CN2677893Y - Electronic weighing balance with printer - Google Patents

Abstract

The utility model provides an electronic price computing scale, which comprises a scale pan, a casing and a bottom seat, wherein, the scale pan is supported by the upper surface of the casing, and a pallet is fixed with a sensor on the bottom seat on which the casing is buckled; the front and the rear surfaces of the casing are respectively provided with a customer display surface and a main display surface. The bottom seat is provided with a sensor part, an electric part, a power part and a printer part respectively, wherein, the sensor part and the electric part which are adjacent mutually are fixed on the front and the rear positions of the bottom seat, and the power part and the printer part are respectively fixed to and arranged on both sides of the bottom seat; the electric part is provided with a communication interface board, an analog to digital converter and a system board; a bush button for controlling the opening of a paper box door is arranged using lever principle for the convenience of the replacement of printer paper. The utility model has the advantages of compact structure and convenient use; in addition, by electric connection with a cashbox, the functions of weighing, pricing and cashing can be integrated.

Description

Print electronic price computing scale

Technical field

The utility model belongs to a kind of electronic price computing scale, and particularly a kind of compact conformation is easy to use, and can integrate the printing electronic price computing scale of electronic scales and cashier's machine.

Background technology

Electronic price computing scale is accurate with its weighing, numeral shows, reads conveniently and is used widely.The technical development of electronic scales at present all is to write an article around improving the degree of accuracy of measuring and being convenient for people to reading of data, has often ignored the inner structure group of electronic scales and has established, and causes maintenance difficult.Especially printer partly because often will change printer paper, the frequency of unlatching wants high than other parts, irrational mix can be made troubles to the user, even increases spoilage.In addition, in mega-store or supermarket, the use of electronic scales all is to locate to be provided with some electronic scaless free of variety classes commodity usually, treat that weighing is printed after, unify cash register to cashier.Along with expanding economy, middle or small chain store is more and more, concerning these shops, if still adopt metering earlier, print little of individual event, and then, first the client is brought inconvenience to cashier scanning cash register, second concerning businessman, two equipment had not only taken originally with regard to little space but also had brought the management trouble of manpower and materials.

Summary of the invention

In order to satisfy the requirement that these medium and small operators improve the efficiency of management, the utility model provide a kind of integrate weigh, printing, cash register management function and part placement compactness, easy to operate electronic price computing scale.

The utility model comprises the scale pan, shell and base three parts, and wherein upper surface of outer cover is lifted the scale pan by a pallet that is installed in this surface mesopore, and pallet fixes by screw and sensor; Shell is buckled on the base, the shell front-back is respectively equipped with client's display surface and main display surface, be separately installed with Sensor section on the described base, electronic section, power unit and printer four parts, described sensor is partly adjacent with electronic section, and be mounted on base front and back position place respectively, power supply and printer partly then are mounted on the both sides of base respectively, wherein electronics partly be provided with a communication interface plate and A/D converter adjacent, this communication interface plate comprises one and is used for linking to each other with PC, carry out the RS232C interface that continuous data communication and pricing table PLU (being PRICE LOOK UP) file transmits, two RS485 interfaces and a control interface that links to each other with cashier's machine with networking function, one master chip NEC UPD703100 and one is installed on motherboard has in addition write weighing, valuation, the flash memory AT49F8011-90TC of the control program of making statistical report form and pricing table PLU file.

Characteristics of the present utility model are that also described printer comprises button, printhead, printing wiring board and the carton frame that is installed on chassis side slot place, one rotating shaft is set on the printhead, respectively there is a switch small rack that colludes type at the two ends up and down of rotating shaft, and there is a spring in its outside central authorities.Small rack one end withstands on the roller bearing upper end of carton door, and spring is used for auxiliary stand opens door, and button is positioned at the below of printhead, a parallel with it block in addition.

This valuation scale is electrically connected with a cash box by the control interface that is installed on the communication interface plate then by the communication interface plate that chip UPD703100-33 (NEC) control that is installed on the motherboard links to each other with motherboard, realizes the unlatching of control cash box automatically.In addition, partly except that AC outlet is housed, chargeable storage is installed also at the power supply of base.

The utility model topology layout compactness, reasonable, operation, easy to maintenance; And sales management, report printing function of electronic price computing scale being shown quick, easy to operate and reliable and stable and electronic cash register etc. combine together, it can manage each transaction for the operator, and every transaction is all stored, consult for the operator or the tax bureau, but and uninterrupted power supply.

Description of drawings

Figure one is a decomposing schematic representation of the present utility model.

Figure two is shape assumption diagrams of the present utility model.

Embodiment

As shown in Figure 1, the utility model comprises the scale pan 1, shell 3 and base 8 three parts.Wherein shell is buckled on the base 8, and the shell front and back sides is respectively equipped with client's display surface and main display surface.Be separately installed with Sensor section on the described base, electronic section, power unit and printer four parts.At first sensor 5 is installed on the B place of base 8; Electronic unit is installed then, be about to the E place that A/D converter 7 is fixed on base 8, communication interface plate 10 and the A/D converter 7 adjacent G places that are installed on base 8, this communication interface plate 10 comprises one and is used for linking to each other with PC, carry out the RS232C interface that continuous data communication and pricing table (PRICE LOOK UP) file transmits, two RS485 interfaces and a control interface that links to each other with cashier's machine with networking function; Client's face display board 16 adjacent L places that are installed in base 8 with sensor, for convenience of client, client's face of the also optional tennis partner's arm of client type shows, because of arm type client face display structure is known by the public, thereby does not repeat them here.Then power unit and printer section are respectively in the both sides of this electronic scales, wherein AC Power supply socket 6 is installed in the D place of base 8, and transformer 4 is fixed on the C place of base 8; For printer, earlier button 13 is installed on the slot I place of base 8 sides, again with printhead 12 with print J and the H place that wiring board 11 is individually fixed in base 8, support 14 is fixed in the K place of base 8, again carton frame 15 is fixed in the sidewall M place of support 14 by pin.The motherboard part is installed then, earlier preceding display is installed on the mainboard 9, again mainboard 9 is fixed on the F place of base 8.Like this, the part on the base 8 installs, and covers shell 3 immediately.Upper surface of outer cover is lifted the scale pan by a pallet 2 that is installed in this surface mesopore.With pallet 2 by the A place of screw retention in sensor 5; At last the scale pan 1 is placed on the pallet and gets final product.From above-mentioned part assembly installation process, obvious the utility model integral layout compact and reasonable, the installation assembly is convenient and reliable.

The utility model is with weighing, valuation and cash register, especially multinomial article are added up the realization of the function of the unified cash register of valuation, mainly be by be installed on the motherboard 9 integrated chip NECUPD703100 and flash memory (FLASH MEMORY) AT49F8011-90TC realize.Weighing, valuation have been write among the chip AT49F8011-90TC, make the program of statistical report form and the control program of establishment PLU, according to varying in size of SRAM-storer on the chip, may command (comprises trade name with the PLU file of 300/1000/2000 weigh article and the non-article of weighing, unit price, tare weight) input is positioned at the SRAM-storer on the motherboard, i.e. BS616LV1010EC-70 (BSI).These PLU files can be linked to 20 departments of as many as by the RS485 interface that is installed on the communication interface plate.This chip UPD703100-33 (NEC) can take out the accounting logging that deposits in by control flash memory (FLASH MEMORY) AT49F8011; This chip is controlled motor-driven control chip provided LB1838M simultaneously, and the control printer comes out report printing.The utility model also can connect bar code scanner by the RS-232C interface on the communication interface plate, thereby promotes versatility of the present utility model.

The utility model is for ease of changing printer paper, and the utilization lever principle is provided with a cam structure on button.Its action principle is that a rotating shaft is set on printhead, respectively there is a switch small rack that colludes type at the two ends up and down of rotating shaft, small rack one end withstands on the roller bearing upper end of carton door, roller bearing is positioned at the inboard right hand edge of carton door, there is a spring in printhead rotating shaft outside central authorities, button is positioned at the below of printhead, a parallel with it block in addition.When promoting button, button promotes block, and block promotes the small rack of printer roll lower end simultaneously, drives the small rack on coaxial top, and small rack one end withstands on the roller bearing upper end of carton door, and door is opened, and relends to help the spring of printhead outside central authorities that door is flicked.Be that support is used for door is opened, spring is used for door is flicked, and the spring auxiliary stand is opened door.Utilization is installed in the exquisiteness design of the cam structure of printhead below button, as long as click shift knob 13 gently, carton door 15 flicks immediately, and the client just can easily change paper.

For optimum management, this valuation scale also can link to each other with a cash box, as shown in Figure 2.After printing valuation, by being installed in the control interface on the communication interface plate, the scale body is electrically connected with cash box 20, after weighing, valuation are finished, when needing gathering, by the control of this main frame chip on board, signal is transferred to control interface on the communication interface plate, then control cash box 20 and open automatically, after gathering finished, cash box was closed.Cash box and the valuation scale control cash register principle of valuating out between single is identical with the prior art cashier's machine herein, thereby repeats no more herein.

In addition, the utility model in order to guarantee uninterrupted power supply, except AC Power supply socket 6 is installed, has also been installed chargeable storage on base on structural design.When electronic scales connects AC power, whether no matter accumulator be installed, electronic scales can use AC power.When AC power was disconnected, electronic scales will use accumulator automatically.This accumulator has following function:

A. when electronic scales was worked under chargeable storage, if voltage is very weak, the accumulator pilot lamp on the electronic scales can be bright so.To such an extent as to when the voltage of accumulator becomes very low electronic scales can not correct calculation the time, demonstrations all except that the accumulator pilot lamp is bright all can be closed.Power supply just cuts off fully after 1 minute.

B. when accumulator positive in when charging, CHARGE will be bright.By master chip UPD703100-33 control, this electronic scales can detect the charging process of the voltage and the control accumulator of chargeable storage automatically like this.

Above-mentioned implementation example only is used for explanation, and unrestricted the utility model allly all should belong to category of the present utility model to its modifications and changes of doing in claim institute restricted portion.

Claims (4)

1. print electronic price computing scale for one kind, comprise the scale pan, shell and base three parts, wherein upper surface of outer cover is lifted the scale pan by a pallet that is installed in this surface mesopore, and pallet fixes by screw and sensor; Shell is buckled on the base, the shell front-back is respectively equipped with client's display surface and main display surface, be separately installed with Sensor section on the described base, electronic section, power unit and printer four parts, it is characterized in that sensor is partly partly adjacent with electronics, and be mounted on base front and back position place respectively, power supply and printer partly then are mounted on the both sides of base respectively, it is adjacent that wherein electronics partly is provided with a communication interface plate (10) and A/D converter (7), this communication interface plate comprises one and is used for linking to each other with PC, carry out the RS232C interface that continuous data communication and pricing table file transmit, two RS485 interfaces and a control interface that links to each other with cashier's machine with networking function, on motherboard, be equipped with one in addition and write weighing, valuation, the flash memory AT49F8011-90TC of making statistical report form program and pricing table PLU file.

2. printing electronic price computing scale according to claim 1, it is characterized in that described printer comprises button, printhead, printing wiring board and the carton frame at the slot place that is installed on chassis side, one rotating shaft is set on the printhead, respectively there is a switch small rack that colludes type at the two ends up and down of rotating shaft, small rack one end withstands on the roller bearing upper end that is positioned at carton door inside edge, there is a spring in printhead outside central authorities, and button is positioned at the below of printhead, a parallel with it block in addition.

3. printing electronic price computing scale according to claim 1 is characterized in that this valuation scale is electrically connected with a cash box by the control interface that is installed on the communication interface plate.

4. printing electronic price computing scale according to claim 1 is characterized in that being equipped with on the base chargeable storage.

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