A metal plate coiling pipe-making device with variable diameter

Abstract

The present invention belongs to the field of metal plate rolling, and specifically discloses a device for manufacturing pipes by winding metal plates with variable diameters, which includes an automatic feeding mechanism, a two-stage adaptive pressing mechanism, an automatic feeding and discharging mechanism, and an extrusion and rolling plate mechanism. The automatic feeding mechanism includes a bottom plate, a feeding component, and a blanking chute. The blanking chute is arranged on the bottom plate, and the feeding component is arranged on the bottom plate. Through the two-stage adaptive pressing mechanism of the present invention, the lifting of the first slider and the second slider can be controlled. By using a single driving source, namely the driving motor, it can not only drive the lateral movement of the blanking fork and the lifting of the first slider in sequence, but also drive the rotation of the rubber feeding wheel through the automatic engagement of the lifting gear and the driving idler after the first slider descends to a specified position, thereby completing the automatic feeding of the metal sheet.

Description

Technical Field

[0001] The present invention belongs to the technical field of metal plate rolling, and specifically refers to a metal plate winding and pipe making device with variable diameter. Background Art

[0002] Many metal pipes are made by winding metal plates, and finally the side seams are connected by welding. Among them, small short pipe rolling machines are a relatively commonly used production equipment; this equipment can wind square metal thin plates around a stick and use the stick as a mold to complete pipe making.

[0003] Although such production lines and production processes are relatively mature, the production lines are often composed of multiple independent devices connected together, occupying a large area; a series of actions such as loading, lowering, rolling, and unloading all require independent modules for driving and motion guidance, and the overall structure is relatively complex, and the cost is relatively high when mass-producing as a standard model.

[0004] In order to solve the cost problem during mass production, the present invention deeply analyzes its motion mechanism and structure, and proposes a metal plate winding and pipe making device with variable diameter based on automatic linkage control. Summary of the Invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention proposes a metal plate winding and pipe making device with variable diameter; through the automatic feeding and discharging mechanism, the lateral sliding of the discharging fork can be controlled, so as to remove the wound metal pipe, and it can also move vertically downward by itself, so that the originally separated roller body and the shaping roller are close to each other, thereby creating conditions for extruding the metal plate and deforming it; the position sensing contact, the shaping roller and the feeding platform form three points that are in contact with the metal plate at the same time, and through the rigid limit of these three contact points, the metal plate can be extruded and bent.

[0006] Moreover, through the two-stage adaptive pressing mechanism, the lifting of the first slider and the second slider can be controlled. Through a single driving source of the driving motor, not only can the lateral movement of the discharging fork and the lifting of the first slider be driven in sequence, but also after the first slider descends to a specified position, the rubber feeding wheel can be driven to rotate through the automatic engagement of the lifting gear and the transmission idler wheel, thereby completing the automatic feeding of the metal plate.

[0007] The technical solution adopted by the present invention is as follows: The present invention proposes a metal plate winding and pipe making device with variable diameter, including an automatic feeding mechanism, a two-stage adaptive pressing mechanism, an automatic feeding and discharging mechanism, and an extrusion and rolling mechanism. The automatic feeding mechanism includes a bottom plate, a feeding component, and a blanking chute. The blanking chute is arranged on the bottom plate, and the feeding component is arranged on the bottom plate.

[0008] As a further preference of the present invention, the feeding assembly includes a feeding bin, a feeding platform, a metal sheet, and a feeding spring. The feeding bin is provided on the bottom plate. Three sides of the top of the feeding bin are provided with baffles. The feeding platform is fixedly connected to the feeding bin. The metal sheets are arranged in an array in the feeding bin. The metal sheets can slide vertically in the feeding bin. The feeding spring is arranged between the bottom of the feeding bin and the metal sheets.

[0009] Through the feeding spring, the metal sheets can be continuously pushed upwards, so that the rubber feeding wheel can squeeze with the uppermost metal sheet. Then, when the rubber feeding wheel rotates, it can push the uppermost metal sheet towards the roller body to slide, thereby completing the feeding.

[0010] Furthermore, the two-stage adaptive pressing mechanism includes a lifting base, two-stage lifting components, an adaptive descending control component, and a lifting driving component. The lifting base is provided on the bottom plate. Above the lifting base is provided a lifting substrate. The lifting substrate is provided with a slot for avoiding position. The two-stage lifting components are provided on the lifting base. The adaptive descending control component is provided on the two-stage lifting components. The lifting driving component is provided on the two-stage lifting components.

[0011] The two independent transverse and longitudinal movement mechanisms in the two-stage adaptive pressing mechanism can, under the action of the linkage mechanism, achieve serialized linkage control through the same driving mechanism, so that the transverse movement and longitudinal movement of the material discharging fork can adapt to each other, and the technical effect of adaptive sequential control can be achieved without any electronic control module.

[0012] Preferably, the two-stage lifting components include a lifting guide rail, a first slider, a second slider, a first spring, and a second spring. The lifting guide rail is fixedly connected to the lifting substrate. The first slider and the second slider are both engaged and slidably arranged on the lifting guide rail. The first slider is located above the second slider. The first slider is provided with a plate-shaped convex part. The first spring is arranged between the first slider and the second slider. The second spring is arranged between the second slider and the lifting base.

[0013] Under the elastic force of the first spring and the second spring, the first slider and the second slider have a tendency to rise and reset and separate from each other. Therefore, in the stage of discharging the material, through the drive of the drive motor, the first slider and the second slider will first slide upwards to the specified position, and then start to drive the material discharging fork to move transversely to discharge the material.

[0014] As a further preference of the present invention, the adaptive descent control component includes a U-shaped elastic sheet, a friction shoe, a planetary reducer, a lifting gear, and a lifting rack. The planetary reducer is provided with a sun gear shaft, an external gear ring, and a planetary carrier output shaft. The planetary carrier output shaft is rotatably arranged in the first slider. The U-shaped elastic sheet is arranged between the plate-shaped boss portion and the friction shoe. The friction shoe is in sliding contact with the outer wall of the external gear ring. A friction coating is sprayed on the contact portion between the external gear ring and the friction shoe. The lifting gear is fixedly connected to the external gear ring. The lifting rack is fixedly connected to the lifting substrate. The lifting gear and the lifting rack are meshed and driven. A rack ramp portion is provided at the lower part of the lifting rack. When the lifting gear moves to the rack ramp portion, the meshing relationship between itself and the lifting rack will be temporarily released.

[0015] Since the frictional force of the friction shoe on the outer wall of the external gear ring is greater than the rotational resistance of the planetary carrier output shaft, when the driving motor drives the sun gear shaft to rotate, the planetary carrier output shaft will rotate first. When the resistance of the planetary carrier output shaft is too large and it cannot rotate, the external gear ring will overcome the frictional force between itself and the friction shoe and rotate. When the external gear ring rotates, it can drive the first slider and the second slider to descend through the mutual matching of the lifting gear and the lifting rack.

[0016] Preferably, the lifting drive component includes a motor mounting plate, a driving motor, and a coupling. The motor mounting plate is fixedly connected to the side of the first slider. The driving motor is fixedly connected to the motor mounting plate. The output shaft of the driving motor and the sun gear shaft are connected through a coupling.

[0017] Furthermore, the automatic feeding and discharging mechanism includes a front-end lifting component, a transverse movement transmission component, and a feeding component. The front-end lifting component is arranged on the lifting substrate. The transverse movement transmission component is arranged on the front-end lifting component. The feeding component is arranged on the feeding component.

[0018] Through the longitudinal movement of the automatic feeding and discharging mechanism, the second slider and the shaping roller can be pressed down by the descent of the first slider, so as to achieve the purpose of rolling the plate. Through the transverse movement of the automatic feeding and discharging mechanism, the metal pipe sleeved on the shaping roller can be discharged.

[0019] Preferably, the front-end lifting component includes a T-shaped guide rail, a front-end slider, a U-shaped bracket, a lower pressing plate, and a lower pressing roller. The T-shaped guide rail is fixedly connected to the lifting substrate. A limit stop block is arranged at the top of the T-shaped guide rail. The front-end slider is snap-fitted and slidably arranged on the T-shaped guide rail. The U-shaped bracket is fixedly connected to the front-end slider. The lower pressing plates are symmetrically arranged at both ends of the U-shaped bracket. A fork portion is provided at the bottom of the lower pressing plate. The lower pressing roller is rotatably arranged on the fork portion.

[0020] By lowering the U-shaped bracket, the sizing roller can be rigidly extruded by the pressing roller, forcing the sizing roller to descend. The sizing roller after descending can rotate following the rotation of the drum body. At this time, the pressing roller can also rotate to adapt following the sizing roller. When discharging, first, the pressing roller needs to be separated from the sizing roller under the elastic force of the first spring, and then the metal tube sleeved on the sizing roller is toggled and separated by the lateral sliding of the discharge fork.

[0021] As a further preference of the present invention, the transverse movement transmission assembly includes a transverse movement guide rail, a transverse movement slider, a transmission lead screw, and a discharge fork. The transverse movement guide rail is fixedly connected to the lower pressing plate. The transverse movement slider is engaged and slidably arranged on the transverse movement guide rail. The transmission lead screw is rotatably arranged in the U-shaped bracket and the lower pressing plate. One end of the transmission lead screw is connected to the output shaft of the planet carrier. The discharge fork is fixedly connected to the lower part of the transverse movement slider.

[0022] Preferably, the feeding assembly includes an idler wheel bracket, a driving idler wheel, a feeding shaft bracket, and a feeding wheel shaft. The idler wheel bracket is fixedly connected to the lifting base. A position sensing contact is provided on the idler wheel bracket. The driving idler wheel is rotatably arranged on the idler wheel bracket. When the lifting gear descends to the rack ramp portion, the lifting gear can contact and mesh with the driving idler wheel. A position sensing ring is provided on the driving idler wheel. Induction points corresponding to the position sensing contacts are provided on the position sensing ring. The feeding shaft bracket is arranged on the feeding platform. The feeding wheel shaft is rotatably arranged in the feeding shaft bracket. A rubber feeding wheel is provided at the middle position of the feeding wheel shaft. The rubber feeding wheel is in rolling contact with the topmost metal sheet. A driving gear is provided at one end of the feeding wheel shaft. The driving gear is in meshing transmission with the driving idler wheel.

[0023] When the lifting gear descends to the lowest position, on the one hand, the lifting gear will separate from the lifting rack and stop descending. At this time, whether the driving motor continues to rotate or remains stationary, the first slider can maintain its current position. On the other hand, at this time, the lifting gear will be combined with the driving idler wheel. Through the transmission of the driving idler wheel and the feeding wheel shaft, the rubber feeding wheel can be driven to rotate, thus completing the feeding.

[0024] After the driving idler wheel rotates, the number of rotations of the driving idler wheel can be sensed and controlled through the position sensing ring and the induction points, which can not only ensure that the advancement amount of the metal sheet is sufficient so that the metal sheet can contact the middle of the drum body and the sizing roller, but also avoid the situation that the second layer of metal sheet is pushed.

[0025] Furthermore, the extrusion and rolling mechanism includes a driving rolling assembly, a shaping roller and a metal tube. The shaping roller is rotatably arranged in the second slider, and the metal tube is wrapped around the outside of the shaping roller. The metal tube is formed by winding a metal sheet. The metal tube can be separated from the shaping roller by sliding a material withdrawal fork. The driving rolling assembly is arranged on the bottom plate.

[0026] Preferably, the driving rolling assembly includes a roller motor, a roller bracket, a roller body and a gear transmission device, the roller motor is arranged on the bottom plate, the roller bracket is arranged on the bottom plate, the roller body is rotatably arranged on the roller bracket, the roller motor and the roller body are transmitted through the gear transmission device, and the outside of the roller body is sprayed with an anti-slip coating.

[0027] Through the continuous rotation of the roller body, on the one hand, it can rotate with the shaping roller and extrude the straight metal sheet through the positional relationship between the shaping roller and the roller body; on the other hand, it can also pull the metal sheet that has contacted the roller body and make it roll into a metal tube along the shaping roller.

[0028] The beneficial effects achieved by the present invention using the above structure are as follows:

[0029] (1) The metal sheet can be continuously pushed upward by the feeding spring, so that the rubber feeding wheel and the top metal sheet can be squeezed against each other, and then when the rubber feeding wheel rotates, it can push the top metal sheet to slide toward the roller body, thereby completing the feeding.

[0030] (2) The two independent lateral and longitudinal movement mechanisms in the two-stage adaptive downward pressure mechanism can realize serial linkage control through the same driving mechanism under the action of the linkage mechanism, so that the lateral movement and longitudinal movement of the material return fork can adapt to each other, and realize the technical effect of adaptive sequential control without going through any electronic control module.

[0031] (3) Under the elastic force of the first spring and the second spring, the first slider and the second slider have a tendency to rise and reset and separate from each other. Therefore, in the stage of material withdrawal, the first slider and the second slider will first slide upward to the specified position through the drive of the driving motor, and then start to drive the material withdrawal fork to move horizontally to withdraw the material.

[0032] (4) Since the friction force of the friction shoe on the outer wall of the outer gear ring is greater than the rotational resistance of the planetary carrier output shaft, when the drive motor rotates with the sun gear shaft, the planetary carrier output shaft will rotate first. When the resistance of the planetary carrier output shaft is too large and cannot rotate, the outer gear ring will overcome the friction between itself and the friction shoe and rotate. When the outer gear ring rotates, it can drive the first slider and the second slider to descend through the mutual matching of the lifting gear and the lifting rack.

[0033] (5) Through the longitudinal movement of the automatic feeding and discharging mechanism, the second slider and the shaping roller can be pressed down by the lowering of the first slider, so as to achieve the purpose of coiling the plate. By the lateral movement of the automatic feeding and discharging mechanism, the metal tube sleeved on the shaping roller can be discharged.

[0034] (6) By the lowering of the U-shaped bracket, the shaping roller can be rigidly extruded by the pressing roller, forcing the shaping roller to descend. The descending shaping roller can rotate following the rotation of the roller body. At this time, the pressing roller can also rotate to adapt following the shaping roller; during discharging, first, the pressing roller needs to be separated from the shaping roller under the elastic force of the first spring, and then the metal tube sleeved on the shaping roller can be toggled and separated by the lateral sliding of the discharging fork.

[0035] (7) When the lifting gear descends to the lowest position, on the one hand, the lifting gear will be separated from the lifting rack and stop descending. At this time, whether the driving motor continues to rotate or remains stationary, the first slider can maintain its current position; on the other hand, at this time, the lifting gear will be engaged with the transmission idler gear. Through the transmission of the transmission idler gear and the feeding wheel shaft, the rubber feeding wheel can be driven to rotate, thus completing the feeding.

[0036] (8) After the transmission idler gear rotates, the number of rotations of the transmission idler gear can be sensed and controlled through the position sensing ring and the sensing point. It can not only ensure that the feeding amount of the metal plate is sufficient so that the metal plate can contact the middle of the roller body and the shaping roller, but also avoid the situation that the second layer of metal plate is pushed.

[0037] (9) Through the continuous rotation of the roller body, on the one hand, it can drive the shaping roller to rotate together, and extrude the flat metal plate through the positional relationship between the shaping roller and the roller body. On the other hand, it can also pull the metal plate that has contacted the roller body, so that it is wound around the shaping roller into a metal tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is a perspective view of a metal plate coiling and tube making device with variable diameter proposed by the present invention;

[0039] Figure 2 is a front view of a metal plate coiling and tube making device with variable diameter proposed by the present invention;

[0040] Figure 3 is a left view of a metal plate coiling and tube making device with variable diameter proposed by the present invention;

[0041] Figure 4 is a top view of a metal plate coiling and tube making device with variable diameter proposed by the present invention;

[0042] Figure 5 is Figure 3 a sectional view along cutting plane line A-A in

[0043] Figure 6 is Figure 2 a sectional view along cutting plane line B-B in

[0044] Figure 7 is Figure 2 a sectional view along cutting plane line C-C in

[0045] Figure 8 is an exploded view of a metal plate coiling pipe-making device with variable diameter proposed by the present invention;

[0046] Figure 9 is Figure 5 a partial enlarged view at position I in

[0047] Figure 10 is Figure 1 a partial enlarged view at position II in

[0048] Figure 11 is Figure 6 a partial enlarged view at position III in

[0049] Figure 12 is Figure 8 a partial enlarged view at position IV in

[0050] Figure 13 is Figure 7 a partial enlarged view at position V in

[0051] Among them, 1. Automatic feeding mechanism, 2. Two-stage adaptive pressing-down mechanism, 3. Automatic feeding and discharging mechanism, 4. Extrusion and coiling mechanism, 5. Bottom plate, 6. Feeding assembly, 7. Feeding cabin, 8. Feeding platform, 9. Metal sheet, 10. Feeding spring, 11. Baffle, 12. Lifting base, 13. Two-stage lifting assembly, 14. Adaptive downward control assembly, 15. Lifting drive assembly, 16. Lifting base plate, 17. Lifting guide rail, 18. First slider, 19. Second slider, 20. First spring, 21. Second spring, 22. U-shaped elastic piece, 23. Friction shoe, 24. Planetary reducer, 25. Lifting gear, 26. Lifting rack, 27. Motor mounting plate, 28. Driving motor, 29. Coupling, 30. Plate-shaped convex part, 31. Sun gear shaft, 32. Outer gear ring, 33. Planet carrier output shaft, 34. Rack ramp part, 35. Front-end lifting assembly, 36. Cross-movement transmission assembly, 37. Feeding assembly, 38. T-shaped guide rail, 39. Front-end slider, 40. U-shaped bracket, 41. Lower pressing plate, 42. Lower pressing roller, 43. Cross-movement guide rail, 44. Cross-movement slider, 45. Transmission lead screw, 46. Idler bracket, 47. Transmission idler, 48. Feeding shaft bracket, 49. Feeding wheel shaft, 50. Limit stop block, 51. Fork-shaped part, 52. Position sensing contact, 53. Position sensing ring, 54. Sensing point, 55. Rubber feeding wheel, 56. Transmission gear, 57. Driving and rolling assembly, 58. Shaping roller, 59. Metal pipe, 60. Roller motor, 61. Roller bracket, 62. Roller body, 63. Discharging chute, 64. Gear transmission device, 65. Discharging fork.

[0052] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. Detailed implementation manners

[0053] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0054] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0055] like Figures 1 to 13 As shown, the present invention proposes a variable diameter metal plate winding pipe making device, including an automatic feeding mechanism 1, a two-stage adaptive pressing mechanism 2, an automatic feeding and retracting mechanism 3 and an extrusion and rolling mechanism 4, the automatic feeding mechanism 1 includes a bottom plate 5, a feeding assembly 6 and a discharge chute 63, the discharge chute 63 is arranged on the bottom plate 5, and the feeding assembly 6 is arranged on the bottom plate 5.

[0056] The feeding assembly 6 includes a feeding cabin 7, a feeding platform 8, a metal plate 9 and a feeding spring 10. The feeding cabin 7 is arranged on the bottom plate 5. Baffles 11 are provided on the three top sides of the feeding cabin 7. The feeding platform 8 is fixed to the feeding cabin 7. The metal plate 9 is arranged in an array in the feeding cabin 7. The metal plate 9 can slide vertically in the feeding cabin 7. The feeding spring 10 is arranged between the bottom of the feeding cabin 7 and the metal plate 9.

[0057] The metal sheet 9 can be continuously pushed upward by the feeding spring 10, so that the rubber feeding wheel 55 and the top metal sheet 9 can be squeezed against each other, and then when the rubber feeding wheel 55 rotates, it can push the top metal sheet 9 to slide toward the roller body 62, thereby completing the feeding.

[0058] The extrusion rolling mechanism 4 includes a driving rolling assembly 57, a shaping roller 58 and a metal tube 59. The shaping roller 58 is rotatably arranged in the second slider 19. The metal tube 59 is wrapped around the outside of the shaping roller 58. The metal tube 59 is wound by a metal sheet 9. The metal tube 59 can be separated from the shaping roller 58 by sliding the material withdrawal fork 65. The driving rolling assembly 57 is arranged on the bottom plate 5.

[0059] The driving rolling assembly 57 includes a roller motor 60, a roller bracket 61, a roller body 62 and a gear transmission device 64. The roller motor 60 is arranged on the base plate 5, the roller bracket 61 is arranged on the base plate 5, the roller body 62 is rotatably arranged on the roller bracket 61, the roller motor 60 and the roller body 62 are transmitted through the gear transmission device 64, and the outside of the roller body 62 is sprayed with an anti-slip coating.

[0060] Through the continuous rotation of the roller body 62, on the one hand, it can rotate with the shaping roller 58 and squeeze the straight metal sheet 9 through the positional relationship between the shaping roller 58 and the roller body 62. On the other hand, it can also pull the metal sheet 9 that has contacted the roller body 62 so that it can be wound into a metal tube 59 along the shaping roller 58.

[0061] The two - stage adaptive downward pressing mechanism 2 includes a lifting base 12, a two - stage lifting assembly 13, an adaptive descending control assembly 14, and a lifting drive assembly 15. The lifting base 12 is arranged on the bottom plate 5. Above the lifting base 12, there is a lifting substrate 16. The lifting substrate 16 is provided with a slot for avoiding positions. The two - stage lifting assembly 13 is arranged on the lifting base 12, the adaptive descending control assembly 14 is arranged on the two - stage lifting assembly 13, and the lifting drive assembly 15 is arranged on the two - stage lifting assembly 13.

[0062] The two mutually independent transverse and longitudinal movement mechanisms in the two - stage adaptive downward pressing mechanism 2 can, under the action of the linkage mechanism, achieve serialized linkage control through the same drive mechanism, enabling the transverse movement and longitudinal movement of the unloading fork 65 to adapt to each other, and achieving the technical effect of adaptive sequential control without passing through any electronic control modules.

[0063] The two - stage lifting assembly 13 includes a lifting guide rail 17, a first slider 18, a second slider 19, a first spring 20, and a second spring 21. The lifting guide rail 17 is fixedly connected to the lifting substrate 16. Both the first slider 18 and the second slider 19 are snap - fitted and slidably arranged on the lifting guide rail 17. The first slider 18 is located above the second slider 19. The first slider 18 is provided with a plate - shaped boss portion 30. The first spring 20 is arranged between the first slider 18 and the second slider 19, and the second spring 21 is arranged between the second slider 19 and the lifting base 12.

[0064] Under the elastic force of the first spring 20 and the second spring 21, the first slider 18 and the second slider 19 have a tendency to rise and reset and separate from each other. Therefore, during the unloading stage, driven by the drive motor 28, the first slider 18 and the second slider 19 will first slide upward to a specified position before starting to drive the unloading fork 65 to move transversely for unloading.

[0065] The adaptive descending control assembly 14 includes a U - shaped elastic sheet 22, a friction shoe 23, a planetary reducer 24, a lifting gear 25, and a lifting rack 26. The planetary reducer 24 is provided with a sun gear shaft 31, an outer gear ring 32, and a planetary carrier output shaft 33. The planetary carrier output shaft 33 is rotatably arranged in the first slider 18. The U - shaped elastic sheet 22 is arranged between the plate - shaped boss portion 30 and the friction shoe 23. The friction shoe 23 is in sliding contact with the outer wall of the outer gear ring 32. The contact part between the outer gear ring 32 and the friction shoe 23 is sprayed with a friction coating. The lifting gear 25 is fixedly connected to the outer gear ring 32, and the lifting rack 26 is fixedly connected to the lifting substrate 16. The lifting gear 25 and the lifting rack 26 are in meshing transmission. The lower part of the lifting rack 26 is provided with a rack ramp portion 34. When the lifting gear 25 moves to the rack ramp portion 34, the meshing relationship between itself and the lifting rack 26 will be temporarily released.

[0066] Since the frictional force of the friction shoe 23 on the outer wall of the external gear ring 32 is greater than the rotational resistance of the planet carrier output shaft 33, when the driving motor 28 drives the sun gear shaft 31 to rotate, the planet carrier output shaft 33 will rotate first. When the resistance of the planet carrier output shaft 33 is too large and it cannot rotate, the external gear ring 32 will overcome the frictional force between itself and the friction shoe 23 and rotate. When the external gear ring 32 rotates, it can drive the first slider 18 and the second slider 19 to descend through the mutual matching of the lifting gear 25 and the lifting rack 26;

[0067] The lifting drive assembly 15 includes a motor mounting plate 27, a driving motor 28, and a coupling 29. The motor mounting plate 27 is fixedly connected to the side of the first slider 18. The driving motor 28 is fixedly connected to the motor mounting plate 27. The output shaft of the driving motor 28 and the sun gear shaft 31 are connected through the coupling 29.

[0068] The automatic feeding and discharging mechanism 3 includes a front-end lifting assembly 35, a transverse movement transmission assembly 36, and a feeding assembly 37. The front-end lifting assembly 35 is arranged on the lifting base plate 16. The transverse movement transmission assembly 36 is arranged on the front-end lifting assembly 35. The feeding assembly 37 is arranged on the feeding assembly 6.

[0069] Through the longitudinal movement of the automatic feeding and discharging mechanism 3, the second slider 19 and the shaping roller 58 can be pressed down by the descent of the first slider 18, so as to achieve the purpose of rolling the plate. Through the transverse movement of the automatic feeding and discharging mechanism 3, the metal pipe 59 sleeved on the shaping roller 58 can be discharged.

[0070] The front-end lifting assembly 35 includes a T-shaped guide rail 38, a front-end slider 39, a U-shaped bracket 40, a lower pressing plate 41, and a lower pressing roller 42. The T-shaped guide rail 38 is fixedly connected to the lifting base plate 16. A limit stop block 50 is arranged at the top of the T-shaped guide rail 38. The front-end slider 39 is engaged and slidably arranged on the T-shaped guide rail 38. The U-shaped bracket 40 is fixedly connected to the front-end slider 39. The lower pressing plates 41 are symmetrically arranged at both ends of the U-shaped bracket 40. A fork portion 51 is arranged at the bottom of the lower pressing plate 41. The lower pressing roller 42 is rotatably arranged on the fork portion 51.

[0071] Through the descent of the U-shaped bracket 40, the shaping roller 58 can be rigidly extruded by the lower pressing roller 42, forcing the shaping roller 58 to descend. The descended shaping roller 58 can rotate following the rotation of the drum body 62. At this time, the lower pressing roller 42 can also rotate to adapt following the shaping roller 58; during discharging, first, the lower pressing roller 42 needs to be separated from the shaping roller 58 under the elastic force of the first spring 20, and then the metal pipe 59 sleeved on the shaping roller 58 is dialed and separated through the transverse sliding of the discharging fork 65.

[0072] The transverse movement transmission assembly 36 includes a transverse movement guide rail 43, a transverse movement slider 44, a transmission lead screw 45 and a blanking fork 65. The transverse movement guide rail 43 is fixedly connected to the lower pressing plate 41. The transverse movement slider 44 is engaged and slidably arranged on the transverse movement guide rail 43. The transmission lead screw 45 is rotatably arranged in the U-shaped bracket 40 and the lower pressing plate 41. One end of the transmission lead screw 45 is connected to the planetary carrier output shaft 33. The blanking fork 65 is fixedly connected below the transverse movement slider 44.

[0073] The feeding assembly 37 includes an idle wheel bracket 46, a transmission idle wheel 47, a feeding shaft bracket 48 and a feeding wheel shaft 49. The idle wheel bracket 46 is fixedly connected to the lifting base 12. A position sensing contact 52 is provided on the idle wheel bracket 46. The transmission idle wheel 47 is rotatably arranged on the idle wheel bracket 46. When the lifting gear 25 descends to the rack ramp portion 34, the lifting gear 25 can contact and engage with the transmission idle wheel 47. A position sensing ring 53 is provided on the transmission idle wheel 47. An induction point 54 corresponding to the position sensing contact 52 is provided on the position sensing ring 53. The feeding shaft bracket 48 is arranged on the feeding platform 8. The feeding wheel shaft 49 is rotatably arranged in the feeding shaft bracket 48. A rubber feeding wheel 55 is provided at the middle position of the feeding wheel shaft 49. The rubber feeding wheel 55 is in rolling contact with the uppermost metal sheet 9. A transmission gear 56 is provided at one end of the feeding wheel shaft 49. The transmission gear 56 is in meshing transmission with the transmission idle wheel 47.

[0074] When the lifting gear 25 descends to the lowest position, on the one hand, the lifting gear 25 will separate from the lifting rack 26 and stop descending. At this time, whether the driving motor 28 continues to rotate or remains stationary, the first slider 18 can maintain its current position. On the other hand, at this time, the lifting gear 25 will engage with the transmission idle wheel 47. Through the transmission of the transmission idle wheel 47 and the feeding wheel shaft 49, the rubber feeding wheel 55 can be driven to rotate, thereby completing the feeding.

[0075] After the transmission idle wheel 47 rotates, the rotation number of the transmission idle wheel 47 can be sensed and controlled through the position sensing ring 53 and the induction point 54, which can not only ensure that the advancement amount of the metal sheet 9 is sufficient so that the metal sheet 9 can contact the middle of the drum body 62 and the shaping roller 58, but also avoid the situation that the second-layer metal sheet 9 is pushed.

[0076] The resistance of the transverse slider 44 sliding on the transverse guide rail 43 is less than the frictional resistance of the friction shoe 23 against the external gear ring 32, and the frictional resistance of the friction shoe 23 against the external gear ring 32 is less than the elastic forces of the first spring 20 and the second spring 21. Therefore, when the driving motor 28 rotates, the transverse slider 44 will first slide to the limit position close to the lifting base plate 16. When the transverse slider 44 cannot slide, the external gear ring 32 and the friction shoe 23 will rotate relative to each other; and in the reverse reset stage, because the frictional resistance of the friction shoe 23 against the external gear ring 32 is less than the elastic forces of the first spring 20 and the second spring 21, so when the elastic forces of the first spring 20 and the second spring 21 are dominant, the rotation of the driving motor 28 will allow the first spring 20 and the second spring 21 to elongate; therefore, the first slider 18 will first reset to the top, and then the transverse slider 44 will slide horizontally.

[0077] The gear transmission mechanism used in this solution only represents the path of power transmission. In actual use, other suitable transmission forms such as belt transmission and roller transmission can also be selected according to needs.

[0078] The installation of the shaping roller 58 must be of a cantilever structure. Therefore, in order to provide sufficient pressing force, two lower pressing plates 41 and lower pressing rollers 42 for downward pressing are provided above the shaping roller 58; according to the strength and thickness of the metal sheet 9, if the strength provided by the unilateral T-shaped guide rail 38 and the front slider 39 is insufficient, then it can also be installed in other structural forms, as long as the U-shaped bracket 40 can achieve the same lifting movement as in this embodiment.

[0079] In specific use, first, the user needs to press multiple metal sheets 9 into the feeding bin 7. Under the elastic force of the feeding spring 10, the topmost metal sheet 9 will contact and squeeze with the rubber feeding wheel 55. Since there are baffles 11 on three sides above the feeding platform 8, the metal sheet 9 can only slide towards the notch of the baffle 11, that is, towards the direction close to the drum body 62 when the rubber feeding wheel 55 rotates.

[0080] First, drive the drive motor 28. The rotation of the drive motor 28 drives the sun gear shaft 31 to rotate. At this time, due to the frictional resistance between the friction shoe 23 and the external gear ring 32, and the resistance of the transverse slider 44 sliding on the transverse guide rail 43 is less than the frictional resistance of the friction shoe 23 against the external gear ring 32, the external gear ring 32 will remain stationary. At this time, the planetary carrier output shaft 33 drives the transmission lead screw 45 to rotate together. When the transmission lead screw 45 rotates, it will cause the transverse slider 44 to slide along the transverse guide rail 43 towards the direction close to the lifting substrate 16. When the lifting substrate 16 slides to the limit position closest to the lifting substrate 16, the planetary carrier output shaft 33 can no longer rotate. At this time, the external gear ring 32 will overcome the frictional force of the friction shoe 23 and rotate. Since the lifting rack 26 and the lifting gear 25 are engaged, when the external gear ring 32 drives the lifting gear 25 to rotate, the first slider 18 will descend along the lifting guide rail 17 and compress the first spring 20 and the second spring 21;

[0081] As the first slider 18 and the second slider 19 approach each other, when the pressing roller 42 contacts the shaping roller 58, the first slider 18 and the second slider 19 will be relatively stationary and descend together until the lifting gear 25 moves to the rack ramp portion 34. At this time, the lifting gear 25 and the lifting rack 26 are disengaged, and the lifting gear 25 meshes with the transmission idler gear 47. During the process of the lifting gear 25 and the lifting rack 26 disengaging, whether the drive motor 28 continues to rotate or remains stationary will not cause the first slider 18 to rise;

[0082] When the shaping roller 58 descends to the bottom limit position, it will contact or be about to contact the rotating drum body 62.

[0083] After the lifting gear 25 and the transmission idler gear 47 are engaged, as the drive motor 28 continues to rotate, the transmission idler gear 47 drives the transmission gear 56 and the feed wheel shaft 49 to rotate together, and at the same time drives the rubber feed wheel 55 to rotate. Through the induction of the induction point 54 and the position induction contact 52, the rotation angle of the transmission idler gear 47 can be known and controlled. When the transmission idler gear 47 rotates a specific angle, that is, after the rubber feed wheel 55 drives the metal sheet 9 into the intersection part of the drum body 62 and the shaping roller 58, and before the metal sheet 9 is separated from the rubber feed wheel 55, turn off the drive motor 28;

[0084] Subsequently, the metal sheet 9 will be pulled by the rotating drum body 62 to continue moving, and through the extrusion of the drum body 62 and the shaping roller 58, the metal sheet 9 will be wound around the shaping roller 58 to form a metal tube 59. At this time, since the drive motor 28 is stationary, the metal sheet 9 and the rubber feed wheel 55 are relatively sliding.

[0085] After multiple rounds of rolling, the metal tube 59 will adhere to the shaping roller 58, leaving only a seam on the side.

[0086] Subsequently, the drive motor 28 rotates in reverse. At this time, since the second slider 19 and the U-shaped elastic piece 22 still maintain a large elastic force, when the elastic forces of the first spring 20 and the second spring 21 are dominant, the rotation of the drive motor 28 will allow the first spring 20 and the second spring 21 to elongate. Therefore, the first slider 18 will first reset to the top, and then the transverse slider 44 will slide horizontally.

[0087] After the first slider 18 and the second slider 19 are reset, the pressing roller 42 also separates from the shaping roller 58. At this time, since the first slider 18 has moved to the top limit position, the lifting gear 25 cannot rotate. Therefore, the rotation of the drive motor 28 will push the transverse slider 44 to slide away from the lifting base plate 16. At this time, the sliding discharging fork 65 can push the metal tube 59 sleeved on the shaping roller 58 down. The pushed-down metal tube 59 slides to a specific position through the discharging chute 63, and then the connection of the seam is completed by welding.

[0088] When it is necessary to change the diameter of the metal tube 59, only the shaping roller 58 of the corresponding specification needs to be replaced, and the position of the lifting rack 26 needs to be longitudinally adjusted.

[0089] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0090] The above describes the present invention and its embodiments. This description is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural modes and embodiments without creative efforts without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A metal plate coiling tube manufacturing device with variable diameter, characterized in that, It includes an automatic feeding mechanism, a two-stage adaptive pressing mechanism, an automatic feeding and discharging mechanism, and an extrusion and rolling mechanism. The automatic feeding mechanism includes a bottom plate, a feeding assembly, and a blanking chute. The blanking chute is arranged on the bottom plate, and the feeding assembly is arranged on the bottom plate; The two-stage adaptive pressing mechanism includes a lifting base, a two-stage lifting assembly, an adaptive descending control assembly, and a lifting driving assembly. The lifting base is arranged on the bottom plate, a lifting substrate is arranged above the lifting base, a slot for avoiding position is arranged on the lifting substrate, the two-stage lifting assembly is arranged on the lifting base, the adaptive descending control assembly is arranged on the two-stage lifting assembly, and the lifting driving assembly is arranged on the two-stage lifting assembly; The automatic feeding and discharging mechanism includes a front-end lifting assembly, a transverse movement transmission assembly, and a feeding assembly. The front-end lifting assembly is arranged on the lifting substrate, the transverse movement transmission assembly is arranged on the front-end lifting assembly, and the feeding assembly is arranged on the feeding assembly; The two-stage lifting assembly includes a lifting guide rail and a first slider. The lifting guide rail is fixedly connected to the lifting substrate, the first slider is slidably arranged on the lifting guide rail, and a plate-shaped convex platform part is arranged on the first slider; The adaptive descending control assembly includes a U-shaped elastic sheet, a friction shoe, a planetary reducer, a lifting gear, and a lifting rack. A sun gear shaft, an outer gear ring, and a planetary carrier output shaft are arranged on the planetary reducer. The planetary carrier output shaft is rotatably arranged in the first slider. The U-shaped elastic sheet is arranged between the plate-shaped convex platform part and the friction shoe. The friction shoe is in sliding contact with the outer wall of the outer gear ring. A friction coating is sprayed on the part where the outer gear ring contacts the friction shoe. The lifting gear is fixedly connected to the outer gear ring, the lifting rack is fixedly connected to the lifting substrate, the lifting gear and the lifting rack are engaged and driven, and a rack ramp part is arranged at the lower part of the lifting rack. When the lifting gear moves to the rack ramp part, the meshing relationship between itself and the lifting rack will be temporarily released.

2. The variable-diameter metal sheet winding tube manufacturing device according to claim 1, characterized in that: The feeding assembly includes a feeding bin, a feeding platform, a metal sheet, and a feeding spring. The feeding bin is arranged on the bottom plate, baffles are arranged on three sides of the top of the feeding bin, the feeding platform is fixedly connected to the feeding bin, the metal sheets are arranged in the feeding bin in an array, the metal sheets can slide vertically in the feeding bin, and the feeding spring is arranged between the bottom of the feeding bin and the metal sheets.

3. The variable-diameter metal plate coiling and pipe-making device according to claim 2, wherein: The two-stage lifting assembly further includes a second slider, a first spring, and a second spring. The second sliders are all snap-fitted and slidably arranged on the lifting guide rail. The first slider is located above the second slider. The first spring is arranged between the first slider and the second slider, and the second spring is arranged between the second slider and the lifting base.

4. A metal plate coiling pipe-making device with variable diameter according to claim 3, characterized in that: The lifting driving assembly includes a motor mounting plate, a driving motor, and a coupling. The motor mounting plate is fixedly connected to the side surface of the first slider, the driving motor is fixedly connected to the motor mounting plate, and the output shaft of the driving motor is connected to the sun gear shaft through the coupling.

5. A tube winding device for a metal plate with variable diameter according to claim 4, characterized in that: The front-end lifting assembly includes a T-shaped guide rail, a front slider, a U-shaped bracket, a lower pressure plate, and a lower pressure roller. The T-shaped guide rail is fixedly connected to the lifting base plate. A limit stop block is provided at the top of the T-shaped guide rail. The front slider is snap-fitted and slidably arranged on the T-shaped guide rail. The U-shaped bracket is fixedly connected to the front slider. The lower pressure plates are symmetrically arranged at both ends of the U-shaped bracket. A fork portion is provided at the bottom of the lower pressure plate. The lower pressure roller is rotatably arranged on the fork portion.

6. A metal plate coiling tube manufacturing device with variable diameter according to claim 5, characterized in that: The transverse movement transmission assembly includes a transverse movement guide rail, a transverse movement slider, a transmission lead screw, and a blanking fork. The transverse movement guide rail is fixedly connected to the lower pressure plate. The transverse movement slider is snap-fitted and slidably arranged on the transverse movement guide rail. The transmission lead screw is rotatably arranged in the U-shaped bracket and the lower pressure plate. One end of the transmission lead screw is connected to the output shaft of the planet carrier. The blanking fork is fixedly connected below the transverse movement slider.

7. A metal plate coiling tube manufacturing device with variable diameter according to claim 6, characterized in that: The feeding assembly includes an idle wheel bracket, a driving idle wheel, a feeding shaft bracket, and a feeding wheel shaft. The idle wheel bracket is fixedly connected to the lifting base. A position sensing contact is provided on the idle wheel bracket. The driving idle wheel is rotatably arranged on the idle wheel bracket. When the lifting gear descends to the rack ramp portion, the lifting gear can contact and mesh with the driving idle wheel. A position sensing ring is provided on the driving idle wheel. Induction points corresponding to the position sensing contacts are provided on the position sensing ring. The feeding shaft bracket is arranged on the feeding platform. The feeding wheel shaft is rotatably arranged in the feeding shaft bracket. A rubber feeding wheel is provided at the middle position of the feeding wheel shaft. The rubber feeding wheel is in rolling contact with the topmost metal sheet. A transmission gear is provided at one end of the feeding wheel shaft. The transmission gear meshes and drives with the driving idle wheel.

8. A metal plate coiling tube-making device with variable diameter according to claim 7, characterized in that: The extrusion and coiling mechanism for metal pipes includes a driving and rolling assembly, a shaping roller, and a metal pipe. The shaping roller is rotatably arranged in the second slider. The metal pipe is wrapped around the outside of the shaping roller. The metal pipe is formed by winding metal sheets. By the sliding of the blanking fork, the metal pipe can be separated from the shaping roller. The driving and rolling assembly is arranged on the bottom plate.

9. A metal plate coiling pipe-making device with variable diameter according to claim 8, characterized in that: The driving and rolling assembly includes a roller motor, a roller bracket, a roller body, and a gear transmission device. The roller motor is arranged on the bottom plate. The roller bracket is arranged on the bottom plate. The roller body is rotatably arranged on the roller bracket. The roller motor and the roller body are driven by the gear transmission device. An anti-slip coating is sprayed on the outside of the roller body.

Images