An automated die-cutting and rewinding equipment for cushioning paper

Abstract

This invention relates to the field of buffer paper winding technology and discloses an automated die-cutting and winding device for buffer paper. The device includes a base with a positioning bracket riveted to its upper end. A limiting groove is horizontally formed inside the positioning bracket, and a bidirectional lead screw is rotatably mounted horizontally inside the limiting groove. One end of the bidirectional lead screw extends outward and is connected to a lead screw motor via a coupling. The bidirectional lead screw has symmetrically distributed forward and reverse spiral patterns, and a winding device is movably positioned at each of the forward and reverse spiral patterns. In this invention, oil is introduced into a hydraulic cylinder, causing a hydraulic rod to extend downward, driving a curved stop plate to extend downward into a gap. The two engage, causing the bent portion of the spring steel to bend inward, increasing the force between the curved stop plate and the gap, thus positioning the entire winding device. This provides automatic braking and auxiliary positioning, improving the stability of the winding device during operation.

Description

Technical Field

[0001] This invention relates to the field of cushioning paper winding technology, and particularly to an automated die-cutting and winding device for cushioning paper. Background Technology

[0002] Cushioning paper pads are materials used in the packaging industry, mainly including two types: honeycomb paper and folded paper. Cushioning paper pads are materials that absorb vibration and impact through physical means. They are usually made of paper or other fibrous materials and are widely used in the packaging of various items, especially during transportation, to effectively protect fragile or sensitive items from damage. The manufacturing process of cushioning paper pads includes filling, winding, pressing, die-cutting, and winding, forming an assembly line production. Winding equipment is used in the winding process.

[0003] Existing buffer paper winding equipment has several technical shortcomings. First, current winding equipment can only be adapted to a single roll and cannot be flexibly adjusted and installed according to the size and model of the roll, resulting in a limited range of applications. Second, after die-cutting, the buffer paper is directly transferred to the winding equipment. During this transfer process, due to the soft and easily deformable nature of the buffer paper, the two sides of the buffer paper are prone to curling or wrinkling, resulting in poor paper feeding and affecting the subsequent winding process. Third, when the roll is winding the buffer paper, various external factors can easily cause the buffer paper to be misaligned and the winding layers to be uneven, resulting in poor product appearance upon leaving the factory and reducing the quality of winding.

[0004] In summary, considering that existing facilities cannot meet the needs of operation, we propose an automated die-cutting and rewinding device for buffer paper. Summary of the Invention

[0005] The main objective of this invention is to provide an automated die-cutting and winding device for buffer paper, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] An automated die-cutting and winding device for buffer paper includes a base with a positioning bracket riveted to its upper end. A limiting groove is horizontally formed inside the positioning bracket, and a bidirectional lead screw is rotatably mounted inside the limiting groove. Both ends of the bidirectional lead screw are connected to the inner wall of the limiting groove via a first bearing seat. One end of the bidirectional lead screw extends outward and is connected to a lead screw motor via a coupling. Forward and reverse spiral patterns are symmetrically distributed on the bidirectional lead screw, and winding devices are movably mounted at the positions of both the forward and reverse spiral patterns.

[0008] As a preferred embodiment of the automated die-cutting and winding equipment for buffer paper described in this invention, each winding unit includes a movable arm, an intermediate seat, and a guide seat. The movable arm is equipped with a screw nut sleeve through which a bidirectional screw rod passes. The movable arm and the guide seat are connected and fixed by the intermediate seat. The upper end face of the equipment base is symmetrically provided with guide grooves for the guide seat to move. There are two sets of guide grooves. An inner groove is provided at the bottom center of the guide seat. A hydraulic cylinder is vertically installed inside the inner groove.

[0009] As a preferred embodiment of the automated die-cutting and winding equipment for buffer paper described in this invention, wherein: a rotating roller is rotatably arranged inside the intermediate seat, the rotating roller is fixed to the inner wall of the intermediate seat by an outer bearing, a pressure plate is welded to the end of the rotating roller, two sets of winding devices respectively use the pressure plate to clamp the roll, a pressure plate groove is opened on the inner surface of the intermediate seat for the pressure plate to rotate, an inner extension column is welded to the middle position of the outwardly extending end face of the pressure plate, the inner extension column extends into the inside of the roll, a correction roller is rotatably arranged extending outward from the interior of the intermediate seat, a spiral rib is provided on the outer surface of the correction roller, and the spiral rib acts on the upper edge of the buffer paper.

[0010] As a preferred embodiment of the automated die-cutting and winding equipment for buffer paper described in this invention, wherein: a hydraulic rod is movably arranged outward inside the hydraulic cylinder, an mounting block is welded to the lower end of the hydraulic rod, a curved stop plate is welded to the lower end of the mounting block, a slot is horizontally opened in the middle of the bottom of the guide groove for the curved stop plate to extend downward, and a spring steel bending part is provided in the middle of the curved stop plate.

[0011] As a preferred embodiment of the automated die-cutting and winding equipment for buffer paper described in this invention, wherein: a cylinder is horizontally installed at the center of the pressure plate, a cylinder rod is horizontally arranged extending outward from the inside of the cylinder, a linear groove is formed at the center of the inner extension column, a square displacement seat is movably arranged in the linear groove, the end of the square displacement seat is welded to the cylinder rod, each of the four sides of the square displacement seat is provided with an inclined sliding groove, the bottom of the inclined sliding groove is provided with a first cutting surface, and an elastic positioner is installed in each set of the inclined sliding grooves, the number of the elastic positioners being 4 sets.

[0012] As a preferred embodiment of the automated die-cutting and winding equipment for buffer paper described in this invention, the elastic positioner includes an inclined slider, a second slit, a positioning rod, a spring sleeve, a return spring, and a contacting curved surface. The inclined slider is movably disposed within an inclined groove. The lower end of the inclined slider is provided with a second slit that interacts with the first slit. A positioning rod is welded to the upper end of the inclined slider. The outer surface of the inner extension column is uniformly provided with rod holes for the positioning rod to extend out. A spring sleeve is fixed to the middle of the positioning rod. A return spring sleeved on the outside of the positioning rod is fixed between the spring sleeve and the lower end of the rod hole. The upper end of the positioning rod is provided with a contacting curved surface that contacts the inner surface of the roll.

[0013] As a preferred embodiment of the automated die-cutting and winding equipment for buffer paper described in this invention, the following features are provided: a large gear is sleeved on the end of the rotating roller away from the pressure plate; a small gear is meshed on the lower end of the large gear; the small gear is sleeved on the middle of the rotating shaft; a constant speed motor is connected to one end of the rotating shaft via a coupling; the constant speed motor is installed through the back of the intermediate seat; and the other end of the rotating shaft is fixed to the inner wall of the intermediate seat via a second bearing seat.

[0014] As a preferred embodiment of the automated die-cutting and winding equipment for buffer paper described in this invention, wherein: a first sprocket is also sleeved on the rotating shaft, the correction roller is fixed by a second outer bearing and the inner wall of the intermediate seat, a second small sprocket is sleeved on the end of the correction roller away from the spiral rib, and the first sprocket and the second small sprocket are connected by a chain for transmission.

[0015] As a preferred embodiment of the automated die-cutting and winding equipment for buffer paper described in this invention, the equipment base is connected to a support platform on its horizontal left side. Two sets of transfer outer frames are symmetrically arranged on the upper end of the support platform. Each set of transfer outer frames has four sets of large sprockets arranged vertically. The two sets of large sprockets at the same horizontal level are connected by a transfer chain to form a drive unit. The total number of drive units is 4.

[0016] As a preferred embodiment of the automated die-cutting and winding equipment for buffer paper described in this invention, each group of drive units is provided with an outer baffle on its outer side. The middle part of the outer baffle is riveted to the inner wall of the transfer outer frame through a mounting frame. The two groups of drive units are connected by a horizontal shaft for transmission. The horizontal shaft passes through the outer baffle. The large sprocket is symmetrically sleeved on the horizontal shaft. Both ends of the horizontal shaft are connected to the inner wall of the transfer outer frame through a third bearing seat. Both groups of horizontal shafts are sleeved with synchronous gears extending outward. The two groups of synchronous gears mesh with each other. One group of horizontal shafts is connected to a servo motor through a coupling. Each group of transfer chains is uniformly provided with anti-rolling edge structures. The number of anti-rolling edge structures is preferably 6-12 groups.

[0017] As a preferred embodiment of the automated die-cutting and winding equipment for buffer paper described in this invention, each set of anti-rolling structures includes a guide post, a tension spring, a connecting sleeve, a vertical groove, a locking block, a magnet, and a paper-pressing cam. The guide post is vertically welded to the outer surface of the transfer chain. A connecting sleeve is sleeved on the guide post. A tension spring sleeved on the outside of the guide post is connected between the bottom of the connecting sleeve and the transfer chain. Vertical grooves are symmetrically opened on the cylindrical surface of the guide post. A locking block extending into the vertical groove is fixed on the connecting sleeve. The number of vertical grooves and locking blocks is preferably 1-3 sets. Two sets of magnets are symmetrically installed at the bottom of the connecting sleeve.

[0018] In a preferred embodiment of the automated die-cutting and winding equipment for buffer paper described in this invention, a rotating groove is provided at the end of the connecting sleeve away from the guide post. A rotating shaft is rotatably arranged in the rotating groove. The rotating shaft is welded to the upper end face of the pressure cam. The lower convex surface of the pressure cam acts on the buffer paper. The upper end of the rotating shaft extends out of the rotating groove and is connected to the upper end face of the connecting sleeve through a connecting bearing seat. The rotating shaft drives the pressure cam to rotate around the connecting bearing seat. A torsion spring is sleeved in the middle of the rotating shaft. A torsion spring sleeve for storing the torsion spring is connected to the lower end of the connecting bearing seat. The upper end of the torsion spring is fixed to the inner wall of the torsion spring sleeve. The pressure cams on different drive units are symmetrically distributed on the upper and lower surfaces of the buffer paper during the movement, clamping the buffer paper and moving it linearly to the right.

[0019] As a preferred embodiment of the automated die-cutting and winding equipment for buffer paper described in this invention, the inner surface of the intermediate seat is provided with a vertical roller groove for the movement of the correction roller. The vertical roller groove extends into the interior of the intermediate seat and connects to an adjustment groove. A motor seat is movably arranged in the adjustment groove. Limiting slides are symmetrically arranged on both sides of the motor seat. The number of limiting slides is preferably 2-3 sets. A track acting on the limiting slides is installed on the groove wall of the adjustment groove. A drive motor is horizontally installed inside the motor seat. The drive motor is connected to the correction roller through a positioning bearing. Two sets of adjusting springs are symmetrically installed between the upper end face of the motor seat and the adjustment groove.

[0020] As a preferred embodiment of the automated die-cutting and winding equipment for buffer paper described in this invention, each drive unit is further provided with several sets of tensioning wheels that act on the transfer chain. The number of tensioning wheels is preferably 12-24 sets, and the tensioning wheels are installed on the inner wall of the outer frame of the transfer.

[0021] As a preferred embodiment of the automated die-cutting and winding equipment for buffer paper described in this invention, a first tensioning roller acting on the buffer paper is installed on the left end face of the equipment base.

[0022] As a preferred embodiment of the automated die-cutting and winding equipment for buffer paper described in this invention, a second tensioning roller acting on the buffer paper is installed on the left side of the upper end face of the equipment base.

[0023] In a preferred embodiment of the automated die-cutting and winding equipment for buffer paper described in this invention, both sets of synchronous gears are located on the outside of the transfer outer frame.

[0024] In a preferred embodiment of the automated die-cutting and winding equipment for buffer paper described in this invention, the moving arm moves within a limiting groove.

[0025] This invention provides an automated die-cutting and winding device for cushioning paper, which has the following significant improvements and advantages compared with the prior art:

[0026] The screw motor is started, and through a series of transmissions, the two sets of winding devices move towards each other along the limiting groove. The pressure plate clamps the drum in the center. Then, the cylinder is started, and the cylinder rod extends, driving the square displacement seat to move linearly along the linear groove. This causes the positioning rods on each set of elastic positioners to move outward, acting on the inner surface of the drum against the curved surface. The four sets of positioning rods act simultaneously to clamp the drum internally, achieving the purpose of fixing the drum. This method can be adapted to drums of different sizes, improving the applicability of the winding equipment.

[0027] Oil is supplied to the hydraulic cylinder, and the hydraulic rod extends downward, causing the curved stop plate to extend downward into the gap. The two fit together, causing the bent part of the spring steel to bend inward, increasing the force between the curved stop plate and the gap, thus positioning the entire winding machine. This has the function of automatic braking and auxiliary positioning, improving the stability of the winding machine during operation.

[0028] When the two sets of paper-pressing cams are in corresponding positions, they are attracted by the magnets on the connecting sleeve. The connecting sleeve moves vertically along the guide post until the paired paper-pressing cams press the buffer paper in the middle. Several sets of paired paper-pressing cams are evenly distributed on both sides of the buffer paper, clamping the buffer paper and moving it to the right in a straight line to prevent the buffer paper from curling. When the buffer paper encounters wrinkles during clamping and transfer, the frictional resistance between the paper-pressing cam and the wrinkled part will cause the paper-pressing cam to deflect slightly, causing the torsion spring to twist, revealing space for the wrinkled part to automatically recover its shape, thus solving the problem of wrinkles in the buffer paper.

[0029] The winding mechanism uses the power of the rewinder to cause the No. 1 sprocket to rotate, which in turn drives the correction roller to rotate around the No. 2 outer bearing. The spiral ribs on the correction roller make a unidirectional spiral motion. By utilizing the contact action between the multiple rib surfaces and the surface of the buffer paper, the buffer paper is pulled outward. The two sets of correction rollers work together to overcome the resistance of external factors, so that the entire surface of the buffer paper is stretched evenly, preventing it from being misaligned during winding on the roll. The system is highly automated. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of an automated die-cutting and winding device for buffer paper according to the present invention, taken from one direction.

[0031] Figure 2 This is a schematic diagram of the overall structure of an automated die-cutting and winding device for buffer paper according to the present invention from another direction;

[0032] Figure 3 This is a schematic diagram of the drive structure of the winding device of the present invention;

[0033] Figure 4 This is a schematic diagram of the external structure of the winding device of the present invention;

[0034] Figure 5 This is a schematic diagram of the bottom structure of the winding device of the present invention;

[0035] Figure 6 This is a schematic diagram of the internal structure of the intermediate seat of the present invention;

[0036] Figure 7 This is a schematic diagram of the external structure of the pressure plate of the present invention;

[0037] Figure 8 This is a schematic diagram of the cylinder connection of the present invention;

[0038] Figure 9 This is a schematic diagram of the specific structure of the elastic positioner of the present invention;

[0039] Figure 10 This is a schematic diagram of the transmission structure of the correction roller in Embodiment 1 of the present invention;

[0040] Figure 11 This is a schematic diagram of the transmission structure of the transfer mechanism of the present invention;

[0041] Figure 12 This is a schematic diagram of the internal structure of the outer frame for transporting components of the present invention;

[0042] Figure 13 This is a top view of the anti-rolling structure of the present invention;

[0043] Figure 14 This is a bottom view of the anti-rolling structure of the present invention;

[0044] Figure 15 This is a schematic diagram showing the specific connection of the paper-pressing cam of the present invention;

[0045] Figure 16 This is a schematic diagram of the installation position of the correction roller in Embodiment 2 of the present invention;

[0046] Figure 17 This is a schematic diagram of the transmission structure of the correction roller in Embodiment 2 of the present invention.

[0047] In the diagram: 1. Equipment base; 2. Positioning bracket; 3. Limiting slot; 4. Roll; 5. Support platform; 6. Transfer outer frame; 7. Buffer paper; 9. Anti-curling structure; 91. Guide column; 92. Tension spring; 93. Connecting sleeve; 94. Vertical slot; 95. Locking block; 96. Magnet; 97. Paper pressing cam; 971. Rotating shaft; 972. Torsion spring; 973. Connecting bearing seat; 974. Torsion spring sleeve; 10. Double-acting lead screw; 11. First bearing 12. Screw motor; 13. Forward spiral pattern; 14. Reverse spiral pattern; 15. Winder; 20. Moving arm; 21. Screw nut sleeve; 22. Intermediate seat; 23. Guide seat; 24. Inner groove; 25. Hydraulic cylinder; 26. Hydraulic rod; 27. Mounting block; 28. Curved stop plate; 29. ​​Spring steel bending part; 30. Rotary roller; 31. No. 1 outer bearing; 32. Large gear; 33. Pressure plate; 34. Inner extension column; 35. Uniform speed motor; 36. Shaft; 37. Second bearing seat; 38. Pinion; 39. First sprocket; 40. Cylinder; 41. Cylinder rod; 42. Square displacement seat; 43. Inclined slide groove; 44. First cross-section; 45. Elastic positioner; 451. Inclined slider; 452. Second cross-section; 453. Positioning rod; 454. Spring sleeve; 455. Return spring; 456. Fitting curved surface; 50. Correcting roller; 51. Second outer bearing; 52. Second small sprocket; 53. 54. Chain; 60. Spiral rib; 61. Large sprocket; 62. Transfer chain; 63. Horizontal shaft; 64. Servo motor; 65. Synchronous gear; 66. Outer baffle; 67. Mounting bracket; 68. Tensioning wheel; 70. Vertical roller groove; 71. Motor base; 72. Drive motor; 73. Positioning bearing; 74. Limiting slide bar; 75. Adjusting spring; 81. First tensioning roller; 82. Second tensioning roller; 83. Pressure plate circular groove; 84. Rod hole; 85. Guide groove. Detailed Implementation

[0048] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0049] like Figure 1-15As shown, this embodiment provides an automated die-cutting and winding device for buffer paper, including a device base 1. A positioning bracket 2 is riveted to the upper end of the device base 1. The positioning bracket 2 is inverted U-shaped. A limiting groove 3 is horizontally opened downward inside the positioning bracket 2. A bidirectional lead screw 10 is horizontally rotatably arranged inside the limiting groove 3. Both ends of the bidirectional lead screw 10 are connected to the inner wall of the limiting groove 3 by a first bearing seat 11.

[0050] One end of the bidirectional lead screw 10 extends outward and is connected to a lead screw motor 12 via a coupling. The lead screw motor 12 can rotate in both directions. The bidirectional lead screw 10 has symmetrically distributed forward spiral threads 13 and reverse spiral threads 14. Retractors 15 are movably installed at the positions of both the forward spiral threads 13 and the reverse spiral threads 14. Figure 3 As shown.

[0051] Specifically, each winding unit 15 includes a moving arm 20, an intermediate seat 22, and a guide seat 23, such as Figure 4 and 5 As shown.

[0052] In this embodiment, the movable arm 20 moves within the limiting groove 3. A lead screw nut sleeve 21 (containing a helical nut) is installed inside the movable arm 20 for the bidirectional lead screw 10 to pass through. The movable arm 20 and the guide seat 23 are connected and fixed by an intermediate seat 22. The upper end face of the equipment base 1 is symmetrically provided with guide grooves 85 for the displacement of the guide seat 23. The two grooves are of matching size, serving as limiting and guiding mechanisms. Figure 1 , 2 As shown in Figure 4.

[0053] Furthermore, an inner groove 24 is provided at the bottom center of the guide seat 23. A hydraulic cylinder 25 is vertically installed inside the inner groove 24, and a hydraulic rod 26 is provided outwardly inside the hydraulic cylinder 25. Figure 5 As shown.

[0054] The lower end of the hydraulic rod 26 is welded with a mounting block 27, and the lower end of the mounting block 27 is welded with a curved stop plate 28. The curved stop plate 28 is approximately V-shaped. A horizontal slot is provided in the middle of the bottom of the guide groove 85 for the curved stop plate 28 to extend downward. A spring steel bent part 29 is provided in the middle of the curved stop plate 28. Figure 5 As shown.

[0055] Furthermore, a rotating roller 30 is rotatably mounted inside the intermediate seat 22. The rotating roller 30 is fixed to the inner wall of the intermediate seat 22 by a first outer bearing 31, and the rotating roller 30 rotates around the first outer bearing 31. Figure 6 and 7 As shown.

[0056] The roller 30 has a pressure plate 33 welded to its end. Two sets of winding devices 15 use the pressure plate 33 to clamp the drum 4, providing lateral positioning. The inner surface of the intermediate seat 22 has a pressure plate groove 83 for the pressure plate 33 to rotate. A portion of the pressure plate 33 extends beyond the pressure plate groove 83. Figure 4 , 6 As shown in Figure 7.

[0057] An inner extension post 34 is welded to the middle of the outwardly extending end face of the pressure plate 33. The inner extension post 34 extends into the inside of the drum 4. Figure 4 and 7 As shown.

[0058] Furthermore, a cylinder 40 is horizontally mounted at the center of the pressure plate 33. A cylinder rod 41 extends horizontally outward from the inside of the cylinder 40. A linear groove is formed at the center of the inner extension column 34, and a square displacement seat 42 is movably mounted within the linear groove. The ends of the square displacement seat 42 and the cylinder rod 41 are welded together. Figure 8 As shown.

[0059] The square displacement seat 42 has inclined grooves 43 on all four sides. Each inclined groove 43 has a certain slope, and a first tangential surface 44 is provided at the bottom. Each set of inclined grooves 43 is equipped with an elastic positioner 45, which serves as a longitudinal limiter. Figure 8 As shown.

[0060] Specifically, the elastic positioner 45 includes a slanted slider 451, a second slit surface 452, a positioning rod 453, a spring sleeve 454, a return spring 455, and a conforming curved surface 456, such as... Figure 9 As shown.

[0061] In this embodiment, the inclined slider 451 is movably disposed in the inclined groove 43. The lower end of the inclined slider 451 is provided with a second cutting surface 452 that interacts with the first cutting surface 44. The surfaces of the two cutting surfaces are smooth. The upper end of the inclined slider 451 is welded with a positioning rod 453. The outer surface of the inner extension column 34 is uniformly provided with rod holes 84 for the positioning rod 453 to extend out. The rod holes 84 play a role in limiting and guiding.

[0062] In this embodiment, a spring sleeve 454 is fixed in the middle of the positioning rod 453, and a return spring 455 (used to maintain the contact force between the two cut surfaces) is fixed between the spring sleeve 454 and the lower end of the rod hole 84 and sleeved on the outside of the positioning rod 453. The upper end of the positioning rod 453 is provided with a fitting curved surface 456 that fits against the inner surface of the drum 4.

[0063] Furthermore, a large gear 32 is sleeved at the end of the roller 30 away from the pressure plate 33, and a small gear 38 is meshed at the lower end of the large gear 32, such as... Figure 6 and7 As shown.

[0064] Specifically, the pinion 38 is sleeved in the middle of the rotating shaft 36. One end of the rotating shaft 36 is connected to a constant-speed motor 35 via a coupling. The constant-speed motor 35 is installed through the back of the intermediate seat 22 (the constant-speed motors 35 on the two sets of take-up units 15 are linked and work synchronously). The other end of the rotating shaft 36 is fixed to the inner wall of the intermediate seat 22 via a second bearing seat 37. Figure 6 , 7 As shown in Figure 10.

[0065] Among them, a sprocket 39 is also fitted onto the shaft 36, such as Figure 10 As shown.

[0066] Furthermore, an alignment roller 50 is rotatably mounted on the inner side of the intermediate seat 22, extending outwards. The outer surface of the alignment roller 50 is provided with spiral ribs 54 (the working direction of the spiral ribs 54 is designed according to actual needs). The spiral ribs 54 act on the upper edge of the buffer paper 7, moving in a spiral motion. The force component acting on the buffer paper 7 is outwards. The spiral ribs 54 have no sharp corners and will not damage the paper surface. Figure 4 , 6 As shown in Figure 10.

[0067] The straightening roller 50 is fixed to the inner wall of the second outer bearing 51 and the intermediate seat 22. A second small sprocket 52 is sleeved at the end of the straightening roller 50 away from the spiral rib 54. The first sprocket 39 and the second small sprocket 52 are connected and driven by a chain 53. Figure 10 As shown.

[0068] Furthermore, a support platform 5 is connected to the horizontal left side of the equipment base 1, and two sets of transfer outer frames 6 are symmetrically arranged on the upper end of the support platform 5, such as... Figure 1 and 2 As shown.

[0069] Each set of transport outer frame 6 has four sets of large sprockets 60 installed vertically. Two sets of large sprockets 60 at the same horizontal level are connected by a transport chain 61 to form a drive unit. Figure 11 and 12 As shown.

[0070] Specifically, each drive unit has an outer baffle 66 on its outer side. The middle of the outer baffle 66 is riveted to the inner wall of the transfer outer frame 6 via a mounting bracket 67. Several tensioning wheels 68 are evenly distributed within each drive unit, acting on the transfer chain 61. The tensioning wheels 68 ensure the tension of the transfer chain 61. The tensioning wheels 68 are mounted on the inner wall of the transfer outer frame 6. Two drive units are connected by a horizontal shaft 63, which passes through the outer baffle 66. Large sprockets 60 are symmetrically fitted onto the horizontal shaft 63. Both ends of the horizontal shaft 63 are connected to the inner wall of the transfer outer frame 6 via third bearing seats, serving a positioning function. Two sets of horizontal shafts 63 extend outwards and are fitted with synchronous gears 65. Both sets of synchronous gears 65 are located on the outer side of the transfer outer frame 6 and mesh vertically. One set of horizontal shafts 63 extends outwards and is connected to a servo motor 64 via a coupling. Figure 1 , 11 As shown in Figure 12.

[0071] Furthermore, each set of transfer chains 61 is evenly equipped with anti-rolling structures 9, such as... Figure 12 As shown.

[0072] Specifically, each anti-rolling structure 9 includes a guide post 91, a tension spring 92, a connecting sleeve 93, a vertical groove 94, a locking block 95, a magnet 96, and a paper-pressing cam 97, such as... Figure 13 and 14 As shown.

[0073] In this embodiment, the guide post 91 is vertically welded to the outer surface of the transfer chain 61. A connecting sleeve 93 is sleeved on the guide post 91. A tension spring 92 sleeved on the outside of the guide post 91 is connected between the bottom of the connecting sleeve 93 and the transfer chain 61. (When the tension spring 92 is stretched, it can generate a force to drive the connecting sleeve 93 to reset.) Vertical grooves 94 are symmetrically opened on the cylindrical surface of the guide post 91. A locking block 95 extending into the vertical groove 94 is fixed on the connecting sleeve 93. Two sets of magnets 96 are symmetrically installed at the bottom of the connecting sleeve 93, which have a certain adsorption force, slightly greater than the reset force of the tension spring 92.

[0074] The connecting sleeve 93 has a rotating groove at its end away from the guide post 91. A rotating shaft 971 is rotatably mounted in the rotating groove. The rotating shaft 971 is welded to the upper end face of the paper-pressing cam 97. The lower convex surface of the paper-pressing cam 97 acts on the buffer paper 7. The upper end of the rotating shaft 971 extends out of the rotating groove and is connected to the upper end face of the connecting sleeve 93 via a connecting bearing seat 973. The rotating shaft 971 drives the paper-pressing cam 97 to rotate around the connecting bearing seat 973. Figure 13-15 As shown.

[0075] A torsion spring 972 is sleeved in the middle of the rotating shaft 971. A torsion spring sleeve 974 for housing the torsion spring 972 is connected to the lower end of the connecting bearing seat 973. The upper end of the torsion spring 972 is fixed to the inner wall of the torsion spring sleeve 974. The paper-pressing cams 97 on different drive units are symmetrically distributed on the upper and lower surfaces of the buffer paper 7 during movement, clamping the buffer paper 7 and moving it linearly to the right. Figure 13-15 As shown.

[0076] Furthermore, a first tensioning roller 81 is installed on the left end face of the equipment base 1 to act as a tensioning roller on the buffer paper 7. Figure 1 As shown.

[0077] Furthermore, a second tension roller 82 is installed on the upper left side of the equipment base 1 to act as a tensioning roller on the buffer paper 7. Figure 1 As shown.

[0078] Furthermore, a shearing mechanism is installed on the equipment base to cut the wound roll 4.

[0079] In this embodiment, during use, the lead screw motor 12 is first started to drive the bidirectional lead screw 10 to rotate, causing the two sets of winding devices 15 to move in opposite directions along the limiting groove 3 (the lead screw nut sleeve 21 and the forward spiral thread 13 are respectively...).

[0080] (The reverse spiral pattern 14 acts) until the two sets of winding devices 15 clamp the drum 4 in the center using the pressure plate 33. At this time, the inner extension column 34 extends into the drum 4. Then, the cylinder 40 is activated, and the cylinder rod 41 extends, driving the square displacement seat 42 to move linearly along the linear groove. When the square displacement seat 42 moves, the inclined slider 451 and the inclined groove 43 on each set of elastic positioners 45 undergo relative movement (the first tangent 44 and the second tangent 452 generate a squeezing force), causing each set of The positioning rod 453 on the elastic positioner 45 moves outward (the return spring 455 is compressed), extends out of the rod hole 84, and acts on the inner cylinder surface of the drum 4 with the curved surface 456. The four sets of positioning rods 453 act simultaneously to clamp the drum 4 internally, thereby fixing the drum 4. When disassembling the drum 4, the square displacement seat 42 is first returned to its original position. The four sets of positioning rods 453 descend to their original positions under the elastic force of the return spring 455. Then, the two sets of winding devices 15 move in opposite directions, and the drum 4 can be removed.

[0081] After the fixed drum 4 is inlet oil into the hydraulic cylinder 25, the hydraulic rod 26 extends downward, driving the curved stop plate 28 to extend downward into the gap. The two fit together, and the curved stop plate 28 interacts with the inner wall of the gap, thereby causing the spring steel bent part 29 to bend inward, increasing the force between the curved stop plate 28 and the gap, and positioning the entire winding machine 15.

[0082] Then, the constant speed motor 35 is started, driving the rotating shaft 36 to rotate, causing the small gear 38 to move. Through meshing and deceleration, the large gear 32 is driven to rotate slowly. The pressure plate 33, which is coaxial with the large gear 32, moves, thereby causing the roll 4 between the two sets of winding units 15 to rotate and wind up the buffer paper 7. After being die-cut, the buffer paper 7 first enters between the two sets of transfer outer frames 6. By starting the servo motor 64, through a series of transmissions, the two sets of drive units above work counterclockwise, and the two sets of transfer chains 61 rotate counterclockwise. Through the upper and lower meshing of the two sets of synchronous gears 65, the two sets of drive units below work clockwise, and the two sets of transfer chains 61 rotate clockwise.

[0083] The anti-rolling structures 9 on the upper and lower transfer chains 61 simultaneously move towards the buffer paper 7 area (forming paired paper-pressing cams 97). When the two sets of paper-pressing cams 97 are in corresponding upper and lower positions, they are attracted by the magnets 96 on the connecting sleeve 93 (opposite poles of the upper and lower magnets attract each other). The connecting sleeve 93 moves vertically along the guide post 91 (the locking block 95 moves linearly within the vertical groove 94) until the paired paper-pressing cams 97 press the buffer paper 7 in the middle (the tension spring 92 is stretched and deformed). The transfer chain 6... Several sets of paired paper-pressing cams 97 are evenly distributed on both sides of the buffer paper 7, clamping the buffer paper 7 and moving it to the right in a straight line (the speed of the transfer chain 61 is the same as the winding speed of the roll 4). When the buffer paper 7 encounters wrinkles during the clamping and transfer process, the frictional resistance between the paper-pressing cam 97 and the wrinkled part will cause the paper-pressing cam 97 to deflect slightly, causing the torsion spring 972 to twist, revealing space for the wrinkled part to automatically recover its deformation. Then, under the action of the reset torsion force of the torsion spring 972, the paper-pressing cam 97 is driven to return to its original position.

[0084] Next, the buffer paper 7 passes through the first tension roller 81 and the second tension roller 82 in sequence. Under the tension of the two rollers, it moves towards the roll 4. When it approaches the roll 4, the two sides of the buffer paper 7 will contact the correction roller 50 respectively. When the shaft 36 rotates, the first sprocket 39 will rotate at the same time, and through the chain 53, the second small sprocket 52 will rotate, thereby driving the correction roller 50 to rotate around the second outer bearing 51. The spiral ribs 54 on the correction roller 50 make a unidirectional spiral motion. By using the contact action between the multiple rib surfaces and the surface of the buffer paper 7, the buffer paper 7 is pulled outward. The two sets of correction rollers 50 work together to make the entire surface of the buffer paper 7 evenly stretched, so as to prevent it from being misaligned when it is wound up on the roll 4. Example 2

[0085] Based on Embodiment 1, as the roll 4 is wound up, the thickness of the buffer paper 7 on the roll 4 increases, causing the contact position between the buffer paper 7 and the alignment roller 50 to gradually shift downwards until they no longer contact each other, and the alignment roller 50 loses its alignment function. To solve the above technical problems, we have the following design, such as... Figure 16-17 As shown.

[0086] Specifically, the inner surface of the intermediate seat 22 is provided with a vertical roller groove 70 for the movement of the correction roller 50. The vertical roller groove 70 extends into the interior of the intermediate seat 22 and connects to an adjustment groove. A motor seat 71 is movably installed in the adjustment groove, and the two fit together. Figure 16 and 17 As shown.

[0087] The motor base 71 has symmetrically arranged limit sliders 74 on both sides, and a track is installed on the groove wall inside the adjusting groove to act on the limit sliders 74, thus playing a limiting and guiding role. Figure 17 As shown.

[0088] The motor base 71 has a drive motor 72 horizontally mounted inside. The drive motor 72 is connected to the correction roller 50 via a positioning bearing 73. Two sets of adjusting springs 75 are symmetrically installed between the upper end face of the motor base 71 and the adjusting groove. The adjusting springs 75 are in a compressed state and have a tendency to pop out. Figure 17 As shown.

[0089] In this embodiment, the drive motor 72 works independently, causing the correction roller 50 to rotate and correct the buffer paper 7. When the contact position between the buffer paper 7 and the correction roller 50 shifts downward, the correction roller 50 loses its restraint. Under the pressure of the two sets of adjusting springs 75, the entire motor base 71 moves slightly downward along the adjusting groove (the limiting slide bar 74 moves on the track), and the position of the correction roller 50 drops, thereby maintaining the contact force between the correction roller 50 and the buffer paper 7.

[0090] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0091] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automated die-cutting and rewinding device for cushioning paper, comprising a base, characterized in that: A positioning bracket is riveted to the upper end of the equipment base. A limiting groove is opened horizontally downward inside the positioning bracket. A bidirectional lead screw is horizontally rotatably installed inside the limiting groove. Both ends of the bidirectional lead screw are connected to the inner wall of the limiting groove via a first bearing seat. One end of the bidirectional lead screw extends outward and is connected to a lead screw motor via a coupling. The bidirectional lead screw has symmetrically distributed forward and reverse spiral patterns. A winding device is movably installed at the positions of both the forward and reverse spiral patterns. Each winding device includes a movable arm, an intermediate seat, and a guide seat. The movable arm has a screw nut sleeve for a bidirectional screw to pass through inside. The movable arm and the guide seat are connected and fixed by the intermediate seat. The upper end face of the equipment base is symmetrically provided with guide grooves for the guide seat to move. The bottom center of the guide seat has an inner groove, and a hydraulic cylinder is vertically installed inside the inner groove. The intermediate seat has a rotating roller inside, which is fixed to the inner wall of the intermediate seat by an outer bearing. A pressure plate is welded to the end of the rotating roller. The two sets of winding devices use the pressure plate to clamp the roll. The inner surface of the intermediate seat has a pressure plate groove for the pressure plate to rotate. An inner extension column is welded to the middle of the outward-extending end face of the pressure plate. The inner extension column extends into the roll. The intermediate seat has a rotatable correction roller extending outward. The outer surface of the correction roller has a spiral rib. The spiral rib acts on the upper edge of the buffer paper. The equipment base is connected to a support platform on the horizontal left side. Two sets of transfer outer frames are symmetrically arranged on the upper end of the support platform. Each set of transfer outer frames has four sets of large sprockets arranged vertically. The two sets of large sprockets at the same horizontal level are connected by a transfer chain to form a drive unit. Each set of drive units has an outer baffle on its outer side. The middle part of the outer baffle is riveted to the inner wall of the transfer outer frame through a mounting bracket. The two sets of drive units are connected by a horizontal shaft. The horizontal shaft passes through the outer baffle. The large sprocket is symmetrically sleeved on the horizontal shaft. Both ends of the horizontal shaft are connected to the inner wall of the transfer outer frame through a third bearing seat. Both sets of horizontal shafts are sleeved with synchronous gears extending outward. The two sets of synchronous gears mesh with each other. One set of horizontal shafts is connected to a servo motor through a coupling. Each set of transfer chains is uniformly provided with anti-rolling structures. Each anti-rolling structure includes a guide post, a tension spring, a connecting sleeve, a vertical groove, a locking block, a magnet, and a paper-pressing cam. The guide post is vertically welded to the outer surface of the transfer chain. A connecting sleeve is fitted onto the guide post. A tension spring fitted onto the outside of the guide post is connected between the bottom of the connecting sleeve and the transfer chain. Vertical grooves are symmetrically opened on the cylindrical surface of the guide post. A locking block extending into the vertical groove is fixed on the connecting sleeve. Two sets of magnets are symmetrically installed at the bottom of the connecting sleeve.

2. The automated die-cutting and rewinding equipment for buffer paper according to claim 1, characterized in that: The hydraulic cylinder has a hydraulic rod that moves outward inside. A mounting block is welded to the lower end of the hydraulic rod. A curved stop plate is welded to the lower end of the mounting block. A slot is horizontally opened in the middle of the bottom of the guide groove for the curved stop plate to extend downward. A spring steel bend is provided in the middle of the curved stop plate.

3. The automated die-cutting and rewinding equipment for buffer paper according to claim 2, characterized in that: A cylinder is horizontally installed in the middle of the pressure plate. A cylinder rod extends horizontally outward from the inside of the cylinder. A linear groove is opened in the middle of the inner extension column. A square displacement seat is movably installed in the linear groove. The square displacement seat is welded to the end of the cylinder rod. Each of the four sides of the square displacement seat is provided with an inclined sliding groove. The bottom of the inclined sliding groove is provided with a first tangent. An elastic positioner is installed in each set of inclined sliding grooves.

4. The automated die-cutting and rewinding equipment for buffer paper according to claim 3, characterized in that: The elastic positioner includes a slanted slider, a second slit, a positioning rod, a spring sleeve, a return spring, and a conforming curved surface. The slanted slider is movably disposed within a slanted groove. The lower end of the slanted slider has a second slit that interacts with the first slit. The upper end of the slanted slider is welded with a positioning rod. The outer surface of the inner extension column is uniformly provided with rod holes for the positioning rod to extend out. A spring sleeve is fixed in the middle of the positioning rod. A return spring, sleeved on the outside of the positioning rod, is fixed between the spring sleeve and the lower end of the rod hole. The upper end of the positioning rod has a conforming curved surface that conforms to the inner surface of the drum.

5. The automated die-cutting and rewinding equipment for buffer paper according to claim 1, characterized in that: A large gear is sleeved on the end of the rotating roller away from the pressure plate. A small gear is meshed on the lower end of the large gear. The small gear is sleeved on the middle of the rotating shaft. One end of the rotating shaft is connected to a constant speed motor through a coupling. The constant speed motor is installed through the back of the intermediate seat. The other end of the rotating shaft is fixed to the inner wall of the intermediate seat through a second bearing seat.

6. The automated die-cutting and rewinding equipment for buffer paper according to claim 5, characterized in that: A first sprocket is also fitted onto the rotating shaft. The correction roller is fixed by the second outer bearing and the inner wall of the intermediate seat. A second small sprocket is fitted onto the end of the correction roller away from the spiral rib. The first sprocket and the second small sprocket are connected by a chain for transmission.

7. The automated die-cutting and rewinding equipment for buffer paper according to claim 1, characterized in that: A rotating groove is provided at the end of the connecting sleeve away from the guide post. A rotating shaft is rotatably installed in the rotating groove. The rotating shaft is welded to the upper end face of the paper-pressing cam. The lower convex surface of the paper-pressing cam acts on the buffer paper. The upper end of the rotating shaft extends out of the rotating groove and is connected to the upper end face of the connecting sleeve through a connecting bearing seat. The rotating shaft drives the paper-pressing cam to rotate around the connecting bearing seat. A torsion spring is sleeved in the middle of the rotating shaft. A torsion spring sleeve for storing the torsion spring is connected to the lower end of the connecting bearing seat. The upper end of the torsion spring is fixed to the inner wall of the torsion spring sleeve. The paper-pressing cams on different drive units are symmetrically distributed on the upper and lower surfaces of the buffer paper during the movement, clamping the buffer paper and moving it to the right in a straight line.

8. The automated die-cutting and rewinding equipment for buffer paper according to claim 1, characterized in that: The inner surface of the intermediate seat is provided with a vertical roller groove for the movement of the correction roller. The vertical roller groove extends into the interior of the intermediate seat and connects to an adjustment groove. A motor seat is movably installed in the adjustment groove. Limiting slides are symmetrically arranged on both sides of the motor seat. A track acting on the limiting slides is installed on the groove wall of the adjustment groove. A drive motor is horizontally installed inside the motor seat. The drive motor is connected to the correction roller through a positioning bearing. Two sets of adjusting springs are symmetrically installed between the upper end face of the motor seat and the adjustment groove.

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