Ejection mechanism of injection molding equipment

Abstract

The utility model discloses an ejection mechanism of injection molding equipment. The ejection mechanism comprises a supporting plate, a push plate, a first guide plate and a second guide plate, a sliding plate is arranged at the lower end of the supporting plate, and a first strip-shaped body and a second strip-shaped body are arranged in the middle of the sliding plate. A fixing plate is arranged at the lower end of the push plate, and a plurality of first thimbles and second thimbles are arranged between the push plate and the fixing plate. According to the ejection mechanism of the injection molding equipment, through power of the movable mold part during mold opening, the sliding plate is pushed twice, the sliding plate is pushed through the first guide plate for the first time and is matched with the fixed plate to eject waste materials in a runner, and the sliding plate is reversely pushed through the second guide plate for the second time and is matched with the fixed plate to eject the waste materials in the runner. Therefore, the second ejector pin is pushed by the fixing plate, the product is ejected out of the die cavity, two-time ejection is achieved, waste materials and the product are conveniently separated, the manual separation time of the product and the waste materials is saved, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the mold ejection technology, in particular to an ejection mechanism of an injection molding device. Background Art

[0002] In traditional stamping molds, products are ejected by a knockout plate. After each blanking and stamping of the product shape, the upper die part rises with the machine table surface, and the knockout plate simultaneously ejects the product from the concave die, resulting in the product being mixed with the waste material. It is difficult to separate the product and the waste material in a timely manner. It is necessary to separate the product and the waste material, which increases the separation process. Moreover, since the product and the waste material are mixed, it is difficult to achieve automatic separation, reducing the production efficiency. Summary of the Utility Model

[0003] In order to solve the defects existing in the above-mentioned prior art, the utility model provides an ejection mechanism of an injection molding device.

[0004] The technical solution of the utility model is realized as follows:

[0005] An ejection mechanism of an injection molding device, characterized by comprising:

[0006] A support plate, a sliding plate is provided at the lower end of the support plate, a strip-shaped hole is provided on the sliding plate, a bolt is provided in the strip-shaped hole, a first strip body and a second strip body are provided in the middle of the sliding plate, and the first strip body is connected to the second strip body.

[0007] A push plate, a fixing plate is provided at the lower end of the push plate, multiple first ejector pins and second ejector pins are provided between the push plate and the fixing plate, the first ejector pins and the second ejector pins are arranged at intervals, the fixing plate is provided with a first mounting hole for cooperating with the first ejector pin and a second mounting hole for cooperating with the second ejector pin, a spring is provided in the second mounting hole, the spring is located at the lower end of the second ejector pin, and the second ejector pin is provided with a strip-shaped groove for cooperating with the first strip body and a sliding port for cooperating with the second strip body.

[0008] And a first guide plate and a second guide plate arranged on both sides of the sliding plate, the first guide plate and the second guide plate are rotationally symmetrically arranged.

[0009] In the ejection mechanism of the injection molding device of the utility model, the width of the first strip body is smaller than the width of the second strip body.

[0010] In the ejection mechanism of the injection molding device of the utility model, the width of the strip-shaped groove is smaller than the width of the sliding port.

[0011] In the ejection mechanism of this injection molding device of the present utility model, the first ejector pin and the second ejector pin are composed of a first cylinder, a second cylinder, and a third cylinder. The first cylinder extends into the mold cavity. The second cylinder is located between the push plate and the sliding plate. The third cylinder is installed in the first mounting hole and / or the second mounting hole.

[0012] In the ejection mechanism of this injection molding device of the present utility model, the depth of the first mounting hole is less than the depth of the second mounting hole.

[0013] In the ejection mechanism of this injection molding device of the present utility model, both the first guiding plate and the second guiding plate are provided with a first vertical surface, a second vertical surface, and an inclined surface for connecting the first vertical surface and the second vertical surface.

[0014] Implementing the ejection mechanism of this injection molding device of the present utility model has the following beneficial effects: The ejection mechanism of this injection molding device realizes pushing the sliding plate twice through the power of the moving mold part during mold opening. The first time, the sliding plate is pushed through the first guiding plate, and the first ejector pin is cooperated with the fixed plate to eject the waste in the runner. The second time, the sliding plate is pushed in the reverse direction through the second guiding plate, so that the second ejector pin is also pushed by the fixed plate to eject the product from the mold cavity, realizing two ejections, which is convenient for separating the waste and the product, is beneficial to saving the manual separation time of the product and the waste, and improves production efficiency. Description of the Drawings

[0015] Figure 1 Structural schematic diagram of the ejection mechanism of the injection molding device of the present utility model;

[0016] Figure 2 is Figure 1 front view of;

[0017] Figure 3 is Figure 1 exploded view of;

[0018] Figure 4 is Figure 3 structural schematic diagram of the sliding plate in;

[0019] Figure 5 is Figure 3 structural schematic diagram of the fixed plate in;

[0020] Figure 6 is Figure 3 structural schematic diagram of the second ejector pin in. Detailed Embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model.

[0022] As Figures 1 to 6As shown, the ejection mechanism of this injection molding device of the utility model includes a support plate 1, a push plate 2, a first guide plate 3, and a second guide plate 4. In this application, for the simplification of the overall structure of the mold, the rest can refer to the prior art.

[0023] A sliding plate 5 is provided at the lower end of the support plate 1. The original support plate 1 is arranged at the lower end of the moving template and is used to support and fix the moving template. A strip-shaped hole 6 is provided on the sliding plate 5, and a bolt 7 is provided in the strip-shaped hole 6. The sliding plate 5 is installed on the support plate 1 through the bolt 7. When the sliding plate 5 is pushed, the sliding plate 5 can slide at the lower end of the support plate 1 through the strip-shaped hole 6.

[0024] A first strip-shaped body 8 and a second strip-shaped body 9 are provided in the middle of the sliding plate 5. The first strip-shaped body 8 is connected to the second strip-shaped body 9, and the first strip-shaped body 8 and the second strip-shaped body 9 are used to control the movement of the second ejector pin 10.

[0025] A fixed plate 11 is provided at the lower end of the push plate 2. There are multiple first ejector pins 12 and second ejector pins 10 between the push plate 2 and the fixed plate 11. The first ejector pins 12 are used to eject and break the waste in the runner, so that the waste can be disconnected from the product in the mold cavity, thereby realizing the first ejection and the second ejection. The first ejection ejects the waste, and then the second ejection ejects the product.

[0026] The first ejector pins 12 and the second ejector pins 10 are arranged at intervals. The fixed plate 11 is provided with a first mounting hole 13 that cooperates with the first ejector pins 12 and a second mounting hole 14 that cooperates with the second ejector pins 10. A spring 15 is provided in the second mounting hole 14. The spring 15 is at the lower end of the second ejector pin 10. The second ejector pin 10 is provided with a strip-shaped groove 16 that cooperates with the first strip-shaped body 8 and a sliding opening 17 that cooperates with the second strip-shaped body 9. The width of the first strip-shaped body 8 is smaller than the width of the second strip-shaped body 9. The width of the strip-shaped groove 16 is smaller than the width of the sliding opening 17.

[0027] The first ejector pins 12 and the second ejector pins 10 are composed of a first cylinder 18, a second cylinder 19, and a third cylinder 20. The first cylinder 18 extends into the mold cavity. The second cylinder 19 is located between the push plate 2 and the sliding plate 5. The third cylinder 20 is installed in the first mounting hole 13 and / or the second mounting hole 14. The depth of the first mounting hole 13 is smaller than the depth of the second mounting hole 14.

[0028] The strip-shaped groove 16 and the sliding opening 17 are provided on the second cylinder 19 of the second ejector pin 10.

[0029] The first guide plate 3 and the second guide plate 4 are arranged on both sides of the sliding plate 5, and the first guide plate 3 and the second guide plate 4 are installed on the fixed template. The first guide plate 3 and the second guide plate 4 are rotationally symmetrically arranged. Both the first guide plate 3 and the second guide plate 4 are provided with a first vertical surface 21, a second vertical surface 22, and an inclined surface 23 for connecting the first vertical surface 21 and the second vertical surface 22. The height of the first vertical surface 21 is higher than the height of the second vertical surface 22.

[0030] Although the first guide plate 3 and the second guide plate 4 are rotationally symmetrically arranged, the heights of the inclined surfaces 23 on the first guide plate 3 and the inclined surfaces 23 on the second guide plate 4 are at different heights, and the height of the inclined surface 23 on the first guide plate 3 is higher than the height of the inclined surface 23 on the second guide plate 4.

[0031] As Figure 2 shown, at this time, the first vertical surface 21 on the first guide plate 3 is in contact with the sliding plate 5, and the second vertical surface 22 on the second guide plate 4 is in contact with the sliding plate 5. At this time, the second body 9 is placed in the sliding opening 17. When the moving die part continues to be moved, the sliding plate 5 will first reach the position of the second vertical surface 22 on the first guide plate 3, and then pass through the position of the first vertical surface 21 on the second guide plate 4. Thus, the first guide plate 3 reserves a space for the sliding plate 5, facilitating the first vertical surface 21 on the second guide plate 4 to push the sliding plate 5, keeping the other end of the sliding plate 5 in contact with the second vertical surface 22 on the first guide plate 3, so that the second body 9 on the sliding plate 5 moves out of the sliding opening 17, and the first body 8 enters the sliding opening 17. And since the spring 15 is in a compressed state at this time, when the second body 9 moves out of the sliding opening 17 and the first body 8 reaches the sliding opening 17, the spring 15 will quickly eject the second ejector pin 10, so that the first body 8 enters the strip groove 16. Then, when the fixed plate 11 is continuously pushed, the first ejector pin 12 and the second ejector pin 10 can be kept moving simultaneously, and the product in the mold cavity is ejected by the second ejector pin 10 to complete the product demolding.

[0032] The above is only the preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An ejection mechanism of an injection molding device, characterized in that, Comprising: A support plate, at the lower end of the support plate there is a sliding plate, on the sliding plate there are strip-shaped holes, in the strip-shaped holes there are bolts, in the middle of the sliding plate there is a first strip-shaped body and a second strip-shaped body, and the first strip-shaped body is connected to the second strip-shaped body. A push plate, at the lower end of the push plate there is a fixing plate, between the push plate and the fixing plate there are multiple first ejector pins and second ejector pins, the first ejector pins and the second ejector pins are arranged at intervals, on the fixing plate there are a first mounting hole for cooperating with the first ejector pin and a second mounting hole for cooperating with the second ejector pin, in the second mounting hole there is a spring, the spring is at the lower end of the second ejector pin, on the second ejector pin there are a strip-shaped groove for cooperating with the first strip-shaped body and a sliding opening for cooperating with the second strip-shaped body. And a first guiding plate and a second guiding plate arranged on both sides of the sliding plate, and the first guiding plate and the second guiding plate are rotationally symmetrically arranged.

2. The ejection mechanism of the injection molding device according to claim 1, characterized in that, The width of the first strip-shaped body is smaller than the width of the second strip-shaped body.

3. The ejection mechanism of the injection molding device according to claim 1, characterized in that, The width of the strip-shaped groove is smaller than the width of the sliding opening.

4. The ejection mechanism of the injection molding device according to claim 1, characterized in that, The first ejector pin and the second ejector pin are composed of a first cylinder, a second cylinder and a third cylinder, the first cylinder extends into the mold cavity, the second cylinder is located between the push plate and the sliding plate, and the third cylinder is installed in the first mounting hole and / or the second mounting hole.

5. The ejection mechanism of the injection molding device according to claim 1, characterized in that, The depth of the first mounting hole is smaller than the depth of the second mounting hole.

6. The ejection mechanism of the injection molding device according to claim 1, characterized in that, On both the first guiding plate and the second guiding plate there are a first vertical surface, a second vertical surface and an inclined surface for connecting the first vertical surface and the second vertical surface.

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