CN209505249U - Transmission device and transmission system and printing device applied to printing device - Google Patents

Abstract

The utility model is applied to the transmission device of printing device, comprising: main body is connect with the frame of printing device, and being driven can be along recording medium transporting direction reciprocating linear motion under power effect；Ratcheting portion is formed in the side of the main body, engages connection with the gear with driving device；First linkage portion is projected upwards in the upper face of the main body, and the rubber roll bracket for the printing device that links when the main body moves to the first linkage position along first direction rises；Second linkage portion is protruded out in the front end in the ratcheting portion to the outbound course of the recording medium, and link the rubber roll bracket decline when the main body is along counter motion to the second linkage position of first direction；Third linkage portion is formed in the side of the main body, is risen with the pickup roller support with the printing device that links；Four-axle linkage portion is formed in the side of the main body, is declined with the pickup roller support that links.

Description

Transmission device and transmission system and printing device applied to printing device

Technical field

The utility model relates to the technical fields of printer, in particular to the transmission device for being applied to printing device And transmission system and printing device.

Background technique

Most of printer is provided to office or family and is used, and the type of printer is abundant, by used Technique classification includes the printers such as ink jet type, heat-sensitive type, thermal transfer, electrostatic.Wherein, the printing device of thermal transfer need using Carbon tape box, carbon tape box include the carbon ribbon for supplying axis, recycling axis and both ends and being connected on two axis.It is orderly in micromodule equipment pick up Take the transmission of roller, print unit and carbon ribbon conveying extremely important, existing drive mechanism has through cam structure and switching machine Structure coordinates to complete above-mentioned work, and there are occupied spaces than big, and the coordination of carbon ribbon conveying often uses complicated switching Mechanism.

Utility model content

The utility model provides the transmission device and transmission system and printing device applied to printing device, it is intended to improve The problem of collaborative work complexity between existing printing device carbon ribbon conveying, print unit and pick-up roller.

The utility model is realized in this way:

Transmission device applied to printing device characterized by comprising

Main body is connect with the frame of printing device, and being driven under power effect can be along recording medium transporting direction toward multiple line Property movement；

Ratcheting portion is formed in the side of the main body, engages connection with the gear with driving device；

First linkage portion is projected upwards in the upper face of the main body, moves to along first direction in the main body One linkage position when link the printing device rubber roll bracket rise；

Second linkage portion is protruded out in the front end in the ratcheting portion to the outbound course of the recording medium, in the main body Link the rubber roll bracket decline when along counter motion to the second linkage position of first direction；

Third linkage portion is formed in the side of the main body, is risen with the pickup roller support with the printing device that links；

Four-axle linkage portion is formed in the side of the main body, is declined with the pickup roller support that links.

Further, the transmission device is made into integration.

Further, the side of the main body is equipped with rack gear, and the top surface of the rack gear is equipped with engaging tooth shape at described ratcheting Portion, the third linkage portion and four-axle linkage portion are located at the lower part of the rack gear.

Further, the side of the rack gear opens up horizontal concrete chute and forms the third linkage portion.

Further, the bottom surface of the rack gear forms four-axle linkage portion, the third linkage portion and the tetrad The lead-over groove of both connections is equipped between dynamic portion.

Further, the front end of the rack gear protrudes out to form second linkage portion.

Transmission system further includes the rubber roller to carry printing rubber roller including the above-mentioned transmission device of the claims Bracket, and the pickup roller support to carry pick-up roller, first linkage portion contacted with the bottom surface of the rubber roll bracket and Increase the rubber roll bracket, second linkage portion compresses the rubber roll bracket and declines the rubber roll bracket；It is described to pick up Taking roller support includes first connecting portion, and the first connecting portion and the third linkage portion cooperate and make in the pickup roller support It rises, the first connecting portion and four-axle linkage portion cooperate and decline the pickup roller support.

Further, the side of the rubber roll bracket is equipped with second connecting portion, and second linkage portion compresses described second Interconnecting piece and decline the rubber roll bracket.

Further, the side for picking up roller support is equipped with first connecting portion, and the first connecting portion includes circle Cylinder, the cylindrical body and the third linkage portion cooperate and increase the pickups roller support, the cylindrical body and described the Four-axle linkage portion cooperates and declines the pickup roller support.

It further, further include print unit, the print unit includes printing rubber roller and thermal print head, the printing rubber roller It is located on the rubber roll bracket and rises with it or decline, the matching relationship of both the printing rubber roller and described thermal print head includes beating Print state and discrete state.

The beneficial effects of the utility model are: the utility model passes through setting transmission device, the integrated interlinked glue of transmission device The third linkage portion and four-axle linkage of roller support are picked up in the first linkage portion and the second linkage portion of roller support, and linkage, so that Print unit and pick-up roller are capable of the work of harmonious orderly.

Detailed description of the invention

It, below will be to required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment The attached drawing used is briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore not It should be considered as the restriction to range, for those of ordinary skill in the art, without creative efforts, It can also be obtained according to these attached drawings other relevant attached drawings.

Fig. 1 is the utility model embodiment, structural schematic diagram of the printing device under the first visual angle；

Fig. 2 is the decomposition diagram of printing device shown in Fig. 1；

Fig. 3 is the utility model embodiment, and printing device is in structural schematic diagram of the original state under the second visual angle；

Fig. 4 is the utility model embodiment, and printing device is in structural schematic diagram of the transport status under the second visual angle；

Fig. 5 is the utility model embodiment, and printing device is in structural schematic diagram of the print state under the second visual angle；

Fig. 6 is the utility model embodiment, structural schematic diagram of the transmission device under third visual angle；

Fig. 7 is the utility model embodiment, picks up structural schematic diagram of the roller arrangement under third visual angle；

Fig. 8 is the utility model embodiment, structural schematic diagram of the switching device under third visual angle.

Icon: 100- printing device；1- pedestal；2- transmission device；3- picks up roller arrangement；4- print unit；5- carbon ribbon group Part；6- switching device；7- supporting plate；8- driving device；11- frame；12- box body；121- window；51- supplies axis；52- carbon ribbon； 53- recycles axis；41- thermal print head；42- printing rubber roller；43- rubber roll bracket；431- second support；432- first support；81- first Driving group；The first driving member of 82-；31- picks up roller support；32- pick-up roller；33- shaft；34- first connecting portion；35- cylindrical body； 36- first gear；61- second gear；62- switches bracket；63- linking arm；44- second connecting portion；45- protrusion；46- elasticity Part；64- cylinder；The ratcheting portion 21-；The second linkage portion of 22-；23- rack gear；24- third linkage portion；25- lead-over groove；26- tetrad Dynamic portion；The first linkage portion of 27-；28- main body.

Specific embodiment

It is practical below in conjunction with this to keep the purposes, technical schemes and advantages of the utility model embodiment clearer The technical solution in the utility model embodiment is clearly and completely described in attached drawing in novel embodiment, shows So, described embodiment is a part of embodiment of the utility model, rather than whole embodiments.It is practical based on this Embodiment in novel, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment is fallen within the protection scope of the utility model.Therefore, the implementation to the utility model provided in the accompanying drawings below The detailed description of mode is not intended to limit the range of claimed invention, but is merely representative of the utility model Selected embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative labor Every other embodiment obtained under the premise of dynamic, fall within the protection scope of the utility model.

Term " first ", " second " be used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or Implicitly indicate the quantity of indicated technical characteristic." first " is defined as a result, the feature of " second " can be expressed or imply Ground includes one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more, Unless otherwise specifically defined.

In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis Concrete condition understands the concrete meaning of above-mentioned term in the present invention.

Referring to figs. 1 to shown in Fig. 8, printing device 100 includes pedestal 1, transmission device 2, picks up roller arrangement 3, switching device 6, driving device 8, print unit 4 and carbon ribbon component 5.Pedestal 1 includes the shell of printing device 100 and is located at shell cavity Interior bracket etc., for coat, carry, be arranged transmission device 2, pick up roller arrangement 3, switching device 6, the structures such as driving device 8, Device, dependency structure or device, which can be, to be contained in the cavity of shell, can fix, is removable, be flexibly connected etc. modes be located at On bracket.

Pedestal 1 includes the box body 12 for accommodating recording medium, and several recording medium stackers are stacked in the cavity of box body 12, box Window 121 is offered on body 12, is picked up roller arrangement 3 and is contacted by window 121 with the recording medium in box body 12.It is set on pedestal 1 Have recording medium towards the supporting plate 7 compressed at window 121, roller arrangement 3 is picked up in help can touch recording medium, and record There is medium certain pressure to be pressed on pick-up roller 32.

Driving device 8 includes several actuators, actuator it is direct or indirect to switching device 6, print unit 4, pick up Roller arrangement 3, carbon ribbon component 5 etc. transmit driving force.The driving force output end of usual actuator and the input terminal of structure driving force it Between be equipped with several driving members.If an actuator can drive dry part, actuator can be the forms such as electrical, pneumatic, hydraulic Power-equipment, in the present embodiment using can be easily mounted in small device, the motor of good operating stability.Driving member can be with Using gear, several grades of gears are set, convenient for suitable transmission ratio and transmission is arranged between the output end and input terminal of driving force Distance.

Print unit 4 includes printing rubber roller 42, the rubber roll bracket 43 for carrying printing rubber roller 42, is located at 42 top of printing rubber roller Thermal print head 41.Recording medium passes through between printing rubber roller 42 and thermal print head 41, thermal print head 41 by recording medium to printing glue Roller 42 compresses, and is heated to the recording medium or carbon ribbon 52 that are equipped with ink so that ink reaction leaves corresponding trace on the recording medium Mark.Recording medium refers to the substance that can leave printing trace on it by the printing of printing device 100, such as A4 paper, photo Paper, heat-sensitive paper etc. belong to recording medium.

Carbon ribbon component 5 includes supply axis 51, recycling axis 53 and the carbon ribbon 52 coated with ink, the both ends difference of carbon ribbon 52 Around in supply axis 51 and recycling axis 53, recycling axis 53 is connected or separated with switching device 6, and recycling axis 53 and switching device 6 connect Power effect rotation retracting carbon ribbon 52 is driven when connecing.Carbon ribbon 52 passes through between printing rubber roller 42 and thermal print head 41, thermal print head 41 Carbon ribbon 52 is heated, ink thereon is transferred in recording medium.

Printing device 100 further includes supply unit, to export recording medium outward.Supply unit is located at print unit 4 downstream.Supply unit includes conveying roller and the air roll that is pressed on conveying roller, and driving device 8 is transmitted to conveying roller and driven Power, conveying roller are driven power effect rotation.42 bracket of printing rubber roller is set on conveying roller, and can be turned around the axis of conveying roller It is dynamic.

Transmission device 2 includes main body 28, ratcheting portion 21, the first linkage portion 27, the second linkage portion 22,24 and of third linkage portion Four-axle linkage portion 26, transmission device 2 are made into integration and can be along recording medium transporting direction reciprocating linear motions under by power effect. Main body 28 is connect with the pedestal 1 of printing device 100, specifically, it connect with a metal framework 11 in pedestal 1.Frame 11 On open up guide groove, along the prominent guide pad in bottom surface of the conveying direction setting main body 28 of recording medium, guide pad protrudes into guide groove It can move in guide groove and along guide groove.

The side of main body 28 is equipped with rack gear 23, and the top surface of the rack gear 23 is equipped with engaging tooth shape into the ratcheting portion 21, leads to It crosses ratcheting portion 21 to connect with driving device 8, so that transmission device 2 is driven line of force reciprocating motion.In 28 side of main body Rack gear 23 is set, and rack gear 23 is arranged close to the side of frame 11, and main body 28 is that bottom surface is sticked the plate knot on surface on the frame 11 Structure.The overall structure of transmission device 2 can be optimized, and each position of transmission device 2 is sticked on the frame 11 just or close to frame The setting of 11 sides reduces the space that transmission device 2 occupies printing device 100.

First linkage portion 27 is used to connect with rubber roll bracket 43 with the second linkage portion 22, and links on rubber roll bracket 43 respectively It rises or declines.In embodiment, the first linkage portion 27 is projected upwards in the upper face of main body 28, in the main body 28 along first party Rise to the rubber roll bracket 43 for the printing device 100 that links when moving to the first linkage position.First direction can be record The outbound course of medium is also possible to the opposite direction of the output of recording medium.In embodiment, transmission device 2 is located at print unit 4 Upstream, therefore first direction is the outbound course of recording medium.First linkage portion 27 moves to rubber roll bracket along first direction 43 lower sections, rubber roll bracket 43 is lifted.Preferably, the bottom surface of rubber roll bracket 43 is equipped with downwardly projecting position and the first linkage portion 27 cooperations.

The front end that second linkage portion 22 is located at rack gear 23 protrudes out away to the outbound course of recording medium.Second linkage portion 22 Opposite rack gear 23 is bent downward, and transmission device 2 is moved to recording medium outbound course, and the second linkage portion 22 can compress glue simultaneously Roller support 43 and switching bracket 62 so that rubber roll bracket 43 and switching bracket 62 are in discrete state, i.e., printing rubber roller 42 with Thermal print head 41 separates, and switching device 6 is separated with recycling axis 53.Second linkage portion 22 is strip bar portion, the second linkage portion 22 Bottom surface and rubber roll bracket 43, switching bracket 62 compress and place it in discrete state.Second linkage portion 22 has certain length, therefore In transmission device 2 into recording medium outbound course motion process, rubber roll bracket 43 and switching bracket 62 can be under discrete states Keep certain time.

Third linkage portion 24 and four-axle linkage portion 26 are located at the lower part of the rack gear 23, the linkage of third linkage portion 24 institute The pickup roller support 31 for stating printing device 100 rises, and link the decline of pickup roller support 31 in four-axle linkage portion 26.Specifically, The side of the rack gear 23 opens up horizontal concrete chute and forms the third linkage portion 24, picks up roller support 31 and is equipped with and third linkage portion The first connecting portion 34 of 24 cooperations, first connecting portion 34 can be slided in third linkage portion 24.The bottom surface of rack gear 23 forms described Four-axle linkage portion 26 is equipped with the lead-over groove 25 for being connected to the two between the third linkage portion 24 and four-axle linkage portion 26.When So, what four-axle linkage portion 26 can be opened up with 23 side of rack gear is located at another sliding slot of 24 lower section of third linkage portion, by rack gear 23 Bottom surface directly as four-axle linkage portion 26, reduce the volume etc. of rack gear 23.Using 28 bottom surface of main body as horizontal plane, third is linked Portion 24 and four-axle linkage portion 26 are horizontally disposed.

Rubber roll bracket 43 includes first support 432 and second support 431, and first support 432 is arranged with second support 431 On conveying roller, the both ends of printing rubber roller 42 are respectively equipped with first support 432, and the both ends of printing rubber roller 42 are articulated with first support On 432.Elastic component 46 connecting the two is equipped between first support 432 and second support 431, elastic component 46 can generate elasticity Power, printing rubber roller 42 are pressed in the presence of a tensile force on thermal print head 41.The bottom surface of first linkage portion 27 and second support 431 connects Touching raises rubber roll bracket 43 and 42 entirety of printing rubber roller.First support 432 protrudes out strip arm and forms second connecting portion 44.The end of the second connecting portion 44 is equipped with protrusion 45, sets switching bracket 62 when protrusion 45 is contacted with the second linkage portion 22 In discrete state.

It picks up roller arrangement 3 to include pick-up roller 32, shaft 33 and pick up roller support 31, shaft 33 is rotatably arranged at pick-up roller It is driven power effect rotation on bracket 31, states pick-up roller 32 and is set in the shaft 33, rotated synchronously with shaft 33, pick-up roller Bracket 31 rises or falls with third linkage portion 24 or the cooperation of four-axle linkage portion 26.Specifically, one end of shaft 33 is equipped with first Gear 36, when the pickup roller support 31 is in down position with the cooperation of third linkage portion 24, the rotation of pick-up roller 32 and contact note Recording medium can push recording medium to print unit 4.It picks up roller support 31 and the cooperation of four-axle linkage portion 26 is in lifting position When, pick-up roller 32 stops operating and separates with recording medium, and pick-up roller 32 stops the push to recording medium and acts on.

Picking up roller support 31 includes first connecting portion 34, and the main body 28 for picking up roller support 31 protrudes out strip arm and formed First connecting portion 34, first connecting portion 34 are plugged in third linkage portion positioned at the end of first connecting portion 34 comprising cylindrical body 35 In 24.34 relative level of first connecting portion is obliquely installed, and towards the opposite direction inclination that recording medium exports, is had and third Linkage portion 24, four-axle linkage portion 26 cooperate more smoothly effect.Preferably, the tilt angle of 34 relative level of first connecting portion A is 30 ° to 60 degree.Pick-up roller 32 is contacted with recording medium, and pick-up roller 32 rolls on recording medium surface, generates rub therebetween Power is wiped, recording medium moves under frictional force effect.

Switching device 6 includes switching bracket 62, second gear 61 and third gear, and switching bracket 62 is rotatably sleeved on On the conveying roller of printing device 100, switching bracket 62 includes main body 28 and protruding out from the main body 28, there is bending to tie The linking arm 63 of structure, linking arm 63 are linked and rotate the switching bracket 62 around the conveying roller.Second gear 61 is arranged It is rotated synchronously on the conveying roller, and with the conveying roller.Third gear is rotatably arranged on the switching bracket 62, with The switching bracket 62 is swung around the conveying roller, and is recycled axis 53 with the carbon ribbon 52 of the printing device 100 after swinging and connect Or separation.It furls carbon ribbon 52 with connecting or separating for axis 53, control recycling axis 53 is recycled by switching device 6 or stops furling dynamic Make.

The end of the linking arm 63 is equipped with cylinder 64 outstanding, and the middle part of the linking arm 63 is bent to form linkage knot The protrusion 45 of structure, second connecting portion 44 catches on linkage structure, and linking arm 63 is lifted and connect third gear with recycling axis 53. And cylinder 64 is acted on by third linkage portion 24, is forced down linking arm 63 and is connect third gear with recycling axis 53.

In embodiment, driving device 8 includes the first driving group 81, the second driving group, and the first driving group 81 drives pick-up roller The movement of device 3 and transmission device 2, the second driving group drive the rotation of conveying roller.First driving group 81 includes the first driving member 82, driving force is transmitted to first gear 36 and transmission device 2 by the first driving member 82.

Working condition:

Original state, transmission device 2 are located at initial position, and four-axle linkage portion 26 and pickup roller support 31 cooperate, pick-up roller 32 separate with recording medium.Second linkage portion 22 cooperates with rubber roll bracket 43, switching bracket 62, printing rubber roller 42 and thermal print head 41 Separation, third gear are separated with recycling axis 53.

Transport status: to first position, first position is for the opposite direction linear movement that transmission device 2 is exported to recording medium The rear end of transmission device 2 with frame 11 locating piece against position, at this time pick-up roller 32 decline and contacted with recording medium, It picks up roller support 31 and third linkage portion 24 cooperates, rubber roller and thermal print head 41 are in discrete state.The driving of first driving group 81 passes Device 2 is moved to recording medium outbound course linear movement, pick-up roller 32 pushes out recording medium along outbound course.

Print state: after delivery phase, recording medium is reached at printing rubber roller 42, and transmission device 2 continues to recording medium Outbound course movement, the first linkage portion 27 move to the lower section of rubber roll bracket 43 and are lifted rubber roll bracket 43, printing rubber roller 42 against On thermal print head 41.Four-axle linkage portion 26 and pickup roller support 31 cooperate, and pick-up roller 32 is separated with recording medium, rubber roll bracket 43 Linkage switching bracket 62, third gear are connect with recycling axis 53.

Above description is merely a prefered embodiment of the utility model, is not intended to limit the utility model, for For those skilled in the art, various modifications and changes may be made to the present invention.All spirit and original in the utility model Within then, any modification, equivalent replacement, improvement and so on be should be included within the scope of protection of this utility model.

Claims (10)

1. being applied to the transmission device of printing device characterized by comprising

Main body is connect with the frame of printing device, and is driven under power effect and can be transported along recording medium transporting direction reciprocal linear It is dynamic；

Ratcheting portion is formed in the side of the main body, engages connection with the gear with driving device；

First linkage portion is projected upwards in the upper face of the main body, moves to first along first direction in the main body The rubber roll bracket of the printing device of linking when dynamic position rises；

Second linkage portion is protruded out in the front end in the ratcheting portion to the outbound course of the recording medium, in the main body along Link the rubber roll bracket decline when counter motion in one direction to the second linkage position；

Third linkage portion is formed in the side of the main body, is risen with the pickup roller support with the printing device that links；

Four-axle linkage portion is formed in the side of the main body, is declined with the pickup roller support that links.

2. the transmission device according to claim 1 applied to printing device, which is characterized in that the transmission device one It is made.

3. the transmission device according to claim 2 applied to printing device, which is characterized in that the side of the main body is set There is rack gear, the top surface of the rack gear is equipped with engaging tooth shape into the ratcheting portion, the third linkage portion and four-axle linkage portion It is located at the lower part of the rack gear.

4. the transmission device according to claim 3 applied to printing device, which is characterized in that open the side of the rack gear If horizontal concrete chute forms the third linkage portion.

5. the transmission device according to claim 4 applied to printing device, which is characterized in that the bottom surface shape of the rack gear At four-axle linkage portion, the lead-over groove for being connected to the two is equipped between the third linkage portion and four-axle linkage portion.

6. the transmission device according to claim 5 applied to printing device, which is characterized in that the front end of the rack gear is convex It stretches to form second linkage portion.

7. transmission system, which is characterized in that further include using including transmission device described in the claims 1-6 any one To carry the rubber roll bracket of printing rubber roller, and the pickup roller support to carry pick-up roller, first linkage portion with it is described The bottom surface of rubber roll bracket contacts and increase the rubber roll bracket, and second linkage portion compresses the rubber roll bracket and makes described Rubber roll bracket decline；The pickup roller support includes first connecting portion, and the first connecting portion and the third linkage portion cooperate And increase the pickup roller support, the first connecting portion and four-axle linkage portion cooperate and make under the pickup roller support Drop.

8. transmission system according to claim 7, which is characterized in that the side of the rubber roll bracket is equipped with the second connection Portion, second linkage portion compress the second connecting portion and decline the rubber roll bracket.

9. transmission system according to claim 8, which is characterized in that the side for picking up roller support is equipped with the first connection Portion, the first connecting portion include cylindrical body, and the cylindrical body and the third linkage portion cooperate and make the pickup roller support Rise, the cylindrical body and four-axle linkage portion cooperate and decline the pickup roller support.

10. printing device, which is characterized in that it further include print unit including transmission system as claimed in claim 7, it is described to beat Impression member includes printing rubber roller and thermal print head, and the printing rubber roller is located on the rubber roll bracket and rises with it or decline, described The matching relationship of both printing rubber roller and the thermal print head includes print state and discrete state.