Anti-sticking injection mold

Abstract

The utility model discloses an anti-sticking injection mold, which relates to the technical field of injection molds, and comprises a first mold main body, the inner side of the first mold main body is provided with an embedding groove, the inner side of the embedding groove is provided with a groove mold, one side of the groove mold is provided with a shaping groove, and the inner side of the first mold main body is provided with a telescopic rod. The telescopic rod penetrates through the inner side of the groove mold, an ejection block is installed at one end of the telescopic rod, one end of the ejection block extends to the inner side of the shaping groove, and a connecting screw is installed on the inner side of the groove mold in a penetrating mode. According to the utility model, the telescopic rod is installed, the first mold main body fixes the telescopic rod at the inner side, and the size of the ejection block at the output end of the telescopic rod is consistent with that of the movable opening at the inner side of the groove mold, so that the telescopic rod can conveniently penetrate through the inner side of the groove mold, and the installation is convenient; and the molded product is ejected out, so that the product is prevented from being adhered in the mold, and demolding is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, and particularly relates to an injection mold for preventing sticking. Background Art

[0002] Injection molding, also known as injection molding, has the advantages of fast production speed, high efficiency, automated operation, a variety of flower patterns and colors, the ability to form products with simple to complex shapes and large to small sizes, precise product dimensions, easy product replacement, and the ability to form products with complex shapes. An injection mold is a mold used in the injection molding process to shape molten plastic into specific sizes and shapes.

[0003] Patent document CN210758943U discloses "an injection mold easy to dissipate heat, including a top plate, a bottom plate, a lower mold and an upper mold, and further including a base. Two relatively distributed side plates are installed on the top surface of the base. The injection mold is installed on the top surface of the base through the bottom plate and is located inside the two side plates; heat dissipation fans are respectively installed on the opposite surfaces of the two side plates; a liquid inlet pipe and a liquid outlet pipe are respectively installed on both sides of the upper mold, and a cooling flow channel communicated with both the liquid inlet pipe and the liquid outlet pipe is opened inside the upper mold".

[0004] The above-mentioned mold lacks an auxiliary ejection structure inside, is prone to product adhesion, and is not convenient for separating materials. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an injection mold for preventing sticking, so as to solve the technical problem that the existing mold lacks an auxiliary ejection structure inside, is prone to product adhesion, and is not convenient for separating materials.

[0006] To achieve the above purpose, the utility model provides the following technical solution: an injection mold for preventing sticking, including a first mold body. An embedding groove is opened inside the first mold body. A groove mold is installed inside the embedding groove. A shaping groove is opened on one side of the groove mold. A telescopic rod is installed inside the first mold body. The telescopic rod penetrates through the inside of the groove mold. A top block is installed at one end of the telescopic rod. One end of the top block extends into the inside of the shaping groove. A connecting screw is installed through the inside of the groove mold and is installed inside the first mold body.

[0007] Preferably, a feeding pipe is installed through the inside of the groove mold. A guiding groove is opened inside the feeding pipe. A sealing disc is installed at one end of the feeding pipe. A feeding port is opened inside the sealing disc. The feeding port is communicated with the guiding groove. A plug rod is installed on one side of the sealing disc. The plug rod is embedded into the inside of the feeding pipe. A fastening screw is installed through the inside of the sealing disc.

[0008] Preferably, a second mold body is movably installed on one side of the first mold body. A detachable extrusion mold is installed inside the second mold body. A threaded rod is installed inside the extrusion mold. The threaded rod is installed inside the second mold body through a thread. A protrusion is installed on one side of the extrusion mold. The protrusion is embedded inside the shaping groove. There is a shaping cavity between the shaping groove and the protrusion.

[0009] Preferably, exhaust grooves are formed outside the groove mold. One end of the exhaust groove communicates with the shaping groove.

[0010] Preferably, a support plate is installed on one side of the first mold body. An assembly screw is installed through the inside of the support plate. The assembly screw is installed inside the first mold body through a thread. The support plate is installed on one side of the second mold body through the assembly screw.

[0011] Preferably, a through hole is formed inside the support plate. A fastening screw is installed inside the support plate and the first mold body through a thread.

[0012] Preferably, a limiting groove is formed on the opposite surface of the first mold body. A guiding rod is installed on the opposite surface of the second mold body. The guiding rod is inserted inside the limiting groove.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. By installing a telescopic rod, the first mold body fixes the telescopic rod inside. The ejector block at the output end of the telescopic rod has the same size as the movable opening inside the groove mold, which facilitates the telescopic rod to pass through the inside of the groove mold and is convenient for installation. When demolding is required, the telescopic rod extends to drive the ejector block to extend out, ejecting the formed product and preventing the product from adhering to the mold, which is convenient for demolding.

[0015] 2. By installing exhaust grooves, the extrusion mold and the groove mold are spliced together. The protrusion is embedded inside the shaping groove. There is a shaping cavity between the shaping groove and the protrusion. The raw material is shaped through the shaping cavity. The exhaust grooves facilitate the discharge of gas, providing space for the entry of the raw material and avoiding the influence of too high internal air pressure on the product forming. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 2 is a cross-sectional structural schematic diagram of the present utility model;

[0018] Figure 3 is a structural schematic diagram of the groove mold of the present utility model;

[0019] Figure 4Schematic diagram of the injection tube structure of the present utility model.

[0020] In the figure: 1, the first mold body; 2, the limiting groove; 3, the telescopic rod; 4, the groove mold; 5, the connecting screw; 6, the injection tube; 7, the guiding groove; 8, the insertion rod; 9, the sealing disc; 10, the fastening screw; 11, the injection port; 12, the guiding rod; 13, the second mold body; 14, the support plate; 15, the assembly screw; 16, the through port; 17, the extrusion mold; 18, the threaded rod; 19, the exhaust groove. Specific embodiments

[0021] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0023] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , the present utility model provides an embodiment: an injection mold for preventing sticking to the mold, including a first mold body 1, an embedding groove is opened inside the first mold body 1, a groove mold 4 is installed inside the embedding groove, a shaping groove is opened on one side of the groove mold 4, a telescopic rod 3 is installed inside the first mold body 1, the telescopic rod 3 penetrates inside the groove mold 4, a top block is installed at one end of the telescopic rod 3, and one end of the top block extends into the shaping groove, a connecting screw 5 is installed through the inside of the groove mold 4, and the connecting screw 5 is installed inside the first mold body 1;

[0024] The embedding groove inside the first mold body 1 limits and supports the inner groove mold 4, facilitating the user to disassemble and install the groove mold 4. The groove mold 4 fixes the inner shaping groove, and the first mold body 1 fixes the inner telescopic rod 3. The ejector block at the output end of the telescopic rod 3 has the same size as the movable opening inside the groove mold 4, facilitating the telescopic rod 3 to pass through the inside of the groove mold 4 for easy installation. When demolding is required, the telescopic rod 3 extends to drive the ejector block to extend out, ejecting the formed product and preventing the product from sticking inside the mold, facilitating demolding.

[0025] A filling pipe 6 is installed through the inside of the groove mold 4. A guiding groove 7 is opened inside the filling pipe 6. One end of the filling pipe 6 is installed with a sealing disk 9. A filling port 11 is opened inside the sealing disk 9. The filling port 11 communicates with the guiding groove 7. A plug rod 8 is installed on one side of the sealing disk 9. The plug rod 8 is embedded inside the filling pipe 6. A fastening screw 10 is installed through the inside of the sealing disk 9;

[0026] The groove mold 4 limits and supports the inner filling pipe 6 to ensure the stability of the filling pipe 6. The filling pipe 6 is connected to the sealing disk 9 through the plug rod 8. The fastening screw 10 tightly connects the sealing disk 9 and the filling pipe 6 together to ensure the stability of the structure. The raw material is injected through the filling port 11, and the raw material is guided by the guiding groove 7 to be transmitted to the inside of the shaping groove.

[0027] A second mold body 13 is movably installed on one side of the first mold body 1. A detachable extrusion mold 17 is installed inside the second mold body 13. A threaded rod 18 is installed inside the extrusion mold 17. The threaded rod 18 is installed inside the second mold body 13 by threading. A protrusion is installed on one side of the extrusion mold 17. The protrusion is embedded inside the shaping groove. There is a shaping cavity between the shaping groove and the protrusion. An exhaust groove 19 is opened outside the groove mold 4. One end of the exhaust groove 19 communicates with the shaping groove;

[0028] The second mold body 13 limits and supports the inner extrusion mold 17. The extrusion mold 17 is tightly connected to the second mold body 13 through the threaded rod 18 to ensure the stability of the extrusion mold 17. The extrusion mold 17 is spliced with the groove mold 4. The protrusion is embedded inside the shaping groove. There is a shaping cavity between the shaping groove and the protrusion. The raw material is shaped through the shaping cavity. The exhaust groove 19 facilitates the discharge of gas, providing space for the raw material to enter and avoiding excessive internal air pressure from affecting the product molding.

[0029] One side of the first mold body 1 is provided with a support plate 14. An assembly screw 15 is installed through the inner side of the support plate 14. The assembly screw 15 is installed inside the first mold body 1 by means of threads. The support plate 14 is installed on one side of the second mold body 13 through the assembly screw 15. A through hole 16 is formed in the inner side of the support plate 14. A fastening screw 10 is installed inside the support plate 14 and the first mold body 1 by means of threads. The fastening screw passes through the through hole 16 on the inner side of the support plate 14, and the support plate 14 is installed inside the injection molding machine through the screw.

[0030] A limiting groove 2 is formed on the opposite surface of the first mold body 1. A guide rod 12 is installed on the opposite surface of the second mold body 13. The guide rod 12 is inserted into the inner side of the limiting groove 2.

[0031] When the first mold body 1 and the second mold body 13 are closed together, the guide rod 12 is inserted into the inner side of the limiting groove 2.

[0032] Working principle: When the first mold body 1 and the second mold body 13 are closed together, the guide rod 12 is inserted into the inner side of the limiting groove 2. The raw material is injected through the injection port 11 and conveyed to the inside of the shaping groove by the guide groove 7. The embedding groove inside the first mold body 1 limits and supports the inner groove mold 4, which is convenient for the user to disassemble and install the groove mold 4. The groove mold 4 fixes the inner shaping groove. The first mold body 1 fixes the inner telescopic rod 3. The size of the ejector block at the output end of the telescopic rod 3 is the same as that of the movable port inside the groove mold 4, which is convenient for the telescopic rod 3 to pass through the inner side of the groove mold 4 and is convenient for installation. When demolding is required, the telescopic rod 3 extends to drive the ejector block to extend out, ejecting the formed product and preventing the product from adhering to the mold, which is convenient for demolding.

[0033] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention, and any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. An injection mold for preventing sticking to the mold, characterized in that: It includes a first mold body (1). An embedding groove is formed inside the first mold body (1). A groove mold (4) is installed inside the embedding groove. A shaping groove is formed on one side of the groove mold (4). A telescopic rod (3) is installed inside the first mold body (1). The telescopic rod (3) penetrates inside the groove mold (4). A ejecting block is installed at one end of the telescopic rod (3). One end of the ejecting block extends into the shaping groove. A connecting screw (5) is installed through the inside of the groove mold (4), and the connecting screw (5) is installed inside the first mold body (1).

2. The injection mold for preventing sticking to the mold according to claim 1, characterized in that: A feeding pipe (6) is installed through the inside of the groove mold (4). A guiding groove (7) is formed inside the feeding pipe (6). A sealing disc (9) is installed at one end of the feeding pipe (6). A feeding port (11) is formed inside the sealing disc (9). The feeding port (11) communicates with the guiding groove (7). A plug rod (8) is installed on one side of the sealing disc (9). The plug rod (8) is embedded inside the feeding pipe (6). A fastening screw (10) is installed through the inside of the sealing disc (9).

3. The injection mold for preventing sticking to the mold according to claim 1, characterized in that: A second mold body (13) is movably installed on one side of the first mold body (1). A detachable extrusion mold (17) is installed inside the second mold body (13). A threaded rod (18) is installed inside the extrusion mold (17). The threaded rod (18) is installed inside the second mold body (13) by means of threads. A protrusion is installed on one side of the extrusion mold (17). The protrusion is embedded inside the shaping groove. A shaping cavity is formed between the shaping groove and the protrusion.

4. The injection mold for preventing sticking to the mold according to claim 1, characterized in that: An exhaust groove (19) is formed outside the groove mold (4). One end of the exhaust groove (19) communicates with the shaping groove.

5. The injection mold for preventing sticking to the mold according to claim 4, wherein: A support plate (14) is installed on one side of the first mold body (1). An assembly screw (15) is installed through the inside of the support plate (14). The assembly screw (15) is installed inside the first mold body (1) by means of threads. The support plate (14) is installed on one side of the second mold body (13) by means of the assembly screw (15).

6. The injection mold for preventing sticking to the mold according to claim 5, characterized in that: A through hole (16) is formed inside the support plate (14). The fastening screw (10) is installed inside the support plate (14) and the first mold body (1) by means of threads.

7. The injection mold for preventing sticking to the mold according to claim 6, characterized in that: Limit grooves (2) are formed on the opposite surfaces of the first mold body (1). Guide rods (12) are installed on the opposite surfaces of the second mold body (13). The guide rods (12) are inserted into the limit grooves (2).

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