CN211641453U

CN211641453U - Receipt printer

Info

Publication number: CN211641453U
Application number: CN201921873691.0U
Authority: CN
Inventors: 蒋有为
Original assignee: Shenzhen Ejietong Technology Co ltd
Current assignee: Shenzhen Ejietong Technology Co ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-10-09
Anticipated expiration: 2029-10-31

Abstract

The utility model relates to a receipt thermal printer technical field especially relates to a receipt printer. It includes: the printer comprises a shell provided with a receipt outlet, a printer body arranged in the shell, an induction plate and a sensor which are arranged on the shell, and a controller arranged in the shell. The utility model discloses a set up card paper detection mechanism, when taking place the card paper, the printer body stops to continue to print the receipt under the control of controller to can avoid appearing printing wrong receipt, and then can avoid the waste of paper, save the use of resource. Simultaneously, the printer body uses under the card paper condition, leads to structural wear easily, through setting up card paper detection mechanism, can in time discover the card paper problem to solve, and then prolonged the life of printer. In addition, the paper jam detection mechanism is simple in structure and easy to produce, can be assembled in an existing printer easily, and is easy to produce in a large scale.

Description

Receipt printer

Technical Field

The utility model relates to a receipt thermal printer technical field especially relates to a receipt printer.

Background

The problem of paper jam and paper jam often appears in the use of receipt printer. When paper jam and paper jam occur, the printer continues printing; the tickets printed after the paper jam and paper jam cannot be transported out of the outlet of the ticket printer, thereby causing paper waste.

There is therefore a need for a printer that can detect ticket jams and jam problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the receipt printer that proposes, it has the function of detecting the receipt card paper.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a ticket printer, comprising:

the printer comprises a shell provided with a receipt outlet, a printer body arranged in the shell, a paper jam detection mechanism arranged on the shell and a controller arranged in the shell;

the printer body is communicated with the receipt outlet;

the jam detection mechanism includes:

the card jam detection device comprises a sensing plate assembled on a shell, wherein a sensor used for sending a card jam signal to a controller after detecting a card jam of a receipt is arranged on the sensing plate; and the number of the first and second groups,

the blocking piece is hinged with the induction plate and is abutted against the receipt, and the blocking piece is used for triggering the sensor;

the controller is used for receiving a paper jam signal sent by the paper jam detecting mechanism and controlling the printer body to stop printing.

Preferably, a trigger is arranged on one side of the blocking piece close to the sensor and in contraposition relative to the sensor.

Preferably, the two ends of the blocking piece are provided with connecting shafts of columnar structures, and the sensing plate is provided with hinge grooves matched with the connecting shafts relative to the connecting shafts.

Preferably, the jam detecting mechanism further includes: the torsional spring is coaxially distributed with the connecting shaft and is sleeved on the connecting shaft; the induction plate is provided with a limiting block abutted against the torsion spring.

Preferably, the printer body includes:

a spool pivotally connected to the housing; and the number of the first and second groups,

the limiting shell is detachably assembled on the shell, and a containing groove which is matched with the winding drum and communicated with the receipt outlet is formed in the limiting shell relative to the winding drum.

Preferably, the limit shell includes: the first shell and the second shell are assembled in an aligned mode.

Preferably, the printer body further includes: the base is used for supporting the winding drum, and a supporting groove matched with the winding drum is formed in one side face, close to the winding drum, of the base.

Preferably, a transmission shaft which is connected to the base in a shaft rotating mode and is abutted to the winding drum is arranged on one side face, close to the winding drum, of the base, and the transmission shaft and the winding drum are coaxially distributed on the base, and an installation groove is formed in the base in a position opposite to the transmission shaft.

Adopt above-mentioned technique, the beneficial effects of the utility model are that:

the utility model discloses a set up card paper detection mechanism, when taking place the card paper, the printer body stops to continue to print the receipt under the control of controller to can avoid appearing printing wrong receipt, and then can avoid the waste of paper, save the use of resource. Simultaneously, the printer body uses under the card paper condition, leads to structural wear easily, through setting up card paper detection mechanism, can in time discover the card paper problem to solve, and then prolonged the life of printer. In addition, the paper jam detection mechanism is simple in structure and easy to produce, can be assembled in an existing printer easily, and is easy to produce in a large scale.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the exploded structure of the present invention;

fig. 3 is a schematic structural diagram of the jam detecting mechanism of the present invention;

fig. 4 is an exploded schematic view of the jam detecting mechanism of the present invention;

FIG. 5 is an enlarged view of area B of FIG. 4;

FIG. 6 is an enlarged view of area A of FIG. 3;

FIG. 7 is a schematic cross-sectional view taken along the line X-X in FIG. 1;

fig. 8 is a schematic structural view of the base of the present invention;

reference numerals:

10. a housing; 20. a printer body; 21. a reel; 22. a limiting shell; 221. a first housing; 222. a second housing; 23. a base; 231. a drive shaft; 30. a jam detecting mechanism; 31. an induction plate; 311. a sensor; 312. a limiting block; 32. a baffle plate; 321. a trigger; 322. a connecting shaft; 33. a torsion spring; a. a receipt outlet; b. a hinge slot; c. a containing groove; d. a support groove; e. and (4) mounting the groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-8, the present invention relates to a receipt printer, comprising: a housing 10 provided with a receipt outlet a, a printer body 20 provided in the housing 10, a jam detecting mechanism 30 provided on the housing 10, and a controller provided in the housing 10. The printer body 20 communicates with the receipt outlet a. The jam detection mechanism 30 includes: a sensing plate 31 (which may be directly attached to the housing 10) is mounted on the housing 10, and a sensor 311 for detecting a jam of the receipt and transmitting a jam signal to the controller is provided on the sensing plate 31. And a shutter 32 hinged to the sensing plate 31 and abutting against the tickets, the shutter 32 being used to trigger the sensor 311. The controller is configured to receive a jam signal sent by the jam detecting mechanism 30 and to control the printer body 20 to stop printing. Based on the above structure, when a paper jam (or paper jam) occurs in the printing process of the printer body 20, the receipt can be bent to some extent, so as to push the blocking sheet 32; since the blocking piece 32 is hinged on the sensing plate 31, the position of the blocking piece 32 relative to the sensing plate 31 changes in the process of being pushed, and the blocking piece 32 is known to contact the sensor 311 on the sensing plate 31; a paper jam signal is generated by the sensor 311 and transmitted to the controller, and the controller controls the printer body 20 to stop printing; finally, the printer body 20 can be manually cleaned to eliminate the paper jam (or paper jam) and then printing can be continued. Based on this, through setting up card paper detection mechanism 30, when the emergence card paper, printer body 20 stops to continue to print the receipt under the control of controller to can avoid appearing printing wrong receipt, and then can avoid the waste of paper, save the use of resource. Simultaneously, printer body 20 uses under the card paper condition, leads to the structure wearing and tearing easily, through setting up card paper detection mechanism 30, can in time discover the card paper problem to solve, and then prolonged the life of printer. In addition, the jam detecting mechanism 30 has a simple structure, is easy to produce, can be easily assembled into an existing printer, and is easy to mass-produce.

In order to make the detection result of the jam detecting mechanism 30 more accurate, the trigger 321 is provided on the side of the blocking piece 32 close to the sensor 311 and aligned with the sensor 311. Based on the above structure, during the rotation of the barrier 32, the trigger 321 can preferentially contact the sensor 311 relative to the barrier 32 to generate a paper jam signal, and cause the printer body 20 to stop printing. Therefore, the jam signal can be generated when the degree of curvature of the slip is small, thereby improving the detection accuracy of the jam detecting mechanism 30.

In order to facilitate the assembly of the blocking piece 32 and the sensing plate 31, the two ends of the blocking piece 32 of this embodiment are provided with connecting shafts 322 having a columnar structure, and the sensing plate 31 is provided with hinge grooves b matched with the connecting shafts 322 opposite to the connecting shafts 322.

In order to automatically reset the shutter, the jam detecting mechanism 30 of the present embodiment further includes: a torsion spring 33 coaxially distributed with the connecting shaft 322 and sleeved on the connecting shaft 322; the sensing plate 31 is provided with a stopper 312 abutting against the torsion spring 33. Based on the structure, when the small ticket bends to drive the pushing baffle to rotate, the torsion spring 33 is driven to compress; when the paper jam problem of the printer body 20 is solved, the torsion spring 33 exerts an acting force on the shutter 32 and pushes the shutter 32 to return to the original position.

For guaranteeing the smoothness of the receipt on the printer body 20, the printer body 20 of this embodiment further includes: a spool 21 pivotally connected to the housing 10. And a limiting shell 22 detachably assembled on the shell 10, wherein the limiting shell 22 is provided with a containing groove c which is matched with the winding drum 21 and is communicated with the receipt outlet a relative to the winding drum 21. Based on the structure, the receipt is wound on the winding drum 21, the receipt can be limited in a narrow range by using the winding drum 21 and the limiting shell 22 (for example, the thickness of a receipt is the thickness of a receipt, so that the receipt cannot be bent or the probability of bending or folding of the receipt is reduced), and therefore, when the receipt located outside the limiting shell 22 is bent, the smoothness of the receipt on the winding drum 21 inside the limiting shell 22 cannot be influenced, and the paper jam condition of the printer can be reduced.

In order to facilitate the assembly of the winding drum 21 and the limiting shell 22, the limiting shell 22 of the present embodiment preferably includes: the first casing 221 and the second casing 222 are assembled in alignment.

To ensure the stability of the winding drum 21 during the driving process, the printer body 20 of the present embodiment preferably further includes: a base 23 for supporting the winding drum 21, wherein a supporting groove d matched with the winding drum 21 is formed on one side surface of the base 23 close to the winding drum 21.

In order to prevent the tickets from being worn, a transmission shaft 231 is disposed on the base 23 and on a side surface close to the winding drum 21, and is pivotally connected to the base 23 and abutted against the winding drum 21, and the transmission shaft 231 and the winding drum 21 are coaxially distributed on the base 23 and provided with mounting grooves e corresponding to the transmission shaft 231. Based on the above structure, by providing the transmission shaft 231 on the base 23, the winding drum 21 and the transmission shaft 231 rotate relatively in the rotating process, so that the abrasion of the tickets wound on the winding drum 21 due to the direct friction between the winding drum 21 and the base 23 can be avoided.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A ticket printer, comprising:

the printer comprises a shell (10) provided with a receipt outlet (a), a printer body (20) arranged in the shell (10), a paper jam detecting mechanism (30) arranged on the shell (10) and a controller arranged in the shell (10);

the printer body (20) is communicated with the receipt outlet (a);

the jam detection mechanism (30) includes:

a sensing plate (31) assembled on the shell (10), wherein a sensor (311) used for sending a jam signal to the controller after detecting the jam of the receipt is arranged on the sensing plate (31); and the number of the first and second groups,

a blocking sheet (32) hinged with the induction plate (31) and abutted with the receipt, wherein the blocking sheet (32) is used for triggering the sensor (311);

the controller is used for receiving a paper jam signal sent by the paper jam detection mechanism (30) and controlling the printer body (20) to stop printing.

2. The receipt printer according to claim 1, wherein the shutter (32) is provided with a trigger (321) on a side thereof adjacent to the sensor (311) and aligned with the sensor (311).

3. The receipt printer according to claim 2, wherein the two ends of the blocking sheet (32) are provided with connecting shafts (322) with columnar structures, and the sensing plate (31) is provided with hinge grooves (b) which are matched with the connecting shafts (322) and are opposite to the connecting shafts (322).

4. The receipt printer according to claim 3, wherein the jam detection mechanism (30) further comprises: a torsion spring (33) which is coaxially distributed with the connecting shaft (322) and is sleeved on the connecting shaft (322); and the induction plate (31) is provided with a limiting block (312) abutted against the torsion spring (33).

5. The receipt printer according to claim 4, wherein the printer body (20) comprises:

a drum (21) pivotally connected to the housing (10); and the number of the first and second groups,

the limiting shell (22) is detachably assembled on the shell (10), and a containing groove (c) which is matched with the winding drum (21) and communicated with the receipt outlet (a) is formed in the limiting shell (22) relative to the winding drum (21).

6. The receipt printer according to claim 5, wherein the limit housing (22) comprises: a first shell (221) and a second shell (222) which are assembled in a contraposition mode.

7. The receipt printer according to claim 6, wherein the printer body (20) further comprises: the base (23) is used for supporting the winding drum (21), and a supporting groove (d) matched with the winding drum (21) is formed in one side face, close to the winding drum (21), of the base (23).

8. The receipt printer according to claim 7, wherein a transmission shaft (231) is arranged on the base (23) and on a side surface close to the winding drum (21), the transmission shaft (231) is pivotally connected to the base (23) and abuts against the winding drum (21), and the transmission shaft (231) and the winding drum (21) are coaxially distributed on the base (23) and are provided with mounting grooves (e) which are opposite to the transmission shaft (231).