Side plate injection mold

Abstract

The utility model belongs to the technical field of injection molding, and particularly relates to a side plate injection mold which comprises a mold main body, a side plate molding cavity is arranged in the mold main body, and the side plate molding cavity is used for injection molding of side plate parts; a detachable limiting ring and a detachable injection molding butt joint are arranged at an injection molding opening in the top of the injection mold; a feeding hole is formed in the center of the injection molding butt joint and communicates with the side plate forming cavity. When the injection molding head is in butt joint with the injection molding butt joint, liquid plastic output by the injection molding head can enter the side plate forming cavity through the feeding hole. The limiting ring is coaxial with the injection molding butt joint, and before the injection molding head is in butt joint with the injection molding butt joint, the injection molding head is inserted into the limiting ring in advance and guided by the limiting ring. According to the scheme, the injection molding butt joint and the limiting ring are of a replaceable structural design and can be replaced when being abraded, so that continuous use of the side plate injection mold is guaranteed, and the overall service life of the side plate injection mold is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molding, and in particular relates to a side panel injection mold. Background Art

[0002] In some products, the side panels are independent parts of the products. The side panels are generally longer or wider, but thinner. During the injection molding process of such products, the liquid plastic has greater flow resistance in the side panel molding cavity. Therefore, it is often necessary to apply a greater injection pressure to ensure the injection molding of the side panels. Under high injection pressure, in order to avoid leakage at the joint between the injection head and the mold body, a greater pressure is often required to press the injection head onto the mold body. In the long run, this can easily cause wear on the injection port at the top of the injection mold, affecting the tightness of the contact between the injection head and the mold body, and making it easy for liquid plastic to leak or lose pressure.

[0003] For this reason, it is necessary to design a side panel injection mold with replaceable consumables added to the injection port. Utility Model Content

[0004] In order to solve the above problems existing in the prior art, the present invention provides a side panel injection mold.

[0005] The technical solution adopted by the utility model is:

[0006] A side panel injection mold comprises a mold body, wherein a side panel molding cavity is arranged inside the mold body, and the side panel molding cavity is used for injection molding of the side panel parts; a detachable limiting ring and a detachable injection molding joint are arranged at the injection port at the top of the injection mold; a feeding hole is arranged at the center of the injection molding joint, and the feeding hole is connected with the side panel molding cavity; when the injection molding head is docked with the injection molding joint, the liquid plastic output by the injection molding head can enter the side panel molding cavity through the feeding hole; the limiting ring is coaxial with the injection molding joint, and before the injection molding head is docked with the injection molding joint, the injection molding head is pre-inserted into the limiting ring and guided by the limiting ring.

[0007] As an alternative or supplement to the above-mentioned side panel injection mold: the injection molding joint includes a pipe column part and an alignment cap, and the pipe column part is coaxially connected to the lower end of the alignment cap; the injection molding port is provided with a step hole matching the injection molding joint.

[0008] As an alternative or supplement to the above-mentioned side panel injection mold: a conical groove surface is arranged at the outer edge of the injection port, the injection joint is installed at the inner end of the conical groove surface, and the limit ring is installed at the outer end of the conical groove surface.

[0009] As an alternative or supplement to the above-mentioned side panel injection mold: an alignment pin is inserted into the outer side wall of the alignment cap, and an alignment groove is provided on the conical groove surface, and the alignment pin can be inserted into the alignment groove.

[0010] As an alternative or supplement to the above-mentioned side panel injection mold: a curved groove is arranged on the upper end surface of the alignment cap, and the feeding hole is arranged at the bottom of the curved groove; the lower end of the injection head is provided with a guide column part which can slide with the limit ring; the lower end of the guide column part is provided with a conical convex part which cooperates with the conical groove surface; the lower end of the conical convex part is provided with a convex surface which cooperates with the curved groove; the injection hole of the injection head is located at the lower end point of the convex surface.

[0011] As an alternative or supplement to the above-mentioned side panel injection mold: a pressure regulating cavity is arranged on the side wall of the mold body, the pressure regulating cavity is connected with the side panel molding cavity, a pressure regulating piston is arranged in the pressure regulating cavity; the pressure regulating piston is connected with a telescopic cylinder and its movement is controlled by the telescopic cylinder.

[0012] As an alternative or supplement to the above-mentioned side panel injection mold: a pressure regulating cylinder is arranged on the cavity wall of the pressure regulating cavity, and the pressure regulating piston is arranged in the pressure regulating cylinder and sealed with the pressure regulating cylinder.

[0013] As an alternative or supplement to the above-mentioned side panel injection mold: a sealing ring is arranged at the cavity opening of the pressure regulating cavity, and the ring hole diameter of the sealing ring is smaller than the outer diameter of the pressure regulating piston.

[0014] As an alternative or supplement to the above-mentioned side panel injection mold: a mounting seat block is arranged between the telescopic cylinder and the mold body, and the mounting seat block is connected to the outer wall of the mold body and the telescopic cylinder through screws.

[0015] The beneficial effect of the utility model is that the injection molding joint and the limit ring in the present solution adopt a replaceable structural design, and can be replaced when both are worn, thereby ensuring the continued use of the side panel injection mold and improving the overall service life of the side panel injection mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below.

[0017] Figure 1 It is a partial exploded structural diagram of the side panel injection mold in this scheme;

[0018] Figure 2 It is a schematic diagram of the structure of the injection molded butt joint;

[0019] Figure 3 is a partial cross-sectional view of the side panel injection mold in this scheme;

[0020] Figure 4 yes Figure 3 Schematic diagram of the structure of the local A in the middle;

[0021] Figure 5 yes Figure 3 Schematic diagram of the structure of part B in the figure.

[0022] In the figure: 1-mold body; 11-conical groove surface; 12-alignment groove; 13-pressure regulating chamber; 2-limiting ring; 3-injection molding joint; 31-pipe column; 32-alignment cap; 33-alignment pin; 34-injection hole; 35-curved groove; 4-telescopic cylinder; 41-telescopic rod; 5-mounting seat block; 6-injection molding head; 61-guide column; 62-conical convex part; 63-convex curved surface; 7-sealing ring; 8-pressure regulating cylinder; 9-pressure regulating piston. DETAILED DESCRIPTION

[0023] The technical solution in this embodiment will be clearly and completely described below in conjunction with the accompanying drawings. The described embodiments are only some of the embodiments, not all of them. Based on the embodiments in this solution, all other embodiments obtained by ordinary technicians in this field without making creative work are within the protection scope of this solution.

[0024] Example 1

[0025] like Figures 1 to 4 As shown, this embodiment designs a side panel injection mold, including a mold body 1.

[0026] A side panel molding cavity is provided inside the mold body 1, and the side panel molding cavity is used for injection molding of the side panel parts. The mold body 1 includes a movable mold body and a fixed mold body. When the movable mold body and the fixed mold body are molded together, the side panel molding cavity can be formed between the two. When the movable mold body and the fixed mold body are opened, the molding cavity can be opened, thereby facilitating the removal of the side panel parts formed by injection molding. The specific structure of the movable mold body and the fixed mold body varies with the shape of the side panel, and will not be described in detail here.

[0027] An injection port is provided at the top of the injection mold, and a detachable limiting ring 2 and a detachable injection butt joint 3 are provided at the injection port. Since the limiting ring 2 and the injection butt joint 3 often need to directly bear the pressure when the injection head 6 and the injection mold are connected during injection molding, the limiting ring 2 and the injection butt joint 3 are easily worn, and the sealing after the injection head 6 and the injection mold are connected, thereby causing pressure relief and leakage of the liquid plastic. The injection butt joint 3 and the limiting ring 2 adopt a replaceable structural design, and can be replaced when both are worn, thereby ensuring the continued use of the side panel injection mold and improving the overall service life of the side panel injection mold.

[0028] The injection molding joint 3 is provided with a feeding hole at its center, and the feeding hole is connected to the side plate molding cavity, so that when the injection molding head 6 is docked with the injection molding joint 3, the liquid plastic output by the injection molding head 6 can enter the side plate molding cavity through the feeding hole. The injection molding joint 3 includes a pipe column portion 31 and an alignment cap 32, and the pipe column portion 31 is coaxially connected to the lower end of the alignment cap 32; the injection molding port is provided with a stepped hole matching the injection molding joint 3, the small hole section of the stepped hole is plugged in with the pipe column portion 31, and the large hole section of the stepped hole is plugged in with the alignment cap 32.

[0029] A conical groove surface 11 is provided at the outer edge of the injection port, the injection molding joint 3 is installed at the inner end of the conical groove surface 11, and the limit ring 2 is installed at the outer end of the conical groove surface 11, so that the limit ring 2 is located above the injection molding joint 3, so that when the injection head is docked with the injection molding mold, the limit ring 2 can align the injection head 6 first, thereby ensuring the coaxiality of the injection head 6 and the injection molding joint 3, avoiding the injection head 6 and the injection molding joint 3 from being laterally misaligned, and causing additional wear of the injection molding joint 3; in addition, due to the design of the conical groove surface 11, it can be ensured that when there is a problem of lateral misalignment between the injection molding head 6 and the injection molding joint 3, the injection head 6 can also be corrected in the lateral position. An alignment pin 33 is inserted into the outer wall of the alignment cap 32, and an alignment groove 12 is provided on the conical groove surface 11. The alignment pin 33 can be inserted into the alignment groove 12, so that the alignment cap 32 can be installed in a more standardized manner, thereby ensuring the consistency of different injection molding joints 3 when installed on the injection mold and reducing installation errors.

[0030] The limiting ring 2 is coaxial with the injection molding joint 3. Before the injection molding head 6 is connected to the injection molding joint 3, the injection molding head 6 is pre-inserted into the limiting ring 2 and guided by the limiting ring 2. The guidance of the limiting ring 2 can improve the efficiency of the connection between the injection molding joint 3 and the injection molding head 6, and also reduce the wear of the injection molding joint 3.

[0031] The upper end surface of the alignment cap 32 is provided with a curved groove 35, and the feeding hole is provided at the bottom of the curved groove 35. The lower end of the injection head 6 is provided with a guide column 61 that can slide with the limit ring 2, and the lower end of the guide column 61 is provided with a conical convex portion 62 that matches the conical groove surface 11, and the lower end of the conical convex portion 62 is provided with a convex curved surface 63 that matches the curved groove 35; the injection hole 34 of the injection head 6 is located at the lower end point of the convex curved surface 63. When the injection head 6 is docked with the injection butt joint 3, the guide column 61 is first inserted into the limit ring 2, and then the conical convex portion 62 is fitted with the conical groove surface 11, and the convex curved surface 63 is fitted with the convex curved surface 63, and the injection hole 34 of the injection head 6 is directly opposite to the feeding hole on the injection butt joint 3, and the liquid plastic delivered from the injection hole 34 enters the injection cavity of the side plate through the feeding hole.

[0032] Example 2

[0033] like Figures 1 to 5 As shown, based on the structure of Example 1, in order to reduce the resistance of liquid plastic flowing in the side panel injection cavity, the side panel injection mold in this example is designed.

[0034] A side panel injection mold of the present embodiment includes a mold body 1, and a side panel molding cavity is arranged inside the mold body 1, and the side panel molding cavity is used for injection molding of the side panel parts; a detachable limiting ring 2 and a detachable injection molding joint 3 are arranged at the injection port at the top of the injection mold; a feeding hole is arranged at the center of the injection molding joint 3, and the feeding hole is connected with the side panel molding cavity; when the injection head 6 is docked with the injection molding joint 3, the liquid plastic output by the injection head 6 can enter the side panel molding cavity through the feeding hole; the limiting ring 2 is coaxial with the injection molding joint 3, and before the injection head 6 is docked with the injection molding joint 3, the injection head 6 is pre-inserted into the limiting ring 2 and guided by the limiting ring 2.

[0035] A pressure regulating chamber 13 is provided on the side wall of the mold body 1, and the pressure regulating chamber 13 is connected with the side plate forming chamber, so that the air in the side plate forming chamber can flow into the pressure regulating chamber 13, and a pressure regulating piston 9 is provided in the pressure regulating chamber 13; the pressure regulating piston 9 is connected with the telescopic cylinder 4 and is controlled to move by the telescopic cylinder 4. The telescopic cylinder 4 can be a telescopic cylinder or a hydraulic cylinder, and when the telescopic rod 41 of the telescopic cylinder 4 is extended, the pressure regulating piston 9 can be pushed to the bottom of the pressure regulating chamber 13, so that the air in the pressure regulating chamber 13 flows into the side plate forming chamber, and when the telescopic rod 41 of the telescopic cylinder 4 is retracted, the pressure regulating piston 9 can be pulled to the mouth of the pressure regulating chamber 13, so that the air in the pressure regulating chamber 13 flows into the side plate forming chamber.

[0036] A pressure regulating cylinder 8 is arranged on the cavity wall of the pressure regulating cavity 13, and the inner wall of the pressure regulating cylinder 8 is smooth. The pressure regulating piston 9 is arranged in the pressure regulating cylinder 8, and the pressure regulating piston 9 and the pressure regulating cylinder 8 are sealed and matched, so as to facilitate pressure regulation control.

[0037] A sealing ring 7 is provided at the cavity opening of the pressure regulating cavity 13 , and the ring hole diameter of the sealing ring 7 is smaller than the outer diameter of the pressure regulating piston 9 . The sealing ring 7 can block the pressure regulating cylinder 8 and the pressure regulating cylinder 8 , thereby preventing the pressure regulating cylinder 8 and the pressure regulating cylinder 8 from escaping from the pressure regulating cavity 13 .

[0038] A mounting block 5 is provided between the telescopic cylinder 4 and the mold body 1. The mounting block 5 is in the shape of a long block and is provided with a through hole for the telescopic rod 41 of the telescopic cylinder 4 to pass through. The mounting block 5 is fixedly connected to the outer wall of the mold body 1 by screws, and the outer shell of the telescopic cylinder 4 is also fixedly connected to the mounting block 5 by screws, so that the telescopic cylinder 4 and the mold body 1 are relatively fixed.

[0039] When the injection head 6 is docked with the injection butt joint 3, the telescopic cylinder 4 can be used to control the pressure regulating piston 9 to move, so that part of the air in the side plate molding cavity is sucked into the pressure regulating cavity 13, thereby reducing the air pressure in the side plate molding cavity and reducing the air resistance of the liquid plastic in the side plate molding cavity.

[0040] The above embodiments are merely examples for the purpose of clarifying the description, and are not intended to limit the implementation methods; it is not necessary and impossible to list all implementation methods exhaustively. However, obvious changes or modifications derived therefrom are still within the scope of protection of the present technology.

Claims

1. A side panel injection mold, characterized in that: The invention comprises a mold body (1), wherein a side panel molding cavity is arranged inside the mold body (1), and the side panel molding cavity is used for injection molding of the side panel parts; a detachable limiting ring (2) and a detachable injection molding joint (3) are arranged at the injection port at the top of the injection mold; a feeding hole is arranged at the center of the injection molding joint (3), and the feeding hole is connected with the side panel molding cavity; when the injection molding head (6) is docked with the injection molding joint (3), the liquid plastic output by the injection molding head (6) can enter the side panel molding cavity through the feeding hole; the limiting ring (2) is coaxial with the injection molding joint (3), and before the injection molding head (6) is docked with the injection molding joint (3), the injection molding head (6) is pre-inserted into the limiting ring (2) and guided by the limiting ring (2).

2. The side panel injection mold according to claim 1, characterized in that: The injection molding joint (3) comprises a pipe column portion (31) and an alignment cap (32), wherein the pipe column portion (31) is coaxially connected to the lower end of the alignment cap (32); and the injection molding port is provided with a stepped hole matching the injection molding joint (3).

3. The side panel injection mold according to claim 2, characterized in that: A conical groove surface (11) is provided at the outer edge of the injection port, the injection joint (3) is installed at the inner end of the conical groove surface (11), and the limiting ring (2) is installed at the outer end of the conical groove surface (11).

4. The side panel injection mold according to claim 3, characterized in that: An alignment pin (33) is inserted into the outer wall of the alignment cap (32), and an alignment groove (12) is provided on the conical groove surface (11), and the alignment pin (33) can be inserted into the alignment groove (12).

5. The side panel injection mold according to claim 3, characterized in that: A curved groove (35) is arranged on the upper end surface of the alignment cap (32), and a feeding hole is arranged at the bottom of the curved groove (35); a guide column portion (61) capable of slidingly cooperating with the limiting ring (2) is arranged at the lower end of the injection head (6); a conical convex portion (62) cooperating with the conical groove surface (11) is arranged at the lower end of the guide column portion (61); a convex surface (63) cooperating with the curved groove (35) is arranged at the lower end of the conical convex portion (62); and an injection hole (34) of the injection head (6) is located at the lower end point of the convex surface (63).

6. The side panel injection mold according to any one of claims 1 to 5, characterized in that: A pressure regulating cavity (13) is arranged on the side wall of the mold body (1), the pressure regulating cavity (13) is communicated with the side plate forming cavity, and a pressure regulating piston (9) is arranged in the pressure regulating cavity (13); the pressure regulating piston (9) is connected to a telescopic cylinder (4) and its movement is controlled by the telescopic cylinder (4).

7. The side panel injection mold according to claim 6, characterized in that: A pressure regulating cylinder (8) is arranged on the cavity wall of the pressure regulating cavity (13), and the pressure regulating piston (9) is arranged in the pressure regulating cylinder (8) and is sealed therewith.

8. The side panel injection mold according to claim 7, characterized in that: A sealing ring (7) is provided at the cavity opening of the pressure regulating cavity (13), and the diameter of the ring hole of the sealing ring (7) is smaller than the outer diameter of the pressure regulating piston (9).

9. The side panel injection mold according to claim 8, characterized in that: A mounting seat block (5) is provided between the telescopic cylinder (4) and the mold body (1); the mounting seat block (5) is connected to the outer wall of the mold body (1) and the telescopic cylinder (4) via screws.

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