A drying device for an injection molding machine hopper

Abstract

The utility model relates to cosmetic raw material processing technical field, concretely discloses a drying device of injection molding machine feed hopper, including feed hopper main part, the bottom end intercommunication of feed hopper main part is provided with the blanking tube, the inside fixed mounting of feed hopper main part has the blanking frame, the inside of blanking frame is provided with the stirring frame, its through drive assembly vertical reciprocating sliding is arranged in the blanking frame, the inside rotation of stirring frame is provided with the stirring vane, a plurality of heating fins are fixedly installed on the stirring vane. This utility model through utilize drive assembly, played can to the stirring frame of setting in the blanking frame inside vibration, avoided the effect that the cosmetic raw material accumulated in the stirring frame, thereby avoided as far as possible the cosmetic raw material accumulated in the stirring frame, and then the drying efficiency of cosmetic raw material in the stirring frame was influenced to happen the situation, improved the drying efficiency of whole device to cosmetic raw material.

Description

Technical Field

[0001] This utility model relates to the field of cosmetic raw material processing technology, specifically a drying device for the feed hopper of an injection molding machine. Background Technology

[0002] Long-lasting antibacterial makeup pens are makeup tools that combine long-lasting makeup technology with antibacterial ingredients. Their core feature lies in achieving long-lasting makeup effects through a special formula while inhibiting microbial growth, ensuring safety during use. Cosmetic raw materials are the basic substances that make up cosmetics, directly affecting the product's efficacy, safety, stability, and user experience. They are scientifically formulated and processed to create various types of cosmetics.

[0003] When using existing drying equipment to dry cosmetic raw materials in the injection molding machine feed hopper, the accumulation of cosmetic raw materials in the feed hopper makes it difficult for the drying equipment to fully contact the accumulated cosmetic raw materials. As a result, it takes a lot of time to dry the cosmetic raw materials, which reduces the drying efficiency of the cosmetic raw materials in the injection molding machine feed hopper and reduces the practicality of the entire drying equipment. Utility Model Content

[0004] The purpose of this invention is to provide a drying device for the feed hopper of an injection molding machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drying device for the feed hopper of an injection molding machine, comprising a feed hopper body, a discharge pipe connected to the bottom end of the feed hopper body, a discharge frame fixedly installed inside the feed hopper body, a stirring frame disposed inside the discharge frame, which is vertically reciprocatingly slidably disposed within the discharge frame by a drive component, a stirring blade rotatably disposed inside the stirring frame, and multiple heating elements fixedly installed on the stirring blade.

[0006] The aforementioned components achieve the following effect: by utilizing the drive assembly, the stirring frame located inside the feeding frame is vibrated, preventing cosmetic raw materials from accumulating in the stirring frame. This minimizes the impact on the drying efficiency of the cosmetic raw materials in the stirring frame due to accumulation, thereby improving the overall drying efficiency of the device for cosmetic raw materials.

[0007] By utilizing the stirring blades installed in the stirring frame, the stirring frame is vibrated, which in turn stirs the cosmetic raw materials in the stirring frame. This allows the heating plates on the stirring blades to fully contact the cosmetic raw materials in the stirring frame, thereby further improving the drying efficiency of the entire device for cosmetic raw materials and enhancing the practicality of the entire device.

[0008] Preferably, a plurality of third springs are provided between the feeding frame and the stirring frame, with one end of the third spring fixedly connected to the feeding frame and the other end fixedly connected to the bottom surface of the stirring frame.

[0009] The effect achieved by the above-mentioned components is that, with the help of the third spring, the stirring frame set in the feeding frame can be quickly reset under the action of the spring force of the third spring.

[0010] Preferably, a guide seat is fixedly installed inside the feeding frame, and multiple feeding holes are opened on the bottom surface of the feeding frame.

[0011] The aforementioned components achieve the following effects: by utilizing the guide seat, the dried cosmetic raw materials falling from the mixing frame are guided into the cavity formed by the feeding frame and the guide seat. Then, through the feeding hole, the dried cosmetic raw materials fall from the feeding frame and flow into the injection molding machine via the feeding pipe located at the bottom of the feeding hopper, thus completing the subsequent processing of the cosmetic raw materials.

[0012] Preferably, the drive assembly has a first rotating rod and a second rotating rod rotatably mounted on the main body of the feed hopper. An eccentric wheel is fixedly mounted at one end of the first rotating rod and the second rotating rod that are close to each other. A crank is rotatably connected between the two eccentric wheels. A movable rod is rotatably connected to the other end of the crank. The top end of the movable rod is connected to the bottom surface of the stirring frame.

[0013] Furthermore, a motor is fixedly installed on the side wall of the main body of the feed hopper, and the output end of the motor is fixedly connected to the other end of the first rotating rod.

[0014] The aforementioned components achieve the following effect: by utilizing the motor on the main body of the feeding hopper, the first rotating rod can rotate under the action of the motor, thereby causing the eccentric wheel located between the first and second rotating rods to rotate. This, in turn, allows the movable rod to move up and down under the drive of the crank. During the upward movement of the movable rod, the stirring frame can be lifted up against the force of the third spring. As the eccentric wheel and crank continue to operate, when the stirring frame is lifted to a high position, it can be reset under the force of the third spring. Therefore, through the cooperation between the crank on the eccentric wheel and the third spring, the stirring frame in the feeding frame can be driven to slide vertically back and forth, thereby vibrating the stirring frame in the feeding frame and effectively preventing the accumulation of cosmetic raw materials in the stirring frame.

[0015] Preferably, an adjusting cylinder is fixedly installed on the bottom surface of the stirring frame, the movable rod is slidably disposed inside the adjusting cylinder, and a second spring is provided inside the adjusting cylinder. One end of the second spring is fixedly connected to the inner wall of the adjusting cylinder, and the other end is fixedly connected to the top of the movable rod.

[0016] The effect achieved by the above-mentioned components is that, by utilizing the second spring installed in the adjusting cylinder, the vertical sliding of the movable rod is buffered.

[0017] Preferably, a mounting frame is fixedly installed at the top of the main body of the feed hopper, and a rotating drum is provided on the mounting frame. The rotating drum is rotatably mounted on the mounting frame through a transmission assembly, and the stirring blade is connected to the bottom end of the rotating drum.

[0018] Furthermore, the transmission assembly includes a first bevel gear fixedly mounted on the other end of the second rotating rod, and a mounting base is fixedly mounted on the side wall of the feed hopper body. A rotating shaft is rotatably mounted on the mounting base, and a second bevel gear meshing with the first bevel gear is fixedly mounted at the bottom end of the rotating shaft. A first transmission wheel is fixedly mounted at the top end of the rotating shaft, and a second transmission wheel is fixedly mounted at the top end of the rotating drum. The first transmission wheel and the second transmission wheel are connected by a belt drive.

[0019] The aforementioned components achieve the following effect: by utilizing the transmission assembly, the first rotating rod rotates while simultaneously driving the second rotating rod to rotate via the eccentric wheel. This causes the first bevel gear on the second rotating rod to rotate under the drive of the second rotating rod. Through the meshing between the first and second bevel gears, the shaft on the mounting base rotates. Then, through the mutual transmission between the first and second transmission wheels and the belt, the rotating part of the mounting frame rotates, thereby driving the stirring blades in the stirring frame to rotate. This ensures that the stirring blades can fully contact the cosmetic raw materials in the stirring frame during rotation, thus improving the drying effect of the entire device on the cosmetic raw materials.

[0020] Preferably, a telescopic rod is slidably arranged inside the rotating drum, the stirring blade is fixedly installed on the bottom end of the telescopic rod, and a first spring is arranged inside the rotating drum, one end of the first spring is fixedly connected to the inner wall of the rotating drum, and the other end is fixedly connected to the top end of the telescopic rod.

[0021] The aforementioned components achieve the following effect: by utilizing the telescopic rod installed in the rotating drum, the stirring frame, under the action of the crank on the eccentric wheel, is lifted upwards, allowing the stirring blades to compress the first spring inside the rotating drum. Furthermore, during the resetting process of the stirring frame, the stirring blades are quickly reset under the elastic force of the first spring. Therefore, the stirring blades are kept in contact with the bottom of the stirring frame throughout the entire vertical sliding process, thereby improving the adaptability of the stirring blades to the vertical sliding process of the stirring frame.

[0022] Preferably, a temperature sensor is fixedly installed on the circumference of the rotating drum.

[0023] The aforementioned components achieve the following effect: by utilizing a temperature sensor, the temperature in the mixing drum can be monitored, thereby allowing the temperature in the mixing drum to be adjusted by regulating the temperature of the heating element.

[0024] Compared with the prior art, the beneficial effects of this utility model are: 1. By utilizing the drive component, the mixing frame inside the feeding frame is vibrated, which prevents cosmetic raw materials from accumulating in the mixing frame. This minimizes the impact of cosmetic raw material accumulation on the drying efficiency of the mixing frame, thereby improving the overall drying efficiency of the device for cosmetic raw materials.

[0025] 2. By utilizing the stirring blades installed in the stirring frame, the stirring blades can stir the cosmetic raw materials in the stirring frame while the frame is vibrating. This allows the heating plates on the stirring blades to fully contact the cosmetic raw materials in the stirring frame, thereby further improving the drying efficiency of the entire device and enhancing its practicality. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0027] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model; Figure 2 Provided for the embodiments of this utility model Figure 1 A schematic diagram of the front section structure; Figure 3 Provided for the embodiments of this utility model Figure 2A partial structural diagram; Figure 4 Provided for the embodiments of this utility model Figure 3 Schematic diagram of the structure at point A; Figure 5 Provided for the embodiments of this utility model Figure 1 Partial disassembly diagram; Figure 6 Provided for the embodiments of this utility model Figure 5 A schematic diagram of the structure at point B.

[0028] Explanation of reference numerals in the attached drawings: 1. Feed hopper body; 2. Discharge pipe; 3. Motor; 4. First rotating rod; 5. Second rotating rod; 6. First bevel gear; 7. Mounting base; 8. Rotating shaft; 9. Second bevel gear; 10. First transmission wheel; 11. Mounting frame; 12. Rotary drum; 13. Second transmission wheel; 14. Belt; 15. Telescopic rod; 16. First spring; 17. Stirring blade; 18. Heating element; 19. Temperature sensor; 20. Eccentric wheel; 21. Crank; 22. Movable rod; 23. Adjusting cylinder; 24. Second spring; 25. Discharge frame; 26. Stirring frame; 27. Third spring; 28. Guide seat; 29. ​​Discharge hole. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-6This utility model provides a technical solution: a drying device for the feed hopper of an injection molding machine, including a feed hopper body 1, a discharge pipe 2 connected to the bottom end of the feed hopper body 1, a discharge frame 25 fixedly installed inside the feed hopper body 1, a stirring frame 26 disposed inside the discharge frame 25, which is vertically reciprocatingly slidably disposed within the discharge frame 25 by a drive assembly, a stirring blade 17 rotatably disposed inside the stirring frame 26, and multiple heating plates 18 fixedly mounted on the stirring blade 17. By utilizing the drive assembly, the stirring frame 26 disposed inside the discharge frame 25 is vibrated, avoiding the accumulation of cosmetic raw materials in the stirring frame 26, thereby minimizing the impact on the drying efficiency of the cosmetic raw materials in the stirring frame 26 due to the accumulation of cosmetic raw materials, and improving the overall drying efficiency of the device for cosmetic raw materials. Furthermore, by utilizing the stirring blades 17 installed in the stirring frame 26, the stirring blades 17 can stir the cosmetic raw materials in the stirring frame 26 while the stirring frame 26 is vibrating. This allows the heating plate 18 installed on the stirring blades 17 to fully contact the cosmetic raw materials in the stirring frame 26, thereby further improving the drying efficiency of the entire device for cosmetic raw materials and enhancing the practicality of the entire device.

[0031] In another embodiment provided by this utility model, a plurality of third springs 27 are provided between the feeding frame 25 and the stirring frame 26. One end of the third spring 27 is fixedly connected to the feeding frame 25, and the other end is fixedly connected to the bottom surface of the stirring frame 26. By means of the third spring 27, the stirring frame 26 disposed in the feeding frame 25 can be quickly reset under the elastic force of the third spring 27.

[0032] A guide seat 28 is fixedly installed inside the feeding frame 25, and multiple feeding holes 29 are opened on the bottom surface of the feeding frame 25. By using the guide seat 28, the dried cosmetic raw material falling from the mixing frame 26 can be guided, so that the dried cosmetic raw material can fall into the cavity formed by the feeding frame 25 and the guide seat 28. Then, through the feeding holes 29, the dried cosmetic raw material can fall from the feeding frame 25, and through the feeding pipe 2 set at the bottom of the feeding hopper body 1, the dried cosmetic raw material can flow into the injection molding machine to complete the subsequent processing of the cosmetic raw material.

[0033] The drive assembly consists of a first rotating rod 4 and a second rotating rod 5 mounted on the main body 1 of the feed hopper. Eccentric wheels 20 are fixedly mounted on the ends of the first rotating rod 4 and the second rotating rod 5 that are close to each other. A crank 21 is rotatably connected between the two eccentric wheels 20. A movable rod 22 is rotatably connected to the other end of the crank 21. The top end of the movable rod 22 is connected to the bottom surface of the stirring frame 26. A motor 3 is fixedly mounted on the side wall of the main body 1 of the feed hopper, and the output end of the motor 3 is fixedly connected to the other end of the first rotating rod 4. By utilizing the motor 3 on the main body 1 of the feeding hopper, the first rotating rod 4 can rotate under the action of the motor 3, thereby causing the eccentric wheel 20 located between the first rotating rod 4 and the second rotating rod 5 to rotate. This allows the movable rod 22 to move up and down under the drive of the crank 21. As the movable rod 22 moves upward, it can lift the stirring frame 26 against the elastic force of the third spring 27. With the continuous operation of the eccentric wheel 20 and the crank 21, when the stirring frame 26 is lifted to a high position, it can return to its original position under the elastic force of the third spring 27. Therefore, through the cooperation between the crank 21 on the eccentric wheel 20 and the third spring 27, the stirring frame 26 in the feeding frame 25 can be driven to slide vertically back and forth, thereby vibrating the stirring frame 26 in the feeding frame 25 and effectively preventing the accumulation of cosmetic raw materials in the stirring frame 26.

[0034] An adjusting cylinder 23 is fixedly installed on the bottom surface of the stirring frame 26. The movable rod 22 is slidably disposed inside the adjusting cylinder 23, and a second spring 24 is disposed inside the adjusting cylinder 23. One end of the second spring 24 is fixedly connected to the inner wall of the adjusting cylinder 23, and the other end is fixedly connected to the top of the movable rod 22. By utilizing the second spring 24 disposed in the adjusting cylinder 23, the vertical sliding of the movable rod 22 is buffered.

[0035] A mounting frame 11 is fixedly installed at the top of the feed hopper body 1. A rotating drum 12 is mounted on the mounting frame 11 and is rotatably mounted on the mounting frame 11 via a transmission assembly. A stirring blade 17 is connected to the bottom end of the rotating drum 12. The transmission assembly includes a first bevel gear 6 fixedly mounted on the other end of the second rotating rod 5. A mounting base 7 is also fixedly mounted on the side wall of the feed hopper body 1. A rotating shaft 8 is rotatably mounted on the mounting base 7. A second bevel gear 9 that meshes with the first bevel gear 6 is fixedly mounted at the bottom end of the rotating shaft 8. A first transmission wheel 10 is fixedly mounted at the top end of the rotating shaft 8, and a second transmission wheel 13 is fixedly mounted at the top end of the rotating drum 12. The first transmission wheel 10 and the second transmission wheel 13 are connected by a belt 14. By utilizing a transmission assembly, the first rotating rod 4 rotates while simultaneously driving the second rotating rod 5 to rotate via the eccentric wheel 20. This causes the first bevel gear 6 on the second rotating rod 5 to rotate under the drive of the second rotating rod 5. Through the meshing between the first bevel gear 6 and the second bevel gear 9, the rotating shaft 8 on the mounting base 7 rotates. Then, through the mutual transmission between the first transmission wheel 10, the second transmission wheel 13, and the belt 14, the rotating part on the mounting frame 11 rotates, thereby driving the stirring blade 17 in the stirring frame 26 to rotate. This ensures that the stirring blade 17 can fully contact the cosmetic raw materials in the stirring frame 26 during rotation, thus improving the drying effect of the entire device on the cosmetic raw materials.

[0036] A telescopic rod 15 is slidably installed inside the rotating drum 12. A stirring blade 17 is fixedly mounted on the bottom end of the telescopic rod 15. A first spring 16 is installed inside the rotating drum 12, with one end fixedly connected to the inner wall of the rotating drum 12 and the other end fixedly connected to the top end of the telescopic rod 15. By utilizing the telescopic rod 15 inside the rotating drum 12, the stirring frame 26, under the action of the crank 21 on the eccentric wheel 20, is lifted upwards. During this process, the stirring blade 17 compresses the first spring 16 inside the rotating drum 12. Furthermore, during the resetting process of the stirring frame 26, the stirring blade 17 quickly resets under the elastic force of the first spring 16. Therefore, throughout the entire vertical sliding process of the stirring frame 26, the stirring blade 17 remains in contact with the bottom of the stirring frame 26, thereby improving the adaptability of the stirring blade 17 to the vertical sliding process of the stirring frame 26.

[0037] A temperature sensor 19 is fixedly installed on the circumference of the rotating drum 12. By using the temperature sensor 19, the temperature in the mixing drum can be monitored, and thus the temperature in the mixing drum can be adjusted by adjusting the temperature of the heating element 18.

[0038] Working principle: When the cosmetic raw materials in the feed hopper body 1 need to be dried, the motor 3 on the feed hopper body 1 is used to make the first rotating rod 4 rotate under the action of the motor 3, so that the eccentric wheel 20 set between the first rotating rod 4 and the second rotating rod 5 can rotate, and then the movable rod 22 can move up and down under the drive of the crank 21. When the movable rod 22 moves upward, it can make the stirring frame 26 overcome the elastic force of the third spring 27 and lift it up. As the eccentric wheel 20 and the crank 21 continue to operate, when the stirring frame 26 is lifted to a high position, it can be reset under the elastic force of the third spring 27. Therefore, through the cooperation between the crank 21 on the eccentric wheel 20 and the third spring 27, the stirring frame 26 in the feed frame 25 can be driven to slide vertically back and forth.

[0039] When the driving assembly is used to vertically reciprocate the stirring frame 26 in the feeding frame 25, the transmission assembly enables the first rotating rod 4 to rotate while the second rotating rod 5 rotates via the eccentric wheel 20. This causes the first bevel gear 6 on the second rotating rod 5 to rotate under the drive of the second rotating rod 5. Through the meshing between the first bevel gear 6 and the second bevel gear 9, the rotating shaft 8 on the mounting base 7 rotates. Then, through the mutual transmission between the first transmission wheel 10, the second transmission wheel 13, and the belt 14, the rotating frame 11 rotates, thereby driving the stirring blade 17 in the stirring frame 26 to rotate. This allows the stirring blade 17 to fully contact the cosmetic raw materials in the stirring frame 26 during rotation, thereby improving the drying effect of the entire device on the cosmetic raw materials.

[0040] Furthermore, by utilizing the telescopic rod 15 installed in the rotating drum 12, the stirring frame 26, under the action of the crank 21 on the eccentric wheel 20, can be lifted upwards, allowing the stirring blade 17 to compress the first spring 16 inside the rotating drum 12. During the resetting process of the stirring frame 26, the stirring blade 17 can be quickly reset under the elastic force of the first spring 16. Therefore, the stirring blade 17 can contact the bottom of the stirring frame 26 throughout the entire vertical sliding process, thereby improving the adaptability of the stirring blade 17 to the vertical sliding process of the stirring frame 26.

[0041] Finally, by using the guide seat 28, the dried cosmetic raw material falling from the mixing frame 26 is guided into the cavity formed by the feeding frame 25 and the guide seat 28. Then, by using the feeding hole 29, the dried cosmetic raw material falls from the feeding frame 25 and flows into the injection molding machine through the feeding pipe 2 at the bottom of the feeding hopper body 1, thus completing the subsequent processing of the cosmetic raw material.

[0042] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0043] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drying device for the feed hopper of an injection molding machine, comprising a feed hopper body (1), characterized in that: The bottom end of the feeding hopper body (1) is connected to a feeding pipe (2). A feeding frame (25) is fixedly installed inside the feeding hopper body (1). A stirring frame (26) is installed inside the feeding frame (25). It is vertically and reciprocally slidably installed inside the feeding frame (25) by a drive component. A stirring blade (17) is rotatably installed inside the stirring frame (26). Multiple heating elements (18) are fixedly installed on the stirring blade (17).

2. The drying device for the feed hopper of an injection molding machine according to claim 1, characterized in that: Multiple third springs (27) are provided between the feeding frame (25) and the stirring frame (26). One end of the third spring (27) is fixedly connected to the feeding frame (25), and the other end is fixedly connected to the bottom surface of the stirring frame (26).

3. The drying device for the feed hopper of an injection molding machine according to claim 2, characterized in that: The material feeding frame (25) is fixedly installed with a material guide seat (28), and the bottom surface of the material feeding frame (25) is provided with multiple material feeding holes (29).

4. The drying device for the feed hopper of an injection molding machine according to claim 1, characterized in that: The drive assembly is rotatably mounted on the first rotating rod (4) and the second rotating rod (5) on the main body of the feed hopper (1). The first rotating rod (4) and the second rotating rod (5) are both fixedly mounted with eccentric wheels (20) at their close ends. A crank (21) is rotatably connected between the two eccentric wheels (20). A movable rod (22) is rotatably connected to the other end of the crank (21). The top end of the movable rod (22) is connected to the bottom surface of the stirring frame (26).

5. A drying device for the feed hopper of an injection molding machine according to claim 4, characterized in that: An adjusting cylinder (23) is fixedly installed on the bottom surface of the stirring frame (26). The movable rod (22) is slidably disposed inside the adjusting cylinder (23). A second spring (24) is provided inside the adjusting cylinder (23). One end of the second spring (24) is fixedly connected to the inner wall of the adjusting cylinder (23), and the other end is fixedly connected to the top of the movable rod (22).

6. The drying device for the feed hopper of an injection molding machine according to claim 4, characterized in that: A motor (3) is fixedly installed on the side wall of the main body (1) of the feed hopper, and the output end of the motor (3) is fixedly connected to the other end of the first rotating rod (4).

7. A drying device for the feed hopper of an injection molding machine according to claim 6, characterized in that: The top of the feed hopper body (1) is fixedly installed with a mounting frame (11), and a rotating drum (12) is provided on the mounting frame (11). The rotating drum (12) is rotatably mounted on the mounting frame (11) through a transmission assembly, and the stirring blade (17) is connected to the bottom end of the rotating drum (12).

8. A drying device for the feed hopper of an injection molding machine according to claim 7, characterized in that: The transmission assembly includes a first bevel gear (6) fixedly installed on the other end of the second rotating rod (5), and a mounting base (7) is also fixedly installed on the side wall of the feed hopper body (1). A rotating shaft (8) is rotatably installed on the mounting base (7), and a second bevel gear (9) meshing with the first bevel gear (6) is fixedly installed at the bottom end of the rotating shaft (8). The top end of the rotating shaft (8) is fixedly mounted with a first transmission wheel (10), and the top end of the rotating drum (12) is fixedly mounted with a second transmission wheel (13). The first transmission wheel (10) and the second transmission wheel (13) are connected by a belt (14).

9. A drying device for the feed hopper of an injection molding machine according to claim 7, characterized in that: The rotating drum (12) is slidably provided with a telescopic rod (15), and the stirring blade (17) is fixedly installed on the bottom end of the telescopic rod (15). The rotating drum (12) is provided with a first spring (16), one end of which is fixedly connected to the inner wall of the rotating drum (12), and the other end is fixedly connected to the top end of the telescopic rod (15).

10. A drying device for the feed hopper of an injection molding machine according to claim 7, characterized in that: A temperature sensor (19) is fixedly installed on the circumference of the rotating drum (12).

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