CN211918100U

CN211918100U - Handheld mobile printer

Info

Publication number: CN211918100U
Application number: CN201922458545.8U
Authority: CN
Inventors: 占红武
Original assignee: Hangzhou Youyin Information Technology Co ltd; Zhejiang University of Technology ZJUT
Current assignee: Hangzhou Youyin Information Technology Co ltd; Zhejiang University of Technology ZJUT
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-11-13
Anticipated expiration: 2029-12-31

Abstract

The handheld mobile printer comprises a base and a shell, wherein a printing head is arranged on the base; the base is provided with a sliding chute, and the printing head is inserted into the sliding chute of the base and is arranged on the base; an optical axis is fixed at the upper edge of the front end of the base, a shaft sleeve of the flip cover is movably sleeved outside the optical axis, and a circuit board, an S-shaped cavity cover and a coding unit are fixed in the inner cavity of the flip cover; the coding unit comprises a roller and a coder, a roller seat is fixed on the cavity cover, a roller rotating shaft is fixed on the roller seat, and the roller and the coder are sequentially installed on the roller rotating shaft. The invention adopts an inclined single narrow wheel structure, reduces the volume and the weight of the printer and is convenient to carry.

Description

Handheld mobile printer

Technical Field

The invention relates to a handheld printing device, in particular to a handheld mobile printer.

Background

The hand-held mobile printer is a printer which can directly print characters, patterns, tattoos and the like on various media, such as paper, plates, wallboards, skin and the like; and can be connected with mobile phone and PC through bluetooth or wifi, can print out the characters or design pattern edited by mobile phone and computer.

At present, the existing hand-held mobile machines at home and abroad generally have the problems of large equipment, high manufacturing cost, complex structure, inconvenience in carrying, high printing consumable material cost, easiness in drying and blocking of a printing nozzle, complex man-machine interaction operation and the like.

Disclosure of Invention

For solving the problem of the prior art, the handheld mobile printer is provided, and has the advantages of compact structure, lower cost, convenience in carrying, simplicity and convenience in maintenance and higher automation degree.

In order to achieve the purpose, the invention adopts the following technical scheme:

the handheld mobile printer comprises a base and a shell, wherein a printing head is arranged on the base; the base is provided with a sliding chute, and the printing head is inserted into the sliding chute of the base and is arranged on the base;

an optical axis is fixed at the upper edge of the front end of the base, a shaft sleeve of the flip cover is movably sleeved outside the optical axis, and a circuit board, an S-shaped cavity cover and a coding unit are fixed in the inner cavity of the flip cover; the coding unit comprises a roller and a coder, a roller seat is fixed on the cavity cover, a roller rotating shaft is fixed on the roller seat, and the roller and the coder are sequentially installed on the roller rotating shaft.

The handheld mobile printer is provided with the printing head moisturizing cover, the printing head moisturizing cover is movably clamped and sleeved at the bottom of the base, and a sealing ring is arranged at the position, corresponding to the printing head, of the printing head moisturizing cover and is abutted against the outer edge of the printing head.

In the handheld mobile printer, the roller rotating shaft is obliquely fixed on the roller seat.

Set up the pit on beating the printer head surface, correspond this pit department at the chamber lid and set for a lug, establish the falcon structure of card between flip and base to when turning over flip down, make the location lug of chamber lid contradict with the pit of beating the printer head top surface, realize beating the location of printer head, flip passes through card falcon structure reciprocal anchorage with the base.

In order to enable the positioning lug and the printing head pit to be in elastic fit, the positioning lug can be replaced by a positioning marble with elastic and telescopic property, the positioning marble comprises a convex column with a cavity arranged therein, a spring and a marble are arranged in the cavity, the marble is arranged in the cavity, and the beginning of the cavity is smaller than the outer diameter of the marble, so that the marble can slide up and down in the cavity, the positioning is enabled to realize flexible fit, and mechanical parts are protected.

The encoder is a universal part and consists of an encoder bracket and an encoder coded disc, and the rotating speed and the angle of the encoder coded disc can be fed back to the control circuit in an electric signal mode. The roller and the paper rub to drive the roller rotating shaft to rotate, the roller rotating shaft drives the encoder code disc to rotate, information obtained through the encoder is calculated, information such as the moving distance and speed of the printer on the paper is obtained, and the printer is matched with a printing driving circuit to finally enable the printing content to be accurately printed on the paper.

The print head is connected to a print head contact strip, which is connected to a circuit board to control the printing operation of the print head. Data stored on the printer circuit board are connected with terminals such as a mobile phone and a PC through Bluetooth or wifi, printing information is edited through the mobile phone or the PC terminal, then the data are transmitted to the printer, the data are printed and output, a power supply for driving the printer is arranged on the circuit board, and the power supply usually adopts a battery. The invention realizes wireless printing through wireless data transmission.

The invention adopts a single narrow wheel, and the idler wheel is arranged at the tail end of the printing head, so that the structure is different from the structure that the double-wide idler wheel frame of the traditional handheld mobile printer is arranged at the left side and the right side of the printing head, and the size of the printer in the width direction is greatly reduced.

The roller component can be installed in an inclined mode, the axis of the roller rotating shaft is inclined at an included angle with the bottom surface of the printer, namely the paper surface, and the occupied space in the height direction is reduced while the mechanical performance is guaranteed. If the roller rotating shaft is horizontally and transversely installed, the diameter of the coding wheel is slightly smaller than the outer diameter of the roller and does not collide with the paper surface, and the acquisition of position information can also be completed, and only the mechanical structure can be larger than the inclined installation.

When printing, can support the front end of printer on the guiding rule, make the printer along rectilinear movement, guarantee printing quality.

The printing head moisturizing cover is a protection device for the printing head, when the printing head is not printed, the printing head moisturizing cover is closed, and the sealing ring is sealed to play a moisturizing and dustproof role in the printing head.

When printing is needed, the printing head moisturizing cover is removed, the terminal data are transmitted into the printer, and the handheld printer moves against the printing reference scale to perform printing.

If a proper ink box is selected and the overall dimension is reasonably set, the mouse can be sized, and the user experience is well improved.

The invention has small volume, light weight, reasonable structure, high automation degree, portability and low requirement on printing media, and solves the defects of large volume, incapability of portability and high requirement on printing media of the conventional printer.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic diagram of the flip cover operation of the present invention.

Fig. 3 is an exploded view of the present invention.

FIG. 4 is a diagram illustrating a structure of an encoding unit according to the present invention.

FIG. 5 is a schematic cross-sectional view of the present invention.

Fig. 6-7 are schematic diagrams of a print job of the present invention.

FIG. 8 is a schematic diagram of the operation of the printer of the present invention.

Labeled as: the device comprises a base 1, an optical axis 11, an indicator light 12, a flip cover 13, a circuit board 14, a cavity cover 15, a positioning marble 16, a printing head 2, a contact at the front end of the printing head 21, a printing head contact strip 22, a printing head moisturizing cover 23, a coding unit 3, a positioning marble 31, a roller seat 32, a roller 33, a coding disc 34 and a roller rotating shaft 35.

Detailed Description

Referring to the drawings, the handheld mobile printer comprises a base and a shell, wherein a printing head is arranged on the base; a horizontal sliding groove is formed in the base, and the horizontal sliding groove, into which the printing head is inserted, is arranged on the base; an optical axis is fixed at the upper edge of the front end of the base, a shaft sleeve of the flip cover is movably sleeved outside the optical axis, and a circuit board, an S-shaped cavity cover and a coding unit are fixed in the inner cavity of the flip cover; the coding unit comprises a roller and a coder, a roller seat is fixed on the cavity cover, a roller rotating shaft is fixed on the roller seat in an inclined manner of 20 degrees, and the roller and the coder are sequentially installed on the roller rotating shaft; the printing head moisturizing cover is movably clamped and sleeved at the bottom of the base, and a sealing ring is arranged at the position, corresponding to the printing head, of the printing head moisturizing cover and is abutted against the outer edge of the printing head.

The turnover cover is turned upwards along the optical axis, the printing head can be installed or taken out along the sliding chute of the base, the printing head contact strip and the printing head are standard accessories and are communicated through contact, and the printing head contact strip is connected with a device of a circuit board installed in the turnover cover; pits are formed in the top surface and the rear end surface of the printing head, positioning marbles are fixed at positions, corresponding to the pits, of the cavity cover, and a clamping tenon structure is arranged between the turnover cover and the base; after the printing head is installed, the flip cover is closed, the positioning marble of the cavity cover is abutted to the pit on the top surface of the printing head, the positioning of the printing head is achieved, the contact at the front end of the printing head is communicated with the flip cover on the contact belt of the printing head, and the flip cover and the base are mutually fixed through clamping tenon structures.

Referring to the attached drawings, a mobile phone end is wirelessly connected with a printer, a document on the mobile phone is transmitted to the printer, the printer is placed on a paper surface and keeps moving linearly from top to bottom, an encoder is driven to work by friction of a roller and the paper surface, the moving position and the moving speed of the printer are obtained through the encoder, a printing head is driven by a printing driving program to print, the document is printed at a proper position of the paper surface, and printing is finished.

The electronic control part is a common technology that can be realized by those skilled in the art, and is not described herein again.

Claims

1. The handheld mobile printer comprises a base and a shell, wherein a printing head is arranged on the base; the base is provided with a sliding chute, and the printing head is inserted into the sliding chute of the base and is arranged on the base;

the optical axis is fixed on the upper edge of the front end of the base, the shaft sleeve of the flip cover is movably sleeved outside the optical axis, and the circuit board, the S-shaped cavity cover and the coding unit are fixed in the inner cavity of the flip cover; the coding unit comprises a roller and a coder, a roller seat is fixed on the cavity cover, a roller rotating shaft is fixed on the roller seat, and the roller and the coder are sequentially installed on the roller rotating shaft.

2. The hand-held mobile printer of claim 1, wherein a printhead cover is removably mounted on the base, and a sealing ring is disposed on the printhead cover to abut the outer edge of the printhead.

3. The hand-held mobile printer of claim 1, wherein the roller rotation shaft is fixed diagonally to the roller mount.