A cutting machine for printing

Abstract

The application relates to a paper cutting machine for printing, comprising a conveyor for conveying printing paper, two sets of running tracks are oppositely arranged on the conveyor, a moving base is slidably arranged on the running tracks, and a driving piece is arranged on the moving base; two pressing units are oppositely arranged between the top of the two moving bases, a cutting mechanism is arranged between the two moving bases, and the cutting mechanism cuts the printing paper; the position of the cutting mechanism can be conveniently adjusted through the movable moving base on the running track and the driving piece for driving the moving base to move, so that the paper can be cut into different specifications according to different cutting requirements, the universality and applicability of the paper cutting machine are improved, the paper can be fixed through the cooperation of the lifting piece and the pressing plate, displacement of the paper caused by stress during cutting is effectively avoided, and the cutting accuracy is ensured.

Description

Technical Field

[0001] This application relates to the field of paper cutting technology, and in particular to a paper cutter for printing. Background Technology

[0002] In the printing industry, paper cutters are responsible for cutting printing paper to specific specifications, and their performance and adjustment functions affect the quality of printed products and production efficiency.

[0003] Currently, most paper cutters on the market are relatively fixed, with their cutting size and position mostly preset, making it difficult to adjust flexibly according to actual production needs. When different sizes of paper need to be cut, operators often need to spend time and effort to readjust and set the paper cutter, which not only increases the complexity of operation but also reduces production efficiency.

[0004] Specifically, when cutting printing paper of different sizes, because the position of the cutting mechanism is relatively fixed, it cannot be moved to the designated position quickly and accurately for cutting. Operators may need to use additional measuring tools to manually adjust the position of the paper and the distance between the cutting mechanism. This operation method is not only inefficient, but also prone to errors, resulting in the cut paper not meeting the requirements and wasting raw materials.

[0005] To address the aforementioned problems, a paper cutter for printing is now designed. Utility Model Content

[0006] This application provides a paper cutter for printing to solve the problem that paper cutters in the related art are often relatively fixed, making it inconvenient to make flexible adjustments according to actual production needs, thus affecting production efficiency.

[0007] In a first aspect, a paper cutter for printing is provided, comprising:

[0008] Includes: a conveyor for conveying printing paper, wherein two sets of travel tracks are arranged opposite each other on the conveyor, a movable seat is slidably arranged on the travel tracks, and a driving component is provided on the movable seat, the driving component being used to drive the movable seat to move along the length of the travel tracks;

[0009] Two pressing units are arranged opposite each other between the tops of the two movable seats. The pressing units are used to press the printing paper on the conveyor. A cutting mechanism is arranged between the two movable seats to cut the printing paper.

[0010] The clamping unit includes a lifting component mounted on a movable base and a clamping plate mounted above two opposing lifting components. The lifting component is used to drive the clamping plate to move up and down.

[0011] In some embodiments, the conveyor includes a support frame with two side plates disposed opposite to each other, two drive rollers rotatably disposed between the two side plates, a drive roller rotatably disposed below the drive rollers on the support frame, and a conveyor belt drivingly connecting the two drive rollers and the drive roller to the outside of the drive roller.

[0012] The support frame is equipped with a drive motor and a reducer. The output shaft of the drive motor is connected to the input shaft of the reducer. Both the output shaft of the reducer and one end of the drive roller are equipped with pulleys, and the two pulleys are connected by a belt drive.

[0013] In some embodiments, the lifting component includes an electric push rod mounted on a movable seat and a fixed disc connected to the piston rod of the electric push rod.

[0014] In some embodiments, the clamping plate includes a support rod connected to the bottom of the fixed plate, a pressure plate disposed at the bottom of two adjacent support rods, a clamping sheet disposed at the bottom of the pressure plate, and the pressure plate is convex.

[0015] In some embodiments, the cutting mechanism includes a mounting bracket disposed between two movable seats, the mounting bracket being located between two clamping units;

[0016] A cylinder is provided on the mounting bracket. The piston rod of the cylinder extends downward. A mounting plate is provided at the bottom end of the piston rod. A fixing seat is provided on one side of the mounting plate. A cutting blade is provided at the bottom of the fixing seat.

[0017] In some embodiments, a positioning mechanism is also included, which includes guide rods arranged opposite to each other on both sides of the mounting frame. A positioning disk is provided at the bottom of the guide rods. Two sliding holes are opened opposite to each other on the mounting plate. The mounting plate is slidably mounted on the two guide rods. When the mounting plate moves downward and contacts the positioning disk, the bottom end of the cutting blade contacts the upper surface of the conveyor belt.

[0018] In some embodiments, the travel track includes a fixed plate disposed on a side plate, a slide rail disposed on the fixed plate, a plurality of sliders slidably disposed above the slide rail, and a movable seat disposed above the corresponding plurality of sliders.

[0019] In some embodiments, the driving component includes a rack mounted on a fixed plate, a second reducer and a second drive motor mounted on a movable base, the output shaft of the second drive motor being connected to the input shaft of the second reducer, the output shaft of the second reducer extending below the movable base, and the output shaft of the second reducer being provided with a gear that meshes with the corresponding rack.

[0020] This application provides a paper cutter for printing. A movable seat on a traveling track and a driving component that moves the movable seat allow for convenient adjustment of the cutting mechanism's position. This enables the paper to be cut into different specifications according to varying cutting requirements, improving the versatility and applicability of the paper cutter. The cooperation of the lifting component and the pressing plate ensures the paper is pressed and fixed, effectively preventing displacement due to force during cutting, ensuring cutting accuracy, improving cutting quality, and reducing scrap rate. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A three-dimensional structural illustration provided for an embodiment of this application. Figure 1 ;

[0023] Figure 2 A three-dimensional structural illustration provided for an embodiment of this application. Figure 2 ;

[0024] Figure 3 Rear view provided for embodiments of this application;

[0025] Figure 4 This is a three-dimensional schematic diagram of the connection structure between the movable seat and the clamping unit provided in the embodiments of this application;

[0026] Figure 5 This is a three-dimensional schematic diagram of the connection structure between the movable seat and the cutting mechanism provided in an embodiment of this application.

[0027] In the diagram: 1. Conveyor; 2. Traveling track; 21. Fixed plate; 22. Slide rail; 23. Slider; 3. Moving seat; 4. Driving component; 41. Rack; 42. Reducer II; 43. Drive motor II; 44. Gear; 5. Pressing unit; 6. Cutting mechanism; 7. Positioning mechanism; 11. Support frame; 12. Side plate; 13. Transmission roller; 14. Drive roller; 15. Drive motor; 16. Reducer; 17. Pulley; 18. Conveyor belt; 51. Lifting component; 52. Pressing plate; 511. Electric push rod; 512. Fixed plate; 521. Support rod; 522. Pressure plate; 523. Pressing piece; 61. Mounting frame; 62. Cylinder; 63. Mounting plate; 64. Fixed seat; 65. Cutting blade; 71. Guide rod; 72. Positioning plate. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] This application provides a paper cutter for printing, which solves the problem that paper cutters in related technologies are often relatively fixed and inconvenient to be flexibly adjusted according to actual production needs, thus affecting production efficiency.

[0030] Please see Figures 1-3 A paper cutting machine for printing includes: a conveyor 1 for conveying printing paper; two sets of traveling tracks 2 are arranged opposite each other on the conveyor 1; a movable seat 3 is slidably arranged on the traveling track 2; a driving member 4 is arranged on the movable seat 3; the driving member 4 is used to drive the movable seat 3 to move along the length of the traveling track 2; two pressing units 5 are arranged opposite each other between the tops of the two movable seats 3; the pressing units 5 are used to press the printing paper on the conveyor 1; a cutting mechanism 6 is arranged between the two movable seats 3; the cutting mechanism 6 cuts the printing paper; the pressing unit 5 includes a lifting member 51 arranged on the movable seat 3; and a pressing plate 52 arranged above the two lifting members 51 opposite each other; the lifting member 51 is used to drive the pressing plate 52 to rise and fall.

[0031] Conveyor 1 starts, transporting the printed paper to be cut according to the set direction and speed, so that the paper reaches the cutting area. At the same time, drive unit 4 operates, driving the moving seat 3 to move along the length of the travel track 2. By controlling drive unit 4, the position of moving seat 3 can be precisely adjusted to meet the needs of different cutting positions.

[0032] Once the paper reaches the cutting position, the lifting mechanism 51 activates, driving the pressure plate 52 to descend. The pressure plates 52 of the two opposing pressure units 5 work together to press and fix the printing paper on the conveyor 1, preventing the paper from moving or shaking during the cutting process and ensuring cutting accuracy. After the moving seat 3 moves to the appropriate position and the paper is pressed, the cutting mechanism 6 performs the cutting operation. After cutting is completed, the lifting mechanism 51 drives the pressure plate 52 to rise, releasing the paper, and the conveyor 1 continues to transport paper for the next cutting cycle.

[0033] The position of the cutting mechanism 6 can be easily adjusted by the movable seat 3 on the travel track 2 and the driving component 4 that drives the movable seat 3. This allows the paper to be cut into different specifications according to different cutting needs, improving the versatility and applicability of the paper cutter. The paper can be pressed and fixed by the cooperation of the lifting component 51 and the pressing plate 52, effectively preventing the paper from shifting due to force during cutting, ensuring the accuracy of cutting, improving the cutting quality, and reducing the scrap rate.

[0034] During operation, the entire cutting process is highly automated. Operators only need to set relevant parameters, such as the moving distance of the moving seat 3 and the cutting timing, and the paper cutter can automatically complete the paper feeding, pressing and cutting operations, reducing the difficulty of operation and labor intensity, and improving production efficiency.

[0035] The travel track 2 provides a stable travel track for the moving seat 3, ensuring smooth movement; the pressing unit 5 and the cutting mechanism 6 are integrated on the moving seat 3, which facilitates overall movement and coordinated work, making the overall structure of the paper cutter compact and occupying little space.

[0036] like Figure 2 and Figure 3 As shown, in one embodiment, the conveyor 1 includes a support frame 11, on which two side plates 12 are arranged opposite each other. Two drive rollers 13 are rotatably arranged between the two side plates 12. A drive roller 14 is rotatably arranged on the support frame 11 below the drive rollers 13. A conveyor belt 18 is connected between the outer sides of the two drive rollers 13 and the drive roller 14. A drive motor 15 and a reducer 16 are arranged on the support frame 11. The output shaft of the drive motor 15 is connected to the input shaft of the reducer 16. A pulley 17 is provided at one end of both the output shaft of the reducer 16 and one end of the drive roller 14. The two pulleys 17 are driven by a belt. Two sets of rollers are arranged vertically and vertically between the two side plates 12. The upper roller contacts the upper part of the inner wall of the conveyor belt 18, and the lower roller contacts the bottom of the conveyor belt 18.

[0037] When the drive motor 15 starts, its output shaft transmits power to the input shaft of the reducer 16. After the reducer 16 reduces speed and increases torque, the output shaft of the reducer 16 starts to rotate. The pulley 17 on the output shaft of the reducer 16 drives the pulley 17 at one end of the drive roller 14 to rotate via the belt, thereby causing the drive roller 14 to rotate.

[0038] After the drive roller 14 rotates, the conveyor belt 18 begins to circulate under the drive of the drive roller 14. The two drive rollers 13 support and guide the conveyor belt 18, enabling the conveyor belt 18 to run smoothly.

[0039] The upper and lower sets of rollers, which are rotatably arranged between the two side plates 12, have the upper rollers contacting the upper part of the inner wall of the conveyor belt 18 and the lower rollers contacting the bottom of the conveyor belt 18. This reduces the friction of the conveyor belt 18 during operation and provides support and tension for the conveyor belt 18, ensuring that the conveyor belt 18 always maintains a suitable tension and preventing slippage or slackness, thus ensuring the stability and accuracy of paper delivery.

[0040] like Figure 4 and Figure 5 As shown, specifically, the lifting component 51 in this embodiment includes an electric push rod 511 mounted on the movable seat 3, and a fixed disk 512 connected to the piston rod of the electric push rod 511.

[0041] When the printing paper is pressed, the electric push rod 511 receives a control signal and begins to operate. Its piston rod extends downward, causing the fixed plate 512 connected to it to descend. The descent of the fixed plate 512 drives the pressure plate 52 to descend, thereby pressing the printing paper on the conveyor 1. After cutting is completed, the piston rod of the electric push rod 511 retracts upward, causing the fixed plate 512 and the pressure plate 52 to rise, releasing the paper so that the conveyor 1 can continue to transport paper for the next cutting operation.

[0042] like Figure 4 and Figure 5 As shown, in one embodiment, the pressing plate 52 includes a support rod 521 connected to the bottom of the fixed plate 512, a pressure plate 522 disposed at the bottom of two adjacent support rods 521, a pressing piece 523 disposed at the bottom of the pressure plate 522, and the pressure plate 522 is convex.

[0043] When the electric push rod 511 of the lifting component 51 drives the fixed plate 512 to descend, the support rod 521 connected to the bottom of the fixed plate 512 will also descend. Since the pressure plate 522 is located at the bottom of the two adjacent support rods 521, the pressure plate 522 will also descend synchronously until the pressing plate 523 at the bottom of the pressure plate 522 contacts the printing paper on the conveyor 1, pressing and fixing the paper so that the cutting mechanism 6 can perform the cutting operation.

[0044] After the cutting is completed, the electric push rod 511 drives the fixed plate 512 to rise, and the support rod 521 and the pressure plate 522 also rise accordingly, releasing the paper. The conveyor 1 continues to transport the paper for the next cutting.

[0045] like Figure 4 and Figure 5As shown, in one embodiment, the cutting mechanism 6 includes a mounting frame 61 disposed between two movable seats 3, the mounting frame 61 being located between two pressing units 5; a cylinder 62 is disposed on the mounting frame 61, the piston rod of the cylinder 62 extends downward, a mounting plate 63 is disposed at the bottom end of the piston rod of the cylinder 62, a fixed seat 64 is disposed on one side of the mounting plate 63, and a cutting blade 65 is disposed at the bottom of the fixed seat 64.

[0046] When the printing paper is conveyed to the cutting position by the conveyor 1, the pressing unit 5 presses and fixes the paper, and the cutting mechanism 6 starts to work. The cylinder 62 receives the control signal, and its piston rod begins to extend downward. The mounting plate 63 moves downward as the piston rod extends. The cutting blade 65 is set at the bottom of the fixed seat 64, so the cutting blade 65 gradually approaches the paper as the mounting plate 63 descends. When the cutting blade 65 continues to descend to the appropriate position, it performs the cutting operation on the pressed printing paper.

[0047] After cutting, the piston rod of cylinder 62 retracts upward, causing the mounting plate 63, the fixed seat 64 and the cutting blade 65 to rise and return to their initial positions, ready for the next cutting operation.

[0048] The mounting bracket 61 is positioned between the two movable seats 3 and between the two clamping units 5, so that the cutting blade 65 can be accurately positioned at the position where the paper needs to be cut. By adjusting the movement of the movable seats 3, the overall position of the cutting mechanism 6 can be easily changed, thereby achieving precise control over different cutting positions and meeting the cutting needs of different paper sizes.

[0049] The cylinder 62 has a fast response speed, enabling it to complete the lifting and lowering of the cutting blade 65 in a short time, thereby improving cutting efficiency. At the same time, the cylinder 62 can provide stable and adjustable power output. By controlling the air intake and pressure of the cylinder 62, the extension speed and force of the piston rod can be precisely controlled, thereby controlling the cutting force of the cutting blade 65 on the paper.

[0050] like Figure 4 and Figure 5 As shown, it further includes a positioning mechanism 7, which includes guide rods 71 ​​arranged opposite to each other on both sides of the mounting frame 61. A positioning disk 72 is provided at the bottom of the guide rods 71. Two sliding holes are opened opposite each other on the mounting plate 63. The mounting plate 63 is slidably arranged on the two guide rods 71. When the mounting plate 63 moves downward and contacts the positioning disk 72, the bottom end of the cutting blade 65 contacts the upper surface of the conveyor belt 18.

[0051] The piston rod of cylinder 62 extends, causing mounting plate 63 to move downwards. Mounting plate 63 descends smoothly along guide rod 71. As mounting plate 63 continues to descend, it stops descending when it contacts positioning plate 72. At this point, the bottom end of cutting blade 65 contacts the upper surface of conveyor belt 18, completing the paper cutting operation.

[0052] Specifically, when the mounting plate 63 descends to contact the positioning plate 72, the relative position of the cutting blade 65 and the upper surface of the conveyor belt 18 is determined, ensuring that the cutting blade 65 cuts into the paper to a consistent depth each time, thereby greatly improving the cutting accuracy and ensuring the consistency of the paper size after cutting.

[0053] The guide rod 71 provides a stable guide for the lifting and lowering of the mounting plate 63. During the process of the cylinder 62 driving the mounting plate 63 to move, the guide rod 71 can prevent the mounting plate 63 from shaking or shifting, so that the cutting blade 65 always remains vertically descending and rising, ensuring the stability of the cutting process.

[0054] Due to the guiding and positioning functions of the guide rod 71 and the positioning plate 72, the wear and damage caused by uneven force on the cutting blade 65 during the cutting process are reduced, thus lowering the maintenance cost of the equipment.

[0055] like Figure 2 and Figure 3 As shown, the travel track 2 in this embodiment includes a fixed plate 21 disposed on the side plate 12, a slide rail 22 disposed on the fixed plate 21, a plurality of sliders 23 slidably disposed above the slide rail 22, and the movable seat 3 disposed above the corresponding plurality of sliders 23.

[0056] Multiple sliders 23 are slidably disposed above the slide rail 22, and the movable seat 3 is disposed above these corresponding sliders 23. When the movable seat 3 needs to be moved, the sliders 23 slide along the slide rail 22, thereby driving the movable seat 3 disposed above the sliders 23 to move on the travel track 2, thereby realizing the horizontal position adjustment of the movable seat 3.

[0057] Multiple sliders 23 together support the movable seat 3, which can withstand a large load.

[0058] like Figure 1 and Figure 3 As shown, in one embodiment, the driving component 4 includes a rack 41 disposed on a fixed plate 21, a reducer 42 disposed on a movable seat 3, and a drive motor 43 disposed on a movable seat 3. The output shaft of the drive motor 43 is connected to the input shaft of the reducer 42. The output shaft of the reducer 42 extends to the bottom of the movable seat 3. The output shaft of the reducer 42 is provided with a gear 44, which meshes with the corresponding rack 41.

[0059] When the moving seat 3 needs to move on the travel track 2, the second drive motor 43 starts. The output shaft of the second drive motor 43 transmits power to the input shaft of the second reducer 42. The second reducer 42 reduces and increases the torque of the power. The power after reduction and torque increase by the second reducer 42 is output from its output shaft, driving the gear 44 on it to rotate. Since the gear 44 meshes with the rack 41, according to the principle of gear and rack transmission, the rotational motion of the gear 44 will be converted into the linear motion of the moving seat 3 along the direction of the rack 41.

[0060] Under the meshing transmission of gear 44 and rack 41, the movable seat 3 slides on the slide rail 22 via the slider 23 connected below it, thereby realizing the movement of the movable seat 3 on the travel track 2. By controlling the forward and reverse rotation of drive motor 43, the rotation direction of gear 44 can be changed, thereby controlling the movement direction of movable seat 3.

[0061] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0062] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0063] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A paper cutter for printing, comprising: A conveyor (1) for conveying printing paper is characterized in that two sets of traveling tracks (2) are arranged opposite to each other on the conveyor (1), a movable seat (3) is slidably arranged on the traveling track (2), and a driving member (4) is arranged on the movable seat (3), the driving member (4) is used to drive the movable seat (3) to move along the length of the traveling track (2); Two pressing units (5) are arranged opposite each other between the tops of the two movable seats (3). The pressing units (5) are used to press the printing paper on the conveyor (1). A cutting mechanism (6) is arranged between the two movable seats (3). The cutting mechanism (6) cuts the printing paper. The pressing unit (5) includes a lifting member (51) disposed on the movable seat (3) and a pressing plate (52) disposed above the two lifting members (51) respectively. The lifting member (51) is used to drive the pressing plate (52) to rise and fall.

2. The paper cutter for printing as described in claim 1, characterized in that: The conveyor (1) includes a support frame (11), on which two side plates (12) are arranged opposite to each other, and two drive rollers (13) are rotatably arranged between the two side plates (12). A drive roller (14) located below the drive rollers (13) is rotatably arranged on the support frame (11), and a conveyor belt (18) is connected between the outer sides of the two drive rollers (13) and the drive roller (14). The support frame (11) is provided with a drive motor (15) and a reducer (16). The output shaft of the drive motor (15) is connected to the input shaft of the reducer (16). The output shaft of the reducer (16) and one end of the drive roller (14) are both provided with pulleys (17). The two pulleys (17) are driven by a belt.

3. A paper cutter for printing as described in claim 1, characterized in that: The lifting component (51) includes an electric push rod (511) mounted on a movable seat (3) and a fixed plate (512) connected to the piston rod of the electric push rod (511).

4. A paper cutter for printing as described in claim 3, characterized in that: The pressing plate (52) includes a support rod (521) connected to the bottom of the fixed plate (512), a pressure plate (522) disposed at the bottom of two adjacent support rods (521), a pressing piece (523) disposed at the bottom of the pressure plate (522), and the pressure plate (522) is convex.

5. A paper cutter for printing as described in claim 2, characterized in that: The cutting mechanism (6) includes a mounting bracket (61) disposed between two movable seats (3), the mounting bracket (61) being located between two clamping units (5); A cylinder (62) is provided on the mounting bracket (61). The piston rod of the cylinder (62) extends downward. A mounting plate (63) is provided at the bottom end of the piston rod of the cylinder (62). A fixing seat (64) is provided on one side of the mounting plate (63). A cutting blade (65) is provided at the bottom of the fixing seat (64).

6. A paper cutter for printing as described in claim 5, characterized in that: It also includes a positioning mechanism (7), which includes guide rods (71) arranged opposite to each other on both sides of the mounting bracket (61). A positioning plate (72) is provided at the bottom of the guide rods (71). Two sliding holes are opened opposite each other on the mounting plate (63). The mounting plate (63) is slidably arranged on the two guide rods (71). When the mounting plate (63) moves downward and contacts the positioning plate (72), the bottom end of the cutting blade (65) contacts the upper surface of the conveyor belt (18).

7. A paper cutter for printing as described in claim 2, characterized in that: The travel track (2) includes a fixed plate (21) set on the side plate (12), a slide rail (22) is set on the fixed plate (21), a plurality of sliders (23) are slidably set above the slide rail (22), and the moving seat (3) is set above the corresponding plurality of sliders (23).

8. A paper cutter for printing as described in claim 7, characterized in that: The driving component (4) includes a rack (41) mounted on a fixed plate (21), a second reducer (42) mounted on a movable seat (3), and a second drive motor (43). The output shaft of the second drive motor (43) is connected to the input shaft of the second reducer (42). The output shaft of the second reducer (42) extends to the bottom of the movable seat (3). The output shaft of the second reducer (42) is provided with a gear (44), which meshes with the corresponding rack (41).

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