Split type mold for injection molding part

Abstract

The split type mold comprises a lower mold body and an upper mold body, an injection molding space is formed in the center of the top of the lower mold body, split type mold ejection units are further distributed on the outer side of the injection molding space, and the multiple split type mold ejection units are jointly connected between the lower mold body and the upper mold body and used for conducting core pulling ejection on an injection molded model; telescopic guide columns are arranged at the four corners of the top of the lower die, and one ends of the telescopic guide columns are used for being connected with the upper die. Through the arrangement of the split ejection mold units, the upper mold drives the inclined ejection rods to synchronously move upwards in the mold opening process, the ejection blocks under the action of the inclined ejection rods can slide outwards, and the ejection blocks synchronously slide to synchronously link the core-pulling terminals to move through the lapping seats, so that the multiple core-pulling terminals are far away from the interior of the injection molding space; therefore, ejection of the injection-molded part is realized.

Description

Technical Field

[0001] The utility model relates to the field of injection molded parts, in particular to a split mold for injection molded parts. Background Art

[0002] Injection molding is a method of producing industrial products. Products usually use rubber injection molding and plastic injection molding. Injection molding can also be divided into injection molding and die casting. Injection molding machine (referred to as injection machine or injection molding machine) is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting materials. Injection molding is achieved through injection molding machines and molds.

[0003] In the injection molding process, core-pulling molds are usually involved. The core-pulling mold is designed to allow the mold to be well separated from the buckle of the injection molded part after the actual injection molding is completed, so as to realize the top mold material removal action. For this reason, we propose a split mold for injection molding parts. Utility Model Content

[0004] The purpose of the utility model is to provide a split mold for injection molding, which solves the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] A split mold for injection molded parts comprises a lower mold and an upper mold. An injection space is arranged at the center of the top of the lower mold, and a split top mold unit is distributed outside the injection space. A plurality of the split top mold units are connected between the lower mold and the upper mold for core pulling and ejecting the injection molded model.

[0007] As a preferred technical solution of the present application, telescopic guide columns are provided at the four corners of the top of the lower mold, one end of the telescopic guide column is used to connect with the upper mold, and the upper mold can be molded or demolded with the lower mold along the height direction of the telescopic guide column under the external driving force.

[0008] As a preferred technical solution of the present application, a support column is fixed inside the lower mold, and the upper mold is slidably assembled with the top end of the support column through a through groove.

[0009] As a preferred technical solution of the present application, a spring is sleeved on the surface of the support column, one end of the spring is connected to the bottom wall of the lower mold and the other end is connected and fixed to the corresponding upper mold.

[0010] As a preferred technical solution of the present application, the split top mold unit includes a lateral support platform and a top block slidably arranged in the lateral support platform;

[0011] Wherein, an inclined ejector rod is slidably provided inside the ejector block, and one end of the inclined ejector rod is fixedly connected to the corresponding upper mold above.

[0012] As a preferred technical solution of the present application, a seat is connected to one side of the top block, and a core pulling terminal for pulling the core of the injection molded part is buckled at one end of the seat.

[0013] As a preferred technical solution of the present application, a platform is fixed to the other side of the top block relative to the seat, a driven block is fastened with bolts on the surface of the platform, and a positioning rod fastened to the lower mold is inserted on the surface of the driven block.

[0014] As a preferred technical solution of the present application, the core pulling terminals in the plurality of split top mold units are located at the edge of the injection molding space and together form a core pulling area.

[0015] In the scheme of the present application: by setting up a split top mold unit, it is achieved that during the mold opening process, the upper mold drives the inclined ejector rod to move upward synchronously, and the ejector block affected by the inclined ejector rod will slide outward, and the sliding of the ejector block will be synchronized with the linkage core pulling terminal of the seat to move, so that multiple core pulling terminals are away from the injection molding space, thereby realizing the ejection of the injection molded part and facilitating the material removal operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of this application;

[0017] Figure 2 A schematic diagram of a portion of the structure of a split mold for an injection molded part provided in this application;

[0018] Figure 3 This is a schematic diagram of the lower mold structure of this application;

[0019] Figure 4 This is a schematic diagram of the split top mold unit structure of the present application;

[0020] Figure 5 This is a schematic diagram of the disassembled structure of the split top mold unit of the present application.

[0021] Indicated in the figure: 1. Lower mold; 2. Upper mold; 3. Injection space; 4. Split top mold unit;

[0022] 11. Telescopic guide column; 12. Support column; 13. Spring;

[0023] 41. Support platform; 42. Ejector block; 43. Slanted ejector rod; 44. Seat; 45. Pull-out terminal; 46. Platform; 47. Follower block; 48. Positioning rod. DETAILED DESCRIPTION

[0024] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0025] like Figure 1-Figure 5 As shown, a split mold for injection molding comprises a lower mold 1 and an upper mold 2, an injection space 3 is provided at the center of the top of the lower mold 1, and a split top mold unit 4 is distributed outside the injection space 3, and a plurality of split top mold units 4 are connected between the lower mold 1 and the upper mold 2 for core pulling and ejecting the injection molded model;

[0026] A telescopic guide column 11 is provided at each of the four corners of the top of the lower mold 1. One end of the telescopic guide column 11 is used to connect with the upper mold 2. The upper mold 2 can be molded or demolded with the lower mold 1 along the height direction of the telescopic guide column 11 by an external driving force. A support column 12 is fixed inside the lower mold 1, and the upper mold 2 is slidably assembled with the top of the support column 12 through a through groove. A spring 13 is sleeved on the surface of the support column 12. One end of the spring 13 is connected to the bottom wall of the lower mold 1 and the other end is connected and fixed to the corresponding upper mold 2.

[0027] The split top mold unit 4 includes a lateral support platform 41 and a top block 42 slidably disposed in the lateral support platform 41;

[0028] Among them, an inclined ejector rod 43 is slidably provided inside the ejector block 42, and one end of the inclined ejector rod 43 is fixedly connected to the corresponding upper mold 2 above;

[0029] A seat 44 is connected to one side of the top block 42, and a core pulling terminal 45 for pulling the core of the injection molded part is buckled at one end of the seat 44;

[0030] A platform 46 is fixed to the other side of the top block 42 relative to the base 44, a driven block 47 is fastened with bolts on the surface of the platform 46, and a positioning rod 48 fastened to the lower mold 1 is inserted on the surface of the driven block 47;

[0031] The core-pulling terminals 45 in the multiple split top mold units 4 are located at the edge of the injection space 3 and together form a core-pulling area.

[0032] During the mold opening process of the upper mold 2 and the lower mold 1, the upper mold 2 affected by the mold opening will drive the inclined ejector rod 43 to move upward synchronously, and the ejector block affected by the inclined ejector rod 43 will slide outward, and the sliding of the ejector block 42 will be synchronized with the linkage core pulling terminal 45 through the seat 44, so that the multiple core pulling terminals 45 are away from the injection molding space, so that they are engaged and separated with the corresponding injection molded parts, and are ejected by the ejector rod to realize the material removal operation.

Claims

1. A split mold for injection molding, characterized in that: The invention comprises a lower mould (1) and an upper mould (2); an injection moulding space (3) is arranged at the centre of the top of the lower mould (1); and a split top mould unit (4) is arranged outside the injection moulding space (3); a plurality of split top mould units (4) are connected between the lower mould (1) and the upper mould (2) for core ejection of the injection moulded model.

2. A split mold for injection molding according to claim 1, characterized in that: Telescopic guide columns (11) are provided at the four corners of the top of the lower mold (1), one end of the telescopic guide column (11) is used to connect with the upper mold (2), and the upper mold (2) can be molded or demolded with the lower mold (1) along the height direction of the telescopic guide column (11) under the influence of external driving force.

3. A split mold for injection molding according to claim 1, characterized in that: A support column (12) is fixed inside the lower mold (1), and the upper mold (2) is slidably assembled with the top end of the support column (12) via a through groove.

4. A split mold for injection molding according to claim 3, characterized in that: A spring (13) is sleeved on the surface of the support column (12); one end of the spring (13) is connected to the bottom wall of the lower mold (1) and the other end is connected and fixed to the corresponding upper mold (2).

5. The split mold for injection molding according to claim 1, characterized in that: The split top mold unit (4) comprises a lateral support platform (41) and a top block (42) slidably arranged in the lateral support platform (41); A tilted ejector rod (43) is slidably disposed inside the ejector block (42), and one end of the tilted ejector rod (43) is fixedly connected to the corresponding upper mold (2) above.

6. A split mold for injection molding according to claim 5, characterized in that: One side of the top block (42) is connected to a mount (44), and one end of the mount (44) is buckled with a core pulling terminal (45) for pulling the core of the injection molded part.

7. A split mold for injection molding according to claim 6, characterized in that: A platform (46) is fixed to the other side of the top block (42) relative to the platform (44); a driven block (47) is fastened to the surface of the platform (46) by bolts, and a positioning rod (48) is inserted into the surface of the driven block (47) and is fastened to the lower mold (1).

8. The split mold for injection molding according to claim 7, characterized in that: The core-pulling terminals (45) in the plurality of split top mold units (4) are located at the edge of the injection molding space (3) and together enclose a core-pulling area.

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