Automatic web stagger cutting and stacking device

Abstract

The present application relates to the field of cutting facilities, in particular to a kind of automatic misplacement cutting and stacking device of web, including cutting table, the upper part of the rear end of cutting table is fixedly installed with fixed frame, the lower part of the rear end of cutting table is provided with stacking piece, the upper end of the middle part of fixed frame is fixedly installed with servo slide, the upper end of the slide of servo slide is fixedly installed with bearing frame, the lower end of bearing frame is fixedly installed with sliding seat, the lower part of sliding seat is slidably installed with hollow seat, the inside of hollow seat is elastically installed with clamping block, the lower end of sliding seat is linearly arrayed and extends multiple triangular teeth, clamping block is engaged with triangular teeth, the lower part of hollow seat is provided with cutting piece, the upper part of the side of hollow seat is fixedly installed with wheel frame, the end of wheel frame is installed with knife-moving wheel.The present application facilitates the subsequent processing to the single web to be taken, while also facilitating blanking.

Description

Technical Field

[0001] This invention relates to the field of cutting facilities, specifically to an automatic staggered cutting and stacking device for roll paper. Background Technology

[0002] Paper rolls are continuous strips of paper made from pulp and wound into a cylindrical shape. They are widely used in printing, packaging, and other industries. For production purposes, after being flattened, paper rolls are typically cut to the required length and stacked using cutting and stacking equipment.

[0003] However, in the actual cutting and stacking process, after the roll of paper is unwound and flattened, it is usually cut to a fixed length and stacked layer by layer. The paper stacks cut and stacked in this way have flat and regular edges on all four sides, and the papers are tightly attached to each other, making it difficult to pick up individual sheets of paper during subsequent processing, which brings inconvenience to subsequent processing. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of the prior art by proposing an automatic misaligned cutting and stacking device for roll paper.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic staggered cutting and stacking device for roll paper, comprising a cutting table, a fixed frame fixedly installed at the upper rear end of the cutting table, a stacking component provided at the lower rear end of the cutting table, a servo slide fixedly installed at the middle upper end of the fixed frame, a support frame fixedly installed at the upper upper end of the servo slide, a slide block fixedly installed at the lower end of the support frame, a hollow seat slidably installed at the lower part of the slide block, a locking block elastically installed inside the hollow seat, a plurality of triangular teeth extending linearly from the middle lower end of the slide block, the locking block engaging with the triangular teeth, a cutting component provided at the lower part of the hollow seat, a wheel frame fixedly installed on the upper side of the hollow seat, a knife-moving wheel installed at the end of the wheel frame, and knife-moving top plates obliquely fixedly installed at both sides of the upper end of the fixed frame, the two knife-moving top plates being arranged oppositely, and a paper clamping component provided at the upper end of the cutting table.

[0006] Preferably, a locking spring is fixedly installed at the lower end of the locking block, and the lower end of the locking spring is fixed to the inner bottom surface of the hollow seat.

[0007] Preferably, the paper clamping component includes a main support plate fixedly installed on the upper end of the cutting table, a secondary support plate fixedly installed on the upper end of the cutting table behind the main support plate, a clamping frame provided above the main support plate and above the secondary support plate, frame ears fixedly installed on both sides of the upper end of the clamping frame, the frame ears being elastically connected to the cutting table, a pressure frame bridge plate fixedly installed between the front ends of the two frame ears, a pressure frame wheel being fitted onto the pressure frame bridge plate, the pressure frame wheel being connected to the front end of the support frame, and two limiting plates symmetrically extending from the upper end of the main support plate.

[0008] Preferably, stepped columns are fixedly installed on both sides of the cutting table, the frame lug is slidably installed on the small diameter section of the stepped column, and a return spring is wound around the small diameter section of the stepped column. The two ends of the return spring are respectively fixed to the stepped surface of the stepped column and the lower end of the frame lug.

[0009] Preferably, the cutting component includes a servo motor fixedly installed at the lower rear end of the hollow base. The output end of the servo motor extends through the front end of the hollow base and is rotatably engaged with the hollow base. A cutter is coaxially fixedly installed at the output end of the servo motor, and the lower part of the cutter is located inside the clamping frame, between the main support plate and the auxiliary support plate.

[0010] Preferably, the stacking component includes two protruding frames that extend symmetrically at the lower rear end of the cutting table, a top seat is elastically installed between the two protruding frames, a servo push cylinder is provided above the top seat, the servo push cylinder is fixed to the fixed frame, a pressure cap is fixedly installed on the telescopic end of the servo push cylinder, and a paper support frame is provided behind each of the two limiting plates, the paper support frame is fixed to the auxiliary support plate.

[0011] Preferably, an upright is fixedly installed at the upper end of one of the extension frames, a toggle shaft is rotatably installed through the end of the upright, a pawl is fixedly installed on the lower part of the outer surface of the toggle shaft, and a lug extends from the front edge of the top seat, the lug being on the same side as the upright.

[0012] Preferably, guide rods are slidably mounted through both ends of the top seat, the lower end of the guide rod is fixed to the extension frame, and a tightening spring is wound around the outside of the guide rod. The two ends of the tightening spring are respectively fixed to the lower end of the top seat and the upper end of the extension frame.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The servo slide can drive the cutter to move laterally to cut the roll paper. After cutting, the servo slide continues to drive the cutter to move laterally. At this time, the shifting blade wheel will contact the shifting blade top plate on one side and roll along the shifting blade top plate. Under the push of the shifting blade top plate on one side, the hollow seat is driven to slide backward on the slide block, thereby driving the cutter to move backward a small distance. Then, the servo slide drives the backward-moving cutter to move laterally in the opposite direction to cut the roll paper. After cutting, the servo slide continues to drive the cutter to move laterally in the opposite direction. At this time, the shifting blade wheel will contact the other... One side of the moving blade top plate contacts and rolls along the other side of the moving blade top plate, so that the hollow seat is driven to slide forward on the slide block under the push of the other side of the moving blade top plate, thereby driving the cutter forward to its original position. Then the servo slide drives the cutter that has moved forward to its original position to move sideways to cut the roll paper. This is repeated to automatically adjust the front and rear position of the cutter after a single cut, so as to perform staggered cutting of the roll paper, so that after the cut and stacked, one side of two adjacent roll papers can be staggered, which makes it easier to pick up the individual roll papers in subsequent processing.

[0014] 2. After a certain thickness of roll paper is stacked on the top seat, the pressure cover can be moved down by the servo push cylinder to press the stacked roll paper and make it detach from the bottom of the paper support frame. At this time, the top seat is just below the stop claw. Then the servo push cylinder stops working, and then the toggle shaft can be rotated to turn the stop claw above the stop ear. Then the servo push cylinder drives the pressure cover to move up and reset. At this time, the stop ear will press against the bottom of the stop claw, limiting the top seat. The top seat will not continue to move up due to the elastic force of the tension spring, that is, it will not press the roll paper against the bottom of the paper support frame again, leaving a gap between the roll paper and the paper support frame. Then the material tray can be pulled to remove the stacked roll paper, avoiding the phenomenon that the roll paper is difficult to remove due to pressing against the paper support frame, thus facilitating the unloading. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial view of the present invention; Figure 3 This is a rear view of the present invention; Figure 4 For the present invention Figure 1 Enlarged view of A in the middle; Figure 5 For the present invention Figure 3 Enlarged view of B in the middle; Figure 6 This is a stacked view of the roll paper of the present invention; Figure 7 For the present invention Figure 3 Enlarged view of C in the middle; Figure 8 This is a schematic diagram of the support frame of the present invention; Figure 9 This is an internal view of the hollow base of the present invention.

[0016] The components represented by each number in the attached diagram are listed below: 1. Cutting table; 2. Main support plate; 3. Clamping frame; 4. Stepped column; 5. Pressure frame bridge plate; 6. Servo slide; 7. Servo push cylinder; 8. Roll paper; 9. Secondary support plate; 10. Paper support frame; 11. Pressure cover; 12. Limiting plate; 13. Top seat; 14. Material tray; 15. Fixing frame; 16. Knife moving top plate; 17. Extension frame; 18. Stand; 19. Claw; 20. Actuating shaft; 21. Tightening spring; 22. Guide rod; 23. Lug; 24. Frame lug; 25. Return spring; 26. Bearing frame; 27. Knife moving wheel; 28. Pressure frame wheel; 29. ​​Cutting knife; 30. Clamping block; 31. Engaging spring; 32. Hollow seat; 33. Triangular tooth; 34. Slide; 35. Wheel frame; 36. Servo motor. Detailed Implementation

[0017] 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.

[0018] This invention provides a technical solution: such as Figure 1 - Figure 9The automatic staggered cutting and stacking device for roll paper shown includes a cutting table 1. A fixing frame 15 is fixedly installed on the upper rear end of the cutting table 1, which serves to fix it. A stacking component is provided on the lower rear end of the cutting table 1. A servo slide 6 is fixedly installed on the middle upper end of the fixing frame 15. The servo slide 6 can drive the cutting component to move laterally for cutting. A support frame 26 is fixedly installed on the upper part of the servo slide 6. A slide block 34 is fixedly installed on the lower end of the support frame 26, which serves to fix the slide block 34. A hollow seat 32 is slidably installed on the lower part of the slide block 34, which serves to allow the hollow seat 32 to slide. The hollow seat 32 has an internal elastic support. The slide block 34 is equipped with a locking block 30. Multiple triangular teeth 33 extend linearly from the lower center of the slide block 34. The locking block 30 engages with the triangular teeth 33. When the hollow seat 32 is pushed and slides, the locking block 30 will automatically disengage from the triangular teeth 33, guided by the inclined side of the triangular teeth 33, allowing the hollow seat 32 to slide normally. When the hollow seat 32 is not pushed by an external force, the locking block 30 will re-engage with the triangular teeth 33 under the action of elasticity, locking the hollow seat 32. A cutting element is provided at the lower part of the hollow seat 32. A wheel frame 35 is fixedly installed on the upper side of the hollow seat 32. A cutting wheel 27 is installed at the end of the wheel frame 35, which serves to support the cutting wheel 27. The upper two edges of the fixed frame 15 are both inclinedly fixed with blade-shifting top plates 16, which are arranged oppositely. The upper end of the cutting table 1 is equipped with a paper clamping component. The servo slide 6 can drive the cutter 29 to move laterally to cut the roll paper 8. After cutting, the servo slide 6 continues to drive the cutter 29 to move laterally. At this time, the blade-shifting wheel 27 will contact the blade-shifting top plate 16 on one side and roll along the blade-shifting top plate 16 on one side. Under the push of the blade-shifting top plate 16 on one side, the hollow seat 32 is driven to slide backward on the slide 34, thereby driving the cutter 29 to move backward a small distance. Then, the servo slide 6 drives the backward-moving cutter 29 to move laterally in the opposite direction to cut the roll paper 8. After cutting, the servo slide 6 continues to drive the cutter 29 to move laterally in the opposite direction. At this time, the shifting blade wheel 27 will contact the shifting blade top plate 16 on the other side and roll along the shifting blade top plate 16 on the other side. Under the push of the shifting blade top plate 16 on the other side, the hollow seat 32 is driven to slide forward on the slide 34, thereby driving the cutter 29 to move forward to its original position. Then, the servo slide 6 drives the cutter 29, which has moved forward to its original position, to move laterally to cut the roll paper 8. This process is repeated to automatically adjust the front and rear positions of the cutter 29 after each cut, so as to perform staggered cutting of the roll paper 8. After cutting and stacking, one side of two adjacent roll paper 8 can be staggered, which makes it easier to pick up a single roll paper 8 during subsequent processing.

[0019] A locking spring 31 is fixedly installed at the lower end of the locking block 30. The lower end of the locking spring 31 is fixed to the inner bottom surface of the hollow seat 32. The locking spring 31 serves to engage the locking block 30 with the triangular tooth 33.

[0020] The paper clamping device includes a main support plate 2 fixedly installed on the upper end of the cutting table 1. A secondary support plate 9 is fixedly installed on the upper end of the cutting table 1 behind the main support plate 2. The main support plate 2 and the secondary support plate 9 can support the roll of paper 8. A clamping frame 3 is provided above the main support plate 2 and above the secondary support plate 9. Frame ears 24 are fixedly installed on both sides of the upper end of the clamping frame 3. The frame ears 24 serve as a connector and are elastically connected to the cutting table 1. A frame pressure bridge plate is fixedly installed between the front ends of the two frame ears 24. 5. A frame pressing wheel 28 is attached to the frame pressing plate 5. The frame pressing wheel 28 is connected to the front end of the support frame 26. The frame pressing wheel 28 moves to the side and rolls on the frame pressing plate 5. When the frame pressing wheel 28 rolls to the protruding part of the frame pressing plate 5, it will press the frame pressing plate 5 downward, thereby driving the clamping frame 3 to move downward, so as to automatically clamp the roll paper 8 on the main support plate 2 and the auxiliary support plate 9. Two limiting plates 12 extend symmetrically from the upper end of the main support plate 2. The limiting plates 12 play the role of limiting the roll paper 8.

[0021] Both sides of the cutting table 1 are fixedly installed with stepped columns 4. The frame lugs 24 are slidably installed on the small diameter section of the stepped columns 4. The cooperation between the stepped columns 4 and the frame lugs 24 can guide the clamping frame 3. The small diameter section of the stepped columns 4 is wound with a return spring 25. The two ends of the return spring 25 are fixed to the stepped surface of the stepped column 4 and the lower end of the frame lugs 24, respectively. The return spring 25 can reset the clamping frame 3.

[0022] The cutting component includes a servo motor 36 fixedly installed at the lower rear end of the hollow base 32. The output end of the servo motor 36 extends through the front end of the hollow base 32 and rotates with the hollow base 32. A cutter 29 is coaxially fixedly installed at the output end of the servo motor 36. The servo motor 36 can drive the cutter 29 to rotate for cutting. The lower part of the cutter 29 is located inside the clamping frame 3, between the main support plate 2 and the auxiliary support plate 9.

[0023] The stacking component includes two symmetrically extending brackets 17 at the lower rear end of the cutting table 1. A top seat 13 is elastically installed between the two extending brackets 17. Placing the material tray 14 on the top seat 13 allows the roll paper 8 to be stacked on the material tray 14, so that the stacked roll paper 8 can be removed directly by picking up the material tray 14 later. A positioning groove can be opened on the top seat 13 to position the material tray 14. A servo push cylinder 7 is provided above the top seat 13. The servo push cylinder 7 is fixed to the fixed frame 15. A pressure cover 11 is fixedly installed on the telescopic end of the servo push cylinder 7. The servo push cylinder 7 can drive the pressure cover 11 to move down to press the roll paper 8. A paper support frame 10 is provided behind each of the two limiting plates 12. The paper support frame 10 can position the conveyed roll paper 8 on the one hand, and press the stacked roll paper 8 on the other hand, so that they are tightly stacked together. The paper support frame 10 is fixed to the auxiliary support plate 9.

[0024] One of the extension frames 17 has a support frame 18 fixedly installed at its upper end. A pivot shaft 20 is rotatably mounted through the end of the support frame 18. The support frame 18 serves to support the pivot shaft 20. A pawl 19 is fixedly installed on the lower part of the outer surface of the pivot shaft 20. An ear 23 extends from the front edge of the top seat 13 and is on the same side as the support frame 18. When a roll of paper 8 of a certain thickness is stacked on the top seat 13, the pressure cover 11 can be moved down by the servo push cylinder 7 to press the stacked roll of paper 8, causing the roll of paper 8 to detach from the lower end of the paper support frame 10. At this time, the top seat 13 is just below the pawl 19. Then the servo push cylinder... 7. Stop working, then rotate the actuating shaft 20 to turn the pawl 19 above the lug 23. Then, the servo push cylinder 7 drives the pressure cover 11 to move up and reset. At this time, the lug 23 will press against the lower end of the pawl 19, limiting the top seat 13. The top seat 13 will not continue to move up due to the elastic force of the tension spring 21, that is, it will not press the roll paper 8 against the lower end of the paper support frame 10 again, leaving a gap between the roll paper 8 and the paper support frame 10. Then, pull the material tray 14 to remove the stacked roll paper 8, avoiding the phenomenon that the roll paper 8 is difficult to remove because it is pressed against the paper support frame 10, thus facilitating the unloading.

[0025] Guide rods 22 are slidably installed through both ends of the top seat 13. The lower end of the guide rod 22 is fixed to the extension frame 17. The guide rod 22 serves to guide the top seat 13. A tensioning spring 21 is wound around the outside of the guide rod 22. The two ends of the tensioning spring 21 are fixed to the lower end of the top seat 13 and the upper end of the extension frame 17, respectively. The tensioning spring 21 can push the top seat 13 upward, so that the roll paper 8 stacked on the material tray 14 is pressed tightly against the lower end of the paper support frame 10.

[0026] During cutting, the flattened roll of paper 8 is conveyed to the main support plate 2 and the auxiliary support plate 9 using an external conveying system. When the end of the roll of paper 8 touches the rear end of the paper support frame 10, the conveying of the roll of paper 8 stops. Then, the servo slide 6 drives the cutter 29 to move laterally. At this time, the pressure frame roller 28 moves laterally and rolls on the pressure frame bridge plate 5. When the pressure frame roller 28 rolls to the protruding part of the pressure frame bridge plate 5, it presses the pressure frame bridge plate 5 downwards, thereby driving the clamping frame 3 to move downwards, automatically clamping the roll of paper 8 onto the main support plate 2 and the auxiliary support plate 9. Then, the servo slide 6 continues to drive the cutter 29 to move laterally to contact the roll of paper 8 for cutting. During this process, the pressure frame roller 28 continues to roll on the protruding part of the pressure frame bridge plate 5 to maintain the clamping of the roll of paper 8. After the paper 8 is cut, the servo slide 6 continues to drive the cutter 29 to move sideways. At this time, the pressure frame roller 28 will disengage from the protruding part of the pressure frame bridge plate 5, causing the pressure frame bridge plate 5 to move upward and reset under the action of the reset spring 25, so as to loosen the clamping of the roll paper 8. At the same time, the knife-moving roller 27 contacts the knife-moving top plate 16 on one side and rolls along the knife-moving top plate 16 on one side, so as to drive the hollow seat 32 to slide backward on the slide 34 under the push of the knife-moving top plate 16 on one side, thereby driving the cutter 29 to move backward a small distance. Then, the servo push cylinder 7 drives the pressure cover 11 to move down, so as to press the cut roll paper 8 onto the material tray 14 from the middle of the roll paper 8. Then, the servo push cylinder 7 continues to drive the pressure cover 11 to move down, so as to push the cut roll paper 8 and the top seat 13 down synchronously. During the movement, the edge of the roll of paper 8 will slightly bend and detach from the paper support frame 10 and the auxiliary support plate 9. After detachment, the roll of paper 8 will recover and flatten under its own elasticity. Then, the servo push cylinder 7 will drive the pressure cover 11 to move upward. At this time, the top spring 21 will push the top seat 13 to move upward, so that the roll of paper 8 stacked on the material tray 14 will be pressed against the lower end of the paper support frame 10. Then, the servo push cylinder 7 will drive the pressure cover 11 to continue to move upward and reset, so that it will detach from the upper end of the roll of paper 8. Then, the roll of paper 8 will continue to be conveyed. When the end of the roll of paper 8 touches the rear end of the paper support frame 10, the conveying of the roll of paper 8 will stop. Then, the servo slide 6 will drive the rearward-moving cutter 29 to move in the opposite direction to cut the roll of paper 8. During this process, the clamping frame 3 will move downward and repeat the above operation automatically. After clamping the roll of paper 8 and cutting it, the servo slide 6 continues to drive the cutter 29 to move in the opposite direction. At this time, the moving blade wheel 27 will contact the moving blade top plate 16 on the other side and roll along the moving blade top plate 16 on the other side. Under the push of the moving blade top plate 16 on the other side, the hollow seat 32 is driven to slide forward on the slide 34, thereby driving the cutter 29 to move forward to its original position. Then, the servo push cylinder 7 drives the pressure cover 11 to move down again to repeat the above operation, stacking the cut roll of paper 8 on the material tray 14. This process is repeated to automatically adjust the front and rear positions of the cutter 29 after each cut, so as to perform staggered cutting of the roll of paper 8. After cutting and stacking, one side of two adjacent rolls of paper 8 can be staggered, which makes it easier to pick up a single roll of paper 8 during subsequent processing.

[0027] 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.

[0028] 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 automatic staggered cutting and stacking device for roll paper, comprising a cutting table (1), characterized in that: A fixing frame (15) is fixedly installed on the upper rear end of the cutting table (1), and a stacking component is provided on the lower rear end of the cutting table (1). A servo slide (6) is fixedly installed on the middle upper end of the fixing frame (15). A support frame (26) is fixedly installed on the upper part of the slide of the servo slide (6). A slide block (34) is fixedly installed on the lower end of the support frame (26). A hollow seat (32) is slidably installed on the lower part of the slide block (34). A locking block (30) is elastically installed inside the hollow seat (32). The lower middle part of the hollow seat (32) has a linear array of multiple triangular teeth (33), the locking block (30) engages with the triangular teeth (33), the lower part of the hollow seat (32) is provided with a cutting component, the upper side of the hollow seat (32) is fixedly installed with a wheel frame (35), the end of the wheel frame (35) is installed with a knife-moving wheel (27), the upper two sides of the fixed frame (15) are both inclinedly fixedly installed with knife-moving top plates (16), the two knife-moving top plates (16) are arranged in opposite directions, and the upper end of the cutting table (1) is provided with a paper clamping component.

2. The automatic staggered cutting and stacking device for roll paper according to claim 1, characterized in that: A locking spring (31) is fixedly installed at the lower end of the locking block (30), and the lower end of the locking spring (31) is fixed to the inner bottom surface of the hollow seat (32).

3. The automatic staggered cutting and stacking device for roll paper according to claim 1, characterized in that: The paper clamping component includes a main support plate (2) fixedly installed on the upper end of the cutting table (1). A secondary support plate (9) is fixedly installed on the upper end of the cutting table (1) behind the main support plate (2). A clamping frame (3) is provided above the main support plate (2) and above the secondary support plate (9). Frame ears (24) are fixedly installed on both sides of the upper end of the clamping frame (3). The frame ears (24) are elastically connected to the cutting table (1). A pressure frame bridge plate (5) is fixedly installed between the front ends of the two frame ears (24). A pressure frame wheel (28) is attached to the pressure frame bridge plate (5). The pressure frame wheel (28) is connected to the front end of the support frame (26). Two limiting plates (12) extend symmetrically from the upper end of the main support plate (2).

4. The automatic staggered cutting and stacking device for roll paper according to claim 3, characterized in that: Both sides of the cutting table (1) are fixedly installed with stepped columns (4). The frame lug (24) is slidably installed on the small diameter section of the stepped column (4). The small diameter section of the stepped column (4) is wound with a return spring (25). The two ends of the return spring (25) are respectively fixed to the stepped surface of the stepped column (4) and the lower end of the frame lug (24).

5. The automatic staggered cutting and stacking device for roll paper according to claim 3, characterized in that: The cutting component includes a servo motor (36) fixedly installed at the lower rear end of the hollow seat (32). The output end of the servo motor (36) extends through the front end of the hollow seat (32). The output end of the servo motor (36) is rotatably engaged with the hollow seat (32). A cutter (29) is coaxially fixedly installed at the output end of the servo motor (36). The lower part of the cutter (29) is located inside the clamping frame (3) between the main support plate (2) and the auxiliary support plate (9).

6. The automatic staggered cutting and stacking device for roll paper according to claim 3, characterized in that: The stacked components include two extendable frames (17) symmetrically extending at the lower rear end of the cutting table (1). A top seat (13) is elastically installed between the two extendable frames (17). A servo push cylinder (7) is provided above the top seat (13). The servo push cylinder (7) is fixed to the fixed frame (15). A pressure cover (11) is fixedly installed at the telescopic end of the servo push cylinder (7). A paper support frame (10) is provided behind each of the two limiting plates (12). The paper support frame (10) is fixed to the auxiliary support plate (9).

7. The automatic staggered cutting and stacking device for roll paper according to claim 6, characterized in that: One of the extended brackets (17) has a stand (18) fixedly installed at its upper end. A toggle shaft (20) is rotatably installed through the end of the stand (18). A claw (19) is fixedly installed on the lower part of the outer surface of the toggle shaft (20). A lug (23) extends from the front edge of the top seat (13). The lug (23) is on the same side as the stand (18).

8. The automatic staggered cutting and stacking device for roll paper according to claim 6, characterized in that: Guide rods (22) are slidably installed through both ends of the top seat (13). The lower end of the guide rod (22) is fixed to the extension frame (17). A tightening spring (21) is wound around the outside of the guide rod (22). The two ends of the tightening spring (21) are fixed to the lower end of the top seat (13) and the upper end of the extension frame (17), respectively.

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