CN2148668Y - Printing press for bar code - Google Patents

Abstract

The utility model relates to a printing press for a bar code. The utility model has the essential technical point that the printing press comprises a heat sensitive printing head and a host control element, wherein, the heat sensitive printing head is composed of thick mode type heat sensitive printed sheets, a double stepping motor and a paper transferring wheel; the host control element which is composed of SCM chips, a data storing device and a program storing device serves for data storage and program control. A serial communication interface circuit, a keyboard circuit and a liquid crystal display circuit are connected with the SCM chips in the host control element; the heat sensitive printed sheets and the double stepping motor are connected with the output control end of the SCM chips via a drive circuit which is formed from an eight-D flip flop. The utility model has the advantages of high bar code printing quality, high speed, flexibility, convenience and simple operation.

Description

Printing press for bar code

The utility model relates to a kind of bar code printing machine, particularly utilizes the bar code symbol printing machine of temperature-sensitive technology and microelectric technique design.

Existing bar code printing machine divides machinery and electronic type two big classes, mechanical bar code printing machine (CN2063479U) is bar code symbol to be made offset plate carry out offset printing or make the bar code printing forme with the bar code numbers machine, realize the printing of bar code symbol, this equipment is printed the bar code poor quality, and bar code information is provided with dumb.Electronic type bar code printing machine (CN205474U) is a design bar code printing software, utilizes computer and dot-matrix printer (or laser printer) to print bar code.Problems such as above-mentioned bar code printing machine ubiquity printing quality is low, printing speed slow, use inconvenience.

The purpose of this utility model provides the printing machine of label certificates such as a kind of bar code symbol, Chinese character chart, it combines barcode encoding theory, microelectric technique and Machine Design, has advantages such as bar code printing quality height, speed is fast, flexible, use is simple.

The purpose of this utility model is achieved in that the bar code printing machine comprises a heat-sensitive type print head that is made of thick pattern temperature-sensitive printed sheet, two stepper motor and paper feed wheel and is made of singlechip chip, data memory, memory under program, links to each other with the output control terminal of singlechip chip by the drive circuit that is made of eight d type flip flops as data-storing and programme controlled host computer control element and the serial communication interface circuit, keyboard circuit, liquid crystal display circuit, temperature-sensitive printed sheet and the two stepper motors that link to each other with singlechip chip in this host computer control element.Information such as code system, barcode data, annotation information and printing number by keyboard circuit or serial communication interface output bar code are delivered to the host computer control element, this control element utilizes the work of software control heat-sensitive type print head, make it to finish bar code symbol, the printing of labels such as Chinese character chart, certificate.

The utility model is owing to adopted said structure, this bar code printing machine can be printed international bar code code system, can print the label of twenties kinds of forms, have Chinese character, English, japanese type kind, utilize keyboard or RS232 serial ports input data to realize that bar code symbol prints, is provided with bar code density etc. continuously, these bar code printing facility have the bar code of printing quality height, speed fast, flexible, use characteristics such as simple.

The utility model is described in further detail below by accompanying drawing.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the utility model circuit theory diagrams.

Fig. 3 is the thermal print head structural representation.

Describe concrete structure of the present utility model and operating process in detail according to Fig. 1-3.This bar code printing machine such as Fig. 1 are made of thermal print head 1, host control panel 6, keyboard 7, LCDs 2, power transformer 4, base 5, shell 3.Among Fig. 2,11 is cpu motherboard (8031 single-chip microcomputer), link to each other with RAM14 by data/address bus 12, all program is placed among the EPROM13, address bus 15 connects motherboard 11 and RAM14 is used for the information storage that data are handled, I/O mouths such as keyboard 19 and signal detection adopt 18(8255) the programmable interface chip, motor-driven and thermal print head drive and have then adopted eight d type flip flop 10(74HC273), when work, the user is by the code system of keyboard 19 input bar codes, barcode data, information such as annotation information and printing quantity, all input information are pointed out out on LCD 16, realize man-machine mutual.Also can adopt serial communication interface 17(RS232) carry out communication with computer, obtain code system, information such as barcode data are by motherboard 11(CPU) input signal is handled, stored, at last data are given temperature-sensitive seal 8 and drive stepper motor 9 and rotate, on paper, print out needed bar code, Chinese character chart etc.

Fig. 3 is the thermal print head structural representation, temperature-sensitive printed sheet 23 is installed on the frame 22,25 in Fig. 3, by heating to difference, respective point on heat-sensitive paper or the heat transfer colour ribbon is changed, produce needed horizontal figure line, and two stepper motors 20,21 go ahead paper through transmission mechanism drive paper feed wheel 24, so both can print off bar code and various pattern on paper.

Claims (1)

1, a kind of bar code printing machine, it is characterized in that it comprises a heat-sensitive type print head that is made of thick pattern temperature-sensitive printed sheet, two stepper motor and paper feed wheel and is made of singlechip chip, data memory, memory under program, link to each other with the output control terminal of singlechip chip by the drive circuit that constitutes by eight d type flip flops as data-storing and programme controlled host computer control element and the serial communication interface circuit, keyboard circuit, liquid crystal display circuit, temperature-sensitive printed sheet and the two stepper motors that link to each other with singlechip chip in this host computer control element.

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