Mold for injection molding part

Abstract

The mold comprises a top mold assembly and a bottom mold assembly, a guide assembly is jointly connected between the top mold assembly and the bottom mold assembly, the top mold assembly can slide in the height direction of the guide assembly, and a first hydraulic driving unit and a second hydraulic driving unit are distributed on the two sides of the top of the bottom mold assembly correspondingly; ejector rod units are distributed on the other two sides of the top of the bottom die assembly. Through the arrangement of the first hydraulic driving unit and the second hydraulic driving unit, mold opening of the first hydraulic driving unit and the second hydraulic driving unit is firstly carried out in the mold opening process, then automatic core pulling of the ejector rod unit is achieved under the action of the mold ejecting assembly, and rapid separation of a plastic part and a mold after injection molding is achieved; and meanwhile, the injection-molded part can be ejected upwards under the action of the inclined guide rod, so that the injection-molded part can be taken out conveniently.

Description

Technical Field

[0001] The utility model relates to the field of injection molded parts, in particular to a 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, a core-pulling mold is 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 mold for injection molding parts. Utility Model Content

[0004] The purpose of the utility model is to provide a 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 mold for injection molded parts includes a top mold assembly and a bottom mold assembly, wherein a guide assembly is commonly connected between the top mold assembly and the bottom mold assembly, wherein the top mold assembly can slide along the height direction of the guide assembly, hydraulic drive unit 1 and hydraulic drive unit 2 are respectively distributed on both sides of the top of the bottom mold assembly, and ejector units are distributed on the other two sides of the top of the bottom mold assembly.

[0007] As a preferred technical solution of the present application, the hydraulic drive unit 1 includes a hydraulic cylinder installed on the outside of the bottom mold assembly, the output end of the hydraulic cylinder has a telescopic rod, and a sliding block is fixed to the outer end of the telescopic rod.

[0008] As a preferred technical solution of the present application, a core plate 1 is buckled on the surface of the sliding block, and the core plate 1 is slidably arranged inside the bottom mold assembly.

[0009] As a preferred technical solution of the present application, the structures of the hydraulic drive unit 1 and the hydraulic drive unit 2 are the same.

[0010] As a preferred technical solution of the present application, the ejector unit includes a core plate 2 slidably arranged on the outside of the bottom mold assembly, and a plurality of inclined guide rods fixed to the top mold assembly are slidably arranged inside the core plate 2.

[0011] As a preferred technical solution of the present application, the ejector unit also includes side guide rods passing through the two width directions of the core plate, and the bottom mold assembly has a groove body for the side guide rods to pull the core with the sliding ejector mold thereon.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] In the scheme of this application:

[0014] By setting up the hydraulic drive unit one and the hydraulic drive unit two, it is achieved that in the mold opening process, the hydraulic drive unit one and the hydraulic drive unit two are first opened, and then the ejector unit is automatically cored under the action of the ejector assembly, so that the plastic part and the mold are quickly separated after injection molding, and at the same time the injection molded part can be ejected upward by the action of the inclined guide rod, so that it is easy to remove. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of this application;

[0016] Figure 2 This is a schematic diagram of the disassembled structure of this application;

[0017] Figure 3 A schematic diagram of the bottom mold assembly structure of the injection mold provided in this application;

[0018] Figure 4 A schematic diagram of the bottom mold assembly structure of the injection mold provided in this application;

[0019] Figure 5 for Figure 4 The enlarged structural diagram at A in the middle;

[0020] Figure 6 for Figure 4 Enlarged structural diagram at B in the middle.

[0021] Indicated in the figure: 1. Top mold assembly; 2. Bottom mold assembly; 3. Guide assembly; 4. Hydraulic drive unit 1; 5. Hydraulic drive unit 2; 6. Ejector unit;

[0022] 51. Hydraulic cylinder; 52. Telescopic rod; 53. Sliding block; 54. Core plate 1;

[0023] 61. Core plate 2; 62. Oblique guide rod; 63. Side guide rod; 64. Trough body. 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] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the present invention to be protected, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] like Figure 1-Figure 6 As shown, a mold for injection molding comprises a top mold assembly 1 and a bottom mold assembly 2, wherein a guide assembly 3 is commonly connected between the top mold assembly 1 and the bottom mold assembly 2, wherein the top mold assembly 1 can slide along the height direction of the guide assembly 3, a hydraulic drive unit 1 4 and a hydraulic drive unit 2 5 are respectively distributed on both sides of the top of the bottom mold assembly 2, and a push rod unit 6 is distributed on the other two sides of the top of the bottom mold assembly 2; the hydraulic drive unit 1 4 comprises a hydraulic oil cylinder 51 installed on the outside of the bottom mold assembly 2, the output end of the hydraulic oil cylinder 51 has a telescopic rod 52, and the outer end of the telescopic rod 52 is fixed with a slider 53;

[0027] The surface of the slider 53 is buckled with a core plate 54, and the core plate 54 is slidably arranged inside the bottom mold assembly 2; the hydraulic drive unit 1 4 and the hydraulic drive unit 2 5 have the same structure;

[0028] The ejector unit 6 includes a core plate 61 slidably disposed on the outside of the bottom mold assembly 2, and a plurality of inclined guide rods 62 fixed to the ejector assembly 1 are slidably disposed inside the core plate 61;

[0029] The ejector unit 6 further includes a side guide rod 63 which is passed through along the width direction of the core plate 2 61 , and a groove 64 is provided on the bottom mold assembly 2 for core pulling between the side guide rod 63 and the sliding ejector mold thereon.

[0030] By setting the hydraulic drive unit 1 4 and the hydraulic drive unit 2 5, it is realized that the hydraulic drive unit 1 4 and the hydraulic drive unit 2 5 are opened first in the mold opening process, specifically, the hydraulic oil cylinder 51 is started to make the telescopic rod 52 at the output end drive the slider 53 to slide on the bottom mold assembly 2, so that the slider 53 drives the core plate 1 54 to slide. Similarly, through the synchronous sliding of the hydraulic drive unit 1 4 and the hydraulic drive unit 2 5, the two core plates 1 54 tend to slide away from each other, and the mold is opened;

[0031] Then, the top mold assembly 1 is acted upon to realize the upward movement of the inclined guide rod 62. During the movement on the inclined guide rod 62, the core plate 2 61 slidably mounted thereon is promoted to synchronously slide outward, so as to keep it away from the injection molding space on the bottom mold assembly 2, and the side guide rod 63 is used to pull the core sideways to realize the ejection and demolding of the injection molded part. In the subsequent mold closing process, the ejector unit is reset first, and then the hydraulic drive unit 1 4 and the hydraulic drive unit 2 5 are driven to reset, and then the mold closing operation is performed.

Claims

1. A mold for injection molding, characterized in that: The invention comprises a top mold assembly (1) and a bottom mold assembly (2), wherein a guide assembly (3) is commonly connected between the top mold assembly (1) and the bottom mold assembly (2), wherein the top mold assembly (1) can slide along the height direction of the guide assembly (3), a hydraulic drive unit 1 (4) and a hydraulic drive unit 2 (5) are respectively distributed on two sides of the top of the bottom mold assembly (2), and push rod units (6) are distributed on the other two sides of the top of the bottom mold assembly (2).

2. A mold for injection molding according to claim 1, characterized in that: The hydraulic drive unit 1 (4) comprises a hydraulic cylinder (51) installed on the outside of the bottom mold assembly (2), the output end of the hydraulic cylinder (51) has a telescopic rod (52), and the outer end of the telescopic rod (52) is fixed with a sliding block (53).

3. A mold for injection molding according to claim 2, characterized in that: A core plate 1 (54) is buckled onto the surface of the sliding block (53), and the core plate 1 (54) is slidably disposed inside the bottom mold assembly (2).

4. The mold for injection molding according to claim 3, characterized in that: The hydraulic drive unit 1 (4) and the hydraulic drive unit 2 (5) have the same structure.

5. The mold for injection molding according to claim 1, characterized in that: The ejector rod unit (6) comprises a second core plate (61) slidably arranged on the outside of the bottom mold assembly (2), and a plurality of inclined guide rods (62) fixed to the ejector mold assembly (1) are slidably arranged inside the second core plate (61).

6. The mold for injection molding according to claim 5, characterized in that: The ejector unit (6) further comprises a side guide rod (63) passing through the second core plate (61) in the width direction, and the bottom mold assembly (2) comprises a groove (64) for core pulling between the side guide rod (63) and the sliding ejector mold thereon.

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