CN213861486U

CN213861486U - Ribbon tensioning structure for printer

Info

Publication number: CN213861486U
Application number: CN202022268201.3U
Authority: CN
Inventors: 魏其华
Original assignee: Fuzhou Xingdaosheng Electronics Co ltd
Current assignee: Fuzhou Xingdaosheng Electronics Co ltd
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2021-08-03
Anticipated expiration: 2030-10-13

Abstract

The utility model provides a typewriter ribbon tensioning texture for printer, including the typewriter ribbon box body that is frame construction, the inside of typewriter ribbon box body is equipped with the first delivery wheel through typewriter ribbon interconnect in proper order, the second delivery wheel, the third delivery wheel, take-up pulley and fourth delivery wheel, the take-up pulley is installed in the tensioning frame, adopt above-mentioned technical scheme, use the syringe to pour into printing ink into to the inner bag through the right-hand member spindle nose, in the process that first delivery wheel, the second delivery wheel, the third delivery wheel, take-up pulley and fourth delivery wheel drive typewriter ribbon rotation, the inner bag rotation produces centripetal force, spout printing ink to send the black intracavity, the printing ink is transmitted to the core ring through the through-hole, paint printing ink on the typewriter ribbon through the core ring, when the printing ink that accumulates in the inner bag does not get into and send the black intracavity, can promote the push rod, the push rod promotes the push pedal, it sends the black intracavity to squeeze into with the ink with the inner bag inner accumulated, waste of ink is avoided, and thus a ribbon tension structure for a printer capable of ink replenishment is provided.

Description

Ribbon tensioning structure for printer

Technical Field

The utility model relates to a typewriter ribbon tension structure field of printer, in particular to typewriter ribbon tension structure for printer.

Background

In a transfer printer, the tape in the printer is typically referred to as a printer ribbon carrying ink on one side so that the printhead contacts the other side of the ribbon to transfer the ink from the ribbon to a target material, such as paper or a flexible film. Such printers are used in many applications.

The existing needle printer uses a ribbon cartridge which is generally composed of a cartridge body, a ring-shaped nylon soft ribbon impregnated with ink and other injection molding parts. When the device is used, the printing pinhead of the printer strikes the nylon soft belt according to the instruction of the controller, ink on the nylon soft belt is knocked and transferred to a recording medium, and conversion between an electric signal and a visible recording symbol is achieved.

In the printing process, as the ink is continuously consumed, the ink carried on the ink ribbon is gradually exhausted, so that the printing trace becomes shallow, and a brand new ink ribbon needs to be replaced or the ink needs to be replenished into an old ink ribbon. In view of the cost saving, a plurality of design schemes aim at prolonging the service life of the ribbon, and an ink replenishing device is arranged in the ribbon cartridge to replenish ink for the ribbon; therefore, it is an urgent problem to provide a tension structure for a printer ribbon that can replenish ink.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to solve the above problems of the prior art, the present invention provides a ribbon tensioning structure for a printer capable of ink replenishment.

(II) technical scheme

In order to achieve the above object, the utility model discloses a main technical scheme include:

a ribbon tensioning structure for a printer comprises a ribbon box body in a frame structure, wherein a first conveying wheel, a second conveying wheel, a third conveying wheel, a tensioning wheel and a fourth conveying wheel which are connected with each other through a ribbon are sequentially arranged in the ribbon box body, the tensioning wheel is installed in a tensioning frame and comprises a roller and an inner container, an ink core ring is sleeved on the outer surface of the roller, a plurality of through holes are uniformly distributed on the surface of the roller, the inner container and the roller are coaxially arranged, an annular cavity between the outer surface of the inner container and the inner wall of the roller is an ink conveying cavity, a left end shaft head and a right end shaft head are respectively arranged at two ends of the roller, the left end shaft head and the right end shaft head are respectively and rotatably installed in a fixing plate, the fixing plate is fixedly installed on the tensioning frame through a fixing piece, a push rod is sleeved in the left end shaft head, one end of the push rod is penetrated into the inner container, and a push plate is fixedly installed, the other end of the push rod penetrates through the outside of the ribbon cartridge, an annular connecting groove is formed in one end, away from the left end shaft head, of the inner container, the annular connecting groove enables the inner container to be communicated with the ink feeding cavity, and a one-way valve structure is arranged in the right end shaft head.

Preferably, the left upper end of the ribbon cartridge body is provided with a printing port for printing, and the printing port is rectangular.

Preferably, a sliding groove is formed in the tensioning frame, and the tensioning wheel is mounted in the sliding groove.

Preferably, the fixing member is a bolt.

Preferably, the two ends of the first conveying wheel, the second conveying wheel, the third conveying wheel and the fourth conveying wheel are fixed on the side wall of the ribbon box body, and the first conveying wheel is driven to rotate by the driving motor.

(III) advantageous effects

The beneficial effects of the utility model reside in that: adopt above-mentioned technical scheme, use the syringe to pass through the right-hand member spindle nose to the inner bag in pour into printing ink into, at first delivery wheel, the second delivery wheel, the third delivery wheel, take-up pulley and fourth delivery wheel drive typewriter ribbon pivoted in-process, the inner bag is rotatory to produce the centripetal force, throw printing ink jet get rid of to send the black intracavity, the rethread through-hole transmits printing ink to the ink core ring on, paint printing ink on the colour ribbon through the ink core ring, when storing up printing ink in the inner bag and not getting into and send the black intracavity, can promote the push rod, the push rod promotes the push pedal, with the crowded confession black intracavity of sending of the ink of deposit in the courage, the waste of printing ink has been avoided, thereby a typewriter ribbon tensioning structure for the printer that can carry out the ink replenishment is provided.

Drawings

FIG. 1 is a schematic diagram of a ribbon tensioning arrangement for a printer;

fig. 2 is a schematic cross-sectional view of the tensioner.

[ description of reference ]

1-a fourth delivery wheel; 2-a tensioning frame; 3-a tension wheel; 4-a third delivery wheel; 5-a second delivery wheel; 6-a first delivery wheel; 7-a chute; 8-a ribbon cartridge body; 31-a fixing member; 32-a push rod; 33-left end shaft head; 34-a fixed plate; 35-ink feed chamber; 36-a through hole; 37-a roller; 38-a one-way valve; 39-right end shaft head; 310-a ring-shaped connecting groove; 311-inner container; 312-a pusher plate; 313-core ring.

Detailed Description

For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings.

Referring to fig. 1 to 2, the present invention provides a ribbon tensioning structure for a printer, including a ribbon box 8 having a frame structure, a first conveying wheel 6, a second conveying wheel 5, a third conveying wheel 4, a tensioning wheel 3 and a fourth conveying wheel 1 connected to each other by a ribbon are sequentially disposed inside the ribbon box 8, the tensioning wheel 3 is installed in the tensioning frame 2, the tensioning wheel 3 includes a roller 37 and a liner 311, an ink core ring 313 is sleeved on an outer surface of the roller 37, a plurality of through holes 36 are uniformly distributed on a surface of the roller 37, the liner 311 and the roller 37 are coaxially disposed, an annular cavity between an outer surface of the liner 311 and an inner wall of the roller 37 is an ink feeding cavity 35, a left end shaft head 33 and a right end shaft head 39 are respectively disposed at two ends of the roller 37, the left end shaft head 33 and the right end shaft head 39 are respectively rotatably installed in a shaft head fixing plate 34, the fixing plate 34 is fixedly installed on the tensioning frame 2 by the shaft head 31, a push rod 32 is sleeved in the left end spindle nose 33, one end of the push rod 32 penetrates into the inner container 311 and is fixedly provided with a push plate 312, the other end of the push rod 32 penetrates out of the ribbon box body 8, one end of the inner container 311, which is far away from the left end spindle nose 33, is provided with an annular connecting groove 310, the inner container 311 is communicated with the ink feeding cavity 35 through the annular connecting groove 310, and a one-way valve 38 structure is arranged in the right end spindle nose 39; when the ink ribbon tensioning device is used, ink is injected into the inner container 311 through the right end shaft head 39 by using an injector, the first conveying wheel 6, the second conveying wheel 5, the third conveying wheel 4, the tensioning wheel 3 and the fourth conveying wheel 1 drive the ink ribbon to rotate, the inner container 311 rotates to generate centripetal force to spray and throw the ink into the ink feeding cavity 35, the ink is transmitted to the ink core ring 313 through the through hole 36, the ink is smeared on the ink ribbon through the ink core ring 313, when the ink accumulated in the inner container 311 does not enter the ink feeding cavity 35, the push rod 32 can be pushed, the push rod 32 pushes the push plate 312 to extrude the ink accumulated in the inner container into the ink feeding cavity 35, the waste of the ink is avoided, and therefore the ink ribbon tensioning structure for the printer, which can supplement the ink, is provided.

In this embodiment, the left upper end of the ribbon cartridge body 8 is provided with a printing port for printing, and the printing port is rectangular.

In this embodiment, be equipped with spout 7 in the tensioning frame 2, take-up pulley 3 installs in spout 7, and through the height of the tensioning wheel 3 in the adjustment tensioning frame 2, can directly connect the adjustment typewriter ribbon tensioning degree.

In this embodiment, the fixing member 31 is a bolt.

In this embodiment, the two ends of the first conveying wheel 6, the second conveying wheel 5, the third conveying wheel 4 and the fourth conveying wheel 1 are fixed on the side wall of the ink ribbon box 8, the first conveying wheel 6 is driven to rotate by the driving motor, and the ink ribbon is driven to rotate circularly among the first conveying wheel 6, the second conveying wheel 5, the third conveying wheel 4, the tension wheel 3 and the fourth conveying wheel 1 by the driving motor.

The working principle of the utility model is as follows: the ink is injected into the inner container 311 through the right end shaft head 39 by using the injector, in the process that the first conveying wheel 6, the second conveying wheel 5, the third conveying wheel 4, the tensioning wheel 3 and the fourth conveying wheel 1 drive the color ribbon to rotate, the inner container 311 rotates to generate centripetal force to spray and throw the ink into the ink delivery cavity 35, the ink is transmitted to the ink core ring 313 through the through hole 36, the ink is coated on the color ribbon through the ink core ring 313, when the ink stored in the inner container 311 does not enter the ink delivery cavity 35, the push rod 32 can be pushed, the push rod 32 pushes the push plate 312 to extrude the ink stored in the inner container into the ink delivery cavity 35, the waste of the ink is avoided, and the ink ribbon tensioning structure for the printer capable of supplementing the ink is provided.

The above embodiments are only embodiments of the present invention, not limiting the scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or directly or indirectly applied to the related technical fields, are included in the protection scope of the present invention.

Claims

1. A ribbon tensioning structure for a printer comprises a ribbon box body in a frame structure, wherein a first conveying wheel, a second conveying wheel, a third conveying wheel, a tensioning wheel and a fourth conveying wheel which are connected with one another through a ribbon are sequentially arranged in the ribbon box body, the ribbon tensioning structure is characterized in that the tensioning wheel is installed in the tensioning frame and comprises a roller and an inner container, an ink core ring is sleeved on the outer surface of the roller, a plurality of through holes are uniformly distributed on the surface of the roller, the inner container and the roller are coaxially arranged, an annular cavity between the outer surface of the inner container and the inner wall of the roller is an ink feeding cavity, a left end shaft head and a right end shaft head are respectively arranged at two ends of the roller, the left end shaft head and the right end shaft head are respectively and rotatably installed in a fixing plate, the fixing plate is fixedly installed on the tensioning frame through a fixing piece, and a push rod is sleeved in the left end shaft head, one end of the push rod penetrates into the inner container, a push plate is fixedly mounted on the push rod, the other end of the push rod penetrates out of the ribbon cartridge body, an annular connecting groove is formed in one end, away from the left end shaft head, of the inner container, the annular connecting groove enables the inner container to be communicated with the ink feeding cavity, and a one-way valve structure is arranged in the right end shaft head.

2. A ribbon tension structure for a printer as claimed in claim 1, wherein the ribbon cassette body has a printing opening for printing at a left upper end thereof, the printing opening having a rectangular shape.

3. A ribbon tension structure for a printer according to claim 1, wherein a slide groove is provided in the tension frame, and the tension pulley is mounted in the slide groove.

4. A ribbon tension structure for a printer according to claim 1, wherein the fixing member is a bolt.

5. The ribbon tensioning arrangement for a printer of claim 1, wherein the first feed wheel, the second feed wheel, the third feed wheel and the fourth feed wheel are fixed at opposite ends to a side wall of the ribbon cassette body, the first feed wheel being driven to rotate by a drive motor.