CN217892296U

CN217892296U - Conveying mechanism, printer and label printer

Info

Publication number: CN217892296U
Application number: CN202221479462.2U
Authority: CN
Inventors: 不公告发明人
Original assignee: Xiamen Hanyin Electronic Technology Co Ltd
Current assignee: Xiamen Hanyin Co ltd
Priority date: 2022-06-14
Filing date: 2022-06-14
Publication date: 2022-11-25
Anticipated expiration: 2032-06-14

Abstract

The utility model relates to the technical field of printers, in particular to a transmission mechanism, a printer and a label printer, wherein the transmission mechanism comprises a driving roller component and a driven roller component, and the driving roller component comprises a first bracket and a driving roller arranged on the first bracket; the driven roller assembly comprises a first elastic part, a second support and a driven roller arranged on the second support, the second support is provided with a sliding groove allowing the driven roller to be close to or far away from the driving roller, and the sliding groove comprises a first end with the groove width smaller than the diameter of the driven roller and a second end with the groove width larger than the diameter of the driven roller; the first elastic member urges the driven roller toward the first end of the chute. This transmission device has solved when clearing up drive roll and driven voller, and there is loaded down with trivial details problem of dismouting step in drive roll and driven voller.

Description

Conveying mechanism, printer and label printer

Technical Field

The utility model relates to a printer technical field especially relates to a transmission device, printer and label printer.

Background

At present, a transmission device of a printer generally includes a drive roller and a driven roller disposed on a housing, the drive roller and the driven roller are abutted against each other, and the drive roller rotates while driving the driven roller to rotate, thereby transmitting paper and the like disposed between the drive roller and the driven roller.

After the conveying device is used for a long time, the surfaces of the driving roller and the driven roller are adhered with colloid, dust and the like, and if the conveying device is not cleaned in time, paper and the like arranged between the driving roller and the driven roller can be polluted, and even the printing quality is influenced. Therefore, there is a need for a transfer device that facilitates the disassembly of the drive or driven rollers to allow for periodic cleaning of the drive and driven rollers.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the utility model provides a conveying mechanism, printer and label printer to when clearing up drive roll and driven voller among the solution correlation technique, there is loaded down with trivial details problem of dismouting step in drive roll and driven voller.

In one aspect, the utility model provides a transmission device, include:

the driving roller assembly comprises a first bracket and a driving roller arranged on the first bracket;

the driven roller assembly comprises a first elastic piece, a second bracket and a driven roller arranged on the second bracket, a sliding groove allowing the driven roller to be close to or far away from the driving roller is arranged on the second bracket, and the sliding groove comprises a first end with the groove width smaller than the diameter of the driven roller and a second end with the groove width larger than the diameter of the driven roller; the first elastic member urges the driven roller toward the first end of the chute.

As a preferable technical scheme of the transmission mechanism, the driving roller assembly and the driven roller assembly are provided with a first position and a second position, and when the driving roller assembly and the driven roller assembly are located at the first position, the driven roller and the driving roller are abutted against each other; when the driving roller assembly and the driven roller assembly are in the second position, the driven roller and the driving roller are arranged at intervals.

As a preferable technical solution of the transmission mechanism, the first bracket and/or the second bracket is provided with a sliding structure or a rotating structure for the first bracket and the second bracket to approach or depart from each other.

As a preferable technical solution of the transmission mechanism, the transmission mechanism further includes a first driving member, and the first driving member drives the first bracket and/or the second bracket to move in a direction of approaching to each other.

As a preferable technical scheme of the transmission mechanism, the first driving member is of a cam structure.

As a preferred technical solution of the transmission mechanism, the first elastic member is a pressure spring, the pressure spring is disposed in the chute, and two ends of the pressure spring respectively abut against the second support and the driven roller.

The utility model provides a printer, including any one of the above-mentioned schemes transmission mechanism, printing mechanism and frame, transmission mechanism with printing mechanism all set up in the frame, transmission mechanism is used for the drive to beat printing paper and removes.

The utility model also provides a label printer, including transport mechanism, printing mechanism, peeling means and frame of any above-mentioned scheme, printing mechanism includes compression roller, heat transfer printing head and second driving piece, the compression roller is fixed in the frame, the heat transfer printing head activity sets up in the frame, the second driving piece drives the heat transfer printing head removes, makes set up in the frame the compression roller with the heat transfer printing head compresses tightly;

the peeling mechanism is used for peeling the label of the label paper transmitted from the printing mechanism from the base paper of the label paper;

the transmission mechanism is used for driving the base paper to move.

As the preferred technical scheme of label printer, print mechanism still includes the second elastic component, the thermal transfer head including print the support and with print support swing joint's pressure head, the second elastic component set up in print the support with between the pressure head and the drive the pressure head compresses tightly the compression roller.

As a preferred technical solution of the label printer, the label printer further includes a driving assembly, and the driving assembly simultaneously drives the driving roller and the pressing roller to rotate around their own axes.

The utility model has the advantages that:

the utility model provides a transmission mechanism, a printer and a label printer, wherein the transmission mechanism comprises a driving roller component and a driven roller component, the driving roller component comprises a first bracket and a driving roller arranged on the first bracket; the driven roller assembly comprises a first elastic part, a second support and a driven roller arranged on the second support, the second support is provided with a sliding groove allowing the driven roller to be close to or far away from the driving roller, and the sliding groove comprises a first end with the groove width smaller than the diameter of the driven roller and a second end with the groove width larger than the diameter of the driven roller; the first elastic member urges the driven roller toward the first end of the chute. After the transmission mechanism works for a long time, the surfaces of the driving roller and the driven roller are adhered with colloid, dust and the like, so that the printing paper is easily polluted, and the printing effect is even influenced. For this reason, this transmission device can be through pressing the driven voller, and then make the driven voller retreat to the second end of spout from the first end of spout, and at this moment, alright take out the driven voller from the second end of spout. This setting can make things convenient for taking out of driven voller, and then makes things convenient for the staff to clean driven voller and drive roll. And then solved when clearing up drive roll and driven voller, there is loaded down with trivial details problem of dismouting step in drive roll and driven voller.

Drawings

Fig. 1 is a schematic structural diagram of a label printer according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a label printer according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a transmission mechanism in an embodiment of the present invention.

In the figure:

1. a peeling mechanism;

21. a first bracket; 22. a second bracket; 221. a support plate; 222. a side plate; 2221. a chute; 2222. a first end; 2223. a second end; 23. a drive roll; 24. a driven roller; 25. a first elastic member; 26. a first driving member;

31. a compression roller; 32. a thermal transfer head; 321. a printing support; 322. a pressure head; 33. a second driving member; 34. a second elastic member;

4. a drive assembly; 5. supporting the plate member.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Where the terms "first position" and "second position" are two different positions, and where a first feature is "over", "above" and "on" a second feature, it is intended that the first feature is directly over and obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

On one hand, as shown in fig. 1 to 3, the present embodiment provides a label printer for peeling a label of a label paper from a base paper of the label paper, the label printer includes a frame 5, a printing mechanism, a peeling mechanism 1 and a conveying mechanism, the printing mechanism is disposed on the frame 5 and prints the label on the base paper; the peeling mechanism 1 is arranged on the frame 5, and the peeling mechanism 1 is used for separating the label and the base paper which are transmitted from the printing mechanism; the transmission mechanism comprises a driving roller assembly and a driven roller assembly, wherein the driving roller assembly comprises a first bracket 21 and a driving roller 23 arranged on the first bracket 21; the driven roller assembly comprises a first elastic member 25, a second bracket 22 and a driven roller 24 arranged on the second bracket 22, a sliding groove 2221 allowing the driven roller 24 to approach or depart from the driving roller 23 is arranged on the second bracket 22, and the sliding groove 2221 comprises a first end 2222 with a groove width smaller than the diameter of the driven roller 24 and a second end 2223 with a groove width larger than the diameter of the driven roller 24; the first elastic member 25 urges the driven roller 24 toward the first end 2222 of the sliding groove 2221. Meanwhile, the driving roller assembly and the driven roller assembly have a first position and a second position, and when the driving roller assembly and the driven roller assembly are in the first position, the driven roller 24 and the driving roller 23 are abutted against each other; when the drive roller assembly and the driven roller assembly are in the second position, the driven rollers 24 are spaced from the drive roller 23. Specifically, the first bracket is fixedly connected with the frame 5, and the second bracket is in sliding fit with the frame 5. When the label printer works, the second support 22 is driven to move firstly, the driving roller 23 and the driven roller 24 are switched to the second positions arranged at intervals, then the base paper transmitted from the printing mechanism is arranged between the driving roller 23 and the driven roller 24, the relative position between the second support 22 and the first support 21 is adjusted, the driving roller 23 and the driven roller 24 are switched to the first positions abutted against each other, and the driven roller 24 is driven by the first elastic piece 25 to approach the driving roller 23, so that the base paper is clamped by the driving roller 23 and the driven roller 24. At this time, the driving roller 23 rotates, and the driving roller 23 and the driven roller 24 drive the base paper to move together. In the process that the base paper is driven by the driving roller 23 and the driven roller 24 to move together, the moving speed of the base paper is always equal to the linear speed of the driving roller 23. This setting has been solved when coiling the base stock through base stock recovery roller, along with the radial increase of base stock, and then causes the roll-up speed crescent to the base stock, and then influences the problem of printing mechanism's the printing effect and the separation effect of peeling mechanism to base stock and label.

After the transmission mechanism of the label printer works for a long time, the surfaces of the driving roller 23 and the driven roller 24 are adhered with colloid, dust and the like, so that the printing paper is easily polluted, and the printing effect is even influenced. To this end, the transport mechanism can be configured to retract the driven roller 24 from the first end 2222 of the slot 2221 to the second end 2223 of the slot 2221 by pressing the driven roller 24, at which point the driven roller 24 can be removed from the second end 2223 of the slot 2221. The arrangement can facilitate the taking-out of the driven roller 24, and further facilitate cleaning of the driven roller 24 and the driving roller 23 by workers. And further, the problem that the assembling and disassembling steps of the driving roller 23 and the driven roller 24 are complicated when the driving roller 23 and the driven roller 24 are cleaned is solved.

Specifically, the second bracket 22 includes a supporting plate 221 and two side plates 222, the two side plates 222 are respectively disposed on two sides of the supporting plate 221 and enclose a through slot, one side plate 222 is slidably or rotatably fitted with the frame 5, the two sliding slots 2221 are respectively disposed on the two side plates 222, the driven roller 24 includes a rotating shaft and a roller body penetrating the rotating shaft, the rotating shaft is slidably disposed in the sliding slots 2221, and a width of the second end 2223 of the sliding slot 2221 is greater than an outer diameter of the roller body. By pressing the driven roller 24 in a direction approaching the support plate 221, and thereby sliding the driven roller 24 from the first end 2222 to the second end 2223 of the sliding groove 2221, the driven roller 24 can be taken out of or mounted to the second end 2223 of the sliding groove 2221 because the width of the second end 2223 of the sliding groove 2221 is greater than the outer diameter of the roller body.

Alternatively, the frame 5 is provided with a sliding structure or a rotating structure for the second bracket 22 to approach or depart from the first bracket 21. In this embodiment, the second bracket 22 is a rotating structure, specifically, the first bracket 21 is fixed on the frame 5, and the second bracket 22 is rotatably disposed on the frame 5. In other embodiments of this embodiment, the sliding support is a sliding fit with the frame 5. In other embodiments, the first support 21 is provided with a sliding structure or a rotating structure on the frame 5 close to or far away from the second support 22, or both the first support 21 and the second support 22 are provided with a sliding structure or a rotating structure on the frame 5 close to or far away from each other

Optionally, the transmission mechanism further comprises a first driving member 26, and the first driving member 26 drives the second bracket 22 to move towards the first bracket 21. Specifically, the first driving member 26 is a cam structure, and the cam structure abuts against the second bracket. In this embodiment, the user can drive the second bracket 22 to swing around the rotating shaft by rotating the cam structure. The cam mechanism has a rotating state of rotating about the rotating shaft and a fixed state of being fixed about the rotating shaft. In other embodiments, when the first bracket 21 is provided with a sliding structure or a rotating structure on the frame 5, which is close to or away from the second bracket 22, the first driving member 26 drives the first bracket 26 to move in a direction close to the second bracket 22;

or when the first support 21 and the second support 22 are both provided with a sliding structure or a rotating structure which is close to or away from each other on the frame 5, two first driving members 26 are provided, and the two first driving members respectively drive the first support 21 and the second support 22, so that the first support 21 and the second support 22 are close to each other.

The printing mechanism comprises a press roller 31, a thermal transfer printing head 32 and a second driving part 33, wherein the press roller 31 is fixedly arranged on the frame 5, the thermal transfer printing head 32 is movably arranged on the frame 5, and the second driving part 33 drives the thermal transfer printing head 32 to move, so that the press roller 31 and the thermal transfer printing head 32 arranged on the frame 5 are pressed tightly. In this embodiment, when the label printer works, the pressure roller 31 and the thermal transfer head 32 press the label paper tightly, along with the rotation of the pressure roller 31, the pressure roller 31 drives the label paper to move, and the thermal transfer head 32 prints the label on the label paper. In this process, the driving speed of the base paper is always equal to the linear speed of the press roller 31. Therefore, the speed of the base paper at the press roller 31 and the speed of the base paper at the drive roller 23 are not changed, and the speed difference between the base paper at the press roller 31 and the base paper at the drive roller 23 is ensured to be constant.

Specifically, the printing mechanism, the peeling mechanism 1, and the transport mechanism are provided on the chassis 5.

Alternatively, the second driver 33 is a cam structure, which abuts the thermal transfer head 32. In this embodiment, the second driving member 33 rotates on the frame 5 around the rotation axis of the second driving member 33, and the second driving member 33 drives the thermal transfer head 32 to swing.

Optionally, the printing mechanism further includes a second elastic member 34, the thermal transfer head 32 includes a printing support 321 and a pressing head 322 movably connected to the printing support 321, the second elastic member 34 is disposed between the printing support 321 and the pressing head 322, and the driving head 322 presses the pressing roller 31. In this embodiment, the second elastic member 34 is a pressure spring, and it is provided with two, and two pressure springs all set up between printing support 321 and pressure head 322, and then when pressure head 322 and compression roller 31 butt, two pressure springs can drive pressure head 322 and move to the direction of compression roller 31, and then make pressure head 322 compress tightly label paper on compression roller 31.

Optionally, the label printer further comprises a drive assembly 4, the drive assembly 4 simultaneously driving the drive roller 23 and the pressure roller 31 in rotation about their own axes. In the present embodiment, the above setting can ensure that the difference in the rotation speed between the drive roller 23 and the pressure roller 31 is constant. Specifically, the drive assembly 4 includes a drive motor and a gear assembly.

On the other hand, this embodiment still provides a printer, this printer includes transport mechanism, printing mechanism and frame in above-mentioned scheme, and transport mechanism and printing mechanism all set up in frame 5, and transport mechanism is used for driving printing paper to remove.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A transport mechanism, comprising:

a drive roll assembly comprising a first carriage (21) and a drive roll (23) disposed on the first carriage (21);

the driven roller assembly comprises a first elastic member (25), a second bracket (22) and a driven roller (24) arranged on the second bracket (22), a sliding groove (2221) allowing the driven roller (24) to be close to or far away from the driving roller (23) is formed in the second bracket (22), and the sliding groove (2221) comprises a first end (2222) with the groove width smaller than the diameter of the driven roller (24) and a second end (2223) with the groove width larger than the diameter of the driven roller (24); the first elastic member (25) urges the driven roller (24) toward a first end (2222) of the sliding groove (2221).

2. The transmission mechanism according to claim 1, characterized in that said drive roller assembly and said driven roller assembly have a first position and a second position, said driven roller (24) and said drive roller (23) abutting each other when said drive roller assembly and said driven roller assembly are in said first position; when the drive roller assembly and the driven roller assembly are in the second position, the driven roller (24) is spaced from the drive roller (23).

3. The transfer mechanism according to claim 2, characterized in that the first bracket (21) and/or the second bracket (22) are provided with a sliding or rotating structure for the first bracket and the second bracket (22) to approach or move away from each other.

4. The transfer mechanism according to claim 2, further comprising a first drive member (26), wherein the first drive member (26) drives the first bracket (21) and/or the second bracket (22) to move in a direction to approach each other.

5. The transmission mechanism as claimed in claim 4, characterised in that said first drive member (26) is of cam construction.

6. The transmission mechanism according to claim 1, wherein the first elastic member (25) is a compression spring, and the compression spring is disposed in the sliding groove (2221) and two ends of the compression spring abut against the second bracket (22) and the driven roller (24), respectively.

7. A printer comprising a transport mechanism according to any one of claims 1 to 6, a printing mechanism and a frame (5), said transport mechanism and said printing mechanism being arranged in said frame (5), said transport mechanism being adapted to drive the movement of the printing paper.

8. A label printer comprising the transport mechanism, printing mechanism, peeling mechanism (1) and frame (5) of any one of claims 1 to 6, wherein the printing mechanism comprises a pressure roller (31), a thermal transfer head (32) and a second driving member (33), the pressure roller (31) is fixedly arranged on the frame (5), the thermal transfer head (32) is movably arranged on the frame (5), and the second driving member (33) drives the thermal transfer head (32) to move, so that the pressure roller (31) and the thermal transfer head (32) arranged on the frame (5) are pressed;

the peeling mechanism (1) is used for peeling the label of the label paper delivered from the printing mechanism from the base paper of the label paper;

the transmission mechanism is used for driving the base paper to move.

9. The label printer according to claim 8, characterized in that said printing mechanism further comprises a second elastic member (34), the thermal transfer head (32) comprising a printing support (321) and a pressure head (322) movably connected to said printing support (321), said second elastic member (34) being arranged between said printing support (321) and said pressure head (322) and driving said pressure head (322) to press said pressure roller (31).

10. A label printer according to claim 8, further comprising a drive assembly (4), said drive assembly (4) simultaneously driving said drive roller (23) and said pressure roller (31) in rotation about their own axes.