A spiral carbon fiber part forming mold

Abstract

The utility model discloses a spiral carbon fiber part forming die belongs to carbon fiber part forming technical field, this spiral carbon fiber part forming die includes bottom plate, has the first through -hole, and the one end of bottom plate is equipped with the placing groove, and with the coaxial setting of first through -hole, and the projection of placing groove is helical in the first direction, forming subassembly can be dismantled and install on the bottom plate, and forming subassembly is along the outer diameter of placing groove and is surrounded on the bottom plate, and the length of forming subassembly in the first direction gradually increases from one end to the other end, top plate can be dismantled and install on forming subassembly, and top plate and bottom plate are mutually parallel and set up, and the bottom of placing groove, the inside wall of forming subassembly and the bottom wall of top plate form forming cavity between, and pressing assembly can be dismantled and install in placing groove. Therefore, through the setting of bottom plate, forming subassembly and top plate of detachable connection, more convenient demoulding.

Description

Technical Field

[0001] This utility model belongs to the field of carbon fiber parts molding technology, specifically relating to a spiral carbon fiber parts molding mold. Background Technology

[0002] Carbon fiber parts refer to composite material components made primarily of carbon fiber. With their superior performance and unique visual appearance, they occupy an irreplaceable position in high-end industries and high-performance fields. Spiral carbon fiber parts are mainly composed of a spatial spiral shape that gradually expands outward from the starting end. The special shape of the parts restricts the composition of the mold. The demolding sequence also presents a challenge. During production, the parts need to be laid in layers within the assembled mold, and then the mold and product are placed together in an autoclave for molding. Demolding occurs after the mold cools to room temperature. Traditional demolding tools are generally conventional tools such as wrenches and nail pullers, which require manual support, leading to uneven force. This causes vibration and relative positional shifts between the insert and the product, resulting in significant damage to the product surface. Consequently, the surface quality of the product is difficult to guarantee, leading to poor finished product quality, low pass rate, and slow demolding speed and inefficiency. Utility Model Content

[0003] The purpose of this utility model is to address the above-mentioned shortcomings in the prior art by providing a spiral carbon fiber part molding die to solve the technical problem of difficult demolding of spiral carbon fiber part molding dies in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A molding die for forming a spiral carbon fiber part, comprising: The base plate has a first through hole, and one end of the base plate is provided with a placement groove, which is coaxially arranged with the first through hole, and the projection of the placement groove in the first direction is spiral. A molding component is detachably mounted on the base plate, and the molding component surrounds the base plate along the outer diameter of the placement groove, the length of the molding component gradually increases from one end to the other in a first direction; The top plate is detachably mounted on the molding assembly, and the top plate and the bottom plate are arranged parallel to each other. A molding cavity is formed between the bottom of the placement groove, the inner side wall of the molding assembly, and the bottom wall of the top plate. The clamping assembly is detachably installed in the placement slot.

[0005] Furthermore, the placement groove includes a starting end and a ending end, the starting end and the ending end coincide in the radial direction of the first through hole, and the length of the placement groove in the radial direction of the first through hole gradually increases from the starting end to the ending end.

[0006] Further, the molding component includes: The stop forming block is detachably installed on the base plate, and the side wall of the stop forming block and the end face of the terminating end of the placement groove are located in the same plane. Multiple central forming blocks are detachably arranged around the base plate along the outer diameter of the placement groove from the starting end to the ending end, and the side wall of the central forming block located at the ending end is attached to the side wall of the stop forming block. The length of the middle forming block in the first direction gradually increases from the starting end to the ending end of the placement groove, and the lengths of the ends of two adjacent middle forming blocks in the first direction are equal. The starting molding block is detachably mounted on the stop molding block and located above the end of the placement groove.

[0007] Furthermore, the stop forming block is provided with a first connecting groove on the side near the first through hole. The bottom end of the first connecting groove penetrates the bottom wall of the stop forming block, and the top end of the first connecting groove is arc-shaped. The vertical distance between the top wall of the first connecting groove and the top wall of the bottom plate gradually decreases from the starting end away from the placement groove to the starting end near the placement groove.

[0008] Furthermore, the starting molding block is provided with a second connecting groove on the side near the first through hole. The bottom end of the second connecting groove penetrates the bottom wall of the starting molding block, and the top end of the second connecting groove is arc-shaped. The vertical distance between the top wall of the second connecting groove and the top wall of the bottom plate gradually decreases from the starting end near the placement groove to the starting end away from the placement groove. The top wall of the second connecting groove is connected to the top wall of the first connecting groove.

[0009] Furthermore, the top plate includes: The plate has a second through hole at one end, which is coaxially arranged with the first through hole. The abutment portion is installed at one end on the bottom wall of the plate body, and the length of the abutment portion in the first direction gradually decreases from the starting end to the ending end of the placement groove, the length of the abutment portion in the radial direction of the second through hole gradually increases from the starting end to the ending end of the placement groove, and the projection of the abutment portion in the first direction coincides with the projection of the placement groove in the first direction. The connecting part is installed at one end on the bottom wall of the plate. The length of the connecting part in the first direction gradually decreases from the starting end to the ending end of the placement groove. The inner side wall of the connecting part fits against the outer side wall of the abutting part. The projection of the connecting part in the first direction coincides with the projection of the plurality of middle forming blocks in the first direction.

[0010] Furthermore, the plate, the connecting part, the middle forming block, and the base plate are connected by screws.

[0011] Furthermore, it also includes multiple lifting rings, which are respectively installed on the base plate and the plate body.

[0012] Furthermore, it also includes: There are two first support plates, both of which are installed on the base plate, and the two first support plates are symmetrically arranged with the straight line containing the axis of the first through hole as the axis of symmetry. There are two second support plates, both of which are installed on the plate body, and the two second support plates are symmetrically arranged with the straight line containing the axis of the second through hole as the axis of symmetry.

[0013] Furthermore, the clamping assembly includes three clamping blocks. The bottom wall of the mounting groove has an annular groove with an inner diameter equal to the inner diameter of the first through hole. The three clamping blocks are connected end to end and can be detachably installed in the annular groove. Each clamping block has multiple prying slots on one side.

[0014] The spiral carbon fiber part forming mold provided by this utility model has the following beneficial effects: 1. The detachable connection of the base plate, molding components and top plate makes the thermal expansion coefficient matching of the spiral carbon fiber part molding mold provided by this utility model better, making it easier to process complex surfaces, and making it easier to remove the spiral carbon fiber part from the mold.

[0015] 2. The detachable connection of the base plate, molding components, and top plate facilitates the individual replacement of damaged parts, reducing maintenance costs.

[0016] 3. With the detachable connection of the base plate, molding components and top plate, this split design can disperse the residual stress during the curing process through interface design. Compared with the integral mold, the elastic modulus of the spiral carbon fiber parts molding mold provided by this utility model is closer to that of the product, which can effectively avoid dimensional deviations caused by rigidity differences. Attached Figure Description

[0017] Figure 1 A schematic diagram of the structure of the spiral carbon fiber part forming mold provided in this embodiment of the utility model; Figure 2 An exploded view of the spiral carbon fiber part forming mold provided in this embodiment of the utility model; Figure 3 A cross-sectional view of the spiral carbon fiber part forming mold provided in an embodiment of this utility model; Figure 4 A schematic diagram of the structure of the base plate provided in an embodiment of this utility model; Figure 5 A schematic diagram of the top plate provided in an embodiment of this utility model; Figure 6 This is a schematic diagram of the structure of the middle forming block provided in an embodiment of the present utility model; Figure 7 This is a schematic diagram of the structure of the stop forming block provided in an embodiment of the present utility model; Figure 8 This is a schematic diagram of the structure of the starting molding block provided in an embodiment of the present utility model; Figure 9 This is a schematic diagram of the clamping assembly provided in an embodiment of the present invention.

[0018] The attached diagram shows the markings and corresponding component names: 1-Base plate, 11-First through hole, 12-Placement groove, 121-Starting end, 122-Ending end, 13-Annular groove, 2-Molding component, 21-Stop molding block, 211-First connecting groove, 22-Middle molding block, 23-Starting molding block, 231-Second connecting groove, 3-Top plate, 31-Plate body, 311-Second through hole, 32-Abutting part, 33-Connecting part, 4-Molding cavity, 5-Clamping block, 51-Prying mold groove, 6-Lifting ring, 7-First support plate, 71-Second support plate, 8-Finished part. Detailed Implementation

[0019] The specific embodiments of this utility model are described below to enable those skilled in the art to understand this utility model. However, it should be understood that this utility model is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of this utility model as defined and determined by the appended claims, these changes are obvious. All utility model creations utilizing the concept of this utility model are within the scope of protection.

[0020] This embodiment provides a spiral carbon fiber part molding die, which solves the technical problem of difficult demolding of spiral carbon fiber part molding dies in the prior art. The spiral carbon fiber part molding die includes a base plate 1, a molding component 2, a top plate 3, and a clamping component, wherein: refer to Figures 1-3The base plate 1 has a first through hole 11, which passes through the top and bottom ends of the base plate 1. One end of the base plate 1 is provided with a placement groove 12, which is coaxially arranged with the first through hole 11. The projection of the placement groove 12 in the first direction is spiral. It should be noted that the first direction is the axial direction of the first through hole 11.

[0021] The molding component 2 is detachably installed on the base plate 1, and the molding component 2 surrounds the base plate 1 along the outer diameter of the placement groove 12. The length of the molding component 2 in the first direction gradually increases from one end to the other end. With the detachably installed molding component 2, after the part is formed, the molding component 2 is disassembled first, so that the part can be easily removed from the mold.

[0022] The top plate 3 is detachably installed on the molding component 2, and the top plate 3 and the bottom plate 1 are arranged parallel to each other. A molding cavity 4 is formed between the bottom of the placement groove 12, the inner side wall of the molding component 2 and the bottom wall of the top plate 3. In this way, the molding cavity 4 makes it easy to mold the carbon fiber prepreg sheet into the required shape.

[0023] The clamping assembly is detachably installed in the placement groove 12, so that the laid carbon fiber prepreg sheet can be easily clamped in the placement groove 12.

[0024] refer to Figure 4 The placement groove 12 includes a starting end 121 and a ending end 122. The starting end 121 and the ending end 122 coincide in the radial direction of the first through hole 11, and the length of the placement groove 12 in the radial direction of the first through hole 11 gradually increases from the starting end 121 to the ending end 122. Specifically, the inner diameter of the placement groove 12 is a circle, and the outer diameter of the placement groove 12 gradually increases from the starting end 121 to the ending end 122, that is, the outer diameter of the placement groove 12 is a planar spiral shape.

[0025] refer to Figures 6-8 The molding component 2 includes a stop molding block 21, a middle molding block 22, and a starting molding block 23, wherein: The stop forming block 21 is detachably mounted on the base plate 1, and the side wall of the stop forming block 21 and the end face of the end of the placement groove 122 are in the same plane. Specifically, the side wall of the stop forming block 21 near the end of ...

[0026] There are multiple central forming blocks 22. These central forming blocks 22 are detachably arranged on the base plate 1 along the outer diameter of the placement groove 12 from the starting end 121 to the ending end 122. The side wall of the central forming block 22 located at the ending end 122 is in contact with the side wall of the stop block. The length of the central forming block 22 at the ending end 122 in the first direction is less than the length of the stop block 21 in the first direction. The length of the stop block 21 in the radial direction of the first through hole 11 is greater than the outer diameter of the ending end 122 of the placement groove 12. This makes it easier to form the part.

[0027] The length of the middle forming block 22 in the first direction gradually increases from the starting end 121 to the ending end 122 of the placement groove 12. That is, the bottom surface of the middle forming block 22 is a plane, the top surface is an inclined surface, and the ends of two adjacent middle forming blocks 22 have the same length in the first direction.

[0028] The starting molding block 23 is detachably mounted on the stop molding block 21 and located above the end 122 of the placement groove 12. Optionally, the starting molding block 23 is bolted to the stop molding block 21.

[0029] Optionally, there are four central forming blocks 22. The shorter side of the two sides of the central forming block 22 is defined as the first end, and the longer side is defined as the second end. The four central forming blocks 22 are respectively the first central forming block 22, the second central forming block 22, the third central forming block 22, and the fourth central forming block 22. The first central forming block 22, the second central forming block 22, the third central forming block 22, and the fourth central forming block 22 are installed on the base plate 1 along the outer diameter of the placement groove 12 from the starting end 121 to the ending end 122. The second end of the first central forming block 22 is equal in length to the first end of the second central forming block 22, the second end of the second central forming block 22 is equal in length to the first end of the third central forming block 22, and the second end of the third central forming block 22 is equal in length to the first end of the fourth central forming block 22. In this way, the carbon fiber prepreg sheet is easily attached by using multiple detachable central forming blocks 22.

[0030] refer to Figure 7 The stop forming block 21 has a first connecting groove 211 on the side near the first through hole 11. The bottom end of the first connecting groove 211 penetrates the bottom wall of the stop forming block 21, and the top end of the first connecting groove 211 is arc-shaped. The vertical distance between the top wall of the first connecting groove 211 and the top wall of the bottom plate 1 gradually decreases from the starting end 121 away from the placement groove 12 to the starting end 121 near the placement groove 12. The length of the end of the first connecting groove 211 near the first middle forming block 22 in the first direction is equal to the length of the first end of the first middle forming block 22.

[0031] refer to Figure 8The starting forming block 23 is provided with a second connecting groove 231 on the side near the first through hole 11. The bottom end of the second connecting groove 231 penetrates the bottom wall of the starting forming block 23, and the top end of the second connecting groove 231 is arc-shaped. The vertical distance between the top wall of the second connecting groove 231 and the top wall of the bottom plate 1 gradually decreases from the starting end 121 near the placement groove 12 to the starting end 121 away from the placement groove 12. The top wall of the second connecting groove 231 is connected to the top wall of the first connecting groove 211. That is, the length of the end of the second connecting groove 231 near the first connecting groove 211 in the first direction is equal to the length of the end of the first connecting groove 211 near the second connecting groove 231 in the first direction. When it is necessary to attach carbon fiber prepreg sheets, first attach the carbon fiber prepreg sheets to the placement groove 12 located directly below the starting molding block 23, then install the starting molding block 23 on the side wall of the stop molding block 21, then attach the carbon fiber prepreg sheets to the second connecting groove 231, then attach them to the first connecting groove 211, and then attach them to the side walls of the first middle molding block, the second middle molding block, the third middle molding block and the fourth middle molding block in sequence, and finally place the tail end of the carbon fiber prepreg sheets against the side wall of the stop molding block 21.

[0032] refer to Figure 5 The top plate 3 includes a plate body 31, an abutment portion 32, and a connecting portion 33, wherein: One end of the plate 31 is provided with a second through hole 311, which is coaxially arranged with the first through hole 11. The inner diameter of the second through hole 311 is equal to the inner diameter of the first through hole 11. The arrangement of the first through hole 11 and the second through hole 311 facilitates ventilation and heating.

[0033] One end of the abutment portion 32 is installed on the bottom wall of the plate 31, and the length of the abutment portion 32 in the first direction gradually decreases from the starting end 121 to the ending end 122 of the placement groove 12. The length of the abutment portion 32 in the radial direction of the second through hole 311 gradually increases from the starting end 121 to the ending end 122 of the placement groove 12. The projection of the abutment portion 32 in the first direction coincides with the projection of the placement groove 12 in the first direction. That is, the shape of the cross-section of the abutment portion 32 is the same as the shape of the placement groove 12. The bottom wall of the abutment portion 32 is the top wall of the molding cavity 4.

[0034] One end of the connecting part 33 is installed on the bottom wall of the plate 31. The length of the connecting part 33 in the first direction gradually decreases from the starting end 121 to the ending end 122 of the placement groove 12. The inner side wall of the connecting part 33 fits against the outer side wall of the abutting part 32. The projection of the connecting part 33 in the first direction coincides with the projection of the middle forming block 22 in the first direction. In this way, the top plate 3 is easily connected to the middle forming block 22 by the setting of the connecting part 33.

[0035] The plate 31, connecting part 33, middle forming block 22 and base plate 1 are connected by screws. That is, the base plate 1 has multiple first screw holes, the top of each middle forming block 22 has multiple second screw holes corresponding to the first screw holes, the top of the connecting part 33 has multiple third screw holes corresponding to the first screw holes, and the top of the plate 31 has multiple fourth screw holes corresponding to the first screw holes. The screws are screwed into the corresponding first screw holes, second screw holes, third screw holes and fourth screw holes. It also includes washers, which are installed between the screws and the plate 31.

[0036] It also includes lifting rings 6, in multiple quantities, with multiple lifting rings 6 respectively installed on the base plate 1 and the plate 31, which facilitates the hoisting of the base plate 1 and the top plate 3.

[0037] It also includes a first support plate 7 and a second support plate 71, wherein: There are two first support plates 7, both of which are installed on the base plate 1, and the two first support plates 7 are symmetrically arranged with the straight line containing the axis of the first through hole 11 as the axis of symmetry.

[0038] There are two second support plates 71, both installed on the plate 31. The two second support plates 71 are symmetrically arranged with the axis of the second through hole 311 as the axis of symmetry. In this way, the symmetrical arrangement of the first support plate 71 and the second support plate 71 ensures that the mold is in a horizontal state when the carbon fiber prepreg is applied, which facilitates the application of the carbon fiber prepreg. When the mold is cured, the horizontal state ensures that the mold is heated more evenly and the temperature rise and fall are stable, reducing the probability of warping, deformation and microcracks caused by uneven heating of the mold and inconsistent curing degree inside the product during product molding.

[0039] refer to Figure 9 The clamping assembly includes three clamping blocks 5. The bottom wall of the mounting groove has an annular groove 13, the inner diameter of which is equal to the inner diameter of the first through hole 11. The three clamping blocks 5 are connected end to end and can be detachably installed in the annular groove 13. Each clamping block 5 has multiple prying slots 51 on one side. In this way, after the carbon fiber prepreg sheet is laid, the clamping assembly is pressed onto the carbon fiber prepreg sheet. Finally, the clamping blocks 5 are screwed onto the base plate 1. This not only provides plasticity to the part but also clamps the carbon fiber prepreg sheet, reducing the chance of warping. The prying slots 51 also make it easier to separate the clamping blocks 5 from the molded part.

[0040] Although the specific embodiments of the utility model have been described in detail with reference to the accompanying drawings, this should not be construed as limiting the scope of protection of this patent. Various modifications and variations that can be made by those skilled in the art without inventive effort within the scope described in the claims still fall within the scope of protection of this patent.

Claims

1. A molding die for forming spiral carbon fiber parts, characterized in that, include: The base plate (1) has a first through hole (11). One end of the base plate (1) is provided with a placement groove (12) and is coaxially arranged with the first through hole (11). The projection of the placement groove (12) in the first direction is spiral. A molding component (2) is detachably mounted on the base plate (1), and the molding component (2) surrounds the base plate (1) along the outer diameter of the placement groove (12), and the length of the molding component (2) in the first direction gradually increases from one end to the other. The top plate (3) is detachably installed on the molding component (2), and the top plate (3) and the bottom plate (1) are arranged parallel to each other. A molding cavity (4) is formed between the bottom of the placement groove (12), the inner side wall of the molding component (2) and the bottom wall of the top plate (3). The clamping assembly is detachably installed in the placement slot (12).

2. The spiral carbon fiber part forming mold according to claim 1, characterized by, The placement groove (12) includes a starting end (121) and a ending end (122). The starting end (121) and the ending end (122) coincide in the radial direction of the first through hole (11), and the length of the placement groove (12) in the radial direction of the first through hole (11) gradually increases from the starting end (121) to the ending end (122).

3. The spiral carbon fiber part forming mold according to claim 2, characterized by, The molding component (2) includes: The stop forming block (21) is detachably installed on the base plate (1), and the side wall of the stop forming block (21) and the end face of the end of the placement groove (122) are located in the same plane; There are multiple central forming blocks (22), and the multiple central forming blocks (22) are detachably arranged on the base plate (1) along the outer diameter of the placement groove (12) from the starting end (121) to the ending end (122), and the side wall of the central forming block (22) located at the ending end (122) is in contact with the side wall of the stop forming block (21); The length of the middle forming block (22) in the first direction gradually increases from the starting end (121) to the ending end (122) of the placement groove (12), and the lengths of the ends of two adjacent middle forming blocks (22) in the first direction are equal. The starting molding block (23) is detachably mounted on the stop molding block (21) and located above the end (122) of the placement groove (12).

4. The spiral carbon fiber part forming mold according to claim 3, characterized by The stop forming block (21) has a first connecting groove (211) on the side near the first through hole (11). The bottom end of the first connecting groove (211) penetrates the bottom wall of the stop forming block (21), and the top end of the first connecting groove (211) is arc-shaped. The vertical distance between the top wall of the first connecting groove (211) and the top wall of the bottom plate (1) gradually decreases from the starting end (121) away from the placement groove (12) to the starting end (121) near the placement groove (12).

5. The spiral carbon fiber part forming mold according to claim 4, characterized by The starting molding block (23) has a second connecting groove (231) on the side near the first through hole (11). The bottom end of the second connecting groove (231) penetrates the bottom wall of the starting molding block (23), and the top end of the second connecting groove (231) is arc-shaped. The vertical distance between the top wall of the second connecting groove (231) and the top wall of the bottom plate (1) gradually decreases from the starting end (121) near the placement groove (12) to the starting end (121) away from the placement groove (12). The top wall of the second connecting groove (231) is connected to the top wall of the first connecting groove (211).

6. The spiral carbon fiber part forming mold according to claim 3, wherein The top plate (3) includes: The plate (31) has a second through hole (311) at one end, which is coaxial with the first through hole (11); The abutment part (32) is installed at one end on the bottom wall of the plate (31), and the length of the abutment part (32) in the first direction gradually decreases from the starting end (121) to the ending end (122) of the placement groove (12), and the length of the abutment part (32) in the radial direction of the second through hole (311) gradually increases from the starting end (121) to the ending end (122) of the placement groove (12), and the projection of the abutment part (32) in the first direction coincides with the projection of the placement groove (12) in the first direction; The connecting part (33) is installed at one end on the bottom wall of the plate (31). The length of the connecting part (33) in the first direction gradually decreases from the starting end (121) to the ending end (122) of the placement groove (12). The inner side wall of the connecting part (33) is in contact with the outer side wall of the abutting part (32). The projection of the connecting part (33) in the first direction coincides with the projection of the plurality of middle forming blocks (22) in the first direction.

7. The spiral carbon fiber part forming mold according to claim 6, wherein The plate (31), the connecting part (33), the middle forming block (22) and the base plate (1) are connected by screws.

8. The spiral carbon fiber part forming mold according to claim 6, wherein It also includes multiple lifting rings (6), which are respectively installed on the base plate (1) and the plate body (31).

9. The spiral carbon fiber part forming mold according to claim 6, wherein Also includes: There are two first support plates (7), both of which are installed on the base plate (1), and the two first support plates (7) are symmetrically arranged with the straight line containing the axis of the first through hole (11) as the axis of symmetry. There are two second support plates (71), both of which are installed on the plate body (31), and the two second support plates (71) are symmetrically arranged with the straight line containing the axis of the second through hole (311) as the axis of symmetry.

10. The spiral carbon fiber part forming mold according to claim 1, characterized by, The clamping assembly includes three clamping blocks (5). The bottom wall of the placement groove (12) is provided with an annular groove (13). The inner diameter of the annular groove (13) is equal to the inner diameter of the first through hole (11). The three clamping blocks (5) are connected end to end and can be detachably installed in the annular groove (13). Each clamping block (5) has multiple prying grooves (51) on one side.

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