A slitting device for producing automobile color-changing film

Abstract

The application relates to the technical field of film cutting of automobile films, and particularly relates to a cutting device for automobile color-changing film production, which comprises a base, a conveying mechanism arranged on the top side of the rear end of the base, two horizontally arranged transverse guide rails arranged on one side of the top of the base and located at the output end of the conveying mechanism, the two ends of the transverse guide rails are horizontally arranged towards the left and right ends of the base, transverse sliding blocks are slidably connected to the transverse guide rails, the top of each transverse sliding block is connected to a same hollow rectangular member, the upper and lower ends of the hollow rectangular member are arranged in an open mode, a cutting knife arranged in a vertical mode is arranged in the hollow rectangular member through a reciprocating assembly, and the top end of the cutting knife is movably arranged outside the hollow rectangular member; a transverse driving assembly for driving the hollow rectangular member to slide along the transverse guide rails is arranged between the two transverse guide rails; and a winding mechanism is arranged at the top front end of the base. Through the above structure, the cutting knife can move horizontally and vertically at the same time, so that the cutting knife can not only rely on the blade to be passively adapted to cutting.

Description

Technical Field

[0001] This invention relates to the field of automotive film slitting and edge cutting technology, specifically to a slitting device for automotive color-changing film production. Background Technology

[0002] Car wrapping film is a high-polymer film that can be applied to the paint surface of a car to quickly change its appearance, color, and texture. Common materials include PVC and TPU. Its core functions are twofold: first, to meet individual needs, providing a wide range of colors and textures to make the vehicle's appearance more unique; and second, to protect the original paint, isolating it from external acids, alkalis, oxidation, and minor scratches, and ensuring that the original paint is not damaged after the film is removed.

[0003] The manufacturing process of color-changing film typically includes steps such as ingredient preparation, mixing, molding, cooling, slitting and winding, and quality inspection. Among these, the slitting and winding process involves cutting the composite color-changing film into different sizes using a slitting machine, and then winding it into a finished product for subsequent storage, transportation, and adaptation to construction needs. In existing technologies, color-changing film slitting devices are commonly used to complete the cutting and winding tasks of color-changing film. However, in existing technologies, the slitting devices rely solely on the blade itself to passively meet the cutting edge, and the blade position is often fixed. This results in a fixed blade position used for cutting the color-changing film, which is prone to jerking and jamming during the cutting process, affecting the cutting effect of the color-changing film. Summary of the Invention

[0004] The purpose of this invention is to provide a slitting device for the production of automotive color change film, which solves the problem that in the prior art, the slitting device relies solely on the blade itself to passively meet the cutting edge, resulting in a fixed position of the blade used to cut the color change film, which makes the blade position prone to stuttering and affects the cutting effect of the color change film.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A slitting device for producing automotive color-changing film includes a base. A conveying mechanism is provided on the rear end of the top side of the base. Two parallel transverse guide rails are provided on the top of the base, located on the side of the output end of the conveying mechanism. The two ends of the transverse guide rails are respectively horizontally positioned towards the left and right ends of the base. A transverse slider is slidably connected to each transverse guide rail. The top of the transverse slider is connected to the same hollow rectangular component, and the top and bottom ends of the hollow rectangular component are open. A vertically positioned cutting blade is installed inside the hollow rectangular component through a reciprocating assembly, and the top end of the cutting blade moves through the hollow rectangular component. A transverse drive assembly is provided between the two transverse guide rails for driving the hollow rectangular component to slide along the transverse guide rails. A winding mechanism is provided at the front end of the top of the base.

[0007] A further technical solution is that the reciprocating assembly includes a vertical guide rail, an upper sector gear, and a lower sector gear. The vertical guide rail is vertically arranged inside the hollow rectangular component. A vertical slider is slidably connected to the vertical guide rail, and a vertical rack is fixedly connected to the vertical slider. The bottom end of the cutting blade is connected to the top of the vertical rack. Inside the hollow rectangular component, on one side of the vertical guide rail, an upper rotating shaft and a lower rotating shaft are arranged rotatably from top to bottom. The upper sector gear and the lower sector gear are respectively fixedly sleeved on the outer side of the upper rotating shaft and the lower rotating shaft, and the gear surfaces of the upper sector gear and the lower sector gear are misaligned. The hollow rectangular component is provided with a rotary drive assembly for driving the upper rotating shaft and the lower rotating shaft to rotate in opposite directions, so that the upper sector gear and the lower sector gear rotate in opposite directions, and the tooth surfaces of the upper sector gear and the lower sector gear mesh with the tooth surfaces of the vertical rack.

[0008] A further technical solution is that the rotary drive assembly includes an upper gear, a lower gear, and a drive motor. The upper gear and the lower gear are respectively sleeved on the outer sides of the upper and lower rotating shafts, and the upper gear and the lower gear are meshed. The drive motor is located on the outer side of the hollow rectangular part, and the output shaft of the drive motor is set towards the inside of the hollow rectangular part and is connected to one end of the lower rotating shaft for transmission.

[0009] A further technical solution is that the lateral drive assembly includes a lateral rack, which is horizontally positioned between two lateral guide rails with its two ends facing the left and right ends of the base, respectively. A driven shaft is rotatably mounted inside the hollow rectangular part below the lower rotating shaft, and a drive gear is sleeved on the driven shaft. The drive gear meshes with the lower gear and the lateral rack, respectively.

[0010] A further technical solution is that the conveying mechanism includes two symmetrically arranged support plates and an upper rotating roller and a lower rotating roller rotatably disposed between the two support plates. The lower rotating roller is located directly below the upper rotating roller. A rotating motor for driving the lower rotating roller is provided on the side wall of one of the support plates. The ends of the upper rotating roller and the lower rotating roller away from the rotating motor both rotatably pass through the support plate. A passive gear and a driving gear are respectively fitted on the outer sides of the upper rotating roller and the lower rotating roller, and the passive gear and the driving gear are meshed.

[0011] A further technical solution is that a vertical plate is provided at one end of the base, and the winding mechanism includes a rotating rod that is horizontally rotatable at the top of the vertical plate. One end of the rotating rod passes through the vertical plate and is equipped with a winding roller. A winding gear is connected to the outer side of the other end of the rotating rod, and a transmission gear is sleeved on the end of the lower rotating roller near the drive gear. The winding gear and the transmission gear are connected by a chain drive.

[0012] A further technical solution involves a support sleeve connected to the end of the rotating rod away from the winding gear via a connecting seat. The winding roller is fitted onto the outside of the support sleeve. Multiple sets of movable holes are arranged in a linear array along the central axis on the outside of the support sleeve. Each set of movable holes is arranged in a ring array around the outside of the support sleeve, and the movable holes are connected to the inside of the support sleeve. A rotating component is rotatably mounted inside the movable hole via a rotating bolt. An abutment block is connected to the end of the rotating component away from the rotating bolt. A crossbar is movably mounted inside the support sleeve along its central axis. Multiple push rings are fitted onto the outside of the crossbar and are slidably connected to the inside of the support sleeve. Each push ring corresponds to one of the multiple sets of movable holes.

[0013] A further technical solution involves a fixed ring fitted on the outer side of the crossbar near the connecting seat, with a locking truncated cone connected to its end. The outer diameter of the locking truncated cone decreases from the end near the fixed ring to the other end. An unlocking truncated cone is slidably provided on the outer side of the crossbar between the fixed ring and the locking truncated cone, with the outer diameter of the unlocking truncated cone increasing from the end near the fixed ring to the other end. A movable groove communicating with the support sleeve is provided at the end of the connecting seat near the support sleeve. Two mounting grooves are symmetrically provided on the groove wall of the movable groove. A limiting ring is provided at the groove opening of the mounting groove. A through hole communicating with the movable groove is provided on the outer side of the connecting seat. The same sliding rod is slidably provided between the through hole and the limiting ring. A support ring is fitted on the outer side of the sliding rod near the limiting ring. A support spring is fitted on the outer side of the sliding rod. The two ends of the support spring abut against the bottom of the mounting groove and the support ring, respectively. A one-way limiting block is provided at the end of the sliding rod facing the movable groove. The side of the one-way limiting block facing the locking truncated cone is set as an inclined sliding surface.

[0014] A further technical solution is that a magnetic ring is embedded in the end of the locking truncated cone facing the unlocking truncated cone, and a magnetic ring that repels the magnetic ring is embedded in the end of the unlocking truncated cone facing the locking truncated cone; an abutment ring is provided at the end of the support sleeve away from the connecting seat, and a handle is connected to the end of the crossbar away from the connecting seat that movably passes through the abutment ring; a locking ring is fitted on the outer side of the end of the crossbar away from the connecting seat and placed inside the support sleeve.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] In use, the reciprocating assembly drives the cutting blade to move vertically back and forth. At the same time, the horizontal drive assembly drives the hollow rectangular part to slide along the guide rail, thereby driving the cutting blade to move horizontally. At this time, the cutting blade moves horizontally and vertically back and forth at the same time. This allows the cutting blade to cut the color-changing film by moving vertically back and forth and using its own cutting force. This avoids the cutting blade from being easily jerked when it is cutting the color-changing film by simply relying on its own blade to passively meet the cutting, which would affect the cutting accuracy and flatness of the color-changing film. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a slitting device for producing automotive color-changing film according to the present invention.

[0018] Figure 2 For the present invention Figure 1 Schematic diagram of the cross-sectional structure at point A in the middle.

[0019] Figure 3 This is a schematic diagram of the connecting seat and support sleeve structure of the present invention.

[0020] Figure 4 This is a three-dimensional cross-sectional view of the connection between the connector and the support sleeve of the present invention.

[0021] Figure 5 For the present invention Figure 4 Schematic diagram of the cross-sectional structure at point B.

[0022] Figure 6 This is a schematic diagram of the cross-sectional structure at the connection between the connector and the support sleeve of the present invention.

[0023] Icons: 1-Base, 2-Horizontal guide rail, 3-Horizontal slider, 4-Hollow rectangular piece, 5-Cut blade, 6-Vertical guide rail, 7-Upper sector gear, 8-Lower sector gear, 9-Vertical slider, 10-Vertical rack, 11-Upper shaft, 12-Lower shaft, 13-Upper gear, 14-Lower gear, 15-Drive motor, 16-Horizontal rack, 17-Driven shaft, 18-Drive gear, 19-Support plate, 20-Upper rotating roller, 21-Lower rotating roller, 22-Rotating motor, 23-Passive gear, 24-Driving gear, 25-Auxiliary roller, 26-Vertical plate, 27-Rotating rod, 28-Wrapping 29-Roller, 30-Drive gear, 31-Chain, 32-Connecting seat, 33-Support sleeve, 34-Modible hole, 35-Rotating bolt, 36-Rotating component, 38-Abutting block, 39-Crossbar, 40-Push ring, 41-Fixing ring, 42-Locking frustum, 43-Unlocking frustum, 44-Modible groove, 45-Mounting groove, 46-Limiting ring, 47-Through hole, 48-Slide rod, 49-Support ring, 50-Support spring, 51-One-way limiting block, 52-Inclined sliding surface, 53-Magnetic ring, 54-Magnetic coil, 55-Abutting ring, 57-Support component, 58-Groove, 59-Roller. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0025] Figures 1 to 6 The following is an embodiment of the present invention.

[0026] Example 1

[0027] This invention discloses a slitting device for producing automotive color-changing film, comprising a base 1, a conveying mechanism on the top rear end of the base 1, two parallel transverse guide rails 2 on the top of the base 1 located at the output end of the conveying mechanism, the two ends of the transverse guide rails 2 being horizontally oriented towards the left and right ends of the base 1 respectively, and transverse sliders 3 being slidably connected to each transverse guide rail 2, the top of the transverse sliders 3 being connected to the same hollow rectangular component 4, and the upper and lower ends of the hollow rectangular component 4 being open, a vertically arranged cutting blade 5 being installed inside the hollow rectangular component 4 through a reciprocating assembly, the top end of the cutting blade 5 being movable through the hollow rectangular component 4; a transverse driving assembly for driving the hollow rectangular component 4 to slide along the transverse guide rails 2 is provided between the two transverse guide rails 2; and a winding mechanism is provided at the top front end of the base 1.

[0028] In this embodiment, the worker passes the end of the color-changing film to be cut through the conveying mechanism and fixes it to the winding mechanism. The conveying mechanism and the winding mechanism work together to wind and wind the color-changing film. When the winding mechanism winds the color-changing film to a suitable length, the conveying mechanism and the winding mechanism stop working. The reciprocating component is started to drive the cutting blade 5 to move vertically back and forth. At the same time, the hollow rectangular part 4 is driven to slide along the guide rail through the horizontal drive component, thereby driving the cutting blade 5 to move horizontally. At this time, the cutting blade 5 moves horizontally and also moves vertically back and forth. When the cutting blade 5 cuts the color-changing film, it moves vertically back and forth and uses its own cutting force to complete the cutting. This avoids the cutting blade 5 from being easily jerked when cutting the color-changing film by only passively meeting the cutting with its own blade. This would affect the cutting accuracy and flatness of the color-changing film.

[0029] In a preferred embodiment, the reciprocating assembly includes a vertical guide rail 6, an upper sector gear 7, and a lower sector gear 8. The vertical guide rail 6 is vertically disposed within the hollow rectangular component 4. A vertical slider 9 is slidably connected to the vertical guide rail 6, and a vertical rack 10 is fixedly connected to the vertical slider 9. The bottom end of the cutting blade 5 is connected to the top of the vertical rack 10. An upper rotating shaft 11 and a lower rotating shaft 12 are rotatably disposed on one side of the vertical guide rail 6 within the hollow rectangular component 4, rotating sequentially from top to bottom. The upper sector gear 7 and the lower sector gear 8 are respectively fixedly sleeved on the outer sides of the upper rotating shaft 11 and the lower rotating shaft 12, and the gear surfaces of the upper sector gear 7 and the lower sector gear 8 are misaligned. The hollow rectangular component 4 is provided with a rotary drive assembly for driving the upper rotating shaft 11 and the lower rotating shaft 12 to rotate in opposite directions, so that the upper sector gear 7 and the lower sector gear 8 rotate in opposite directions, and the tooth surfaces of the upper sector gear 7 and the lower sector gear 8 mesh with the tooth surfaces of the vertical rack 10, respectively.

[0030] Specifically, in use, due to the misalignment of the gear surfaces of the upper sector gear 7 and the lower sector gear 8, when the tooth surface of the upper sector gear 7 meshes with the tooth surface of the vertical rack 10, the tooth surface of the lower sector gear 8 does not mesh with the tooth surface of the vertical rack 10. Conversely, when the tooth surface of the lower sector gear 8 meshes with the tooth surface of the vertical rack 10, the tooth surface of the upper sector gear 7 does not mesh with the tooth surface of the vertical rack 10. Because the rotary drive assembly drives the upper sector gear 7 and the lower sector gear 8 to rotate in opposite directions, when the upper sector gear 7 rotates and meshes with the vertical rack 10… The meshing causes the vertical rack 10 to slide vertically downward along the vertical guide rail 6, thereby driving the cutting blade 5 to move vertically downward. When the tooth surface of the upper sector gear 7 separates from the tooth surface of the vertical rack 10, the tooth surface of the lower sector gear 8 meshes with the tooth surface of the vertical rack 10. Due to the misalignment and opposite rotation of the upper sector gear 7 and the lower sector gear 8, the rotation of the lower sector gear 8 drives the vertical rack 10 to move vertically upward along the guide rail, thereby driving the cutting blade 5 to move vertically upward. This process is repeated, thereby driving the cutting blade 5 to move vertically back and forth.

[0031] In a preferred embodiment, the rotary drive assembly includes an upper gear 13, a lower gear 14, and a drive motor 15. The upper gear 13 and lower gear 14 are respectively sleeved on the outer sides of the upper rotating shaft 11 and the lower rotating shaft 12, and are meshed together. The drive motor 15 is located on the outer side of the hollow rectangular member 4, and the output shaft of the drive motor 15 is oriented towards the interior of the hollow rectangular member 4 and is connected to one end of the lower rotating shaft 12 for transmission.

[0032] Specifically, the drive motor 15 drives the lower shaft 12 to rotate, the lower shaft 12 drives the lower gear 14 to rotate, the lower gear 14 meshes with the upper gear 13 to drive the upper gear 13 to rotate, thereby realizing the opposite rotation of the lower gear 14 and the upper gear 13, and finally realizing the opposite rotation of the upper shaft 11 and the lower shaft 12.

[0033] In a preferred embodiment, the transverse drive assembly includes a transverse rack 16, which is horizontally disposed between two transverse guide rails 2, with its two ends facing the left and right ends of the base 1 respectively. A driven shaft 17 is rotatably disposed inside the hollow rectangular part 4 below the lower rotating shaft 12, and a drive gear 18 is sleeved on the driven shaft 17. The drive gear 18 is respectively meshed with the lower gear 14 and the transverse rack 16.

[0034] Specifically, when cutting the color-changing film, the drive motor 15 drives the lower rotating shaft 12 to rotate in the forward direction. The lower rotating shaft 12 drives the lower gear 14 to rotate. The lower gear 14 meshes with the drive gear 18, which in turn drives the drive gear 18 to rotate and mesh with the transverse rack 16. This causes the hollow rectangular part 4 to slide along the guide rail, thereby driving the cutting blade 5 to move horizontally in the forward direction to cut the color-changing film. After cutting is completed, the drive motor 15 drives the lower rotating shaft 12 to rotate in the reverse direction, which ultimately drives the cutting blade 5 to move horizontally in the reverse direction to reset it, so that the color-changing film can be cut again. Through the above structure, the drive motor 15 drives the cutting blade 5 to move horizontally while driving it to move vertically reciprocating, which avoids the need to set up a separate drive device to drive the cutting blade 5 to move horizontally, thus avoiding increased costs.

[0035] It should be noted that when the conveying mechanism and the winding mechanism work together to wind and rewind the color-changing film, the hollow rectangular piece 4 is located at one end of the transverse guide rail 2 so that the cutting blade 5 is in the initial position, thus avoiding obstruction when the conveying mechanism and the winding mechanism work together to wind and rewind the color-changing film.

[0036] Example 2

[0037] Based on Embodiment 1, the conveying mechanism includes two symmetrically arranged support plates 19 and an upper rotating roller 20 and a lower rotating roller 21 rotatably disposed between the two support plates 19. The lower rotating roller 21 is located directly below the upper rotating roller 20. A rotating motor 22 for driving the lower rotating roller 21 is provided on the side wall of one of the support plates 19. The ends of the upper rotating roller 20 and the lower rotating roller 21 away from the rotating motor 22 both rotatably pass through the support plate 19. A passive gear 23 and a driving gear 24 are respectively sleeved on the outer sides of the upper rotating roller 20 and the lower rotating roller 21. The passive gear 23 and the driving gear 24 are meshed together.

[0038] In this embodiment, during use, the color-changing film is passed between the upper rotating roller 20 and the lower rotating roller 21. By controlling the operation of the rotating motor 22, the lower rotating roller 21 is driven to rotate. Under the action of the meshing transmission of the passive gear 23 and the active gear 24, the upper rotating roller 20 and the lower rotating roller 21 rotate in opposite directions, causing the color-changing film to move towards the winding mechanism. It should be noted that the distance between the upper rotating roller 20 and the lower rotating roller 21 can be specifically set according to the actual thickness of the color-changing film to ensure that the upper rotating roller 20 and the lower rotating roller 21 rotate in opposite directions, so that the color-changing film is not excessively squeezed and damaged when it moves towards the winding mechanism. At the same time, the transmission of the color-changing film will not be affected by the excessive distance between the upper rotating roller 20 and the lower rotating roller 21. In addition, a silicone layer can be provided on the outer side of the upper rotating roller 20 and the lower rotating roller 21.

[0039] In a preferred embodiment, the conveying mechanism also includes auxiliary rollers 25, which are arranged in a linear array between two support plates 19. By setting the auxiliary rollers 25, the color-changing film can be supported.

[0040] Example 3

[0041] Based on embodiment 2, a vertical plate 26 is provided at one end of the front end of the base 1. The winding mechanism includes a rotating rod 27, which is horizontally rotatable at the top of the vertical plate 26. One end of the rotating rod 27 passes through the vertical plate 26 and is detachably connected to a winding roller 28. A winding gear 29 is connected to the outer side of the other end of the rotating rod 27. A transmission gear 30 is sleeved on the end of the lower rotating roller 21 near the drive gear 24. The winding gear 29 and the transmission gear 30 are connected by a chain 31.

[0042] In this embodiment, by setting the winding gear 29 and the transmission gear 30 to be connected by the chain 31, while the drive motor 15 drives the lower rotating roller 21 and the upper rotating roller 20 to transmit the color-changing film, it also drives the rotating rod 27 to rotate. The winding roller 28 installed on the rotating rod 27 follows the rotation to wind and wind the color-changing film, thus avoiding the need to set a separate drive mechanism to drive the winding roller 28 to rotate to wind and wind the color-changing film, which would increase costs.

[0043] In a preferred embodiment, the end of the rotating rod 27 away from the take-up gear 29 is connected to a support sleeve 33 via a connecting seat 32. The winding roller 28 is sleeved on the outside of the support sleeve 33. Multiple sets of movable holes 34 are arranged in a linear array along the central axis on the outside of the support sleeve 33, specifically five sets. Each set of movable holes 34 consists of four movable holes 34. Each set of movable holes 34 is arranged in a ring array around the outside of the support sleeve 33, and the movable holes 34 are connected to the inside of the support sleeve 33. A rotating element 36 is rotatably mounted inside the movable hole 34 via a rotating bolt 35. A stop block 38 is connected to the end of 36 away from the rotating bolt 35; a crossbar 39 is movably provided inside the support sleeve 33 along its central axis, and multiple push rings 40 are sleeved on the outside of the crossbar 39, corresponding to the number of sets of movable holes 34, and slidably connected to the inside of the support sleeve 33. The multiple push rings 40 correspond to multiple sets of movable holes 34, so that the push rings 40 are moved by pushing the crossbar 39 to abut against the rotating part 36 in the corresponding set of movable holes 34. The abutment block 38 is located at the end away from the central axis of the support sleeve 33, and is provided to extend out of the movable hole 34.

[0044] Specifically, when the winding roller 28 is needed for winding and taking up the color-changing film, the conveying mechanism stops working, the central shaft hole of the winding roller 28 is aligned with the support sleeve 33 and pushed in, so that the winding roller 28 is sleeved on the outside of the support sleeve 33. Then, the crossbar 39 is pushed to drive the pushing ring 40 to move towards the connecting seat 32. The pushing ring 40 abuts against the rotating part 36, causing the rotating part 36 to rotate and be placed in the movable hole 34. The abutting block 38 passes through the movable hole 34 and abuts against the inner wall of the winding roller 28, thereby fixing the winding roller 28. Conversely, when it is necessary to disassemble the winding roller 28 after the color-changing film has been wound, the crossbar 39 is pulled, causing the pushing ring 40 to move away from the corresponding set of movable holes 34, so that the pushing ring 40 does not abut against the rotating part 36. At this time, the abutting block 38 no longer abuts against the inner wall of the winding roller 28, and the winding roller 28 can be disassembled. Through the above structure, it is easy to quickly disassemble and assemble the winding roller 28.

[0045] It should be noted that the central shaft hole with openings at both ends along the central axis of the winding roller 28 is existing technology, and the two ends of the central shaft hole are provided with guide ports so that the support sleeve can be inserted into the central shaft hole. This will not be described in detail here. At the same time, the diameter of the central shaft hole of the winding roller 28 can be set according to the actual situation so that the push ring 40 abuts against the rotating part 36, causing the rotating part 36 to rotate and be placed in the movable hole 34, and the abutting block 38 passes through the movable hole 34 and abuts tightly against the hole wall of the central shaft hole of the winding roller 28.

[0046] In a preferred embodiment, a support member 57 is connected to one end of the rotating member 36 near the rotating bolt 35, and the support member 57 and the rotating member 36 are arranged in a V shape. A groove 58 is provided on the side of the support member 57 away from the crossbar 39, and a roller 59 is rotatably arranged in the groove 58.

[0047] Specifically, when it is necessary to disassemble the winding roller 28 after the color-changing film has been wound, pull the crossbar 39 to move the push ring 40 away from the connecting seat 32. The push ring 40 slides to contact the support member 57, causing it to abut against the support member 57. This allows the support member 57 to rotate and be placed inside the movable hole 34. At this time, the wheel surface of the roller 59 away from the crossbar 39 passes through the movable hole 34 and contacts the inner wall of the winding roller 28, providing support for the winding roller 28. At the same time, with the cooperation of the rotating bolt 35, the rotating member 36 drives the abutment block 38 to rotate and be placed inside the movable hole 34, no longer contacting the inner wall of the winding roller 28. Then, pull the winding roller 28, and the roller 59 rolls against the inner wall of the winding roller 28, thus facilitating the removal of the winding roller 28 from the support. Similarly, when the winding roller 28 is installed after removing the sleeve 33, the push ring 40 abuts against the support 57, and the roller 59, away from the crossbar 39, passes through the movable hole 34. The central shaft hole of the winding roller 28 is aligned with the support sleeve 33 and pushed in. The roller 59 rolls in contact with the inner wall of the winding roller 28, which facilitates the winding roller 28 to slide to the appropriate position. When fixing the winding roller 28, the push crossbar 39 drives the push ring 40 to move towards the connecting seat 32. The push ring 40 slides to contact the rotating part 36 and abuts against the rotating part 36, causing the rotating part 36 to rotate and be placed in the movable hole 34. The abutment block 38 passes through the movable hole 34 and abuts against the inner wall of the winding roller 28, thereby fixing the winding roller 28.

[0048] The angle between the rotating member 36 and the support member 57 is rounded, so that the push ring 40 can smoothly slide from contact with the rotating member 36 to contact with the support member 57.

[0049] In a preferred embodiment, a fixing ring 41 is fitted onto the outer side of the crossbar 39 near the connecting seat 32, and a locking frustum 42 is connected to its end. The outer diameter of the locking frustum 42 decreases from the end near the fixing ring 41 to the other end, so that its side is inclined. An unlocking frustum 43 is slidably provided on the outer side of the crossbar 39 between the fixing ring 41 and the locking frustum 42. The outer diameter of the unlocking frustum 43 increases from the end near the fixing ring 41 to the other end, so that its side is inclined. The connecting seat 32 has a movable groove 44 at the end near the support sleeve 33, which communicates with the support sleeve 33. Two mounting grooves 45 are symmetrically provided on the groove wall of the movable groove 44, and a limiting ring 46 is provided at the groove opening of the mounting groove 45. The outer wall of the connecting seat 32 is provided with a through hole 47 that communicates with the movable groove 44. The same slide rod 48 is slidably provided between the through hole 47 and the limiting ring 46. A support ring 49 is sleeved on the outer side of the slide rod 48 near the limiting ring 46. A support spring 50 is sleeved on the outer side of the slide rod 48. The two ends of the support spring 50 are respectively abutted against the bottom of the mounting groove 45 and the support ring 49. A one-way limiting block 51 is provided on the end of the slide rod 48 facing the movable groove 44. The side of the one-way limiting block 51 facing the locking frustum 42 is set as an inclined sliding surface 52. In the initial state of installing the winding roller 28, the locking frustum 42 is placed in the end of the support sleeve 33 near the connecting seat 32, and the pushing ring 40 is placed on the side of the corresponding set of movable holes 34.

[0050] Specifically, when the push bar 39 drives the push ring 40 to move toward the corresponding set of movable holes 34, the side of the locking frustum 42 slides against the inclined sliding surface 52 of the one-way limiting block 51, pushing the one-way limiting block 51 to slide into the mounting groove 45, while simultaneously squeezing the support spring 50. When the abutment block 38 passes through the movable hole 34 and abuts against the inner wall of the winding roller 28, the locking frustum 42 slides past the one-way limiting block 51 and no longer slides against it. Under the combined action of the support spring 50 and the support ring 49, the one-way limiting block 51 is placed in the movable groove 44, and the side of the one-way limiting block 51 away from the inclined sliding surface 52 is against the end of the locking frustum 42. The locking frustum 42 is limited by the contact part, and the pushing ring 40 abuts against the rotating part 36. Through the above structure, the crossbar 39 is prevented from driving the pushing ring 40 to slide and reset, so that the abutment block 38 does not abut against the inner wall of the winding roller 28, ensuring the stability of the winding roller 28. At the same time, because the one-way limiting block 51 is under the action of the supporting spring 50, the one-way limiting block 51 can be stably placed in the movable groove 44 without applying force, and then abut against the end of the unlocking frustum 43, preventing the unlocking frustum 43 from sliding into the movable groove 44. Under the action of the fixing ring 41, the crossbar 39 is prevented from sliding into the movable groove 44 without the application of external force.

[0051] When the winding roller 28 needs to be unlocked and disassembled later, continue to push the crossbar 39 towards the connecting seat 32. The one-way limiting block 51 contacts the unlocking platform 43, and the unlocking platform 43 abuts against the inclined sliding surface 52 of the one-way limiting block 51, pushing the one-way limiting block 51 to slide into the mounting groove 45. When the end of the unlocking platform 43 near the locking platform 42 slides past the one-way limiting block 51, under the cooperation of the support spring 50 and the support ring 49, the one-way limiting block 51 is pushed into the movable groove 44. The end of the one-way limiting block 51 abuts against the side of the unlocking platform 43, so that the unlocking platform 43 slides along the crossbar 39 closer to the locking platform 42. The end of the unlocking platform 43 with the larger outer ring diameter is in close contact with the end of the locking platform 42 with the larger outer ring diameter. At this time, pull the crossbar 39 in the opposite direction, and the end of the one-way limiting block 51 and the unlocking platform 42 are in close contact. The side of the frustum 43 slides against the sliding contact, pushing the one-way limiting block 51 into the sliding mounting groove 45. At this time, the end of the unlocking frustum 43 with the larger ring diameter is in close contact with the end of the locking frustum 42 with the larger ring diameter, preventing the side of the one-way limiting block 51 away from the inclined sliding surface 52 from contacting the end of the locking frustum 42 and limiting the locking frustum 42. This ensures that the unlocking frustum 43 and the locking frustum 42 slide past the one-way limiting block 51, so that the one-way limiting block 51 no longer limits the locking frustum 42. Then, the crossbar 39 can be pulled to drive the pushing ring 40 to slide and abut against the support member 57, so that the wheel surface of the roller 59 away from the crossbar 39 passes through the movable hole 34 and contacts the inner wall of the winding roller 28, providing support for the winding roller 28. At this time, the abutment block 38 no longer abuts against the inner wall of the winding roller 28, and the winding roller 28 can be disassembled.

[0052] The unlocking platform 43 and the locking platform 42 are mirror images of each other, meaning that the end ring diameters of the unlocking platform 43 and the locking platform 42 that are close to each other are the same. This ensures that when the end with the larger ring diameter of the unlocking platform 43 is in close contact with the end with the larger ring diameter of the locking platform 42, the unlocking platform 43 and the locking platform 42 can slide past the one-way limit block 51 by pulling the crossbar 39, so that the unlocking platform 43 can slide along the crossbar 39 to achieve reset.

[0053] In a preferred embodiment, a magnetic ring 53 is embedded in the end of the locking truncated cone 42 facing the unlocking truncated cone 43, and a magnetic ring 54 repelling the magnetic ring 53 is embedded in the end of the unlocking truncated cone 43 facing the locking truncated cone 42; an abutment ring 55 is provided at the end of the support sleeve 33 away from the connecting seat 32, and the end of the crossbar 39 away from the connecting seat 32 moves through the abutment ring 55 and is connected to a handle; a locking ring is fitted on the outer side of the end of the crossbar 39 away from the connecting seat 32 and placed inside the support sleeve 33.

[0054] Specifically, by setting magnetic ring 53 and magnetic coil 54, when the unlocking platform 43 and the locking platform 42 slide along the crossbar 39 to achieve reset, the magnetic ring 53 and magnetic coil 54 repel each other and exert a force on the unlocking platform 43, causing the unlocking platform 43 to slide away from the support ring 49 along the crossbar 39 for subsequent use. It should be noted that the force generated by the repulsion between the magnetic ring 53 and magnetic coil 54 is less than the squeezing force generated by the end of the one-way limiting block 51 on the side of the unlocking platform 43 under the action of the support spring 50. By setting abutment ring 55 and locking ring, it is possible to prevent the crossbar 39 from being completely pulled out of the support sleeve 33.

[0055] Although the invention has been described herein with reference to several illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various variations and modifications can be made to the components and / or layout of the subject matter within the scope of the disclosure, drawings, and claims. Besides variations and modifications to the components and / or layout, other uses will be apparent to those skilled in the art.

Claims

1. A slitting device for producing automotive color-changing film, comprising a base (1), characterized in that: The base (1) is provided with a conveying mechanism on the top rear end. The top of the base (1) is provided with two parallel transverse guide rails (2) on one side of the output end of the conveying mechanism. The two ends of the transverse guide rails (2) are respectively horizontally facing the left and right ends of the base (1). A transverse slider (3) is slidably connected to each transverse guide rail (2). The top of the transverse slider (3) is connected to the same hollow rectangular piece (4). The upper and lower ends of the hollow rectangular piece (4) are open. A vertically arranged cutting blade (5) is installed in the hollow rectangular piece (4) through a reciprocating assembly. The top end of the cutting blade (5) moves through the hollow rectangular piece (4). A transverse driving assembly is provided between the two transverse guide rails (2) for driving the hollow rectangular piece (4) to slide along the transverse guide rails (2). The top front end of the base (1) is provided with a winding mechanism. The base (1) has a vertically arranged vertical plate (26) at one end of its front end. The winding mechanism includes a rotating rod (27), which is horizontally rotatable at the top of the vertical plate (26). One end of the rotating rod (27) passes through the vertical plate (26) and is detachably connected to a winding roller (28). A winding gear (29) is connected to the outer side of the other end of the rotating rod (27). The end of the rotating rod (27) away from the winding gear (29) is connected to a support sleeve (33) via a connecting seat (32). The winding roller (28) is sleeved on the outside of the support sleeve (33). Multiple sets of movable holes (34) are arranged in a linear array along the central axis on the outside of the support sleeve (33). Each set of movable holes (34) is arranged in a ring array around the outside of the support sleeve (33), and the movable holes (34) are connected to the inside of the support sleeve (33). In the configuration, a rotating component (36) is rotatably provided in the movable hole (34) via a rotating bolt (35), and an abutment block (38) is connected to the end of the rotating component (36) away from the rotating bolt (35); a crossbar (39) is movably provided in the support sleeve (33) along its central axis, and a plurality of push rings (40) are sleeved on the outside of the crossbar (39) and slidably connected to the inside of the support sleeve (33), and the plurality of push rings (40) are respectively provided for a plurality of movable holes (34); The rotating member (36) is connected to a support member (57) at one end near the rotating bolt (35), and the support member (57) and the rotating member (36) are arranged in a V shape. A groove (58) is provided on the side of the support member (57) away from the crossbar (39), and a roller (59) is rotatably provided in the groove (58).

2. The slitting device for producing automotive color-changing film according to claim 1, characterized in that: The reciprocating assembly includes a vertical guide rail (6), an upper sector gear (7), and a lower sector gear (8). The vertical guide rail (6) is vertically disposed within the hollow rectangular component (4). A vertical slider (9) is slidably connected to the vertical guide rail (6), and a vertical rack (10) is fixedly connected to the vertical slider (9). The bottom end of the cutting blade (5) is connected to the top of the vertical rack (10). Inside the hollow rectangular component (4), on one side of the vertical guide rail (6), an upper rotating shaft (11) and a lower rotating shaft (12) are rotatably disposed from top to bottom. The upper sector gear (7) and the lower sector gear (8) are respectively fixedly sleeved on the outer side of the upper rotating shaft (11) and the lower rotating shaft (12), and the gear surfaces of the upper sector gear (7) and the lower sector gear (8) are misaligned; the hollow rectangular part (4) is provided with a rotary drive assembly for driving the upper rotating shaft (11) and the lower rotating shaft (12) to rotate in opposite directions, so that the upper sector gear (7) and the lower sector gear (8) rotate in opposite directions, and the tooth surfaces of the upper sector gear (7) and the lower sector gear (8) respectively mesh with the tooth surface of the vertical rack (10).

3. The slitting device for producing automotive color-changing film according to claim 2, characterized in that: The rotary drive assembly includes an upper gear (13), a lower gear (14), and a drive motor (15). The upper gear (13) and the lower gear (14) are respectively sleeved on the outer sides of the upper rotating shaft (11) and the lower rotating shaft (12), and the upper gear (13) and the lower gear (14) are meshed. The drive motor (15) is located on the outer side of the hollow rectangular part (4), and the output shaft of the drive motor (15) is arranged facing the interior of the hollow rectangular part (4) and is connected to one end of the lower rotating shaft (12) for transmission.

4. The slitting device for producing automotive color-changing film according to claim 3, characterized in that: The transverse drive assembly includes a transverse rack (16), which is horizontally positioned between the two transverse guide rails (2) with its two ends facing the left and right ends of the base (1). A driven shaft (17) is rotatably provided inside the hollow rectangular part (4) below the lower rotating shaft (12). A drive gear (18) is sleeved on the driven shaft (17), and the drive gear (18) meshes with the lower gear (14) and the transverse rack (16) respectively.

5. A slitting device for producing automotive color-changing film according to claim 1, characterized in that: The conveying mechanism includes two symmetrically arranged support plates (19) and an upper rotating roller (20) and a lower rotating roller (21) rotatably disposed between the two support plates (19). The lower rotating roller (21) is located directly below the upper rotating roller (20). A rotating motor (22) for driving the lower rotating roller (21) is provided on the side wall of one of the support plates (19). The ends of the upper rotating roller (20) and the lower rotating roller (21) away from the rotating motor (22) both rotatably pass through the support plate (19). A passive gear (23) and a driving gear (24) are respectively sleeved on the outer side of the upper rotating roller (20) and the lower rotating roller (21). The passive gear (23) and the driving gear (24) are meshed.

6. A slitting device for producing automotive color-changing film according to claim 5, characterized in that: The lower rotating roller (21) is fitted with a transmission gear (30) at the end near the drive gear (24), and the winding gear (29) and the transmission gear (30) are connected by a chain (31).

7. A slitting device for producing automotive color-changing film according to claim 1, characterized in that: A fixing ring (41) is fitted on the outer side of the crossbar (39) near the connecting seat (32), and a locking frustum (42) is connected to its end. The outer diameter of the locking frustum (42) decreases from the end near the fixing ring (41) to the other end. An unlocking frustum (43) is slidably provided on the outer side of the crossbar (39) between the fixing ring (41) and the locking frustum (42). The outer diameter of the unlocking frustum (43) increases from the end near the fixing ring (41) to the other end. A movable groove (44) communicating with the supporting sleeve (33) is opened at the end of the connecting seat (32) near the supporting sleeve (33). Two mounting grooves (45) are symmetrically provided on the groove wall of the movable groove (44). 5) A limiting ring (46) is provided at the groove opening. A through hole (47) communicating with the movable groove (44) is provided on the outer side wall of the connecting seat (32). The same slide rod (48) is slidably provided between the through hole (47) and the limiting ring (46). A support ring (49) is sleeved on the outer side of the slide rod (48) near the limiting ring (46). A support spring (50) is sleeved on the outer side of the slide rod (48). The two ends of the support spring (50) are respectively abutted against the bottom of the mounting groove (45) and the support ring (49). A one-way limiting block (51) is provided at the end of the slide rod (48) facing the movable groove (44). The side of the one-way limiting block (51) facing the locking truncated cone (42) is set as an inclined sliding surface (52).

8. A slitting device for producing automotive color-changing film according to claim 7, characterized in that: A magnetic ring (53) is embedded in one end of the locking truncated cone (42) facing the unlocking truncated cone (43), and a magnetic ring (54) that repels the magnetic ring (53) is embedded in one end of the unlocking truncated cone (43) facing the locking truncated cone (42); an abutment ring (55) is provided at one end of the support sleeve (33) away from the connecting seat (32), and the end of the crossbar (39) away from the connecting seat (32) moves through the abutment ring (55) and is connected to a handle; a locking ring is fitted on the outer side of the end of the crossbar (39) away from the connecting seat (32) and placed inside the support sleeve (33).

Images