CN201415527Y

CN201415527Y - Color band feed control device of thermal-sensitive printer

Info

Publication number: CN201415527Y
Application number: CN2009200280736U
Authority: CN
Inventors: 高本强
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-06-22
Filing date: 2009-06-22
Publication date: 2010-03-03
Anticipated expiration: 2019-06-22

Abstract

A color band feed control device of thermal-sensitive printer comprises a frame, a thermal-sensitive printing head and a rubber-covered roll, wherein the thermal-sensitive printing head is fixed on arotation shaft, and the rotation shaft and the rubber-covered roll are arranged on the frame, The color band feed control device of thermal-sensitive printer is characterized in that a pressing shaftis arranged parallelly to the rubber-covered roll and fixed on the rotation shaft through supporting stands on two ends, cloth passes through the clearance between the pressing shaft and the rubber-covered roll and then enters into the space between the thermal-sensitive printing head and the rubber-covered roll, and the rotation shaft is provided with an oscillating angle which leads the thermal-sensitive printing head or the pressing shaft to contact with the rubber-covered roll. The color band feed control device of thermal-sensitive printer can realize the intermittent working of color bands according to the arranging situations of space segments and character fields, thus a large amount of consumables can be saved.

Description

A kind of colour band charging control device of thermal printer

Technical field

The utility model relates to a kind of PRN device, specifically a kind of colour band charging control device of thermal printer.

Background technology

At present, in existing temperature-sensitive banner printing equipment, colour band and cloth are advanced in unison, and promptly cloth is the same with the length that colour band passed through in the unit interval, but in the reality printing, especially in the print procedure of vertically hung scroll, between word of printing and the word spacing is arranged, when through word space, caused the waste of colour band, especially when the spacing between word and the word was big, the waste of colour band was more outstanding.Also there is not scheme at present about this respect improvement.

The utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art and colour band charging control device that a kind of thermal printer is provided, and this device can be realized the colour band intermittent movement according to the situation that is provided with of clear band and character field.

The technical scheme in the invention for solving the technical problem is: the colour band charging control device of this thermal printer, comprise frame, thermal printing head and rubber roll, thermal printing head is fixed in the rotating shaft, described rotating shaft and rubber roll are arranged on the frame, it is characterized in that: a compression axis parallel with rubber roll is fixed in the rotating shaft by the two end supports frame, colour band directly enters between thermal printing head and the rubber roll, after the cloth below the colour band is by the gap between compression axis and the rubber roll, enter again between thermal printing head and the rubber roll, rotating shaft be provided with a pivot angle make thermal printing head and compression axis the two one of contact with rubber roll.

During normal the printing, thermal printing head contacts with rubber roll, drives cloth and ribbon motion and realize printing under the effect of rubber roll driving force; When running into null field, rotating shaft separates thermal printing head and rubber roll in angle of effect lower swing of drive motors, and colour band stops to move, and compression axis contacts with rubber roll, under compression axis and the rubber roll effect, makes cloth continue to move.After null field was passed through, rotating shaft resetted, and cloth and colour band are synchronized with the movement and realize printing under the effect of rubber roll driving force.

The beneficial effects of the utility model are: this device can be realized the colour band intermittent movement according to the situation that is provided with of clear band and character field, effectively saves consumptive material, reduces cost.

The figure explanation

Fig. 1 is a print state schematic diagram of the present utility model;

Fig. 2 is a colour band halted state schematic diagram of the present utility model;

Fig. 3 is a member decomposing schematic representation of the present utility model.

Among the figure: 1 rubber roll, 21 rotating shafts, 22 thermal printing heads, 23 compression axises, 24 bracing frames, 3 clothes, 4 colour bands.

The specific embodiment

As Fig. 1, shown in Figure 3, the colour band charging control device of thermal printer, comprise frame, thermal printing head 22 and rubber roll 1, thermal printing head is fixed in the rotating shaft 21, and described rotating shaft 21 and rubber roll 1 are parallel is arranged on the frame and the end is connected a motor respectively.Rubber roll 1 unidirectional rotation under its motor effect, rotating shaft 21 can be swung in the certain angle scope according to the word space setting under its motor effect, make thermal printing head and compression axis the two one of contact with rubber roll.

Parallel with rubber roll 1 axis and rotating compression axis 23 is fixed in the rotating shaft 21 by two ends columnar stays frame 24, thermal printing head 22 be positioned at rubber roll directly over, compression axis 22 is positioned at the rear of rubber roll, colour band 4 directly enters between thermal printing head and the rubber roll, enters between thermal printing head and the rubber roll after the cloth below the colour band 3 is by the slit between compression axis and the rubber roll again.Rotating shaft 21 can be swung under the effect of end drive motors, shows as Fig. 1, and when the vertically hung scroll design belonged to character field, thermal printing head 22 was pressed on rubber roll 1 top and implements to print, the synchronous charging of cloth and colour band, and exist a determining deviation between compression axis and the rubber roll this moment; Show as Fig. 2, when the vertically hung scroll design belongs to clear band, rotating shaft 21 drives thermal printing head 22 and compression axis 23 swings, thermal printing head separates with rubber roll, colour band 4 stops to move because of losing driving force, and this moment, compression axis 23 contacted with rubber roll, and cloth 3 continues to move forward into cloth under compression axis 23 and rubber roll 1 acting in conjunction, when treating that the vertically hung scroll design belongs to character field once more, repeat above-mentioned print job.So just, realized saving the purpose of colour band.

Claims

1, a kind of colour band charging control device of thermal printer, comprise frame, thermal printing head and rubber roll, thermal printing head is fixed in the rotating shaft, described rotating shaft and rubber roll are arranged on the frame, it is characterized in that, one compression axis that be arranged in parallel with rubber roll is fixed in the rotating shaft by the two end supports frame, and cloth enters between thermal printing head and the rubber roll after by the slit between compression axis and the rubber roll, and rotating shaft is provided with a pivot angle makes thermal printing head contact with rubber roll with one of compression axis.