JPH05238616A - Paper sheet winder - Google Patents

Abstract

PURPOSE:To optimize a winding state of paper sheet by controlling the tension of the paper sheet according to the diameter of the wound paper sheet, thickness and rotation quantity. CONSTITUTION:In a paper sheet winder comprising a paper feeding means to feed a paper sheet, which is composed of a shaft 18 and roll paper 9, a spool 5 to wind the roll paper, and a pulse motor 2 to rotate the spool 5, the speed of the pulse motor 2 is varied according to the diameter information from a diameter sensor 8, the paper thickness information from a paper thickness storing section, the information on turning quantity according to the speed signal from a controller to perform optimum control of the tension of the roll paper. Therefore, since tension control is conducted when winding the paper sheet, excessive tension is not applied to the paper sheet. In addition, since the variation of the tension during the winding of the paper sheet becomes small, the winding state of paper sheet can be improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper sheet winding device for a printing device or the like which uses continuous paper sheets as a medium.

[0002]

2. Description of the Related Art A conventional apparatus is disclosed in JP-A-60-137758.
As described in Japanese Patent Laid-Open Publication No. JP-A-2004-115, by detecting the target speed of the winding core portion of the paper winding device and the actual speed information of the winding core portion and controlling the speed of the winding core portion, the winding operation is performed. The winding speed is controlled by synchronizing the speed on the feeding side with the speed on the feeding side. However, no consideration is given to controlling the winding state by optimizing the tension of the paper sheet on the winding side.

[0003]

SUMMARY OF THE INVENTION In the above-mentioned prior art, the speed control of the winding core portion is performed by detecting the target speed of the winding core portion of the paper sheet winding device and the actual speed information of the winding core portion. By doing so, the speed on the winding side and the speed on the feeding side are synchronized. For this reason, (1) Since tension control is not performed when the paper is wrapped,
Excessive tension is applied to the paper sheet and the paper sheet breaks.

(2) Since the tension is not controlled during the winding of the paper sheet, the fluctuation of the tension during the winding of the paper sheet causes the disorder of the paper sheet winding state.

(3) Due to item numbers (1) and (2), an abnormality of the winding device occurs.

The objects of the present invention are: (1) Tension control at the time of winding a sheet is performed to prevent an excessive tension from being applied to the sheet and to prevent the sheet from breaking.

(2) Tension control during paper winding is performed to reduce the tension fluctuation during paper winding and improve the paper winding state.

(3) In accordance with item numbers (1) and (2), abnormalities in the winding device are reduced to improve the reliability of the device.

That is.

[0010]

In order to achieve the above object, (1) a rotation amount detecting means for outputting a rotation amount of a take-up shaft so that an excessive tension is not applied to a sheet at the time of winding the sheet. A diameter detecting means for outputting the diameter of the paper sheet wound around the shaft; a thickness detecting means for outputting the thickness of the paper sheet; and an optimum paper sheet thickness based on the rotation amount, the diameter and the thickness information. Optimum tension control was performed by providing a calculation means for calculating the tension and a means for changing the tension of the paper sheet to be wound according to the output of the calculation means.

(2) By the same means as the item (1), the tension of the paper sheet which changes moment by moment is controlled to improve the paper sheet winding state.

(3) By means similar to item (1), the occurrence of abnormalities in the winding device is reduced and the reliability of the device is improved.

[0013]

The paper sheet is supplied by the supply means. The shaft driving means rotates the shaft. The shaft is configured to rotate and wind the paper sheet supplied by the supply means.

The rotation amount detecting means outputs the rotation amount of the shaft. The diameter detecting means outputs the diameter of the paper sheet wound around the shaft. The thickness detecting means outputs the thickness of the paper sheet. The calculation means outputs the optimum tension of the paper sheet to be wound, based on the rotation amount, the diameter and the thickness information. The means for changing the tension controls the tension according to the optimum tension information from the computing means. As described above, the winding paper state of the shaft is controlled.

[0015]

Embodiments of the present invention will be described below with reference to FIGS.

FIG. 1 is a hardware block diagram of the paper sheet winding mechanism. In this winding mechanism, a pulse motor 1 for driving the rollers 19 to 22, a pulse motor 2 for driving the spool 5, and a phase advance signal to the pulse motors 1 and 2 according to a speed signal from the control unit 6. A driver 7 for outputting, a diameter sensor 8 for detecting the diameter of the sheet wound on the spool 5, a sheet thickness storage unit 10 for storing the thickness of the roll paper 9, and a diameter sensor 8. Based on the diameter information and the paper thickness information in the paper thickness storage unit 10, the pulse motors 1 to
The control unit 6 outputs the two speed signals.

FIG. 2 shows the structure of the paper sheet winding mechanism. This winding mechanism includes rollers 19 to 22 and rollers 19 to 22 for taking out a sheet from the roll paper 9 at a constant speed.
A pulse motor 1 for driving the roll 22 at a constant speed, a spool 5 for winding the roll paper 9, a pulse motor 2 for driving the spool 5, and a vertical movement depending on the diameter of the paper sheet wound on the spool 5. It comprises a diameter sensor 8 that moves to detect the diameter, a tension applying roller 11 that moves up and down to give a tension to the roll paper, and a spring 12 that has an upper portion fixed and that acts vertically on the tension roller 11. .

FIG. 3 shows a mechanism of a banknote dispensing machine using a paper sheet winding mechanism. This withdrawal mechanism includes a 1,000-yen cassette 13 and a 10,000-yen cassette 14 for supplying withdrawal banknotes, a withdrawal port 15 for delivering the withdrawal banknotes to a user, and a 1,000-yen cassette 1.
The three- and ten-thousand-yen cassette 14 is provided with a transport path 16 for transporting banknotes to the dispensing port 15, and a journal printer 17 for printing history information of the dispensing transaction. If the user wants to withdraw 55,000 yen, the 1,000 yen cassette 13,
Five banknotes are transferred from the 10,000-yen cassette 14 to the dispensing port 15 by the transport path 16 and the user receives cash from the dispensing port 15 to complete a series of dispensing operations. Further, the journal printer 17 of the present invention prints the transaction history information on a continuous paper sheet and winds the continuous paper. Each time the transaction is performed, the transaction date and time, the amount to be dispensed, the balance of the banknote dispensing device, etc. are printed. An example of the printing is shown in FIG.

FIG. 5 shows a control flow chart of the paper sheet winding mechanism. This program operates with an interrupt cycle of 100 ms. When activated, it drives the pulse motor 1 for driving the rollers 19-22. Next, the pulse motor 2 for driving the spool 5 is driven. Next, the rotation angle θ of the spool 5 that has moved in 100 ms is calculated from the speed signal of the control unit 6. Next, the diameter sensor 8
Based on the diameter information of
To calculate. Next, the standard value of γ / θ is calculated. The standard value is determined according to the following procedure based on the thickness information l in the sheet thickness storage unit 10. When l = 3.6 mm, γ = 3.6 mm at θ = 360 °. Therefore, standard value = γ / θ = 3.6 mm / 360 ° = 0.01 Next, compare the standard value 0.01 with the measured value γ / θ, and if γ / θ is larger, set γ / θ to the standard value. In order to bring them closer, the pulse motor 2 is accelerated to increase the tension. On the contrary, when γ / θ is smaller, γ / θ is brought closer to the standard value, and therefore the pulse motor 2 is decelerated in order to lower the tension. The above operation is repeated until the winding operation is completed.

The operation will be described below. The roll paper 9 is wound around the shaft 18. The shaft 18 is not fixed and is not driven. The roll paper 9 includes rollers 19 to 22.
It is held by and is transported at a constant speed of 10 cm / S. Spool 5
Winds a paper sheet at a controlled speed. When γ / θ is larger than the standard value, the pulse motor 2 is accelerated to apply tension to the paper sheet that is being conveyed at a constant speed, and the tension applying roller 11 descends. When γ / θ is smaller than the standard value, the pulse motor 2 is decelerated to lower the tension of the paper sheet being conveyed at a constant speed and raise the tension applying roller 11. Since it is controlled in this way, the tension at the time of winding of the winding mechanism can be optimized and the winding state of the paper sheet can be controlled.

[0021]

EFFECTS OF THE INVENTION According to the present invention, (1) the tension is controlled when the paper sheet is wound, so that excessive tension is not applied to the paper sheet.

(2) Since the tension is controlled during the winding of the paper to reduce the tension fluctuation during the winding of the paper, the winding condition of the paper can be improved.

(3) In accordance with item numbers (1) and (2), abnormalities in the winding device are reduced to improve the reliability of the device.

The effect is as follows.

[Brief description of drawings]

FIG. 1 is a hardware block diagram of a paper sheet winding mechanism.

FIG. 2 is a configuration diagram of a paper sheet winding mechanism.

FIG. 3 is a mechanism diagram of a banknote dispensing machine using a paper sheet winding mechanism.

FIG. 4 is a print diagram of a journal.

FIG. 5 is a control flowchart of a paper sheet winding mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Pulse motor, 2 ... Pulse motor, 5 ... Spool, 6 ... Control part, 7 ... Driver, 8 ... Diameter sensor, 9 ... Roll paper, 10 ... Paper thickness storage part, 11 ... Tension application roller, 12 ... Spring, 18 ... Shaft, 19 ... Roller, 20 ... Roller, 21 ... Roller, 22 ... Roller.

Claims (1)

[Claims] 1. A paper sheet winding mechanism comprising a supply means for supplying a paper sheet, a shaft for winding the paper sheet given by the supply means, and a drive means for rotating the shaft. A rotation amount detecting means for outputting the rotation amount of the shaft, a diameter detecting means for outputting the diameter of the paper sheet wound around the shaft, a thickness detecting means for outputting the thickness of the paper sheet, and a rotation amount. A winding means for the shaft is provided with a calculating means for calculating the optimum tension of the paper sheet to be wound on the basis of the diameter and thickness information, and a means for changing the tension of the paper sheet to be wound according to the output of the calculating means. A paper sheet winding device characterized by controlling a leaf state.