Cutting mechanism of a guillotine cutter

Abstract

The application relates to the technical field of paper cutting machines, in particular to a paper cutting mechanism of a paper cutting machine. The movable cutter holder capable of vibrating leftward and rightward is designed, so that the cutter body can exert reciprocating shearing force in the horizontal direction on the cutting position of paper when cutting the paper downward; compared with the cutter body structure moving in the simple vertical direction, the cutting process is more labor-saving, the burden of the hydraulic cylinder is greatly reduced, and the service life of the paper cutting mechanism is prolonged; a plurality of dovetail grooves are arranged on the cutter body, the side edges of the dovetail grooves can form sharp side edges, the cutting position of the paper can be reciprocally polished when the cutter body is vibrated, burrs at the cutting position of the paper are removed, the debris generated in the cutting process can be sucked into the suction pipeline in time through the dovetail grooves and be collected in a centralized manner, and manual cleaning of the debris is no longer needed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of paper cutting machine, in particular to a paper cutting mechanism of a paper cutting machine. BACKGROUND

[0002] The cutting knife of the existing paper cutting machine is mostly a guillotine knife structure, that is, the guillotine knife is pushed up and down by a hydraulic cylinder or an electric push rod to cut the stacked paper on the platform. For example, the paper cutting machine disclosed in the authorized announcement No. CN218504605U. Since the guillotine knife can only move up and down, it is more laborious to cut the whole stack of paper with large thickness, and the power requirement of the driving part is large. After cutting, burrs may exist on the edge of the paper, and small debris may be left on the platform after cutting, which needs to be manually removed.

[0003] Therefore, it is urgent to improve the paper cutting mechanism of the paper cutting machine, which can make the whole stack of paper with large thickness more labor-saving during cutting, reduce the burden of the driving part, and polish the paper cutting part during the cutting process to handle the burrs, and automatically remove the debris generated during cutting. SUMMARY

[0004] The technical problem to be solved by the present application is that the paper cutting mechanism of the paper cutting machine needs to be improved, which can make the whole stack of paper with large thickness more labor-saving during cutting, reduce the burden of the driving part, and polish the paper cutting part during the cutting process to handle the burrs, and automatically remove the debris generated during cutting.

[0005] In order to solve the above technical problems, the technical scheme adopted by the present application is:

[0006] A paper cutting mechanism of a paper cutting machine, comprising a paper cutting machine body, the paper cutting machine body comprising a bearing platform and a paper cutting mechanism body connected to the upper part of the bearing platform, the bearing platform being used for bearing the paper to be cut, and the paper cutting machine body being used for cutting the paper positioned on the bearing platform, characterized in that the paper cutting mechanism body comprises:

[0007] A portal frame, the portal frame comprising two upright columns and a cross beam, the two ends of the cross beam being respectively connected to the upper ends of the two upright columns, and the lower ends of the upright columns being fixedly connected to the upper part of the bearing platform;

[0008] Two limiting guide rails, the two limiting guide rails being respectively vertically connected to the inner sides of the two upright columns;

[0009] Two sliding blocks, the two sliding blocks being respectively slidingly connected to the two limiting guide rails;

[0010] A connecting frame, the two ends of the connecting frame in the X direction being respectively connected to the two sliding blocks;

[0011] A horizontal guide rail, the horizontal guide rail being arranged at the lower part of the connecting frame;

[0012] horizontal guide columns, two or more of the horizontal guide columns are distributed along a vertical direction, and two ends of each of the horizontal guide columns are connected to two of the sliding blocks, respectively;

[0013] a movable cutter holder, the movable cutter holder is located between the two sliding blocks, an upper portion of the movable cutter holder is provided with a first limiting portion which is in sliding fit with the horizontal guide rail, and the movable cutter holder is provided with a through hole which is in sliding fit with the horizontal guide column;

[0014] a spring, a gap is formed between the sliding block and the movable cutter holder, and the spring is sleeved on the horizontal guide column at a position relative to the gap between the sliding block and the movable cutter holder;

[0015] a small vibration device, the small vibration device is connected to a side portion of the movable cutter holder;

[0016] a cutter body, the cutter body is fixedly connected to a lower portion of the movable cutter holder, a plurality of dovetail grooves are distributed in a linear array on two surfaces of the cutter body along an X direction, lower ends of the dovetail grooves extend to a cutting edge of the cutter body, and upper ends of the dovetail grooves extend to positions close to an upper portion of the cutter body;

[0017] two suction pipes, the two suction pipes are connected to the lower portion of the movable cutter holder respectively, the two suction pipes are located on the two surfaces of the cutter body respectively, the suction pipes are horizontally arranged at the positions of the upper ends of the dovetail grooves, suction holes are formed in the suction pipes relative to the positions of each of the dovetail grooves, and end portions of the two suction pipes are communicated;

[0018] an air pump, the air pump is connected to the communication positions of the suction pipes through a hose;

[0019] a hydraulic cylinder, a cylinder body of the hydraulic cylinder is connected to the upper portion of the cross beam vertically and downward, and a piston rod of the hydraulic cylinder is connected to the connecting frame at a lower end thereof.

[0020] Further, in the paper cutting mechanism of the paper cutting machine, the cutting edge of the cutter body is arranged obliquely, and an included angle between the cutting edge and a horizontal plane is 5-10 degrees.

[0021] Further, in the paper cutting mechanism of the paper cutting machine, a groove for avoiding the cutter body is arranged in a position directly below the cutter body relative to the cutter body.

[0022] Further, in the paper cutting mechanism of the paper cutting machine, the dovetail groove of the cutter body is a straight groove.

[0023] Further, in the paper cutting mechanism of the paper cutting machine, the straight groove is parallel to a vertical direction.

[0024] Further, in the paper cutting mechanism of the paper cutting machine, the dovetail groove is in a wave shape.

[0025] Furthermore, in the paper cutting mechanism of the aforementioned paper cutter, the distance between two adjacent dovetail grooves is 2-5cm.

[0026] Furthermore, in the paper cutting mechanism of the aforementioned paper cutter, the difference between the width of the movable blade holder and the distance between the two sliders is 4-6 cm.

[0027] The beneficial effects of this invention are as follows: By designing a movable blade holder that can vibrate left and right, the cutter body can apply a horizontal reciprocating shearing force to the cutting part of the paper when cutting downwards. Compared with the cutter body structure that moves only vertically, the cutting process is more labor-saving, significantly reducing the burden on the hydraulic cylinder and improving the service life of the paper cutting mechanism. By setting multiple dovetail grooves on the cutter body, the side edges of the dovetail grooves can form sharp side blades. When the cutter body vibrates, it can reciprocate to polish the cutting part of the paper, removing burrs from the paper cutting part. By setting a suction pipe with a specific structure, the debris generated during the cutting process can be sucked into the suction pipe in time through each dovetail groove for centralized collection, eliminating the need for manual cleaning of debris later. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the paper cutting mechanism of a paper cutter according to Embodiment 1 of the present invention;

[0029] Figure 2 This is a front view of the paper cutting mechanism of a paper cutter according to Embodiment 1 of the present invention;

[0030] Figure 3 for Figure 2 A-direction cross-section view;

[0031] Figure 4 This is a front view of the paper cutting mechanism of a paper cutter according to Embodiment 2 of the present invention;

[0032] Label Explanation:

[0033] 1. Supporting platform; 11. Groove;

[0034] 2. Paper cutting mechanism body; 21. Gantry frame; 211. Column; 212. Crossbeam; 22. Limiting guide rail; 23. Slider; 24. Connecting frame; 241. Horizontal guide rail; 25. Horizontal guide column; 26. Movable knife holder; 27. Spring; 28. Small vibration device; 29. ​​Cutting knife body; 291. Dovetail groove; 292. Suction pipe; 210. Hydraulic cylinder. Detailed Implementation

[0035] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0036] Example 1

[0037] Please refer to Figures 1 to 3 A cutting mechanism of a paper cutter, comprising a paper cutter body, the paper cutter body comprising a bearing platform 1 and a cutting mechanism body 2 connected to the upper part of the bearing platform 1, the bearing platform 1 is used to bear the paper to be cut, the paper cutter body is configured to cut the paper positioned on the bearing platform 1, and the cutting mechanism body 2 comprises:

[0038] A portal frame 21, the portal frame 21 comprising two columns 211 and a cross beam 212, the two ends of the cross beam 212 are respectively connected to the upper ends of the two columns 211, and the lower ends of the columns 211 are fixedly connected to the upper part of the bearing platform 1;

[0039] Limiting guide rails 22, the two limiting guide rails 22 are respectively vertically connected to the inner sides of the two columns 211;

[0040] Sliding blocks 23, the two sliding blocks 23 are respectively slidingly connected to the two limiting guide rails 22;

[0041] Connecting frames 24, the X-directional two ends of the connecting frames 24 are respectively connected to the two sliding blocks 23;

[0042] Horizontal guide rails 241, the horizontal guide rails 241 are arranged on the lower part of the connecting frames 24;

[0043] Horizontal guide columns 25, the two or more horizontal guide columns 25 are distributed in the vertical direction, and the two ends of the horizontal guide columns 25 are respectively connected to the two sliding blocks 23;

[0044] Movable knife seats 26, the movable knife seats 26 are located between the two sliding blocks 23, and the upper parts of the movable knife seats 26 are provided with first limiting parts slidingly matched with the horizontal guide rails 241; the movable knife seats 26 are provided with through holes slidingly matched with the horizontal guide columns 25;

[0045] Springs 27, the sliding blocks 23 and the movable knife seats 26 have gaps therebetween, and the springs 27 are sleeved on the positions of the horizontal guide columns 25 relative to the gaps between the sliding blocks 23 and the movable knife seats 26;

[0046] Small vibration devices 28, the small vibration devices 28 are connected to the side parts of the movable knife seats 26;

[0047] Cutting knife bodies 29, the cutting knife bodies 29 are fixedly connected to the lower parts of the movable knife seats 26, and the two surfaces of the cutting knife bodies 29 are arranged in a linear array in the X-direction and are provided with a plurality of dovetail grooves 291, the lower ends of the dovetail grooves 291 extend to the cutting edges of the cutting knife bodies 29, and the upper ends of the dovetail grooves 291 extend to positions close to the upper parts of the cutting knife bodies 29;

[0048] Suction pipes 292, two of which are connected to the lower part of the movable cutter holder 26, and two of which are located on both sides of the cutter body 29, are horizontally arranged at the position of the upper end of the dovetail groove 291, and are provided with suction holes relative to the position of each dovetail groove 291, and the end portions of the two suction pipes 292 are communicated.

[0049] A gas pump is connected to the communication position of the suction pipe 292 through a hose.

[0050] A hydraulic cylinder 210, the cylinder body of which is vertically connected to the upper part of the cross beam 212, and the lower end of the piston rod of which is connected to the connecting frame 24.

[0051] As an optional embodiment, the dovetail groove 291 of the cutter body 29 is a straight groove.

[0052] As an optional embodiment, the straight groove is parallel to the vertical direction.

[0053] As an optional embodiment, the spacing between two adjacent dovetail grooves 291 is 2-5 cm. The difference between the width of the movable cutter holder 26 and the spacing between the two sliders 23 is 4-6 cm.

[0054] In the above embodiment, the difference between the width of the movable cutter holder 26 and the spacing between the two sliders 23 is an important factor affecting the amplitude of the left and right vibration of the movable cutter holder 26, and the appropriate amplitude of the spacing between two adjacent dovetail grooves 291 can ensure that the cutting surface of the whole stack of paper is fully polished and smooth. The vibration amplitude of the movable cutter holder 26 should not be too large or too small. If it is too large, it will affect the stability of the cutting of the cutter body 29, and if it is too small, it will be difficult to fully polish and smooth the cutting surface of the paper.

[0055] In the above embodiment, the small vibration device 28 is a prior art device, which includes any device that can cause vibration, such as a small vibration motor.

[0056] The working principle of the paper cutting mechanism of the above-mentioned paper cutting machine is as follows:

[0057] The whole stack of paper to be cut is positioned on the bearing platform 1, the cutting site is adjusted to be directly below the cutter body 29, the small vibration device 28 is controlled to vibrate, under the action of the spring 27, the movable knife holder 26 vibrates left and right along the horizontal guide rail 241, the air pump is turned on, the connecting frame 24 is driven downward by the hydraulic cylinder 210, the sliding block 23 slides downward along the limiting guide rail 22, and the vibrating cutter body 29 cuts the paper to be cut downward until the paper is completely cut off. During the cutting process, the cutting part of the paper is polished by the sharp blade formed by the side edge of the dovetail groove 291 of the cutter body 29, and the paper scraps generated during the cutting process are sucked upward to the suction pipeline 292 through the dovetail groove 291, and then are collected by the collection mechanism.

[0058] In the above embodiment, the movable knife holder 26 is designed to vibrate left and right, so that the cutter body 29 can apply a reciprocating shearing force in the horizontal direction to the cutting part of the paper when cutting the paper downward. Compared with the structure of the cutter body 29 moving in the vertical direction only, the cutting process is more labor-saving, the burden on the hydraulic cylinder 210 is greatly reduced, and the service life of the paper cutting mechanism is improved. By providing a plurality of dovetail grooves 291 on the cutter body 29, the side edge of the dovetail groove 291 can form a sharp side blade. When the cutter body 29 is vibrating, the cutting part of the paper can be reciprocally polished to remove burrs on the cutting part of the paper. By providing a suction pipeline 292 with a special structure, the debris generated during the cutting process can be sucked into the suction pipeline 292 through each dovetail groove 291 in time for centralized collection, and manual cleaning of the debris is no longer needed.

[0059] Embodiment 2

[0060] The paper cutting mechanism of the paper cutter described in Embodiment 1, please refer to Figure 4 The difference is that the blade of the cutter body 29 is obliquely arranged, and the included angle between the blade and the horizontal plane is 5-10 degrees.

[0061] In the above embodiment, due to the oblique arrangement of the blade of the cutter body 29, the blade will first contact the corners of the whole stack of paper when contacting the whole stack of paper. In combination with the left and right cutting mode, the whole stack of paper can be cut off more labor-savingly.

[0062] As an optional implementation, the bearing platform 1 is provided with a groove 11 for avoiding the cutter body 29 directly below the cutter body 29.

[0063] In the above embodiment, due to the oblique arrangement of the blade, the groove 11 structure is provided so that the blade can extend into the groove 11 of the bearing platform 1, ensuring that the whole stack of paper is completely cut off.

[0064] As an optional implementation, the shape of the dovetail groove 291 is wave-shaped.

[0065] In the above embodiment, since the blade has an inclination angle, when the blade cuts the paper stack, the shape of the dovetail groove 291 is wavy, which enables the edges of the dovetail groove 291 to contact the cutting surface of the paper stack at multiple angles, thereby achieving better polishing effect of the cutting surface and making the cutting surface more flat.

[0066] The above merely describes the embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent transformation or direct or indirect application in the related technical field based on the content of the present application specification and drawings is also included in the patent protection scope of the present application.

Claims

1. A cutting mechanism of a paper cutter, comprising a cutter body including a bearing platform for bearing a paper to be cut and a cutting mechanism body connected to an upper portion of the bearing platform for cutting the paper positioned on the bearing platform, characterized in that, The paper cutting mechanism body comprises: A gantry comprising two upright columns and a crossbeam, two ends of the crossbeam being respectively connected to upper ends of the two upright columns, lower ends of the upright columns being fixedly connected to an upper portion of a bearing platform; Two limiting guide rails being respectively vertically connected to inner sides of the two upright columns; Two sliders being respectively slidingly connected to the two limiting guide rails; A connecting frame, X-directional two ends of the connecting frame being respectively connected to the two sliders; A horizontal guide rail being arranged at a lower portion of the connecting frame; Two or more horizontal guide columns being distributed in a vertical direction, two ends of the horizontal guide columns being respectively connected to the two sliders; A movable knife seat being located between the two sliders, an upper portion of the movable knife seat being provided with a first limiting portion slidingly and matchingly connected with the horizontal guide rail; the movable knife seat being provided with a through hole slidingly matched with the horizontal guide column; A spring, a gap being formed between the slider and the movable knife seat, the spring being sleeved at a position of the horizontal guide column relative to the gap between the slider and the movable knife seat; A small vibration device being connected to a side portion of the movable knife seat; A cutter body being fixedly connected to a lower portion of the movable knife seat, a plurality of dovetail grooves being linearly arranged on two surfaces of the cutter body in the X direction, lower ends of the dovetail grooves extending to a cutting edge of the cutter body, upper ends of the dovetail grooves extending to positions close to an upper portion of the cutter body; Two suction pipes being respectively connected to a lower portion of the movable knife seat, the two suction pipes being respectively located on the two surfaces of the cutter body, the suction pipes being horizontally arranged at the positions of the upper ends of the dovetail grooves, the suction pipes being provided with suction holes relative to positions of each dovetail groove, end portions of the two suction pipes being communicated; An air pump being connected to the communicated positions of the suction pipes through a hose; A hydraulic cylinder, a cylinder body of the hydraulic cylinder being vertically and downwardly connected to an upper portion of the crossbeam, a lower end of a piston rod of the hydraulic cylinder being connected to the connecting frame.

2. The cutting mechanism of the paper cutter according to claim 1, wherein The cutting edge of the cutter body is obliquely arranged, and an included angle between the cutting edge and a horizontal plane is 5-10 degrees.

3. The cutting mechanism of the paper cutter according to claim 2, wherein The bearing platform is provided with a groove for avoiding the cutter body directly below the cutter body.

4. The cutting mechanism of the paper cutter according to claim 1, wherein The dovetail groove of the cutter body is a straight groove.

5. The cutting mechanism of the paper cutter according to claim 4, wherein The straight groove is parallel to the vertical direction.

6. The cutting mechanism of the paper cutter according to claim 2, wherein The dovetail groove is in a wave shape.

7. The cutting mechanism of the paper cutter according to claim 1, wherein A spacing between two adjacent dovetail grooves is 2-5 cm.

8. The cutting mechanism of the paper cutter according to claim 7, wherein A difference between a width of the movable knife seat and a spacing between the two sliders is 4-6 cm.

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