CN114407542B

CN114407542B - Roll paper printer

Info

Publication number: CN114407542B
Application number: CN202210248706.4A
Authority: CN
Inventors: 郑财权
Original assignee: Xiamen Hanyin Electronic Technology Co Ltd
Current assignee: Xiamen Hanyin Co ltd
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2023-11-21
Anticipated expiration: 2040-04-15
Also published as: CN111332036A; CN114407542A

Abstract

The application discloses a roll paper printer, which comprises a bracket, a consumable reel, a driving mechanism, a printing mechanism and a braking mechanism, wherein the consumable reel is arranged on the bracket, the consumable reel is used for bearing a roll, the driving mechanism is used for driving and outputting printing paper from the roll, the printing mechanism can execute printing action on the printing paper, the braking mechanism is used for braking the consumable reel so as to stop the rotation of the consumable reel, the braking mechanism comprises a buffering module, a braking module and a braking disc, the buffering module is provided with a second swinging rod, the second swinging rod can rotate on the bracket, the braking module comprises a braking block, the braking block is rotatably arranged on the second swinging rod and is provided with a braking piece, the braking disc and the consumable reel synchronously rotate, the braking piece is driven to be far away from or to be abutted against the braking disc in the rotation process of following the second swinging rod, and a third elastic piece is further connected between the braking block and the second swinging rod. The paper roll printer can effectively reduce running resistance, avoid consumable overshoot and prolong the maintenance period of the paper roll printer.

Description

Roll paper printer

The application is a divisional application of patent application No. CN202010294717.7 (the application date of the original application is 2020, 4 and 15 days, and the application name is a roll paper printer).

Technical Field

The application relates to the technical field of printing equipment, in particular to a roll paper printer.

Background

At present, self-service printing is increasingly widely applied in places such as office buildings, hospitals and schools, and a roll paper printer is mainly adopted as a self-service printer in the market at present. The capacity of the existing self-service roll paper printer is smaller, and the roll paper backflushing phenomenon when the printer stops printing can be well avoided under the condition that the roll paper is smaller, so that the working reliability of the roll paper printer is ensured. However, the smaller paper roll causes the existing roll paper printer to need to replace the paper roll frequently, thus raising the maintenance cost of the roll paper printer, and making the existing self-service roll paper printer not suitable for public places with larger printing demands.

Disclosure of Invention

The application aims to provide a roll paper printer which can well avoid the phenomenon of paper roll overshoot, so that more consumables can be loaded at one time, and the maintenance cost of the roll paper printer is reduced.

To achieve the purpose, the application adopts the following technical scheme:

a roll paper printer, comprising:

a bracket;

the consumable reel is configured on the bracket and is used for bearing a paper roll;

a printing mechanism disposed on the holder, the printing mechanism being capable of performing a printing operation on the printing paper; and

a brake mechanism comprising:

the buffer module is arranged on the bracket and is provided with a second swing rod, and the second swing rod can rotate on the bracket;

the brake module comprises a brake block, wherein the brake block is provided with a brake block; and

the brake disc is arranged on the consumable reel, the brake disc and the consumable reel synchronously rotate, and the brake block is configured to drive the brake block to be far away from or propped against the brake disc in the rotation process of the second swing rod; and

the third elastic piece is connected between the brake block and the second swing rod; the brake block is rotatably arranged on the second swing rod.

Optionally, the brake pad rotates under the pushing of the brake disc by overcoming the force of the third elastic member.

Optionally, the buffer module further includes:

the printing paper printing device comprises a bracket, a first swing rod, a second swing rod and a printing paper feeding mechanism, wherein one end of the first swing rod is rotatably connected to the bracket, the first swing rod rotates under the pushing of the printing paper, and the second swing rod rotates under the driving of the first swing rod.

Optionally, the buffer module further includes a first elastic element, where the first elastic element is configured between the first swing rod and the bracket and is used for resetting the first swing rod.

Optionally, the first swing rod resets under the gravity of the first swing rod.

Optionally, the brake pad has a cambered surface that mates with the brake disc.

Optionally, the buffer module further includes a second elastic element, the second elastic element is configured between the second swing rod and the bracket, and the second elastic element is used for resetting the second swing rod.

Optionally, the buffer module further comprises a guide roller, the guide roller is sleeved on the other end of the first swing rod, and the guide roller is used for guiding the printing paper.

Optionally, a first top block is arranged on the first swing rod, and a second top block matched with the first top block is arranged on the second swing rod;

when the first top block contacts the second top block, the first swing rod can drive the second swing rod to rotate.

Optionally, a bearing is sleeved at one end of the consumable reel, and the bearing is matched with the side wall of the bracket.

Optionally, the printing mechanism includes a printing module, the printing module includes:

the detecting component is used for detecting the position of the printing paper;

the rubber roller assembly is positioned at the downstream of the detection assembly in the transport direction of the printing paper and is used for conveying the printing paper;

and the printing head is arranged corresponding to the rubber roller assembly in the transportation direction of the printing paper and is used for printing.

The beneficial effects are that:

according to the paper roll printer, as the damping mechanism is arranged and can brake the consumable reel, the consumable overshoot phenomenon during stopping printing is avoided, and the paper roll quality borne by the consumable reel is increased, so that the consumable loading capacity of the paper roll printer is enlarged, and the maintenance period of the paper roll printer is prolonged. In addition, the printing mechanism is located above or below the consumable reel, the position can be flexibly adjusted relatively, the front-back size thickness of the paper roll printer is reduced, and the aesthetic degree of the appearance of the paper roll printer and the flexibility of structural design are improved.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Drawings

Fig. 1 is a schematic configuration diagram of a roll paper printer according to a first embodiment of the present application.

Fig. 2 is a schematic partial structure of a brake disc locked by a brake module of a roll paper printer according to a first embodiment of the present application.

Fig. 3 is a schematic partial structure of a brake module detachment brake disc of a roll paper printer according to a first embodiment of the present application.

Fig. 4 is a schematic structural view of a printing mechanism of a roll paper printer according to the first embodiment of the present application.

Fig. 5 is a schematic diagram of a matching structure of a printing module and a jack-up module of a roll paper printer according to a first embodiment of the present application.

Fig. 6 is a partial schematic diagram of a roll paper printer according to the second embodiment of the present application.

Fig. 7 is a partial schematic configuration of a roll paper printer according to a third embodiment of the present application.

Fig. 8 is a partial schematic configuration of a roll paper printer according to a fourth embodiment of the present application.

Reference numerals:

1. a consumable reel;

2. a printing mechanism; 21. a printing module; 211. a detection component; 212. a rubber roller assembly; 213. a print head; 214. a carbon ribbon supply shaft; 215. a carbon ribbon recovery shaft; 22. jacking up the module; 221. jacking up the cam;

3. a braking mechanism; 31. a buffer module; 311. a first swing rod; 3111. a first top block; 3112. a baffle; 312. a guide roller; 313. the second swing rod; 3131. a second top block; 314. a first elastic member; 315. a second elastic member; 32. a brake module; 321. a brake block; 322. a brake pad; 323. a third elastic member; 33. a brake disc; 34. a grating assembly; 35. braking the motor; 351. a brake cam; 36. an electromagnetic brake; 37. a drive motor; 38. a distance sensor;

4. a bracket;

5. a cutter mechanism;

100. paper roll; 200. printing paper.

Detailed Description

In order to make the technical problems solved, the technical scheme adopted and the technical effects achieved by the application more clear, the technical scheme of the application is further described below by a specific embodiment in combination with the attached drawings.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly, for distinguishing between the descriptive features, and not sequentially, and not lightly. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

The specific structure of the roll paper printer according to the embodiment of the present application is described below with reference to fig. 1 to 5.

As shown in fig. 1, the roll paper printer according to the embodiment of the present application includes a consumable reel 1, a driving mechanism, a printing mechanism 2, and a braking mechanism 3, wherein the consumable reel 1 is used for carrying a roll of paper 100, the driving mechanism is used for driving and outputting printing paper 200 from the roll of paper 100, the braking mechanism 3 is used for braking the consumable reel 1 to stop rotation of the consumable reel 1, and the printing mechanism 2 is located above or below the consumable reel 1.

It will be appreciated that the braking mechanism 3 added to the roll paper printer of the present embodiment is capable of braking the entire consumable supply spool 1 when the roll paper printer stops printing. That is, even if the paper roll 100 having a large mass is loaded on the consumable roll 1, the paper roll 100 does not overshoot due to its own inertia after the printing is finished due to the presence of the brake mechanism 3, thereby ensuring the reliability of the entire roll paper printer.

In addition, since the printing mechanism 2 is located above or below the consumable reel 1 and both are formed in separate structures, not only the front-rear dimensional thickness of the roll paper printer can be reduced, but also the aesthetic degree of the appearance and the flexibility of the structural design of the roll paper printer can be improved.

The roll paper printer of this embodiment has avoided consumable material overshoot phenomenon when stopping printing owing to set up buffering and can brake the brake mechanism 3 of consumable material spool 1, has reduced the scroll 100 because the intensity of overshooting that self inertia takes place, has increased the scroll 100 quality that consumable material spool 1 can bear to the consumable material loading of roll paper printer has been increased, the maintenance cycle of scroll 100 printer has been prolonged. In addition, the printing mechanism 2 is positioned above or below the consumable reel 1, so that the front-rear dimension thickness of the paper roll printer is reduced, and the aesthetic degree of the appearance and the flexibility of structural design of the paper roll printer are improved.

Preferably, the roll paper printer of the present embodiment can carry a roll paper 100 having an outer diameter of 300mm, and can print 2000 sheets of A4 paper. Compared with the prior art that the paper roll 100 needs to be replenished for printing the printed sheets, the roll paper printer of the embodiment greatly prolongs the maintenance period and is convenient for users to use.

In some embodiments, as shown in fig. 1, the roll paper printer further comprises a bracket 4, and one end of the consumable reel 1 is sleeved with a bearing, and the bearing is matched on the side wall of the bracket 4. It can be appreciated that the one end of the consumable spool 1 is provided with a bearing, the consumable spool 1 is rotatably matched on the side wall of the support 4 through the bearing, the bearing can reduce friction between the consumable spool 1 and the support 4, so that resistance received when the consumable spool 1 rotates in the printing process is reduced, the consumable spool 1 can bear the paper roll 100 with larger mass under the condition that the structural power for driving the consumable spool 1 is unchanged, the consumable loading capacity of the paper roll printer is improved, and the maintenance period of the paper roll printer is further prolonged.

In some embodiments, as shown in fig. 1-3, the brake mechanism 3 comprises a buffer module 31, a brake module 32 and a brake disc 33, the buffer module 31 is rotatably arranged on the support 4, the brake module 32 is connected with the buffer module 31, the brake disc 33 is arranged on the consumable reel 1, and the brake disc 33 can be matched with the brake module 32. Wherein the brake module 32 is configured to be driven off the brake disc 33 when the printing paper 200 pulls the buffer module 31 to rotate.

It will be appreciated that in the actual printing process, the roll paper printer just starts to output the printing paper 200, and the printing paper 200 can drive the buffer module 31 to move so as to drive the brake module 32 to separate from the brake disc 33, so that the brake module 32 is not locked on the brake disc 33 any more, and the consumable reel 1 is completely released, so that the printing mechanism 2 is ensured to be capable of printing normally. Due to the good buffering effect of the process and the overshoot phenomenon of the paper roll 100, the motor impact of consumable materials on a driving mechanism in the start-stop stage is well reduced, and the consumable material scroll 1 and the bracket 4 are matched through the rolling bearing in normal operation, so that the running resistance of the paper roll 100 is greatly reduced, and the power requirement on the driving mechanism is reduced. The roll paper printer of this example embodiment can load a roll paper 100 of a larger mass to extend the maintenance period of the roll paper printer.

In some alternative embodiments, as shown in fig. 2-3, the buffer module 31 includes a first swing link 311, a guide roller 312, and a second swing link 313, one end of the first swing link 311 is rotatably connected to an inner side wall of the bracket 4, the guide roller 312 is sleeved on the other end of the first swing link 311, the guide roller 312 is used for guiding the printing paper 200 output when the consumable reel 1 rotates, one end of the second swing link 313 is rotatably connected to an inner side wall of the bracket 4, the other end can be driven by the first swing link 311, and the brake module 32 is arranged on the second swing link 313.

It will be appreciated that, during actual use, the driving mechanism of the roll paper printer outputs the printing paper 200 at the beginning of printing, and the printing paper 200 will drive the guide roller 312 to move upwards during the transmission process so that the first swing link 311 rotates clockwise, and thus the second swing link 313 rotates clockwise, that is, during the process that the printing paper 200 drives the guide roller 312 to move upwards, the second swing link 313 can rotate towards a direction away from the consumable reel 1. Since the brake module 32 is disposed on the second swing link 313, when the second swing link 313 rotates in a direction away from the consumable reel 1, the brake module 32 can be gradually away from the brake disc 33, and when the brake module 32 is separated from the brake disc 33, the consumable reel 1 is released, and the roll paper printer can continuously output the printing paper 200. When printing is finished, the driving mechanism of the roll paper printer stops outputting the printing paper 200, at this time, the paper roll 100 continues to rotate under the action of self inertia, so that the printing paper 200 is released continuously, that is, the printing paper 200 is not in a tensioned state, at this time, the guide roller 312 moves downwards under the action of self gravity, so that the first swing link 311 rotates anticlockwise, so that the second swing link 313 rotates anticlockwise, that is, during the downward movement of the guide roller 312, the second swing link 313 can rotate towards a direction approaching to the consumable reel 1. Since the brake module 32 is disposed on the second swing link 313, when the second swing link 313 rotates in a direction approaching the consumable reel 1, the brake module 32 can gradually approach the brake disc 33, and when the brake module 32 is stopped against the brake disc 33, the consumable reel 1 is locked. At this time, although the quality of the roll paper 100 on the consumable roll shaft 1 is large, the overshoot phenomenon of the consumable roll shaft 1 is suppressed due to the braking action of the braking module 32, and the operational reliability of the roll paper printer is ensured.

Therefore, the transmission structure of the guide roller 312, the first swing rod 311 and the second swing rod 313 is adopted, so that when the driving mechanism drives the printing paper 200 to output, the brake module 32 is far away from the brake disc 33, and when the driving mechanism stops moving, the brake module 32 is near the brake disc 33, and the overshoot phenomenon of the consumable reel 1 is restrained.

In some alternative embodiments, as shown in fig. 2, a first top block 3111 is provided on the first swing link 311, and a second top block 3131 that mates with the first top block 3111 is provided on the second swing link 313. It will be appreciated that the cooperation of the first top block 3111 and the second top block 3131 can ensure the pushing action of the first swing link 311 on the second swing link 313, so as to ensure that the brake module 32 can be smoothly separated from or attached to the brake disc 33.

In some alternative embodiments, as shown in fig. 2-3, the buffer module 31 further includes a first elastic member 314 and a second elastic member 315, one end of the first elastic member 314 is connected to the bracket 4, the other end is connected to the first swing link 311, the first elastic member 314 is used to reset the first swing link 311 when the roll paper printer stops printing, one end of the second elastic member 315 is connected to the bracket 4, the other end is connected to the second swing link 313, and the second elastic member 315 is used to reset the second swing link 313 when the roll paper printer stops printing.

It will be appreciated that, according to the foregoing, when the printing is stopped, the guide roller 312 is restored by gravity, but since the printing paper 200 is fitted on the guide roller 312, the phenomenon that the brake module 32 cannot lock the brake disc 33 due to the fact that the guide roller 312 cannot be completely restored may occur, and in this embodiment, the buffer module 31 further includes the first elastic member 314 and the second elastic member 315, so that when the printing is stopped, the first swing link 311 can be restored under the action of the first elastic member 314, and when the first swing link 311 and the second swing link 313 are disengaged, the second swing link 313 can also be restored under the action of the second elastic member 315. Thereby, it is ensured that after the printing is stopped, both the first swing link 311 and the second swing link 313 can be smoothly reset, so that it is ensured that the brake module 32 is stopped on the brake disc 33 to brake the consumable reel 1 after the printing is stopped.

In some alternative embodiments, as shown in fig. 2-3, the brake module 32 includes a brake block 321, a brake block 322, and a third elastic member 323, where the brake block 321 is rotatably disposed on the second swing link 313, the brake block 322 is fitted on the brake block 321, the brake block 322 has a cambered surface matched with the circumferential surface of the brake disc 33, and one end of the third elastic member 323 is connected to the brake block 321, and the other end of the third elastic member 323 is stopped on the second swing link 313.

The third elastic member 323 is used to reset the brake pad 321 when the roll paper printer stops printing.

It will be appreciated that the rotatable movement of the brake pad 321 relative to the second swing link 313 ensures that the brake pad 322 is able to tightly engage the brake disc 33, ensuring the locking of the brake pad 322 to the brake disc 33 and thus ensuring the braking reliability of the brake module 32. And the brake pad 322 is used for having an arc surface matched with the peripheral surface of the brake disc 33, so that the locking effect of the brake pad 322 on the brake disc 33 when the brake pad 322 is stopped on the brake disc 33 can be further improved, and the braking reliability of the brake module 32 is further improved.

In addition, the existence of the third elastic member 323 can ensure that the brake pad 322 has larger acting force on the brake disc 33 when the brake pad 322 is attached to the brake disc 33 on one hand, thereby ensuring the braking action of the brake module 32, and can ensure that the brake pad 321 can be rapidly separated from the brake disc 33 when the second swing rod 313 moves in the direction away from the consumable reel 1 on the other hand, thereby ensuring the normal printing work of the paper roll printer.

It should be noted that, in other embodiments of the present application, a portion of the second swing link 313 may be directly formed as the brake module 32, and the second swing link 313 may function as the brake disc 33.

It should be noted that, in other embodiments of the present application, the braking mechanism 3 may include a linear driving mechanism and a braking module 32, and the linear driving mechanism may directly drive the braking module 32 to stop or disengage from the braking disc 33 during the actual printing process. That is, in the present embodiment, the structure of the braking mechanism 3 may be various, and is not limited to the structure that the buffer module 31 cooperates with the braking module 32.

For example, in some embodiments, as shown in fig. 6, the first swing link 311 and the second swing link 313 are not in driving engagement by the first top block 3111 and the second top block 3131. Instead, the bracket 4 is provided with the grating assembly 34, the first swing rod 311 is provided with the baffle 3112 matched with the grating assembly 34, and the grating assembly 34 can detect the position of the first swing rod 311 through the baffle 3112. The second swing rod 313 is driven by a brake motor 35, a brake cam 351 is arranged on an output shaft of the brake motor 35, and when the brake motor 35 drives the brake cam 351 to rotate, the brake cam 351 can drive the second swing rod 313 to move towards a direction away from the consumable reel 1 so as to realize that the brake module 32 releases the consumable reel 1. When the roll paper printer stops printing, the second elastic member 315 drives the second swing rod 313 to reset, so that the braking module 32 stops on the consumable reel 1 again to brake the consumable reel 1. In the actual working process, the grating assembly 34 detects the position of the first swing link 311 and feeds a signal back to the control system of the paper roll printer, and the control system controls the brake motor 35 to rotate, so that the brake cam 351 drives the second swing link 313 to rotate towards a direction away from the consumable reel 1, and the brake module 32 is further separated from the brake disc 33.

As another example, as shown in fig. 7, in some embodiments, the braking mechanism 3 includes a grating assembly 34 and an electromagnetic brake 36 disposed on the consumable spool 1. The first swing link 311 is provided with a baffle 3112 matched with the grating assembly 34, and the grating assembly 34 can detect the position of the first swing link 311 through the baffle 3112. During actual operation, the grating assembly 34 is able to detect the position of the first swing link 311 and feed back a signal to the control system of the roll paper printer, which controls the electromagnetic brake 36 to brake or unwind the consumable spool 1.

For another example, in some embodiments, the braking mechanism 3 includes a drive motor 37 provided on the consumable spool 1 and a distance sensor 38 provided on the outside of the circumference of the paper roll 100, the distance sensor 38 being capable of detecting the position of the outermost turn of the paper roll 100 in real time and feeding back the position of the outermost turn of the paper roll 100 to the control system of the roll paper printer, the control system being capable of calculating the rotational speed of the consumable spool 1 in conjunction with the printing speed of the printer. So that the consumable reel 1 releases the printing paper 200 at the synchronous printing speed. When the roll paper printer stops printing, the control system sends a signal to the drive motor 37 to rotate in the reverse direction, and the reverse rotation of the drive motor 37 can offset the rotation of the paper roll 100 due to the inertia of the paper roll. Thereby, the purpose of braking the consumable reel 1 can be achieved as well.

In some embodiments, as shown in fig. 1 and 4, the printing mechanisms 2 are plural, the plural printing mechanisms 2 are sequentially arranged along the conveying direction of the printing paper 200, at least part of the printing mechanisms 2 have a printing position and a dormant position, and include a printing module 21 and a jacking module 22, the jacking module 22 is matched with the printing module 21, and the jacking module 22 is used for jacking the printing module 21 to move from the printing position to the dormant position.

It can be understood that, because the printing mechanism 2 is a plurality of, and the printing mechanism 2 includes the printing module 21 and the jack-up module 22, therefore, the number of the printing mechanisms 2 in the printing state can be controlled according to the printing requirement in the actual printing process, so that the roll paper printer of the embodiment can realize single-sided single-color printing, single-sided multicolor printing, double-sided single-color printing, double-sided multicolor printing and various printing functions, the application range of the roll paper printer is expanded, and the user satisfaction of the roll paper printer is improved.

In some embodiments, as shown in fig. 1 and 4, the printing module 21 includes a detecting component 211, a rubber roller component 212, a printing head 213, a carbon ribbon supply shaft 214, and a carbon ribbon recovery shaft 215, the detecting component 211 is used for detecting a position of the printing paper 200, the rubber roller component 212 is located downstream of the detecting component 211 in a transport direction of the printing paper 200, the rubber roller component 212 is used for transporting the printing paper 200, the printing head 213 is disposed corresponding to the rubber roller component 212 in the transport direction of the printing paper 200, the printing head 213 is used for printing, the carbon ribbon supply shaft 214 is located on the printing head 213, the carbon ribbon supply is used for transporting the carbon ribbon toward the printing paper 200, and the carbon ribbon recovery shaft 215 is located downstream of the carbon ribbon supply shaft 214 in the transport direction of the printing paper 200.

It will be appreciated that the detection assembly 211 is capable of detecting the presence of the printing sheet 200 within the print path, and that when the detection assembly 211 detects the printing sheet 200 and determines that the printing sheet 200 has reached a certain position, the ink on the carbon tape is capable of transferring corresponding text and bar code information to the printing sheet 200 under the heat and pressure of the print head 213. The used carbon ribbon is recovered and wound around the carbon ribbon recovery shaft 215. Thus, one printing process can be completed.

It should be noted that any one of the photoelectric sensor, the position sensor, and the contact sensor in the prior art may be used for the detecting element 211, and the specific type of the detecting element 211 is not limited herein. Meanwhile, the model number and the printing accuracy of the print head 213 may be selected according to actual needs, and the parameters of the print head 213 are not specifically limited herein.

In addition, in the present embodiment, the print head 213 may be other print head 213 structures such as a thermal print head 213, a needle print head, an inkjet print head, etc., and when the print head is a thermal print head, the print module 21 does not include the carbon tape supply shaft 214 and the carbon tape recovery shaft 215.

In some alternative embodiments, the jack module 22 includes a jack cam 221, the jack cam 221 for driving the print head 213 between the print position and the sleep position. It will be appreciated that when a printing mechanism 2 of the roll paper printer needs to print, the detecting component 211 monitors that the printing paper 200 exists in the channel, the print head 213 moves towards the rubber roller assembly 212 under the action of the jack-up cam 221, and the print head 213 presses onto the rubber roller assembly 212, so that the print head 213 can be heated to complete printing.

In some embodiments, as shown in fig. 1, the stand 4 is provided with a paper outlet, and the roll paper printer further includes a cutter mechanism 5, where the cutter mechanism 5 is provided at the paper outlet to cut the printed printing paper 200. It will be appreciated that the presence of the cutter mechanism 5 can be conveniently used to take out the printing paper 200, and the cutter mechanism 5 can cut the printing paper 200 according to the actual required size, thereby improving the user satisfaction of the roll paper printer.

Embodiment one:

a roll paper printer according to an embodiment of the present application is described below with reference to fig. 1 to 5.

As shown in fig. 1, the roll paper printer of this embodiment includes a holder 4, a consumable reel 1, a driving mechanism (not shown in the drawings), a braking mechanism 3, a printing mechanism 2 and a cutter mechanism 5, one end of the consumable reel 1 is sleeved with a bearing, the consumable reel 1 is rotatably fitted on a side wall of the holder 4 through the bearing, the consumable reel 1 is used for carrying a roll 100, a brake disc 33 is provided on the consumable reel 1, the driving mechanism is provided in the holder 4, the driving mechanism is used for outputting a print paper 200, the braking mechanism 3 is provided inside the holder 4, the braking mechanism 3 is used for braking the brake disc 33 to stop the rotation of the consumable reel 1, the printing mechanism 2 is two, the printing mechanism 2 is located on the holder 4, and the printing mechanism 2 is located above the consumable reel 1. The cutter mechanism 5 is provided at the paper outlet to cut off the printed printing paper 200.

As shown in fig. 1-3, the braking mechanism 3 includes a buffer module 31 and a braking module 32, the buffer module 31 is disposed in the bracket 4, the buffer module 31 can be matched with the paper roll 100, the braking module 32 is connected with the buffer module 31, and the braking module 32 can be stopped on the braking disc 33 under the driving of the buffer module 31. The buffer module 31 includes a first swing link 311, a guide roller 312, a second swing link 313, a first elastic member 314 and a second elastic member 315, one end of the first swing link 311 is rotatably connected to the inner side wall of the bracket 4, the guide roller 312 is sleeved on the other end of the first swing link 311, the guide roller 312 is used for guiding the printing paper 200 output when the consumable reel 1 rotates, one end of the second swing link 313 is rotatably connected to the inner side wall of the bracket 4, the other end of the second swing link 313 can be matched with the first swing link 311, and the brake module 32 is arranged on the second swing link 313. A first top block 3111 is provided on one swing link, and a second top block 3131 is provided on the second swing link 313 to be matched with the first top block 3111. One end of the first elastic member 314 is connected to the bracket 4, the other end is connected to the first swing rod 311, the first elastic member 314 is used for resetting the first swing rod 311 when the paper roll printer stops printing, one end of the second elastic member 315 is connected to the bracket 4, the other end is connected to the second swing rod 313, and the second elastic member 315 is used for resetting the second swing rod 313 when the paper roll printer stops printing. The brake module 32 comprises a brake block 321, a brake block 322 and a third elastic piece 323, wherein the brake block 321 is rotatably arranged on the second swing rod 313, the brake block 322 is matched with the brake block 321, the brake block 322 can be stopped against the brake disc 33 to brake the brake disc 33, one end of the third elastic piece 323 is connected to the brake block 321, and the other end of the third elastic piece 323 is stopped against the second swing rod 313.

As shown in fig. 1 and 4, the number of printing mechanisms 2 is two, the two printing mechanisms 2 are sequentially arranged along the conveying direction of the printing paper 200, one printing mechanism 2 has a printing position and a dormant position, and comprises a printing module 21 and a jacking module 22, the jacking module 22 is matched with the printing module 21, and the jacking module 22 is used for jacking the printing module 21 to enable the printing module 21 to move from the printing position to the dormant position. The other printing mechanism 2 includes only the printing module 21. The printing module 21 includes a detecting component 211, a rubber roller component 212, a printing head 213, a carbon tape supply shaft 214 and a carbon tape recovery shaft 215, the detecting component 211 is used for detecting the position of the printing paper 200, the rubber roller component 212 is located at the downstream of the detecting component 211 in the transportation direction of the printing paper 200, the rubber roller component 212 is used for conveying the printing paper 200, the printing head 213 is arranged corresponding to the rubber roller component 212 in the transportation direction of the printing paper 200, the printing head 213 is used for printing, the carbon tape supply shaft 214 is located at the upstream of the printing head 213, the carbon tape supply is used for conveying the carbon tape towards the printing paper 200, and the carbon tape recovery shaft 215 is located at the downstream of the carbon tape supply shaft 214 in the transportation direction of the printing paper 200. The jack-up module 22 includes a jack-up cam 221, the jack-up cam 221 being rotatably provided on the carriage 4, the jack-up cam 221 being for driving the print head 213 to move between the printing position and the sleep position.

The roll paper printer of this embodiment operates as follows:

at the beginning of printing, the driving mechanism drives the printing paper 200 to run forwards, the guiding roller 312 is dragged to deflect upwards, until the first top block 3111 on the first swing link 311 contacts the second top block 3131 on the second swing link 313, the first swing link 311 can drive the second swing link 313 to rotate clockwise, and then the brake block 322 on the brake block 321 leaves the brake disc 33 (as shown in fig. 3), and the consumable reel 1 can rotate and output the printing paper 200 in size after losing the braking friction force.

The printing process comprises the following steps: when the paper roll printer needs single-sided printing, the detection group of the printing mechanism 2 positioned at the downstream detects that the printing paper 200 exists in the channel, the printing head 213 of the printing mechanism 2 positioned at the upstream leaves the rubber roller assembly 212 under the action of the jacking cam 221, the rubber roller assembly 212 positioned at the downstream positively drives the printing paper 200 to advance, and the printing head 213 is heated to finish printing. When the reverse printing is required, the lifting cam 221 rotates to reset and press the printing head 213 positioned at the upstream to the rubber roller assembly 212 correspondingly arranged, and the printing head 213 can be heated to finish printing.

And (3) printing is finished: when the printing mechanism 2 stops printing, the driving mechanism stops moving, the first swing rod 311 drives the guide roller 312 to move downwards for a certain distance under the action of the first elastic piece 314, and when the first top block 3111 and the second top block 3131 are disengaged, the second swing rod 313 rotates anticlockwise under the action of the second elastic piece 315 to drive the brake piece 322 to be pressed on the brake disc 33, so that direct continuous rotation is prevented, and overshoot of the paper roll 100 is avoided.

Embodiment two:

as shown in fig. 6, the upper half of the roll paper printer of the present embodiment is the same as that of the first embodiment, except that the first swing link 311 and the second swing link 313 of the brake mechanism 3 of the roll paper printer of the present embodiment have no direct mating relationship. Specifically, the brake mechanism 3 of the present embodiment further includes a grating assembly 34 and a brake motor 35, the first swing link 311 is provided with a blocking piece 3112 matched with the grating assembly 34, and the grating assembly 34 can detect the position of the first swing link 311 through the blocking piece 3112. The output shaft of the brake motor 35 is provided with a brake cam 351, and when the brake motor 35 drives the brake cam 351 to rotate, the brake cam 351 can drive the second swing rod 313 to move towards a direction away from the consumable reel 1 so as to realize that the brake module 32 releases the consumable reel 1.

Embodiment III:

as shown in fig. 7, the upper half of the roll paper printer of the present embodiment is the same as that of the first embodiment except that the brake mechanism 3 of the present embodiment includes a buffer module 31, a grating assembly 34, and an electromagnetic brake 36. The buffer module 31 includes a first swing link 311, a guide roller 312, and a first elastic member 314. One end of the first swing link 311 is rotatably connected to the inner side wall of the bracket 4, and a guide roller 312 is sleeved on the other end of the first swing link 311, and the guide roller 312 is used for guiding the printing paper 200 output when the consumable reel 1 rotates. The first swing link 311 is provided with a baffle 3112 matched with the grating assembly 34, and the grating assembly 34 can detect the position of the first swing link 311 through the baffle 3112. An electromagnetic brake 36 is provided on the consumable spool 1 to unwind or release the consumable spool 1.

Embodiment four:

as shown in fig. 8, the upper half of the roll paper printer of the present embodiment is the same as that of the first embodiment except that the brake mechanism 3 of the present embodiment includes a drive motor 37 that drives the consumable part roll shaft 1 to rotate, a distance sensor 38 provided on the holder 4, and a guide roller 312 rotatably provided on the holder 4. The distance sensor 38 is capable of detecting the position of the outermost turn of the roll 100 in real time.

The roll paper printers of the first to fourth embodiments have the following advantages:

first: more consumable materials can be loaded at one time, the maintenance period of the paper roll 100 printer is prolonged, and the maintenance cost of the paper roll printer is reduced;

second,: the working state of the printing head 213 can be flexibly set, and double-sided or multi-color printing is realized;

third,: the separated upper and lower structural design of the printing mechanism 2 and the consumable reel 1 improves the appearance aesthetic degree and the flexibility of structural design of the roll paper printer.

In the description of the present specification, reference to the term "some embodiments," "other embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is merely exemplary of the present application, and those skilled in the art should not be considered as limiting the application, since modifications may be made in the specific embodiments and application scope of the application in light of the teachings of the present application.

Claims

1. A roll paper printer, comprising:

a bracket (4);

a consumable reel (1) arranged on the bracket (4), wherein the consumable reel (1) is used for bearing a paper roll (100);

a printing mechanism (2) disposed on the holder (4), the printing mechanism (2) being capable of performing a printing operation on the printing paper (200); and

a brake mechanism (3) comprising:

the buffer module (31) is configured on the support (4), the buffer module (31) comprises a first swing rod (311) and a second swing rod (313), one end of the first swing rod (311) is rotatably connected to the support (4), the first swing rod (311) rotates under the pushing of the printing paper (200), and the second swing rod (313) can rotate on the support (4);

a brake module (32) including a brake pad (321), wherein the brake pad (321) includes a brake pad (322); and

the brake disc (33), the brake disc (33) is arranged on the consumable reel (1), the brake disc (33) and the consumable reel (1) synchronously rotate, and the brake block (321) is configured to drive the brake block (322) to be far away from or propped against the brake disc (33) in the rotation process of the second swing rod (313); and

a third elastic member (323) connected between the brake block (321) and the second swing link (313); the brake block (321) is rotatably arranged on the second swing rod (313);

the grating component (34) is arranged on the bracket (4) and can monitor the rotation position of the first swing rod (311);

-a brake motor (35), an output shaft of the brake motor (35) being configured to be rotatable in response to a signal of the grating assembly (34); wherein,

the grating assembly (34) is suitable for sending a signal to the brake motor (35) when the first swing rod (311) rotates clockwise, so that an output shaft of the brake motor (35) rotates to drive the second swing rod (311) to rotate in a direction away from the brake disc (33).

2. Roll paper printer according to claim 1, characterized in that the brake shoe (321) is turned by pushing the brake disc (33) against the force of the third elastic member (323).

3. Roll paper printer according to claim 1, characterized in that the buffer module (31) further comprises a first elastic member (314), the first elastic member (314) being arranged between the first swing lever (311) and the bracket (4) for resetting the first swing lever (311).

4. Roll paper printer according to claim 1, characterized in that the first swing lever (311) is reset under its own weight.

5. Roll paper printer according to claim 1, characterized in that the brake pad (322) has a cambered surface cooperating with the brake disc (33).

6. Roll paper printer according to claim 1, characterized in that the buffer module (31) further comprises a second elastic member (315), the second elastic member (315) being arranged between the second swing lever (313) and the bracket (4), the second elastic member (315) being used for resetting the second swing lever (313).

7. The roll paper printer according to claim 1, wherein the buffer module (31) further comprises a guide roller (312), the guide roller (312) is sleeved on the other end of the first swing link (311), and the guide roller (312) is used for guiding the printing paper (200).

8. Roll paper printer according to claim 1, characterized in that one end of the consumable reel (1) is sleeved with a bearing, which is fitted on the side wall of the holder (4).

9. Roll paper printer according to claim 1, characterized in that the printing mechanism (2) comprises a printing module (21), the printing module (21) comprising:

a detection component (211), wherein the detection component (211) is used for detecting the position of the printing paper (200);

a glue roller assembly (212), wherein the glue roller assembly (212) is positioned downstream of the detection assembly (211) in the transport direction of the printing paper (200), and the glue roller assembly (212) is used for conveying the printing paper (200);

and the printing head (213) is arranged corresponding to the rubber roller assembly (212) in the transportation direction of the printing paper (200), and the printing head (213) is used for printing.