A safe and reliable finned tube unfinning machine

Abstract

The application relates to the technical field of heat exchange tube production equipment, and discloses a safe and reliable finned tube disassembling machine, which comprises a bottom plate, a tube body and a protective cover. A driving assembly is fixedly connected to the left side of the bottom plate. A friction wheel in contact with the tube body is fixedly connected to the right side of the driving assembly. A clamping groove is arranged on the right side of the friction wheel. A plastic plate is fixedly connected to the bottom end of the inner wall of the bottom plate. A clamping block is fixedly connected to the right side of the plastic plate. A rotating shaft is rotatably connected to the inner wall of the plastic plate. A magnetic bar is fixedly connected to the left side of the rotating shaft. A plurality of rubber balls are fixedly connected to the left side of the magnetic bar and are clamped with the clamping groove. A sliding plate is threadedly connected to the outside of the driving assembly. In the application, after the finned tube is disassembled, the motor only needs to be reversed, so that the grinding tool can automatically adhere to the tube body for grinding, the finned tube does not need to be transferred to replace the equipment, the production cycle is greatly shortened, and the cost of manpower and material resources consumption is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat exchange tube production equipment, and particularly relates to a safe and reliable finned tube disassembling machine. BACKGROUND

[0002] The technical field of heat exchange tube production equipment is a professional technology for manufacturing heat exchange core components, and covers process links such as pipe forming, surface treatment and welding. The equipment forms a base pipe through precise rolling or extrusion process, and then attaches fins or spiral structures to the pipe body through high-frequency welding, brazing and other technologies to improve the heat exchange area and efficiency. The finned tube disassembling machine is a special equipment designed for recycling waste finned tubes, and aims to strip the pipe body and fins to realize material recycling. The equipment fixes the finned tube through mechanical clamping, and uses rotating cutters or stripping devices to cut or extrude the joint between the fins and the base pipe, so that the fins are separated from the pipe body.

[0003] In the prior art, some disassembling machines need to switch machines to polish the outside of the pipe after disassembling the finned tube. In this operation process of disassembling first and then switching to polishing equipment, the complexity of the process is inevitably increased, the production cycle is prolonged, and frequent equipment switching also brings additional labor and material costs.

[0004] Therefore, a safe and reliable finned tube disassembling machine is proposed to solve the above problems. SUMMARY

[0005] In order to make up for the above shortcomings, the present application provides a safe and reliable finned tube disassembling machine, which aims to improve the problem that the disassembling machine in the prior art needs to switch machines to polish the outer pipe after disassembling the finned tube, increases the complexity of the process, prolongs the production cycle, and brings more labor and material costs.

[0006] In order to achieve the above purpose, the present application adopts the following technical solutions:

[0007] The application discloses a safe and reliable fin tube disassembling machine which comprises a bottom plate, a tube body and a protective cover, a driving assembly is fixedly connected to the left side of the bottom plate, a friction wheel in contact with the tube body is fixedly connected to the right side of the driving assembly, a clamping groove is formed in the right side of the friction wheel, a plastic plate is fixedly connected to the bottom end of the inner wall of the bottom plate, a clamping block is fixedly connected to the right side of the plastic plate, a rotating shaft is rotatably connected to the inner wall of the plastic plate, a magnetic bar is fixedly connected to the left side of the rotating shaft, a plurality of rubber balls are fixedly connected to the left side of the magnetic bar and are clamped in the clamping groove, a sliding plate is threadedly connected to the outer side of the driving assembly, a quick release assembly is fixedly connected to the right side of the sliding plate, a cutter head is fixedly connected to the right side of the quick release assembly, two rotating blocks are rotatably connected to the inside of the cutter head, a scraper and a grinding tool are fixedly connected to the left and right sides of the rotating blocks respectively, and a magnet is further fixedly connected to the left side of the rotating block.

[0008] As a further description of the above technical solution:

[0009] The driving assembly comprises a motor, the bottom end of the motor is fixedly connected to the left side of the bottom plate, a main pulley is fixedly connected to the driving end of the motor, a driven pulley is rotatably connected to the left side of the inner wall of the bottom plate, a belt is sleeved outside the main pulley and the driven pulley, a threaded rod is fixedly connected to the right side of the main pulley, the other end of the threaded rod is rotatably connected to the right inner wall of the bottom plate, the left side of the friction wheel is fixedly connected to the right side of the driven pulley, and the inner wall of the sliding plate is threadedly connected outside the threaded rod.

[0010] As a further description of the above technical solution:

[0011] The right inner wall of the bottom plate is provided with a clamping mechanism, a plurality of rolling columns for clamping one end of the tube body are rotatably connected to the inner wall of the clamping mechanism, and a support column for supporting the other end of the tube body is fixedly connected to the left side of the inner wall of the bottom plate.

[0012] As a further description of the above technical solution:

[0013] The quick release assembly comprises a clamping frame, the left side of the clamping frame is fixedly connected to the right side of the sliding plate, a clamping ring is detachably connected to the inner wall of the clamping frame, the left side of the cutter head is fixedly connected to the right side of the clamping ring, a rubber column is detachably connected to the top end of the clamping frame and is clamped in the clamping ring, and a top plate is fixedly connected to the top end of the rubber column.

[0014] As a further description of the above technical solution:

[0015] Two limiting columns are fixedly connected to the front and back sides of the rotating block, and a plurality of limiting grooves are formed in the inner wall of the cutter head and are used for limiting the sliding range of the limiting columns.

[0016] As a further description of the above technical solution:

[0017] The inside of the shield is inlaid with a transparent plastic plate, and the left side of the main pulley is rotationally connected to the inner wall left side of the bottom plate;

[0018] As a further description of the above technical solution:

[0019] The right side of the friction wheel is in contact with the left side of the magnetic bar, and the outside of the clamping block is slidingly connected to the right side of the rotating shaft;

[0020] As a further description of the above technical solution:

[0021] The bottom end of the sliding plate is slidingly connected to the inner wall bottom end of the bottom plate, and the bottom end of the top plate is in contact with the top end of the clamping frame.

[0022] The present application has the following beneficial effects:

[0023] 1、In the present application, the magnetic repulsion and attraction of the magnetic bar and the magnet are converted to drive the rotating block to drive the scraper and the grinding wheel to switch the working state. After the finned tube is disassembled, the motor only needs to be reversed to automatically grind the grinding wheel against the tube body, without the need to transfer the finned tube to change the equipment, greatly shortening the production cycle and reducing the cost of manpower and material resources;

[0024] 2、In the present application, the cutter head is designed with a quick release assembly, which is quickly clamped and fixed by the clamping ring, the clamping frame and the rubber column. When the cutter head needs to be repaired, the worker does not need to use complex tools to quickly disassemble the cutter head. This convenient disassembly method can timely eliminate equipment hazards, reduce downtime maintenance time, ensure continuous and efficient operation of the disassembly operation, and ensure production progress. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 A three-dimensional schematic view of a safe and reliable finned tube disassembling machine is proposed in the present application;

[0026] Figure 2 A structure schematic view of a drive assembly of a safe and reliable finned tube disassembling machine is proposed in the present application;

[0027] Figure 3 A structure schematic view of a clamping mechanism of a safe and reliable finned tube disassembling machine is proposed in the present application;

[0028] Figure 4 A structure schematic view of a magnetic bar of a safe and reliable finned tube disassembling machine is proposed in the present application;

[0029] Figure 5 A structure schematic view of a magnetic bar of a safe and reliable finned tube disassembling machine is proposed in the present application; Figure 4 An enlarged view of A of the present application;

[0030] Figure 6An exploded view of the support structure for a safe and reliable finned tube de-finning machine proposed in this invention;

[0031] Figure 7 Exploded view of the quick-release assembly of a safe and reliable finned tube de-finning machine proposed in this invention;

[0032] Figure 8 This is a schematic diagram of the cutter head of a safe and reliable finned tube decoupling machine proposed in this invention;

[0033] Figure 9 for Figure 8 Enlarged view of point B.

[0034] Legend:

[0035] 1. Base plate; 2. Tube body; 3. Protective cover; a. Drive assembly; 4. Motor; 5. Main pulley; 6. Driven pulley; 7. Belt; 8. Threaded rod; 9. Clamping mechanism; 10. Roller; 11. Support column; 12. Friction wheel; 13. Slot; 14. Plastic plate; 15. Clamping block; 16. Magnetic rod; 17. Rotating shaft; 18. Rubber ball; 19. Slide plate; b. Quick release assembly; 20. Clamping frame; 21. Clamping ring; 22. Cutter disc; 23. Rubber column; 24. Top plate; 25. Rotating block; 26. Scraper; 27. Sharpening tool; 28. Magnet; 29. ​​Limiting post; 30. Limiting groove. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Reference Figures 1 to 3 This invention provides an embodiment of a safe and reliable finned tube dismantling machine, comprising a base plate 1, a tube body 2, and a protective cover 3. The protective cover 3 is rotatably connected to the rear end of the base plate 1 in a flip-type manner, which can prevent the cut fins from splashing and injuring the workers, thus providing protection. A transparent plastic glass plate is embedded inside the protective cover 3. The transparent plastic glass plate ensures that the machine itself is strong enough to allow workers to easily observe the dismantling process of the finned tubes inside. A drive assembly a is fixedly connected to the left side of the base plate 1. The drive assembly a includes a motor 4. The bottom end of the motor 4 is fixedly connected to the left side of the base plate 1. Here, the base plate 1 provides support and fixation for the motor 4. A main pulley 5 is fixedly connected to the drive end of the motor 4. The left side of the main pulley 5 is rotatably connected to the left side of the inner wall of the base plate 1. When the motor 4 starts and rotates forward, it drives the main pulley 5 to rotate together.

[0038] A driven pulley 6 is rotatably connected to the left side of the inner wall of the base plate 1. A belt 7 is fitted around the outside of the main pulley 5 and the driven pulley 6. Because the belt 7 connects the main pulley 5 and the driven pulley 6, when the main pulley 5 rotates, it drives the belt 7 to rotate, thereby driving the driven pulley 6 to rotate as well. A threaded rod 8 is fixedly connected to the right side of the main pulley 5. The other end of the threaded rod 8 is rotatably connected to the inner right side of the base plate 1. When the main pulley 5 rotates, it drives the threaded rod 8 to rotate as well. A clamping mechanism 9 is provided on the inner right side of the base plate 1. The clamping mechanism 9 is used to clamp one end of the finned tube, serving a fixing function. Multiple rollers 10 are rotatably connected to the inner wall of the clamping mechanism 9 for clamping one end of the tube 2. These rollers 10 ensure that the finned tube is clamped and fixed while still allowing rotation. A support column 11 is fixedly connected to the left side of the inner wall of the base plate 1 to support the other end of the tube 2. This support column 11 can be inserted into the inner wall of the finned tube, working in conjunction with the clamping mechanism 9 to fix the finned tube and prevent shaking or even flying out during disassembly. A friction wheel 12 that contacts the tube 2 is fixedly connected to the right side of the drive assembly a. The left side of the friction wheel 12 is fixedly connected to the right side of the driven pulley 6. When the driven pulley 6 rotates, it drives the friction wheel 12 to rotate, thereby using friction to rotate the tube 2.

[0039] Reference Figures 4 to 6 A slot 13 is provided on the right side of the friction wheel 12. A plastic plate 14 is fixedly connected to the bottom of the inner wall of the base plate 1. The plastic plate 14 is made of plastic and rubber, which is stable and does not have any magnetic field interference capability. A locking block 15 is fixedly connected to the right side of the plastic plate 14. A rotating shaft 17 is rotatably connected to the inner wall of the plastic plate 14. The outer side of the locking block 15 is slidably connected to the right side of the rotating shaft 17. At this point, half of the end of the rotating shaft 17 near the locking block 15 is cut off, so that under the restriction of the locking block 15, the maximum rotation angle when the rotating shaft 17 rotates is 1. At 80 degrees, a magnetic rod 16 is fixedly connected to the left side of the rotating shaft 17. The magnetic rod 16 here is a high-strength type, with an effective magnetic field range of approximately 2 meters, which can completely cover this disassembly device. The right side of the friction wheel 12 is in contact with the left side of the magnetic rod 16. Multiple rubber balls 18 that engage with the slot 13 are fixedly connected to the left side of the magnetic rod 16. When the friction wheel 12 rotates, the engagement of the rubber balls 18 will drive the magnetic rod 16 to rotate. Due to the presence of the rotating shaft 17 and the locking block 15, the maximum rotation angle of the magnetic rod 16 here is only 180 degrees.

[0040] Reference Figure 1 and Figure 7The drive assembly a has an external threaded connection to a slide plate 19. The inner wall of the slide plate 19 is threaded to the outside of a threaded rod 8. When the threaded rod 8 rotates, it can drive the slide plate 19 to move left and right. The bottom end of the slide plate 19 is slidably connected to the bottom end of the inner wall of the base plate 1. There are two limit blocks at the bottom end of the slide plate 19 to ensure the stability of the slide plate 19 during sliding and prevent deviation. The right side of the slide plate 19 is fixedly connected to a quick-release assembly b, which includes a retaining frame 20. The left side of the retaining frame 20 is fixedly connected to the right side of the slide plate 19. The inner wall of the retaining frame 20 is detachably connected to a retaining ring 21. The top end of the retaining frame 20 can... The quick-release assembly b has a rubber post 23 that engages with the retaining ring 21. The top of the rubber post 23 is fixedly connected to a top plate 24. The bottom of the top plate 24 contacts the top of the retaining frame 20. Before removing the finned tube, the retaining ring 21 can be inserted into the retaining frame 20. Then, the rubber post 23 is aligned with the groove at the top of the retaining ring 21 and slid down, so that the rubber post 23 is inserted into the retaining frame 20. At the same time, the top plate 24 acts as a cap. The right side of the quick-release assembly b is fixedly connected to a cutter disc 22. The cutter disc 22 is the main cutting tool for removing the finned tube. The left side of the cutter disc 22 is fixedly connected to the right side of the retaining ring 21.

[0041] Reference Figure 4 , Figure 8 and Figure 9 The cutter head 22 has two rotating blocks 25 internally connected. A scraper 26 and a grinding blade 27 are fixedly connected to both sides of each rotating block 25. This rotating block 25 is a switching device that can switch between the scraper 26 (for disassembling the finned tube) and the grinding blade 27 (for polishing the disassembled outer tube to remove burrs, etc.). This eliminates the need to move the finned tube to a dedicated polishing device after disassembly, reducing processes, manpower, and material consumption, and lowering costs. A magnet 28 is also fixedly connected to the left side of the rotating block 25. The magnetic rod 16 attracts both magnets 28 simultaneously. The magnets 28 here are strong permanent magnets with fixed poles, meaning they possess fixed and lasting magnetism. Figure 8 The state shown is a repulsive state. After the magnetic rod 16 rotates 180 degrees, the magnetic field can be switched. After the switch, the state of the two can be switched to an attractive state, thereby driving the rotating block 25 to rotate, thus switching the disassembly mode to the grinding mode. Two limiting posts 29 are fixedly connected to the front and rear sides of the rotating block 25. The inner wall of the cutter head 22 is provided with multiple limiting grooves 30 to limit the sliding range of the limiting posts 29. The limiting posts 29 and the limiting grooves 30 cooperate with each other to limit the rotation range of the rotating block 25 and prevent it from leaving the interior of the cutter head 22.

[0042] Working principle: First, motor 4 starts and rotates forward, which drives the main pulley 5 to rotate. The main pulley 5 transmits power to the driven pulley 6 through belt 7. The rotation of the driven pulley 6 in turn drives the friction wheel 12 to rotate. The friction wheel 12 drives the tube body 2 to rotate by friction. At the same time, the rotation of the main pulley 5 also drives the threaded rod 8 to rotate. The rotation of the threaded rod 8 causes the slide plate 19 to move to the right. The slide plate 19 drives the quick-release assembly b and the cutter head 22 to move.

[0043] Before use, insert the retaining ring 21 into the retaining frame 20, then slide the rubber post 23 into the groove at the top of the retaining ring 21, and seal the top plate 24 to complete the installation of the quick-release component b. Clamp one end of the finned tube with the clamping mechanism 9 through the roller 10, and support and fix the other end with the support column 11. When the friction wheel 12 rotates, the presence of the rubber ball 18 will cause it to drive the magnetic rod 16 to rotate. However, due to the restriction of the retaining block 15, the magnetic rod 16 will be stuck after driving the rotating shaft 17 to rotate 180 degrees. At this time, the driving force transmitted by the motor 4 will cause the friction wheel 12 to continue to rotate. Since the rubber ball 18 is made of rubber, it can deform within a certain range, thereby canceling the engagement with the friction wheel 12. At this time, the friction wheel 12 continues to rotate, but the magnetic rod 16 will stop, while ensuring a vertical state. At this time, the magnetic poles between the magnetic rod 16 and the two magnets 28 are the same, so a repulsive force is generated, causing the rotating block 25 to rotate clockwise. At this time, the scraper 26 will be in close contact with the outer surface of the tube 2. As the slide plate 19 moves to the right and the tube 2 itself rotates, the fins on the surface of the tube 2 are cut off.

[0044] After completing this step, i.e., the skateboard 19 moves to the far right of the bottom plate 1, the reverse motor 4 generates a reverse force, which is then transmitted back to the magnetic rod 16, causing it to reverse 180 degrees and be restricted again by the locking block 15 and the rotating shaft 17. At this time, because the magnetic rod 16 has rotated 180 degrees, the magnetic poles change, and the repulsion between the magnetic rod 16 and the two magnets 28 changes to attraction, which in turn drives the rotating block 25 to rotate counterclockwise, so that the grinding blade 27 is in close contact with the outer surface of the tube 2. At this time, under the reverse force of the motor 4, the skateboard 19 moves to the left, and the grinding blade 27 also grinds the outer surface of the tube 2, cleaning up the waste and burrs. There is no need to worry about the strength of the magnetism. The magnetic rod 16 and the magnets 28 here are strong magnetic types, with an effective magnetic field range of about 2 meters, which can completely cover the entire disassembly device. At the same time, the plastic plate 14 is made of plastic and rubber, which has no effect on the magnetic field of the magnetic rod 16 and the magnets 28 themselves.

[0045] This design saves a step compared to the existing method of replacing the machine after disassembly and then grinding, thus shortening the production cycle and reducing labor and material costs. The detachable cutter head 22 also facilitates easy removal and maintenance by workers, ensuring efficient disassembly. Furthermore, the protective cover 3 effectively prevents fins from flying during disassembly, preventing accidental injury to workers and improving safety.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A safe and reliable finned tube de-finning machine, comprising a base plate (1), a tube body (2), and a protective cover (3), characterized in that: A drive assembly (a) is fixedly connected to the left side of the base plate (1). A friction wheel (12) that contacts the tube body (2) is fixedly connected to the right side of the drive assembly (a). A slot (13) is provided on the right side of the friction wheel (12). A plastic plate (14) is fixedly connected to the bottom of the inner wall of the base plate (1). A locking block (15) is fixedly connected to the right side of the plastic plate (14). A rotating shaft (17) is rotatably connected to the inner wall of the plastic plate (14). A magnetic rod (16) is fixedly connected to the left side of the rotating shaft (17). A plurality of locking blocks (15) are fixedly connected to the left side of the magnetic rod (16). 13) The engaging rubber ball (18) has a sliding plate (19) externally threaded onto the drive assembly (a). A quick-release assembly (b) is fixedly connected to the right side of the sliding plate (19). A cutter disc (22) is fixedly connected to the right side of the quick-release assembly (b). Two rotating blocks (25) are rotatably connected inside the cutter disc (22). A scraper (26) and a grinding blade (27) are fixedly connected to the two sides of the rotating blocks (25) respectively. A magnet (28) is also fixedly connected to the left side of the rotating blocks (25). The magnetic rod (16) and the two magnets (28) attract or repel each other simultaneously. The drive assembly (a) includes a motor (4), the bottom end of which is fixedly connected to the left side of the base plate (1), the drive end of which is fixedly connected to a main pulley (5), a driven pulley (6) is rotatably connected to the left side of the inner wall of the base plate (1), a belt (7) is sleeved on the outside of the main pulley (5) and the driven pulley (6), a threaded rod (8) is fixedly connected to the right side of the main pulley (5), the other end of which is rotatably connected to the right inner wall of the base plate (1), the left side of the friction wheel (12) is fixedly connected to the right side of the driven pulley (6), and the inner wall of the slide plate (19) is threadedly connected to the outside of the threaded rod (8). The quick-release assembly (b) includes a retaining frame (20), the left side of which is fixedly connected to the right side of the slide plate (19), a retaining ring (21) is detachably connected to the inner wall of the retaining frame (20), the left side of the cutter head (22) is fixedly connected to the right side of the retaining ring (21), a rubber post (23) that engages with the retaining ring (21) is detachably connected to the top of the retaining frame (20), and a top plate (24) is fixedly connected to the top of the rubber post (23). The right side of the friction wheel (12) is in contact with the left side of the magnetic rod (16), and the outer side of the locking block (15) is slidably connected to the right side of the rotating shaft (17).

2. The safe and reliable finned tube decoupling machine according to claim 1, characterized in that: The inner wall of the right side of the base plate (1) is provided with a clamping mechanism (9). The inner wall of the clamping mechanism (9) is rotatably connected with a plurality of rollers (10) for clamping one end of the tube (2). The left side of the inner wall of the base plate (1) is fixedly connected with a support column (11) for supporting the other end of the tube (2).

3. The safe and reliable finned tube decoupling machine according to claim 1, characterized in that: Two limiting posts (29) are fixedly connected to the front and rear sides of the rotating block (25), and multiple limiting grooves (30) are provided on the inner wall of the cutter head (22) to limit the sliding range of the limiting posts (29).

4. The safe and reliable finned tube decoupling machine according to claim 1, characterized in that: The protective cover (3) is inlaid with a transparent plastic glass plate, and the left side of the main pulley (5) is rotatably connected to the left side of the inner wall of the base plate (1).

5. The safe and reliable finned tube decoupling machine according to claim 1, characterized in that: The bottom end of the slide plate (19) is slidably connected to the bottom end of the inner wall of the base plate (1), and the bottom end of the top plate (24) is in contact with the top end of the card frame (20).

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