Forming device for reinforced heat transfer type three-dimensional sheet-shaped integral outer fin copper pipe

Abstract

The utility model belongs to copper pipe processing technical field especially, and a kind of strengthening heat transfer type three-dimensional sheet whole outer fin copper pipe forming device, present and propose the following scheme, including base, the upper parallel installation of base is equipped with support, the top of support is equipped with knurl wheel, the left side fixed mounting of base is equipped with fixed side plate, the inside of fixed side plate is equipped with metal pole and is installed, the right upper of base is fixedly installed with moving side plate, the inside fixed mounting of moving side plate is equipped with collar, it is installed between the collar and moving side plate by bearing, the inner wall of collar is fixedly installed rubber;By being provided with fixed frame and outer wheel interaction to the metal pole is fixed, then the surface of metal pole is formed into dentiform by knurl wheel, then cutting is carried out to the collar that has been formed into dentiform by processing cutter, and form fin profile, along with the cutting of processing cutter, dentiform slides along rake face and is bent into discrete three-dimensional fin.

Description

Technical Field

[0001] This utility model relates to the field of copper tube processing technology, and in particular to a three-dimensional sheet-like integral outer fin copper tube forming device for enhanced heat transfer. Background Technology

[0002] Driven by both the continuous rise in global energy demand and increasingly stringent energy conservation and emission reduction policies, the high efficiency of heat transfer equipment has become the core direction for technological upgrading in the fields of energy, chemical industry, refrigeration, and HVAC. The level of heat transfer efficiency directly determines the energy consumption level, size specifications, and operating costs of the equipment. In particular, in key equipment such as air conditioners, heat pumps, and heat exchangers, the performance of copper tubes, as the core heat transfer element, plays a decisive role in the energy efficiency of the entire system.

[0003] However, most existing finned copper tube forming technologies employ non-integral forming processes such as welding and winding. This not only results in high thermal resistance between the fins and the tube body but also makes the fins prone to detachment due to insufficient bonding strength, severely affecting heat transfer stability and equipment lifespan. This phenomenon has become a problem that urgently needs to be solved by those in the field.

[0004] Therefore, a heat transfer-enhancing three-dimensional sheet-like integral external fin copper tube forming device is needed. Utility Model Content

[0005] This utility model proposes a three-dimensional sheet-like integral external fin copper tube forming device for enhanced heat transfer. It solves the problem that most existing fin copper tube forming technologies use non-integral forming processes such as welding and winding, which not only have the problem of high thermal resistance between the fins and the tube body, but also easily lead to fin detachment due to insufficient bonding strength, seriously affecting the heat transfer stability and equipment service life.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A heat transfer enhanced three-dimensional sheet-like integral external fin copper tube forming device includes a base, a support mounted parallel to the top of the base, a knurled wheel mounted on the top of the support, a fixed side plate fixedly mounted on the left side of the base, a metal rod through the interior of the fixed side plate, a movable side plate fixedly mounted on the upper right of the base, a collar fixedly mounted inside the movable side plate, the collar and the movable side plate being connected by a bearing, rubber fixedly mounted on the inner wall of the collar, and a processing cutter fixedly mounted on the top right side of the fixed side plate, the processing cutter being located at the axial centerline of the metal rod.

[0007] Preferably, a first motor is fixedly installed at the front of the base, a first lead screw is fixedly installed at the output end of the first motor, the first lead screw is fixedly installed with a support, the support is engaged with the outside of the first lead screw, and the knurled wheel is rotatably installed with the support.

[0008] Preferably, a second motor is fixedly installed inside the fixed side plate, a drive gear is fixedly installed at the output end of the second motor, an outer wheel is installed at the center of the fixed side plate, the outer wheel passes through the right side of the fixed side plate, an external gear is fixedly installed on the outer wall of the outer wheel, and the external gear meshes with the drive gear.

[0009] Preferably, the outer wheel is a hollow double-layered cylindrical structure. An inner plate is installed on the inner wall of the outer wheel. The inner plate is fitted onto the outside of the inner cylinder. A half gear is fixedly installed on the back of the inner plate. The half gear is arranged parallel to the outer wheel. A drive rod is installed on the side of the half gear. The drive rod meshes with the half gear. An array of inclined grooves is formed on the side of the inner plate that contacts the outer wheel. A first clamping block is slidably installed inside the inclined groove. The first clamping block is installed through the outer wheel.

[0010] Preferably, a fixing frame is installed at the rear of the support. The fixing frame is C-shaped, and the center of the fixing frame coincides with the center of the outer wheel. The fixing frame is fixed to the base. Helical gears are fixedly installed inside both ends of the fixing frame. A second clamping block is installed inside the helical gear. The inner wall of the helical gear is threaded and meshes with the second clamping block. A vertical driving gear is meshed on the side of the helical gear. A handle is fixedly installed on the outside of the driving gear.

[0011] Preferably, a collar is fixedly installed at the bottom of the movable side plate, the collar is sleeved on the outside of the second screw, and a third motor is fixedly installed on the right side of the second screw.

[0012] This utility model proposes a three-dimensional sheet-like integral outer fin copper tube forming device for enhanced heat transfer. Compared with the prior art, the beneficial effects of this utility model are: 1. The metal rod is fixed by the interaction of the fixed frame and the outer wheel. Then, the surface of the metal rod is formed with a knurling wheel. Then, the toothed collar is cut by a machining tool to form the fin profile. As the machining tool cuts, the toothed profile slides along the front cutting face and is bent into discrete three-dimensional fins. 2. By setting a second motor to drive the drive gear to rotate, the drive gear meshes with the external gear outside the outer wheel, so the outer wheel will also rotate synchronously inside the device, thereby driving the internal metal rod to rotate, which facilitates cutting to form fins. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a heat-enhancing three-dimensional sheet-like integral outer fin copper tube forming device proposed in this utility model. Figure 2This is a cross-sectional structural schematic diagram of a three-dimensional sheet-like integral outer fin copper tube forming device for enhanced heat transfer proposed in this utility model; Figure 3 This is a cross-sectional view of the fixed side plate of a heat-enhancing three-dimensional sheet-like integral outer fin copper tube forming device proposed in this utility model. Figure 4 This is a schematic diagram of the inner plate ladder installation structure of a heat transfer enhanced three-dimensional sheet-like integral outer fin copper tube forming device proposed in this utility model. Figure 5 This is a cross-sectional view of the fixing frame of the enhanced heat transfer type three-dimensional sheet-shaped integral outer fin copper tube forming device proposed in this utility model; Figure 6 This is a schematic diagram of the moving side plate drive structure of a heat transfer enhanced three-dimensional sheet-like integral outer fin copper tube forming device proposed in this utility model.

[0014] In the diagram: 1. Base; 2. First motor; 3. First lead screw; 4. Support; 5. Knurled wheel; 6. Fixed side plate; 7. Second motor; 8. Drive gear; 9. Outer wheel; 10. External gear; 11. Inner plate; 12. Half gear; 13. Drive rod; 14. Inclined groove; 15. First clamping block; 16. Fixed frame; 17. Helical gear; 18. Second clamping block; 19. Drive gear; 20. Handle; 21. Moving side plate; 22. Fixed inner ring; 23. Metal rod; 24. Collar; 25. Second screw; 26. Third motor; 27. Machining tool. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-6This utility model provides a technical solution: a heat transfer enhanced three-dimensional sheet-like integral outer fin copper tube forming device, including a base 1, a support 4 installed parallel above the base 1, a knurled wheel 5 installed on the top of the support 4, a fixed side plate 6 fixedly installed on the left side of the base 1, a metal rod 23 installed through the inside of the fixed side plate 6, a movable side plate 21 fixedly installed on the upper right side of the base 1, a collar 24 fixedly installed inside the movable side plate 21, the collar 24 and the movable side plate 21 are connected by a bearing, rubber is fixedly installed on the inner wall of the collar 24, and a processing knife 27 is fixedly installed on the top right side of the fixed side plate 6, the processing knife 27 is located at the axial center line of the metal rod 23, and is fixed during use by fixing... The frame 16 and the outer wheel 9 interact to fix the metal rod 23. Then, the knurling wheel 5 forms a tooth shape on the surface of the metal rod 23. Then, the machining cutter 27 cuts the already toothed collar 24 to form a fin profile. As the machining cutter 27 cuts, the tooth shape slides along the rake face and is bent into discrete three-dimensional fins. The main cutting edge of the machining cutter 27 cuts into the tooth. The material cut by the cutting edge does not become chips, but slides along the rake face and the secondary cutting edge. The stress during the forming process is concentrated in the contact area between the tooth and the tool. Knurling has an advantage over other directions due to its circumferential deformation resistance, reducing fin deformation and increasing fin height, thereby improving fin reliability and heat transfer performance.

[0017] Furthermore, a first motor 2 is fixedly installed at the front of the base 1, and a first lead screw 3 is fixedly installed at the output end of the first motor 2. The first lead screw 3 is fixedly installed with a support 4, and the support 4 is meshed with the outside of the first lead screw 3. The knurling wheel 5 is rotatably installed with the support 4. The first motor 2 drives the first lead screw 3 to rotate, and then the first lead screw 3 drives the support 4 above to move back and forth inside the device, thereby adjusting the position of the knurling wheel 5 inside the device to accommodate metal rods 23 of different sizes. The metal rod 23 rotates at high speed and comes into contact with the knurling wheel 5, and the knurling wheel 5 contacts the surface of the metal rod 23 to produce a tooth shape.

[0018] Furthermore, a second motor 7 is fixedly installed inside the fixed side plate 6, and a drive gear 8 is fixedly installed at the output end of the second motor 7. An outer wheel 9 is installed at the center of the fixed side plate 6, and the outer wheel 9 passes through the right side of the fixed side plate 6. An outer gear 10 is fixedly installed on the outer wall of the outer wheel 9. The outer gear 10 meshes with the drive gear 8. During use, the second motor 7 drives the drive gear 8 to rotate. At the same time, the drive gear 8 meshes with the outer gear 10 outside the outer wheel 9. Therefore, the outer wheel 9 will also rotate synchronously inside the device to drive the internal metal rod 23 to rotate, which facilitates cutting it to form fins.

[0019] Furthermore, the outer wheel 9 is a hollow double-layer cylindrical structure. An inner plate 11 is installed on the inner wall of the outer wheel 9. The inner plate 11 is fitted onto the outside of the inner cylinder. A half gear 12 is fixedly installed on the back of the inner plate 11. The half gear 12 is arranged parallel to the outer wheel 9. A drive rod 13 is installed on the side of the half gear 12. The drive rod 13 meshes with the half gear 12. An array of inclined grooves 14 are opened on the side of the inner plate 11 that contacts the outer wheel 9. A first clamping block 15 is slidably installed inside the inclined groove 14. The first clamping block 15 is installed through the outer wheel 9. In use, the drive rod 13 drives the half gear 12 to rotate. When the half gear 12 rotates, it will drive the first clamping block 15 inside the inclined groove 14 to move. Since the position of the first clamping block 15 is restricted by the outer wheel 9 and the inclined groove 14 has an inclined angle, the inclined angle will cancel the horizontal displacement of the first clamping block 15, so that the first clamping block 15 can move radially inside the device, which is convenient for fixing metal rods 23 of different diameters.

[0020] Furthermore, a fixing frame 16 is installed behind the support 4. The fixing frame 16 is C-shaped, and the center of the fixing frame 16 coincides with the center of the outer wheel 9. The fixing frame 16 is fixed to the base 1. Helical gears 17 are fixedly installed inside both ends of the fixing frame 16. A second clamping block 18 is installed inside the helical gear 17. The inner wall of the helical gear 17 is threaded and meshes with the second clamping block 18. A vertical driving gear 19 is meshed on the side of the helical gear 17. A handle 20 is fixedly installed on the outside of the driving gear 19. The user drives the driving gear 19 to rotate through the handle 20. Then the driving gear 19 drives the helical gear 17 to rotate. Since the helical gear 17 has threads that mesh with the second clamping block 18, the second clamping block 18 will rise and fall inside the helical gear 17, which facilitates the adjustment of the position of the second clamping block 18 inside the device, thereby fixing the metal rod 23 inside. The second clamping block 18 and the knurled wheel 5 cooperate with each other to position the metal rod 23.

[0021] Furthermore, a collar 24 is fixedly installed at the bottom of the movable side plate 21. The collar 24 is sleeved on the outside of the second screw 25. A third motor 26 is fixedly installed on the right side of the second screw 25. In use, the third motor 26 drives the movable side plate 21 to move. The metal rod 23 is fixed inside the fixed inner ring 22. The fixed inner ring 22 has a large area of ​​rubber ring inside, which can fix the metal rod 23. Since the fixed inner ring 22 is connected to the movable side plate 21 through a bearing, the fixed inner ring 22 will not affect the rotation of the metal rod 23. Then, the metal rod 23 is moved to the right by the movement of the movable side plate 21 for continuous processing.

[0022] Working principle: The drive rod 13 drives the half gear 12 to rotate. When the half gear 12 rotates, it will cause the first clamping block 15 inside the inclined groove 14 to move. Since the first clamping block 15 is restricted in position by the outer wheel 9 and the inclined groove 14 has an inclined angle, the inclined angle will cancel the horizontal displacement of the first clamping block 15, so that the first clamping block 15 moves radially inside the device, which is convenient for fixing metal rods 23 of different diameters. Then, the handle 20 drives the drive gear 19 to rotate, and the drive gear 19 drives the helical gear 17 to rotate. Since the helical gear 17 has a thread that meshes with the second clamping block 18, the second clamping block 18 will rise and fall inside the helical gear 17, which is convenient for adjusting the position of the second clamping block 18 inside the device, thereby fixing the metal rod 23 inside. The second clamping block 18 and the knurled wheel 5 cooperate to position the metal rod 23. Then the second motor 7 drives... The drive gear 8 rotates, and simultaneously meshes with the external gear 10 outside the outer wheel 9. Therefore, the outer wheel 9 also rotates synchronously inside the device, driving the internal metal rod 23 to rotate. The metal rod 23 rotates at high speed and comes into contact with the knurling wheel 5. The knurling wheel 5 creates teeth on the surface of the metal rod 23. Then, the machining cutter 27 cuts the already formed toothed collar 24 to form the fin profile. As the machining cutter 27 cuts, the teeth slide along the rake face and are bent into discrete three-dimensional fins. The main cutting edge of the machining cutter 27 cuts into the teeth. The material cut by the cutting edge does not become chips, but slides along the rake face and the secondary cutting edge. The stress during the forming process is concentrated in the contact area between the teeth and the cutting tool. Furthermore, knurling has an advantage over other directions due to its circumferential deformation resistance, reducing fin deformation and increasing fin height, thereby improving fin reliability and heat transfer performance.

[0023] 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 heat transfer enhanced three-dimensional sheet-like integral outer fin copper tube forming device, comprising a base (1), characterized in that: A support (4) is installed parallel above the base (1). A knurled wheel (5) is installed on the top of the support (4). A fixed side plate (6) is fixedly installed on the left side of the base (1). A metal rod (23) is installed through the inside of the fixed side plate (6). A movable side plate (21) is fixedly installed on the upper right side of the base (1). A collar (24) is fixedly installed inside the movable side plate (21). The collar (24) and the movable side plate (21) are connected by a bearing. Rubber is fixedly installed on the inner wall of the collar (24). A machining tool (27) is fixedly installed on the top right side of the fixed side plate (6). The machining tool (27) is located at the axial center line of the metal rod (23).

2. The enhanced heat transfer type three-dimensional sheet-like integral outer fin copper tube forming device according to claim 1, characterized in that: A first motor (2) is fixedly installed in front of the base (1), and a first lead screw (3) is fixedly installed at the output end of the first motor (2). The first lead screw (3) is fixedly installed with a support (4), and the support (4) is meshed with the outside of the first lead screw (3). The knurled wheel (5) is rotatably installed with the support (4).

3. The enhanced heat transfer type three-dimensional sheet-like integral outer fin copper tube forming device according to claim 1, characterized in that: A second motor (7) is fixedly installed inside the fixed side plate (6). A drive gear (8) is fixedly installed at the output end of the second motor (7). An outer wheel (9) is installed at the center of the fixed side plate (6). The outer wheel (9) passes through the right side of the fixed side plate (6). An outer gear (10) is fixedly installed on the outer wall of the outer wheel (9). The outer gear (10) meshes with the drive gear (8).

4. The enhanced heat transfer type three-dimensional sheet-like integral outer fin copper tube forming device according to claim 3, characterized in that: The outer wheel (9) is a hollow double-layer cylindrical structure. An inner plate (11) is installed on the inner wall of the outer wheel (9). The inner plate (11) is fitted on the outside of the inner cylinder. A half gear (12) is fixedly installed on the back of the inner plate (11). The half gear (12) is arranged parallel to the outer wheel (9). A drive rod (13) is installed on the side of the half gear (12). The drive rod (13) meshes with the half gear (12). An array of inclined grooves (14) is opened on the side of the inner plate (11) that contacts the outer wheel (9). A first clamping block (15) is slidably installed inside the inclined groove (14). The first clamping block (15) is installed through the outer wheel (9).

5. The enhanced heat transfer type three-dimensional sheet-like integral outer fin copper tube forming device according to claim 1, characterized in that: A fixing frame (16) is installed behind the support (4). The fixing frame (16) is C-shaped. The center of the fixing frame (16) coincides with the center of the outer wheel (9). The fixing frame (16) is fixed to the base (1). Helical gears (17) are fixedly installed inside both ends of the fixing frame (16). A second clamping block (18) is installed inside the helical gear (17). The inner wall of the helical gear (17) is threaded and meshes with the second clamping block (18). A vertical driving gear (19) is meshed on the side of the helical gear (17). A handle (20) is fixedly installed on the outside of the driving gear (19).

6. The enhanced heat transfer type three-dimensional sheet-like integral outer fin copper tube forming device according to claim 1, characterized in that: A collar (24) is fixedly installed at the bottom of the movable side plate (21). The collar (24) is sleeved on the outside of the second screw (25). A third motor (26) is fixedly installed on the right side of the second screw (25).

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