JP2563453B2 - Paper feeder - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper feeding device having a cutting mechanism for cutting paper.

2. Description of the Related Art Conventionally, a paper feeding device for feeding a paper in one direction to stop the paper, cutting the paper with a movable blade and issuing the cut pieces as a ticket or the like has a first paper feeding unit, a movable blade, and a first blade. There is one in which the second paper feed section is sequentially arranged along the paper transport path from the upstream side to the downstream side. In such a case, since only the cutting pieces cut by the movable blade are issued in advance, it is necessary to independently drive the first paper feeding unit on the upstream side and the second paper feeding unit on the downstream side. There is.

In order to meet this requirement, the first and second paper feed units are connected to different feed motors, and one feed motor drives the first and second paper feed units. There is one in which an electric clutch is provided in the power transmission path with the section.

The problem to be solved by the invention However, the former one requires two feed motors, which increases the cost, and when the first and second paper feeding units are driven at the same time, the peripheral speeds and the stop timings are different. Are difficult to match, which affects the paper feeding operation.
Further, the latter type requires an electric clutch in the power transmission mechanism, which complicates the structure and increases the cost.

Means for Solving the Problems The first invention comprises a pinch roller rotatably supported by an arm and a feed roller opposed to the pinch roller, and an arm driving unit is connected to the arm to connect the pinch roller to the pinch roller. A first paper feed unit that is brought into contact with and separated from the feed roller, a movable blade connected to the cutter drive unit, and a second paper feed unit that is always joined to each other, and includes a pinch roller and a feed roller, The feed rollers are arranged in sequence from the upstream side to the downstream side, one feed motor is directly connected to each feed roller of the first and second paper feeding portions, and the first and second paper feeding is performed up to the cutting position. Part is driven by the feed motor, the cutter drive part is driven at the cutting position to cut the paper by the movable blade, and the arm drive part is used after cutting the paper. The arm is driven to separate the pinch roller of the first paper feeding unit from the feed roller to convey only the upstream paper, and then the arm driving unit drives the arm to drive the first paper. An operation timing setting circuit for urging the pinch roller of the paper feeding unit toward the feed roller to set respective operation timings of feeding the paper by the first and second paper feeding units is provided. It is a thing.

The second invention is characterized in that a pinch roller is arranged below the feed roller.

A third invention uses a cutter solenoid as a cutter drive unit, and lowers the energization voltage to the cutter solenoid so that the movable blade stops at a position where it interrupts the sheet conveyance path and functions as a shutter. It is characterized in that means are provided.

Action In the first invention, one feed motor is used for the first,
The second paper feed unit is driven, whereby the paper is conveyed, the cutter drive unit is driven when the feed motor is stopped, the paper is cut by the movable blade, and when the feed motor is driven again, the arm drive unit is used. Since the arm is displaced, the pinch roller of the first paper feeding portion is separated from the feed roller, whereby only the cut pieces are issued as a ticket or the like.

In the second aspect of the invention, since the pinch roller is arranged below the feed roller, the paper is always supported by the pinch roller by its own weight, and therefore the paper is separated from the feed roller by its own weight at the moment when the pinch roller is separated from the feed roller. Then, the transportation state is stopped immediately.

In the third invention, the movable blade is driven by the cutter solenoid to cut the sheet, and then the energizing voltage to the cutter solenoid is lowered. Therefore, the movable blade is temporarily moved at a position where it interferes with the sheet conveyance path. The sheet is maintained in the stopped state, and accordingly, even if the sheet comes into contact with the feed roller, the sheet comes into contact with the movable blade functioning as a shutter and is kept in the stopped state.

Embodiment An embodiment of the present invention will be described with reference to the drawings. First
As shown in the figure, a sheet conveyance path 1 is provided. The downstream side of the paper transport path 1 is branched into an outlet 2 connected to a ticket storage (not shown) and an outlet 3 on the other side, and a path switching plate 5 connected to a switching solenoid 4 is provided at the branch point.
Is rotatably provided around the support shaft 6. Further, along the paper transport path 1, the first paper feed unit 7, the cutting mechanism 9, and the plurality of second paper feed units 8 are sequentially arranged from the upstream side to the downstream side. The first paper feed unit 7 includes a feed roller 11 and a pinch roller 12 connected to a feed motor 10.
The second paper feeding unit 8 is composed of a feed roller 13 and a pinch roller 14 which are connected to a feed motor 10. The cutting mechanism 9 includes a movable blade 16 that is driven by a cutter solenoid 15 that is a cutter drive unit, and a fixed blade 17 that faces a blade edge of the movable blade 16. Reference numeral 18 denotes a ticket which is a sheet conveyed through the sheet conveyance path 1. The ticket 18 has perforations formed at predetermined intervals, although not shown.

FIG. 3 shows the structure of the cutting mechanism 9. A lever 21 which rotates about a support shaft 20 is rotatably connected to a plunger 19 of a cutter solenoid 15 and is urged upward by a spring 22. Both ends of a link 24 are movably connected to a movable blade 16 and a lever 21 which rotate about a support shaft 23.

As shown in FIG. 4, the pinch roller 12 of the first paper feeding portion 7 rotates about a supporting shaft 25 as a fulcrum and is rotatably supported by an arm 26 urged by a torsion spring 27 so as to be fed roller. It is contacted elastically at 11. This arm
Numeral 26 is rotatably connected to a plunger 29 of an arm solenoid 28 which is an arm driving unit. The pinch roller 14 of the second paper feeding unit 8 is rotatably held by the support shaft 30 and is urged by a torsion spring 31 to an arm 32.
Is rotatably supported by and is elastically contacted with a feed roller 13.

Next, FIG. 7 shows an operation timing setting circuit 33 for setting the operation timings of the feed motor 10, the cutter solenoid 15, the arm solenoid 28 and the switching solenoid 4. That is, the CPU 34, the ROM 35 in which the program is written, the RAM 36 in which various data to be changed are written, the sensor 37 for detecting the ticket 1, the control switch 38 for inputting the operation mode, etc. 39 and 39 are connected to each other by an address bus and a data bus. Further, a switching solenoid control circuit 40 that drives the switching solenoid 4, a motor control circuit 41 that drives the feed motor 10, a cutter solenoid control circuit 42 that drives the cutter solenoid 15, and an arm solenoid.
An arm solenoid control circuit 43 that drives 28 is connected to the CPU 34 by a data bus. Further, an interface transmission circuit 45 for connection with the host computer 44 is connected to the CPU 34 by a data bus.

In such a configuration, the operation of each part will be described with reference to the timing chart shown in FIG. 2 and the flow chart shown in FIG. First, the feed motor 10 is driven to convey the ticket 18. This state is the state shown in FIG. When the tip of the ticket 18 reaches the sensor 37, the sensor
37 turns on. This is a movable blade of the perforation of the ticket 18.
At a position facing the blade edge of 16, the feed motor 10 is stopped by the detection signal of the sensor 37, and the ticket 18 is stopped (time A in FIG. 2). At this time, the cutter solenoid 15 is energized. The energizing voltage at this time is 24V, and the movable blade 16 descends below the sheet path 1 by the suction operation of the plunger 19 of the cutter solenoid 15 and cuts the ticket 18 on the perforations. Then, since the arm solenoid 28 is energized, the arm 26 is pulled by the plunger 29 and rotated clockwise, and the pinch roller 12 is separated from the feed roller 11. Then, at timing C in FIG. 2, the energization voltage of the cutter solenoid 15 is reduced to 5V, and the movable blade 16 is stopped at the position where it interrupts the sheet conveying path 1 to exert the function as a shutter. This step in the flow chart of FIG. 8 is the energization voltage lowering means described in claim 3, and the circuit for performing this operation is the tipper circuit (not shown) of the cutter solenoid control circuit 42. Then, the feed motor 10 is rotated, and the feed rollers 11 and 13 of the first and second paper feeding units 7 and 8 are driven. However, since the pinch roller 12 is separated from the feed roller 11 in the first paper feeding unit 7, there is no conveyance force of the ticket 18, and only the second paper feeding unit 8 is cut in the first half of the ticket 18. Carry only tickets. This state is the state shown in FIG.
Since the switching solenoid 4 is energized at the time D in the figure, the path switching plate 5 rotates to connect the paper transport path 1 to the exit 2. As a result, the first half of the ticket 18 is stored in the ticket storage portion from the exit 2. At this time, the feed roller 11 of the first paper feeding unit 7 is rotating, but since the pinch roller 12 is located on the lower side, the second half of the ticket of the ticket 18 is separated from the feed roller 11 by its own weight and pinched. Even if the ticket 18 is supported by the roller 12 and comes in contact with the feed roller 11 for some reason, the movable blade 16 functions as a shutter, so the second half ticket of the ticket 18 becomes the first half ticket. It is possible to reliably prevent a mistake that is subsequently conveyed. Also, it is energized to make the movable blade 16 function as a shutter, but this energizing voltage is 5V.
Since the voltage is moderate, the circuit is not unduly loaded. Then, at the timing E shown in FIG. 2, since the energization of the cutter solenoid 15 is stopped, the movable blade 16 is returned upward by the urging force of the spring 22. At this time as well, since the energization voltage to the cutter solenoid 15 before that was low, the influence of the residual magnetism was small, and therefore the movable blade 16 quickly returned. At timing F in FIG. 2, the energization of the arm solenoid 28 is stopped, the arm 26 is twisted by the urging force of the spring 27 as shown in FIG. 6, and the pinch roller 12 is rotated. Feed roller
Make contact with 11 elastically. As a result, the second half of the ticket of the ticket 18 is conveyed, but the energization of the switching solenoid 4 is stopped until the timing G in FIG. The second half stub of the ticket 18 is discharged from the exit 3 because it is connected to the exit 3. After this discharging operation, the feed roller 10 is stopped.

As described above, one feed motor 10 can drive the first and second paper feed units 7 and 8, and power transmission from the feed motor 10 to the first and second paper feed units 7 and 8 can be performed. It is not necessary to provide an electric clutch in the path, which can simplify the structure.

The present invention is also applied to a sheet that is cut and intermittently conveyed along the same path. That is, the path switching plate 5 and the switching solenoid 4 that drives the path switching plate 5 are not essential.

EFFECTS OF THE INVENTION Since the present invention is configured as described above, it is possible to use only one feed motor that drives the first and second paper feeding units, and cut the paper by the movable blade to drive the feed motor again. Occasionally, the arm drive unit can displace the arm to separate the pinch roller of the first paper feed unit from the feed roller, thereby eliminating the need for an electric clutch between the feed motor and the first paper feed unit. Stop the paper transport function of the first paper feeder,
Only the cut pieces of the cut paper can be reliably separated and issued by the second paper feed section.Furthermore, by arranging the pinch roller of the first paper feed section below the feed roller, the pinch roller can be pinched. At the moment when the roller is separated from the feed roller, the paper can be separated from the feed roller and can be stopped immediately from the transport state.Furthermore, the cutter solenoid is used as the cutter drive unit, and the return operation of this cutter solenoid is stopped halfway. By providing a means for lowering the energizing voltage, the movable blade can be temporarily stopped in the paper transport path after the paper is cut, so that even if the paper comes into contact with the feed roller, this paper is used as a shutter. It can be kept in contact with the movable blade that is functioning and can be reliably maintained in a stopped state.
This has the effect of further assuring the action of separating the cut pieces of paper.

BRIEF DESCRIPTION OF THE DRAWINGS The drawings show one embodiment of the present invention. FIG. 1 is a side view, FIG. 2 is a timing chart, and FIG. 3 is an enlarged perspective view of a cutting mechanism. FIG. 5 is an enlarged side view showing a state in which the first and second paper feed sections convey the ticket, and FIG. 5 shows an enlarged state in which only the first half of the ticket is conveyed by the second paper feed section. And FIG. 6 is an enlarged side view showing a state in which the second half of the ticket is conveyed.
FIG. 7 is a block diagram showing the operation timing setting circuit, and FIG. 8 is a flow chart. 1 ... paper transport path, 7 ... first paper feed section, 8 ... second paper feed section, 10 ... feed motor, 11 ... feed roller, 12 ... pinch roller, 15 ... cutter drive section, 16
…… Movable blade, 18 …… Paper, 26 …… Arm, 33 …… Operation timing setting circuit

Claims (3)

(57) [Claims] 1. A pinch roller rotatably supported by an arm and a feed roller opposed to the pinch roller, wherein an arm driving portion is connected to the arm so that the pinch roller is brought into contact with or separated from the feed roller. One paper feed unit, a movable blade connected to the cutter drive unit, and a second paper feed unit consisting of a pinch roller and a feed roller that are always joined are sequentially arranged from the upstream side to the downstream side of the paper transport path. Arranged, one feed motor is directly connected to each feed roller of the first and second paper feed units, and the first and second paper feed units are driven by the feed motor to the cutting position to cut. At the position, the cutter driving unit is driven to cut the sheet by the movable blade, and after the sheet is cut, the arm driving unit drives the arm to drive the first sheet. The pinch roller of the paper feed unit is moved away from the feed roller to convey only the upstream paper, and then the arm drive unit drives the arm to move the pinch roller of the first paper feed unit to the feed roller. A paper feeding device, comprising: an operation timing setting circuit for urging the first and second paper feeding units to urge each side to set respective operation timings for feeding the paper. 2. The paper feeding device according to claim 1, wherein a pinch roller is arranged below the feed roller. 3. A power supply voltage lowering means for lowering the power supply voltage to the cutter solenoid so that the movable blade stops at a position where it interrupts the sheet conveying path and functions as a shutter, using a cutter solenoid as the cutter drive portion. The paper feeding device according to claim 1, further comprising: