JPH04182165A - Paper feeding device - Google Patents

Abstract

PURPOSE:To smoothly sever a slip from continuous form with slackness on said continuous form eliminated, and to transfer the severed slip to one/ direction by a method wherein upstream feeding rollers are controlled to make reverse rotation preset amount of feeding after the upstream feeding rollers and downstream feeding rollers are stopped, but before a separating blade is made to start cutting operation. CONSTITUTION:A means setting the amount of reverse feeding is a device that sets the amount of reverse feeding required for control of the reverse rotation of feeding rollers 11U, 12U on the upstream side. The amount of reverse feeding is so set that the amount of slackness of continuous form Pc on a position between the feeding rollers 12U and 11D which occurs when the point of separation (perforation) on the continuous form Pc is positioned to meet the separating section SPR with the rotation of the upstream feeding rollers 11U, 12U and the downstream feeding rollers 11D, 12D stopped can be removed. A reverse rotation control means is a device that controls the upstream feeding rollers 11U, 12U so that they can rotate reversely by an amount set by the means setting the amount of reverse feeding after both the upstream feeding rollers 11U, 12U and the downstream feeding rollers 11D, 12D are stopped, but before a separating blade 21 is made to start cutting operation.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a paper conveyance device that intermittently transports continuous paper and cut sheets separated therefrom.

[Prior Art] A paper conveyance device is known that intermittently conveys continuous paper and cut sheets created by separating perforations provided at regular pitch intervals on the continuous paper, such as boarding passes. It is used by being built into the issuing machine.

Such a paper conveyance device is generally of a horizontal type as shown in FIG.

In FIG. 4, IU is, for example, a paper guide that forms an upstream paper transport path RU from a storage box (not shown) for continuous paper Pc to separation section SPR. Further, ID is a paper guide that forms a downstream paper transport path RD from the separating section SPR to a printing section (not shown). These paper guides IU.

The ID gap is selected to be considerably larger than the thickness of the paper for smooth conveyance of the paper.

Here, the continuous paper Pc is transported by upstream transport rollers IIU, 1
Upstream paper transport path RU with 2U (upstream motor 10U)
- and the downstream conveyance rollers 11D, 12D (downstream motor 10D) move the destination @Po to a predetermined position PS.
The paper is fed through the downstream paper transport path RD until it reaches T (confirmed by the paper leading edge detection sensor 25).

Further, 20 is a separation means that reciprocates the separation blade 21 in the X direction to separate perforations on the continuous paper Pc, and includes a continuous rotation motor, a clutch, a cam, and a solenoid for reciprocating the separation blade 21. It is composed of etc.

Note that whether or not the continuous paper Pc has been separated by the separation blade 21 is checked by the N pressure sensor 23 disposed at the 1 separation section SPH.

Therefore, when there is a command to transport the cut sheets Ps one by one to the printing section in the X direction, the upstream and downstream motors I
OU and IOD are rotationally driven to feed continuous paper Pc to paper transport paths RU and RD, and when the leading edge Po reaches a predetermined position PST, that is, when it is detected by the paper leading edge detection sensor 25, both motors 10U and IOD stop. be done. As a result, the perforation on the continuous paper Pc is positioned at the separation portion SPH. After that, the separation blade 21 is moved back and forth once in the X direction to separate the perforations.6 When the separation is completed, the confirmation sensor 2
3 operates, and the downstream motor 10D (
The downstream transport rollers 11D, 12D, 13D) are rotated to transport the paper in the X direction.

[Problems to be Solved by the Invention] However, according to the above-mentioned conventional method, the rotation of the upstream conveyance rollers IIU, 12U and the downstream conveyance rollers IID, 12D is stopped and the perforations on the continuous paper Pc are separated from the M section SP.
As shown in Figure 4, when the continuous paper P is positioned at
c may be stopped in a loose state within the paper transport paths R1J and RD due to slippage between the transport rollers IIU, 12U, IID, and 12D.

When the separating blade 21 is operated to separate the continuous paper Pc in a slack state, the paper Pc is pulled by the separating blade 21, and as shown in FIG. The eye part may also fall down and not be separated. The probability of such separation failure increases as the amount of slack in the continuous paper Pc increases.

Incidentally, even if separation of the continuous paper Pc fails, the separation blade 21 descends by a predetermined length and the confirmation sensor 2
In case 3, it is determined that the separation is complete, and the subsequent conveyance control etc. continues as is, which results in poor work efficiency and requires a great deal of effort to recover.6 In particular, the above-mentioned paper conveyance device If used as a part of a boarding pass issuing machine, it causes not only a problem of malfunction of the paper conveying device but also a social inconvenience of interfering with the entire boarding operation.

SUMMARY OF THE INVENTION An object of the present invention is to provide a paper conveyance device that can smoothly separate continuous paper with any slack removed to create cut sheets and convey the cut sheets in one direction. .

[Means for Solving the Problems] The present invention separates the continuous paper by a separation blade disposed between the upstream conveyance roller and the downstream conveyance roller after the upstream conveyance roller and the downstream conveyance roller stop rotating, and then separates the continuous paper. A paper conveyance device configured to convey a single sheet of paper in one direction, comprising: a reverse feed amount setting means for setting a reverse feed amount of the upstream rpJ conveyance roller; and the upstream@conveyance roller and the downstream conveyance roller. The present invention is characterized by further comprising a reversal control means for controlling the upstream conveyance roller in the reverse direction by a feed amount set by the reverse feed amount setting means after the rotation of the separation blade is stopped and before the separation blade is operated for separation.

[Function] In the present invention, the rotation of the upstream conveyance roller and the downstream conveyance roller is stopped to separate the continuous paper at a separation point (for example, a perforation).
When the roller is positioned to face the separation blade, the upstream conveyance roller is reversely controlled by the feed amount set by the reverse feed amount setting device using the reverse rotation control means before the separation blade is operated for separation. As a result, the continuous paper is pulled by the upstream conveyance roller while being restrained by the downstream conveyance roller, and slack is removed.

Therefore, even when the separation blade is operated to separate the paper, the continuous paper is not pulled too much by the separation blade, and the paper can be separated smoothly.

As a result, it is possible to smoothly separate the continuous paper with any slack removed to create a cut sheet, and to convey the cut sheet in one direction.

[Example] Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

As shown in FIGS. 1 and 2, this paper conveyance device is provided with a reverse feed amount setting means (35) and a reverse rotation control means (31), and the upstream conveyance roller IIU, 12U is reversely controlled via the upstream motor IOU to pull the continuous paper Pc and separate it with the slack removed.

Note that the paper kite IU, ID, upstream and downstream motors IOU, IOD, upstream and downstream transport rollers IIU, 12U, LID, 12D, 13D, separating means 20, paper leading edge detection sensor 25, etc. shown in FIG. Since it is the same as the conventional example when used in the boarding pass issuing machine shown in FIG.

Here, the reverse feed amount setting means and the reverse rotation control means are constructed by using some functions of the drive control device 30 that drives and controls the entire boarding pass issuing machine.

Therefore, when the drive control device 30 is first explained,
This drive control device 30 performs calculation 1 discrimination.

A CPU 31 that has functions such as execution, a ROM 32 that stores a paper transport program shown in FIG. 3, a RAM 33 that temporarily stores various data, and a keyboard 341 display unit 37. It is formed of an input/output boat 38, etc., a paper leading edge detection sensor 25, and an upstream and downstream motor IOU.
, IOD, separation means 20, and other engines (printer section, part of stacker, ribbon section, etc.) 100 are controlled in a timely manner. In addition, in this embodiment, both motors 10U.

10D is formed from a stepping motor.

Here, the reverse feed amount setting means is the upstream conveyance roller II.
It is used to set the amount of reverse feed when controlling U and 12U in reverse, and in this embodiment, it consists of a specific switch 35 on the keyboard 34. This reverse feed amount is determined by stopping the rotation of the upstream conveyance rollers IIU, 12U and the downstream conveyance rollers IID, 12D, and positioning the portion M#J (perforation in this embodiment) of the continuous paper Pc at the separating portion SPH. It is selected so that the amount of slack between the conveyance roller 12U and IID of the paper Pc can be removed during bending. Note that the set feed amount is RA
It is stored in M33.

Further, the reversal control means includes the upstream conveyance rollers 11U and 12.
After U and the downstream conveyance rollers IID, 12D have stopped rotating and before the separation blade 21 is operated to separate, the upstream conveyance rollers IIU, 12U are reversely controlled by the feed amount set by the reverse feed amount setting means (35). Therefore, this embodiment mainly includes the CPU 31.

Next, the operation of this embodiment will be explained based on the flowchart shown in FIG.

When there is an instruction to issue a boarding pass, the CPU 31 executes the paper transport program stored in the ROM 32 and executes step 5.
Upstream and downstream transport rollers IIU, 12U,
IID, 12D, 13D (upstream and downstream motor IO
U, l0D) in the forward direction. Then, the continuous paper Pc is transferred to the paper transport path FI in FIG. Sent along IRU and RD. After a considerable amount of time has elapsed, the leading end Po of the continuous paper Pc reaches the predetermined position PST.

In this case, the paper leading edge detection sensor 25 works and the detection signal S
1 (ST12), and based on this signal S1, CP
U31 stops the rotation of the upstream and downstream motors 10U and IOD (ST14).

In this case, the perforation on the continuous paper Pc or the separation part SPR
It is positioned in

Next, the CPU 31 holds the downstream motor 10D (ST16) and transfers the continuous paper Pc to the downstream transport roller IID.
, 12D. Next, in step 5T18, the reverse rotation control means (CPU31) controls the upstream motor IO
U is reversely controlled by the feed amount set by the reverse feed amount setting means (35).

The continuous paper Pc portion between the upstream and downstream transport rollers 12U and 11D is pulled in the direction away from the downstream transport roller 11D. As a result, slack in the continuous paper Pc is removed.

In this way, once the slack in the continuous paper Pc has been removed,
The upstream motor IOU is held (ST20). As a result, the continuous paper Pc is positioned at the perforation or separation portion SPH and is stretched with a constant tension.

In this state, the CPU 31 drives the separating means 20 to lower the separating blade 21 and perform a separating operation (ST22). At this time, since the continuous paper Pc is stretched with a constant tension, it is not pulled too much by the one-separation blade 21, and the perforations can be separated smoothly. Separation blade 21
When the continuous paper Pc is separated from the perforations by
ST24).

In this way, when the continuous paper Pc is separated and a cut sheet Ps having a length from one separation part SPR to a predetermined position PST is created, the downstream motor 10D is rotated forward to move the cut sheet Ps in one direction. (ST26).

According to this embodiment, the reverse feed amount setting means (
35) and a reverse rotation control means (CPU31) that reversely controls the upstream conveyance rollers IIU and 12U by the reverse feed amount set by the reverse feed amount setting means (35), so that the continuous paper Pc is not loosened. It is possible to smoothly separate the removed state to create a cut sheet Ps, and to convey the cut sheet Ps in one direction.

Further, since the reverse feed amount setting means is constituted by a specific switch 35 of the keyboard 34, it is easy to select and set the reverse feed amount, and therefore the device has wide applicability.

[Effects of the Invention] According to the present invention, the reverse feed 1 setting means reversely feeds the upstream conveyance roller after the rotation of the upstream conveyance roller and the downstream conveyance roller is stopped and before the separation blade is operated to separate. Since the configuration includes a reversing control means that performs reverse control by the amount of feed set by the amount setting means, it is possible to smoothly separate the continuous paper with the slack removed to create a cut sheet, and to can be transported in one direction.

[Brief explanation of drawings]

Figures 1 to 3 are diagrams showing one embodiment of the present invention, with Figure 1 being an overall configuration diagram, Figure 2 being a diagram for explaining the mechanical configuration, and Figure 3 being for explaining the operation. This is a flowchart. FIG. 4 and FIG. 5 are diagrams for explaining a conventional example. 11U, 12U...Upstream conveyance roller, 11D, 12
D, 13D...Downstream conveyance roller, 21...Separation blade, 31...CPU (reverse rotation control means), 35...Keyboard specific switch (reverse feed amount setting means), Pc...Continuous Paper, Ps...Slip paper.

Claims (1)

[Claims] (1) After stopping the rotation of the upstream conveyance roller and the downstream conveyance roller, the continuous paper is separated by a separation blade disposed between both the conveyance rollers, and then the separated cut sheets are conveyed in one direction. In the paper conveyance device configured as follows, the reverse feed amount setting means sets the reverse feed amount of the upstream conveyance roller, and after the rotation of the upstream conveyance roller and the downstream conveyance roller is stopped and the separation blade is and a reverse rotation control means for controlling the upstream conveyance roller in the reverse direction by a feed amount set by the reverse feed amount setting means before performing a separating operation.