CN100416236C

CN100416236C - Print head replacing device for price-labelling scale

Info

Publication number: CN100416236C
Application number: CNB2005100258940A
Authority: CN
Inventors: 倪玖林; 吴一林; 张琪; 杜崴
Original assignee: SHANGHAI TERAOKA ELECTRONIC CO Ltd
Current assignee: SHANGHAI TERAOKA ELECTRONIC CO Ltd
Priority date: 2005-05-18
Filing date: 2005-05-18
Publication date: 2008-09-03
Anticipated expiration: 2025-05-18
Also published as: CN1865869A

Abstract

The present invention relates to a print head changing device in a price label scale, which comprises a print head (1) which is fixed with a print head support frame (2). The position on the print head support frame (2), where the print head (1) is arranged, is provided with two through holes (21), and the lower edge of the front end of the print head support frame (2) is provided with two hook-shaped feet (22). At the corresponding point of two through holes (21) of thee print head support frame (2), a print head regulating support frame (3) is provided with two pressure regulating screw nails (31) sheathed with a spring respectively, and the corresponding point of the two hook-shaped feet (22) of the print head support frame is provided with two holes (32). The printing head support frame (2) is arranged on the printing head regulating support frame (3). Due to the fact that the print head is fixed on the print head support frame, whereas, the printing head support frame is glidingly connected with the print head regulating support frame by the two hook-shaped feet, and the print head support frame is taken off, the print head outside the price label scale can be conveniently changed.

Description

Change head device in the price-labelling scale

Technical field

The present invention relates to a kind of price-labelling scale, relate in particular in this price-labelling scale and change head device.

Background technology

Price-labelling scale is a kind of electronic price computing scale, is mainly used in supermarket, the hypermarket; The article that client weighs needs are placed on the scale pan of this price-labelling scale, and this scale prints corresponding price tag.

As seen from Figure 1: price-labelling scale generally comprises the scale pan 101, base 102 and shows 103 3 parts, and also comprises printer module in the cavity of base: printer paper and printhead; Generally, because price-labelling scale frequently uses, need often to change printhead.

At present, the price-labelling scale ubiquity that has printer on the market is changed the problem of printhead trouble, because their printhead is fixed on the printer organization with screw, generally just can fix printhead with two screws at least, and screw is generally all very little, so very inconvenient in the inner dismounting of price-labelling scale.

Summary of the invention

The technical issues that need to address of the present invention have provided in a kind of price-labelling scale and have changed head device, are intended to solve above-mentioned defective.

In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:

The present invention includes printhead; Also comprise a printing head support part and a printhead adjusting support; Described printhead and printing head support part are fixed, and printing head support part has two through holes in the position of settling printhead, and the pin of two hook-types is arranged at the place, front end lower edge of printing head support part; Described printhead is regulated support to be had two pressure set screw that are with spring, in the pin corresponding position of two hook-types of printing head support part two holes is arranged in two through hole corresponding positions of printing head support part; Printing head support part is placed in printhead and regulates on the support.

Compared with prior art, the invention has the beneficial effects as follows: because printhead is fixed on the printing head support part, and the pin of two hook-types of printing head support part by wherein is slidingly connected with printhead adjusting support; Take off printing head support part, can change printhead in the price-labelling scale outside easily.

Description of drawings

Fig. 1 is the price-labelling scale structural drawing;

Fig. 2 is a decomposing schematic representation of the present invention;

Embodiment

Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:

As seen from Figure 2: the present invention includes printhead 1; Also comprise a printing head support part 2 and a printhead adjusting support 3; Described printhead 1 is fixing with printing head support part 2, and printing head support part 2 has two through holes 21 in the position of settling printhead 1, and the pin 22 of two hook-types is arranged at the place, front end lower edge of printing head support part 2; Described printhead is regulated support 3 to be had two pressure set screw 31 that are with spring, in pin 22 corresponding positions of two hook-types of printing head support part 2 two holes 32 is arranged in two through hole 21 corresponding positions of printing head support part 2; Printing head support part 2 is placed in printhead and regulates on the support 3;

Can also comprise: described printing head support part 2 has two projections 23 at place, lower edge, rear end, and printhead is regulated support 3 has a chute 33 in two projection 23 corresponding positions of printing head support part 2.

An end that has the hook-type pin in above-mentioned is the front end of printing head support part, and the other end is the rear end of printing head support part.

In the time will taking off printhead, firmly pin printhead, two springs on the compression pressure set screw, and printhead moved right, two hook-type pin that drive on the printing head support part move right, and skid off two holes from printing head support part, so just printing head support part is regulated support from printhead and taken off, from the price-labelling scale outside printhead is taken off from printing head support part again;

In the time will putting into printhead, earlier printhead is fixed on the printing head support part from price-labelling scale is outside, then two projections of printing head support part are inserted the chute place that printhead is regulated support, two pressure set screw that are with spring of printhead adjusting this moment support are withstood printhead by two holes of printing head support part, make camber of spring according to stressed size, simultaneously the pin of two hook-types of printing head support part is inserted printhead and regulate in two holes of support and be moved to the left, printhead installs like this.

Claims

1. change head device in a price-labelling scale, comprise printhead (1); It is characterized in that: also comprise a printing head support part (2) and a printhead adjusting support (3); Described printhead (1) is fixing with printing head support part (2), and printing head support part (2) has two through holes (21) in the position of settling printhead (1), and the pin (22) of two hook-types is arranged at the place, front end lower edge of printing head support part (2); Described printhead is regulated support (3) to be had two pressure set screw (31) that are with spring, in pin (22) corresponding position of two hook-types of printing head support part (2) two holes (32) is arranged in two through holes (21) corresponding position of printing head support part (2); Printing head support part (2) is placed in printhead and regulates on the support (3).

2. change head device in the price-labelling scale according to claim 1, it is characterized in that and can also comprise: described printing head support part (2) has two projections (23) at place, lower edge, rear end, and printhead is regulated support (3) has a chute (33) in two projections (23) corresponding position of printing head support part (2).