JPH1147424A - Automatic winding mechanism for cloth belt for polishing ball - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatic winding mechanism for a cloth belt for polishing balls in which move of the cloth belt can be securely stopped. SOLUTION: A stopping device 80 to stop move of a cloth belt 18 by chucking the cloth belt 18 is composed of a main roller 90 changeable between a rotation condition and a stopped condition by an electromagnetic clutch mechanism 96, and pressure contact rollers 98, 99 pivotally installed to press contact the cloth belt 18 with the main roller 90, and the cloth belt 18 is set in a meandering form in the condition where the cloth belt 18 is held by the main roller 90 and the pressure contact rollers 98, 99, thereby the cloth belt 18 can be securely held without moving.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic take-up mechanism for a cloth belt used in a ball lifting device for lifting and pinching pachinko balls while facing a conveyor belt and a cloth belt for polishing balls. It is.

[0002]

2. Description of the Related Art The present applicant has previously disclosed Japanese Patent Application No. 8-29959 as an automatic take-up mechanism for a cloth belt used in a doffing and feeding device.
No. 5 proposed the technology disclosed. In this prior art, the chucking mechanism of the stop device for stopping the movement of the cloth belt is provided for a cloth belt inserted between a planarly formed holding table and a stopper table mounted opposite thereto. The movement of the cloth belt is stopped by chucking the stopper base by sliding it in the front-rear direction.

[0003]

However, in the above prior art, since the holding table is formed in a plane, the holding force when the cloth belt is chucked by the stopper table is not always sufficient. Instead, the cloth belt sometimes moved without being able to maintain the chucking state. The present invention has been made in view of such circumstances, and an object of the present invention is to provide a cloth belt automatic winding mechanism that can surely stop the movement of the cloth belt.

[0004]

In order to achieve the above object, according to the first aspect of the present invention, as shown in FIGS. 1 and 11, a conveyor belt 11 and a cloth belt 18 for polishing a ball are used.
In the automatic cloth belt take-up mechanism used in the ball lifting device 1 that lifts and pinches the pachinko balls while facing each other, the cloth belt automatic take-up mechanism stores the cloth belt 18 before use. Storage device 17 and used cloth belt 18
, A pulling device 50 for pulling the cloth belt 18 facing the conveyor belt 11, and a stopping device for chucking the cloth belt 18 facing the conveyor belt 11 and stopping the movement of the cloth belt 18. 80, and
The stopping device 80 includes a main roller 90 which can be in a rotating state and a stopped state by an electromagnetic clutch mechanism 96 as a clutch mechanism operated by an electric signal;
And pressing rollers 98 and 99 which are axially mounted so as to press the cloth belt 18 therebetween.
The cloth belt 18 is meandering in a state where the cloth belt 18 is sandwiched between the cloth belt 18 and the pressing rollers 98 and 99. With this configuration, the cloth belt 18 is pinched in a meandering manner, so that the cloth belt 18 can be reliably pinched and not moved.

According to the second aspect of the present invention, as shown in FIGS. 9 and 10, of the main roller 90 or the pressing rollers 98, 99, the pressing rollers 98, 99 are formed such that the center diameter of the pressing roller 98, 99 is the end portion. By forming the drum into a drum shape larger than the diameter, the holding force of the cloth belt 18 is the strongest at the center portion, so that the cloth belt 18 does not shift left and right, and until it is wound up by the winding device 30 as a result. This has the advantage that the cloth belt 18 maintains a predetermined exact position.

According to the third aspect of the present invention, as shown in FIGS. 8 and 11, the cloth belt 18 is positioned in front of the stopping device 80 with respect to the main roller 90 and the pressing rollers 98 and 99. By providing the guide member 111 for correcting the deviation of the cloth belt 18 in the traveling direction so as not to enter obliquely, for example, the cloth belt 18
Even when the cloth belt 18 enters the stopping device 80 in a diagonal direction when the cloth belt 18 is stored at a skewed position in the inside, the cloth belt 18 is moved by the guide member 111 to the main roller 90 and the pressing rollers 98 and 99. To the winding device 30 as a result,
Has the advantage that the cloth belt 18 maintains a predetermined exact position until it is wound up.

Further, in the invention of claim 4, as shown in FIGS. 9 and 10, the stopping device 80 is provided with mounting bodies 81, 92 on which the electromagnetic clutch mechanism 96 and the main roller 90 are pivotally supported. An opening / closing cover body 82 which is provided to be freely openable and closable with respect to the mounting bodies 81 and 92 and on which the pressing rollers 98 and 99 are pivotally supported. After hanging the cloth belt 18 between the main roller 90 and the pressing rollers 98 and 99 by closing and locking the cover 82,
The cloth belt 18 can be passed through the stopping device 80 very easily.

Further, according to the invention of claim 5, FIG.
As shown in FIGS. 7 and 18, the pulling device 50 is provided on one side of the doffing device, and a guide rail cover around which the cloth belt 18 is wound so as to face the transport belt 11 on the surface thereof. Attached slidably to the back surface of the upper and lower parts 9, the tension device 50 is provided with a looseness detection sensor 59 for detecting that the tension device 50 has slid to reach a lower position due to the extension of the cloth belt 18, When the looseness detection sensor 59 detects the looseness of the cloth belt 18 in step 50, the motor 62 of the tensioning device 50 is driven in step 51 to eliminate the looseness, and in step 52, the looseness detection sensor 59 Belt 18
When it is determined that the predetermined time has elapsed in Steps 53 and 54 after the looseness of the tension sensor is no longer detected, the drive of the motor 62 of the tensioning device 50 is stopped in Step 55, so that the looseness detection sensor 59 It is possible to prevent the pulling device 50 from being frequently driven or stopped, to improve the durability of the driving mechanism of the pulling device 50, and to always keep the cloth belt 18 in a tensioned state. Can be.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. First, a schematic configuration of the doffing and feeding device 1 will be described with reference to FIG. FIG. 1 is a perspective view of the doffing apparatus 1 as viewed from the rear.

In the figure, a ball-lifting device 1 has a square-shaped lifting cylinder 3 vertically erected on a support base 2 formed in a square shape, and the outer periphery of the lifting cylinder 3 in the longitudinal direction. , A leather conveyor belt 11 wrapped around between a pulley 4 with a built-in motor supported at a lower portion and an upper roller (not shown) which is fastened and supported by an adjustment nut 15. A plurality of rotating rollers (not shown) are rotatably supported in the vertical direction at appropriate intervals inside the lifting cylinder 3, and a part of the rotating rollers is a rising side surface of the lifting cylinder 3. And guides and supports the conveyor belt 11. Although not shown in detail, the motor built-in pulley 4 is configured as a cylindrical roller having a relatively large diameter,
When current is supplied, the cylindrical roller rotates and drives the conveyor belt 11 to rotate.

Below the motor built-in pulley 4, an introduction gutter 6 to which a pachinko ball before lifting is introduced is fixed to the right side in the figure, and the introduced pachinko ball is moved to the lower end of the lifting cylinder 3 on the left side in the figure. The inflow arc gutter 5 to be moved is fixed. Although not shown, grooves for aligning the introduced pachinko balls in a plurality of rows are formed inside the introduction gutter 6 and the inflow arc gutter 5. Further, the mounting structure of the introduction gutter 6 and the inflow arc gutter 5 is fixed to the mounting plates 6a and 5a so that one end thereof can be slightly moved, and the other end is erected on the support base 2. It is slidably supported by the support pin 16 via a spring (not shown). That is, the lower end of the introduction gutter 6 and the lower end of the inflow arc gutter 5 are inserted into the support pins 16 and fastened by an adjustment nut (not shown) so as not to come off, but are always interposed on the support pins 16. It is biased upward by a spring. Thus, the fine spacing between the conveyor belt 11 and the introduction gutter 6 and the inflow arc gutter 5 can be adjusted by the degree of tightening of the adjusting nut, and by adjusting the spacing, the smooth movement of the pachinko balls can be achieved. Can be made possible.

A plurality of tension rollers 12, 13 and 14 for applying tension to the conveyor belt 11 are rotatably supported on the lifting cylinder 3 above the pulley 4 with a built-in motor. In particular, since the intermediate tension roller 13 is mounted via a spring (not shown), a constant tension can always be applied to the transport belt 11 by the urging force of the spring. Further, the pulley 4 with a built-in motor and the tension rollers 12, 13, 14
When the conveyor belt 11 is mounted, the pulley 4 with a built-in motor is located inside the conveyor belt 11 and the lower tension roller 14
1, the intermediate tension roller 13 is located inside the transport belt 11, and the upper tension roller 12 is located outside the transport belt 11.

By the way, a guide rail cover 9 is pivotally supported on one side on the back side of the lifting cylinder 3 and is attached to be freely openable and closable. The guide rail cover 9 is attached to the transport belt 1.
A cloth belt 18 for polishing a ball which is conveyed to face 1 is wrapped around the entire length of the front surface thereof. The cloth belt 18 is mainly opened when the cloth belt 18 is mounted on the doffing and conveying device 1, and the cloth belt 18 itself is wrapped around the surface of the guide rail cover 9 so as to face the conveyor belt 11. When the cloth belt 18 is mounted, the guide rail cover 9 is fixedly supported by the cover locking metal 10 with the guide rail cover 9 facing the lifting cylinder 3. In addition, the cover locking member 10 can adjust the distance between the guide rail cover 9 and the lifting cylinder 3, and by this adjustment, the transport belt 11 and the cloth belt 1 can be adjusted.
4, the pinching force of the pachinko balls can always be adjusted to the optimum strength.

As described above, the pachinko balls introduced into the introduction gutter 6 pass through the inflow arc gutter 5 in a state where the guide rail cover 9 is attached to the lifting cylinder 3 by the cover locking metal 10. And the conveyor belt 11 and the cloth belt 18
The pachinko balls that have been cleaned are discharged from the discharge gutter 8 via the upper bent gutter 7 that is fixed above the lifting cylinder 3 and bent in the discharge direction while being nipped and polished. Is done. Further, the cloth belt 18 is made of a cloth having a relatively coarse texture in order to exert its ball polishing ability. In addition, 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 9 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 9, the storage device 1 for storing the cloth belt 18 before use is provided.
7, a winding device 30 for winding the used fabric belt 18 into a roll, a tension device 50 for pulling an upper portion of the fabric belt 18 facing the conveyor belt 11, and a lower portion of the fabric belt 18 facing the conveyor belt 11. Chuck the cloth belt 1
And a stop device 80 for stopping the movement of the cloth belt 8, and an automatic winding mechanism for the cloth belt 18. The configuration and operation of the automatic cloth belt winding mechanism will be described in detail below. Since the storage device 17 is a box for merely placing and storing the rolled fabric belt 18 before use, the storage device 17 will not be described in detail below. 9 is installed on the floor lower than the open / close position.

First, the winding device 30 will be described with reference to FIGS. FIG. 2 shows the guide rail cover 9.
FIG. 3 is a perspective view showing a winding device 30 attached to the device. In FIG. 1, the winding device 30 is attached to the center of the back surface of the guide rail cover 9. This winding device 30
As shown in FIG. 2, are collectively provided on a take-up support 33 formed in a box shape including a pair of side plates and a bottom plate covering the lower surface of the side plates. Winding support 3
3 is a screw 3 screwed to the side of the guide rail cover 9
1, a mounting piece 32 formed at the rear end of the take-up support 33.
It is attached by locking the locking groove 32a. A fitting groove 33a is formed substantially in front of the center of the winding support base 33, and a winding shaft 34 for winding the used fabric belt 18 is loosely fitted in the fitting groove 33a. Since the used cloth belt 18 is wound into a roll on the winding shaft 34, the space where the winding shaft 34 is formed forms the cloth belt mounting portion 33b. Also, the winding support 33
A drive shaft 36 is loosely fitted to the upper end of the rear end of the rear end, and a pressing lever frame 37 for mounting the cloth belt 18 on the cloth belt mounting portion 33b by a pressing roller 35 fixed to the driving shaft 36 is turned. It is pivotally supported. Since the holding lever frame 37 is extended to the near side from the position where the fitting groove 33a is formed, the drive shaft 36 that is loosely fitted to the tip of the holding lever frame 37 is inclined with respect to the cloth belt mounting portion 33b. It will be located in front. The pressing roller 35
In order to wind up the cloth belt 18 efficiently, it is desirable that the outer peripheral portion is formed of a material having a large frictional force such as rubber.

A driven pulley 39 is fixed to the outside of one end of the drive shaft 36 to which the press roller 35 is fixed, and a drive pulley 38 is provided near the base of the press lever frame 37.
Is supported. Although not shown in detail, the driving pulley 38 is driven by a motor provided inside the pulley 38. When the motor is driven to rotate the driving pulley 38, the driving shaft 36 is rotated together with the driven pulley 39 by the belt 40 stretched between the driving pulley 38 and the driven pulley 39, and The press roller 35 fixed to the shaft 36 winds up the cloth belt 18 pulled out by the tension device 50 described later. The projection 4 is provided on the side surface of the take-up support 33.
1, a projection 42 is also provided on the side of the holding lever frame 37. Between the projections 41, 42, the holding belt 35 is provided with the fabric belt 18 which is always attached to the fabric belt attaching portion 33b. Spring 43 biasing in the pressing direction
Has been passed over. Thereby, the cloth belt attaching section 33
When the pressing roller 35 for pressing the cloth belt 18 of b rotates, the cloth belt 18 is wound in a roll shape by the cloth belt mounting portion 33b.

Next, the tension device 50 will be described with reference to FIGS.
This will be described with reference to FIGS. FIG. 3 is a perspective view showing the tension device 50 in a state where the cloth belt 18 is pressed and clamped.
FIG. 4 is a perspective view showing the internal structure of the tension device 50,
FIG. 5 shows the tension device 50 with the opening / closing cover 60 opened.
6 is a side view showing the operation of the looseness detection sensor 59 of the tensioning device 50, and FIG. 7 is a side view showing the operation of the looseness detection sensor 59 of the tensioning device 50. .

In FIG. 1, the pulling device 50 is mounted on the upper rear surface of the guide rail cover 9. As shown in FIG. 3, the pulling device 50 is provided collectively in a mounting box 58 having a U-shaped open front and upper and lower surfaces. The mounting box 58 is attached to a pair of bolts 57 screwed to the side surface of the guide rail cover 9.
Mounting pieces 56 formed above and below the rear end of the mounting box 58
It is mounted by locking the locking groove 56a. At this time, as shown in FIG. 6 and FIG.
Numeral 0 indicates a state in which it can slide up and down by the length of the locking groove 56a.

On the inside of the lower part of the mounting box 58,
A drive roller 63 made of a metal cylindrical member is rotatably supported by a shaft, and a drive shaft 67 of the drive roller 63 projects outside one side of the mounting box 58.
7, a metal driven pulley 66 is fixed. Also,
The driven pulley 66 is connected to a drive pulley 68 provided on the upper side via a belt 70, and the drive pulley 68 is fixed to a motor shaft 69 of the motor 62 mounted on the upper inside of the mounting box 58. Things.
Therefore, when the motor 62 is driven, a driving force is transmitted via the driving pulley 68, the belt 70, and the driven pulley 66, and the driving roller 63 is driven to rotate. The outer periphery of the driving roller 63 is subjected to a diamond cutting process to increase the frictional force with the cloth belt 18.

On the other hand, an opening / closing cover 6 that opens and closes around an upper support shaft 55 is provided on the front opening of the mounting box 58.
0 is provided, and inside the opening / closing cover 60,
In a closed state, a pair of pressure contact rollers 64 and 65 which contact the front and bottom of the drive roller 63 slightly forward and downward are formed by a roller mounting member 75.
Attached through. A screw 71 is embedded in one of the pressure contact rollers 65, and a slip detection sensor 72, which will be described later, is attached to the opening / closing cover 60 via a sensor support 73 in correspondence with the screw 71. When the cover 60 is closed, the locking pieces 74 provided on both sides of the lower surface of the cover 60 are attached to the fittings 61 (buckle-type fittings) attached to both sides of the lower surface of the mounting box 58.
, The closed state of the open / close cover 60 is maintained.

It is to be noted that an upper portion of the mounting box 58 is formed in an L-shaped cross section, and the bent portion thereof forms a tension device 50.
Belt pressing piece 5 for pressing the cloth belt 18 introduced into the
1 is rotatably attached by a hinge 52.
The center of the cloth belt pressing piece 51 and the upper center of the mounting box 58 are connected by a spring 53, and the cloth belt pressing piece 51 is always urged in the direction of pressing the cloth belt 18. I have. This is because when the foreign matter is attached to the cloth belt 18 or when the pachinko ball is dropped from above, the foreign matter or the pachinko ball is introduced into the tension device 50 as it is, the driving roller 63 and the pressing roller 64, 65, which may cause a failure of the tensioning device 50.
8 to remove foreign substances adhering to the cloth belt 18 or prevent pachinko balls from entering. In addition, projections 54 are provided on both sides of the upper portion of the mounting box 58 and opposite to the side where the cloth belt 18 is inserted, for retaining when the cloth belt pressing piece 51 is not used.

The tensioning device 50 configured as described above includes:
When the motor 62 rotates while the later-described stopping device 80 is in a non-stop state, the cloth belt 18 sandwiched between the driving roller 63 and the pressing rollers 64 and 65 in a meandering manner is driven by the rollers 63, 64 and 65. The cloth belt 18 is pulled downward and moved downward by the pressure contact force. At this time, by detecting the rotation of the screw 71 embedded in the pressing roller 65 with the slip detection sensor 72, the number of rotations of the pressing roller 65 can be known. This pressing roller 6
If the number of rotations is less than or equal to the predetermined value, the cloth belt 18 is not normally pulled due to slip or the like, and the abnormal signal is output to the outside, and the tension device 50 is pulled out.
Anomalies are reported.

The tensioning device 50 is provided with a looseness detection sensor 59 on one upper side of the back surface of the mounting box 58. The looseness detection sensor 59 is for keeping the tension of the cloth belt 18 constant by controlling the driving of the motor 62. Cloth belt 1 by this tensioning device 50
The operation of keeping the tension of No. 8 constant will be described with reference to FIGS.

As described above, the pulling device 50 is attached to the guide rail cover 9 so as to be slidable in the vertical direction. That is, the mounting box 5 of the tension device 50
The engaging groove 56a of the mounting piece 56 is engaged with the bolt 57 screwed to the side surface of the guide rail cover 9 so that the mounting piece 56 formed on the rear end of the guide rail 8 holds the side surface of the guide rail cover 9. Although the locking groove 56a is attached by stopping, the locking groove 56a is formed to have a certain length in the vertical direction, and can slide by this length. The looseness detection sensor 59 is always connected to the upper bolt 57.
The detecting piece 59a protruding so as to contact the microbelt pushes the protrusion 59b of the microswitch, thereby causing the cloth belt 18 to move.
To detect looseness of

As shown in FIG. 6, the tension device 50 is at the upper limit position in the initial state after the winding is completed, but the cloth belt 18 gradually moves as the driving time of the doffing and feeding device 1 elapses. It loosens and stretches. Then, the pulling device 50 pulling one end of the cloth belt 18.
Will also fall by that amount. Then, as shown in FIG. 7, when the tensioning device 50 gradually descends and reaches the lower limit position, the detecting piece 59a of the looseness detecting sensor 59
b, the looseness detection sensor 59 changes from OFF to O
The state is switched to N and the motor 62 is started to be driven, and the winding of the cloth belt 18 by the driving roller 63 is started. Then, the tension device 50 starts to rise again. As described above, the tensioning device 50 can control the drive of the motor 62 by the looseness detection sensor 59 to always keep the tension of the cloth belt 18 constant.

The driving of the motor 62 of the tension device 50 is continued for a predetermined time even after the looseness detection sensor 59 is switched from ON to OFF, and the tension device 50 reaches the upper limit position (the position in FIG. 6) again. And then stopped. this is,
When the driving of the motor 62 is stopped at the timing when the looseness detection sensor 59 is switched from ON to OFF as in the related art, even if the cloth belt 18 is slightly extended, the looseness detection sensor 59 is stopped.
Is repeatedly turned ON / OFF, and the motor 62 is frequently driven or stopped, so that the efficiency is low and the life of the motor 62 is adversely affected. Further, it is desirable that the above-described operation of the tension device 50 be performed even when the power is turned on at the start of business. this is,
At night, the cloth belt 18 depends on the weight and humidity of the tension device 50.
This is because it may be desirable to drive the motor 62 for a predetermined time (for example, one second) regardless of whether the looseness detection sensor 59 detects.

Next, the stopping device 80 will be described with reference to FIGS.
This will be described with reference to FIGS. FIG.
FIG. 9 is a perspective view showing the internal structure of the stopping device 80, FIG. 10 is a front view showing the internal structure of the stopping device 80, and FIG. FIG. 12 is a side sectional view showing the structure, and FIG.
13 is a side view showing the operation of the position detection sensor 107 of FIG.
FIG. 14 is a perspective view for explaining the operation when replacing the old and new cloth belts.

In FIG. 1, the stopping device 80 is attached to the lower portion of the back surface of the guide rail cover 9. As shown in FIGS. 8 and 9, the stopping device 80 includes a mounting body 8 on which the electromagnetic clutch mechanism 96 and the main roller 90 are pivotally supported.
1, 92, and press-contact rollers 98, 9 which are provided to be freely openable and closable about the support shaft 83 with respect to the mounting bodies 81, 92.
And an opening / closing cover body 82 on which the opening / closing cover member 9 is rotatably supported. After the cloth belt 18 is hung on the front side of the main roller 90 in a state where the opening / closing cover body 82 is opened, the opening / closing cover body 82 is closed and a locking fitting is provided. Fabric belt 1 by locking with 86
8 is sandwiched between the main roller 90 and the pressing rollers 98 and 99 in a meandering manner. The attachment bodies 81, 92
The locking pin 84 projects upward and downward on the pivot side of the opening and closing cover body 82, and the locking pin 84 is
When the open / close cover body 82 is opened with respect to the mounting main bodies 81 and 92, the open state can be maintained.

More specifically, the mounting main body is composed of a roller shaft supporting body 81 that horizontally supports the main roller 90 at substantially the center thereof, and a supporting body 92 that covers the electromagnetic clutch mechanism 96. I have. The roller shaft support body 81 is
In order to support the main roller 90 in the horizontal direction, the main roller 90 has supporting side plates 81a and 81b on both sides thereof. An electromagnetic clutch mechanism 96 is screwed to the back surface of one of the supporting side plates 81a. A support main body 92 formed in a U-shape so as to cover the mechanism 96 is fixedly fixed to a mounting piece projecting upward and downward from the support side plate 81a by screws 94. A mounting plate 93 provided with a pair of locking metal fittings 86 on the upper and lower sides of the other (opening side) supporting side plate 81b is provided with a mounting piece protruding upward and downward from the supporting side plate 81b. Is fixedly fixed with screws 95. A space is formed between the pivot side plate 81b and the mounting plate 93,
In this space, one end of the main roller 90 projects and is stored.

The support side plate 81 of the roller support body 81
A bearing 81 is fixed to the a and 81b at substantially the center thereof, and a main roller 90 is rotatably supported by the bearing 91. The other end of the main roller 90 penetrates the bearing 91 of the support side plate 81a and is connected to the electromagnetic clutch mechanism 96. This electromagnetic clutch mechanism 9
Reference numeral 6 indicates that the rotation of the main roller 90 is allowed when power is supplied, and the rotation of the main roller 90 is prohibited when power is not supplied. The main roller 90 is formed of a metal columnar material, and the outer peripheral surface thereof is subjected to processing such as diamond cutting so that when the cloth belt 18 is pressed, the frictional force therebetween increases so that the The movement of the belt 18 is reliably prevented.

Further, a pair of mounting pieces 88 are protrudingly provided on the back surface side of the roller shaft support main body 81. The pair of mounting pieces 88 are formed at substantially the same interval as the width of the guide rail cover 9. The mounting pieces 88 are inserted so as to sandwich the guide rail cover 9, and are formed substantially at the center of the mounting pieces 88. After attaching the mounting groove 89 to a bolt (not shown) screwed to the side surface of the guide rail cover 9,
The stop device 80 is fixed to the guide rail cover 9 by tightening the bolt. In addition, the upper side of the roller shaft support body 81 is bent inward, and a cloth belt insertion portion 113 into which the cloth belt 18 is inserted is formed in front thereof. 1
As shown in FIG. 1, the stop device 8 is formed to be extremely small, for example, a pachinko ball or a large foreign object falling from above.
0 so that the operating state of the stopping device 80 is smoothly performed over a long period of time.

On the other hand, the opening / closing cover body 82 is formed in a box shape having an open rear, and a roller mounting plate 97 for rotatably supporting a pair of pressure contact rollers 98, 99 in a horizontal direction is stopped on the inner surface thereof. Is being worn. This roller mounting plate 9
The pressing rollers 98 and 99 rotatably supported by the shaft 7 are made of rubber columnar material, and are formed in a drum shape having a central portion having a maximum diameter. Then, in a state where the opening / closing cover body 82 is closed with respect to the mounting main bodies 81 and 92, as shown in FIGS.
The pressing rollers 98, 99 are positioned obliquely above and below the main roller 90, and the interval between the main roller 90 and the pressing rollers 98, 99 is extremely smaller than the thickness (about 1 mm) of the cloth belt 18 (0.5 mm). Below).

The main roller 90 and the pressing roller 9
When the cloth belt 18 is clamped between the first and second belts 8 and 99, as shown in FIG.
The cloth belt 18 is sandwiched in a meandering shape as shown in FIG. Therefore, when the rotation of the main roller 90 is stopped by the electromagnetic clutch mechanism 96, the movement of the cloth belt 18 is reliably stopped. Further, since the pressing rollers 98 and 99 are formed in a drum shape having the central maximum diameter portion 100, the holding force of the cloth belt 18 is the strongest at the center portion, so that the cloth belt 18 does not shift left and right, As a result, there is an advantage that the cloth belt 18 maintains a predetermined accurate position until it is wound up by the winding device 30. Further, since the pressure contact rollers 98 and 99 are made of a soft material made of rubber, fine foreign matters adhering to the cloth belt 18 are directly transferred to the main roller 90 and the pressure contact rollers 98 and 99.
Does not interfere with the rotation due to the foreign matter being absorbed by the elastic force of the rubber of the pressing rollers 98 and 99.

In addition to the above-mentioned structure, the opening / closing cover body 82 is provided with a cloth belt contacting piece 101 on the back surface thereof, and a bent portion 1 on the upper surface of which both side ends of the cloth belt 18 are guided.
A guide member 111 having a lock member 12 is fixedly mounted, and a locking piece 87 that is engaged with the buckle-type locking metal member 86 and locks is protruded from an open side surface thereof. Among them, the cloth belt contact piece 101 has the following configuration and operation.

That is, as shown in FIG. 8, a rocking piece supporting member 102 is provided on both sides of the back surface of the opening / closing cover body 82, and one end of the rocking piece supporting member 102 always contacts the cloth belt 18. The cloth belt contact piece 101 is pivotally supported so as to freely swing. The cloth belt contact piece 101 includes a swinging piece 103 that is swingably attached to a swinging piece support member 102, and a connecting shaft 105 and a supporting shaft 104 that connect the swinging pieces 103 to each other. A cylindrical rotating cylinder 106 is fitted into the connecting shaft 105 and is always in contact with the cloth belt 18. The support shaft 104 has a role as a swing support shaft of the cloth belt contact piece 101. . An opening 110 is formed at the center of the back surface of the opening / closing cover body 82, and the detection piece 108 of the position detection sensor 107 faces the opening 110. The position detection sensor 107 detects the position of the cloth belt contact piece 101 by pressing the projection 109 of the micro switch when the detection piece 108 comes into contact with the swinging piece 103. Then, the cloth belt 18 stored in the storage device 17 contacts the rotating cylinder 106 of the cloth
The cloth belt insertion portion formed at the upper portion of the stopping device 80 is guided by the bent portion 112 of the guide member 111 on the upper surface of the opening and closing cover body 82 while keeping the vertical position 3 in contact with the back surface of the opening and closing cover body 82. After being inserted into 113 and pulled out,
The guide rail cover 9 is wound from the lower part to the upper part. Although the guide member 111 is provided on the upper surface of the opening / closing cover body 82, if it is in front of the cloth belt insertion portion 113,
It can be provided anywhere.

The operation of the stopping device 80 configured as described above will be described with reference to FIGS. First, in a normal state, as shown in FIG. 12, one end of the cloth belt contact piece 101 that comes into contact with the cloth belt 18 is pulled up by the tension of the cloth belt Since the contact piece 101 is held vertically, the contact of the rocking piece 103 is detected by the position detection sensor 107. However, the cloth belt 18 stored in the storage device 17 is used to the end, and the end thereof is stored in the storage device 1.
7, the tension of the cloth belt 18 wrapped around the stopping device 80 is relaxed, and the cloth belt contact piece 101 that comes into contact with the cloth belt 18 is released, as shown in FIG.
Cannot be pulled up, the cloth belt contact piece 101 swings in the inclined direction. Then, since the position detection sensor 107 stops detecting the contact of the swinging piece 103, a signal to that effect is led out. Therefore, the stopping device 80 according to the present embodiment is provided with the cloth belt 1 of the storage device 17.
Detects that 8 has been used to the end and informs outside,
The replacement of the cloth belt 18 can be prompted.

When the cloth belt 18 is inserted into the stopping device 80, the cloth belt 18 is introduced along the bent portion 112 of the guide member 111 for correcting the deviation of the cloth belt 18 in the traveling direction. When the belt 18 is stored in the storage device 17 at a biased position, the cloth belt 18
When the cloth belt 18 enters the main roller 90 and the press-contact rollers 98 and 99 obliquely, the cloth belt 18 does not enter the main roller 90 and the press-contact rollers 98 and 99 in an accurate state. And consequently, the winding device 30
This has the advantage that the cloth belt 18 maintains a predetermined exact position until it is wound up.

When the old cloth belt 18a is completely used and the above-mentioned position detection sensor 107 is turned on and the next new cloth belt 18b is connected, as shown in FIG. Height is the guide member 1
11, a connecting table 120 having a plate-shaped insertion piece 121 which can be inserted into the bent portion 112 at the same height as that of the upper end surface thereof and which is inserted into the bent portion 112 is displaced from the storage device 17,
In this state, the end of the old cloth belt 18a and the start of the new cloth belt 18b are connected on the insertion piece 121 with a double-sided tape, a gum tape, or an easily peelable adhesive. Pressure rollers 98, 9
9, the adhesive state is reinforced, and the new and old cloth belts 18a, 18b are continuously mounted on the cloth belt automatic winding mechanism. By preparing the dedicated connection base 120 in this way, the work of connecting the new and old cloth belts 18a, 18b to each other in an accurate state can be performed very easily, and the subsequent main roller The connection between the pressure roller 90 and the pressure contact rollers 98 and 99 can be strengthened by the pressure bonding action.

The structure and operation of the winding device 30, the tensioning device 50, and the stopping device 80 which constitute the cloth belt automatic winding mechanism according to the embodiment have been described above.
Cloth belt 1 by fabric belt automatic winding mechanism according to the embodiment
An example of the automatic winding control of No. 8 will be described with reference to FIGS. FIG. 15 is a flowchart showing a main routine of automatic winding control of the cloth belt 18 by the automatic cloth belt winding mechanism according to the embodiment, and FIG. 16 shows the contents of an automatic winding processing subroutine in the main routine. FIG. 17 is a flowchart showing the contents of the abnormality confirmation processing in the main routine.

First, the outline of the automatic winding control of the cloth belt 18 will be described with reference to FIG. In the automatic cloth belt winding mechanism according to the embodiment, the automatic winding control of the cloth belt 18 is performed by a management computer (not shown) installed outside. Normally, at the end of a business day in a game arcade or the like, the cloth belt 18 is in a contaminated state by driving the doffing and conveying device 1, and the contaminated portion is replaced with an unused portion. There is a need. In such a case, in step 10, an automatic winding signal is output from the management computer to a control board (not shown) of the doffing and feeding device 1. Then, in step 11, an automatic winding operation signal is sent from the control board of the doffing and feeding device 1 which has received the automatic winding signal to the winding device 30, the tensioning device 50 and the stopping device 80 constituting the cloth belt automatic winding mechanism. Is output. According to the automatic winding operation signal, the automatic winding process of the cloth belt 18 by the cloth belt automatic winding mechanism is started in step 12.
The details of the automatic winding process will be described later. Then
In step 13, an abnormality check process is performed on each part constituting the automatic cloth belt winding mechanism. The details of the abnormality confirmation processing will also be described later. Then, after the abnormality confirmation processing is performed, in step 14, an automatic winding completion signal is output from the control board of the doffing and feeding apparatus 1 to the management computer, and the cloth belt automatic winding mechanism automatically winds the cloth belt 18. Control ends.

Next, the contents of the automatic winding operation of the cloth belt 18 by the automatic cloth belt winding mechanism in step 12 will be described with reference to FIG. When the automatic winding process of the cloth belt 18 is started, in step 20, the stopping device 80
It is determined whether or not the position detection sensor 107 provided in the is turned on. As described above, the position detection sensor 107 detects whether or not the cloth belt 18 of the storage device 17 has been used up to the end, and the cloth is always held vertically by the tension of the cloth belt 18. Belt contact piece 1
01 has been detected and turned on, but when the end of the cloth belt 18 is released from the storage device 17,
Since the tension is loosened and the cloth belt contact piece 101 swings in an inclined manner, the contact of the cloth belt contact piece 101 is no longer detected and O
It becomes the FF state. Therefore, in step 20,
If it is determined that the position detection sensor 107 is in the OFF state, the cloth belt 18 of the storage device 17 needs to be replaced. Therefore, in step 21, a cloth belt replacement signal is output to the outside. In response to the cloth belt exchange signal, an indicator lamp (not shown) provided on the pachinko island stand is turned on, and a management computer (not shown) is provided.
In such a case, the clerk of the game arcade can be prompted to replace the cloth belt 18 of the storage device 17. Then, when the cloth belt 18 is replaced by a method as shown in FIG. 14 described above (step 22), it is determined again at step 20 whether or not the position detection sensor 107 is ON.

If it is determined in step 20 that the position detection sensor 107 is ON, then in step 23, a timer (not shown) for measuring the driving time of the tension device 50 starts counting. And the pressing roller 6 by the slip detection sensor 72 of the tensioning device 50
The counting of the number of rotations of 5 is started. The timer drives the tensioning device 50 until a predetermined time (for example, 3 minutes) required to replace the contaminated portion and the unused portion of the cloth belt 18 has elapsed. Further, as described above, the slip detection sensor 72 can detect the rotation speed of the screw 71 embedded in the pressure contact roller 65 so as to know the rotation speed of the pressure contact roller 65.
The tension device 50 can be driven until the number of rotations reaches a predetermined value. After the timer and the counting of the slip detection sensor 72 are started in this manner, the step 2 is started.
At 4, the opening process of the cloth belt 18 by the stopping device 80 is performed. That is, the electromagnetic clutch mechanism 9 of the stop device 80
By energizing 6, the main belt 90 is allowed to be rotatable so that the cloth belt 18 can be moved. In this state, in step 25, the motor 62 of the tensioning device 50 is driven to rotate the drive roller 63, and the cloth belt 18 is pulled downward by the pressing force with the pressing rollers 64, 65 and moved downward. The motor 62 of the tension device 50
By driving the motor of the winding device 30 at the same time as the drive, the winding shaft 34 is rotated to wind the cloth belt 18 pulled downward. In the present embodiment, the rotation speed of the pressing roller 35 of the winding device 30 is set to be faster than the rotation speed of the drive roller 63 of the tension device 50. This is to always increase the winding speed on the winding device 30 side so that the cloth belt 18 is not loosened between the winding device 30 and the tension device 50. Therefore, the pressing roller 35 is in a state of slipping little by little with respect to the cloth belt 18.

As described above, when the driving of the pulling device 50 is started in step 25, the cloth belt 18 is supplied from the storage device 17, so that step 26 is performed.
The position detection sensor 10 provided in the stopping device 80
It is determined whether or not 7 is ON. Step 26
If it is determined that the position detection sensor 107 is in the OFF state, it means that the cloth belt 18 to be newly supplied hardly remains.
The energization of the electromagnetic clutch mechanism 96 of the stopping device 80 is stopped, and the cloth belt 18 enters the chucking state.
At 8, the driving of the tensioning device 50 is stopped. Thereafter, the process proceeds to step 21 to output a cloth belt replacement signal to the outside to prompt replacement of the cloth belt 18. When the cloth belt 18 is replaced in step 22, the position detection sensor 107 is again activated in step 20. It is determined whether it is ON.

In step 26, the position detection sensor 1
If it is determined that 07 is in the ON state, it is determined in step 29 that the predetermined time has elapsed by the timer, or the number of revolutions of the pressure roller 65 has reached the predetermined value by the slip detection sensor 72. It is determined whether or not this is counted. Here, if none of the conditions is satisfied, it is determined again at step 26 whether or not the position detection sensor 107 is in the ON state. And
If any of the above conditions is satisfied, it is determined that the contaminated portion and the unused portion of the cloth belt 18 attached to the guide rail cover 9 have been replaced, and a stop device is determined in step 30. The energization of the electromagnetic clutch mechanism 96 at 80 is stopped, the cloth belt 18 enters a chucking state, and the movement of the cloth belt 18 is stopped. After that, in step 31, it is measured that a predetermined time has elapsed by a timer, and then in step 32, the tension device 50
Is stopped. As in the processing in steps 30 to 32, the driving of the tensioning device 50 is stopped after a predetermined time (for example, 0.5 to 1 second) elapses after the holding device 80 performs the nipping process of the cloth belt 18. The reason is that the stopping device 80 attached to the lower portion of the guide rail cover 9 is used.
With the lower end of the cloth belt 18 fixed, the tension belt 50 attached to the upper part of the guide rail cover 9 is positioned above the locking groove 56a.
This is because the upper end of the fabric belt 8 is pulled, and the cloth belt 18 is tensioned to the guide rail cover 9.

Next, the contents of the abnormality confirmation processing in step 13 will be described with reference to FIG. First, in the stopping device 80, the cloth belt 1
Although an appropriate time for completing the pinching process or the releasing process of No. 8 has elapsed, an abnormality may occur in which those processes are not completed. Therefore, in step 40, it is determined whether such an abnormality has occurred. If it is determined in step 40 that an abnormality has occurred in the stop device 80, an abnormal signal is output to a display lamp (not shown) or a management computer (not shown) provided in the pachinko island stand in step 43. Therefore, it is possible to urge the clerk of the game arcade to check and repair the stopping device 80.

If it is determined in step 40 that an abnormality has not occurred in the stopping device 80, it is determined in step 41 whether or not an abnormality has occurred in the pulling device 50. That is, the tensioning device 50 includes the driving roller 63 driven by the motor 62 and the pressing roller 6.
The cloth belt 18 is pulled by the pressure contact force with the cloth belts 4, 65. However, an abnormality may occur in which the cloth belt 18 is not normally pulled due to a slip or the like. Therefore, if it is determined in step 41 that the rotation speed of the pressure contact roller 65 detected by the slip detection sensor 72 does not exceed the predetermined value, in step 43, the display lamp provided on the pachinko island stand or the management computer is used. Since an abnormal signal is output to the game machine, it is possible to urge the store clerk at the game arcade to check and repair the tension device 50. If it is determined in step 41 that the number of rotations of the pressing roller 65 has exceeded a predetermined value, it is determined in step 42 whether the tension device 50 has stopped. That is, if the driving of the tension device 50 is not stopped after the automatic winding process of the cloth belt 18 is completed, an abnormal signal is output to the display lamp or the management computer provided on the pachinko island stand in step 43. A clerk at the game hall can be encouraged to inspect and repair the tension device 50.

As described above, the tension of the cloth belt 18 attached to the guide rail cover 9 is always kept constant by the pulling device 50. One example of control for this is as follows. This will be described with reference to FIGS. FIG. 18 is a flowchart showing a main routine of loosening prevention drive control of the tension device 50, and FIG. 19 is a flowchart showing a looseness correction processing subroutine of step 53 in the main routine.

As described above, the pulling device 50 is attached to the guide rail cover 9 so as to be slidable up and down by the length of the locking groove 56a. Further, the tension device 50 is provided with a looseness detection sensor 59, and by detecting the looseness of the cloth belt 18 and controlling the driving of the motor 62, the tension of the cloth belt 18 can be kept constant. When the cloth belt 18 gradually expands with the elapse of the driving time of the doffing and conveying device 1, as shown in FIG.
When the tension device 50 reaches the lower limit position, the looseness detection sensor 59 is turned on from OFF.
Switch to. However, repeating the ON / OFF operation a predetermined number of times (for example, three times) within a predetermined time period (for example, one hour) by the looseness detection sensor 59 is, for example,
The stopping device 80 or the pulling device 50 is firmly
Since it is conceivable that the motor 8 is not pinched and slips little by little, it is controlled in this embodiment to output an abnormal signal in consideration of such a situation.

Therefore, first, at step 50, the value of the abnormal processing number counter N is reset to "0", then, at step 51, a timer for measuring a predetermined time (for example, one hour) is started, and thereafter, at step 52, It is determined whether or not the looseness detection sensor 59 is ON. And
When it is determined that the looseness detection sensor 59 has been turned ON within the above-described predetermined time, a looseness correction processing subroutine is executed in step 53. This looseness correction subroutine is shown in FIG. 19, and will be described.

At step 60, the motor 6 of the tensioning device 50
At the same time, the timer for measuring a relatively short time (for example, 4 seconds) is started in step 61. This timer is activated when the looseness detection sensor 59 is turned ON from ON.
A sufficient time for switching to FF is set. Thus, when the motor 62 starts driving, the cloth belt 18 is wound up by the driving roller 63, and the tension device 50 starts to rise. If the tension device 50 continues to rise, the looseness detection sensor 59 is turned off, but the motor 62 of the tension device 50 is turned off.
Is driven until the predetermined time elapses even after the looseness detection sensor 59 is turned off. Therefore, step 6
0, the driving of the motor 62 is started.
It is determined whether or not the looseness detection sensor 59 has been turned off. At step 62, the looseness detection sensor 59 is turned off.
If it is determined that the time has become, the timer is started in step 63. Then, while the timer is operating, the motor 62 continues to be driven.
If it is determined in step 4 that the predetermined time set by the timer has elapsed, in step 65, the driving of the motor 62 is stopped, and the process returns to the main routine. Step 63 like this
The reason for performing the processing of steps 65 to 65 is that, as in the conventional case, each time the looseness detection sensor 59 switches from ON to OFF, the motor 62
If the driving of the motor 62 is stopped, the motor 62 is frequently driven or stopped, so that the efficiency is low and the life of the motor 62 is adversely affected.

On the other hand, if it is determined in step 62 that the looseness detection sensor 59 is not OFF, and if it is determined in step 66 that the timer started in step 61 has timed out, that is, it is sufficient time to eliminate the looseness. If it is determined that the slack is not resolved even after the elapse,
This looseness correction processing subroutine ends, and the process returns to the main routine. In addition, the fact that the slack is not eliminated even after a sufficient time has passed for eliminating the slack indicates that the pulling device 50 or the stopping device 80 has failed.

After returning to the main routine and executing the above-described looseness correction processing subroutine, "1" is added to the abnormal processing number counter N in step 54, and then, in step 55, the value of N is set to a predetermined number of times. It is determined whether it is larger than (two times). If it is smaller than the specified number, the process proceeds to step 56 to determine whether or not the timer set in step 51 has elapsed. If not, the process returns to step 52 and repeats steps 52 to 56.

If the execution of the slackness correction processing is not more than the specified number of times at the point in time when the timer set in step 51 has elapsed, YES is determined in step 56 and the main routine is terminated. The processing from step 50 is repeated again. On the other hand, if the execution of the slackness correction processing is three or more times, which is more than the specified number of times, before the timer set in step 51 elapses, YES is determined in step 55 and the tension device abnormality signal is output to the management computer It is led to a display lamp provided on the pachinko island stand to indicate that fact. If the execution of the slackness correction processing is three or more times, which is more than the specified number of times, before the timer set in step 51 elapses, as described above, the stopping device 80 or the pulling device 50 firmly holds the cloth belt 18. This is because it is conceivable that they are not pinched and slip slightly. In addition, the stopping device 80 or the pulling device 50
Is completely broken and the cloth belt 18 is not pinched, the abnormal processing number counter N becomes 3 or more in a very short time. Therefore, such a failure of the stop device 80 or the tension device 50 is also performed by the above-described control. You can easily find out.

While the structure and operation of the automatic cloth belt winding mechanism according to the embodiment have been described above, according to the present embodiment, as shown in FIGS.
1 and a cloth belt 18 for polishing balls, the cloth belt automatic winding mechanism used in the ball lifting device 1 used in the ball lifting device 1 that lifts and pinches pachinko balls while polishing pachinko balls. Storage device 17 for storing the cloth belt 18 in front
A winding device 30 that winds up the used cloth belt 18 in a roll shape; and a cloth belt 18 that faces the transport belt 11.
A pulling device 50 that pulls an upper portion of the cloth belt 18 and a stopping device 80 that chucks a lower portion of the cloth belt 18 facing the conveyor belt 11 to stop the movement of the cloth belt 18. The stopping device 80 is an electromagnetic clutch mechanism. A main roller 90 capable of being brought into a rotating state and a stopped state by a main roller 96;
Pressing rollers 98 and 99 which are axially mounted so as to be pressed against zero.
And the main roller 90 and the pressing rollers 98, 9
9, the cloth belt 18 is meandering in a state where the cloth belt 18 is sandwiched. With this configuration, the cloth belt 18 is pinched in a meandering manner, so that the cloth belt 18 can be reliably pinched and not moved.

As shown in FIGS. 9 and 10, of the main roller 90 or the pressing rollers 98, 99, the pressing rollers 98, 99 are formed in a drum shape in which the diameter at the center is larger than the diameter at the end. As a result, the holding force of the cloth belt 18 is the strongest in the central portion, so that the cloth belt 18 does not shift left and right, and as a result, the cloth belt 18 is fixed to a predetermined accurate position until it is wound by the winding device 30. It has the advantage of maintaining position.

As shown in FIGS. 8 and 11, the cloth belt 18 is positioned immediately in front of the stopping device 80 so that the cloth belt 18 does not enter the main roller 90 and the pressing rollers 98 and 99 obliquely. By providing the guide member 111 for correcting the deviation of the moving direction of the cloth 18, for example, when the cloth belt 18 is stored in a biased position in the storage device 17, , The cloth belt 18 is guided by the guide member 111 to the main roller 90 and the pressing rollers 98 and 99.
Because it does not enter diagonally, but enters in an accurate state,
As a result, the cloth belt 18 is wound until it is wound up by the winding device 30.
Has the advantage of maintaining a predetermined exact position.

As shown in FIGS. 9 and 10, the stopping device 80 includes mounting bodies 81 and 92 on which the electromagnetic clutch mechanism 96 and the main roller 90 are pivotally supported. An opening / closing cover body 82 which is provided so as to be openable and closable with respect to each other, and on which the pressing rollers 98 and 99 are supported;
After the cloth belt 18 is hung on the front side of the main roller 90 with the opening and closing cover body 82 opened, the cloth belt 18 is closed and locked by closing the opening and closing cover body 82 so that the main belt 90 is closed. And pressing rollers 98, 9
9 and the stopping device 80, the cloth belt 1
8 can be inserted very easily.

Further, as shown in FIGS. 1, 7 and 18, the pulling device 50 is provided on one side of the doffing device so as to be openable and closable so as to face the transport belt 11 on its surface. The cloth belt 18 is slidably mounted on the back surface of the guide rail cover 9 around which the cloth belt 18 is slid up and down, and the tension device 50 slides on the tension device 50 due to the extension of the fabric belt 18 to reach a lower position. Is provided, and when the looseness detection sensor 59 detects the looseness of the cloth belt 18 in step 50, the motor 62 of the tensioning device 50 is driven in step 51 to eliminate the looseness and After the looseness detection sensor 59 stops detecting the looseness of the cloth belt 18 in step 52, when it is determined that the predetermined time has elapsed in steps 53 and 54, By stopping the drive of the motor 62 of the pulling device 50 with the tap 55, the pulling device 50 is prevented from being frequently driven or stopped by the looseness detection sensor 59, and the pulling device 50 is stopped. The durability of the drive mechanism can be improved, and the cloth belt 18 can always be kept in a tensioned state.

In the above-described embodiment, the electromagnetic clutch mechanism 96 using an electromagnet is shown as the clutch mechanism provided in the stopping device 80. However, a hydraulic clutch or a pneumatic clutch operated by an electric signal may be used.
Further, among the rollers of the stopping device 80, the pressing rollers 98,
99 is shown in the form of a drum.
May be formed in a drum shape. In addition, the tension device 50
And the stopping device 80 are mounted upside down,
May be turned in the opposite direction. Further, the storage device 17 and the winding device 30 for storing the cloth belt 18 are not necessarily wound in a roll shape, but may have a structure of storing or winding in a 99-fold shape, for example.

[0061]

As is apparent from the above description, in the first aspect of the present invention, the ball-lifting in which the transport belt and the ball-polishing cloth belt are opposed to each other to lift and pinch the pachinko balls while polishing them. In the cloth belt automatic winding mechanism used in the device, the cloth belt automatic winding mechanism includes a storage device for storing the cloth belt before use, a winding device for winding a used cloth belt, and the conveyance device. A pulling device for pulling the cloth belt facing the belt; and a stopping device for stopping the movement of the cloth belt by chucking the cloth belt facing the conveyor belt, wherein the stopping device is a clutch operated by an electric signal. A main roller capable of being brought into a rotating state and a stopped state by a mechanism, and a pressing roller axially mounted to press the cloth belt between the main roller, and the main roller and the pressing roller The so fabric belt in a state in which the cloth belt is sandwiched has a serpentine, it is possible not to move reliably sandwich the fabric belt by.

According to the second aspect of the present invention, one of the main roller and the pressing roller is formed in a drum shape having a center diameter larger than an end diameter, thereby holding the cloth belt. Since the force is the strongest in the central part, the cloth belt has the advantage that the cloth belt does not shift from side to side and consequently the cloth belt keeps a predetermined and accurate position until it is wound up by the winding device.

According to the third aspect of the present invention, a deviation in the traveling direction of the cloth belt is corrected so that the cloth belt does not enter the main roller and the pressing roller obliquely at a position in front of the stopping device 80. By providing a guide member that moves, for example, even when the cloth belt enters the oblique direction with respect to the stop device when the cloth belt is stored at an uneven position in the storage device, Since the belt does not enter the main roller and the pressing roller obliquely but enters the main roller and the pressing roller in an accurate state, it has an advantage that the cloth belt maintains a predetermined accurate position until the belt is wound up by the winding device as a result. .

Further, in the invention according to claim 4, the stopping device is provided with a mounting body on which the electromagnetic clutch mechanism and the main roller are pivotally supported, and the pressing roller is provided so as to be openable and closable with respect to the mounting body. The cloth belt is formed by hanging the cloth belt on the front side of the main roller in a state where the cover body is opened, and then closing and locking the cover body. Since the belt is sandwiched between the main roller and the pressing roller, the cloth belt can be passed through the stopping device very easily.

Further, in the invention according to claim 5, the pulling device is provided on one side of the doffing device, and the guide rail cover on which the cloth belt circulates so as to face the transport belt. The tension device is provided with a slack detection sensor for detecting that the tension device has slid to the lower position due to the elongation of the cloth belt, and the slack detection sensor is attached to the back surface of the tension device. When detecting the slack of the cloth belt, the motor of the tension device is driven to eliminate the slack, and when it is determined that a predetermined time has elapsed after the slack detection sensor does not detect the slack of the cloth belt, By stopping the driving of the motor of the tensioning device, it is possible to prevent the tensioning device from being frequently driven or stopped by the looseness detection sensor. , It is possible to improve the durability of the drive mechanism of the tensioning device, it can always be held in a state of being tensioned cloth belt.

[Brief description of the drawings]

FIG. 1 is a perspective view of a doffing apparatus as viewed from the rear.

FIG. 2 is a perspective view showing a winding device attached to a guide rail cover.

FIG. 3 is a perspective view showing the tension device in a state where the cloth belt is pressed and clamped.

FIG. 4 is a perspective view showing the internal structure of the tension device.

FIG. 5 is a perspective view showing the tension device in a state where an opening / closing cover is opened.

FIG. 6 is a side view showing an operation of a looseness detection sensor of the tension device.

FIG. 7 is a side view showing an operation of a looseness detection sensor of the tension device.

FIG. 8 is a perspective view showing a stopping device.

FIG. 9 is a perspective view showing the internal structure of the stop device.

FIG. 10 is a front view showing the internal structure of the stop device.

FIG. 11 is a side sectional view showing the internal structure of the stopping device.

FIG. 12 is a side view showing the operation of the position detection sensor of the stop device.

FIG. 13 is a side view showing the operation of the position detection sensor of the stop device.

FIG. 14 is a perspective view for explaining an operation for replacing a new and old cloth belt.

FIG. 15 is a flowchart showing a main routine of automatic cloth belt winding control by the automatic cloth belt winding mechanism according to the embodiment;

FIG. 16 is a flowchart showing an automatic winding processing subroutine in a main routine.

FIG. 17 is a flowchart showing the contents of the abnormality confirmation processing in the main routine.

FIG. 18 is a flowchart showing a main routine of drive control for preventing the tension device from being loosened.

FIG. 19 is a flowchart showing a looseness correction processing subroutine in a main routine.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 ball lifting device 2 support base 3 lifting cylinder 4 pulley with built-in motor 9 guide rail cover 11 transport belt 17 storage device 18 fabric belt 30 take-up device 35 press roller 37 press lever frame 50 tension device 59 looseness detection sensor 60 open / close cover 62 Motor 63 Drive roller 64 Pressure roller 65 Pressure roller 72 Slip detection sensor 80 Stopper 81 Roller shaft supporting body (mounting main body) 82 Opening / closing cover body 90 Main roller 92 Supporting body (mounting main body) 96 Electromagnetic clutch mechanism 98 Pressure contact roller 99 Pressure contact Roller 100 Central maximum diameter portion 101 Cloth belt contact piece 107 Position detection sensor 111 Guide member 112 Bend portion 113 Cloth belt insertion portion 120 Connection stand

Claims (5)

[Claims] 1. A cloth belt automatic winding mechanism used in a ball lifting device for lifting and pinching a pachinko ball while polishing a pachinko ball by facing a conveyor belt and a ball polishing cloth belt. The mechanism includes a storage device that stores the cloth belt before use, a winding device that winds up the used cloth belt, a tension device that pulls the cloth belt that faces the conveyance belt, and a cloth belt that faces the conveyance belt. A stopping device that stops the movement of the cloth belt by chucking the main roller, wherein the stopping device can take a rotating state and a stopped state by a clutch mechanism operated by an electric signal, and
A pressure roller that is axially mounted so as to press the cloth belt between the main roller and the cloth belt in a meandering state while the cloth belt is sandwiched between the main roller and the pressure roller. An automatic take-up mechanism for a cloth belt for polishing balls. 2. The drum according to claim 1, wherein at least one of the main roller and the pressing roller is formed in a drum shape having a center diameter larger than an end diameter.
The automatic take-up mechanism for the cloth polishing belt described in the above. 3. A guide member is provided at a position in front of the stopping device for correcting a deviation in the traveling direction of the cloth belt so that the cloth belt does not enter the main roller and the pressing roller obliquely. The automatic belt-winding mechanism for a ball polishing cloth according to claim 1 or 2. 4. The stopping device comprises: a mounting body on which the electromagnetic clutch mechanism and the main roller are pivotally supported; and an opening / closing cover body which is provided to be freely openable and closable with respect to the mounting body and on which the pressure roller is pivotally supported. After hanging the cloth belt in front of the main roller in a state where the opening and closing cover body is opened, the cloth belt is closed and locked by closing the opening and closing cover body, thereby connecting the cloth belt with the main roller and the pressing roller. 4. An automatic take-up mechanism for a ball polishing cloth belt according to any one of claims 1 to 3, characterized in that it is sandwiched between the belts. 5. The pulling device can be vertically slid on a back surface of a guide rail cover provided on one side of the doffing and feeding device and around which the cloth belt circulates so as to face the conveyor belt. In addition to the above, the tension device is provided with a slack detection sensor that detects that the tension device slides to reach a lower position due to the elongation of the cloth belt, and the slack detection sensor detects the slack of the cloth belt. In this case, the tension device is driven to eliminate the slack, and the driving of the tension device is stopped after a lapse of a predetermined time after the slack detection sensor stops detecting the slack of the cloth belt. An automatic take-up mechanism for a ball polishing cloth belt according to any one of claims 1 to 4.