Injection mold ejection mechanism

Abstract

The utility model discloses an injection mold ejection mechanism which comprises an installation plate and an injection mold base, a rectangular groove is formed in the top of the installation plate, a fixed protruding block is fixedly installed in the rectangular groove, two movable sliding grooves are formed in the top of the installation plate, a pushing air cylinder is fixedly installed on the top of the installation plate, and the pushing air cylinder is fixedly installed on the top of the installation plate. A first push plate is fixedly mounted at the output end of the push air cylinder, and an injection mold cavity is formed in the top of the injection mold base. The output end of a pushing air cylinder can push an injection mold base to move, so that the injection mold base moves at the top of a mounting plate, a movable convex block moves in a rectangular groove, and when the movable convex block passes through a fixed convex block, the movable convex block can push an ejection column to move upwards, so that an ejection plate is pushed to move upwards; the injection molding finished product in the injection molding mold cavity is ejected out, demolding is convenient, the simple structural design is adopted, manufacturing and installation are easy, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical appliances, in particular to an injection mold ejection mechanism. Background Art

[0002] Plastic molds are important process equipment for producing various industrial products. With the rapid development of the plastics industry and the promotion and application of plastic products in industrial sectors such as aviation, aerospace, electronics, machinery, shipbuilding and automobiles, injection molds are widely used in various industries.

[0003] After the injection molding material cools and forms, an ejector mechanism is installed on the mold to facilitate removal of the finished product from the mold. This mechanism pushes the finished product outward from the inside, separating it from the mold. However, existing ejector mechanisms present several design and operational challenges, such as unstable ejection performance, easily worn ejector components, and a short lifespan, which impacts mold effectiveness and efficiency. Utility Model Content

[0004] The purpose of the present utility model is to provide an injection mold ejection mechanism to solve the problems raised in the above background technology.

[0005] The top of the injection mold base is provided with an injection molding machine, and the injection molding machine is installed in an up-down knob.

[0006] Preferably, the specification size of the outer diameter of the movable slide bar is adapted to the specification size of the inner diameter of the movable slide groove, and the two movable slide bars are respectively slidably mounted on the inner sides of the two movable slide grooves.

[0007] Preferably, the side of the push plate 2 away from the injection mold base is fixedly connected to the side of the push plate 1 away from the pushing cylinder.

[0008] Preferably, the movable protrusion is slidably installed inside the rectangular groove.

[0009] Preferably, the two sliding blocks are respectively slidably installed on the inner sides of the two sliding grooves, and the inner sides of the two sliding grooves are fixedly installed with limiting sliding rods. Circular holes are opened inside the two sliding blocks, and the limiting sliding rods are movably installed on the inner sides of the circular holes.

[0010] Preferably, one end of the return spring away from the sliding block is fixedly mounted on the top of the inner cavity of the sliding groove, and the return spring is sleeved and mounted on the outer side of the limiting sliding rod.

[0011] Preferably, a support rod is fixedly installed on the top of the mounting plate, a placement plate is fixedly installed on the top of the support rod, and a placement groove is provided on the top of the placement plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects: the output end of the push cylinder can push the injection mold base to move, thereby the injection mold base moves on the top of the mounting plate, and the moving protrusion moves inside the rectangular groove; when the moving protrusion passes the fixed protrusion, the moving protrusion pushes the ejector column to move upward, thereby pushing the ejector plate to move upward, thereby ejecting the finished injection molded product inside the injection mold cavity, facilitating demoulding; adopts a simple structural design, is easy to manufacture and install, and reduces production costs;

[0013] In addition, when the output end of the cylinder is pushed back, the return spring will push the sliding block to move inside the sliding groove, so that the top column drives the moving protrusion to move downward and reset, which is convenient for next use and improves the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional appearance structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the partial three-dimensional structure of the utility model.

[0016] Figure 3 It is a schematic diagram of the partial structure of the utility model when viewed from above.

[0017] Figure 4 It is a schematic diagram of the partial cross-sectional structure of the utility model.

[0018] In the figure: 1. Mounting plate; 2. Fixed protrusion; 3. Moving slide; 4. Injection mold base; 5. Injection mold cavity; 6. Support rod; 7. Placement plate; 8. Placement groove; 9. Push cylinder; 10. Push plate 1; 11. Rectangular groove; 12. Sliding groove; 13. Limiting slide bar; 14. Sliding block; 15. Return spring; 16. Moving slide; 17. Moving protrusion; 18. Ejector column; 19. Ejector plate; 20. Push plate 2. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figures 1-4 The utility model provides a technical solution: an injection mold ejection mechanism, including a mounting plate 1 and an injection mold base 4, a rectangular groove 11 is provided on the top of the mounting plate 1, a fixed protrusion 2 is fixedly installed inside the rectangular groove 11, two movable slides 3 are provided on the top of the mounting plate 1, a pushing cylinder 9 is fixedly installed on the top of the mounting plate 1, and a push plate 10 is fixedly installed on the output end of the pushing cylinder 9, an injection mold cavity 5 is provided on the top of the injection mold base 4, and movable slides 16 are fixedly installed on both sides of the bottom of the injection mold base 4, and an ejection plate 19 is movably installed on the bottom of the inner cavity of the injection mold cavity 5, and a top column 18 is fixedly installed on the bottom of the ejection plate 19, and a movable protrusion 17 is fixedly installed on the end of the top column 18 away from the ejection plate 19, and the movable protrusion 17 is slidably installed in the inside of the rectangular groove 11, and two sliding grooves 12 are provided inside the bottom of the injection mold base 4. Both sides of the ejection column 18 Both are fixedly installed with sliding blocks 14, and the tops of the sliding blocks 14 are fixedly installed with return springs 15. A push plate 20 is fixedly installed on one side of the injection mold base 4. The specifications of the outer diameter of the moving slide 16 are adapted to the specifications of the inner diameter of the moving slide 3, and the two moving slides 16 are respectively slidably installed on the inner sides of the two moving slides 3, and the side of the push plate 20 away from the injection mold base 4 is fixedly connected to the side of the push plate 10 away from the pushing cylinder 9. The two sliding blocks 14 are respectively slidably installed on the inner sides of the two sliding grooves 12, and the inner sides of the two sliding grooves 12 are fixedly installed with limiting slide bars 13. Circular holes are provided inside the two sliding blocks 14, and the limiting slide bars 13 are movably installed on the inner sides of the circular holes. The end of the return spring 15 away from the sliding block 14 is fixedly installed on the top of the inner cavity of the sliding groove 12, and the return spring 15 is sleeved on the outer side of the limiting slide bar 13.

[0021] The working principle of the above technical solution is: when it is necessary to demold the finished injection molded product inside the injection mold cavity 5 at the top of the injection mold base 4, it is only necessary to start the pushing cylinder 9. The output end of the pushing cylinder 9 can push the injection mold base 4 to move, so that the injection mold base 4 moves on the top of the mounting plate 1, and makes the moving protrusion 17 move inside the rectangular groove 11. When the moving protrusion 17 passes the fixed protrusion 2, the moving protrusion 17 will push the ejector column 18 to move upward, thereby pushing the ejection plate 19 to move upward, thereby ejecting the finished injection molded product inside the injection mold cavity 5, which is convenient for demolding. In addition, when the output end of the pushing cylinder 9 retracts, under the action of the reset spring 15, the sliding block 14 will be pushed to move inside the sliding groove 12, so that the ejector column 18 drives the moving protrusion 17 to move downward and reset, which is convenient for next use and improves the use effect of the device.

[0022] In another embodiment, Figure 1-Figure 3 As shown, a support rod 6 is fixedly installed on the top of the mounting plate 1, a placement plate 7 is fixedly installed on the top of the support rod 6, and a placement groove 8 is provided on the top of the placement plate 7.

[0023] The support rod 6 , the placement plate 7 and the placement groove 8 can be used to place the injection molding machine, so as to facilitate the injection molding of the interior of the injection mold cavity 5 on the top of the injection mold base 4 .

[0024] Working principle: First, place the injection molding machine inside the placement groove 8 on the top of the placement plate 7, so as to perform injection molding on the inside of the injection mold cavity 5 on the top of the injection mold base 4. When it is necessary to demould the injection molded product inside the injection mold cavity 5 on the top of the injection mold base 4, just start the push cylinder 9. The output end of the push cylinder 9 can push the injection mold base 4 to move, so that the injection mold base 4 moves on the top of the mounting plate 1 and the moving protrusion 17 moves inside the rectangular groove 11. When the moving protrusion 17 passes the fixed protrusion 2 When the output end of the cylinder 9 is retracted, the sliding block 14 is pushed to move inside the sliding groove 12 under the action of the return spring 15, so that the top column 18 drives the moving protrusion 17 to move downward and reset, which is convenient for next use and improves the use effect of the device.

[0025] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection mold ejection mechanism, comprising a mounting plate (1) and an injection mold base (4), characterized in that: The top of the mounting plate (1) is provided with a rectangular groove (11), the interior of the rectangular groove (11) is fixedly provided with a fixed protrusion (2), the top of the mounting plate (1) is provided with two movable slides (3), the top of the mounting plate (1) is fixedly provided with a push cylinder (9), the output end of the push cylinder (9) is fixedly provided with a push plate (10), the top of the injection mold base (4) is provided with an injection mold cavity (5), both sides of the bottom of the injection mold base (4) are fixedly provided with movable slides (16), the injection mold cavity (5 ) An ejector plate (19) is movably mounted on the bottom of the inner cavity, a top column (18) is fixedly mounted on the bottom of the ejector plate (19), a movable protrusion (17) is fixedly mounted on one end of the top column (18) away from the ejector plate (19), two sliding grooves (12) are provided inside the bottom of the injection mold base (4), sliding blocks (14) are fixedly mounted on both sides of the top column (18), and a return spring (15) is fixedly mounted on the top of the sliding block (14), and a push plate 2 (20) is fixedly mounted on one side of the injection mold base (4).

2. The injection mold ejection mechanism according to claim 1, characterized in that: The outer diameter of the movable slide bar (16) is matched with the inner diameter of the movable slide groove (3), and the two movable slide bars (16) are respectively slidably mounted on the inner sides of the two movable slide grooves (3).

3. The injection mold ejection mechanism according to claim 1, characterized in that: The side of the second push plate (20) away from the injection mold base (4) is fixedly connected to the side of the first push plate (10) away from the pushing cylinder (9).

4. The injection mold ejection mechanism according to claim 1, characterized in that: The movable protrusion (17) is slidably mounted inside the rectangular groove (11).

5. The injection mold ejection mechanism according to claim 1, characterized in that: The two sliding blocks (14) are respectively slidably mounted on the inner sides of the two sliding grooves (12); the inner sides of the two sliding grooves (12) are fixedly mounted with a limiting sliding rod (13); circular holes are provided inside the two sliding blocks (14), and the limiting sliding rod (13) is movably mounted on the inner sides of the circular holes.

6. The injection mold ejection mechanism according to claim 1, characterized in that: One end of the return spring (15) away from the sliding block (14) is fixedly mounted on the top of the inner cavity of the sliding groove (12), and the return spring (15) is sleeved and mounted on the outer side of the limiting sliding rod (13).

7. The injection mold ejection mechanism according to claim 1, characterized in that: A support rod (6) is fixedly mounted on the top of the mounting plate (1), a placement plate (7) is fixedly mounted on the top of the support rod (6), and a placement groove (8) is provided on the top of the placement plate (7).

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