A multi-cavity mold core extraction structure

Abstract

This utility model discloses a core extraction structure for a multi-cavity mold, including a core fixing guide block, a hydraulic cylinder mechanism, and a hydraulic cylinder connecting block, all fixedly connected to the core. One end of the hydraulic cylinder connecting block is a T-shaped insertion block, and the other end is a C-shaped limiting groove. The T-shaped insertion block is positioned within a groove between the core fixing guide blocks. The end of the hydraulic cylinder rod of the hydraulic cylinder mechanism is vertically embedded in the C-shaped limiting groove, thereby connecting the hydraulic cylinder mechanism to the core fixing guide block. This utility model, by incorporating the hydraulic cylinder connecting block, facilitates the disassembly and installation of the hydraulic cylinder, improving production efficiency. Furthermore, the connecting block can connect hydraulic cylinder rods of different diameters, broadening its applicability.

Description

Technical Field

[0001] This utility model belongs to the field of injection molding pipe fitting mold technology, specifically relating to a core extraction structure for a multi-cavity mold. Background Technology

[0002] Injection molding refers to the process of using the extrudability and moldability of plastics to feed loose granular or powdered molding materials from the hopper of an injection molding machine into a high-temperature barrel, where they are heated, melted, and plasticized into a viscous melt. Driven by a plunger or screw under high pressure, this melt is injected at a high flow rate through a nozzle at the front of the barrel into a cooler, closed mold. After a period of pressure holding and cooling, the mold is opened, and the plastic product of a certain shape and size is ejected from the mold cavity. With the development of large-diameter, multi-cavity injection molds, hydraulic cylinders are often required to assist in the separation of the core from the product after injection molding. In large-scale multi-cavity mold production, the hydraulic cylinder connecting rod must be engaged in the groove between the core fixing guide blocks. However, the size of the groove limits the diameter of the hydraulic cylinder rod, thus limiting the selection of hydraulic cylinders and reducing production efficiency. Utility Model Content

[0003] To address the aforementioned problems, the purpose of this utility model is to provide a multi-cavity mold core extraction structure.

[0004] The specific technical solution is as follows:

[0005] A multi-cavity mold core extraction structure includes a core fixing guide block, a hydraulic cylinder mechanism, and a hydraulic cylinder connecting block, all fixedly connected to the core. One end of the hydraulic cylinder connecting block is a T-shaped insertion block, and the other end is a C-shaped limiting groove. The T-shaped insertion block is located in a groove between the core fixing guide blocks. The end of the hydraulic cylinder rod of the hydraulic cylinder mechanism is vertically embedded in the C-shaped limiting groove, thereby realizing the connection between the hydraulic cylinder mechanism and the core fixing guide block.

[0006] Furthermore, it also includes a guide rod and a baffle. One end of the guide rod passes through the core fixing guide block and is fixedly connected to the outer side fixing plate of the mold. The other end of the guide rod is fixedly connected to the baffle. There is a gap between the baffles for the hydraulic cylinder rod to pass through.

[0007] Furthermore, the hydraulic cylinder mechanism includes a hydraulic cylinder and a hydraulic cylinder fixing block. The two sides of the hydraulic cylinder fixing block are respectively fixed to the corresponding baffles. A first U-shaped groove is opened on the upper side of the hydraulic cylinder fixing block. The hydraulic cylinder fixing block is connected to the hydraulic cylinder plate at the bottom of the hydraulic cylinder. The end of the hydraulic cylinder rod passes through the first U-shaped groove and the gap between the baffles in sequence and is then embedded in the C-shaped limiting groove.

[0008] Furthermore, the hydraulic cylinder plate is provided with a second U-shaped groove on both sides. The hydraulic cylinder plate is connected to the hydraulic cylinder fixing block by fixing screws. The fixing screws pass through the second U-shaped grooves and are connected to the hydraulic cylinder fixing block.

[0009] Furthermore, the hydraulic cylinder connecting block is integrally molded.

[0010] The beneficial effects of this utility model are as follows:

[0011] 1) This utility model facilitates the disassembly and installation of hydraulic cylinders by setting a hydraulic cylinder connecting block. At the same time, the connecting block can connect hydraulic cylinder rods of different diameters, making it more widely applicable.

[0012] 2) This utility model has a U-shaped groove on the hydraulic cylinder plate, and the fixing screw moves along the U-shaped groove to ensure that the hydraulic cylinder rod can extend into the hydraulic cylinder connecting block. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention assembled on a mold;

[0014] Figure 2 This is a three-dimensional structural diagram of the present invention assembled on the mold after mold opening;

[0015] Figure 3 This is a top view of the present invention assembled on the mold after the mold is opened.

[0016] In the diagram: 1. Core fixing guide block; 2. Hydraulic cylinder mechanism; 21. Hydraulic cylinder; 22. Hydraulic cylinder plate; 221. Second U-shaped groove; 23. Hydraulic cylinder fixing block; 231. First U-shaped groove; 24. Fixing screw; 3. Hydraulic cylinder connecting block; 31. T-shaped insertion block; 32. C-shaped limit groove; 4. Guide rod; 5. Baffle. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited thereto.

[0018] like Figures 1 to 3As shown, a multi-cavity mold core extraction structure includes a core fixing guide block 1, a hydraulic cylinder mechanism 2, a hydraulic cylinder connecting block 3, a guide rod 4, and a baffle 5, all fixedly connected to the core. One end of the guide rod 4 passes through the core fixing guide block 1 and is fixedly connected to a fixing plate on the outer side of the mold. The other end of the guide rod 4 is fixedly connected to the baffle 5. A groove structure exists between the core fixing guide blocks 1 and 2. A gap is left between the baffles 5. The hydraulic cylinder connecting block 3 is integrally formed, with one end being a T-shaped insertion block 31 and the other end being a C-shaped limiting groove 32. The T-shaped insertion block 31 is disposed within the groove between the core fixing guide blocks 1. The hydraulic cylinder mechanism 2 includes a hydraulic cylinder 21 and a hydraulic cylinder fixing block 23. The two sides of the hydraulic cylinder fixing block 23 are respectively fixed on the corresponding baffles 5 on both sides. A first U-shaped groove 231 is provided on the upper side of the hydraulic cylinder fixing block 23. The two sides of the hydraulic cylinder plate 22 at the bottom of the hydraulic cylinder 21 are provided with a second U-shaped groove 221. The fixing screw 24 passes through the second U-shaped groove 221 and is connected to the hydraulic cylinder fixing block 23, thereby realizing the connection between the hydraulic cylinder fixing block 23 and the hydraulic cylinder plate 22 at the bottom of the hydraulic cylinder 21. The end of the hydraulic cylinder rod passes through the first U-shaped groove 231 and the gap between the baffles 5 in sequence and is embedded in the C-shaped limiting groove 32.

[0019] When replacing the hydraulic cylinder, the hydraulic cylinder rod is inserted vertically from top to bottom, and the end of the hydraulic cylinder rod is embedded in the C-shaped limiting groove 32. This is more convenient and efficient than directly connecting the hydraulic cylinder rod to the groove between the core fixing guide block 1.

Claims

1. A multi-cavity mold core extraction structure, characterized by, It includes a core fixing guide block (1) fixedly connected to the core, a hydraulic cylinder mechanism (2) and a hydraulic cylinder connecting block (3). One end of the hydraulic cylinder connecting block (3) is a T-shaped insert block (31) and the other end is a C-shaped limiting groove (32). The T-shaped insert block (31) is located in the groove between the core fixing guide blocks (1). The end of the hydraulic cylinder rod of the hydraulic cylinder mechanism (2) is vertically embedded in the C-shaped limiting groove (32), thereby realizing the connection between the hydraulic cylinder mechanism (2) and the core fixing guide block (1).

2. A multi-cavity mold core extraction structure as described in claim 1, wherein, It also includes a guide rod (4) and a baffle (5). One end of the guide rod (4) passes through the core fixing guide block (1) and is fixedly connected to the outer side fixing plate of the mold. The other end of the guide rod (4) is fixedly connected to the baffle (5). There is a gap between the baffle (5) for the hydraulic cylinder rod to pass through.

3. A multi-cavity mold core extraction structure as defined in claim 2, wherein, The hydraulic cylinder mechanism (2) includes a hydraulic cylinder (21) and a hydraulic cylinder fixing block (23). The two sides of the hydraulic cylinder fixing block (23) are respectively fixed on the corresponding baffle (5). A first U-shaped groove (231) is provided on the upper side of the hydraulic cylinder fixing block (23). The hydraulic cylinder fixing block (23) is connected to the hydraulic cylinder plate (22) at the bottom of the hydraulic cylinder (21). The end of the hydraulic cylinder rod passes through the first U-shaped groove (231), the baffle (5) and the gap between the baffle (5) in sequence and is embedded in the C-shaped limiting groove (32).

4. A multi-cavity mold core extraction structure as defined in claim 3, wherein, The hydraulic cylinder plate (22) has a second U-shaped groove (221) on both sides. The hydraulic cylinder plate (22) and the hydraulic cylinder fixing block (23) are connected by fixing screws (24). The fixing screws (24) pass through the second U-shaped groove (221) and are connected to the hydraulic cylinder fixing block (23).

5. The multi-cavity mold core extraction structure as described in claim 1, characterized in that, The hydraulic cylinder connecting block (3) is integrally formed.

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