A printer facilitating troubleshooting

Abstract

A printer facilitating troubleshooting, the printer comprising: a base; a moving blade group provided on the base, the moving blade group being linearly reciprocally movable on the base; a linkage system including a special-shaped member, an elastic member that can be telescoped along the moving direction of the moving blade group, and a driving component for driving the special-shaped member to rotate, two ends of the elastic member being respectively connected to the moving blade group and the base; the special-shaped member having a convex portion, when the special-shaped member rotates, the convex portion pushes the moving blade group to move; when the convex portion disengages from the cooperation with the moving blade group, the elastic member makes the moving blade group move in the opposite direction to the pushing direction of the convex portion through an elastic force. The present invention quickly eliminates the phenomenon of blade jamming through the linkage system, facilitating the operator to take out the jammed recording paper, avoiding damage to the movable blades of the moving blade group, and eliminating the need for forced opening of the cover for operation, having the advantages of convenient troubleshooting, protecting the moving blade group, and avoiding misoperation.

Description

Technical Field

[0001] The invention relates to a printer with convenient troubleshooting. Background Art

[0002] There are many printers with cutters that are equipped with a cutting mechanism for cutting printed recording paper. The cutting mechanism is typically constructed of a fixed blade and a slidable movable blade. When cutting the recording paper, the movable blade slides so as to straddle the upper surface of the fixed blade. Afterwards, the two blades clamp the recording paper in the middle like scissors and cut it. However, the fixed blade and the movable blade often bite each other due to the jamming of the recording paper when cutting. If such an engagement occurs, printing needs to be interrupted and a recovery operation needs to be performed immediately. Moreover, the recovery process often requires forcibly opening the cover and manually retracting the movable blade, which has the problem of easily damaging the blades of the movable blade and the fixed blade, and the recovery operation is complicated and inefficient. Summary of the Invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a printer that is convenient for troubleshooting.

[0004] In order to solve the above technical problems, the present invention adopts the following technical measures:

[0005] A printer that facilitates troubleshooting, the printer comprising:

[0006] base;

[0007] A movable knife assembly is provided on the base, and the movable knife assembly can move linearly back and forth on the base;

[0008] The linkage system includes a special-shaped member, an elastic member that can be extended and retracted along the moving direction of the movable knife group, and a driving assembly that drives the special-shaped member to rotate, wherein the two ends of the elastic member are respectively connected to the movable knife group and the base;

[0009] The special-shaped part has a protrusion, and when the special-shaped part rotates, the protrusion pushes the movable knife group to move; when the protrusion is disengaged from the movable knife group, the elastic part causes the movable knife group to move in the opposite direction of the push of the protrusion through elastic force.

[0010] The present invention can be further improved by the following technical measures:

[0011] As a further improvement, the special-shaped part is a convex shaft, one side of the special-shaped part is cut away to form a clearance portion, and the special-shaped part pushes the side wall of the movable knife assembly.

[0012] As a further improvement, the driving component includes a rotatable handle, the handle is provided on the base, the special-shaped part is fixedly connected to the handle, and the special-shaped part rotates together with the handle.

[0013] As a further improvement, the driving component includes a pushing member and a gear meshing with the pushing member, and the special-shaped part is fixedly connected to the gear.

[0014] As a further improvement, the pushing member is a linearly movable rack, or the pushing member is a rotatable driving wheel.

[0015] As a further improvement, the elastic member is a spiral spring.

[0016] As a further improvement, the moving knife group includes a moving knife support, the moving knife support is provided with a limiting portion protruding to the side, the base is provided with a limiting groove cooperating with the limiting portion, and the limiting groove is arranged along the moving direction of the moving knife group.

[0017] As a further improvement, the moving knife group further includes a movable blade and a driving system provided on the moving knife support, the driving system is linked with the movable blade and drives the movable blade to perform linear reciprocating motion.

[0018] As a further improvement, a system controller and a position switch are further included. When the moving knife group is in a stuck-knife state, the driving component drives the special-shaped part to rotate. After the driving component runs in place, it triggers the position switch. After the position switch is triggered, it sends information to the system controller, and after receiving the information of the position switch, the system controller issues a control instruction.

[0019] As a further improvement, the system controller is connected to the driving system. The driving system includes a transmission component linking the movable blade and a motor driving the transmission component through a connecting member. The transmission component drives the movable blade to perform linear reciprocating motion; the system controller controls the motor to rotate in the reverse direction, and the transmission component releases the resistance.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] The movable knife group is driven to move linearly back and forth by the linkage system, so that when the movable blade is stuck, the jam can be removed by dragging the movable knife group. The linkage system realizes the reciprocating movement of the movable knife group through a special-shaped part and an elastic part with elasticity. When the special-shaped part rotates, the protrusion pushes the movable knife group to move; when the protrusion disengages from the movable knife group, the elastic part causes the movable knife group to move in the opposite direction of the push of the protrusion through elastic force. The present invention quickly removes the jam through the linkage system, making it easy for the operator to remove the stuck recording paper and avoid damage to the movable blade of the movable knife group. There is no need to forcibly open the cover for operation, and it has the advantages of convenient troubleshooting, protection of the movable knife group, and avoidance of misoperation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Attachment Figure 1 is a schematic diagram of an embodiment of a printer for facilitating troubleshooting of the present invention;

[0023] Attachment Figure 2 It is attached Figure 1 A top view of the printer is shown to facilitate troubleshooting;

[0024] Attachment Figure 3 It is attached Figure 1 A schematic diagram showing the disengagement of the cam portion of the cam shaft from the movable knife assembly in a printer for easy troubleshooting.

[0025] Attachment Figure 4 is a schematic diagram of another embodiment of a printer for facilitating troubleshooting of the present invention;

[0026] Attachment Figure 5 is a schematic diagram of another embodiment of a printer for facilitating troubleshooting of the present invention;

[0027] Description of main component symbols

[0028] Base 1 Fixed blade 11 Limiting groove 12 Pre-tightening mechanism 13 Moving blade assembly 2 Moving blade bracket 21

[0029] Movable blade 22 Drive system 23 Worm 231 Worm gear 232 Motor 233

[0030] Return spring 234 Connecting piece 235 Linkage system 3 Special-shaped piece 31 Drive assembly 32

[0031] Elastic member 33 Protrusion 312 Distance-releasing portion 311 Side wall 211 Limiting portion 212

[0032] Detection switch 41 In-position switch 42

[0033] Gear 321 Pushing member 322 DETAILED DESCRIPTION

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0036] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "plurality" means two or more unless otherwise specifically defined.

[0037] In the present invention, unless otherwise clearly defined and limited, terms such as "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0039] Embodiment 1: [[ID=1b]]

[0040] Please refer to Figures 1 to 3, the printer includes a base 1, a moving blade group 2 and a linkage system 3. The moving blade group 2 is provided on the base 1, and the moving blade group 2 can linearly reciprocate on the base 1. The linkage system 3 is connected to the moving blade group 2 to drive the moving blade group 2 to linearly reciprocate.

[0041] A fixed blade 11 is also provided on the base 1. The movable blade 22 is used to cooperate with the fixed blade 11 to cut the recording paper. A pre-tightening mechanism 13 is further included. The pre-tightening mechanism 13 acts on the movable blade 22 to make there be a contact pressure between the movable blade 22 and the fixed blade 11.

[0042] Please refer to Figure 2 , moving blade group 2: includes a moving blade support 21, a movable blade 22 and a drive system 23. The movable blade 22 and the drive system 23 are provided on the moving blade support 21. The drive system 23 is linked with the movable blade 22 and drives the movable blade 22 to linearly reciprocate.

[0043] The moving blade support 21 is provided with a bent edge in a direction away from the base 1. A protruding limiting portion 212 is provided on the side of the moving blade support 21. The limiting portion 212 extends along a direction perpendicular to the moving direction of the moving blade group 2. The base 1 is provided with a limiting groove 12 that cooperates with the limiting portion 212. The limiting groove 12 is arranged along the moving direction of the moving blade group 2. The limiting portion 212 and the limiting groove 12 play a guiding and limiting role during the movement of the moving blade group 2.

[0044] The drive system 23 includes a motor 233, a worm 231 and a worm gear 232. The motor 233 is connected to the worm 231, and the worm gear 232 meshes with the worm 231. The worm gear 232 is connected to the movable blade 22 through an eccentric connecting rod, that is, a cam drive connection method is adopted between the worm gear 232 and the movable blade 22. The worm gear 232 drives the movable blade 22 to linearly reciprocate. The motor 233 can rotate bidirectionally.

[0045] Please refer to Figure 2 , linkage system 3: includes a special-shaped part 31, an elastic part 33 and a drive component 32. The elastic part 33 can expand and contract along the moving direction of the moving blade group 2. Two ends of the elastic part 33 are respectively connected to the moving blade group 2 and the base 1. The drive component 32 is connected to the special-shaped part 31 and drives the special-shaped part 31 to rotate.

[0046] The special-shaped part 31 has a protrusion 312. When the special-shaped part 31 rotates, the protrusion 312 pushes the moving cutter group 2 to move. When the protrusion 312 disengages from the cooperation with the moving cutter group 2, the elastic member 33 makes the moving cutter group 2 move in the opposite direction to the direction pushed by the protrusion 312 through elastic force. The opposite direction refers to the direction opposite to the pushing direction of the protrusion 312.

[0047] The linkage system 3 drives the moving cutter group 2 to linearly reciprocate, so that when the movable blade 22 of the moving cutter group 2 gets stuck, the stuck state can be released by dragging the moving cutter group 2. And the linkage system 3 realizes the reciprocating movement of the moving cutter group 2 through the special-shaped part 31 and the elastic member 33 with elasticity. When the special-shaped part 31 rotates, the protrusion 312 pushes the moving cutter group 2 to move; when the protrusion 312 disengages from the cooperation with the moving cutter group 2, the elastic member 33 makes the moving cutter group 2 move in the opposite direction to the direction pushed by the protrusion 312 through elastic force. The present invention quickly releases the stuck state through the linkage system 3, which is convenient for the operator to take out the stuck recording paper, avoids damage to the movable blade 22 of the moving cutter group 2, and does not require forced opening of the cover for operation, having the advantages of convenient troubleshooting, protecting the moving cutter group 2, and avoiding misoperation.

[0048] Please refer to Figures 1 to 3 , preferably, the linkage system 3: the special-shaped part 31 is a convex shaft, a relief portion 311 is formed by cutting away one side of the special-shaped part 31, and the special-shaped part 31 pushes the side wall 211 of the moving cutter group 2. The special-shaped part 31 is arranged outside the moving cutter support 21, and the special-shaped part 31 pushes a bent edge arranged perpendicular to the moving direction of the moving cutter group 2. The elastic member 33 adopts a helical spring. Adopting the structure of a convex shaft, the rotation control of the convex shaft is simple and convenient, and the convex shaft and the bent edge form a line contact, so that the moving cutter group 2 is uniformly stressed during the pushing process, avoiding the skew movement of the moving cutter group 2 and being able to stably fix the moving cutter group 2 at the required position during normal operation.

[0049] Specifically, both ends of the special-shaped part 31 are rotatably arranged on the base 1, and one end of the special-shaped part 31 extends out and is connected to the driving component 32. It can be understood that the special-shaped part 31 can also adopt a convex shaft or a cam with other structures.

[0050] Please refer to Figure 1 and Figure 2 , in the normal working state of the moving cutter group 2: the protrusion 312 of the special-shaped part 31 abuts against the bent edge, the moving cutter group 2 is stably fixed at the required position, and the elastic member 33 is in a stretched state.

[0051] Please refer to Figure 3In the event of a knife or paper jam, the drive assembly 32 is operated to rotate the shaped member 31, causing the protrusion 312 of the shaped member 31 to disengage from the bent edge. The clearance portion 311 faces the bent edge, leaving a gap between the clearance portion 311 and the bent edge. At this point, the elastic force of the elastic member 33 pulls the movable blade assembly 2 toward the clearance portion 311. This moves the movable blade assembly 2 away from the cutting position, releasing the cutting resistance of the movable blade assembly 2. This facilitates troubleshooting such as paper jams without forcibly opening the cover, thus preventing operator error.

[0052] Please refer to Figures 1 to 3 The drive assembly 32 comprises a rotatable handle mounted on the base 1. One end of the shaped member 31 extends into the handle and is fixedly connected thereto. The shaped member 31 rotates together with the handle. The handle has a cavity. A torsion spring is disposed between one end of the shaped member 31 and the handle. The torsion spring is sleeved over the shaped member 31 and housed within the cavity.

[0053] Please refer to Figure 1 and Figure 2 , also includes a system controller and an in-position switch 42. When the movable knife group 2 is in the knife-clamping state, the driving component 32 drives the special-shaped part 31 to rotate. After the driving component 32 runs into position, it triggers the in-position switch 42. After the in-position switch 42 is triggered, it sends information to the system controller. After receiving the information from the in-position switch 42, the system controller issues a control instruction.

[0054] Specifically, the system controller is connected to the drive system 23 of the movable knife group 2. The system controller controls the motor 233 to drive the worm 231 to rotate in the opposite direction. The worm 231 is disconnected from the transmission component, and the transmission component releases resistance.

[0055] Example 2:

[0056] Please refer to Figure 4 , which differs from Example 1 in that:

[0057] The drive assembly 32 includes a pusher 322 and a gear 321 meshing with the pusher 322. One end of the shaped member 31 extends into the gear 321 and is fixedly connected to the gear 321. The shaped member 31 rotates together with the gear 321. The pusher 322 can be a linearly movable rack or a rotatable driving wheel.

[0058] Example 3:

[0059] Please refer to Figure 5The third embodiment can use the driving component 32 in the first embodiment or the driving component 32 in the second embodiment. The difference between the third embodiment and the first and second embodiments is that:

[0060] The drive system 23 of the movable blade assembly 2 includes a worm 231, a worm wheel 232, a motor 233, a connector 235, and a return spring 234. The worm 231 is meshed with the worm wheel 232, and the worm wheel 232 is connected to the movable blade 22 via an eccentrically arranged connecting rod. The worm 231 is sleeved on the rotating shaft of the motor 233, and the worm 231 and the rotating shaft of the motor 233 are loosely matched. The connector 235 is sleeved on the rotating shaft of the motor 233, and the connector 235 and the rotating shaft of the motor 233 are tightly matched. The connector 235 cooperates with the worm 231, and the motor 233 can drive the worm 231 to rotate through the connector 235. A return spring 234 is provided between the main body of the motor 233 and the worm 231.

[0061] During normal operation, the worm 231 engages with the connector 235, and the return spring 234 exerts an axial elastic force on the worm 231, causing the end face of the worm 231 to rest against the connector 235. The motor 233 rotates in the positive direction, driving the worm 231 in the positive direction. The worm gear 232 then drives the movable blade 22 in a linear reciprocating motion, causing it to cut the recording paper.

[0062] When a knife jam occurs, the system controller controls the motor 233 to rotate in the reverse direction, disengaging the connector 235 from the worm 231 and no longer driving the worm 231. Under the resistance generated by the knife jam, the worm gear 232 drives the worm 231 in the reverse direction, compressing the return spring 234 and releasing the resistance. After the connector 235 rotates a certain angle, it reengages the worm 231 and drives it in the reverse direction, further releasing the resistance. The entire resistance release process is fully automatic, requiring no forced opening of the cover or operator verification of a knife jam. After the resistance is released, the operator can remove the recording paper or resolve the paper jam by other means. The system controller then controls the motor 233 to rotate in the forward direction again, resuming normal operation.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A printer that facilitates troubleshooting, characterized in that: The printer comprises: A base, wherein a fixed blade is provided on the base and is suitable for cooperating with the movable blade assembly to cut the recording paper; A movable knife assembly is provided on the base, and the movable knife assembly can move linearly back and forth on the base; The linkage system includes a special-shaped member, an elastic member that can be extended and retracted along the moving direction of the movable knife group, and a driving assembly that drives the special-shaped member to rotate, wherein the two ends of the elastic member are respectively connected to the movable knife group and the base; The special-shaped part has a protrusion, and when the special-shaped part rotates, the protrusion pushes the movable knife group to move; when the protrusion is disengaged from the movable knife group, the elastic part causes the movable knife group to move in the opposite direction of the push of the protrusion through elastic force.

2. The printer for convenient troubleshooting according to claim 1, characterized in that: The special-shaped part is a convex shaft, one side of the special-shaped part is cut away to form a clearance portion, and the special-shaped part pushes the side wall of the movable knife group.

3. The printer for convenient troubleshooting according to claim 2, characterized in that: The driving assembly includes a rotatable handle, the handle is arranged on the base, the special-shaped member is fixedly connected to the handle, and the special-shaped member rotates together with the handle.

4. The printer for convenient troubleshooting according to claim 2, characterized in that: The driving assembly includes a pushing member and a gear meshing with the pushing member, and the special-shaped member is fixedly connected to the gear.

5. The printer for convenient troubleshooting according to claim 4, characterized in that: The pushing member is a linearly movable rack, or the pushing member is a rotatable driving wheel.

6. The printer for convenient troubleshooting according to claim 1, characterized in that: The elastic member is a coil spring.

7. The printer for convenient troubleshooting according to claim 1, characterized in that: The movable knife group includes a movable knife bracket, the movable knife bracket is provided with a limiting portion protruding to the side, the base is provided with a limiting groove matched with the limiting portion, and the limiting groove is arranged along the moving direction of the movable knife group.

8. The printer for convenient troubleshooting according to claim 7, characterized in that: The movable knife assembly further includes a movable blade and a driving system provided on the movable knife bracket. The driving system is linked with the movable blade and drives the movable blade to perform linear reciprocating motion.

9. The printer for convenient troubleshooting according to claim 8, characterized in that: It also includes a system controller and an in-position switch. When the movable knife group is in the knife-clamping state, the driving component drives the special-shaped part to rotate. After the driving component runs into position, the in-position switch is triggered. After the in-position switch is triggered, information is sent to the system controller. After receiving the information from the in-position switch, the system controller issues a control instruction.

10. The printer for convenient troubleshooting according to claim 9, characterized in that: The system controller is connected to the drive system, which includes a transmission component that is linked to the movable blade, and a motor that drives the transmission component through a connecting part. The transmission component drives the movable blade to move linearly back and forth; the system controller controls the motor to rotate in the opposite direction, and the transmission component releases resistance.

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