Injection mold ejection control mechanism

Abstract

The utility model relates to the field of injection molds, and discloses an injection mold ejection control mechanism which comprises a base, a lower mold is fixedly connected to the upper surface of the base, an upper mold is arranged at the upper end of the base, a push plate is slidably connected to the inner wall of the lower mold, and a push groove is formed in the inner wall of the lower mold; two sliding rods are fixedly connected to the inner wall of each pushing groove, sliding sleeves are arranged on rod bodies of the sliding rods in a sleeving mode, two lifting rods are hinged to the lower end of each pushing plate, the other ends of the lifting rods are hinged to the sliding sleeves, and rotating sleeves are arranged on the inner walls of the pushing grooves; according to the lower mold, under the action of the electric telescopic rod, through cooperation of the fixing plate, the guide rod, the rotating sleeve, the connecting rod, the lifting rod, the sliding rod and the sliding sleeve, when the lower mold is used for molding a plastic workpiece, the push plate is driven to ascend and descend in the lower mold, the molded workpiece is conveniently ejected out of the interior of the lower mold, and the production efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of injection molds, and in particular to an ejection control mechanism for an injection mold. Background Art

[0002] With the development of industry, plastic products can be seen everywhere in people's lives. When producing plastic products, injection molds are required. An injection mold is a tool for producing plastic products. Molten plastic is injected into the mold by an injection molding machine, and after cooling and solidifying, the finished product is taken out. An injection mold usually consists of an upper mold and a lower mold;

[0003] However, after the existing injection molds form plastic workpieces, most of them require manual removal of the plastic workpieces from the inside of the mold using tools, which easily affects the production efficiency and is not convenient to use.

[0004] The above information disclosed in this background art is only used to increase the understanding of the background art of this application. Therefore, it may include prior art that is not known to those of ordinary skill in the art. Summary of the Utility Model

[0005] In order to solve the problem that it is not convenient to take out plastic workpieces after the existing injection molds form them, this application provides an ejection control mechanism for an injection mold.

[0006] The ejection control mechanism for an injection mold provided by this application adopts the following technical solutions:

[0007] An ejection control mechanism for an injection mold includes a base. The upper surface of the base is fixedly connected with a lower mold. An upper mold is arranged at the upper end of the base. A push plate is slidably connected to the inner wall of the lower mold. A push groove is formed in the inner wall of the lower mold. Two sliding rods are fixedly connected to the inner walls of the push groove. A sliding sleeve is sleeved on the rod body of the sliding rod. Two lifting rods are hingedly connected to the lower ends of the push plate. The other ends of the lifting rods are hingedly connected to the sliding sleeve. A rotating sleeve is arranged on the inner wall of the push groove. Connecting rods are rotatably connected to the outer walls on both sides of the rotating sleeve. The other ends of the connecting rods are fixedly connected to the lifting rods. An electric telescopic rod is fixedly connected to the inner wall of the push groove. A fixing plate is fixedly connected to one side of the electric telescopic rod. A guiding rod is fixedly connected to the plate body of the fixing plate. The inner wall of the rotating sleeve is slidably connected to the guiding rod.

[0008] Preferably, a plurality of pull rods are slidably connected to the inner walls of the lower mold. The lower ends of the pull rods are fixedly connected with circular ring pieces. Springs are fixedly connected to the upper ends of the circular ring pieces. The inner walls of the push grooves are fixedly connected with a plurality of springs.

[0009] Preferably, a plurality of clamping rods are fixedly connected to the inner walls of the push grooves. Two clamping blocks are fixedly connected to the outer walls of the fixing plate. The outer walls of the clamping blocks are slidably connected to the clamping rods.

[0010] Preferably, a top plate is fixedly connected to the upper end of the base, a hydraulic cylinder is fixedly connected to the upper end of the top plate, and the lower end of the hydraulic cylinder is fixedly connected to the upper mold.

[0011] Preferably, a plurality of limiting rods are slidably connected to the body of the top plate, and the lower ends of the limiting rods are fixedly connected to the upper mold.

[0012] In summary, the present application includes the following beneficial technical effects:

[0013] 1. By providing a push plate, the workpiece inside the lower mold can be ejected. Under the action of the electric telescopic rod, through the cooperation of the fixed plate, the guide rod, the rotating sleeve, the connecting rod, the lifting rod, the sliding rod and the sliding sleeve, when the lower mold forms a plastic workpiece, the push plate is driven to lift inside the lower mold, which is convenient for ejecting the formed workpiece from the inside of the lower mold, improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the whole of the application embodiment;

[0015] Figure 2 is a schematic structural diagram of the lower mold of the application embodiment;

[0016] Figure 3 is a schematic structural diagram of the electric telescopic rod of the application embodiment;

[0017] Figure 4 is a schematic structural diagram of the fixed plate of the application embodiment.

[0018] Description of the reference numerals: 1, base; 2, lower mold; 3, upper mold; 4, push plate; 5, sliding rod; 6, sliding sleeve; 7, lifting rod; 8, connecting rod; 9, rotating sleeve; 10, fixed plate; 11, guide rod; 12, electric telescopic rod; 13, positioning rod; 14, clamping block; 15, pull rod; 16, circular ring piece; 17, spring; 18, top plate; 19, hydraulic cylinder; 20, limiting rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following is a further detailed description of the present application in conjunction with the attached Figures 1-4 drawings.

[0020] An ejection control mechanism for an injection mold disclosed in an embodiment of the present application is referred to Figure 1, including a base 1. The upper surface of the base 1 is fixedly connected with a lower mold 2. An upper mold 3 is arranged at the upper end of the base 1. The plastic workpiece can be formed by the lower mold 2 and the upper mold 3. A push plate 4 is slidably connected to the inner wall of the lower mold 2. It is arranged inside the lower mold 2 and can push the formed plastic workpiece. A push groove is formed in the inner wall of the lower mold 2. Two sliding rods 5 are fixedly connected to the inner wall of the push groove. A sliding sleeve 6 is sleeved on the rod body of the sliding rod 5. Two lifting rods 7 are hingedly connected to the lower ends of the push plate 4 respectively, which can push the push plate 4 to slide on the inner wall of the lower mold 2, facilitating the ejection of the plastic workpiece. The other ends of the lifting rods 7 are hingedly connected to the sliding sleeves 6. A rotating sleeve 9 is arranged on the inner wall of the push groove. Connecting rods 8 are rotatably connected to the outer walls on both sides of the rotating sleeve 9, enabling the rotating sleeve 9 to be connected to the two lifting rods 7. The other ends of the connecting rods 8 are fixedly connected to the lifting rods 7. An electric telescopic rod 12 is fixedly connected to the inner wall of the push groove. A fixing plate 10 is fixedly connected to one side of the electric telescopic rod 12. The electric telescopic rod 12 can drive the fixing plate 10 to move. A guiding rod 11 is fixedly connected to the plate body of the fixing plate 10. The rod body is slidably connected to the rotating sleeve 9, and the inner wall of the rotating sleeve 9 is slidably connected to the guiding rod 11.

[0021] Refer to Figure 2 , a plurality of pull rods 15 are slidably connected to the inner walls of the lower mold 2. A circular ring piece 16 is fixedly connected to the lower ends of the pull rods 15. A spring 17 is fixedly connected to the upper end of the circular ring piece 16. The inner walls of the push grooves are fixedly connected to the plurality of springs 17. Under the elastic force of the springs 17, the circular ring piece 16 can be pushed downward, enabling the push plate 4 to fit on the inner wall of the lower mold 2 under the action of the pull rods 15.

[0022] Refer to Figure 3 , a plurality of clamping rods 13 are fixedly connected to the inner walls of the push grooves. Two clamping blocks 14 are fixedly connected to the outer walls of the fixing plate 10. The clamping rods 13 and the clamping blocks 14 can be used for limiting when the electric telescopic rod 12 drives the fixing plate 10 to move, preventing the fixing plate 10 from shifting during movement. The outer walls of the clamping blocks 14 are slidably connected to the clamping rods 13.

[0023] Refer to Figure 1 , the upper end of the base 1 is fixedly connected with a top plate 18. A hydraulic cylinder 19 is fixedly connected to the upper end of the top plate 18, which can drive the upper mold 3 to move up and down, facilitating the fitting of the upper mold 3 and the lower mold 2 to form the plastic workpiece. The lower end of the hydraulic cylinder 19 is fixedly connected to the upper mold 3.

[0024] Refer to Figure 1 , a plurality of limiting rods 20 are slidably connected to the plate body of the top plate 18, which can limit the movement of the upper mold 3. The lower ends of the limiting rods 20 are fixedly connected to the upper mold 3.

[0025] The implementation principle of the ejection control mechanism of an injection mold in an embodiment of this application is as follows: During use, the upper mold 3 can be pressed into the interior of the lower mold 2 through the hydraulic cylinder 19, which facilitates the molding of the plastic workpiece inside the lower mold 2. When the upper mold 3 rises, the fixed plate 10 can be driven to move through the electric telescopic rod 12. When the fixed plate 10 moves, it can drive the rotating sleeve 9 to slide on the rod body of the guide rod 11, enabling the rotating sleeve 9 to drive the lifting rod 7 to adjust the inclination angle through the connecting rods 8 on both sides, so that the lower end of the lifting rod 7 can drive the sliding sleeve 6 to slide on the rod body of the sliding rod 5, thereby driving the push plate 4 to rise and fall inside the lower mold 2, facilitating the ejection of the molded plastic workpiece from the interior of the lower mold 2.

[0026] Finally, several points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or it can be the communication inside two components. It can be directly connected. "Upper", "lower", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change;

[0027] Second: In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. Other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0028] Finally: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

[0029] The above are all the preferred embodiments of this application. It does not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. An injection mold ejection control mechanism, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected to a lower mold (2), the upper end of the base (1) is provided with an upper mold (3), the inner wall of the lower mold (2) is slidably connected to a push plate (4), the inner wall of the lower mold (2) is provided with a push groove, the inner wall of the push groove is fixedly connected to two slide rods (5), the rod body of the slide rod (5) is sleeved with a slide sleeve (6), the lower end of the push plate (4) is hingedly connected to two lifting rods (7), the other end of the lifting rod (7) is connected to the slide sleeve (6) The push groove is hingedly connected, the inner wall of the push groove is provided with a rotating sleeve (9), the outer walls on both sides of the rotating sleeve (9) are rotatably connected with connecting rods (8), the other end of the connecting rod (8) is fixedly connected to the lifting rod (7), the inner wall of the push groove is fixedly connected with an electric telescopic rod (12), one side of the electric telescopic rod (12) is fixedly connected with a fixing plate (10), the plate body of the fixing plate (10) is fixedly connected with a guide rod (11), and the inner wall of the rotating sleeve (9) is slidably connected with the guide rod (11).

2. The injection mold ejection control mechanism according to claim 1, characterized in that: The inner wall of the lower mold (2) is slidably connected to a plurality of pull rods (15), the lower end of the pull rods (15) is fixedly connected to a circular ring (16), the upper end of the circular ring (16) is fixedly connected to a spring (17), and the inner wall of the push groove is fixedly connected to the plurality of springs (17).

3. The injection mold ejection control mechanism according to claim 1, characterized in that: The inner wall of the push groove is fixedly connected with a plurality of locking rods (13), the outer wall of the fixed plate (10) is fixedly connected with two locking blocks (14), and the outer wall of the locking block (14) is slidably connected with the locking rods (13).

4. The injection mold ejection control mechanism according to claim 1, characterized in that: The upper end of the base (1) is fixedly connected to a top plate (18), the upper end of the top plate (18) is fixedly connected to a hydraulic cylinder (19), and the lower end of the hydraulic cylinder (19) is fixedly connected to the upper mold (3).

5. The injection mold ejection control mechanism according to claim 4, characterized in that: The plate body of the top plate (18) is slidably connected to a plurality of limiting rods (20), and the lower ends of the limiting rods (20) are fixedly connected to the upper mold (3).

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