KR20000013732A - Cutter device of printer for money register - Google Patents

Abstract

PURPOSE: A cutter device of a printer for a money register is provided to minimize or eliminate a jam phenomenon and achieve using convenience by controlling a paper cutting state with simple selection of a user. CONSTITUTION: The paper cutting state is controlled by an operating cam(31) contacted with an operating lever(33) of a control switch(32). A paper(50) is cut by a fixed cutter(42) and a driving cutter(41) which is inserted into a cam groove(23) formed in an operating wheel(22) and is simply operated up and down. The driving cutter(41) and the fixed cutter(42) serve as a spring(46) of a fixed bracket(44) installed on both sides of the cutters(41, 42).

Description

Cutter device of cash register printer

The present invention relates to a cutter device for cutting a printed sheet through a printer in a cash register printer for printing a slip or the like, and more particularly, a heart-shaped cam groove in which a shaft of a movable cutter is formed on an operation wheel. While inserted and driven up and down, the gap between the movable and fixed cutters can be easily adjusted to minimize paper jams, and precise cutting of paper and adjustment of cutting and full cutting as necessary. The present invention relates to a cutter device for a cash register printer, which is easily carried out and made extremely convenient to use, so that the product quality of the cash register printer can be further improved.

In the cutter structure of a conventional cash register printer, which is generally known, as shown in FIG. 1, a war that rotates in engagement with the worm gear 120 spoken to the rotating shaft 110a of the motor 110 installed inside the cash register is shown. The guide protrusion 140 protrudes horizontally to one side of the Um Hwi-il 130, and the guide protrusion 140 is inserted into the long groove 160 of the movable cutter 150 with the leaf spring 180 protruded at the rear end thereof. The lower side of the movable cutter 150 is provided with a fixed cutter 170 is configured to cut the printed paper 160 as the movable and fixed cutter (150, 170).

In the conventional printer cutter structure having the above-described configuration, when the worm gear 120 is rotated by the drive of the motor 110 and rotated to the rotating shaft 110a, the worm wheel 130 engaged with the worm gear 130 is rotated. By the rotation of the worm wheel 130, one side of the guide projection 140 is rotated integrally while the movable cutter 150 cranks up and down, and thus the movable cutter 150 and the lower working up and down The paper 160 is to be cut between the fixed cutter blade 170 of the.

However, in the conventional printer cutter structure as described above, as shown in Figure 1, when performing a long cutting operation worm gear 120 that rotates in the horizontal direction is a worm wheel 130 in a circular motion Not only wear is severely generated by friction with the wearer, and in particular, the cutting efficiency of the paper 160 is easily reduced because it is easily worn in the crossing process between the movable cutter 150 and the fixed cutter 170 which move up and down for cutting the paper 160. On the other hand, the gap between the movable and fixed cutters 150 and 170 is easily generated, and jams are easily generated due to jams in which the paper 160 is inserted. .

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and the object thereof is that the shaft of the movable cutter is inserted into the heart-shaped cam groove formed in the operation wheel to be driven up and down, while simplifying the gap between the movable and fixed cutters. It is possible to minimize the occurrence of paper jams and to make precise cutting of paper and to adjust the cutting and perfect cutting as needed, making the use of the cash register printer extremely convenient. An object of the present invention is to provide a cutter device for a cash register printer whose quality is further improved.

1 is a schematic configuration diagram showing a cutting state of a conventional cash register printer;

Figure 2 is a front configuration diagram showing a cutter device of the cash register printer according to the present invention

Figure 3 is a schematic diagram showing an operation cam of the cutter device installed in the printer of the present invention

Figure 4 is a plan view of the main portion showing the interval adjustment state of the movable and fixed cutter in the cutter device of the printer of the present invention

5 (a) and 5 (b) are schematic diagrams showing cutting and full cutting states of paper in the cutter device of the present invention.

Explanation of symbols on the main parts of the drawings

1 .... Printer 10 ... Cutter Unit

20 ... Drive 21 Cutter Shaft

22 .... Working wheel 23 .... Heart-shaped cam groove

24 .... Worm Gear 30 .... Cutting Control

31 .... Operation Cam 32 .... Operation Switch

34 .... Operating lever 34a, 34b .... Control key 1,2

40 .... cutter 41 .... movable cutter

42 .... Fixed Cutter 43 .... Slide Groove

44 .. Fixing bracket 45 .... Fixing knob

46 .... thread groove 47 .... spring

48..Guide Bushing 50 .... Paper

As a technical means for achieving the above object, the present invention, in the cash register printer, one end of the cutter shaft protruding to the rear of the movable cutter installed up and down inside the cutter case is rotatably installed as a support shaft It is inserted and fixed to move along the inside of the heart-shaped cam groove formed on one surface of the wheel, and one end of the working wheel is installed to engage the rotating shaft of the drive motor horizontally installed in the upper side of the case and the worm gears are driven to drive A drive unit for cutting the movable cutter;

An actuating cam is protruded to the support shaft behind the actuating wheel, and an actuating lever protruded to the front of the actuating switch installed in the case is in contact with the outer circumferential surface of the actuating cam to adjust the cutting operation to a fully cutting and cutting state. Cutting adjustment part,

One end of the fixing bracket fixed to the rear base is fixed to the rear base by a fixed cutter fixed to the lower side of the case and slide grooves formed on both left and right sides of the movable cutter overlapping the rear side of the case. Cutter device for a cash register printer comprising a cutter which cuts paper as a fixed cutter and a movable cutter, which is formed with a screw groove which is coupled with a screw rod of a fixed knob where spring is installed to maintain the adhesion between the cutter and the fixed cutter. By providing.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a front configuration diagram showing a cutter device of a cash register printer according to the present invention, Figure 3 is a schematic diagram showing an operation cam of the cutter device installed in the printer of the present invention, Figure 4 is a printer of the present invention In the cutter device, the main portion is a plan view showing the interval adjustment state of the movable and fixed cutter, Figure 5 (a) and (b) is a schematic diagram showing the cut and full cutting state of the paper in the cutter device of the present invention. As the present invention, the drive unit 20, the cutting adjustment unit 30, and the cutter unit 40 are configured.

In addition, the drive unit 20 which engages with the fixed cutter 42 and provides a drive source for cutting the paper 50 is provided on the rear surface of the movable cutter 41 which is installed to operate up and down inside the printer case 2. One end of the integrally protruded cutter shaft 21 is inserted and fixed to move along the inside of the heart-shaped cam groove 23 formed on one surface of the operating wheel 22 rotatably installed as the support shaft 22a. 22, one end of the case 2 is installed to be engaged with the rotating shaft 23a of the drive motor 25 horizontally installed to one side of the case 2, and the worm gear 24 that is extended is driven by the drive motor 25. 31) to operate up and down.

In addition, the cutting adjustment unit 30, which allows the user to easily manipulate the cut state in which the paper 50 is not completely cut or partially cut, is rearward of the operation wheel 22. An actuating cam 31 is spoken to the support shaft 22a, and an actuating lever 34 extending outwardly of the actuating switch 32 installed in the case 2 is in contact with the outer circumferential surface of the actuating cam 31 in contact with the cutting shaft 22a. Adjust operation to cutting and trimming.

On the other hand, the operation switch 32 is connected to the first and second operation keys 34a and 34b installed to allow the user to operate out of the case 2 through the microcomputer 35 installed in the case 2, and The first operation key 34a is operated to operate in a completely cut state of the paper 50, and the second operation key 34b is installed to operate in a cut state of the slip sheet 50, and the movable cutter ( In the lower center of 41, the cutter groove 41a is formed integrally.

Further, the cutter portion 40 for cutting the paper 50 between the movable cutter 41 and the fixed cutter 42 whose cutting state is adjusted is fixed to the lower side of the inner base 3 of the case 2. Slide grooves 43 are formed integrally with the left and right sides of the installed fixed cutter 42 and the movable cutter 41 overlapping the rear, and the fixed cutter 42 is coupled to the fixed groove 42 through the slide groove 43. Fixed bracket (44) is fixed to the rear base (3), the fixing bracket 44 is fixed inside the spring (47) to maintain the adhesion of the movable cutter 41 and the fixed cutter 42 in the inside of the fixed bracket (44) A screw groove 46 to which the screw rod 45a of the knob 45 is coupled is formed to adjust the adhesion between the movable cutter 41 and the fixed cutter 42. The guide bush 48 is formed between the spring 47 and the movable cutter 31 of the fixing bracket 44.

Referring to the operation and effects of the present invention made of such a configuration as follows.

As shown in Fig. 2 to Fig. 5, in the printer 1 which prints the waiting paper (paper indicating the waiting order) of the waiting notification device used in a bank or a large store, the slip sheet 50 of a cash register, or the like. It is possible to easily prevent the paper jam phenomenon of the cutter device 10 which completely or partially cuts the slip sheet 50 as the first and second operation keys 34a and 34b. The cutter device 10 of the cash register printer 1, which is extremely convenient to use by simply adjusting a cutting state that is desired by the user, that is, cutting and cutting, is as follows.

First, when the operating wheel 22 is installed on the support shaft 22a rolled into the printer case 2 so as to rotate, the worm gear 24 installed on one side is engaged with the rotation shaft 25a of the drive motor 25. When the drive motor 25 is rotated, the operating wheel 22 engaged with the worm gear 24 rotates in a direction perpendicular to the worm gear 24 with the support shaft 22a as an axis. Rotation works.

2 and 3, a cam groove 23 having a heart shape is formed on one surface of the operating wheel 22, and a rear of the operating wheel 22 is formed in the cam groove 23. One end of the cutter shaft 21 protruding from the front center of the movable cutter 41 is positioned so that the movable cutter 41 of the cam groove 23 rotates integrally during the rotation operation of the operation wheel 22. While cutting the paper sheet 50 together with the fixed cutter 42 while operating up and down according to the bent state, in more detail, the working wheel 22 is rotated at the starting point Fs of the cam groove 23 to the end point Fc. C), the cutter shaft 21 is rotated one rotation along the cam groove 23, and thus the movable cutter 41 in which the shaft 21 protrudes is to cut the paper 50 while moving up and down with a predetermined width.

In particular, the groove 23 is an important role of the cutter device 10 while interlocking with the operation of the operation switch 32 that is in contact with the operation cam (31) addressed to the support shaft (22a) behind the operation wheel (22). 2 and 3, the first and second operation keys 34a and 34b installed outside the case 2 and the internal microcomputer 35 are connected to each other. The actuating lever 33 of the switch 32 maintains a state spaced apart from the actuating cam 31 in the initial state (off state), but when the driving motor 25 rotates, that is, the actuating cam 31 is in the motor on state. ) Moves along the outer circumferential surface thereof and then goes off by pushing the initial state again by the operation cam 31.

At this time, as shown in Figures 3 and 5, the first operation key (34a) is a full cutting state, the second operation key (34b) adjusts the cutting state, if the user is a first cutting state When the operation key 34a is pressed, the actuating lever 31 is operated completely one turn from the space-contact-off-off state to the contact-off-state again. In this case, the drive motor 25 continues to rotate only in one direction, and thus the shaft of the movable cutter 41 along the cam groove 23 of the operation wheel 22 protruded as the operation cam 31 and the support shaft 22a. 21 is operated in a fully cut state in which the movable cutter 41 completely cuts the sheet 50 while making one full revolution.

On the contrary, when the user operates the second operation key 34b, the operation cam 31 operates like the first operation key 34a until off-on-off, but then the drive When the motor 25 rotates in the reverse direction and the operation cam 31 returns to the initial position, the space-contact-spaced operation again rotates in one direction, and finally, when the second operation key 34b is operated, the operation lever ( 33 reciprocates only one half of the actuating cam 31, which causes the cutter shaft 21 to rotate halfway along the cam groove 23 of the actuating wheel 22, resulting in the up and down actuation width of the movable cutter 41. This is determined because the easy 50 cutting state is adjusted according to the lower limit of the movable cutter 41.

At this time, the cutting operation, as shown in Fig. 5 (a), a cutting groove 41a for leaving the paper 50 in the connected state is formed in the center portion of the movable cutter 41, as described above Likewise, the center portion of the paper 50 is not cut by the cutting groove 41a by the interlocking operation between the operation cam 31 and the operation wheel cam groove 23 by the second operation key 34b. ) Is to be cut.

In addition, in the cutter device 10, the substantially cutting of the sheet of paper 50 is performed by mutual movement between the movable cutter 41 and the lower fixed cutter 42 operating up and down, and thus the movable and fixed cutters ( 41) (42) adhesion is important. The adhesion between the movable cutter 41 and the fixed cutter 42 is particularly prevented from jamming when the paper 50 is inserted during the cutting operation.

As shown in FIG. 4, the fixing bracket 44 through the slide groove 43 formed in the movable cutter 41 is coupled to and fixed to the base 3 while fixing the fixing cutter 42 to the fixing bracket 44. As the fixed cutter 4 and the movable cutter 41 are kept in close contact with each other, in this case, the screw rod 45a of the fixed knob 45 is provided in the screw groove 46 formed inside the fixed bracket 44. Screwed, the spring 47 is compressed to the fixed knob 45 is rolled outward.

Accordingly, when the fixed knob 45 is rotated and compressed, the spring 47 integrally compresses the movable cutter 41, and thus the adhesion between the fixed cutter 42 and the movable cutter 41 is the spring 47. It is adjusted by the elastic force of the, it is possible to adjust the lowering operation of the movable cutter 41 for cutting the paper 50 when assembling the cutter device 10, at the same time the movable and fixed cutter ( When the separation between the 41 and 42 occurs, the fixed knob 45 is rotated to increase the pressing force of the spring 46, so that it is simply in close contact.

In addition, the guide bush 48 is installed between the spring 46 and the contact surface of the movable cutter 41 to facilitate the vertical movement of the movable cutter 41, and the upper end 24a of the worm gear 24. When the jam is inserted between the movable cutter 41 and the fixed cutter 42 by the protruding portion of the silver case 2 by approximately 1 mm, the worm gear 24 is turned manually. After moving the movable cutter 41 to the uppermost position, the inserted sheet 50 is easily discharged to the outside.

Accordingly, the jam phenomenon generated in the cutter device 10 of the printer 1 is not only prevented, and the cutting state of the paper 50 can be easily adjusted as necessary, and the movable cutter 41 and the fixed cutter 42 can be adjusted. The cutting operability of the liver is improved.

According to the cutter device of the cash register printer according to the present invention as described above, the shaft of the movable cutter is inserted into the heart-shaped cam groove formed in the operation wheel to be driven up and down, while the gap between the movable and the fixed cutter is simply adjusted to adjust the paper. In addition to minimizing the occurrence of jams, precise cutting of paper and adjustment of cutting and full cutting as required are easily performed, making it extremely convenient to use, resulting in an excellent effect of further improving the product quality of the cash register printer. have.

Claims (5)

In the cash register printer 1, One end of the cutter shaft 21 protruding to the rear of the movable cutter 41 installed up and down inside the cutter case 2 has a heart formed on one surface of the operating wheel 22 installed to be rotatable as the support shaft 22a. The worm gear 24 is inserted into and fixed to move along the inside of the type cam groove 23, and the rotary shaft 25a of the driving motor 25 horizontally installed on the upper side of the case 2 at one end of the operating wheel 22. ) Is installed to be engaged with the driving unit 20 for the movable cutter 31 is cut operation by the drive of the drive motor 25, An actuating cam 31 is protruded to the support shaft 22a behind the actuating wheel 22, and an actuating cam 32 is protruded to the outer circumferential surface of the actuating cam 31 in front of the operation switch 32 installed in the case 2. Cutting adjustment unit 30 is in contact with the operating lever 34 to adjust the cutting operation to the complete cutting and cutting state, and Fixing bracket 44 for fixing the fixing cutter 42 through the fixed cutter 42 fixed to the lower side of the case 2 and the slide grooves 43 formed on both left and right sides of the movable cutter 41 overlapping the rear side. One end of the coupling is fixed to the rear base (3), the fixing knob (44) in which the spring 47 is installed to maintain the adhesion between the movable cutter 41 and the fixed cutter 42 inside the fixing bracket (44) Screw grooves (45a) of the coupling) is formed to include a movable cutter (41) and a cutter portion (40) for cutting the paper 50 as a fixed cutter 42 is in close contact with Cutter apparatus for cash register printers 2. The first and second operation keys 34a and 34b of claim 1, wherein the operation switch 32 is provided so that the user can operate the outer side of the case 2 through the microcomputer 35 installed in the case 2; Cutter device for a cash register printer, characterized in that connected The cutter apparatus of the cash register printer according to claim 2, wherein the first and second operation keys (34a) and (34b) are installed to adjust the complete cutting and cutting operations of the paper (50). The method of claim 1, wherein between the spring 47 and the movable cutter 31 of the fixing bracket 44 is provided with a guide bush 48 to facilitate the up and down operation of the movable cutter (31) Cutter device of register printer The cutter apparatus of the cash register printer according to claim 1, wherein a cutting groove (41a) is formed at the center of the movable cutter (41) to cut the paper (50).