Injection molding device for plastic product production

Abstract

The utility model discloses an injection molding device for plastic product production, including operation panel, extrusion demoulding mechanism, material breaking mechanism and extrusion mechanism, the extrusion mechanism includes the first fixed plate of operation panel upper surface fixed setting, one side fixed setting of first fixed plate has extrusion pipe, the inside rotatory arrangement of extrusion pipe has screw rod, the output of extrusion pipe is connected with fixed mould, the material breaking mechanism includes the gantry of operation panel upper surface fixed setting, the lower surface fixed setting of middle part of gantry has first electric telescopic handle, the other end fixed setting of first electric telescopic handle has the connecting plate, the lower surface fixed setting of connecting plate has the baffle, the baffle slidingly penetrates fixed mould. Through above -mentioned structure, realized the extrusion and the material breaking in the production process of plastic product, and the accurate control of material breaking mechanism through first electric telescopic handle makes the baffle realize quick cutting in fixed mould output end, and effectively avoided the waste of raw material and the flaw of product.

Description

Technical Field

[0001] This utility model relates to the field of plastic product processing technology, and in particular to an injection molding device for producing plastic products. Background Technology

[0002] In the plastics processing industry, injection molding equipment is the core equipment for melting and molding plastic raw materials. It injects molten plastic raw materials into the mold cavity, and after cooling and solidification, various plastic products are obtained, which are widely used in home appliances, automobiles, daily necessities and other fields. At present, the mainstream injection molding equipment is usually composed of an extrusion mechanism, a mold assembly and a demolding mechanism, but in the actual production process, there are still many problems that need to be optimized.

[0003] Traditional injection molding equipment lacks a precise material cutting control structure. After the mold cavity is filled, the molten material conveyed by the extrusion mechanism is prone to overflow due to the inability to cut off the material in time. This not only wastes material but also causes the overflowing material to stick to the mold surface, increasing the difficulty of mold cleaning and even affecting the molding accuracy of subsequent injection molded products. The demolding mechanism often uses a single set of drive components to drive the ejector pins. The ejector pins are subjected to uneven force, which can easily lead to deformation and breakage of the finished product during demolding. Moreover, the finished product needs to be collected manually after demolding, which cannot be automated with the equipment and reduces the overall production efficiency. Some equipment lacks effective heat preservation measures for the extrusion mechanism. The molten material is prone to solidification due to temperature drop during the conveying process, affecting the material's fluidity and resulting in insufficient cavity filling, thus reducing the product qualification rate. Utility Model Content

[0004] The purpose of this invention is to provide an injection molding device for the production of plastic products, which can control the conveying of raw materials, prevent raw material overflow, and achieve stable demolding and automatic collection of finished products, thereby improving production efficiency and reducing raw material waste.

[0005] To achieve the above objectives, an injection molding apparatus for producing plastic products is provided, comprising an operating table, an extrusion and demolding mechanism, a material cutting mechanism, and an extrusion mechanism. The extrusion mechanism includes a first fixed plate fixedly mounted on the upper surface of the operating table, an extrusion tube fixedly mounted on one side of the first fixed plate, a screw rotatably mounted inside the extrusion tube, and a fixed mold fixedly connected to the output end of the extrusion tube. The material cutting mechanism includes a gantry fixedly mounted on the upper surface of the operating table, a first electric telescopic rod fixedly mounted on the lower surface of the middle part of the gantry, a connecting plate fixedly mounted on the other end of the first electric telescopic rod, and a partition plate fixedly mounted on the lower surface of the connecting plate, the partition plate slidingly penetrating the fixed mold.

[0006] According to the aforementioned injection molding device for producing plastic products, the extrusion demolding mechanism includes a second fixed plate fixedly disposed on the upper surface of the operating table, a second electric telescopic rod fixedly disposed on one side of the second fixed plate, and a moving mold box fixedly disposed on the other end of the second electric telescopic rod.

[0007] According to the injection molding device for producing plastic products, a first motor is fixedly installed on one side of the first fixed plate. The output end of the first motor rotates through the first fixed plate and is fixedly connected to the screw. A feed pipe is opened on the upper surface of the extrusion tube, and a heat insulation pipe is fixedly installed on the inner wall of the extrusion tube.

[0008] According to the injection molding device for producing plastic products, a second connecting hole is provided on one side of the fixed mold, and a first connecting hole is provided in the middle of the partition plate. The first connecting hole and the second connecting hole are adapted to the output end of the extrusion tube.

[0009] According to the injection molding device for producing plastic products, a fixed box is fixedly installed on the inner wall of the moving mold box, a second motor is fixedly installed inside the fixed box, a reciprocating lead screw is fixedly connected to the output end of the second motor, a second sliding plate is adapted to be installed on the surface of the reciprocating lead screw, and a hollow rod is fixedly installed on the upper surface of the second sliding plate, the hollow rod slidingly passing through one side of the fixed box.

[0010] According to the injection molding device for producing plastic products, a first slide plate is fixedly provided on one side of the hollow rod. The first slide plate is slidably connected to the inner wall of the moving mold box. A plurality of first ejector pins are fixedly provided on one side of the first slide plate. A plurality of ejector pin holes are opened on one side of the moving mold box, and the plurality of ejector pin holes are adapted to the plurality of first ejector pins.

[0011] According to the injection molding device for producing plastic products, four sliding rods are fixedly arranged in the middle of the fixed mold and the second fixed plate, and the four sliding rods slide through the moving mold box and the first sliding plate.

[0012] According to the aforementioned injection molding device for producing plastic products, a material discharge port is provided on the upper surface of the operating table, a collection box is provided below the material discharge port, and four support legs are fixedly provided on the lower surface of the operating table.

[0013] This utility model has the following beneficial effects:

[0014] 1. Compared with existing technologies, this injection molding device for producing plastic products can quickly control the flow of raw materials by using a baffle plate of the material cutting mechanism in conjunction with an electric telescopic rod. When the cavity is full, the baffle plate can promptly block the flow of raw materials, preventing overflow and waste, reducing mold contamination, and lowering cleaning costs.

[0015] 2. Compared with the existing technology, the injection molding device for producing plastic products adopts a multi-ejector synchronous pushing design in the extrusion demolding mechanism. With the guidance of the slide rod, it can ensure that the ejector pins are subjected to uniform force and avoid product deformation. In addition, the combination of the discharge port and the collection box can realize the centralized collection of finished products after demolding and improve production continuity. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is a schematic diagram of the overall structure of an injection molding device for producing plastic products according to this utility model;

[0018] Figure 2 This is a cross-sectional view of the extrusion mechanism of an injection molding device for producing plastic products according to this utility model;

[0019] Figure 3 This is a cross-sectional view of the material cutting mechanism of an injection molding device for producing plastic products according to this utility model;

[0020] Figure 4 This is a cross-sectional view of the extrusion demolding mechanism of an injection molding device for producing plastic products according to this utility model;

[0021] Figure 5 This is a cross-sectional view of the moving mold box of an injection molding device for producing plastic products according to this utility model.

[0022] Legend:

[0023] 1. Operating platform; 2. Support legs; 3. Collection box; 4. Discharge port; 5. Extrusion demolding mechanism; 6. Material cutting mechanism; 7. Extrusion mechanism; 8. First motor; 9. First fixed plate; 10. Feed pipe; 11. Insulation pipe; 12. Screw; 13. Extrusion pipe; 14. Gantry frame; 15. First electric telescopic rod; 16. Connecting plate; 17. Fixed mold; 18. Partition plate; 19. First connecting hole; 20. Second connecting hole; 22. Slide rod; 23. Second fixed plate; 24. Second electric telescopic rod; 25. Moving mold box; 26. Ejector pin hole; 27. First ejector pin; 28. First slide plate; 29. ​​Hollow rod; 30. Reciprocating screw; 31. Second slide plate; 32. Second motor; 33. Fixed box. Detailed Implementation

[0024] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0025] Reference Figure 1-5 This utility model discloses an injection molding device for producing plastic products, which includes an operating table 1, an extrusion and demolding mechanism 5, a material cutting mechanism 6, and an extrusion mechanism 7. The extrusion mechanism 7 includes a first fixing plate 9 fixedly mounted on the upper surface of the operating table 1. An extrusion tube 13 is fixedly mounted on one side of the first fixing plate 9. A screw 12 is rotatably mounted inside the extrusion tube 13. A fixed mold 17 is fixedly connected to the output end of the extrusion tube 13. The material cutting mechanism 6 includes a gantry frame 14 fixedly mounted on the upper surface of the operating table 1. A first electric telescopic rod 15 is fixedly mounted on the lower surface of the middle part of the gantry frame 14. A connecting plate 16 is fixedly mounted on the other end of the first electric telescopic rod 15. A partition plate 18 is fixedly mounted on the lower surface of the connecting plate 16. The partition plate 18 slides through the fixed mold 17.

[0026] The extrusion demolding mechanism 5 includes a second fixed plate 23 fixedly mounted on the upper surface of the operating table 1. A second electric telescopic rod 24 is fixedly mounted on one side of the second fixed plate 23, and a moving mold box 25 is fixedly mounted on the other end of the second electric telescopic rod 24. A first motor 8 is fixedly mounted on one side of the first fixed plate 9. The output end of the first motor 8 rotates through the first fixed plate 9 and is fixedly connected to the screw 12. A feed pipe 10 is opened on the upper surface of the extrusion tube 13, and a heat insulation pipe 11 is fixedly mounted on the inner wall of the extrusion tube 13.

[0027] The screw 12 rotates inside the extrusion tube 13, pushing the raw material entering through the feed pipe 10 toward the fixed mold 17. The heat insulation pipe 11 maintains the temperature of the raw material. Damping is provided at the sliding point between the partition plate 18 and the fixed mold 17. The raw material enters the extrusion tube 13 from the feed pipe 10, and the first motor 8 drives the screw 12 to rotate, pushing the raw material toward the fixed mold 17.

[0028] The first electric telescopic rod 15 drives the connecting plate 16 and the partition 18 to slide up and down. When the first connecting hole 19 of the partition 18 is aligned with the output end of the extrusion tube 13, the fixed mold 17 and the second connecting hole 20, the raw material can enter the cavity. When the partition 18 slides out of place, it will block the material delivery and prevent the material from overflowing after the cavity is filled.

[0029] The second electric telescopic rod 24 pushes the moving mold box 25 towards the fixed mold 17 until it fits against the fixed mold 17, forming a closed injection cavity, and the raw material is filled and molded. The second electric telescopic rod 24 drives the moving mold box 25 to retract and open the mold. Then, the second motor 32 drives the reciprocating screw 30 to rotate, causing the second slide plate 31 to push the hollow rod 29 and the first slide plate 28 to move. Finally, the first ejector pin 27 extends out of the ejector pin hole 26, ejecting the finished product from the cavity and completing the demolding.

[0030] A second connecting hole 20 is provided on one side of the fixed mold 17, and a first connecting hole 19 is provided in the middle of the partition plate 18. The first connecting hole 19 and the second connecting hole 20 are adapted to the output end of the extrusion tube 13. A fixed box 33 is fixedly installed on the inner wall of the moving mold box 25. A second motor 32 is fixedly installed inside the fixed box 33. A reciprocating lead screw 30 is fixedly connected to the output end of the second motor 32. A second sliding plate 31 is adapted to the surface of the reciprocating lead screw 30. A hollow rod 29 is fixedly installed on the upper surface of the second sliding plate 31. The hollow rod 29 slides through one side of the fixed box 33.

[0031] A first sliding plate 28 is fixedly installed on one side of the hollow rod 29. The first sliding plate 28 is slidably connected to the inner wall of the moving mold box 25. Several first ejector pins 27 are fixedly installed on one side of the first sliding plate 28. Several ejector pin holes 26 are opened on one side of the moving mold box 25, and the ejector pin holes 26 are adapted to the ejector pins 27. Four sliding rods 22 are fixedly installed in the middle of the fixed mold 17 and the second fixed plate 23. The four sliding rods 22 slide through the moving mold box 25 and the first sliding plate 28.

[0032] The upper surface of the operating table 1 has a discharge port 4, and a collection box 3 is set below the discharge port 4. Four support legs 2 are fixedly installed on the lower surface of the operating table 1. The finished products after demolding fall into the collection box 3 through the discharge port 4, realizing the centralized collection of finished products.

[0033] Working principle: Molten raw material enters extrusion tube 13 from feed pipe 10, and heat preservation pipe 11 maintains the temperature inside the tube to ensure the flow of molten raw material.

[0034] The second electric telescopic rod 24 pushes the moving mold box 25 to move along the slide rod 22 toward the fixed mold 17, fitting together to form a closed cavity.

[0035] The first motor 8 drives the screw 12 to push the molten material. The first electric telescopic rod 15 drives the partition 18 to move downward, aligning the first connecting hole 19 with the second connecting hole 20, and the material is injected into the cavity. After the cavity is filled, the first electric telescopic rod 15 drives the partition 18 to move upward to cut off the material, and the mold closes to wait for the material to cool and solidify. The second electric telescopic rod 24 drives the moving mold box 25 to retract and open the mold. The second motor 32 drives the reciprocating screw 30, which pushes the first sliding plate 28 through the second sliding plate 31 and the hollow rod 29, causing the first ejector pin 27 to eject the finished product.

[0036] The finished product falls onto the operating table 1 and then into the collection box 3 through the feeding port 4.

[0037] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An injection molding apparatus for producing plastic products, characterized in that, It includes an operating table (1), an extrusion demolding mechanism (5), a material cutting mechanism (6) and an extrusion mechanism (7). The extrusion mechanism (7) includes a first fixed plate (9) fixedly installed on the upper surface of the operating table (1). An extrusion tube (13) is fixedly installed on one side of the first fixed plate (9). A screw (12) is rotatably installed inside the extrusion tube (13). A fixed mold (17) is fixedly connected to the output end of the extrusion tube (13). The material cutting mechanism (6) includes a gantry frame (14) fixedly installed on the upper surface of the operating table (1). A first electric telescopic rod (15) is fixedly installed on the lower surface of the middle part of the gantry frame (14). A connecting plate (16) is fixedly installed at the other end of the first electric telescopic rod (15). A partition plate (18) is fixedly installed on the lower surface of the connecting plate (16). The partition plate (18) slides through the fixed mold (17).

2. The injection molding apparatus for producing plastic products according to claim 1, characterized in that, The extrusion demolding mechanism (5) includes a second fixed plate (23) fixedly installed on the upper surface of the operating table (1), a second electric telescopic rod (24) fixedly installed on one side of the second fixed plate (23), and a moving mold box (25) fixedly installed on the other end of the second electric telescopic rod (24).

3. The injection molding apparatus for producing plastic products according to claim 1, characterized in that, A first motor (8) is fixedly installed on one side of the first fixed plate (9). The output end of the first motor (8) rotates through the first fixed plate (9) and is fixedly connected to the screw (12). A feed pipe (10) is opened on the upper surface of the extrusion tube (13). A heat insulation pipe (11) is fixedly installed on the inner wall of the extrusion tube (13).

4. The injection molding apparatus for producing plastic products according to claim 1, characterized in that, The fixed mold (17) has a second connecting hole (20) on one side, and the partition (18) has a first connecting hole (19) in the middle. The first connecting hole (19) and the second connecting hole (20) are adapted to the output end of the extrusion tube (13).

5. The injection molding apparatus for producing plastic products according to claim 2, characterized in that, A fixed box (33) is fixedly installed on the inner wall of the moving mold box (25). A second motor (32) is fixedly installed inside the fixed box (33). A reciprocating screw (30) is fixedly connected to the output end of the second motor (32). A second sliding plate (31) is adapted to the surface of the reciprocating screw (30). A hollow rod (29) is fixedly installed on the upper surface of the second sliding plate (31). The hollow rod (29) slides through one side of the fixed box (33).

6. The injection molding apparatus for producing plastic products according to claim 5, characterized in that, A first slide plate (28) is fixedly provided on one side of the hollow rod (29). The first slide plate (28) is slidably connected to the inner wall of the moving mold box (25). A plurality of first ejector pins (27) are fixedly provided on one side of the first slide plate (28). A plurality of ejector pin holes (26) are opened on one side of the moving mold box (25). The plurality of ejector pin holes (26) are adapted to the plurality of first ejector pins (27).

7. The injection molding apparatus for producing plastic products according to claim 1, characterized in that, Four sliding rods (22) are fixedly installed in the middle of the fixed mold (17) and the second fixed plate (23). The four sliding rods (22) slide through the moving mold box (25) and the first sliding plate (28).

8. The injection molding apparatus for producing plastic products according to claim 1, characterized in that, The upper surface of the operating table (1) is provided with a feeding port (4), and a collection box (3) is provided below the feeding port (4). Four support legs (2) are fixedly provided on the lower surface of the operating table (1).

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