JPH10118320A - Automatic winder for cloth-belt for polishing balls - Google Patents

Abstract

PROBLEM TO BE SOLVED: To externally check whether the cloth-belt winder is normally working or not, by transmitting the error signal of the automatic winder upon the slip detector sensor detecting a lower rotation of press-contact rollers than a preset value. SOLUTION: The tension unit 38, upon driving the motor at a state of emergency stopping the stopper, pull-moves downward the cloth belt 40 via the forces in contact with the drive roller 64 and the press-contact rollers 76, 77. Detecting then turning the screw 77a buried into the press-contact roller 77 via the slip detector sensor 79, allows for knowing the current turning frequency them. If this frequency of the contact-press roller 77 is lower than a given frequency, it shows a case that the cloth belt 40 is not normally tensed due to a slip and the like. The error signal can, therefore, externally be transmitted via the cord 79a to warn out the error of the tension unit 38.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pachinko ball-lifting machine, which is installed in a doffing and feeding device storage section formed at the center of a pachinko island stand, and faces a conveyor belt and a ball polishing cloth belt to polish pachinko balls. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cloth polishing automatic winding mechanism for polishing a ball used in a ball-lifting device held and fed.

[0002]

2. Description of the Related Art The present applicant has previously described a doffing and feeding device which automatically takes up a cloth belt on which dirt has adhered.
The technology disclosed in Japanese Patent Application No. 3-190678 (published as Japanese Patent Application Laid-Open No. 5-7662) and Japanese Patent Application No. 6-109803 (published as Japanese Patent Application No. Hei 7-313720) has been proposed. . In these prior arts, a driving roller is rotationally driven by a motor, and a cloth belt is pressed by a pressing roller together with the driving roller to wind up the cloth belt.

[0003]

However, in the above-mentioned prior art, abnormalities such as slippage may occur during the winding operation of the cloth belt, and the winding operation may not be performed normally. In such a case, there has been a problem that it is not possible to externally check whether or not the work of winding the cloth belt is normally performed. The present invention
In view of the above-mentioned circumstances, the purpose of the present invention is to provide a ball polishing cloth belt automatic winding mechanism capable of externally checking whether or not the cloth belt winding operation is normally performed. Is to provide.

[0004]

In order to achieve the above-mentioned object, in the present invention, as shown in FIG. Further, in the ball polishing automatic belt winding mechanism used in the ball lifting device 5 used for the ball lifting device 5 which holds the conveyor belt 44 and the ball polishing cloth belt 40 facing each other while polishing and pachinko balls, The automatic belt take-up mechanism includes a storage device 41 that stores the roll-shaped cloth belt 40 before use, a winding device 39 that winds the used cloth belt 40 in a roll shape, and a cloth that faces the transport belt 44. Stopping device 42 for stopping the movement of the cloth belt 40 by chucking the lower portion of the belt 40
A pulling device 38 that pulls the upper portion of the cloth belt 40 facing the transport belt 44 by a driving force of a motor. The pulling device 38 includes a driving roller 64 that is rotationally driven by the motor 69, Pressing rollers 76 and 77 for pressing the cloth belt 40 together with the driving roller 64.
And a slip detection sensor 79 for detecting the number of rotations of the pressing rollers 76 and 77. The number of rotations of the pressing roller 77 is predetermined by the slip detection sensor 79 during the automatic winding period of the cloth belt 40. An automatic winding abnormality signal is output when the rotation speed is lower than the rotation speed. With this configuration, when an abnormality such as a slip occurs during the winding operation of the cloth belt 40 and the winding operation is not performed normally, the occurrence of the abnormality can be notified to the outside. .

[0005] The pulling device 38 is provided on one side of the doffing and conveying device 5 so as to be openable and closable, and has a guide rail cover 37 on which the cloth belt 40 circulates so as to face the transport belt 44. The tensioning device 38 is provided with a slack detection sensor 78 for detecting that the tensioning device 38 has slid to reach a lower position due to the extension of the cloth belt 40. By driving the motor 69 by the detection sensor 78 and winding the cloth belt 40 to constantly maintain the tension of the cloth belt 40, the tensioning device 38 can always keep the tension of the cloth belt 40 constant.

The first position and the tension when the cloth belt 40 inserted between the stopping device 42 and the storage device 41 abuts with a predetermined tension are provided on the stopping device 42. A cloth belt contact piece 93 capable of taking a second position when the cloth belt is loosened, and a position detection sensor 96 for detecting that the cloth belt contact piece 93 is at the first position,
By outputting a cloth belt replacement signal based on the detection output of the position detection sensor 96 being lost, it is detected that the roll-shaped cloth belt 40 has been used to the end and notified to the outside. Can be exchanged.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. First, a schematic configuration of the pachinko island stand 1 according to the present embodiment will be described with reference to FIG. FIG. 1 is a longitudinal sectional view showing the internal structure of the pachinko island stand 1.

As shown in FIG. 1, a pachinko island stand 1 has a rectangular parallelepiped frame structure, and a pachinko machine 2 is arranged at the center in the longitudinal side of the pachinko machine stand.
Further, on the pachinko island stand 1, a ball return device 3 for returning the pachinko balls obtained by the pachinko machine 2 is provided in a side of the pachinko machine 2 in one side of the pachinko machine storage unit 4 in the center thereof. However, it is desirable that the ball return device 3 is provided on the side of the second row of pachinko machines in which the later-described non-priority storage tank 12 is incorporated. This is because the storage tank 12 on the non-priority side, which is almost never full under normal business conditions.
This is because it is possible to reliably return the prize balls from the ball return device 3 to the ball. A return port is formed in the ball return device 3, and the pachinko balls (prize balls) returned from the return port are guided onto an upper gutter 21 described later. Further, although not shown, the return opening of the ball return device 3 is driven to open and close by an electric drive source (for example, a motor or a solenoid).

A doffing and feeding device storage unit 4 is formed substantially at the center of the pachinko island stand 1, and a doffing and feeding device 5 is stored and installed in the doffing and feeding device storage unit 4. The detailed configuration and operation of the doffing device 5 will be described later. An upper tank 6 for temporarily storing the pumped pachinko balls is provided above the ball pumping device 5. Replenishing gutters 28 are provided on the left and right from the upper tank 6 in an inclined manner so that pachinko balls flow down from the upper tank 6. The supply gutter 28 is provided with a distribution chute (not shown) corresponding to each pachinko machine 2.
The pachinko balls that flow down 8 are taken in.
The pachinko balls taken in by the distribution chute are counted by a counting device (not shown) provided at the lower part of the distribution chute, and then supplied to a prize ball tank (not shown) provided at an upper rear surface of the pachinko machine 2 to be played. Used as a prize ball paid out to the player by the player. In addition,
FIG. 1 illustrates a pachinko island rental machine 1 without a tama ball rental machine, but in a case where a tama ball rental machine is provided so as to be sandwiched between the pachinko machines 2, A distribution chute is provided so as to correspond to the tama ball lending machine.

At the lower end of the supply gutter 28, a ball separator 25 is provided. Unused pachinko balls flowing down the supply gutter 28 are introduced into the ball separator 25, and finally, an out ball described later. It is guided to the guiding gutter 10. The ball separator 25 is provided with a ball removal stopper device 26. Although not shown in detail, the ball separator 25 is formed in a bent shape in the ball separator 25 so that the pachinko balls are aligned in a line and flow down. On the bottom surface, a part of a stopper piece rotatably supported on a shaft is configured to be able to enter and retreat, and the stopper piece is driven by a keep solenoid as an electric drive source, so that a ball removal tube described below is provided. The flow of the ball to 27 can be controlled. Further, a bellows-shaped ball extraction tube 27 is connected to the end of the passage body of the ball separator 25, so that the pachinko balls taken in from the ball separator 25 can be guided to the out ball guiding gutter 10. I have. With this configuration, when the ball lifting device 5 is driven in a state where the ball removal stopper device 26 allows the balls to flow down, the balls circulate in the pachinko island 1 and the circulation Moisture and dust attached to the ball can be removed, and preparations before starting work can be easily performed.

Further, the above-mentioned upper tank 6 is provided so as to communicate with an AC tank 7 which constitutes a ball AC device inserted between the plurality of pachinko island stands 1. In addition,
Although not shown in detail, the ball AC device includes an AC tank 7 and an AC upper gutter (not shown) that is gently inclinedly connected from the AC tank 7 to the AC tank 7 of the adjacent pachinko island stand 1. An AC lower arch gutter (not shown) is configured to receive an AC ball from the AC tank 7 of the adjacent pachinko island stand 1 in a lower portion of the AC tank 7. Further, the upper tank 6 and the alternating current tank 7 are covered with a cover body 8, but this cover body 8 is desirably detachably mounted.

On the other hand, storage tanks 11 and 12 are provided on the lower side of the pachinko island stand 1 and on both sides of the doffing and feeding device 5. The storage tanks 11 and 12 are formed larger as a larger amount of pachinko balls are stored. In particular,
The number of pachinko balls stored in the storage sections of the storage tanks 11 and 12 is such that the number of pachinko machines 2 installed on the pachinko island stand 1 can sufficiently cope with various game states (for example,
(150,000 to 200,000 each).

The used balls discharged from each pachinko machine 2 are discharged downward from a ball discharge nozzle (not shown) of the out-ball box 9 having a counting function. In the pachinko machine 2 at a position facing the storage tanks 11, 12, the ball discharge nozzle is inclined downward from the downstream end (to the center of the island) toward the upstream end at the center of the storage tanks 11, 12. In the pachinko machine 2 which is disposed facing the out ball guiding inner gutter 13 provided and is separated from the storage tanks 11 and 12, the out ball guiding gutter 10 which is inclined downward from the island end toward the storage tanks 11 and 12 is provided. It is arranged to face. The out ball guiding gutter 10 is connected to a merging box 14 attached to the outside of the upstream end side walls of the storage tanks 11 and 12, and the out ball guiding inner gutter 13 is also connected to the merging box 14. 14 is connected to an out ball guiding / merging gutter 15 which is arranged along the lower part of one side wall of the storage tanks 11 and 12 toward the introduction gutter 18 of the ball lifting / feeding device 5. Therefore, the used balls discharged from each pachinko machine 2 are:
It is preferentially guided to the entrance portion of the ball lifting device 5 through the out ball guiding inner gutter 13 or the out ball guiding gutter 10, the merging box 14, and the out ball guiding merging gutter 15. However, the left and right storage tanks 11 and 12 have slightly different structures depending on the arrangement of the doffing and feeding device 5 as described later, but this will be described later.

The storage tanks 11 and 12 are respectively connected to overflow boxes 22 for returning the pachinko balls overflowing from the upper tank 6 and the AC balls flowing from the AC tank 7 to the lower part. The overflow box 22 is a rectangular parallelepiped box provided so as to use the space adjacent to the doffing and conveying device 5, and the inside thereof is vertically partitioned by a branch partition 23. The branch partition 23 is provided close to one side of the overflow box 22 and forms a box priority passage 22a by alternately providing a plurality of flow-down plates in a stepwise manner in a passage on one side communicating with the wide area thereof. A plurality of flow-down plates are alternately provided in steps on the other side of the passage that communicates with the narrow region to form the box non-priority passage 22b.

However, the pachinko balls overflowing from the upper tank 6 and the AC balls flowing from the AC tank 7 are preferentially guided to the box priority passage 22a, and when the box priority passage 22a is full, the box non-passage is stopped. It overflows into the priority passage 22b. And
Box priority passage 22a and box non-priority passage 22b
Is the storage tank 11 on the left (hereinafter referred to as priority storage tank 11).
And the storage tank 12 on the right (hereinafter,
(It may be referred to as a non-priority storage tank 12). Thus, in the present embodiment,
Since the overflow mechanism is formed in a box shape instead of the conventional flexible pipe, the generation of noise due to the returned pachinko balls can be extremely reduced. Has a storage function of storing about 20 to 30,000 pieces), so that a space that has not been used conventionally can be effectively used as a storage space inside the pachinko island stand 1. In FIG. 1, the overflow box 2
2 is drawn on the front side of the doffing and conveying device 5, but this is to show the structure of the overflow box 22 in detail. Formed on the side.

On the inner side walls of the storage tanks 11 and 12, a plurality of storage level detection sensors S1 to S5 for detecting the amount of stored balls are provided. According to the experiments performed by the applicants, it has been found that the change in the storage of the pachinko balls in the storage tanks 11 and 12 is such that the change is stored from the upstream side of the storage tanks 11 and 12. For this reason, the storage level detection sensors S1 to S5 are arranged substantially linearly in a horizontal direction, and the storage level detection sensor S1 disposed upstream of the priority storage tank 11 detects the lower limit of the storage amount, while the storage level detection sensors S1 to S5 are non-priority. The storage level detection sensor S5 disposed downstream of the storage tank 12 detects the upper limit of the storage amount. Then, based on the detection signals of the detection sensors S1 to S5, a storage level indicator 24 attached to the outside of both ends of the pachinko island stand 1 notifies the amount of storage in the storage tanks 11, 12.

Here, the detailed structure of the storage tanks 11 and 12 will be described. The priority storage tank 11 and the non-priority storage tank 12 have slightly different structures, but the same reference numerals are given to components having the same function. The storage tanks 11 and 12 cause the balls received from the overflow box 22 to flow down on the upper gutter 21 and sequentially store the balls from the upstream side on the bottom surface inclined toward the ball-lifting device 5, and doff the stored balls. Introductory gutter 1 of feeder 5
Leading to 8. However, the balls stored in the priority storage tank 11 are placed on the bottom surface of the priority storage tank 11 because the introduction gutter 18 of the ball discharging device 5 is arranged in a direction facing the bottom surface of the non-priority storage tank 12. It is guided to the small lifting device 20 from the communicating lower connecting gutter 19, and is supplied to the non-priority storage tank 12 by the small lifting device 20.

In the priority storage tank 11, there is formed an out ball guiding internal gutter 13 for receiving a used ball from the pachinko machine 2 arranged substantially at the center as described above. Out balls flowing down the guiding inner gutter 13 and the out ball guiding gutter 10 are transferred to the connecting gutter 16 via the merging box 14 and the out ball guiding merging gutter 15,
It is sent to the non-priority storage tank 12 from the connecting gutter 16. As described above, the priority storage tank 11 sends the received pachinko balls to the non-priority storage tank 12 via the small-sized lifting device 20 or the communication gutter 16 instead of directly leading out the pachinko balls to the doffing and feeding device 5. That is, the pachinko island stand 1 of the present embodiment has a configuration in which the pachinko balls received in the storage tanks 11 and 12 are collectively guided from the storage tank 12 side to the ball-lifting device 5. This is the introduction gutter 1
8 is directed only toward one of the storage tanks 12 in order to smoothly flow the balls into the doffing and conveying device 5 so that the doffing and discharging device 5 can sufficiently exhibit its lifting capability.

Further, in the priority storage tank 11, the reason why the two upper and lower communication gutters connected to the non-priority storage tank 12 are provided is that the communication gutter 16 connected to the upper out ball guiding / merging gutter 15 is used. A relatively high position, specifically, a position higher than the bottom surface of the non-priority storage tank 12, in order to preferentially guide the dirty pachinko balls to the doffing and conveying device 5 without storing them in the priority storage tank 11. It is necessary to provide. Otherwise, the out balls that flow down the out ball induction merging gutter 15 cannot naturally flow down to the non-priority storage tank 12 side. On the other hand, if the bottom surface of the priority storage tank 11 is matched with the height position of the out ball merging gutter 15, the pachinko balls stored in the priority storage tank 11 naturally flow down to the non-priority storage tank 12 via the communication gutter 16. However, since the position of the bottom surface is increased, there is a disadvantage that the storage amount in the priority storage tank 11 is reduced accordingly. For this reason, the height position of the bottom surface of the priority storage tank 11 is lowered to increase the storage amount, and the lower communication gutter 19 communicating with the bottom surface is increased.
Is connected to the small lifting device 20 and is sent to the non-priority storage tank 12 by the small lifting device 20.

A storage ball guide gutter 17 is provided on one side of the bottom surface of the priority storage tank 11. The storage ball guide gutter 17 takes in the pachinko balls stored in the priority storage tank 11 and takes the balls stored in the upstream part or the middle part thereof and guides them to the downstream side. The function of uniformly guiding the pachinko balls stored in the priority storage tank 11 to the lower connecting gutter 19 so that the pachinko balls do not stay in one place is exhibited.
Similarly, a storage ball guiding gutter 17 is provided also on the bottom surface of the non-priority storage tank 12, and the pachinko balls stored in the non-priority storage tank 12 are uniformly guided to the introduction gutter 18. However, the upper part of the storage ball guiding gutter 17 provided on the non-priority storage tank 12 side has an out ball guiding merging gutter 15.
Are provided so as to overlap with each other, and the outlet of the out ball guiding / merging gutter 15 is closer to the introduction gutter 18 than the outlet of the storage ball guiding / merging gutter 17. Covers the upper part of the ball flowing out of the storage ball guiding gutter 17 and stops the ball of the storage ball guiding gutter 17, so that the out ball flowing down the out ball guiding merging gutter 15 is preferentially guided to the introduction gutter 18. It is supposed to be.

In this embodiment, the priority of pachinko balls guided to the introduction gutter 18 is as follows. First,
The types of pachinko balls guided to the introduction gutter 18 are the following four types. Pachinko balls stored on the bottom plate of the non-priority storage tank 12. A pachinko ball that flows down the out ball guide merging gutter 15 of the non-priority storage tank 12. Pachinko balls stored on the bottom surface of the priority storage tank 11 and sent to the non-priority storage tank 12 by the small lifting device 20. The pachinko balls sent down to the non-priority storage tank 12 by the connecting gutter 16 flowing down the out ball guide merging gutter 15 of the priority storage tank 11.

Of these, the pachinko balls which are introduced into the introduction gutter 18 most preferentially are the pachinko balls which are guided directly to the introduction gutter 18 through the non-priority storage tank 12.
The second is a pachinko ball that is guided from inside the priority storage tank 11 to the non-priority storage tank 12 through the communication gutter 16. The third is a pachinko ball that is stored in the priority storage tank 11 and then guided into the non-priority storage tank 12 via the small-sized lifting device 20. The fourth is a pachinko ball stored in the non-priority storage tank 12.

Further, the doffing and feeding device 5 in the present embodiment
Has a capacity of 15000 pieces / min as its lifting capacity, and the small-sized lifting apparatus 20 has a capacity of 10000 pieces / min. The following is a description of how the above balls are sorted under the premise that there is such a lifting ability. That is, the average number of pachinko machines 2 installed on the pachinko island stand 1 is four in total.
Since the number is around 0, the maximum number of balls is 4,000 / min, and the number of pachinko balls is 10,000 / min. Therefore, the number of pachinko balls is 1000 pieces / min. That is, in the pachinko island stand 1 of the present embodiment, approximately 4000 used balls (and pachinko balls) discharged from the plurality of pachinko machines 2 arranged in one minute are discharged with the highest priority,
Next, from the priority storage tank 11 to the non-priority storage tank 12,
Approximately 10,000 return balls (pachinko balls) transferred per minute are pumped out, and the remaining approximately 1,000 return balls and return balls (pachinko balls) stored in the non-priority storage tank 12 at the end. Is to be transported.

As described above, the outline of the pachinko island stand 1 according to the embodiment has been described.
Is formed, and the doffing and conveying device 5
Is stored. Therefore, a detailed structure of the doffing and feeding device 5 will be described below with reference to FIGS. 2 and 3.
FIG. 2 is a side view as viewed from one side of a central portion of the pachinko island stand 1 according to the embodiment, and FIG. 3 is a perspective view of the doffing and feeding device 5 as viewed from behind.

In the figure, the doffing and feeding device 5 includes a support table 30.
A rectangular tube-shaped lifting cylinder main body 31 is vertically erected on the upper part of
A leather transport belt that extends around the longitudinal outer periphery of the lifting cylinder main body 31 between a motor built-in pulley 32 supported at a lower portion and an upper roller (not shown) that is supported by an adjustment nut 53. 44 orbits around.
A plurality of rotating rollers (not shown) are rotatably supported inside the lifting cylinder main body 31 so as to be freely arranged side by side at an appropriate interval in the vertical direction.
Projecting outward from the rising side surface of the transfer belt 44 to guide and support the transport belt 44. Although not shown in detail, the motor built-in pulley 32 is configured as a cylindrical roller having a relatively large diameter, and when an electric current is supplied, the cylindrical outer periphery rotates to drive the transport belt 44 around. It is.

Below the pulley 32 with a built-in motor, an introduction start gutter 35 into which pachinko balls before lifting are introduced is fixed to the right side of FIG. 2, and the pachinko balls introduced to the left side of FIG. Inflow arc gutter 33 to be moved to the lower end of main body 31
Is fixed. Although not shown, grooves for aligning the introduced pachinko balls in a plurality of rows are formed inside the introduction start end gutter 35 and the inflow arc gutter 33. Further, the mounting structure of the above-mentioned introduction start end gutter 35 and the inflow arc gutter 33 has a mounting plate 35a, an end of which can be slightly moved.
33a, and the other end is connected to the support table 30a.
Is slidably supported by a support pin 34 which is erected at a position via a spring 34a. That is, the lower end of the introduction start end gutter 35 and the lower end of the inflow arc gutter 33 are inserted into the support pins 34 and fastened by the adjustment nuts 54 so as not to come off.
It is urged upward by a. Thus, the fine spacing between the conveyor belt 44 and the introduction start gutter 35 and the inflow arc gutter 33 can be adjusted by the degree of tightening of the adjusting nut 54, and by adjusting the gap, the smoothness of the pachinko balls can be improved. Movement can be made possible.

Also, tension roller mounting brackets 48 and 4 are attached to the lifting cylinder main body 31 above the motor built-in pulley 32.
A plurality of tension rollers 45, 46, 47 for applying tension to the attached conveyor belt 44 are rotatably supported on the tension roller mounting brackets 48, 49, 50. ing. Especially,
The spring 4 is attached to the intermediate tension roller mounting bracket 49.
9a is interposed, and a constant tension can always be applied to the transport belt 44 by the urging force. Here, the motor built-in pulley 32 and each tension roller 4
5, 46, and 47, the pulley 32 with a built-in motor is located inside the conveyor belt 44, and the lower tension roller 47 is located outside the conveyor belt 44 when the conveyor belt 44 is mounted. The intermediate tension roller 46 is located inside the conveyor belt 44, and the upper tension roller 45 is located outside the conveyor belt 44.

By the way, on the back side of the lifting cylinder main body 31,
A guide rail cover 37 is pivotally supported on one side and attached to be freely opened and closed. The guide rail cover 37 is provided with a cloth belt 40 for polishing balls to be transported facing the transport belt 44 over the entire length of the front surface thereof. The cloth belt 40 is opened when the cloth belt 40 is mounted on the doffing and conveying device 5, and the cloth belt 40 itself is wrapped around the surface of the guide rail cover 37 so as to face the conveyor belt 44. Further, when the cloth belt 40 is attached, the guide rail cover 37 is fixedly supported by the cover locking metal member 43 so as to face the lifting cylinder main body 31.

As described above, in a state where the guide rail cover 37 is attached so as to face the lifting cylinder main body 31 by the cover locking metal member 43, the pachinko balls introduced into the introduction start end gutter 35 are moved through the inflow arc gutter 33. Via the conveyor belt 4
4 and the cloth belt 40, while being polished and discharged, is fixed above the pumping cylinder main body 31 and is discharged from the discharge gutter 36 via the upper bent gutter 51 which is bent in the discharging direction. The cleaned pachinko balls are discharged to the upper tank 6. Further, the cloth belt 40 is made of a cloth having a relatively coarse texture in order to exert its ball polishing ability. Further, a plurality of rows of guide rail grooves (not shown) into which a part of the balls to be fed are dropped are formed on the inner surface of the guide rail cover 37 so that the pachinko balls are fed vertically in one row. I have.

On the other hand, on the back side of the guide rail cover 37, a storage device 41 for storing a roll-shaped cloth belt 40 before use, and a winding device 39 for winding the used cloth belt 40 into a roll shape. And the lower part of the cloth belt 40 facing the conveyor belt 44 is chucked to form a cloth belt 40.
A stopping device 42 for stopping the movement of the conveyor belt 44,
And an automatic winding mechanism for the ball polishing cloth belt 40, which is composed of a tensioning device 38 for pulling the upper portion of the cloth belt 40 which faces the cloth belt by the driving force of the motor. The structure and operation of this ball polishing cloth belt automatic winding mechanism will be described in detail below. Note that the storage device 41 is a box for merely placing and storing the rolled fabric belt 40 before use, and thus will not be described in detail below. It is installed on a floor lower than the 37 open / close positions. First, the structure and operation of the tension device 38 will be described with reference to FIGS. FIG. 4 is a perspective view of the tension device 38 in a state where the cloth belt 40 is pressed and clamped, FIG. 5 is a perspective view showing the internal structure of the tension device 38, and FIGS. It is a side view which shows the effect | action of.

In the drawing, a tensioning device 38 is provided at the upper portion of the back surface of the guide rail cover 37,
7 are collectively provided in a mounting box 60 for holding the side surface of the mounting member 7. That is, the mounting box 60 is formed in a U-shape whose front and upper surfaces are opened, and the mounting holding piece 61 formed by extending the side surface thereof is abutted and held on the side surface of the guide rail cover 37. The tension device 38 is slidably attached to the back surface of the guide rail cover 37 by penetrating and screwing a bolt 63 into a mounting long hole 62 formed above and below the 61.

Also, on the inside of the lower part of the mounting box 60,
A driving roller 64 is rotatably supported by the shaft.
The fourth drive shaft 65 protrudes outside one side of the mounting box 60, and a pulley 66 is fixed to the protruded drive shaft 65. A pulley 67 provided on the upper side is connected to the pulley 66 via a belt 68. The pulley 67 is fixed to a motor shaft 70 of a motor 69 mounted on the upper inside of the mounting box 60. It is.
Therefore, when the motor 69 is driven to rotate, the driving roller 64 is driven through the pulleys 66 and 67 and the belt 68.
Is driven to rotate.

On the other hand, a cover lid 71 which opens and closes around an upper support shaft 72 is provided at an open front portion of the mounting box 60.
Inside the cover lid 71, a pair of press-contact rollers 76, 77 which are in contact with the drive roller 64 in the closed state slightly above and below the drive roller 64 are mounted via a roller mounting member 75. A screw 77a is embedded in one of the pressure contact rollers 77, and a slip detection sensor 79 is provided on the roller mounting member 75 side correspondingly. Further, a locking handle 73 is rotatably attached to the lower front of the cover lid 71.
Of the cover lid 71 protrudes from the front surface of the cover lid 71, and a locking piece (not shown) is fixed thereto. The locking piece is a bar-shaped member extending vertically, and is formed into a member that is inserted in front of the lower end of the mounting box 60 by rotating the locking handle 73 with the cover lid 71 closed. The locking hole 74 is locked. When the cover lid 71 is locked by the locking handle 73, the drive roller 64 and the pressure rollers 76 and 77 are in contact with each other.

The tension device 38 configured as described above is
When the motor 69 rotates while the later-described stopping device 42 is in a non-stop state, the cloth belt 40 is pulled downward by the pressing force of the driving roller 64 and the pressing rollers 76 and 77 to move downward. At this time, by detecting the rotation of the screw 77a embedded in the pressure roller 77 by the slip detection sensor 79, the number of rotations of the pressure roller 77 can be known. When the rotation speed of the pressure roller 77 is equal to or lower than the predetermined rotation speed, the cloth belt 40 is not normally pulled due to slippage or the like, and the abnormal signal is output to the outside via the code 79a. An abnormality of the tension device 38 can be notified.

The tensioning device 38 is provided with a looseness detection sensor 78 on one side on the back side of the mounting box 60. The looseness detection sensor 78 is for keeping the tension of the cloth belt 40 constant by controlling the driving of the motor 69. The operation of the tension device 38 to keep the tension of the cloth belt 40 constant will be described with reference to FIGS.

In the figure, a tensioning device 38 is attached to the guide rail cover 37 so as to be slidable in the vertical direction. More specifically, the side surface of the guide rail cover 37 is sandwiched by the mounting and holding piece 61 of the pulling device 38, and the mounting is performed by screwing a bolt 63 into a long mounting hole 62 formed in the mounting and holding piece 61. ing. The long mounting hole 62 is formed to have a certain length in the vertical direction, and can slide by this length.
The detecting piece 78a of the looseness detecting sensor 78 is always in contact with the bolt 63. Then
As shown in FIG. 7, the tension device 38 is at the upper limit position in the initial state after the winding is completed, but the cloth belt 40 gradually loosens or expands as the driving time of the doffing device 5 elapses. Come. Then, the pulling device 38 pulling one end of the cloth belt 40 is also lowered by that amount. Further, as shown in FIG. 6, the tension device 38 gradually descends, and finally the detecting piece 7 of the looseness detecting sensor 78
When 8a reaches a position where it is not pressed by the bolt 63, the looseness detection sensor 78 is switched from OFF to ON, the motor 69 is started to be driven, and the winding of the cloth belt 40 by the driving roller 64 is started. Then, the tension device 38 starts to rise again. The winding of the cloth belt 40 by the drive roller 64 is performed until the looseness detection sensor 78 switches from ON to OFF, as shown in FIG. As described above, the tension device 38 can control the drive of the motor 69 by the looseness detection sensor 78 to constantly keep the tension of the cloth belt 40 constant.

Next, the structure and operation of the stopping device 42 will be described with reference to FIGS. 8 and 9
10 is a cross-sectional view showing the internal structure and operation of the stopping device 42, FIG. 10 is a perspective view of the stopping device 42, and FIGS. 11 and 12 are side views showing the operation of the stopping device 42.

As described above, the stopping device 42 is attached to the lower portion of the back surface of the guide rail cover 37. That is, the guide rail cover 37 is attached by holding the side surface of the guide rail cover 37 with mounting pieces 91 provided on both sides of the rear surface of the stopping device 42 and screwing bolts (not shown) from both sides.

A cloth belt clamping mechanism is provided inside the stopping device 42. A cloth belt insertion mechanism formed on the back side of the stopping device 42 from the cloth belt storage box 41 to be described later through the upper surface of the stopping device 42 is provided. The take-up of the cloth belt 40 can be stopped by automatically pinching or releasing the cloth belt 40 inserted downward from above into the portion 92. As shown in FIGS. 8 and 9, the cloth belt clamping mechanism includes a clamping table 80 formed inside the rear side of the mounting box 82, and a stopper table 85 slidably mounted in the front-rear direction opposite thereto. Further, a mechanism for sliding the stopper base 85 back and forth by an electric drive source is provided inside the mounting box 82.

First, a configuration for mounting the stopper base 85 so as to be slidable in the front-rear direction will be described. Support pins 83 are provided upright on both inner sides on the rear side of the mounting box 82. Is the spring 83a
Is interposed. A stopper support rod 84 having support pin insertion holes (not shown) at both ends thereof is screwed to the rear end of the stopper base 85 by screws 86. By inserting the support pins 83 erected on the mounting box 82 into the support pin insertion holes of the stopper support rod 84, the stopper base 85 is slidably mounted in the front-rear direction. At this time, the stopper base 85 is constantly urged outward by the spring 83a.

Next, a mechanism for sliding the stopper base 85 back and forth by an electric drive source will be described.
A motor 89 as an electric drive source is mounted on one side and outside of the mounting box 82, and an output shaft of the motor 89 is provided on a rotation shaft 87 rotatably supported behind a stopper base 85 via a gear 90. It is connected to one side end. That is, the rotating shaft 87 is rotated by the rotation of the motor 89. A pair of eccentric cams 88 are fixed to the rotating shaft 87 at predetermined intervals, and press the rear end of the stopper base 85. With this configuration, the stopper base 85 can be slid back and forth by the rotation operation of the motor 89. The electric drive source for moving the eccentric cam 88 is not limited to the motor but may be another drive source, for example, a solenoid.

As shown in FIG. 9, when the rear end of the stopper base 85 is pressed by the eccentric cam 88, the chucking rubber 81 adhered to the front surface of the stopper base 85.
The cloth belt 40 is stopped by the clamping force between the cloth belt 40 and the clamping table 80 so as not to move. When a rotation command (half-rotation command) is derived to the motor 89 from such a state, the rotating shaft 87 rotates as shown in FIG.
Since the eccentric cam 88 does not press the rear end of the stopper base 85, the stopper base 85 moves rearward by the urging force of the spring 83a interposed between the support pins 83, and moves between the clamping base 80 and the stopper base 85. In the non-stop state where the cloth belt 40 is not chucked due to the occurrence of a gap. When a predetermined time (a time slightly shorter than the rotation time of the motor 69 of the pulling device 38) elapses from the non-stop state, the motor 89 rotates in the reverse direction to rotate the rotating shaft 87. Also rotates in the reverse direction (reverse half rotation), and the eccentric cam 88 presses the back surface of the stopper base 85, so that the stopper base 85 moves forward and the cloth belt 40 is again stopped by chucking. Things. In this way, the stopping device 42 can automatically control the stop of the winding of the cloth belt 40 by pinching and releasing the cloth belt 40 based on the forward and reverse half-turn commands.

The stopping device 42 is a roll-shaped cloth belt 4 stored in a cloth belt storage box 41 as a storage device.
It is possible to detect that 0 has been used to the end and notify the outside. The configuration and operation for detecting that the cloth belt 40 has reached the end and reporting the detection to the outside will be described with reference to FIGS.
explain.

In the figure, contact piece supporting members 95a and 95b are provided upright on both sides of the front face of the mounting box 82, and one end of the contact piece supporting members 95a and 95b is always in contact with the fabric belt 40. A contact piece 93 is pivotally supported so as to freely swing. The cloth belt contact piece 93 includes swing pieces 93a and 93b that are swingably attached to the contact piece support members 95a and 95b, and a connecting shaft 9 that connects these pieces.
4a and 94b, the connecting shaft 94a is always in contact with the cloth belt 40, and the connecting shaft 94b has a role as a swing support shaft of the cloth belt contact piece 93. A position detection sensor 96 for detecting the contact of the connecting shaft 94a of the cloth belt contact piece 93 is attached inside the front central portion of the mounting box 82, and a detection piece 96a of the position detection sensor 96 projects outside. And can come into contact with the connecting shaft 94a. Then, the cloth belt 40 stored in the cloth belt storage box 41 is connected to the connecting shaft 94 a of the cloth belt contact piece 93.
As described above, it is inserted through the upper surface of the stopping device 42 into the cloth belt insertion portion 92 formed on the upper rear surface of the stopping device 42, and is interposed in the guide rail cover 37.

The operation of the stop device 42 thus configured will be described with reference to FIGS. 11 and 12. In a normal state, as shown in FIG.
Due to the tension of the cloth belt 40 interposed in the stopping device 42,
One end of the cloth belt contact piece 93 that comes into contact with the cloth belt 40 is pulled up, and the cloth belt contact piece 93 is held vertically, so that the position detection sensor 96 detects the contact of the connecting shaft 94a (first). position). However, when the roll-shaped cloth belt 40 stored in the cloth belt storage box 41 is used to the end and its end is released from the winding section of the cloth belt storage box 41, as shown in FIG. Since the tension of the cloth belt 40 interposed in the cloth belt 40 is loosened and one end of the cloth belt contact piece 93 in contact with the cloth belt 40 cannot be pulled up, the cloth belt contact piece 93 swings horizontally (second). Position of). Then, the position detection sensor 96 stops detecting the contact of the connecting shaft 94a, and a signal to that effect is output to the outside. Therefore, the stopping device 42 according to the present embodiment can detect that the roll-shaped cloth belt 40 has been used to the end, notify the outside, and prompt the replacement of the cloth belt 40.

Next, the structure and operation of the winding device 39 will be described with reference to FIGS. 13 is a perspective view of the winding device 39, FIGS. 14 and 15 are side views of the winding device 39, and FIG. 16 is a front view showing a state where the winding device 39 is pulled out to the near side. It is.

In the figure, the winding device 39 is collectively provided on a winding support 108 having a substantially trapezoidal side surface. That is, the take-up support 108 is composed of a pair of substantially trapezoidal side plates and a bottom plate that covers the lower surface of the side plate.
02 is rotatably supported by support shafts 105a and 105b. A fitting groove 109 is formed substantially in front of the center of the winding support base 108, and a winding shaft 110 for winding the used fabric belt 40 is loosely fitted in the fitting groove 109. Then, the used cloth belt 40 is attached to the winding shaft 110.
Is wound in a roll shape, the space into which the winding shaft 110 is inserted forms the cloth belt mounting portion 107. Further, a pressing lever frame 112 having a driving shaft 120 to which a pressing roller 111 is fixed at the end thereof is turned around a rotating shaft (not shown) which is fastened and fixed to a rear upper end of a take-up support 108 by a nut 113. It is pivotally supported. Since the holding lever frame 112 extends to the near side from the position where the fitting groove 109 is formed, the holding lever frame 1
The drive shaft 120 that is rotatably supported at the tip of the twelve 12 is positioned diagonally forward of the cloth belt mounting portion 107.
In order to wind up the cloth belt 40 efficiently, it is desirable that the outer periphery of the pressing roller 111 is formed of a material having a large frictional force such as rubber. In addition, cloth belt 4
Numeral 0 is wound around the winding shaft 110 through the upper side of the rotation shaft (not shown).

A pulley 118 is fixed to the outside of one end of the drive shaft 120 to which the pressing roller 111 is fixed, and the pulley 118 and the motor shaft 122 of the motor 121 are fixed.
A belt 119 is stretched between the pulley 117 and the pulley 117 that is fixed to the belt. The motor 121 has a holding lever frame 112.
Is provided near a rotation shaft (not shown) on one side. When the motor 121 is driven for a predetermined time or more, the motor 121 is controlled to detect an abnormality and notify the outside. When the motor 121 rotates, the rotation is transmitted to the drive shaft 120 via the pulley 117, the belt 119, and the pulley 118, whereby the pressing roller 111 is rotated.
Is pulled out by the pulling device 38.
Is wound up in a roll. A projection 115 is provided on both sides of the holding lever frame 112, and a projection 114 is also provided on the side plate of the take-up support 108. A holding roller 111 is provided between the projections 114 and 115.
Is always attached to the cloth belt attaching portion 107.
A spring 116 that urges in the direction of pressing is stretched.

The winding device 39 configured as described above is
It is slidably attached to the inner surface of the doffing and feeding device storage part 4 of the pachinko island stand 1 so that it can be pulled out in the front direction. More specifically, as shown in FIGS. 13 and 16, the mounting substrate 100
Are mounted, and rails 101a and 101b are provided on the upper and lower portions of the mounting substrate 100, respectively. Also, rails 103a and 103b having a shape to be fitted with the rails 101a and 101b are provided on the back surface of a slide frame 102 provided above and below the take-up support 108, and the slide frame 102 is mounted on the mounting board 100. It can be slid back and forth. The slide frame 102 rotatably supports the take-up support 108 by support shafts 105a and 105b attached substantially above and below the center. The upper support shaft 10
At the upper end of 5a, a fixing knob 104 for fixing the rotation of the take-up support 108 is provided. Further, a stopper 106 for preventing the slide frame 102 from sliding is attached to a lower portion of the lower rail 101b provided on the slide frame 102. The stopper 106 pivots the pivot piece 123 so that the contact piece 124
By tightening the bolt having the contact piece 124
Presses the mounting substrate 100 to inhibit the slide frame 102 from sliding.

Therefore, after the stopper 106 is loosened to make the slide frame 102 slidable, the take-up support 1
08 is slid to the front side, and the support shafts 105a, 105
5b is pulled out from the end of the rails 101a, 101b to a position where it protrudes from the end of the rail 101a, 101b, as shown in FIG.
8 is turned toward the front side, and the fixing knob 104 is fixed by rotating the fixing knob 104 to perform work such as replacement of the used cloth belt 40. After the operation, the fixing knob 104 is loosened, the winding support 108 is turned over, and then the slide is returned to the original position, and the stopper 106 is rotated and fixed. With this configuration, as in the past,
Winding device 39 to which a relatively large-diameter cloth belt roll is mounted.
Can be prevented from obstructing the guide rail cover 37 from being easily opened and closed, so that the workability when inspecting or cleaning the inside of the doffing and feeding device 5 may be reduced. Absent.

The cloth belt storage box 41 for storing the cloth belt 40 before use is mounted on the bottom surface of the doffing apparatus storage section 4, and its mounting position is higher than the open / close position of the guide rail cover 37. Guide rail cover 3
It does not interfere with the opening and closing of 7. In the present embodiment, the cloth belt storage box 41 is shown as being attached to the bottom surface of the doffing and feeding device storage unit 4, but it may be any position that does not hinder the opening and closing of the guide rail cover 37. It may be attached to the inner side surface of the doffing and feeding device storage unit 4.

The configuration and operation of the automatic polishing mechanism for the cloth polishing belt according to the embodiment have been described above. Next, the automatic winding control of the cloth belt 40 according to the present embodiment will be described with reference to FIG. Will be explained. FIG. 17 is a cloth belt 4 by the ball polishing cloth belt automatic winding mechanism according to the embodiment.
It is a flowchart which shows an example of 0 automatic winding control.

In the ball polishing cloth belt automatic winding mechanism according to the present embodiment, the automatic winding control of the cloth belt 40 is performed by an externally installed management computer. First, in step 10, the presence or absence of an automatic winding signal of the cloth belt 40 is determined. Normally, at the end of a business day in a game arcade or the like, the cloth belt 40 is in a contaminated state by the driving of the ball fryer 5, and the contaminated portion and the unused portion are separated. An automatic rewind signal is output from the management computer because it needs to be replaced. Then, in step 11, an automatic winding operation signal is output, and winding of the cloth belt 40 is started. That is, first, by driving the motor 89 of the stopping device 42, the cloth belt 4 by the holding table 80 and the stopper table 85 is moved.
The chucking state of 0 is released, and the cloth belt 40 is made movable. Next, in this state, the motor 69 of the pulling device 38 is driven to rotate the driving roller 64, and the cloth belt 40 is pulled downward by the pressing force of the pressing rollers 76 and 77 to move downward. Also, by driving the motor 121 of the winding device 39 at the same time as the driving of the motor 69 of the tension device 38, the winding shaft 110 is rotated to wind the cloth belt 40 pulled downward.

As described above, when the winding of the cloth belt 40 is started, it is determined in step 12 whether or not the position detection sensor 96 (displayed as a limit switch) provided in the stopping device 42 is ON. You. As described above, the position detection sensor 96 detects whether or not the cloth belt 40 of the cloth belt storage box 41 has been used up to the end.
Is turned on by detecting the contact of the cloth belt contact piece 93 held at the position (2), but when the end of the cloth belt 40 is released from the cloth belt storage box 41, the tension is loosened and the cloth belt Contact piece 93 swings horizontally (second position)
Therefore, the contact of the cloth belt contact piece 93 is not detected, and the cloth belt comes into an OFF state. When the position detection sensor 96 is in the ON state, a predetermined time (for example, 3 minutes) required to replace the contaminated portion and the unused portion of the cloth belt 40 elapses, or the pressing roller 7
The winding of the cloth belt 40 is continued until the number of rotations of 7 (indicated as the number of windings) reaches a predetermined number of rotations. afterwards,
If it is determined in step 13 that the predetermined time or the predetermined number of revolutions has been reached, in step 14, an automatic winding stop signal is output from the management computer, and the winding of the cloth belt 40 is stopped. If it is determined in step 12 that the position detection sensor 96 is not ON, then in step 18 the cloth belt 4 of the cloth belt
A one-roll end signal indicating that 0 has been used to the end is output, and winding of the cloth belt 40 is stopped (step 14).

After the winding of the cloth belt 40 has been stopped, the slip detecting sensor 79 provided in the tensioning device 38 detects the tension in the tensioning device 38 in step 15.
It is determined whether or not the number of rotations of the pressing roller 77 (shown as a feeding unit) has fallen below a specified number of rotations. When it is determined that the rotation speed of the pressing roller 77 is not lower than the specified rotation speed, it indicates that no abnormality such as slippage of the cloth belt 40 has occurred. Next, at step 16, the motor 69
It is determined whether or not the driving time has exceeded the predetermined time (3 minutes). If it is determined that the drive time of the motor 69 has not exceeded the predetermined time, it means that no abnormality such as a failure of the motor 69 has occurred. Next, step 17
In, it is determined whether the drive time of the motor 121 has exceeded the predetermined time. If it is determined that the drive time of the motor 121 has not exceeded the predetermined time, the motor 1
21 means that no abnormality such as a failure occurred.
If it is determined in step 15 that the rotation speed of the pressing roller 77 has fallen below the specified rotation speed,
If it is determined in step 6 that the drive time of the motor 69 has exceeded the predetermined time, in step 17 the motor 12
If it is determined that the first drive time has exceeded the predetermined time, it is determined that an abnormality has occurred in the winding operation of the cloth belt 40, and an automatic winding abnormality signal is output in step 19.

As described above, in the ball polishing cloth belt automatic winding mechanism according to the present embodiment, the winding operation of the cloth belt 40 can be automatically controlled by the management computer installed outside.

Although the configuration and operation of the ball polishing cloth belt automatic winding mechanism according to the embodiment have been described above, according to the present embodiment, the ball lifting device formed in the center of the pachinko island stand 1 is housed. Automatic take-up cloth belt for ball polishing used in a ball lifting device 5 which is installed in the section 4 and is used in a ball lifting device 5 which holds a conveyor belt 44 and a cloth belt 40 for ball polishing while polishing and holding pachinko balls. In the mechanism, the automatic cloth belt winding mechanism includes a storage device 41 for storing a roll-shaped cloth belt 40 before use, a winding apparatus 39 for winding the used cloth belt 40 into a roll, and the conveyance belt. A stopping device 42 for chucking a lower portion of the cloth belt 40 facing the transfer belt 44 to stop the movement of the cloth belt 40, and a pulling device 38 for pulling an upper portion of the cloth belt 40 facing the transport belt 44 by a driving force of a motor. Consists, the tensile device 38, the drive roller 6 that is rotated by the motor 69
4, pressing rollers 76 and 77 for pressing the cloth belt 40 together with the driving roller 64, and pressing rollers 76 and 77.
And a slip detection sensor 79 for detecting the number of rotations of the pressing roller 7 by the slip detection sensor 79.
When the number of rotations of the cloth belt 7 is smaller than a predetermined number of rotations during the automatic winding period of the cloth belt 40, an automatic winding abnormality signal is output. With this configuration, when an abnormality such as a slip occurs during the winding operation of the cloth belt 40 and the winding operation is not performed normally, the occurrence of the abnormality can be notified to the outside. .

The pulling device 38 is provided on one side of the doffing and conveying device 5 so as to be openable and closable, and has a guide rail cover 37 on which the cloth belt 40 circulates so as to face the transport belt 44. The tensioning device 38 is provided with a slack detection sensor 78 for detecting that the tensioning device 38 has slid to reach a lower position due to the extension of the cloth belt 40. By driving the motor 69 by the detection sensor 78 and winding the cloth belt 40 to constantly maintain the tension of the cloth belt 40, the tensioning device 38 can always keep the tension of the cloth belt 40 constant.

The first position and the tension when the cloth belt 40 inserted between the stopping device 42 and the storage device 41 abuts with a predetermined tension are applied to the stopping device 42. A cloth belt contact piece 93 capable of taking a second position when the cloth belt is loosened, and a position detection sensor 96 for detecting that the cloth belt contact piece 93 is at the first position,
By outputting a cloth belt replacement signal based on the detection output of the position detection sensor 96 being lost, it is detected that the roll-shaped cloth belt 40 has been used to the end and notified to the outside. Can be exchanged.

[0060]

As is apparent from the above description, according to the present invention, the conveyor belt and the cloth belt for polishing the ball are installed in the doffing and feeding device storage portion formed in the center of the pachinko island stand. In a ball polishing automatic belt take-up mechanism used in a ball lifting device that holds and lifts a pachinko ball while facing each other, the cloth belt automatic take-up mechanism includes a roll-shaped cloth before use. A storage device that stores the belt, a winding device that winds the used cloth belt in a roll shape, a stop device that chucks a lower portion of the cloth belt facing the transport belt and stops the movement of the cloth belt, A pulling device for pulling an upper portion of the cloth belt facing the transport belt by a driving force of a motor, wherein the pulling device includes a driving roller that is rotationally driven by the motor, and the cloth belt together with the driving roller. And a slip detection sensor for detecting the number of rotations of the pressure roller, and the number of rotations of the pressure roller is determined by the slip detection sensor to a predetermined specified number of rotations during an automatic winding period of the cloth belt. An automatic winding abnormality signal is output when the number is less than the predetermined number. With this configuration, when an abnormality such as a slip occurs during the winding operation of the cloth belt and the winding operation is not performed normally, the occurrence of the abnormality can be notified to the outside.

Further, the pulling device is provided on one side of the doffing device so as to be openable and closable, and the pulling device is vertically mounted on the back surface of a guide rail cover around which the cloth belt is wound so as to face the transport belt. Along with being slidably attached to the tension device, the tension device is provided with a slack detection sensor that detects that the tension device has slid to the lower position due to the elongation of the cloth belt, and drives the motor by the slack detection sensor. By taking up the cloth belt and keeping the tension of the cloth belt at all times, the tension device can keep the tension of the cloth belt constant at all times.

Further, the stopping device has a first position when the cloth belt, which is inserted between the stopping device and the storage device, comes in contact with a predetermined tension, and when the tension is loosened. And a position detection sensor for detecting that the cloth belt contact piece is at the first position. The detection output of the position detection sensor is lost. By outputting the cloth belt replacement signal based on the above, it is possible to detect that the roll-shaped cloth belt has been used to the end and notify the outside to prompt the replacement of the cloth belt.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an internal structure of a pachinko island stand 1;

FIG. 2 is a side view as viewed from one side of a central portion of the pachinko island stand 1;

FIG. 3 is a perspective view of the doffing and feeding device 5 as viewed from the rear.

FIG. 4 is a perspective view of the tension device 38 in a state where the cloth belt 40 is clamped and held.

FIG. 5 is a perspective view showing the internal structure of the tension device 38.

6 is a side view showing the operation of the tension device 38. FIG.

7 is a side view showing the operation of the tension device 38. FIG.

FIG. 8 is a sectional view showing the internal structure and operation of the stopping device 42.

FIG. 9 is a sectional view showing the internal structure and operation of the stopping device 42;

10 is a perspective view of the stopping device 42. FIG.

11 is a side view showing the operation of the stopping device 42. FIG.

12 is a side view showing the operation of the stopping device 42. FIG.

13 is a perspective view of the winding device 39. FIG.

14 is a side view of the winding device 39. FIG.

15 is a side view of the winding device 39. FIG.

FIG. 16 is a front view showing a state where the winding device 39 is pulled out to the near side.

FIG. 17 is a flowchart illustrating an example of automatic winding control of the cloth belt 40 by the ball polishing cloth belt automatic winding mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pachinko island stand 4 Storage section of doffing and feeding device 5 Doffing and feeding device 30 Support stand 31 Lifting cylinder main body 32 Pulley with built-in motor 37 Guide rail cover 38 Pulling device 39 Winding device 40 Cloth belt 41 Cloth belt storage box 42 Stop device 44 Conveyor belt 60 Mounting box 61 Mounting holding piece 64 Drive roller 66, 67 Pulley 68 Belt 71 Cover lid 73 Locking handle 76, 77 Pressure contact roller 78 Looseness detection sensor 79 Slip detection sensor 80 Holding table 82 Mounting box 85 Stopper table 88 Eccentricity Cam 91 Mounting piece 93 Cloth belt contact piece 96 Position detection sensor 100 Mounting board 101a, 101b Rail 102 Slide frame 103a, 103b Rail 104 Fixed knob 105 Support shaft 106 Stopper 108 Take-up support 111 Pressing roller 112 Pressing Lever frame 116 spring 117, 118 pulley 119 belt

Claims (3)

[Claims] 1. A doffing machine installed in a doffing and feeding device storage portion formed at the center of a pachinko island stand, and holding a transport belt and a ball polishing cloth belt to face each other while polishing and pachinko balls while polishing. An automatic cloth belt take-up mechanism for polishing balls used in a feeding device, wherein the automatic cloth belt take-up mechanism includes a storage device for storing a roll-shaped cloth belt before use, and a roll-shaped cloth belt that has been used. A take-up device, a stopping device that chucks a lower portion of the cloth belt facing the conveyance belt to stop the movement of the cloth belt, and an upper portion of the cloth belt facing the conveyance belt is driven by a driving force of a motor. A pulling device for pulling, wherein the pulling device includes a driving roller that is rotationally driven by the motor, a pressing roller that presses the cloth belt together with the driving roller, and a switch that detects the number of rotations of the pressing roller. An automatic winding abnormality signal is output when the rotational speed of the pressure contact roller is smaller than a predetermined specified rotational speed in the automatic winding period of the cloth belt by the slip detection sensor. An automatic take-up mechanism for a cloth belt for polishing balls. 2. The pulling device is provided on one side of the doffing device so as to be openable and closable, and has a vertical surface on a back surface of a guide rail cover around which the cloth belt is wound so as to face the transport belt. Along with being slidably attached to the tension device, the tension device is provided with a slack detection sensor that detects that the tension device has slid to the lower position due to the elongation of the cloth belt, and drives the motor by the slack detection sensor. 2. The mechanism for automatically winding a cloth belt for polishing a ball according to claim 1, wherein the cloth belt is wound up to keep the tension of the cloth belt constantly. 3. The stop device has a first position when the cloth belt that is inserted between the stop device and the storage device abuts with a predetermined tension, and when the tension is loosened. And a position detection sensor for detecting that the cloth belt contact piece is at the first position, wherein the detection output of the position detection sensor is lost. The cloth belt automatic winding mechanism for ball polishing according to claim 1 or 2, wherein the cloth belt exchange signal is output based on the following.