CN106881968B

CN106881968B - Miniaturized type code printing device for intaglio characters

Info

Publication number: CN106881968B
Application number: CN201710144073.1A
Authority: CN
Inventors: 巨琳辉
Original assignee: Shenzhen Silone Tonghui Technology Co ltd
Current assignee: Shenzhen Silone Tonghui Technology Co ltd
Priority date: 2017-03-10
Filing date: 2017-03-10
Publication date: 2022-12-23
Anticipated expiration: 2037-03-10
Also published as: CN106881968A

Abstract

A small-sized code printing device for intaglio characters belongs to the technical field of certificate card printing. The invention solves the problems that the existing large-scale card printing equipment occupies large space and is not suitable for printing the CVV concave code on the card when the counter instant card issuing business is transacted, and the existing desktop type card printer can not realize the printing requirement of the back CVV concave code. The card feeding mechanism comprises a card conveying assembly and a concave code printing assembly, wherein a lower rubber wheel is rotatably and fixedly connected under an upper rubber wheel, a gap is formed between the lower rubber wheel and the upper rubber wheel, three first transmission shafts are arranged in parallel from front to back and are positioned on the same horizontal plane, the three upper rubber wheels are respectively sleeved and fixedly connected on the three first transmission shafts, the bottom of a character bar is fixedly connected on a conveying device, and a hammer is positioned above a cam and is contacted with the outer edge of the cam; the ribbon box is fixedly connected above the character hammer, the ribbon in the ribbon box is controlled to act through the ribbon shifting motor, and the character strip is positioned between the ribbon box and the character hammer. The method is used for printing the CVV code.

Description

Miniaturized intaglio character code printing device

Technical Field

The invention relates to a miniaturized code printing device for intaglio characters, belongs to the technical field of certificate card printing, and particularly relates to the technical field of personalized card code printing.

Background

At present, with the development of instant card issuing technology and the importance of users on card safety, card issuing equipment for issuing non-embossed financial cards or various membership cards on site by financial institutions and retail institutions requires that the back of all bank cards needs a safety code, namely a CVV (composite variable V) concave code from the last year on account of the requirements of people and banks. The existing large-scale card making equipment can print CVV concave codes, and basically utilizes a raised character module for printing, but because the module has large volume, large occupied space and heavy weight, and services such as card issuing of general financial institutions are handled in counters, the large-scale card making equipment is not suitable for instant card issuing with limited occupied area. The existing desktop type card printer in the market can realize the functions of writing magnetism, IC and planographic printing of the card, but cannot meet the requirement of printing CVV concave codes on the back surface.

Disclosure of Invention

The invention aims to solve the problems that the existing large-scale certificate card printing equipment occupies large space and is not suitable for printing CVV (variable virtual V) concave codes on cards when the instant card issuing business of a counter is transacted and the existing desktop type certificate card printer cannot meet the requirement of printing the CVV concave codes on the back side, and further provides a miniature concave character code printing device.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a small-sized code printing device for intaglio characters comprises a card conveying component and a code printing component,

the card transport assembly comprises: the card moving device comprises a card moving motor, a first transmission wheel set, three rubber wheel sets and three first transmission shafts, wherein each rubber wheel set comprises an upper rubber wheel and a lower rubber wheel, the lower rubber wheel is rotatably and fixedly connected under the upper rubber wheel, a gap is reserved between the lower rubber wheel and the upper rubber wheel, the three first transmission shafts are arranged in parallel from front to back and are positioned on the same horizontal plane, the three upper rubber wheels are respectively sleeved and fixedly connected on the three first transmission shafts, and one end of each first transmission shaft is connected with the output end of the card moving motor through the first transmission wheel set;

the concave code printing assembly comprises a character movement motor, a second transmission wheel set, a conveying device, character bars, a hammer up-pressing motor, a third transmission wheel set, a second transmission shaft, a cam, a hammer, a ribbon running motor, a ribbon box and ten character dies, wherein the ten character dies are inserted in the character bars side by side, the bottoms of the character bars are fixedly connected to the conveying device, a fourth driving wheel in the conveying device is fixedly connected with the output end of the character movement motor through the second transmission wheel set, and the character bars realize reciprocating linear movement from front to back through the conveying device; the cam is arranged on a second transmission shaft which is arranged horizontally in a penetrating mode, one end of the second transmission shaft is connected with the output end of the hammer upward-pressing motor through a third transmission wheel set, and the hammer is located above the cam and is in contact with the outer edge of the cam; the ribbon box is fixedly connected above the character hammer, the ribbon in the ribbon box is controlled to act through the ribbon shifting motor, and the character strip is positioned between the ribbon box and the character hammer.

Further, the clearance between each upper rubber wheel and the lower rubber wheel below the upper rubber wheel is smaller than the thickness of the card.

Furthermore, the circumferential surface of each lower rubber wheel is provided with ratchets, and the distribution direction of the ratchets is consistent with the rotation direction of the ratchets.

Further, the ribbon cartridge includes casing, typewriter ribbon, initiative colour band wheel, driven colour band wheel and two guide bars, and the casing bottom is the open end, and two guide bars difference rigid couplings are at the both ends of casing bottom, and two guide bar parallel arrangement each other, and the typewriter ribbon twines simultaneously on initiative colour band wheel and driven colour band wheel to through the direction of two guide bars, the typewriter ribbon is walked and is still be provided with the mounting bracket between motor and the word hammer, rotatable rigid coupling has the axis of rotation on a lateral wall of mounting bracket, and during the installation, initiative typewriter ribbon wheel suit is walked on the output shaft of motor at the typewriter ribbon, and driven typewriter ribbon wheel suit is in the axis of rotation.

Furthermore, the conveying device and the first to third transmission wheel sets are synchronous belt transmission sets, wherein each first transmission wheel set comprises a first driving wheel, a tensioning wheel and three first driven wheels, the first driving wheel is fixedly connected with the output end of the card moving motor, the three first driven wheels are fixedly connected with the three first transmission shafts respectively, and the first driven wheel positioned at the rear part and the first driven wheel positioned at the middle part are tensioned through the tensioning wheels; the second transmission wheel set comprises a second driving wheel and a second driven wheel, the second driving wheel is fixedly connected with the output end of the character movement motor, and the fourth driving wheel is coaxially and fixedly connected with the second driven wheel; the third transmission wheel set comprises a third driving wheel and a third driven wheel, the third driving wheel is fixedly connected with the output end of the piezoelectric motor on the hammer, and the third driven wheel is fixedly connected with the second transmission shaft.

Furthermore, the conveying device also comprises a fourth driven wheel, and the character strips are fixedly connected to the conveying belt of the conveying device.

Furthermore, the card moving motor, the hammer pressing motor and the character moving motor are all stepping motors, and the ribbon displacement motor is a direct-current brushless motor.

Further, a sign indicating number device is beaten to miniaturized concave letter still includes the frame, card conveying component and concave sign indicating number printing element are all fixed through the frame, still the rigid coupling has two guide card grooves of relative setting along card direction of transmission's both sides in the frame, and every guide card groove's recess downside inner wall and lower rubber tyer top are located same horizontal plane.

Compared with the prior art, the invention has the following effects:

the character strip makes linear motion, compared with the existing large card equipment structure adopting a disc type to install characters, the large card equipment structure has the advantages of smaller occupied area, lighter weight, simpler structure and more convenient and simpler consumable replacement;

the invention can be connected to the back of a common desktop card printer (namely the card outlet end of the card printer), thereby realizing the printing, magnetism writing and IC of the card by using the card printer, and then entering the miniaturized concave character code printing device of the invention to realize the requirement of printing CVV on the back of the card. The prior card making equipment generally needs two types of equipment to complete the personalization of the card, and data is easy to make mistakes. The card manufacturing method is low in card manufacturing cost and high in speed, and the functions which can be completed only by two types of equipment in the prior art are completed. The printing of CVV concave codes is convenient to select and switch.

Drawings

FIG. 1 is a first perspective view of the present invention;

FIG. 2 is a second perspective view of the present invention (the ribbon cartridge and one side frame are not shown);

FIG. 3 is a third perspective view of the present invention;

FIG. 4 is a fourth perspective view of the present invention;

FIG. 5 is a schematic diagram of a fifth perspective view of the present invention;

FIG. 6 is a schematic perspective view of an ink ribbon cassette;

fig. 7 is a schematic view of the overall structure of the present invention (only the frame is shown).

Detailed Description

The first embodiment is as follows: the embodiment is described with reference to fig. 1-7, a miniaturized code printing device for intaglio characters, which comprises a card conveying assembly and a code printing assembly,

the card transport assembly comprises: the card moving device comprises a card moving motor 1, a first transmission wheel set 2, three rubber wheel sets 3 and three first transmission shafts 4, wherein each rubber wheel set 3 comprises an upper rubber wheel 3-1 and a lower rubber wheel 3-2, the lower rubber wheel 3-2 is rotatably and fixedly connected under the upper rubber wheel 3-1, a gap is formed between the lower rubber wheel and the upper rubber wheel 3-1, the three first transmission shafts 4 are arranged in parallel from front to back and are positioned on the same horizontal plane, the three upper rubber wheels 3-1 are respectively sleeved and fixedly connected on the three first transmission shafts 4, and one end of each first transmission shaft 4 is connected with the output end of the card moving motor 1 through the first transmission wheel set 2;

the concave code printing component comprises a character movement motor 5, a second transmission wheel set 6, a conveying device 7, a character strip 8, a hammer piezoelectric motor 9, a third transmission wheel set 10, a second transmission shaft 11, a cam 12, a hammer 13, a ribbon displacement motor 14, a ribbon box 15 and ten character dies 16, wherein the ten character dies 16 are inserted in the character strip 8 side by side, the bottom of the character strip 8 is fixedly connected to the conveying device 7, a fourth driving wheel in the conveying device 7 is fixedly connected with the output end of the character movement motor 5 through the second transmission wheel set 6, and the character strip 8 realizes the reciprocating linear movement from front to back through the conveying device 7; the cam 12 is arranged on a second transmission shaft 11 which is arranged horizontally in a penetrating way, one end of the second transmission shaft 11 is connected with the output end of the piezoelectric motor 9 on the hammer through a third transmission wheel set 10, and the hammer 13 is positioned above the cam 12 and is contacted with the outer edge of the cam 12; the ribbon box 15 is fixed above the hammers 13, the ribbon in the ribbon box is controlled by the ribbon moving motor 14, and the character strip 8 is positioned between the ribbon box 15 and the hammers 13.

The miniature intaglio character coding device changes the original structure of utilizing the rotation of a circular center and adopting a disc type to install characters into the structure of the character bar 8 adopting a linear motion mode, has small occupied area, is more suitable for a desktop environment, and can meet the general requirements of card making of various banks.

The invention can be connected with the back of the card printer (namely the card outlet end of the card printer), thereby realizing the printing, the magnetism writing and the IC of the card by using the card printer, and then entering the miniaturized concave character code printing device of the invention to realize the requirement of printing the CVV on the back of the card. The end of the miniaturized code printing device for intaglio characters, which is connected with the identification card printer, is the front end, and the other end of the card, which is discharged after the CVV is printed, is the rear end. The prior card making equipment generally needs two types of equipment to complete the personalization of the card, and data is easy to make mistakes. The card manufacturing method is low in card manufacturing cost and high in speed, and the functions which can be completed only by two types of equipment in the prior art are completed.

The card moving motor 1, the upper hammer piezoelectric motor 9 and the character moving motor 5 are all stepping motors, and the ribbon displacement motor 14 is a direct-current brushless motor. And controlling the motors to work through sensor signals so as to finish CVV printing of the card.

The distance of the character movement motor 5 driving the character strip 8 to move is controlled by means of pulse number, subdivision and the like, so that any character matrix 16 on the required character strip 8 can be stopped right above the character hammers 13.

The card moving motor 1 acts, the card enters between the upper rubber wheel 3-1 and the lower rubber wheel 3-2 which are positioned in front, and the position of the card, which is to be printed with the CVV concave code, is correctly conveyed to the position right above the character hammer 13 through the action of the first transmission wheel group 2.

The hammer up-pressing motor 9 drives the cam 12 to do back-and-forth rotation movement, so that the hammer 13 moves up and down, the matrix 16 right above the hammer 13 is driven to move up and down, and the matrix 16 impacts the color ribbon and prints CVV numbers on the card.

The ribbon box 15 comprises a driving ribbon wheel 15-1 and a driven ribbon wheel 15-2 for winding ribbon, wherein the driving ribbon wheel 15-1 is a ribbon recovery wheel, and the ribbon position-moving motor 14 drives the driving ribbon wheel 15-1 to rotate to realize the movement of the ribbon, so that the ribbon (i.e. the used ribbon) with CVV number is separated from the right above the hammer 13, and the ribbon right above the hammer 13 is ensured to be the ribbon without CVV. A grating disc is used to ensure that the distance that the ribbon moves is the same for each pass. The ribbon cartridge 15 is in the form of a tape cartridge, is small in size and light in weight, and facilitates the replacement of the ribbon by a customer.

The second embodiment is as follows: referring to fig. 1 to 5, in the embodiment, the gap between each upper rubber wheel 3-1 and the lower rubber wheel 3-2 below the upper rubber wheel is smaller than the thickness of the card. By the design, after the card enters the space between the upper rubber wheel 3-1 and the lower rubber wheel 3-2, the card can be smoothly conveyed. Other components and connection relations are the same as those of the first embodiment.

The third concrete implementation mode: referring to fig. 1 to 5, in the present embodiment, the circumferential surface of each lower rubber wheel 3-2 is provided with ratchets, and the distribution direction of the ratchets is consistent with the rotation direction of the ratchets. By the design, the cards are further ensured to be smoothly transmitted. Other components and connection relations are the same as those of the first embodiment or the second embodiment.

The fourth concrete implementation mode: referring to fig. 1, 2 and 6, the embodiment is described, the ribbon cartridge 15 includes a housing 15-3, a ribbon, a driving ribbon wheel 15-1, a driven ribbon wheel 15-2 and two guide rods 15-4, the bottom of the housing 15-3 is an open end, the two guide rods 15-4 are respectively and fixedly connected to two ends of the bottom of the housing 15-3, the two guide rods 15-4 are arranged in parallel, the ribbon is simultaneously wound on the driving ribbon wheel 15-1 and the driven ribbon wheel 15-2 and guided by the two guide rods 15-4, a mounting frame 17 is further arranged between the ribbon positioning motor 14 and the hammer 13, a rotating shaft 17-1 is rotatably and fixedly connected to one side wall of the mounting frame 17, when the ribbon is mounted, the driving ribbon wheel 15-1 is sleeved on an output shaft of the ribbon positioning motor 14, and the driven ribbon wheel 15-2 is sleeved on the rotating shaft 17-1. By the design, the driving color belt wheel 15-1 is a color belt recycling wheel, the color belt position-moving motor 14 drives the driving color belt wheel 15-1 to rotate to realize the movement of the color belt, so that the color belt with CVV figures (namely the used color belt) can leave the position right above the hammer 13, and the color belt right above the hammer 13 is ensured to be the color belt without CVV figures. A grating disk is used to ensure that the distance of each movement of the ribbon is the same. The ribbon cartridge 15 is in the form of a tape cartridge, is small in size and light in weight, and facilitates the replacement of the ribbon by a customer. The ribbon box is also provided with a manual adjusting knob 21 for tightening the ribbon on the driving wheel. Other components and connection relations are the same as those of the third embodiment.

The fifth concrete implementation mode is as follows: the embodiment is described with reference to fig. 1 to 5, in which the conveying device 7 and the first to third transmission wheel sets are synchronous belt transmission sets, the first transmission wheel set 2 includes a first driving wheel, a tensioning wheel and three first driven wheels, the first driving wheel is fixedly connected to the output end of the card moving motor 1, the three first driven wheels are fixedly connected to the three first transmission shafts 4, and the first driven wheel at the rear portion and the first driven wheel at the middle portion are tensioned by the tensioning wheel; the second transmission wheel set 6 comprises a second driving wheel and a second driven wheel, the second driving wheel is fixedly connected with the output end of the character movement motor 5, and a fourth driving wheel is coaxially and fixedly connected with the second driven wheel; the third transmission wheel set 10 comprises a third driving wheel and a third driven wheel, the third driving wheel is fixedly connected with the output end of the upper hammer piezoelectric motor 9, and the third driven wheel is fixedly connected with the second transmission shaft 11. By the design, no relative sliding between the belt and the belt wheel is ensured, and accurate transmission ratio can be ensured. Other components and connection relations are the same as those of the first, second or fourth embodiment.

The sixth specific implementation mode: in the embodiment described with reference to fig. 1 to 5, the conveying device 7 further includes a fourth driven wheel, the fourth driving wheel and the fourth driven wheel are connected by a conveying belt, and the character bar 8 is fixedly connected to the conveying belt. By the design, the linear motion of the character bar 8 is more stable. Other components and connection relations are the same as the fifth concrete actual mode.

The seventh embodiment: in the present embodiment, the card moving motor 1, the hammer piezoelectric motor 9, and the character moving motor 5 are all stepping motors, and the ribbon positioning motor 14 is a dc brushless motor, as described with reference to fig. 1 to 5. By the design, each stepping motor can control the angular displacement by controlling the number of pulses, so that the aim of accurate positioning is fulfilled; meanwhile, the rotating speed and the rotating acceleration of the motor can be controlled by controlling the pulse frequency, so that the aim of speed regulation is fulfilled; the direct current brushless motor is adopted, and the characteristics of high reliability and good stability are utilized to ensure that the ribbon in the ribbon box 15 moves stably. Other components and connection relationships are the same as those in the first, second, fourth or sixth embodiment.

The specific implementation mode is eight: the embodiment is described with reference to fig. 1 to 7, the miniaturized code printing device for intaglio printing further includes a frame 18, the card conveying assembly and the code printing assembly are both fixed by the frame 18, two opposite card guide slots 19 are further fixedly connected to two sides of the frame 18 along the card conveying direction, and the inner wall of the lower side of the groove of each card guide slot 19 and the top of the lower rubber wheel 3-2 are located on the same horizontal plane. So design, the card is from the card printing apparatus output back, gets into in the guide card groove 19 to along guide card groove 19 entering rubber tyer, guide card groove 19 plays the guide effect to the card, prevents that the card from shifting or dropping midway in the position of transmission in-process, and multistage formula guide card groove can be made according to actual need in every guide card groove. An auxiliary plate 20 may also be provided below the card guide slot 19, the front of the cassette being the direction in which the card enters and the rear of the cassette being the direction in which the card exits, the auxiliary plate being located behind the cassette for further supporting the card. A plurality of photoelectric sensors are spaced on both sides of the carriage 18 in the card transport direction to detect the position of the card. Other components and connection relationships are the same as those in the seventh embodiment.

The working principle is as follows:

1. the card firstly carries out the functions of magnetic writing, IC and lithographic printing on the card through the card printing equipment, the card is transmitted to the miniaturized intaglio code printing device after the completion, and the card moving motor 1 starts to work after a sensor in the mechanism senses that the card is in place;

2. the card moving motor 1 works, power is transmitted to the rubber wheel group 3 through the synchronous belt, the card enters between the upper rubber wheel 3-1 and the lower rubber wheel 3-2 which are positioned in front, the position of the card to be printed with the CVV concave code is correctly transmitted to the position right above the character hammer 13 under the action of the first transmission wheel group 2, and then the card moving motor 1 stops working;

3. when the card moving motor 1 stops working, the character moving motor 5 starts working, and power is transmitted to the conveying device 7 for mounting the character strip 8 through the synchronous belt, so that a character matrix 16 to be printed on the character strip 8 is moved to a position right above the character hammer 13, and the character moving motor 5 stops working after the character matrix 16 is in place;

4. when the character movement motor 5 stops working, the piezoelectric motor 9 on the hammer starts working, the cam 12 is driven to rotate through the speed reduction transmission power of the synchronous belt, the hammer 13 is driven to move upwards, the matrix 16 is pushed to move upwards, the matrix 16 impacts a color tape and prints a CVV (composite video V) number on a card, the piezoelectric motor 9 on the hammer rotates reversely to drive the cam 12 component to rotate reversely, and when the cam 12 rotates reversely to an initial position, the piezoelectric motor 9 on the hammer stops working;

5. when the piezoelectric motor 9 on the hammer stops working, the ribbon-moving motor 14 starts working to drive the ribbon to move for a certain distance (ensuring that the ribbon staying above the matrix 16 is an unused ribbon), and the ribbon-moving motor 14 stops working;

6. repeating the steps 2-5 until the card CVV is completed;

7. after CVV printing is finished, the character movement motor 5 drives the character strips 8 to reset through the synchronous belt;

8. after the character bar 8 is reset, the character motion motor 5 suspends the work, the rubber wheel set 3 transmits the printed card to the card outlet (namely, the position corresponding to the rubber wheel set 3 close to the rear end) through the power transmitted by the card motion motor 1, and the card is taken away by a worker.

Claims

1. The utility model provides a sign indicating number device is beaten to miniaturized intaglio, its characterized in that: it comprises a card conveying component and a concave code printing component,

the card transport assembly comprises: the card moving mechanism comprises a card moving motor (1), a first transmission wheel set (2), three rubber wheel sets (3) and three first transmission shafts (4), wherein each rubber wheel set (3) comprises an upper rubber wheel (3-1) and a lower rubber wheel (3-2), the lower rubber wheel (3-2) is rotatably and fixedly connected under the upper rubber wheel (3-1) and has a gap with the upper rubber wheel (3-1), the three first transmission shafts (4) are arranged in parallel from front to back and are positioned on the same horizontal plane, the three upper rubber wheels (3-1) are respectively sleeved and fixedly connected on the three first transmission shafts (4), and one end of each first transmission shaft (4) is connected with the output end of the card moving motor (1) through the first wheel set transmission (2);

the concave code printing assembly comprises a character moving motor (5), a second transmission wheel set (6), a conveying device (7), character bars (8), a hammer piezoelectric motor (9), a third transmission wheel set (10), a second transmission shaft (11), a cam (12), a hammer (13), a ribbon walking motor (14), a ribbon box (15) and ten character dies (16), wherein the ten character dies (16) are inserted in the character bars (8) side by side, the bottoms of the character bars (8) are fixedly connected to the conveying device (7), a fourth driving wheel in the conveying device (7) is fixedly connected with the output end of the character moving motor (5) through the second transmission wheel set (6), and the character bars (8) realize the reciprocating linear motion from front to back through the conveying device (7); the cam (12) is arranged on a second transmission shaft (11) which is horizontally arranged in a penetrating manner, one end of the second transmission shaft (11) is connected with the output end of the piezoelectric motor (9) on the hammer through a third transmission wheel set (10), and the hammer (13) is positioned above the cam (12) and is contacted with the outer edge of the cam (12); the ribbon box (15) is fixedly connected above the hammer (13), the ribbon in the ribbon box is controlled to act by a ribbon moving motor (14), and the character strip (8) is positioned between the ribbon box (15) and the hammer (13).

2. The miniaturized braille coding device according to claim 1, wherein: the clearance between each upper rubber wheel (3-1) and the lower rubber wheel (3-2) below the upper rubber wheel is smaller than the thickness of the card.

3. A miniaturized intaglio coding device according to claim 1 or 2, wherein: the circumferential surface of each lower rubber wheel (3-2) is provided with ratchets, and the distribution direction of the ratchets is consistent with the rotation direction of the ratchets.

4. A miniaturized intaglio coding device according to claim 3, characterized in that: the ribbon box (15) comprises a shell (15-3), a ribbon, a driving ribbon wheel (15-1), a driven ribbon wheel (15-2) and two guide rods (15-4), wherein the bottom of the shell (15-3) is an open end, the two guide rods (15-4) are fixedly connected to two ends of the bottom in the shell (15-3) respectively, the two guide rods (15-4) are arranged in parallel, the ribbon is wound on the driving ribbon wheel (15-1) and the driven ribbon wheel (15-2) at the same time and guided by the two guide rods (15-4), an installation frame (17) is further arranged between the ribbon placement motor (14) and the hammer (13), a rotating shaft (17-1) is rotatably and fixedly connected to one side wall of the installation frame (17), the driving ribbon wheel (15-1) is sleeved on an output shaft of the ribbon placement motor (14), and the driven ribbon wheel (15-2) is sleeved on the rotating shaft (17-1).

5. A miniaturized intaglio coding device according to claim 1, 2 or 4, characterized in that: the conveying device (7) and the first to third transmission wheel sets are synchronous belt transmission sets, wherein the first transmission wheel set (2) comprises a first driving wheel, a tensioning wheel and three first driven wheels, the first driving wheel is fixedly connected with the output end of the card moving motor (1), the three first driven wheels are fixedly connected with the three first transmission shafts (4) respectively, and the first driven wheel positioned at the rear part and the first driven wheel positioned at the middle part are tensioned through the tensioning wheel; the second transmission wheel set (6) comprises a second driving wheel and a second driven wheel, the second driving wheel is fixedly connected with the output end of the character movement motor (5), and the fourth driving wheel is coaxially and fixedly connected with the second driven wheel; the third transmission wheel set (10) comprises a third driving wheel and a third driven wheel, the third driving wheel is fixedly connected with the output end of the upper hammer piezoelectric motor (9), and the third driven wheel is fixedly connected with the second transmission shaft (11).

6. The miniaturized braille coding device according to claim 5, wherein: the conveying device (7) further comprises a fourth driven wheel, the fourth driving wheel is connected with the fourth driven wheel through a conveying belt, and the character bars (8) are fixedly connected to the conveying belt.

7. A miniaturized intaglio coding device according to claim 1, 2, 4 or 6, wherein: the card moving motor (1), the hammer piezoelectric motor (9) and the character moving motor (5) are stepping motors, and the ribbon displacement motor (14) is a direct-current brushless motor.

8. A miniaturized intaglio coding device according to claim 7, wherein: still include frame (18), card conveying subassembly and concave sign indicating number printing module are all fixed through frame (18), still the rigid coupling has two guide card groove (19) of relative setting along card direction of transmission's both sides on frame (18), and the recess downside inner wall and lower rubber tyer (3-2) top of every guide card groove (19) are located same horizontal plane.