Semi-cutting mechanism of printer
By designing the printer's full-cut, half-cut and automatic flying paper mechanism, the problem of restricted use scenarios caused by the fixed specifications of the existing printer gap printing paper is solved, and flexible cutting and flying paper functions are realized, which improves the use scenarios of label printers.
Patent Information
- Application Number
- CN202421687150.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-07-17
AI Technical Summary
The gap printing paper specifications of existing printers are fixed, resulting in the use of label printers being restricted in scenarios where the length of the printing content is unlimited.
A full-cut, half-cut and automatic flying paper mechanism of a printer is designed, including a reduction gear set, a damping gear set, a drive assembly, a tool pressing gear, a half-cut assembly, a full-cut assembly and a flying paper assembly. Through the coordinated work of these components, flexible cutting and flying paper functions of printing paper are achieved.
It realizes automatic cutting and flying paper functions of printing paper, improves the usage scenarios of label printers, and facilitates users to print according to specific needs.
Smart Images
Figure CN222742427U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of printer equipment, in particular to a half-cutting mechanism of a printer. Background Art
[0002] A printer is an office equipment that is usually used to laminate or coat the surface of printed documents with a transparent film to increase the durability, aesthetics and protection of the documents. This type of printer is often used to produce various documents such as business cards, quotations, menus, posters, signs, maps, etc., making them more durable and resistant to water, stains, tearing and fading.
[0003] The printing paper used in the printers on the market is divided into two types of consumables: continuous printing and intermittent printing. The advantage of intermittent printing paper is that it is very convenient to peel off after printing, but because the specifications of intermittent printing paper are the same, in actual use, the length of the printed content is not limited in most cases, which narrows the use scenarios of label printers.
[0004] Therefore, it is necessary to provide a new half-cut mechanism of a printer to solve the above-mentioned technical problems. Utility Model Content
[0005] In order to solve the above technical problems, the utility model provides a full-cut, half-cut and automatic paper-flying mechanism of a printer. The utility model provides a full-cut, half-cut and automatic paper-flying mechanism of a printer. It includes a reduction gear group, a damping gear group, a driving component for driving the damping gear group to rotate, a knife pressure gear, a half-cut component, a full-cut component and a paper-flying component respectively installed on a mounting frame, the reduction gear group is respectively meshed with the damping gear group and the knife pressure gear, and the knife pressure gear drives the full-cut, half-cut and automatic paper-flying components to rotate when rotating; the damping gear group includes a large end gear, a small end gear, a torsion spring and a fixed rod, the fixed rod is fixedly installed on the mounting frame, the large end gear and the small end gear are respectively rotatably installed on the outer surface of the fixed rod, the large end gear and the small end gear are connected by the torsion spring, and the torsion spring is sleeved on the outer surface of the fixed rod.
[0006] Furthermore, the reduction gear set includes a first gear and a second gear, the first gear and the second gear are respectively rotatably mounted on the mounting frame, the first gear is respectively meshed with the small end gear and the second gear, and the second gear is meshed with the knife pressure gear.
[0007] Furthermore, the knife pressing gear is rotatably mounted on the mounting frame via a shaft, and the bottom plane of the knife pressing gear is used to transmit pressure to the half-cutting and full-cutting knives and cause them to swing.
[0008] Furthermore, the half-cut assembly includes a half-cut rocker arm, a flying paper mounting seat, a flying paper mounting cover and a cutter, one end of the half-cut rocker arm is bent inward, the middle part of the half-cut rocker arm is rotatably mounted on the flying paper mounting seat through a second shaft rod, the flying paper mounting seat is fixedly mounted on the mounting frame, the flying paper mounting cover is fixedly mounted on the top of the flying paper mounting seat, the cutter is fixedly mounted on the inwardly bent end of the half-cut rocker arm by rivets, and a baffle corresponding to the cutter is also provided at the bottom of the flying paper mounting seat.
[0009] Furthermore, one end of the baffle away from the cutter is bent inwardly, and the inwardly bent end of the baffle is connected to the inwardly bent end of the half-cut rocker via a tension spring.
[0010] Furthermore, the driving assembly includes a micro motor and a main gear, the micro motor is fixedly mounted on the mounting frame, the output end of the micro motor is fixedly connected to the main gear, and the main gear is meshed with the large end gear.
[0011] Compared with the related art, the full-cut, half-cut and automatic paper-flying mechanisms of the printer provided by the utility model have the following beneficial effects:
[0012] 1. When the torsion spring torque increases to the clamping state, the big end gear idles. When the torque increases to the point where the torsion spring cannot be clamped, the big end gear idles and the torque will not be transmitted to the small end gear and the half cutter. At this time, the cutter cannot cut the bottom paper. When the motor drives the big end gear to reverse, the torsion spring is in a self-locking state and drives the small end gear to rotate, and drives the pressure cutter gear to rotate through the first gear and the second gear in the reduction gear group, without full cutting and paper flying.
[0013] 2. The driving component drives the pressure knife gear to rotate, and drives the half-cutting component to rotate to realize the half-cutting function. The reverse pressure knife gear drives the full cutter to rotate and drives the paper flying torsion spring pull rod to rotate at the same time. When the paper flying torsion spring pull rod rotates, the hook at the top of the pull rod will hook the torsion spring of the paper flying gear group to compress it and drive the paper flying gear group to reverse. At this time, the entire paper flying gear group is in an energy storage state; when the swing arm continues to rotate, it will pull the entire paper flying mechanism forward and clamp the consumables. There is a corresponding reverse bevel on the paper flying mounting seat. The reverse bevel will pull the long rod extending from one end of the paper flying torsion spring downward to separate it from the swing arm and reset it, driving the paper flying gear group to reverse and eject the cut consumables, thereby preventing the consumables from remaining in the narrow gap of the equipment to facilitate the removal of the printed labels. The utility model can automatically cut and easily peel off the labels, thereby improving the use scenarios of the label printer. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the overall structure of the half-cutting mechanism of the printer provided by the utility model;
[0015] Figure 2 It is a schematic diagram of the exploded structure of the half-cutting mechanism of the printer provided by the utility model;
[0016] Figure 3 A schematic diagram of the structure of the half-cut assembly provided by the utility model;
[0017] Figure 4 A schematic cross-sectional view of the damping gear set provided by the utility model;
[0018] Figure 5 A schematic diagram of the combined structure of the half-cutting swing rod and the cutting knife provided by the utility model;
[0019] Figure 6 This is a structural schematic diagram of the baffle provided by the utility model.
[0020] Numbers in the figure: 1. Mounting frame; 2. Pressing knife gear; 3. Half-cutting assembly; 4. Big end gear; 5. Small end gear; 6. Torsion spring; 7. Fixed rod; 8. First gear; 9. Second gear; 10. Shaft rod one; 11. Push block; 12. Half-cutting rocker rod; 13. Flying paper mounting seat; 14. Flying paper mounting cover; 15. Cutter; 16. Baffle; 17. Shaft rod two; 18. Tension spring; 19. Micro motor; 20. Main gear; 21. Full-cutting assembly; 22. Flying paper assembly. DETAILED DESCRIPTION
[0021] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.
[0022] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 as well as Figure 6 ,in, Figure 1 This is a schematic diagram of the overall structure of the half-cutting mechanism of the printer provided by the utility model; Figure 2 It is a schematic diagram of the exploded structure of the half-cutting mechanism of the printer provided by the utility model; Figure 3 A schematic diagram of the structure of the half-cut assembly provided by the utility model; Figure 4 A schematic cross-sectional view of the damping gear set provided by the utility model; Figure 5 A schematic diagram of the combined structure of the half-cutting swing rod and the cutting knife provided by the utility model; Figure 6 This is a structural schematic diagram of the baffle provided by the utility model.
[0023] In the specific implementation process, Figure 1As shown, the half-cutting mechanism of the printer includes a reduction gear group, a damping gear group, a driving component for driving the damping gear group to rotate, a knife pressing gear 2, a half-cutting component 3, a full-cutting component 21 and a paper flying component 22, which are respectively installed on the mounting frame. The reduction gear group is respectively engaged with the damping gear group and the knife pressing gear 2. When the knife pressing gear 2 rotates, the half-cutting component 3 is driven to rotate. The knife pressing gear 2 is rotatably installed on the mounting frame 1 through a shaft 10. A push block 11 is fixed to the bottom of the knife pressing gear 2, and the push block 11 drives the half-cutting component 3 to rotate.
[0024] refer to Figure 4 As shown, the damping gear set includes a large end gear 4, a small end gear 5, a torsion spring 6 and a fixing rod 7. The fixing rod 7 is fixedly mounted on the mounting frame 1. The large end gear 4 and the small end gear 5 are respectively rotatably mounted on the outer surface of the fixing rod 7. The large end gear 4 and the small end gear 5 are connected by a torsion spring 6. The torsion spring 6 is sleeved on the outer surface of the fixing rod 7. When the torque of the torsion spring 6 increases to a clamping state, the large end gear 4 idles and the torque will not be transmitted to the small end gear 5. When the torque of the torsion spring 6 increases to a clamping state, the large end gear 4 drives the small end gear 5 to rotate. The driving component includes a micro motor 19 and a main gear 20. The micro motor 19 is fixedly mounted on the mounting frame 1. The output end of the micro motor 19 is fixedly connected to the main gear 20, and the main gear 20 is meshed with the large end gear 4.
[0025] refer to Figure 1 and Figure 2 As shown, the reduction gear set includes a first gear 8 and a second gear 9. The first gear 8 and the second gear 9 are respectively rotatably mounted on the mounting frame 1. The first gear 8 is respectively meshed with the small end gear 5 and the second gear 9. The second gear 9 is meshed with the cutter pressing gear 2. The cutter pressing gear 2 is driven to rotate by the first gear 8 and the second gear 9 in the reduction gear set.
[0026] In a preferred embodiment, reference Figure 3-Figure 5 As shown, the half-cut assembly 3 includes a half-cut swing rod 12, a flying paper mounting seat 13, a flying paper mounting cover 14 and a cutter 15. One end of the half-cut swing rod 12 is bent inwardly, and the middle part of the half-cut swing rod 12 is rotatably mounted on the flying paper mounting seat 13 through an axle rod 17. The flying paper mounting seat 13 is fixedly mounted on the mounting frame 1, and the flying paper mounting cover 14 is fixedly mounted on the top of the flying paper mounting seat 13. The cutter 15 is fixedly mounted on the inwardly bent end of the half-cut swing rod 12 by rivets, and a baffle 16 corresponding to the cutter 15 is also provided at the bottom of the flying paper mounting seat 13.
[0027] It should be noted that the reference Figure 6As shown, the end of the baffle 16 away from the cutter 15 is bent inward, and the inwardly bent end of the baffle 16 is connected to the inwardly bent end of the half-cut rocker 12 through a tension spring 18. After the half-cut action is completed, the micro motor 19 drives the knife pressure gear 2 to reverse the cutter 15 in the half-cut assembly 3 through the tension spring 18. Under the action of the restoring force of the tension spring 18, the consumables stuck on the blade of the cutter 15 can be ejected outward, thereby preventing the consumables from sticking to the half-cut cutter 15.
[0028] The working principle provided by the utility model is as follows: the main gear 20 is driven to rotate by the micro motor 19, and the main gear 20 transmits power to the damping gear set, and the damping effect is achieved by the clamping force of the torsion spring 6. When the torsion force of the torsion spring 6 increases to the clamping state, the large end gear 4 idles, and the torque will not be transmitted to the small end gear 5. When the torsion force of the torsion spring 6 increases to the clamping state, the large end gear 4 drives the small end gear 5 to rotate, and drives the knife pressing gear 2 to rotate through the first gear 8 and the second gear 9 in the reduction gear set. When the knife pressing gear 2 rotates clockwise, the knife pressing The push block 11 of the gear 2 pushes one end of the half-cut rocker arm 12, and the other end of the half-cut rocker arm 12 drives the cutter 15 to move toward the baffle 16 to complete the half-cut action. After the half-cut action is completed, the micro motor 19 drives the pressure cutter gear 2 to reverse and the cutter 15 in the half-cut assembly 3 is reset through the tension spring 18. When the blade of the cutter 15 reaches the bottom, the pressure used by the cutter 15 to cut the surface paper of the consumable is much smaller than the pressure of the bottom paper of the consumable. At this time, when the torsion force of the torsion spring 6 of the damping gear group is greater than the friction force of the torsion spring 6, the small end gear 5 shaft cannot be clamped, and the large end gear 4 is idling.
[0029] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.
[0030] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A half-cutting mechanism of a printer, characterized in that: The invention comprises a reduction gear set, a damping gear set, a driving assembly for driving the damping gear set to rotate, a knife pressing gear (2) and a half-cutting assembly (3) which are respectively mounted on a mounting frame (1); the reduction gear set is respectively meshed with the damping gear set and the knife pressing gear (2); when the knife pressing gear (2) rotates, the half-cutting assembly (3) is driven to rotate; The damping gear set comprises a large end gear (4), a small end gear (5), a torsion spring (6) and a fixing rod (7); the fixing rod (7) is fixedly mounted on the mounting frame (1); the large end gear (4) and the small end gear (5) are rotatably mounted on the outer surface of the fixing rod (7) respectively; the large end gear (4) and the small end gear (5) are connected via the torsion spring (6); and the torsion spring (6) is sleeved on the outer surface of the fixing rod (7).
2. The half-cutting mechanism of the printer according to claim 1, characterized in that: The reduction gear set comprises a first gear (8) and a second gear (9), wherein the first gear (8) and the second gear (9) are rotatably mounted on the mounting frame (1) respectively, the first gear (8) is meshed with the small end gear (5) and the second gear (9) respectively, and the second gear (9) is meshed with the knife pressing gear (2).
3. The half-cutting mechanism of the printer according to claim 2, characterized in that: The knife pressing gear (2) is rotatably mounted on the mounting frame (1) via a shaft rod (10); the bottom plane of the knife pressing gear (2) is used to transmit pressure to the half-cutting and full-cutting knives and cause them to swing.
4. The half-cutting mechanism of the printer according to claim 3, characterized in that: The half-cut assembly (3) comprises a half-cut swing rod (12), a paper-flying mounting seat (13), a paper-flying mounting cover (14) and a cutter (15); one end of the half-cut swing rod (12) is bent inwardly; the middle part of the half-cut swing rod (12) is rotatably mounted on the paper-flying mounting seat (13) via a second shaft rod (17); the paper-flying mounting seat (13) is fixedly mounted on the mounting frame (1); the paper-flying mounting cover (14) is fixedly mounted on the top of the paper-flying mounting seat (13); the cutter (15) is fixedly mounted on the inwardly bent end of the half-cut swing rod (12) via rivets; and a baffle (16) corresponding to the cutter (15) is further provided at the bottom of the paper-flying mounting seat (13).
5. The half-cutting mechanism of the printer according to claim 4, characterized in that: One end of the baffle (16) away from the cutter (15) is bent inwardly, and the inwardly bent end of the baffle (16) is connected to the inwardly bent end of the half-cut rocker (12) via a tension spring (18).
6. The half-cutting mechanism of the printer according to claim 5, characterized in that: The driving assembly comprises a micro motor (19) and a main gear (20); the micro motor (19) is fixedly mounted on the mounting frame (1); the output end of the micro motor (19) is fixedly connected to the main gear (20); and the main gear (20) is meshed with the large end gear (4).