Shell injection mold

Abstract

The utility model relates to the technical field of injection molds, and discloses a shell injection mold which is used for shell forming. Two ends of the shell are respectively provided with an interface groove and a butt joint groove, and the interface groove is communicated with the butt joint groove; the injection mold comprises a first mold base and a second mold base which are capable of opening and closing displacement. According to the shell injection mold, the first injection molding station and the second injection molding station are arranged, the first limiting block, the second limiting block and the end forming assembly are assembled into the first mold core, and meanwhile the corresponding outer wall forming assembly and the inner cavity forming assembly are selected to be assembled into the second mold core; an end forming column, an outer wall forming block and an inner cavity forming column are replaced, shells with different calibers are met, flexible machining of different calibers of interface grooves and butt joint grooves of the shells is achieved, the assembly matching requirement is lowered, the mold can adapt to different machining conditions, the whole profiling injection mold can be replaced differently, and the application range of the mold is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a shell injection mold. Background Art

[0002] An injection mold is a tool for producing plastic products. It is also a tool that gives plastic products a complete structure and precise dimensions. Injection molding is a processing method used in mass production of parts. Specifically, it refers to the process of injecting heated and melted plastic into the mold cavity under high pressure by an injection molding machine, and obtaining a molded product after cooling and solidification.

[0003] Currently, there is a shell, and both ends of the shell are respectively provided with an interface groove and a docking groove, and the interface groove is connected with the docking groove.

[0004] The interface groove and docking groove of the shell have different calibers. Generally, the mold core of the traditional injection mold adopts a relatively contoured structure. When the calibers of the interface groove and the docking groove change, it is necessary to replace a matching set of contoured molds for injection molding, which results in a small range of applicable processing conditions for the mold. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a shell injection mold to solve the problems mentioned in the above background.

[0006] The utility model provides the following technical solution: a shell injection mold, comprising: an injection mold for shell molding;

[0007] An interface groove and a docking groove are respectively formed at two ends of the shell, and the interface groove is connected to the docking groove;

[0008] The injection mold comprises a first mold base and a second mold base that are movable in opening and closing, the first mold base is provided with a first mold core, the first mold core is provided with a plurality of first injection molding stations, the second mold base is provided with a second mold core, the second mold core is provided with a plurality of second injection molding stations, an injection cavity is formed between the first injection molding station and the second injection molding station, and an injection molding assembly is installed on the first mold base;

[0009] The first injection molding station includes a first limit block, a second limit block and an end molding assembly, the first limit block and the second limit block are both installed inside the first mold core, and the end molding assembly is installed between the first limit block and the second limit block;

[0010] The second injection molding station includes two outer wall molding components and an inner cavity molding component. The two outer wall molding components and the inner cavity molding component are both installed inside the second mold core, and the inner cavity molding component is arranged between the two outer wall molding components.

[0011] Preferably, the end molding assembly includes a first center column, two fixed columns and a plurality of end molding columns, the first center column is installed inside the first mold core, the plurality of end molding columns are divided into two groups and are respectively arranged on both sides of the first center column, a partition column is arranged between two adjacent end molding columns, and the fixed column is installed on the side of the end molding column away from the first center column.

[0012] Preferably, a marking column is installed on the inner wall of the end forming column.

[0013] Preferably, the outer wall forming assembly includes a fixing seat and a fixing plate, a surface of the fixing plate is provided with a plurality of mounting grooves, and an outer wall forming block is installed on the inner wall of the mounting groove, the fixing plate is installed on the surface of the fixing seat, and the fixing seat is installed on the second mold core.

[0014] Preferably, the inner cavity molding assembly includes a second center column, two positioning columns and a plurality of molding seats, the second center column is installed inside the second mold core, the plurality of molding seats are divided into two groups and are respectively arranged on both sides of the second center column, the inner wall of each molding seat is installed with an inner cavity molding column, a guide block is arranged between two adjacent molding seats, and the positioning column is installed on the side of the molding seat away from the first center column.

[0015] Preferably, a notch forming block is provided at the top of the inner cavity forming column, and an interface forming block is connected to the top of the notch forming block.

[0016] Preferably, a flow guide is connected to the surface of the forming seat, and the flow guide is communicated with the inner wall of the forming seat.

[0017] Preferably, the injection molding assembly includes an injection molding tube, an injection molding port is opened on the top of the first mold base, the injection molding tube is installed on the inner wall of the injection molding port, and the bottom end of the injection molding tube extends to the interior of the first mold core.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The shell injection mold is provided with a first injection molding station and a second injection molding station, and a first limit block, a second limit block and an end molding component are assembled into a first mold core, and corresponding outer wall molding components and inner cavity molding components are selected and assembled into a second mold core. When it is necessary to process shells of different calibers, the end molding column, the outer wall molding block and the inner cavity molding column are replaced to meet the needs of shells of different calibers, and different calibers of interface grooves and docking grooves for connecting the shells can be flexibly processed, thereby reducing assembly and matching requirements, being adaptable to different processing conditions, and replacing a whole set of contour injection molds in different ways, thereby improving the application range of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the interface slot of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the docking groove of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the injection mold of the utility model;

[0023] Figure 4 For this utility model Figure 3 Schematic diagram of the side section structure at the middle AA position;

[0024] Figure 5 This is a schematic diagram of the structure of the first mold core of the utility model;

[0025] Figure 6 For this utility model Figure 5 Schematic diagram of the decomposed structure at B;

[0026] Figure 7 It is a schematic diagram of the exploded structure of the outer wall forming component and the inner cavity forming component of the second mold core of the utility model;

[0027] Figure 8 This is a schematic diagram of the exploded structure of the outer wall forming component of the utility model;

[0028] Fig. 9 For this utility model Figure 7 Schematic diagram of the decomposed structure at point C in the middle.

[0029] In the figure: 1, shell; 2, interface groove; 3, docking groove; 4, first mold base; 5, second mold base; 6, first mold core; 7, first injection molding station; 71, first limit block; 72, second limit block; 73, end molding assembly; 731, first center column; 732, fixed column; 733, end molding column; 734, partition column; 735, marking column; 8, second mold core; 9, second injection molding station; 91, outer wall molding assembly; 911, fixed seat; 912, fixed plate; 913, outer wall molding block; 92, inner cavity molding assembly; 921, second center column; 922, positioning column; 923, molding seat; 924, inner cavity molding column; 925, guide block; 10, injection molding assembly; 101, injection molding tube; 102, injection molding port; 11, notch molding block; 12, interface molding block; 13, guide channel. DETAILED DESCRIPTION

[0030] 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.

[0031] See also Figure 1-9 , a shell injection mold, comprising: an injection mold for molding a shell 1;

[0032] The two ends of the housing 1 are respectively provided with an interface slot 2 and a docking slot 3, and the interface slot 2 is connected to the docking slot 3;

[0033] The injection mold comprises a first mold base 4 and a second mold base 5 with opening and closing displacements, a first mold core 6 is provided on the first mold base 4, a plurality of first injection molding stations 7 are provided on the first mold core 6, a second mold base 5 is provided with a second mold core 8, a plurality of second injection molding stations 9 are provided on the second mold core 8, an injection molding cavity is formed between the first injection molding station 7 and the second injection molding station 9, and an injection molding assembly 10 is installed on the first mold base 4;

[0034] The first injection molding station 7 includes a first limit block 71, a second limit block 72 and an end molding assembly 73. The first limit block 71 and the second limit block 72 are both installed inside the first mold core 6, and the end molding assembly 73 is installed between the first limit block 71 and the second limit block 72;

[0035] The second injection molding station 9 includes two outer wall molding components 91 and an inner cavity molding component 92 . Both the outer wall molding components 91 and the inner cavity molding component 92 are installed inside the second mold core 8 , and the inner cavity molding component 92 is arranged between the two outer wall molding components 91 .

[0036] See also Figure 6 The end molding assembly 73 includes a first center column 731, two fixed columns 732 and multiple end molding columns 733. The first center column 731 is installed inside the first mold core 6. The multiple end molding columns 733 are divided into two groups and are respectively arranged on both sides of the first center column 731. A partition column 734 is arranged between two adjacent end molding columns 733. The fixed column 732 is installed on the side of the end molding column 733 away from the first center column 731. The inner wall of the end molding column 733 is installed with a marking column 735.

[0037] See also Figure 7-8 The outer wall forming component 91 includes a fixing seat 911 and a fixing plate 912. A plurality of mounting grooves are provided on the surface of the fixing plate 912, and an outer wall forming block 913 is installed on the inner wall of the mounting groove. The fixing plate 912 is installed on the surface of the fixing seat 911, and the fixing seat 911 is installed on the second mold core 8.

[0038] See also Figure 7 and Fig. 9The inner cavity molding component 92 includes a second center column 921, two positioning columns 922 and a plurality of molding seats 923. The second center column 921 is installed inside the second mold core 8. The plurality of molding seats 923 are divided into two groups and are respectively arranged on both sides of the second center column 921. An inner cavity molding column 924 is installed on the inner wall of each molding seat 923. A guide block 925 is arranged between two adjacent molding seats 923. The positioning column 922 is installed on the side of the molding seat 923 away from the first center column 731. A notch molding block 11 is arranged on the top of the inner cavity molding column 924. The top of the notch molding block 11 is connected to the interface molding block 12. The surface of the molding seat 923 is connected to the guide channel 13, and the guide channel 13 is communicated with the inner wall of the molding seat 923.

[0039] The injection molding assembly 10 includes an injection molding tube 101 . An injection molding port 102 is formed on the top of the first mold base 4 . The injection molding tube 101 is installed on the inner wall of the injection molding port 102 , and the bottom end of the injection molding tube 101 extends to the inside of the first mold core 6 .

[0040] The first center column 731, the fixed column 732, the end forming column 733, the partition column 734 and the marking column 735 are assembled into the end forming component 73 and installed on the first mold core 6 with the first limiting block 71 and the second limiting block 72 to form the first injection molding station 7. The fixed seat 911, the fixed plate 912 and the outer wall forming block 913 are assembled into the outer wall forming component 91, the second center column 921, the positioning column 922, the forming seat 923, the inner cavity forming column 924 and the guide block 925 are assembled into the inner cavity forming component 92, and the inner cavity forming component 92 is installed on the second mold core 8, and then two outer wall forming components 91 are symmetrically installed on both sides of the inner cavity forming component 92. When the first mold base 4 and the second mold base 5 are closed, The first mold core 6 and the second mold core 8 are driven to close, and an injection cavity is formed between the first injection molding station 7 and the second injection molding station 9. The injection molding equipment is connected to the injection mold through the injection port 102, and the injection liquid is introduced into the injection cavity through the injection tube 101 to form the shell 1. When the caliber sizes of the interface groove 2 and the docking groove 3 of the shell 1 change, the end molding column 733 and the marking column 735 of the end molding column 733, the outer wall molding block 913 of the outer wall molding component 91, and the molding seat 923 and the inner cavity molding column 924 of the inner cavity molding component 92 are replaced respectively to make them match the caliber sizes of the interface groove 2 and the docking groove 3. There is no need to replace the entire set of contoured injection molding molds, thereby improving the range of injection mold processing conditions.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A housing injection mold, characterized in that: include: An injection mold for molding the housing (1); An interface groove (2) and a docking groove (3) are respectively formed at two ends of the housing (1), and the interface groove (2) is in communication with the docking groove (3); The injection mold comprises a first mold base (4) and a second mold base (5) capable of opening and closing, the first mold base (4) being provided with a first mold core (6), the first mold core (6) being provided with a plurality of first injection molding stations (7), the second mold base (5) being provided with a second mold core (8), the second mold core (8) being provided with a plurality of second injection molding stations (9), an injection molding cavity being formed between the first injection molding station (7) and the second injection molding station (9), and an injection molding component (10) being installed on the first mold base (4); The first injection molding station (7) comprises a first limit block (71), a second limit block (72) and an end molding assembly (73), wherein the first limit block (71) and the second limit block (72) are both installed inside the first mold core (6), and the end molding assembly (73) is installed between the first limit block (71) and the second limit block (72); The second injection molding station (9) comprises two outer wall molding components (91) and an inner cavity molding component (92); the two outer wall molding components (91) and the inner cavity molding component (92) are both installed inside the second mold core (8), and the inner cavity molding component (92) is arranged between the two outer wall molding components (91).

2. A housing injection mold according to claim 1, characterized in that: The end molding assembly (73) comprises a first central column (731), two fixed columns (732) and a plurality of end molding columns (733); the first central column (731) is installed inside the first mold core (6); the plurality of end molding columns (733) are divided into two groups and are respectively arranged on both sides of the first central column (731); a partition column (734) is arranged between two adjacent end molding columns (733); and the fixed column (732) is installed on a side of the end molding column (733) away from the first central column (731).

3. A housing injection mold according to claim 2, characterized in that: A marking column (735) is installed on the inner wall of the end forming column (733).

4. A housing injection mold according to claim 1, characterized in that: The outer wall forming assembly (91) comprises a fixing seat (911) and a fixing plate (912); a plurality of mounting grooves are provided on the surface of the fixing plate (912); and outer wall forming blocks (913) are installed on the inner walls of the mounting grooves; the fixing plate (912) is installed on the surface of the fixing seat (911); and the fixing seat (911) is installed on the second mold core (8).

5. The housing injection mold according to claim 1, characterized in that: The inner cavity molding component (92) comprises a second central column (921), two positioning columns (922) and a plurality of molding seats (923); the second central column (921) is installed inside the second mold core (8); the plurality of molding seats (923) are divided into two groups and are respectively arranged on both sides of the second central column (921); an inner cavity molding column (924) is installed on the inner wall of each molding seat (923); a guide block (925) is arranged between two adjacent molding seats (923); and the positioning column (922) is installed on a side of the molding seat (923) away from the first central column (731).

6. A housing injection mold according to claim 5, characterized in that: A notch forming block (11) is provided at the top of the inner cavity forming column (924), and an interface forming block (12) is connected to the top of the notch forming block (11).

7. The housing injection mold according to claim 5, characterized in that: The surface of the forming seat (923) is connected to a flow guide channel (13), and the flow guide channel (13) is in communication with the inner wall of the forming seat (923).

8. The housing injection mold according to claim 1, characterized in that: The injection molding assembly (10) comprises an injection molding tube (101), the top of the first mold base (4) is provided with an injection molding port (102), the injection molding tube (101) is installed on the inner wall of the injection molding port (102), and the bottom end of the injection molding tube (101) extends to the interior of the first mold core (6).

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