CN219927308U - Printer with a printer body - Google Patents

Abstract

The utility model discloses a printer, which comprises a printer body, a driving roller, a driven roller, a first elastic piece and a second elastic piece, wherein the printer body comprises a first side wall and a second side wall, the first side wall is provided with a first chute, and the second side wall is provided with a second chute; the active roller is arranged between the first side wall and the second side wall; the driven roller and the driving roller extend in parallel, the driven roller comprises a first end and a second end, the first end is rotatably inserted into the first chute, and the second end is rotatably inserted into the second chute; the first elastic piece stretches into the first chute and is connected with the first end; the second elastic piece stretches into the second chute and is connected with the second end; the first end is equipped with first magnetism portion of inhaling towards one side of first extension end, and the end wall of first extension end inlays and is equipped with the second magnetism portion of inhaling, and first magnetism portion of inhaling is inhaled with the second magnetism and is inhaled the portion magnetism and inhale the connection. The technical scheme of the utility model is beneficial to enabling the driven roller to be abutted against the driving roller.

Description

Printer with a printer body

Technical Field

The utility model relates to the technical field of printers, in particular to a printer.

Background

At present, a transmission device of a printer is generally provided with a driving roller and a driven roller on a housing, the driving roller and the driven roller are abutted against each other, and the driving roller is rotated and simultaneously drives the driven roller to rotate, so that paper arranged between the driving roller and the driven roller is transmitted.

In order to facilitate the disassembly of the driven roller, the two side walls of the driven roller are provided with sliding grooves on the shell, the sliding grooves extend to the side edges of the corresponding side walls and are provided with openings for the end parts of the driven roller to be placed in, when the driven roller is disassembled, the driven roller only needs to slide in the two sliding grooves until the driven roller moves to the openings to be taken out, in order to ensure that the driven roller can be effectively abutted against the end wall of the sliding grooves in the use process so as to ensure the tight fit between the driven roller and the driving roller, the spring connected with the driven roller is also arranged in the sliding grooves, and the elastic force of the spring can drive the driven roller to move in the direction of abutting against the driving roller, however, because the spring is easy to generate elastic fatigue after being used for a long time, the driven roller cannot be effectively abutted against the driving roller, and therefore, the improvement is needed by a person skilled in the art.

Disclosure of Invention

The utility model mainly aims to provide a printer, which aims to solve the technical problem that a driven roller cannot be abutted against a driving roller after the printer in the prior art is used for a long time.

In order to achieve the above objective, the present utility model provides a printer, comprising a machine body, a driving roller, a driven roller, a first elastic member and a second elastic member; wherein, the liquid crystal display device comprises a liquid crystal display device,

the machine body comprises a first side wall and a second side wall which are oppositely arranged, wherein the first side wall is provided with a first sliding groove extending along the height direction of the machine body, the second side wall is provided with a second sliding groove extending in parallel with the first sliding groove, the first sliding groove extends to the top wall surface of the first side wall and is provided with a first opening, one end of the first sliding groove far away from the first opening is formed into a first extending end, the second sliding groove extends to the top wall surface of the second side wall and is provided with a second opening, and one end of the second sliding groove far away from the second opening is formed into a second extending end;

the active roller is arranged between the first side wall and the second side wall;

the driven roller extends in parallel with the driving roller, and comprises a first end and a second end which are oppositely arranged, wherein the first end is rotatably inserted into the first chute, and the second end is rotatably inserted into the second chute;

the first elastic piece stretches into the first sliding groove from the first opening and is connected with the first end so as to drive the first end to abut against the end wall of the first extending end; and

the second elastic piece stretches into the second sliding groove from the second opening and is connected with the second end so as to drive the second end to abut against the end wall of the second extending end; wherein, the liquid crystal display device comprises a liquid crystal display device,

the first end is towards one side of first extension end is equipped with first magnetism and inhales the portion, the end wall of first extension end inlays and has had the second magnetism to inhale the portion, first magnetism inhale the portion with the second magnetism inhale the portion magnetism inhale and be connected, in order to drive first end is along being close to the direction of first extension end is removed.

In one possible embodiment, the first end is sleeved with a first magnetic ring, and the side of the first magnetic ring facing the first extending end is formed with the first magnetic attraction part.

In a possible implementation manner, the second magnetic part comprises a magnetic surface exposed from the first chute, and the magnetic surface is arranged in a concave arc surface matched with the outer wall surface of the first magnetic ring.

In one possible embodiment, the magnetic attraction surface is disposed flush with an inner wall surface of the first extension end.

In a possible embodiment, a third magnetic attraction part is arranged on one side, facing the second extending end, of the second end, a fourth magnetic attraction part is arranged on the end wall of the second extending end, and the third magnetic attraction part is magnetically attracted with the fourth magnetic attraction part to drive the second end to move along the direction approaching the second extending end.

In one possible embodiment, a first flexible member is convexly disposed on one side wall of the first chute, the first flexible member is disposed between the first opening and the first extending end, a first deceleration channel is formed by matching the first flexible member with the other side wall of the first chute, and the first deceleration channel is used for reducing the moving speed of the first end from the first opening to the first extending end.

In one possible embodiment, the number of the first flexible pieces is two, the two first flexible pieces are arranged oppositely, and the two first flexible pieces are matched together to form the first speed reducing channel.

In one possible embodiment, the first deceleration channel is provided in a diverging manner in the direction from the first opening to the first extension end.

In one possible embodiment, a second flexible member is protruding from one side wall of the second chute, the second flexible member is disposed between the second opening and the second extending end, and a second deceleration channel is formed by matching the second flexible member with the other side wall of the second chute, and the second deceleration channel is used for reducing the moving speed of the second end from the second opening to the second extending end.

In one possible embodiment, the first chute comprises a first chute section and a second chute section, one end of the first chute section is formed with the first opening, the other end of the first chute section is communicated with one end of the second chute section, and the other end of the second chute section is formed with the first extension end;

the first groove section has a groove width greater than the second groove section.

According to the printer, the first magnetic attraction part is arranged at the end part of the driven roller, the second magnetic attraction part is arranged at the end wall of the first extension end, and the problem that the first end cannot be effectively abutted against the end wall of the first extension end due to elastic fatigue after the first elastic piece is used for a long time can be solved based on the magnetic attraction connection between the first magnetic attraction part and the second magnetic attraction part, so that the matching compactness between the driven roller and the driving roller is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a printer according to an embodiment of the present utility model;

fig. 2 is an exploded view of the printer of fig. 1.

Reference numerals illustrate:

1. a body; 11. a first sidewall; 111. a first chute; 111a, a first opening; 111b, a first extension; 111c, a first deceleration channel; 111d, a first groove section; 111e, a second groove section; 112. a second magnetic attraction part; 113. a first flexible member; 114. a mounting groove; 12. a second sidewall; 121. a second chute; 121a, a second opening; 121b, a second extension; 121c, a second deceleration channel; 122. a fourth magnetic attraction part; 123. a second flexible member; 2. a driven roller; 21. a first end; 22. a second end; 23. a first magnetic ring; 231. a first magnetic attraction part; 24. a third magnetic attraction part; 3. an active roller; 4. a first elastic member; 5. and a second elastic member.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The utility model provides a printer.

In the embodiment of the present utility model, as shown in fig. 1 and 2, the printer includes a machine body 1, a driving roller 3, a driven roller 2, a first elastic member 4 and a second elastic member 5; wherein, the liquid crystal display device comprises a liquid crystal display device,

the body 1 includes a first side wall 11 and a second side wall 12 disposed opposite to each other, the first side wall 11 is provided with a first chute 111 extending in a height direction of the body 1, the second side wall 12 is provided with a second chute 121 extending in parallel with the first chute 111, the first chute 111 extends to a top wall surface of the first side wall 11 and is formed with a first opening 111a, one end of the first chute 111 away from the first opening 111a is formed as a first extending end 111b, the second chute 121 extends to a top wall surface of the second side wall 12 and is formed with a second opening 121a, and one end of the second chute 121 away from the second opening 121a is formed as a second extending end 121b.

The active roller 3 is arranged between the first sidewall 11 and the second sidewall 12. In practice, the two ends of the active roller 3 may be mounted on the first sidewall 11 and the second sidewall 12, respectively, or on other components, and located between the first sidewall 11 and the second sidewall 12, without being limited thereto.

The driven roller 2 extends in parallel with the driving roller 3, and the driven roller 2 includes a first end 21 and a second end 22 disposed opposite to each other, the first end 21 being rotatably inserted into the first runner 111, and the second end 22 being rotatably inserted into the second runner 121. It should be appreciated that when the first end 21 of the driven roller 2 abuts against the end wall of the first extended end 111b, and when the second end 22 of the driven roller 2 abuts against the end wall of the second extended end 121b, the outer peripheral wall of the driven roller 2 can abut against the outer peripheral wall of the driving roller 3 to convey paper disposed between the driving roller 3 and the driven roller 2.

The first elastic member 4 extends into the first chute 111 from the first opening 111a and is connected to the first end 21, so as to drive the first end 21 to abut against the end wall of the first extension end 111 b. In a specific implementation, the end of the first elastic member 4 away from the first end 21 may be mounted on other components on the machine body 1, as shown in fig. 1, a baffle is disposed at the first opening 111a for connecting the first elastic member 4, or the end of the first elastic member 4 away from the first end 21 may also be directly mounted on the first side wall 11, which is not limited herein.

The second elastic member 5 extends into the second chute 121 from the second opening 121a and is connected to the second end 22, so as to drive the second end 22 to abut against the end wall of the second extension end 121b. Similarly, in the embodiment, the end of the second elastic member 5 away from the second end 22 may be mounted on other components of the machine body 1, as shown in fig. 1, a baffle is disposed at the second opening 121a for connecting the second elastic member 5, or the end of the second elastic member 5 away from the second end 22 may also be directly mounted on the second side wall 12, which is not limited herein.

In the specific implementation, the first elastic member 4 and the second elastic member 5 may be elastic material members such as springs, elastic colloid, and the like, which are not particularly limited herein.

The first end 21 is provided with a first magnetic attraction portion 231 towards one side of the first extending end 111b, and the end wall of the first extending end 111b is embedded with a second magnetic attraction portion 112, and the first magnetic attraction portion 231 is magnetically attracted to the second magnetic attraction portion 112 to drive the first end 21 to move along the direction approaching the first extending end 111 b.

In particular embodiments, in some embodiments, one of the first magnetic attraction portion 231 and the second magnetic attraction portion 112 may be a magnet, and the other may be a metal material, and in other embodiments, both the first magnetic attraction portion 231 and the second magnetic attraction portion 112 may be magnets.

It can be appreciated that, in the printer of the present utility model, by providing the first magnetic attraction portion 231 at the end portion of the driven roller 2 and providing the second magnetic attraction portion 112 at the end wall of the first extended end 111b, the problem that the first end 21 cannot be effectively abutted against the end wall of the first extended end 111b due to elastic fatigue of the first elastic member 4 after long-term use can be solved based on the magnetic attraction connection between the first magnetic attraction portion 231 and the second magnetic attraction portion 112, thereby ensuring the tightness of the fit between the driven roller 2 and the driving roller 3.

In a specific implementation, the magnet or the metal part formed with the first magnetic attraction portion 231 may be designed to be mounted on the first end 21 in a block structure or a ring structure, preferably, the first magnetic attraction portion 231 is formed in a ring structure in the design of the present utility model so as to facilitate the mutual assembly with the driven roller 2, specifically, the first end 21 is sleeved with the first magnetic ring 23, and the first magnetic attraction portion 231 is formed on the side of the first magnetic ring 23 facing the first extension end 111 b.

To ensure that the first end 21 may be able to rotate within the first magnetic ring 23, in some embodiments, bearings (not shown) may be provided between the first end 21 and the first magnetic ring 23.

In some embodiments, the second magnetic part 112 may be installed inside the first sidewall 11, where the second magnetic part 112 and the first magnetic part 231 are spaced apart to attract each other, and in other embodiments, as shown in fig. 2, an installation groove 114 may be formed on an end wall of the first extension end 111b, and the second magnetic part 112 is embedded in the installation groove 114, so that an outer wall surface of the second magnetic part 112 may be exposed to the outside to be tightly matched with the first magnetic part 231.

The second magnetic part 112 is preferably exposed to the outside, and specifically, in order to ensure that the first magnetic part 231 and the second magnetic part 112 can be tightly attached, in the present utility model, the second magnetic part 112 includes a magnetic surface exposed to the first chute 111, and the magnetic surface is arranged as a concave arc surface adapted to the outer wall surface of the first magnetic ring 23.

In order to avoid that the driven roller 2 cannot abut against the driving roller 3 after the first magnetic attraction portion 231 and the second magnetic attraction portion 112 are magnetically attracted, it is preferable that the magnetic attraction surface does not protrude from the notch of the mounting groove 114, that is, the magnetic attraction surface is flush with the inner wall surface of the first extension end 111 b.

In order to ensure that both ends of the driven roller 2 can abut against corresponding end walls of the chute under the action of magnetic attraction force, preferably, a third magnetic attraction portion 24 is disposed on one side of the second end 22 facing the second extension end 121b, a fourth magnetic attraction portion 122 is disposed on the end wall of the second extension end 121b, and the third magnetic attraction portion 24 is magnetically attracted to the fourth magnetic attraction portion 122 to drive the second end 22 to move along a direction approaching the second extension end 121b.

Similarly, in some embodiments, one of the third magnetic attraction portion 24 and the fourth magnetic attraction portion 122 may be a magnet, and the other may be a metal material, and in other embodiments, both the third magnetic attraction portion 24 and the fourth magnetic attraction portion 122 may be magnets.

It should be further noted that, the specific structure and the mounting manner of the third magnetic attraction portion 24 and the fourth magnetic attraction portion 122 may refer to the specific structure and the mounting manner of the first magnetic attraction portion 231 and the second magnetic attraction portion 112, which are not described herein.

Since the first end 21 of the driven roller 2 is easy to fall down rapidly in the first sliding under the elastic force of the first elastic member 4 during the installation of the driven roller 2, which causes the first magnetic ring 23 installed at the first end 21 to collide with the wall surface of the first extended end 111b or the second magnetic attraction portion 112 easily, and further wear is caused, in order to avoid this phenomenon, in this embodiment, a first flexible member 113 is protruding from one side wall of the first sliding groove 111, the first flexible member 113 is disposed between the first opening 111a and the first extended end 111b, a first deceleration channel 111c is formed by the first flexible member 113 and the other side wall of the first sliding groove 111 in a matching manner, and the first deceleration channel 111c is used to reduce the moving speed of the first end 21 from the first opening 111a to the first extended end 111 b. Therefore, the first flexible piece 113 blocks the driven roller 2 in the falling process of the driven roller 2, so that the moving speed of the driven roller 2 can be effectively reduced, and further the first magnetic ring 23 is prevented from being knocked and damaged due to the fact that the moving speed of the driven roller 2 is too high.

In the embodiment, the first flexible member 113 may be a flexible member such as a silicone, rubber, or sponge, which is not specifically limited.

In order to improve the deceleration effect, preferably, the number of the first flexible members 113 is two, the two first flexible members 113 are oppositely arranged, and the two first flexible members 113 are cooperatively formed with a first deceleration channel 111c.

The first deceleration channel 111c is disposed in a diverging manner in a direction from the first opening 111a to the first extension end 111 b. It will be appreciated that at the moment when the first flexible member 113 contacts the first magnetic ring 23 on the first end 21, the drop speed of the driven roller 2 is fastest, so that a larger resistance is required to quickly reduce the drop speed, and after effectively reducing the drop speed, to ensure that the driven roller can smoothly move to the first extended end 111b, the resistance is required to be reduced, i.e. the width of the first deceleration channel 111c is increased, so as to ensure that the driven roller 2 can move to the first extended end 111 b.

Similarly, in order to avoid the occurrence of the collision and wear of the magnetic ring at the second end 22 of the driven roller 2 due to the too high dropping speed of the driven roller 2, in this embodiment, a second flexible member 123 is protruding from one side wall of the second chute 121, the second flexible member 123 is disposed between the second opening 121a and the second extending end 121b, a second deceleration channel 121c is formed by the second flexible member 123 and the other side wall of the second chute 121, and the second deceleration channel 121c is used for reducing the moving speed of the second end 22 from the second opening 121a to the second extending end 121b.

In the embodiment, the second flexible member 123 may be a flexible member such as a silicone, rubber, or sponge, which is not specifically limited.

In order to facilitate the first end 21 being placed into the first sliding groove 111 from the first opening 111a, and after the first end 21 moves to the first extending end 111b, the first magnetic ring 23 on the first end 21 can abut against the groove wall of the first sliding groove 111, in this embodiment, the first sliding groove 111 includes a first groove section 111d and a second groove section 111e, one end of the first groove section 111d is formed with the first opening 111a, the other end of the first groove section 111d is communicated with one end of the second groove section 111e, and the other end of the second groove section 111e is formed as the first extending end 111b; the first groove section 111d has a groove width greater than the groove width of the second groove section 111 e.

In order to reduce development costs, the shape of the second chute 121 may be designed with reference to the shape of the first chute 111, which is not described herein in detail.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (10)

1. A printer, comprising:

the machine body comprises a first side wall and a second side wall which are oppositely arranged, wherein the first side wall is provided with a first sliding groove extending along the height direction of the machine body, the second side wall is provided with a second sliding groove extending in parallel with the first sliding groove, the first sliding groove extends to the top wall surface of the first side wall and is provided with a first opening, one end of the first sliding groove, which is far away from the first opening, is formed into a first extending end, the second sliding groove extends to the top wall surface of the second side wall and is provided with a second opening, and one end of the second sliding groove, which is far away from the second opening, is formed into a second extending end;

the active roller is arranged between the first side wall and the second side wall;

the driven roller extends in parallel with the driving roller and comprises a first end and a second end which are oppositely arranged, wherein the first end is rotatably inserted into the first chute, and the second end is rotatably inserted into the second chute;

the first elastic piece extends into the first sliding groove from the first opening and is connected with the first end so as to drive the first end to abut against the end wall of the first extending end; and

the second elastic piece extends into the second sliding groove from the second opening and is connected with the second end so as to drive the second end to abut against the end wall of the second extending end; wherein, the liquid crystal display device comprises a liquid crystal display device,

the first end is towards one side of first extension end is equipped with first magnetism and inhales the portion, the end wall of first extension end inlays and has had the second magnetism to inhale the portion, first magnetism inhale the portion with the second magnetism inhale the portion magnetism inhale and be connected, in order to drive first end is along being close to the direction of first extension end is removed.

2. The printer of claim 1, wherein the first end is sleeved with a first magnetic ring, and the first magnetic portion is formed on a side of the first magnetic ring facing the first extension end.

3. The printer of claim 2, wherein the second magnetic part comprises a magnetic surface exposed from the first chute, and the magnetic surface is arranged in a concave arc surface matched with the outer wall surface of the first magnetic ring.

4. A printer according to claim 3, wherein the magnetically attractable surface is disposed flush with the inner wall surface of the first extension.

5. The printer of claim 1, wherein a third magnetic attraction portion is provided on a side of the second end facing the second extension end, a fourth magnetic attraction portion is provided on an end wall of the second extension end, and the third magnetic attraction portion is magnetically attracted to the fourth magnetic attraction portion to drive the second end to move in a direction approaching the second extension end.

6. The printer of claim 1, wherein a first flexible member is protruding from one side wall of the first chute, the first flexible member is disposed between the first opening and the first extension end, and a first deceleration channel is formed by matching the first flexible member with the other side wall of the first chute, and the first deceleration channel is used for reducing the moving speed of the first end from the first opening to the first extension end.

7. The printer of claim 6, wherein the number of said first flexible members is two, two of said first flexible members are disposed opposite each other, and said first deceleration passages are formed by the cooperation of said two first flexible members.

8. The printer of claim 6 wherein said first deceleration channel is tapered in a direction from said first opening to said first extension.

9. The printer of claim 1, wherein a second flexible member is disposed between the second opening and the second extension end, and a second deceleration channel is formed by the second flexible member and the other side wall of the second chute, and the second deceleration channel is used for reducing the moving speed of the second end from the second opening to the second extension end.

10. The printer of claim 1, wherein the first chute comprises a first chute section and a second chute section, one end of the first chute section being formed with the first opening, the other end of the first chute section being in communication with one end of the second chute section, the other end of the second chute section being formed as the first extension end;

the first groove section has a groove width greater than the second groove section.