Mold ejection device for injection mold

Abstract

The mold ejection device comprises a movable mold, a mounting cavity is formed in the middle of the movable mold, a connecting plate is connected to the inner side of the mounting cavity in a sliding mode, a plurality of sets of evenly-distributed ejection rods are fixedly connected to the left side wall of the connecting plate, and a push rod is fixedly connected to the middle of the right side wall of the connecting plate. A U-shaped plate is fixedly connected to the middle of the top wall of the collecting box, a lifting air cylinder is fixedly connected to the middle of the inner bottom wall of the U-shaped plate, a mounting block is fixedly connected to the output end of the lifting air cylinder, and an electric telescopic rod is fixedly connected to the middle of the bottom wall of the mounting block. According to the mold ejection device for the injection mold, after an injection part is machined, the feeding air cylinder is started, the output end of the feeding air cylinder contracts to enable the movable mold to move rightwards, in the right moving process of the movable mold, after the push rod makes contact with the right side mounting plate, the movable mold continues to move rightwards, the connecting plate is fixed, and therefore the injection part can be ejected out under the action of the ejector rod for discharging operation; the production efficiency of injection-molded parts is improved.

Description

Technical Field

[0001] This utility model relates to the field of injection mold blanking technology, specifically to a mold ejection device for injection molds. Background Technology

[0002] An injection mold is a tool for producing plastic products. It consists of several parts, including a molding cavity. During injection molding, the mold is clamped on the injection molding machine, and molten plastic is injected into the molding cavity, where it cools and solidifies. Then, the upper and lower molds separate, and the product is ejected from the cavity and removed from the mold via an ejection system. Finally, the mold closes again for the next injection. The entire injection molding process is cyclical.

[0003] In the prior art, after the product is produced by the injection mold, the ejector device demolds and unloads the product. However, during the operation of the ejector device, the product is often difficult to eject, and manual assistance is often required for unloading. This processing method reduces the production efficiency of injection molded parts. Therefore, there is a need for an ejector device for injection molds. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] This utility model discloses a mold ejection device for injection molds, including a collection box, and an auxiliary feeding mechanism is provided on the top of the collection box;

[0006] The auxiliary feeding mechanism includes a moving mold, with an installation cavity in the middle of the moving mold. A connecting plate is slidably connected to the inner side of the installation cavity. Multiple sets of evenly distributed push rods are fixedly connected to the left side wall of the connecting plate. A push rod is fixedly connected to the middle of the right side wall of the connecting plate. A spring is fixedly connected to the outer periphery of the push rod on the right side wall of the connecting plate. A U-shaped plate is fixedly connected to the middle of the top wall of the collection box. A lifting cylinder is fixedly connected to the middle of the inner bottom wall of the U-shaped plate. An installation block is fixedly connected to the output end of the lifting cylinder. An electric telescopic rod is fixedly connected to the middle of the bottom wall of the installation block. A fixing plate is fixedly connected to the output end of the electric telescopic rod. Suction cups are fixedly connected to both the front and rear ends of the middle of the right side wall of the fixing plate.

[0007] As a preferred embodiment of this utility model, the top left and right ends of the collection box are fixedly connected to mounting plates, and the right wall of the mounting plate on the left side is fixedly connected to a mold.

[0008] As a preferred embodiment of this utility model, the other end of the spring is fixedly connected to the middle of the left side wall of the right mounting plate, and the suction cup is located between the moving mold and the fixed mold.

[0009] As a preferred technical solution of this utility model, positioning holes are provided at the four corners of the left side wall of the moving mold, and guide posts are slidably connected to the inner side of each positioning hole. The guide posts are respectively fixedly connected to the four corners of the right side wall of the fixed mold.

[0010] As a preferred technical solution of this utility model, feeding cylinders are fixedly connected to the four corners of the right wall of the mounting plate on the right side, and the output ends of the feeding cylinders are respectively fixedly connected to the four corners of the right wall of the moving mold.

[0011] As a preferred technical solution of this utility model, the two sets of mounting plates are fixedly connected to the upper and lower parts and the front and rear ends of the side wall of the adjacent side, and the top rods are all connected through and slidably connected inside the moving mold.

[0012] As a preferred embodiment of this utility model, the push rod passes through and is slidably connected to the middle of the right mounting plate, and the spring is in clearance fit with the push rod.

[0013] The beneficial effects of this utility model are:

[0014] 1. The ejection device for this type of injection mold uses a feeding cylinder to move the moving mold to the right after the injection molded part is processed. During the rightward movement of the moving mold, the push rod contacts the right mounting plate and the moving mold continues to move to the right while the connecting plate is fixed. Thus, the injection molded part can be ejected for unloading under the action of the ejector rod, thereby improving the production efficiency of injection molded parts.

[0015] 2. This type of injection mold ejection device activates a lifting cylinder and an electric telescopic rod when ejection of the injection molded part fails. The output end of the lifting cylinder extends to lower the mounting block, and then the injection molded part is removed under the action of the electric telescopic rod and the suction cup, thus improving the material unloading efficiency. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a top view schematic diagram of the overall structure of a mold ejection device for injection molds according to this utility model;

[0018] Figure 2 This is a schematic diagram of the mold structure of a mold ejection device for injection molds according to this utility model;

[0019] Figure 3 This is a schematic diagram of the ejection structure of a mold ejection device for injection molds according to this utility model;

[0020] Figure 4This is a schematic diagram of the material feeding structure of a mold ejection device for injection molds according to this utility model.

[0021] In the diagram: 1. Collection box; 2. Auxiliary feeding mechanism; 3. Mounting plate; 4. Fixed mold; 5. Feeding cylinder; 6. Moving mold; 7. Positioning hole; 8. Guide post; 9. Connecting plate; 10. Push rod; 11. Push rod; 12. Spring; 13. Mounting cavity; 14. Connecting rod; 15. U-shaped plate; 16. Lifting cylinder; 17. Mounting block; 18. Electric telescopic rod; 19. Fixing plate; 20. Suction cup. Detailed Implementation

[0022] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0023] Example: Figures 1-4 As shown, the present invention provides a mold ejection device for injection molds, including a collection box 1, and an auxiliary feeding mechanism 2 is provided on the top of the collection box 1;

[0024] The auxiliary feeding mechanism 2 includes a moving mold 6. After the moving mold 6 is fitted with the fixed mold 4, injection plastic is injected into it to perform injection molding production operations. A mounting cavity 13 is provided in the middle of the moving mold 6. A connecting plate 9 is slidably connected to the inner side of the mounting cavity 13. Multiple sets of evenly distributed ejector rods 10 are fixedly connected to the left side wall of the connecting plate 9. A push rod 11 is fixedly connected to the middle of the right side wall of the connecting plate 9. The ejector rods 10 can push the injection molded part out of the moving mold 6. A spring 12 is fixedly connected to the outer periphery of the push rod 11 on the right side wall of the connecting plate 9. (Collection box) A U-shaped plate 15 is fixedly connected to the middle of the top wall. A lifting cylinder 16 is fixedly connected to the middle of the bottom wall of the U-shaped plate 15. During the operation of the lifting cylinder 16, the mounting block 17 can be moved up and down. The output end of the lifting cylinder 16 is fixedly connected to the mounting block 17. An electric telescopic rod 18 is fixedly connected to the middle of the bottom wall of the mounting block 17. A fixing plate 19 is fixedly connected to the output end of the electric telescopic rod 18. Suction cups 20 are fixedly connected to both the front and rear ends of the middle of the right side wall of the fixing plate 19. The suction cups 20 can adsorb the injection molded part during the extrusion process.

[0025] The top left and right ends of the collection box 1 are fixedly connected to the mounting plates 3. The right wall of the left mounting plate 3 is fixedly connected to the fixed mold 4. The other end of the spring 12 is fixedly connected to the middle of the left side wall of the right mounting plate 3. The suction cup 20 is located between the moving mold 6 and the fixed mold 4. The spring 12 can pull the connecting plate 9 after the push rod 10 has finished working, so that the push rod 10 can be reset.

[0026] Positioning holes 7 are provided at the four corners of the left side wall of the moving mold 6. Guide pillars 8 are slidably connected to the inside of the positioning holes 7. The guide pillars 8 are fixedly connected to the four corners of the right side wall of the fixed mold 4. Feeding cylinders 5 are fixedly connected to the four corners of the right side wall of the right mounting plate 3. The output ends of the feeding cylinders 5 are fixedly connected to the four corners of the right side wall of the moving mold 6. The operation of the feeding cylinders 5 can make the moving mold 6 move left and right.

[0027] Two sets of mounting plates 3 are fixedly connected to the upper and lower parts and the front and rear ends of the two sides of the side wall. The push rods 10 are both connected through and slidably inside the moving mold 6. The push rod 11 is connected through and slidably inside the middle of the right mounting plate 3. The spring 12 is clearance-fitted with the push rod 11, and the push rod 11 and the spring 12 do not interfere with each other.

[0028] Working principle: After the injection molded part is processed, the feeding cylinder 5 is activated. The output end of the feeding cylinder 5 retracts, causing the moving mold 6 to move to the right. During the rightward movement of the moving mold 6, the push rod 11 contacts the right mounting plate 3, and the moving mold 6 continues to move to the right while the connecting plate 9 remains stationary. Thus, the injection molded part can be ejected under the action of the ejector rod 10 for unloading. If the ejection of the injection molded part fails, the lifting cylinder 16 and the electric telescopic rod 18 are activated. The output end of the lifting cylinder 16 extends, causing the mounting block 17 to move down. Then, under the action of the electric telescopic rod 18 and the suction cup 20, the injection molded part is removed, saving manual unloading operations and improving the processing efficiency of injection molded parts.

[0029] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mold ejection device for injection molds, comprising a collection box (1), characterized in that: The top of the collection box (1) is provided with an auxiliary feeding mechanism (2); The auxiliary feeding mechanism (2) includes a moving mold (6), a mounting cavity (13) is provided in the middle of the moving mold (6), a connecting plate (9) is slidably connected to the inner side of the mounting cavity (13), a number of evenly distributed push rods (10) are fixedly connected to the left side wall of the connecting plate (9), a push rod (11) is fixedly connected to the middle of the right side wall of the connecting plate (9), and a spring (12) is fixedly connected to the outer periphery of the push rod (11) on the right side wall of the connecting plate (9). The collection box (1 A U-shaped plate (15) is fixedly connected to the middle of the top wall. A lifting cylinder (16) is fixedly connected to the middle of the bottom wall of the U-shaped plate (15). An installation block (17) is fixedly connected to the output end of the lifting cylinder (16). An electric telescopic rod (18) is fixedly connected to the middle of the bottom wall of the installation block (17). A fixing plate (19) is fixedly connected to the output end of the electric telescopic rod (18). Suction cups (20) are fixedly connected to both the front and rear ends of the middle of the right side wall of the fixing plate (19).

2. The ejector device for injection molds according to claim 1, characterized in that, The top left and right ends of the collection box (1) are fixedly connected to the mounting plate (3), and the right wall of the mounting plate (3) on the left side is fixedly connected to the mold (4).

3. The mold ejection device for injection molds according to claim 1, characterized in that, The other end of the spring (12) is fixedly connected to the middle of the left side wall of the right mounting plate (3), and the suction cup (20) is located between the moving mold (6) and the fixed mold (4).

4. The mold ejection device for injection molds according to claim 1, characterized in that, The moving mold (6) has positioning holes (7) at the four corners of the left side wall. The positioning holes (7) are slidably connected to guide posts (8) at the inside. The guide posts (8) are fixedly connected to the four corners of the right side wall of the fixed mold (4).

5. The mold ejection device for injection molds according to claim 2, characterized in that, Feeding cylinders (5) are fixedly connected to the four corners of the right wall of the mounting plate (3) on the right side. The output ends of the feeding cylinders (5) are fixedly connected to the four corners of the right wall of the moving mold (6).

6. The mold ejection device for injection molds according to claim 2, characterized in that, The two sets of mounting plates (3) are fixedly connected to the upper and lower parts and the front and rear ends of the side wall of the two sets of mounting plates (3), and the top rods (10) are all connected through and slidably connected inside the moving mold (6).

7. The mold ejection device for injection molds according to claim 1, characterized in that, The push rod (11) passes through and is slidably connected to the middle of the right mounting plate (3), and the spring (12) is in clearance fit with the push rod (11).

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