Paper cutting device

Abstract

A paper cutting device comprises a frame body; the paper feeding mechanism is arranged on the frame body and is used for conveying paper slips; the fixing mechanism is arranged on the frame body, is positioned on the paper strip output side of the paper feeding mechanism, and comprises a paper suction plate, two paper guide frames and a negative pressure adsorption hole; the paper suction plate is parallel to the paper strip output direction; the two paper guide frames are located on the left side and the right side of the paper suction plate correspondingly so as to guide paper strips and enable the paper strips to be parallel to the paper suction plate and conveyed to the front of the paper suction plate. The negative pressure adsorption hole is formed in the paper adsorption plate and is used for adsorbing and fixing a paper strip on the paper adsorption plate; the paper cutting mechanism is arranged on the frame body, located between the paper feeding mechanism and the fixing mechanism and used for cutting off the paper strip. According to the technical scheme, the paper cutting device has the advantages that paper strips are fixed through negative pressure adsorption, the fixing effect is good, the paper strips are not prone to deformation, and the paper cutting effect is good.

Description

Technical Field

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

[0002] A paper cutter is installed in fax machines, copiers, printers, and similar devices to cut a roll of paper into sheets of predetermined length. A typical paper cutter consists of a paper feed mechanism, a fixing mechanism, and a cutting mechanism. The paper feed mechanism delivers a paper strip of a predetermined length to the fixing mechanism, which then secures the paper strip above it. The cutting mechanism then cuts the paper strip between the feed and fixing mechanisms, completing the paper cutting process.

[0003] However, current paper cutting devices typically use mechanical methods such as clamping and pressing the paper strip to secure the paper strip. This can easily cause the paper strip to deform and break, affecting the quality of the cut paper. Furthermore, during the paper feed mechanism's transfer to the securing mechanism, the paper can easily deform and deviate, preventing it from being properly fed to the securing mechanism. This prevents the paper strip from being properly secured, affecting the cutting effect. Utility Model Content

[0004] The purpose of the utility model is to provide a paper cutting device to address the defects and shortcomings of the existing technology, which has the advantages of using negative pressure adsorption to fix the paper strip, good fixing effect, not easily causing the paper strip to deform, and good paper cutting effect.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: a paper cutting device, comprising:

[0006] frame;

[0007] A paper feeding mechanism, provided on the frame, for feeding paper strips;

[0008] A fixing mechanism is provided on the frame, located on the paper strip output side of the paper feeding mechanism, and includes: a suction paper board, two paper guide frames, and negative pressure adsorption holes; the suction paper board is arranged parallel to the paper strip output direction; the two paper guide frames are respectively located on the left and right sides of the suction paper board to guide the paper strip so that it is parallel to the suction paper board and delivered to the front of the suction paper board; the negative pressure adsorption holes are provided on the suction paper board to adsorb and fix the paper strip to the suction paper board;

[0009] The paper cutting mechanism is arranged on the frame and located between the paper feeding mechanism and the fixing mechanism, and is used for cutting the paper strip.

[0010] The utility model is further provided that the paper guide frame includes: a first guide edge arranged on one side of the suction paper board, and a second guide edge connected to the first guide edge, located on the front side of the suction paper board, and extending parallel to the suction paper board toward the other side of the paper frame.

[0011] The present invention is further provided with a configuration in which the width of the second guide edge is 5 mm to 10 mm.

[0012] The present invention is further provided with that the suction paper board is movably mounted on the frame body, and the front and rear positions of the suction paper board can be adjusted.

[0013] The utility model is further provided with that the paper guide frame is movably arranged beside the paper suction paper board, and the left-right distance between the paper guide frame and the paper suction paper board can be adjusted.

[0014] The utility model is further provided that the paper feeding mechanism includes: a paper feeding roller, a paper feeding driving member for driving the paper feeding roller to rotate, and a paper pressing mechanism arranged on the side of the paper feeding roller and pressing toward the paper feeding roller to realize paper feeding.

[0015] The utility model is further provided that the paper pressing mechanism includes: a paper pressing sliding block slidably mounted on the frame, a paper pressing roller mounted on the paper pressing sliding block, and a paper pressing spring arranged between the paper pressing sliding block and the frame to press the paper pressing roller toward the paper feeding roller.

[0016] The present invention further provides a limit rod on the paper pressing sliding block 230, and a limit block is provided on the frame body to cooperate with the limit rod to limit the paper pressing position of the paper pressing roller;

[0017] The limiting rod is connected with a handle for pulling the paper pressing sliding block to slide and moving the paper pressing roller away from the paper feeding roller.

[0018] The utility model is further provided with the paper cutting mechanism comprising: a paper cutting base arranged between the paper feeding mechanism and the fixing mechanism, a cutter slidably arranged on the paper cutting base, and a paper cutting driving member for pushing the cutter to achieve paper cutting;

[0019] The cutter base is provided with a paper outlet for outputting the paper strip.

[0020] The present invention is further provided with paper guides below the paper cutting base and on both sides of the paper outlet to guide the paper strips output by the card feeding mechanism into the paper outlet.

[0021] After adopting the above technical solution, the beneficial effects of the utility model are:

[0022] 1. In the present invention, the paper strip is fixed by suction through the negative pressure adsorption holes, which is less likely to damage or deform the paper strip, thereby improving the paper cutting effect of the paper cutting device. In this embodiment, multiple negative pressure adsorption holes are provided, evenly distributed on the adsorption paper board, so that the paper strip can be simultaneously fixed by suction through multiple negative pressure adsorption holes, resulting in a better adsorption and fixing effect and less likely to cause deformation of the paper strip.

[0023] 2. In the present invention, two paper guide frames are respectively located on the left and right sides of the suction paper board to guide the paper strips, preventing the left and right sides of the paper strip suction paper board from deviating from the suction paper board, and ensuring that the paper strips can be input to the front of the suction paper board in parallel with the suction paper board. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0025] Figure 1 It is a structural diagram of the utility model;

[0026] Figure 2 It is a sectional view of the side of the utility model;

[0027] Figure 3 It is a structural diagram of the fixing mechanism of the utility model;

[0028] Figure 4 This is a structural diagram of the paper cutting mechanism of the utility model;

[0029] Figure 5 It is a structural diagram of the paper feeding mechanism of the utility model;

[0030] Figure 6 It is a structural schematic diagram of the paper feeding mechanism of the utility model from another perspective.

[0031] Explanation of the accompanying reference numerals: 100, frame; 200, paper feeding mechanism; 300, fixing mechanism; 400, paper cutting mechanism; 310, suction paper board; 320, paper guide frame; 330, negative pressure adsorption hole; 321, first guide edge; 322, second guide edge; 340, first sliding device; 210, paper feeding roller; 220, paper feeding drive; 230, paper pressing sliding block; 240, paper pressing roller; 250, paper pressing spring; 260, limiting rod; 110, limiting block; 270, limiting slot; 280, handle; 410, paper cutting base; 420, cutter; 430, cutter drive; 440, paper outlet; 450, paper guide. DETAILED DESCRIPTION

[0032] The present invention will be described in further detail below with reference to the accompanying drawings.

[0033] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

[0034] This embodiment relates to a paper cutting device, such as Figure 1-6 As shown, it includes: a frame 100 , a paper feeding mechanism 200 , a fixing mechanism 300 and a paper cutting mechanism 400 .

[0035] Among them, the paper feeding mechanism 200 is set on the frame 100 and is used to convey the paper strip; the fixing mechanism 300 is set on the frame 100 and is located on the paper strip output side of the paper feeding mechanism 200, so that the paper strip output by the paper feeding mechanism 200 is transmitted to the fixing mechanism 300, and after the paper feeding mechanism 200 outputs the paper strip of a set length, the paper strip is fixed; the paper cutting mechanism 400 is set on the frame 100 and is located between the paper feeding mechanism 200 and the fixing mechanism 300 to cut the paper strip from between the paper feeding mechanism 200 and the fixing mechanism 300 to complete the paper cutting process.

[0036] Specifically, the fixing mechanism 300 includes a suction plate 310, two paper guides 320, and negative pressure suction holes 330. The suction plate 310 is parallel to the paper strip output direction and is used to receive the paper strip output by the paper feed mechanism 200. The two paper guides 320 are located on the left and right sides of the suction plate 310 to guide the paper strip, preventing it from deviating from the suction plate 310 and ensuring that the paper strip is fed parallel to the suction plate 310 and into the front of the suction plate 310. The negative pressure suction holes 330 are provided on the suction plate 310. After the paper feed mechanism 200 outputs a paper strip of a set length to the fixing mechanism 300, negative pressure is generated to suction and secure the paper strip to the suction plate 310. This suction and securement of the paper strip by the negative pressure suction holes 330 prevents damage or deformation of the paper strip, thereby improving the paper cutting performance of the paper cutting mechanism. In this embodiment, a plurality of negative pressure adsorption holes 330 are provided, which are evenly distributed on the adsorption paper board 310, so that the paper strip can be adsorbed and fixed at the same time through the multiple negative pressure adsorption holes 330, which has a better adsorption and fixing effect and is less likely to cause deformation of the paper strip.

[0037] In the present invention, the paper guide frame 320 includes a first guide edge 321 disposed on one side of the paperboard 310, and a second guide edge 322 connected to the first guide edge 321. The first guide edge 321 is configured to block the left or right side of a paper strip, thereby confining the paper strip between the first guide edges 321 on either side, preventing the paper strip from deviating to either side of the paperboard 310, thereby causing the paper strip to bend and deform, and failing to be properly fixed to the paperboard 310. The second guide edge 322 is connected to the first guide edge 321, located at the front side of the paperboard 310, and extending parallel to the paperboard 310 toward the other side of the paper guide frame 320. This cooperates with the paperboard 310 to confine the paper strip between the paperboard 310 and the first guide edge 321, preventing the paper strip from moving away from the front side of the paperboard 310, thereby causing the paper strip to bend and deform, and failing to be properly fixed to the paperboard 310. In particular, when the paper feed mechanism conveys the paper strip upward, the securing device is positioned above the paper feed mechanism, and the paper suction plate 310 is positioned vertically, the second guide edge 322 effectively blocks the paper strip, preventing it from bending forward under the influence of gravity and thus affecting its securing and cutting. As a preferred embodiment, the width of the second guide edge 322 is 8 mm, ensuring that it effectively blocks the paper strip while not hindering subsequent removal of the cut paper from between the second guide edges 322. Of course, in other embodiments, the width of the second guide edge 322 can also be set to 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, or 10 mm, depending on the actual paper size and the dimensions of the paper suction plate 310.

[0038] As a preferred solution, the suction cardboard 310 is movably mounted on the frame 100, and the front-to-back position of the suction cardboard 310 can be adjusted, allowing the suction cardboard 310 to adjust its relative position with the paper feeding mechanism 200 to better receive and secure the paper strip. The distance between the suction cardboard 310 and the second guide edge 322 can also be adjusted, allowing the second guide edge 322 to better cooperate with the suction cardboard 310 to position the paper strip, preventing the paper strip from deviating from the suction cardboard 310, causing bending deformation and failure to achieve proper fixation. In this embodiment, the suction cardboard 310 is slidably mounted on the frame 100 via a first sliding device 340, and the position of the suction cardboard 310 can be adjusted by sliding it back and forth. Of course, in other embodiments, the suction cardboard 310 can also be movably mounted on the frame 100 in other ways to achieve front-to-back position adjustment of the suction cardboard 310.

[0039] As a preferred solution, the paper guide frame 320 is movably arranged on the side of the suction paper board 310, and the left and right distance between the paper guide frame 320 and the suction paper board 310 can be adjusted to adapt to paper strips of different sizes, thereby achieving a good guiding effect, so that the paper strips can be well transferred to the suction paper board 310, thereby achieving a good fixing effect.

[0040] In this embodiment, the paper feed mechanism 200 includes a paper feed roller 210, a paper feed drive 220 for driving the paper feed roller 210 to rotate, and a paper pressing mechanism disposed on the side of the paper feed roller 210 and pressing against the paper feed roller 210 to feed the paper. The paper pressing mechanism presses the paper strip against the paper feed roller 210, and the paper feed drive 220 drives the paper feed roller 210 to rotate. The paper feed roller 210 outputs the paper strip between the paper feed roller 210 and the paper pressing mechanism to the fixing mechanism 300, thereby achieving a stable paper strip output. As a preferred embodiment, the paper pressing mechanism includes a paper pressing slider 230, a paper pressing roller 240, and a paper pressing spring 250. The paper pressing sliding block 230 is slidably mounted on the frame 100, and the paper pressing roller 240 is mounted on the paper pressing sliding block 230 and can move along with the paper pressing sliding block 230. The paper pressing spring 250 is arranged between the paper pressing sliding block 230 and the frame 100 and can push the sliding block to slide toward the paper feeding roller 210 to press the paper pressing roller 240 toward the paper feeding roller 210, thereby achieving good paper pressing and paper feeding effects.

[0041] In this embodiment, a limiting rod 260 is also provided on the paper pressing slide 230, and a limiting block 110 is provided on the frame 100 to cooperate with the limiting rod 260. The limiting rod 260 and the limiting block 110 cooperate to limit the paper pressing position of the paper pressing roller 240, thereby ensuring a good paper pressing effect. A limiting groove 270 is provided on the limiting rod 260 to cooperate with the limiting block 110. The limiting rod 260 can be clamped onto the limiting block 110 through the limiting groove 270, which can better limit and fix the paper pressing slide, and the paper pressing slide 230 remains stable during the paper pressing process. As a preferred solution, a handle 280 for pulling the paper pressing slide 230 to slide is connected to the limiting rod 260. The paper pressing sliding block 230 can be pulled by the handle 280 to move the paper pressing roller 240 away from the paper feeding roller 210 , so as to facilitate adjustment of the paper strip in the paper feeding mechanism 200 or addition of paper strip to the paper feeding mechanism 200 .

[0042] In this embodiment, the paper cutting mechanism 400 includes a paper cutting base 410 disposed between the paper feeding mechanism 200 and the fixing mechanism 300, a cutter 420 slidably disposed on the paper cutting base 410, and a cutter 420 driving member for driving the cutter 420 to slide on the paper cutting base 410. The paper cutting base 410 is provided with a paper outlet 440 through which the paper strip is fed and discharged. The cutter 420 driving member drives the cutter 420 to slide on the paper cutting base 410, thereby cutting the paper strip at the paper outlet 440, thereby achieving a good paper cutting effect.

[0043] As a preferred solution, paper guides 450 are provided below the paper cutting base 410 and on both sides of the paper outlet 440. The paper guides 450 on both sides are connected to the paper feeding roller 210 and the paper pressing roller 240 to guide the paper strip well in the direction of the paper outlet 440 to ensure the smooth output of the paper strip.

[0044] The above is only used to illustrate the technical solution of the present invention and is not intended to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A paper cutting device, characterized in that: include: Frame (100); A paper feeding mechanism (200), arranged on the frame (100), for feeding paper strips; The fixing mechanism (300) is arranged on the frame (100) and located on the paper strip output side of the paper feeding mechanism (200), and comprises: a suction paper board (310), two paper guide frames (320) and a negative pressure adsorption hole (330); the suction paper board (310) is arranged parallel to the paper strip output direction; the two paper guide frames (320) are respectively located on the left and right sides of the suction paper board (310) to guide the paper strip so that it is parallel to the suction paper board (310) and is transported to the front of the suction paper board (310); the negative pressure adsorption hole (330) is arranged on the suction paper board (310) and is used to adsorb and fix the paper strip to the suction paper board (310); The paper cutting mechanism (400) is arranged on the frame (100) and located between the paper feeding mechanism (200) and the fixing mechanism (300), and is used for cutting the paper strip.

2. The paper cutting device according to claim 1, characterized in that: The paper guide frame (320) comprises: a first guide edge (321) arranged on one side of the suction paper board (310), and a second guide edge (322) connected to the first guide edge (321), located on the front side of the suction paper board (310), and extending parallel to the suction paper board (310) toward the other side of the paper frame.

3. The paper cutting device according to claim 2, characterized in that: The width of the second guide edge (322) is 5mm-10mm.

4. The paper cutting device according to claim 2, characterized in that: The suction paper board (310) is movably mounted on the frame (100), and the front and rear positions of the suction paper board (310) can be adjusted.

5. The paper cutting device according to claim 1, characterized in that: The paper guide frame (320) is movably arranged beside the suction paper board (310), and the left-right distance between the paper guide frame (320) and the suction paper board (310) can be adjusted.

6. The paper cutting device according to claim 1, characterized in that: The paper feeding mechanism (200) comprises: a paper feeding roller (210), a paper feeding driving member (220) for driving the paper feeding roller (210) to roll, and a paper pressing mechanism arranged on the side of the paper feeding roller (210) and pressing toward the paper feeding roller (210) to achieve paper feeding.

7. The paper cutting device according to claim 6, characterized in that: The paper pressing mechanism comprises: a paper pressing sliding block (230) slidably mounted on the frame (100), a paper pressing roller (240) mounted on the paper pressing sliding block (230), and a paper pressing spring (250) arranged between the paper pressing sliding block (230) and the frame (100) for pressing the paper pressing roller (240) toward the paper feeding roller (210).

8. The paper cutting device according to claim 7, characterized in that: A limiting rod (260) on the paper pressing sliding block (230), and a limiting block (110) is provided on the frame (100) for cooperating with the limiting rod (260) to limit the paper pressing position of the paper pressing roller (240); The limiting rod (260) is connected to a handle (280) for pulling the paper pressing sliding block (230) to slide and move the paper pressing roller (240) away from the paper feeding roller (210).

9. The paper cutting device according to claim 1, characterized in that: The paper cutting mechanism (400) comprises: a paper cutting base (410) arranged between the paper feeding mechanism (200) and the fixing mechanism (300), a cutter (420) slidably arranged on the paper cutting base (410), and a paper cutting driving member for pushing the cutter (420) to cut paper; The base of the cutter (420) is provided with a paper outlet (440) for outputting the paper strip.

10. The paper cutting device according to claim 9, characterized in that: Paper guides (450) are provided below the paper cutting base (410) and on both sides of the paper outlet (440) to guide the paper strip output by the paper feeding mechanism (200) into the paper outlet (440).

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