Ejection mechanism of valve plate mold

Abstract

The utility model discloses an ejection mechanism of a valve plate mould, which comprises a lower mould and an upper mould, the outer wall of one end of the lower mould is fixedly connected with a motor, the output end of the motor is in key connection with a two-way threaded rod, the outer wall of the two-way threaded rod is sleeved with two first sliding blocks in a threaded manner, and the top of each first sliding block is rotatably connected with a connecting rod; a placing plate is slidably connected between the inner walls of the two sides of the lower mold, two sliding grooves are formed in the bottom of the placing plate, second sliding blocks are slidably connected into the sliding grooves, the top ends of the connecting rods are rotatably connected with the bottoms of the second sliding blocks, and a plurality of ejector pins are fixedly connected to the top of the placing plate. The two-way threaded rod is driven by the motor to rotate, so that the two first sliding blocks gather towards the middle, the containing plate is pushed to move upwards under the connecting action of the connecting rod, the ejector pin is driven to move upwards, the valve plate is evenly ejected out, and the quality of the valve plate is improved.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to an ejection mechanism for a valve plate mold. Background Technology

[0002] Molds are various shapes and tools used in industrial production to obtain desired products through methods such as injection molding, blow molding, extrusion, die casting, forging, smelting, and stamping. Molds have cavities that conform to the shape of the product and are used for product molding.

[0003] Currently, existing mold ejection mechanisms suffer from uneven force distribution during ejection, causing the ejector plate to tilt, which affects the dimensional and shape accuracy of the product. Furthermore, the lack of a buffer structure on the ejector pins during ejection can easily lead to impacts on the mold surface. Utility Model Content

[0004] The purpose of this invention is to solve the problem of uneven force distribution and tilting of the top plate, which affects the dimensional and shape accuracy of the product, and to propose an ejection mechanism for valve plate molds.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An ejection mechanism for a valve plate mold includes a lower mold and an upper mold. A motor is fixedly connected to the outer wall of one end of the lower mold. A bidirectional threaded rod is keyed to the output end of the motor. Two first sliders are threadedly sleeved on the outer wall of the bidirectional threaded rod. A connecting rod is rotatably connected to the top of the first sliders. A placement plate is slidably connected between the inner walls of the two sides of the lower mold. Two sliding grooves are provided at the bottom of the placement plate. Second sliders are slidably connected in the sliding grooves. The top of the connecting rod is rotatably connected to the bottom of the second slider. Multiple ejector pins are fixedly connected to the top of the placement plate. The tops of the ejector pins protrude from the top of the lower mold. Two sliding rods are slidably inserted into the tops of the ejector pins. A sliding cylinder is fixedly connected to the tops of the two sliding rods. A spring is fixedly connected to the inner wall of the bottom of the sliding cylinder. The bottom end of the spring is fixedly connected to the top of the ejector pin.

[0007] Furthermore, the top of the lower mold is integrally formed with multiple positioning cylinders.

[0008] Furthermore, the bottom of the upper mold is integrally formed with multiple locking pins, which are inserted into the positioning cylinder.

[0009] Furthermore, the bottom of the upper mold is integrally formed with an extrusion plate.

[0010] Furthermore, the top of the lower mold is provided with an extrusion groove, and when the upper mold and the lower mold are put together, the extrusion plate is located in the extrusion groove.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. Driven by the motor, the bidirectional threaded rod rotates, causing the two first sliders to converge towards the center. Then, under the connecting action of the connecting rod, the placement plate is pushed upward, thereby driving the ejector pin upward and evenly ejecting the valve plate, thus improving the quality of the valve plate.

[0013] 2. The valve plate is cushioned by the sliding rod and spring, thus avoiding damage to the valve plate. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the ejection mechanism of a valve plate mold proposed in this utility model;

[0015] Figure 2 This is a cross-sectional structural schematic diagram of the ejection mechanism of a valve plate mold proposed in this utility model;

[0016] Figure 3 This is a partial three-dimensional structural diagram of the ejection mechanism of a valve plate mold proposed in this utility model;

[0017] Figure 4 This is an enlarged structural diagram of part A of the ejection mechanism of a valve plate mold proposed in this utility model.

[0018] In the diagram: 1. Lower mold; 2. Positioning cylinder; 3. Upper mold; 4. Locking pin; 5. Extrusion plate; 6. Extrusion groove; 7. Motor; 8. Bidirectional threaded rod; 9. First slider; 10. Connecting rod; 11. Second slider; 12. Placement plate; 13. Slide groove; 14. Ejector pin; 15. Sliding cylinder; 16. Slide rod; 17. Spring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figures 1-4An ejection mechanism for a valve plate mold includes a lower mold 1 and an upper mold 3. A motor 7 is bolted to the outer wall of one end of the lower mold 1. A bidirectional threaded rod 8 is keyed to the output end of the motor 7. Two first sliders 9 are threaded onto the outer wall of the bidirectional threaded rod 8. A connecting rod 10 is rotatably connected to the top of the first sliders 9. A placement plate 12 is slidably connected between the inner walls of the two sides of the lower mold 1. Two grooves 13 are provided at the bottom of the placement plate 12. Second sliders 11 are slidably connected within the grooves 13. The top of the connecting rod 10 is rotatably connected to the bottom of the second sliders 11. Multiple ejector pins 14 are welded to the top of the placement plate 12. The tops of the ejector pins 14 protrude from the top of the lower mold 1. Driven by the motor 7, the bidirectional threaded rod 8 rotates, causing the two first sliders 9 to converge towards the center. Then, under the connection of the connecting rod 10, the second slider 11 moves within the slide groove 13, thereby pushing the placement plate 12 upward and causing the ejector pin 14 to move upward. This causes the valve plate in the extrusion groove 6 to be ejected upward. Two slide rods 16 are slidably inserted into the top of the ejector pin 14. The top of the two slide rods 16 are welded together with a slide cylinder 15. A spring 17 is welded to the bottom inner wall of the slide cylinder 15. The bottom end of the spring 17 is fixedly connected to the top of the ejector pin 14. The ejection of the valve plate is buffered by the slide rods 16 and the spring 17, and then the valve plate is removed from the machine housing.

[0021] The top of the lower mold 1 has multiple positioning cylinders 2 integrally formed, and the bottom of the upper mold 3 has multiple locking pins 4 integrally formed. The locking pins 4 are inserted into the positioning cylinders 2. The insertion of the locking pins 4 into the positioning cylinders 2 facilitates the upper mold 3 to be closed on the lower mold 1. The bottom of the upper mold 3 has an extrusion plate 5 integrally formed, and the top of the lower mold 1 is provided with an extrusion groove 6. When the upper mold 3 is closed on the lower mold 1, the extrusion plate 5 is squeezed into the extrusion groove 6 to extrude the valve plate. When the upper mold 3 and the lower mold 1 are closed together, the extrusion plate 5 is located in the extrusion groove 6.

[0022] The working principle of this embodiment is as follows: In use, firstly, the injection molding liquid is injected into the extrusion groove 6. Then, the upper mold 3 is closed with the lower mold 1 by the insertion of the locking pin 4 and the positioning cylinder 2, so that the extrusion plate 5 is located in the extrusion groove 6, thereby extruding the valve plate into shape. After forming, firstly, the upper mold 3 and the lower mold 1 are separated. Then, under the drive of the motor 7, the bidirectional threaded rod 8 is rotated, so that the two first sliders 9 are brought together in the middle. Then, under the connection of the connecting rod 10, the second slider 11 is driven to move in the slide groove 13, thereby pushing the placement plate 12 to move upward, and then driving the ejector pin 14 to move upward, so that the valve plate in the extrusion groove 6 is pushed out upward. The ejection of the valve plate is buffered by the slide rod 16 and the spring 17, and then the valve plate is taken out of the machine housing.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An ejection mechanism for a valve plate mold, comprising a lower mold (1) and an upper mold (3), characterized in that, A motor (7) is fixedly connected to the outer wall of one end of the lower mold (1). A bidirectional threaded rod (8) is keyed to the output end of the motor (7). Two first sliders (9) are threadedly fitted on the outer wall of the bidirectional threaded rod (8). A connecting rod (10) is rotatably connected to the top of the first sliders (9). A placement plate (12) is slidably connected between the inner walls of the two sides of the lower mold (1). Two grooves (13) are provided at the bottom of the placement plate (12). A second slider (11) is slidably connected in the grooves (13). The top of (10) is rotatably connected to the bottom of the second slider (11). The top of the placement plate (12) is fixedly connected to a plurality of ejector pins (14). The top of the ejector pins (14) protrudes through the top of the lower mold (1). The top of the ejector pins (14) is slidably inserted with two slide rods (16). The tops of the two slide rods (16) are fixedly connected to a slide cylinder (15). The bottom inner wall of the slide cylinder (15) is fixedly connected to a spring (17). The bottom end of the spring (17) is fixedly connected to the top of the ejector pins (14).

2. The ejection mechanism of a valve plate mold according to claim 1, characterized in that, The top of the lower mold (1) is integrally formed with multiple positioning cylinders (2).

3. The ejection mechanism of a valve plate mold according to claim 2, characterized in that, The bottom of the upper mold (3) is integrally formed with multiple locking pins (4), which are inserted into the positioning cylinder (2).

4. The ejection mechanism of a valve plate mold according to claim 1, characterized in that, The bottom of the upper mold (3) is integrally formed with an extrusion plate (5).

5. The ejection mechanism of a valve plate mold according to claim 4, characterized in that, The lower mold (1) is provided with an extrusion groove (6) at the top. When the upper mold (3) and the lower mold (1) are put together, the extrusion plate (5) is located in the extrusion groove (6).

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