Slitting device for improving slitting precision and flatness of color changing film

Abstract

The invention relates to the technical field of automobile film roll dividing and edge cutting, in particular to a slitting device for improving color changing film slitting precision and flatness, which comprises a mounting seat, two supporting plates are arranged at the top of the mounting seat, an auxiliary mechanism, a conveying mechanism and a mounting strip are sequentially arranged between the two supporting plates, and a sliding groove is formed in the bottom side of the mounting strip. A transmission lead screw is rotationally arranged in the sliding groove, a sliding block is in threaded engagement with the transmission lead screw, a cutting knife is arranged on the top side of the sliding block through a reciprocating assembly, a receding strip hole communicating with the sliding groove is formed in the top side of the mounting strip, a servo motor is arranged on the side wall of the supporting plate, and an output shaft of the servo motor rotationally penetrates into the sliding groove. The servo motor drives the transmission lead screw to rotate to be meshed with the sliding block and drives the cutting knife to move horizontally, and under the cooperation of the reciprocating assembly, the cutting knife moves vertically in a reciprocating mode and is matched with the cutting force of the cutting knife to cut the color changing film.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive film slitting and trimming, and particularly relates to a slitting device for improving the slitting accuracy and flatness of color-changing films. Background Art

[0002] With the increasing demand for automotive personalization and protection, the color-changing film market has gradually emerged, and the demand for related equipment for color-changing films is also increasing. The production process of color-changing films generally includes mixing, pressing, cooling and curing, slitting, and quality inspection. Among them, the slitting process is to divide the color-changing film into color-changing films of a certain size, so as to facilitate the fitting of the vehicle. Since the width dimension of the color-changing film has been determined according to requirements during the cooling and curing process, only the length of the color-changing film is slit during slitting. In the prior art, the slitting device for color-changing films can efficiently complete the cutting and winding tasks of color-changing films.

[0003] When the existing color-changing film slitting device is in use, the color-changing film is conveyed by conveying rollers and wound and stored by a winding roller. After the winding roller winds an appropriate length of the color-changing film, a cutting knife is used to cut the color-changing film for subsequent unified storage and transportation.

[0004] However, the cutting of the slitting device in the prior art only relies on the blade of the cutter body itself to passively meet the cutting, and the position of the blade of the cutter body is often fixedly set, resulting in a fixed position of the blade for cutting the color-changing film, making the position of the blade prone to bluntness, and easily causing jamming during the cutting process due to the bluntness of the blade, affecting the cutting effect of the color-changing film. Summary of the Invention

[0005] The purpose of the present invention is to provide a slitting device for improving the slitting accuracy and flatness of color-changing films, and solve the problem that the cutting of the slitting device in the prior art only relies on the blade of the cutter body itself to passively meet the cutting, and the position of the blade of the cutter body is often fixedly set, resulting in a fixed position of the blade for cutting the color-changing film, making the position of the blade prone to bluntness and affecting the cutting effect of the color-changing film.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions: A slitting device for improving the slitting accuracy and flatness of a color-changing film comprises a mounting seat, two support plates are symmetrically arranged at the left and right ends of the top of the mounting seat, an auxiliary mechanism, a conveying mechanism and a mounting strip are arranged in sequence from back to front between the two support plates, a sliding groove is provided on the bottom side of the mounting strip along its path, a transmission screw is rotatably arranged in the sliding groove, a slider slidably arranged in the sliding groove is threadedly engaged on the transmission screw, a cutting knife is provided on the top side of the slider through a reciprocating assembly, a clearance bar hole connected to the sliding groove is provided on the top side of the mounting strip along its path, so that the cutting knife can pass through the clearance bar hole to pass through the sliding groove, a servo motor is provided on the side wall of one of the support plates, the output shaft of the servo motor rotates and passes into the sliding groove and is connected to one end of the transmission screw, and a winding mechanism is provided at the front end of the top side of the mounting seat.

[0007] A further technical solution is that the bottom of the sliding groove is arranged in a wave shape, and the reciprocating assembly includes a reciprocating telescopic rod, which is vertically arranged on the top of the slider, and the end of the reciprocating telescopic rod away from the slider is connected to a driving block slidably arranged in the sliding groove, and movable wheels are rotatably provided at both ends of the driving block. A support spring is provided on the outer side of the reciprocating telescopic rod, and the two ends of the support spring are respectively connected to the slider and the driving block, and the support spring is in a compressed state so that the movable wheel rolls in contact with the bottom of the groove arranged in a wave shape.

[0008] A further technical solution is that an auxiliary screw is rotatably provided between the two support plates and located above the mounting strip, an auxiliary block is threadedly engaged with the outer side of the auxiliary screw, a vertically arranged auxiliary telescopic rod is provided on the bottom side of the auxiliary block, the bottom end of the auxiliary telescopic rod is connected to the top end of the cutting knife through a connecting block, a tension spring is sleeved on the outer side of the auxiliary telescopic rod, and the tension spring is in a stretched state, the transmission screw rotates at one end away from the servo motor, passes through the mounting strip and the support plate, and its end is sleeved on the cutting pulley, the auxiliary screw rotates at one end away from the servo motor, passes through the support plate, and its end is sleeved on the auxiliary pulley, and the cutting pulley and the auxiliary pulley are connected by a cutting belt drive.

[0009] A further technical solution is that the conveying mechanism includes an upper rotating roller and a lower rotating roller, both of which are rotatably arranged between two support plates, and the lower rotating roller is located directly below the upper rotating roller, and a driving motor for driving the lower rotating roller to rotate is provided on the side wall of one of the support plates, and the ends of the upper rotating roller and the lower rotating roller away from the driving motor both rotate through the support plate, and a passive gear and a driving gear are respectively sleeved on the outer sides of the upper rotating roller and the lower rotating roller, and the passive gear and the driving gear are meshed for transmission.

[0010] A further technical solution is that the winding mechanism includes a rotating rod, a winding roller is sleeved on the outer side of the rotating rod, a vertical plate is vertically arranged on the end close to the driving gear on the top side of the mounting seat, one end of the rotating rod is rotatably connected to the vertical plate and rotates through the vertical plate, a winding pulley is connected to the outer side of the end of the rotating rod that rotates through the vertical plate, a driving pulley is sleeved on the end of the lower rotating roller close to the driving gear, and the winding pulley and the driving pulley are connected through a winding belt drive.

[0011] A further technical solution is that a sliding through hole is opened inside the rotating rod along its axis, and four groups of movable holes are arranged in a linear array on the outer side of the rotating rod along its axis, each group of movable holes is arranged in a circular array around the outer wall of the rotating rod, and the movable holes are connected to the sliding through hole, and an inner limit ring and an outer limit ring are respectively provided on the inner walls at both ends of the movable hole, and the same limit rod is slidably connected inside the inner limit ring and the outer limit ring, a support ring is fixedly sleeved on the outer side of one end of the limit rod close to the inner limit ring, a limit spring is sleeved on the outer side of the limit rod, and both ends of the limit spring are fixedly connected to the support ring and the outer limit ring respectively, so that the end of the limit rod away from the sliding through hole is placed in the movable hole, and the end of the limit rod close to the sliding through hole is slidably placed in the sliding through hole, and a driving component for driving the limit rod to slide toward the outside of the rotating rod is provided in the sliding through hole.

[0012] A further technical solution is that the driving assembly includes a driving screw rod, which is rotatably arranged inside the sliding through hole, and four pushing cylinders are threadedly engaged on the outer side of the driving screw rod, and the four pushing cylinders correspond to four groups of movable holes respectively, and an extrusion platform in a truncated cone shape is provided at one end of the pushing cylinder close to the corresponding group of movable holes, and the extrusion platform is movably sleeved on the outer side of the driving screw rod, and the end of the driving screw rod away from the winding pulley rotates to pass through the sliding through hole and is connected to a handle.

[0013] A further technical solution is that a limit groove is provided on the inner wall of the sliding through hole along its axis, and a limit block matched with the limit groove is provided on the outer side of the pushing cylinder.

[0014] A further technical solution is that the auxiliary mechanism comprises auxiliary rollers, and the auxiliary rollers are rotatably arranged in a linear array between the two support plates.

[0015] Compared with the prior art, the present invention has the following beneficial effects: When it is necessary to cut the color-changing film, the servo motor is started to drive the transmission screw to rotate, and the transmission screw rotates and engages with the slider, thereby driving the cutting knife to move horizontally along the screw. At this time, with the cooperation of the reciprocating assembly, the cutting knife moves vertically and reciprocates horizontally at the same time, so that when the cutting knife cuts the color-changing film, the cutting knife moves vertically and reciprocates and cooperates with its own cutting force to complete the cutting of the color-changing film, avoiding the cutting knife relying solely on its own blade to passively cater to the cutting when cutting the color-changing film, which causes the cutting knife blade to easily stall, affecting the cutting accuracy and flatness of the color-changing film. Brief Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of a slitting device for improving the slitting accuracy and flatness of a color-changing film according to the present invention.

[0017] Figure 2 It is a front view sectional view of a slitting device for improving the slitting accuracy and flatness of a color-changing film according to the present invention.

[0018] Figure 3 It is a schematic partial sectional top view structure diagram of the mounting strip according to the present invention.

[0019] Figure 4 According to the present invention Figure 2 The enlarged schematic diagram at position A.

[0020] Figure 5 According to the present invention Figure 2 The enlarged schematic diagram at position B.

[0021] Figure 6 It is a front view sectional view of the rotating rod according to the present invention.

[0022] Figure 7 It is a sectional view of another view of the rotating rod according to the present invention.

[0023] Figure 8 It is a left view sectional view of the rotating rod according to the present invention.

[0024] Figure 9 According to the present invention Figure 6 The enlarged schematic diagram at position C.

[0025] Figure 10 According to the present invention Figure 7 The enlarged schematic diagram at position D.

[0026] Reference Signs: 1 - mounting base, 2 - support plate, 3 - mounting strip, 4 - sliding groove, 5 - transmission lead screw, 6 - slider, 7 - cutting knife, 8 - relief strip hole, 9 - servo motor, 11 - bottom of the groove, 12 - reciprocating telescopic rod, 13 - driving block, 14 - movable wheel, 15 - support spring, 16 - auxiliary lead screw, 17 - auxiliary block, 18 - auxiliary telescopic rod, 19 - tension spring, 20 - connecting block, 21 - cutting pulley, 22 - auxiliary pulley, 23 - cutting belt, 24 - upper rotating roller, 25 - lower rotating roller, 27 - passive gear, 28 - active gear, 29 - rotating rod, 31 - winding roller, 32 - vertical plate, 33 - winding pulley, 34 - driving pulley, 35 - winding belt, 36 - sliding through hole, 37 - movable hole, 38 - inner limiting ring, 39 - outer limiting ring, 41 - limiting rod, 42 - support ring, 43 - limiting spring, 44 - driving lead screw, 45 - pushing cylinder, 46 - extrusion table, 47 - handle, 48 - limiting groove, 49 - limiting block, 51 - auxiliary roller. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] Example 1 See also Figures 1 to 5 The present invention shows a slitting device for improving the slitting accuracy and flatness of the color-changing film, comprising a mounting seat 1, two support plates 2 are symmetrically arranged at the left and right ends of the top of the mounting seat 1, an auxiliary mechanism, a conveying mechanism and a mounting strip 3 are arranged in sequence from back to front between the two support plates 2, a sliding groove 4 is opened on the bottom side of the mounting strip 3 along its path, a transmission screw 5 is rotatably arranged in the sliding groove 4, a slider 6 slidably arranged in the sliding groove 4 is threadedly engaged on the transmission screw 5, a cutting knife 7 is provided on the top side of the slider 6 through a reciprocating assembly, a clearance bar hole 8 connected to the sliding groove 4 is opened on the top side of the mounting strip 3 along its path, so that the cutting knife 7 can pass through the clearance bar hole 8 to pass through the sliding groove 4, a servo motor 9 is provided on the side wall of one of the support plates 2, the output shaft of the servo motor 9 rotates to pass into the sliding groove 4 and is connected to one end of the transmission screw 5, and a winding mechanism is provided at the front end of the top side of the mounting seat 1.

[0029] Among them, by setting a control console on the outer side of the support plate 2 to control the operation of the conveying mechanism and the servo motor 9, it is common technical knowledge for technical personnel in this field, and technical personnel in this field can directly obtain the corresponding installation relationship and structure based on common knowledge, which will not be repeated here.

[0030] Specifically, the staff will pass the end of the color-changing film to be cut through the auxiliary mechanism and the conveying mechanism in turn, and finally fix its end on the winding mechanism. The auxiliary mechanism, the conveying mechanism and the winding mechanism cooperate to wind and roll the color-changing film. When the winding mechanism has rolled up the color-changing film to an appropriate length, the conveying mechanism and the receipt mechanism stop working, and the servo motor 9 is started to drive the transmission screw 5 to rotate. The transmission screw 5 rotates and engages with the slider 6, thereby driving the cutting knife 7 to move horizontally along the screw. At this time, with the cooperation of the reciprocating assembly, the cutting knife 7 moves vertically and reciprocates horizontally while moving vertically, so that when the cutting knife 7 cuts the color-changing film, the cutting knife moves vertically and reciprocates and cooperates with its own cutting force to complete the cutting of the color-changing film, avoiding the cutting knife 7 relying solely on its own blade to passively cater to the cutting when cutting the color-changing film, which causes the blade of the cutting knife 7 to be easily frustrated, affecting the cutting accuracy and flatness of the color-changing film.

[0031] As a preferred embodiment, see Figures 1 to 5As shown, the bottom 11 of the sliding groove 4 is arranged in a wave shape, and the reciprocating assembly includes a reciprocating telescopic rod 12, which is vertically arranged on the top of the slider 6, and the end of the reciprocating telescopic rod 12 away from the slider 6 is connected to a driving block 13 slidably arranged in the sliding groove 4, and movable wheels 14 are rotatably provided at both ends of the driving block 13. A support spring 15 is sleeved on the outer side of the reciprocating telescopic rod 12, and the two ends of the support spring 15 are respectively connected to the slider 6 and the driving block 13, and the support spring 15 is in a compressed state, so that the movable wheel 14 is in rolling contact with the bottom 11 of the groove arranged in a wave shape.

[0032] Specifically, when the transmission screw 5 rotates and engages with the slider 6, the slider 6 drives the reciprocating telescopic rod 12 to move, the reciprocating telescopic rod 12 drives the driving block 13 to move, and the driving block 13 drives the movable wheel 14 to move along the sliding groove 4. Due to the action of the supporting spring 15, the movable wheel 14 is always in rolling contact with the wave-shaped groove bottom 11, so that when the movable wheel 14 moves along the sliding groove 4, it will make a vertical reciprocating motion along the wave-shaped groove bottom 11. When the driving block 13 moves along the sliding groove 4, the driving block 13 will move vertically back and forth in cooperation with the movable wheel 14 and the wave-shaped groove bottom 11, and finally drive the cutting knife 7 to move horizontally while making a vertical reciprocating motion.

[0033] As a preferred embodiment, see Figures 1 to 5 It is shown that an auxiliary screw rod 16 is rotatably provided between the two support plates 2 and located above the mounting strip 3. An auxiliary block 17 is threadedly engaged on the outer side of the auxiliary screw rod 16. A vertically arranged auxiliary telescopic rod 18 is provided on the bottom side of the auxiliary block 17. The bottom end of the auxiliary telescopic rod 18 is connected to the top end of the cutting knife 7 through a connecting block 20. A tension spring 19 is sleeved on the outer side of the auxiliary telescopic rod 18, and the tension spring 19 is in a stretched state. The end of the transmission screw rod 5 away from the servo motor 9 rotates to pass through the mounting strip 3 and the support plate 2, and the end portion thereof is sleeved on the cutting pulley 21. The end of the auxiliary screw rod 16 away from the servo motor 9 rotates to pass through the support plate 2, and the end portion thereof is sleeved on the auxiliary pulley 22. The cutting pulley 21 and the auxiliary pulley 22 are connected through a cutting belt 23.

[0034] Specifically, with the cooperation of the cutting pulley 21, the auxiliary pulley 22 and the cutting belt 23, while the servo motor 9 drives the transmission lead screw 5 to rotate, it will also drive the auxiliary lead screw 16 to rotate. The rotation of the auxiliary lead screw 16 is in threaded engagement with the auxiliary block 17, driving the auxiliary block 17 to move along the auxiliary lead screw 16. At the same time, under the action of the tension spring 19, the cutting knife 7 is held, improving the stability of the rolling contact between the movable wheel 14 and the wavy bottom 11 of the groove. Under the action of the auxiliary telescopic rod 18, the cutting knife 7 can only move vertically back and forth relative to the connecting block 20. Through the cooperation of the above structures, the stability of the cutting knife 7 moving vertically back and forth while moving horizontally is further improved, ensuring the cutting effect of the cutting knife 7 on the color-changing film.

[0035] Embodiment 2 On the basis of the foregoing embodiment, refer to Figure 1 、 Figures 5 to 10 It is shown that the conveying mechanism includes an upper rotating roller 24 and a lower rotating roller 25. Both the upper rotating roller 24 and the lower rotating roller 25 are rotatably arranged between the two support plates 2, and the lower rotating roller 25 is directly below the upper rotating roller 24. A driving motor for driving the lower rotating roller 25 to rotate is provided on the side wall of one of the support plates 2. One end of the upper rotating roller 24 and the lower rotating roller 25 away from the driving motor rotates through the support plate 2, and a passive gear 27 and an active gear 28 are respectively sleeved on the outer sides of the upper rotating roller 24 and the lower rotating roller 25, and the passive gear 27 and the active gear 28 are in meshing transmission.

[0036] Specifically, when transporting the color-changing film, the color-changing film is passed through between the upper rotating roller 24 and the lower rotating roller 25. By controlling the driving motor to work, the lower rotating roller 25 is driven to rotate. Under the action of the meshing transmission between the passive gear 27 and the active gear 28, the upper rotating roller 24 and the lower rotating roller 25 rotate in opposite directions, causing the color-changing film to move towards the winding mechanism. It should be noted that, according to the actual thickness of the color-changing film, the distance between the upper rotating roller 24 and the lower rotating roller 25 can be set to ensure that when the upper rotating roller 24 and the lower rotating roller 25 rotate in opposite directions and the color-changing film moves towards the winding mechanism, the color-changing film will not be overly squeezed and damaged, and at the same time, it will not affect the transmission of the color-changing film due to the excessive distance between the upper rotating roller 24 and the lower rotating roller 25.

[0037] As a preferred implementation manner, refer to Figure 1 、 Figures 5 to 10As shown, the winding mechanism includes a rotating rod 29, a winding roller 31 is sleeved on the outer side of the rotating rod 29, a vertical plate 32 is vertically arranged on the end of the top side of the mounting seat 1 close to the driving gear 28, one end of the rotating rod 29 is rotatably connected to the vertical plate 32 and rotates through the vertical plate 32, a winding pulley 33 is connected to the outer side of the end of the rotating rod 29 that rotates through the vertical plate 32, a driving pulley 34 is sleeved on the end of the lower rotating roller 25 close to the driving gear 28, and the winding pulley 33 is connected to the driving pulley 34 through a winding belt 35.

[0038] Specifically, a winding pulley 33 is arranged to be connected with a driving pulley 34 through a winding belt 35. When the driving motor drives the lower rotating roller 25 and the upper rotating roller 24 to transmit the color-changing film, the rotating rod 29 is also driven to rotate. The winding roller 31 mounted on the outer side of the rotating rod 29 follows the rotation to wind up the color-changing film, thereby avoiding the need to set up a separate driving mechanism to drive the winding roller 31 to rotate to wind up the color-changing film, which increases the cost.

[0039] As a preferred embodiment, see Figures 5 to 10 As shown, a sliding through hole 36 is opened inside the rotating rod 29 along its axis, and four groups of movable holes 37 are arranged in a linear array on the outer side of the rotating rod 29 along its axis. Each group of movable holes 37 is arranged in a ring array around the outer wall of the rotating rod 29, and the movable holes 37 are connected to the sliding through hole 36. An inner limit ring 38 and an outer limit ring 39 are respectively arranged on the inner walls of the two ends of the movable hole 37. The inner limit ring 38 and the outer limit ring 39 are slidably connected to the same limit rod 41, and the limit rod 41 is close to the inner wall of the movable hole 37. A support ring 42 is fixedly sleeved on the outer side of one end of the inner limit ring 38, and a limit spring 43 is sleeved on the outer side of the limit rod 41. The two ends of the limit spring 43 are respectively fixedly connected to the support ring 42 and the outer limit ring 39, so that the end of the limit rod 41 away from the sliding through hole 36 is placed in the movable hole 37, and the end of the limit rod 41 close to the sliding through hole 36 is slidably placed in the sliding through hole 36. A driving component for driving the limit rod 41 to slide toward the outside of the rotating rod 29 is provided in the sliding through hole 36.

[0040] Specifically, when it is necessary to sleeved the winding roller 31 on the outside of the rotating rod 29 for winding and rewinding the color-changing film, the control driving assembly does not operate on the limiting rod 41, so that the end of the limiting rod 41 away from the sliding through hole 36 is placed in the movable hole 37 and slides in the sliding through hole 36. Then, the inner hole of the winding roller 31 is aligned with the rotating rod 29 and pushed in, so that the winding roller 31 is sleeved on the outside of the rotating rod 29. By controlling the driving assembly to drive the limiting rod 41 to slide towards the outside of the rotating rod 29, the end of the limiting rod 41 away from the sliding through hole 36 penetrates through the corresponding movable hole 37 and abuts against the inner hole wall of the winding roller 31, so as to realize the fixation of the winding roller 31. When the winding roller 31 winds and rewinds a suitable length of color-changing film and needs to replace the winding roller 31, only need to control the driving assembly not to operate on the limiting rod 41, so that the limiting rod 41 is under the action of the limiting spring 43, and the end of the limiting rod 41 away from the sliding through hole 36 is placed in the movable hole 37 and slides in the sliding through hole 36, and no longer abuts against the inner hole wall of the winding roller 31, then the winding roller 31 can be disassembled. Through the above structure, it is convenient to quickly disassemble and assemble the winding roller 31.

[0041] As a preferred embodiment, refer to Figures 5 to 10 As shown, the driving assembly includes a driving lead screw 44, the driving lead screw 44 is rotatably arranged inside the sliding through hole 36, and four pushing cylinders 45 are threadedly engaged on the outside of the driving lead screw 44. The four pushing cylinders 45 respectively correspond to four groups of movable holes 37, and a pressing table 46 arranged in a frustum shape is provided at one end of the pushing cylinder 45 close to the corresponding group of movable holes 37, and the pressing table 46 is movably sleeved on the outside of the driving lead screw 44. The end of the driving lead screw 44 away from the winding pulley 33 rotates out of the sliding through hole 36 and is connected with a handle 47.

[0042] Specifically, by rotating the handle 47 to drive the driving lead screw 44 to rotate, the pushing cylinder 45 is engaged with the driving lead screw 44, and the pushing cylinder 45 moves along the driving lead screw 44 towards the corresponding group of movable holes 37, driving the pressing table 46 to move towards the corresponding group of movable holes 37. The pressing table 46 presses the end of the limiting rod 41 placed in the sliding through hole 36, so that the end of the limiting rod 41 away from the sliding through hole 36 penetrates through the corresponding movable hole 37 and abuts against the inner hole wall of the winding roller 31, so as to realize the fixation of the winding roller 31. On the contrary, rotating the handle 47 in the reverse direction drives the driving lead screw 44 to rotate in the reverse direction, the pushing cylinder 45 is engaged with the driving lead screw 44, and the pushing cylinder 45 moves along the driving lead screw 44 towards the direction away from the corresponding group of movable holes 37, so that the pressing table 46 does not press the end of the limiting rod 41 placed in the sliding through hole 36. Under the action of the limiting spring 43 and the support ring 42, the end of the limiting rod 41 away from the sliding through hole 36 is placed in the movable hole 37 and slides in the sliding through hole 36, and no longer abuts against the inner hole wall of the winding roller 31.

[0043] As a preferred embodiment, refer to Figures 5 to 10 As shown, a limiting groove 48 is axially formed on the inner wall of the sliding through hole 36, and a limiting block 49 adapted to the limiting groove 48 is provided on the outer side of the pushing cylinder 45. Specifically, by providing the limiting groove 48 and the limiting block 49, the pushing cylinder 45 is prevented from rotating along with the driving lead screw 44.

[0044] Embodiment 4 On the basis of the foregoing embodiments, refer to Figure 1 As shown, the auxiliary mechanism includes auxiliary rollers 51 which are rotatably arranged in a linear array between two support plates 2. By providing the auxiliary rollers 51, the color-changing film can be supported.

[0045] Although the present invention has been described herein with reference to a number of illustrative embodiments of the present invention, it should be understood that those skilled in the art can devise many other modifications and embodiments that will fall within the scope of the principles of the present application and the spirit thereof. More specifically, within the scope of the present application disclosure, the accompanying drawings, and the claims, various variations and improvements can be made to the components and / or layout of the subject combination layout. In addition to the variations and improvements made to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. A slitting device for improving the slitting precision and flatness of a color-changing film, comprising a mounting base (1), and two support plates (2) are symmetrically arranged at the left and right ends of the top of the mounting base (1), and it is characterized in that: An auxiliary mechanism, a conveying mechanism and a mounting bar (3) are sequentially arranged between the two support plates (2) from back to front. A sliding groove (4) is provided on the bottom side of the mounting bar (3) along its path. A transmission screw (5) is rotatably arranged in the sliding groove (4). A slider (6) is threadedly engaged on the transmission screw (5) and is slidably arranged in the sliding groove (4). A cutting knife (7) is arranged on the top side of the slider (6) through a reciprocating component. A clearance bar hole (8) connected to the sliding groove (4) is provided on the top side of the mounting bar (3) along its path so that the cutting knife (7) passes through the clearance bar hole (8) and passes out of the sliding groove (4). A servo motor (9) is arranged on the side wall of one of the support plates (2). The output shaft of the servo motor (9) rotates and passes into the sliding groove (4) and is connected to one end of the transmission screw (5). A winding mechanism is arranged at the front end of the top side of the mounting seat (1).

2. The slitting device for improving the slitting precision and flatness of the color-changing film according to claim 1, wherein: The bottom (11) of the sliding groove (4) is arranged in a wave shape. The reciprocating assembly comprises a reciprocating telescopic rod (12). The reciprocating telescopic rod (12) is vertically arranged on the top of the slider (6). The end of the reciprocating telescopic rod (12) away from the slider (6) is connected to a driving block (13) slidably arranged in the sliding groove (4). Both ends of the driving block (13) are rotatably provided with movable wheels (14). A support spring (15) is sleeved on the outer side of the reciprocating telescopic rod (12). Both ends of the support spring (15) are respectively connected to the slider (6) and the driving block (13). The support spring (15) is in a compressed state so that the movable wheel (14) is in rolling contact with the bottom (11) of the groove arranged in a wave shape.

3. The slitting device for improving the slitting accuracy and flatness of the color-changing film according to claim 2, wherein: An auxiliary screw rod (16) is rotatably provided between the two support plates (2) and located above the mounting strip (3). An auxiliary block (17) is threadedly engaged on the outer side of the auxiliary screw rod (16). A vertically arranged auxiliary telescopic rod (18) is provided on the bottom side of the auxiliary block (17). The bottom end of the auxiliary telescopic rod (18) is connected to the top end of the cutting knife (7) through a connecting block (20). A tension spring (19) is sleeved on the outer side of the auxiliary telescopic rod (18), and the tension spring (19) is in a tensioned state. The end of the transmission screw rod (5) away from the servo motor (9) rotates through the mounting strip (3) and the support plate (2), and the end of the transmission screw rod (5) is sleeved on the cutting pulley (21). The end of the auxiliary screw rod (16) away from the servo motor (9) rotates through the support plate (2), and the end of the auxiliary screw rod (16) is sleeved on the auxiliary pulley (22). The cutting pulley (21) and the auxiliary pulley (22) are connected by a cutting belt (23).

4. A slitting device for improving the slitting accuracy and flatness of a color-changing film according to claim 1, characterized in that: The conveying mechanism includes an upper rotating roller (24) and a lower rotating roller (25). Both the upper rotating roller (24) and the lower rotating roller (25) are rotatably arranged between the two support plates (2), and the lower rotating roller (25) is located directly below the upper rotating roller (24). A driving motor for driving the lower rotating roller (25) to rotate is provided on the side wall of one of the support plates (2). One end of the upper rotating roller (24) and the lower rotating roller (25) away from the driving motor direction rotatably penetrates through the support plate (2), and a passive gear (27) and a driving gear (28) are respectively sleeved on the outer sides of the upper rotating roller (24) and the lower rotating roller (25), and the passive gear (27) and the driving gear (28) are in meshing transmission.

5. A slitting device for improving the slitting accuracy and flatness of a color-changing film according to claim 4, characterized in that: The winding mechanism includes a rotating rod (29). A winding roller (31) is sleeved on the outer side of the rotating rod (29). One end of the mounting seat (1) near the driving gear (28) on the top side is provided with a vertically arranged vertical plate (32). One end of the rotating rod (29) is rotatably connected to the vertical plate (32) and rotatably penetrates through the vertical plate (32). A winding pulley (33) is connected to the outer side of the end of the rotating rod (29) that rotatably penetrates through the vertical plate (32). A driving pulley (34) is sleeved on the end of the lower rotating roller (25) near the driving gear (28). The winding pulley (33) and the driving pulley (34) are in transmission connection through a winding belt (35).

6. The slitting device for improving the slitting accuracy and flatness of the color-changing film according to claim 5, characterized in that: A sliding through hole (36) is axially formed inside the rotating rod (29). Four groups of movable holes (37) are linearly arranged on the outer side of the rotating rod (29) along its axis. Each group of movable holes (37) is annularly arranged around the outer wall of the rotating rod (29), and the movable holes (37) are all communicated with the sliding through hole (36). Inner limiting rings (38) and outer limiting rings (39) are respectively provided on the inner walls at both ends of the movable holes (37). The same limiting rod (41) is slidably connected inside the inner limiting ring (38) and the outer limiting ring (39). A support ring (42) is fixedly sleeved on the outer side of one end of the limiting rod (41) near the inner limiting ring (38). A limiting spring (43) is sleeved on the outer side of the limiting rod (41). Both ends of the limiting spring (43) are fixedly connected to the support ring (42) and the outer limiting ring (39) respectively, so that one end of the limiting rod (41) away from the sliding through hole (36) is placed inside the movable hole (37), and one end of the limiting rod (41) near the sliding through hole (36) is slidably placed inside the sliding through hole (36). A driving component for driving the limiting rod (41) to slide towards the outer side of the rotating rod (29) is provided inside the sliding through hole (36).

7. A slitting device for improving the slitting accuracy and flatness of a color-changing film according to claim 6, characterized in that: The driving assembly includes a driving lead screw (44) rotatably disposed inside the sliding through hole (36). Four pushing cylinders (45) are threadedly engaged with the outer side of the driving lead screw (44). The four pushing cylinders (45) respectively correspond to four groups of moving holes (37). One end of each pushing cylinder (45) close to the corresponding group of moving holes (37) is provided with an extrusion table (46) in a frustum shape. The extrusion table (46) is movably sleeved on the outer side of the driving lead screw (44). One end of the driving lead screw (44) away from the winding pulley (33) rotatably passes through the sliding through hole (36) and is connected with a handle (47).

8. A slitting device for improving the slitting accuracy and flatness of a color-changing film according to claim 7, characterized in that: A limiting groove (48) is axially formed on the inner wall of the sliding through hole (36). A limiting block (49) adapted to the limiting groove (48) is provided on the outer side of the pushing cylinder (45).

9. A slitting device for improving the slitting accuracy and flatness of a color-changing film according to claim 1, characterized in that: The auxiliary mechanism includes an auxiliary roller (51). The auxiliary roller (51) is rotatably arranged in a linear array between the two support plates (2).

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