Printer cutter structure stable in operation
By designing fixed blocks, guide grooves and guides in the printer cutter structure, limiting the running direction and trajectory of the moving tool, the problems of shaking and unstable shearing of the moving tool are solved, and a more stable shearing effect is achieved.
Patent Information
- Application Number
- CN202420123097.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-18
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-01-18
AI Technical Summary
When the existing printer cutter structure is half-cut or full-cut, the knife runs and shakes, resulting in unstable shear.
A cutting tool structure including a base, mounting cover, fixed knife, moving knife, fixing frame, stroke adjustment block, drive motor and guide groove is designed. Through the design of fixing blocks, guide grooves and guides, the running direction and trajectory of the moving tool are limited to prevent shaking and upturning.
Effectively prevents the operation of the drilling tool from shifting and upturning, improves shear stability, and is simple in structure, safe and reliable.
Smart Images
Figure CN222473714U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of printers, in particular to a printer cutter structure with stable operation. Background Art
[0002] The printer's cutter structure can be set to two working modes, half-cut and full-cut. Half-cut means that the print medium is not completely cut, and a small part is left connected in the middle or at one end; full-cut means that the print medium is completely cut.
[0003] The existing technology realizes half-cutting or full-cutting by driving the gears through the forward and reverse rotation of the motor, and the gears rotate to drive different stroke adjustment blocks to achieve the working requirements. When the printer is half-cutting, the gears need to push the stroke adjustment block to avoid the space for continuing circular motion. The process of pushing the stroke adjustment block and the process of the gear driving the moving knife to extend and retract is changing, which will cause a certain shaking of the moving knife, resulting in unstable shearing.
[0004] In view of this, the inventor specially designed a printer cutter structure with stable operation, and the present invention was thus produced. Utility Model Content
[0005] The utility model provides a printer cutter structure with stable operation, which at least solves the problems of shaking operation of the movable knife and unstable shearing of the existing printer cutter structure.
[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:
[0007] A printer cutter structure with stable operation comprises a base and a mounting cover, wherein a fixed knife and a movable knife are arranged opposite to each other on the base, a fixing frame is fixedly arranged on one end surface of the movable knife, and a movable groove is provided on the fixing frame; a stroke adjustment block is slidably arranged in the movable groove, and the stroke adjustment block is used to adjust the extension distance of the movable knife, one end of the movable groove protrudes to form a clamping block, and the clamping block is connected to the stroke adjustment block by a spring, a driving motor is arranged on the base, a worm is arranged at the driving end of the driving motor, and a working gear is matched with the worm gear transmission, a driving column is detachably mounted on the working gear, and the driving column performs circular motion in the movable groove under the rotation of the working gear, a plurality of guide grooves are provided on the mounting cover along the running direction of the movable knife, and a guide block sliding in the guide groove is fixedly arranged on the fixing frame.
[0008] In a further solution, the stroke adjustment block includes a stepped adjustment portion, above which is provided a sliding portion with an L-shaped cross section for sliding on the fixed frame, and a accommodating cavity for accommodating the spring is recessed inwardly on a thicker side end surface of the adjustment portion.
[0009] In a further solution, a guide member for guiding the movable knife and the fixed knife to operate in close engagement is fixedly provided on the mounting cover.
[0010] In a further solution, the limit member is in an inverted V shape, and the two free ends form a locking part for locking with the mounting cover, the two locking parts are connected by a bridging part, the locking part and the bridging part are not coplanar, and the locking part and the bridging part together form a guiding space for guiding the movement of the movable knife.
[0011] In a further solution, a fixing block for locking the moving knife and the fixing frame is fixedly provided on the other end surface of the moving knife.
[0012] In a further solution, the number of the guide grooves is two, and they are distributed on the areas of the mounting covers corresponding to the two ends of the fixing frame.
[0013] In a further solution, the number of the guide blocks is two.
[0014] In a further solution, the two side end surfaces of the guide block perpendicular to the moving direction of the movable knife abut against the inner wall of the guide groove.
[0015] In a further solution, it is characterized in that a paper picking detection device is also provided at a position near the movable knife inside the installation cover, for detecting whether there is paper at the paper outlet. Beneficial Effects
[0016] Compared with the prior art, the utility model has the following beneficial effects:
[0017] The utility model prevents the moving knife from deviating and warping during operation by arranging a fixing block, arranging a guide groove and a guide block on the mounting cover, and fixing a guide member on the mounting cover for guiding the moving knife to operate, thereby solving the technical problems of shaking of the moving knife and unstable shearing, and has the advantages of simple structure, safety and reliability.
[0018] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] in:
[0020] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;
[0021] Figure 2 It is a schematic diagram of the internal overall structure of the utility model;
[0022] Figure 3 It is a top view of the internal overall structure of the utility model;
[0023] Figure 4 This is an overall schematic diagram of the movable knife assembly of the utility model;
[0024] Figure 5 It is an overall schematic diagram of the guide member of the utility model;
[0025] Figure 6 It is an overall schematic diagram of the fixing frame of the utility model;
[0026] Figure 7 It is an overall schematic diagram of the stroke adjustment block of the utility model;
[0027] Figure 8 It is a schematic diagram of the overall structure of the utility model.
[0028] In the figure: 1. mounting cover; 11. guide groove; 2. base; 3. fixed knife; 4. movable knife; 5. fixing frame; 51. movable groove; 52. guide block; 53. fixing block; 54. clamping block; 6. guide member; 61. locking part; 62. bridging part; 63. guiding space; 71. driving motor; 72. worm; 73. working gear; 74. driving column; 8. stroke adjustment block; 81. sliding part; 82. adjusting part; 83. accommodating chamber; 84. spring; 9. paper picking detection device. DETAILED DESCRIPTION
[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.
[0030] like Figure 2 As shown, a stable printer cutter structure includes a base 2 and a mounting cover 1, wherein a fixed knife 3 and a movable knife 4 are arranged opposite to each other on the base 2, a fixing frame 5 is fixedly arranged on one end surface of the movable knife 4, and in order to further fix the movable knife 4 and the fixing frame 5, a fixing block 53 is fixedly arranged on the other end surface of the movable knife 4, and the three are locked into a whole by fasteners such as bolts or screws to increase stability to a certain extent.
[0031] like Figure 2 As described in FIG7 , a movable groove 51 is provided on the fixing frame 5. A stroke adjustment block 8 is slidably arranged in the movable groove 51. One end of the movable groove 51 is convex to form a clamping block 54. The clamping block 54 is connected to the stroke adjustment block 8 through a spring 84. The elastic element is a spring 84 or a torsion spring.
[0032] The stroke adjustment block 8 includes a stepped adjustment portion 82, and a sliding portion 81 with an "L"-shaped cross section for sliding on the fixed frame 5 is arranged above the adjustment portion 82. The stroke adjustment block 8 is stepped, so that different strokes can be changed by driving different step thicknesses, thereby achieving half-cutting or full-cutting of the movable knife 4. A receiving cavity 83 for accommodating a spring 84 is recessed inward on the side end surface of the thicker side of the adjustment portion 52, and the spring 84 is partially hidden inside. The force generated by the deformation of the spring 84 is only driven in the sliding direction, so that the conductivity of the entire force is good and the stability is also high, so that it will not easily detach from the stroke adjustment block 8 during operation. Furthermore, the space provided is saved to prevent paper scraps from falling in and causing the stroke adjustment block 8 to not return to its original position.
[0033] like Figure 3 As shown, a driving motor 71 is provided on the base 2, and a worm 72 is provided at the driving end of the driving motor 71, and the worm 72 is driven and matched with a working gear 73, and a driving column 74 is detachably mounted on the working gear 73, and the driving column 74 performs a circular motion in the movable groove 51 under the rotation of the working gear 73. This part is the power source of the printer cutter structure, and the driving column 74 that performs a circular motion can be driven by the forward and reverse rotation of the motor to drive different parts of the stepped stroke adjustment block 8 to achieve the working requirements.
[0034] like Figure 1 As shown, the mounting cover 1 is provided with a plurality of guide grooves 11 along the running direction of the movable knife 4, and the fixing frame 5 is fixedly provided with guide blocks 52 that slide in the guide grooves 11. The two side end surfaces of the guide blocks 52 perpendicular to the moving direction of the movable knife 4 abut against the inner wall of the guide grooves 11. This arrangement enables the guide blocks 52 to move in one direction close to the guide grooves 11. Because the guide blocks 52 are fixedly provided on the fixing frame 5 and indirectly fix the movable knife 4, the running direction of the movable knife 4 will not cause shaking due to the force of the driving column 74 changing in various directions. The effect of stable operation is achieved.
[0035] There are two guide grooves 11, which are distributed on the areas of the mounting cover 1 at both ends of the fixing frame 5, and two corresponding guide blocks are also provided. They are provided at the head and tail of the fixing frame 5 to play a better guiding role and further balance and offset the force generated by the driving column 74 at different positions.
[0036] like Figure 4 and Figure 5As shown, in order to further stabilize the operation of the movable knife 4, guide and limit the movable knife 4 to move along the corresponding trajectory, on the one hand, it is to better prevent the movable knife 4 from warping up during the process of cutting with the fixed knife 3, resulting in low shearing efficiency, and on the other hand, it is to relatively constrain the running trajectory of the movable knife 4 and better achieve the purpose of the operation of the entire structure. A guide member 6 for guiding the movable knife 4 and the fixed knife 3 to run in close engagement is fixedly provided on the mounting cover 1.
[0037] The guide member 6 is in an inverted V shape, and the two free ends form a locking portion 61 for locking with the mounting cover 1. The two locking portions 61 are connected by a bridge portion 62. The locking portion 61 and the bridge portion 62 are not coplanar. The locking portion 61 and the bridge portion 62 enclose a guide space 63 for guiding the movement of the movable knife. In this way, the movement trajectory of the movable knife 4 is limited to the corresponding area, preventing the movable knife 4 from moving left and right and up and down, and further increasing the stability of the entire cutter structure.
[0038] like Figure 8 As shown, a paper taking detection device 9 is provided inside the mounting cover 1 near the movable knife 4, for detecting whether there is paper at the paper outlet. When it is detected that there is paper at the paper outlet, the next paper will not be printed, in order to prevent the previous paper from being lost or the two papers from being damaged by adhesion when the next paper is printed after the paper is printed but not taken away.
[0039] In summary, in order to make the entire cutter structure run stably, the first thing is to set the fixed block 53, and further lock the original fixed setting of the moving knife 4 and the fixed frame 5 to make it a complete whole, which also indirectly makes the stroke adjustment block 8 stable in sliding. Secondly, a guide groove 11 is provided on the mounting cover 1, and the guide block 52 can only slide in the guide groove 11, which limits the running direction of the moving knife 4, so that the cutter structure runs stably. Finally, by directly guiding the running direction of the moving knife 4, a guide member 6 for guiding the running of the moving knife 4 is fixedly provided on the mounting cover 1. Prevent the moving knife 4 from deviating during operation. The above method solves the technical problems of shaking of the moving knife 4 and unstable shearing, so that the entire cutter structure runs stably.
[0040] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.
Claims
1. A printer cutter structure with stable operation, characterized in that: The invention comprises a base (2) and a mounting cover (1), wherein a fixed knife (3) and a movable knife (4) are arranged on the base (2) in opposite directions, a fixing frame (5) is fixedly arranged on one end surface of the movable knife (4), and a movable groove (51) is provided on the fixing frame (5); a stroke adjustment block (8) is slidably arranged in the movable groove (51), and the stroke adjustment block (8) is used to adjust the extension distance of the movable knife (4); one end of the movable groove (51) is protruded to form a clamping block (54), and the clamping block (54) is connected to the stroke adjustment block (8) via a spring (84); The base (2) is provided with a driving motor (71), a driving end of the driving motor (71) is provided with a worm (72), the worm (72) is coupled with a working gear (73), a driving column (74) is detachably mounted on the working gear (73), and the driving column (74) performs a circular motion in the movable groove (51) as the working gear (73) rotates; The mounting cover (1) is provided with a plurality of guide grooves (11) along the running direction of the movable knife (4), and the fixing frame (5) is fixedly provided with a guide block (52) which slides in the guide groove (11).
2. A stable printer cutter structure according to claim 1, characterized in that: The stroke adjustment block (8) comprises a stepped adjustment portion (82), a sliding portion (81) having an L-shaped cross section and used for sliding on the fixing frame (5) is arranged above the adjustment portion (82), and a receiving cavity (83) for receiving the spring (84) is recessed inwardly on a thicker side end surface of the adjustment portion (82).
3. A stable printer cutter structure according to claim 1, characterized in that: A guide member (6) is fixedly provided on the mounting cover (1) and is used to guide the movable knife (4) and the fixed knife (3) to run in close contact.
4. A stable printer cutter structure according to claim 3, characterized in that: The guide member (6) is in an inverted V-shape, and two free ends form locking portions (61) for locking with the mounting cover (1). The two locking portions (61) are connected via a bridging portion (62). The locking portions (61) and the bridging portion (62) are not coplanar. The locking portions (61) and the bridging portion (62) together form a guiding space (63) for guiding the movement of the movable knife (4).
5. A stable printer cutter structure according to claim 1, characterized in that: A fixing block (53) for locking the moving knife (4) and the fixing frame (5) is fixedly arranged on the other end surface of the moving knife (4).
6. A stable printer cutter structure according to claim 1, characterized in that: The number of the guide grooves (11) is two, and they are distributed on the areas of the mounting cover (1) corresponding to the two ends of the fixing frame (5).
7. A stable printer cutter structure according to claim 1, characterized in that: The number of the guide blocks (52) is two.
8. A stable printer cutter structure according to claim 7, characterized in that: The end surfaces of both sides of the guide block (52) perpendicular to the moving direction of the movable knife (4) abut against the inner wall of the guide groove (11).
9. A stable printer cutter structure according to any one of claims 1 to 8, characterized in that: The inside of the installation cover (1) near the movable knife (4) also includes a paper removal detection device (9) for detecting whether there is paper at the paper outlet.