An embedded miniature thermal transfer printer

Abstract

The invention relates to the field of thermal transfer technology, and discloses an embedded micro thermal transfer printer, wherein the base is connected to the rear end of the ribbon bin by a fixed shaft, and the ribbon bin can be opened to replace the ribbon by flipping back 90 degrees, and two impellers are arranged on the side of the ribbon bracket, and the shaft end of one impeller is meshed with a rewinding gear, a transmission gear d and a transmission gear c in sequence, and the shaft end of the other impeller is provided with a clutch plate, and the clutch plate is fixed by a pressure spring; a roller shaft is arranged in the frame, and the roller shaft end is sleeved with a roller shaft gear, and the roller shaft is driven by a stepper motor, and the ribbon shaft is driven at the same time, and a paper channel module and a cutter motor module are arranged in the frame; the ribbon bin and the base are fixed by a hook rod and a metal hook. The invention is a 3-inch embedded micro thermal transfer printer capable of printing thick paper, and can print various types of consumables, and an automatic cutter is designed inside, which can cut ticket paper after 0.3 mm, and the whole machine has a small appearance, and is suitable for embedded installation in cabinet equipment, and a maximum of 300 meters of ribbon can be installed.

Description

Technical Field

[0001] The invention relates to the technical field of thermal transfer, and more particularly to an embedded micro thermal transfer printer. Background Art

[0002] The text and images printed by the thermal transfer printer can be preserved for a long time, will not fade, and will not change color or deform due to high temperature. Thermal transfer technology uses a special carbon ribbon to transfer the carbon coating on the carbon ribbon to paper or other types of materials by heating. With the maturity and popularization of technology, more and more thermal transfer products are appearing in people's field of vision.

[0003] However, most thermal transfer printers on the market are 4 inches or larger and are designed for label printing. There is a demand gap in the market for thermal transfer printers below 4 inches, which needs to be supplemented urgently.

[0004] Therefore, in order to solve the above problems, providing an embedded micro thermal transfer printer is an issue that technical personnel in this field urgently need to solve. Summary of the invention

[0005] In view of this, the present invention provides an embedded micro thermal transfer printer, which effectively solves the above problems.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An embedded micro thermal transfer printer, which consists of two modules: a base and a carbon ribbon bin. The base and the rear end of the carbon ribbon bin are connected by a fixed shaft. The carbon ribbon bin can be opened to replace the carbon ribbon by flipping back 90 degrees. The carbon ribbon bin includes a carbon ribbon holder, a wave wheel and a carbon ribbon shaft. Two wave wheels are arranged horizontally on the side of the carbon ribbon holder. The tail end of the wave wheel is connected to the carbon ribbon shaft. One of the wave wheel shaft ends is meshed with a rewinding gear, a transmission gear d and a transmission gear c in sequence. The other wave wheel shaft end is provided with a clutch plate, and the clutch plate is fixed with a pressure spring; the base includes a frame, a stepper Motor, roller, cutter motor module and paper channel module, the roller is horizontally installed inside the frame, the roller shaft end is sleeved with a roller gear, the roller is driven by a stepper motor, and the carbon ribbon shaft is driven by transmission gear a, transmission gear b, transmission gear c and transmission gear d. A paper channel module is arranged on the top of the frame, and the cutter motor module is fixed to the outside of the stepper motor by bolts; a hook rod is arranged at the front end of the carbon ribbon bracket, and a tension spring is arranged at the open end of the hook rod, and metal hooks are arranged at both ends of the base, and the carbon ribbon bin and the base are fixed by the hook rod and the metal hook.

[0008] Preferably, in the above-mentioned embedded micro thermal transfer printer, the embedded micro thermal transfer printer is provided with a paper inlet on the back, a paper outlet on the front, a dip switch, a printer interface and a key switch indicator light, and a main control board is installed at the bottom of the base.

[0009] Preferably, in the above-mentioned embedded micro thermal transfer printer, the transmission relationship of the stepper motor is as follows: the stepper motor rotates counterclockwise, driving the transmission gear 1 to rotate clockwise, the transmission gear a simultaneously drives the roller gear and the transmission gear b to rotate counterclockwise, the transmission gear b drives the transmission gear c to rotate clockwise, the transmission gear c drives the transmission gear d to rotate counterclockwise, the transmission gear d drives the rewind gear to rotate clockwise, and the rewind gear drives the impeller to rotate clockwise to synchronously recycle the waste carbon ribbon.

[0010] Preferably, in the above-mentioned embedded micro thermal transfer printer, a clutch plate is fixed to one of the tail ends of the impeller via a pressure spring, and the clutch plate is connected to the carbon ribbon holder by winding the pressure spring.

[0011] Preferably, in the above-mentioned embedded micro thermal transfer printer, the back of the paper outlet is fixed to the front cover by bolts, and a movable blade and a fixed blade are provided on the back of the front cover. The movable blade and the fixed blade are fixed by positioning pins and compression springs, and a baffle is installed on the side of the movable blade. The baffle is fixed together with the fixed blade and is equipped with a paper sensing sensor.

[0012] It can be seen from the above technical solution that compared with the prior art, the present invention has the following benefits: the present invention is a 3-inch embedded micro thermal transfer printer that can print thick paper and can print various types of consumables. It is internally designed with an automatic cutter that can cut ticket paper with a thickness of 0.3 mm. The whole machine has a small appearance and is suitable for embedded installation in cabinet equipment. It can install a maximum of 300 meters of carbon ribbon; it fills the gap in the market for micro thermal transfer printers. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0014] Figure 1 The accompanying drawing is a schematic diagram of the structure of the present invention;

[0015] Figure 2 The accompanying drawing is a schematic diagram of the external structure of the present invention;

[0016] Figure 3 The accompanying drawing is a schematic diagram of the internal driving relationship of the present invention;

[0017] Figure 4 The accompanying drawing is a schematic diagram of the opening and closing principle of the carbon ribbon bin of the present invention;

[0018] Figure 5The accompanying drawing is a schematic diagram of the structure of the whole machine of the present invention;

[0019] Figure 6 The accompanying drawing is a schematic diagram of the base structure of the present invention;

[0020] Figure 7 The accompanying drawing is a schematic diagram of the structure of the carbon ribbon bin of the present invention;

[0021] Figure 8 The accompanying drawing is a schematic diagram of the front cover cutter structure of the present invention.

[0022] In the figure: 1, base; 2, ribbon compartment; 3, fixed axis; 11, paper outlet; 12, printer interface; 13, dip switch; 14, paper inlet; 16, main control board; 17, bottom shell; 18, front cover; 19, side cover; 191, ribbon; 192, ticket paper; 151, frame; 152, stepper motor; 153, roller shaft; 154, shaft sleeve; 155, roller shaft gear; 156, cutter motor module; 157, paper channel module; 158, transmission gear b; 159, transmission gear a; 181, front cover; 1811, front cover spring; 182, paper induction sensor; 183, compression spring; 184, moving blade; 185, fixed blade; 186, positioning pin; 187, baffle; 188, paper outlet;

[0023] 21. Hook rod; 22. Hook rod tension spring; 23. Pulsator; 24. Ribbon shaft hook; 25. Ribbon shaft; 26. Print head; 27. Button switch indicator light; 20. Ribbon bracket; 231. Rewinding gear;

[0024] 232. Gasket; 234. Spring sleeve; 235. Ribbon sensor switch; 236. Pressure spring; 237. Clutch plate; 261. Print head compression spring; 262. Positioning shaft; 263. Print head adapter plate; 264. Print head cover; 271. Ribbon compartment side cover; 272. Button indicator light board; 273. Transmission gear c; 274. Transmission gear d. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Please see attached Figure 1-8, is an embedded micro thermal transfer printer disclosed in the present invention, which comprises two modules, a base 1 and a carbon ribbon bin 2. The base 1 and the rear end of the carbon ribbon bin 2 are connected by a fixed shaft 3. The carbon ribbon bin 2 can be opened to replace the carbon ribbon by flipping back 90 degrees. The carbon ribbon bin 2 comprises a carbon ribbon holder 20, a wave wheel 23 and a carbon ribbon shaft 25. Two wave wheels 23 are arranged horizontally on the side of the carbon ribbon holder 20. The tail end of the wave wheel 23 is connected to the carbon ribbon shaft 25. One of the wave wheel 23 shaft ends is engaged in turn. The base 1 comprises a rewinding gear 231, a transmission gear d274 and a transmission gear c273. A clutch plate 237 is provided at the shaft end of the other impeller 23. The clutch plate 237 is fixed with a pressure spring 236. The base 1 comprises a frame 151, a stepping motor 152, a roller shaft 153, a cutter motor module 156 and a paper channel module 157. A roller shaft 153 is horizontally installed inside the frame 151. A roller shaft gear 155 is sleeved at the shaft end of the roller shaft 153. The roller shaft 153 is driven by the stepping motor 152. Driven, the carbon ribbon shaft 25 is driven by transmission gear a159, transmission gear b158, transmission gear c273 and transmission gear d274 at the same time, a paper channel module 157 is provided on the top of the frame 151, and a cutter motor module 156 is fixed to the outside of the stepper motor 152 by bolts; a hook rod 21 is provided at the front end of the carbon ribbon bracket 20, and a tension spring 22 is provided at the open end of the hook rod 21, and metal hooks are provided at both ends of the base 1, and the carbon ribbon bin 2 and the base 1 are fixed by the hook rod 21 and the metal hook.

[0027] Preferably, in the above-mentioned embedded micro thermal transfer printer, the embedded micro thermal transfer printer is provided with a paper inlet 14 on the back, a paper outlet 11 on the front, and is equipped with a dip switch 13, a printer interface 12 and a key switch indicator light 27, and a main control board 16 is installed at the bottom of the base 1.

[0028] Preferably, in the above-mentioned embedded micro thermal transfer printer, the transmission relationship of the stepper motor 152 is as follows: the stepper motor 152 rotates counterclockwise, driving the transmission gear a159 to rotate clockwise, the transmission gear a159 simultaneously drives the roller gear 155 and the transmission gear b158 to rotate counterclockwise, the transmission gear b158 drives the transmission gear c273 to rotate clockwise, the transmission gear c273 drives the transmission gear d274 to rotate counterclockwise, the transmission gear d274 drives the rewind gear 231 to rotate clockwise, and the rewind gear 231 drives the impeller 23 to rotate clockwise to synchronously recycle the waste carbon ribbon.

[0029] Preferably, in the above-mentioned embedded micro thermal transfer printer, a clutch plate 237 is fixed to one tail end of the impeller 23 via a pressure spring 236 , and the clutch plate 237 is connected to the carbon ribbon holder 20 by winding with the pressure spring 236 .

[0030] Preferably, in the above-mentioned embedded micro thermal transfer printer, the back of the paper outlet 11 is fixed to the front cover 18 by bolts, and a movable blade 184 and a fixed blade 185 are provided on the back of the front cover 18. The movable blade 184 and the fixed blade 185 are fixed by a positioning pin 186 and a compression spring 183. A baffle 187 is installed on the side of the movable blade 184, and the baffle 187 is fixed together with the fixed blade 185, and is equipped with a paper sensing sensor 182.

[0031] The specific installation details of this embedded micro thermal transfer printer are as follows Figure 1-8 As shown, it should be noted that the printer consists of two main modules, a base 1 and a ribbon bin 2. The rear end is connected by a fixed shaft 3 and can be flipped back 90 degrees to open and install and replace the ribbon. A hook rod 21 is provided at the front end of the ribbon holder 20, and a tension spring 22 is provided at the open end of the hook rod 21 to ensure that the hook rod 21 is reset in time after opening. The hook rod 21 adopts the lever principle and is installed at the front end of the ribbon holder 20. The ribbon holder 20 is provided with a support point, which is the fulcrum of the lever principle of the hook rod 21. Metal hooks are provided at both ends of the base 1. When the ribbon holder 20 and the base 1 are closed, the hook rod 21 will be firmly fixed by the hooks at both ends of the base 1. Since the paper output speed is fixed, the speed of the ribbon rewinding becomes faster as the diameter of the rewinding shaft becomes larger and larger. The impeller 23 and the rewinding gear 231 are designed to be softly connected through a pressure spring 236. When the impeller 23 drives the ribbon too fast, the resistance of the tightened ribbon will reduce the speed of the ribbon recovery, always ensuring synchronization with the paper output speed of the roller 153.

[0032] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0033] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An embedded micro thermal transfer printer, which consists of two modules: a base and a ribbon bin. The base and the rear end of the ribbon bin are connected by a fixed shaft. The ribbon bin can be opened to replace the ribbon by turning back 90 degrees. The characteristics are: The carbon ribbon bin comprises a carbon ribbon holder, a pulsator and a carbon ribbon shaft. Two pulsators are arranged horizontally on the side of the carbon ribbon holder. The tail end of the pulsator is connected to the carbon ribbon shaft. One of the pulsator shaft ends is meshed with a rewinding gear, a transmission gear d and a transmission gear c in sequence, and the other pulsator shaft end is provided with a clutch plate, which is fixed with a pressure spring; the base comprises a frame, a stepper motor, a roller shaft, a cutter motor module and a paper channel module. A roller shaft is horizontally installed inside the frame, and a roller shaft gear is sleeved on the end of the roller shaft. The roller shaft is driven by the stepper motor and drives the carbon ribbon shaft through transmission gears a, b, c and d at the same time. A paper channel module is provided on the top of the frame, and a cutter motor module is fixed to the outside of the stepper motor by bolts; a hook rod is provided at the front end of the carbon ribbon holder, and a tension spring is provided at the open end of the hook rod. Metal hooks are provided at both ends of the base, and the carbon ribbon bin and the base are fixed by the hook rod and the metal hook.

2. The embedded micro thermal transfer printer according to claim 1, characterized in that: The embedded micro thermal transfer printer is provided with a paper inlet at the back and a paper outlet at the front, and is equipped with a dial switch, a printer interface and a key switch indicator light, and a main control board is arranged at the bottom of the base.

3. The embedded micro thermal transfer printer according to claim 1, characterized in that: The transmission relationship of the stepper motor is as follows: the stepper motor rotates counterclockwise, driving the transmission gear to rotate clockwise, the transmission gear a simultaneously drives the roller gear and the transmission gear b to rotate counterclockwise, the transmission gear b drives the transmission gear c to rotate clockwise, the transmission gear c drives the transmission gear d to rotate counterclockwise, the transmission gear d drives the rewind gear to rotate clockwise, and the rewind gear drives the impeller to rotate clockwise to synchronously recycle the waste carbon ribbon.

4. The embedded micro thermal transfer printer according to claim 1, characterized in that: A clutch plate is fixed to one tail end of the impeller via a pressure spring, and the clutch plate is connected to the carbon ribbon bracket by winding the pressure spring.

5. The embedded micro thermal transfer printer according to claim 2, characterized in that: The back of the paper outlet is fixed to the front cover by bolts. A movable blade and a fixed blade are arranged on the back of the front cover. The movable blade and the fixed blade are fixed by positioning pins and compression springs. A baffle is installed on the side of the movable blade. The baffle is fixed together with the fixed blade and is equipped with a paper sensing sensor.

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