CN111332040A

CN111332040A - Flip printer

Info

Publication number: CN111332040A
Application number: CN202010260383.1A
Authority: CN
Inventors: 不公告发明人
Original assignee: Xiamen Hanyin Electronic Technology Co Ltd
Current assignee: Xiamen Hanyin Electronic Technology Co Ltd
Priority date: 2020-04-03
Filing date: 2020-04-03
Publication date: 2020-06-26

Abstract

The invention relates to a flip printer, which comprises a main body and an upper cover, wherein the upper cover is provided with a driving gear for driving a printing roller to rotate, the main body is provided with a speed reducing gear installation cavity for installing a speed reducing gear and a motor for providing power for the printing roller, the corresponding position of the installation cavity facing the driving gear is provided with an opening, and the driving gear is connected with a gear set through the opening; the shielding mechanism can close the opening after the upper cover is opened. According to the invention, the shielding mechanism is arranged, so that foreign objects are effectively prevented from entering the installation cavity to influence the rotation of the gear set, and the service life of the printer is prolonged.

Description

Flip printer

Technical Field

The invention relates to the technical field of printers, in particular to a flip printer.

Background

The printer is a common device in daily work, but the printer often fails, and many failures are caused only when external dust or foreign matters enter the printer. In the prior art, in some printers, the printing roller is arranged on the upper cover, the motor and the reduction gear set for driving the printing roller are arranged on the main body, and then the opening is formed in the main body to connect the driving gear with the reduction gear set, so that foreign objects are likely to enter the printer, particularly the reduction gear installation cavity.

The utility model patent of utility model "printer gear box dustproof mechanism" like grant publication No. CN204977854U, its main technique of disclosing does: a dustproof mechanism for the gear box of printer is composed of a main body with a main body and a speed-varying gear set engaged with rubber roller gear, a gear box consisting of side cover and main body, a motor gear engaged with multiple gear sets, a dustproof sheet between the small gear of last gear set and the big gear of last gear set, and a blocking piece on one side of said dustproof sheet for isolating the front gear set from the last gear set.

Present flip printer is all to doing the protection to the gear box when closed, but opens the back when the printer upper cover, exposes the gear train in the downside, falls into the foreign matter easily, and the foreign matter can cause the abnormal sound of transmission process on attached to the driving gear of gear, blocks, bad phenomena such as tooth damage.

Disclosure of Invention

The invention discloses a flip printer, which solves the problem of gear set protection after an upper cover of the printer is opened.

The invention adopts the following scheme:

the utility model provides a flip printer, includes main part and upper cover, the upper cover is equipped with drive print roller pivoted drive gear, be equipped with in the main part and be used for the reduction gear installation cavity of reduction gear group installation and give the print roller provides the motor of power, the installation cavity orientation drive gear's corresponding position is located there is the opening, drive gear passes through the opening with the gear train meshing still includes shelters from the mechanism, shelter from the mechanism and be in can close after the upper cover is opened the opening.

As a further improvement, the shutter mechanism includes a shutter piece for opening or closing the opening and an elastic member for restoring the shutter piece.

As a further improvement, the upper cover is provided with a trigger part, the upper cover is covered with the main body, and the trigger part enables the shielding piece of the shielding mechanism to rotate and open so as to enable the driving gear to be meshed with the reduction gear set.

As a further improvement, the reduction gear set includes a drive gear directly meshed with the drive gear, and the shutter rotates about an axis of the drive gear to open or close the opening.

As a further improvement, the main body is provided with an arc-shaped elastic piece mounting groove, the shielding piece is provided with an extension part for shielding part or all of the mounting groove, and the elastic piece is arranged between the extension part and the mounting groove.

As a further improvement, the shielding piece is provided with a force-bearing part matched with the trigger part, and when the upper cover covers the main body, the trigger part applies pressure to the force-bearing part to enable the shielding piece to rotate to open the opening.

As a further improvement, the installation cavity further comprises a limiting structure, and the limiting structure is used for limiting the rotation angle of the shielding piece when the installation cavity is closed.

As a further improvement, the rear end of the upper cover is rotatably pivoted on the main body, and the trigger part is arranged at the front end of the upper cover.

As a further improvement, the upper cover comprises a connecting frame, a cutting part for cutting printing paper is arranged on the connecting frame, and the triggering part is arranged on the connecting frame and integrally formed with the connecting frame.

By adopting the technical scheme, the invention can obtain the following technical effects:

1. according to the invention, by designing the shielding mechanism, when the upper cover is opened, foreign objects can be effectively prevented from entering the mounting cavity to influence the rotation of the gear set, so that the gear set is protected, and the service life of the printer can be prolonged.

2. The shielding mechanism comprises the shielding piece and the elastic piece, is simple in structure and few in parts, reduces errors caused by linkage, effectively improves the production efficiency of products and reduces the cost of the products.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the present invention with the upper cover opened and the side of the main body removed;

FIG. 3 is a schematic view of the present invention with the side of the main body removed by the cover;

FIG. 4 is a schematic view of the construction of the shielding plate of the present invention;

FIG. 5 is a schematic cross-sectional view A-A of FIG. 1;

FIG. 6 is a schematic view of the construction of the connecting frame of the present invention;

icon: 1. a main body; 2. an upper cover; 3. a shielding mechanism; 4. a gear set; 5. a motor; 6. a connecting frame; 7. a hook structure; 8. a limiting structure; 9. a button; 11. a mounting cavity; 12. mounting grooves; 13. avoiding holes; 21. a print roller; 22. a drive gear; 23. a trigger section; 31. a shielding sheet; 32. an elastic member; 41. a driving gear; 61. a cutting part; 81. a first limiting part; 82. limiting ribs; 111. a gear cover; 112. an opening; 311. shielding the main part; 312. a shielding portion; 313. a convex portion; 314. an extension portion; 315. a force receiving portion; 411. an axis.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, it is to 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", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

Referring to fig. 1, the present embodiment provides a flip printer, including main body 1 and upper cover 2, the upper cover 2 is equipped with print roller 21 and drive print roller 21 pivoted drive gear 22, is equipped with the reduction gear installation cavity 11 that is used for the installation of reduction gear 4 on the main body 1 and gives print roller 21 provides powered motor 5, is equipped with a gear cover 111 in the outside of installation cavity 11, gear cover 111 fixes on main body 1 and covers the outside of installation cavity 11. The mounting cavity 11 is provided with an opening 112 facing the corresponding direction of the driving gear 22, when the main body 1 and the upper cover 2 are covered, the driving gear 22 is connected with the gear set 4 through the opening 112, and the motor 5 transmits power from the gear set 4 to the driving gear 22 so as to drive the printing roller 21 to rotate. When the upper cover 2 is opened, the opening 112 is exposed, foreign objects are easy to fall into, and the foreign objects are attached to the gear set 4, which is easy to cause abnormal noise in the transmission process, and causes the undesirable phenomena of gear set 4 jamming or tooth damage. Therefore, the opening 112 is provided with the shielding mechanism 3 capable of blocking foreign objects from entering the reduction gear installation cavity 11 through the opening 112, so that the gear set 4 in the main body 1 after the upper cover 2 is opened has a better protection structure, the foreign objects are not easy to fall, the protection effect is achieved, and the service life of the printer is prolonged.

Referring to fig. 2 to 4, the shutter mechanism 3 includes a shutter piece 31 for opening or closing the opening 112 and an elastic member 32 for restoring the shutter piece 31. The shielding piece 31 includes a shielding main member 311 disposed in parallel with the outer side of the gear cover 111, a shielding portion 312 disposed on the inner side of the shielding main member 311 and extending along the mounting cavity 11 to completely cover the opening 112 of the mounting cavity 11, a protrusion 313 disposed on the shielding main member 311 and used for bearing the elastic force of the elastic member 32 to enable the shielding main member 311 to rotate and reset around the axis 411, an arc-shaped elastic member mounting groove 12 extending in the direction extending along the plane direction of the shielding main member 311 and disposed on the shielding main member 311 and used for bearing the external force to enable the shielding main member 311 to rotate around the axis 411, and a force-bearing portion 315 disposed on the shielding main member 311 and used for bearing the external force to enable the shielding main member. The side that is located installation cavity 11 at main part 1 is equipped with arc elastic component mounting groove 12, and elastic component 32 installs in mounting groove 12, and one end butt mounting groove 12 bottom, other end butt convex part 313 is for one side of mounting groove 12. When the upper cover 2 is closed, the force-receiving portion 315 is pressed from the outside to make the force-receiving portion 315 drive the shielding main member 311 to rotate around the axis 411, so that the shielding portion 312 originally covering the opening 112 of the mounting cavity 11 rotates, the opening 112 of the mounting cavity 11 is opened, the driving gear 22 is engaged with the gear set 4 when the upper cover 2 is closed, and at this time, the protrusion 313 moves towards the bottom of the mounting groove 12 to compress the elastic member 32, so that the elastic member 32 has elastic force. When the upper lid 2 is opened, the pressure applied to the force receiving portion 315 is removed, and the convex portion 313 is restored by the elastic force of the elastic member 32, and the shielding main member 311 is rotationally restored about the axis 411 by the elastic force, so that the shielding portion 312 covers the opening 112 of the mounting chamber 11, thereby closing the mounting chamber 11. Foreign objects can be effectively blocked from entering the installation cavity 11 through the shielding mechanism 3, so that the printer can be prevented from faults caused by the entering of the foreign objects.

Referring to fig. 2 and 3, the upper cover 2 is provided with a triggering portion 23, and during the process of closing the upper cover 2, the triggering portion 23 abuts against the force-receiving portion 315 to apply pressure to the force-receiving portion 315, so that the shielding piece 31 of the shielding mechanism 3 rotates to open the opening 112 of the mounting cavity 11 to engage the driving gear 22 with the reduction gear set 4. Specifically, the reduction gear set 4 includes a driving gear 41, after the upper cover 2 is covered, the driving gear 41 is directly engaged with the driving gear 22, so that the driving gear 41 is located at the opening 112 of the installation cavity 11, when shielding is required, the shielding portion 312 rotates to shield the upper opening 112 of the driving gear 41, thereby closing the installation cavity 11, and when the driving gear 41 needs to be opened and the driving gear 22 is engaged, the shielding portion 312 rotates to enable a space on the side of the shielding main member 311 without the shielding portion 312 to rotate to the opening 112, thereby opening the opening 112 of the installation cavity 11. In order to allow the shielding portion 312 to rotate around the circumference of the driving gear 41 to open or close the mounting chamber 11, a coupling hole for coupling a rotation shaft of the driving gear 41 is provided in the shielding main member 311, so that the shielding plate 31 is pivotally coupled to the gear cover 111 at the side of the mounting chamber 11, and the shielding plate 31 is rotated around the axis 411 of the driving gear 41 to open or close the mounting chamber 11.

It will be appreciated that when the shutter 31 is rotated about the axis 411 of the pinion 41 to open the housing 11, interference with other components inside the main body 1 should be avoided during its rotation. In this embodiment, the mounting cavity 11 is an arc structure adapted to the reduction gear set 4, so that the structure of the gear set 4 mounted in the mounting cavity 11 is compact, the opening 112 is an arc coaxial with the driving gear 41, and the same shielding portion 312 is coaxial with the driving gear 41 and has a radius just larger than that of the arc of the opening 112, so that the shielding portion can just completely shield the opening 112 at the limit position. Since the arc segment of the opening 112 is small, the shielding portion 312 does not abut against the side walls of the other gear sets 4 in the path of the rotation opening around the axis 411 of the driving gear 41, thereby preventing interference. Similarly, the elastic member mounting groove 12 is also an arc-shaped mounting groove 12 concentrically arranged with the driving gear 41, so that the protrusion 313 does not interfere with the downward movement along the mounting groove 12 during the rotation of the shutter 31.

Referring to fig. 2, the extending portion 314 of the shielding plate 31 partially or completely shields the mounting groove 12 of the elastic member 32, and the elastic member 32 is disposed between the extending portion 314 and the mounting groove 12 to prevent the elastic member 32 from being separated from the mounting groove 12. It will be appreciated that when the resilient member 32 is pressed by the protrusion 313, a resilient force is generated, and during the compression process, due to the compression of the length of the resilient member 32, a shearing force is generated to cause the resilient member 32 to be laterally separated, and if there is no extension 314 to abut against the resilient member 32, the resilient member 32 is easily laterally separated from the mounting groove 12.

Referring to fig. 1, 2 and 5, when the upper cover 2 is opened, the shielding plate 31 will rotate to close the mounting cavity 11 under the action of the elastic member 32, but since the elastic force will always abut against the protrusion 313 to make the protrusion 313 have a tendency to rotate, a limiting structure 8 is required to be provided for limiting the rotation angle of the shielding plate 31 when closing the mounting cavity 11, so that the shielding part 312 does not rotate after completely closing the opening 112. The limiting structure 8 comprises a first limiting part 81 arranged on the shielding sheet 31 and a limiting rib 82 arranged on the main body 1. When the shielding plate 31 rotates to the extent that the first limiting portion 81 abuts against the limiting rib 82, the shielding portion 312 just completely covers the opening 112, and can close the mounting cavity 11, which is the optimal angle for the rotation of the shielding plate 31. Of course, the position and the manner of implementing the limit are various and are not limited to the position and the manner in the embodiment. An avoiding hole 13 is formed above the main body 1, and when the shielding piece 31 rotates until the first limiting portion 81 abuts against the limiting rib 82, the convex portion 313 can be placed in the avoiding hole 13. When the upper cover 2 is covered, the trigger part 23 can also abut against the stress part 315 through the avoiding hole 13 and the stress part 315 to apply pressure to the stress part 315 so as to enable the shielding piece 31 to rotate to open the installation cavity 11, and when the upper cover 2 is completely covered, the trigger part 23 always abuts against the shielding piece 31 through the avoiding hole 13, so that the installation cavity 11 can be completely opened, and the elastic piece 32 can be prevented from resetting. When the shutter 31 rotates, the protrusion 313 also rotates around the axis 411 of the driving gear 41 and enters the mounting groove to press the elastic member 32 to make the shutter 31 have elastic force, and when the top cover is opened, the external force on the force-receiving portion 315 disappears, and the elastic force makes the shutter 31 rotate in the opposite direction to close the mounting groove.

Referring to fig. 1, 5 and 6, the rear end of the upper cover 2 is rotatably pivoted to the main body 1, the trigger part 23 is disposed at the front end of the upper cover 2, the upper cover 2 is provided with a connecting frame 6, the connecting frame 6 is used for mounting the printing roller 21 and the driving gear 22, the connecting frame 6 is further provided with a cutting part 61 for cutting printing paper, the cutting part 61 is disposed at the front end of the printing roller 21, the printing paper is transported out by the printing roller 21 after being printed, and after being printed, the printing paper needs to be cut by the saw teeth on the cutting part 61 because the printing paper of the previous piece is connected with the printing paper of the next piece. In the present embodiment, the trigger 23 is provided on the connecting frame 6 and is integrally formed with the connecting frame 6, and since the strength of the connecting frame 6 is higher than that of other members, it contributes to improving the strength of the trigger 23. Be equipped with trip structure 7 on upper cover 2, after upper cover 2 lid closed, trip structure 7 can catch on main part 1 and prevent the rotation of upper cover 2, pins upper cover 2. The upper cover 2 is locked to keep the triggering part 23 always abutted against the force-bearing part 315 of the shielding sheet 31 when the upper cover 2 is closed, so that the meshing of the driving gear 22 and the driving gear 41 of the printer is ensured in the printing process. Still be equipped with the button 9 that is used for controlling card hook structure 7 on upper cover 2, unblock card hook structure 7 through button 9 to open upper cover 2, button 9 control card hook structure 7 belongs to conventional technology, and no longer the repeated description herein.

The shielding mechanism 3 comprises the shielding piece 31 and the elastic piece 32, and the shielding or opening is completed through the matching of the shielding piece 31 and the triggering part 23 of the upper cover 2, so that the structure is simple, the number of parts is small, the error generated by linkage is reduced, the production efficiency of products is effectively improved, and the cost of the products is reduced.

In other embodiments, the shielding mechanism can be controlled by a manual mechanism or an induction mode to close or open the opening of the installation cavity when the upper cover is opened or closed, and the same shielding effect can be achieved.

The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention.

Claims

1. The utility model provides a flip printer, includes main part (1) and upper cover (2), upper cover (2) are equipped with drive printing roller (21) pivoted drive gear (22), be equipped with on main part (1) and be used for reduction gear installation (11) of reduction gear group (4) installation and give print roller (21) provide motor (5) of power, installation cavity (11) orientation corresponding position of drive gear (22) is located there is opening (112), drive gear (22) pass through opening (112) with gear group (4) meshing, its characterized in that still includes and shelters from mechanism (3), shelter from mechanism (3) and be in upper cover (2) can close after opening (112).

2. The flip printer according to claim 1, wherein the shutter mechanism (3) includes a shutter piece (31) for opening or closing the opening (112) and an elastic member (32) for restoring the shutter piece (31).

3. The flip printer according to claim 2, wherein the upper cover (2) is provided with a trigger portion (23), the upper cover (2) is covered with the main body (1), and the trigger portion (23) rotates the shielding piece (31) of the shielding mechanism (3) to open to engage the driving gear (22) with the reduction gear set (4).

4. A flip printer according to claim 3, wherein said reduction gear set (4) comprises a driving gear (41), said driving gear (41) being directly meshed with said driving gear (22), said shutter (31) being rotated about an axis (411) of said driving gear (41) to open or close said opening (112).

5. The flip printer according to claim 3, wherein the main body (1) is provided with an arc-shaped elastic member mounting groove (12), the shielding plate (31) is provided with an extending portion (314) for shielding part or all of the mounting groove (12), and the elastic member (32) is disposed between the extending portion (314) and the mounting groove (12).

6. The flip printer according to any one of claims 3 to 5, wherein the shielding plate (31) is provided with a force receiving portion (315) engaged with the triggering portion (23), and when the upper cover (2) is covered on the main body (1), the triggering portion (23) applies pressure to the force receiving portion (315) to rotate the shielding plate (31) to open the opening (112).

7. The flip printer according to claim 2, further comprising a limiting structure (8), wherein the limiting structure (8) is used for limiting the rotation angle of the shielding plate (31) when the mounting cavity (11) is closed.

8. The flip printer according to claim 7, wherein the limiting structure (8) comprises a first limiting portion (81) disposed on the shielding plate (31) and a limiting rib (82) disposed on the main body (1).

9. A flip printer according to claim 3, wherein the rear end of the upper cover (2) is rotatably pivoted to the main body (1), and the trigger part (23) is provided at the front end of the upper cover (2).

10. The printer of claim 9, wherein the cover (2) comprises a connecting frame (6), a cutting portion (61) for cutting printing paper is disposed on the connecting frame (6), and the trigger portion (23) is disposed on the connecting frame (6) and is integrally formed with the connecting frame (6).