Automatic feed device for metal shredder

Abstract

This utility model discloses an automatic feeding device for a metal shredder, belonging to the field of shredder feeding technology. It includes a fixed frame with two screws rotatably connected internally, and a movable frame slidably connected internally. The outer surfaces of the two screws are threadedly connected to the inner wall of the movable frame. A discharge rack is fixedly connected to the upper surface of the movable frame, with its right side contacting the left side of the fixed frame. Two guide rails are fixedly connected to the left side of the fixed frame, with their adjacent sides contacting the front and back of the discharge rack, respectively. This automatic feeding device for a metal shredder allows metal scrap to automatically fall into the shredder through the discharge port for shredding. This makes it safer and more convenient to feed metal scrap into the shredder during use, eliminating the need for a forklift to lift the scrap and improving the safety and convenience of feeding the metal shredder.

Description

Technical Field

[0001] This utility model belongs to the field of shredder feeding technology, and particularly relates to an automatic feeding device for metal shredders. Background Technology

[0002] Metal shredders are mainly composed of shredding blades, a bearing housing, a housing support, a feeding system, a power system, and an electrical control system. They are primarily used to shred thin, light metals with a certain strength to increase their bulk density for easier transportation and recycling. Shredding objects include metal drums, refrigerators, automobiles, scrap steel, and steel furniture.

[0003] The existing utility model with authorization announcement number CN214131979U discloses a waste metal shredder, including a feed pipe and a shredding box. The top of the shredding box is provided with a feed pipe, and a rotating shaft is movably provided inside the feed pipe. Two sets of tilting plates are provided on the rotating shaft. The shredding box is provided with a conveying pipe, the top of the conveying pipe is connected to the feed pipe, and the bottom of the conveying pipe is connected to the crushing box. The inner wall of the conveying pipe is provided with a clamping plate, and multiple sets of spikes are evenly provided on the clamping plate.

[0004] The above technical solution avoids the flying of fine shavings from shredding scrap metal, which could affect workers' eyes and other health, ensuring a safe working environment and improving work efficiency. It also facilitates the removal of water from scrap metal and is easy to use. However, the above technical solution makes it difficult for workers to safely and conveniently feed the scrap metal into the shredder. A special forklift is needed to lift the scrap metal to a certain height to complete the feeding process, which greatly affects the safety and convenience of feeding the scrap metal.

[0005] Therefore, we propose using an automatic feeding device for metal shredders to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to solve the problem in the prior art that a special forklift is needed to lift the metal scrap to a certain height in order to successfully complete the feeding of the metal shredder, which affects the safety and convenience of the metal shredder feeding process. The invention proposes an automatic feeding device for metal shredders.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An automatic feeding device for a metal shredder includes a fixed frame. Two screws are rotatably connected inside the fixed frame. A movable frame is slidably connected inside the fixed frame. The outer surfaces of the two screws are threadedly connected to the inner wall of the movable frame. A feeding frame is fixedly connected to the upper surface of the movable frame. The right side of the feeding frame contacts the left side of the fixed frame. Two guide rails are fixedly connected to the left side of the fixed frame. The sides of the two guide rails that are close to each other contact the front and back of the feeding frame, respectively. Roller frames are fixedly connected to the front and back of the feeding frame and the front and back of the movable frame, respectively. Each roller frame is slidably connected inside the guide rail. A dual-axis motor is fixedly connected to the bottom surface of the fixed frame. Connecting rods are fixedly connected to the two output ends of the dual-axis motor. A first bevel gear is fixedly connected to one end of each connecting rod. A second bevel gear is fixedly connected to the bottom end of each of the two screws. The two second bevel gears mesh with the two first bevel gears, respectively. A discharge port is provided on the upper surface of the fixed frame.

[0009] Preferably, a shredding box is provided on the right side of the fixed frame, and two shredding shafts are rotatably connected inside the shredding box. Servo motors are provided on both the front and back of the shredding box, and reducers are fixedly connected to both the front and back of the shredding box. The output ends of the two reducers are respectively fixedly connected to one end of the two shredding shafts, and the output ends of the two servo motors are respectively fixedly connected to the input ends of the two reducers.

[0010] Preferably, two positioning frames are fixedly connected to the left side of the shredder, and the left side of each positioning frame is fixedly connected to the right side of the fixing frame.

[0011] Preferably, a feeding hood is fixedly connected to one side of both positioning frames, the bottom surface of the feeding hood is fixedly connected to the upper surface of the shredding box, and the left side of the feeding hood is fixedly connected to the right side of the fixing frame.

[0012] Preferably, the inner wall of the shredding box is fixedly connected to two guide plates, the upper surfaces of the two guide plates are inclined surfaces with a certain angle, and the two guide plates are respectively disposed on the two shredding shafts.

[0013] Preferably, a support frame is fixedly connected to the bottom surface of the shredder, and four mounting plates are fixedly connected to the bottom surface of the support frame.

[0014] Preferably, the bottom surfaces of both servo motors are fixedly connected to a stabilizing base, and the opposite sides of the two stabilizing bases are fixedly connected to the front and back of the shredder, respectively.

[0015] Preferably, the outer surfaces of the two connecting rods are rotatably connected to two limiting frames, and the upper surface of each limiting frame is fixedly connected to the bottom surface of the fixing frame.

[0016] In summary, the technical effects and advantages of this utility model are as follows:

[0017] 1. By setting up a power-assisted fixed frame provided by a dual-shaft motor, the first bevel gear can be driven to rotate via the connecting rod. The rotation of the first bevel gear, in conjunction with the second bevel gear, can drive the screw to rotate. In turn, the screw can drive the moving frame and the feeding frame to move upward until the feeding frame moves to a position parallel to the discharge port. Utilizing the inclined surface inside the feeding frame, the metal scrap can automatically fall into the shredder through the discharge port for shredding. This makes it safer and more convenient to feed the metal scrap into the shredder for crushing during use, eliminating the need for an additional forklift to lift the metal scrap and improving the safety and convenience of feeding the metal shredder.

[0018] 2. By setting the roller frame to slide up and down inside the guide rail, the load-bearing capacity of the feeding frame and the moving frame can be improved, and the excessive force between the moving frame and the screw can be prevented from causing the screw to bend and deform. This makes the feeding frame more stable and reliable when feeding metal scrap, thereby further improving the smoothness and safety of the automatic feeding of the metal shredder. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the fixing frame of this utility model;

[0020] Figure 2 This is a three-dimensional cross-sectional structural diagram of the material feeding rack of this utility model;

[0021] Figure 3 This is a three-dimensional cross-sectional structural diagram of the fixing frame of this utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the connecting rod and the first bevel gear of this utility model;

[0023] Figure 5 This is a three-dimensional structural diagram of the shredding box, feed hood, and shredding shaft of this utility model after they have been unfolded.

[0024] In the diagram: 1. Fixed frame; 2. Screw; 3. Moving frame; 4. Feeding frame; 5. Guide rail; 6. Roller frame; 7. Dual-axis motor; 8. Connecting rod; 9. First bevel gear; 10. Second bevel gear; 11. Discharge port; 12. Shredder box; 13. Shredder shaft; 14. Servo motor; 15. Reducer; 16. Positioning frame; 17. Feed hood; 18. Guide plate; 19. Support frame; 20. Mounting plate; 21. Stabilizing seat; 22. Limiting frame. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Reference Figure 1-5 An automatic feeding device for a metal shredder includes a fixed frame 1. Two screws 2 are rotatably connected inside the fixed frame 1. A shredding box 12 is located on the right side of the fixed frame 1. Two shredding shafts 13 are rotatably connected inside the shredding box 12. Servo motors 14 are installed on both the front and back of the shredding box 12. Reducers 15 are fixedly connected to both the front and back of the shredding box 12. The output ends of the two reducers 15 are fixedly connected to one end of each of the two shredding shafts 13. The output ends of the two servo motors 14 are fixedly connected to the input ends of the two reducers 15. Through the power provided by the two servo motors 14 in conjunction with the shredding box 12, and the reduction in speed and increase in torque of the reducers 15, the two shredding shafts 13 can be driven to rotate simultaneously towards the center position, ensuring the smooth operation of the metal shredding process.

[0027] The fixed frame 1 has a sliding connection to the movable frame 3 inside. The outer surfaces of the two screws 2 are threaded to the inner wall of the movable frame 3. The left side of the shredding box 12 is fixedly connected to two positioning frames 16. The left side of the two positioning frames 16 is fixedly connected to the right side of the fixed frame 1. The positioning frames 16 can fix the position of the fixed frame 1, so that the fixed frame 1 and the shredding box 12 are firmly connected, ensuring the stability of the fixed frame 1 in use.

[0028] The upper surface of the movable frame 3 is fixedly connected to the feeding frame 4. The inner bottom wall of the feeding frame 4 is an inclined surface with a certain angle. The right side of the feeding frame 4 is in contact with the left side of the fixed frame 1. One side of the two positioning frames 16 is fixedly connected to the feeding hood 17. The bottom surface of the feeding hood 17 is fixedly connected to the upper surface of the shredding box 12. The left side of the feeding hood 17 is fixedly connected to the right side of the fixed frame 1. The feeding hood 17 can better receive metal waste, making it smoother when the metal waste enters the shredding box 12 for shredding.

[0029] Two guide rails 5 are fixedly connected to the left side of the fixed frame 1. The sides of the two guide rails 5 that are close to each other are in contact with the front and back of the feeding frame 4, respectively. Roller frames 6 are fixedly connected to the front and back of the feeding frame 4 and the front and back of the moving frame 3, respectively. Each roller frame 6 is slidably connected inside the guide rail 5. Two guide plates 18 are fixedly connected to the inner wall of the shredding box 12. The upper surfaces of the two guide plates 18 are inclined surfaces with a certain angle. The two guide plates 18 are respectively set above the two shredding shafts 13. The guide plates 18 can guide the metal waste into the shredding box 12, so that the metal waste can smoothly enter between the two shredding shafts 13 and be shredded smoothly.

[0030] A dual-axis motor 7 is fixedly connected to the bottom surface of the fixed frame 1. Connecting rods 8 are fixedly connected to both output ends of the dual-axis motor 7. A support frame 19 is fixedly connected to the bottom surface of the shredding box 12. Four mounting plates 20 are fixedly connected to the bottom surface of the support frame 19. The support frame 19 can support the position of the device. The mounting plates 20, together with bolts and other fasteners, can fix the position of the device and increase the installation firmness of the device.

[0031] One end of each of the two connecting rods 8 is fixedly connected to a first bevel gear 9, and the bottom end of each of the two screws 2 is fixedly connected to a second bevel gear 10. The two second bevel gears 10 are respectively meshed with the two first bevel gears 9. The bottom surfaces of each of the two servo motors 14 are fixedly connected to a stabilizing seat 21. The opposite sides of the two stabilizing seats 21 are respectively fixedly connected to the front and back of the shredding box 12. The stabilizing seat 21 can increase the stability of the servo motor 14, making the servo motor 14 run more stably and reliably, and ensuring that the servo motor 14 can smoothly drive the shredding shaft 13 to rotate.

[0032] The upper surface of the fixed frame 1 is provided with a feeding port 11. The outer surfaces of the two connecting rods 8 are rotatably connected to two limiting frames 22. The upper surface of each limiting frame 22 is fixedly connected to the bottom surface of the fixed frame 1. The limiting frame 22 can increase the rotational stability of the connecting rods 8 without affecting the rotation of the connecting rods 8, and ensure the normal operation of the transmission of the connecting rods 8.

[0033] The working principle of this utility model is as follows: In use, the dual-axis motor 7 and servo motor 14 are first connected to an external power supply and controller. When metal scrap needs to be fed into the metal shredder for crushing, simply put the metal scrap into the feeding rack 4. Then, the dual-axis motor 7, in conjunction with the fixed frame 1, can drive the first bevel gear 9 to rotate via the connecting rod 8. The rotation of the first bevel gear 9, in conjunction with the second bevel gear 10, can drive the screw 2 to rotate. This, in turn, can drive the moving frame 3 and the feeding rack 4 to move upwards until the feeding rack 4 is parallel to the discharge port 11. Utilizing the inclined surface inside the feeding rack 4, the metal scrap can automatically pass through the discharge port 11 and the feed hood 17, falling into the shredding box 12 for shredding. This makes the metal shredder safer and more convenient to use. The metal scrap that needs to be shredded can be easily fed into the shredder for crushing without the need for an additional forklift to lift the metal scrap, which improves the safety and convenience of feeding the metal shredder. After the metal scrap falls into the shredding box 12, the power provided by the two servo motors 14, in conjunction with the shredding box 12 and the speed reduction and torque increase of the reducer 15, can drive the two shredding shafts 13 to rotate simultaneously towards the center position, ensuring the smooth progress of the metal shredding work. Finally, the roller frame 6 slides up and down inside the guide rail 5, which can improve the load-bearing capacity of the feeding frame 4 and the moving frame 3, and prevent the excessive force between the moving frame 3 and the screw 2 from causing the screw 2 to bend and deform. This makes the feeding frame 4 more stable and reliable when feeding metal scrap, further improving the smoothness and safety of the automatic feeding of the metal shredder.

[0034] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automatic feeding device for a metal shredder, comprising a fixed frame (1), characterized in that: The fixed frame (1) is internally connected to two screws (2) and internally connected to a movable frame (3). The outer surfaces of the two screws (2) are threaded to the inner wall of the movable frame (3). The upper surface of the movable frame (3) is fixedly connected to a feeding rack (4). The right side of the feeding rack (4) is in contact with the left side of the fixed frame (1). The left side of the fixed frame (1) is fixedly connected to two guide rails (5). The sides of the two guide rails (5) that are close to each other are in contact with the front and back of the feeding rack (4), respectively. The front and back of the feeding rack (4) are in contact with the movable frame (3). 3) Roller frames (6) are fixedly connected to both the front and back sides. Each roller frame (6) is slidably connected inside the guide rail (5). A dual-axis motor (7) is fixedly connected to the bottom surface of the fixed frame (1). A connecting rod (8) is fixedly connected to both output ends of the dual-axis motor (7). A first bevel gear (9) is fixedly connected to one end of each of the two connecting rods (8). A second bevel gear (10) is fixedly connected to the bottom end of each of the two screws (2). The two second bevel gears (10) mesh with the two first bevel gears (9) respectively. A discharge port (11) is opened on the upper surface of the fixed frame (1).

2. The automatic feeding device for a metal shredder according to claim 1, characterized in that: A shredding box (12) is provided on the right side of the fixed frame (1). Two shredding shafts (13) are rotatably connected inside the shredding box (12). Servo motors (14) are provided on both the front and back of the shredding box (12). Reducers (15) are fixedly connected to both the front and back of the shredding box (12). The output ends of the two reducers (15) are fixedly connected to one end of the two shredding shafts (13), and the output ends of the two servo motors (14) are fixedly connected to the input ends of the two reducers (15).

3. The automatic feeding device for a metal shredder according to claim 2, characterized in that: Two positioning frames (16) are fixedly connected to the left side of the shredder (12), and the left side of each of the two positioning frames (16) is fixedly connected to the right side of the fixing frame (1).

4. The automatic feeding device for a metal shredder according to claim 3, characterized in that: The two positioning frames (16) are fixedly connected to a feeding hood (17) on one side. The bottom surface of the feeding hood (17) is fixedly connected to the upper surface of the shredding box (12). The left side of the feeding hood (17) is fixedly connected to the right side of the fixing frame (1).

5. The automatic feeding device for a metal shredder according to claim 2, characterized in that: The inner wall of the shredding box (12) is fixedly connected to two guide plates (18). The upper surfaces of the two guide plates (18) are inclined surfaces with a certain angle. The two guide plates (18) are respectively set above the two shredding shafts (13).

6. The automatic feeding device for a metal shredder according to claim 2, characterized in that: The bottom surface of the shredder (12) is fixedly connected to a support frame (19), and the bottom surface of the support frame (19) is fixedly connected to four mounting plates (20).

7. The automatic feeding device for a metal shredder according to claim 2, characterized in that: The bottom surfaces of the two servo motors (14) are fixedly connected to the stabilizing bases (21), and the opposite sides of the two stabilizing bases (21) are fixedly connected to the front and back sides of the shredder (12), respectively.

8. The automatic feeding device for a metal shredder according to claim 1, characterized in that: The outer surfaces of the two connecting rods (8) are rotatably connected to two limiting frames (22), and the upper surface of each limiting frame (22) is fixedly connected to the bottom surface of the fixing frame (1).

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