CN219882599U - Cutting device for paper edge waste - Google Patents

Abstract

The utility model discloses a cutting device for scrap paper, which is applied to a scrap-clearing discharge port of a die-cutting machine and comprises a pressing device and a cutting device, wherein the pressing device is in butt joint with the scrap-clearing discharge port; the paper edge waste penetrates out of the cutting gap of the cutting device, so that the cutting device can cut the paper edge waste passing through the cutting gap, and the length of the paper edge waste is reduced. According to the utility model, the waste cleaning discharge port is provided with the sectioning device, the long paper edge waste is subjected to pre-sectioning treatment, the continuous accumulation degree of knotting and stacking is effectively reduced, and the constraint on manpower is released.

Description

Cutting device for paper edge waste

Technical Field

The utility model belongs to the technical field of waste treatment, and particularly relates to a paper edge waste cutting device.

Background

The existing flat-pressing flat die-cutting machine directly discharges paper edge waste at a waste clearing discharge port, falls on a guide plate arranged in an inclined mode, and slides down to a conveying belt of crushing equipment to enter the crushing equipment through the conveying belt for crushing and packaging.

But the length of paper limit waste material is generally longer, and has crease line ball, after discharging from clear useless discharge gate, is not in order between the paper limit waste material, falls, easily produces knot, piles up etc. at the in-process of gliding, and easy card is difficult to get into at the entrance when getting into crushing apparatus, causes intermittent type high load operating pressure to crushing apparatus simultaneously, often needs the manual work to manage the jam condition.

Disclosure of Invention

The utility model aims to provide a cutting device for paper edge waste, which is arranged at a waste clearing discharge port to pre-cut long paper edge waste, so that the continuous accumulation degree of knotting and stacking is effectively reduced, and the constraint on manpower is released.

The utility model solves the technical problems by adopting the technical scheme that the utility model provides a cutting device for paper scrap, which is applied to a waste clearing discharge port of a die-cutting machine and comprises a pressing device and a cutting device, wherein the pressing device and the cutting device are in butt joint with the waste clearing discharge port; the paper edge waste penetrates out of the cutting gap of the cutting device, so that the cutting device can cut the paper edge waste passing through the cutting gap, and the length of the paper edge waste is reduced.

Further, the waste removing device also comprises a guide plate, wherein the guide plate is obliquely arranged at the outer side of the waste removing discharge port, a support frame is arranged at the back side of the guide plate, and the low-position end of the guide plate is in butt joint with a conveying belt of crushing equipment; the exit in cutting gap is provided with downward sloping flitch, the flitch hang in guide plate's high-order end makes by behind the section the paper limit waste material can drop to guide plate is last, and the gliding extremely the conveyer belt gets into crushing apparatus smashes.

Further, a conveying device used for conveying the paper edge waste is arranged in the waste clearing discharge port, the discharging height of the conveying device is higher than the front end height of the pressing and guiding device, and the distance between the front end of the pressing and guiding device and the conveying device is far smaller than the length of the paper edge waste.

Further, the front surface of the guide plate is smooth, and the back surface of the guide plate is provided with a supporting frame.

Further, when the cutting device does not perform the dicing process in the cutting slit, the paper scrap can freely pass through the cutting slit and fall onto the guide plate.

Further, the cutting device is fixedly arranged on the base plate, and the pressure guiding device is butt-mounted at the inlet of a cutting gap of the cutting device; the base plate is fixedly connected to the outer side wall of the die cutting machine, which is provided with the waste cleaning discharge port, or the support frame of the guide plate.

Further, the pressure guiding device comprises a pressing plate, a receiving groove, a base plate transversely arranged on groove plates on two sides of the receiving groove and fixedly connected to the middle of the base plate, the pressing plate is suspended in the receiving groove, the middle of the pressing plate is attached to the front end of the base and is rotatably connected with the lower portion of the front end of the base, the lower end of the pressing plate is bent along the running direction of the paper edge waste, and a tension spring is arranged between the upper end of the pressing plate and the base, so that when the pressing plate is pushed by the accumulated paper edge waste, the tension spring can reset the pressing plate.

Further, when the middle part of the pressing plate is attached to the front end of the base, the distance between the lower end of the pressing plate and the bottom plate of the receiving groove is larger than the thickness of the paper edge waste; the base plate is fixedly connected with the receiving groove, supporting rods are respectively arranged at two ends of the base plate, corresponding to the base plate, and the two supporting rods are fixedly connected to two ends of the base plate respectively, so that the receiving groove can be horizontally abutted to the waste-removing discharge port.

Further, a detector is arranged on the base, and a probe of the detector faces to the bottom plate of the receiving groove and is used for detecting the running speed of the paper scrap passing through the receiving groove.

Further, the cutting device comprises a press roller and a bottom roller, wherein the press roller is positioned right above the bottom roller and is arranged on the substrate through a fixing rod, and the press roller, the bottom roller and the fixing rod are all rotationally connected; the press roller is directly driven by a driving motor, and meshed transmission is carried out between the press roller and the bottom roller through a meshed gear, so that the press roller and the bottom roller can synchronously rotate, and the rotation direction of the bottom roller and the press roller is opposite; the cutting gap is arranged between the pressing roller and the bottom roller, and the distance between the cutting gaps is larger than the thickness of the paper edge waste.

Further, the press roller is provided with a cutter and a backing roller is provided with a backing cutter seat, the cutter and the backing cutter seat are correspondingly arranged, and the backing cutter seat synchronously reaches the cutting gap when the cutter rotates to the cutting gap, so that the cutter can be matched with the backing cutter seat to finish the cutting operation of the paper edge waste.

Preferably, the driving motor is operated intermittently; the driving motor intermittently drives the press roller and the bottom roller to rotate according to the speed information detected by the detector, and cuts the paper edge waste.

Preferably, the driving mode of the driving motor can be reciprocating, for example, the driving motor only rotates 90 degrees each time, so that the cutter and the cushion blade holder can complete one-time cutting operation in the cutting gap, and the cutter and the cushion blade holder do not block the cutting gap.

Preferably, the driving mode of the driving motor is unidirectional rotation, and the rotation speed of the two rollers is adjusted based on the running speed of the paper edge waste, so that cutting is completed once every time of rotation, and the cutting length is within a required range.

It will be appreciated that the running speed of the scrap is not affected by the rotation of the roller, and that the length of scrap transported is not directly related to the arc length of the roller as it rotates.

The beneficial effects of the utility model are as follows:

according to the paper edge waste cutting device, the cutting device is added at the waste port, and the paper edge length is cut off and controlled before the waste paper edge enters the crushing equipment, so that the paper edge waste cutting device can accurately output and smoothly crush the paper edge, effectively improves the blocking condition, lightens the motor load of a crushing system, and gets rid of the constraint of manual supervision.

The method has the advantages that the material cost, the labor cost and the manufacturing cost are reduced, meanwhile, important support is provided for the stable operation of equipment, and the chain property and the integrity of the whole paperboard manufacturing process are ensured.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model. In the drawings, like reference numerals are used to identify like elements. The drawings, which are included in the description, illustrate some, but not all embodiments of the utility model. Other figures can be derived from these figures by one of ordinary skill in the art without undue effort.

FIG. 1 is a schematic side view of a scrap paper cutting device according to an embodiment of the present utility model;

FIG. 2 is a schematic front view of a scrap paper cutting device according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram showing the butt joint of a pressing device and a cutting device of a cutting device for scrap paper according to an embodiment of the present utility model;

FIG. 4 is a block diagram of a press-guiding device of a scrap paper cutting device according to an embodiment of the present utility model;

fig. 5 is a schematic diagram illustrating the cooperation between a cutter and a pad holder according to an embodiment of the present utility model.

In the figure: 1. a pressure guiding device; 2. a cutting device; 3. a guide plate; 4. a pressing plate; 5. a receiving groove; 6. a substrate; 7. a die cutting machine; 8. a conveyor belt; 9. a crushing device; 11. a base; 12. a tension spring; 13. a detector; 14. a backing plate; 15. a support rod; 21. a press roller; 22. a bottom roller; 23. a discharge plate; 24. a meshing gear; 25. a driving motor; 26. a protective shell; 31. a support frame; 51. a side plate; 211. a cutter; 221. and a knife rest.

Detailed Description

In order to more clearly illustrate the embodiments of the present utility model and the technical solutions in the prior art, the following description will explain the specific embodiments of the present utility model with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the utility model, from which other drawings and other embodiments can be obtained by a person skilled in the art without undue effort. The term "design azimuth" merely means a relative positional relationship between the respective members, not an absolute positional relationship.

In the embodiment of the present utility model, the die-cutting machine 7 is an existing flat-pressing flat-die-cutting machine, and the waste-cleaning discharge port is used for discharging cutting waste materials of the carton boards, wherein the cutting waste materials comprise short-side and long-side cardboard waste materials, and the cardboard waste materials are collectively called as paper side waste materials. The paper edge waste has longer paper edges and crease lines, the paper edges are easy to bend in the falling and sliding processes, and the paper edges and other paper edges are knotted and stacked, so that the operation of the pulverizer is not facilitated, and the inlet of the pulverizer is blocked sometimes.

The embodiment of the utility model provides a cutting device for paper scrap, which is applied to a waste clearing discharge port of a die-cutting machine 7, referring to fig. 1-5, and mainly comprises a pressing device 1 and a cutting device 2 which are butted with the waste clearing discharge port, wherein the front end of the pressing device 1 receives the paper scrap discharged from the waste clearing discharge port, a cutting gap of the cutting device 2 is horizontally butted with the rear end of the pressing device 1, and the pressing device 1 guides the paper scrap to an inlet of the cutting gap; the paper scrap passes through the cutting gap of the cutting device 2, so that the cutting device 2 can cut the paper scrap passing through the cutting gap, and the length of the paper scrap is reduced.

In the present utility model, the scrap paper is discharged, guided by the pressing device 1, enters the cutting slit of the cutting device 2, passes through the cutting slit, and falls on the guide plate 3, and slides down the guide plate 3 onto the conveyor belt 8 of the pulverizing device 9.

When the paper edge waste is received by the pressing and guiding device 1, as the paper edge waste is provided with a certain length, the conveying device which is positioned in the waste clearing discharge hole and used for conveying the paper edge waste can provide driving force to push the paper edge waste into the pressing and guiding device 1 and guide the paper edge waste into the cutting gap.

When the paper edge waste is needed to be cut, the cutting device 2 performs one-time cutting operation in the cutting gap to realize the cutting of the paper edge waste; when the cutting is not needed, the cutting gap is kept in an unblocked state, and paper scrap can freely pass through.

In a specific embodiment, the guide plate 3 may be arranged obliquely outside the waste removal outlet, without interfering with the conveying device in the waste removal outlet. The back side of the guide plate 3 is provided with a support frame for supporting the inclined posture of the guide plate 3, the support frame can be provided with a locking roller for pushing the guide plate 3 to be applicable to a plurality of waste cleaning discharge ports; the front side of the guide plate 3 may be smoothed to facilitate the downward sliding of the paper scrap.

Illustratively, the lower end of the guide plate 3 is docked to the conveyor belt 8 of the comminution apparatus 9; the exit in cutting gap is provided with downward sloping flitch 23, and flitch 23 suspension is in the high-order end of guide board 3 for the paper limit waste material after being cut off can drop to guide board 3, and the gliding conveyer belt 8 gets into crushing apparatus 9 and smashes.

It will be appreciated that inclined baffles may be provided on both sides of the guide plate 3 and horizontal baffles may be provided on both sides of the conveyor belt 8 to avoid paper edge waste falling out. The butt joint of the guide plate 3 and the conveying belt 8 can be provided with no horizontal baffle.

In the utility model, the front end of the pressure guiding device 1 is butted to the waste clearing treatment port for receiving the discharged paper scrap. Therefore, the discharging height of the conveying device is slightly higher than the front end height of the pressing and guiding device 1, and the distance between the front end of the pressing and guiding device 1 and the conveying device is far smaller than the length of the paper scrap, so that the paper scrap is stably conveyed to the pressing and guiding device 1 by means of the driving force of the conveying device.

It will be appreciated that the press guiding device 1 is used to guide the scrap, without directly obstructing the operation of the scrap; when the cutting device 2 does not perform cutting operation, the paper scrap can smoothly pass through the cutting slit and fall onto the guide plate 3.

The installation and fixation of the pressure guiding device 1 and the cutting device 2 can be performed based on the outer side wall of the die cutting machine 7 provided with the waste cleaning discharge port or the supporting frame 31 of the guide plate 3. The cutting device 2 and the pressing device 1 are both mounted on the substrate 6, and in the present utility model, the substrate 6 is supported by a support frame 31, as shown in fig. 2. The pressing device 1 is in butt joint with the inlet of the cutting gap of the cutting device 2.

In a specific embodiment, the pressure guiding device 1 comprises a pressing plate 4, a receiving groove 5, a base plate 14 transversely arranged on groove plates on two sides of the receiving groove 5, and a base 11 fixedly connected to the middle of the base plate 14, wherein the pressing plate 4 is suspended in the receiving groove 5, the middle of the pressing plate 4 is attached to the front end of the base 11 and is rotationally connected with the lower portion of the front end of the base 11, a tension spring 12 is arranged between the upper end of the pressing plate 4 and the base 11, and when the pressing plate 4 is pushed by accumulated paper edge scraps, the tension spring 12 can reset the pressing plate 4.

Specifically, the two sides of the receiving groove 5 are bent upwards to form side plates 51, namely two side groove plates; the backing plate 14 is horizontally arranged on the two side plates 51 and fixedly connected. The base 11 is in an L-shaped structure, as shown in fig. 3 and 4, and is inversely fastened to the pad 14, the long-side horizontal plate is fixedly connected with the pad 14, the short-side vertical plate is attached to the pressing plate 4, and the vertical plate is located in front of the pad 14, that is, the front end of the base 11.

Specifically, the upper end of the pressing plate 4 is a horizontal plate, and the height of the pressing plate is the same as that of the horizontal plate of the base 11; the middle part is a vertical plate which is attached to the vertical plate of the base 11; the preferable lower end is the inclined plate, is buckled along the direction of travel of paper limit waste material and is the inclination state to the form of individual layer is got into the cutting gap in the guide paper limit waste material.

For example, the tension spring 12 may be disposed above the horizontal plate of the pressing plate 4 and the horizontal plate of the base 11, and one connecting column may be disposed on each of the horizontal plate of the pressing plate 4 and the horizontal plate of the base 11, and two ends of the tension spring 12 are respectively fixed with the two connecting columns.

The lower side of the middle part of the pressing plate 4 is in rotary connection with the lower end of the vertical plate of the base 11, paper scrap can push the lower end of the pressing plate 4 to rotate backwards, the distance between the lower end of the pressing plate 4 and the bottom plate of the receiving groove 5 is enlarged, and the tension spring 12 can reset the rotary tendency.

It will be appreciated that the pressure plate 4, under the influence of the tension spring 12, can block the entry of stacked scrap as it is generated, so that the scrap travels back in a single layer. The lower end of the pressing plate 4 is bent along the running direction of the paper edge scraps, so that the tilted paper edge scraps can be pressed downwards to enter the cutting gap smoothly. The distance between the press plate 4 and the cutting slit may be smaller than the short-side scrap.

It should be clear that when the middle part of the pressing plate 4 is attached to the front end of the base 11, the distance between the lower end of the pressing plate 4 and the bottom plate of the receiving groove 5 is larger than the thickness of the scrap paper, so that the scrap paper can pass through the distance between the pressing plate 4 and the bottom plate of the receiving groove; the backing plate 14 is fixedly connected with the receiving groove 5, the two ends of the base plate 6 corresponding to the backing plate 14 are respectively provided with a supporting rod 15, the two supporting rods 15 are fixedly connected to the two ends of the backing plate 14 respectively, and the receiving groove 5 is suspended in a horizontal state through the backing plate 14, so that the receiving groove 5 can be horizontally abutted to a waste disposal discharge port.

In the embodiment of the utility model, the horizontal plate of the base 11 is provided with the detector 13, the probe of the detector 13 faces the groove bottom plate of the receiving groove 5, as shown in fig. 3, the detector 13 can be a photoelectric sensor and can be used for detecting the running speed of the paper edge waste passing through the receiving groove 5, and the length of the paper edge waste passing through in unit time can be calculated based on the detection time, so that the cutting device 2 is controlled to cut the paper edge waste, and the length of the paper edge waste is reduced.

As another possible embodiment, the detector 13 may directly detect the length of the paper scrap passing through per unit time, for example, determine the length of a single paper scrap by using image recognition, and perform precise dicing processing.

It will be appreciated that both the long side scrap and the short side scrap are cut during the sectioning process.

In a specific embodiment, the cutting device 2 comprises a pressing roller 21 and a bottom roller 22, and the pressing roller 21 is located right above the bottom roller 22 and is arranged on the substrate 6 through a fixing rod. The fixed rods can be arranged on two sides of the press roller 21 and the bottom roller 22 respectively, and the press roller 21, the bottom roller 22 and the fixed rods are in rotary connection; a cutting gap is reserved between the pressing roller 21 and the bottom roller 22.

Referring to fig. 2, the pressing roller 21 may be directly driven by a driving motor 25, and the pressing roller 21 and the bottom roller 22 are engaged and driven by an engaging gear 24, so that the pressing roller 21 and the bottom roller 22 can rotate synchronously, and the rotation directions of the bottom roller 22 and the pressing roller 21 are opposite; a cutting gap is arranged between the press roller 21 and the bottom roller 22, and the distance between the cutting gaps is larger than the thickness of the paper edge waste.

Illustratively, the right end of the rotating shaft of the pressing roller 21 is in transmission connection with the driving motor 25, and the left end of the rotating shaft may be provided with a meshing gear 24; the left end of the rotating shaft of the bottom roller 22 is also provided with a meshing gear 24, and the two meshing gears 24 are in a meshing state, so that when the pressing roller 21 rotates as a driving wheel, the bottom roller 22 as a driven wheel also synchronously rotates and has opposite directions; the scrap material on the paper feed side can be swallowed for cutting and discharged to the discharge plate 23.

It will be appreciated that the end of the fixing rod may be provided with a sealing plate to protect the roll surface of the press roll 21; the right end extension of the sealing plate can be used for installing a driving motor 25; the left end of shrouding can be used to install protective housing 26, covers the left end of establishing at two rollers for the meshing state of protection meshing gear 24 is not disturbed, reduces the potential safety hazard.

In the embodiment of the present utility model, the pressing roller 21 is provided with a cutter 211, the bottom roller 22 is provided with a pad cutter holder 221, and the cutter 211 is arranged corresponding to the pad cutter holder 221, as shown in fig. 5; when the cutter 211 rotates to the cutting gap, the cutter holder 221 synchronously reaches the cutting gap, so that the cutter 211 can be matched with the cutter holder 221 to finish the cutting operation of the paper edge waste.

Preferably, the drive motor 25 may be operated intermittently; the driving motor 25 intermittently drives the pressing roller 21 and the bottom roller 22 to rotate according to the speed information detected by the detector 13, and cuts the paper scrap.

The driving mode of the driving motor 25 may be reciprocating, for example, only 90 ° is rotated each time, so that the cutter 211 and the pad holder 221 can complete a cutting operation in the cutting gap, and the cutter 211 and the pad holder 221 do not block the cutting gap.

It can be understood that the driving mode of the driving motor 25 may also be unidirectional rotation, and based on the running speed of the scrap paper, the rotation speed of the two rollers is adjusted, so that the cutting is completed once per rotation, and the cutting length is within the required range.

It will be appreciated that the speed of operation of the scrap can be independent of the rotation of the roller, and that the length of scrap delivered is not directly related to the arc length over which the roller rotates.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.

The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific examples described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the utility model, and these should be considered to be within the scope of the utility model.

Claims (10)

1. The cutting device for the paper edge waste is applied to a waste clearing discharge port of a die-cutting machine (7) and is characterized by comprising a pressing device (1) and a cutting device (2) which are butted with the waste clearing discharge port, wherein the front end of the pressing device (1) receives the paper edge waste discharged from the waste clearing discharge port, a cutting gap of the cutting device (2) is horizontally butted with the rear end of the pressing device (1), and the pressing device (1) guides the paper edge waste to an inlet of the cutting gap; the paper edge waste penetrates out of the cutting gap of the cutting device (2), so that the cutting device (2) can cut the paper edge waste passing through the cutting gap, and the length of the paper edge waste is reduced.

2. The paper edge waste cutting device according to claim 1, further comprising a guide plate (3), wherein the guide plate (3) is obliquely arranged on the outer side of the waste cleaning discharge port, the front surface of the guide plate (3) is smooth, a supporting frame (31) is arranged on the back side of the guide plate (3), and the low-position end of the guide plate (3) is butted onto a conveying belt (8) of the crushing equipment (9); the exit in cutting gap is provided with discharging plate (23) of downward sloping, discharging plate (23) hang in guide board (3) high-order end makes by behind the section the paper limit waste material can drop guide board (3) on, and the gliding extremely conveyer belt (8) get into crushing equipment (9) smashes.

3. The cutting device of the paper edge waste according to claim 1, wherein a conveying device for conveying the paper edge waste is arranged in the waste clearing discharge hole, the discharging height of the conveying device is higher than the front end height of the pressure guiding device (1), and the distance between the front end of the pressure guiding device (1) and the conveying device is far smaller than the length of the paper edge waste.

4. A device for cutting off waste paper according to claim 2, characterized in that the cutting device (2) is free to pass through the cutting slit and drop onto the guide plate (3) when no cutting process is performed in the cutting slit.

5. The paper scrap cutting device according to claim 2, further comprising a base plate (6), wherein the cutting device (2) is fixedly arranged on the base plate (6), and the pressure guiding device (1) is butt-jointed and arranged at the inlet of a cutting gap of the cutting device (2); the base plate (6) is fixedly connected to the outer side wall of the die-cutting machine (7) provided with the waste cleaning discharge port or the supporting frame (31) of the guide plate (3).

6. The paper edge waste cutting device according to claim 5, wherein the pressing guiding device (1) comprises a pressing plate (4), a receiving groove (5), a base plate (14) transversely arranged on groove plates on two sides of the receiving groove (5), and a base (11) fixedly connected to the middle of the base plate (14), the pressing plate (4) is suspended in the receiving groove (5), the middle of the pressing plate (4) is attached to the front end of the base (11) and is in rotary connection with the lower part of the front end of the base (11), the lower end of the pressing plate (4) is bent along the running direction of the paper edge waste, and a tension spring (12) is arranged between the upper end of the pressing plate (4) and the base (11), so that when the pressing plate (4) is pushed by the piled paper edge waste, the tension spring (12) can reset the pressing plate (4).

7. The cutting device of the scrap paper according to claim 6, wherein when the middle part of the pressing plate (4) is attached to the front end of the base (11), the distance between the lower end of the pressing plate (4) and the bottom plate of the receiving groove (5) is larger than the thickness of the scrap paper; the base plate (14) is fixedly connected with the receiving groove (5), supporting rods (15) are respectively arranged at two ends of the base plate (6) corresponding to the base plate (14), and the two supporting rods (15) are fixedly connected to two ends of the base plate (14) respectively, so that the receiving groove (5) can be horizontally abutted to the waste cleaning discharge port.

8. A scrap paper cutting device according to claim 7, characterized in that the base (11) is provided with a detector (13), the probe of the detector (13) being directed towards the bottom of the receiving slot (5) for detecting the running speed of the scrap paper passing over the receiving slot (5).

9. The cutting device of scrap paper according to claim 5, characterized in that the cutting device (2) comprises a pressing roller (21) and a bottom roller (22), wherein the pressing roller (21) is positioned right above the bottom roller (22) and is arranged on the base plate (6) through a fixing rod, and the pressing roller (21), the bottom roller (22) and the fixing rod are all connected in a rotating way; the press roller (21) is directly driven by a driving motor (25), and the press roller (21) and the bottom roller (22) are in meshed transmission through a meshed gear, so that the press roller (21) and the bottom roller (22) can synchronously rotate, and the rotation direction of the bottom roller (22) and the rotation direction of the press roller (21) are opposite; the cutting gap is arranged between the pressing roller (21) and the bottom roller (22), and the distance between the cutting gaps is larger than the thickness of the paper edge waste.

10. The paper edge waste cutting device according to claim 9, wherein a cutter (211) is arranged on the press roller (21), a cutter holder (221) is arranged on the bottom roller (22), the cutter (211) is arranged corresponding to the cutter holder (221), and the cutter (211) rotates to the cutting gap, when the cutter holder (221) synchronously reaches the cutting gap, so that the cutter (211) can be matched with the cutter holder (221) to finish the paper edge waste cutting operation.