JPH0653407U - Wrapping paper jam detector for coin wrapping machine - Google Patents

Abstract

(57) [Abstract] [Purpose] To quickly detect jamming of the wrapping paper in the wrapping section 3 and facilitate the subsequent releasing operation. [Configuration] The packaging unit 3 includes a plurality of packaging rollers 31 to 33,
Paper guides 41 to 44 are provided between the rollers 31 to 33. The accumulated coins C are nipped and rotated by a plurality of packaging rollers 31 to 33. The front end of the wrapping paper P is inserted between the wrapping roller 31 and the paper guide 41, and the wrapping paper P is wrapped around the peripheral surface of the stacking coin C to be wrapped. At a position approximately one turn in the winding direction from the insertion position of the front end of the wrapping paper P and at an end position where the accumulated coins C do not exist,
A paper detection unit S for detecting the presence or absence of the wrapping paper P is provided. At the time when the leading edge of the wrapping paper P should reach the position of the paper detecting means S,
If the wrapping paper P is not detected, a control unit 101 that determines that the wrapping paper is jammed and stops the wrapping operation is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a wrapping paper jam detecting device for a coin wrapping machine, which wraps a wrapping paper around a peripheral surface of a stack of a predetermined number of coins.

[0002]

[Prior art]

 Conventionally, for example, a coin wrapping machine and a wrapping paper bite releasing method described in JP-A-61-164909 are known.

This has a wrapping paper biting detection unit in the wrapping unit, and when the biting detection unit detects the wrapping paper biting, it stops the wrapping roller drive unit and the wrapping cycle operation unit. The wrapping paper is not caught by reversing the wrapping roller.

Further, the bite detection section is provided with a friction transmission section in the drive system of the packaging roller, and an uneven portion is formed at a constant pitch all over the periphery on the downstream side (the packaging roller side) from the friction transmission section. If the packaging roller is rotating normally, the detector will detect a continuous pulse. When a braking force is applied to one of the packaging rollers due to biting of wrapping paper and accumulated coins inside the unit, the friction transmission unit begins to slip and the detector no longer detects continuous pulses at fixed time intervals. Therefore, the biting is detected by the change of the pulse.

[0005]

[Problems to be solved by the device]

 However, in the past, when the wrapping paper was caught, the wrapping roller could not be detected until the wrapping roller stopped due to jamming or the rotation speed decreased. In this case, the biting is quite severe, and the biting may not be released even if the packaging roller and the packaging cycle operating part are stopped and the packaging roller is driven in the reverse direction. There is a problem that the crowd cannot be removed.

When the leading edge of the wrapping paper is caught in the paper guide and does not move forward, the braking force does not act on the wrapping roller and the wrapping roller itself rotates normally. There is a problem that can not be detected as.

Therefore, the present invention has been made in view of the above point, and a jam of a coin wrapping machine for a coin wrapping machine that can quickly detect a jam of the wrapping paper in the wrapping portion and facilitate the subsequent releasing operation. An object is to provide a detection device.

[0008]

[Means for Solving the Problems]

 The present invention comprises a packaging unit 3 having a plurality of packaging rollers 31-33 and paper guides 41-44 provided between the rollers 31-33, and the coins accumulated by the plurality of packaging rollers 31-33. While pinching and rotating C, the leading end of the wrapping paper P is inserted from one position in the gap between the wrapping rollers 31 to 33 and the paper guides 41 to 44, and the wrapping paper P is wrapped around the peripheral surface of the accumulated coin C to be wrapped. In the coin wrapping machine, the wrapping paper P is provided at one end of the paper guide 44 at a position approximately one turn in the winding direction of the wrapping paper P from the insertion position of the leading end of the wrapping paper P and at the end position where the accumulated coins C do not exist. The paper detecting means S for detecting the presence or absence of P, and the wrapping paper P sent to the wrapping section 3 so that the front end of the wrapping paper P should reach the position where the paper detecting means S is provided. If the detection means S does not detect the wrapping paper P, it is determined that the wrapping paper is jammed. It is obtained by a control unit 10 1 for controlling so as to stop the driving of the instrumentation roller 31 to 33.

[0009]

[Action]

 According to the present invention, in the wrapping section 3, the accumulated coins C are nipped and rotated by the plurality of wrapping rollers 31 to 33, and the tip of the wrapping paper P is fed from one position in the gap between the wrapping rollers 31 to 33 and the paper guides 41 to 44. Is supplied, and the wrapping paper P is wrapped around the peripheral surface of the accumulated coin C and wrapped. When the wrapping paper P is fed into the wrapping unit 3, the presence or absence of the wrapping paper P is detected by the paper detecting means S arranged at a position substantially one turn in the winding direction of the wrapping paper P from the insertion position of the leading end of the wrapping paper P. To be done. Particularly, since the paper detecting means S is provided at the end position where the accumulated coins C of the wrapping paper P do not exist, the wrapping paper P can be reliably detected without erroneously detecting the accumulated coins C as the wrapping paper P. is there. When the leading edge of the wrapping paper P should reach the position where the paper detecting means S is provided, if the paper detecting means S does not detect the wrapping paper P, it is determined that the wrapping paper is jammed and the wrapping roller 31 The drive of ~ 33 is stopped. Therefore, the jam of the wrapping paper in the wrapping unit 3 is detected early before the biting becomes severe, and the subsequent releasing operation becomes easy.

[0010]

【Example】

 Hereinafter, a configuration of an embodiment of a paper jam detector for a coin packaging machine according to the present invention will be described with reference to FIGS. 1 and 7.

FIG. 3 shows a schematic structure of a coin wrapping machine, which includes a feeding unit 1 for receiving coins to be wrapped and feeding them one by one, and a stacking unit 2 for receiving coins fed from the feeding unit 1 and collecting a predetermined number of coins. The packaging unit 3 that receives and wraps the accumulated coins accumulated in the accumulating unit 2, the wrapping paper supply unit 4 that supplies the wrapping paper P to the wrapping unit 3, and the packaging coins and the bulk coins that are created in the wrapping unit 3. And a sorting unit 5 for sorting coins.

The feeding unit 1 includes a rotary disc 11 that receives coins to be packed and feeds them one by one, and a coin passage 12 that conveys the coins fed from the rotary disc 11 to the stacking unit 2. Then, the rotating disk 11 is rotationally driven by the motor M1, and the coins on the rotating disk 11 are moved to the peripheral edge by the centrifugal force due to the rotation and are moved along the peripheral wall 13 and are provided on a part of the peripheral wall 13. It passes under the thickness control unit 14 and is fed to the coin passage 12 one by one.

In the coin passage 12, side plates 16 are provided on both sides of an upper surface of a bottom plate 15, and a conveyor belt 17 is stretched along the upper side of the bottom plate 15. Then, the conveyor belt 17 is rotationally driven by the motor M2, and the coins fed from the rotary disk 11 are conveyed in the coin passage 12.

At the end of the coin passage 12, a counting sensor 18 and a confirmation sensor 19 are arranged in this order from the upstream side, and a solenoid SD1 is provided between the sensors 18 and 19 so that the coin sensor 12 is located inside the coin passage 12. A stopper 20 that is driven forward and backward is provided. Then, when the counting sensor 18 detects a coin of the number of packaging units (for example, 50th coin), the stopper 20 enters the passage and the coin (51st coin) next to the number of packaging units is stopped, The confirmation sensor 19 confirms the number of coins actually delivered from the coin passage 12 to the stacking unit 2.

The stacking unit 2 includes a belt cylinder 21 that stacks coins. The belt cylinder 21 has a pair of belts 23 having protrusions 22 at surface symmetry positions. The pair of belts 23 are rotatably stretched between upper and lower rollers 24 with the surfaces of the pair of belts 23 facing each other. The opposing surfaces of the pair of belts 23 are synchronously rotated in the same direction by the motor M3. In this belt cylinder 21, coins fed from the end of the coin passage 12 are placed between the protrusions 22 of both belts 23, and the pulse motor M3 is driven by a predetermined pulse each time one coin is placed, so that both belts 23 are fed. The coin supporting position of the protrusion 22 is lowered, and coins corresponding to the packaging unit number are accumulated between the belts 23.

A guide plate 25 is arranged on the side of the belt cylinder 21 on the coin passage 12 side, and a guide plate (not shown) is arranged on the opposite side of the belt cylinder 21, and a solenoid (not shown) is arranged on the bottom of the belt cylinder 21. A shutter 26 that can be opened by the above is provided.

The wrapping unit 3 includes three wrapping rollers 31, 32, and 33 that wind the wrapping paper P while sandwiching and rotating the stacked coins supplied from the stacking unit 2, A wrapping space 34 is formed between the wrapping rollers 31 to 33. The wrapping rollers 31 and 32 are rotatably supported at fixed positions, and are rotationally driven by a motor M4 in the direction of the arrow in the figure. As shown in FIGS. 1 and 2, the packaging roller 33 is rotatably supported by a swing member 35, and the swing of the swing member 35 causes the packaging space 34 to be opened and closed in the coin radial direction.

The swinging member 35 includes a support plate 36 that rotatably supports the vertical axis of the packaging roller 33 on one end side, and an arm portion 37 projecting from the support plate 36 is rotatably supported by a support shaft 38. The roller 39 is supported and is swingable around the support shaft 38 as a fulcrum. A roller 39 rotatably provided at the other end of the support plate 36 is provided on a cam shaft (not shown) that controls a series of packaging operations in one rotation. It is in contact with one cam. Then, the swinging member 35 swings in conjunction with the rotation of the cam shaft to the retracted position in which the packaging roller 33 separates from the packaging roller 31 at the time of supplying the accumulated coins C and at the time of discharging after the packaging coins are produced, Further, when the accumulated coins C are wrapped, as shown in the figure, the wrapping roller 33 is swung to a wrapping position where it abuts the peripheral surface of the accumulated coins C.

Paper guides 41, 42, 43, 44 are provided between the packaging rollers 31, 32, 33, respectively. The paper guide 41 is fixedly supported and has an introduction portion 41a that guides the wrapping paper P supplied from the wrapping paper supply unit 4 to the wrapping unit 3 and has an arc shape along the peripheral surface of the accumulated coins C. The guide portion 41b is formed, and an insertion portion 45 that guides the leading end of the wrapping paper P to the peripheral surface of the accumulated coin C is formed between the guide portion 41b and the wrapping roller 31.

Further, the paper guides 42 to 44 are movable so as to reduce and enlarge the packaging space 34 and open and close a part thereof. The paper guide 42 is moved in the coin radial direction in conjunction with the paper guide 43. In the paper guide 43, an arc-shaped guide portion 43a is formed along the peripheral surface of the accumulated coin C, and an opening 43b through which the packaging roller 32 projects is formed at the center of the guide portion 43a. And a roller 47 rotatably supported about the shaft of the packaging roller 32 via upper and lower support plates 46 and rotatably provided on the support plate 46 contacts a cam 48 of the swing member 35. It is biased by a spring (not shown) so as to maintain the state. The paper guide 44 is attached to the swing member 35, and an arc-shaped guide portion 44a is formed along the peripheral surface of the accumulated coin C, and the packaging roller 33 projects at the center of the guide portion 44a. The opening portion 44b is formed.

Then, in the standby state in which the swinging member 35 is moved to the retracted position, the paper guide 43 is swung to a position slightly retracted counterclockwise from the illustrated paper guide position, and the paper guide 42 is moved. Is retracted from the paper guide position, and the packaging roller 33 and the paper guide 44 are moved away from the packaging roller 31 and the paper guide 41 to the position where the side surface of the packaging space 34 is opened. In this state, the guide rod 49 of the wrapping unit 3 can move up and down in the wrapping space 34 through the space between the paper guides 41 and 44, and the guide rod 49 is positioned below the belt cylinder 21 of the stacking unit 2. Then, the shutter 26 is opened to receive the discharged coins C, and the guide bar 49 descends as it is, and the accumulated coins C are supplied to the packaging space 34.

On the other hand, when the swinging member 35 is moved to the packaging position after the accumulated coins C are supplied to the packaging space 34, the paper guide 43 is swung to the paper guide position in the clockwise direction in the drawing. The paper guide 42 is advanced to the paper guide position, and the wrapping roller 33 contacts the stacking coin C, and the stacking coin C is sandwiched between the wrapping rollers 31 to 33, and the paper guide 44 approaches the paper guide 41. And is moved to a paper guide position that closes the packaging space 34.

In the sandwiched state of the accumulated coin C, the wrapping rollers 31 to 33 are rotated to rotate the accumulated coin C, and the leading end of the wrapping paper P supplied from the wrapping paper supply unit 4 is guided by the paper guides 41 to 44. Is guided along the peripheral surface of the accumulated coin C, and is wound around the peripheral surface of the accumulated coin C by the packaging rollers 31 to 33. Furthermore, the upper and lower edges of the wrapping paper P are wound around the end surface of the accumulated coin C by the pair of upper and lower winding needles 50, and a bar-shaped wrapping coin is created.

The take-up needle 50 is attached to one end of an elevating lever 51, and when the elevating lever 51 is moved up and down, it can be moved toward and away from each end face of the accumulated coin C. There is.

A mounting plate 61 is attached to the side surface of the paper guide 44, and a switch mounting portion 62 at the lower end of the mounting plate 61 extends in the winding direction of the wrapping paper P from the insertion portion 45 at the front end of the wrapping paper P. A paper detecting means S for detecting the presence or absence of the wrapping paper P is provided at an end position where the accumulated coins C do not exist in the paper guide 44 at a position where the paper guide 44 is substantially rotated. The paper detecting means S is composed of a mechanical contact type switch, and is composed of a metal contact plate 63 having conductivity and a metal detection lever 64 having contact with and separating from the contact plate 63 and having conductivity and spring. Has been done. The contact plate 63 is attached to the center of the outer surface of the switch attachment portion 62, and has a convex contact 63a. The detection lever 64 has a base end portion which is attached to the outer end side of the outer surface of the switch attachment portion 62 with a screw 66 via a non-conductive base plate 65, and has a convex contact point 64a which enables contact with the contact point 63a in the middle portion. And a roller 68 is rotatably supported by a substantially U-shaped shaft supporting portion 67 at the tip end thereof in the rotation direction of the accumulated coin C. The roller 68 is packaged through the notch 62a of the switch mounting portion 62. It is designed to elastically advance into the space 34.

Then, a detection current is applied to the contact plate 63 and the detection lever 64 via the lead wire 69. As shown in FIG. 4 (a), when the wrapping paper P is not present in the wrapping space 34 (when the wrapping paper P is not supplied and when the paper is jammed), the roller 68 enters the wrapping space 34 to detect the detection level. 64 is swung inward, contacts 63a and 64b come into contact with each other, and a detection current flows, so that the absence of wrapping paper is detected. Further, as shown in FIG. 4 (b), when the front end of the wrapping paper P is normally wound around the peripheral surface of the accumulated coin C, the roller 68 comes into contact with the wrapping paper P and the detection lever 64 moves outward. The contacts are oscillated, the contacts 63a and 64a are separated, the detection current is cut off, and the presence of wrapping paper is detected.

The passage width of the coin passage 12, the width of the belt cylinder 21, the spacing between the packaging rollers 31 to 33, etc. are adjusted for each denomination.

As shown in FIGS. 2 and 3, the wrapping paper supply unit 4 has a roll R in which a band-shaped wrapping paper P made of polyester or the like is wound on a wrapping paper setting table 71, Wrapping paper feeding means 73 for feeding the wrapping paper P to the wrapping unit 3 is provided on the table 72.

The wrapping paper feeding means 73 includes a roller 74 and a roller 75 pressed against the roller 74. The roller 74 is rotationally driven by the motor M5 in the direction of the arrow in the figure and is rotated by the paper feeding amount detection sensor PI1. The amount, that is, the feeding amount of the wrapping paper P is detected. The paper feed amount detection sensor PI1 is composed of a photo interrupter, and has a light emitting device and a light receiving device facing the upper and lower surfaces of the peripheral portion where the slit 77 of the rotation detecting plate 76 which rotates integrally with the roller 74 is provided. The feeding speed of the wrapping paper P accompanying the winding in the wrapping unit 3 is set to be higher than the feeding speed of the wrapping paper P of the wrapping paper feeding means 73.

A guide member 78 for non-linearly guiding the wrapping paper P fed from the wrapping paper feeding means 73 to the wrapping portion 3 is arranged from the wrapping paper feeding means 73 to the wrapping portion 3. The guide member 78 is formed in an arc shape, the downstream end of the wrapping paper P in the feed direction is continuously exposed to the paper guide 41, and the upstream end of the wrapping paper P is the fulcrum about the support shaft 79. It is swingably supported so that it can be rotated when the wrapping paper P is replaced or repaired. A guide plate 80 for guiding the wrapping paper P is arranged between the rollers 74, 75 and the guide member 78.

Further, on the side portion of the guide plate 80, the wrapping sheet P is pulled and linearly displaced due to the difference in the wrapping sheet feeding speed between the wrapping sheet feeding means 73 and the rollers 31 to 33 of the wrapping section 3. A cutter 81 for contacting the wrapping paper P and cutting the wrapping paper P is sometimes provided. The cutter 81 is formed in a shape such that the central portion thereof projects in a V shape in the feeding direction of the wrapping paper P, and is attached on the substrate 72 via a supporting member 82.

Further, a cutting detection lever 83 is arranged on the side of the introduction portion 41a of the paper guide 44. The disconnection detection lever 83 is swingably supported with a support shaft 84 as a fulcrum and is urged to a position indicated by a solid line in FIG. 2 by an urging means (not shown) to move the wrapping paper P linearly. Is swung to the position indicated by the two-dot chain line. Then, a detection plate 85 is attached to the lower end of the support shaft 84, and the swing of the cutting detection lever 83 is detected by a paper cutting detection sensor PI2 composed of a photo interrupter that detects the detection plate 85.

The distribution unit 5 has a chute 91 disposed below the wrapping rollers 31 to 33 of the wrapping unit 3, and receives the packaging coins created and discharged by the wrapping unit 3 in a vertical posture, It is converted into a horizontal posture and discharged from the lower discharge port 92.

Further, in the middle of the chute 91, a chute 93 is continuously provided, and a shutter 94 which is rotated by the solenoid SD2 is provided. Normally, the shutter 94 enters the shoot 91. In this case, coins that fall due to collapsing in the stacking unit 2 or the packing unit 3 and the fraction that does not reach the number of packaging units or coins that are discharged after being determined as defective stacking are guided to the chute 93, while the coins are packed. The shutter 94 is retracted from the inside of the chute 91 at the time of discharging the.

Further, at the lower end of the chute 93, a pair of chutes 95 and 96 are continuously provided, and a shutter 97 rotated by a solenoid SD3 is provided. A storage box 98 for collection that requires an unlocking operation for the coin wrapping machine side is arranged under the shoot 95, and a chute 96 is provided under the chute 96 for return, which can be freely taken out from the coin wrapping machine. Can be selectively stored in the storage box 99.

FIG. 5 shows a control unit 101 that controls the wrapping unit 3 and the wrapping paper supply unit 4. The control unit 101 includes a paper feed amount detection sensor PI1, a paper cutting detection sensor PI2, and a paper detection sensor S. A signal is input to control the motors M1 and M2.

Then, the control unit 101 causes the paper detecting unit S to move at least when the leading edge of the wrapping paper P should reach the position where the wrapping paper P is sent to the wrapping unit 3 and the paper detecting unit S is provided. When the wrapping paper P is not detected, it has a function of determining that the wrapping paper is jammed and controlling the driving of the wrapping rollers 31 to 33 to stop.

Next, the wrapping operation of the wrapping unit 3 will be described with reference to the flowchart of FIG. 6 and the timing chart of FIG.

When the stacked coins C are supplied from the stacking unit 2 to the packing space 34 of the packing unit 3 and the stacked coins C are sandwiched between the packing rollers 31 to 33, the motors M4 and M5 are respectively rotated in the forward direction (swing). Steps 1 and 2, timing t1). Therefore, the wrapping rollers 31 to 33 are rotated to rotate the accumulated coins C, and at the same time, the wrapping paper feeding means 73 starts to feed the wrapping paper P.

The leading edge of the wrapping paper P sent out from the wrapping paper feeding means 73 is guided along the guide member 78 toward the wrapping section 3 in a non-linear manner, and is also guided to the introduction section 41a of the paper guide 41 to wrap it. It is guided between the wrapping roller 31 and the accumulated coin C through the insertion portion 45 between the roller 31 and the paper guide 41, and is wound around the peripheral surface of the coin C by the wrapping rollers 31 to 33 and the paper guides 41 to 44. It is turned around.

When the front end of the wrapping paper P is gripped between the wrapping roller 31 and the stacking coin C, the feeding speed at which the wrapping rollers 31 to 33 are wound is higher than the feeding speed of the wrapping paper feeding means 73. Therefore, due to the difference in the feeding speed, the wrapping paper P is suddenly pulled and displaced linearly, pressed against the cutter 81 and cut into pieces of wrapping paper of a predetermined length.

Note that the paper cutting detection lever 83 is pushed by the wrapping paper P as the wrapping paper P moves linearly, and the paper cutting detection sensor PI2 turns on just before the wrapping paper P is cut. When the wrapping paper P is cut and the cutting detection lever 83 returns, the paper cutting detection sensor PI2 is turned off, so that the cutting of the wrapping paper P is detected.

Until the cutting of the wrapping paper P is detected, the feed amount of the wrapping paper P is monitored by the paper feed amount detection sensor PI1 (step 3), and the timer of the control unit 101 is operated. The paper feed elapsed time is monitored by the function (step 4). For example, when the wrapping paper P is set, the leading edge of the wrapping paper P is not securely gripped between the rollers 74 and 75 of the wrapping paper feeding means 73, or the cutter is provided. If the paper feed amount exceeds the specified value or the specified time due to a problem in the wrapping paper supply unit 4 that the wrapping paper P cannot be cut at 81, the wrapping paper supply unit 4 determines that an error has occurred and notifies it. And so on (step 5).

When the paper cut detection sensor PI2 detects the cut of the wrapping paper P (step 6, timing t2), the motor M5 is braked and stopped (step 7), and the wrapping paper feeding means 73 outputs The feeding of the wrapping paper P is stopped.

Further, at the specified time (timing t3) at which the leading edge of the wrapping paper P should reach the position where the wrapping paper P is sent to the wrapping unit 3 and the paper detecting means S is provided, the paper detecting means S is detected. Then, it is monitored whether or not the wrapping paper P is detected (step 8).

When the front end of the wrapping paper P sent to the wrapping unit 3 is normally wound along the peripheral surface of the accumulated coin C, the wrapping paper P is detected by the paper detecting means S at the specified time. Therefore, the packaging operation is continued, and a packaging coin in which the wrapping paper P is normally wound around the peripheral surface of the accumulated coin is created (step 9, the timing chart of FIG. 7 shows the operation in the normal state by a broken line). ).

On the other hand, when the leading end of the wrapping paper P fed into the wrapping unit 3 is caught or is caught by the paper guides 41 to 44 and does not move, the wrapping paper P is detected by the paper detecting means S at the specified time. Is not detected, so the motor M4 is braked and stopped (step 10, timing T4), and a notification etc. is given that a paper jam error has occurred in the packaging unit 3 (step 11).

As described above, the jam of the wrapping paper in the wrapping section 3 can be detected quickly before the biting becomes severe, and the subsequent releasing operation can be easily performed. Further, since the paper detection means S detects the presence or absence of the wrapping paper P at the end position where the accumulated coins C of the wrapping paper P do not exist, it is possible to detect the wrapping paper P without being affected by the accumulated coins C. it can.

FIG. 8 shows another embodiment of the present invention. In this embodiment, an optical sensor is used as the paper detection means S, and a light emitter 111 for emitting detection light and a light receiver for receiving detection light are used. 112 are arranged so that the detection light is reflected by the surface of the wrapping paper P that is normally guided to the wrapping space 34 and is projected and received. In the case of this optical sensor, even if the wrapping paper P is made of a transparent material, the detection light is radiated to the wrapping paper P 1 by setting the incident angle α for irradiating the wrapping paper P 2 with the detection light to a small value. The light reflected by the surface can be detected by the light receiver 11 2. Therefore, also in this embodiment, the same operational effect as that of the above-mentioned embodiment can be obtained.

[0050]

[Effect of device]

 According to the present invention, when the wrapping paper is fed to the wrapping unit, the paper is arranged at a position approximately one turn in the winding direction of the wrapping paper from the insertion position of the leading end of the wrapping paper and at the end portion where the accumulated coins do not exist. If the detection means detects the presence of the wrapping paper and the paper detection means does not detect the wrapping paper at the time when the leading edge of the wrapping paper should reach the position where the paper detection means is provided, the wrapping paper jam will occur. The packaging operation can be stopped by making a judgment. Therefore, the jam of the wrapping paper in the wrapping section can be detected before the biting becomes severe, and the subsequent releasing operation can be easily performed.

[Brief description of drawings]

FIG. 1 is a perspective view of a packaging unit showing an embodiment of a wrapping paper jam detecting device of a coin wrapping machine of the present invention.

FIG. 2 is a plan view of a packaging unit of the coin packaging machine according to the above embodiment.

FIG. 3 is a perspective view showing the outline of the coin wrapping machine of the above embodiment.

FIG. 4 is a plan view of the paper detection unit of the above embodiment, (a)
Shows the state with wrapping paper, and (b) shows the state without wrapping paper.

FIG. 5 is a control block diagram of the embodiment.

FIG. 6 is a flowchart of the packaging operation of the above embodiment.

FIG. 7 is a timing chart of the paving operation of the above embodiment.

FIG. 8 is a block diagram of a paper detection means showing another embodiment of the present invention.

[Explanation of symbols]

 3 Wrapping section 31, 32, 33 Wrapping roller 41, 42, 43, 44 Paper guide 101 Control section C Collected coins P Wrapping paper S Paper detecting means

Claims (1)

[Scope of utility model registration request] 1. A packaging unit having a plurality of wrapping rollers and a paper guide provided between the wrapping rollers, wherein the plurality of wrapping rollers nip and rotate the accumulated coins, and a gap between the wrapping roller and the paper guide is provided. A coin wrapping machine that inserts the tip of the wrapping paper from one location, winds the wrapping paper around the peripheral surface of the accumulated coins, and wraps the coins at a position approximately one turn in the winding direction of the wrapping paper from the insertion location of the tip of the wrapping paper. One of the paper guides, which is provided at an end position where there are no accumulated coins, and which detects the presence or absence of wrapping paper; and a wrapping paper fed into the wrapping section, the paper detecting means being provided. And a control unit for controlling the drive of the wrapping roller to be stopped when the paper detecting means does not detect the wrapping paper when the leading edge of the wrapping paper should reach the position Featuring That the coin wrapping machine of wrapping paper jam detection device.