CN211075214U

CN211075214U - Thermal transfer printer

Info

Publication number: CN211075214U
Application number: CN201921680032.5U
Authority: CN
Inventors: 王东海; 唐国初; 杨远兰
Original assignee: Hunan Dingyi Zhiyuan Technology Development Co Ltd
Current assignee: Hunan Dingyi Zhiyuan Technology Development Co Ltd
Priority date: 2019-10-09
Filing date: 2019-10-09
Publication date: 2020-07-24
Anticipated expiration: 2029-10-09

Abstract

The utility model relates to a thermal transfer printer, including installing in the frame put paper subassembly and a plurality of printhead subassembly, beat the one end book of printing paper put on the paper subassembly, still including putting paper rubber roll subassembly and collection rubber roll subassembly, beat the other end of printing paper and pass through in proper order put paper rubber roll subassembly, a plurality of printhead subassemblies with collection rubber roll subassembly, the slew velocity of collection rubber roll subassembly is greater than put the slew velocity of paper rubber roll subassembly. The utility model has the advantages that: the printing precision is improved by additionally arranging the paper placing rubber roller assembly capable of actively rotating, the paper collecting rubber roller assembly and the paper placing rubber roller assembly have rotating speed difference, backward pulling force is formed on printing paper, the process of advancing printing paper is stable, and the printing precision is improved.

Description

Thermal transfer printer

Technical Field

The utility model relates to a printer field, concretely relates to thermal transfer printer.

Background

The thermal transfer technique is a product of a combination of the principle of heat transfer and the hot stamp (hot stamp) technique, and among thermal transfer barcode printers manufactured according to this technique, the most common is the "fusion type" thermal transfer printer. It is the most common industrial printer, which uses polyester film as the base band of the ribbon, and the surface layer is coated with waxy solid ink. When printing, the microprocessor controls the heating body in the thermal (sensitive) printing head to heat, so that the hot-melt ink layer on the film ribbon is melted and then transferred to the common paper to form a pattern which can be preserved for a long time. Because the film color tape overcomes the mesh structure of the common fabric color tape of the dot matrix printer, the printed pattern is rich in physical feeling and is much like a printed matter. Thermal transfer printing is the process of transferring ink from a ribbon media to paper or film using heat and pressure to transfer the ink to the paper as it passes through the print head and platen of a printer.

Thermal transfer printer among the prior art moves printing paper through the delivery of paper winding and moves, perhaps only has to drive the motor that beats printing paper and remove at the play paper end after printing the completion, beats printing paper and is not steady at the in-process of marcing, causes and prints the precision not high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a thermal transfer printer that the printing precision is high is provided.

The utility model provides an above-mentioned technical problem's technical scheme as follows: the thermal transfer printer comprises a rack, a paper placing assembly and a plurality of printing head assemblies, wherein the paper placing assembly and the printing head assemblies are installed on the rack, one end of printing paper is rolled on the paper placing assembly, the thermal transfer printer further comprises a paper placing rubber roller assembly and a paper collecting rubber roller assembly, the other end of the printing paper sequentially passes through the paper placing rubber roller assembly, the printing head assemblies and the paper collecting rubber roller assembly, and the rotating speed of the paper collecting rubber roller assembly is greater than that of the paper placing rubber roller assembly.

The utility model has the advantages that: present thermal transfer printer's printing precision is not high, beats printer head and beat printer paper and improve the printing precision through compressing tightly usually, the utility model discloses an add can initiatively the pivoted put paper rubber roll subassembly and improve the printing precision, receive paper rubber roll subassembly and put paper rubber roll subassembly and have a rotational speed difference, form a backward pulling force to the printing paper, beat printer paper like this and more steady at the process of advancing, and then improved the printing precision.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Further, the paper placing rubber roller assembly comprises a paper placing driving rubber roller, a paper placing driven rubber roller and a paper placing rubber roller motor, the paper placing driving rubber roller and the paper placing driven rubber roller are arranged in parallel and are rotatably connected with the frame, the printing paper clamp is arranged between the paper placing driving rubber roller and the paper placing driven rubber roller, and the paper placing rubber roller motor is fixedly connected with the frame and is in transmission connection with one end of the paper placing driving rubber roller.

The beneficial effect of adopting the further scheme is that: put paper rubber roll motor and drive and put paper initiative rubber roll and rotate, beat the paper clamp and locate put paper initiative rubber roll with put and increase frictional force between the driven rubber roll of paper, put the driven rubber roll of paper and rotate along with beating the removal of beating paper, frictional force is big, put paper effectual, can realize putting the accurate control of paper speed.

The paper placing rubber roller assembly further comprises a paper placing adjusting mechanism, two opposite side walls of the rack are provided with paper placing adjusting grooves, the paper placing driven rubber rollers penetrate through the paper placing adjusting grooves and are rotatably connected with the paper placing adjusting mechanism, and the paper placing adjusting mechanism is fixedly connected with the rack and drives the paper placing driven rubber rollers to be close to or far away from the paper placing driving rubber rollers along the paper placing adjusting grooves.

The beneficial effect of adopting the further scheme is that: the paper placing adjusting mechanism can adjust the distance between the paper placing driving rubber roller and the paper placing driven rubber roller, is convenient for paper replacement and maintenance, and can be suitable for printing paper with different thicknesses.

Furthermore, the paper collection rubber roller component comprises a paper collection driving rubber roller, a paper collection driven rubber roller and a paper collection rubber roller motor, the paper collection driving rubber roller and the paper collection driven rubber roller are arranged in parallel and are connected with the frame in a rotating mode, the printing paper clamp is arranged between the paper collection driving rubber roller and the paper collection driven rubber roller, and the paper collection rubber roller motor is fixedly connected with the frame and is in transmission connection with one end of the paper collection driving rubber roller.

The beneficial effect of adopting the further scheme is that: the paper collecting rubber roller motor drives the paper collecting driving rubber roller to rotate, the printing paper is clamped between the paper collecting driving rubber roller and the paper collecting driven rubber roller to increase friction force, the paper collecting driven rubber roller rotates along with the movement of the printing paper, the friction force is large, the paper collecting effect is good, and the accurate control of the paper collecting speed can be realized.

Furthermore, the paper collecting rubber roller assembly further comprises a paper collecting adjusting mechanism, two opposite side walls of the rack are provided with paper collecting adjusting grooves, the paper collecting driven rubber roller penetrates through the paper collecting adjusting grooves and is rotatably connected with the paper collecting adjusting mechanism, and the paper collecting adjusting mechanism is fixedly connected with the rack and drives the paper collecting driven rubber roller to approach or leave the paper collecting driving rubber roller along the paper collecting adjusting grooves.

The beneficial effect of adopting the further scheme is that: the paper collecting adjusting mechanism can adjust the distance between the paper collecting driving rubber roller and the paper collecting driven rubber roller, is convenient for paper replacement and maintenance, and can be suitable for printing paper with different thicknesses.

The printing paper clamp is arranged between the printing head rubber roller assembly and the printing head assembly.

The beneficial effect of adopting the further scheme is that: it moves to beat printer head rubber roll subassembly and drive printing paper in beating printer head subassembly below, further improves the printing precision, avoids card paper or beats the paper fold.

Furthermore, the printing head rubber roller component comprises a printing head rubber roller and a printing head rubber roller motor, the printing head rubber roller is rotatably connected with the rack, and the printing head rubber roller motor is fixedly connected with the rack and is in transmission connection with one end of the printing head rubber roller.

The beneficial effect of adopting the further scheme is that: the motor of the printing head rubber roller drives the printing head rubber roller to rotate.

Further, the printing head assembly comprises a printing head, a retractable color band assembly and a paper supporting assembly, and the retractable color band assembly and the paper supporting assembly are respectively and fixedly connected with the printing head.

The beneficial effect of adopting the further scheme is that: the receive and release typewriter ribbon subassembly of prior art installs in the frame of printer, beats printer head and can produce the vibration at the lift in-process, influences the printing precision and leads to missing printing. Because the existing motor for driving the color tape folding and unfolding component is arranged on the rack, one end of the color tape folding and unfolding component is in transmission connection with the motor, and a support shaft which penetrates through the color tape folding and unfolding component is usually required to be arranged on the rack, the color tape folding and unfolding component and the related structure are complex, the size is large, the weight is heavy, and the color tape folding and unfolding component cannot be arranged on a printing head. The utility model discloses to receive and release typewriter ribbon subassembly and prop the paper subassembly and be fixed in on the typewriter ribbon for the relative position between printer head and the typewriter ribbon is fixed accurate, can not produce the typewriter ribbon and beat the printer head separation and cause the phenomenon of missing printing, and the printing precision is high.

Further, receive and release the typewriter ribbon subassembly including receiving the typewriter ribbon subassembly, putting typewriter ribbon subassembly and typewriter ribbon, receive the typewriter ribbon subassembly with it puts typewriter ribbon subassembly fixed connection respectively in the both sides of beating printer head, the one end winding of typewriter ribbon is in receive the typewriter ribbon subassembly, the other end passes through the below of beating printer head and the winding is in put the typewriter ribbon subassembly.

The beneficial effect of adopting the further scheme is that: unused ribbon passes from within the payout ribbon assembly under the printhead to complete printing, and the ribbon is then retracted into the take-up ribbon assembly.

Further, receive and release the typewriter ribbon subassembly and still include fixed plate, dismouting board and spring bolt, the fixed plate with the one end fixed connection who beats printer head, the dismouting board passes through the spring bolt with the connection can be dismantled to the other end that beats printer head, receive the typewriter ribbon subassembly with it all sets up in to put the typewriter ribbon subassembly the fixed plate with between the dismouting board, receive the typewriter ribbon subassembly with the both ends of putting the typewriter ribbon subassembly are equallyd divide do not with the fixed plate with the connection can be dismantled to the dismouting board.

The beneficial effect of adopting the further scheme is that: receive the typewriter ribbon subassembly with it can dismantle to connect between fixed plate and dismouting board to put the typewriter ribbon subassembly, the dismouting board passes through spring bolt and beats printer head and be connected, when changing the typewriter ribbon, screws out a part with spring bolt, the dismouting board can outwards move the certain distance and with receive the typewriter ribbon subassembly with put the separation of typewriter ribbon subassembly, just can take off receive the typewriter ribbon subassembly with put the typewriter ribbon subassembly and changed the typewriter ribbon, compact structure, convenient operation.

Drawings

Fig. 1 is a three-dimensional view of a thermal transfer printer according to the present invention;

FIG. 2 is a rear view of a thermal transfer printer according to the present invention;

FIG. 3 is a front cross-sectional view of a thermal transfer printer according to the present invention;

Fig. 4 is a three-dimensional view of a printhead assembly of the present invention;

FIG. 5 is a front view of the printhead assembly of the present invention;

Fig. 6 is a rear view of the printhead assembly of the present invention;

3 fig. 3 7 3 is 3 a 3 top 3 cross 3- 3 sectional 3 view 3 a 3- 3 a 3 of 3 the 3 printhead 3 assembly 3 of 3 the 3 present 3 invention 3. 3

In the drawings, the components represented by the respective reference numerals are listed below:

1. A machine frame, a plurality of guide rails and a plurality of guide rails,

2. A paper placing component is arranged on the paper placing component,

3. The printing head component 301, the printing head 302, the ribbon collecting component 321, the ribbon collecting component 322, the ribbon discharging component 323, the ribbon 324, the fixing plate 325, the dismounting plate 326, the spring bolt 303, the paper supporting component 331, the paper supporting bracket 332, the paper supporting shaft 304, the ribbon collecting positioning shaft 305 and the ribbon discharging positioning shaft,

4. A printing paper is printed on the paper,

5. A paper placing rubber roller component 501, a paper placing driving rubber roller 502, a paper placing driven rubber roller 503, a paper placing rubber roller motor 504, a paper placing adjusting mechanism,

6. A paper collecting rubber roller component 601, a paper collecting driving rubber roller 602, a paper collecting driven rubber roller 603, a paper collecting rubber roller motor 604, a paper collecting adjusting mechanism,

7. A print head rubber roller component 701, a print head rubber roller 702, a print head rubber roller motor,

8. A paper twisting component 801, a paper twisting pressing roller 802, a paper twisting guide roller,

9. A cutting assembly.

Detailed Description

The principles and features of the present invention are described below, with the examples being given only for the purpose of illustration and not for the purpose of limiting the scope of the invention.

As shown in fig. 1 to 7, the present embodiment provides a thermal transfer printer, which includes a frame 1, and a paper feeding assembly 2 and a plurality of print head assemblies 3 mounted on the frame 1, wherein one end of a printing paper 4 is rolled on the paper feeding assembly 2, and further includes a paper feeding rubber roller assembly 5 and a paper collecting rubber roller assembly 6, wherein the other end of the printing paper 4 sequentially passes through the paper feeding rubber roller assembly 5, the plurality of print head assemblies 3 and the paper collecting rubber roller assembly 6, and a rotation speed of the paper collecting rubber roller assembly 6 is greater than a rotation speed of the paper feeding rubber roller assembly 5.

Specifically, it is preferable that the difference between the rotation speed of the paper collecting glue roller assembly 6 and the rotation speed of the paper releasing glue roller assembly 5 is five to seven ten-thousandths of the rotation speed of the paper releasing glue roller assembly 5.

Specifically, the number of the printing head assemblies 3 is three, and the three printing head assemblies 3 are sequentially arranged along the moving direction of the printing paper 4 and are respectively used for printing different colors.

Specifically, put paper subassembly 2 including with frame 1 one end upper portion rotate the paper axle of putting of being connected, beat one end book of printing paper 4 on putting the paper axle, put the paper axle and rotate under the drive of putting paper axle motor.

As a further scheme of this embodiment, as shown in fig. 2 and fig. 3, the paper placing rubber roller assembly 5 includes a paper placing driving rubber roller 501, a paper placing driven rubber roller 502, and a paper placing rubber roller motor 503, the paper placing driving rubber roller 501 and the paper placing driven rubber roller 502 are arranged in parallel and are both rotatably connected to the frame 1, the printing paper 4 is sandwiched between the paper placing driving rubber roller 501 and the paper placing driven rubber roller 502, and the paper placing rubber roller motor 503 is fixedly connected to the frame 1 and is in transmission connection with one end of the paper placing driving rubber roller 501.

Specifically, the paper placing driven rubber roller 502 is located right above the paper placing driving rubber roller 501, and both are arranged perpendicular to the advancing direction of the printing paper 4.

As a further scheme of this embodiment, as shown in fig. 2, the paper discharging rubber roller assembly 5 further includes a paper discharging adjusting mechanism 504, two opposite side walls of the rack 1 have paper discharging adjusting slots, the paper discharging driven rubber roller 502 passes through the paper discharging adjusting slots and is rotatably connected with the paper discharging adjusting mechanism 504, and the paper discharging adjusting mechanism 504 is fixedly connected with the rack 1 and drives the paper discharging driven rubber roller 502 to approach or leave the paper discharging driving rubber roller 501 along the paper discharging adjusting slots.

Specifically, the paper placing adjusting groove is a vertical strip-shaped groove. The paper feeding adjusting mechanism 504 comprises an adjusting motor, a lead screw and a slide block, wherein the adjusting motor drives the lead screw to rotate, the slide block is in threaded connection with the lead screw, and the lead screw rotates to drive the slide block to move linearly along the lead screw. The number of the paper placing adjusting mechanisms 504 is two, two ends of the paper placing driven rubber covered rollers 502 are respectively connected with two sliding blocks of the paper placing adjusting mechanisms 504 in a rotating mode through bearings, and the paper placing adjusting mechanisms 504 drive the paper placing driven rubber covered rollers 502 to vertically move and approach or keep away from the paper placing driving rubber covered rollers 501.

As a further scheme of this embodiment, the paper collecting rubber roller assembly 6 includes a paper collecting driving rubber roller 601, a paper collecting driven rubber roller 602, and a paper collecting rubber roller motor 603, the paper collecting driving rubber roller 601 and the paper collecting driven rubber roller 602 are disposed in parallel and are both rotatably connected to the frame 1, the printing paper 4 is sandwiched between the paper collecting driving rubber roller 601 and the paper collecting driven rubber roller 602, and the paper collecting rubber roller motor 603 is fixedly connected to the frame 1 and is in transmission connection with one end of the paper collecting driving rubber roller 601.

Specifically, the delivery driven rubber roller 602 is located right above the delivery driving rubber roller 601, and both are perpendicular to the advancing direction of the printing paper 4.

As a further scheme of this embodiment, the delivery rubber roller assembly 6 further includes a delivery adjusting mechanism 604, two opposite side walls of the frame 1 have delivery adjusting slots, the delivery driven rubber roller 602 passes through the delivery adjusting slots and is rotatably connected to the delivery adjusting mechanism 604, and the delivery adjusting mechanism 604 is fixedly connected to the frame 1 and drives the delivery driven rubber roller 602 to approach or leave the delivery driving rubber roller 601 along the delivery adjusting slots.

Specifically, the delivery adjusting groove is a vertical strip-shaped groove. The delivery adjustment mechanism 604 has the same structure as the delivery adjustment mechanism 504. The number of the paper collection adjusting mechanisms 604 is two, two ends of the paper collection driven rubber roller 602 are respectively connected with two sliding blocks of the paper collection adjusting mechanisms 604 through bearings in a rotating mode, and the paper collection adjusting mechanisms 604 drive the paper collection driven rubber roller 602 to vertically move and approach or keep away from the paper collection driving rubber roller 601.

As a further scheme of this embodiment, the printing apparatus further includes a plurality of printing head glue roller assemblies 7, the printing head glue roller assemblies 7 are connected to the frame 1 and are disposed below the printing head assemblies 3 in a one-to-one correspondence, and the printing paper 4 is sandwiched between the printing head glue roller assemblies 7 and the printing head assemblies 3.

Specifically, the print head rubber roller assembly 7 is rotatably connected with the frame 1 through a bearing.

As a further scheme of this embodiment, the print head rubber roller assembly 7 includes a print head rubber roller 701 and a print head rubber roller motor 702, the print head rubber roller 701 is rotatably connected to the frame 1, and the print head rubber roller motor 702 is fixedly connected to the frame 1 and is in transmission connection with one end of the print head rubber roller 701.

As a further scheme of this embodiment, as shown in fig. 4 to 7, the print head assembly 3 includes a print head 301, a ribbon take-up and pay-off assembly 302, and a paper supporting assembly 303, where the ribbon take-up and pay-off assembly 302 and the paper supporting assembly 303 are respectively fixedly connected to the print head 301.

As a further scheme of this embodiment, the ribbon retracting assembly 302 includes a ribbon retracting assembly 321, a ribbon releasing assembly 322, and a ribbon 323, the ribbon retracting assembly 321 and the ribbon releasing assembly 322 are respectively and fixedly connected to two sides of the print head 301, one end of the ribbon 323 is wound in the ribbon retracting assembly 321, and the other end passes through the lower side of the print head 301 and is wound in the ribbon releasing assembly 322.

Specifically, the long side of the print head 301 is perpendicular to the moving direction of the printer paper, as shown in fig. 5, the arrow below fig. 5 indicates the moving direction of the printer paper, the side of the print head 301 facing the paper feeding direction is the front side, and the side facing away from the paper feeding direction is the rear side, that is, in the direction shown in fig. 5, the left side is the front side of the print head 301, and the right side is the rear side of the print head 301. The ribbon take-up assembly 321 is located on the rear side of the printhead 301, and the ribbon take-off assembly 322 is located on the front side of the printhead 301.

Specifically, the long sides of the color receiving tape assembly 321 and the color discharging tape assembly 322 are perpendicular to the moving direction of the printing paper of the printer.

As a further scheme of this embodiment, receive and release ribbon assembly 302 still includes fixed plate 324, dismouting board 325 and spring bolt 326, fixed plate 324 with the one end fixed connection who beats printer head 301, dismouting board 325 passes through spring bolt 326 with the other end of beating printer head 301 can be dismantled and be connected, receive ribbon assembly 321 with it all sets up to put ribbon assembly 322 fixed plate 324 with between the dismouting board 325, receive ribbon assembly 321 with put the both ends of ribbon assembly 322 and equally divide respectively with fixed plate 324 with the dismantlement board 325 can be dismantled and be connected.

Specifically, the fixing plate 324 and the detaching plate 325 are disposed at both ends of the printing head 301 in the length direction, that is, at both sides of the printing paper moving direction.

Specifically, receive colored ribbon subassembly 321 with it connects to release colored ribbon subassembly 322 and can dismantle between fixed plate 324 and dismouting board 325, and dismouting board 325 passes through spring bolt 326 and is connected with beating printer head 301, spring bolt 326 includes bolt and spring, and the spring housing is established in the screw rod outside of bolt, and the screw rod of bolt passes dismouting board 325 and beats printer head 301's lateral wall threaded connection, the both ends of spring respectively with the bolt head and the butt of dismouting board 325 butt of bolt. Thus, when changing the ribbon, the spring bolt 326 is partially unscrewed, and the dismounting plate 325 can move outward a certain distance and be separated from the ribbon take-up assembly 321 and the ribbon release assembly 322, so that the ribbon take-up assembly 321 and the ribbon release assembly 322 can be removed and the ribbon 323 can be changed.

Specifically, as shown in fig. 5, the number of the spring bolts 326 is 4.

As a further scheme of this embodiment, as shown in fig. 7, the color collecting tape assembly 321 includes a color collecting tape shaft, a color collecting tape driving assembly is fixedly connected to the fixing plate 324, two ends of the color collecting tape shaft are detachably connected to an output end of the color collecting tape driving assembly and the dismounting plate 325, respectively, and one end of the color tape 323 is wound on the color collecting tape shaft.

As a further scheme of this embodiment, both ends of the ribbon take-up shaft have ribbon take-up shaft holes, the fixing plate 324 and the dismounting plate 325 are both rotatably connected with the ribbon take-up positioning shaft 304, an output end of the ribbon take-up driving assembly is in transmission connection with the ribbon take-up positioning shaft 304 on the fixing plate 324, and the ribbon take-up positioning shaft 304 is detachably engaged in the ribbon take-up shaft holes.

As a further solution of this embodiment, the ribbon take-up driving assembly includes a ribbon take-up motor, and the ribbon take-up motor is fixedly connected to the fixing plate 324 and is in transmission connection with the ribbon take-up positioning shaft 304 on the fixing plate 324.

Specifically, as shown in fig. 6 and 7, the ribbon take-up motor is fixed on a side of the fixing plate 324 facing the print head 301, an output shaft of the ribbon take-up motor passes through the fixing plate 324, and the ribbon take-up motor is in transmission connection with the ribbon take-up positioning shaft 304 through a gear set.

As a further scheme of this embodiment, the color discharging belt assembly 322 includes a color discharging belt shaft, a color discharging belt driving assembly is fixedly connected to the fixing plate 324, two ends of the color discharging belt shaft are detachably connected to the output end of the color discharging belt driving assembly and the dismounting plate 325, respectively, and the other end of the color belt 323 is wound on the color discharging belt shaft.

As a further scheme of this embodiment, two ends of the color ribbon releasing shaft are respectively provided with a color ribbon releasing shaft hole, the fixing plate 324 and the dismounting plate 325 are respectively rotatably connected with a color ribbon releasing positioning shaft 305, an output end of the color ribbon releasing driving assembly is in transmission connection with the color ribbon releasing positioning shaft 305 on the fixing plate 324, and the color ribbon releasing positioning shaft 305 is detachably clamped in the color ribbon releasing shaft hole.

As a further solution of this embodiment, the ribbon discharge driving assembly includes a ribbon discharge motor, and the ribbon discharge motor is fixedly connected to the fixing plate 324 and is in transmission connection with the ribbon discharge positioning shaft 305.

Specifically, as shown in fig. 6 and 7, the ribbon discharging motor is fixed on a side of the fixing plate 324 facing the print head 301, an output shaft of the ribbon discharging motor passes through the fixing plate 324, and the ribbon discharging motor is in transmission connection with the ribbon discharging positioning shaft 305 through a gear set.

As a further scheme of this embodiment, as shown in fig. 4 to fig. 6, the paper supporting assembly 303 includes two paper supporting brackets 331 and a paper supporting shaft 332, the two paper supporting brackets 331 are respectively and fixedly connected to two ends of the print head 301, and two ends of the paper supporting shaft 332 are respectively and rotatably connected to the two paper supporting brackets 331.

As a further scheme of this embodiment, there are two supporting paper shafts 332, and the two supporting paper shafts 332 are respectively disposed on two sides of the print head 301.

specifically, the paper supporting bracket 331 is in an L-shaped plate shape.

Specifically, as shown in fig. 5 to 6, the supporting shaft 332 on the side of the color discharging assembly 322 is lower than the supporting shaft 332 on the side of the color collecting assembly 321, and the lower edge of the supporting shaft 332 on the side of the color collecting assembly 321 is flush with the bottom surface of the print head 301.

As a further scheme of the embodiment, as shown in fig. 1-3, the paper feeding device further comprises a paper twisting assembly 8 and a paper cutting assembly 9 fixedly connected to the frame 1, and the paper feeding assembly 2, the paper feeding glue roller assembly 5, the plurality of printing head assemblies 3, the paper delivery glue roller assembly 6, the paper twisting assembly 8 and the paper cutting assembly 9 are sequentially arranged from one end to the other end of the frame 1.

The paper twisting component 8 comprises a paper twisting pressing roller 801 and a paper twisting guide roller 802, the paper twisting pressing roller 801 is located above the paper twisting guide roller 802, the paper twisting guide roller 802 is driven by a motor to rotate, the printing paper 4 is located between the paper twisting pressing roller 801 and the paper twisting guide roller 802, the printing paper 4 is pressed downwards onto the paper twisting guide roller 802 by the paper twisting pressing roller 801, and the printing paper 4 is driven by the paper twisting guide roller 802 to move. The cutting assembly 9 includes a cutter movable in a direction perpendicular to the advancing direction of the printing paper 4, the cutter being used to cut the printing paper, and the cutting assembly 9 may be implemented by a conventional technique.

The utility model discloses a printer working process as follows: the other end of the printing paper 4 passes through the paper placing driving rubber roller 501 and the paper placing driven rubber roller 502, the printing heads 301 and the printing head rubber rollers 701, the paper collecting driving rubber roller 601 and the paper collecting driven rubber roller 602, the paper twisting assembly 8 and the paper cutting assembly 9 in sequence, the paper placing rubber roller assembly 5 and the paper collecting rubber roller assembly 6 drive the printing paper 4 to move from one end of the rack 1 to the other end, due to the fact that the rotating speed difference exists between the printing paper 4 and the paper collecting driven rubber roller, the printing precision is high in moving stability of the printing paper 4, the printing heads 301 achieve printing, and the printed part is cut off by the paper cutting assembly 9 finally.

The utility model discloses a beat printer head assembly, beat printer head 301 and beat printer head moving frame and pass through bolt fixed connection, beat the frame that printer head moving frame can printer relatively and reciprocate, and then make and beat printer head 301 downstream and push down printing paper, print the operation, perhaps make and beat printer head 301 upward movement and leave printing paper, the machine of being convenient for is maintained and is changed typewriter ribbon 323. In operation, the ribbon 323 is tightly supported by the ribbon supporting shaft 332, the ribbon 323 moves from the ribbon releasing assembly 322 to the ribbon collecting assembly 321, the ribbon 323 is located above the printing paper and presses the printing paper, the print head 301 generates heat, and the color on the ribbon 323 is transferred to the printing paper to realize printing. When the ink ribbon 323 needs to be replaced, the print head 301 moves upward, the spring bolt 326 is loosened, the dismounting plate 325 is pulled outward, the ink ribbon take-up positioning shaft 304 on the dismounting plate 325 is separated from the ink ribbon take-up shaft 212 and the ink ribbon release positioning shaft 305 is separated from the ink ribbon release shaft 222, and then the ink ribbon take-up shaft 212 and the ink ribbon release shaft 222 can be removed to replace the ink ribbon 323.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed 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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The thermal transfer printer comprises a rack (1), a paper placing assembly (2) and a plurality of printing head assemblies (3) which are installed on the rack (1), wherein one end of printing paper (4) is rolled on the paper placing assembly (2), and the thermal transfer printer is characterized by further comprising a paper placing rubber roller assembly (5) and a paper collecting rubber roller assembly (6), the other end of the printing paper (4) sequentially passes through the paper placing rubber roller assembly (5), the plurality of printing head assemblies (3) and the paper collecting rubber roller assembly (6), and the rotating speed of the paper collecting rubber roller assembly (6) is greater than that of the paper placing rubber roller assembly (5).

2. The thermal transfer printer according to claim 1, wherein the paper placing rubber roller assembly (5) comprises a paper placing driving rubber roller (501), a paper placing driven rubber roller (502) and a paper placing rubber roller motor (503), the paper placing driving rubber roller (501) and the paper placing driven rubber roller (502) are arranged in parallel and are rotatably connected with the frame (1), the printing paper (4) is clamped between the paper placing driving rubber roller (501) and the paper placing driven rubber roller (502), and the paper placing rubber roller motor (503) is fixedly connected with the frame (1) and is in transmission connection with one end of the paper placing driving rubber roller (501).

3. The thermal transfer printer according to claim 2, wherein the paper feeding rubber roller assembly (5) further comprises a paper feeding adjusting mechanism (504), two opposite side walls of the frame (1) are provided with paper feeding adjusting grooves, the paper feeding driven rubber roller (502) penetrates through the paper feeding adjusting grooves and is rotatably connected with the paper feeding adjusting mechanism (504), and the paper feeding adjusting mechanism (504) is fixedly connected with the frame (1) and drives the paper feeding driven rubber roller (502) to approach or leave the paper feeding driving rubber roller (501) along the paper feeding adjusting grooves.

4. The thermal transfer printer according to claim 1, wherein the paper collecting rubber roller assembly (6) comprises a paper collecting driving rubber roller (601), a paper collecting driven rubber roller (602) and a paper collecting rubber roller motor (603), the paper collecting driving rubber roller (601) and the paper collecting driven rubber roller (602) are arranged in parallel and are rotatably connected with the frame (1), the printing paper (4) is clamped between the paper collecting driving rubber roller (601) and the paper collecting driven rubber roller (602), and the paper collecting rubber roller motor (603) is fixedly connected with the frame (1) and is in transmission connection with one end of the paper collecting driving rubber roller (601).

5. The thermal transfer printer according to claim 4, wherein the delivery rubber roller assembly (6) further comprises a delivery adjustment mechanism (604), two opposite side walls of the frame (1) are provided with delivery adjustment slots, the delivery driven rubber roller (602) passes through the delivery adjustment slots and is rotatably connected with the delivery adjustment mechanism (604), and the delivery adjustment mechanism (604) is fixedly connected with the frame (1) and drives the delivery driven rubber roller (602) to approach or leave the delivery driving rubber roller (601) along the delivery adjustment slots.

6. The thermal transfer printer according to claim 1, further comprising a plurality of printing head glue roller assemblies (7), wherein the printing head glue roller assemblies (7) are connected to the frame (1) and are disposed below the printing head assembly (3) in a one-to-one correspondence, and the printing paper (4) is sandwiched between the printing head glue roller assemblies (7) and the printing head assembly (3).

7. The thermal transfer printer according to claim 6, wherein the print head rubber roller assembly (7) comprises a print head rubber roller (701) and a print head rubber roller motor (702), the print head rubber roller (701) is rotatably connected with the frame (1), and the print head rubber roller motor (702) is fixedly connected with the frame (1) and is in transmission connection with one end of the print head rubber roller (701).

8. The thermal transfer printer according to any one of claims 1 to 7, wherein the printhead assembly (3) comprises a printhead (301), a ribbon take-up and pay-off assembly (302) and a paper support assembly (303), and the ribbon take-up and pay-off assembly (302) and the paper support assembly (303) are respectively fixedly connected with the printhead (301).

9. The thermal transfer printer according to claim 8, wherein the ribbon retracting and releasing assembly (302) comprises a ribbon retracting assembly (321), a ribbon releasing assembly (322) and a ribbon (323), the ribbon retracting assembly (321) and the ribbon releasing assembly (322) are respectively and fixedly connected to two sides of the print head (301), one end of the ribbon (323) is wound in the ribbon retracting assembly (321), and the other end passes through the lower side of the print head (301) and is wound in the ribbon releasing assembly (322).

10. The thermal transfer printer of claim 9, wherein the ribbon retracting assembly (302) further comprises a fixing plate (324), a dismounting plate (325) and a spring bolt (326), the fixing plate (324) is fixedly connected with one end of the printing head (301), the dismounting plate (325) is detachably connected with the other end of the printing head (301) through the spring bolt (326), the ribbon retracting assembly (321) and the ribbon releasing assembly (322) are both arranged between the fixing plate (324) and the dismounting plate (325), and both ends of the ribbon retracting assembly (321) and the ribbon releasing assembly (322) are detachably connected with the fixing plate (324) and the dismounting plate (325), respectively.