Automatic feeding device for raw materials of power cable protection pipe

Abstract

The utility model discloses a kind of electric power cable protection pipe raw material automatic feeding devices, including installation box, rotatingly installed with rotary table in the installation box, fixedly embedded with screening frame on the rotary table, the rotary table is sleeved with second gear ring, rotatingly installed with driving wheel in the installation box, fixedly installed with discharge pipe in the installation box, the screening frame is rotatably connected with discharge pipe, rotatingly installed with mounting ring in the discharge pipe, discharge pipe is equipped with multiple groups of ring distribution flap, rotating is driven by rotary table screening frame, realize the dynamic screening of raw material, effectively separate the particle and impurity meeting production requirement, metal impurity or agglomerate after screening remains in screen frame, periodically open motor drive a group of mounting shaft in discharge pipe, rotate, under the action of first gear ring and multiple first gear, multiple flap are synchronously opened, metal impurity and agglomerate accumulated in screening frame fall into discharge pipe and are automatically discharged.

Description

Technical Field

[0001] This utility model relates to the field of power cable protection pipe production technology, specifically to an automatic feeding device for power cable protection pipe raw materials. Background Technology

[0002] Cable protection pipes are mainly installed at intersections of communication cables and power lines to prevent short circuits caused by power line breaks, which could lead to energization of communication cables and wire ropes, thus protecting cables, switches, and circuit boards. In the manufacturing process of power cable protection pipes, accurate feeding of raw materials is the primary step to ensure stable product quality. Commonly used pipe materials, such as PVC resin, PE granules, and calcium carbonate powder, need to be continuously and evenly transported to downstream extruders, mixers, or granulation systems through an automated feeding system.

[0003] Currently, raw materials may be mixed with metal impurities such as screws and iron filings or become damp and clump together during transportation or storage. If they are directly introduced into the production process, they will not only affect product quality but may also damage key components such as screws and molds. There are no good screening measures in the existing technology. Traditional feeding devices mostly use manual screening or simple filter screens for interception, which is inefficient and prone to missed detection. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic feeding device for raw materials of power cable protection pipes, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic feeding device for raw materials of power cable protection pipes, comprising an installation box, a rotating frame rotatably installed inside the installation box, a screening frame fixedly embedded on the rotating frame, a second toothed ring sleeved on the rotating frame, a drive wheel rotatably installed inside the installation box, the drive wheel meshing with the second toothed ring, a discharge pipe fixedly installed inside the installation box, the screening frame rotatably connected to the discharge pipe, an installation ring rotatably installed inside the discharge pipe, multiple sets of annularly distributed opening and closing plates provided inside the discharge pipe, the multiple sets of opening and closing plates being rotatably connected to the discharge pipe via an installation shaft, a fixed seat fixedly installed inside the installation box, an installation frame rotatably installed on the fixed seat, a roller brush rotatably installed on the installation frame, the roller brush being fitted against the inner surface of the filter frame.

[0006] As a further preferred embodiment of this technical solution, a first toothed ring is sleeved on the mounting ring, and multiple sets of mounting shafts are distributed in a ring around the mounting ring. Each set of mounting shafts is sleeved with a first gear, and the multiple sets of first gears are meshed with the first toothed ring.

[0007] As a further preferred embodiment of this technical solution, a second gear is sleeved on the mounting bracket, a rack is slidably installed in the fixed seat, the rack is meshed with the second gear, a cylinder is fixedly installed in the fixed seat, and the rack is fixedly connected to the output end of the cylinder piston rod.

[0008] As a further preferred embodiment of this technical solution, a scraper is slidably mounted on the mounting frame, the scraper is in contact with the surface of the roller brush, a first slide rod is fixedly mounted inside the mounting frame, and a cam is rotatably mounted on the mounting frame, the cam being in contact with the scraper.

[0009] As a further preferred embodiment of this technical solution, the scraper is slidably sleeved with the first slide rod, and two sets of symmetrically distributed first springs are sleeved on the first slide rod. The two ends of the two sets of first springs are respectively fixedly connected to the scraper and the mounting bracket.

[0010] As a further preferred embodiment of this technical solution, a positioning frame is fixedly installed inside the mounting box, a rubber cover is sleeved on the positioning frame, a top rod is slidably installed on the positioning frame, the top rod is fitted against the lower surface of the filter frame, the rubber cover is fixedly bonded to the positioning frame and the top rod respectively, a second sliding rod is fixedly installed inside the positioning frame, a connecting rod is rotatably installed on the top rod, and a crank is rotatably installed inside the positioning frame, the crank being rotatably connected to the end of the connecting rod away from the top rod via a rotating shaft.

[0011] As a further preferred embodiment of this technical solution, two sets of symmetrically distributed second springs are sleeved on the second slide rod, the top rod is slidably sleeved with the second slide rod, and the two ends of the two sets of second springs are respectively fixedly connected to the top rod and the positioning frame.

[0012] This utility model provides an automatic feeding device for raw materials of power cable protection pipes, which has the following beneficial effects:

[0013] (1) This utility model achieves dynamic screening of raw materials by rotating the screen frame through the rotating frame, effectively separating particles and impurities that meet production requirements. The metal impurities or lumps after screening remain in the screen frame. The motor in the discharge pipe is periodically turned on to drive a set of mounting shafts to rotate. Under the action of the first gear ring and multiple sets of first gears, the multiple sets of mounting shafts drive the corresponding opening and closing plates to open synchronously, dropping the metal impurities and lumps accumulated in the screen frame into the discharge pipe and automatically discharging them. This design not only has high screening accuracy, but also avoids manual intervention, significantly improves feeding efficiency, and protects subsequent production equipment such as screws and molds from damage by metal impurities or hard blocks.

[0014] (2) This utility model utilizes a roller that automatically rotates on the mounting frame and closely adheres to the inner surface of the screening frame. During the rotation of the screening frame by the drive wheel and the second toothed ring, adhering raw material particles are removed in real time, preventing screen blockage. During the use of the roller brush, the scraper brush, in contact with the roller brush, periodically scrapes away residue on the roller brush surface under the action of the cam and the first spring, ensuring a long-lasting and stable cleaning effect and preventing secondary pollution of the screening frame by impurities on the roller brush. Furthermore, during the rotation of the crank driven by the motor in the positioning frame, the connecting rod causes the push rod to slide up and down in the positioning frame. Combined with the elastic buffer of the rubber cover and the reset action of the second spring, the push rod vibrates slightly, intermittently pushing the screening frame to further clear the screen holes. This double protection ensures the continuous unobstructed flow of the screening frame, reduces downtime maintenance frequency, and extends the service life of the device. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of the internal structure of the mounting box of this utility model;

[0017] Figure 3 This is a schematic diagram showing the structural separation of the screening frame and the discharge pipe of this utility model;

[0018] Figure 4 For the present utility model Figure 3 Enlarged view of the structure at point A;

[0019] Figure 5 For the present utility model Figure 3 Enlarged view of the structure at point -B;

[0020] Figure 6 For the present utility model Figure 3 Enlarged view of the structure at point C;

[0021] Figure 7 This is a schematic diagram showing the separation of the positioning frame and the top rod of this utility model;

[0022] In the diagram: 1. Mounting box; 2. Rotating frame; 3. Screening frame; 4. Second gear ring; 5. Drive wheel; 6. Discharge pipe; 7. Opening and closing plate; 8. Mounting shaft; 9. First gear; 10. Mounting ring; 11. First gear ring; 12. Fixed seat; 13. Mounting frame; 14. Second gear; 15. Rack; 16. Cylinder; 17. Roller brush; 18. Scraper brush; 19. First slide rod; 20. First spring; 21. Cam; 22. Positioning frame; 23. Rubber cover; 24. Top rod; 25. Second slide rod; 26. Second spring; 27. Connecting rod; 28. Crank. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] This utility model provides a technical solution: such as Figures 1-7 As shown, in this embodiment, an automatic feeding device for raw materials of power cable protection pipes includes a mounting box 1. A rotating frame 2 is rotatably mounted inside the mounting box 1. A screening frame 3 is fixedly embedded on the rotating frame 2. A second toothed ring 4 is sleeved on the rotating frame 2. A drive wheel 5 is rotatably mounted inside the mounting box 1, and the drive wheel 5 is meshed with the second toothed ring 4. A discharge pipe 6 is fixedly mounted inside the mounting box 1. The screening frame 3 is rotatably connected to the discharge pipe 6. An installation ring 10 is rotatably mounted inside the discharge pipe 6. Multiple sets of annularly distributed opening and closing plates 7 are provided inside the discharge pipe 6. The multiple sets of opening and closing plates 7 are rotatably connected to the discharge pipe 6 through an installation shaft 8. A fixing seat 12 is fixedly mounted inside the mounting box 1. An installation frame 13 is rotatably mounted on the fixing seat 12. A roller brush 17 is rotatably mounted on the installation frame 13. The 7 is fitted to the inner surface of the filter frame. A first toothed ring 11 is sleeved on the mounting ring 10. Multiple sets of mounting shafts 8 are distributed in a ring around the mounting ring 10, and each set of mounting shafts 8 is fitted with a first gear 9. All sets of first gears 9 mesh with the first toothed ring 11. The rotating frame 2 drives the screen frame 3 to rotate, dynamically screening the raw materials. Particles meeting the requirements pass through the screen holes, while metal impurities or lumps remain inside the screen frame 3. When impurities need to be discharged, the motor in the discharge pipe 6 drives one set of mounting shafts 8 to rotate. Through the meshing transmission between the first toothed ring 11 and the multiple sets of first gears 9, all mounting shafts 8 rotate synchronously, causing the corresponding opening and closing plates 7 to open. At this time, the metal impurities and lumps accumulated in the screen frame 3 fall into the discharge pipe 6 and are automatically discharged. This design improves screening accuracy, reduces manual intervention, and prevents impurities from entering subsequent processing stages, protecting critical components such as the screw and mold.

[0025] like Figures 5-7As shown, a second gear 14 is sleeved on the mounting bracket 13, a rack 15 is slidably mounted in the fixed base 12, and the rack 15 meshes with the second gear 14. A cylinder 16 is fixedly mounted in the fixed base 12, and the rack 15 is fixedly connected to the output end of the piston rod of the cylinder 16. A scraper 18 is slidably mounted on the mounting bracket 13, and the scraper 18 is in contact with the surface of the roller brush 17. A first slide rod 19 is fixedly mounted in the mounting bracket 13. A cam 21 is rotatably mounted on the mounting bracket 13, and the cam 21 is in contact with the scraper 18. The scraper 18 and the first slide rod 19 are fixedly mounted in the mounting bracket 13. The slide rod 19 is slidably sleeved, and two sets of symmetrically distributed first springs 20 are sleeved on the first slide rod 19. The two ends of the two sets of first springs 20 are fixedly connected to the scraper 18 and the mounting bracket 13, respectively. A positioning bracket 22 is fixedly installed inside the mounting box 1. A rubber cover 23 is sleeved on the positioning bracket 22. A top rod 24 is slidably installed on the positioning bracket 22. The top rod 24 is fitted against the lower surface of the filter frame. The rubber cover 23 is fixedly bonded to the positioning bracket 22 and the top rod 24, respectively. A second slide rod 25 is fixedly installed inside the positioning bracket 22. A rotating mounting is installed on the top rod 24. A connecting rod 27 is provided, and a crank 28 is rotatably mounted inside the positioning frame 22. The crank 28 is rotatably connected to the end of the connecting rod 27 away from the top rod 24 via a rotating shaft. Two sets of symmetrically distributed second springs 26 are sleeved on the second slide rod 25. The top rod 24 is slidably sleeved with the second slide rod 25. The two ends of the two sets of second springs 26 are respectively fixedly connected to the top rod 24 and the positioning frame 22. The roller brush 17 rotates on the mounting frame 13 and is in close contact with the inner surface of the rotating screen frame 3, brushing away the adhering raw material particles in real time to prevent screen hole blockage. The scraper 18... The cam 21 and the first spring 20 periodically scrape the surface of the roller brush 17 to remove the impurities adsorbed thereon, ensuring that the roller brush 17 is continuously and efficiently cleaned and avoiding secondary pollution. At the same time, the motor in the positioning frame 22 drives the crank 28 to rotate, which drives the push rod 24 to move up and down reciprocally through the connecting rod 27. Under the buffering effect of the rubber cover 23 and the second spring 26, the push rod 24 intermittently pushes the screen frame 3, generating slight vibration, which further unblocks the screen holes. This double protection ensures the smooth flow of the screen frame 3, reduces maintenance needs, and extends the service life of the equipment.

[0026] This utility model provides an automatic feeding device for raw materials of power cable protection pipes. The specific working principle is as follows: The rotating frame 2 drives the screen frame 3 to rotate, which dynamically screens the raw materials, allowing the qualified particles to pass through the screen holes, while metal impurities or lumps remain in the screen frame 3. When it is necessary to discharge impurities, the motor in the discharge pipe 6 drives one set of mounting shafts 8 to rotate. Through the meshing transmission of the first gear ring 11 and multiple sets of first gears 9, all mounting shafts 8 rotate synchronously, driving the corresponding opening and closing plates 7 to open. At this time, the metal impurities and lumps accumulated in the screen frame 3 fall into the discharge pipe 6 and are automatically discharged. This design improves screening accuracy, reduces manual intervention, and prevents impurities from entering subsequent processing stages, protecting key components such as screws and molds. The roller brush 17 rotates on the mounting frame 13 and closely adheres to the inner surface of the rotating screen frame 3, brushing away adhering raw material particles in real time to prevent screen hole blockage. The scraper brush 18, under the action of the cam 21 and the first spring 20, periodically scrapes the surface of the roller brush 17 to remove adsorbed impurities, ensuring continuous and efficient cleaning of the roller brush 17 and avoiding secondary pollution. At the same time, the motor in the positioning frame 22 drives the crank 28 to rotate, which drives the push rod 24 to move up and down reciprocally through the connecting rod 27. Under the buffering action of the rubber cover 23 and the second spring 26, the push rod 24 intermittently pushes the screen frame 3, generating slight vibration, further clearing the screen holes. This double protection ensures the smooth flow of the screen frame 3, reduces maintenance needs, and extends the service life of the equipment.

[0027] 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 kind of power cable protection pipe raw material automatic feeding device, including installation box (1), it is characterized in that: A rotating frame (2) is rotatably installed inside the mounting box (1). A screening frame (3) is fixedly embedded on the rotating frame (2). A second toothed ring (4) is sleeved on the rotating frame (2). A drive wheel (5) is rotatably installed inside the mounting box (1). The drive wheel (5) is meshed with the second toothed ring (4). A discharge pipe (6) is fixedly installed inside the mounting box (1). The screening frame (3) is rotatably connected to the discharge pipe (6). A rotating frame (3) is rotatably installed inside the discharge pipe (6). There is an installation ring (10), and multiple sets of annularly distributed opening and closing plates (7) are provided in the discharge pipe (6). The multiple sets of opening and closing plates (7) are rotatably connected to the discharge pipe (6) through the installation shaft (8). A fixed seat (12) is fixedly installed in the installation box (1). An installation frame (13) is rotatably installed on the fixed seat (12). A roller brush (17) is rotatably installed on the installation frame (13). The roller brush (17) is fitted to the inner surface of the filter frame.

2. The automatic raw material loading device for power cable protection pipe according to claim 1, characterized in that: A first toothed ring (11) is sleeved on the mounting ring (10). Multiple sets of mounting shafts (8) are distributed in a ring around the mounting ring (10). A first gear (9) is sleeved on each of the multiple sets of mounting shafts (8). The multiple sets of first gears (9) are meshed with the first toothed ring (11).

3. The automatic raw material loading device for power cable protection pipe according to claim 1, characterized in that: A second gear (14) is sleeved on the mounting bracket (13), and a rack (15) is slidably installed in the fixed seat (12). The rack (15) meshes with the second gear (14), and a cylinder (16) is fixedly installed in the fixed seat (12). The rack (15) is fixedly connected to the output end of the piston rod of the cylinder (16).

4. The automatic raw material loading device for power cable protection pipe according to claim 1, characterized in that: A scraper (18) is slidably mounted on the mounting bracket (13). The scraper (18) is in contact with the surface of the roller brush (17). A first slide rod (19) is fixedly mounted inside the mounting bracket (13). A cam (21) is rotatably mounted on the mounting bracket (13). The cam (21) is in contact with the scraper (18).

5. The automatic raw material loading device for power cable protection pipe according to claim 4, characterized in that: The scraper (18) is slidably sleeved with the first slide rod (19), and two sets of symmetrically distributed first springs (20) are sleeved on the first slide rod (19). The two ends of the two sets of first springs (20) are respectively fixedly connected to the scraper (18) and the mounting bracket (13).

6. The automatic feeding device for raw materials of power cable protection pipe according to claim 1, characterized in that: A positioning frame (22) is fixedly installed inside the mounting box (1). A rubber cover (23) is sleeved on the positioning frame (22). A top rod (24) is slidably installed on the positioning frame (22). The top rod (24) is fitted to the lower surface of the filter frame. The rubber cover (23) is fixedly bonded to the positioning frame (22) and the top rod (24) respectively. A second sliding rod (25) is fixedly installed inside the positioning frame (22). A connecting rod (27) is rotatably installed on the top rod (24). A crank (28) is rotatably installed inside the positioning frame (22). The crank (28) is rotatably connected to the end of the connecting rod (27) away from the top rod (24) through a rotating shaft.

7. The automatic feeding device for raw materials of power cable protection pipes according to claim 6, characterized in that: Two sets of symmetrically distributed second springs (26) are sleeved on the second slide rod (25). The top rod (24) is slidably sleeved with the second slide rod (25). The two ends of the two sets of second springs (26) are fixedly connected to the top rod (24) and the positioning frame (22) respectively.

Images