JPS6113469Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sizing device for feeding paper into a ticket printing machine, for example in a ticket vending machine.

Conventionally, this type of device has been used, for example, as shown in FIG.
The strip of paper from the paper roll is pulled by a drag roller, the paper is fed to the print head by a feed roller, and the paper is cut by a cutting machine before or after the print head. A drive source is provided separately for the motor, a motor for the drag rollani, a drive source for the cutter (not shown), etc. For this reason, it becomes bulky inside the narrow ticket vending machine,
Another disadvantage is that the linked operation must rely solely on electrical signals. The present invention aims to eliminate these drawbacks and provide a device that can operate each mechanism with a single drive source.

To explain the embodiment with reference to the drawings, 1 is a strip of paper, which is fed out from a paper roll roller (not shown), passes through a drag roller 2 and a guide roller 3, is sent on a pass line 5 of a machine base 4, and is cut by a cutter 6. The paper becomes a ticket of a certain size, and is sent to the receiving tray of the ticket vending machine via a printing section (not shown). A cam 7 receives driving force for the entire mechanism from a motor 8 and rotates counterclockwise around a shaft 9. cam 7
The cam surface 7a of the cutter arm 10 contacts the driven roll 10a of the cutter arm 10, and the cutter arm 10 is swung around the shaft 10b as the cam 7 rotates via the driven roll 10a. cutter arm 1
The rear end of the cutter arm 10 is configured as a light shielding part 10c, and the light shielding part 10c blocks the detection light of the detector 11 at a certain swing position of the cutter arm 10. At the tip of the cutter arm 10 is a connecting rod 12 that connects to the upper blade of the cutter 6.
is attached, and the cutter 6 cuts the paper strip 1 at the time when the maximum radius portion 7b of the cam surface 7a comes into contact with the bearing roll 10a. 13
is a crank rod, one end of which is pivotally supported by a crankshaft 13a protruding from the cam surface, and the other end of which is connected to the sector gear 14 with screws 15, 15 whose position can be adjusted.
It is pivotally supported by another crankshaft 13b that protrudes from a mounting bracket 16 to which it is fixed. Sector gear 14
The crank rod 13 rotates in an arc around the shaft 17 as the crank rod 13 moves up and down as the cam 7 rotates. 14a is an elongated hole provided in the sector gear 14, and is located on the opposite side of the shaft 17 from the teeth 14b of the sector gear 14. One end 18a of the drag arm 18 is engaged in the elongated hole. The gouging arm 18 is coaxial with the rotating shaft 19 of the guide roller 3, is rotatable about the shaft 19 as a fulcrum, and has the gouging roller 2 at its tip.
is installed. A pinion 20 meshes with the sector gear 14, which is located on the side of the machine base 4, meshes with the sector gear 14, and reciprocates clockwise and counterclockwise as the sector gear 14 rotates in a reciprocating arc.
21 is a paper feed roller with knurling on its surface, which is designed to rotate only in a clockwise direction. In other words, the drive shaft 2 of the paper feed roller 21
is supported at one end by the pinion 20, and is provided with a one-way clutch between it and the pinion 20 so as to rotate together only when the pinion 20 rotates clockwise. and the drive shaft 2
The other end of the drive shaft 22 is supported by a fixed bearing (not shown) on the opposite side of the machine base 4, and is one-way so that it becomes free only when the drive shaft 22 rotates clockwise and stops when it rotates counterclockwise. Cratchi is being forced to work. Reference numeral 23 denotes a presser roller which holds the paper strip 1 between itself and the paper feed roller 21, rotates as the paper feed roller 21 rotates, and feeds the paper strip 1 forward. Presser foot roller 2
3 is supported by a shaft 25 at the front of the operating arm 24, and is locked against clockwise rotation. Note that the sheet feed roller 21 and presser roller 23 hold the paper strip 1 by pressing both sides of the paper strip 1, and the center portions of the outer peripheral surfaces of the rollers 21 and 23 are recessed. The center portion of the paper strip 1 is aligned with the pass line 5 by a paper presser 26 attached to the operating arm 24. The operating arm 24 is supported by a shaft 27 on a machine body (not shown), and is always biased clockwise by a spring (not shown) to press the presser roller 23 against the paper feed roller 21. Then, if necessary, press down the operation part 24a to release the presser roller 2.
Raise 3. 28 is a spring that always urges the upper blade of the cutter 6 upward; 29 is a fixed spring mounting plate;
0 is the paper presser.

To explain the operation, when the cam 7 now rotates 1/2 turn counterclockwise from the state shown in FIG. 2, the crank rod 13 rises and rotates the sector gear 14 counterclockwise by a certain amount. This rotation of the sector gear 14 causes the pinion 20 to rotate clockwise by a certain angle, and thereby the paper feed roller 21 also rotates by a certain angle to feed the strip of paper 1 by a certain amount. The feeding amount of this strip-shaped paper 1 is determined by the diameter of the paper feeding roller 21,
This is determined by the diameter of the pinion 20, the amount of swing of the sector gear 14, etc., but in the present invention, by adjusting the mounting position of the mounting bracket 16 to the sector gear 14,
The distance of the sector gear 14 of the crankshaft 13b from the shaft 17 is changed to adjust the amount of paper feed. or,
The rotation of the sector gear 14 in the counterclockwise direction causes the drag arm 18 to rotate clockwise around the rotating shaft 19, causing the drag roller 2 to move upward, thereby smoothing the feeding of the strip-shaped paper 1. On the other hand, the first 1/2 rotation of the cam 7 is made by the driven roll 10 by the cam surface 7a.
A is not pressed down, so the cutter arm 10 also does not rotate, and the cutter 6 remains open upward.
Next, when the cam rotates the remaining 1/2 turn counterclockwise, the sector gear 14 rotates clockwise and returns to its original position. At this time, the biting pinion 20
Since the one-way clutch between the shaft 22 and pinion 20 rotates freely, only the pinion 20 rotates idly and the shaft 13 remains stationary. Also sector gear 14
The clockwise rotation causes the drag arm 18 to rotate counterclockwise, causing the drag roller 2 to move downward and pull down the strip of paper 1. On the other hand, during the rotation of the cam 7, the maximum radius portion 7b of the cam surface 7a comes into contact with the passive roll 10a of the cutter arm 10, and the cutter 6 moves downward via the cutter arm 10 and the connecting rod 12 to cut the paper strip 1. When the cam 7 completes one revolution, the light blocking portion 10c of the cutter arm 10 blocks the detection light from the detector 11 again, and issues an operation completion signal.

As described above, the present invention is a device that has a paper strip drag roller, a paper feed roller that sends the paper strip forward on a pass line on the machine stand, and a cutter that cuts the paper strip. A flexible sector gear is provided, and a pinion that rotates the paper feed roller in only one direction is engaged with the teeth of the sector gear, and a retracting roller is provided on the opposite side of the sector gear from the teeth. The swinging drag arm is linked, and when the sector gear rotates in the rotating direction, the paper feed roller is rotated, and when the sector gear rotates in the other rotation direction, the strip of paper is pulled by the drag roller, On the other hand, a cam that rotates in response to a rotational driving force from a drive source is provided, and an arm that operates the cutter is in contact with a cam surface of the cam so as to swing as the cam rotates, In addition, the cam and the sector gear are connected by a crank, and the rotation of the cam causes the sector gear to swing back and forth, so the relationship between the overall operations is easy to understand, the settings are easy, and the movement is reliable. Moreover, the number of parts can be reduced, and the whole can be made smaller.

In other words, in a device that has a paper strip drag roller, a paper feed roller that forwards the paper strip on a pass line on the machine table, and a cutter that cuts the paper strip, it rotates in response to rotational driving force from a drive source. The cam operates the drag roller, paper feed roller, and cutter, so
The overall movement relationship is easy to understand and settings are easy. Moreover, the arm that operates the cutter contacts the cam surface of the cam so as to swing as the cam rotates, and the sector gear that operates the retracting roller and the paper feed roller is connected to the cam by a crank. Therefore, only one cam is required, the operation setting is easy, and the entire structure can be made small. Furthermore, a pinion that rotates the paper feed roller in only one direction is engaged with the sector gear, and a drag arm that swings the drag roller is linked to the sector gear. There is no risk of the paper being pulled out, and conversely, there is no risk of the paper feed roller being rotated while the drag roller is picking up the strip of paper. In addition, the pinion that rotates the paper feed roller in only one direction is engaged with the teeth of the sector gear, and on the opposite side of the gear is linked the pull arm that swings the pull roller, so the force is evenly distributed. The movement is smooth.

[Brief explanation of the drawing]

FIG. 1 is a schematic view showing a conventional example, and FIG. 2 is a side view of an apparatus showing an embodiment of the present invention. 1... band-shaped paper, 2... drag roller, 4...
...Machine stand, 5...Pass line, 6...Cutter, 7
...Cam, 7a...Cam surface, 8...Motor, 1
0...Cutter arm, 13...Crank bar, 1
4...Sector gear, 18...Hug arm, 2
0...Pinion, 21...Paper feed roller.

Claims (1)

[Scope of Claim for Utility Model Registration] A device that has a drag roller for paper strips, a paper feed roller that feeds the paper strips forward on a pass line on the machine stand, and a cutter that cuts the paper strips, which swings around an axis. A freely movable sector gear is provided, and a pinion that rotates the paper feed roller in only one direction is engaged with the teeth of the sector gear, and the counterroller is provided on the opposite side of the sector gear from the teeth. When the sector gear rotates in one rotation direction, the paper feed roller is rotated, and when the sector gear rotates in the other rotation direction, the strip of paper is pulled by the pull roller. On the other hand, a cam is provided that rotates in response to rotational driving force from a drive source, and an arm that operates the cutter is in contact with the cam surface of the cam so as to swing as the cam rotates. A sizing feeding device for paper, characterized in that the cam and the sector gear are connected by a crank, and the sector gear is reciprocally oscillated by the rotation of a gum.