Mouth-shaped forming die for composite product

By designing the upper and lower core molds, and combining them with mounting bolts, limiting blocks, and ejector rod slots, the problem of difficult demolding after molding of the "口"-shaped composite material products was solved, resulting in smooth surface and uniform thickness of the composite material products and improving molding efficiency.

CN224256131UActive Publication Date: 2026-05-19KAI FENG SHI XIN YA SHI YE YOU XIAN GONG SI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KAI FENG SHI XIN YA SHI YE YOU XIAN GONG SI
Filing Date
2025-06-16
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing technologies for molding □-shaped composite material products suffer from problems such as high longitudinal strength, low transverse strength, internal reinforcing material delamination, complex molding die structure, and difficulty in demolding, resulting in low molding efficiency.

Method used

By adopting an upper and lower core mold structure, combined with the design of mounting bolts, limit blocks, and ejector rod grooves, uniform molding and convenient demolding of composite material products can be achieved. The combination of inclined surface connection and ejector hole ejector rod simplifies the mold structure and improves demolding efficiency.

Benefits of technology

It achieves smooth surface and uniform thickness of composite material products, simplifies mold structure, improves molding efficiency and demolding convenience, and solves the problem of inconvenient demolding after molding.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a mouth-shaped forming die of a composite material product, which relates to the technical field of composite material product processing, and comprises an upper core die and a lower core die, the upper core die and the lower core die have the same structure, two first pins are connected in the upper core die and the lower core die, and two second pins are connected in the lower core die. The upper core mold and the lower core mold are matched with the upper outer mold and the lower outer mold to form a composite product, the forming mold is simple in structure, convenient to manufacture, firm and durable, the problems that after a square-shaped composite product is formed, the thickness of the product is not uniform, and a reinforcing material in the product has faults are solved, and the product quality is improved. The practical performance of the forming die can be improved; the ejection hole, the ejection rod and the ejection groove are matched, and the connecting face of the upper core mold and the lower core mold is the inclined face, so that the problem that after a square-shaped composite material product is formed by the forming mold, demolding is not convenient, and the product is taken out is solved, and the working efficiency of the forming mold is improved advantageously.
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Description

Technical Field

[0011] ,

[0010] ,

[0009] , ,

[0001] The utility model relates to the technical field of composite material product processing, and particularly relates to a square forming die for composite material products. Background Technique

[0002] The forming of a square composite material structure is mainly carried out by processes such as machine drawing and extrusion forming, machining forming, and bonding of two halves;

[0003] The drawing and extrusion forming has high efficiency, but for composite material products, there is a situation where the longitudinal strength is high and the transverse strength is relatively low, which is not suitable for a square structure with requirements for force in all directions;

[0004] Machining forming causes the reinforcing materials inside the composite material products to appear in a fault situation, which will cause a decline in performance and high processing costs, and is not suitable for composite material products with strength requirements;

[0005] Bonding of two halves: It is necessary to first manufacture a U-shaped composite material, and use an adhesive to connect the two halves for forming; in this method, the internal reinforcing material is a two-half structure with a complete fault, and the connection strength at the joint is relatively low;

[0006] At present, the forming of square composite material products is rather inconvenient. Most of the forming dies have a complex structure, low production efficiency, and are not convenient for the forming work of square composite material products. At the same time, it is not easy to demold and take out the products after the forming die forms the square composite material products, resulting in a low working efficiency of the forming die. Content of the Utility Model

[0007] In view of the above problems, the utility model provides a square forming die for composite material products, which solves the above problems.

[0008] To achieve the above object, the utility model provides the following technical solution: A square forming die for composite material products, including an upper core die and a lower core die. The upper core die and the lower core die have the same structure. Two first pins are connected inside the upper core die and the lower core die, and mounting bolts are connected inside the upper core die and the lower core die;

[0009] The mounting bolts connect the upper core die and the lower core die together through nuts;

[0010] One side of the upper core die and the lower core die is an inclined surface. Ejection holes are opened at the large ends of the upper core die and the lower core die. Ejection rods are threadedly connected in the ejection holes. Ejection grooves are opened at the small ends of the upper core die and the lower core die. <00^0024>Preferably, one end of the ejection rod abuts against the inside of the ejection groove, and the ejection rod cooperates with the ejection groove to separate the upper core die and the lower core die.

[0012] Preferably, two upper limit blocks are provided at the top of the upper core mold, and two lower limit blocks are provided at the bottom of the lower core mold.

[0013] Preferably, a second pin is connected inside the two upper limit blocks and the upper core mold, and a third pin is connected inside the two lower limit blocks and the lower core mold.

[0014] Preferably, the upper limit block and the lower limit block are connected by bolts and nuts.

[0015] Preferably, an upper outer mold and a lower outer mold are respectively provided outside the upper core mold and the lower core mold, and the upper outer mold and the lower outer mold are arranged between the two upper limit blocks and the two lower limit blocks.

[0016] Preferably, a fourth pin is connected inside the upper outer mold and the lower outer mold, and the upper outer mold and the lower outer mold are connected by a plurality of bolts and nuts.

[0017] Preferably, the composite material products are formed between the upper core mold and the lower core mold and the upper outer mold and the lower outer mold, and the two upper limit blocks and the two lower limit blocks limit the composite material products.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] 1. In this application, the upper core mold, the lower core mold, the upper outer mold and the lower outer mold are used in cooperation to form the composite material product, ensuring that the surface of the composite material product is smooth, and the forming mold has a simple structure, is easy to manufacture, firm and durable, achieving the effect of ensuring the thickness uniformity of the composite material product, solving the problem that after the mouth-shaped composite material product is formed, the thickness of the product is uneven and there are faults in the internal reinforcing material of the product, and is beneficial to improving the practical performance of the forming mold;

[0020] 2. In this application, through the cooperation of the ejection hole, the ejection rod and the ejection groove and the connection surface between the upper core mold and the lower core mold being an inclined surface, it is convenient to demold and take out the composite material after curing, achieving the effect of facilitating the demolding of the composite material product, solving the problem that it is not convenient to demold and take out the product after the forming mold forms the mouth-shaped composite material product, and is beneficial to improving the working efficiency of the forming mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0022] Figure 2 is a schematic diagram of the first overall sectional structure of the present utility model;

[0023] Figure 3This is a schematic diagram of the second overall cross-sectional structure of the present invention;

[0024] Figure 4 This is an exploded view of the mold structure of this utility model;

[0025] Figure 5 This is an exploded structural diagram of the upper and lower core molds of this utility model.

[0026] The diagram is labeled as follows: 1. Upper core mold; 2. Lower core mold; 3. First pin; 4. Mounting bolt; 5. Ejector hole; 6. Ejector rod; 7. Ejector groove; 8. Upper limit block; 9. Lower limit block; 10. Second pin; 11. Third pin; 12. Upper outer mold; 13. Lower outer mold; 14. Fourth pin; 15. Composite material product. Detailed Implementation

[0027] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0028] Please see Figures 1 to 5 A square-shaped forming mold for a composite material product includes an upper core mold 1 and a lower core mold 2. The upper core mold 1 and the lower core mold 2 have the same structure. The upper core mold 1 and the lower core mold 2 are internally connected by two first pins 3 and mounting bolts 4.

[0029] The mounting bolt 4 connects the upper core mold 1 and the lower core mold 2 together with the nut. When using the molding mold, the personnel use the first pin 3 to insert into the upper core mold 1 and the lower core mold 2 to position them. Then, the mounting bolt 4 is passed through the upper core mold 1 and the lower core mold 2. Next, the nut is used to cooperate with the mounting bolt 4 to connect and fix the upper core mold 1 and the lower core mold 2.

[0030] It should be noted that, since the upper core mold 1 and the lower core mold 2 have the same structure and both have beveled surfaces, when connecting and fixing the upper core mold 1 and the lower core mold 2, the two beveled surfaces should be aligned for installation and fixing.

[0031] Subsequently, the personnel installed the upper limit block 8 and the lower limit block 9;

[0032] Specifically, the second pin 10 and the third pin 11 are first used to connect and position the upper limit block 8 and the lower limit block 9 to the upper core mold 1 and the lower core mold 2, respectively. Then, the personnel use bolts and nuts to install and fix the corresponding upper limit block 8 and lower limit block 9. At this time, the upper limit block 8 and lower limit block 9 are installed and fixed on the outside of the upper core mold 1 and the lower core mold 2.

[0033] Then, personnel can use processes such as filament winding and hand lay-up molding to produce composite material products on the outside of the upper core mold 1 and the lower core mold 2, and then use the outer mold to close the mold to form the corresponding square-shaped composite material products.

[0034] It should be noted that composite material products need to be positioned between two sets of upper limit blocks 8 and lower limit blocks 9;

[0035] Finally, the personnel will close the upper outer mold 12 and the lower outer mold 13. Specifically, the upper outer mold 12 and the lower outer mold 13 will be set on one side of the upper core mold 1 and the lower core mold 2, respectively. At the same time, the upper outer mold 12 and the lower outer mold 13 will also be set between the two sets of upper limit blocks 8 and lower limit blocks 9. The upper outer mold 12 and the lower outer mold 13 will be connected and positioned by the third pin 11. Then, the personnel will use bolts and nuts to install and fix the upper outer mold 12 and the lower outer mold 13.

[0036] It should be noted that at this time, the upper outer mold 12 and the lower outer mold 13, together with the upper core mold 1 and the lower core mold 2, and the two sets of upper limit blocks 8 and lower limit blocks 9, are used to form the composite material into a square-shaped product.

[0037] Both the upper core mold 1 and the lower core mold 2 have a sloping side. Both the upper core mold 1 and the lower core mold 2 have an ejector hole 5 at their large ends. An ejector rod 6 is threaded into the ejector hole 5. Both the upper core mold 1 and the lower core mold 2 have an ejector groove 7 at their small ends.

[0038] One end of the ejector rod 6 abuts against the inside of the ejector groove 7, and the ejector rod 6 and the ejector groove 7 cooperate to separate the upper core mold 1 and the lower core mold 2.

[0039] After the composite material has cured, the composite material product is demolded and removed. Specifically, the ejector rod 6 is rotated by the operator. Because the ejector rod 6 is threadedly connected to the ejector hole 5, the ejector rod 6 will rotate and move inside the ejector hole 5. It should be further added that when the ejector rod 6 moves, one end of the ejector rod 6 will enter the ejector groove 7. Then the force of the ejector rod 6 on the ejector groove 7 will make it easier for the operator to separate the upper core mold 1 and the lower core mold 2, thereby demolding the composite material product.

[0040] Of course, it should be noted that before demolding, the upper outer mold 12 and the lower outer mold 13, as well as the upper limit block 8 and the lower limit block 9, the mounting bolt 4, the first pin 3, etc., need to be disassembled first, and then the upper core mold 1 and the lower core mold 2 can be separated and demolded.

[0041] It is important to note that both the upper core mold 1 and the lower core mold 2 are provided with ejector rods 6 and ejector slots 7. Therefore, the ejector rods 6 on the upper core mold 1 correspond to the ejector slots 7 on the lower core mold 2, and the ejector rods 6 on the lower core mold 2 correspond to the ejector slots 7 on the upper core mold 2.

[0042] The ejection groove 7 is designed to prevent damage to the ejection positions of the upper core mold 1 and the lower core mold 2 during frequent ejection and demolding. If the ejection positions of the upper core mold 1 and the lower core mold 2 are damaged, the upper core mold 1 and the lower core mold 2 will not fit together tightly, making it inconvenient for personnel to connect and install the upper core mold 1 and the lower core mold 2.

[0043] The top of the upper core mold 1 is provided with two upper limit blocks 8, and the bottom of the lower core mold 2 is provided with two lower limit blocks 9.

[0044] The two upper limit blocks 8 and the upper core mold 1 are internally connected by a second pin 10, and the two lower limit blocks 9 and the lower core mold 2 are internally connected by a third pin 11.

[0045] The upper limit block 8 and the lower limit block 9 are connected by bolts and nuts.

[0046] The upper core mold 1 and the lower core mold 2 are respectively provided with an upper outer mold 12 and a lower outer mold 13, which are located between two upper limit blocks 8 and two lower limit blocks 9.

[0047] The upper outer mold 12 and the lower outer mold 13 are internally connected by a fourth pin 14, and the upper outer mold 12 and the lower outer mold 13 are connected by several bolts and nuts.

[0048] The upper core mold 1 and the lower core mold 2 are connected to the upper outer mold 12 and the lower outer mold 13 to form a composite material product 15. Two upper limit blocks 8 and two lower limit blocks 9 restrict the composite material product 15.

[0049] When using this utility model:

[0050] First, when using the molding die, the operator positions the upper core die 1 and the lower core die 2 by inserting the first pin 3 into them. Then, the mounting bolt 4 is passed through the upper core die 1 and the lower core die 2. Next, the upper core die 1 and the lower core die 2 are connected and fixed by using the nut and the mounting bolt 4.

[0051] Next, the personnel install the upper limit block 8 and the lower limit block 9. Specifically, the second pin 10 and the third pin 11 are used to connect and position the upper limit block 8 and the lower limit block 9 to the upper core mold 1 and the lower core mold 2, respectively. Then, the personnel use bolts and nuts to install and fix the corresponding upper limit block 8 and lower limit block 9. At this time, the upper limit block 8 and the lower limit block 9 are installed and fixed on the outside of the upper core mold 1 and the lower core mold 2.

[0052] Then, personnel can produce composite material products on the outside of the upper core mold 1 and the lower core mold 2 through processes such as winding molding and hand lay-up molding. Then, the corresponding square-shaped composite material products are formed by using the outer mold. The personnel will close the upper outer mold 12 and the lower outer mold 13. Specifically, the upper outer mold 12 and the lower outer mold 13 are respectively set on one side of the upper core mold 1 and the lower core mold 2. At the same time, the upper outer mold 12 and the lower outer mold 13 are also set between the two sets of upper limit blocks 8 and lower limit blocks 9. The upper outer mold 12 and the lower outer mold 13 are connected and positioned by the third pin 11. Then, the personnel will install and fix the upper outer mold 12 and the lower outer mold 13 by using bolts and nuts.

[0053] Finally, after the composite material has cured, the composite material product is demolded and removed. Specifically, the ejector rod 6 is rotated by the operator. Because the ejector rod 6 is threadedly connected to the ejector hole 5, the ejector rod 6 will rotate and move inside the ejector hole 5. It should be further added that when the ejector rod 6 moves, one end of the ejector rod 6 will enter the ejector groove 7. Then, the force of the ejector rod 6 on the ejector groove 7 will make it easier for the operator to separate the upper core mold 1 and the lower core mold 2, thereby demolding the composite material product.

[0054] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A square-shaped forming mold for composite material products, comprising an upper core mold (1) and a lower core mold (2), wherein the upper core mold (1) and the lower core mold (2) have identical structures, characterized in that: The upper core mold (1) and the lower core mold (2) are internally connected by two first pins (3), and the upper core mold (1) and the lower core mold (2) are internally connected by mounting bolts (4); The mounting bolt (4) connects the upper core mold (1) and the lower core mold (2) together by means of a nut; One side of the upper core mold (1) and the lower core mold (2) are both inclined surfaces. The large end of the upper core mold (1) and the lower core mold (2) is provided with an ejector hole (5). An ejector rod (6) is threaded into the ejector hole (5). The small end of the upper core mold (1) and the lower core mold (2) is provided with an ejector groove (7).

2. The form mold for forming a square shape of a composite material product according to claim 1, characterized in that: One end of the ejector rod (6) abuts against the inside of the ejector groove (7), and the ejector rod (6) and the ejector groove (7) cooperate to separate the upper core mold (1) and the lower core mold (2).

3. The form mold for forming a square shape of a composite material product according to claim 1, characterized in that: The upper core mold (1) has two upper limit blocks (8) at its top, and the lower core mold (2) has two lower limit blocks (9) at its bottom.

4. The form mold for forming a square shape of a composite material product according to claim 3, characterized in that: The two upper limit blocks (8) and the upper core mold (1) are internally connected by a second pin (10), and the two lower limit blocks (9) and the lower core mold (2) are internally connected by a third pin (11).

5. The form mold for forming a square shape of a composite material product according to claim 4, characterized in that: The upper limit block (8) and the lower limit block (9) are connected by bolts and nuts.

6. The form mold for forming a square shape of a composite material product according to claim 1, characterized in that: The upper core mold (1) and the lower core mold (2) are respectively provided with an upper outer mold (12) and a lower outer mold (13), and the upper outer mold (12) and the lower outer mold (13) are disposed between two upper limit blocks (8) and two lower limit blocks (9).

7. The form mold for forming a square shape of a composite material product according to claim 6, characterized in that: The upper outer mold (12) and the lower outer mold (13) are internally connected by a fourth pin (14), and the upper outer mold (12) and the lower outer mold (13) are connected by a number of bolts and nuts.

8. A mouth-shaped forming mold for a composite material product according to claim 6, characterized in that: The upper core mold (1) and the lower core mold (2) together with the upper outer mold (12) and the lower outer mold (13) form a composite material product (15), and the two upper limit blocks (8) and the two lower limit blocks (9) restrict the composite material product (15).