CN2352343Y - Type writer for automatically printing bills or receipt - Google Patents

Abstract

The utility model relates to a typewriter for automatically printing bills or receipts, which comprises a display screen, a keyboard, a power supply, a microprocessor, a detecting sensor, an automatic prearranged-paper / single-paper feeding mechanism, a character carriage moving mechanism and a character carriage character selecting and printing mechanism. The character carriage character selecting and printing mechanism is arranged on a printing character carriage through a shaft. A side plate of a base is provided with two guide pillars; the character carriage is arranged on the guide pillars; a synchronous tooth-shaped belt in the character carriage moving mechanism is fixed on the character carriage; a tooth-shaped wheel drives the synchronous tooth-shaped belt; the automatic prearranged-paper / single-paper feeding mechanism is arranged in a frame. The utility model can complete printing various different bills or receipts by operating the keyboard of the machine only without being connected with a computer or other machines.

Description

Automatic bill printer

The utility model relates to a kind of printer, particularly a kind of automatic bill printer.

Existing cheque punch all will connect with computer or other facility, just can finish the printing of various different bills, and the scope of application is subjected to certain limitation, and is convenient and practical inadequately.

The purpose of this utility model is to provide a kind of the need to connect with computer or other facility, only needs this switch of operation dish, can finish the automatic bill printer of various different bill printings.

The purpose of this utility model can reach by following measure: the utility model comprises display screen, frame, keyboard, power supply, it is characterized in that: also have microprocessor, detecting sensor, automatically give and put paper/sheet-fed paper advance mechanism, word car motion, word car word selection, printing mechanism, word car word selection, printing mechanism is installed in by axle and prints on the word car, the side plate of support, on two guide pillars are arranged, the word car is movable to be loaded on the guide pillar, synchronous cog belt in the word car motion is fixed on the word car, toothed wheel can drive synchronous cog belt, gives automatically putting paper/sheet-fed paper advance mechanism and being loaded in the frame.

The purpose of this utility model can also reach by following measure: the stepper motor in word car word selection, the printing mechanism is by gear on it and the engagement of the circle of the tooth on the character wheel, character wheel and drive unit thereof are installed in two side stands and reach, be installed in the rotating shaft on the side plate cam is housed, cam can promote to be contained on the support axle and on the roller adorned, also be equipped with antifouling on the word car, on character wheel, be provided with sensor, in rotating shaft, be provided with sensor.Stepper motor in the word car motion passes through the gear set drive synchromesh gear, the gear driven synchronous cog belt, and synchronous cog belt is provided with sensor.Automatically give that to put paper/sheet-fed paper advance mechanism middle gear and paper feed wheel affixed with axle, stepper motor is by gear set drive paper feed wheel, and axle is provided with the paper feeding wheel clutch, and paper feed stops that wheel is affixed with axle, on the axle paper feed is housed and stops the wheel clutch.In the paper feeding wheel clutch, annular concentric step, ring-shaped jacket are arranged on the gear, turn one end colludes in the groove of ring-shaped jacket, and the other end colludes in the groove of disk, and gear can be enclosed within axle and upward freely rotate, and disk is affixed with axle.

Fig. 1 is a contour structures schematic diagram of the present utility model;

Fig. 2 is the structural representation of word car word selection, printing mechanism;

Fig. 3 is the structural representation of word car motion;

Fig. 4, Fig. 5 give the structural representation of putting paper/sheet-fed paper advance mechanism automatically;

Fig. 6, Fig. 7 are the structural representation of paper feed clutch;

Fig. 8 stops the structural representation of taking turns clutch for paper feed;

Fig. 9 is an electrical schematic diagram of the present utility model.

The utility model is described in further detail below in conjunction with accompanying drawing (embodiment):

Among Fig. 1, keyboard 4 comprises 0 to 9 numerical key, the decimal key that is used to import data, letter key, the operation control key that carries out various operational example such as affirmation, paper feed, printing, setting, modification or the like.Display screen 1 except as the data that show input also as the prompting of operations.The paper that printing finishes is sent outside the machine by exit slot 3.The 2nd, sheet-fed is sent into mouth.

As Fig. 2, stepper motor 24 drives character wheel by the engagement of the gear ring on gear on it 13 and the character wheel 11 in the printing mechanism 107.Be carved with the whole required character that is used to print on the external cylindrical surface of character wheel.Character wheel 11 rotates according to its core 14 and makes the character that needs to print forward assigned position to.Character wheel and drive unit thereof are installed on two side stands 21,22, and the integral body of being made up of side stand 21,22 and other parts is installed on the printing word car 15 by axle 18.Word car 15 can move on two guide pillars 16,17 on the side plate 40,41 that is fixed in support, and character is printed on the assigned position of paper.Be installed in and adorn a cam 20 in the rotating shaft 19 on the side plate 40,41.Axle 19 whenever revolves and turns around, cam 20 promote to be contained on the support 21,22 axle 25 and on the roller 12 adorned, make support 21,22 and on character wheel 11 press to feed roller 56 and finish and once print action.Also adorn one antifouling 23 on the word car 15.Antifouling with word car motion, and it is between paper and the character wheel.Having the hole on antifouling 23 print position just in time makes the character that will print pass this hole to get on the paper.This has just stopped contacting of not selected character and paper.In this mechanism, also have two sensors 27,28 to detect the original position of character wheel 11 and rotating shaft 19 respectively.

Among Fig. 3, stepper motor 32 drives synchronizing jugged 37 rotations of taking turns by gear train 31,30,38.Toothed wheel 37 drives synchronous cog belt 33.This synchronous cog belt 33 is fixed in and drags it on the word car 15 and move on guide pillar 16,17.The original position of sensor 26 detected words cars.

Among Fig. 4, Fig. 5, put paper as giving in the use machine, it is affixed with axle 79 to give the gear 76,53 put in paper/sheet-fed paper advance mechanism 105 and paper feed wheel 56 automatically.Stepper motor 77 drives paper feed wheel 56 by gear train 74,75,76 and rotates.Gear 53 drives the gear 60 that is enclosed within on the axle 62 by idler gear 48.Paper feeding wheel 54 is affixed with its axle 62.Can gear 60 drive paper feeding wheel 54 and rotate the state (Fig. 6) that depends on clutch on the axle 62.Paper feed resistance shelves wheel 55 is affixed with axle 80.On the axle 80 one-way clutch (Fig. 8) is housed, it stops wheel 55 clockwise directions to rotate.The paper feed gap that keeps being equivalent to a piece of paper thickness between wheel 54 and the wheel 55.Contain carton inner panel 72 and be used to place print paper 70.Under spring 71 effects, make paper 70 press to paper feeding wheel 54 all the time.Paper feeding wheel 54 rotates counterclockwise and just drives paper 70 by the gap between wheel 54 and the wheel 55, thereby guarantees to have only a piece of paper to be transmitted.Paper feed pinch roller 52 nationality springs are pressed to paper feeding wheel 54.Paper under wheel 52, wheel 54 effects upwards transmitted be sent between paper feed wheel 56 and its pinch roller 58 through guide plate 81 after, paper is just by wheel 56 with take turns 58 transmission.Wheel 57,58 all is that the mat spring is pressed to wheel 56.When paper was sent to sensor 66 places, sensor 66 received paper and has transmitted the signal that puts in place.By on the one hand paper being sent to CPU at this moment between paper feed wheel 56 and antifouling 23, act on electromagnet 64 on the other hand, paper feeding wheel 54 is stopped operating.Paper receives printing between paper feed wheel 56 is with antifouling 23.Printed paper continues to be transmitted by wheel 56,58, is sent to exit slot 3 through guide plate 51.The paper that the user can finish printing is taken away.Sensor 78 is to lack paper to detect usefulness.As printing sheet-fed, the user puts into print paper from paper feed port 2, insert to paper feed wheel 56 and its pinch roller 57 through guide plate 50.Sensor 67 has received the paper signal and by CPU stepper motor 77 has been rotated to drive paper feed wheel 56 to rotate, and also acts on electromagnet 64 and does not make and get paper from containing carton.Sheet-fed through take turns 56,57, guide plate 50 is sent to wheel 56,58 places.After this just with in the top use machine give that to put paper identical, no longer repeat.

Among Fig. 6, Fig. 7, annular concentric step, ring-shaped jacket 87 are arranged on the gear 60, turn 88 one ends collude in 87 groove, and the other end colludes in the groove of disk 90.Gear 60 can be enclosed within on the axle 62 and freely rotate, and disk 90 is affixed with axle 62.Brake(-holder) block 63 is the axle center with 65.Electromagnet 64 actions spur brake(-holder) block 63 to the right, and the circular-arc part 68 on the brake(-holder) block is just embraced ring-shaped jacket 87.Gear 60 just can only dally on axle 62, has realized clutch.Spring 91 resets after the electromagnet dead electricity is provided.

Among Fig. 8, the structure and the mechanism shown in Figure 5 of part 84,83,82,92,80 are similar, no longer repeat herein.Be connected with a gear 86 on the paper feed wheel shaft 62.But have only the several teeth of only a few on the cylindrical of gear 86, gear 86 can only be stirred idler gear 92 by spells.The gear 84 that idler gear 92 and paper feed stop on the wheel and overlapped meshes.Paper feeding wheel 54 revolutions are moving to drive axle 80 rotations slightly once circle back handsetting gear 84 slightly, has guaranteed that paper feed stops that taking turns 55 does not stop paper feed at same position.Prolonged and taken turns service life of 55.

Among Fig. 9,102 is microprocessor, and 103 is detecting sensor, and 104 is power supply.The P0 mouth of IC1 (89C51) microprocessor is as bus.IC3, IC4 are used for latching and deciphering of address.Adopt dynamically to show, by the segment encode of IC5 control display tube.4 of taking turns out of IC6 are used to control display tube after IC9 decoding, corresponding selected pipe is lighted.Other 4 alignments as keyboard that IC6 takes turns out, the line of keyboard is by P2 mouth input CPU.IC7, IC8 can be respectively applied for 3 stepper motors of control and buzzer, direct current generator and electromagnet.The corresponding positions of P3 mouth be used to operate electrically-erasable memory IC2 and the time time-card IC11.The state of sensor W0-W7 reads in CPU by the P1 mouth.The model of readable and writable memory IC2 is 93C46; The model of latch IC3, IC5, IC6 is 74LS373; The model of decoder IC4 is 74LS138; The model of two four latch IC7, IC8 is 74LS116; The model of decoder IC9 is 74LS154; The model of calendar chip IC11 is DS12887.

Be setting, modification and the printing that example illustrates layout to print a check now in conjunction with electric principle schematic.

Check need be printed the date of draft and the amount of money.Wherein there is date of draft the Chinese capitalization to print time, month and date.The amount of money need be printed Chinese and reach Arabic numerals greatly surely.3 contents altogether.By the key secondary is set, CPU enters immediately service routine is set continuously, and the display screen shell goes out codeX.X.Wherein this group of numeral form of front is provided with numbering, the X item content during this group of numeral of back is provided with number.Every abscissa, ordinate, the type of printable character, capital and small letter, print pitch of importing top of form successively, the maximum printing figure place.Promptly press acknowledgement key after confirmation of every input, these group data promptly are accepted.The data that CPU will read in are just now deposited among the electrically-erasable serial storage IC2.If discovery is wrong, by re-entering behind the clear key.After finishing, this input promptly changes the setting of next content automatically over to.Promptly represent by acknowledgement key that this content is all imported and finish as not importing any data.Program changes the next item down automatically over to.If all projects are not imported data after setting completed and are promptly just represented by acknowledgement key that this group form is all imported and finish.

Only need when the user uses numbering is set again by confirming the strong print state that enters required form by input after key is set, put into a check from paper feed port after, paper feed mechanism is sent to print position with check automatically.Display screen is revealed " please import the amount of money ".The user only need import the amount of money, and it is promptly printable to press acknowledgement key after the confirmation.This machine inside has been equipped with clock chip IC11, automatically date printed.As next still printed checks then no longer need to reset numbering.

The utility model has following advantage compared to existing technology: rational in infrastructure, circuit is simple, Multiple functional, use easy to operately, do not need to be connected with computer or other facility, can be complete Become the printing of various bills.

Claims (5)

1, a kind of automatic bill printer, comprise display screen (1), frame (101), keyboard (4), power supply (104), it is characterized in that: also have microprocessor (102), detecting sensor (103), automatically give and put paper/sheet-fed paper advance mechanism, word car motion, word car word selection, printing mechanism, word car word selection, printing mechanism (107) is installed in by axle (18) and prints on the word car (15), the side plate of support (40), two guide pillars (16) are arranged (41), (17), the movable guide pillar (16) that is loaded on of word car (15), (17) on, synchronous cog belt (33) in the word car motion is fixed on the word car (15), toothed wheel (37) can drive synchronous cog belt (33), gives automatically putting paper/sheet-fed paper advance mechanism and being loaded in the frame (101).

2, printer according to claim 1, it is characterized in that: word car word selection, stepper motor in the printing mechanism (24) is by gear (13) on it and the round engagement of the tooth on the character wheel (11), character wheel and drive unit thereof are installed on two side stands (21) and (22), be installed in side plate (40), cam (20) is housed in the rotating shaft (41) (19), cam (20) can promote to be contained in support (21), (22) axle on (25) and on the roller (12) adorned, also be equipped with on the word car (15) antifouling (23), on character wheel (11), be provided with sensor (27), in rotating shaft (19), be provided with sensor (28).

3, printer according to claim 1 is characterized in that; Stepper motor (32) in the word car motion drives synchromesh gear (37) by gear train (31), (30), (38), and gear (37) drives synchronous cog belt (33), and synchronous cog belt (33) is provided with sensor (26).

4, printer according to claim 1 is characterized in that; Automatically give and put paper/sheet-fed paper advance mechanism (105) middle gear (76), (53) and paper feed wheel (56) is affixed with axle (79), stepper motor (77) drives paper feed wheel (56) by gear train (74), (75), (76), axle (62) is provided with the paper feeding wheel clutch, paper feed stops that wheel (55) is affixed with axle (80), on the axle (80) paper feed is housed and stops the wheel clutch.

5, according to claim 1 or 4 described printers, it is characterized in that: in the paper feeding wheel clutch, annular concentric step, ring-shaped jacket (87) are arranged on the gear (60), turn (88) one end colludes in the groove of ring-shaped jacket (87), the other end colludes in the groove of disk (90), gear (60) can be enclosed within axle (62) and upward freely rotate, and disk (90) is affixed with axle (62).

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