JPH0728144U - Paper non-detection device for roll paper - Google Patents

Abstract

(57) [Summary] [Purpose] The end of the roll paper 5 is detected reliably and rigorously, regardless of the type of paper, even though the structure is extremely simple. [Structure] The roll paper 5 is rotatably supported, and its end is adhered to the winding core 4 and pulled out from the front end for use. A direction changing means 9 for changing the pulling direction of the roll paper 5 to a fixed direction is provided. A switch 32 for detecting the absence of the roll paper 5 between the direction changing means 9 and the roll paper 5.
To arrange. The operating portion 34 of the switch 32 is located on a straight line connecting the center of the winding core 4 and the roll paper contact position of the direction changing means 9. Then, when the end of the roll paper 5 moves from the tangential position of the winding core 4 to the normal line position, the roll paper 5 moves to the operating portion 34.
To detect the absence of paper.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a paper non-detection device for roll paper used in coin packaging machines, ticket vending machines, printers and the like, and more particularly to a paper non-detection device for roll paper whose end is bonded to a winding core.

[0002]

[Prior art]

 As a conventional paper non-detection device for roll paper, an amount detection sensor for detecting the remaining amount of roll paper and an end detection sensor for detecting the presence / absence of paper, for example, as disclosed in Japanese Utility Model Publication No. 2-1613. It has and.

The quantity detection sensor is an example in which a swingable lever is brought into contact with the roll paper and the swing amount of the lever is detected by a photo sensor. For example, a plurality of photo sensors are arranged in the radial direction of the roll paper. An example of directly detecting the roll paper's radius becoming smaller by arranging the roll paper with a reflective distance sensor facing the roll paper's peripheral surface, and the roll paper's peripheral surface moving away from the sensor. An example of detecting the is shown.

The end detection sensor is provided with a pair of photosensors sandwiching the roll paper and the roll-shaped portion to be pulled out, and when the photosensors are in the light-emitting state, the absence of paper is detected. The signal of the end detection sensor is given priority over the signal of and displayed.

In the case of a coin wrapping machine or the like, the wrapping paper is pressed against a cutter by the tension applied when the coin is wrapped around the coin to cut the wrapping paper, and the wrapping paper swings the lever at the time of cutting. The wrapping paper cut detection is carried out by the wrapping paper detection. When the wrapping paper runs out, the cutting detection is not detected. Therefore, there is a method in which the cutting detection is also used as the paper non-detection.

[0006]

[Problems to be Solved by the Invention] In the case of having both the amount detection sensor and the end detection sensor shown in the conventional example, the amount detection sensor is not able to roughly detect the gradually decreasing roll paper. Although it is possible, the end cannot be detected exactly, that is, even if one or two turns remain, it cannot be detected. Also, the end detection sensor cannot detect unless the end of the roll paper has passed the position of the sensor light, and cannot detect when the end of the roll paper is adhered to the core and does not come off. There is a problem. In addition, there is a problem that even if there is paper, there is a possibility of detecting the absence of paper in the case of transparent roll paper that is often used in coin packaging machines.

As described above, there is a problem in that even if both the quantity detection sensor and the end detection sensor are used, the end of the roll paper whose end is adhered to the winding core cannot be detected reliably and exactly. In particular, there is a problem that it cannot be detected in the case of transparent roll paper.

Further, in the case of a coin wrapping machine, if the paper cut detection is also used as the paper non-detection, the cost is easy, but the cut detection timing is a long time required for one packaging. Since it is every minute, the timing of detecting the paper empty becomes later than the timing when the paper is actually empty, and if the paper is forcibly continued without stopping the machine when the paper is empty, the paper will be bonded. The trailing edge of the rolled paper is peeled off and taken into the roll paper path, and the adhesive part attached to the trailing edge of the roll paper adheres to the rollers and guides of the roll paper path, causing paper jams, etc. There is a problem that it causes troubles, and even if the paper is not jammed, the timing of paper non-detection is delayed, so that the trailing edge of the paper enters the inside of the machine and it is very troublesome to remove it.

The present invention has been made in view of the above points, and has a very simple structure, but can reliably and rigorously detect the end of the roll paper regardless of the type of paper. An object of the present invention is to provide a paper non-detection device.

[0010]

[Means for Solving the Problems]

 The present invention relates to a roll paper non-detection device for rotatably supported, a terminal end of which is adhered to a winding core 4 and pulled out from a front end of a roll paper 5 for detecting a paper non-use. Direction changing means 9 for changing the pull-out direction of the roll paper 5 to a fixed direction, and a center of the winding core 4 and a roll of the direction changing means 9 provided between the direction changing means 9 and the roll paper 5. The operating part 34 is positioned on a straight line connecting the paper contact position, and when the end of the roll paper 5 moves from the tangential position of the winding core 4 to the normal line position, the operating part 34 is operated and the paper of the roll paper 5 is moved. And a switch 32 for detecting nothing.

[0011]

[Action]

 In the present invention, just before the wrapping paper 5 disappears, the adhesive part of the wrapping paper 5 moves from the tangential position of the winding core 4 to the normal position, and the wrapping paper 5 actuates the operating part 34 of the switch 32 so that the paper empty Detected.

[0012]

【Example】

 The configuration of an embodiment of the paper non-detecting device for rolled paper according to the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view of a packaging unit of a coin packaging machine, in which a cored bar 2 is erected on a base 1 and a roll body 3 is detachably set on the cored bar 2. The roll body 3 is formed by winding a wrapping paper 5 as a roll paper formed in a band shape from polyester or the like around a cylindrical winding core 4, and the end (winding start end) of the wrapping paper 5 is wound. ) Is attached to the peripheral surface of the winding core 4 with an adhesive portion 6 adhered with an adhesive. The inner diameter of the winding core 4 is formed larger than the diameter of the core metal 2 so that a space 7 is created between the winding core 4 and the core metal 2, and the core 4 is fitted into the core metal 2. And the rotation of the winding core 4 with respect to the core metal 2 is allowed.

A roller 9 is rotatably provided at a lateral position of the core metal 2 on the base 1 as a direction changing means for changing the direction of the wrapping paper 5 drawn out from the roll body 3 toward the paper feed passage 8. Has been done.

The paper feed passage 8 is constituted by a guide plate 10 on one side and a belt 11 on the other side. Two belts 11 are provided on the upper side and the lower side of the roller 12. The two belts 11 are provided on the upstream side in the vicinity of the roller 9 and the two upper and lower concave grooves of the roller 12 and the roller 13 disposed on the downstream side of the paper feed passage 8. It is stretched between the upper and lower concave grooves, and is rotated clockwise in the figure by a motor 14 that drives a roller 13 on the downstream side.

A curved portion 15 is formed on the downstream side of the guide plate 10 along the peripheral surface of the roller 13, and a straight portion 16 is formed from the curved portion 15 toward the side of the base 1. In the curved portion 15, there is rotatably arranged a pressing roller 18 which enters the paper feed passage 8 through a through hole 17 formed in an opening and contacts the belt 11.

A guide plate 19 is arranged on the base 1 so that the starting end portion is arranged on the other side of the paper feed passage 8 facing the linear portion 16 at the terminal end of the guide plate 10. The guide plate 19 has a curved portion 20 that bends toward the inside of the paper feed passage 8 with a small curvature near the start end side, and a curved portion that bends from this curved portion 20 toward a packaging portion 22 described later with a large curvature. The part 21 is formed.

The wrapping unit 22 includes three wrapping rollers 23. Between the wrapping rollers 23, a coin stacking unit (not shown) supplies, for example, 50 stacked coins C to the wrapping roller 23. The coins C are nipped and rotated by narrowing the space between the two and rotating in the direction of the arrow in the figure, and the wrapping paper 5 is supplied between the wrapping roller 23 and the coins C to wrap the wrapping paper on the peripheral surface of the coins C. 5 is wrapped. In addition, a winding needle (not shown) that winds and stops the upper and lower ends of the packaging paper 5 wound around the peripheral surface of the accumulated coin C is provided.

A support member 24 is erected on the base 1 at a position facing the passage outer surface side of the linear portion 16 of the guide plate 10, and a cutter 25 is attached to the support member 24. The cutter 25 is formed so that its tip portion faces the curved portion 20 of the guide plate 19 and its tip central portion projects in a substantially V shape.

A support shaft 26 is rotatably provided on the base 1 in the vicinity of the support member 24, and a disconnection detection lever body 27 is attached to the support shaft 26. In this disconnection detection lever body 27, a lever 28 is attached to a spindle 26, and a curved spring plate 29 corresponding to the curved portion 21 of the guide plate 19 is attached to the tip of the lever 28. The disconnection detection lever body 27 is urged to rotate in the clockwise direction indicated by the solid line in the figure by a spring (not shown).

Further, a detection piece 30 is attached to the support shaft 26, and a paper cutting device including an optical sensor corresponding to the position of the detection piece 30 when the cutting detection lever body 27 is positioned in the solid line position in the figure. A detection sensor 31 is provided. Then, the paper cutting detection sensor 31 is in a light-shielding state by the detection piece 30 at the position of the solid line of the cutting detection lever body 27 in the figure, and the cutting detection lever body 27 rotates in the counterclockwise direction shown by the chain double-dashed line in the figure. When it moves, it becomes a light emitting state.

Between the roller 9 and the core metal 2 (roll body 3), a switch 32 for detecting the absence of paper in the wrapping paper 5 is provided by a bracket 33 attached to the base 1. An operating portion 34 is provided on one side surface of the switch 32 so as to be able to move in and out. The operating portion 34 connects the center of the core metal 2 (winding core 4) and the wrapping paper contact position of the roller 9. It is located on a straight line and is pressed and turned on when the end of the wrapping paper 5 moves from the tangential position A of the winding core 4 to the normal position B.

Next, the operation of this embodiment will be described.

As shown in FIG. 1, when a new roll body 3 in which a large amount of wrapping paper 5 is wound is set, the wrapping paper 5 pulled out from the roll body 3 to the roller 9 is pulled from the peripheral surface of the roll body 3. It extends in the tangential direction, the portion of the wrapping paper between the roll body 3 and the roller 9 is separated from the operating portion 34 of the switch 32, and the switch 32 is off. The leading end of the wrapping paper 5 guided to the paper feed passage 8 through the roller 9 reaches a substantially middle position of the guide plate 19.

When the packaging operation is started, a predetermined number of coins (for example, 50 coins) are accumulated in the coin accumulating unit, and the accumulated coins C are supplied between the three packaging rollers 23 of the packaging unit 22, The accumulated coins C are nipped and rotated between the packaging rollers 23.

In this state, the motor 14 is driven to start the feeding of the wrapping paper 5, and the leading end of the wrapping paper 5 is sent along the curve of the guide plate 19 so as to bypass the stacking roller 23. It is supplied between the coins C and the wrapping paper 5 is wrapped around the peripheral surface of the accumulated coins C. At this time, for example, if the wrapping speed of the wrapping roller 23 is set to be higher than the paper feeding speed of the wrapping paper 5, the wrapping paper 5 is suddenly pulled to the wrapping unit 22 due to the difference in the feeding speed, and the wrapping paper 5 is tightened. The stretched wrapping paper 5 is pressed against the cutter 25 and cut into wrapping paper pieces of a predetermined length. Even if the wrapping speed of the wrapping roller 23 and the feeding speed of the wrapping paper 5 are set to be the same, or even if the motor 14 is stopped during the wrapping of the wrapping paper 5 to stop the feeding, Similarly, the packaging paper 5 can be cut.

Further, in the process in which the wrapping paper 5 is tensioned, the wrapping paper 5 pushes the cutting detection lever body 27 counterclockwise in the figure, and the paper cutting detection sensor 31 becomes a light emitting state, and When the wrapping paper 5 is completely cut, the cutting detection lever body 27 is rotated clockwise in the figure by the bias of the spring to return to the initial position, and the paper cutting detection sensor 31 is in the light-shielded state. . It is confirmed that the wrapping paper 5 has been cut by the change from the light shielding state to the light emitting state and the light emitting state to the light shielding state of the paper cut detection sensor 31.

In addition, the upper and lower ends of the wrapping paper piece wound around the peripheral surface of the accumulated coin C by the take-up needle are wound around the end surface of the accumulated coin C to complete the packaging.

Then, as the wrapping paper 5 is gradually used along with the wrapping operation, the number of windings of the wrapping paper 5 decreases and the radius of the roll body 3 decreases. At this time, the wrapping paper 5 pulled out from the roll body 3 to the roller 9 always extends tangentially from the peripheral surface of the roll body 3, and the wrapping paper portion between the roll body 3 and the roller 9 is the operating portion 34 of the switch 32. The switch 32 is off.

When the wrapping paper 5 is fed, just before the wrapping paper 5 is exhausted, the contact portion 6 of the wrapping paper 5 moves from the tangent position A of the winding core 4 to the normal position B, that is, the roll body. The wrapping paper portion between the roller 3 and the roller 9 moves from the wrapping paper position a to the wrapping paper position b, and the operating portion 34 of the switch 32 is pressed at this wrapping paper position to turn on, and the absence of paper is detected. .

Therefore, the portion of the wrapping paper between the roll body 3 and the roller 9 can be detected within a range of a few mm which moves from the wrapping paper position a to the wrapping paper position b, and the paper wrapping area is extremely simple, but the paper The end of the wrapping paper 5 can be detected reliably and exactly regardless of the type.

When the switch 32 is turned on and it is detected that there is no paper, the feeding of the wrapping paper 5 and the wrapping unit 22 immediately stop the wrapping. Therefore, the wrapping paper 5 can be used up to the end, and the occurrence of a problem caused by the adhesive portion 6 of the wrapping paper 5 being taken into the paper feed passage 8 can be prevented. Further, the stopped wrapping paper 5 can be easily removed together with the winding core 4 from the paper feed passage 8 or the like.

In the above embodiment, the paper non-detection device for roll paper of the coin wrapping machine has been described, but the present invention is also applicable to the paper non-detection device for roll paper used in ticket vending machines, printers and the like.

[0034]

[Effect of device]

 According to the present invention, when the adhesive part of the roll paper moves from the tangential position of the core to the normal position on the verge of disappearing the roll paper, the roll paper operates the operating part of the switch to detect the absence of paper. Therefore, the end of the roll paper can be detected reliably and rigorously regardless of the type of paper, despite the extremely simple structure.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a paper non-detecting device for roll paper according to the present invention.

[Explanation of symbols]

 4 core 5 wrapping paper as roll paper 9 roller as wrapping conversion means 32 switch 34 operating part

Claims (1)

[Scope of utility model registration request] 1. A roll paper non-detection device which is rotatably supported and whose end is adhered to a winding core and is pulled out from the front end to detect the roll paper not used, wherein the roll paper pull-out direction is Is provided between the direction changing means and the roll paper, and the operating portion is provided on a straight line connecting the center of the winding core and the roll paper contact position of the direction changing means. And a switch for detecting that there is no paper in the roll paper when the end of the roll paper moves from the tangential position of the winding core to the normal line position. No detection device.