Injection molding machine with layered stirring type raw material preheating mechanism

Abstract

The invention discloses an injection molding machine provided with a layered stirring type raw material preheating mechanism, and relates to the technical field of injection molding machines. Comprising a machine body, a stirring assembly is arranged on the side face of the machine body and comprises a heat preservation tank, a plurality of supporting legs are fixed to the lower portion of the heat preservation tank, a groove block is fixed to the bottom of the heat preservation tank, a conical groove is formed in the groove block, a fixing rod is fixed to the groove block, a rotating shaft is rotationally arranged above the fixing rod, and a cover plate is fixed to the upper portion of the heat preservation tank; a connecting shaft is rotatably arranged below the cover plate, a vertical plate is fixed above the cover plate, a connecting plate is fixed above the vertical plate, a rotating motor is fixed above the connecting plate, a heating assembly is arranged in the heat preservation tank, and a feeding assembly is arranged above the machine body. Through combination of various stirring parts, multi-layer all-directional stirring of raw materials is achieved, and the mixing uniformity is improved; the design of the annular cylinder increases the contact area, realizes rapid and uniform heating of the raw materials, shortens the preheating time, and can dry the thrown raw materials at the same time.

Description

Technical Field

[0001] This invention relates to the field of injection molding machine technology, specifically to an injection molding machine equipped with a layered stirring type raw material preheating mechanism. Background Technology

[0002] In existing injection molding machine technology, raw material mixing is often insufficient, resulting in poor mixing uniformity and affecting the quality of injection molded products; raw material preheating efficiency is low and preheating time is long, failing to meet the demands of high-efficiency production; the transmission method during raw material conveying is not stable enough and is easily affected by the impact of motor start-up and operation; the feeding method is mostly manual, which is inefficient and prone to raw material contamination, making it difficult to accurately control the feeding amount and time; the injection molding machine has poor flexibility and is difficult to adapt to different production scenarios and process requirements; equipment maintenance and operation are inconvenient, the machine body has insufficient stability, affecting injection molding accuracy and product quality, and the equipment has a short service life. Summary of the Invention

[0003] The purpose of this invention is to provide an injection molding machine equipped with a layered stirring type raw material preheating mechanism to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an injection molding machine equipped with a layered stirring raw material preheating mechanism, comprising a machine body, a stirring assembly disposed on the side of the machine body, the stirring assembly comprising a heat preservation tank, several legs fixed below the heat preservation tank, a trough block fixed at the bottom of the heat preservation tank, a conical groove formed on the trough block, a fixing rod fixed on the trough block, the fixing rod having a triangular cross-section, a rotating shaft rotatably disposed above the fixing rod, a cover plate fixed above the heat preservation tank, a connecting shaft rotatably disposed below the cover plate, the connecting shaft and the rotating shaft being fixedly connected, a vertical plate fixed above the cover plate, a connecting plate fixed above the vertical plate, a rotary motor fixed above the connecting plate, a coupling fixed between the output shaft of the rotary motor and the connecting shaft, a connecting pipe connected to the bottom of the heat preservation tank, a heating assembly disposed inside the heat preservation tank, and a feeding assembly disposed above the machine body.

[0005] The machine body is fixed with a partition, which divides the interior of the machine body into an installation compartment and an equipment compartment. The installation compartment is fixed with a conveyor motor, and the equipment compartment is fixed with a feed hopper. A discharge pipe is fixed below the feed hopper, and a conveying pipe is connected below the discharge pipe. A conveying auger is rotatably installed inside the conveying pipe, and a pulley pair is provided between the end of the conveying auger and the output shaft of the conveying motor.

[0006] With the above structure, the partitions rationally divide the internal space of the machine. The installation compartment is used to install power equipment such as the conveyor motor, while the equipment compartment is used to store components related to raw material conveying. When the conveyor motor starts, it drives the conveyor auger to rotate inside the conveying pipe via the pulley pair. The raw material enters from the feed hopper, falls into the conveying pipe through the discharge pipe, and is conveyed forward along the conveying pipe by the rotation of the conveyor auger. The partition design makes the internal structure of the machine more rational, facilitating the installation, maintenance, and management of the equipment. Different types of equipment are placed in different compartments, reducing mutual interference and improving the operational stability of the equipment. The conveyor motor and the conveyor auger are connected by the pulley pair. This transmission method has a simple structure and smooth transmission, which can reliably transmit power to the conveyor auger. Moreover, the pulley pair has a certain buffering and shock absorption effect, which can reduce the impact force during motor start-up and operation, protect the motor and the conveyor auger, and ensure the stability and continuity of raw material conveying.

[0007] A horizontal moving component is provided on the top of the machine body, and a vertical moving component is provided on the horizontal moving component. An opening and closing door is provided on the side of the machine body, and two base support legs are fixed at the bottom of the machine body.

[0008] With the above structure, the lateral and longitudinal moving components work together, using their respective drive devices to move the injection molding machine horizontally and vertically. The opening and closing door is installed on the side of the machine body via hinges or other connections, and can rotate around a fixed axis to open and close. The base support feet directly contact the work platform, supporting the weight of the entire machine body. The lateral and longitudinal moving components increase the flexibility and versatility of the injection molding machine, enabling it to adapt to different production scenarios and process requirements. In multi-station production, the moving components can be used to quickly adjust the injection molding machine to a suitable position, improving production efficiency. The opening and closing door provides convenience for equipment maintenance and operation. When it is necessary to inspect the internal equipment, clean residual materials, or change molds, opening the opening and closing door allows for convenient operation, improving the maintainability and efficiency of the equipment. The two base support feet ensure the stability of the machine body, reasonably distribute the weight of the machine body, reduce vibration during operation, and help improve injection molding accuracy and product quality.

[0009] The rotating shaft is arranged from top to bottom as follows: a circular plate, a rotating stirring blade, a spiral ribbon stirring blade, and a lifting auger. Several overflow ports are opened above the circular plate, and several evenly distributed circumferential spraying blades are fixed above the circular plate. An opening and closing cover is hinged to the cover plate, and an exhaust fan is fixed on the cover plate.

[0010] With the above structure, when the rotating shaft rotates, it drives the circular plate, rotating stirring blades, spiral ribbon stirring blades, and lifting auger to rotate together. The rotating stirring blades and spiral ribbon stirring blades stir the raw materials in the insulation tank in different ways, ensuring thorough mixing. The lifting auger lifts the raw materials from the bottom upwards, promoting vertical circulation. The overflow port on the circular plate provides sufficient flow space for the raw materials during stirring, allowing them to flow down when they accumulate to a certain height. The throwing blades throw some of the raw materials upwards, further enhancing the stirring effect. The lid can be easily opened and closed for adding raw materials or performing other operations. After the exhaust fan is started, it can extract the gas from the insulation tank and regulate the tank. The internal pressure simultaneously discharges volatile gases generated during the heating process of the raw materials; the combined design of multiple stirring components enables multi-level and all-round stirring of the raw materials. The different stirring methods of the rotating stirring blades and the spiral ribbon stirring blades complement each other, improving the mixing uniformity of the raw materials and helping to ensure the quality stability of injection molded products. The auger promotes the vertical circulation of the raw materials, preventing the raw materials from settling at the bottom of the insulated tank, so that the raw materials in the entire tank can be fully stirred and heated. The design of the overflow port and the spray blades enhances the flowability of the raw materials during the stirring process, making the stirring more thorough and further improving the mixing quality of the raw materials. The opening and closing of the lid facilitates the operation of the insulated tank by the operator, improving the convenience of operation.

[0011] The heating assembly includes an annular cylinder with a liquid storage chamber inside. Several circumferentially distributed fixed rods are fixed on the annular cylinder and are fixed inside the heat preservation tank. An outlet pipe and an inlet pipe are fixed on the annular cylinder and are connected to the liquid storage chamber. Both the outlet pipe and the inlet pipe extend through the heat preservation tank.

[0012] With the above structure, the heating medium enters the storage chamber of the annular cylinder through the inlet pipe. During its flow within the storage chamber, it transfers heat to the raw material in the insulation tank, raising the material's temperature. The heated medium then flows out through the outlet pipe, achieving circulation. Fixed rods secure the annular cylinder inside the insulation tank, ensuring its stability and heating effect. The annular cylinder design increases the contact area between the heating medium and the raw material, improving heat transfer efficiency and enabling rapid and uniform heating of the raw material. This shortens the preheating time and increases production efficiency. The fixed rods ensure stable installation of the annular cylinder within the insulation tank, making the heating process more reliable. The evenly distributed circumferential fixed rods ensure uniform stress on the annular cylinder, reducing deformation caused by vibration or temperature changes and extending equipment lifespan. The outlet and inlet pipes enable circulation of the heating medium, continuously providing heat to the raw material and ensuring its temperature stability, which is beneficial for improving the quality of injection molded products.

[0013] The feeding assembly includes a fixing plate, which is fixed above the machine body. A control box is fixed above the fixing plate, a discharge tank is fixed above the fixing plate, and a feed tank is fixed above the discharge tank. A control valve is provided between the feed tank and the discharge tank. A vacuum pump is provided above the feed tank. A feed pipe is connected to the side of the feed tank and is connected to a connecting pipe.

[0014] With the above structure, after the vacuum pump starts, a negative pressure is formed in the feed tank. The raw material is sucked into the feed tank through the feed pipe. When a certain amount of raw material is stored in the feed tank, the control box sends a command to open the control valve, and the raw material falls from the feed tank into the discharge tank, and then enters the machine body for subsequent processing. The vacuum feeding method can quickly and efficiently suck the raw material into the feed tank, improve feeding efficiency, reduce manual operation, and reduce labor intensity. At the same time, vacuum feeding can avoid excessive contact between the raw material and the external environment, reducing the possibility of raw material contamination. The cooperation between the control valve and the control box realizes the automated control of the feeding process, which can accurately control the feeding amount and feeding time, ensuring the continuity and stability of production. By setting the parameters of the control box, the feeding speed and feeding amount can be flexibly adjusted according to production needs.

[0015] Compared with the prior art, the beneficial effects of the present invention are: The combination of multiple mixing components enables multi-level and all-round mixing of raw materials, improving the uniformity of mixing; the annular cylinder design increases the contact area between the heating medium and the raw materials, enabling rapid and uniform heating of the raw materials, shortening the preheating time, and also drying the spilled raw materials; the belt pulley pair drive ensures stable and continuous material conveying; the vacuum feeding method is efficient and reduces pollution, and the automated control ensures continuous and stable production; the horizontal and vertical moving components increase the flexibility and versatility of the injection molding machine; the opening and closing door facilitates equipment maintenance and operation, the base support feet ensure the stability of the machine body, and the fixed round rod extends the service life of the equipment, thus improving overall production efficiency, injection molded product quality, and equipment stability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the front three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the rear three-dimensional structure of the present invention; Figure 3 This is a top view of the structure of the present invention; Figure 4 This is a side view of the structure of the present invention; Figure 5 This is a three-dimensional structural diagram of the feeding component in this invention; Figure 6 This is a front view of the stirring assembly in this invention. Figure 7 This is a schematic diagram of the upper three-dimensional structure of the stirring assembly in this invention; Figure 8 This is a schematic diagram of the lower three-dimensional structure of the stirring assembly in this invention; Figure 9 This is a cross-sectional structural diagram of the stirring assembly in this invention; Figure 10 This is a cross-sectional structural diagram of the present invention.

[0017] In the diagram: 1. Longitudinal moving assembly; 2. Vacuum pump; 3. Feed tank; 4. Discharge tank; 5. Baffle plate; 6. Fixing plate; 7. Machine body; 8. Insulation tank; 9. Opening and closing door; 10. Lateral moving assembly; 11. Installation chamber; 12. Liquid outlet pipe; 13. Liquid inlet pipe; 14. Support leg; 15. Control box; 16. Opening and closing cover; 17. Exhaust fan; 18. Control valve; 19. Vertical plate; 20. Feed pipe; 21. Rotary motor; 22. Connecting pipe; 23. Cover plate; 24. Connecting plate; 25. Annular cylinder; 26. Lifting auger; 27. Spiral ribbon mixing blade; 28. Overflow port; 29. ​​Spraying blade; 30. Circular plate; 31. Coupling; 32. Connecting shaft; 33. Rotating mixing blade; 34. Rotating shaft; 35. Fixed round rod; 36. Trough block; 37. Fixed rod; 38. Feed hopper; 39. Discharge pipe; 40. Conveying auger; 41. Pulley pair; 42. Base support; 43. Conveying pipe; 44. Conveying motor. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] like Figures 1-10 As shown, the present invention provides a technical solution: an injection molding machine equipped with a layered stirring type raw material preheating mechanism, including a machine body 7, a stirring assembly arranged on the side of the machine body 7, the stirring assembly including a heat preservation tank 8, a plurality of support legs 14 fixed below the heat preservation tank 8, a groove block 36 fixed at the bottom of the heat preservation tank 8, a conical groove opened on the groove block 36, a fixing rod 37 fixed on the groove block 36, the fixing rod 37 having a triangular cross section, and a rotating shaft 34 rotatably arranged above the fixing rod 37, the top of the heat preservation tank 8 A cover plate 23 is fixed, and a connecting shaft 32 is rotatably arranged below the cover plate 23. The connecting shaft 32 and the rotating shaft 34 are fixedly connected. A vertical plate 19 is fixed above the cover plate 23, and a connecting plate 24 is fixed above the vertical plate 19. A rotary motor 21 is fixed above the connecting plate 24. A coupling 31 is fixed between the output shaft of the rotary motor 21 and the connecting shaft 32. A connecting pipe 22 is connected to the bottom of the heat preservation tank 8. A heating component is arranged inside the heat preservation tank 8. A feeding component is arranged on the top of the machine body 7.

[0020] A partition 5 is fixed inside the machine body 7, dividing the interior of the machine body 7 into an installation chamber 11 and an equipment chamber. A conveyor motor 44 is fixed inside the installation chamber 11, and a feed hopper 38 is fixed inside the equipment chamber. A discharge pipe 39 is fixed below the feed hopper 38, and a conveying pipe 43 is connected below the discharge pipe 39. A conveying auger 40 is rotatably mounted inside the conveying pipe 43, and a pulley pair 41 is provided between the end of the conveying auger 40 and the output shaft of the conveyor motor 44. The partition 5 rationally divides the internal space of the machine body 7. The installation chamber 11 is used to install power equipment such as the conveyor motor 44, and the equipment chamber is used to store components related to raw material conveying. When the conveyor motor 44 starts, it drives the conveying auger 40 to rotate inside the conveying pipe 43 via the pulley pair 41, and the raw material is conveyed from the conveying auger 40. The material enters through the feed hopper 38 and falls into the conveying pipe 43 through the discharge pipe 39. Under the rotational push of the conveying auger 40, the raw material is conveyed forward along the conveying pipe 43. The partition design of the partition plate 5 makes the internal structure of the machine body 7 more reasonable, which facilitates the installation, maintenance and management of the equipment. Different types of equipment are placed in different compartments, which reduces mutual interference and improves the operational stability of the equipment. The conveying motor 44 and the conveying auger 40 are connected by a pulley pair 41. This transmission method has a simple structure and smooth transmission, which can reliably transmit power to the conveying auger 40. Moreover, the pulley pair 41 has a certain buffering and shock absorption effect, which can reduce the impact force during motor start-up and operation, protect the motor and the conveying auger 40, and ensure the stability and continuity of raw material conveying.

[0021] A horizontal moving assembly 10 is installed on the top of the machine body 7, and a vertical moving assembly 1 is installed on the horizontal moving assembly 10. An opening and closing door 9 is opened on the side of the machine body 7, and two base supports 42 are fixed at the bottom of the machine body 7. The horizontal moving assembly 10 and the vertical moving assembly 1 cooperate with each other, and through their respective drive devices, realize the horizontal and vertical movement of the injection molding machine. The opening and closing door 9 is installed on the side of the machine body 7 by means of hinges or other connections, and can rotate around a fixed axis to open and close. The base supports 42 directly contact the work platform, supporting the weight of the entire machine body 7. The horizontal moving assembly 10 and the vertical moving assembly 1 increase... The injection molding machine is flexible and versatile, adaptable to different production scenarios and process requirements. In multi-station production, the injection molding machine can be quickly adjusted to a suitable position by moving components, improving production efficiency. The opening and closing door 9 provides convenience for equipment maintenance and operation. When it is necessary to inspect the internal equipment of the machine body 7, clean residual raw materials, or replace molds, the opening and closing door 9 can be opened for convenient operation, improving the maintainability and efficiency of the equipment. The two base support legs 42 ensure the stability of the machine body 7, reasonably distribute the weight of the machine body 7, reduce the vibration of the equipment during operation, and help improve injection precision and product quality.

[0022] The rotating shaft 34 is arranged from top to bottom as follows: a circular plate 30, a rotating stirring blade 33, a spiral ribbon stirring blade 27, and a lifting auger 26. Several overflow ports 28 are provided above the circular plate 30, and several evenly distributed circumferential spraying blades 29 are fixed above the circular plate 30. An opening and closing cover 16 is hinged to the cover plate 23, and an exhaust fan 17 is fixed to the cover plate 23. When the rotating shaft 34 rotates, it drives the circular plate 30, the rotating stirring blade 33, the spiral ribbon stirring blade 27, and the lifting auger 26 to rotate together. The rotating stirring blade 33 and the spiral ribbon stirring blade 27 stir the raw materials in the heat-insulating tank 8 in different ways, ensuring thorough mixing. The lifting auger 26 lifts the raw materials at the bottom upwards, promoting vertical circulation. The overflow ports 28 on the circular plate 30 provide sufficient flow space for the raw materials during stirring; when the raw materials accumulate to a certain height, they can flow down from the overflow ports 28. The spraying blades 29 then spray some of the raw materials upwards, further... The design enhances the mixing effect. The lid 16 can be easily opened and closed for adding raw materials or performing other operations. After the exhaust fan 17 is started, it can extract the gas in the heat preservation tank 8, regulate the pressure inside the tank, and simultaneously discharge the volatile gases generated during the heating process of the raw materials. The combination design of multiple mixing components realizes multi-level and all-round mixing of raw materials. The different mixing methods of the rotating mixing blade 33 and the spiral ribbon mixing blade 27 complement each other, improve the mixing uniformity of raw materials, and help ensure the quality stability of injection molded products. The auger 26 promotes the vertical circulation of raw materials, avoids the deposition of raw materials at the bottom of the heat preservation tank 8, and ensures that the raw materials in the entire tank can be fully mixed and heated. The design of the overflow port 28 and the spray blade 29 enhances the flowability of raw materials during the mixing process, making the mixing more thorough and further improving the mixing quality of raw materials. The lid 16 makes it convenient for operators to operate inside the heat preservation tank 8, improving the convenience of operation.

[0023] The heating assembly includes an annular cylinder 25, with a liquid storage chamber inside. Several circumferentially distributed fixed rods 35 are fixed to the annular cylinder 25 and are all fixed inside the insulation tank 8. An outlet pipe 12 and an inlet pipe 13 are fixed to the annular cylinder 25, both connected to the liquid storage chamber and extending through the insulation tank 8. The heating medium enters the liquid storage chamber of the annular cylinder 25 through the inlet pipe 13, transferring heat to the raw material inside the insulation tank 8 during its flow within the liquid storage chamber, thus raising the temperature of the raw material. The heated medium flows out through the outlet pipe 12, achieving circulation of the heating medium. The fixed rods 35 fix the annular cylinder 25 to the insulation tank 8. Internally, the design of the annular cylinder 25 ensures its stability and heating effect. The design of the annular cylinder 25 increases the contact area between the heating medium and the raw material, improving heat transfer efficiency and enabling rapid and uniform heating of the raw material. This shortens the preheating time and increases production efficiency. The fixed rods 35 ensure stable installation of the annular cylinder 25 within the insulation tank 8, making the heating process more reliable. The evenly distributed fixed rods 35 ensure uniform force distribution on the annular cylinder 25, reducing deformation caused by vibration or temperature changes and extending the equipment's service life. The outlet pipe 12 and inlet pipe 13 enable the circulation of the heating medium, continuously providing heat to the raw material and ensuring its temperature stability, which is beneficial for improving the quality of injection molded products.

[0024] The feeding assembly includes a fixed plate 6, which is fixed above the machine body 7. A control box 15 is fixed above the fixed plate 6. A discharge tank 4 is fixed above the fixed plate 6, and a feed tank 3 is fixed above the discharge tank 4. A control valve 18 is installed between the feed tank 3 and the discharge tank 4. A vacuum pump 2 is installed above the feed tank 3. A feed pipe 20 is connected to the side of the feed tank 3 and is connected to a connecting pipe 22. After the vacuum pump 2 is started, a negative pressure is formed in the feed tank 3, and the raw material is sucked into the feed tank 3 through the feed pipe 20. When a certain amount of raw material is stored in the feed tank 3, the control box 15 issues a command to open the control valve 18. Raw materials fall from the feed tank 3 into the discharge tank 4, and then enter the machine body 7 for subsequent processing through the discharge tank 4. The vacuum feeding method can quickly and efficiently suck the raw materials into the feed tank 3, improving feeding efficiency, reducing manual operation, and reducing labor intensity. At the same time, vacuum feeding can avoid excessive contact between the raw materials and the external environment, reducing the possibility of raw material contamination. The cooperation between the control valve 18 and the control box 15 realizes the automated control of the feeding process, which can accurately control the feeding amount and feeding time, ensuring the continuity and stability of production. By setting the parameters of the control box 15, the feeding speed and feeding amount can be flexibly adjusted according to production needs.

[0025] Working principle: The rotary motor 21 starts, driving the connecting shaft 32 and the rotating shaft 34 to rotate via the coupling 31. This causes the circular plate 30, rotating stirring blade 33, spiral ribbon stirring blade 27, and lifting auger 26, arranged sequentially from top to bottom on the rotating shaft 34, to rotate synchronously. The rotating stirring blade 33, through its unique blade shape and rotational motion, powerfully stirs the raw materials in the insulation tank 8, breaking up agglomerates and stratification, ensuring thorough mixing in the horizontal direction. The spiral ribbon stirring blade 27, with its ribbon-like flexible structure, can more gently and comprehensively agitate the raw materials during rotation, promoting not only vertical flow but also penetrating deeper into the materials to further refine the mixing effect. Both blades work in different ways to stir the raw materials in the insulation tank 8. Stirring is performed, and the auger 26 lifts the raw material from the bottom upwards, promoting the vertical circulation of the raw material. The spray blades 29 on the circular plate 30 spray the raw material in all directions. If the raw material is not sprayed in time, the excess raw material can flow out from the overflow port 28 and then be guided by the spray blades 29 to be sprayed in all directions, thereby reducing the squeezing pressure on the circular plate 30 and preventing jamming. This achieves multi-level and all-round stirring, ensuring that the raw material is fully mixed. The heating medium enters the storage chamber of the annular cylinder 25 through the liquid inlet pipe 13. The annular cylinder 25 plays a crucial role. Internally, its unique design increases the contact area with the raw material during lifting. When the heating medium flows in the storage chamber, it can quickly and evenly transfer heat to the raw material, effectively improving heat transfer efficiency and shortening the preheating time of the raw material. This provides a strong guarantee for subsequent efficient production. Externally, the annular cylinder 25 heats the air inside the tank, creating a warm air environment. When the throwing blades 29 on the circular plate 30 throw the raw material in all directions, the thrown material is fully exposed to the hot air, which dries this part of the raw material, reducing its moisture content and further improving its quality. After the heating medium has transferred heat, it flows out from the liquid outlet pipe 12 for circulation, continuously supporting the heating of the raw material and the warming of the air. The exhaust fan 17 can replace the gas in the heat preservation tank 8 and remove the moisture generated during the preheating of the raw material. The conveying motor 44 starts and drives the conveying auger 40 to rotate in the conveying pipe 43 through the belt pulley pair 41. The raw material enters from the feed hopper 38 and falls through the discharge pipe 39. The material enters the conveying pipe 43 and is propelled forward by the rotation of the conveying auger 40 along the conveying pipe 43 into the machine body 7. The vacuum pump 2 starts, creating negative pressure in the feed tank 3. The raw material is sucked into the feed tank 3 through the feed pipe 20. After a certain amount of raw material is stored, the control box 15 issues a command to open the control valve 18, and the raw material falls from the feed tank 3 into the discharge tank 4, and then into the machine body 7. The horizontal moving component 10 and the vertical moving component 1 cooperate with each other through their respective drive devices to realize the movement of the injection molding machine in the horizontal and vertical directions to adapt to different production scenarios and process requirements. The combination design of multiple stirring components allows the powerful stirring of the rotating stirring blade 33 and the gentle tumbling of the spiral ribbon stirring blade 27 to complement each other, improving the mixing uniformity of the raw material.The lifting auger 26 prevents raw materials from settling at the bottom of the insulation tank 8. The overflow port 28 and the spray blades 29 enhance the flowability of the raw materials, allowing for more thorough mixing and ensuring the stability of the injection molded product quality. The design of the annular cylinder 25 increases the contact area between the heating medium and the raw materials, improving heat transfer efficiency and enabling rapid and uniform heating of the raw materials, shortening preheating time and improving production efficiency. The conveying motor 44 and the conveying auger 40 are connected by a pulley pair 41. This transmission method has a simple structure, smooth transmission, and reliable power transmission. It also has a certain buffering and shock absorption effect, reducing the impact force during motor start-up and operation, protecting the motor and the conveying auger 40, and ensuring the stability and continuity of raw material conveying. The vacuum feeding method can quickly and efficiently suck the raw materials into the feed tank 3, reducing manual operation, reducing labor intensity, and also preventing the raw materials from having too much contact with the outside world, reducing the possibility of contamination. The control valve 18 and control box 15 are also included. To achieve automated control of the feeding process, the feeding quantity and time are precisely controlled, ensuring the continuity and stability of production. The feeding speed and quantity can be flexibly adjusted by setting parameters in the control box 15. The lateral movement component 10 and the longitudinal movement component 1 increase the flexibility and versatility of the injection molding machine, allowing for quick adjustment to the appropriate position in multi-station production, improving production efficiency. The opening and closing door 9 provides convenience for equipment maintenance and operation. When inspecting the internal equipment of the machine body 7, cleaning residual materials, or changing molds, opening the opening and closing door 9 allows for convenient operation, improving the maintainability and efficiency of the equipment. The two base supports 42 ensure the stability of the machine body 7, reasonably distributing weight and reducing vibration during operation, which is beneficial to improving injection molding accuracy and product quality. The fixed round rod 35 is evenly distributed around the circumference, fixing the annular cylinder 25 inside the insulation tank 8, ensuring uniform force distribution, reducing deformation caused by vibration or temperature changes, and extending the service life of the equipment.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. An injection molding machine equipped with a layered stirring raw material preheating mechanism, comprising a machine body (7), wherein a stirring assembly is provided on the side of the machine body (7), characterized in that: The stirring assembly includes a heat preservation tank (8), with several support legs (14) fixed below the heat preservation tank (8). A groove block (36) is fixed at the bottom of the heat preservation tank (8). A conical groove is opened on the groove block (36). A fixing rod (37) is fixed on the groove block (36). The cross section of the fixing rod (37) is triangular. A rotating shaft (34) is rotatably arranged above the fixing rod (37). A cover plate (23) is fixed above the heat preservation tank (8). A connecting shaft (32) is rotatably arranged below the cover plate (23). The connecting shaft (32) and the rotating shaft (34) are fixedly connected. A vertical plate (19) is fixed above the cover plate (23). A connecting plate (24) is fixed above the vertical plate (19). A rotary motor (21) is fixed above the connecting plate (24). A coupling (31) is fixed between the output shaft of the rotary motor (21) and the connecting shaft (32). A connecting pipe (22) is connected to the bottom of the heat preservation tank (8). A heating component is installed inside the heat preservation tank (8). A feeding component is installed above the machine body (7).

2. The injection molding machine equipped with a layered stirring raw material preheating mechanism according to claim 1, characterized in that: The machine body (7) is fixed with a partition (5) inside. The partition (5) divides the inside of the machine body (7) into an installation chamber (11) and an equipment chamber. The installation chamber (11) is fixed with a conveying motor (44). The equipment chamber is fixed with a feeding hopper (38). The feeding hopper (38) is fixed with a discharge pipe (39) below it. The discharge pipe (39) is connected with a conveying pipe (43) below it. The conveying pipe (43) is rotatably equipped with a conveying auger (40). A pulley pair (41) is provided between the end of the conveying auger (40) and the output shaft of the conveying motor (44).

3. The injection molding machine equipped with a layered stirring raw material preheating mechanism according to claim 1, characterized in that: A horizontal moving component (10) is provided on the top of the body (7), and a vertical moving component (1) is provided on the horizontal moving component (10). An opening and closing door (9) is provided on the side of the body (7), and two base legs (42) are fixed on the bottom of the body (7).

4. An injection molding machine equipped with a layered stirring type raw material preheating mechanism according to claim 1, characterized in that: The rotating shaft (34) is provided with a circular plate (30), a rotating stirring blade (33), a spiral ribbon stirring blade (27) and a lifting auger (26) arranged from top to bottom. Several overflow ports (28) are provided above the circular plate (30). Several circumferentially distributed spraying blades (29) are fixed above the circular plate (30). An opening and closing cover (16) is hinged on the cover plate (23). An exhaust fan (17) is fixed on the cover plate (23).

5. An injection molding machine equipped with a layered stirring type raw material preheating mechanism according to claim 1, characterized in that: The heating assembly includes an annular cylinder (25), which has a liquid storage chamber inside. Several circumferentially distributed fixed round rods (35) are fixed on the annular cylinder (25). The fixed round rods (35) are all fixed inside the heat preservation tank (8). An outlet pipe (12) and an inlet pipe (13) are fixed on the annular cylinder (25). The outlet pipe (12) and the inlet pipe (13) are both connected to the liquid storage chamber. The outlet pipe (12) and the inlet pipe (13) both extend through the heat preservation tank (8).

6. An injection molding machine equipped with a layered stirring raw material preheating mechanism according to claim 1, characterized in that: The feeding assembly includes a fixed plate (6), which is fixed above the machine body (7). A control box (15) is fixed above the fixed plate (6). A discharge tank (4) is fixed above the fixed plate (6). A feed tank (3) is fixed above the discharge tank (4). A control valve (18) is provided between the feed tank (3) and the discharge tank (4). A vacuum pump (2) is provided above the feed tank (3). A feed pipe (20) is connected to the side of the feed tank (3). The feed pipe (20) is connected to the connecting pipe (22).

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