A preform mold

Abstract

The application discloses a preforming mold, which comprises a preforming plate and an adjusting plate. The preforming plate has an inner cavity, and a front end of the inner cavity is a cavity entrance. The adjusting plate has a core mold avoiding part and a fabric entrance. The fabric entrance extends along the circumference of the core mold avoiding part. The adjusting plate is connected to the front side wall of the preforming plate and is adjustable along the circumference. In the projection plane parallel to the adjusting plate, the core mold avoiding part and the fabric entrance are located inside the contour line of the cavity entrance. The inner cavity comprises a core mold containing area and a fabric preforming area located outside the circumference of the core mold containing area. The core mold avoiding part corresponds to the core mold containing area, and the fabric entrance corresponds to the fabric preforming area. In the application, the position of the adjusting plate connected to the preforming plate is adjustable along the circumference. Therefore, the position of the fabric entrance is adjustable along the circumference, and the position of the fabric joint is also adjustable along the circumference. During the test, the position of the fabric joint can be adjusted to avoid the stress surface of the product after forming, so that the stress reliability of the product is improved.

Description

Technical Field

[0001] This invention relates to the field of pultrusion technology, and more specifically to a preforming mold. Background Technology

[0002] In existing pultrusion preforming dies, the fabric has the same seam position after preforming for different products. However, when the seam position happens to be located on the stress surface of the formed product, it may reduce the product's stress reliability. Therefore, how to provide a preforming die that can avoid the fabric seam position being located on the stress surface of the formed product and improve the product's stress reliability is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0003] The purpose of this invention is to provide a preforming mold and preforming tooling to avoid the fabric seam being located on the stress surface of the formed product, thereby improving the stress reliability of the product.

[0004] To solve the above technical problems, the present invention provides a preforming mold, including a preforming plate and an adjusting plate. The preforming plate has an inner cavity, the front port of which is a cavity inlet. The adjusting plate has a core mold clearance portion and a fabric inlet. The fabric inlet extends circumferentially along the core mold clearance portion. The adjusting plate is connected to the front sidewall of the preforming plate, and the connection position of the adjusting plate is adjustable circumferentially.

[0005] In the projection plane parallel to the adjustment plate, the core mold clearance portion and the fabric inlet are both located inside the outline of the cavity inlet. The inner cavity includes a core mold receiving area and a fabric preforming area located on the outer periphery of the core mold receiving area. The core mold clearance portion corresponds to the core mold receiving area, and the fabric inlet corresponds to the fabric preforming area.

[0006] The preforming mold of this invention adopts a split structure of a preforming plate and an adjustment plate. The inner cavity is set in the preforming plate, and the peripheral wall of the inner cavity is used to preform the outer contour of the fabric. The core mold clearance part and the fabric inlet are set in the adjustment plate. The core mold clearance part is used to avoid the core mold. When the adjustment plate is connected to the preforming plate, the core mold can pass through the core mold clearance part and be installed in the core mold receiving area. The function of the core mold is to preform the inner contour of the fabric. The area around the core mold receiving area is the fabric preforming area. The fabric inlet corresponds to the fabric preforming area and is used for the fabric to pass through. Therefore, the gap between the peripheral wall of the inner cavity and the outer peripheral wall of the core mold can be adaptively set according to the thickness of the fabric. During the preforming process, the fabric enters the inner cavity from the fabric inlet under the action of traction, is preformed under the action of the inner cavity and the core mold, and is finally led out from the cavity outlet.

[0007] Furthermore, the position of the adjusting plate connected to the preforming plate is adjustable circumferentially, meaning that the adjusting plate and the preforming plate are detachably connected. After being adjusted circumferentially to the desired position, the adjusting plate can be fixed relative to the preforming plate. Since the connection position of the adjusting plate is adjustable circumferentially, the position of the fabric inlet is also adjustable circumferentially. Correspondingly, the fabric seam position is also adjustable circumferentially. Thus, during the initial testing process, the connection position of the adjusting plate can be adjusted to ensure that the fabric seam position avoids the stress surface of the formed product, thereby improving the stress reliability of the product.

[0008] Optionally, the preformed plate includes a base plate portion, the middle portion of which protrudes to one side to form a protrusion portion, the protrusion portion being an axially penetrating trumpet-shaped tube, the cross-sectional area of ​​the protrusion portion gradually decreasing in the direction away from the base plate portion, and the interior of the protrusion portion at least partially forming the inner cavity.

[0009] Optionally, the substrate portion is provided with a plurality of first connecting holes on the outer periphery of the cavity inlet, the first connecting holes being distributed circumferentially along the cavity inlet, the adjustment plate is provided with a plurality of second connecting holes correspondingly, the second connecting holes being distributed circumferentially, and the plate also includes a connector, the connector passing through the corresponding first connecting hole and the second connecting hole to fix the preform plate and the adjustment plate.

[0010] Optionally, the fabric inlet is an arc-shaped hole, and the outline of the cavity inlet is at least an arc that matches the corresponding area of ​​the fabric inlet.

[0011] Optionally, the inner cavity is formed inside the protrusion, the cavity inlet of the inner cavity is circular, the rear port of the inner cavity is the cavity outlet, and in the adjustment plate, the core mold clearance part is a hole-like structure that matches the shape of the cavity outlet.

[0012] Optionally, the adjustment plate is provided with two fabric inlets, which are located on the left and right sides of the core mold clearance portion.

[0013] Optionally, the protrusion has a glue injection port at one end near the cavity outlet, and the inner wall of the protrusion has a liquid storage tank at one end near the cavity outlet. The liquid storage tank extends circumferentially along the protrusion, and the glue injection port communicates with the liquid storage tank.

[0014] Optionally, the preform mold is broken circumferentially, and the break point forms an observation zone.

[0015] Optionally, the preformed plate includes a first plate portion and a second plate portion arranged in a left-right direction. The first plate portion has a first notch, and the second plate portion has a second notch. After the first plate portion and the second plate portion are assembled, the first notch and the second notch enclose the inner cavity.

[0016] Optionally, the protrusion forms a core mold clearance cavity and two inner cavities inside, the two inner cavities are connected to the left and right sides of the core mold clearance cavity, and there are two adjustment plates, with each adjustment plate and inner cavity corresponding to the other.

[0017] The adjustment plate is provided with a notch with an open end, and the notch forms part of the structure of the core mold clearance part. When the adjustment plate is connected to the preforming plate, the notch faces the core mold clearance cavity.

[0018] Optionally, in a projection plane parallel to the adjustment plate, the outline of the cavity inlet includes an arc-shaped segment near the outer side, a vertical extension segment near the inner side, and two inclined extension segments. The inclined extension segments connect the corresponding ends of the arc-shaped segment and the vertical extension segment. The outline of the cavity inlet and the outline of the core mold clearance cavity share the vertical extension segment.

[0019] Optionally, the preformed plate includes a first plate portion and a second plate portion arranged in a vertical direction. The first plate portion and the second plate portion are respectively provided with a first notch located in the middle and a second notch located on the left and right sides of the first notch. The corresponding first notch encloses the core mold clearance cavity, and the corresponding second notch encloses the inner cavity. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a first specific embodiment of the preforming mold provided by the present invention;

[0021] Figure 2 for Figure 1 A schematic diagram of the preforming mold during the preforming process;

[0022] Figure 3 for Figure 1 A schematic diagram of the second angle of the preforming mold;

[0023] Figure 4 for Figure 1 A structural schematic diagram of the preforming mold at the third angle;

[0024] Figure 5 for Figure 1 A structural diagram of the fourth angle of the preforming mold;

[0025] Figure 6This is a schematic diagram of the structure of a second specific embodiment of the preforming mold provided by the present invention;

[0026] Figure 7 for Figure 6 A schematic diagram of the second angle of the preforming mold;

[0027] Figure 8 for Figure 6 A structural schematic diagram of the preforming mold at the third angle;

[0028] Figure 9 for Figure 6 A structural diagram of the fourth angle of the preforming mold;

[0029] Figure 10 This is a schematic diagram of the structure of a third specific embodiment of the preforming mold provided by the present invention;

[0030] Figure 11 This is a schematic diagram of the structure of a fourth specific embodiment of the preforming mold provided by the present invention;

[0031] Figure 12 for Figure 11 A schematic diagram of the second angle of the preforming mold;

[0032] Figure 13 for Figure 11 A structural schematic diagram of the preforming mold at the third angle;

[0033] Figure 14 for Figure 11 A structural diagram of the fourth angle of the preforming mold;

[0034] Figure 15 for Figure 11 A structural diagram of the fifth angle of the preforming mold;

[0035] in, Figures 1-15 The annotations in the accompanying drawings are explained as follows:

[0036] 1-Preform plate; 1a-Inner cavity; 1b-Core mold clearance cavity; 11-Base plate portion; 11a-First connecting hole; 12-Protrusion; a-Liquid reservoir; H-Observation strip;

[0037] 2-Adjusting plate; 2a-Core mold clearance part; 2b-Fabric inlet; 2c-Second connecting hole;

[0038] 3-Connectors;

[0039] 01-Fabric; 02-Core mold. Detailed Implementation

[0040] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0041] The term "multiple" as used in this article usually refers to two or more components; and when "multiple" is used to indicate the quantity of certain components, it does not indicate the relationship between these components in terms of quantity.

[0042] In this article, along the extension direction of the inner cavity 1a, the end closer to the substrate portion 11 is the front end, and the end farther away from the substrate portion 11 is the rear end.

[0043] In this article, "left-right direction" refers to the length direction of the substrate 11, and "front-back direction" refers to the extension direction of the fabric 01.

[0044] Please refer to Figures 1-2 , Figure 1 This is a schematic diagram of the structure of a first specific embodiment of the preforming mold provided by the present invention; Figure 2 for Figure 1 A schematic diagram of the preforming mold during the preforming process.

[0045] The present invention provides a preforming mold, including a preforming plate 1 and an adjusting plate 2. The preforming plate 1 has an inner cavity 1a, the front port of the inner cavity 1a is the cavity inlet, and the rear port of the inner cavity 1a is the cavity outlet. The adjusting plate 2 has a core mold clearance portion 2a and a fabric inlet 2b. The fabric inlet 2b extends circumferentially along the core mold clearance portion 2a. The adjusting plate 2 is connected to the front sidewall of the preforming plate 1, and the connection position of the adjusting plate 2 is adjustable circumferentially.

[0046] In the projection plane parallel to the adjustment plate 2, the core mold clearance part 2a and the fabric inlet 2b are both located inside the outline of the cavity inlet. The inner cavity 1a includes a core mold receiving area and a fabric preforming area located on the outer periphery of the core mold receiving area. The core mold clearance part 2a corresponds to the core mold receiving area, and the fabric inlet 2b corresponds to the fabric preforming area.

[0047] The preforming mold of this invention adopts a split structure of a preforming plate 1 and an adjusting plate 2. An inner cavity 1a is disposed on the preforming plate 1, and the peripheral wall of the inner cavity 1a is used to preform the outer contour of the fabric 01. A core mold clearance part 2a and a fabric inlet 2b are disposed on the adjusting plate 2. The core mold clearance part 2a is used to avoid the core mold 02. When the adjusting plate 2 is connected to the preforming plate 1, the core mold 02 can pass through the core mold clearance part 2a and be installed in the core mold receiving area. The function of the core mold 02 is to preform the inner contour of the fabric 01. The area around the core mold receiving area is the fabric preforming area. The fabric inlet 2b corresponds to the fabric preforming area and is used for the fabric 01 to pass through. Therefore, the gap between the peripheral wall of the inner cavity 1a and the outer peripheral wall of the core mold 02 can be adaptively set according to the thickness of the fabric 01. Figure 2 As shown, during the preforming process, the fabric 01 enters the inner cavity 1a through the fabric inlet 2b under the traction action, is preformed under the action of the inner cavity 1a and the core mold 02, and is finally drawn out from the cavity outlet.

[0048] Furthermore, the position of the adjusting plate 2 connected to the preforming plate 1 is adjustable circumferentially, that is, the adjusting plate 2 and the preforming plate 1 are detachably connected. After being adjusted to the required position circumferentially, the adjusting plate 2 can be fixed relative to the preforming plate 1. Since the connection position of the adjusting plate 2 is adjustable circumferentially, the position of the fabric inlet 2b is also adjustable circumferentially. Correspondingly, the fabric seam position is also adjustable circumferentially. In this way, during the early testing process, the connection position of the adjusting plate 2 can be adjusted so that the fabric seam position avoids the stress surface of the product after molding, thereby improving the stress reliability of the product.

[0049] It is understandable that, in practice, the center of the core mold clearance part 2a should also be the rotation center of the adjustment plate 2. In this way, when the position of the adjustment plate 2 is adjusted in the circumferential direction, only the circumferential position of the fabric inlet 2b is adjusted, while the position of the core mold clearance part 2a remains unchanged, making it easier for the core mold 02 to pass through.

[0050] Please continue to refer to this. Figures 1-5 , Figure 3 for Figure 1 A schematic diagram of the second angle of the preforming mold; Figure 4 for Figure 1 A structural schematic diagram of the preforming mold at the third angle; Figure 5 for Figure 1 A schematic diagram of the fourth angle of the preforming mold.

[0051] Taking the first embodiment as an example, in this invention, the preformed plate 1 includes a base plate portion 11, the middle portion of the base plate portion 11 protrudes to one side to form a protrusion portion 12, the protrusion portion 12 is an axially penetrating trumpet tube shape, the cross-sectional area of ​​the protrusion portion 12 gradually decreases in the direction away from the base plate portion 11, the aforementioned inner cavity 1a is formed inside the protrusion portion 12, and the port of the protrusion portion 12 formed at the base plate portion 11 is the aforementioned cavity inlet.

[0052] Thus, the base plate 11 is used to connect the adjustment plate 2, and the protrusion 12 adopts a trumpet-shaped structure to preform the outer contour of the fabric 01. It can be seen that a single preforming mold of the present invention can complete the preforming of a layer of fabric 01.

[0053] Depend on Figure 1 and Figure 2As can be seen, in this embodiment, the cavity outlet of the inner cavity 1a is a rectangular hole. Therefore, the outer contour of the preformed product is also a rectangular structure. In practical applications, the cavity outlet of the inner cavity 1a can be adaptively designed according to the required product contour structure. For example, when the required product contour is a square structure, the cavity outlet of the inner cavity 1a is also a square hole.

[0054] Depend on Figure 1 and Figure 2 As can be seen, in this embodiment, the cross-section of the core mold 02 is square, therefore, the cavity of the preformed product is also a square hole structure. In practical applications, the structure of the core mold 02 can be adaptively designed according to the cavity structure of the required product. For example, if the cavity structure of the required product is a circular hole structure, the cross-section of the core mold 02 will also be circular.

[0055] Meanwhile, the preformed plate 1 can adopt an integral molding structure, that is, the base plate part 11 and the protrusion part 12 are inseparable. In this way, different types of preformed plates 1 can be prefabricated according to requirements to meet the processing needs of products with different cavity structures.

[0056] Alternatively, the substrate portion 11 and the protrusion portion 12 can be separate structures, and then fixed together in a detachable manner. Specifically, the substrate portion 11 is provided with a cavity inlet hole, and the protrusion portion 12 is fixed to the substrate portion 11 by a connector, such as a bolt, and corresponds to the position of the cavity inlet hole. When it is necessary to pre-form products with different cavity structures, only different protrusion portions 12 need to be replaced. The substrate portion 11 can be reused, thereby improving the utilization rate of the substrate portion 11 and saving costs.

[0057] Alternatively, the protrusion 12 can be a split structure along the axial direction, and then fixed together in a detachable manner. The front part of the protrusion 12 is integrally formed with the protrusion 12, and the rear part of the protrusion 12 can be replaced according to the cavity structure of the required product. In this way, when it is necessary to preform products with different cavity structures, only the rear part of the protrusion 12 needs to be replaced, which improves the versatility of the preforming mold, further saves resources, and reduces costs.

[0058] As mentioned above, the position of the adjustment plate 2 connected to the preform plate 1 is adjustable in the circumferential direction. Specifically, the base plate 11 is provided with a plurality of first connecting holes on the outer periphery of the cavity inlet. The first connecting holes are distributed in the circumferential direction of the cavity inlet. The adjustment plate 2 is provided with a plurality of second connecting holes 2c, which are distributed in the circumferential direction. It also includes a connector 3, which passes through the corresponding first connecting hole 11a and second connecting hole 2c to fix the preform plate 1 and the adjustment plate 2. The connection is reliable and easy to disassemble and assemble.

[0059] In this embodiment, the preformed plate 1 and the adjusting plate 2 are fixed together by three connectors 3. In practical applications, the specific number of connectors 3 is not limited, as long as the connection stability between the preformed plate 1 and the adjusting plate 2 is ensured. The connectors 3 can be bolts or similar materials.

[0060] In addition, in practice, the adjustment plate 2 and the preformed plate 1 are not limited to the fixing method of the connecting piece 3 mentioned above. For example, the front side wall of the preformed plate 1 can be provided with a snap-fit ​​groove, and the adjustment plate 2 is snapped into the snap-fit ​​groove and abuts against the front side wall of the preformed plate 1 to achieve relative fixation of the adjustment plate 2 and the preformed plate 1.

[0061] Please continue to refer to this. Figures 1-3 In this embodiment, the fabric inlet 2b is an arc-shaped hole, and the outline of the cavity inlet is a matching circle.

[0062] The term "matching" here means that, in the projection plane parallel to the preform plate 1 and the adjustment plate 2, the outline of the fabric inlet 2b near the outer side can coincide with the outline of the cavity inlet.

[0063] The above settings make it easier to control the forming of fabric 01, achieve smooth traction of fabric 01, enhance the continuous deformation of fabric 01 during the traction process, and avoid problems such as displacement and wrinkles of fabric 01 during the pultrusion process.

[0064] Of course, in practical applications, the shape of the fabric inlet 2b is not limited to a standard arc, and the outline of the cavity inlet is not limited to a standard circle, as long as the corresponding position structure of the cavity inlet matches that of the fabric inlet 2b. The length of the fabric inlet 2b should match the width of the fabric 01 to ensure that the fabric 01 does not shift during the molding process.

[0065] Furthermore, in order to facilitate the installation and adjustment of the preformed plate 1, the preformed plate 1 can be cut in half by wire cutting after the overall processing is completed. That is, the preformed plate 1 includes a first plate part and a second plate part arranged in the left and right direction. The first plate part has a first notch, and the second plate part has a second notch. After the first plate part and the second plate part are assembled, the first notch and the second notch enclose the aforementioned inner cavity 1a.

[0066] Thus, during installation, after adjusting the height and position of the core mold 02, the first plate and the second plate can move towards each other from left to right until they are joined together. Then, they are connected as one unit by adjusting the plate 2. The preformed plate 1 is specifically fixed by a support frame, which has slots at both the top and bottom. The upper and lower ends of the first plate and the second plate can be slidably inserted into the corresponding slots. After they are joined together, the core mold 02 is located inside the inner cavity 1a of the preformed plate 1. If the preformed plate 1 needs to be adjusted or replaced later, the core mold 02 does not need to be disassembled. The first plate and the second plate can be quickly removed by sliding them outward along the slots, which improves the convenience of the adjustment operation.

[0067] Figures 1-5 The preform mold shown is the first embodiment. The interior of the protrusion 12 forms an inner cavity 1a. There is one adjustment plate 2, which corresponds to the position of the inner cavity 1a. The core mold clearance part 2a has a hole-like structure and matches the shape of the cavity outlet. There is also one fabric inlet 2b on the adjustment plate 2.

[0068] This preforming mold is suitable for preforming a single cavity of a single-cavity component product or a single cavity of a multi-cavity component product. The number of preforming molds is the same as the number of layers of fabric 01 required. For example, if the product cavity is formed by three layers of fabric 01, then three preforming molds are required, and each preforming mold is arranged sequentially from front to back.

[0069] Please refer to Figures 6-10 , Figure 6 This is a schematic diagram of the structure of a second specific embodiment of the preforming mold provided by the present invention; Figure 7 for Figure 6 A schematic diagram of the second angle of the preforming mold; Figure 8 for Figure 6 A structural schematic diagram of the preforming mold at the third angle; Figure 9 for Figure 6 A structural diagram of the fourth angle of the preforming mold; Figure 10 This is a structural schematic diagram of a third specific embodiment of the preforming mold provided by the present invention.

[0070] exist Figures 6-10 In the two embodiments of the preform mold shown, the interior of the protrusion 12 forms an inner cavity 1a, the number of adjustment plates 2 is one and corresponds to the position of the inner cavity 1a, the core mold clearance part 2a has a hole-like structure and matches the shape of the cavity outlet, and the number of fabric inlets 2b provided on the adjustment plate 2 is two, with the two fabric inlets 2b located on the left and right sides of the core mold clearance part 2a.

[0071] In this way, the fabric 01 on both sides is formed separately and then joined together in the middle to form a whole. This embodiment of the preforming mold is suitable for preforming the external structure of multi-cavity component products. Similarly, the number of preforming molds is the same as the number of layers of fabric 01 required. For example, if the product exterior is formed by four layers of fabric 01, then four preforming molds are required, and each preforming mold is arranged sequentially from front to back.

[0072] like Figure 6 and Figure 10 As shown, in the preform molds of these two embodiments, the protrusion 12 is provided with a glue injection port 13 at one end near the cavity outlet, and the inner wall of the protrusion 12 is provided with a liquid storage tank a at one end near the cavity outlet. The liquid storage tank a extends circumferentially along the protrusion 12, and the glue injection port 13 communicates with the liquid storage tank a.

[0073] As set up above, reinforcing materials such as resin can enter the liquid storage tank a inside the inner cavity 1a through the injection port 13, and extend along the circumference of the protrusion 12 in the liquid storage tank a to fully impregnate the fabric 01, ensuring the quality stability of the pultruded product.

[0074] Depend on Figure 10 As can be seen, in this embodiment, multiple liquid storage tanks a are provided on the inner side of the protrusion 12. Each liquid storage tank a is distributed circumferentially at intervals, and each liquid storage tank a is connected to at least one injection port 13. In practical applications, each liquid storage tank a can also be interconnected as a whole, which facilitates the circumferential flow of the reinforcing material.

[0075] It is understandable that, since each preformed mold in this application adopts a trumpet-shaped tube, when there are a large number of preformed molds, each preformed mold occupies a large space in the front-back direction. Therefore, in order to make the overall structure of the tooling more compact and shorten the length of the core mold 02, and to ensure the concentricity of the core mold 02, each preformed mold will be installed densely, that is, the interval between two adjacent preformed molds is relatively small. However, this will make it inconvenient for the staff to observe the closing state of the fabric 01.

[0076] Based on this, such as Figure 10 As shown, in this embodiment, the preform mold is broken circumferentially, and the break forms an observation zone H.

[0077] In practical applications, when there are multiple preforming molds, the alternating preforming molds 1' adopt a circumferentially broken structure. For example, when there are four preforming molds, from front to back, the first preforming mold and the third preforming mold are broken circumferentially, and the break forms an observation zone H.

[0078] By observing the H-shaped setting as described above, the closing state of fabric 01 can be better observed without increasing the length of the core mold and ensuring a compact arrangement of the preforming molds. Simultaneously, the second and fourth preforming molds are in a closed state in the circumferential direction, which can restrict the fabric 01 circumferentially. Combined with the rear-end traction force, this ensures the preforming effect of fabric 01.

[0079] To facilitate the installation and adjustment of the preformed plate 1, in this embodiment, the preformed plate 1 also includes a first plate portion and a second plate portion arranged in the left-right direction. The first plate portion has a first notch, and the second plate portion has a second notch. After the first plate portion and the second plate portion are assembled, the first notch and the second notch enclose the inner cavity 1a. The installation and adjustment steps of the preformed plate 1 are as described above and will not be repeated here.

[0080] Please refer to Figures 11-15 , Figure 11 This is a schematic diagram of the structure of a fourth specific embodiment of the preforming mold provided by the present invention; Figure 12 for Figure 11 A schematic diagram of the second angle of the preforming mold; Figure 13 for Figure 11 A structural schematic diagram of the preforming mold at the third angle; Figure 14 for Figure 11 A structural diagram of the fourth angle of the preforming mold; Figure 15 for Figure 11 A schematic diagram of the fifth angle of the preforming mold.

[0081] exist Figures 11-15 In the preforming mold of the fourth embodiment, a core mold clearance cavity 1b and two inner cavities 1a are formed inside the protrusion 12. The two inner cavities 1a are connected to the left and right sides of the core mold clearance cavity 1b. There are two adjustment plates 2, and the adjustment plates 2 and the inner cavities 1a are set in a one-to-one correspondence.

[0082] The adjustment plate 2 is provided with a notch with an open end. The notch forms part of the structure of the aforementioned core mold clearance part 2a. When the adjustment plate 2 is connected to the preforming plate 1, the notch faces the core mold clearance cavity 1b.

[0083] This preforming mold is suitable for preforming the left and right cavities of a three-cavity component product. During operation, the core mold 02 used to form the middle cavity passes through the core mold clearance cavity 1b, and the core molds 02 used to form the two side cavities pass through the inner cavity 1a in a one-to-one correspondence. The fabrics on the left and right sides pass through the corresponding fabric inlets 2b and are preformed under the action of the rear traction force and the inner cavity 1a.

[0084] Similarly, the number of pre-forming molds is the same as the number of layers of fabric 01 required. For example, if the cavities on the left and right sides of the product are formed by two layers of fabric 01, then two pre-forming molds are required, and each pre-forming mold is arranged sequentially from front to back.

[0085] Depend on Figure 12 and Figure 13 As can be seen, the cavity entrance in this embodiment is not a regular circle. In the projection plane parallel to the preform plate 1 and the adjustment plate 2, the outline of the cavity entrance includes an arc-shaped segment near the outside, a vertical extension segment near the inside, and two inclined extension segments. The inclined extension segments connect the corresponding ends of the arc-shaped segment and the vertical extension segment. The outline of the cavity entrance and the outline of the core mold clearance cavity 1b share the vertical extension segment.

[0086] To facilitate the installation and adjustment of the preformed plate 1, in this embodiment, the preformed plate 1 includes a first plate portion and a second plate portion arranged in the vertical direction. The first plate portion and the second plate portion are respectively provided with a first notch located in the middle and a second notch located on the left and right sides of the first notch. The corresponding first notch encloses to form a core mold clearance cavity 1b, and the corresponding second notch encloses to form an inner cavity 1a.

[0087] Meanwhile, the slot for mounting the preforming mold on the support frame has a preset depth along the height direction. The upper end of the first plate is slidably mounted on the slot at the top, and the first plate can move relative to the slot along the height direction. When the first plate moves upward to the disengaged position, the first plate and the core mold 02 can be misaligned along the height direction. The lower end of the second plate is slidably mounted on the slot at the bottom, and the second plate can move relative to the slot along the height direction. When the second plate moves downward to the disengaged position, the second plate and the core mold 02 can be misaligned along the height direction. The preforming tooling also includes a connecting component. One end of the connecting component is connected to the support frame 2, and the other end of the connecting component is detachably connected to the first plate or the second plate.

[0088] As set up above, during installation, after adjusting the height and position of the core mold 02, the first plate and the second plate can be inserted into the corresponding slots one above the other. When they are facing each other, the first plate moves downward and the second plate moves upward until they are joined together. Then, the first plate and the second plate are connected by the adjusting plate 2 to form a complete preform plate 1. Finally, the first plate or the second plate is connected by the connecting component so that the preform mold can be at the required height.

[0089] When it is necessary to adjust or replace the preformed plate 1, there is no need to disassemble the core mold 02. First, disconnect the connection between the connecting parts and the first plate / second plate and remove the adjustment plate 2. Then, push the first plate upward and push the second plate downward. When the first plate and the core mold 02 are misaligned in the height direction, and the second plate and the core mold 02 are misaligned in the height direction, the first plate and the second plate can be quickly removed by sliding them outward along the slot, which improves the convenience of the adjustment operation.

[0090] In addition, in practical applications, the aforementioned fabric 01 can specifically be fiber cloth, yarn bundle, etc.

[0091] The foregoing has provided a detailed description of a preforming mold provided by the present invention. Specific examples have been used to illustrate the principles and implementation methods of the invention. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A preforming mold, characterized in that, The device includes a preformed plate (1) and an adjusting plate (2). The preformed plate (1) has an inner cavity (1a), the front port of which is the cavity entrance. The adjusting plate (2) has a core mold clearance part (2a) and a fabric entrance (2b). The fabric entrance (2b) extends circumferentially along the core mold clearance part (2a). The adjusting plate (2) is connected to the front sidewall of the preformed plate (1), and the connection position of the adjusting plate (2) is adjustable circumferentially, so that the position of the fabric entrance (2b) and the fabric seam position are adjustable circumferentially. In the projection plane parallel to the adjustment plate (2), the core mold clearance part (2a) and the fabric inlet (2b) are both located inside the outline of the cavity inlet. The inner cavity (1a) includes a core mold receiving area and a fabric preforming area located on the outer periphery of the core mold receiving area. The core mold clearance part (2a) corresponds to the core mold receiving area, and the fabric inlet (2b) corresponds to the fabric preforming area. The fabric inlet (2b) is an arc-shaped hole, and the outline of the cavity inlet is at least an arc that matches the corresponding area of ​​the fabric inlet (2b).

2. The preforming mold according to claim 1, characterized in that, The preformed plate (1) includes a base plate portion (11), the middle portion of which protrudes to one side to form a protrusion portion (12), the protrusion portion (12) is an axially penetrating trumpet tube, the cross-sectional area of ​​the protrusion portion (12) gradually decreases in the direction away from the base plate portion (11), and the interior of the protrusion portion (12) at least partially forms the inner cavity (1a).

3. The preforming mold according to claim 2, characterized in that, The substrate (11) has a plurality of first connecting holes (11a) on the outer periphery of the cavity inlet. The first connecting holes (11a) are distributed circumferentially along the cavity inlet. The adjustment plate (2) has a plurality of second connecting holes (2c) corresponding to it. The second connecting holes (2c) are distributed circumferentially. The plate also includes a connector (3). The connector (3) passes through the corresponding first connecting holes (11a) and second connecting holes (2c) to fix the preform plate (1) and the adjustment plate (2).

4. The preforming mold according to claim 2, characterized in that, The inner cavity (1a) is formed inside the protrusion (12). The cavity entrance of the inner cavity (1a) is circular, and the rear port of the inner cavity (1a) is the cavity outlet. In the adjustment plate (2), the core mold clearance part (2a) is a hole-like structure and matches the shape of the cavity outlet.

5. The preforming mold according to claim 4, characterized in that, The adjustment plate (2) is provided with two fabric inlets (2b), which are located on the left and right sides of the core mold clearance part (2a).

6. The preforming mold according to claim 5, characterized in that, The protrusion (12) has a glue injection port (13) at one end near the cavity outlet. The inner wall of the protrusion (12) has a liquid storage tank (a) at one end near the cavity outlet. The liquid storage tank (a) extends circumferentially along the protrusion (12). The glue injection port (13) is connected to the liquid storage tank (a).

7. The preforming mold according to claim 5, characterized in that, The preform mold is broken circumferentially, and the break point forms an observation zone (H).

8. The preforming mold according to claim 4 or 5, characterized in that, The preformed plate (1) includes a first plate portion and a second plate portion arranged in the left-right direction. The first plate portion has a first notch, and the second plate portion has a second notch. After the first plate portion and the second plate portion are assembled, the first notch and the second notch enclose the inner cavity (1a).

9. The preforming mold according to claim 2, characterized in that, The protrusion (12) forms a core mold clearance cavity (1b) and two inner cavities (1a) inside. The two inner cavities (1a) are connected to the left and right sides of the core mold clearance cavity (1b). There are two adjustment plates (2), and the adjustment plates (2) and the inner cavities (1a) are arranged in a one-to-one correspondence. The adjustment plate (2) is provided with a notch with an open end. The notch forms part of the structure of the core mold clearance part (2a). When the adjustment plate (2) is connected to the preform plate (1), the notch faces the core mold clearance cavity (1b).

10. The preforming mold according to claim 9, characterized in that, The preformed plate (1) includes a first plate portion and a second plate portion arranged in the vertical direction. The first plate portion and the second plate portion are respectively provided with a first notch located in the middle and a second notch located on the left and right sides of the first notch. The corresponding first notch encloses the core mold clearance cavity (1b) and the corresponding second notch encloses the inner cavity (1a).

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