CN214727525U - Printing head assembly and printing device using same - Google Patents

Abstract

The utility model discloses a beat printer head assembly and use its printing device belongs to the technical field of sign printer. The utility model discloses a beat printer head subassembly is including installing left extension board, right extension board in the casing, install the printer head of beating between left extension board and the right extension board and be located the adjustment mechanism who beats printer head top, adjustment mechanism is used for adjusting the pressure that touches between printer head and the printing rubber roll, adjustment mechanism includes clamp plate, supporting component and is located the elastic deformation piece between clamp plate and the supporting component, the both ends of elastic deformation piece all are connected with the bottom of clamp plate, the bottom of elastic deformation piece and supporting component's top butt. The utility model discloses a beat printer head subassembly and pass through the adjustable pressure that touches between beating printer head and the printing rubber roll of adjustment mechanism, improve the printing quality.

Description

Printing head assembly and printing device using same

Technical Field

The utility model relates to a technical field of sign printer, in particular to beat printer head assembly and use its printing device.

Background

The identification printer includes a label printer, a line number printer, and the like. The label printer and the line size printer comprise a printing head and a printing rubber roller, the carbon ribbon and the label paper pass through the printing head and the printing rubber roller, and the printing head presses the carbon ribbon and the label paper on the printing rubber roller and heats the carbon ribbon to print the carbon powder on the label paper. At present, all parts in a printing head assembly are rigid structures, and the contact pressure between the printing head and a printing rubber roller cannot be adjusted, so that the printing quality is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a beat printer head assembly and use its printing device can solve one or more among the above-mentioned technical problem.

The utility model discloses a beat printer head subassembly is including installing left extension board, right extension board in the casing, install the printer head of beating between left extension board and the right extension board and be located the adjustment mechanism who beats printer head top, adjustment mechanism is used for adjusting the pressure that touches between printer head and the printing rubber roll, adjustment mechanism includes clamp plate, supporting component and is located the elastic deformation piece between clamp plate and the supporting component, the both ends of elastic deformation piece all are connected with the bottom of clamp plate, the bottom of elastic deformation piece and supporting component's top butt.

By adopting the technical scheme, the contact pressure between the printing head and the printing rubber roller can be adjusted.

In some embodiments, the pressing plate is provided with connecting pieces at corresponding positions of two ends of the elastic deformation piece respectively, an open slot is formed in each connecting piece, one end, far away from the elastic deformation piece, of each connecting piece is fixedly connected with the pressing plate, one end, close to the elastic deformation piece, of each connecting piece is bent downwards, and the end part of each elastic deformation piece extends into the corresponding open slot and moves in the corresponding open slot.

Through adopting above-mentioned technical scheme, stretch to both sides when being convenient for elastic deformation spare pressurized.

In some embodiments, a heat sink is disposed between the support assembly and the printhead.

Through adopting above-mentioned technical scheme, do benefit to the heat dissipation, improve the life who beats printer head.

In some embodiments, the supporting component comprises a first supporting plate, a second supporting plate and a third supporting plate from bottom to top in sequence, the first supporting plate is located on the heat dissipation plate, the elastic deformation piece abuts against the third supporting plate, and the first supporting plate is connected with the second supporting plate through a longitudinal screw.

By adopting the technical scheme, after the printing head assembly is assembled, the longitudinal position of the printing head is fixed.

In some embodiments, a fixed shaft is arranged on each of the left support plate and the right support plate, and a locking handle is arranged on the casing and matched with the fixed shaft.

Through the technical scheme, before the printing head assembly works, the locking handle hooks the fixed shaft, so that the printing head is pressed on the printing rubber roller.

Compared with the prior art, the utility model discloses a beat printer head subassembly and pass through the adjustable pressure that touches between beating printer head and the printing rubber roll of adjustment mechanism, improve the printing quality.

Another aspect of the present invention further provides a printing apparatus using the above printhead assembly. The utility model discloses a printing device is including installing the printing rubber roll in the casing, the rubber roll and the carbon ribbon recovery roller of form advancing, set up driving motor and gear drive system on the casing, gear drive system includes the output gear who is connected with driving motor, the printing rubber roll gear of being connected with the printing rubber roll, coaxial transmission gear wheel and the transmission pinion of setting on the casing, the carbon ribbon recovery roller gear of being connected with the carbon ribbon recovery roller of form advancing that is connected with the rubber roll of form advancing, output gear passes through first belt and prints rubber roll gear connection, print the rubber roll gear and be connected with the transmission gear wheel, the transmission gear wheel with form advancing rubber roll gear engagement, the transmission pinion is retrieved the roller gear with the carbon ribbon and is connected through the second belt.

Drawings

FIG. 1 is a schematic view of a first configuration of a printhead assembly according to the present invention;

FIG. 2 is a second schematic view of the printhead assembly of the present invention;

fig. 3 is a schematic structural diagram of the printing apparatus of the present invention;

fig. 4 is a schematic view of a partial structure of the printing apparatus of the present invention.

Reference numbers in the drawings illustrate: the printer comprises a machine shell 100, a printing head component 1, a left support plate 11, a right support plate 12, a fixed shaft 111, a printing head 13, a printing rubber roller 14, a paper feeding rubber roller 15, a carbon ribbon recovery roller 16, an adjusting mechanism 2, a pressing plate 21, a support component 22, a first support plate 221, a second support plate 222, a third support plate 223, an elastic deformation piece 23, a connecting piece 24, an open slot 241, a heat dissipation plate 25, a longitudinal screw 3, a locking handle 4, a driving motor 5, an output gear 51, a printing rubber roller gear 52, a transmission large gear 53, a transmission small gear 54, a paper feeding rubber roller gear 55 and a carbon ribbon recovery roller gear 56.

Detailed Description

To facilitate understanding of the present invention by those skilled in the art, the present invention will be further described with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the invention, are given by way of illustration only.

Fig. 1-2 schematically illustrate a printhead assembly of the present invention.

As shown in fig. 1 to 2, the printhead assembly 1 of the present invention includes a left support plate 11, a right support plate 12 installed in the casing, and a printhead 13 installed between the left support plate 11 and the right support plate 12, wherein the printhead 13 cooperates with a printing rubber roller 14 installed on the casing. The top of the print head 13 is provided with an adjusting mechanism 2 for adjusting the contact pressure between the print head 13 and the printing blanket 14. The adjusting mechanism 2 includes a pressure plate 21, a support assembly 22, and an elastic deformation member 23 located between the pressure plate 21 and the support assembly 22. Preferably, the elastic deformation member 23 is a plate spring. The two end parts of the elastic deformation piece 23 are movably connected with the bottom of the pressing plate 21, and the middle part of the elastic deformation piece 23 bends downwards, so that the elastic deformation piece 23 is approximately in a V shape. The bottom of the V-shaped elastic deformation member 23 abuts against the top of the support member 22. The pressing plate 21 is provided with connecting pieces 24 at corresponding positions of both end portions of the elastic deformation piece 23, and the connecting pieces 24 are provided with open grooves 241. One end of the connecting piece 24 far away from the elastic deformation piece 23 is fixedly connected with the pressing plate 21, and one end of the connecting piece 24 close to the elastic deformation piece 23 is bent downwards, so that the opening groove 241 is approximately L-shaped. The end of the elastic deformation member 23 extends into the opening groove 241 and moves in the opening groove 241. When an external force is applied to the pressing plate 21, the two end portions of the elastic deformation member 23 slide towards the two sides in the two opening grooves 241 and stretch, and when the external force is continuously applied, the elastic deformation member 23 is compressed, and then the pressure is transmitted to the supporting assembly 22 and the printing head 13, so that the contact pressure between the printing head 13 and the printing rubber roller 14 is adjusted.

Preferably, a heat dissipation plate 25 is provided between the support assembly 22 and the printhead 13. The heat dissipation plate 25 serves to prevent the printhead 13 from overheating, and to improve the lifespan of the printhead 13. The support assembly 22 includes a first support plate 221, a second support plate 222, and a third support plate 223 in this order from bottom to top. The first support plate 221 is positioned on the heat sink 25, and the elastic deformation member 23 abuts against the third support plate 223. The first support plate 221 and the second support plate 222 are connected by longitudinal screws 3. The longitudinal screw 3 may be used to fix the longitudinal position of the printhead 13 when the printhead assembly 1 is assembled, where longitudinal refers to the direction from the outside of the paper to the inside of the paper, the outside of the paper being the front, and the inside of the paper being the back.

Preferably, a locking handle 4 is provided on the housing. In operation, the locking handle 4 secures the printhead assembly 1 to the housing. The left support plate 11 and the right support plate 12 are also provided with a fixed shaft 111. The locking handle 4 is engaged with the fixed shaft 111. Before the printing head assembly 1 works, the locking handle 4 hooks the fixing shaft 111, so that the printing head is pressed on the printing rubber roller 14.

Another aspect of the present invention further provides a printing apparatus using the printhead assembly 1. As shown in fig. 3-4, the printing apparatus of the present invention includes a printing roller 14, a paper feeding roller 15 and a thermal transfer ribbon recovery roller 16 mounted on a support in the casing 100. The shell is provided with a driving motor 5 and a gear transmission system. The gear transmission system comprises an output gear 51 connected with an output shaft of the driving motor 5, a printing rubber roll gear 52 sleeved on the printing rubber roll 14, a transmission large gear 53 and a transmission small gear 54 coaxially arranged on the casing 100, a paper feeding rubber roll gear 55 sleeved on the paper feeding rubber roll 15 and a carbon ribbon recovery roller gear 56 sleeved on the carbon ribbon recovery roller 16. The output gear 51 is connected with the printing rubber roller gear 52 through a first belt, the printing rubber roller gear 52 is meshed with the transmission large gear 53, the transmission large gear 53 is meshed with the paper feeding rubber roller gear 55, and the transmission small gear 54 is connected with the carbon ribbon recovery roller gear 56 through a second belt. The gear transmission system is vertically arranged on the casing 100, so that the space is saved, and the volume of the printing device is reduced.

When the carbon ribbon recovery device is used, the driving motor 5 works, the output gear 51 drives the printing rubber roll gear 52, the printing rubber roll gear 52 drives the printing rubber roll 14 to rotate, meanwhile, the printing rubber roll gear 52 drives the transmission large gear 53 and the transmission small gear 54, the transmission large gear 53 drives the paper feeding rubber roll 15 to rotate, and the transmission small gear 54 drives the carbon ribbon recovery roller 16.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims (6)

1. A printhead assembly, comprising: including installing left extension board, right extension board in the casing, installing left side extension board with beat printer head between the right extension board and be located beat the adjustment mechanism at printer head top, adjustment mechanism is used for adjusting beat printer head and print the contact pressure between the rubber roll, adjustment mechanism includes clamp plate, supporting component and is located the clamp plate with elastic deformation spare between the supporting component, elastic deformation spare both ends all with the bottom of clamp plate is connected, elastic deformation spare the bottom with supporting component's top butt.

2. The printhead assembly of claim 1, wherein: the clamp plate is in the relevant position punishment at elastic deformation spare both ends do not sets up the connecting piece, set up the open slot on the connecting piece, the connecting piece is kept away from the one end of elastic deformation spare with clamp plate fixed connection, the connecting piece is close to the one end of elastic deformation spare is buckled downwards, the tip of elastic deformation spare stretches into in the open slot and in the open slot internalization.

3. The printhead assembly of claim 1, wherein: a heat dissipation plate is disposed between the support assembly and the printhead.

4. A printhead assembly according to claim 3, wherein: the support assembly sequentially comprises a first support plate, a second support plate and a third support plate from bottom to top, the first support plate is located on the heat dissipation plate, the elastic deformation piece is abutted to the third support plate, and the first support plate is connected with the second support plate through a longitudinal screw.

5. The printhead assembly of claim 1, wherein: the left support plate and the right support plate are both provided with fixed shafts, the shell is provided with a locking handle, and the locking handle is matched with the fixed shafts.

6. A printing apparatus employing the printhead assembly of any of claims 1 to 5, wherein: including installing print the rubber roll in the casing, form advance rubber roll and carbon ribbon recovery roller, set up driving motor and gear drive system on the casing, gear drive system include with output gear that driving motor connects, with print printing rubber roll gear, coaxial setting that the rubber roll is connected and be in drive gear wheel and drive pinion on the casing, with form advance the rubber roll gear of form advancing that the rubber roll is connected and with the carbon ribbon recovery roller gear that the carbon ribbon recovery roller is connected, output gear through first belt with print rubber roll gear connection, print the rubber roll gear with drive gear wheel connection, drive gear wheel with form advancing rubber roll gear engagement, drive pinion with the carbon ribbon recovery roller gear passes through the second belt and connects.

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