Mold structure for preventing moving of fixed mold plate of three-plate mold

Abstract

The utility model relates to a mould structure for preventing a fixed mould plate of a three-plate mould from jumping, which comprises a stripper plate, the fixed mould plate and a movable mould plate, the stripper plate and the movable mould plate are respectively and fixedly connected with a drag hook for controlling the mould opening stroke, the fixed mould plate is provided with two convex elastic blocks which are arranged up and down, the drag hooks are provided with concave clamping grooves, and the convex elastic blocks are connected with the concave clamping grooves. The concave clamping grooves in the two drag hooks are symmetrically arranged and connected with the convex elastic blocks in a matched mode. According to the utility model, the design of the draw hook and the elastic block is added on the basis of the existing standard three-plate structure, so that the fixed mold plate is fixed in the convex-concave clamping grooves of the draw hook and the elastic block after the mold is opened, and the problem of jumping of the fixed mold of the three-plate mold is effectively prevented.

Description

Technical Field

[0001] The utility model relates to a three-plate fixed mold plate anti-jumping mold structure, belonging to the field of plastic product molds. Background Art

[0002] With the development of the plastics industry, plastic products are expanding and being used more and more widely in various industries, and the structure of products is becoming more and more complex. There are higher requirements for the precision matching of molds and the stability of dimensions. The complexity of products directly places higher requirements on the stability of mold structures. While simplifying the structure, how to ensure the simplicity of processing, the convenience of maintenance, and the rationality of action has become a series of research courses.

[0003] With the pursuit of quality excellence and the progress of social science and technology, the application of plastic products has become diversified in various fields, the product shape has become more complicated, and there are also typical parts with special structures. The three-plate mold plate jump has not been well solved in the mold industry. Here we need to consider the rationality and stability of the structure, the simplicity of processing and the convenience of production! How to optimize the existing structure to get a simple and cost-effective mold structure. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a mold structure for preventing a three-plate mold fixed template from jumping, so as to solve the problem of preventing a three-plate mold fixed template from jumping.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: a three-plate mold structure with a fixed mold plate to prevent jumping, including a stripper plate, a fixed mold plate, and a movable mold plate. The stripper plate and the movable mold plate are respectively fixedly connected with pull hooks for controlling the mold opening stroke, and the fixed mold plate is provided with two convex spring blocks arranged up and down, and the pull hooks are provided with concave grooves, and the concave grooves on the two pull hooks are symmetrically arranged, and the concave grooves are matched and connected with the convex spring blocks.

[0006] Preferably, a groove for fixing the draw hook is provided on the stripping plate, so that the draw hook and the stripping plate are integrated.

[0007] Preferably, a groove for fixing the draw hook is provided on the movable template, so that the draw hook and the movable template are integrated.

[0008] Preferably, two convex spring block fixing grooves are provided on the fixed template, and a spring mounting hole is provided in the convex spring block for mounting a spring and providing force for the movement of the convex spring block.

[0009] Preferably, the concave groove of the draw hook and the boss of the convex spring block are both provided with angled slopes to enable movement during mold opening and mold closing.

[0010] Preferably, when the mold is opened, the convex spring block enters the concave slot of the draw hook under the action of the spring, and is used to lock the stripper plate and the fixed template so that they cannot move forward and backward; until the draw hook on the stripper plate contacts and presses over the spring block 1 on the fixed template, so that the movable template and the fixed template are separated, and the mold is continued to be opened for a distance X, and the draw hook on the stripper plate causes the spring block 2 to be stuck in the concave slot of the draw hook to achieve the positioning of the fixed template without jumping.

[0011] The beneficial effects of the utility model are:

[0012] The utility model adds a draw hook and a spring block design on the basis of the existing standard three-plate structure, so that after the mold is opened, the fixed mold plate is fixed to the convex and concave grooves of the draw hook and the spring block, effectively preventing the problem of the fixed mold of the three-plate mold jumping. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the structural diagram of the three-plate mold fixed plate to prevent jumping (the mold is closed after the product injection is completed);

[0014] Figure 2 The schematic diagram of the enlarged structure of the bullet block is for the added retractor;

[0015] Figure 3 This is the structural diagram of the three-plate mold plate to prevent jumping (the mold is fully opened after the product injection is completed);

[0016] Figure 4 This is a schematic diagram of the fully opened mold lower draw hook and the enlarged structure of the spring block. DETAILED DESCRIPTION

[0017] In order to make the present invention more obvious and easy to understand, preferred embodiments are described in detail as follows in conjunction with the accompanying drawings.

[0018] like Figures 1 to 4 As shown, the utility model provides a three-plate mold structure with a fixed mold plate to prevent jumping, including a panel 1, a stripper plate 2, a fixed mold plate 3, a movable mold plate 4, an ejector plate 5, an ejector back plate 6, a bottom plate 7, a mold foot 8, a three-plate mold head 9, a product 10, an ejector 11, a return needle spring 12, a stripper plate hook 13, a movable mold plate hook 14, a spring block 15, a spring block 2 16, a spring 17, and a spring 2 18.

[0019] A cavity for product molding is provided between the upper die and the lower die, and an ejection system for product molding is provided between the ejector plate 5 and the lower die. The stripper plate 2 is provided with a stripper plate hook 13 for controlling the mold opening stroke, and the movable die plate 4 is provided with a movable die plate hook 14 for controlling the mold opening stroke, and the middle fixed die plate 3 is provided with a spring block 15 and a spring block 2 16 for controlling the mold opening distance.

[0020] Preferably, a groove for fixing the hook is provided on the stripping plate 2, so that the stripping plate hook 13 and the stripping plate 2 are integrated.

[0021] Preferably, a groove for fixing the draw hook is provided on the movable template 4, so that the movable template draw hook 14 and the movable template 4 are integrated.

[0022] Preferably, two spring block fixing grooves are provided on the fixed template 3 and a spring mounting hole is provided in the spring block to provide force for the spring block to move and the spring block is in a convex structure.

[0023] Preferably, a concave slot is provided on the stripper plate hook 13, and a convex spring block is provided on the fixed plate. When the mold is opened, the spring block enters the hook slot under the action of the spring, locking the stripper plate 2 and the fixed plate 3 so that they cannot move forward and backward.

[0024] Preferably, the design of the draw hook and the spring block must be convex or concave with an inclined angle, and must be able to achieve movement when the mold is opened or closed.

[0025] Preferably, the stripper plate hook 13 is fixed on the groove of the stripper plate 2, the hook 14 is fixed on the groove of the movable template 4, and the spring block 15 and the spring block 2 16 are respectively equipped with spring 17 and spring 2 18 and then fixed to the groove of the fixed template 2.

[0026] When the mold is closed, Figure 1 As shown, the movable platen hook 14 and the spring block 16 lock the fixed platen 3 and the movable platen 4 together. When the mold is opened, the stripper plate 2 drives the stripper plate hook 13 to move upward, and the movable platen hook 14 is pulled by the upper inclined surface of the spring block 15, forcing the fixed platen 3 and the movable platen 4 not to open. Figure 3 As shown, until the movement X distance reaches X0, the groove of the stripper plate hook is clamped into the fixed fixed template 3 by the spring block 2 16, and at the same time, the head of the stripper plate hook 13 presses the spring block 15 to release the fixed template 3 and the movable template 4 to open the mold, thereby solving the problem of the fixed template 3 jumping.

Claims

1. A three-plate mold structure for preventing a fixed mold plate from jumping, characterized in that: It includes a stripping plate, a fixed plate and a movable plate. The stripping plate and the movable plate are respectively fixedly connected with a pull hook for controlling the mold opening stroke. The fixed plate is provided with two convex spring blocks arranged up and down. The pull hook is provided with a concave groove, and the concave grooves on the two pull hooks are symmetrically arranged, and the concave grooves are matched and connected with the convex spring blocks.

2. The mold structure for preventing the three-plate mold from jumping according to claim 1 is characterized in that: The stripping plate is provided with a groove for fixing the draw hook, so that the draw hook and the stripping plate are integrated.

3. The mold structure for preventing the three-plate mold from jumping according to claim 1 is characterized in that: The movable template is provided with a groove for fixing the draw hook, so that the draw hook and the movable template are integrated.

4. The mold structure for preventing the three-plate mold from jumping according to claim 1 is characterized in that: The fixed template is provided with two convex spring block fixing grooves, and the convex spring block is provided with a spring mounting hole for mounting a spring and providing a force for the movement of the convex spring block.

5. The mold structure for preventing the three-plate mold from jumping according to claim 1 is characterized in that: The concave groove of the draw hook and the boss of the convex spring block are both provided with angled inclined surfaces, which can meet the requirements of movement when the mold is opened or closed.

6. The mold structure for preventing the three-plate mold from jumping according to claim 5 is characterized in that: When the mold is opened, the convex spring block enters the concave slot of the draw hook under the action of the spring, and is used to lock the stripper plate and the fixed mold plate so that they cannot move forward and backward; until the draw hook on the stripper plate contacts and presses over the spring block 1 on the fixed mold plate, so that the movable mold plate and the fixed mold plate are separated, and the mold is continued to be opened for a distance X, and the draw hook on the stripper plate causes the spring block 2 to be stuck in the concave slot of the draw hook to achieve the positioning of the fixed mold plate without jumping.

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