Automatic edge trimmer for PVC decal

Abstract

The invention discloses an automatic edge trimmer for PVC decal, and belongs to the technical field of edge trimmers, the automatic edge trimmer for PVC decal comprises a rack, one end of the rack is fixedly connected with a die cutting mechanism, the upper end of the rack is fixedly connected with a feeding mechanism, one side of the rack is fixedly connected with a driving mechanism, and the other side of the rack is fixedly connected with a discharging mechanism. The end, away from the die cutting mechanism, of the rack is fixedly connected with a storage mechanism, and a die cutting roller is arranged in the end, close to the die cutting mechanism, of the rack. Through the use of the stamping mechanism, PVC decal paper can be impacted according to the rolling of the main roller and the extrusion of the die-cutting knife, so that the die-cutting knife reaches enough cutting depth, and the influence on the quality of finished products due to incapability of cutting off is avoided; and meanwhile, through the use of the driving mechanism, the die-cutting roller, the transfer mechanism, the die-cutting mechanism and the paper feeding mechanism, the production efficiency is improved. The trimming operation is fully automatic, and the labor intensity and danger of workers are reduced.

Description

Technical Field

[0001] This invention belongs to the field of edge cutting machine technology, specifically relating to an automatic edge cutting machine for PVC decals. Background Technology

[0002] PVC decals are a common decorative material, typically consisting of the following layers: a PVC surface layer: a polyvinyl chloride film with a printed pattern, forming the main body of the decal; an adhesive layer: located on the back of the PVC, providing adhesion; and a release liner: supporting the PVC surface layer, which is peeled off before use. In the traditional manufacturing process of PVC decals, the edge trimming of the printed pattern mainly relies on two methods: one is purely hand-carving; the other is pre-making special die-cutting. The limitations of these traditional methods in terms of efficiency, cost, and flexibility have hindered the further development of the industry.

[0003] However, manual engraving is inefficient, inaccurate, and inconsistent. Traditional die-cutting requires manual feeding, and workers have to work between opening and closing machines, which is quite dangerous. At the same time, the cutting depth of the die also affects the quality of the finished product. If the cutting depth is too shallow, it will cause adhesion and make it impossible to remove the waste parts. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide an automatic edge cutting machine for PVC decals.

[0005] The technical solution adopted to solve the above technical problems is: an automatic edge cutting machine for PVC decals, including a frame, a die-cutting mechanism fixedly connected to one end of the frame, a feeding mechanism fixedly connected to the upper end of the frame, a driving mechanism fixedly connected to one side of the frame, a storage mechanism fixedly connected to the end of the frame away from the die-cutting mechanism, a die-cutting roller provided inside the end of the frame near the die-cutting mechanism, a transfer mechanism provided inside the end of the frame near the storage mechanism, a paper feeding mechanism provided inside the end of the frame near the storage mechanism, a pair of guide protrusions fixedly connected to both sides inside the frame, a guide fork fixedly connected to the position inside the frame near the transfer mechanism, and a second paper-stopping fork fixedly connected to the end of the frame away from the die-cutting mechanism.

[0006] The die-cutting roller includes a main roller rotatably connected within the frame. Several stamping mechanisms are fixedly connected to the main roller. Each stamping mechanism has a stamping plate fixedly connected to one end away from the main roller. Each stamping mechanism includes a fixed sleeve fixedly connected to the main roller. A telescopic sleeve is slidably connected inside the fixed sleeve. A first baffle is slidably connected inside the telescopic sleeve. Several second springs are fixedly connected to the side of the first baffle. A latch is fixedly connected to one end of each second spring away from the first baffle.

[0007] Through the above technical solution, the use of the drive mechanism synchronously drives the die-cutting roller and the transfer mechanism, so that the PVC decal paper can be fed out one by one from the paper feeding mechanism, and then cut by the die-cutting knife in sequence before being sent to the storage mechanism for stacking. The whole process does not require manual intervention, which greatly reduces the labor intensity of workers, improves the safety of workers during work, and at the same time makes the quality of finished products consistent and controllable, avoiding the generation of waste.

[0008] Preferably, the telescopic sleeve has a through hole at the end away from the fixed sleeve, a punch is fixedly connected through the first baffle, a limit block is fixedly connected at the end of the punch away from the through hole, a fourth spring is sleeved at the end of the punch near the limit block, a second baffle is fixedly connected at the end of the fixed sleeve near the limit block, a convex surface is fixedly connected at the position of the limit block near the second baffle, and a third spring is fixedly connected at the end of the telescopic sleeve near the fixed sleeve.

[0009] Through the above technical solution, the stamping plate presses the telescopic sleeve, and the telescopic sleeve drives the first baffle to move through the latch. The first baffle compresses the fourth spring. At this time, the latch is pushed into the first baffle by the inclined convex surface. Due to the lack of the latch's obstruction, the fourth spring pushes the first baffle to move. The first baffle drives the punch to impact the stamping plate, ensuring that the cutting depth of the die-cutting knife is sufficient.

[0010] Preferably, the feeding mechanism includes a feeding frame fixedly connected to the frame, a plurality of electric rollers are provided on the upper surface of the frame, a lead screw is slidably connected to one end of the feeding frame near the die-cutting roller, a handwheel is rotatably connected to the upper end of the feeding frame, the lead screw is threadedly connected to the handwheel, and slide rods are slidably connected to both sides of the feeding frame near the die-cutting roller, a stop plate is fixedly connected to the lower end of the slide rod, and the lead screw is rotatably connected to the stop plate.

[0011] By rotating the handwheel, the handwheel and the lead screw work together to move the baffle plate up and down along the direction of the slide bar, thereby changing the thickness of the paper outlet, so that the PVC decal paper can be discharged from the paper outlet individually. At the same time, it can accommodate PVC decal paper of different thicknesses. Then, the electric roller drives the PVC decal paper to be discharged from the paper outlet.

[0012] Preferably, the drive mechanism includes a fixed frame fixedly connected to one side of the frame, a first motor fixedly connected to the fixed frame, a first rotating shaft fixedly connected to the output end of the first motor, a second rotating shaft rotatably connected to the fixed frame, a first gear fixedly connected to the first rotating shaft, a first driving wheel fixedly connected to the end of the first rotating shaft away from the first motor, a first belt sleeved on the first driving wheel, a first driven wheel sleeved on the end of the first belt away from the first driving wheel, a second gear fixedly connected to the second rotating shaft, a second driving wheel fixedly connected to the end of the second rotating shaft away from the second gear, a second belt sleeved on the second driving wheel, a second driven wheel sleeved on the end of the second belt away from the second driving wheel, and the second gear and the first gear meshing with each other.

[0013] Through the above technical solution, the first motor drives the first rotating shaft to rotate, the first rotating shaft drives the first gear to rotate, the first gear drives the first driving wheel and the second gear to rotate, the second gear drives the second rotating shaft to rotate, the second rotating shaft drives the second driving wheel to rotate, the first driving wheel drives the first driven wheel to rotate via the first belt, the second driving wheel drives the second driven wheel to rotate via the second belt, the first driven wheel drives the main roller to rotate, and the second driven wheel drives the second fixed shaft to rotate.

[0014] Preferably, one end of the main roller is fixedly connected to the first driven roller, and flanges are fixedly connected to both sides of the main roller. A first fixed shaft is fixedly connected between the flanges. A plurality of paper grippers are rotatably connected to the first fixed shaft. A first spring is fixedly connected to the end of each paper gripper away from the stamping plate. A first arc-shaped hole is opened on the flange. A connecting rod is fixedly connected to the end of each paper gripper near the first spring. The connecting rod slides through the first arc-shaped hole. Cams are fixedly connected to both ends of the connecting rod. The cams and guide protrusions move and cooperate with each other. A half gear is fixedly connected to the flange.

[0015] With the above technical solution, when the main roller rotates, the cam drives the connecting rod to rotate around the first fixed axis under the push of the guide protrusion, so that the paper gripper opens. Then, the PVC decal paper is inserted from the paper discharge port between the paper gripper and the main roller under the drive of the electric roller. After that, the cam disengages from the guide protrusion, and the low spring pushes the paper gripper to close, clamping and fixing the PVC decal paper, so that the PVC decal paper moves with the rotation of the main roller.

[0016] Preferably, the transfer mechanism includes a second fixed shaft passing through a rotating connecting frame. One end of the second fixed shaft is fixedly connected to a second driven wheel. Several supports are fixedly connected to the second fixed shaft. A transfer plate is fixedly connected to the end of each support away from the second fixed shaft. Several suction holes are provided on the transfer plate. A connecting pipe is provided at the end of the second fixed shaft away from the second driven wheel. A rotary joint is rotatably connected to the end of the second fixed shaft near the connecting pipe. A partition is fixedly connected inside the rotary joint. A second arc-shaped hole is provided on the partition. A vent hole is fixedly connected inside the rotary joint. A fixed pipe is fixedly connected to the end of the rotary joint away from the second fixed shaft. A vacuum generator is fixedly connected to the end of the fixed pipe away from the rotary joint. The second arc-shaped hole communicates with the fixed pipe, and the suction holes communicate with the connecting pipe.

[0017] With the above technical solution, the connecting tube rotates to the position of the second arc-shaped hole, so that the vacuum generator is connected to the suction hole, and the PVC decal paper is sucked onto the transfer plate. The cam moves under the action of the guide protrusion, opens the paper gripper, and transfers the PVC decal paper to the transfer mechanism. Then the transfer mechanism rotates and sends the PVC decal paper to the top of the paper feeding fork. At this time, the connecting tube is connected to the vent hole, so that the suction hole cannot maintain a vacuum. The PVC decal paper falls onto the paper feeding fork under the action of gravity.

[0018] Preferably, the die-cutting mechanism includes a base plate fixed inside a frame, a first rack fixedly connected to the upper surface of the base plate, a partition plate slidably connected inside the frame, several supporting rollers fixedly connected to the upper and lower surfaces of the partition plate, a second motor fixedly connected through the partition plate, a third gear fixedly connected to the output end of the second motor, a top plate slidably connected inside the frame, a third rack fixedly connected to the lower surface of the top plate, the third rack meshing with the third gear, the third gear meshing with the first rack, a die-cutting plate fixedly connected to the upper surface of the top plate, second racks fixedly connected to both sides of the upper surface of the top plate, the second racks meshing with half gears, a die-cutting blade fixedly connected to the upper surface of the die-cutting plate, and several buffer rubbers fixedly connected to the upper surface of the die-cutting plate.

[0019] With the above technical solution, when the main roller rotates, the second motor drives the third gear to rotate. The third gear moves on the first rack and simultaneously drives the third rack to move, causing the top plate to move the die-cutting plate closer to the main roller. Then, through the cooperation of the half gear and the second rack, the die-cutting blade can move synchronously along the tangent direction of the main roller. At this time, the stamping plate presses the PVC decal paper onto the die-cutting blade, and the die-cutting blade cuts the PVC decal paper. Meanwhile, the buffer rubber presses down on the PVC decal paper to prevent wrinkles and reduce product quality.

[0020] Preferably, the paper feeding mechanism includes a third motor fixedly connected to one side of the frame, a fourth fixed shaft fixedly connected between the frames, a rocker arm rotatably connected to the fourth fixed shaft, a first strip-shaped hole on the rocker arm, a connecting rod slidably connected through the first strip-shaped hole, two discs fixedly connected to both ends of the connecting rod, the connecting rod being offset from the center of the discs, a third fixed shaft fixedly connected to the outer side of the discs, the output end of the third motor fixedly connected to the third fixed shaft, and a second strip-shaped hole on the rocker arm away from the connecting rod, a fixed rod slidably connected through the second strip-shaped hole. Both ends of the fixed rod are fixedly connected to fixed plates, and several paper feeding forks are fixedly connected to the fixed plates. A first slide groove is opened on the inner side of the frame. A first limit switch is fixedly connected to the end of the first slide groove away from the die-cutting roller. A second limit switch is fixedly connected to the end of the first slide groove away from the first limit switch. The fixed plate slides in cooperation with the first slide groove. A fourth motor is fixedly connected to the side of the frame away from the third motor. A fifth fixed shaft is fixedly connected to the output end of the fourth motor. Several first paper blocking forks are fixedly connected to the fifth fixed shaft. The first paper blocking forks and paper feeding forks are arranged alternately.

[0021] Through the above technical solution, the third motor drives the disc to rotate via the third fixed shaft. The disc, through the connection between the connecting rod and the first slot, drives the rocker arm to swing back and forth. The rocker arm, through the connection between the second slot and the fixed rod, drives the paper feeding fork to move along the first slide groove. When the paper feeding fork moves to a position close to the storage mechanism, it triggers the second limit switch, causing the fourth motor to start. The fourth motor drives the fifth fixed shaft to rotate, lifting the first paper blocking fork. Subsequently, the paper feeding fork returns to its original position under the drive of the third motor, while the PVC decal paper is blocked by the first paper blocking fork and falls onto the lifting plate. When the paper feeding fork moves to a position away from the storage mechanism, it triggers the first limit switch, causing the fourth motor to drive the first paper blocking fork to lower.

[0022] Preferably, the storage mechanism includes a pair of second slide grooves opened on both sides of the frame, a lifting plate slidably connected in the second slide grooves, a steel wire rope fixedly connected to the upper surface of the lifting plate, sliders fixedly connected to both sides of the lifting plate, the sliders slidingly engaging with the second slide grooves, pulleys rotatably connected to both sides of the frame, a steel wire rope sleeved on the pulleys, the end of the steel wire rope away from the pulley passing through and slidably connecting to the lifting plate, and a fifth spring fixedly connected to the bottom of both sides of the frame, the fifth spring being fixedly connected to the steel wire rope.

[0023] With the above technical solution, as the PVC decals gradually accumulate on the lifting plate, the weight of the lifting plate increases, which in turn pulls the fifth spring through the steel wire rope and pulley to extend, and the lifting plate also descends, making it easier to discharge the next PVC decal. The use of the second paper stop fork can prevent the PVC decals from moving out of the lifting plate.

[0024] The beneficial effects of the present invention are as follows: (1) The present invention uses a driving mechanism to synchronously drive the die-cutting roller and the transfer mechanism, so that the PVC decal paper can be fed out one by one from the paper feeding mechanism, and then cut by the die-cutting knife in sequence and finally sent into the storage mechanism for stacking. The whole process does not require manual intervention, which greatly reduces the labor intensity of workers, improves the safety of workers during work, and at the same time makes the quality of finished products consistent and controllable, avoiding the generation of waste; (2) The present invention uses a die-cutting mechanism. When the main roller rotates, the second motor drives the third gear to rotate. The third gear moves on the first rack and drives the third rack to move, so that the top plate drives the die-cutting plate to move closer to the main roller, and then through the half gear and the second The rack and pinion mechanism allows the die-cutting blade to move synchronously along the tangent of the main roller. At this time, the stamping plate presses the PVC decal paper onto the die-cutting blade and cuts the PVC decal paper through the die-cutting blade. The buffer rubber will press the PVC decal paper to avoid wrinkles and reduce product quality. (3) In this invention, when the stamping plate presses the PVC decal paper onto the die-cutting blade, the stamping plate presses the telescopic sleeve. The telescopic sleeve drives the first baffle to move down through the tenon. At this time, the inclined convex surface pushes the tenon inward. When the tenon is fully inserted into the first baffle, the fourth spring pushes the first baffle to release. The first baffle drives the punch to impact the stamping plate, ensuring that the die-cutting blade cuts a sufficient depth on the PVC decal paper. Attached Figure Description

[0025] Figure 1 This is a first-view structural diagram of the present invention;

[0026] Figure 2 This is a second-view structural diagram of the present invention;

[0027] Figure 3 This is a third-view structural diagram of the present invention;

[0028] Figure 4 yes Figure 3 Enlarged view of point A;

[0029] Figure 5 This is a fourth-view structural diagram of the present invention;

[0030] Figure 6 This is a side sectional view of the present invention;

[0031] Figure 7 yes Figure 6 Enlarged view of point B;

[0032] Figure 8 This is a structural diagram of the paper feeding fork of the present invention;

[0033] Figure 9 This is an exploded view of the die-cutting mechanism of the present invention;

[0034] Figure 10 This is a partial structural diagram of the paper feeding mechanism of the present invention;

[0035] Figure 11 This is a structural diagram of the die-cutting roller of the present invention;

[0036] Figure 12 This is a structural diagram of the transfer roller of the present invention;

[0037] Figure 13 This is a cross-sectional view of the rotating interface of the present invention;

[0038] Figure 14 This is a diagram of the internal structure of the frame of the present invention;

[0039] Figure 15 This is a cross-sectional view of the stamping mechanism of the present invention.

[0040] Reference numerals: 1. Frame; 2. Feeding mechanism; 21. Feeding frame; 22. Electric roller; 23. Lead screw; 24. Handwheel; 25. Slide bar; 26. Guard plate; 3. Drive mechanism; 31. Fixed frame; 32. First motor; 33. First rotating shaft; 34. First gear; 35. First driving wheel; 36. First belt; 37. First driven wheel; 38. Second rotating shaft; 39. Second gear; 310. Second driving wheel; 311. Second belt; 312. Second driven wheel; 4. Die-cutting roller; 41. Main roller; 42. Stamping plate; 43. 44. First fixed shaft; 45. Paper gripper; 46. First spring; 47. Flange; 48. Half gear; 49. First arc-shaped hole; 40. Connecting rod; 410. Cam; 5. Stamping mechanism; 51. Fixed sleeve; 52. Telescopic sleeve; 53. Through hole; 54. First baffle; 55. Second spring; 56. Locking tenon; 57. Third spring; 58. Sloping convex surface; 59. Second baffle; 510. Punch; 511. Limiting block; 512. Fourth spring; 6. Transfer mechanism; 61. Second fixed shaft; 62. Bracket; 63. Transfer plate; 64. Suction hole; 65. Connecting pipe; 66. Rotary joint; 67. Partition plate; 68. Second arc-shaped hole; 69. Fixed pipe; 610. Vacuum generator; 611. Vent hole; 7. Die-cutting mechanism; 71. Base plate; 72. First rack; 73. Partition plate; 74. Support roller; 75. Second motor; 76. Third gear; 77. Top plate; 78. Second rack; 79. Die-cutting plate; 710. Die-cutting blade; 711. Buffer rubber; 712. Third rack; 8. Paper feeding mechanism; 81. Third motor; 82. Third fixed shaft; 83. Disc; 84. Connecting rod 85. Fourth fixed shaft; 86. Rocker arm; 87. First strip hole; 88. Second strip hole; 89. Fixed rod; 810. Fixed plate; 811. Paper feed fork; 812. Fourth motor; 813. Fifth fixed shaft; 814. First paper stop fork; 815. First slide rail; 816. First limit switch; 817. Second limit switch; 9. Storage mechanism; 91. Second slide rail; 92. Lifting plate; 93. Slider; 94. Pulley; 95. Steel wire rope; 96. Fifth spring; 10. Guide fork; 11. Guide protrusion; 12. Second paper stop fork. Detailed Implementation

[0041] 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.

[0042] like Figures 1-15As shown, an automatic edge-cutting machine for PVC decals according to this embodiment includes a frame 1. A feeding mechanism 2 is fixedly connected to the upper end of the frame 1. The feeding mechanism 2 includes a feeding frame 21 fixedly connected to the frame 1. A plurality of electric rollers 22 are provided on the upper surface of the frame 1. A lead screw 23 is slidably connected to one end of the feeding frame 21 near the die-cutting roller 4. A handwheel 24 is rotatably connected to the upper end of the feeding frame 21. The lead screw 23 is threadedly connected to the handwheel 24. Both sides of the feeding frame 21 near the die-cutting roller 4 are slidably connected to... There is a slide bar 25, and a baffle plate 26 is fixedly connected to the lower end of the slide bar 25. The screw rod 23 is rotatably connected to the baffle plate 26. The operator puts the PVC decal paper into the feeding frame 21 of the feeding mechanism 2, and then turns the handwheel 24. The handwheel 24 and the screw rod 23 work together to drive the baffle plate 26 to rise and fall along the direction of the slide bar 25, thereby changing the thickness of the paper outlet, so that the PVC decal paper can be discharged from the paper outlet one by one. At the same time, it can adapt to PVC decal paper of different thicknesses. Then the electric roller 22 drives the PVC decal paper to be discharged from the paper outlet.

[0043] A pair of guide protrusions 11 are fixedly connected to both sides inside the frame 1. A guide fork 10 is fixedly connected to the frame 1 near the transfer mechanism 6. A second paper stop fork 12 is fixedly connected to the end of the frame 1 away from the die-cutting mechanism 7. The use of the guide fork 10 prevents the PVC decal paper from falling off the transfer mechanism 6. The use of the second paper stop fork 12 prevents the PVC decal paper from moving out of the lifting plate 92.

[0044] like Figure 3 and Figure 4As shown, a drive mechanism 3 is fixedly connected to one side of the frame 1. The drive mechanism 3 includes a fixed frame 31 fixedly connected to one side of the frame 1. A first motor 32 is fixedly connected to the fixed frame 31. A first rotating shaft 33 is fixedly connected to the output end of the first motor 32. A second rotating shaft 38 is rotatably connected to the fixed frame 31. A first gear 34 is fixedly connected to the first rotating shaft 33. A first driving wheel 35 is fixedly connected to the end of the first rotating shaft 33 away from the first motor 32. A first belt 36 is sleeved on the first driving wheel 35. A first driven wheel 37 is sleeved on the end of the first belt 36 away from the first driving wheel 35. A second gear 39 is fixedly connected to the second rotating shaft 38. A second driving wheel 310 is fixedly connected to the end of the second rotating shaft 38 away from the second gear 39. The first gear 10 is fitted with a second belt 311. The end of the second belt 311 away from the second driving wheel 310 is fitted with a second driven wheel 312. The second gear 39 and the first gear 34 mesh with each other. The first motor 32 drives the first rotating shaft 33 to rotate. The first rotating shaft 33 drives the first gear 34 to rotate. The first gear 34 drives the first driving wheel 35 and the second gear 39 to rotate. The second gear 39 drives the second rotating shaft 38 to rotate. The second rotating shaft 38 drives the second driving wheel 310 to rotate. The first driving wheel 35 drives the first driven wheel 37 to rotate through the first belt 36. The second driving wheel 310 drives the second driven wheel 312 to rotate through the second belt 311. The first driven wheel 37 drives the main roller 41 to rotate. The second driven wheel 312 drives the second fixed shaft 61 to rotate.

[0045] like Figure 6 and Figure 7 As shown, a die-cutting roller 4 is provided inside the end of the frame 1 near the die-cutting mechanism 7. The die-cutting roller 4 includes a main roller 41 rotatably connected inside the frame 1. One end of the main roller 41 is fixedly connected to the first driven roller 37. Flanges 46 are fixedly connected to both sides of the main roller 41. A first fixed shaft 43 is fixedly connected between the flanges 46. Several paper grippers 44 are rotatably connected to the first fixed shaft 43. A first spring 45 is fixedly connected to the end of the paper gripper 44 away from the stamping plate 42. A first arc-shaped hole 48 is opened on the flange 46. A connecting rod 49 is fixedly connected to the end of the paper gripper 44 near the first spring 45. The connecting rod 49 slides through and connects to the first arc-shaped hole 48. A cam 410 is fixedly connected to both ends of the hole 48 and the connecting rod 49. The cam 410 and the guide protrusion 11 are in mutual engagement. A half gear 47 is fixedly connected to the flange 46. When the main roller 41 rotates, the cam 410 drives the connecting rod 49 to rotate around the first fixed shaft 43 under the push of the guide protrusion 11, so that the paper gripper 44 opens. Then, the PVC decal paper is inserted from the paper discharge port between the paper gripper 44 and the main roller 41 under the drive of the electric roller 22. After that, the cam 410 disengages from the guide protrusion 11, and the first spring 45 pushes the paper gripper 44 to close, clamping and fixing the PVC decal paper, so that the PVC decal paper moves with the rotation of the main roller 41.

[0046] like Figure 15 As shown, a plurality of stamping mechanisms 5 are fixedly connected to the main roller 41. Each stamping mechanism 5 has a stamping plate 42 fixedly connected to one end away from the main roller 41. Each stamping mechanism 5 includes a fixed sleeve 51 fixedly connected to the main roller 41, a telescopic sleeve 52 slidably connected inside the fixed sleeve 51, and a first baffle 54 slidably connected inside the telescopic sleeve 52. A plurality of second springs 55 are fixedly connected to the side of the first baffle 54. A latch 56 is fixedly connected to one end of each second spring 55 away from the first baffle 54. When the main roller 41 rotates, the stamping plate 42 presses the PVC... The decal is pressed onto the die-cutting blade 710 of the die-cutting plate 79. At this time, as the stamping plate 42 and the die-cutting blade 710 are squeezed, the stamping plate 42 presses the telescopic sleeve 52. The telescopic sleeve 52 drives the first baffle 54 to move through the latch 56. The first baffle 54 compresses the fourth spring 512. At this time, the latch 56 is pushed into the first baffle 54 by the inclined convex surface 58. Due to the lack of the latch 56, the fourth spring 512 pushes the first baffle 54 to move. The first baffle 54 drives the punch 510 to impact the stamping plate 42, ensuring that the cutting depth of the die-cutting blade 710 is sufficient.

[0047] The telescopic sleeve 52 has a through hole 53 at the end away from the fixed sleeve 51. A punch 510 is fixedly connected through the first baffle 54. A limit block 511 is fixedly connected at the end of the punch 510 away from the through hole 53. A fourth spring 512 is sleeved at the end of the punch 510 near the limit block 511. A second baffle 59 is fixedly connected at the end of the fixed sleeve 51 near the limit block 511. A convex surface 58 is fixedly connected at the position of the limit block 511 near the second baffle 59. A third spring 57 is fixedly connected at the end of the telescopic sleeve 52 near the fixed sleeve 51. The third spring 57 pushes the telescopic sleeve 52 to reset. The limit block 511 restricts the movement of the first baffle 54, so that the first baffle 54 stays below the telescopic sleeve 52. The second spring 55 pushes the latch 56 to extend and re-lock the telescopic sleeve 52.

[0048] like Figures 11-13As shown, a transfer mechanism 6 is provided on the inner side of the end of the frame 1 near the storage mechanism 9. The transfer mechanism 6 includes a second fixed shaft 61 that passes through and rotatably connects to the frame 1. One end of the second fixed shaft 61 is fixedly connected to the second driven wheel 312. Several brackets 62 are fixedly connected to the second fixed shaft 61. A transfer plate 63 is fixedly connected to the end of the brackets 62 away from the second fixed shaft 61. Several suction holes 64 are provided on the transfer plate 63. A connecting pipe 65 is provided at the end of the second fixed shaft 61 away from the second driven wheel 312. A rotary joint 66 is rotatably connected to the end of the second fixed shaft 61 near the connecting pipe 65. A partition 67 is fixedly connected inside the rotary joint 66. A second arc-shaped hole 68 is provided on the partition 67. A vent hole 611 is fixedly connected inside the rotary joint 66 away from the second fixed shaft 9. One end of shaft 61 is fixedly connected to a fixed tube 69. The end of fixed tube 69 away from rotary joint 66 is fixedly connected to a vacuum generator 610. The second arc-shaped hole 68 is connected to the fixed tube 69, and the suction hole 64 is connected to the connecting tube 65. The connecting tube 65 rotates to the position of the second arc-shaped hole 68, so that the vacuum generator 610 is connected to the suction hole 64, and the PVC decal paper is sucked onto the transfer plate 63. The cam 410 moves under the action of the guide protrusion 11, opens the paper gripper 44, and transfers the PVC decal paper to the transfer mechanism 6. Then the transfer mechanism 6 rotates and sends the PVC decal paper to the top of the paper feeding fork 811. At this time, the connecting tube 65 is connected to the vent hole 611, so that the vacuum hole 64 cannot be maintained. The PVC decal paper falls onto the paper feeding fork 811 under the action of gravity.

[0049] like Figure 6 and Figure 9As shown, a die-cutting mechanism 7 is fixedly connected to one end of the frame 1. The die-cutting mechanism 7 includes a base plate 71 fixed inside the frame 1, a first rack 72 fixedly connected to the upper surface of the base plate 71, a partition plate 73 slidably connected inside the frame 1, several support rollers 74 fixedly connected to both the upper and lower surfaces of the partition plate 73, a second motor 75 fixedly connected through the partition plate 73, a third gear 76 fixedly connected to the output end of the second motor 75, a top plate 77 slidably connected inside the frame 1, a third rack 712 fixedly connected to the lower surface of the top plate 77, the third rack 712 meshing with the third gear 76, the third gear 76 meshing with the first rack 72, and a die-cutting plate 79 fixedly connected to the upper surface of the top plate 77. A second rack 78 is fixedly connected to both sides of the upper surface of plate 77. The second rack 78 meshes with half gear 47. A die-cutting blade 710 is fixedly connected to the upper surface of die-cutting plate 79. Several buffer rubbers 711 are fixedly connected to the upper surface of die-cutting plate 79. The second motor 75 drives the third gear 76 to rotate. The third gear 76 and the first rack 72 work together to drive the partition plate 73 to move. At the same time, the third gear 76 and the third rack 712 work together to push the top plate 77 to move, so that the top plate 77 drives the die-cutting plate 79 to move closer to the main roller 41. Then the second rack 78 meshes with half gear 47, the second motor 75 stops working, and the main roller 41 drives the top plate 77 to move, ensuring the synchronicity of the movement of the top plate 77 and the main roller 41.

[0050] like Figure 6 and Figure 8 As shown, a storage mechanism 9 is fixedly connected to the end of the frame 1 away from the die-cutting mechanism 7. The storage mechanism 9 includes a pair of second slide grooves 91 opened on both sides inside the frame 1. A lifting plate 92 is slidably connected in the second slide grooves 91. A steel wire rope 95 is fixedly connected to the upper surface of the lifting plate 92. A slider 93 is fixedly connected to both sides of the lifting plate 92. The slider 93 slides and engages with the second slide grooves 91. A pulley 94 is rotatably connected to both sides inside the frame 1. A steel wire rope 95 is sleeved on the pulley 94. The steel wire rope 95 is located away from the pulley 94. One end of 4 is slidably connected to the lifting plate 92. The bottom of both sides of the frame 1 is fixedly connected to the fifth spring 96. The fifth spring 96 is fixedly connected to the steel wire rope 95. The PVC decal paper gradually accumulates on the lifting plate 92, and the weight of the lifting plate 92 increases. As a result, the steel wire rope 95 and the pulley 94 pull the fifth spring 96 to extend, and the lifting plate 92 also descends to facilitate the discharge of the next PVC decal paper. The use of the second paper stop fork 12 can prevent the PVC decal paper from moving out of the lifting plate 92.

[0051] A paper feeding mechanism 8 is provided on the inner side of one end of the frame 1 near the storage mechanism 9. The paper feeding mechanism 8 includes a third motor 81 fixedly connected to one side of the frame 1. A fourth fixed shaft 85 is fixedly connected between the frames 1. A rocker arm 86 is rotatably connected to the fourth fixed shaft 85. A first strip-shaped hole 87 is opened on the rocker arm 86. A connecting rod 84 is slidably connected through the first strip-shaped hole 87. Both ends of the connecting rod 84 are fixedly connected to a disc 83. The connecting rod 84 is offset from the center of the disc 83. A third fixed shaft 82 is fixedly connected to the outer side of the disc 83. The third motor 81... The output end of frame 1 is fixedly connected to the third fixed shaft 82. A second strip-shaped hole 88 is provided at the end of the rocker arm 86 away from the connecting rod 84. A fixed rod 89 is slidably connected through the second strip-shaped hole 88. Fixed plates 810 are fixedly connected to both ends of the fixed rod 89. Several paper feeding forks 811 are fixedly connected to the fixed plates 810. A first slide groove 815 is provided inside the frame 1. A first limit switch 816 is fixedly connected to the end of the first slide groove 815 away from the die-cutting roller 4. A second limit switch 811 is fixedly connected to the end of the first slide groove 815 away from the first limit switch 816. A two-limit switch 817, a fixed plate 810 slidingly engaging with a first slide groove 815, a fourth motor 812 fixedly connected to the side of the frame 1 away from the third motor 81, a fifth fixed shaft 813 fixedly connected to the output end of the fourth motor 812, and several first paper-stopping forks 814 fixedly connected to the fifth fixed shaft 813, the first paper-stopping forks 814 and the paper-feeding forks 811 being arranged alternately, the third motor 81 starts, the third motor 81 drives the disc 83 to rotate through the third fixed shaft 82, the disc 83 is connected to the first strip hole 87 through the connecting rod 84. The rocker arm 86 reciprocates, and the rocker arm 86, through the cooperation of the second slot 88 and the fixed rod 89, drives the paper feeding fork 811 to move along the first slide groove 815. When the paper feeding fork 811 moves to a position close to the storage mechanism 9, it triggers the second limit switch 817, causing the fourth motor 812 to start. The fourth motor 812 drives the fifth fixed shaft 813 to rotate, lifting the first paper blocking fork 814. Then, the paper feeding fork 811 returns to its original position under the drive of the third motor 81, while the PVC decal paper is blocked by the first paper blocking fork 814 and falls onto the lifting plate 92. When the paper feeding fork 811 moves to a position away from the storage mechanism 9, it triggers the first limit switch 816, causing the fourth motor 812 to drive the first paper blocking fork 814 to lower.

[0052] The working principle of this embodiment is as follows: the operator puts the PVC decal paper into the feeding frame 21 of the feeding mechanism 2, and then turns the handwheel 24. The handwheel 24 and the lead screw 23 work together to drive the baffle plate 26 to rise and fall along the direction of the slide bar 25, thereby changing the thickness of the paper outlet, so that the PVC decal paper can be discharged from the paper outlet one by one. At the same time, it can adapt to PVC decal paper of different thicknesses. Then the electric roller 22 drives the PVC decal paper to be discharged from the paper outlet.

[0053] At this time, the first motor 32 drives the first rotating shaft 33 to rotate, the first rotating shaft 33 drives the first gear 34 to rotate, the first gear 34 drives the first driving wheel 35 and the second gear 39 to rotate, the second gear 39 drives the second rotating shaft 38 to rotate, the second rotating shaft 38 drives the second driving wheel 310 to rotate, the first driving wheel 35 drives the first driven wheel 37 to rotate through the first belt 36, the second driving wheel 310 drives the second driven wheel 312 to rotate through the second belt 311, the first driven wheel 37 drives the main roller 41 to rotate, and the second driven wheel 312 drives the second fixed shaft 61 to rotate.

[0054] When the main roller 41 rotates, the cam 410 drives the connecting rod 49 to rotate around the first fixed shaft 43 under the push of the guide protrusion 11, so that the paper gripper 44 opens. Then, the PVC decal paper is inserted from the paper discharge port between the paper gripper 44 and the main roller 41 under the drive of the electric roller 22. After that, the cam 410 disengages from the guide protrusion 11, and the first spring 45 pushes the paper gripper 44 to close, clamping and fixing the PVC decal paper, so that the PVC decal paper moves with the rotation of the main roller 41.

[0055] Then, the second motor 75 drives the third gear 76 to rotate. The third gear 76 cooperates with the first rack 72 to drive the partition plate 73 to move. At the same time, the third gear 76, through cooperation with the third rack 712, pushes the top plate 77 to move, so that the top plate 77 drives the die-cutting plate 79 to approach the main roller 41. Subsequently, the second rack 78 meshes with the half gear 47, the second motor 75 stops working, and the main roller 41 drives the top plate 77 to move, ensuring the synchronicity of the movement of the top plate 77 and the main roller 41.

[0056] When the main roller 41 rotates, it presses the PVC decal onto the die-cutting blade 710 of the die-cutting plate 79 through the stamping plate 42. At this time, as the stamping plate 42 and the die-cutting blade 710 are squeezed, the stamping plate 42 presses the telescopic sleeve 52. The telescopic sleeve 52 drives the first baffle 54 to move through the latch 56. The first baffle 54 compresses the fourth spring 512. At this time, the latch 56 is pushed into the first baffle 54 by the inclined convex surface 58. Due to the lack of the latch 56, the fourth spring 512 pushes the first baffle 54 to move. The first baffle 54 drives the punch 510 to impact the stamping plate 42, ensuring that the cutting depth of the die-cutting blade 710 is sufficient.

[0057] As the main roller 41 continues to rotate, the half gear 47 disengages from the second rack 78, the second motor 75 drives the top plate 77 to reset via the third gear 76, and the third spring 57 pushes the telescopic sleeve 52 to reset. The limiting block 511 restricts the movement of the first baffle 54, so that the first baffle 54 stays below the telescopic sleeve 52, and the second spring 55 pushes the latch 56 to extend, re-locking the telescopic sleeve 52.

[0058] Driven by the main roller 41, the PVC decal paper with the cut edges moves to a position close to the transfer mechanism 6. At this time, the connecting pipe 65 rotates to the position of the second arc-shaped hole 68, so that the vacuum generator 610 is connected to the suction hole 64, and the PVC decal paper is sucked onto the transfer plate 63. When the connecting pipe 65 is disengaged from the position of the second arc-shaped hole 68, the connecting pipe 65 is blocked by the partition plate 67 to maintain the vacuum state. The cam 410 moves under the action of the guide protrusion 11, opens the paper gripper 44, and transfers the PVC decal paper to the transfer mechanism 6. Then the transfer mechanism 6 rotates and sends the PVC decal paper to the top of the paper feeding fork 811. At this time, the connecting pipe 65 is connected to the vent hole 611, so that the vacuum hole 64 cannot be maintained. The PVC decal paper falls onto the paper feeding fork 811 under the action of gravity.

[0059] Then, the third motor 81 starts, driving the disc 83 to rotate via the third fixed shaft 82. The disc 83, through the engagement of the connecting rod 84 and the first slot 87, drives the rocker arm 86 to swing back and forth. The rocker arm 86, through the engagement of the second slot 88 and the fixed rod 89, drives the paper feeding fork 811 to move along the first slide groove 815. When the paper feeding fork 811 moves to a position close to the storage mechanism 9, the second limit switch 817 is triggered, causing the fourth motor 812 to start. The fourth motor 812 drives the fifth fixed shaft 813 to rotate, lifting the first paper blocking fork 814. Subsequently, the paper feeding fork 811 returns to its original position under the drive of the third motor 81, while the PVC decal paper is blocked by the first paper blocking fork 814 and falls onto the lifting plate 92. When the paper feeding fork 811 moves to a position away from the storage mechanism 9, the first limit switch 816 is triggered, causing the fourth motor 812 to drive the first paper blocking fork 814 to lower.

[0060] As the PVC decals gradually accumulate on the lifting plate 92, the weight of the lifting plate 92 increases, which in turn pulls the fifth spring 96 to extend via the steel wire rope 95 and pulley 94, causing the lifting plate 92 to descend, facilitating the discharge of the next PVC decal. The use of the second paper fork 12 can prevent the PVC decals from moving out of the lifting plate 92.

[0061] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. An automatic edge-cutting machine for PVC decals, comprising a frame (1), characterized in that: One end of the frame (1) is fixedly connected to a die-cutting mechanism (7), the upper end of the frame (1) is fixedly connected to a feeding mechanism (2), one side of the frame (1) is fixedly connected to a driving mechanism (3), the end of the frame (1) away from the die-cutting mechanism (7) is fixedly connected to a storage mechanism (9), a die-cutting roller (4) is provided inside the end of the frame (1) near the die-cutting mechanism (7), a transfer mechanism (6) is provided inside the end of the frame (1) near the storage mechanism (9), a paper feeding mechanism (8) is provided inside the end of the frame (1) near the storage mechanism (9), a pair of guide protrusions (11) are fixedly connected to both sides inside the frame (1), a guide fork (10) is fixedly connected inside the frame (1) near the transfer mechanism (6), and a second paper stop fork (12) is fixedly connected to the end of the frame (1) away from the die-cutting mechanism (7). The die-cutting roller (4) includes a main roller (41) rotatably connected within the frame (1). Several stamping mechanisms (5) are fixedly connected to the main roller (41). A stamping plate (42) is fixedly connected to one end of each stamping mechanism (5) away from the main roller (41). The stamping mechanism (5) includes a fixed sleeve (51) fixedly connected to the main roller (41). A telescopic sleeve (52) is slidably connected inside the fixed sleeve (51). A first baffle (54) is slidably connected inside the telescopic sleeve (52). Several second springs (55) are fixedly connected to the side of the first baffle (54). A latch (56) is fixedly connected to one end of each second spring (55) away from the first baffle (54).

2. An automatic edge-cutting machine for PVC decals according to claim 1, characterized in that, The telescopic sleeve (52) has a through hole (53) at one end away from the fixed sleeve (51). A punch (510) is fixedly connected through the first baffle (54). A limit block (511) is fixedly connected at one end of the punch (510) away from the through hole (53). A fourth spring (512) is sleeved on one end of the punch (510) near the limit block (511). A second baffle (59) is fixedly connected at one end of the fixed sleeve (51) near the limit block (511). A convex surface (58) is fixedly connected at the position of the limit block (511) near the second baffle (59). A third spring (57) is fixedly connected at one end of the telescopic sleeve (52) near the fixed sleeve (51).

3. An automatic edge-cutting machine for PVC decals according to claim 1, characterized in that, The feeding mechanism (2) includes a feeding frame (21) fixedly connected to the frame (1). Several electric rollers (22) are provided on the upper surface of the frame (1). A lead screw (23) is slidably connected to one end of the feeding frame (21) near the die-cutting roller (4). A handwheel (24) is rotatably connected to the upper end of the feeding frame (21). The lead screw (23) is threadedly connected to the handwheel (24). Slide rods (25) are slidably connected to both sides of the feeding frame (21) near the die-cutting roller (4). A baffle plate (26) is fixedly connected to the lower end of the slide rod (25). The lead screw (23) is rotatably connected to the baffle plate (26).

4. An automatic edge-cutting machine for PVC decals according to claim 1, characterized in that, The drive mechanism (3) includes a fixed frame (31) fixedly connected to one side of the frame (1), a first motor (32) fixedly connected to the fixed frame (31), a first rotating shaft (33) fixedly connected to the output end of the first motor (32), a second rotating shaft (38) rotatably connected to the fixed frame (31), a first gear (34) fixedly connected to the first rotating shaft (33), a first drive wheel (35) fixedly connected to the end of the first rotating shaft (33) away from the first motor (32), and a first belt (36) is sleeved on the first drive wheel (35). The first belt (36) is fitted with a first driven wheel (37) at the end away from the first driving wheel (35). A second gear (39) is fixedly connected to the second shaft (38). A second driving wheel (310) is fixedly connected to the end of the second shaft (38) away from the second gear (39). A second belt (311) is fitted over the second driving wheel (310). A second driven wheel (312) is fitted inside the end of the second belt (311) away from the second driving wheel (310). The second gear (39) and the first gear (34) mesh with each other.

5. An automatic edge-cutting machine for PVC decals according to claim 4, characterized in that, One end of the main roller (41) is fixedly connected to the first driven roller (37). Both sides of the main roller (41) are fixedly connected to flanges (46). A first fixed shaft (43) is fixedly connected between the flanges (46). Several paper grippers (44) are rotatably connected to the first fixed shaft (43). A first spring (45) is fixedly connected to the end of the paper gripper (44) away from the stamping plate (42). A first arc-shaped hole (48) is opened on the flange (46). A connecting rod (49) is fixedly connected to the end of the paper gripper (44) near the first spring (45). The connecting rod (49) slides through the first arc-shaped hole (48). Cams (410) are fixedly connected to both ends of the connecting rod (49). The cams (410) and the guide protrusion (11) move and cooperate with each other. A half gear (47) is fixedly connected to the flange (46).

6. An automatic edge-cutting machine for PVC decals according to claim 4, characterized in that, The transfer mechanism (6) includes a second fixed shaft (61) that passes through the rotating connecting frame (1). One end of the second fixed shaft (61) is fixedly connected to a second driven wheel (312). Several brackets (62) are fixedly connected to the second fixed shaft (61). A transfer plate (63) is fixedly connected to the end of the bracket (62) away from the second fixed shaft (61). Several air suction holes (64) are provided on the transfer plate (63). A connecting pipe (65) is provided at the end of the second fixed shaft (61) away from the second driven wheel (312). The second fixed shaft (61) is close to the connecting pipe (65). One end of the rotating joint is rotatably connected to a rotary joint (66), and a partition plate (67) is fixedly connected inside the rotary joint (66). A second arc-shaped hole (68) is opened on the partition plate (67). A vent hole (611) is fixedly connected inside the rotary joint (66). A fixed tube (69) is fixedly connected to the end of the rotary joint (66) away from the second fixed shaft (61). A vacuum generator (610) is fixedly connected to the end of the fixed tube (69) away from the rotary joint (66). The second arc-shaped hole (68) and the fixed tube (69) are connected. The suction hole (64) and the connecting tube (65) are connected.

7. An automatic edge-cutting machine for PVC decals according to claim 5, characterized in that, The die-cutting mechanism (7) includes a base plate (71) fixed inside the frame (1), a first rack (72) fixedly connected to the upper surface of the base plate (71), a partition plate (73) slidably connected inside the frame (1), a plurality of supporting rollers (74) fixedly connected to the upper and lower surfaces of the partition plate (73), a second motor (75) fixedly connected through the partition plate (73), a third gear (76) fixedly connected to the output end of the second motor (75), a top plate (77) slidably connected inside the frame (1), and a first rack (72) fixedly connected to the lower surface of the top plate (77). The three racks (712) are meshed with the third gear (76), the third gear (76) is meshed with the first rack (72), the upper surface of the top plate (77) is fixedly connected to the die-cutting plate (79), the upper surfaces of the top plate (77) are fixedly connected to the second racks (78), the second racks (78) are meshed with the half gears (47), the upper surface of the die-cutting plate (79) is fixedly connected to the die-cutting blade (710), and the upper surface of the die-cutting plate (79) is fixedly connected to a plurality of buffer rubbers (711).

8. An automatic edge-cutting machine for PVC decals according to claim 1, characterized in that, The paper feeding mechanism (8) includes a third motor (81) fixedly connected to one side of the frame (1), a fourth fixed shaft (85) fixedly connected between the frames (1), a rocker arm (86) rotatably connected to the fourth fixed shaft (85), a first strip hole (87) opened on the rocker arm (86), a connecting rod (84) slidably connected through the first strip hole (87), a disc (83) fixedly connected to both ends of the connecting rod (84), the connecting rod (84) being offset from the center of the disc (83), a third fixed shaft (82) fixedly connected to the outside of the disc (83), the output end of the third motor (81) being fixedly connected to the third fixed shaft (82), a second strip hole (88) opened at the end of the rocker arm (86) away from the connecting rod (84), a fixed rod (89) slidably connected through the second strip hole (88), and the two ends of the fixed rod (89) being fixedly connected to the third fixed shaft (82). Each end is fixedly connected to a fixed plate (810), and several paper feeding forks (811) are fixedly connected to the fixed plate (810). A first slide groove (815) is opened on the inner side of the frame (1). A first limit switch (816) is fixedly connected to the end of the first slide groove (815) away from the die-cutting roller (4). A second limit switch (817) is fixedly connected to the end of the first slide groove (815) away from the first limit switch (816). The fixed plate (810) slides in cooperation with the first slide groove (815). A fourth motor (812) is fixedly connected to the side of the frame (1) away from the third motor (81). A fifth fixed shaft (813) is fixedly connected to the output end of the fourth motor (812). Several first paper blocking forks (814) are fixedly connected to the fifth fixed shaft (813). The first paper blocking forks (814) and the paper feeding forks (811) are arranged alternately.

9. An automatic edge-cutting machine for PVC decals according to claim 1, characterized in that, The storage mechanism (9) includes a pair of second slide grooves (91) opened on both sides inside the frame (1). A lifting plate (92) is slidably connected in the second slide groove (91). A steel wire rope (95) is fixedly connected to the upper surface of the lifting plate (92). A slider (93) is fixedly connected to both sides of the lifting plate (92). The slider (93) slides and engages with the second slide groove (91). A pulley (94) is rotatably connected to both sides inside the frame (1). A steel wire rope (95) is sleeved on the pulley (94). The end of the steel wire rope (95) away from the pulley (94) passes through and is slidably connected to the lifting plate (92). A fifth spring (96) is fixedly connected to the bottom of both sides inside the frame (1). The fifth spring (96) is fixedly connected to the steel wire rope (95).

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