JP3244324U - portable label printer - Google Patents

Abstract

The present invention provides a portable label printer whose size is further reduced. [Solution] A portable label printer includes a top cover 1, a middle shell 2, a bottom shell 3, a paper bin 31, a paper running channel, a rubber roller, a drive motor 32, a battery 35, an RFID induction coil 311, a circuit board, and a gear set. 34, the paper bin includes a paper stopper for fixing the label paper in the width direction, a battery is provided below the rubber roller and the drive motor, and a circuit board is provided on one side of the paper bin and the paper running channel. and parallel to the paper stopper of the paper bin, the RFID induction coil is provided on the other side of the paper bin, and the gear set is provided on the other side of the paper travel channel. [Selection diagram] Figure 3

Description

(Related application)
This application claims the priority of the Chinese patent application with application number 202223273471.9 and the name of the device "portable label printer" filed with the Chinese Patent Office on December 2, 2022, and all contents thereof are Incorporated into this application by reference.

TECHNICAL FIELD This application belongs to the technical field of label printing, and specifically relates to a portable label printer.

There are many types of printers, and they are divided into percussion printers and non-percussion printers, depending on whether the printing element has a percussion action. Depending on the structure of printed characters, printers can be divided into full-form printers and dot-matrix character printers. Depending on how the characters are arranged on the paper, they can be divided into string printers and line printers. In the trend of smart mobile office, portable label printer has gradually become one of the important research directions of the industry. Portable label printers have the advantage of being compact and easy to carry, and are widely used in supermarkets, offices, etc. Existing label printers are constantly shrinking in size to increase portability.

Existing label printers typically include a top cover, a bottom shell, a paper bin, a cover opening/closing mechanism, and a cutter lock assembly that are connected, and a battery and a circuit board are provided on each side of the paper bin. Such an arrangement cannot meet the further miniaturization requirements of some users, due to the size limitations of the hardware modules and mechanical structure inside the label printer, the existing portable label printer size is usually more than 40mm wide. There is a drawback.

In view of one or more of the above-mentioned shortcomings and improvement needs of the prior art, the present application provides a portable label printer that can further reduce the size of the portable label printer through a rational layout of hardware modules and mechanical structure. I will provide a.

To achieve the above objective, this application provides a portable label printer, which includes a top cover, middle shell, bottom shell, paper bin, paper running channel, rubber roller, drive motor, battery, RFID induction coil, circuit board. , a gear set, the paper bin includes a paper stopper for fixing the label paper in the width direction of the label paper, the top cover closes the upper part of the middle shell, and the bottom shell covers the lower part of the middle shell. a paper outlet is provided on the outer wall of the middle shell; the paper bin is provided between the bottom shell and the middle shell; the paper running channel is provided between the paper bin outlet and the paper outlet; The roller and the drive motor are both disposed below the paper running channel, the battery is disposed below the rubber roller and the drive motor, and the circuit board is disposed on one side of the paper bin and the paper running channel. is provided parallel to the paper stopper of the paper bin, the RFID induction coil is provided on the other side of the paper bin, the gear set is provided on the other side of the paper running channel, and the drive motor is provided on the other side of the paper travel channel. The gear set is connected to a gear set shaft, and the gear set drives the rubber roller to rotate.

Preferably, the portable label printer further includes a cover opening/closing mechanism, one end of the cover opening/closing mechanism being provided within the bottom shell, and the other end of the cover opening/closing mechanism protruding from a side wall of the bottom shell, The cover opening/closing mechanism is composed of a handle lever, a limiter, a spring set, a snap, and a pull rod, the limiter is provided on the side of one end of the handle lever, the limiter is perpendicular to the handle lever, and the limiter is perpendicular to the handle lever. one end remote from the handle lever is an inclined surface, the pull rod is provided at one end of the handle lever, the pull rod is perpendicular to the handle lever, and one end of the pull rod remote from the handle lever is an inclined surface. and the other end of the spring set is connected to the snap.

Preferably, the spring set includes a main tension spring, a first tension spring, a second tension spring and a connecting ring, one end of the main tension spring is connected to the pull rod, and the other end of the main tension spring is connected to the connecting ring. connected, one end of the first tension spring is connected to the connection ring, the other end of the first tension spring is connected to one side of the snap, and one end of the second tension spring is connected to the connection ring. , the other end of the second tension spring is connected to the other side of the snap.

Preferably, an operating lever is provided at one end of the handle lever remote from the limiter, a middle point of the operating lever is connected to the handle lever, and the operating lever is perpendicular to the handle lever.

Preferably, a support lever and a restriction ring are provided below the handle lever, the restriction ring is fixed to the top of the support lever, and the handle lever passes through the restriction ring and is perpendicular to the support lever.

Preferably, the portable label printer further comprises a cutter lock assembly, one end of the cutter lock assembly passing through the top end of the top cover, and the other end of the cutter lock assembly disposed within the bottom shell, and the cutter lock assembly passing through the top end of the top cover, and the other end of the cutter lock assembly passing through the top end of the top cover, and the other end of the cutter lock assembly passing through the top end of the top cover, and the other end of the cutter lock assembly passing through the top end of the top cover, and the other end of the cutter lock assembly passing through the top end of the top cover, and the other end of the cutter lock assembly passing through the top end of the top cover, and the other end of the cutter lock assembly passing through the top end of the top cover, and the other end of the cutter lock assembly passing through the top end of the top cover, and the other end of the cutter lock assembly passing through the top end of the top cover. The locking assembly includes a locking mechanism, the locking mechanism includes a bottom plate and a locking plate, the locking plate is provided on the bottom plate, the locking plate is perpendicular to the bottom plate, and a spring connecting plate is provided on a side of the locking plate. wherein the spring connection plate is perpendicular to the lock plate, and a biasing spring is provided below one end of the spring connection plate remote from the lock plate, and the bias spring is perpendicular to the spring connection plate. A rotation hole is provided in the lock plate, and the rotation hole passes through the lock plate.

Preferably, the cutter lock assembly further includes a cutter mechanism and a rotating lever, the cutter mechanism includes a cutter key, and a cutter key restriction plate is provided below the cutter key, and the cutter key restriction plate is attached to the cutter key. a placing plate is provided below the cutter key limiting plate; the placing plate is perpendicular to the cutter key limiting plate; a cutter is provided on one side of the placing plate; The back is fixed to the cutter key restriction plate, the cutter is parallel to the placement plate, and a sliding plate is provided on the other side of the placement plate, and the sliding plate is perpendicular to the placement plate. The sliding plate is slidably connected to the mounting plate, a first reset spring is provided at an upper end of the sliding plate, and one end of the first reset spring is fixedly connected to the cutter key restriction plate. the other end of the first reset spring is fixedly connected to the sliding plate, a second reset spring is provided below the sliding plate, and one end of the second reset spring is fixedly connected to the sliding plate. The rotating lever passes through the rotating hole, both ends of the rotating lever are fixed to the top cover, and the top end of the rubber roller is brought into contact with the bottom end of the bottom plate.
Preferably, the circuit board includes a first region and a second region, the first region and the second region have different heights, and the battery is disposed below the rubber roller, the drive motor, and the second region. The sum of the height of the second region and the height of the battery is smaller than the height of the first region.

Preferably, the gear set includes a first gear, a second gear and an intermediate gear set, the first gear is connected to the drive motor, the second gear is connected to the rubber roller, and the first gear is connected to the drive motor, and the second gear is connected to the rubber roller. is driven to rotate the second gear via the intermediate gear set, the intermediate gear set is composed of a number of double gears, and the plane where the paper stopper is located is set as a projection reference plane, and the projection A projection of the first gear or the second gear on the reference plane is included within a projection of the dual gear on the projection reference plane.

Preferably, a through hole is provided in the middle shell at a position close to the paper outlet, an engagement hook is provided in the top cover, and a microswitch is provided below the through hole, and the microswitch is provided on the circuit board. When the top cover is in a closed state, the engagement hook passes through the through hole and triggers the microswitch.

Preferably, the sum of the width of the paper bin, the thickness of the RFID induction coil, and the thickness of the circuit board is smaller than the width of the middle shell.
Preferably, the width of the cell is smaller than the width of the middle shell.
Preferably, the portable label printer further includes a speaker installed below the paper bin.

Preferably, the lock mechanism is provided below the cutter mechanism, and the lock plate is provided directly below the cutter key restriction plate.
The above preferred technical features can be combined as long as they do not contradict each other.

The portable label printer of the present application has the following beneficial effects.
By improving the internal mechanical structure and hardware module layout of the portable label printer, the battery is specifically placed below the rubber roller and drive motor, and the circuit board is placed on one side of the paper bin and paper running channel. By installing the RFID induction coil on the other side of the paper bin and the gear set on the other side of the paper running channel, the location installation is reasonable, the overall structure is compact, and the volume of the portable label printer is reduced. It is also smaller and more convenient to carry.

By realizing the cover opening/closing function of the label printer by the cover opening/closing mechanism, the drawback that the label printer is inconvenient to assemble and use due to too many assemblies of the label printer is solved.

The cutter lock assembly has a rotating lever that can be attached to the label printer, the locking mechanism rotates about the rotating lever, the locking mechanism is attached below the cutter mechanism, and when the top cover of the label printer is opened, the cutter lock assembly can be attached to the label printer. The force spring pushes the spring connection plate upward, the upper end of the locking mechanism is pressed against the cutter key restriction plate of the cutter mechanism, the cutter key can no longer push the cutter downward, and the label printer is locked after the cover is opened. This further solves the problem that the cutter may stretch due to incorrect operation of the cutter key, causing injury to the user.

1 is a schematic diagram showing the overall structure of a portable label printer according to the prior art; FIG. 1 is a schematic diagram showing the overall structure of a portable label printer according to an embodiment of the present application. FIG. 2 is a front view of an internal submodule of a portable label printer according to an embodiment of the present application; FIG. 3 is a rear view of an internal sub-module of a portable label printer according to an embodiment of the present application; FIG. 3 is a three-dimensional view of an internal submodule of a portable label printer according to an embodiment of the present application; FIG. 2 is a schematic diagram showing a first region and a second region of a circuit board in a portable label printer according to an embodiment of the present application. 1 is a schematic diagram showing the structure of a gear set in a portable label printer according to an embodiment of the present application; FIG. FIG. 3 is a schematic diagram showing the internal installation of a cover opening/closing mechanism in a portable label printer according to an embodiment of the present application. FIG. 3 is a schematic diagram illustrating the external installation of a cover opening/closing mechanism in a portable label printer according to an embodiment of the present application. FIG. 2 is a partially enlarged view of a cover opening/closing mechanism in a portable label printer according to an embodiment of the present application. 1 is a schematic diagram illustrating the installation of a cutter lock assembly in a portable label printer according to an embodiment of the present application; FIG. FIG. 2 is a schematic diagram showing the structure of a locking mechanism in a portable label printer according to an embodiment of the present application. 1 is a schematic diagram showing the structure of a cutter mechanism in a portable label printer according to an embodiment of the present application; FIG. FIG. 3 is a schematic diagram illustrating a closing structure of a cutter lock assembly in a portable label printer according to an embodiment of the present application;

1 Top cover 11 Engagement hook 12 Micro switch 2 Middle shell 21 Paper running channel 22 Rubber roller 23 Paper outlet 24 Through hole 3 Bottom shell 31 Paper bin 311 RFID induction coil 312 Paper stopper 32 Drive motor 33 Circuit board 331 First area 332 Second area 34 Gear set 341 First gear 342 Second gear 343 Intermediate gear set 344 Double gear 35 Battery 36 Speaker 4 Cover opening/closing mechanism 41 Handle lever 411 Operation lever 412 Support lever 413 Limiting ring 42 Limiting base 43 Spring set 431 Main tension Spring 432 First tension spring 433 Second tension spring 434 Connection ring 44 Snap 45 Pull rod 5 Cutter lock assembly 51 Lock mechanism 511 Bottom plate 512 Lock plate 513 Rotation hole 514 Spring connection plate 52 Biasing spring 53 Cutter mechanism 531 Cutter key 532 Cutter key Limiting plate 533 Mounting plate 534 Cutter 535 Sliding plate 536 First reset spring 537 Second reset spring 54 Rotation lever

In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be described in more detail below in conjunction with the accompanying drawings and examples. It is to be understood that the specific examples described herein are merely an interpretation of the present application and are not intended to limit the present application. Furthermore, technical features related to each embodiment of the present application described below can be combined as long as they do not contradict each other.

In the description of this application, the terms "first" and "second" are used for descriptive purposes only and do not indicate or imply the relative importance or number of such technical features. Accordingly, features defined by the terms "first" and "second" express or imply inclusion of at least one such feature. In the description of this application, "plurality" means at least two, e.g., two, three, etc., unless explicitly stated and limited otherwise.

In this application, terms such as "mounting", "coupling", "connecting", "fixing" etc. should be understood broadly, and unless otherwise explicitly stated and limited, terms such as "mounting", "coupling", "connecting", "fixing" etc. may be connected removably or integrally, may be mechanically connected, may be electrically connected, may be directly coupled, or may be connected via an intermediate medium. It may be an indirect connection, or it may be an internal communication between two devices or an interaction relationship between two devices. Those skilled in the art may understand the specific meanings of the above terms in this application depending on the specific situation.

In this application, unless explicitly stated and limited, a first feature being "on" or "below" a second feature may refer to direct contact of the first and second features or via an intermediate medium. It may also be an indirect contact between the first and second features. Furthermore, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or diagonally above the second feature, or that the first feature is It may be higher in the horizontal direction than the second feature. The first feature being "below", "beneath" and "on the underside" of the second feature means that the first feature may be directly below or diagonally below the second feature, or the first feature may be located "beneath" the second feature. It may be lower in the horizontal direction.

As shown in FIGS. 1-7, in some embodiments, the portable label printer includes a top cover 1, a middle shell 2, a bottom shell 3, a paper bin 31, a paper running channel 21, a rubber roller 22, a drive motor 32, an RFID induction coil 311, a circuit board 33, a gear set 34, and a battery 35, and the paper bin 31 includes a paper stopper 312 for fixing the label paper in the width direction of the label paper.

In this embodiment, the top cover 1 is provided above the middle shell 2, and the top cover 1 has an open/closed state. The bottom shell 3 is provided below the middle shell 2, a paper outlet 23 is provided on the outer wall of the middle shell 2, a paper bin 31 is provided between the bottom shell 3 and the middle shell 2, and the paper running channel 21 is connected to the paper bin 31. and the paper outlet 23. The rubber roller 22 and the drive motor 32 are both located below the paper running channel 21, and the battery 35 is provided below the rubber roller 22 and the drive motor 32, instead of being provided on both sides of the paper bin in the prior art. . The circuit board 33 is provided on one side of the paper bin 31 and the paper running channel 21, the circuit board 33 is parallel to the paper stopper 312, and the RFID induction coil 311 is provided on the other side of the paper bin 31, and the RFID induction coil 311 is provided on the other side of the paper bin 31. can guide the label sheets in the paper bin 31. A gear set 34 is provided on the other side of the paper running channel 21 , a drive motor 32 is connected to the gear set 34 , and the gear set 34 is rotationally connected to the rubber roller 22 .

In the structural design of the label printer, the battery 35 is not provided on the side of the paper bin 31, but below the rubber roller 22 and drive motor 32, and other mechanical structures or reasonable layout of hardware modules make it possible to carry portable labels. The volume of the printer can be further reduced. As a result of repeated experimental measurements, the width of a portable label printer can be reduced to 38 mm.
As shown in FIGS. 1 to 10, based on the above technical solutions, the present application can be improved as follows.

In one embodiment, the sum of the width of the paper bin 31, the thickness of the RFID induction coil 311, and the thickness of the circuit board 33 is smaller than the width of the middle shell 2. The width of the battery 35 is smaller than the width of the middle shell 2. The portable label printer further includes a speaker 36 provided below the paper bin.

In this embodiment, the paper bin 31, RFID induction coil 311, circuit board 33, and battery 35 are compactly attached to the middle shell 2, so that the volume of the portable label printer can be reduced. At the same time, since the speaker is provided below the paper bin 31, the size of the speaker can be increased. For example, by making the width of the speaker 36 the same as the width of the paper bin 31, a compact label printer can be realized. It is possible to secure the power required for the speaker 36 and, in turn, ensure the sound quality required for the speaker 36.

In one embodiment, the circuit board 33 includes a first region 331 and a second region 332, the first region 331 and the second region 332 have different heights, and the battery 35 is connected to the rubber roller 22, the drive motor 32 and the second region 332. The second region 332 is provided below the region 332, and the sum of the height of the second region 332 and the height of the battery 35 is smaller than the height of the first region 331.
In this embodiment, by providing the battery 35 below the rubber roller 22, the drive motor 32, and the second area 332, the size of the battery 35 is not affected by the thickness of the circuit board 33, and the battery 35 can be larger in size with the same volume. A battery 35 may be included to meet the power requirements of the portable label printer.

In one embodiment, the gear set 34 includes a first gear 341 , a second gear 342 and an intermediate gear set 343 , where the first gear 341 is connected to the drive motor 32 and the second gear 342 is connected to the rubber roller 22 . , the first gear 341 drives the second gear 342 to rotate through an intermediate gear set 343, the intermediate gear set 343 includes a number of double gears 344, and the plane where the paper stopper 312 is located is a projection reference plane. The projection of the first gear 341 or the second gear 342 on the projection reference plane is included in the projection of the double gear 344 on the projection reference plane.

In this embodiment, the double gear 344 refers to a coaxial large gear and a small gear, the two coaxial gears rotate synchronously, one gear receives transmission from the upper stage, and the other gear receives transmission from the lower stage. used for driving. The projection of the first gear 341 or the second gear 342 on the projection reference plane is included in the projection of the double gear 344 on the projection reference plane. This means that it is provided within the projection on the projection reference plane of the large gear. In this way, the first gear 341 or the second gear 342 do not need to occupy additional space, allowing the size of the portable label printer to be further reduced.

In one embodiment, a through hole 24 is provided at a position close to the paper outlet 23 of the middle shell 2, an engagement hook 11 is provided on the top cover 1, a micro switch 12 is provided below the through hole 24, and a micro switch 12 is provided below the through hole 24. Switch 12 is electrically connected to circuit board 33 .

In this embodiment, when the top cover 1 is in the closed state, the engagement hook 11 passes through the through hole 24 and triggers the microswitch 12, thereby detecting whether the top cover 1 is opened or closed.

In one embodiment, the portable label printer further includes a cover opening/closing mechanism 4, one end of the cover opening/closing mechanism 4 is provided in the bottom shell 3, and the other end of the cover opening/closing mechanism 4 passes through a side wall of the bottom shell 3. , the cover opening/closing mechanism 4 is composed of a handle lever 41, a limiter 42, a spring set 43, a snap 44, and a pull rod 45. , one end of the limiter 42 remote from the handle lever 41 is an inclined surface, a pull rod 45 is provided at one end of the handle lever 41, the pull rod 45 is perpendicular to the handle lever 41, and the pull rod 45 is separated from the handle lever 41. One remote end is connected to one end of a spring set 43, and the other end of the spring set 43 is connected to a snap 44.

Here, the spring set 43 consists of a main tension spring 431, a first tension spring 432, a second tension spring 433, and a connecting ring 434, one end of the main tension spring 431 is connected to the pull rod 45, and the other end of the main tension spring 431 is connected to the pull rod 45. One end of the first tension spring 432 is connected to the connection ring 434, the other end of the first tension spring 432 is connected to one side of the snap 44, and one end of the second tension spring 433 is connected to the connection ring 434. 434 , and the other end of the second tension spring 433 is connected to the other side of the snap 44 .

Here, an operating lever 411 is provided at one end of the handle lever 41 remote from the limiter 42 , the middle point of the operating lever 411 is connected to the handle lever 41 , and the operating lever 411 is perpendicular to the handle lever 41 .

A support lever 412 and a restriction ring 413 are provided below the handle lever 41, the restriction ring 413 is fixed to the top of the support lever 412, and the handle lever 41 passes through the restriction ring 413 and is perpendicular to the support lever 412.
In this embodiment, the cover opening/closing mechanism 4 can be applied in a label printer equipped with a cutter 534 and a cutter key 531, and by adjusting the handle lever 41 with the operating lever 411, the handle lever 41 is rotated and the limiter is rotated. The limiter 42 is driven to rotate until the inclined surface of the cutter 534 comes into pressure contact with the cutter key 531. At this time, the cutter 534 is completely fixed, and the cutter 534 can be prevented from damaging printing consumables during printing. can. By pulling the handle lever 41 outward with the operation lever 411, the handle lever 41 moves the pull rod 45 outward, the pull rod 45 pulls the main tension spring 40 of the spring set 43, and the main tension spring 40 is pulled through the connecting ring 43. The first tension spring 41 and the second tension spring 42 are moved, the first tension spring 41 and the second tension spring 42 simultaneously pull the snap 44, the snap 44 is loosened, and the cover opening/closing function of the label printer is realized. In addition, the support lever 7 and the restriction ring 8 below the handle lever 1 assist the operating lever 411 and the handle lever 41, improving the stability of the overall structure of the cover opening/closing mechanism 4, and making it possible to open and close the cover more smoothly. can.

At the same time, such a cover opening and closing mechanism can be applied to label printers, and multiple functions can be realized with the same parts, and the label printer has too many assemblies, making it difficult to assemble the label printer. The disadvantage of poor usability can be overcome.

As shown in FIGS. 1 to 14, based on the above technical solutions, the present application can be improved as follows.

In one embodiment, the portable label printer further comprises a cutter lock assembly 5, one end of the cutter lock assembly 5 passes through the top end of the top cover 1, and the other end of the cutter lock assembly 5 is provided in the bottom shell 3. , the cutter lock assembly 5 includes a locking mechanism 51, the locking mechanism 51 includes a bottom plate 511 and a lock plate 512, the lock plate 512 is provided on the bottom plate 511, the lock plate 512 is perpendicular to the bottom plate 511, and the lock plate 512 is perpendicular to the bottom plate 511; A spring connection plate 514 is provided on the side, the spring connection plate 514 is perpendicular to the lock plate 512 , and a biasing spring 52 is provided below one end of the spring connection plate 514 remote from the lock plate 512 . is perpendicular to the spring connection plate 514 , a rotation hole 513 is provided in the lock plate 512 , and the rotation hole 513 passes through the lock plate 512 .

The cutter lock assembly 5 further includes a cutter mechanism 53 and a rotation lever 54, the cutter mechanism 53 includes a cutter key 531, a cutter key restriction plate 532 is provided below the cutter key 531, and the cutter key restriction plate 532 is connected to the cutter key 531. A placing plate 533 is provided below the cutter key limiting plate 532, the placing plate 533 is perpendicular to the cutter key limiting plate 532, and a cutter 534 is provided on one side of the placing plate 533. The back of the cutter 534 is fixed to the cutter key restriction plate 532, the cutter 534 is parallel to the mounting plate 533, and a sliding plate 535 is provided on the other side of the mounting plate 533. 533, a sliding plate 535 is slidably connected to the mounting plate 533, a first reset spring 536 is provided at the upper end of the sliding plate 535, and one end of the first reset spring 536 is connected to the cutter key limiter. The other end of the first reset spring 536 is fixedly connected to the plate 532, the other end of the first reset spring 536 is fixedly connected to the sliding plate 535, a second reset spring 537 is provided below the sliding plate 535, and one end of the second reset spring 537 is connected to the sliding plate 535. It is fixedly connected to the moving plate 535, the locking mechanism 51 is provided below the cutter mechanism 53, the locking plate 512 is provided directly below the cutter key restriction plate 532, the rotating lever 54 passes through the rotating hole 513, and the rotating lever 54 Both ends of the rubber roller 22 are fixed on the top cover 1, and the top end of the rubber roller 22 is brought into contact with the bottom end of the bottom plate 511. Both the cutter lock assembly 5 and the cutter mechanism 53 are provided on the top cover 1 of the label printer.

In this embodiment, the cutter lock assembly 5 is mounted on the label printer via a rotary lever 54, the locking mechanism rotates around the rotary lever 54, and the locking mechanism 51 is mounted below the cutter mechanism 53 and the label printer When the top cover 1 is opened, the biasing spring 52 pushes the spring connection plate 514 upward, the upper end of the lock mechanism 51 is pressed against the cutter key restriction plate 532 of the cutter mechanism 53, and the cutter key 531 pushes the cutter 534 downward. This solves the problem that the cutter 534 may extend due to an erroneous operation of the cutter key 531 after the cover of the label printer is opened and the user may be easily injured.

When the top cover 1 is closed, the rubber roller 22 of the label printer pushes up the bottom plate 511 of the lock mechanism 51, and the lock plate 512 separates from the cutter key restriction plate 532 of the cutter mechanism 53, and at this time, the cutter key 531 is pushed downward. When pressed, the cutter key restriction plate 532 moves the cutter 534 downward, and at the same time, the first reset spring 536 presses the sliding plate 535 and the second reset spring 536, causing the cutter 534 to move downward and cut the label paper. After cutting, the cutter key 531 is released, the deformation of the second reset spring 537 is recovered, and the cutter key 531 and the cutter 534 are reset. The cutter mechanism 53 can be locked even when the cover of the label printer is open without affecting the operation of the cutter mechanism 532, further preventing the cutter 534 from causing injury to the user due to erroneous operation of the cutter key 531, which is disadvantageous in the prior art. can be overcome.

Those skilled in the art will appreciate that the above are only preferred embodiments of this application and are not intended to limit this application, and that modifications, equivalent substitutions and equivalents may be made without departing from the spirit and principles of this application. It can be easily understood that all improvements fall within the protection scope of the present application.

Claims (10)

The paper bin is equipped with a top cover, a middle shell, a bottom shell, a paper bin, a paper running channel, a rubber roller, a drive motor, a battery, an RFID induction coil, a circuit board, and a gear set, and the paper bin carries the label paper in the width direction of the label paper. The top cover closes the upper part of the middle shell, the bottom shell is provided below the middle shell, a paper outlet is provided on the outer wall of the middle shell, and the paper bin is provided with a paper stopper for fixing the paper. disposed between the bottom shell and the middle shell, the paper running channel is disposed between the paper bin outlet and the paper outlet, the rubber roller and the drive motor are both located below the paper running channel, and the paper running channel is disposed between the paper bin outlet and the paper outlet; The battery is disposed below the rubber roller and the drive motor, the circuit board is disposed on one side of the paper bin and the paper running channel, parallel to the paper stopper of the paper bin, and the circuit board is disposed below the paper bin and the paper running channel, and the circuit board is disposed below the paper bin and the paper running channel, and is parallel to the paper stopper of the paper bin. is provided on the other side of the paper bin, the gear set is provided on the other side of the paper running channel, the drive motor is connected to the gear set shaft, and the gear set rotates the rubber roller. A portable label printer characterized by: The portable label printer further includes a cover opening/closing mechanism, one end of the cover opening/closing mechanism is provided in the bottom shell, and the other end of the cover opening/closing mechanism extends outside from a side wall of the bottom shell, and the cover opening/closing mechanism is provided with a cover opening/closing mechanism. The mechanism is composed of a handle lever, a limiter, a spring set, a snap and a pull rod, the limiter is provided on the side of one end of the handle lever, the limiter is perpendicular to the handle lever, and the limiter is perpendicular to the handle lever, and the limiter is perpendicular to the handle lever. One end remote from the handle lever is an inclined surface, the pull rod is provided at one end of the handle lever, the pull rod is perpendicular to the handle lever, and one end of the pull rod remote from the handle lever is connected to one end of the spring set. The portable label printer according to claim 1, wherein the other end of the spring set is connected to the snap. The spring set includes a main tension spring, a first tension spring, a second tension spring, and a connecting ring, one end of the main tension spring is connected to the pull rod, and the other end of the main tension spring is connected to the connecting ring. , one end of the first tension spring is connected to the connection ring, the other end of the first tension spring is connected to one side of the snap, one end of the second tension spring is connected to the connection ring, and the second tension spring is connected to one side of the snap. The portable label printer according to claim 2, wherein the other end of the second tension spring is connected to the other side of the snap. A control lever is provided at one end of the handle lever remote from the restriction base, a middle point of the control lever is connected to the handle lever, and the control lever is perpendicular to the handle lever. The portable label printer according to item 2. A support lever and a restriction ring are provided below the handle lever, the restriction ring is fixed to the top of the support lever, and the handle lever passes through the restriction ring and is perpendicular to the support lever. The portable label printer according to claim 2. The portable label printer further includes a cutter lock assembly, one end of the cutter lock assembly passes through the top end of the top cover, and the other end of the cutter lock assembly is provided in the bottom shell, and the cutter lock assembly includes a locking mechanism, the locking mechanism includes a bottom plate and a locking plate, the locking plate is provided on the bottom plate, the locking plate is perpendicular to the bottom plate, and a spring connection plate is provided on a side of the locking plate. , the spring connection plate is perpendicular to the lock plate, a biasing spring is provided below one end of the spring connection plate remote from the lock plate, and the bias spring is perpendicular to the spring connection plate; The portable label printer according to claim 2, wherein the lock plate is provided with a rotation hole, and the rotation hole passes through the lock plate. The cutter lock assembly further includes a cutter mechanism and a rotating lever, the cutter mechanism including a cutter key, a cutter key restriction plate provided below the cutter key, and the cutter key restriction plate parallel to the cutter key. A placing plate is provided below the cutter key limiting plate, the placing plate is perpendicular to the cutter key limiting plate, a cutter is provided on one side of the placing plate, and the back of the cutter is fixed to the cutter key restriction plate, the cutter is parallel to the placement plate, a sliding plate is provided on the other side of the placement plate, and the sliding plate is perpendicular to the placement plate; The sliding plate is slidably connected to the mounting plate, a first reset spring is provided at an upper end of the sliding plate, and one end of the first reset spring is fixedly connected to the cutter key restriction plate; The other end of the first reset spring is fixedly connected to the sliding plate, a second reset spring is provided below the sliding plate, and one end of the second reset spring is fixedly connected to the sliding plate, 7. The rotary lever passes through the rotary hole, both ends of the rotary lever are fixed to the top cover, and the top end of the rubber roller is brought into contact with the bottom end of the bottom plate. Portable label printer listed. The circuit board includes a first region and a second region, the first region and the second region have different heights, and the battery is provided below the rubber roller, the drive motor, and the second region, The portable label printer according to claim 1, wherein the sum of the height of the second area and the height of the battery is smaller than the height of the first area. The gear set includes a first gear, a second gear and an intermediate gear set, the first gear is connected to the drive motor, the second gear is connected to the rubber roller, and the first gear is connected to the intermediate gear. The second gear is driven to rotate through a gear set, the intermediate gear set is composed of a number of double gears, and the plane where the paper stopper is located is set as a projection reference plane, and the plane on which the paper stopper is located is set as a projection reference plane, and The portable label printer according to claim 1, wherein the projection of the first gear or the second gear is included within the projection of the dual gear on the projection reference plane. A through hole is provided in the middle shell at a position close to the paper outlet, an engagement hook is provided in the top cover, a microswitch is provided below the through hole, and the microswitch electrically connects the circuit board. The portable label printer according to claim 1, wherein the engaging hook passes through the through hole and triggers the microswitch when the top cover is in a closed state.