A mold for a closed shell composite product

By designing the positioning mechanism of the side pulling slider and sliding part in the mold of the closed shell composite material product, combined with the detachable slide wear-resistant block and slider pressing, the existence of traditional molds in the mold opening and closing process is solved. Difficulty achieves precise positioning and integrated molding effect of the product, ensuring the sealing and surface quality of the product.

CN115352086BActive Publication Date: 2025-02-18上海晋飞碳纤科技股份有限公司
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Patent Information

Application Number
CN202211034453.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-08-26
Publication Date
2025-02-18
Estimated Expiration
2042-08-26

AI Technical Summary

Technical Problem

The molds of traditional closed shell composite products have difficulties in the mold opening and closing process, resulting in poor product sealing, steps on the mold clamping surface, and safety hazards.

Method used

A mold including an upper template, a lower template and a positioning mechanism is designed. Through the cooperation of the side pulling slider and the sliding part, the precise positioning of the embedded metal parts and the convenience of opening the mold is achieved. At the same time, a detachable slide wear-resistant block and slider strip are used to improve the use efficiency and life of the mold.

Benefits of technology

The precise positioning and integrated molding effect of composite materials products is achieved, solving the problems of uneven wall thickness and poor surface quality during the mold clamping process of traditional molds, ensuring the product's sealing and smooth surface without steps.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to a mold, and specifically to a mold for a closed shell composite material product, including an upper template, a lower template, and a positioning mechanism. An upper model cavity is formed on the upper template, and the positioning mechanism is arranged on the lower template, and together with the lower template, it encloses the lower model cavity, and the positioning mechanism is also used to position with embedded metal parts in the product. The special positioning mechanism of the present invention solves the problems of inaccurate positioning accuracy of embedded metal parts in one-piece molded products and product sealing, and solves the problem of operational complexity caused by repeated disassembly during production and use by using the structure in which the upper template and the upper mold core are integrally molded. The problem of poor product surface quality is solved by arranging a heating tube and a hole structure inside the side-drawing slider, and the problem of difficulty in mold closing is solved by the cooperation between the concave structure on the side-drawing slider and the shovel base on the upper template, so that the wall thickness of the produced product is uniform and the surface is smooth without steps.
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Description

Technical Field

[0001] The invention relates to a mould, in particular to a mould for a closed shell composite product. Background Art

[0002] In order to ensure the airtightness of the product, the mold of the traditional ordinary closed shell composite product usually adopts a wrap-around integrated mold, which makes it difficult to open the mold. In addition, the mold of the closed shell composite product has a prepreg that is thicker than the actual size of the product at room temperature, making it difficult to close the mold, which will cause steps on the mold surface of the product. In addition, the traditional side-drawn insert mold is limited only by the guide rail. When the insert is opened and pulled to the limit position, the insert is easy to tilt and there is a safety hazard. At room temperature, the composite mold is closed by manual thrust, and it is difficult to close the mold if the force is not strong enough. Summary of the invention

[0003] The purpose of the present invention is to provide a mold for a closed shell composite material product, so as to solve the technical problems existing in the prior art.

[0004] To achieve the above-mentioned purpose, the present invention provides a mold for a closed shell composite material product, comprising an upper mold plate, a lower mold plate, and a positioning mechanism;

[0005] An upper mold cavity is formed on the upper mold plate;

[0006] The positioning mechanism is arranged on the lower template and is formed together with the lower template to form a lower mold cavity. The positioning mechanism is also used for positioning with the embedded metal parts in the product.

[0007] In the above scheme, the mold is further provided with an upper mold core and / or a lower mold core, the upper mold core and the upper mold plate are an integral structure, and the lower mold core is embedded in the lower mold plate.

[0008] In the above scheme, the positioning mechanism includes a side pull-out slider and a sliding part, and the sliding part is used to pull the side pull-out slider so that the side pull-out slider is close to the lower model cavity and the embedded metal parts in the product for positioning, or the side pull-out slider is away from the lower model cavity to realize mold opening.

[0009] In the above solution, the sliding part is connected to the lower template, and the side drawer slider is slidably connected to the sliding part.

[0010] In the above scheme, the sliding part includes a guide rail and a pull rod, one end of the guide rail is connected to the lower template, and the other end extends away from the lower template. One end of the pull rod is connected to the side pull-out slider, and the other end extends away from the lower template.

[0011] In the above solution, the guide rail is not in full contact with the side-drawing slider; and / or a limiting portion is provided at the end of the guide rail away from the lower template.

[0012] In the above solution, there are two guide rails, which are arranged close to the two sides of the side drawer slide block;

[0013] The ends of the two guide rails away from the lower template are respectively provided with limiting parts, or a limiting plate is connected between the two ends.

[0014] In the above solution, the pull-out rod passes through the limiting portion or the limiting plate; and / or, further comprises a handle, and the pull-out rod passes through the limiting portion or the limiting plate and is connected to the handle.

[0015] In the above solution, the positioning mechanism is used to form the side wall or part of the side wall of the lower mold cavity.

[0016] In the above scheme, the arrangement of the positioning mechanism includes one of two positioning mechanisms arranged opposite to each other, three positioning mechanisms arranged at an angle of 120°, and four positioning mechanisms arranged opposite to each other in pairs to form a rectangular array.

[0017] The mold also includes a slider wear block and / or a slider pressure strip, the slider wear block is installed at the bottom of the side-drawing slider and fixed to the lower template, and the slider pressure strip is fixed to the lower template and installed in cooperation with the side-drawing slider.

[0018] Since the side-drawn slider will generate friction with the lower template during the sliding process, in order to improve the use efficiency and life of the mold, the friction area between the side-drawn slider and the lower template is separately separated and set as a slider wear-resistant block that is detachably connected to the lower template.

[0019] The wear-resistant block of the slider is made of tempered alloy, which can ensure that the wear-resistant block of the slider has good wear resistance and is replaceable and has a high frequency of use.

[0020] The material of the slider wear block includes but is not limited to high-strength brass alloy, such as CAC304 copper alloy.

[0021] The slider pressure strip is locked on the side-drawn slider, so that the slider can only move back and forth to prevent it from falling into the mold.

[0022] The material of the slider strip includes but is not limited to P20 steel, the material of the lower mold plate is S50C steel, and the material of the lower mold core is 7188HH steel.

[0023] In the above solution, an integrally formed insert is provided on the inner surface of the side-drawing sliding block, and the insert is positioned with the embedded metal part by a pin positioning structure.

[0024] Specifically, an insert is provided on the inner surface of the side-drawing slider, and the material of the insert includes pre-hardened steel, and its model includes but is not limited to 7188HH, NAK80, 738H, preferably 7188H. At this time, the material of the insert is the same as that of the lower mold core.

[0025] The number of the positioning mechanisms can be set according to the positions of the embedded parts of the target product. For example, if the left area, right area, front area, and rear area of ​​the composite material product all have embedded metal parts of preset shapes, corresponding positioning mechanisms need to be set up and the inserts containing preset shapes need to be matched with the embedded metal parts to achieve precise positioning.

[0026] The present invention does not impose any special restrictions on the type of the preset shape, and the shape of the embedded part can be set according to actual needs, so that the side of the obtained composite material product has a specific shape.

[0027] In the production process of composite materials, traditional molds, especially for one-piece molded products, will have the problem of inaccurate positioning accuracy of embedded metal parts of the products, so that the shape of the produced products deviates from the target shape and fails to meet the requirements and becomes defective products. The present invention achieves the characteristics of accurate positioning of embedded metal parts and easy mold opening through the setting of the positioning mechanism, especially through the mutual cooperation of the side-drawn slider and the sliding part.

[0028] In the above solution, a heating tube is installed inside the side-drawing slider.

[0029] In the above scheme, a shovel base is provided on the upper template, and a concave structure is provided on the side of the side-drawing sliding block opposite to the shovel base, and the concave structure and the shovel base cooperate with each other to achieve mold closing.

[0030] In the above solution, the mold further comprises an air cap structure, and the air blowing port of the air cap structure is arranged facing the bottom of the lower model cavity.

[0031] Beneficial effects of the present invention: The present invention solves the problems of inaccurate positioning accuracy of embedded metal parts and product sealing in one-piece composite material products by means of a positioning mechanism arranged around the lower mold core, and solves the problem of operational complexity caused by repeated disassembly of the upper mold core and the upper mold core during production and use by means of a structure in which the upper mold core and the upper mold core are formed in one piece; at the same time, by arranging a heating pipe and a hole structure inside the side-drawn slider, the problem of poor product surface quality caused by uneven heat transfer due to the mold wall thickness can be solved, so that the composite material product produced has excellent one-piece molding effect, and by means of the concave structure arranged on the side-drawn slider and the shovel base on the upper mold base cooperating with each other, the problem of difficulty in closing the mold of the closed shell composite material product is solved under the action of the press, so that the wall thickness of the produced product is uniform and the surface is smooth without steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the product structure produced by the mold provided in Example 1 of the present invention;

[0033] Figure 2 A schematic diagram of the mold body structure without the upper mold cavity provided in Example 1 of the present invention;

[0034] Figure 3 A schematic diagram of the structure of a third side-drawing slider provided in Example 1 of the present invention;

[0035] Figure 4 A schematic diagram of the internal cross-sectional structure of a third side-drawing slider provided in Example 1 of the present invention;

[0036] Figure 5 A schematic diagram of the upper mold cavity of the mold provided in Example 1 of the present invention;

[0037] Figure 6 A schematic diagram of the lower mold cavity of the mold provided in Example 1 of the present invention;

[0038] Figure 7 This is a schematic diagram of the gas cap structure in Example 1 of the present invention;

[0039] In the figure, 1, lower template; 2, lower mold core; 3, first side pull-out slider; 4, second side pull-out slider; 5, third side pull-out slider; 501, third insert; 6, fourth side pull-out slider; 7, slider pressure strip; 8, slider wear block; 9, upper template; 10, upper mold core; 11, heating tube; 12, hole structure; 13, concave structure; 14, shovel base; 15, air cap structure; 151, control valve; 152, regulating valve; 153, air pipe; 154, air cap device; 155, blowing port; 16, sliding part; 161, guide rail; 162, pull rod; 163, limit plate; 164, handle. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0041] Example 1

[0042] See also Figure 1-7 , a mold for a closed shell composite product, comprising an upper mold plate 9, an upper mold core 10, a lower mold plate 1, a lower mold core 2, a positioning mechanism, a slider strip 7, a slider wear block 8, and an air cap structure 15;

[0043] like Figure 5As shown, the upper mold plate 9 and the upper mold core 10 are an integrated structure, and an upper mold cavity is formed on the upper mold core 10. The structure in which the upper mold plate 9 and the upper mold core 10 are formed as one piece solves the problem of operational complexity caused by repeated disassembly of the upper mold core 10 and the upper mold plate 9 during production and use;

[0044] like Figure 2 and Figure 6 As shown, the lower die core 2 is embedded in the lower mold plate 1, and the positioning mechanism is arranged on the lower mold plate 1 and distributed around the lower die core 2, and together with the lower die core 2, a lower mold cavity is formed to be used for positioning with the embedded metal parts in the product.

[0045] The upper mold plate and the lower mold plate of the present invention are respectively provided with an upper mold core and a lower mold core, which can wrap the product to form a specific appearance and internal structure; if the target product does not require a special shape, the mold core may not be provided.

[0046] The positioning mechanism includes a side-pull-out slider and a sliding portion 16. The sliding portion 16 is used to pull the side-pull-out slider so that the side-pull-out slider is positioned close to the lower mold cavity and the embedded metal parts in the product, or the side-pull-out slider is moved away from the lower mold cavity to achieve mold opening.

[0047] Furthermore, the sliding portion 16 is fixedly connected to the lower template 1 , and the side drawer slider is slidably connected to the sliding portion 16 .

[0048] The sliding part 16 includes a guide rail 161 and a pull rod 162. One end of the guide rail 161 is connected to the lower template 1, and the other end extends away from the lower template 1. One end of the pull rod 162 is connected to the side pull-out slider, and the other end extends away from the lower template 1.

[0049] The guide rail 161 is not in full contact with the side-drawing slider. There are two guide rails 161, which are arranged close to the two sides of the side-drawing slider. A limiting plate 163 is provided between the ends of the two guide rails 161 away from the lower template 1.

[0050] Furthermore, the sliding portion 16 also includes a handle 164 , and the pull rod 162 passes through the limiting plate 163 and is connected to the handle.

[0051] The positioning mechanism is used to form the side wall or part of the side wall of the lower mold cavity.

[0052] In this embodiment, the positioning mechanisms are arranged in pairs, with four positioning mechanisms arranged opposite to each other to form a rectangular array surrounding the lower mold core 2 .

[0053] The slider wear block 8 is installed at the bottom of the side-drawn slider and fixed to the lower template 1 with screws. The slider pressure strip 7 is fixed to the lower template 1 with screws and installed in conjunction with the side-drawn slider.

[0054] Since the side-pull slider will generate friction with the lower template during the sliding process, in order to improve the use efficiency and life of the mold, in this embodiment, the friction area between the side-pull slider and the lower template 1 is separately separated and set as a slider wear-resistant block 8 that is detachably connected to the lower template 1.

[0055] In this embodiment, the slider wear-resistant block 8 is made of CAC304 copper alloy, which can ensure that the slider wear-resistant block 8 has good wear resistance and is replaceable and has a high frequency of use. The use of this material can effectively reduce the friction coefficient and reduce the friction resistance, so that the side-pull slider can be pulled smoothly during the opening and closing of the mold.

[0056] The slider pressure strip 7 is locked on the side-drawn slider so that the slider can only move back and forth to prevent it from falling into the mold.

[0057] In this embodiment, the material of the slider strip 7 is P20 steel, the material of the lower mold plate 1 is S50C steel, and the material of the lower mold core 2 is 7188HH steel.

[0058] An integrally formed insert is provided on the inner surface of the side-drawn slider, and the insert is positioned with the embedded metal part through a pin positioning structure, wherein the material of the insert is 7188H steel.

[0059] The insert and the side drawer slide are integrally formed through machining, which can avoid the sealing problem of the prepared product caused by gaps or looseness caused by detachable installation.

[0060] More specifically, the 7188HH steel used is a pre-hardened material with excellent machinability and strong applicability to different machining processes such as wire cutting, electric spark, and deep drilling. In addition, the subsequent surface treatment of the material, such as polishing, has a more obvious effect than other materials.

[0061] The number of positioning mechanisms can be set according to the position of embedded parts of the target product. In the present embodiment, there are four positioning mechanisms. The four positioning mechanisms respectively use the first side drawer slider 3, the second side drawer slider 4, the third side drawer slider 5, and the fourth side drawer slider 6 to match and position the embedded metal parts in the left area, right area, front area, and rear area of ​​the composite product with the first insert, the second insert, the third insert 501, and the fourth insert having specific shapes.

[0062] The structure of the third side-drawing slider 5 in this embodiment is as follows Figure 3 and Figure 4 shown.

[0063] Specifically, the first insert uses the left area of ​​the composite product as the cavity molding, the second insert uses the right side of the composite product as the cavity molding, wherein the right area has a horseshoe-shaped embedded metal part, and the second insert uses a pin positioning mechanism to use the pin head to make square and round shapes and position the embedded metal part. The third insert 3 uses the front area of ​​the composite product as the cavity molding, wherein the front area has an oblong embedded part, and the third insert uses a pin positioning mechanism to use the pin head to make square and round shapes and position the embedded metal part. The fourth insert uses the rear area of ​​the composite product as the cavity molding, wherein the rear area has an elliptical embedded part, and the fourth insert uses a pin positioning mechanism to use the pin head to make square and round shapes and position the embedded metal part. The structure of the composite product produced using this mold is as follows: Figure 1 shown.

[0064] In the production process of composite materials, traditional molds, especially for one-piece molded products, will have the problem of inaccurate positioning accuracy of embedded metal parts of the products, so that the shape of the produced products deviates from the target shape and cannot meet the requirements and become defective products. The present invention achieves the characteristics of accurate positioning of embedded metal parts and easy mold opening through the setting of the positioning mechanism, especially through the mutual cooperation of the side-drawn slider and the sliding part 16.

[0065] A heating tube 11 is installed inside the side-drawing slider, and a hole structure 12 is provided inside the side-drawing slider. By installing a heating tube 11 inside each side-drawing slider, the problem of poor product surface quality caused by uneven heat transfer due to the mold wall thickness is solved. By dissipating heat through the internal hole structure 12, the resin distribution on the surface of the produced composite product can be uniform, thereby solving the problems of glue deficiency and poor local dry yarn caused by uneven heating during the molding process of the composite product.

[0066] A concave structure 13 is provided on the upper side of the side-drawing slider, and the concave structure 13 cooperates with the shovel base 14 of the upper template 9. At the same time, under the action of the press, the problem that the mold of the closed shell composite product is difficult to close the mold is solved, so that the wall thickness of the produced product is uniform, and the surface is smooth without steps at the closing surface.

[0067] The blowing port 155 of the air cap structure 15 is arranged facing the bottom of the cavity of the lower mold core.

[0068] More specifically, if Figure 7 As shown, the gas cap structure 15 includes a control valve 151, a regulating valve 152, an air pipe 153, a gas cap device 154, and an air outlet 155. The regulating valve 152 is a three-interface structure. The control valve 151 is connected to an interface of the regulating valve 152 through the air pipe 153, and the other two interfaces of the regulating valve 152 are respectively connected to two ports of the gas cap device 154 through the air pipe 153. A cover plate is provided on the gas cap device 154, and an air outlet 155 is provided on the cover plate.

[0069] The gas cap structure 15 used in this embodiment is a "pedal type", which specifically means that only one person is needed to control the gas cap switch during the actual mold opening process and can simultaneously remove the product from the mold, thereby reducing costs during the production process.

[0070] The method of using the mold is as follows: after the mold is opened, the handle 164 is used to control the pull rod 162 to drive the side pull slider, so that the side pull slider is pushed into the mold along the guide rail 161, and the pull rod 162 is tightened to lock the side pull slider in position, and then the prepreg sheets are respectively laid on the cavity surface of the lower mold core 2, the cavity surface of the upper mold core 10, and the cavity surfaces of the first side pull slider 3, the second side pull slider 4, the third side pull slider 5, and the fourth side pull slider 6. After the prepreg sheets are laid, the upper mold plate 9 and the lower mold plate 1 are molded together, and after the mold is molded together, the mold is placed on a vulcanizer or a hot press for curing. Warm pressure molding, after the molding stage is completed, the mold is placed in a cooling device and the temperature is reduced to room temperature. The upper mold plate 9 is taken out using a lifting device, and the product remains on the lower mold plate 1. The pull-out rod 162 is rotated to unlock the side pull-out slider, and the first side pull-out slider 3, the second side pull-out slider 4, the third side pull-out slider 5, and the fourth side pull-out slider 6 are pulled out along the guide rail 161 by applying a pulling force to the pull-out rod 162. At this time, the product remains on the lower mold core 2, and then the air volume of the air cap structure 15 is controlled and adjusted to separate the product from the vacuum adsorption state of the mold under the action of blowing.

[0071] Example 2

[0072] A mold for a closed shell composite material product, comprising an upper mold plate, an upper mold core, a lower mold plate, a lower mold core, a positioning mechanism, a slider pressure strip, a slider wear block, and an air cap structure;

[0073] The upper mold plate and the upper mold core are an integrated structure, and an upper mold cavity is formed on the upper mold core. The structure in which the upper mold plate and the upper mold core are formed as one piece solves the problem of operational complexity caused by repeated disassembly of the upper mold core and the upper mold plate during production and use;

[0074] The lower die core is embedded in the lower template. The positioning mechanism is arranged on the lower template and distributed around the lower die core. Together with the lower die core, the positioning mechanism forms a lower mold cavity for positioning with the embedded metal parts in the product.

[0075] The positioning mechanism includes a side-pull-out slider and a sliding part. The sliding part is used to pull the side-pull-out slider so that the side-pull-out slider is positioned close to the lower mold cavity and the embedded metal parts in the product, or the side-pull-out slider is moved away from the lower mold cavity to realize mold opening.

[0076] Furthermore, the sliding part is fixedly connected to the lower template, and the side-drawn sliding block is slidably connected to the sliding part.

[0077] The sliding part includes a guide rail and a pull rod, one end of the guide rail is connected to the lower template, and the other end extends away from the lower template; one end of the pull rod is connected to the side pull-out slider, and the other end extends away from the lower template.

[0078] The guide rail is not in full contact with the side-drawing slider. There are two guide rails, which are arranged close to the two sides of the side-drawing slider. The ends of the two guide rails away from the lower template are respectively provided with limiting parts.

[0079] Furthermore, the sliding portion also includes a handle, and the pull rod passes through the limiting portion and is connected to the handle.

[0080] The positioning mechanism is used to form the side wall or part of the side wall of the lower mold cavity.

[0081] Specifically, the positioning mechanisms in this embodiment are arranged in such a manner that two positioning mechanisms are relatively arranged on both sides of the lower mold core.

[0082] The slider wear block is installed at the bottom of the side-drawn slider and fixed to the lower template with screws. The slider pressure strip is fixed to the lower template with screws and installed in conjunction with the side-drawn slider.

[0083] Since the side-pullout slider will generate friction with the lower template during the sliding process, in order to improve the use efficiency and life of the mold, in this embodiment, the friction area between the side-pullout slider and the lower template is separately separated and set as a slider wear-resistant block that is detachably connected to the lower template.

[0084] In this embodiment, the wear-resistant block of the slider is made of CAC304 copper alloy, which can ensure that the wear-resistant block of the slider has good wear resistance and is replaceable and has a high frequency of use. The use of this material can effectively reduce the friction coefficient and friction resistance, allowing the side-pull slider to be smooth during the opening and closing of the mold.

[0085] The slider pressure strip is locked on the side drawer slider, so that the slider can only move back and forth to prevent it from falling into the mold.

[0086] In this embodiment, the material of the slider strip is P20 steel, the material of the lower mold plate is S50C steel, and the material of the lower mold core is 7188HH steel.

[0087] An integrally formed insert is provided on the inner surface of the side-drawn slider, and the insert is positioned with the embedded metal part through a pin positioning structure, wherein the material of the insert is 7188H steel.

[0088] The insert and the side drawer slide are integrally formed through machining, which can avoid the sealing problem of the prepared product caused by gaps or looseness caused by detachable installation.

[0089] More specifically, the 7188HH steel used is a pre-hardened material with excellent machinability and strong applicability to different machining processes such as wire cutting, electric spark, and deep drilling. In addition, the subsequent surface treatment of the material, such as polishing, has a more obvious effect than other materials.

[0090] The number of positioning mechanisms can be set according to the position of embedded parts of the target product. In the present embodiment, the number of the positioning mechanisms is two. The first side drawer slider and the second side drawer slider corresponding to the two positioning mechanisms respectively contain the first insert and the second insert which match and position the embedded metal parts in the left area and the right area of ​​the composite material product.

[0091] Specifically, the first insert uses the left area of ​​the composite product as the mold cavity, wherein the left area has a circular embedded metal part, and the first insert uses a pin positioning mechanism to use the pin head to make square and round shapes and position the embedded metal part. The second insert uses the right side of the composite product as the mold cavity, wherein the right area has a rectangular embedded metal part, and the second insert uses a pin positioning mechanism to use the pin head to make square and round shapes and position the embedded metal part.

[0092] In the production process of composite materials, traditional molds, especially for one-piece molded products, will have the problem of inaccurate positioning accuracy of embedded metal parts of the products, so that the shape of the produced products deviates from the target shape and fails to meet the requirements and becomes defective products. The present invention achieves the characteristics of accurate positioning of embedded metal parts and easy mold opening through the setting of the positioning mechanism, especially through the mutual cooperation of the side-drawn slider and the sliding part.

[0093] A heating tube is installed inside the side-drawing slider, and a hole structure is provided inside the side-drawing slider. By installing a heating tube inside each side-drawing slider, the problem of poor product surface quality caused by uneven heat transfer due to the mold wall thickness is solved. The internal hole structure is used to release heat, so that the resin distribution on the surface of the produced composite product can be uniform, and the problems of glue deficiency and poor local dry yarn caused by uneven heating during the molding process of the composite product can be solved.

[0094] A concave structure is provided on the upper side of the side-drawing slider, which cooperates with the shovel base of the upper template. At the same time, under the action of the press, the problem of difficult mold closing of closed shell composite products is solved, so that the wall thickness of the produced products is uniform and the surface is smooth without steps at the mold closing surface.

[0095] The air blowing port of the air cap structure is arranged facing the center of the cavity of the lower mold core.

[0096] The gas cap structure includes a control valve, a regulating valve, an air pipe, a gas cap device, and an air blowing port. The regulating valve has a three-interface structure. The control valve is connected to one interface of the regulating valve through an air pipe, and the other two interfaces of the regulating valve are respectively connected to two ports of the gas cap device through the air pipe. A cover plate is provided on the gas cap device, and an air blowing port is provided on the cover plate.

[0097] The gas cap structure used in this embodiment is a "pedal type", which specifically means that only one person is needed to control the gas cap switch during the actual mold opening process and can simultaneously remove the product from the mold, thereby reducing costs during the production process.

[0098] The method of using the mold is as follows: after opening the mold, the side pull-out slider is driven by controlling the pull-out rod through the handle, so that the side pull-out slider is pushed into the mold along the guide rail, and the pull-out rod is tightened to lock the side pull-out slider in position, and then the prepreg sheets are laid on the cavity surface of the lower mold core, the cavity surface of the upper mold core, the cavity surface of the first side pull-out slider, and the cavity surface of the second side pull-out slider, respectively. After the prepreg sheets are laid, the upper template and the lower template are molded together, and after the mold is molded together, the mold is placed on a vulcanizer or a hot press for heating and pressure molding. After the molding stage is completed, the mold is placed in a cooling device and the temperature is lowered to room temperature. The upper template is taken out using a lifting device, and the product is left on the lower template. The pull-out rod is rotated to unlock the side pull-out slider, and the first side pull-out slider, the second side pull-out slider, and the guide rail are pulled out respectively by applying tension to the pull-out rod. At this time, the product remains on the lower mold core, and then the air volume of the air cap structure is controlled and adjusted to separate the product from the vacuum adsorption state of the mold under the action of air blowing.

[0099] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A mold for a closed shell composite product, characterized in that: It includes an upper template, a lower template and a positioning mechanism; An upper mold cavity is formed on the upper mold plate; The positioning mechanism is arranged on the lower template and is surrounded together with the lower template to form a lower mold cavity. The positioning mechanism is also used for positioning with the embedded metal parts in the product. The positioning mechanism includes a side-drawing slider and a sliding part, wherein the sliding part is used to pull the side-drawing slider so that the side-drawing slider is close to the lower mold cavity and the embedded metal parts in the product for positioning, or the side-drawing slider is away from the lower mold cavity to realize mold opening; A heating tube is installed inside the side-drawing slider, and a hole structure is provided inside the side-drawing slider; The mold further comprises a slider wear block and / or a slider pressure strip, wherein the slider wear block is mounted on the bottom of the side-drawing slider and fixed to the lower template, and the slider pressure strip is fixed to the lower template and installed in cooperation with the side-drawing slider; wherein the friction area between the side-drawing slider and the lower template is separately split and set as a slider wear block detachably connected to the lower template; the slider pressure strip is locked on the side-drawing slider; An integrally formed insert is provided on the inner surface of the side-drawing slider, and the insert is positioned with the embedded metal part by a pin positioning structure; a concave structure is provided on the upper side of the side-drawing slider; there are four positioning mechanisms, and the four positioning mechanisms respectively match and position the first insert, the second insert, the third insert, and the fourth insert having a specific shape on the first side-drawing slider, the second side-drawing slider, the third side-drawing slider, and the fourth side-drawing slider with the embedded metal parts in the left area, the right area, the front area, and the rear area of ​​the composite material product; The mold also includes an air cap structure, and the air blowing port of the air cap structure is arranged facing the bottom of the lower model cavity; the air cap structure includes a control valve, a regulating valve, an air pipe, an air cap device, and an air blowing port. The regulating valve is a three-interface structure, the control valve is connected to one interface of the regulating valve through the air pipe, and the other two interfaces of the regulating valve are respectively connected to two ports of the air cap device through the air pipe. A cover plate is provided on the air cap device, and a blow port is provided on the cover plate.

2. The mold for a closed shell composite product according to claim 1, characterized in that: The mold is also provided with an upper mold core and / or a lower mold core, the upper mold core and the upper mold plate are an integral structure, and the lower mold core is embedded in the lower mold plate.

3. The mold for a closed shell composite product according to claim 1, characterized in that: The sliding part is connected to the lower template, and the side-drawing sliding block is slidably connected to the sliding part.

4. The mold for a closed shell composite product according to claim 1, characterized in that: The sliding part includes a guide rail and a pull rod, one end of the guide rail is connected to the lower template, and the other end extends away from the lower template; one end of the pull rod is connected to the side pull-out slider, and the other end extends away from the lower template.

5. The mold for a closed shell composite product according to claim 4, characterized in that: The guide rail is not in full contact with the side-drawing sliding block; and / or a limiting portion is provided at the end of the guide rail away from the lower template.

6. The mold for a closed shell composite material product according to claim 5, characterized in that: There are two guide rails, which are arranged near the two sides of the side drawer slide block; The ends of the two guide rails away from the lower template are respectively provided with limiting parts, or a limiting plate is connected between the two ends.

7. A mold for a closed shell composite material product according to claim 5 or 6, characterized in that: The pull rod passes through the limiting portion or the limiting plate; and / or, further comprising a handle, wherein the pull rod passes through the limiting portion or the limiting plate and is connected to the handle.

8. The mold for a closed shell composite product according to claim 1, characterized in that: The positioning mechanism is used to form the side wall or part of the side wall of the lower mold cavity.

9. The mold for a closed shell composite product according to claim 1, characterized in that: A shovel base is provided on the upper template, and a concave structure is provided on the side of the side-drawing sliding block opposite to the shovel base, and the concave structure cooperates with the shovel base to achieve mold closing.

Citation Information

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