Composite thigh and shank connecting piece forming die

Abstract

The utility model belongs to the technical field of forming dies, and relates to a composite thigh and shank connecting piece forming die, which comprises a pair of dies which are buckled to form a die cavity, and any one of the pair of dies is provided with a material cavity; the first movable blocks are arranged in the material cavity in a sliding fit manner; and the at least one second movable block is movably connected between the pair of first movable blocks, the second movable block is configured to be fixed relative to the material cavity through the pair of first movable blocks, and when the second movable block is fixed relative to the material cavity, the pair of first movable blocks, the plurality of second movable blocks and the inner wall of the material cavity are enclosed to form an inner cavity. The mold can be conveniently assembled and disassembled, the mold closing difficulty is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of forming molds, and in particular relates to a forming mold for a composite material upper and lower leg connecting piece. Background Art

[0002] With the continuous development and application of composite materials, their excellent properties are gradually recognized by people, and their scope of use is becoming more and more extensive, such as artificial bones commonly used in the medical field and connectors that serve as artificial bone connections. Currently, common connectors such as upper and lower legs are usually formed in one piece with an inner lining metal part. A molding mold is required in the process. However, most of the existing molding molds use an integrated molding cavity, which is laminated into a mold after laying the material sheets. However, because the thickness of the pre-laid material is usually thick, filling it in the mold cavity can easily lead to a situation where the mold cavity is inconvenient to put into the mold, thereby reducing production efficiency. Utility Model Content

[0003] The utility model aims to provide a composite material upper and lower leg connecting piece forming die to solve the above-mentioned problems, which can facilitate assembly and disassembly, reduce the difficulty of mold closing and improve production efficiency.

[0004] To achieve the above purpose, the utility model provides the following solution: a composite material upper and lower leg connector forming mold, comprising:

[0005] A pair of molds are configured to be buckled together to form a mold cavity, and any one of the molds in the pair of molds is provided with a material cavity;

[0006] A pair of first movable blocks are respectively slidably fitted on opposite sides of the inner wall of the material cavity;

[0007] At least one second movable block is movably connected between a pair of the first movable blocks, and the second movable block is configured to be fixed relative to the material cavity through a pair of the first movable blocks, and when the second movable block is fixed relative to the material cavity, a pair of the first movable blocks and a plurality of the second movable blocks are enclosed with the inner wall of the material cavity to form an inner cavity.

[0008] Preferably, it also includes:

[0009] The limiting members are respectively arranged between the first movable block and the material cavity, and the first movable block is fixed in position with the material cavity through the limiting members.

[0010] Preferably, the limiting member comprises:

[0011] A pair of steps are fixedly connected to opposite sides of the inner wall of the material cavity, the steps cooperate with the adjacent inner wall of the material cavity to form a slide groove, and the first movable block is slidably connected with the slide groove;

[0012] A first boss is fixedly connected to the first movable block, and a groove is provided on the inner wall of the material cavity, and the first boss is slidably matched with the groove;

[0013] The second boss is fixedly connected to the first movable block, and the inner wall of the material cavity is provided with an embedding groove. The second boss is slidably matched with the embedding groove, wherein the axial direction of the embedding groove is perpendicular to the axial direction of the groove.

[0014] Preferably, the second movable block is a trapezoidal structure.

[0015] Preferably, a pair of the first movable blocks and a plurality of the second movable blocks are flush with one side away from the inner cavity.

[0016] Preferably, a guide member is provided between the pair of dies, and the pair of dies are slidably matched through the guide member.

[0017] Preferably, the guide member comprises:

[0018] There are several positioning pins, and several of the positioning pins are fixedly connected to any one of the molds relative to the four sides of the mold cavity. Another mold is provided with several positioning holes, and the positioning holes are slidably connected with the positioning pins in a one-to-one correspondence.

[0019] Preferably, the pair of molds are an upper mold and a lower mold, respectively, the lower mold is provided with the material cavity, and the material cavity is configured to be covered by a material sheet.

[0020] Preferably, a countersunk hole is provided on the inner wall surface of the material cavity, and the countersunk hole is configured to fix the lining structure on the molding die.

[0021] Compared with the prior art, the utility model has the following advantages and technical effects:

[0022] The utility model is provided with a pair of molds which form a mold cavity after being buckled. A material cavity is opened on any mold for laying pre-laid material, and a pair of first movable blocks are slidably matched in the material cavity, and the inner cavity formed in the material cavity needs to be fixedly enclosed by a pair of first movable blocks, a plurality of second movable blocks and the inner wall of the material cavity. Since the pair of first movable blocks and at least one second movable block are movably connected to each other, when the second movable blocks are fixed relative to the material cavity by the pair of first movable blocks, the pair of first movable blocks are also fixed relative to the material cavity, thereby forming an inner cavity in the material cavity. Compared with the traditional one-piece inner cavity structure, the flexibility of forming the inner cavity is improved, the situation in which the assembly efficiency is affected by the mismatch of the inner cavity is alleviated, the assembly and disassembly are convenient, the difficulty of mold closing is reduced, and the molding efficiency is accelerated. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor:

[0024] Figure 1 It is a structural schematic diagram of the upper and lower leg connecting parts;

[0025] Figure 2 It is a schematic diagram of the structure of a pair of molds;

[0026] Figure 3 Schematic diagram of the upper die structure;

[0027] Figure 4 It is a schematic diagram of the structure of the first movable block, the second movable block and the material cavity in a fixed state;

[0028] Figure 5 It is the position relationship diagram of the material sheet and the material cavity;

[0029] Figure 6 It is a structural schematic diagram of the lower mold;

[0030] Figure 7 is a schematic diagram of the structure of the first boss and the second boss;

[0031] Among them, 1. mold; 101. upper mold; 102. lower mold; 2. first movable block; 3. second movable block; 4. first boss; 5. step; 6. countersunk hole; 7. second boss; 8. lifting ring; 9. positioning pin; 10. sheet. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0034] Example: Refer to Figure 1-Figure 7 , a composite material upper and lower leg connecting piece forming mold, comprising:

[0035] A pair of molds 1 are configured to be buckled together to form a mold cavity, and a material cavity is opened on any mold 1 of the pair of molds 1;

[0036] A pair of first movable blocks 2 are slidably fitted on opposite sides of the inner wall of the material cavity;

[0037] At least one second movable block 3 is movably connected between a pair of first movable blocks 2, and the second movable block 3 is configured to be fixed relative to the material cavity through the pair of first movable blocks 2, and when the second movable block 3 is fixed relative to the material cavity, the pair of first movable blocks 2 and a plurality of second movable blocks 3 are enclosed with the inner wall of the material cavity to form an inner cavity.

[0038] The utility model is provided with a pair of molds 1 which are buckled together to form a mold cavity. It can be understood that the molding mold corresponding to the mold cavity is Figure 1 The calf and leg connecting piece structure shown is achieved by opening a material cavity on any mold 1 for laying pre-laid material, and sliding a pair of first movable blocks 2 in the material cavity, and the inner cavity formed in the material cavity needs to be fixedly enclosed by a pair of first movable blocks 2, a plurality of second movable blocks 3 and the inner wall of the material cavity. Since the pair of first movable blocks 2 and at least one second movable block 3 are movably connected to each other, when the second movable blocks 3 are fixed relative to the material cavity by a pair of first movable blocks 2, the pair of first movable blocks 2 are also fixed relative to the material cavity, thereby forming an inner cavity in the material cavity. Compared with the traditional one-piece inner cavity structure, the flexibility of forming the inner cavity is improved, the situation in which the assembly efficiency is affected by the mismatch of the inner cavity is alleviated, the assembly and disassembly is convenient, the difficulty of mold closing is reduced, and the molding efficiency is accelerated.

[0039] Furthermore, it also includes:

[0040] The limiting members are respectively arranged between the first movable block 2 and the material cavity, and the first movable block 2 is fixed to the material cavity by the limiting members.

[0041] Furthermore, the second movable block 3 is a trapezoidal structure.

[0042] Reference Figure 4 , Figure 6 , Figure 7 The first movable block 2 is fixed to the material cavity by a limiting piece, and an extrusion effect relative to the material cavity can be formed by gravity or external force. The second movable block 3 with a trapezoidal structure is used to make the second movable block 3 fit with the adjacent first movable block 2 / second movable block 3 to form a limiting effect, and when a plurality of second movable blocks 3 are provided, it can be ensured that the end thereof away from the inner cavity is flush, thereby realizing the extrusion fixation of the second movable block 3 relative to the material cavity and fixing the first movable block 2 in the material cavity.

[0043] Furthermore, the limiting member includes:

[0044] A pair of steps 5 are fixedly connected to opposite sides of the inner wall of the material cavity, and a pair of first movable blocks 2 are respectively provided with sliding grooves corresponding to the pair of steps 5, and the steps 5 are slidably connected with adjacent sliding grooves;

[0045] The first boss 4 is fixedly connected to the first movable block 2, and a groove is provided on the inner wall of the material cavity, and the first boss 4 is slidably matched with the groove;

[0046] The second boss 7 is fixedly connected to the first movable block 2. An embedding groove is provided on the inner wall of the material cavity. The second boss 7 is slidably matched with the embedding groove, wherein the axial direction of the embedding groove is perpendicular to the axial direction of the groove.

[0047] Reference Figure 4 A pair of steps 5 are fixedly connected to the opposite sides of the inner wall of the material cavity, and the slide grooves on a pair of first movable blocks 2 are slidably matched with the steps 5 to limit the pair of first movable blocks 2, and a groove is opened on the inner wall at the bottom end of the material cavity, and the first boss 4 fixed to the first movable block 2 is slidably matched with the groove to realize the limited sliding connection between the material cavity and the first movable block 2, and then the second movable block 3 is embedded between the pair of first movable blocks 2 to form a fixation of the inner cavity relative to the material cavity. Correspondingly, the technical scheme also has a second boss 7 fixedly connected to the first movable block 2, and the axial direction of the second boss 7 is perpendicular to the first boss 4. The second boss 7 cooperates with the first boss 4 to form a clamp effect on the first movable block 2, which is limited and fixed in the slide groove of the material cavity, further improving the effect of fixing the inner cavity and accelerating the molding efficiency.

[0048] Furthermore, a pair of first movable blocks 2 and a plurality of second movable blocks 3 are flush with one side away from the inner cavity.

[0049] By aligning the first movable block 2 with the second movable block 3 on one side away from the inner cavity, the external force generated by the fastening of the mold 1 is used to squeeze the first movable block 2 and the second movable block 3. Through a pair of first movable blocks 2, an external force is formed along the two sides of the inner cavity to the middle and acts on the second movable block 3, thereby improving the fixing effect and the convenience of assembling the inner cavity of the molding mold.

[0050] Furthermore, a guide member is provided between the pair of dies 1, and the pair of dies 1 are slidably matched through the guide member.

[0051] Further, the guide member comprises:

[0052] There are a plurality of positioning pins 9 , which are fixedly connected to any one of the molds 1 around the mold cavity. Another mold 1 is provided with a plurality of positioning holes, which are slidably connected to the positioning pins 9 in a one-to-one correspondence.

[0053] By arranging a guide between a pair of molds 1 and utilizing a plurality of positioning pins 9 and positioning holes for sliding cooperation, the sliding limitation of the pair of molds 1 is achieved, thereby ensuring the molding effect and improving the assembly efficiency.

[0054] Furthermore, the pair of molds 1 are respectively an upper mold 101 and a lower mold 102, and a material cavity is opened on the lower mold 102, and the material cavity is configured to be covered by the material sheet 10. Figure 3A protruding structure is integrally formed on the upper mold 102, so that when a pair of molds 1 are buckled together, the protruding structure extends into the material cavity to form a mold cavity, thereby improving the molding efficiency.

[0055] In one embodiment of the present invention, by fixing the suspension rings 8 around the outer sides of the upper mold 101 , the positioning accuracy of the upper mold 101 and the lower mold 102 when they move toward or away from each other is further improved.

[0056] Furthermore, a countersunk hole 6 is provided on the inner wall surface of the material cavity, and the countersunk hole 6 is configured to fix the lining structure on the molding die.

[0057] Since the technical solution is directed to the structure of the thigh and calf connector with an inner lining metal part, Figure 1 Therefore, the countersunk hole 6 is provided to facilitate fixing of the lining structure, and the first movable block 2 and the second movable block 3 in the technical solution are combined to further improve the molding efficiency of the upper and lower leg connector.

[0058] Correspondingly, the present technical solution further has a second boss 7 fixedly connected in the material cavity, which not only positions the molding die through the second boss 7, but also allows a reserved hole to be directly opened on the molding die during the molding process, thereby accelerating the molding efficiency.

[0059] The working process of this embodiment is as follows:

[0060] The sheet 10 is covered on the material cavity, and the lining metal part on the forming mold is fixed in the countersunk hole 6. The sheet 10 is pre-compacted by vacuuming, and then a pair of first movable blocks 2 are slid into the material cavity along the step 5, and the second movable block 3 is placed between the pair of first movable blocks 2, and the top ends are pressed to squeeze the first and second layers of the sheet 10, and the first boss 4 and the groove are embedded to fix the pair of first movable blocks 2 and the second movable blocks 3 to the material cavity to form an inner cavity. After the inner cavity is formed, a pair of molds 1 are buckled along the positioning pins 9, and then the pair of molds 1 are driven by a press to solidify and form a film. After demolding, the molding mold is trimmed to obtain the molding mold.

[0061] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0062] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A composite material upper and lower leg connector forming mold, It is characterized in that include: A pair of molds (1) are configured to be buckled together to form a mold cavity, and any one of the molds (1) in the pair of molds (1) is provided with a material cavity; A pair of first movable blocks (2) are respectively slidably fitted on opposite sides of the inner wall of the material cavity; At least one second movable block (3) is movably connected between a pair of the first movable blocks (2), and the second movable block (3) is configured to be fixed relative to the material cavity through the pair of the first movable blocks (2), and when the second movable block (3) is fixed relative to the material cavity, the pair of the first movable blocks (2) and a plurality of the second movable blocks (3) are enclosed with the inner wall of the material cavity to form an inner cavity.

2. The composite material upper and lower leg connecting piece forming mold according to claim 1, It is characterized in that Also includes: The limiting members are respectively arranged between the first movable block (2) and the material cavity, and the first movable block (2) is fixed to the material cavity by the limiting members.

3. The composite material upper and lower leg connecting piece forming mold according to claim 2, It is characterized in that The limiting member comprises: A pair of steps (5) are respectively fixed to opposite sides of the inner wall of the material cavity, the steps (5) cooperate with the inner wall of the material cavity to form a slide groove, and the first movable block (2) is slidably connected with the adjacent slide groove; A first boss (4) is fixedly connected to the first movable block (2), and a groove is provided on the inner wall of the material cavity, and the first boss (4) is slidably matched with the groove; The second boss (7) is fixedly connected to the first movable block (2), and the inner wall of the material cavity is provided with an embedding groove. The second boss (7) is slidably matched with the embedding groove, wherein the axial direction of the embedding groove is perpendicular to the axial direction of the groove.

4. The composite material upper and lower leg connecting piece forming mold according to claim 1, Features: The second movable block (3) is a trapezoidal structure.

5. The composite material upper and lower leg connecting piece forming mold according to claim 1, Features: A pair of the first movable blocks (2) and a plurality of the second movable blocks (3) are flush with one side away from the inner cavity.

6. The composite material upper and lower leg connecting piece forming mold according to claim 1, Features: A guide member is provided between the pair of dies (1), and the pair of dies (1) are slidably matched via the guide member.

7. The composite material upper and lower leg connecting piece forming mold according to claim 6, It is characterized in that The guide member comprises: A plurality of positioning pins (9) are provided, and a plurality of the positioning pins (9) are fixedly connected to any one of the molds (1) relative to the four sides of the mold cavity. A plurality of positioning holes are opened on another mold (1), and the positioning holes are slidably connected with the positioning pins (9) in a one-to-one correspondence.

8. The composite material upper and lower leg connecting piece forming mold according to claim 1, Features: The pair of molds (1) are respectively an upper mold (101) and a lower mold (102); the lower mold (102) is provided with the material cavity, and the material cavity is configured to be covered by the material sheet (10).

9. The composite material upper and lower leg connecting piece forming mold according to claim 1, Features: The inner wall surface of the material cavity is provided with a countersunk hole (6), and the countersunk hole (6) is configured to fix the lining structure on the molding die.

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