisely regulated to ensure product quality, which increases the difficulty of process operation. In addition, the design and maintenance of the mold are relatively complex and need to be specially customized and carefully maintained according to different products. For the pure fabric pultrusion process, when the fabric enters the mold, fabric accumulation and fabric wrinkles will occur, and the product cannot be formed. Content of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems in the related technologies to a certain extent. Therefore, an embodiment of the utility model provides a pultrusion forming system, which can better improve the performance indexes of different cross-sections of products. By means of a needling device, the yarn penetrates through the fabric, solving the problem of fabric wrinkles in the die cavity forming, ensuring the flatness of the fabric, and improving the production efficiency.

[0004] The pultrusion forming system of the embodiment of the utility model includes a material supply device, a needling device and a mold arranged in sequence. The material supply device is used for installing a yarn roll and a fabric roll. The needling device has an insertion position. The needling device includes a driving part and a needle body. The needle body has a needle head, a needle hole and a needle tail. The needle head faces the fabric located at the insertion position. The needle hole is used for threading the yarn located at the insertion position. The needle tail is connected with the driving part so that the driving part drives the needle body to penetrate through the fabric and insert the yarn into the fabric. The mold has a material inlet and a material outlet, and the inlet of the mold faces the needling device.

[0005] The pultrusion forming system of the embodiment of the utility model can better improve the performance and stability of products by pultruding with fabric and adding yarns, can better improve the performance indexes of different cross-sections of products. By means of a needling device, the yarn penetrates through the fabric, solving the problem of fabric wrinkles in the die cavity forming, ensuring the flatness of the fabric, and improving the production efficiency.

[0006] In some embodiments, the needling device further includes a bracket, a connecting plate, and a mounting frame. There are two connecting plates, and the two connecting plates are arranged at intervals in the width direction of the fabric. One end of each connecting plate is connected to the bracket. On one side of the two connecting plates facing each other, there are support convex plates, and the two support convex plates are spaced apart. The support convex plates are used to support the fabric; the mounting frame is connected to the two connecting plates, and the driving member is provided on the mounting frame.

[0007] In some embodiments, a chute extending in the width direction of the fabric is provided on the mounting frame. The needling device further includes a slider, and the slider is fitted in the chute and connected to the driving member.

[0008] In some embodiments, the needling device further includes a support plate. The support plate is arranged between the two support convex plates, is spaced apart from the support convex plates, and is connected to the bracket.

[0009] In some embodiments, the number of the support plates is multiple, and the multiple support plates are spaced apart from each other.

[0010] In some embodiments, the slider is detachably connected to the driving member.

[0011] In some embodiments, the needling device further includes a thread-hooking rod. The thread-hooking rod is movably arranged on the bracket and has a hook tip for hooking the yarn passing through the needle holes.

[0012] In some embodiments, the material supply device includes a yarn reel, a yarn guide plate, and a fabric reel arranged in sequence. The yarn reel is used for placing a yarn roll, and the fabric reel is used for placing a fabric roll.

[0013] In some embodiments, the pultrusion forming system further includes a guide plate. The guide plate is located between the needling device and the material supply device, and a first guide hole and a second guide hole are provided on the guide plate. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of the pultrusion forming system according to an embodiment of the present invention;

[0015] Figure 2 is a schematic structural diagram of the needling device according to an embodiment of the present invention;

[0016] Figure 3 is a schematic cross-sectional structural diagram of the needling device according to an embodiment of the present invention;

[0017] Reference Signs:

[0018] Pultrusion Forming System 100;

[0019] Material supply device 1, yarn guiding plate 11, fabric disc 12;

[0020] Needling device 2, driving member 21, needle body 22, bracket 23, connecting plate 24, supporting convex plate 241, mounting frame 25, slider 26, support plate 27, thread hooking rod 28;

[0021] Mold 3, guiding plate 4;

[0022] Fabric 200, yarn 300. Specific embodiments

[0023] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

[0024] As Figures 1 to 3 shown, the pultrusion forming system 100 of the embodiment of the present invention includes a material supply device 1, a needling device 2, and a mold 3 arranged in sequence. The material supply device 1 is used to install a yarn roll and a fabric roll. The needling device 2 has an insertion position. The needling device 2 includes a driving member 21 and a needle body 22. The needle body 22 has a needle head, a needle hole, and a needle tail. The needle head faces the fabric 200 located at the insertion position. The needle hole is used to thread the yarn 300 located at the insertion position. The needle tail is connected to the driving member 21 so that the driving member 21 drives the needle body 22 to pass through the fabric 200 to insert the yarn 300 into the fabric 200. The mold 3 has a material inlet and a material outlet. The inlet of the mold 3 faces the needling device 2.

[0025] The pultrusion forming system 100 of the embodiment of the present invention further includes a traction device (not shown in the figure). The traction device is located downstream of the mold 3. The traction device is used to provide a traction force to drive the fabric 200 and the yarn 300 to move. As Figure 1 shown, the fabric 200 and the yarn 300 move from right to left.

[0026] In the pultrusion forming system 100 of the embodiment of the present invention, a yarn roll and a fabric roll are installed on the material supply device 1. Before the system starts working, the head end of the fabric 200 on the fabric roll is fitted to the traction device, the head end of the yarn 300 on the yarn roll is pulled to the insertion position, and the yarn 300 is passed through the needle hole of the needle body 22. Then, the driving member 21 of the needling device 2 drives the needle body 22 to pierce the fabric 200 located at the insertion position. As Figure 1As shown, the driving member 21 drives the needle body 22 to pierce the fabric 200 downward, thereby driving the yarn 300 to penetrate into the fabric 200, so that a part of the head end of the yarn 300 is located on the lower side of the fabric 200. Then, the head end of the yarn 300 is withdrawn from the needle hole, and the head end of the yarn 300 located on the lower side of the fabric 200 is knotted. Then, the driving member 21 drives the needle body 22 to move upward, and the needle body 22 is reset, completing the penetration of the head end of the yarn 300 into the fabric 200. Then, the traction device is started, and the fabric 200 and the head end of the yarn 300 enter the mold 3 together in an integrated form, and the pultrusion forming system 100 starts the pultrusion forming operation on the fabric 200 and the yarn 300.

[0027] In the pultrusion forming system 100 of the embodiment of the present utility model, pultrusion forming is performed on the combination of the fabric 200 and the yarn 300. Compared with the pultrusion forming products of pure fabric and pure yarn, the formed product performance and stability of the pultrusion forming system 100 are better. Moreover, the yarn 300 is penetrated into the fabric 200 through the needle punching device 2, so that the head ends of the fabric 200 and the yarn 300 are combined into one body, realizing the combination of the head ends of the fabric 200 and the yarn 300 upstream (right side) of the mold 3. And, the combination of the head ends of the fabric 200 and the yarn 300 is not likely to form wrinkles on the fabric 200, nor will the yarn 300 located on the upper side of the fabric 200 form wrinkles. That is, the combination formed by the head ends of the fabric 200 and the yarn 300 can enter the mold 3 in a flat state, avoiding the process of being squeezed and combined instantaneously when the head ends of the fabric 200 and the yarn 300 enter the inlet of the mold 3, thereby avoiding the problem of wrinkles in the combination. When the combination at the front end does not wrinkle after passing through the mold 3, the fabric 200 entering the mold later is not likely to wrinkle either, thus solving the problem that the fabric is likely to wrinkle in the mold cavity in the related art, thereby improving the product yield. At the same time, in the preparation work before the operation of the pultrusion forming system 100, the process of matching the head of the yarn 300 to the traction device is avoided, that is, the yarn threading process is avoided, which is beneficial to improving the production efficiency.

[0028] Therefore, the pultrusion forming system 100 of the embodiment of the present utility model can better improve the product performance and stability by pultrusion forming of the fabric 200 plus the yarn 300, better improve the performance indexes of different cross-sections of the product, penetrate the yarn 300 through the fabric 200 by the needle punching device 2, solve the wrinkle problem of the fabric 200 in the mold cavity forming, ensure the flatness of the fabric 200, and improve the production efficiency.

[0029] Specifically, as Figure 1 shown, the material supply device 1 includes a yarn bobbin (not shown in the figure), a yarn guide plate 11, and a fabric bobbin 12 arranged in sequence. The yarn bobbin is used to place the yarn roll, and the fabric bobbin 12 is used to place the fabric roll.

[0030] In some embodiments, the fabric 200 is a single-layer fabric, or the fabric is a surface felt.

[0031] In some embodiments, the pultrusion forming system 100 further includes a guiding plate 4 located between the needling device 2 and the material supply device 1. The guiding plate 4 is provided with a first guiding hole and a second guiding hole. The first guiding hole is for the fabric 200 to pass through, and the second guiding hole is for the yarn 300 to pass through. After the fabric 200 and the yarn 300 pass through the guiding plate 4, they enter the needling device 2.

[0032] In some embodiments, the needling device 2 further includes a bracket 23, a connecting plate 24, and a mounting frame 25. There are two connecting plates 24, and the two connecting plates 24 are arranged at intervals in the width direction of the fabric 200. One end of the connecting plate 24 is connected to the bracket 23. On the opposite sides of the two connecting plates 24, there are support convex plates 241. The support convex plates 241 are spaced apart from the bracket 23, and the two support convex plates 241 are spaced apart. The support convex plates 241 are used to support the fabric 200. The mounting frame 25 is connected to the two connecting plates 24, and a driving member 21 is provided on the mounting frame 25. The bracket 23 has a certain height, so that the driving member 21 and the needle body 22 can adapt to the height of the mold 3, reducing the height difference between the insertion position under the needle body 22 where the fabric 200 and the yarn 300 pass and the mold 3, and making the layout of the needling device 2 and the mold 3 reasonable. The support convex plates 241 of the connecting plate 24 have a supporting effect on the fabric 200, and can provide a supporting force for the fabric 200 when the driving member 21 drives the needle body 22 to pierce the fabric 200, reducing the deformation of the fabric 200 during the needling process and improving the success rate of the needle body 22 piercing. It should be noted that in the thickness direction of the fabric 200, the support convex plates 241 and the needle body 22 are not opposite to each other, and the support convex plates 241 and the needle body 22 are staggered, so that the needle body 22 will not be blocked by the support convex plates 241 when piercing the fabric 200, ensuring that the needle body 22 can drive the yarn 300 to pierce into the fabric 200.

[0033] In some embodiments, the mounting frame 25 is provided with a sliding groove extending in the width direction of the fabric 200 (such as Figure 2 the front-rear direction shown). The needling device 2 further includes a slider 26, and the slider 26 is fitted in the sliding groove. The slider 26 is connected to the driving member 21. The slider 26 can slide in the sliding groove, and adjusting the position of the slider 26 in the sliding groove can adjust the positions of the driving member 21 and the needle body 22 in the width direction of the fabric 200, so as to adapt to the yarn 300 at different positions in the width direction of the fabric 200 and insert the yarn 300 into the fabric 200.

[0034] In some embodiments, the acupuncture device 2 further includes a support plate 27, which is arranged between two support convex plates 241. The support plate 27 is spaced apart from the support convex plates 241 and is connected to the support bracket 23. In the thickness direction of the fabric 200, the support plate 27 is not opposite to the needle body 22, and the support plate 27 is offset from the needle body 22. The support plate 27 can provide support for the fabric 200, further reducing the deformation of the fabric 200 when the needle body 22 pierces the fabric 200. The gap between the support plate 27 and the support convex plates 241 can provide space for the needle body 22 to pierce, ensuring that the needle body 22 can drive the yarn 300 to pierce into the fabric 200.

[0035] Specifically, the number of the support plates 27 is multiple, and the multiple support plates 27 are spaced apart from each other, thereby forming multiple spaced gaps. These gaps can provide space for the needle body 22 to pierce, so as to adapt to the needle body 22 being located at different positions, ensuring the piercing of the fabric 200 and also ensuring the supporting effect of the support plate 27 on the fabric 200.

[0036] In some embodiments, the slider 26 is detachably connected to the driving member 21. Specifically, the slider 26 and the driving member 21 are detachably connected by bolts. In the preparation stage of the pultrusion forming system 100 of the embodiment of the present utility model, when it is necessary to pass the yarn 300 through the vacuum, the driving member 21 is removed from the slider 26. Then, the head end of the yarn 300 is passed through the space between the mounting frame 25 and the fabric 200, and then the head end of the yarn 300 is moved upward so that both the needle body 22 and the head end of the yarn 300 are located in the space above the mounting frame 25. Then, the yarn 300 is passed through the needle hole, and then the driving member 21 is installed on the slider 26. After the driving member 21 is removed from the slider 26, the operating space for passing the yarn 300 through the needle hole becomes larger, thereby reducing the difficulty of passing the yarn 300 through the hole.

[0037] Specifically, in some embodiments, the driving member 21 adopts an electric telescopic rod. The electric telescopic rod extends to drive the needle body 22 to move downward to pierce the fabric 200, and the electric telescopic rod retracts to drive the needle body 22 to move upward to retract from the fabric 200.

[0038] In some embodiments, the needle punching device 2 further includes a yarn hooking rod 28 which is movably arranged on the bracket 23. The yarn hooking rod 28 has a hook tip for hooking the yarn 300 passing through the needle hole. After the needle body 22 passes through the fabric 200, the yarn 300 passes through the fabric 200 along with the needle body 22. Then, the yarn hooking rod 28 is used to hook the hook tip of the yarn hooking rod 28 to the yarn 300 located in the needle hole. Then, the yarn hooking rod 28 is pulled in a direction away from the needle body 22, so that the yarn 300 gradually disengages from the needle hole. Then, the yarn hooking rod 28 is disengaged from the yarn 300, and the yarn 300 is knotted to ensure that the head end of the yarn 300 is located below the fabric 200 and the yarn 300 is interspersed in the fabric 200. The pultrusion forming system 100 according to the embodiment of the present invention extracts the yarn 300 from the needle hole through the yarn hooking rod 28, which increases the difficulty of the yarn 300 disengaging from the needle hole, is beneficial to improving the production efficiency, and can also avoid the risk of being scratched by the needle hole during personnel operation, thereby improving the production safety.

[0039] In some embodiments, the yarn hooking rod 28 has a handheld end, and the handheld end and the hook tip are respectively located on both sides of the yarn hooking rod 28. The handheld end is connected to the bracket 23 through a flexible rope.

[0040] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by 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. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention 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 invention.

[0041] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0042] In the present utility model, unless otherwise clearly stipulated and defined, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0043] In the present utility model, unless otherwise clearly stipulated and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0044] In the present utility model, terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0045] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A pultrusion system (100), characterized in that: Including arranged in sequence: A material supply device (1), wherein the material supply device (1) is used to install yarn rolls and fabric rolls; A needling device (2), the needling device (2) having an insertion position, the needling device (2) comprising a driving member (21) and a needle body (22), the needle body (22) having a needle head, a needle hole and a needle tail, the needle head facing the fabric (200) located at the insertion position, the needle hole being used for inserting the yarn (300) located at the insertion position, the needle tail being connected to the driving member (21), so that the driving member (21) drives the needle body (22) to penetrate the fabric (200) so that the yarn (300) is inserted into the fabric (200); and A mold (3), wherein the mold (3) has a material inlet and a material outlet, and the inlet of the mold (3) faces the acupuncture device (2).

2. The pultrusion system (100) according to claim 1, characterized in that: The acupuncture device (2) further comprises: Bracket (23); a connecting plate (24), wherein the connecting plates (24) are provided with two plates, the two connecting plates (24) are arranged at intervals in the width direction of the fabric (200), one end of the connecting plate (24) is connected to the bracket (23), and a supporting convex plate (241) is provided on opposite sides of the two connecting plates (24), the two supporting convex plates (241) are spaced apart, and the supporting convex plates (241) are used to support the fabric (200); A mounting frame (25), the mounting frame (25) being connected to the two connecting plates (24), and the driving member (21) being provided on the mounting frame (25).

3. The pultrusion system (100) according to claim 2, characterized in that: The mounting frame (25) is provided with a slide groove extending along the width direction of the fabric (200), and the acupuncture device (2) further comprises a slider (26), the slider (26) is fitted in the slide groove, and the slider (26) is connected to the driving member (21).

4. The pultrusion system (100) according to claim 3, characterized in that: The acupuncture device (2) further comprises a support plate (27), wherein the support plate (27) is disposed between the two support convex plates (241), the support plate (27) is spaced apart from the support convex plates (241), and the support plate (27) is connected to the bracket (23).

5. The pultrusion system (100) according to claim 4, characterized in that: There are a plurality of support plates (27), and the plurality of support plates (27) are spaced apart from each other.

6. The pultrusion system (100) according to claim 3, characterized in that: The sliding block (26) is detachably connected to the driving member (21).

7. The pultrusion system (100) according to claim 2, characterized in that: The needle punching device (2) further comprises a thread hooking rod (28), which is movably arranged on the bracket (23), and the thread hooking rod (28) has a hook tip for hooking the yarn (300) passing through the needle hole.

8. The pultrusion system (100) according to claim 1, characterized in that: The material supply device (1) comprises a yarn (300) disk, a yarn guide plate (11) and a fabric disk (12) which are arranged in sequence. The yarn disk is used to place a yarn roll, and the fabric disk (12) is used to place a fabric roll.

9. The pultrusion system (100) according to claim 1, characterized in that: It further comprises a guide plate (4), wherein the guide plate (4) is located between the acupuncture device (2) and the material supply device (1), and a first guide hole and a second guide hole are provided on the guide plate (4).

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