A cutting device for a gummed paper

Abstract

The application relates to a cutting device for a blueprint paper, and relates to the technical field of cutting. The cutting device comprises a cutter, a paper roll with the blueprint paper wound thereon, a cutting platform, a cutting head, and a mechanical hand. The cutting platform is slidably arranged on a machine body and used for clamping the blueprint paper. The cutting head is used for cutting the blueprint paper. The cutting platform is close to the cutter and makes the blueprint paper move into the cutting platform. After the cutting platform clamps the blueprint paper, the cutting platform is away from the cutter. The cutting head cuts the blueprint paper to obtain the blueprint paper with a required size, and the mechanical hand bonds the blueprint paper to a plastic workpiece. The cutting platform is close to the paper roll, one end of the blueprint paper is extended into the cutting platform, the cutting platform is away from the cutter and the paper roll after clamping one end of the blueprint paper, the blueprint paper is pulled out, the cutting head cuts the blueprint paper, the cutting platform releases the clamping of the blueprint paper, and the mechanical hand can grasp the blueprint paper and bond the blueprint paper to the plastic workpiece, so that the spraying quality and efficiency of the plastic workpiece are improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of cutting, in particular to a masking paper cutting device. BACKGROUND

[0002] After a plastic workpiece is injection molded, a paint spraying process needs to be performed. In order to avoid the influence of the paint surface on some key positions, masking paper needs to be attached to the positions for paint spraying shielding.

[0003] A traditional operation mode highly depends on manual operation of masking paper cutting, positioning and attaching by an operator. Manual operation leads to size difference of the cutting, which easily causes paint leakage or blurred color separation area, resulting in shielding failure and rework. Manual operation also easily contaminates the adhesive surface of the masking paper, affecting the attaching quality. Therefore, a masking paper cutting device capable of more accurate and efficient operation is needed to cooperate with a robot, so that the masking paper can be accurately attached to the plastic workpiece, thereby improving the paint spraying quality and efficiency of the plastic workpiece. SUMMARY

[0004] In order to improve the paint spraying quality and efficiency of the plastic workpiece, the application provides a masking paper cutting device.

[0005] The application provides a masking paper cutting device, which adopts the following technical scheme:

[0006] The masking paper cutting device comprises:

[0007] A cutter is arranged on the machine body and is provided with a paper roll on which the masking paper is wound.

[0008] A cutting platform is arranged on the machine body and is used to clamp the masking paper and is slidable in a direction close to or away from the cutter.

[0009] A cutting head is used to cut the masking paper. The cutting platform is close to the cutter and moves the masking paper into the cutting platform. After the cutting platform clamps the masking paper, the cutting platform is away from the cutter. The cutting head cuts the masking paper to obtain the masking paper of a required size, and a robot is used to bond the masking paper to the plastic workpiece.

[0010] By adopting the above technical scheme, the paper roll is installed on the cutter. The cutting platform is close to the paper roll, so that one end of the masking paper is extended into the cutting platform. After the cutting platform clamps one end of the masking paper, the cutting platform is away from the cutter and the paper roll, so that the masking paper is pulled out. The cutting head cuts the masking paper. The cutting platform releases the clamping of the masking paper. The robot can grasp the masking paper and bond it to the plastic workpiece, thereby improving the paint spraying quality and efficiency of the plastic workpiece.

[0011] Optionally, the device further comprises a bonding paper arranged on the cutting platform and the cutting head and bonded to the adhesive surface to facilitate removal of the masking paper.

[0012] By adopting the technical scheme, the adhesive paper is fixedly installed on the cutting platform and the cutting head, so that when the embossed paper is clamped, the adhesive surface is bonded to the adhesive paper, after cutting is completed, the mechanical hand adsorbs and grabs the upper surface of the embossed paper, the mechanical hand pulls the embossed paper to move upward and separate from the adhesive paper, the adhesive paper can reduce damage to the adhesive surface caused by clamping, the adhesive paper and the adhesive surface are convenient to separate, and the subsequent mechanical hand is convenient to grab and convey the adhesive paper, so that the precision and firmness of the embossed paper bonded to the plastic workpiece are improved, and the plastic workpiece spraying quality and efficiency are improved.

[0013] Optionally, the cutter comprises:

[0014] A plurality of supporting wheels are rotationally arranged on the machine body; the paper roll is placed on the plurality of supporting wheels;

[0015] A guide roller is rotationally installed on the cutter and is used for guiding the output embossed paper and making the adhesive surface of the embossed paper face downward;

[0016] A tensioning assembly is positioned on the inner circle of the paper roll under the action of elastic force.

[0017] By adopting the technical scheme, the guide roller is used for guiding the embossed paper when the embossed paper moves, so that the embossed paper moves according to the designed path, and the adhesive surface faces downward, so that the mechanical hand is convenient to bond the embossed paper to the plastic workpiece after grabbing, so that the embossed paper is more stable and reliable in the bonding process, and the plastic workpiece spraying quality and efficiency are improved.

[0018] After the tensioning assembly is separated from the paper roll, the paper roll can be replaced, and after replacement is completed, the tensioning assembly makes the embossed paper roll in a tensioning state, so that the precision of the embossed paper after cutting is greatly improved, and the plastic workpiece spraying quality and efficiency are further improved.

[0019] Optionally, the tensioning assembly comprises:

[0020] A tensioning rod is rotationally arranged on the machine body through a rotating shaft, and the rotating shaft is parallel to the axis of the paper roll;

[0021] A rotating rod is rotationally installed on the tensioning rod at one end close to the paper roll, and the rotating direction of the rotating rod is perpendicular to the axis of the rotating shaft;

[0022] A tensioning wheel is rotationally arranged on the rotating rod at one end away from the tensioning rod, and the rotating direction of the tensioning wheel is parallel to the axis of the paper roll, the rotating rod is positioned in cooperation with the tensioning rod when the rotating rod drives the tensioning wheel to rotate to the inner side or the outer side of the paper roll;

[0023] A tension spring is connected with the tensioning rod and the machine body respectively and drives the tensioning wheel to keep close to the paper roll;

[0024] The positioning block is arranged on the machine body; after the rotating rod drives the tensioning wheel to rotate to the outside of the paper roll, the rotating rod is positioned by being pressed against the positioning block under the tension of the tension spring; after the tensioning wheel rotates to the inside of the paper roll, the tensioning wheel is positioned by being pressed against the inner circle of the paper roll under the tension of the tension spring.

[0025] By adopting the technical scheme, the paper roll is supported and positioned on the plurality of supporting wheels, the tensioning wheel is positioned by being pressed against the inner circle of the paper roll under the tension of the tension spring, the embossed paper is pulled to rotate the paper roll when the embossed paper moves, the paper roll drives the plurality of supporting wheels to rotate, the tensioning wheel generates pressure on the paper roll and the embossed paper is tensioned, so that the embossed paper is tensioned.

[0026] Meanwhile, the tensioning rod drives the tensioning wheel to be pressed against the inner circle of the paper roll, after the thickness of the paper roll becomes smaller, the tensioning rod rotates under the action of the tension spring, the tensioning rod drives the tensioning wheel to rotate at the same time, and the tensioning wheel rolls on the inner circle of the paper roll, so that the abutting point of the tensioning wheel and the inner circle of the paper roll moves upward. Compared with the vertical movement of the tensioning wheel under the action of the elastic force, the movement distance of the tensioning wheel can be reduced, the pressing force on the paper roll can be better maintained, even if the pressing force changes, the change is small, the tensioning force on the paper roll can be well maintained after the thickness of the paper roll changes, and the spraying efficiency and effect of the plastic workpiece are improved.

[0027] When the paper roll needs to be removed, the tensioning rod is pulled to drive the rotating rod to rotate and drive the tensioning wheel to rotate, so that the tensioning wheel rotates to the outside of the paper roll. The rotating rod is positioned by being clamped and installed on the tensioning rod. The rotating rod is positioned by being pressed against the positioning block under the action of the tension spring. Then the paper roll can be replaced. After replacement, the tensioning rod is pushed to rotate back, so that the tensioning wheel rotates to the inside of the paper roll. The tensioning rod is positioned by being clamped and installed on the tensioning rod. The tensioning wheel is positioned by being pressed against the inner circle of the paper roll under the tension of the tension spring. Thus, the replacement of the paper roll is realized, and the convenience during replacement of the paper roll is improved.

[0028] Meanwhile, the rotating direction of the rotating rod and the tensioning rod is perpendicular to each other. The rotating rod is clamped and installed on the rotating rod. When the tensioning wheel is pressed against the paper roll or the rotating rod is pressed against the positioning block, the tension of the tension spring can increase the friction force between the rotating rod and the tensioning rod, so as to increase the stability of the position of the rotating rod. The positioning of the rotating rod can be realized without a locking structure, and the spraying efficiency and effect of the plastic work are improved.

[0029] Optionally, the cutting platform comprises:

[0030] The moving seat is arranged on the machine body and slides towards or away from the cutter;

[0031] The fixed seat is arranged on the machine body and between the moving seat and the cutting head, and the fixed seat and the cutting head cooperate to support and cut the art paper. The two ends of the adhesive paper are arranged on the fixed seat and the moving seat, and the adhesive paper is arranged between the moving seat and the fixed seat to form a hanging buffer section. When the moving seat moves farthest from the fixed seat, the buffer section is pulled to a horizontal state and adheres to the adhesive surface to protect the adhesive surface.

[0032] The moving part is used to drive the moving seat to move.

[0033] The clamping assembly is rotatably arranged on the moving seat and used to clamp and position the art paper.

[0034] By adopting the above technical scheme, the moving part drives the moving seat and the clamping assembly to move close to the paper roll and the cutter. The clamping assembly is in an open state, the art paper passes above the fixed seat and moves to above the moving seat, the clamping assembly rotates and cooperates with the moving seat to clamp and position the art paper, the moving part drives the moving seat and the clamping assembly to move back, so as to pull out a section of the art paper, then the fixed seat and the cutting head cooperate to support and cut the art paper. After cutting, the clamping assembly rotates away from the art paper to unlock, and the mechanical hand starts to grab and convey the art paper.

[0035] The fixed seat and the cutting head cooperate to support both sides of the art paper during cutting, thereby improving the accuracy of the cut art paper. Meanwhile, the clamping assembly rotates to clamp and position the art paper, and after the clamping assembly is loosened to release the clamping of the art paper, the blocking effect of the clamping assembly on the art paper is reduced, so that the mechanical hand can more easily grab and convey the art paper, thereby further improving the cutting efficiency and effect and improving the spraying efficiency and effect of the plastic workpiece.

[0036] The adhesive paper is arranged on the fixed seat and the moving seat, and the adhesive paper is adhered to the adhesive surface, thereby reducing the risk of damage to the adhesive surface during clamping and making the art paper better adhered to the plastic workpiece. Meanwhile, when the moving seat moves close to the fixed seat and the paper roll, the adhesive paper can enter the space between the fixed seat and the moving seat to achieve buffering. After the moving seat moves away from the fixed seat, the buffer section moves up until the buffer section is pulled to a horizontal state, so that the adhesive paper can be adhered to the adhesive surface to block foreign matter from moving to the adhesive surface. Then, the mechanical hand grabs and conveys the art paper, so that the art paper is separated from the adhesive paper, thereby further improving the adhesion of the art paper to the plastic workpiece and improving the spraying efficiency and effect of the plastic workpiece.

[0037] Optionally, the clamping assembly comprises:

[0038] The clamping arm is rotatably arranged on the moving seat.

[0039] A rotating member is arranged to drive the clamping arm to rotate so that the clamping arm is positioned to clamp the art paper together with the moving seat, or the clamping arm is rotated to the outside of the moving seat to facilitate the robot to take out the art paper.

[0040] By using the above technical scheme, the rotating member drives the clamping arm to rotate so that the clamping arm is positioned to clamp the art paper together with the moving seat, or the clamping arm is rotated to the outside of the moving seat to facilitate the robot to take out the art paper, thereby realizing the loosening of the clamping of the art paper and leaving a space for the robot to grasp and convey the art paper, and improving the spraying efficiency and effect of the plastic workpiece.

[0041] Optionally, an elastic layer is arranged on the clamping arm and abuts against the art paper.

[0042] By using the above technical scheme, the clamping of the art paper can be better realized, and the risk of damage of the art paper due to excessive pressure is reduced.

[0043] Optionally, a buffer surface is arranged between the cutting platform and the cutting head and is inclined downward to form a sagging state for the adhesive paper.

[0044] By using the above technical scheme, the buffer surface is arranged to facilitate the buffer section to enter between the moving seat and the fixed seat, thereby reducing the risk of the buffer section moving to the top of the moving seat and the fixed seat to block the art paper, and making the cutting process more stable.

[0045] Optionally, two protective plates are arranged on the machine body and abut against both sides of the adhesive paper to protect the adhesive paper.

[0046] By using the above technical scheme, the protective plates are arranged to protect the adhesive paper, thereby further reducing the risk of impurities moving to the adhesive surface and improving the spraying efficiency and effect of the plastic workpiece.

[0047] Optionally, the cutting head is arranged between the cutter and the fixed seat, and the cutting head comprises:

[0048] A cutting seat is arranged on the machine body and is arranged to slide towards or away from the cutter, and the adhesive paper is arranged on the upper surface of the cutting seat.

[0049] A sliding seat is arranged on the machine body and is arranged to vertically slide.

[0050] A cutting knife is arranged on the sliding seat and is arranged to cut the art paper.

[0051] An adsorption assembly is arranged on the lower surface of the sliding seat and is arranged to adsorb the side of the art paper away from the adhesive surface.

[0052] The sliding seat moves down to position the suction assembly to be adsorbed on the surface of the blueprint paper and the bonding paper to be bonded on the bonding surface, and to support the blueprint paper by the cutting seat and the fixing seat, the cutting knife moves down to cut the blueprint paper, the sliding seat and the suction assembly move up to drive the blueprint paper to be separated from the bonding paper and to be pulled out, the cutting seat moves down to position the bonding surface to be bonded with the bonding paper after the cutting device moves away from the sliding seat, the suction assembly is unlocked and moves up under the driving of the sliding seat, and the cutting seat moves back to the original position to drive the blueprint paper to move to the side of the fixing seat close to the moving seat.

[0053] By adopting the above technical scheme, when cutting is needed, the cutting platform clamps and tensions the blueprint paper, the sliding seat moves down and cooperates with the cutting seat to clamp the blueprint paper, and the suction assembly adsorbs and positions the blueprint paper, the cutting knife moves down to cut the blueprint paper, the mechanical hand grabs and conveys the cut blueprint paper, the sliding seat drives the suction assembly to grab the blueprint paper and moves up at the same time, the blueprint paper is separated from the bonding paper, and the suction assembly pulls the blueprint paper to move, so as to pull out a section of the blueprint paper.

[0054] The moving member drives the cutting seat to move close to the paper roll, the sliding seat moves down to drive the blueprint paper to move down and be bonded to the bonding paper, the suction assembly is unlocked, the sliding seat drives the suction assembly to move up and be separated from the blueprint paper, the moving member drives the cutting seat to move back and be away from the paper roll, and the cutting seat moves back to drive the blueprint paper to move from above the fixing seat to the side of the fixing seat close to the cutting platform, so as to conveniently clamp and convey one end of the blueprint paper by the cutting platform, and improve the spraying efficiency and effect of the plastic workpiece.

[0055] By pulling out a section of the blueprint paper to buffer when the suction assembly moves up, the force between the bonding surface and the bonding paper is small when the cutting seat moves back to convey the blueprint paper, so as to conveniently convey the blueprint paper from the cutting seat to the side of the fixing seat close to the cutting platform, and then the cutting platform can continue to tension the blueprint paper when clamping and conveying the blueprint paper, so as to further improve the spraying efficiency and effect of the plastic workpiece.

[0056] Optionally, the suction assembly comprises:

[0057] A plurality of suction cups are arranged on the sliding seat.

[0058] A control member controls the plurality of suction cups to be connected or disconnected with the outside.

[0059] By adopting the above technical scheme, the control member controls the suction cups to be connected with the outside, so that air in the suction cups is discharged, after the suction cups are adsorbed on the blueprint paper, the control member controls the plurality of suction cups to be disconnected with the outside, so that the suction cups can be adsorbed on the blueprint paper to be positioned, when adsorption needs to be released, the control member controls the suction cups to be connected with the outside, so that air can enter the suction cups, the sliding seat moves to drive the suction cups to be separated from the blueprint paper, and adsorption positioning or unlocking adsorption of the blueprint paper is realized.

[0060] In summary, the present application includes at least one of the following beneficial technical effects:

[0061] 1. By cutting the platform close to the paper roll, the art paper is stretched into the cutting platform, the cutting platform clamps one end of the art paper, and then moves away from the cutter and the paper roll, so that the art paper is pulled out, the cutting head cuts the art paper, and then the mechanical hand can grasp the art paper and paste it on the plastic workpiece, thereby improving the spraying quality and efficiency of the plastic workpiece.

[0062] 2. By fixing the adhesive paper on the cutting platform and the cutting head, when the art paper is clamped, the adhesive surface is adhered to the adhesive paper, after cutting, the mechanical hand adsorbs and grasps the upper surface of the art paper, the mechanical hand pulls the art paper up to separate from the adhesive paper, the adhesive paper can reduce the damage to the adhesive surface caused by clamping, and the adhesive paper and the adhesive surface are easy to separate, which is also convenient for the subsequent mechanical hand to grasp and convey the adhesive paper, thereby improving the precision and firmness of the art paper adhered to the plastic workpiece, and improving the spraying quality and efficiency of the plastic workpiece.

[0063] 3. By setting the adhesive paper on the fixed seat and the moving seat, the moving seat moves away from the fixed seat, so that the adhesive paper can be adhered to the adhesive surface, and foreign matter is prevented from moving to the adhesive surface, then the mechanical hand grasps and conveys the art paper, so that the art paper is separated from the adhesive paper, thereby further improving the firmness of the art paper adhered to the plastic workpiece, and improving the spraying efficiency and effect of the plastic workpiece. BRIEF DESCRIPTION OF DRAWINGS

[0064] Figure 1 is a schematic view of the cutting device;

[0065] Figure 2 is a schematic view of the cutting device; Figure 1

[0066] Figure 3 is a schematic view of the cutting device; Figure 2

[0067] Figure 4 is a schematic view of the cutting device;

[0068] Figure 5 is a schematic view of the cutting device;

[0069] ​​Reference numerals: 1. Body; 11. Protective component; 12. Protective chamber; 13. Masking tape; 14. Adhesive surface; 15. Adhesive paper; 16. Paper roll; 2. Cutter; 21. Support wheel; 22. Guide roller; 3. Tensioning assembly; 31. Tensioning rod; 32. Rotating rod; 321. Snap-fit ​​part; 322. Rotating part; 33. Tensioning wheel; 34. Tension spring; 35. Positioning block; 36. Rotating shaft; 37. Snap-fit ​​groove; 4. Cutting platform; 41. Moving seat; 42. Fixed seat; 43. Moving component; 44. Clamping assembly; 45. Clamping arm; 5. Cutting head; 51. Cutting seat; 52. Sliding seat; 53. Cutter; 55. Suction cup; 56. Control tube. Detailed Implementation

[0070] The following provides a further detailed description of this application.

[0071] This application discloses a masking paper cutting device.

[0072] Reference Figures 1-3 A masking tape cutting device includes a cutter 2, a cutting platform 4, a cutting head 5, and adhesive paper 15. The cutter 2 is mounted on a machine body 1 and has a paper roll 16 containing masking tape 13 installed on it. The cutting platform 4 is slidably mounted on the machine body 1 in a direction close to or away from the cutter 2 and is used to clamp the masking tape 13. The cutting head 5 is used to cut the masking tape 13. The cutting platform 4 is close to the cutter 2, causing the masking tape 13 to move into the cutting platform 4. After clamping the masking tape 13, the cutting platform 4 moves away from the cutter 2 to pull out a section of masking tape 13. The cutting head 5 cuts the masking tape... Paper 13 is cut to obtain masking paper 13 of the required size, and then the masking paper 13 is bonded to the plastic workpiece by a robotic arm; adhesive paper 15 is placed on the cutting platform 4 and the cutting head 5, and the adhesive paper 15 is bonded and positioned with the adhesive surface 14, so that the masking paper 13 can be easily removed; the adhesive paper 15 is release paper, so that the adhesive paper 15 is bonded and positioned with the adhesive surface 14, and is used to protect the adhesive surface 14. The adhesive paper 15 and the masking paper 13 move simultaneously, and the adhesive paper 15 can be separated from the adhesive surface 14 under a certain force, that is, the adhesive paper 15 is easy to tear.

[0073] A protective component 11 is fixedly installed on the upper surface of the body 1. A protective chamber 12 is formed inside the protective component 11 and communicates with the top of the protective component 11. The protective chamber 12 is opened along the length direction of the protective component 11 and the body 1. The cutter 2 is installed on one end of the protective component 11, and the cutting platform 4 is located at the other end of the protective component 11. The cutting head 5 is located between the cutter 2 and the cutting platform 4.

[0074] Reference Figures 1-4The cutter 2 comprises a plurality of supporting wheels 21, a guide roller 22 and a tensioning assembly 3. The plurality of supporting wheels 21 are horizontally arranged and spaced apart. The supporting wheels 21 are rotatably mounted on the two guards 11 and located in the guard chamber 12. The paper roll 16 is positioned on the plurality of supporting wheels 21 and positioned against the guard chamber 12 at both ends. The guide roller 22 is rotatably mounted on the two guards 11 and located on the guard chamber 12 and below the plurality of supporting wheels 21. The guide roller 22 is located close to the cutting platform 4. The crepe paper 13 on the paper roll 16 passes below the guide roller 22. The guide roller 22 guides the movement of the crepe paper 13 so that the adhesive bonding surface 14 of the crepe paper 13 is arranged downward.

[0075] With reference to Figures 4-5 The tensioning assembly 3 is positioned against the inner circle of the paper roll 16 under the action of elastic force. The tensioning assembly 3 comprises a tensioning rod 31, a rotating rod 32, a tensioning wheel 33, a tension spring 34 and a positioning block 35. One end of the tensioning rod 31 is rotatably mounted on the side wall of the guard 11 away from the supporting wheel 21. The one end of the tensioning rod 31 is inclined upward to the paper roll 16. The rotating direction of the tensioning rod 31 is parallel to the direction of the supporting wheel 21. A clamping groove 37 is formed at the top end of the tensioning rod 31. A rotating shaft 36 is fixedly mounted on the clamping groove 37. The axis of the rotating shaft 36 is perpendicular to the axis direction of the supporting wheel 21.

[0076] The rotating rod 32 comprises a clamping portion 321 and a rotating portion 322 connected in sequence. The clamping portion 321 is square-shaped and clamped with the clamping groove 37 and extends to the outside of the clamping groove 37. The rotating portion 322 is cylindrical. The tensioning wheel 33 is rotatably mounted on the end of the rotating portion 322 away from the clamping portion 321. The axis of the tensioning wheel 33 is parallel to the axes of the supporting wheel 21 and the paper roll 16. The tension spring 34 is connected with the guard 11 and the tensioning rod 31 respectively. The rotating rod 32 and the tensioning wheel 33 keep the tendency of being close to the inner circle of the paper roll 16. The tensioning wheel 33 is positioned against the inner circle of the paper roll 16. When the tensioning wheel 33 is pressed against the inner circle of the new paper roll 16, the contact point between the tensioning wheel 33 and the inner circle of the paper roll 16 is located at the lowest point of the inner circle of the paper roll 16. The positioning block 35 is fixedly mounted on the side wall of the guard 11 and located below the rotating rod 32.

[0077] The rotating rod 32 is rotated to make the rotating rod 32 and the tensioning wheel 33 rotate to the inner side of the paper roll 16, so that the clamping part 321 is positioned in clamping cooperation with the clamping groove 37, the rotating rod 32 is loosened, and the tensioning wheel 33 is positioned by being pressed against the inner circle of the paper roll 16 under the pulling force of the tension spring 34; or the rotating rod 32 is pushed to make the tensioning wheel 33 move away from the inner circle of the paper roll 16, then the rotating rod 32 is pushed to drive the tensioning wheel 33 to rotate to the outer side of the paper roll 16, the clamping part 321 continues to be positioned in clamping cooperation with the clamping groove 37, the rotating rod 32 is loosened, the rotating part 322 is positioned by being pressed against the top end of the positioning block 35 under the pulling force of the tension spring 34, then the paper roll 16 can be replaced, and then the above actions are repeated, so that the tensioning wheel 33 continues to be positioned by being pressed against the inner circle of the paper roll 16.

[0078] With reference to Figures 1-3 The cutting platform 4 comprises a moving seat 41, a fixed seat 42, a clamping assembly 44 and a moving piece 43. The moving seat 41 is horizontally slidably installed on the upper surface of the machine body 1 and located at one side of the protective piece 11, and the sliding direction of the moving seat 41 is close to or away from the direction of the cutter 2. The fixed seat 42 is fixedly installed on the machine body 1 and located at one side close to the protective piece 11, and the fixed seat 42 is located between the moving seat 41 and the protective piece 11. The upper surfaces of the fixed seat 42 and the moving seat 41 are flush. The clamping assembly 44 is rotatably arranged on the moving seat 41. The embossed paper 13 extends from above the fixed seat 42 to above the moving seat 41, and the clamping assembly 44 is started to clamp and position the embossed paper 13. The moving piece 43 is an electric push rod, which is fixedly installed on the upper surface of the machine body 1. The piston rod of the moving piece 43 is fixedly connected with the moving seat 41, and the moving piece 43 is used to drive the moving seat 41 to move.

[0079] The bonding paper 15 is fixedly installed at one end on the top end of the fixed seat 42 and at the other end on the upper surface of the moving seat 41. The width of the bonding paper 15 is equal to the width of the embossed paper 13. When the moving seat 41 moves to the farthest position from the fixed seat 42, the bonding paper 15 is pulled to a horizontal state. After the moving seat 41 approaches the fixed seat 42, the bonding paper 15 between the fixed seat 42 and the moving seat 41 forms a sagging buffer section. When the moving seat 41 moves closest to the fixed seat 42, the buffer section is extruded by the moving seat 41 and the fixed seat 42 to form two sections and is positioned by abutting against each other. The upper surfaces of the moving seat 41 and the fixed seat 42 on the side close to each other are provided with inclined downward guide surfaces, which facilitate the bonding paper 15 to form a sagging state.

[0080] The clamping assembly 44 comprises a clamping arm 45 and a rotating member, the clamping arm 45 is rotatably installed on the side wall of the moving seat 41, and the rotating member is an electric push rod, the two ends of the rotating member are rotatably installed on the side wall of the moving seat 41 and are rotatably connected with the clamping arm 45; the rotating member drives the clamping arm 45 to rotate above the fixed seat 42 and cooperates with the moving seat 41 to clamp and position the art paper 13, or drives the clamping arm 45 to rotate to the outside of the moving seat 41, so as to realize unlocking of the art paper 13, and the risk of interference of the clamping arm 45 to the mechanical hand when the mechanical hand grabs the art paper 13 can be reduced; the clamping arm 45 is fixedly installed with an elastic layer abutting against the art paper 13.

[0081] The cutting head 5 is located on the protection piece 11 and inside the protection cavity 12, the cutting head 5 comprises a cutting seat 51, a sliding seat 52, a cutter 53 and a suction assembly, the cutting seat 51 is horizontally slidably installed on the upper surface of the machine body 1 and inside the protection cavity 12, and the sliding direction of the cutting seat 51 is parallel to the sliding direction of the moving seat 41, and the cutting seat 51 is located between the guide roller 22 and the fixed seat 42; the fixed paper 15 is fixedly installed on the upper surface of the cutting seat 51, the sliding seat 52 is vertically slidably installed on the protection piece 11 and inside the protection cavity 12, and the top ends of the sliding seat 52 and the fixed seat 42 are flush; the cutter 53 is vertically slidably installed on the sliding seat 52.

[0082] The upper surface of the machine body 1 is fixedly installed with a driving member for driving the cutting seat 51 to move, the protection piece 11 is fixedly installed with a driving member for driving the sliding seat 52 to move, and the sliding seat 52 is fixedly installed with a driving member for driving the cutter 53 to vertically move, and the three driving members can be electric push rods; the gap between the fixed seat 42 and the sliding seat 52 is used for the cutter 53 to enter and cut the art paper 13.

[0083] The suction assembly is arranged on the sliding seat 52 and suctions the side of the art paper 13 away from the bonding surface 14, the suction assembly comprises a plurality of suction cups 55 and a control member, a plurality of installation grooves are arranged on the lower surface of the sliding seat 52 at intervals, the plurality of suction cups 55 are fixedly installed in the plurality of installation grooves, the suction cups 55 are made of elastic materials such as rubber, the plurality of suction cups 55 are communicated through a plurality of control pipes 56, the plurality of control pipes 56 are connected with each other, and the control member is a control valve fixedly installed on the connected control pipes 56, when the control valve is opened, the sliding seat 52 is driven to move downward to drive the plurality of suction cups 55 to abut against the art paper 13, so that the air in the plurality of suction cups 55 is discharged through the control pipes 56, then the control valve is closed, so that the plurality of suction cups 55 are suctioned on the upper surface of the art paper 13 to be positioned; when the suction needs to be released, the control valve opens the control pipes 56, the sliding seat 52 moves upward, so that the air enters the plurality of suction cups 55 through the control pipes 56, so as to release the suction.

[0084] The working principle of the embodiment of the application is as follows:

[0085] When cutting is needed, the art paper 13 is clamped and in tension by the cutting platform 4, the cutting seat 51 and the fixed seat 42 support the art paper 13, the sliding seat 52 is lowered and cooperates with the cutting seat 51 to clamp the art paper 13, and the plurality of suction cups 55 realize adsorption positioning of the art paper 13, the cutter 53 is lowered to cut the art paper 13, the mechanical hand grasps and transports the cut art paper 13, the sliding seat 52 drives the plurality of suction cups 55 and the art paper 13 to move up at the same time, the art paper 13 is separated from the bonding paper 15, and at the same time the art paper 13 is pulled out by a length, the length of the pulled-out art paper 13 is less than the length of the cut art paper 13, so that the cutting platform 4 can pull the paper roll 16 to rotate when clamping and conveying the art paper 13, that is, the cut art paper 13 pulled out by the cutting platform 4 is in tension, thereby improving the precision of the cut art paper 13.

[0086] The cutting seat 51 is close to the paper roll 16, the sliding seat 52 is lowered to drive the art paper 13 to move down, so that the bonding surface 14 is bonded to the bonding paper 15, the plurality of suction cups 55 are unlocked, the sliding seat 52 drives the plurality of suction cups 55 to move up, the plurality of suction cups 55 can be separated from the art paper 13 under the action of the elastic force, the moving piece 43 drives the cutting seat 51 to move back away from the paper roll 16, and the cutting seat 51 moves back to drive the art paper 13 to move from above the fixed seat 42 to the side of the fixed seat 42 close to the cutting platform 4.

[0087] The moving seat 41 is close to the fixed seat 42, so that the art paper 13 moves to above the moving seat 41, the clamping arm 45 is turned to above the moving seat 41 and clamps and positions the art paper 13 in cooperation with the moving seat 41, the moving seat 41 drives the art paper 13 to move, and the bonding paper 15 is stretched to a horizontal state, the bonding paper 15 is bonded on the bonding surface 14 for protection, and then the cutting is repeated again, thereby improving the quality and efficiency of the art paper 13 cutting, and improving the quality and efficiency of the plastic workpiece spraying.

[0088] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A masking tape cutting device, characterized in that: The utility model relates to a cutting device for cutting decorative paper, comprising: a cutter (2) provided on a machine body (1) and installed with a paper roll (16) wound with decorative paper (13); a cutting platform (4) provided on the machine body (1) and used for clamping the decorative paper (13) and sliding in the direction close to or away from the cutter (2); a cutting head (5) used for cutting the decorative paper (13); the cutting platform (4) is close to the cutter (2) and moves the decorative paper (13) into the cutting platform (4), the cutting platform (4) is away from the cutter (2) after clamping the decorative paper (13), the cutting head (5) cuts the decorative paper (13) to obtain decorative paper (13) of the required size and bonds the decorative paper (13) to a plastic workpiece through a mechanical hand; the utility model further comprises bonding paper (15) provided on the cutting platform (4) and the cutting head (5) and bonded and positioned with a bonding surface (14) to facilitate the decorative paper (13) to be taken off; the cutting platform (4) comprises: a moving seat (41) provided on the machine body (1) and sliding in the direction close to or away from the cutter (2); a fixed seat (42) provided on the machine body (1) and located between the moving seat (41) and the cutting head (5), the fixed seat (42) and the cutting head (5) are matched and used for supporting and cutting the decorative paper (13), the bonding paper (15) is provided at both ends of the fixed seat (42) and the moving seat (41) and makes the moving seat (41) and the fixed seat (42) form a drooping buffer section, the buffer section is pulled to a horizontal state when the moving seat (41) is farthest away from the fixed seat (42), is bonded to the bonding surface (14) and realizes the protection of the bonding surface (14); a moving part (43) used for driving the moving seat (41) to move; a clamping assembly (44) rotatably provided on the moving seat (41) and used for clamping and positioning the decorative paper (13).

2. A stencil cutting device according to claim 1, wherein: the cutter (2) comprises: a plurality of supporting wheels (21) rotatably provided on the machine body (1); the paper roll (16) is placed on the plurality of supporting wheels (21); a guide roller (22) rotatably installed on the cutter (2) and used for guiding the output decorative paper (13) and making the bonding surface (14) for bonding the decorative paper (13) face downward; a tensioning assembly (3) positioned on the inner ring of the paper roll (16) under the action of elastic force.

3. A stencil cutting device according to claim 2, wherein: the utility model further comprises: the tensioning assembly (3) comprises: a tensioning rod (31) rotatably provided on the machine body (1) through a rotating shaft (36), the rotating shaft (36) is parallel to the axis of the paper roll (16); a rotating rod (32) rotatably installed on one end of the tensioning rod (31) close to the paper roll (16) and perpendicular to the axis of the rotating shaft (36) in the rotating direction; a tensioning wheel (33) rotatably provided on one end of the rotating rod (32) away from the tensioning rod (31) and parallel to the axis of the paper roll (16) in the rotating direction, when the rotating rod (32) drives the tensioning wheel (33) to rotate to the inner side or the outer side of the paper roll (16), the rotating rod (32) is positioned in matched connection with the tensioning rod (31); A tension spring (34) is connected with the tensioning rod (31) and the machine body (1) respectively and drives the tensioning wheel (33) to keep close to the paper roll (16); A positioning block (35) is arranged on the machine body (1); after the rotating rod (32) drives the tensioning wheel (33) to rotate to the outside of the paper roll (16), the rotating rod (32) is positioned by being pressed against the positioning block (35) under the tension of the tension spring (34); after the tensioning wheel (33) rotates to the inside of the paper roll (16), the tensioning wheel (33) is positioned by being pressed against the inner circle of the paper roll (16) under the tension of the tension spring (34).

4. A stencil cutting device according to claim 1, wherein: The clamping assembly (44) comprises: A clamping arm (45) is rotatably arranged on the moving seat (41); A rotating member is arranged for driving the clamping arm (45) to rotate, so that the clamping arm (45) cooperates with the moving seat (41) to clamp and position the embossed paper (13).

5. A stencil cutting device according to claim 4, wherein: An elastic layer is arranged on the clamping arm (45) and is pressed against the embossed paper (13).

6. A stencil cutting device according to claim 3, wherein: A buffer surface is arranged between the cutting platform (4) and the cutting head (5) and is inclined downward and downward to form a downward state for the adhesive paper (15) to pass through.

7. A stencil cutting device according to claim 3, wherein: The cutting head (5) is located between the cutter (2) and the fixing seat (42), and the cutting head (5) comprises: A cutting seat (51) is slidably arranged on the machine body (1) in the direction close to or away from the cutter (2), and the adhesive paper (15) is arranged on the upper surface of the cutting seat (51); A sliding seat (52) is vertically slidably arranged on the machine body (1); A cutting knife (53) is vertically slidably arranged on the sliding seat (52) and is used for cutting the embossed paper (13); An adsorption assembly is arranged on the lower surface of the sliding seat (52) and is used for adsorbing the side of the embossed paper (13) away from the adhesive surface (14); The sliding seat (52) is lowered to make the adsorption assembly adsorb on the upper surface of the embossed paper (13) and the adhesive paper (15) is positioned on the adhesive surface (14) and is supported by the cutting seat (51) and the fixing seat (42), the cutting knife (53) is lowered to cut the embossed paper (13), the sliding seat (52) and the adsorption assembly are raised to drive the embossed paper (13) to separate from the adhesive paper (15) and to pull out a section of the embossed paper (13), the cutting seat (51) is close to the cutter (2), the sliding seat (52) is lowered and the adhesive surface (14) is positioned by being bonded with the adhesive paper (15), the adsorption assembly is unlocked and is raised under the driving of the sliding seat (52), the cutting seat (51) is returned to the original position and drives the embossed paper (13) to move to the side of the fixing seat (42) close to the moving seat (41).

8. A stencil cutting device according to claim 7, wherein: The adsorption assembly comprises: A plurality of suction cups (55) are arranged on the sliding seat (52); A control member is arranged for controlling the plurality of suction cups (55) to be in communication or disconnected with the outside.

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