A supporting and unloading frame of PVC pipe production line

By designing an automated linkage and lifting mechanism, the problem of needing to manually push the pipes on the unloading rack of existing PVC pipe production lines has been solved, realizing automatic unloading and height adjustment, thus improving unloading efficiency and practicality.

CN224449567UActive Publication Date: 2026-07-03GANSU KAIYUAN PLASTIC IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GANSU KAIYUAN PLASTIC IND CO LTD
Filing Date
2025-07-01
Publication Date
2026-07-03

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Abstract

This utility model relates to the technical field of pipeline production equipment, specifically a support and unloading rack for a PVC pipe production line, comprising: a base plate; a rectangular frame is provided on the top of the base plate, and support plates are fixedly connected to both sides of the bottom of the rectangular frame. Through the coordinated action of the base plate, rectangular frame, support plates, first rotating shaft, fixed frame, lifting frame, storage hopper, pipe body, and linkage mechanism, this utility model allows the user to automatically unload pipes continuously after pushing all the pipes into the device. This not only reduces the workload of workers but also improves the efficiency of pipe unloading. It solves the problem that while existing support and unloading racks for PVC pipe production lines can unload pipes, workers need to continuously push the pipes into the device, increasing their workload and reducing unloading efficiency.
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Description

Technical Field

[0001] This utility model relates to the technical field of pipeline production equipment, specifically a support and unloading rack for a PVC pipe production line. Background Technology

[0002] PVC pipes are a common piping material, short for polyvinyl chloride pipes. Made from polyvinyl chloride (PVC) resin, they are lightweight, corrosion-resistant, and chemically resistant plastic pipe materials. A PVC pipe production line is the equipment and process used to manufacture PVC pipes. This production line typically includes multiple processes, each with a specific function, ultimately transforming raw PVC material into molded pipe products. A support rack in a PVC pipe production line is a device used to support and unload PVC pipes. It is usually designed as a support or shelf to hold PVC pipes to be processed or already processed for further handling or movement. This equipment is widely used in manufacturing and other industries where materials need to be handled, processed, or transported.

[0003] Utility model patent CN222115978U discloses a support and unloading rack for a PVC pipe production line, belonging to the technical field of pipe production equipment. It addresses the problem in existing technologies where, when unloading large quantities of PVC pipes, manual placement is still required due to the simplicity of the equipment and the use of a pusher box to collect the pipes. The rack includes a support frame with a connecting plate fixedly connected to one side. A lifting mechanism is provided between the connecting plate and the support frame. The lifting mechanism includes a gear and a rack, with the gear meshing with the outer wall of the rack. A sliding rod is fixedly connected to the other side of the rack. A sliding groove is provided inside the fixed column, and the sliding rod is slidably connected inside the groove. The rack is also slidably connected inside the fixed column via the sliding rod. The present invention describes a PVC pipe production line support and unloading rack that, through the cooperation of a bidirectional motor, a rotating shaft, gears, a fixed column, a slide bar, a rack, a slide groove one, a slide groove two, a support plate, an anti-slip plate, and an inclined plate, achieves the effect of rapid unloading of PVC pipes, solving the problem that traditional equipment requires manual unloading and stacking.

[0004] However, the above patent still has shortcomings: although the patent can unload pipes, when the device unloads pipes, workers need to continuously push the pipes into the device, which not only increases the workload of workers, but also reduces the efficiency of pipe unloading. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a support and unloading rack for a PVC pipe production line, which solves the problem mentioned in the background art that although the existing support and unloading racks for PVC pipe production lines can unload pipes, when the device unloads pipes, workers need to continuously push the pipes into the device, which not only increases the workload of workers but also reduces the efficiency of pipe unloading.

[0006] The technical solution of this utility model is:

[0007] A support and unloading rack for a PVC pipe production line includes: a base plate; a rectangular frame is provided on the top of the base plate, and support plates are fixedly connected to both sides of the bottom of the rectangular frame. The bottom ends of the support plates are fixedly connected to the base plate. A first rotating shaft is rotatably connected between the two support plates. A fixed frame is fixedly connected to the top of the rectangular frame. A lifting frame is sleeved on the outer surface of the fixed frame. A storage hopper is fixedly connected to the top of the lifting frame. A plurality of pipe bodies are arranged inside the fixed frame. A linkage mechanism for continuously and automatically unloading PVC pipes is provided on the outer surface of the first rotating shaft. Lifting mechanisms for adjusting the height of transport vehicles are provided on both sides of the storage hopper.

[0008] Preferably, the linkage mechanism includes: three feeding wheels are uniformly fixedly connected to the outer surface of the first rotating shaft, each feeding wheel has a feeding groove at the top center, the feeding groove is adapted to the pipe body, and a protrusion is fixedly connected to one side of each feeding wheel; the two ends of the first rotating shaft pass through the support plate and extend to the rectangular blocks, the two rectangular blocks are fixed to the two ends of the first rotating shaft, and an extension plate is fixedly connected to one side of each of the two rectangular blocks.

[0009] Preferably, a second rotating shaft is fixedly connected to one side of each of the two extension plates. A linkage rod is rotatably connected to the outer surface of each of the second rotating shafts. A third rotating shaft is rotatably connected to the bottom end of each linkage rod. A cam is fixedly connected to the end of each third rotating shaft away from the linkage rod. A fourth rotating shaft is fixedly connected to the center of each of the two cams. The ends of each of the two fourth rotating shafts away from the cams pass through the support plate and extend to the first dual-axis motor. Both of the fourth rotating shafts are fixedly connected to the output end of the first dual-axis motor. A crossbeam is fixedly connected to the bottom of the first dual-axis motor. Both ends of the crossbeam are fixedly connected to the support plate.

[0010] Preferably, the lifting mechanism includes: lifting blocks fixedly connected to both sides of the storage hopper, each lifting block threadedly connected to a screw, the bottom ends of both screws rotatably connected to the base plate, the top ends of both screws penetrating the gantry frame and extending to the outside of the gantry frame, the screws rotatably connected to the gantry frame, and the gantry frame fixedly connected to the base plate; a second dual-axis motor fixedly connected to the top center of the gantry frame, first bevel gears fixedly connected to both output ends of the second dual-axis motor, and second bevel gears meshing with the sides of the two first bevel gears away from the second dual-axis motor, the two second bevel gears being fixedly connected to the screws respectively.

[0011] Preferably, an inclined plate is fixedly connected to the side of the base plate away from the gantry frame, and baffles are fixedly connected to both sides of the inclined plate.

[0012] Preferably, a control box with an internal touch screen is fixedly connected to one side of the gantry frame.

[0013] Preferably, each of the four bottom corners of the base plate is fixedly connected with a universal wheel with a braking function.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] Firstly, through the coordinated action of the base plate, rectangular frame, support plate, first rotating shaft, fixed frame, lifting frame, storage hopper, pipe body, and linkage mechanism, the user only needs to push all the pipes into the device together. The device can then continuously and automatically unload the pipes, which not only reduces the workload of workers but also improves the efficiency of pipe unloading. This solves the problem that although the existing PVC pipe production line's support unloading rack can unload pipes, when the device unloads pipes, workers need to continuously push the pipes into the device, which not only increases the workload of workers but also reduces the efficiency of pipe unloading.

[0016] Secondly, through the coordinated action of the base plate, rectangular frame, support plate, first rotating shaft, fixed frame, lifting frame, storage hopper, pipe body, and lifting mechanism, this utility model enables the device to be freely adjusted according to the height of the transport vehicle, improving its practicality. It solves the problem that the existing PVC pipe production line's unloading rack cannot be freely adjusted according to the height of the transport vehicle, resulting in a height difference between the device and the transport vehicle, requiring workers to move the pipes from the transport vehicle into the device, which is not practical. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a support and unloading rack for a PVC pipe production line according to the present invention.

[0018] Figure 2 This is a side sectional view of the unloading rack for a PVC pipe production line according to the present invention.

[0019] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0020] Figure 4 This is a schematic diagram of the linkage mechanism structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the lifting mechanism of this utility model.

[0022] In the picture:

[0023] 1. Base plate; 2. Rectangular frame; 3. Support plate; 4. First rotating shaft; 5. Fixed frame; 6. Lifting frame; 7. Storage hopper; 8. Pipe body; 9. Linkage mechanism; 10. Lifting mechanism; 11. Feeding wheel; 12. Feeding trough; 13. Protrusion; 14. Rectangular block; 15. Extension plate; 16. Second rotating shaft; 17. Linkage rod; 18. Third rotating shaft; 19. Cam; 20. Fourth rotating shaft; 21. First dual-axis motor; 22. Crossbeam; 23. Lifting block; 24. Screw; 25. Gantry frame; 26. Second dual-axis motor; 27. First bevel gear; 28. Second bevel gear; 29. ​​Inclined plate; 30. Baffle; 31. Control box; 32. Casters. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1 to 5 The present invention will describe the above technical solution in detail through the following embodiments:

[0026] A support and unloading rack for a PVC pipe production line includes: a base plate 1; a rectangular frame 2 is provided on the top of the base plate 1, and support plates 3 are fixedly connected to both sides of the bottom of the rectangular frame 2. The bottom ends of the support plates 3 are fixedly connected to the base plate 1, and a first rotating shaft 4 is rotatably connected between the two support plates 3; a fixed frame 5 is fixedly connected to the top of the rectangular frame 2, and a lifting frame 6 is fitted on the outer surface of the fixed frame 5. A storage hopper 7 is fixedly connected to the top of the lifting frame 6, and a plurality of pipe bodies 8 are provided inside the fixed frame 5; the outer surface of the first rotating shaft 4 is provided with a continuous feed mechanism for the PVC pipes. The linkage mechanism 9 automatically unloads materials; both sides of the storage hopper 7 are equipped with lifting mechanisms 10 for adjusting the height of the transport vehicle. The user adjusts the storage hopper 7 to the same height as the transport vehicle through the lifting mechanism 10, and then pushes the pipe body 8 inside the transport vehicle into the storage hopper 7. The pipe body 8 enters the fixed frame 5 through the inclined surface of the storage hopper 7. Then, the linkage mechanism 9 continuously controls the first rotating shaft 4 to reciprocate. While the first rotating shaft 4 is reciprocating, it continuously transports the pipe body 8 inside the fixed frame 5 to the bottom outside of the device.

[0027] like Figure 3 and Figure 4 As shown, the linkage mechanism 9 includes: three feeding wheels 11 are uniformly fixedly connected to the outer surface of the first rotating shaft 4; each feeding wheel 11 has a feeding groove 12 at the top center, which is adapted to the pipe body 8; and a protrusion 13 is fixedly connected to one side of each feeding wheel 11; the two ends of the first rotating shaft 4 pass through the support plate 3 and extend to the rectangular blocks 14; two rectangular blocks 14 are fixed to the two ends of the first rotating shaft 4; and an extension plate 15 is fixedly connected to one side of each of the two rectangular blocks 14 to extend the rectangular blocks 14. The rectangular block 14 rotates 70 degrees, which in turn drives the first rotating shaft 4. The first rotating shaft 4 drives the feeding wheel 11 to rotate 70 degrees. When the feeding groove 12 of the feeding wheel 11 faces upward, the pipe body 8 inside the fixed frame 5 falls into the feeding groove 12 inside the feeding wheel 11. After the feeding wheel 11 rotates 70 degrees, the feeding wheel 11 discharges the pipe body 8 inside the feeding groove 12 from the inside of the device. At the same time, the feeding wheel 11 rotates and blocks the remaining pipe body 8 inside the fixed frame 5.

[0028] like Figure 4As shown, a second rotating shaft 16 is fixedly connected to one side of each of the two extension plates 15. A linkage rod 17 is rotatably connected to the outer surface of each of the two rotating shafts 16. A third rotating shaft 18 is rotatably connected to the bottom end of each linkage rod 17. A cam 19 is fixedly connected to the end of each of the three rotating shafts 18 away from the linkage rod 17. A fourth rotating shaft 20 is fixedly connected to the center of each of the two cams 19. The ends of the two fourth rotating shafts 20 away from the cams 19 pass through the support plate 3 and extend to the first dual-axis motor 21. Both fourth rotating shafts 20 are fixedly connected to the output end of the first dual-axis motor 21. A crossbeam 22 is fixedly connected to the bottom of the first dual-axis motor 21. Both ends of the crossbeam 22 are fixedly connected to the support plate 3. When the first dual-axis motor 21 is started, the output end of the first dual-axis motor 21 drives the fourth rotating shaft 20 to rotate. While the fourth rotating shaft 20 rotates, it drives the cam 19. The cam 19 drives the third rotating shaft 18 to rotate. While the third rotating shaft 18 rotates, it continuously pushes the bottom end of the linkage rod 17, so that the top end of the linkage rod 17 drives the second rotating shaft 16. The second rotating shaft 16 continuously drives the rectangular block 14 to reciprocate 70 degrees through the extension plate 15.

[0029] like Figure 5 As shown, the lifting mechanism 10 includes: lifting blocks 23 fixedly connected to both sides of the storage hopper 7, and screws 24 threadedly connected to each lifting block 23. The bottom ends of the two screws 24 are rotatably connected to the base plate 1, and the top ends of the two screws 24 penetrate the gantry frame 25 and extend to the outside of the gantry frame 25. The screws 24 are rotatably connected to the gantry frame 25, and the gantry frame 25 is fixedly connected to the base plate 1. A second dual-shaft motor 26 is fixedly connected to the top center of the gantry frame 25. First bevel gears 27 are fixedly connected to both output ends of the second dual-shaft motor 26. The two first bevel gears 27 are located away from the second dual-shaft motor 26. Each side of the shaft motor 26 is meshed with a second bevel gear 28. The two second bevel gears 28 are fixedly connected to the screw 24. When the second dual-shaft motor 26 is started, the output end of the second dual-shaft motor 26 simultaneously drives the first bevel gears 27 on both sides. The first bevel gears 27 drive the second bevel gears 28 respectively, and the second bevel gears 28 drive the screw 24 respectively. The screw 24 rotates through the cooperation of the gantry frame 25 and the base plate 1. While the screw 24 rotates, it drives the lifting block 23. The lifting block 23 drives the storage hopper 7, and the storage hopper 7 drives the lifting frame 6, thereby adjusting the height of the storage hopper 7.

[0030] like Figure 1 and Figure 2 As shown, a sloping plate 29 is fixedly connected to the side of the base plate 1 away from the gantry frame 25. Baffles 30 are fixedly connected to both sides of the sloping plate 29. The discharged pipe body 8 falls onto the sloping plate 29 and rolls to the outside of the device.

[0031] like Figure 1As shown, a control box 31 with an internal touch screen is fixedly connected to one side of the gantry frame 25, which facilitates the user's operation of the device.

[0032] like Figure 1 As shown, the bottom four corners of the base plate 1 are all fixedly connected with casters 32 with braking function, which makes it convenient for users to move and fix the device.

[0033] Working principle: The second dual-axis motor 26 is started. The output of the second dual-axis motor 26 simultaneously drives the first bevel gears 27 on both sides. The first bevel gears 27 drive the second bevel gears 28, which in turn drive the screw 24. The screw 24 rotates through the cooperation of the gantry frame 25 and the base plate 1. Simultaneously, the rotation of the screw 24 drives the lifting block 23, which in turn drives the storage hopper 7. The storage hopper 7 then drives the lifting frame 6, thereby adjusting the storage hopper 7 to the same height as the transport vehicle. Then, workers remove the pipes from inside the transport vehicle. The main body 8 is pushed into the storage hopper 7. Finally, the first dual-shaft motor 21 is started. The output end of the first dual-shaft motor 21 drives the fourth rotating shaft 20 to rotate. While the fourth rotating shaft 20 rotates, it drives the cam 19. The cam 19 drives the third rotating shaft 18 to rotate. While the third rotating shaft 18 rotates, it continuously pushes the bottom end of the linkage rod 17, so that the top end of the linkage rod 17 drives the second rotating shaft 16. The second rotating shaft 16 continuously drives the rectangular block 14 to rotate 70 degrees back and forth through the extension plate 15. The rectangular block 14 rotates simultaneously with... The first rotating shaft 4 drives the feeding wheel 11 to reciprocate at 70 degrees. When the feeding groove 12 of the feeding wheel 11 faces upward, the tube body 8 inside the fixed frame 5 falls into the feeding groove 12 inside the feeding wheel 11. After the feeding wheel 11 rotates 70 degrees, it discharges the tube body 8 inside the feeding groove 12 from the device. At the same time, the feeding wheel 11 blocks the remaining tube body 8 inside the fixed frame 5. The discharged tube body 8 falls onto the inclined plate 29 and is then discharged by the inclined plate 29. Once rolled to the outside of the device, the user only needs to push all the pipes into the device together. The device can then continuously and automatically unload the pipes, which not only reduces the workload of workers but also improves the efficiency of pipe unloading. This solves the problem that while the existing PVC pipe production line's support unloading rack can unload pipes, when the device is unloading pipes, workers need to continuously push the pipes into the device, which not only increases the workload of workers but also reduces the efficiency of pipe unloading.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A support and unloading rack for a PVC pipe production line, comprising: Base plate (1); The feature is that: a rectangular frame (2) is provided on the top of the base plate (1), and a support plate (3) is fixedly connected to both sides of the bottom of the rectangular frame (2). The bottom ends of the support plates (3) are fixedly connected to the base plate (1). A first rotating shaft (4) is rotatably connected between the two support plates (3). A fixed frame (5) is fixedly connected to the top of the rectangular frame (2). A lifting frame (6) is sleeved on the outer surface of the fixed frame (5). A storage hopper (7) is fixedly connected to the top of the lifting frame (6). Several pipe bodies (8) are provided inside the fixed frame (5). The outer surface of the first rotating shaft (4) is provided with a linkage mechanism (9) for continuously and automatically feeding PVC pipes; Both sides of the storage hopper (7) are equipped with lifting mechanisms (10) for adjusting the height of the transport vehicle.

2. A support and unloading rack for a PVC pipe production line as claimed in claim 1, characterized in that: The linkage mechanism (9) includes: The outer surface of the first rotating shaft (4) is uniformly fixedly connected with three feeding wheels (11). Each feeding wheel (11) has a feeding groove (12) at the top center. The feeding groove (12) is adapted to the pipe body (8). Each feeding wheel (11) has a protrusion (13) fixedly connected to one side. The two ends of the first rotating shaft (4) pass through the support plate (3) and extend to the rectangular block (14). The two rectangular blocks (14) are fixed to the two ends of the first rotating shaft (4). An extension plate (15) is fixedly connected to one side of each of the two rectangular blocks (14).

3. A support and unloading rack for a PVC pipe production line as claimed in claim 2, characterized in that: A second rotating shaft (16) is fixedly connected to one side of each of the two extension plates (15). A linkage rod (17) is rotatably connected to the outer surface of each of the two rotating shafts (16). A third rotating shaft (18) is rotatably connected to the bottom end of each linkage rod (17). A cam (19) is fixedly connected to the end of each of the three rotating shafts (18) away from the linkage rod (17). A fourth rotating shaft (20) is fixedly connected to the center of each of the two cams (19). The ends of each of the two fourth rotating shafts (20) away from the cams (19) pass through the support plate (3) and extend to the first dual-axis motor (21). Both of the two fourth rotating shafts (20) are fixedly connected to the output end of the first dual-axis motor (21). A crossbeam (22) is fixedly connected to the bottom of the first dual-axis motor (21). Both ends of the crossbeam (22) are fixedly connected to the support plate (3).

4. A support and unloading rack for a PVC pipe production line as claimed in claim 1, characterized in that: The lifting mechanism (10) includes: Lifting blocks (23) are fixedly connected to both sides of the storage hopper (7). Each lifting block (23) is threaded with a screw (24). The bottom ends of the two screws (24) are rotatably connected to the base plate (1). The top ends of the two screws (24) penetrate the gantry frame (25) and extend to the outside of the gantry frame (25). The screws (24) are rotatably connected to the gantry frame (25). The gantry frame (25) is fixedly connected to the base plate (1). A second dual-axis motor (26) is fixedly connected to the top center of the gantry frame (25). A first bevel gear (27) is fixedly connected to both output ends of the second dual-axis motor (26). A second bevel gear (28) is meshed on the side of the two first bevel gears (27) away from the second dual-axis motor (26). The two second bevel gears (28) are fixedly connected to the screw (24) respectively.

5. A support and unloading frame for a PVC pipe production line according to claim 4, characterized in that: An inclined plate (29) is fixedly connected to the side of the base plate (1) away from the gantry frame (25), and baffles (30) are fixedly connected to both sides of the inclined plate (29).

6. A support and unloading rack for a PVC pipe production line as claimed in claim 4, characterized in that: A control box (31) with an internal touch screen is fixedly connected to one side of the gantry (25).

7. A support and unloading rack for a PVC pipe production line as claimed in claim 1, characterized in that: The bottom four corners of the base plate (1) are all fixedly connected with universal wheels (32) with braking function.