A high-efficiency injection molding device

Abstract

The utility model discloses a kind of high-efficiency injection molding devices, including base, the upper surface of the base is fixedly connected with support frame, installation hole is opened in support frame, and fixedly connected with melting pipe in installation hole, the top of support frame is equipped with feeding assembly, the upper surface of the base is fixedly connected with frame, and melting pipe passes through frame, the top of the frame is fixedly connected with U-shaped plate, dovetail groove is opened in the bottom of U-shaped plate, dovetail block is slidably connected in dovetail groove, driving assembly is equipped in dovetail groove, the bottom of the dovetail block is fixedly connected with L-shaped frame, L-shaped frame bottom is fixedly connected with the cover plate that is combined with melting pipe. The utility model not only can automatically clean inside melting pipe, save time, improve efficiency, but also can scrape the inner wall of material containing box, avoid raw materials to adhere on the inner wall of material containing box, save raw materials.

Description

Technical Field

[0001] This utility model relates to the field of injection molding technology, and in particular to a high-efficiency injection molding device. Background Technology

[0002] Injection molding is a mass production and high-efficiency manufacturing process that involves injecting molten plastic into a mold under high pressure and then cooling it to obtain a product of a specific shape. It is a process of molding molten raw materials into a mold.

[0003] A search revealed that CN218429626U discloses a convenient and efficient injection molding machine, including a base plate. A mounting frame is provided on one side of the top surface of the base plate, and a material conveying box is mounted on the mounting frame. A motor is mounted on the top surface of the material conveying box. However, this machine cannot perform material distribution injection molding, making it inconvenient to produce products with different colors and difficult to clean the inside of the device, thus reducing efficiency. To better address these problems, promote the development of industry technology, and improve core competitiveness, this application proposes a new structural design that differs from existing technologies. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-efficiency injection molding device.

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

[0006] A high-efficiency injection molding device includes a base, a support frame fixedly connected to the upper surface of the base, an installation hole provided in the support frame, a molten tube fixedly connected in the installation hole, a feeding assembly provided at the top of the support frame, a frame fixedly connected to the upper surface of the base, and the molten tube passing through the frame, a U-shaped plate fixedly connected to the top of the frame, a dovetail groove provided at the bottom of the U-shaped plate, a dovetail block slidably connected in the dovetail groove, a driving assembly provided in the dovetail groove, an L-shaped frame fixedly connected to the bottom of the dovetail block, a cover plate fixedly connected to the bottom of the L-shaped frame that fits against the molten tube, a feed screw extending into the molten tube rotatably connected to one side of the cover plate, and a scraping component fitted against the inner wall of the molten tube at the end of the feed screw;

[0007] The scraping component consists of two connecting rods and two arc-shaped scrapers. The two connecting rods are fixedly connected to the ends of the feed screw, and the two arc-shaped scrapers are fixedly connected to both sides of the connecting rods, so that the connecting rods and arc-shaped scrapers combine to form an annular structure that fits against the inner wall of the melting tube.

[0008] As a further embodiment of this utility model, the feeding assembly includes multiple material containers, the bottom of which is a conical structure. A connecting frame is fixedly connected to one side of the support frame, and the multiple material containers are all fixedly connected inside the connecting frame. A feed box is fixedly connected to the top of the melting tube, and a feed pipe connected to the multiple material containers is fixedly connected to the top of the feed box. Multiple high-temperature solenoid valves corresponding to the material containers are provided on the outside of the feed pipe.

[0009] As a further embodiment of this utility model, each of the multiple material containers is provided with a pressure block that is adapted to the inner wall of the material container. The top of the support frame is fixedly connected with multiple electric push rods that correspond one-to-one with the material containers. The telescopic parts of the multiple electric push rods pass through the support frame and are fixed to the multiple pressure blocks respectively.

[0010] As a further embodiment of this utility model, the drive assembly includes a threaded rod, which is rotatably connected to a dovetail groove via a bearing. The threaded rod passes through a dovetail block and is threadedly connected to the dovetail block. One end of the threaded rod passes through a U-shaped plate and is fixedly connected to a throttle handle.

[0011] As a further embodiment of this invention, a locking nut is threaded onto the outer side of the threaded rod, located outside the U-shaped plate.

[0012] As a further embodiment of this utility model, the upper surface of the base is provided with a discharge port located within the frame, and the bottom of the base is provided with a receiving box located below the discharge port. Support plates are fixedly connected to both sides of the receiving box, and L-shaped plates that support the support plates are fixedly connected to both sides of the bottom of the base located at the discharge port.

[0013] As a further embodiment of this utility model, an electromagnet is fixedly connected to the bottom of the base, and the electromagnet is attracted to the receiving box.

[0014] As a further embodiment of this utility model, a groove is provided at one end of the melting tube near the cover plate, a sealing ring that matches the groove is fixedly connected to one side of the cover plate, a protective cover is fixedly connected to the other side of the cover plate, and the motor is located inside the protective cover.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. In this utility model, the feeding assembly can dispense material into the melting tube for injection molding, thereby facilitating the production of injection molded products of different colors. At the same time, when cleaning is required, the cover plate can be moved away from the melting tube. At this time, the scraping component will scrape and clean the material on the inner wall of the melting tube, and the brush will clean the material on the feeding screw, thereby performing automatic cleaning, saving time and improving efficiency.

[0017] 2. In this utility model, by setting up the pressure block, when the material container is fed, the corresponding electric push rod is activated, which pushes the pressure block to move downward, so that the pressure block squeezes the raw material in the material container, thereby assisting in the discharge. At the same time, the pressure block scrapes the inner wall of the material container to prevent the raw material from adhering to the inner wall of the material container, thus saving raw materials. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a high-efficiency injection molding device proposed in this utility model;

[0019] Figure 2 This is an enlarged cross-sectional view of the melt tube structure of a high-efficiency injection molding device proposed in this utility model;

[0020] Figure 3 This is a partial cross-sectional view of a high-efficiency injection molding device proposed in this utility model;

[0021] Figure 4 This is an enlarged cross-sectional view of the melt tube of a high-efficiency injection molding device proposed in this utility model.

[0022] Figure 5 This utility model proposes a high-efficiency injection molding device. Figure 4 A partially enlarged structural diagram;

[0023] Figure 6 This is an enlarged exploded view of the receiving box of a high-efficiency injection molding device proposed in this utility model.

[0024] In the diagram: 1. Base; 2. Melting tube; 3. Feed box; 4. Feed pipe; 5. Material container; 6. Electric push rod; 7. Support frame; 8. U-shaped plate; 9. Frame; 10. Receiving box; 11. Electromagnet; 12. Connecting frame; 13. Pressing block; 14. High-temperature solenoid valve; 15. Scraping component; 16. Feed screw; 17. L-shaped frame; 18. Dovetail block; 19. Dovetail groove; 20. Threaded rod; 21. Discharge port; 22. Connecting rod; 23. Arc-shaped plate; 25. Cover plate; 26. L-shaped plate; 27. Support plate. Detailed Implementation

[0025] 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. The described embodiments are only some embodiments of the present utility model, not all embodiments. Other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are all within the protection scope of the present utility model.

[0026] Reference Figures 1-6A high-efficiency injection molding device includes a base 1, a support frame 7 welded to the upper surface of the base 1, an installation hole opened in the support frame 7, and a melting tube 2 welded into the installation hole.

[0027] The top of the support frame 7 is equipped with a feeding assembly for distributing and injecting material into the melting tube 2. The feeding assembly includes multiple material collection boxes 5, each with a conical bottom and a feeding port. A connecting frame 12 is welded to one side of the support frame 7. The multiple material collection boxes 5 are all fixed to the connecting frame 12 by bolts. The top of the melting tube 2 is fixed with a feeding box 3 by bolts. The top of the feeding box 3 is welded with a feeding pipe 4 that communicates with the multiple material collection boxes 5. Multiple high-temperature solenoid valves 14, each corresponding to a material collection box 5, are provided on the outside of the feeding pipe 4. It should be noted that the model of the high-temperature solenoid valve 14 is ZCZH-1.6-DN50-1-YBK.

[0028] When in use, put the raw materials of different colors into the material box 5 respectively. When feeding, open the high temperature solenoid valve 14 corresponding to the material box 5 to be used. At this time, the raw materials in the material box 5 will enter the feeding box 3 through the feeding pipe 4 and then enter the melting tube 2.

[0029] A heating element can also be installed on the melting tube 2 for heat preservation;

[0030] In this utility model, each of the multiple material containers 5 is provided with a pressure block 13 that is adapted to the inner wall of the material container 5. The top of the support frame 7 is fixed with multiple electric push rods 6 that correspond one-to-one with the material containers 5 by bolts. The telescopic parts of the multiple electric push rods 6 pass through the support frame 7 and are fixed to the multiple pressure blocks 13 respectively.

[0031] During the feeding process, the corresponding electric push rod 6 is activated, which pushes the pressure block 13 to move downward. The pressure block 13 squeezes the raw material in the material box 5, thereby assisting in the discharge of the raw material in the material box 5. At the same time, the pressure block 13 scrapes and cleans the inner wall of the material box 5, thereby preventing the raw material from adhering to the material box 5 and saving raw materials.

[0032] In this utility model, a frame 9 is welded to the upper surface of the base 1, and the melting tube 2 passes through the frame 9. A U-shaped plate 8 is welded to the top of the frame 9, and a dovetail groove 19 is opened at the bottom of the U-shaped plate 8. A dovetail block 18 is slidably connected in the dovetail groove 19. An L-shaped frame 17 is welded to the bottom of the dovetail block 18. A cover plate 25 that fits against the melting tube 2 is welded to the bottom of the L-shaped frame 17. A feed screw 16 extending into the melting tube 2 is rotatably connected to one side of the cover plate 25 through a bearing. The spiral blades of the feed screw 16 are in contact with the inner wall of the melting tube 2.

[0033] When the raw material enters the melting tube 2, the motor drives the feed screw 16 to rotate. The feed screw 16 drives the raw materials of different colors to mix and melt in the melting tube 2, thus completing the color adjustment. Then, the raw material is extruded into the mold through the melting tube 2 to achieve injection molding.

[0034] It should be noted that the end of the feed screw 16 is provided with a scraping component 15 that fits against the inner wall of the melting tube 2. The scraping component consists of two connecting rods 22 and two arc-shaped scrapers 23. The two connecting rods 22 are welded to the end of the feed screw 16, and the two arc-shaped scrapers 23 are welded to both sides of the connecting rods 22, so that the connecting rods 22 and the arc-shaped scrapers 23 combine to form an annular structure that fits against the inner wall of the melting tube 2. The connecting rods 22 and the arc-shaped scrapers 23 are both made of stainless steel, and the thickness of the connecting rods 22 and the arc-shaped scrapers 23 is 1-2cm, so that the connecting rods 22 and the arc-shaped scrapers 23 will not have a heavy weight, and will not affect the scraping and cleaning of the connecting rods 22 and the arc-shaped scrapers 23.

[0035] Furthermore, the outer sides of the connecting rod 22, the arc-shaped scraper 23, and the feed screw 16 are all coated with an anti-adhesion coating. The anti-adhesion coating is any one of fluorinated resin coating, epoxy resin-based coating, special high-temperature resistant coating, or nano-composite coating, thereby preventing materials from adhering to the connecting rod 22, the arc-shaped scraper 23, and the feed screw 16.

[0036] In this utility model, a drive assembly for moving the drive cover plate 25 is provided in the dovetail groove 19. The drive assembly includes a threaded rod 20, which is rotatably connected in the dovetail groove 19 through a bearing. The threaded rod 20 passes through the dovetail block 18 and is threadedly connected to the dovetail block 18. One end of the threaded rod 20 passes through the U-shaped plate 8 and is fixed with a handle by bolts.

[0037] When cleaning is required after injection molding, rotate the threaded rod 20. The threaded rod 20 will drive the dovetail block 18 to move along the dovetail groove 19. The dovetail block 18 will drive the L-shaped frame 17 to move. The L-shaped frame 17 will drive the cover plate 25 to move. The cover plate 25 will drive the feed screw 16 to move out of the melt tube 2. The feed screw 16 will drive the arc-shaped scraper 23 to move out of the melt tube 2 through the connecting rod 22. Thus, the connecting rod 22 and the arc-shaped scraper 23 will scrape and clean the inner wall of the melt tube 2 and scrape the raw material out of the melt tube 2.

[0038] In this invention, a locking nut is threaded onto the outer side of the threaded rod 20, located outside the U-shaped plate 8. When the cover plate 25 is in contact with the molten tube 2, the locking nut is tightened to lock and fix the threaded rod 20, thereby preventing the threaded rod 20 from rotating and ensuring a tight fit between the cover plate 25 and the molten tube 2. A groove is provided at one end of the molten tube 2 near the cover plate 25, and a sealing ring that matches the groove is bonded to one side of the cover plate 25. When the cover plate 25 is in contact with the molten tube 2, the sealing ring will enter the groove, thereby sealing the gap between the cover plate 25 and the molten tube 2.

[0039] In this utility model, a discharge port 21 is provided on the upper surface of the base 1 within the frame 9. A receiving box 10 is provided at the bottom of the base 1 below the discharge port 21. The cleaned raw materials will fall into the receiving box 10 through the discharge port 21, so that the receiving box 10 can collect the raw materials uniformly and avoid waste. Support plates 27 are welded on both sides of the receiving box 10. L-shaped plates 26 supporting the support plates 27 are welded on both sides of the bottom of the base 1 at the discharge port 21. An electromagnet 11 is fixed to the bottom of the base 1 by bolts, and the electromagnet 11 is attracted to the receiving box 10. The receiving box 10 is fixed by the attraction between the electromagnet 11 and the receiving box 10, so as to prevent the receiving box 10 from moving. When it is necessary to remove the receiving box 10, the electromagnet 11 is de-energized, and the receiving box 10 can be pulled to move. A protective cover is welded on the other side of the cover plate 25, and the motor is located inside the protective cover.

[0040] It should be noted that in this application, the motor is connected to an external power source via a spring wire, which ensures the normal operation of the motor when it is moving.

[0041] Working principle: During use, raw materials of different colors are placed into the material holding box 5, and then the electric push rod 6 is activated to extend. The electric push rod 6 pushes the pressure block 13 into the material holding box 5. When feeding is required, the high-temperature solenoid valve 14 corresponding to the material holding box 5 is opened. At this time, the raw materials in the material holding box 5 will enter the feeding box 3 through the feeding pipe 4, and then enter the melting tube 2. At the same time, the corresponding electric push rod 6 is activated, and the electric push rod 6 will push the pressure block 13 to move downward. The pressure block 13 will squeeze the raw materials in the material holding box 5, thereby assisting in the discharge of the raw materials in the material holding box 5. At the same time, the pressure block 13 will scrape and clean the inner wall of the material holding box 5, thereby preventing the raw materials from adhering to the material holding box 5 and saving raw materials. Then, the motor drives the feeding screw 16 to rotate. The feeding screw 16 drives the raw materials of different colors to mix and melt in the melting tube 2, completing the color adjustment. Then, it is extruded into the mold through the melting tube 2 to realize injection molding.

[0042] When cleaning is required after injection molding, rotate the threaded rod 20. The threaded rod 20 will drive the dovetail block 18 to move along the dovetail groove 19. The dovetail block 18 will drive the L-shaped frame 17 to move. The L-shaped frame 17 will drive the cover plate 25 to move. The cover plate 25 will drive the feed screw 16 to move out of the melt tube 2. The feed screw 16 will drive the arc-shaped scraper 23 to move out of the melt tube 2 through the connecting rod 22. Thus, the connecting rod 22 and the arc-shaped scraper 23 will scrape and clean the inner wall of the melt tube 2 and scrape the raw material out of the melt tube 2.

[0043] The cleaned raw materials will fall into the collection box 10 through the discharge port 21, so that the collection box 10 can collect the raw materials in a unified manner and avoid waste.

[0044] Furthermore, the terms "installation," "setup," "connection," and "socketing" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral constructions; they can refer to mechanical or electrical connections; they can refer to direct connections or indirect connections via an intermediate medium, or internal connections between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

Claims

1. A high-efficiency injection molding device, comprising a base (1), characterized in that, A support frame (7) is fixedly connected to the upper surface of the base (1). An installation hole is provided in the support frame (7), and a melting tube (2) is fixedly connected in the installation hole. A feeding component is provided at the top of the support frame (7). A frame (9) is fixedly connected to the upper surface of the base (1), and the melting tube (2) passes through the frame (9). A U-shaped plate (8) is fixedly connected to the top of the frame (9). A dovetail groove (19) is provided at the bottom of the U-shaped plate (8). A dovetail block (18) is slidably connected in the dovetail groove (19). A driving component is provided in the dovetail groove (19). An L-shaped frame (17) is fixedly connected to the bottom of the dovetail block (18). A cover plate (25) that fits against the melting tube (2) is fixedly connected to the bottom of the L-shaped frame (17). A feed screw (16) that extends into the melting tube (2) is rotatably connected to one side of the cover plate (25). A scraping component (15) that fits against the inner wall of the melting tube (2) is provided at the end of the feed screw (16). The scraping component consists of two connecting rods (22) and two arc-shaped scrapers (23). The two connecting rods (22) are fixedly connected to the ends of the feed screw (16), and the two arc-shaped scrapers (23) are fixedly connected to both sides of the connecting rods (22), so that the connecting rods (22) and the arc-shaped scrapers (23) are combined to form an annular structure that fits against the inner wall of the melting tube (2).

2. The high-efficiency injection molding apparatus according to claim 1, characterized in that, The feeding assembly includes multiple material containers (5), the bottom of the multiple material containers (5) is a conical structure, a connecting frame (12) is fixedly connected to one side of the support frame (7), the multiple material containers (5) are all fixedly connected in the connecting frame (12), the top of the melting tube (2) is fixedly connected to the feed box (3), the top of the feed box (3) is fixedly connected to the feed pipe (4) which communicates with the multiple material containers (5), and the outside of the feed pipe (4) is provided with multiple high temperature solenoid valves (14) corresponding to the material containers (5).

3. The high-efficiency injection molding apparatus according to claim 2, characterized in that, Each of the multiple material containers (5) is provided with a pressure block (13) that is adapted to the inner wall of the material container (5). The top of the support frame (7) is fixedly connected with multiple electric push rods (6) that correspond one-to-one with the material container (5). The telescopic parts of the multiple electric push rods (6) pass through the support frame (7) and are fixed to the multiple pressure blocks (13) respectively.

4. The high-efficiency injection molding apparatus according to claim 1, characterized in that, The drive assembly includes a threaded rod (20), which is rotatably connected to a dovetail groove (19) via a bearing. The threaded rod (20) passes through a dovetail block (18) and is threadedly connected to the dovetail block (18). One end of the threaded rod (20) passes through a U-shaped plate (8) and is fixedly connected to a throttle.

5. The high-efficiency injection molding apparatus according to claim 4, characterized in that, A locking nut is threaded onto the outer side of the threaded rod (20) outside the U-shaped plate (8).

6. The high-efficiency injection molding apparatus according to claim 1, characterized in that, The upper surface of the base (1) is provided with a discharge port (21) located inside the frame (9). The bottom of the base (1) is provided with a receiving box (10) located below the discharge port (21). Support plates (27) are fixedly connected to both sides of the receiving box (10). L-shaped plates (26) that support the support plates (27) are fixedly connected to both sides of the bottom of the base (1) located at the discharge port (21).

7. The high-efficiency injection molding apparatus according to claim 5, characterized in that, An electromagnet (11) is fixedly connected to the bottom of the base (1), and the electromagnet (11) is attracted to the receiving box (10).

8. The high-efficiency injection molding apparatus according to claim 1, characterized in that, The melting tube (2) has a groove at one end near the cover plate (25). A sealing ring that matches the groove is fixedly connected to one side of the cover plate (25). A protective cover is fixedly connected to the other side of the cover plate (25), and the motor is located inside the protective cover.

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