Printer with paper cutting mechanism
By installing an automatic grinding structure inside the cutting seat of the printer, the problem of the cutting knife becoming dull due to long-term use is solved, the rapid grinding and sharpness of the cutting knife is achieved, the maintenance process is simplified, and the efficiency of the printer is improved. .
Patent Information
- Application Number
- CN202421110936.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2025-02-11
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In existing label printers with paper cutting mechanisms, the cutting blade becomes dull due to long-term repeated cutting actions, which makes it impossible to cut the label paper smoothly, and requires complicated disassembly and grinding processes, which are inefficient.
Design a printer with an automatic grinding structure, which includes installing a grinding structure inside the cutting seat. The grinding structure consists of two grinding stones, arc springs and friction structures, which can be automatically grinded when the cutter moves up and down, and expands through The components and friction structure prevent grinding stones from wear and breaking.
It realizes automatic rapid polishing of the cutting knife, improves the sharpness of the cutting knife, simplifies the maintenance process, and improves the efficiency of the printer.
Smart Images
Figure CN222451756U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of printers, in particular to a printer with a paper cutting mechanism. Background Art
[0002] A label printer or smart label printer refers to a printer that does not need to be connected to a computer. It has its own input keyboard or smart touch screen operation, and has certain fonts, character libraries, and a considerable number of label template formats built in. Through the LCD screen on the body, you can directly input, edit, and layout the label content according to your needs, and then directly print out the output. The automatic paper cutting function of the printer is to provide automatic paper cutting (i.e. automatic paper cutting) when the function of printing continuous paper (such as supermarket tube receipts) is set.
[0003] During the use of an existing label printer with a paper cutting mechanism, the internal cutting blade may become blunt due to long-term repeated cutting actions, resulting in the inability to smoothly cut the label paper. At this time, the personnel need to first remove the paper cutting mechanism on the printer, and then disassemble the paper cutting mechanism, so that the cutter can be removed and polished, resulting in complicated blade polishing work and low blade polishing efficiency. Utility Model Content
[0004] The purpose of the utility model is to provide a printer with a paper cutting mechanism which can automatically grind a blade, and can solve the problems raised in the above-mentioned background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a printer with a paper cutting mechanism, comprising a cutting seat, wherein a blade that can move up and down is installed inside the cutting seat, and also comprising a grinding structure for grinding both sides of the blade, wherein the grinding structure is installed inside the cutting seat and is located on the upper side of the blade; an expansion component for driving the grinding structure away from the blade, wherein two symmetrically distributed expansion components are respectively installed at both ends of the grinding structure; a friction structure for preventing the grinding structure from being damaged by impact, wherein the friction structure is respectively installed at both ends of the grinding structure.
[0006] Preferably, the grinding structure includes two symmetrically distributed fixed plates, and the fixed plates are rotatably connected to the cutting seat, and grinding stones are fixedly installed on one side of the two fixed plates close to each other, and the cross-sectional shape of the two grinding stones at one end close to each other is semicircular.
[0007] Preferably, the grinding stone is close to the lower end of the fixed plate, and the connection between the grinding stone and the blade is a movable fit, so that the blade can contact and rub against the grinding stone during the up and down movement.
[0008] Preferably, a plurality of arc springs equidistantly distributed are fixedly installed on one side of the two fixing plates away from each other, the arc springs can drive the fixing plates to rotate, and one end of the arc spring away from the fixing plates is fixedly connected to the cutting seat.
[0009] Preferably, the expansion assembly includes a shaft rod pluggably connected to the cutting seat, the shaft rod is located on the outside of the cutting seat and is fixedly connected to a button at one end, an anti-slip groove is provided on the outside of the button, and the shaft rod is fixedly connected to a rectangular column at one end inside the cutting seat.
[0010] Preferably, an expansion plate is fixedly embedded at one end of the rectangular column away from the shaft rod, the rectangular column can prevent the expansion plate from rotating inside the cutting seat, and the connection between the expansion plate and the fixed plate is a movable abutment, and two symmetrically distributed card beads are movably embedded on the outer side of the rectangular column.
[0011] Preferably, the clamping bead is movably clamped with the rectangular column through a hemispherical clamping groove, a V-shaped spring piece is fixedly installed on the outer side of the clamping bead, the V-shaped spring piece is made of metal, and one end of the V-shaped spring piece away from the clamping bead is fixedly connected to the cutting seat.
[0012] Preferably, a cylindrical groove is provided inside the cutting seat corresponding to where the friction structure is installed, and the friction structure includes a turntable fixedly sleeved on the outer side, the diameter of the cylindrical groove is larger than the diameter of the turntable, and two symmetrically distributed cams are movably embedded inside the turntable.
[0013] Preferably, the cam is rotatably connected to the turntable via a positioning shaft, an anti-slip sleeve is fixedly sleeved on the outer side of the cam, the anti-slip sleeve can increase the friction between the cam and the cutting seat, and the anti-slip sleeve is movably fitted with the side wall of the cylindrical groove.
[0014] Preferably, two symmetrically distributed coil springs are fixedly sleeved on the outer side of the positioning shaft, and the outer ends of the coil springs are fixedly connected to the turntable. The coil springs can drive the cam to rotate, and a limited rotation groove is provided in the turntable corresponding to the installation position of the cam.
[0015] Compared with the prior art, the beneficial effects of the utility model are:
[0016] 1. The utility model installs a grinding structure, and the two grinding stones in the grinding structure can approach each other under the drive of an arc spring, so that when the cutter moves up and down to cut the label paper, the two grinding stones contact and rub against the two sides of the cutter, which is conducive to automatically grinding the cutter quickly and improving the sharpness of the cutter.
[0017] 2. The utility model installs an expansion assembly, in which an expansion plate can be inserted between two fixed plates, so that the two grinding stones are separated from each other, which is beneficial to prevent the cutter from being seriously worn due to long-term contact and friction with the grinding stone.
[0018] 3. The utility model installs a friction structure, in which the cam can contact and rub against the side wall of the cylindrical groove through the anti-skid pad when the two grinding stones are close to each other, thereby reducing the rotation speed of the turntable and the grinding stone, thereby effectively preventing the two grinding stones from colliding with each other and breaking under the drive of the arc spring. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is an overall schematic diagram of the utility model;
[0020] Figure 2 It is a side cross-sectional schematic diagram of the cutting seat of the utility model;
[0021] Figure 3 This is a schematic diagram of the cutting seat removal of the utility model;
[0022] Figure 4 This is a schematic diagram of the grinding structure and expansion components of the utility model;
[0023] Figure 5 It is a side cross-sectional schematic diagram of the friction structure of the cutting seat of the utility model;
[0024] Figure 6 It is an enlarged schematic side section of the friction structure of the utility model.
[0025] In the figure: 1. cutting seat; 2. blade; 3. grinding structure; 301. fixing plate; 302. positioning shaft; 303. grinding stone; 304. arc spring; 4. expansion assembly; 401. shaft; 402. rectangular column; 403. expansion plate; 404. card bead; 405. V-shaped spring; 5. friction structure; 501. turntable; 502. cam; 503. positioning shaft; 504. anti-slip sleeve; 505. coil spring; 506. limit rotation groove; 6. cylindrical groove. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0027] Example 1: Please refer to Figure 1 , Figure 2 , Figure 3The figure shows a printer with a paper cutting mechanism, including a cutting seat 1, a blade 2 that can move up and down is installed inside the cutting seat 1, and a grinding structure 3 for grinding both sides of the blade 2. The grinding structure 3 is installed inside the cutting seat 1 and is located on the upper side of the blade 2; an expansion component 4 for driving the grinding structure 3 away from the blade 2, and two symmetrically distributed expansion components 4 are respectively installed at both ends of the grinding structure 3; a friction structure 5 for preventing the grinding structure 3 from being damaged by impact, and the friction structure 5 is respectively installed at both ends of the grinding structure 3.
[0028] See also Figure 4 The grinding structure 3 includes two symmetrically distributed fixed plates 301, and the fixed plates 301 are rotatably connected to the cutting seat 1 through 302. The two fixed plates 301 are fixedly installed with grinding stones 303 on one side close to each other, and the cross-sectional shape of the two grinding stones 303 on one end close to each other is semicircular.
[0029] See also Figure 4 The grinding stone 303 is close to the lower end of the fixed plate 301, and the connection between the grinding stone 303 and the blade 2 is a movable fit, so that the blade 2 can contact and rub with the grinding stone 303 during the up and down movement.
[0030] See also Figure 4 A plurality of arc springs 304 equidistantly distributed are fixedly installed on the side of the two fixed plates 301 away from each other. The arc springs 304 can drive the fixed plates 301 to rotate, and one end of the arc spring 304 away from the fixed plates 301 is fixedly connected to the cutting seat 1.
[0031] The working principle of the automatic blade grinding is as follows: when grinding the blade 2, the two grinding stones 303 are fitted together under the drive of the arc spring 304. When the motor inside the cutting seat 1 drives the cutter 2 to move up to cut the label paper, the cutter 2 is inserted between the two grinding stones 303. The two grinding stones 303 are in contact and friction with the two sides of the cutter 2 respectively, which is conducive to automatic and rapid grinding of the cutter 2 and improving the sharpness of the cutter 2.
[0032] Example 2: Please refer to Figure 4 This embodiment further explains Example 1. The expansion component 4 includes a shaft rod 401 that is plugged and unplugged with the cutting seat 1. The shaft rod 401 is located on the outside of the cutting seat 1 and is fixedly connected to a button at one end. An anti-slip groove is provided on the outside of the button. The shaft rod 401 is fixedly connected to a rectangular column 402 at one end inside the cutting seat 1.
[0033] See also Figure 4An expansion plate 403 is fixedly embedded at one end of the rectangular column 402 away from the shaft 401. The rectangular column 402 can prevent the expansion plate 403 from rotating inside the cutting seat 1, and the connection between the expansion plate 403 and the fixed plate 301 is a movable abutment. Two symmetrically distributed card beads 404 are movably embedded on the outer side of the rectangular column 402.
[0034] See also Figure 4 The card bead 404 is movably connected to the rectangular column 402 through the hemispherical card slot, and a V-shaped spring piece 405 is fixedly installed on the outer side of the card bead 404. The V-shaped spring piece 405 is made of metal, and one end of the V-shaped spring piece 405 away from the card bead 404 is fixedly connected to the cutting seat 1.
[0035] In this embodiment: after the grinding of the cutter 2 is completed, the personnel presses a button to insert the two expansion plates 403 between the two fixed plates 301. Under the drive of the expansion plate 403, the lower ends of the two fixed plates 301 rotate away from each other, so that the two grinding stones 303 are separated. At this time, when the blade 2 moves up and down to cut the label paper, the cutter 2 will not contact the grinding stone 303, which is beneficial to prevent the cutter 2 from being seriously worn due to long-term contact and friction with the grinding stone 303.
[0036] Example 3: Please refer to Figure 5 This embodiment further illustrates other embodiments. A cylindrical groove 6 is provided inside the cutting seat 1 corresponding to the installation friction structure 5. The friction structure 5 includes a turntable 501 fixedly sleeved on the outside of 302. The diameter of the cylindrical groove 6 is larger than the diameter of the turntable 501. Two symmetrically distributed cams 502 are movably embedded inside the turntable 501.
[0037] See also Figure 6 The cam 502 is rotatably connected to the turntable 501 through the positioning shaft 503. The outer side of the cam 502 is fixedly sleeved with an anti-skid sleeve 504. The anti-skid sleeve 504 can increase the friction between the cam 502 and the cutting seat 1. The anti-skid sleeve 504 is movably fitted with the side wall of the cylindrical groove 6.
[0038] See also Figure 6 Two symmetrically distributed coil springs 505 are fixedly sleeved on the outer side of the positioning shaft 503, and the outer ends of the coil springs 505 are fixedly connected to the turntable 501. The coil springs 505 can drive the cam 502 to rotate, and a limited rotation groove 506 is provided in the turntable 501 corresponding to the installation position of the cam 502.
[0039] In this embodiment: during the process of the expansion plate 403 driving the two fixed plates 301 to rotate, the cam 502 can rotate inside the limiting groove 506. At this time, the cam 502 will not affect the rotation speed of the turntable 501. When the expansion plate 403 separates from the two fixed plates 301, the cam 502 cannot rotate due to the obstruction of the limiting groove 506. At this time, the anti-slip sleeve 504 on the outside of the cam 502 contacts and rubs against the inner wall of the cylindrical groove 6, so that the rotation speed of the turntable 501 and the fixed plate 301 is slowed down, thereby effectively preventing the two grinding stones 303 from colliding with each other and breaking under the drive of the arc spring 304.
[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "also include" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A printer with a paper cutting mechanism, comprising a cutting seat (1), wherein a blade (2) capable of moving up and down is installed inside the cutting seat (1), characterized in that: Also includes: A grinding structure (3) for grinding both sides of the blade (2), the grinding structure (3) being installed inside the cutting seat (1) and located on the upper side of the blade (2); An expansion component (4) used for driving the grinding structure (3) away from the blade (2), wherein two symmetrically distributed expansion components (4) are respectively installed at two ends of the grinding structure (3); The friction structure (5) is used to prevent the grinding structure (3) from being damaged by impact, and the friction structure (5) is respectively installed at two ends of the grinding structure (3).
2. A printer with a paper cutting mechanism according to claim 1, characterized in that: The grinding structure (3) comprises two symmetrically distributed fixing plates (301), and the fixing plates (301) are rotatably connected to the cutting seat (1) via (302), and a grinding stone (303) is fixedly mounted on one side of the two fixing plates (301) close to each other.
3. A printer with a paper cutting mechanism according to claim 2, characterized in that: The grinding stone (303) is close to the lower end of the fixing plate (301), and the grinding stone (303) and the blade (2) are connected in a movable manner.
4. A printer with a paper cutting mechanism according to claim 3, characterized in that: A plurality of arc springs (304) distributed at equal distances are fixedly mounted on the sides of the two fixed plates (301) away from each other, and one end of the arc spring (304) away from the fixed plate (301) is fixedly connected to the cutting seat (1).
5. The printer with a paper cutting mechanism according to claim 2, characterized in that: The expansion assembly (4) comprises a shaft rod (401) pluggably connected to the cutting seat (1), one end of the shaft rod (401) located outside the cutting seat (1) is fixedly connected to a button, and one end of the shaft rod (401) inside the cutting seat (1) is fixedly connected to a rectangular column (402).
6. A printer with a paper cutting mechanism according to claim 5, characterized in that: An expansion plate (403) is fixedly embedded in one end of the rectangular column (402) away from the shaft rod (401), and the expansion plate (403) is connected to the fixed plate (301) in a movable abutment manner. Two symmetrically distributed clamping beads (404) are movably embedded in the outer side of the rectangular column (402).
7. A printer with a paper cutting mechanism according to claim 6, characterized in that: The clamping bead (404) is movably clamped with the rectangular column (402) via a hemispherical clamping groove, a V-shaped spring sheet (405) is fixedly mounted on the outer side of the clamping bead (404), and one end of the V-shaped spring sheet (405) away from the clamping bead (404) is fixedly connected to the cutting seat (1).
8. The printer with a paper cutting mechanism according to claim 2, characterized in that: A cylindrical groove (6) is provided inside the cutting seat (1) corresponding to the location where the friction structure (5) is installed. The friction structure (5) comprises a rotating disk (501) fixedly sleeved on the outside of the (302). Two symmetrically distributed cams (502) are movably embedded inside the rotating disk (501).
9. A printer with a paper cutting mechanism according to claim 8, characterized in that: The cam (502) is rotatably connected to the rotating disk (501) via a positioning shaft (503); an anti-slip sleeve (504) is fixedly sleeved on the outer side of the cam (502); and the anti-slip sleeve (504) is movably fitted to the side wall of the cylindrical groove (6).
10. A printer with a paper cutting mechanism according to claim 9, characterized in that: Two symmetrically distributed coil springs (505) are fixedly sleeved on the outer side of the positioning shaft (503), and the outer ends of the coil springs (505) are fixedly connected to the rotating disk (501). A limited rotation groove (506) is provided in the rotating disk (501) at a location corresponding to the installation of the cam (502).