Paper cutting device

Abstract

The utility model discloses a paper cutting device. The paper cutting device comprises a seat body, a partition plate, a supporting part and a cutter, wherein the partition plate is arranged on the seat body and used for isolating a book page from a cover to be cut; the supporting part is located on one side, corresponding to the book page, of the partition plate and used for supporting the book page; and the cutter can reciprocate in the length direction of the partition plate so as to cut the cover. The paper cutting device is convenient to operate and low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of cover cutting, in particular to a paper cutting device. Background Art

[0002] At present, all mechanical paper cutting equipment uses the spine of the book as the reference point, and then cuts according to the width of the book. However, mechanical paper cutting is usually used by some commercial graphic companies. For ordinary clerical departments, the cost of use is high, and manual paper cutting is usually used. Manual paper cutting is to align the paper to be cut with the scale line on the operating table, and then cut about one sheet along the scale line. Although the cost of manual paper cutting is low, the scale line is usually covered, making alignment inconvenient. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a paper cutting device which is easy to operate.

[0004] In order to solve the above problems, the utility model provides a paper cutting device, which includes a base, a partition plate arranged on the base for isolating book pages and covers to be cut, a supporting portion for supporting the book pages located on the partition plate corresponding to one side of the book pages, and a cutter that can reciprocate along the length direction of the partition plate to cut the cover.

[0005] Furthermore, it also includes a clamping plate located on the partition plate corresponding to one side of the cover, and the clamping plate and the partition plate can be closed and opened in opposite directions to clamp and release the cover;

[0006] The side edges of the partition plate and the clamp plate facing the book spine are both defined as first edges, and the side edges of the partition plate and the clamp plate away from the book spine are both defined as second edges, and the second edge of the partition plate has an exposed portion exposed outside the clamp plate;

[0007] The cutter has a cutting blade, which faces the portion of the partition plate exposed outside the clamping plate, and the parallel distance between the cutting blade and the second edge of the partition plate is less than or equal to the parallel distance from the supporting surface of the support part to the second edge of the partition plate.

[0008] Further, the second edge of the partition plate exceeds the second edge of the clamping plate in a direction away from the first edge, so that a portion of the partition plate close to the second edge is exposed outside the second edge of the clamping plate to form the exposed portion; or

[0009] The clamping plate is provided with a slit distributed along its length direction at a position close to its second edge, and the exposed portion exposed outside the clamping plate is formed at a position of the partition plate opposite to the slit, and the cutting knife is slidably arranged in the slit.

[0010] Furthermore, the partition plate is provided with cutting grooves distributed along its length direction, and the cutting knife moves in the cutting grooves to cut the cover.

[0011] Further, the clamping plate is fixedly arranged on the base, and the partition plate is movably arranged on the clamping plate or the base, and the partition plate can be moved closer to the clamping plate under an external force to be stacked on the clamping plate; or

[0012] The partition plate is fixedly arranged on the base, and the clamping plate is movably arranged on the partition plate or the base, and the clamping plate can be moved toward the partition plate under an external force to be stacked on the partition plate; or

[0013] The partition plate and the clamping plate are both movably arranged on the seat body, and the partition plate and the clamping plate can move toward opposite directions under external force;

[0014] The partition plate and / or the clamping plate can be closed and opened by linear reciprocating movement or pivoting.

[0015] Furthermore, the clamping plate is defined as being fixedly arranged on the seat body;

[0016] The support part is fixedly connected to the partition plate, and the partition plate and the support part are rotatably mounted on the base body via a rotating shaft, and the partition plate and the support part can rotate around the axis of the rotating shaft to be in an open state with the clamping plate; under the action of gravity or a reset mechanism, the partition plate and the support part can maintain contact with the clamping plate; or

[0017] The partition plate is separately arranged with the support part, the support part is fixedly arranged on the base body, the partition plate is rotatably mounted on the base body through a rotating shaft, the partition plate can rotate around the axis of the rotating shaft to be in an open state with the clamping plate, and the partition plate can also abut against the clamping plate under the action of gravity or a reset mechanism

[0018] Further, the reset mechanism is a torsion spring, the torsion spring is mounted on the rotating shaft, one end of the torsion spring abuts against the support plate or the seat body, the seat body is provided with a limit pin, and the limit pin is used to limit the other end of the torsion spring; or

[0019] The reset mechanism is an elastic member, one end of which is fixed on the seat body, and the other end of which is fixed on the supporting part or the partition plate.

[0020] Furthermore, the support portion is provided with a latch, the seat body is provided with a limiting hole for limiting the latch, the latch is inserted into the limiting hole, and the latch can move in the limiting hole.

[0021] Furthermore, the support portion is provided with a slot, the latch is inserted into the slot, and the slot is C-shaped.

[0022] Furthermore, the support portion or the partition plate is provided with an axial hole or an axial groove, the rotating shaft is arranged in the axial hole or the axial groove, and the axial groove is C-shaped.

[0023] Furthermore, the support portion is defined to be fixedly connected to the partition plate, and the positioning plate support portion is integrally formed with the partition plate.

[0024] Furthermore, the cutter includes a cutting blade, a mounting component and a slide rail, wherein the mounting component is slidably mounted on the slide rail, the slide rail is mounted on the seat body, the partition plate or the support portion, the cutting blade is mounted on the mounting component, and the mounting component slides on the slide rail to drive the cutting blade to move to cut the cover.

[0025] Furthermore, it also includes a handle, wherein the handle is mounted on the mounting component;

[0026] The slide rail is defined on the positioning plate support portion, and the slide rail and the positioning plate support portion are integrally formed;

[0027] The slide rail is defined on the support portion of the positioning plate, and has a slide groove, the opening of the slide groove faces a side away from the clamping plate, and the mounting component is U-shaped.

[0028] Furthermore, the installation component is installed with a sliding component, and the installation component slides on the slide rail through the sliding component, and the sliding component is a pulley or a ball.

[0029] Further, the cutter comprises an electrically driven reciprocating mechanism and a cutting knife, and the cutting knife is arranged on the reciprocating mechanism;

[0030] The reciprocating mechanism comprises a motor, a screw and a nut, the cutting knife is fixed on the nut, the nut is screwed on the screw, and the screw is fixed to the output shaft of the motor; or

[0031] The reciprocating mechanism comprises a motor, a synchronous belt and two synchronous wheels, wherein one of the synchronous wheels is mounted on the output shaft of the motor, and the other synchronous wheel is mounted on the seat body, the synchronous belt is wound around the two synchronous wheels, and the cutting knife is mounted on the synchronous belt.

[0032] The paper cutting device of the utility model places uncut book pages on the supporting part so as to position the movable ends of the book pages, separates the cover to be cut from the book pages by a partition plate, and then cuts off the excess cover by a cutter. The cutting is convenient, and no scale is required to position the cutting reference. The utility model has few parts and occupies a small area. Compared with the mechanical paper cutting equipment used by existing graphic companies, the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of a preferred implementation of the paper cutting device of the utility model.

[0034] Figure 2 It is a sectional view of the paper cutting device of the utility model.

[0035] Figure 3 yes Figure 2 A partial enlarged view of middle A.

[0036] Figure 4 It is a structural diagram of the seat body.

[0037] Figure 5 It is a structural schematic diagram of the support part and the slide rail.

[0038] Figure 6 It is a structural schematic diagram of another preferred embodiment of the paper cutting device of the utility model.

[0039] Figure 7 It is a structural schematic diagram of another preferred embodiment of the paper cutting device of the utility model.

[0040] Figure 8 It is a structural schematic diagram of another preferred embodiment of the paper cutting device of the utility model.

[0041] Fig. 9 It is a structural schematic diagram of another preferred embodiment of the paper cutting device of the utility model.

[0042] Fig.10 It is a structural schematic diagram of another preferred embodiment of the paper cutting device of the utility model.

[0043] Fig.11 It is a structural schematic diagram of another preferred embodiment of the paper cutting device of the utility model.

[0044] Fig.12 It is a structural schematic diagram of another preferred embodiment of the paper cutting device of the utility model.

[0045] Fig.13 It is a structural schematic diagram of another preferred embodiment of the paper cutting device of the utility model.

[0046] Fig.14 It is a structural schematic diagram of another preferred embodiment of the paper cutting device of the utility model.

[0047] Fig.15 It is a structural schematic diagram of another preferred embodiment of the paper cutting device of the utility model.

[0048] The meanings of the symbols in the accompanying drawings are:

[0049] Base body 1, splint 11, side plate 12, limiting hole 121, mounting plate 13, anti-skid column 14, partition plate 2, cutting groove 21, first edge 22, second edge 23, supporting part 3, slot 31, shaft slot 32, reset mechanism 4, cutter 5, handle 51, cutting knife 52, mounting component 53, slide rail 54, slide groove 541, anti-slip plate 542, pulley 55, rotating shaft 6, latch 71, limiting pin 72, motor 81, screw 82, nut 83, synchronous belt 85, synchronous wheel 86, elastic member 87, cover 91, book page 92. DETAILED DESCRIPTION

[0050] The utility model will be further described below in conjunction with the accompanying drawings.

[0051] Embodiment 1

[0052] like Figures 1 to 5 As shown, a preferred embodiment of the paper cutting device of the utility model includes a base 1, a clamping plate 11, a partition plate 2, a support portion 3, a reset mechanism 4 and a cutter 5. The clamping plate 11 is arranged on the base 1, and the clamping plate 11 is adapted to the partition plate 2, and the partition plate 2 and the clamping plate 11 cooperate to clamp the cover 91 to be cut. The partition plate 2 is arranged on the support portion 3, and the partition plate 2 is vertically arranged, and the support portion 3 is perpendicular to the partition plate 2. The support portion 3 is used to position the movable end of the book page 92, and the top surface of the support portion 3 is used as a positioning surface for positioning the movable end of the book page 92. The movable end of the book page 92 can be positioned by placing it on the positioning surface, thereby determining the reference for cutting. In other embodiments, such as Figure 6As shown, the partition plate 2 and the clamping plate 11 can also be arranged horizontally, in which case the side surface of the support portion 3 is used as a positioning surface. The partition plate 2 is used to separate the book pages 92 and the cover 91 to be cut. The partition plate 2 and the support portion 3 are integrally formed, which is convenient for processing and manufacturing. The support portion 3 is rotatably arranged on the base body 1 through the rotating shaft 6. The support portion 3 can rotate around the axis of the rotating shaft 6, so that the support portion 3 and the partition plate 2 can rotate synchronously, so that a gap can be formed between the partition plate 2 and the clamping plate 11, so that the cover 91 to be cut can be inserted into the gap between the partition plate 2 and the clamping plate 11. The cutter 5 is installed on the supporting part 3, and is used for cutting the cover 91 clamped by the clamp 11 and the partition plate 2; the side edges of the partition plate 2 and the clamp 11 facing the book spine are both defined as the first edge 21, and the side edges of the partition plate 2 and the clamp 11 away from the book spine are both defined as the second edge 22, and the second edge 22 of the partition plate 2 exceeds the second edge 22 of the clamp 11 in the direction away from the first edge 21, so that the part of the partition plate 2 close to the second edge 22 is exposed outside the second edge 22 of the clamp 11, so that the cover 91 to be cut can be exposed, which is convenient for the cutter 5 to perform cutting. Under the action of the reset mechanism 4, the partition plate 2 can keep in contact with the clamping plate 11, so that in the absence of external force, the partition plate 2 can clamp the cover 91 with the clamping plate 11; of course, in other embodiments, the rotating shaft 6 can be eccentrically arranged on the support part 3, so that the support part 3 can keep in contact with the clamping plate 11 under the action of gravity. It should be known that in other embodiments, the clamping plate 11 may not be required, and the cover 91 can be fixed on the partition plate 2 by hand.

[0053] The seat body 1 includes two side plates 12, and the two ends of the clamping plate 11 are fixed on the two side plates 12. The bottom of the side plate 12 is bent toward the center of the clamping plate 11 to form a mounting plate 13. The mounting plate 13 is provided with an anti-skid column 14, and the anti-skid column 14 can prevent the seat body 1 from sliding. The side plate 12 is provided with a limiting hole 121, and the limiting hole 121 is used to limit the rotation angle of the support part 3.

[0054] The partition plate 2 is provided with a cutting groove 21, and the cutting groove 21 is arranged along the length direction of the partition plate 2. The cutter 5 has a cutting knife 52, and the cutting knife 52 moves in the cutting groove 21. The cutting knife 52 moves to cut the excess cover 91. The partition plate 2 is narrow at the top and wide at the bottom, which is convenient for setting the cutting groove 21 at the bottom. The parallel distance a between the cutting knife 52 and the second edge 22 of the partition plate 2 is less than or equal to the parallel distance b between the support surface of the support part 3 and the second edge 22 of the partition plate 2, ensuring that the cut cover 91 is wider than the book page 92, and the cover 91 can wrap the book page 92.

[0055] The support part 3 is a plate-like structure, and a latch 71 is provided on the support part 3. The latch 71 is inserted into the limiting hole 121. The diameter of the latch 71 is smaller than the diameter of the limiting hole 121, so that the rotation angle of the support part 3 is subject to the limiting hole 121. Usually, the thickness of the cover 91 is relatively thin, so the diameter of the limiting hole 121 does not need to be too large. A slot 31 is provided on the support part 3, and the latch 71 is inserted into the slot 31. The slot 31 is C-shaped, so that the slot 31 can be deformed. When the slot 31 is not deformed, the contour of the inner hole of the slot 31 is arc-shaped. The diameter of the latch 71 is larger than the diameter of the slot 31, so that the latch 71 can be inserted into the slot 31 and fixed, so that the latch 71 can be quickly disassembled. The support portion 3 is provided with an axial groove 32 , which is C-shaped, and is convenient for disassembling and assembling the rotating shaft 6 onto the support portion 3 ; in other embodiments, the support portion 3 may also be provided with an axial hole to replace the axial groove 32 .

[0056] The reset mechanism 4 is a torsion spring, which is mounted on the rotating shaft 6. The torsion spring rotates with the rotating shaft 6. One end of the torsion spring abuts against the latch 71 on the support part 3. The seat body 1 is provided with a limit pin 72, which is used to limit the other end of the torsion spring. When the support part 3 is subjected to an external force and rotates in a direction away from the clamping plate 11, the torsion spring is subjected to a force. When the external force disappears, the torsion spring drives the support part 3 to reset.

[0057] The cutter 5 includes a handle 51, a cutting blade 52, a mounting component 53 and a slide rail 54. The slide rail 54 is arranged on the support part 3, the mounting component 53 is slidably arranged on the slide rail 54, and the cutting blade 52 is mounted on the mounting component 53. Specifically, the slide rail 54 is located below the support part 3, and the slide rail 54 is integrally formed with the support part 3, which is convenient for processing and manufacturing. Figure 7As shown, in other embodiments, the slide rail 54 is also arranged at one end of the support part 3. The slide rail 54 has a slide groove 541, and the opening of the slide groove 541 faces the side away from the clamping plate 11, so that the partition plate 2 is located between the handle 51 and the clamping plate 11, that is, the handle 51 and the support part 3 are on the same side, which is convenient for operation. The mounting component 53 is U-shaped to ensure that the cutting knife 52 can cut the cover 91; a sliding component is installed on the mounting component 53 to facilitate the mounting component 53 to slide more smoothly on the slide rail 54, and the side wall of the slide groove 541 is bent toward the center of the slide groove 541 to form an anti-slip plate 542, and the anti-slip plate 542 is used to prevent the sliding component from falling off and maintain stability during sliding. The sliding component is a pulley 55, which is installed through the rotating shaft 6 and slides in the slide groove 541. In other embodiments, a ball bearing can also be used instead of the pulley 55. The cutting blade 52 is not higher than the positioning surface of the supporting part 3, ensuring that the cover 91 after cutting is wider than the book page 92 and can cover the book page 92; the tip of the cutting blade 52 is triangular, and the edge where the cutting blade 52 contacts the cover 91 is a beveled edge, so that it is more convenient to cut the cover 91. In other embodiments, the handle 51 may not be provided, and the connecting component can be directly pushed on the slide rail 54.

[0058] When in use, the handle 51 is pressed downward to separate the partition plate 2 from the clamp plate 11, and the uncut book cover is inserted between the partition plate 2 and the clamp plate 11. At the same time, the uncut book is placed on the support part 3 to position the movable end of the page 92. After placement, it is appropriately loosened to allow the partition plate 2 to clamp the cover 91 under the action of the reset mechanism 4, and then the handle 51 is slid to drive the cutting knife 52 to cut the cover 91 to be cut. After completion, the book is taken out and turned over to cut the cover 91 on the other side. The cover 91 to be cut is separated from the page 92 by the partition plate 2 to ensure that the page 92 will not be cut during cutting. When cutting, there is no need for a scale to locate the cutting reference. It only needs to be placed on the support part 3, which is convenient for positioning. At the same time, compared with the mechanical paper cutting equipment used by existing graphic companies, it has fewer parts, occupies a small area, and has low cost.

[0059] Embodiment 2

[0060] like Figure 7 As shown, the difference between this embodiment and the first embodiment is that the structure of the cutter 5 is different.

[0061] The cutter 5 includes an electrically driven reciprocating mechanism and a cutting knife 52, and the cutting knife 52 is arranged on the reciprocating mechanism. The reciprocating mechanism includes a motor 81, a screw 82 and a nut 83, and the motor 81 is installed on the support part 3. The cutting knife 52 is fixed on the nut 83, and the nut 83 is screwed on the screw 82. The nut 83 or the cutting knife 52 can change shape according to the installation position of the screw 82, so that the blade of the cutting knife 52 is always located in the cutting groove, and the screw 82 is fixed to the output shaft of the motor 81. The motor 81 drives the screw 82 to rotate, and the rotation of the screw 82 drives the nut 83 to move along the axial direction of the screw 82, and the movement of the nut 83 drives the cutting knife 52 to move, thereby cutting the cover 91.

[0062] like Fig. 9 As shown, in other embodiments, a synchronous belt 85 and two synchronous wheels 86 may be used instead of the screw 82 and the nut 83, wherein one of the synchronous wheels 86 is mounted on the output shaft of the motor 81, and the other synchronous wheel 86 is mounted on the seat body 1, the synchronous belt 85 is wound around the two synchronous wheels 86, and the cutting knife 52 is mounted on the synchronous belt 85. The motor 81 drives the synchronous wheel 86 to rotate and drive the synchronous belt 85, and the synchronous belt 85 drives the cutting knife 52 to cut the cover 91.

[0063] Embodiment 3

[0064] like Fig.10 As shown, the reset mechanism 4 is an elastic member 87, one end of the elastic member 87 is fixed on the seat body 1, and the other end of the elastic member 87 is fixed on the support portion 3. The elastic member 87 is a spring. Of course, other elastic members 87 with elastic functions such as elastic rubber can also be used to replace the intersection. In other embodiments, the other end of the elastic member 87 can be fixed on the partition plate 2.

[0065] Embodiment 4

[0066] like Fig.11 As shown, the difference between this embodiment and the first embodiment is that the cutter 5 is mounted on the base 1, that is, the slide rail 54 is fixed on the base 1. It should be known that the solution of this embodiment is also applicable to the second and third embodiments.

[0067] Embodiment 5

[0068] like Fig.12As shown, the difference between this embodiment and the first embodiment is that the support portion 3 can rotate around the axis of the rotating shaft 6, and the support portion 3 is fixed on the base body 1. The support portion 3 is provided with an axis groove 32, and the rotating shaft 6 is inserted into the axis groove 32. It should be known that the axis groove 32 can also be replaced by an axis hole. It should be known that the range of movement of the cutting knife 52 in the cutting groove 21 is greater than the range of rotation of the partition plate 2, that is, when the cutting groove 21 rotates with the support portion 3, the cutting knife 52 will not touch the upper groove wall and the lower groove wall of the cutting groove 21, so that the partition plate 2 will not interfere with the cutting knife 52 when rotating, thereby protecting the cutting knife 52. In other embodiments, the partition plate 2 and the splint can also be movably arranged on the base body, and the partition plate and the splint can move closer to opposite directions under external force. The scheme of this embodiment is also applicable to embodiments 2 to 4.

[0069] When in use, the partition plate 2 is rotated to separate the partition plate 2 from the clamping plate 11, and the cover 91 is inserted between the partition plate 2 and the clamping plate 11. The subsequent operations are the same as those in the first embodiment.

[0070] Embodiment 6

[0071] like Fig.13 As shown, the difference between this embodiment and the first embodiment is that the partition plate 2 can linearly reciprocate on the base body 1. Specifically, a sliding groove 14 is obliquely arranged on the base body 1, and support members 26 are arranged at both ends of the partition plate 2, and the support members 26 are slidably arranged in the sliding groove 14. When it is necessary to clamp the cover 91, pull the partition plate 2 to make the support member 26 slide to the highest point of the sliding groove 14, and then release the partition plate 2 to reset the cover 91 by gravity. Of course, it is also possible to reset the partition plate 2 by a spring or rubber without obliquely setting the sliding groove. In other embodiments, the partition plate 2 can also be slidably arranged on the base body 1 through the support portion 3. It should be known that the scheme of this embodiment is also applicable to embodiments 2 to 5.

[0072] Embodiment 7

[0073] like Fig.14As shown, the difference between this embodiment and the first embodiment is that the clamping plate 11 can move linearly back and forth on the base body 1, and the partition plate 2 is fixedly mounted on the base body 1. Specifically, a sliding groove 14 is obliquely arranged on the base body 1, and support members 26 are arranged at both ends of the clamping plate 11, and the support members 26 are slidably arranged in the sliding groove 14. When it is necessary to clamp the cover 91, the clamping plate 11 is pulled to make the support member 26 slide to the highest point of the sliding groove 14, and then the partition plate 2 is released to reset the cover 91 by gravity. Of course, it is also possible to reset the clamping plate 11 by using a spring or rubber without obliquely setting the sliding groove. In other embodiments, the clamping plate 11 can also be pivotally connected to the base body 1 through a rotating shaft. It should be known that the scheme of this embodiment is also applicable to embodiments 2 to 4.

[0074] Embodiment 8

[0075] like Fig.15 As shown, the present embodiment is different from the first embodiment in that a moving groove 111 is provided on the clamping plate 11. The cutting knife 52 passes through the moving groove 111 and extends into the cutting groove 21. The cutting knife 52 moves in the moving groove 111 to cut the cover 91.

[0076] The above are only implementation methods of the present utility model, and are not intended to limit the patent scope of the present utility model. Any equivalent structure made using the contents of the specification and drawings of the present utility model, directly or indirectly used in other related technical fields, are also within the patent protection scope of the present utility model.

Claims

1. A paper cutting device, characterized in that: The invention comprises a base, a partition plate arranged on the base for isolating book pages and covers to be cut, a support part for supporting book pages located on the partition plate corresponding to one side of the book pages, and a cutter capable of reciprocating along the length direction of the partition plate to cut the covers.

2. The paper cutting device according to claim 1, characterized in that: It also includes a clamping plate located on the partition plate corresponding to one side of the cover, and the clamping plate and the partition plate can be closed and opened in opposite directions to clamp the cover and release the cover; The side edges of the partition plate and the clamp plate facing the book spine are both defined as first edges, and the side edges of the partition plate and the clamp plate away from the book spine are both defined as second edges, and the second edge of the partition plate has an exposed portion exposed outside the clamp plate; The cutter has a cutting blade, which faces the portion of the partition plate exposed outside the clamping plate, and the parallel distance between the cutting blade and the second edge of the partition plate is less than or equal to the parallel distance from the supporting surface of the support part to the second edge of the partition plate.

3. The paper cutting device according to claim 2, characterized in that: The second edge of the partition plate exceeds the second edge of the clamping plate in a direction away from the first edge, so that a portion of the partition plate close to the second edge is exposed outside the second edge of the clamping plate to form the exposed portion; or The clamping plate is provided with a slit distributed along its length direction at a position close to its second edge, and the exposed portion exposed outside the clamping plate is formed at a position of the partition plate opposite to the slit, and the cutting knife is slidably arranged in the slit.

4. The paper cutting device according to claim 2, characterized in that: The partition plate is provided with cutting grooves distributed along the length direction thereof, and the cutting knife moves in the cutting grooves to cut the cover.

5. The paper cutting device according to claim 2, characterized in that: The clamping plate is fixedly arranged on the base body, and the partition plate is movably arranged on the clamping plate or the base body. Under an external force, the partition plate can be moved closer to the clamping plate to be stacked on the clamping plate; or The partition plate is fixedly arranged on the base body, and the clamping plate is movably arranged on the partition plate or the base body. Under an external force, the clamping plate can be moved closer to the partition plate to be stacked on the partition plate; or The partition plate and the clamping plate are both movably arranged on the seat body, and the partition plate and the clamping plate can move toward opposite directions under external force; The partition plate and / or the clamping plate can be closed and opened by linear reciprocating movement or pivoting.

6. The paper cutting device according to claim 2, characterized in that: The clamping plate is defined as being fixedly disposed on the seat body; The support part is fixedly connected to the partition plate, and the partition plate and the support part are rotatably mounted on the seat body via a rotating shaft, and the partition plate and the support part can rotate around the axis of the rotating shaft to be in an open state with the clamping plate; under the action of gravity or a reset mechanism, the partition plate and the support part can keep in contact with the clamping plate; or The partition plate is separately arranged with the supporting part, the supporting part is fixedly arranged on the base body, the partition plate is rotatably mounted on the base body through a rotating shaft, the partition plate can rotate around the axis of the rotating shaft to be in an open state with the clamping plate, and the partition plate can also abut against the clamping plate under the action of gravity or a reset mechanism.

7. The paper cutting device according to claim 6, characterized in that: The reset mechanism is a torsion spring, which is mounted on the rotating shaft, one end of which abuts against a support plate or a seat, and a limit pin is provided on the seat, and the limit pin is used to limit the other end of the torsion spring; or The reset mechanism is an elastic member, one end of which is fixed on the seat body, and the other end of which is fixed on the supporting part or the partition plate.

8. The paper cutting device according to claim 7, characterized in that: The support portion is provided with a latch pin, the seat body is provided with a limiting hole for limiting the latch pin, the latch pin is inserted into the limiting hole, and the latch pin can move in the limiting hole.

9. The paper cutting device according to claim 8, characterized in that: The supporting part is provided with a slot, the latch is inserted into the slot, and the slot is C-shaped.

10. The paper cutting device according to claim 6, characterized in that: The support portion or the partition plate is provided with an axial hole or an axial groove, the rotating shaft is arranged in the axial hole or the axial groove, and the axial groove is C-shaped.

11. The paper cutting device according to claim 6, characterized in that: The support portion is defined to be fixedly connected to the partition plate, and the support portion and the partition plate are integrally formed.

12. The paper cutting device according to any one of claims 1 to 11, characterized in that: The cutter comprises a cutting blade, a mounting component and a slide rail, wherein the mounting component is slidably mounted on the slide rail, the slide rail is arranged on a seat body, a partition plate or a supporting part, the cutting blade is mounted on the mounting component, and the mounting component slides on the slide rail to drive the cutting blade to move to cut the cover.

13. The paper cutting device according to claim 12, characterized in that: Also comprising a handle, the handle being mounted on the mounting member; The slide rail is defined on the support portion, and the slide rail and the support portion are integrally formed; The slide rail has a slide groove, the opening of the slide groove faces a side away from the clamping plate, and the mounting component is U-shaped.

14. The paper cutting device according to claim 12, characterized in that: The installation component is installed with a sliding component, and the installation component slides on the slide rail through the sliding component, and the sliding component is a pulley or a ball.

15. The paper cutting device according to any one of claims 1 to 11, characterized in that: The cutter comprises an electrically driven reciprocating mechanism and a cutting knife, wherein the cutting knife is arranged on the reciprocating mechanism; The reciprocating mechanism comprises a motor, a screw and a nut, the cutting knife is fixed on the nut, the nut is screwed on the screw, and the screw is fixed to the output shaft of the motor; or The reciprocating mechanism comprises a motor, a synchronous belt and two synchronous wheels, wherein one of the synchronous wheels is mounted on the output shaft of the motor, and the other synchronous wheel is mounted on the seat body, the synchronous belt is wound around the two synchronous wheels, and the cutting knife is mounted on the synchronous belt.

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