Injection molding material stirrer

Abstract

The utility model discloses an injection molding material stirrer belonging to the technical field of stirrers. The injection molding material stirrer comprises a stirring barrel, a top cover is arranged at the top of the stirring barrel, a stirring motor is fixedly mounted at the top of the top cover, a turntable is movably connected to the bottom of the top cover through a shaft sleeve, turning motors are embedded around the bottom of the turntable, and second rotating rods are fixedly connected to the tail ends of output shafts of the turning motors. The periphery of the bottom end of the second rotating rod is fixedly sleeved with an auger, a fixing frame is further arranged on the periphery of the bottom of the rotating disc, the fixing frame is sleeved with a rubber sleeve, and the rotating disc is arranged at the bottom of the top cover. The bottom of the rotating disc is provided with the auger driven by the turning motor to achieve the purpose of turning, materials at the bottom are turned to the upper layer, stirring of the stirring rod is matched, the stirring efficiency is greatly improved, the materials can be fully fused, injection molding materials are rapidly formed, and the phenomenon that the materials at the bottom are difficult to fully stir is avoided. And the phenomenon of precipitation is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of mixers, and particularly relates to an injection plastic mixer. Background Art

[0002] Plastic, as an important synthetic polymer material, has attracted much attention for its unique plasticity. It is listed together with synthetic rubber and synthetic fibers as the three indispensable synthetic materials in people's daily life today, jointly building the material foundation of modern society. Plastic mainly consists of natural or synthetic resin as the main component, and various additives are added to improve its performance. Under certain temperature and pressure conditions, plastic can be molded into various shapes to meet the needs of different fields. Once molded, at room temperature, plastic can maintain its shape unchanged, showing its excellent stability and durability.

[0003] The wide application of plastic is not only reflected in various plastic products in daily life, such as plastic bags, plastic bottles, plastic tableware, etc., but also involves multiple fields such as industry, agriculture, and medicine. Its excellent performance and plasticity make plastic one of the indispensable important materials in modern society.

[0004] In the patent "A Stirring Mechanism of an Injection Molding Machine" (publication number CN213732739U, hereinafter referred to as the prior art 1), a stirring mechanism is disclosed. In the prior art 1, a rotating shaft and a stirring roller are arranged inside the hopper to cooperate and stir the materials inside the silo. In the prior art 1, the stirred materials are fed through a spiral knife arranged in the feed port. Although the stirring rollers in the prior art 1 are arranged in a spiral shape as a whole, due to the relatively smooth surface of the stirring rollers and their inability to drive the materials upward, the materials can only be stirred downward or in place. The stirring of the stirring rollers in the prior art 1 will cause the materials added first and the materials added later to be unable to be fully mixed. The materials added first will only be stirred at the bottom, and the bottom-layer materials are difficult to surge to the upper layer and cannot be mixed with the materials added later, and sedimentation is likely to occur. Moreover, the stirring rollers cannot scrape the materials on the inner wall of the hopper, which will also cause the materials to adhere to the inner wall and be difficult to clean, resulting in waste of materials. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an injection plastic mixer to solve the problem that the bottom-layer materials in the prior art are difficult to surge to the upper layer and are prone to sedimentation.

[0006] To achieve the above object, the present utility model provides the following technical solution: An injection plastic stirrer, comprising a stirring barrel, a top cover and an auger. A top cover is provided at the top of the stirring barrel. A stirring motor is fixedly installed on the top of the top cover. A turntable is connected to the bottom of the top cover. The end of the output shaft of the stirring motor is connected to the center position at the top of the turntable. Four turning motors are fixed around the bottom of the turntable. The end of the output shaft of the turning motor is connected to a second rotating rod. A spiral auger is fixedly sleeved on the outer periphery of the bottom end of the second rotating rod. A fixing frame is further provided on the outer periphery of the bottom of the turntable. A rubber sleeve is sleeved outside the fixing frame. The rubber sleeve is in close contact with the inner wall of the stirring barrel. The bottom of the second rotating rod is connected to the fixing frame through a bearing.

[0007] Preferably, a triangular scraping plate is provided on the outer side of the fixing frame. One end of the triangular scraping plate has a triangular cross-section and is in close contact with the rubber sleeve. The other end of the triangular scraping plate extends into the fixing frame and is slidably connected to its inner wall. A top spring is provided inside the fixing frame. Both ends of the top spring are fixedly connected to the fixing frame and the triangular scraping plate respectively.

[0008] Preferably, a limiting block is fixedly installed at one end of the triangular scraping plate extending into the fixing frame. Limiting grooves are opened on both sides inside the fixing frame. The limiting block extends into the limiting grooves and is slidably connected to their inner walls.

[0009] Preferably, a first rotating rod is fixedly installed at the center position of the bottom of the turntable. A plurality of layers of stirring rods are fixedly welded on the outer periphery of the first rotating rod. The plurality of layers of stirring rods are arranged around the first rotating rod for one week.

[0010] Preferably, a base is fixedly installed at the bottom of the stirring barrel. Support frames are fixedly installed on both sides of the top of the base by welding. The support frames are in an inverted U-shaped structure. An electric push rod is fixedly installed on the inner top wall of the support frames. The bottom end of the electric push rod is fixedly connected to both sides of the top of the top cover.

[0011] Preferably, a discharge port is provided at the bottom end on one side of the stirring barrel. The discharge port extends to the bottom end inside the stirring barrel and is hermetically communicated with its inside.

[0012] Preferably, a control panel is provided on one side of the outside of the support frame. The control panel is fixedly installed on one side of the outside of the support frame by embedding.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] The injection molding compound stirrer realizes the purpose of turning over the material by setting a turntable at the bottom of the top cover and arranging an auger driven by a turning-over motor at the bottom of the turntable, turning over the material at the bottom to the upper layer, and cooperating with the stirring of the stirring rod, greatly improving the stirring efficiency, enabling the materials to be fully fused, so as to quickly form injection molding compound, and avoiding the phenomenon that the materials at the bottom layer are difficult to be fully stirred, resulting in precipitation. The injection molding compound stirrer sets a fixing frame on the outer periphery of the bottom of the turntable. Under the action of the ejecting spring, the triangular scraper is pushed to extend outwards, unfolding the rubber sleeve, so that the rubber sleeve can be in close contact with the inner wall of the stirring barrel. The inner part of the stirring barrel is scraped by the rubber sleeve lifted by the triangular scraper, scraping off the materials adhering to the inner wall of the stirring barrel, and avoiding condensation and difficult cleaning. Brief Description of the Drawings

[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 is a schematic diagram of the bottom structure of the turntable of the present utility model;

[0017] Figure 3 is a schematic diagram of the triangular scraper structure of the present utility model.

[0018] In the figure: 1, stirring barrel; 2, discharge port; 3, top cover; 4, stirring motor; 5, turntable; 6, first rotating rod; 7, stirring rod; 8, second rotating rod; 9, auger; 10, turning-over motor; 11, bearing; 12, fixing frame; 13, rubber sleeve; 14, triangular scraper; 15, ejecting spring; 16, limiting groove; 17, limiting block; 18, base; 19, support frame; 20, electric push rod; 21, control panel. Detailed Description of the Embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Embodiment 1

[0021] Please refer to Figure 1 , the present utility model provides a technical solution for an injection molding compound stirrer: including a stirring barrel 1, a top cover 3 and an auger 9. A top cover 3 is arranged at the top of the stirring barrel 1. A stirring motor 4 is fixedly installed at the top of the top cover 3. The bottom of the top cover 3 is movably connected to a turntable 5 through a bushing. The end of the output shaft of the stirring motor 4 is fixedly connected to the center position of the top of the turntable 5. Please refer to Figure 2, around the bottom of the turntable 5, there are feeding motors 10 fixedly embedded. The end of the output shaft of the feeding motor 10 is fixedly connected to a second rotating rod 8. A screw conveyor 9 is fixedly sleeved on the outer periphery of the bottom end of the second rotating rod 8. A fixing frame 12 is also arranged on the outer periphery of the bottom of the turntable 5. A rubber sleeve 13 is sleeved outside the fixing frame 12. The rubber sleeve 13 is in close contact with the inner wall of the mixing barrel 1. The bottom of the second rotating rod 8 is movably connected to the fixing frame 12 through a bearing 11.

[0022] Please refer to Figure 3 , a triangular scraping plate 14 is arranged on the outside of the fixing frame 12. One end of the triangular scraping plate 14 has a triangular cross-section and is in close contact with the rubber sleeve 13. The other end of the triangular scraping plate 14 extends into the fixing frame 12 and is slidably connected to its inner wall. A jacking spring 15 is arranged inside the fixing frame 12. The two ends of the jacking spring 15 are respectively fixedly connected to the fixing frame 12 and the triangular scraping plate 14.

[0023] Specifically, a limiting block 17 is fixedly installed at one end of the triangular scraping plate 14 extending into the fixing frame 12. Limiting grooves 16 are opened on both sides inside the fixing frame 12. The limiting block 17 extends into the limiting grooves 16 and is slidably connected to their inner walls.

[0024] Specifically, a first rotating rod 6 is fixedly installed at the center position of the bottom of the turntable 5. A plurality of layers (such as 4 layers) of stirring rods 7 are fixedly welded on the outer periphery of the first rotating rod 6. The plurality of layers of stirring rods 7 are arranged around the first rotating rod 6 for one week.

[0025] Specifically, a base 18 is fixedly installed at the bottom of the mixing barrel 1. On both sides of the top of the base 18, support frames 19 are fixedly installed by welding. The support frames 19 are of an inverted U-shaped structure. An electric push rod 20 is fixedly installed on the inner top wall of the support frames 19. The bottom end of the electric push rod 20 is fixedly connected to both sides of the top of the top cover 3.

[0026] Specifically, a discharge port 2 is arranged at the bottom end of one side of the mixing barrel 1. The discharge port 2 extends to the inner bottom end of the mixing barrel 1 and is hermetically communicated with its interior.

[0027] Specifically, a control panel 21 is arranged on one side of the outside of the support frame 19. The control panel 21 is fixedly installed on one side of the outside of the support frame 19 by embedding.

[0028] Please refer to Figure 1 , in this implementation scheme, during use, the electric push rod 20 at the inner top of the support frame 19 is used to drive the top cover 3 to lift and lower to realize its opening and closing function. During stirring, the stirring motor 4 is used to drive the turntable 5 to rotate, so that the turntable 5 drives the first rotating rod 6, the stirring rods 7, the second rotating rod 8, the screw conveyor 9 and the fixing frame 12 at the bottom to rotate synchronously, thereby realizing the stirring of the injection molding compound. Please refer to Figure 2, a multi-stage stirring method is adopted to improve the stirring efficiency. At the same time, the turning motor 10 is used to drive the second rotating rod 8 to rotate self-rotation while following the turntable 5 to rotate, so as to drive the auger 9 to rotate self-rotation. The auger 9 is used to turn the injection molding material, turning the bottom material to the upper layer to facilitate the full fusion of the materials. During the stirring process, under the thrust of the ejecting spring 15, the triangular scraping plate 14 outside the fixed frame 12 extends the rubber sleeve 13 outwards, making the rubber sleeve 13 in close contact with the inner wall of the stirring barrel 1. Thus, during the rotation of the fixed frame 12, the materials adhered to the inner wall surface of the stirring barrel 1 are scraped off, avoiding the situation that the materials adhere to the inner wall surface of the stirring barrel 1 and form condensation during the discharging process, which is difficult to clean.

[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection molding agitator, comprising a mixing barrel (1), a top cover (3) and an auger (9), characterized in that: The top of the stirring barrel (1) is provided with a top cover (3), and a stirring motor (4) is fixedly mounted on the top of the top cover (3); The bottom of the top cover (3) is connected to a turntable (5), the output shaft end of the stirring motor (4) is connected to the top center of the turntable (5), a material turning motor (10) is fixed around the bottom of the turntable (5), the output shaft end of the material turning motor (10) is connected to a second rotating rod (8), and a screw auger (9) is fixedly sleeved on the outer periphery of the bottom end of the second rotating rod (8); A fixing frame (12) is also provided on the outer periphery of the bottom of the rotating disk (5), and a rubber sleeve (13) is provided on the outside of the fixing frame (12), and the rubber sleeve (13) is in close contact with the inner wall of the mixing barrel (1), and the bottom of the second rotating rod (8) is connected to the fixing frame (12) via a bearing (11).

2. The injection molding agitator according to claim 1, characterized in that: A triangular scraper (14) is arranged on the outside of the fixing frame (12); one end of the triangular scraper (14) has a triangular cross-section and is in close contact with the rubber sleeve (13); the other end of the triangular scraper (14) extends into the interior of the fixing frame (12) and is slidably connected to the inner wall thereof; an ejection spring (15) is arranged inside the fixing frame (12); two ends of the ejection spring (15) are respectively fixedly connected to the fixing frame (12) and the triangular scraper (14).

3. The injection molding stirrer according to claim 2, characterized in that: A limiting block (17) is fixedly installed at one end of the triangular scraper (14) extending to the interior of the fixing frame (12), limiting grooves (16) are provided on both sides of the interior of the fixing frame (12), and the limiting block (17) extends to the interior of the limiting groove (16) and is slidably connected to the inner wall of the limiting groove.

4. The injection molding stirrer according to claim 1, characterized in that: A first rotating rod (6) is fixedly mounted at the center of the bottom of the rotating disk (5), and a plurality of stirring rods (7) are fixedly welded to the outer periphery of the first rotating rod (6), wherein the plurality of stirring rods (7) are arranged around the first rotating rod (6).

5. The injection molding agitator according to claim 1, characterized in that: A base (18) is fixedly mounted on the bottom of the mixing barrel (1), and support frames (19) are fixedly mounted on both sides of the top of the base (18) by welding, wherein the support frame (19) is an inverted U-shaped structure, and an electric push rod (20) is fixedly mounted on the inner top wall of the support frame (19), and the bottom end of the electric push rod (20) is fixedly connected to both sides of the top of the top cover (3).

6. The injection molding stirrer according to claim 1, characterized in that: A discharge port (2) is provided at the bottom end of one side of the outside of the mixing barrel (1), and the discharge port (2) extends to the bottom end of the inside of the mixing barrel (1) and is sealed and connected to the inside of the mixing barrel (1).

7. The injection molding stirrer according to claim 5, characterized in that: A control panel (21) is provided on one side of the exterior of the support frame (19), and the control panel (21) is fixedly mounted on one side of the exterior of the support frame (19).

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