Detachable small-opening mold

Abstract

The invention relates to a detachable small-opening mold, and belongs to the field of mold machining and manufacturing. The die comprises a shaft sleeve seat, a steel inner support cylinder, a block wood lining, a connecting screw and a self-tapping screw. The shaft sleeve seat comprises a center plate with an arc waist-shaped hole, a middle steel pipe and a round bottom plate; and the steel inner support cylinder is provided with holes for connecting the block wood linings. The block wood linings are cut into a plurality of petals after being processed according to an inner cavity of a product and are convenient to disassemble. Through the detachable design, the mold can be easily detached and demolded, and the universality and the repeated utilization rate are improved. Meanwhile, due to the design of the block wood linings, the block wood linings better adapt to the product shape and are convenient to replace, and production and manufacturing cost is reduced. The device is reasonable in design, compact in structure and easy and convenient to operate, and great convenience is brought to carbon fiber preform production.

Description

Technical Field

[0001] The present application relates to the field of mold processing and manufacturing, and in particular to a detachable small-mouth mold. Background Art

[0002] Carbon fiber composites are now a hot new structural material. Many products are now made of carbon fiber composites, such as common carbon fiber plates and carbon fiber tubes, which can be processed into carbon fiber robotic arms and carbon fiber UAV shells.

[0003] When manufacturing cylinders, spheres, and certain positive curvature bodies of revolution or tubular carbon fiber preforms, the carbon fiber winding molding method is usually used to wind the resin-impregnated carbon fiber onto a core mold according to a certain pattern, and then solidify and demold it.

[0004] In the field of mold processing and manufacturing, small-mouth molds, that is, product molds with a large bottom and a small top, are widely used in the manufacturing process of various products. However, traditional small-mouth molds have significant demoulding problems when manufacturing carbon fiber preform products.

[0005] Traditional small-mouth molds cannot be demolded after the carbon fiber preform product is made. In actual operation, the mold often needs to be destroyed to separate the product from the mold, which not only causes mold loss but also increases production costs. In addition, since each product requires a mold, the versatility of this method is also greatly limited and cannot meet the production needs of diversified products.

[0006] Therefore, how to provide a new small-mouth mold that can solve the above-mentioned demoulding problem, improve the versatility of the mold, and reduce the production cost has become an urgent problem to be solved by technical personnel in this field. Summary of the invention

[0007] In order to solve the problems in the prior art that small-mouth molds cannot be demoulded smoothly, have poor versatility and high production costs, the present application provides a detachable small-mouth mold.

[0008] The present application provides a detachable small-mouth mold adopting the following technical solution: A detachable small-mouth mold, comprising: A shaft sleeve seat, the shaft sleeve seat including a middle steel pipe connected to the processing equipment; An inner support tube, the inner support tube is sleeved outside the shaft sleeve seat and is detachably connected to the shaft sleeve seat, and the shaft sleeve seat is provided with a connecting piece fixedly connected to the inner support tube; A liner block, wherein a plurality of liner blocks are provided, and the overall shape formed by the combination of the plurality of liner blocks is the shape of the inner cavity of the carbon fiber preform. The liner block is arranged on the outer side of the inner support tube at one end close to the bottom of the inner support tube, and is detachably connected to the inner support tube by screws.

[0009] By adopting the above technical scheme, the sleeve seat, the inner support tube and the liner block are combined into one and used as a carbon fiber prefabricated product embryo mold. When in use, the middle steel pipe sleeve is set on the equipment shaft to drive the overall mold to rotate. After the carbon fiber prefabricated product is completed, the sleeve seat is first separated from the inner support tube, and the sleeve seat is withdrawn. Then, the screws connected to the liner block are removed from the inner side of the inner support tube, the inner support tube is taken out, and then the liner blocks are taken out one by one, so as to realize lossless demoulding of the mold, solve the problem that traditional small-mouth molds cannot be demoulded smoothly, and improve the versatility and reuse rate of the mold. At the same time, the present invention has reasonable design, compact structure, and easy operation. It can realize rapid demoulding without damaging the mold, which brings great convenience to the production of carbon fiber preforms.

[0010] Preferably, the lining block is formed into a whole shape according to the inner cavity of the carbon fiber preform and then cut into multiple pieces, and the multiple lining blocks are evenly arranged.

[0011] By adopting the above technical solution, the liner block is firstly processed as a whole according to the shape of the inner cavity of the carbon fiber preform, and then cut into small pieces with multiple petals after the overall processing, so that the liner block can better adapt to the shape of the product, and is convenient for subsequent disassembly and replacement, and can achieve rapid demoulding, thereby improving the flexibility and versatility of the mold.

[0012] Preferably, the lining block includes a first module evenly arranged and a second module arranged in parallel on both sides, a plurality of the first modules are arranged, and a single second module is arranged, and the first module and the second module are spliced ​​into an integral shape and connected to the outer wall of the inner support tube.

[0013] By adopting the above technical scheme, when the rotating carbon fiber liner is connected to the outer wall of the inner support tube, the end close to the outer wall of the inner support tube is usually smaller and the end away from the outer wall of the inner support tube is larger. The liner is divided into multiple evenly arranged first modules and second modules arranged in parallel on both sides. When the entire mold is disassembled, the second module is removed first, and then the first modules are removed in sequence along the position close to the second module, which facilitates the subsequent removal of the liner and realizes fast and lossless demolding.

[0014] Preferably, the lining block is made of wood.

[0015] By adopting the above technical solution, the lining block is made of wood, which is light in weight and convenient for disassembly during operation. At the same time, the cost of using wood as a material is low, further reducing the production cost.

[0016] Preferably, the connecting member comprises a web plate sleeved on the outside of the middle steel pipe and fixedly connected to the middle steel pipe, and a bottom plate vertically fixed to one end of the middle steel pipe, the axis of the web plate and the bottom plate coincides with the axis of the middle steel pipe, and a plurality of waist-shaped holes are provided on the web plate; The bottom of the inner support tube is connected to the bottom plate, a mounting ring is arranged on the inner side wall of the inner support tube, and the inner support tube is connected to the web plate through the mounting ring.

[0017] By adopting the above technical solution, the inner support tube is fixedly connected to the shaft sleeve seat from two positions, the bottom and the inner side, through the web and the bottom plate, and the connection is more stable. After use, when the inner support tube and the shaft sleeve seat are disassembled, the bottom plate and the bottom of the inner support tube are disassembled through the waist-shaped hole, which facilitates the disassembly of the shaft sleeve seat.

[0018] Preferably, the diameter of the bottom plate is smaller than the diameter of the web plate.

[0019] By adopting the above technical solution, the bottom plate is fixedly connected or disassembled with the bottom of the inner support tube through the waist-shaped hole opened on the web plate. The diameter of the bottom plate is set smaller than the diameter of the web plate, which is convenient for the operator to put his hand into the waist-shaped hole, and convenient for fixing or disassembling the bottom plate and the inner support tube. It is ergonomic and improves disassembly efficiency.

[0020] Preferably, reinforcing ribs are provided between the web, the bottom plate and the middle steel pipe.

[0021] By adopting the above technical solution, the web and the bottom plate are arranged perpendicular to the middle steel pipe, and reinforcing ribs are arranged between the web, the bottom plate and the middle steel pipe to improve the overall rigidity and stability of the sleeve seat. The design of the reinforcing ribs can effectively disperse stress and prevent the mold from deformation or damage during use, thereby extending the service life of the mold.

[0022] Preferably, a positioning ring is provided at the bottom of the inner support tube, and the outer diameter of the positioning ring is equal to that of the bottom plate.

[0023] By adopting the above technical solution, a positioning ring is set at the bottom of the inner support tube. When the inner support tube is fixed to the base plate, the thickness of the bottom wall of the inner support tube is increased by the positioning ring, and the fixation to the base plate is more stable, thereby realizing a close combination of various components of the mold.

[0024] Preferably, it also includes a partition layer, which is wrapped around the outer side of the inner support tube and the lining block.

[0025] By adopting the above technical solution, when making carbon fiber products through a mold, it is necessary to first wind the fibers around the outside of the mold, and then put the laid carbon fiber products into a curing furnace for curing. By setting a partition on the outside of the mold, it is convenient to wind the carbon fiber to the outside of the mold, thereby achieving a better curing effect.

[0026] Preferably, the partition layer is made of EVA material.

[0027] By adopting the above technical solution, the EVA material has excellent elasticity. When the carbon fiber product is needle-punched, the carbon fiber tow is brought into the EVA, so that the carbon fiber product is tightly attached to the EVA, ensuring that the carbon fiber product and the mold are not separated during the needling process, avoiding hollowing and stratification when the carbon fiber product is produced.

[0028] In summary, the present application includes at least one of the following beneficial technical effects: 1. The shaft sleeve seat, the inner support cylinder and the liner block are combined into one body and used as a mold for the embryonic body of a carbon fiber prefabricated product. When in use, the middle steel pipe is sleeved on the rotating shaft of the equipment to drive the overall mold to rotate. After the carbon fiber prefabricated product is completed, the shaft sleeve seat is first separated from the inner support cylinder, and the shaft sleeve seat is withdrawn. Then, the screws connected to the liner block are removed from the inner side of the inner support cylinder, and the inner support cylinder is taken out. Then, the liner blocks are taken out one by one to achieve non-destructive demoulding of the mold, which solves the problem that the traditional small-mouth mold cannot be demoulded smoothly, and improves the versatility and reuse rate of the mold. At the same time, the present invention has reasonable design, compact structure, and simple operation. It can achieve rapid demoulding without damaging the mold, which brings great convenience to the production of carbon fiber preforms. 2. The lining block is first processed as a whole according to the shape of the inner cavity of the carbon fiber preform, and then cut into small pieces with multiple petals after the overall processing, so that the lining block can better adapt to the shape of the product, and is convenient for subsequent disassembly and replacement, and can achieve rapid demoulding, thereby improving the flexibility and versatility of the mold; 3. When the rotating carbon fiber liner is connected to the outer wall of the inner support tube, the end close to the outer wall of the inner support tube is usually smaller, and the end away from the outer wall of the inner support tube is larger. The liner is divided into multiple evenly arranged first modules and second modules arranged in parallel on both sides. When the entire mold is disassembled, the second module is removed first, and then the first modules are removed in sequence along the position close to the second module, which is convenient for the subsequent removal of the liner and realizes fast and lossless demolding. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of a detachable small-mouth mold structure of the present application.

[0030] Figure 2 yes Figure 1 Exploded view.

[0031] Explanation of the accompanying drawings: 1. sleeve seat; 11. middle steel pipe; 12. connecting piece; 121. web plate; 122. bottom plate; 123. reinforcing rib; 2. inner support tube; 21. mounting ring; 22. positioning ring; 23. mounting hole; 3. lining block; 31. first module; 32. second module; 33. fixing hole; 4. partition. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-2 This application is described in further detail.

[0033] The present application embodiment discloses a detachable small-mouth mold. Figure 1 , Figure 2 The detachable small-mouth mold includes a sleeve seat 1, an inner support tube 2, a liner 3 and a partition 4.

[0034] Reference Figure 2 The shaft sleeve seat 1 includes a middle steel pipe 11 and a connecting piece. Specifically, the middle steel pipe 11 is a stainless steel pipe. In this embodiment, the diameter of the pipe is set to 100 mm. It is sleeved on the output shaft of the processing equipment and fixed to the output shaft to drive the entire mold to rotate, which is convenient for impregnation and curing of carbon fiber.

[0035] The connecting member 12 includes a web 121 and a bottom plate 122 , and the web 121 and the bottom plate 122 are welded to the middle steel pipe 11 to form an integral arrangement.

[0036] The web plate 121 is a circular steel plate, with a hole in the middle equal to the middle steel pipe 11, and is sleeved on the middle steel pipe 11. Specifically, the web plate 121 can be set at 0.3 times the height of the middle steel pipe 11. A plurality of waist-shaped holes are provided on the surface of the web plate 121 along the axis of the web plate 121, and the distance between the inner and outer sides of the waist-shaped holes is set to 75-100mm, so that the staff can put their hands in easily.

[0037] The bottom plate 122 is fixed to one end of the middle steel pipe 11, specifically located at the end far from the web plate 121. The bottom plate 122 is a circular steel plate, coaxially arranged with the web plate 121 and the middle steel pipe 11, and the diameter of the bottom plate 122 is smaller than the diameter of the web plate 121. Specifically, the diameter of the bottom plate 122 can be set to be larger than the inner diameter of the waist-shaped hole and smaller than the inner diameter of the waist-shaped hole, so that the staff can fix or disassemble the bottom plate 122 through the waist-shaped hole, which is ergonomic and improves the disassembly efficiency.

[0038] Reinforcing ribs 123 are arranged between the web 121, the bottom plate 122 and the middle steel pipe 11. Specifically, the web 121 reinforcing ribs 123 and the bottom plate 122 are arranged at relative positions of the web 121 and the bottom plate 122. The number of reinforcing ribs 123 of the bottom plate 122 and the web 121 can be 3, 4 or the like. In this embodiment, the number of reinforcing ribs 123 of the web 121 and the bottom plate 122 is 3, and the positions of the reinforcing ribs 123 of the web 121 and the bottom plate 122 are staggered, so as to improve the overall rigidity and stability of the sleeve seat 1. The design of the reinforcing ribs 123 can effectively disperse stress and prevent the mold from being deformed or damaged during use, thereby extending the service life of the mold.

[0039] The inner support tube 2 is a circular tube structure with one end open. The inner wall diameter of the inner support tube 2 is compatible with the outer diameter of the web 121. The inner support tube 2 is sleeved on the outside of the shaft sleeve seat 1. Specifically, a positioning ring 22 is set at the bottom of the inner support tube 2, and a mounting ring 21 is set on the inner wall. The positioning ring 22 and the mounting ring 21 are welded to the inner support tube 2 as a whole.

[0040] In one embodiment, the positioning ring 22 is fixedly connected to the base plate 122 by screws. After the positioning ring 22 is fixed to the base plate 122, the mounting ring 21 is located below the web plate 121 and abuts against the web plate 121. The mounting ring 21 has a plurality of threaded holes circumferentially thereon, and the web plate 121 has holes corresponding to the threaded holes. The mounting ring 21 is fixedly connected to the web plate 121 by screws.

[0041] The inner support tube 2 is fixedly connected to the shaft sleeve seat 1 from the bottom and the inner side through the web 121 and the bottom plate 122, and the connection is more stable. After use, when the inner support tube 2 and the shaft sleeve seat 1 are disassembled, the bottom plate 122 and the bottom of the inner support tube 2 are disassembled through the waist-shaped hole, which facilitates the disassembly of the shaft sleeve seat 1.

[0042] The lining block 3 is formed by cutting after the overall shape is processed according to the inner cavity of the carbon fiber preform. Such a design is convenient for subsequent disassembly operations and can ensure the accuracy and adaptability of the mold. Specifically, the lining block 3 is made of wood, which is light in weight and convenient for disassembly of the lining block 3 during operation. The use of wood as a material has a low cost, which reduces the production cost.

[0043] At the same time, the lining block 3 is designed to be replaceable to adapt to the production of carbon fiber preform products of different shapes and sizes. By replacing the lining blocks 3 of different shapes and sizes, the shape and size of the inner cavity of the mold can be easily adjusted to meet diverse production needs. This design not only improves the flexibility and versatility of the mold, but also further reduces the production cost.

[0044] The lining block 3 includes a first module 31 and a second module 32. Specifically, a plurality of first modules 31 are provided, and a single second module 32 is provided. The first module 31 is small inside and large outside, and the second module 32 is provided in parallel, wherein the distance between the two sides of the second module 32 is greater than the width difference between the inner and outer ends of the first module 31.

[0045] When the rotating carbon fiber liner 3 is connected to the outer wall of the inner support tube 2, it is usually smaller at one end close to the outer wall of the inner support tube 2 and larger at the other end away from the outer wall of the inner support tube 2. The liner 3 is divided into multiple evenly arranged first modules 31 and second modules 32 arranged in parallel on both sides. When the entire mold is disassembled, the second module 32 is removed first, and then the first module 31 is removed in sequence along the position close to the second module 32, which facilitates the subsequent removal of the liner 3 and realizes quick and lossless demolding.

[0046] The inner side of the liner 3 abuts against the outer wall of the inner support tube 2. Specifically, a fixing hole 33 is provided on the inner side of the liner 3, and the inner support tube 2 has a mounting hole 23 corresponding to the fixing hole 33. The liner 3 is fixed to the inner support tube 2 by screws passed through the mounting hole 23 and the fixing hole 33. The screws here are self-tapping screws, and the connection between the inner support tube 2 and the liner 3 is more stable and more precise.

[0047] Reference Figure 1 , and also includes a partition layer 4, which is arranged on the outside of the mold. The partition layer 4 is set to be made of EVA material. When the carbon fiber product is made through the mold, the carbon fiber tow is brought into the EVA to make the carbon fiber product tightly attached to the EVA. Specifically, double-sided tape can be used to adhere the EVA to the mold to ensure that the carbon fiber product and the mold are not separated during the needle punching process, thereby avoiding hollowing and stratification when the carbon fiber product is made.

[0048] The implementation principle of a detachable small-mouth mold in the embodiment of the present application is: the sleeve seat 1, the inner support tube 2 and the liner block 3 are combined into one body and used as a carbon fiber prefabricated product embryo mold. When in use, the middle steel pipe 11 is sleeved on the equipment shaft to drive the overall mold to rotate. After the carbon fiber prefabricated product is completed, the sleeve seat 1 is first separated from the inner support tube 2, and the sleeve seat 1 is withdrawn. Then, the screws connected to the liner block 3 are removed from the inner side of the inner support tube 2, and the inner support tube 2 is taken out. Then, the liner blocks 3 are taken out one by one to achieve lossless demolding of the mold, which solves the problem that traditional small-mouth molds cannot be demolded smoothly, and improves the versatility and reusability of the mold. At the same time, the present invention has reasonable design, compact structure, and easy operation. It can achieve rapid demolding without damaging the mold, which brings great convenience to the production of carbon fiber preforms.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A detachable small-mouth mold, characterized in that: include: A shaft sleeve seat (1), the shaft sleeve seat (1) comprising a middle steel pipe (11) connected to a processing device; An inner support tube (2), the inner support tube (2) being sleeved outside the shaft sleeve seat (1) and being detachably connected to the shaft sleeve seat (1), and the shaft sleeve seat (1) being provided with a connecting piece (12) fixedly connected to the inner support tube (2); A liner block (3), wherein a plurality of liner blocks (3) are provided, and the overall shape formed by the combination of the plurality of liner blocks (3) is the shape of the inner cavity of the carbon fiber preform. The liner block (3) is provided on the outer side of the inner support tube (2) near one end of the bottom of the inner support tube (2), and is detachably connected to the inner support tube (2) by screws.

2. The detachable small-mouth mold according to claim 1, characterized in that: The lining block (3) is formed into a whole shape according to the inner cavity of the carbon fiber preform, and then cut into multiple pieces, and the multiple lining blocks (3) are evenly arranged.

3. The detachable small-mouth mold according to claim 2, characterized in that: The lining block (3) comprises a first module (31) that is evenly arranged and a second module (32) that is arranged in parallel on both sides, wherein a plurality of the first modules (31) are arranged and a single second module (32) is arranged, and the first module (31) and the second module (32) are spliced ​​into an integral shape and connected to the outer wall of the inner support tube (2).

4. The detachable small-mouth mold according to claim 3, characterized in that: The lining block (3) is made of wood.

5. The detachable small-mouth mold according to claim 1, characterized in that: The connecting member (12) comprises a web (121) sleeved on the outside of the middle steel pipe (11) and fixedly connected to the middle steel pipe (11), and a bottom plate (122) vertically fixed to one end of the middle steel pipe (11), the axis of the web (121) and the bottom plate (122) coincides with the axis of the middle steel pipe (11), and a plurality of waist-shaped holes are provided on the web (121); The bottom of the inner support tube (2) is connected to the bottom plate (122), a mounting ring (21) is provided on the inner side wall of the inner support tube (2), and the inner support tube (2) is connected to the web plate (121) via the mounting ring (21).

6. The detachable small-mouth mold according to claim 5, characterized in that: The diameter of the bottom plate (122) is smaller than the diameter of the web (121).

7. The detachable small-mouth mold according to claim 6, characterized in that: Reinforcing ribs (123) are provided between the web (121), the bottom plate (122) and the middle steel pipe (11).

8. The detachable small-mouth mold according to claim 7, characterized in that: A positioning ring (22) is provided at the bottom of the inner support tube (2), and the positioning ring (22) has an outer diameter equal to that of the bottom plate (122).

9. The detachable small-mouth mold according to claim 1, characterized in that: It also comprises a partition layer (4), wherein the partition layer (4) is wrapped around the outer side of the inner support tube (2) and the lining block (3).

10. The detachable small-mouth mold according to claim 9, characterized in that: The partition layer (4) is made of EVA material.

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