An automatic paper stacking and receiving mechanism and a waste removal flatbed die-cutting machine

Abstract

This invention relates to the field of paper receiving and palletizing technology, specifically to an automatic paper receiving mechanism and a waste removal flatbed die-cutting machine, comprising: a support frame and a fixed plate fixed on the support frame; a paper feeding assembly slidably mounted on the support frame and disposed on the fixed plate; a guide plate connected to the paper feeding assembly; a rotating clamping assembly disposed on the fixed plate; an upper pressure plate connected to the rotating clamping assembly; and a lower pressing and smoothing assembly disposed on the rotating clamping assembly; a pressure roller connected to the lower pressing and smoothing assembly; and a guide assembly also disposed on the rotating clamping assembly. When the rotating clamping assembly controls the upper pressure plate to clamp the paper box, the lower pressing and smoothing assembly controls the pressure roller through the guide assembly to compact and smooth the paper box, thereby avoiding the problem of mismatch between the stacking height and the downward movement rate of the support plate due to unevenness of the paper box during palletizing.

Description

Technical Field

[0001] This invention relates to the field of paper receiving and palletizing technology, specifically an automatic paper receiving mechanism and a waste removal flatbed die-cutting machine. Background Technology

[0002] Flatbed die-cutting machines are key equipment in the printing and packaging industry used for precise cutting, creasing, and molding of materials such as cardboard and corrugated cardboard.

[0003] During the processing, the cardboard or box blank to be processed is usually fed into the die-cutting machine. After positioning, the upper template with the die and creasing line performs a punching on the material under great pressure to complete all the cutting, creasing, and waste removal processes. Finally, the finished single cardboard box is discharged from the machine.

[0004] After processing, the finished cardboard boxes usually need to be neatly stacked into stacks for subsequent packaging, handling or direct delivery. In the prior art, stacking usually involves setting up a conveyor belt and using gravity or mechanical pushing to gather the cardboard boxes onto a platform, then aligning them with baffles, and finally stacking them by a lifting mechanism or robotic arm.

[0005] However, die-cut cardboard boxes, especially those with complex creases, may have slight warping or deformation. As the boxes are stacked, the actual height of the stack will inevitably be higher than the theoretical height. Furthermore, as the number of layers increases, the irregular cumulative error will become larger and larger, eventually exceeding the height of the cardboard box outlet, causing problems such as paper jams and misaligned stacks. Summary of the Invention

[0006] The purpose of this invention is to provide an automatic paper stacking and receiving mechanism and a waste removal flatbed die-cutting machine to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] An automatic paper stacking and receiving mechanism includes:

[0009] A bracket, and a fixing plate fixed on the bracket, with a load-bearing plate slidably mounted on the bracket;

[0010] Also includes:

[0011] A paper feeding assembly is mounted on the fixed plate, and a guide plate is connected to the paper feeding assembly;

[0012] A rotating clamping assembly is disposed on the fixed plate, and an upper pressure plate is connected to the rotating clamping assembly. The rotating clamping assembly can control the upper pressure plate to perform clamping actions on the paper box.

[0013] A pressure smoothing component is disposed on the rotary clamping component. A pressure roller is connected to the pressure smoothing component. A guide component is also disposed on the rotary clamping component. The pressure smoothing component can drive the pressure roller to perform a reciprocating oscillating motion when the rotary clamping component moves, and the height of the pressure roller can be adjusted by the guide component.

[0014] As a further aspect of the present invention: the paper feeding assembly includes a rotating rod rotatably mounted on the fixed plate, and a first follower rod and a second follower rod that are equidistantly distributed on the rotating rod, with a connecting plate hinged between the two first follower rods.

[0015] As a further embodiment of the present invention: a lower pressure plate is hinged to the second follower rod, a tension spring is hinged to the fixed plate and hinged to the lower pressure plate, a deflector rod is rotatably mounted on the fixed plate, the deflector rod is fixedly connected to the guide plate, and a deflector wheel that abuts against the lower pressure plate is fixed on the deflector rod.

[0016] As a further embodiment of the present invention: the rotary clamping assembly includes a rotating sleeve and a transmission rod rotatably mounted on the fixed plate, a guide post is fixed on the fixed plate, a first movable plate is fixed on the rotating sleeve, a second movable plate is rotatably mounted on the guide post, and the first movable plate and the second movable plate are hinged to the upper pressure plate.

[0017] As a further embodiment of the present invention: the rotary clamping assembly further includes a follower tooth fixed on the first movable plate, the transmission rod has a transmission tooth that meshes with the follower tooth on its axial sliding surface, a fixing ring is fixed on the transmission rod, and a first spring is sleeved on the transmission rod, with the two ends of the first spring abutting against the fixing ring and the transmission tooth respectively.

[0018] As a further embodiment of the present invention: the pressing and smoothing assembly includes a follower plate fixed on the transmission rod, a support sleeve fixed on the follower plate, a support rod axially sliding inside the support sleeve, and a pressure roller rotatably mounted at the end of the support rod.

[0019] As a further embodiment of the present invention: a groove is formed on the outer circumferential wall of the support sleeve, a limiting post and a limiting ring are fixed on the support rod and slidably connected to the groove, and a third spring is sleeved on the support sleeve, with the two ends of the third spring abutting against the follower plate and the limiting ring respectively.

[0020] As a further embodiment of the present invention: the guiding component includes a support plate fixed on the guide post and rotatably connected to the transmission rod, the support plate having a guide groove formed thereon, the guide groove being slidably engaged with the limiting post.

[0021] As a further embodiment of the present invention: a baffle is fixed on the support plate, a receiving rod is slidably connected on the baffle, a support ring and a limiting plate are fixed on the receiving rod, the support ring abuts against the baffle, the limiting plate abuts against the limiting post, and a second spring is sleeved on the receiving rod, with the two ends of the second spring abutting against the baffle and the limiting plate respectively.

[0022] A waste-cleaning flatbed die-cutting machine includes:

[0023] The paper feeding mechanism is used to feed paper boxes.

[0024] The bridge mechanism is used to transport the loaded cardboard boxes to the processing position.

[0025] The creasing and die-cutting mechanism is used for die-cutting paper boxes;

[0026] The waste removal mechanism is used to separate the molded and cut cardboard boxes from the waste materials.

[0027] It also includes the aforementioned automatic paper stacking and receiving mechanism.

[0028] Compared with the prior art, the beneficial effects of the present invention are: the present invention realizes continuous automation of the paper box from conveying to stable dropping and initial lateral stacking through the paper feeding assembly. When the paper box is discharged from the die-cutting machine, it first falls on the horizontal guide plate and is guided to the direction of the fixed baffle. At the critical moment when the center of gravity of the paper box crosses the support point of the guide plate and is about to fall, the paper feeding assembly is activated, and the guide plate deflects downward, so that the paper box falls smoothly and controllably completely on the support plate, avoiding the bouncing and displacement caused by free fall.

[0029] By coordinating the rotating clamping component and the pressing and smoothing component, layer-by-layer compaction is achieved during the stacking process. After a single cardboard box is stacked in place, the mechanism does not immediately stack the next layer. Instead, it first initiates the compaction process. The rotating clamping component drives the upper pressure plate to press down, tightly pressing and clamping the stacked cardboard boxes onto the support plate, thus preventing them from moving during subsequent rolling compaction. Subsequently, the compaction of the cardboard boxes by the pressure rollers ensures that the cardboard boxes will not be stacked unevenly, causing the stacking height to exceed the horizontal height of the guide plate and thus preventing jamming.

[0030] Under the guidance of the guide components, the pressure rollers gently contact the cardboard box at a controlled and slow speed, avoiding rigid impact. In this way, the warping and minor protrusions of the cardboard box can be effectively flattened, while avoiding crushing of the cardboard box's creases or surface graphics due to sudden or excessive pressure. Attached Figure Description

[0031] Figure 1 A schematic diagram of one embodiment of a waste removal flatbed die-cutting machine.

[0032] Figure 2 This is a schematic diagram of one embodiment of an automatic paper stacking mechanism.

[0033] Figure 3 This is a structural schematic diagram from another angle of one embodiment of the automatic paper stacking mechanism.

[0034] Figure 4 for Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0035] Figure 5 This is a schematic diagram showing the connection relationship between the paper feeding assembly, the rotating clamping assembly, the pressing and smoothing assembly, and the partial guiding assembly in one embodiment of an automatic paper stacking mechanism.

[0036] Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point B.

[0037] Figure 7 This is a schematic diagram of the paper feeding component in one embodiment of an automatic paper stacking mechanism.

[0038] Figure 8 This is a schematic diagram of the structure of a rotating clamping component, a pressing and smoothing component, and a partial guiding component in one embodiment of an automatic paper stacking mechanism.

[0039] Figure 9 for Figure 8 Another structural diagram from another angle.

[0040] Figure 10 This is a schematic diagram of the structure of the pressing and smoothing component and part of the guiding component in one embodiment of the automatic paper stacking mechanism.

[0041] Figure 11 This is a schematic diagram of the structure of the guide component in one embodiment of an automatic paper stacking mechanism.

[0042] Figure 12 This is an exploded view of a portion of the pressing and smoothing component in one embodiment of an automatic paper stacking mechanism.

[0043] In the diagram: 1. Paper feeding mechanism; 2. Bridge mechanism; 3. Creasing and die-cutting mechanism; 4. Waste removal mechanism; 5. Support; 6. Fixed plate; 7. Bearing plate; 8. Rotating rod; 9. First follower rod; 10. Connecting plate; 11. Second follower rod; 12. Lower pressure plate; 13. Tension spring; 14. Oscillating rod; 1401. Oscillating wheel; 15. Guide plate; 16. Gear; 1601. Connecting rod; 17. Rack plate; 18. Movable baffle; 19. Guide column; 20. Rotating sleeve; 21. First movable plate; 2101. Follower gear; 22. Second movable plate; 23. Upper... 24. Pressure plate; 24. Transmission rod; 2401. Transmission gear; 2402. Fixing ring; 25. First spring; 26. Follower plate; 27. Support sleeve; 2701. Slot; 28. Support rod; 2801. Limiting post; 2802. Limiting ring; 29. ​​Pressure roller; 30. Support plate; 3001. First arc groove; 3002. First inclined groove; 3003. Second arc groove; 3004. Second inclined groove; 31. Baffle; 32. Receiving rod; 3201. Support ring; 33. Limiting plate; 34. Second spring; 35. Third spring; 36. Fixing baffle. Detailed Implementation

[0044] 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.

[0045] Furthermore, elements in this invention are referred to as being "fixed to" or "set on" another element, which may be directly on the other element or may also include an intervening element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or may also include an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.

[0046] Please see Figures 1-12 In this embodiment of the invention, an automatic paper stacking mechanism includes:

[0047] The bracket 5 and the fixing plate 6 fixed on the bracket 5, and the bearing plate 7 is slidably installed on the bracket 5;

[0048] Also includes:

[0049] A paper feeding assembly is mounted on the fixed plate 6, and a guide plate 15 is connected to the paper feeding assembly.

[0050] A rotating clamping assembly is disposed on the fixed plate 6. An upper pressure plate 23 is connected to the rotating clamping assembly. The rotating clamping assembly can control the upper pressure plate 23 to perform clamping action on the paper box.

[0051] A pressure smoothing component is disposed on the rotary clamping component. A pressure roller 29 is connected to the pressure smoothing component. A guide component is also disposed on the rotary clamping component. The pressure smoothing component can drive the pressure roller 29 to perform a reciprocating swinging motion when the rotary clamping component moves, and the height of the pressure roller 29 can be adjusted by the guide component.

[0052] Specifically, a chain is installed on the support 5, and the height of the support plate 7 can be adjusted via the chain. After the cardboard boxes are processed, they need to be stacked. To do this, the chain controls the support plate 7 to rise to a specified height. At this time, the paper feeding assembly operates, guiding the cardboard boxes onto the support plate 7 via the guide plate 15. Since the cardboard boxes fall onto the support plate 7 by gravity and inertia, unevenness inevitably occurs during the stacking process, resulting in an actual stacking height higher than the theoretical value. Therefore, the cardboard boxes need to be compacted and smoothed. Under the action of the rotating clamping assembly, the paper is controlled... The upper pressure plate 23 clamps the paper box. At the same time, the rotating clamping component also drives the downward pressing and smoothing component to move, causing the pressure roller 29 to perform a reciprocating oscillating action. The downward pressing and smoothing component also controls the pressure roller 29 to always be within a certain height range during the oscillation process through the guide component, so as to ensure that the downward pressure provided to the paper box by the reciprocating oscillation of the pressure roller 29 is always within a certain range. In this way, it can be ensured that the paper box is always in a compacted state when stacked on the support plate 7, avoiding the problem that the stacking height of the paper box exceeds the paper feeding height of the paper feeding component due to uneven stacking, thus causing stacking failure.

[0053] Please see Figures 2-5 , Figure 7 The paper feeding assembly includes a rotating rod 8 rotatably mounted on the fixed plate 6. A first follower rod 9 and a second follower rod 11, which are equidistantly distributed, are fixed on the rotating rod 8. A connecting plate 10 is hinged between the two first follower rods 9. A lower pressure plate 12 is hinged to the second follower rod 11. A tension spring 13, which is hinged to the lower pressure plate 12, is hinged to the fixed plate 6. A deflector rod 14 is rotatably mounted on the fixed plate 6. The deflector rod 14 is fixedly connected to the guide plate 15. A deflector wheel 1401, which abuts against the lower pressure plate 12, is fixed on the deflector rod 14.

[0054] In detail, a gear 16 is rotatably mounted on the fixed plate 6, and a connecting rod 1601 that is hinged to the shaft of the gear 16 is hinged to the yaw wheel 1401. A movable baffle 18 is slidably mounted on the fixed plate 6, and a rack plate 17 that meshes with the gear 16 is fixed on the movable baffle 18. A fixed baffle 36 is also fixed on the fixed plate 6. The movable baffle 18 and the fixed baffle 36 are combined to form an effective bearing range.

[0055] The two equally spaced first follower rods 9 and the connecting plate 10 combine to form a parallelogram structure. The two equally spaced second follower rods 11 and the lower pressure plate 12 also combine to form a parallelogram structure. Therefore, when the rotating rod 8 rotates, the lower pressure plate 12 and the connecting plate 10 themselves will not deflect at an angle. The fixed plate 6 is also provided with a tension spring 13 connected to the deflection wheel 1401. Under the action of the tension spring 13, the deflection wheel 1401 tends to deflect away from the bearing plate 7.

[0056] In the initial state, under the action of the rotating rod 8, the connecting plate 10 and the lower pressure plate 12 are controlled to be at the end of the stroke in the direction away from the bearing plate 7 by the first follower rod 9 and the second follower rod 11. Under the action of the tension spring 13, the eccentric wheel 1401 and the lower pressure plate 12 are always in contact. In this regard, the eccentric wheel 1401 will control the guide plate 15 to be in a horizontal state through the eccentric rod 14.

[0057] When the processed cardboard boxes need to be stacked, the support plate 7 can be raised to a specified height. At the same time, the cardboard boxes will fall on the guide plate 15. Under the action of the guide plate 15, the cardboard boxes are guided to move towards the fixed baffle 36. As the cardboard boxes continue to move, their center will shift relative to the guide plate 15. Under the action of gravity, the cardboard boxes will fall on the support plate 7.

[0058] When the side of the cardboard box away from the fixed baffle 36 is still on the guide plate 15, and its main body is partially suspended and in contact with the bearing plate 7, the cardboard box is in an unstable critical state. The rotating rod 8 rotates, and under the action of the connecting plate 10, the two first follower rods 9 move synchronously, thereby controlling the movement of the lower pressure plate 12 through the two second follower rods 11. When the lower pressure plate 12 moves, its working surface begins to squeeze the eccentric wheel 1401 that is always in contact with it. Since the eccentric wheel 1401 is mounted on the eccentric rod 14 that can rotate around the fixed point, the lateral thrust of the lower pressure plate 12 on the eccentric wheel 1401 forces the eccentric wheel 1401 together with the eccentric rod 14 to rotate around its hinge axis. The rotation of the eccentric rod 14 directly drives the guide plate 15 fixed on it, so that it starts to eccentricate downward from the initial horizontal support state.

[0059] The downward tilt of the guide plate 15 gradually weakens and eventually eliminates its supporting effect on the tail of the cardboard box, allowing the cardboard box to fall onto the support plate 7. At the same time, as the tilt wheel 1401 rotates with the tilt rod 14, it also drives the gear 16 to rotate via the connecting rod 1601. The rotation of the gear 16 drives the rack plate 17, which meshes with it, to move in a straight line, thereby causing the movable baffle 18 to move synchronously and advance towards the fixed baffle 36. After the cardboard box separates from the guide plate 15, the movable baffle 18 moves to the position where it abuts against the cardboard box and pushes the cardboard box towards the fixed baffle 36 until the cardboard box abuts against the fixed baffle 36, thus ensuring that the sides of the cardboard box are neat and uniform.

[0060] At this time, the rotating rod 8 reverses, driving the first follower rod 9 and the second follower rod 11 to reset, which in turn drives the lower pressure plate 12, the deflector wheel 1401, and the guide plate 15 to reset. Under the action of the connecting rod 1601, the gear 16, and the rack plate 17, the movable baffle 18 is reset, preparing for the next paper box to be conveyed and stacked.

[0061] Please see Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 8 , Figure 9 The rotary clamping assembly includes a rotating sleeve 20 and a transmission rod 24 rotatably mounted on the fixed plate 6. A guide post 19 is fixed on the fixed plate 6. A first movable plate 21 is fixed on the rotating sleeve 20. A second movable plate 22 is rotatably mounted on the guide post 19. The first movable plate 21 and the second movable plate 22 are hinged to the upper pressure plate 23. The rotary clamping assembly also includes a follower tooth 2101 fixed on the first movable plate 21. The transmission rod 24 has a transmission tooth 2401 that meshes with the follower tooth 2101 and slides axially. A fixing ring 2402 is fixed on the transmission rod 24. A first spring 25 is sleeved on the transmission rod 24. The two ends of the first spring 25 abut against the fixing ring 2402 and the transmission tooth 2401, respectively.

[0062] Furthermore, a limiting block is fixed on the fixed plate 6, and the limiting block abuts against the upper pressure plate 23 to limit the maximum lifting height of the upper pressure plate 23. A keyway is formed on the inner wall of the transmission gear 2401, and a key that fits into the keyway is fixed on the transmission rod 24. With the cooperation of the keyway and the key, the transmission gear 2401 can rotate with the transmission rod 24 and slide along the axial direction of the transmission rod 24. The first movable plate 21 and the second movable plate 22 are in a parallel and equal state, that is, the first movable plate 21 and the second movable plate 22 combine to form a parallelogram structure. Therefore, when the first movable plate 21 and the second movable plate 22 move, the upper pressure plate 23 itself will not wobble.

[0063] In the initial state, the follower tooth 2101 and the transmission tooth 2401 are in a meshing state, that is, the distance between the transmission tooth 2401 and the fixed ring 2402 is the largest. The elongation of the first spring 25 in its natural state is greater than the maximum distance between the transmission tooth 2401 and the fixed ring 2402. Therefore, the first spring 25 is in a pre-compressed state and always provides the transmission tooth 2401 with a thrust toward the follower tooth 2101. In this state, the upper pressure plate 23 and the limiting block are in abutting state, and the distance between them and the bearing plate 7 is the largest.

[0064] When the cardboard box needs to be compacted and smoothed, the transmission rod 24 rotates, driving the transmission gear 2401 to rotate synchronously. Since the transmission gear 2401 and the follower gear 2101 mesh, the transmission gear 2401 will control the rotating sleeve 20 to rotate synchronously through the follower gear 2101. When the rotating sleeve 20 rotates, it drives the first movable plate 21 to move, thereby driving the second movable plate 22 to move synchronously, so that the upper pressure plate 23 moves toward the bearing plate 7.

[0065] When the upper pressure plate 23 comes into contact with the paper box on the support plate 7, the position of the upper pressure plate 23 no longer changes. At this time, the transmission rod 24 continues to rotate and drives the pressure roller 29 to move through the pressing and smoothing component. When the pressure roller 29 presses and smooths the paper box, since one side of the paper box is clamped, the pressure roller 29 will not cause the paper box to move horizontally when it swings, thus avoiding the problem of the paper box detaching from the support plate 7 due to the lateral force provided by the pressing.

[0066] Please see Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figures 8-10 , Figure 12 The pressing and smoothing assembly includes a follower plate 26 fixed on the transmission rod 24, a support sleeve 27 fixed on the follower plate 26, a support rod 28 axially sliding inside the support sleeve 27, a pressure roller 29 rotatably mounted at the end of the support rod 28, a groove 2701 formed on the outer circumference of the support sleeve 27, a limiting post 2801 and a limiting ring 2802 fixed on the support rod 28 and slidably connected to the groove 2701, and a third spring 35 sleeved on the support sleeve 27, with both ends of the third spring 35 abutting against the follower plate 26 and the limiting ring 2802 respectively.

[0067] Please see Figure 6 , Figures 8-11The guiding assembly includes a support plate 30 fixed to the guide post 19 and rotatably connected to the transmission rod 24. A guide groove is formed on the support plate 30, and the guide groove is slidably engaged with the limiting post 2801. A baffle 31 is fixed on the support plate 30, and a receiving rod 32 is slidably connected to the baffle 31. A support ring 3201 and a limiting plate 33 are fixed on the receiving rod 32. The support ring 3201 abuts against the baffle 31, and the limiting plate 33 abuts against the limiting post 2801. A second spring 34 is sleeved on the receiving rod 32, and the two ends of the second spring 34 abut against the baffle 31 and the limiting plate 33, respectively.

[0068] Please see Figure 11 Furthermore, the guide groove can be divided into three sections: the first arc groove 3001, the first inclined groove 3002, the second arc groove 3003, and the second inclined groove 3004. The inclined direction of the second inclined groove 3004 points to the swing center of the support sleeve 27, and the limiting plate 33 is set in a triangular inclined shape.

[0069] Please see Figure 8 In the initial state, the support sleeve 27 is in the maximum swing state and is facing the fixed baffle 36. In this state, the support sleeve 27 and the first inclined groove 3002 are collinear. The support rod 28 is located at the end of its stroke away from the support sleeve 27. That is, the limiting post 2801 is located at the end of its stroke away from the follower plate 26 in the slot 2701. The limiting post 2801 is located at the connection position of the first arc groove 3001 and the second inclined groove 3004. The distance between the limiting ring 2802 and the follower plate 26 is the largest. The extension of the third spring 35 in its natural state is greater than the maximum distance between the limiting ring 2802 and the follower plate 26. Therefore, the third spring 35 is in a pre-compressed state and always provides the limiting ring 2802 with a thrust in the direction away from the follower plate 26. At this time, the distance between the pressure roller 29 and the bearing plate 7 is the largest.

[0070] The limiting plate 33 is located at the end of its stroke away from the baffle 31, that is, the distance between the limiting plate 33 and the baffle 31 is the largest. The extension of the second spring 34 in its natural state is greater than the maximum distance between the limiting plate 33 and the baffle 31. Therefore, the second spring 34 is in a pre-compressed state and always provides the limiting plate 33 with a thrust in the direction away from the baffle 31. In this state, the support ring 3201 and the baffle 31 are in abutting state.

[0071] When the cardboard box needs to be pressed and smoothed, the transmission rod 24 rotates and drives the support sleeve 27 to move through the follower plate 26, thereby driving the pressure roller 29 to move through the support rod 28. The movement of the support rod 28 also drives the limit post 2801 fixed on it to move accordingly.

[0072] In the initial stage, the transmission rod 24 controls the upper pressure plate 23 to clamp the carton through the rotating clamping assembly, preventing the carton stack from slipping or scattering due to the horizontal component force during the compaction process. At the same time, the limiting post 2801 first slides along the trajectory of the first arc groove 3001. Since the first arc groove 3001 is opposite to the arc trajectory of the support sleeve 27, when the support sleeve 27 drives the pressure roller 29 to swing closer to the carton surface, the limiting post 2801 is constrained by the first arc groove 3001, forcing the support rod 28 to produce an axial compensating retraction movement relative to the support sleeve 27. Therefore, the actual combined movement of the pressure roller 29 toward the carton surface is the dual effect of the swing displacement of the support sleeve 27 and the retraction displacement of the support rod 28. Since the directions of these two displacement components partially cancel each other out, the net displacement of the pressure roller 29 in the vertical direction is significantly reduced and buffered.

[0073] When the pressure roller 29 contacts the surface of the paper box in the first arc groove 3001 stage, as the transmission rod 24 continues to rotate, the limiting post 2801 continues to slide along the remaining trajectory of the first arc groove 3001, so that the pressure roller 29 gradually increases the force on the paper box, thereby achieving a smooth and compacted treatment of the paper box.

[0074] When the limiting post 2801 disengages from the first arc-shaped groove 3001 and enters the first inclined groove 3002, it indicates that the compaction is complete. The pressure roller 29 separates from the cardboard box. When the limiting post 2801 slides along the first inclined groove 3002 and abuts against the inclined surface of the limiting plate 33, the limiting post 2801 generates a lateral thrust on the limiting plate 33. This thrust pushes the limiting plate 33 to overcome the preload of the second spring 34, causing the limiting plate 33 to give way and ensuring that the limiting post 2801 can pass smoothly through the first inclined groove 3002. When the limiting post 2801 crosses the limiting plate 33, it just enters the second arc-shaped groove 3003. At this time, the second spring 34 is released elastically, controlling the limiting plate 33 to reset. Under the action of the upper plane of the limiting plate 33, the limiting post 2801 will not return to the first inclined groove 3002.

[0075] At this time, the transmission rod 24 reverses, and when the limiting post 2801 slides along the second arc groove 3003 to its end and enters the second inclined groove 3004, the elastic potential energy previously stored in the third spring 35 is released. Its restoring force pushes the limiting ring 2802, and through the support rod 28, forces the limiting post 2801 to slide quickly down along the inclined trajectory of the second inclined groove 3004 until it accurately falls back to the initial position. Since the second arc groove 3003 is located above the first arc groove 3001, the pressure roller 29 is separated from the paper box during the entire reset process, thereby avoiding the problem of the paper box bending due to the reaction force of the pressure roller 29 during reset.

[0076] A waste-cleaning flatbed die-cutting machine includes:

[0077] The paper feeding mechanism is used to feed paper boxes.

[0078] The bridge mechanism is used to transport the loaded cardboard boxes to the processing position.

[0079] The creasing and die-cutting mechanism is used for die-cutting paper boxes;

[0080] The waste removal mechanism is used to separate the molded and cut cardboard boxes from the waste materials.

[0081] It also includes the aforementioned automatic paper stacking and receiving mechanism.

[0082] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0083] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatic paper alignment and collecting mechanism, comprising: a support and a fixing plate fixed on the support, and a bearing plate slidingly installed on the support; characterized in that it further comprises: a paper feeding assembly arranged on the fixing plate, and a guide plate connected to the paper feeding assembly; a rotary clamping assembly arranged on the fixing plate, and an upper pressing plate connected to the rotary clamping assembly, the rotary clamping assembly being capable of controlling the upper pressing plate to perform a clamping action on a paper box; a lower pressing and smoothing assembly arranged on the rotary clamping assembly, and a pressing wheel connected to the lower pressing and smoothing assembly, the rotary clamping assembly further being provided with a guide assembly, the lower pressing and smoothing assembly being capable of driving the pressing wheel to perform a reciprocating swing action when the rotary clamping assembly moves, and adjusting the height of the pressing wheel through the guide assembly.

2. A register-controlled automatic delivery mechanism according to claim 1, characterized in that The paper feeding assembly comprises a rotating rod rotatably installed on the fixing plate, the rotating rod being fixed with first and second follower rods distributed at equal intervals, and a connecting plate being hingedly connected between the two first follower rods.

3. A register-controlled automatic delivery mechanism according to claim 2, characterized in that The second follower rod is hingedly connected with a lower pressing plate, the fixing plate is hingedly connected with a tension spring hingedly connected with the lower pressing plate, the fixing plate is rotatably installed with a swing rod, the swing rod is fixedly connected with the guide plate, and the swing rod is fixed with a swing wheel in abutting engagement with the lower pressing plate.

4. A register control paper delivery mechanism according to claim 1, wherein The rotary clamping assembly comprises a rotating sleeve and a transmission rod rotatably installed on the fixing plate, the fixing plate is fixed with a guide column, the rotating sleeve is fixed with a first movable plate, the guide column is rotatably installed with a second movable plate, and the first and second movable plates are hingedly connected with the upper pressing plate.

5. A register-controlled automatic delivery mechanism according to claim 4, characterized in that The rotary clamping assembly further comprises a follower gear fixed on the first movable plate, the transmission rod is axially slidably provided with a transmission gear in engagement with the follower gear, the transmission rod is fixed with a fixing ring, the transmission rod is sleeved with a first spring, and the two ends of the first spring are in abutting engagement with the fixing ring and the transmission gear, respectively.

6. A register-controlled automatic delivery mechanism according to claim 4, characterized in that The lower pressing and smoothing assembly comprises a follower plate fixed on the transmission rod, the follower plate is fixed with a support sleeve, the support sleeve is axially slidably provided with a support rod, and the end of the support rod is rotatably installed with the pressing wheel.

7. A register-controlled automatic delivery mechanism according to claim 6, characterized in that The circumferential outer wall of the support sleeve is formed with a clamping groove, the support rod is fixed with a limiting column and a limiting ring in sliding connection with the clamping groove, the support sleeve is sleeved with a third spring, and the two ends of the third spring are in abutting engagement with the follower plate and the limiting ring, respectively.

8. A register-controlled automatic delivery mechanism according to claim 7, characterized in that The guide assembly comprises a support plate fixed on the guide column and rotatably connected with the transmission rod, the support plate is formed with a guide groove in sliding engagement with the limiting column.

9. A register-controlled automatic delivery mechanism according to claim 8, characterized in that The support plate is fixed with a baffle, the baffle is slidably connected with a receiving rod, the receiving rod is fixed with a support ring and a limiting plate, the support ring is in abutting engagement with the baffle, the limiting plate is in abutting engagement with the limiting column, the receiving rod is sleeved with a second spring, and the two ends of the second spring are in abutting engagement with the baffle and the limiting plate, respectively.

10. A waste removal flat press die cutting machine characterized by, comprising: a paper feeding mechanism for feeding a paper box; a bridge mechanism for conveying the fed paper box to a processing position; The invention discloses a creasing and die-cutting mechanism for creasing and die-cutting a carton; The invention discloses a waste material separating mechanism for separating the carton after creasing and die-cutting from waste material; The invention also discloses a paper collecting mechanism for automatically aligning and collecting the carton.

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