JP2000308752A - Ball polishing/lifting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ball polishing/lifting device for making pachinko balls smoothly flow between the outer surface of a transporting belt and the inner surface of an upper curved gutter to be discharged from the upper curved gutter. SOLUTION: In this ball polishing/lifting device for polishing/lifting pachinko balls, the gap between the inner surface 42a of an upper curved gutter 40 and the outer surface of a transporting belt 6 is larger than the diameter of a pachinko ball at least at the entrance of the upper curved gutter 40. Therefore, a pachinko ball released from the upper end of a guide rail cover will not strike against the lower end of the upper curved gutter 40 at the entrance of the upper curved gutter 40, and the pachinko ball will smoothly flow between the outer surface of the transporting belt 6 and the inner surface 42a of the upper curved gutter 40 to be discharged from the upper curved gutter 40.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an upper roller and a lower roller which are rotatably supported up and down on a lifting cylinder main body.
A transport belt that is stretched between the rollers and circulated around the lifting cylinder main body, and a guide that is mounted opposite to the outer peripheral surface on one surface side on which the transport belt rises, and that pinches a pachinko ball between the transport belt and the transport belt. A ball for polishing and pachinko pachinko balls comprising a rail cover, and an upper bent gutter mounted to face the conveyor belt stretched over the upper roller and guiding the pachinko balls released from the guide rail cover. The present invention relates to a polishing and conveying device.

[0002]

2. Description of the Related Art Conventionally, in a ball polishing / lifting apparatus, a pachinko ball transported to an upper roller by a transport belt is, as shown in JP-A-8-299568, an outer periphery of the transport belt stretched over the upper roller. After having circulated around the outer peripheral surface of the upper roller while being sandwiched between the surface and the inner peripheral surface of the upper bent gutter, it was discharged to a discharge gutter orthogonal to the transport belt.

[0003]

However, as described above, if the pachinko ball is sandwiched between the outer peripheral surface of the conveyor belt stretched over the upper roller and the inner peripheral surface of the upper bent gutter, the upper sling will be formed. It is necessary to maintain the pinching force of the pachinko ball between the outer peripheral surface of the conveyor belt stretched over the rollers and the inner peripheral surface of the upper bent gutter at an appropriate value, and work must be performed to adjust the pinching force for this purpose. It had to be complicated. In addition, if this adjustment operation is mistaken, the inside of the upper bent gutter may be worn. More specifically, if the lower end of the upper bent gutter projects slightly inward from the upper end of the guide rail cover at the connection between the upper end of the guide rail cover and the upper bent gutter, that is, at the entrance of the upper bent gutter, When the pachinko ball hits the lower end of the upper bent gutter, the lower end of the upper bent gutter wears out in a short time, causing a problem that the pachinko ball does not flow smoothly in the upper bent gutter. The present invention has been made in view of the above circumstances, and its purpose is to allow a pachinko ball to smoothly flow between the outer peripheral surface of the conveyor belt and the inner peripheral surface of the upper bent gutter and be discharged from the upper bent gutter. To provide a ball polishing apparatus.

[0004]

In order to achieve the above object, according to the first aspect of the present invention, there is provided an upper roller and a lower roller which are rotatably supported up and down on a lifting cylinder main body,
A transport belt that is stretched between the rollers and circulated around the lifting cylinder main body, and a guide that is mounted opposite to the outer peripheral surface on one surface side on which the transport belt rises, and that pinches a pachinko ball between the transport belt and the transport belt. A ball for polishing and pachinko pachinko balls comprising a rail cover, and an upper bent gutter mounted to face the conveyor belt stretched over the upper roller and guiding the pachinko balls released from the guide rail cover. In the polishing and lifting device, a gap between an inner peripheral surface of the upper bent gutter and an outer peripheral surface of the conveyor belt is formed at least at an entrance portion of the upper bent gutter larger than the diameter of the pachinko ball. is there. With this configuration, the pachinko ball discharged from the upper end of the guide rail cover does not collide with the upper bent gutter at the entrance of the upper bent gutter, and the pachinko ball is not formed between the outer peripheral surface of the transport belt and the upper bent gutter. It flows smoothly between the peripheral surface and is discharged from the upper bent gutter.

[0005] In the invention of claim 2, the gap between the inner peripheral surface of the upper bent gutter and the outer peripheral surface of the conveyor belt is larger than the diameter of the pachinko ball from the entrance to the exit of the upper curved gutter. Due to the formation, the pachinko balls released from the upper end of the guide rail cover can be moved by inertia between the inner peripheral surface of the upper curved gutter and the outer peripheral surface of the conveyor belt and can be discharged from the upper curved gutter,
There is no need to finely adjust the pinching force of the pachinko ball between the inner peripheral surface of the upper bent gutter and the outer peripheral surface of the conveyor belt.

According to the third aspect of the present invention, an interval adjusting mechanism for adjusting the interval of the gap between the inner peripheral surface of the upper bent gutter and the outer peripheral surface of the conveyor belt is provided, so that it is extended over the upper roller. The gap between the outer peripheral surface of the transport belt and the inner peripheral surface of the upper bent gutter can be set arbitrarily within the adjustment range, so that the impact force when the pachinko ball conveyed by the conveyor belt collides with the upper bent gutter Can be adjusted, and breakage of the upper bent gutter can be suppressed.

Further, in the invention according to claim 4, the distance adjusting mechanism is configured such that the upper roller is supported by an upper roller variable mechanism slidable up and down with respect to the lifting cylinder main body. Since the gap between the outer peripheral surface of the conveyor belt and the inner peripheral surface of the upper bent gutter can be adjusted without changing the height of the upper bent gutter, without changing the height of the entire ball polishing / lifting device. It is possible to adjust the impact force when the transported pachinko ball collides with the upper bent gutter,
Damage of the upper bent gutter can be suppressed.

According to the fifth aspect of the present invention, since the shock absorbing member is formed on the inner peripheral surface of the upper bent gutter, noise generated when the pachinko balls conveyed by the conveyor belt collide with the upper bent gutter is reduced. Can be reduced.

Further, according to the invention of claim 6, since a gap is formed between the shock absorbing member and the upper bent gutter, the shock absorbing member bends and vibrates within the range of the gap. As a result, the impact due to the collision of the pachinko ball can be absorbed, and the impact absorbed by the impact absorbing member propagates while attenuating in the order of the impact absorbing member and the upper bent gutter, so that only a small impact propagates to the upper bent gutter. Noise is hardly generated.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. First, the overall configuration of a ball polishing and frying apparatus that constitutes a main part of the present embodiment will be described with reference to FIGS. FIG. 1 is a perspective view of the ball polishing / lifting device 1 as viewed from the front, and FIG. 2 is a cross-sectional view taken along line AA of FIG.

Referring to FIG. 1, a ball polishing / lifting apparatus 1 has a lifting cylinder main body 3 formed of the same material as that of the supporting table 2 on an upper portion of a supporting table 2 formed of a thick steel plate. A transport belt 6 made of leather spanned between a lower roller 4 located at a lower portion of the transporting cylinder main body 3 and an upper roller 5 located at an upper portion thereof (see FIG. 3) moves around the transporting cylinder main body 3. It is to go around. Between the lower roller 4 and the upper roller 5, an intermediate roller 18 for guiding the transport belt 6 is provided at a plurality of positions inside the lifting cylinder main body 3 by being supported by a roller shaft 19. Reference numeral 18 functions to assist the circulation of the conveyor belt 6. The upper roller 5 is moved up and down by an upper roller variable mechanism 54 described later.

The lifting tube main body 3 has a sectional shape shown in FIG.
As shown in the figure, the opening is not shown so that a part of the outer peripheral surface of the intermediate roller 18 protrudes at a position corresponding to the intermediate roller 18 on a side opposite to the opening surface. Part is provided. In addition, the lifting cylinder body 3
On the opening surface, fitting projections 16 for locking the lifting tube cover 13 are formed on both sides of the opening surface. Thus, in order to attach the lifting cylinder cover 13 to the opening surface,
After fitting the U-shaped fitting portion 14 formed at one end of the lifting cylinder cover 13 into one fitting projection 16, the J-shape formed at the other end of the lifting cylinder cover 13. The J-shaped fitting portion 15 is fitted to the fitting projection 16 by sliding the fitting portion 15 into contact with the other fitting projection 16 (upward in FIG. 2). By tightening the mounting screw 17 screwed to the end of the mating projection 16, the lifting cylinder cover 13
Is fixed to the lifting cylinder main body 3. This lifting cylinder cover 13
Are fixed so as to cover the opening surface of the lifting cylinder main body 3 over the entire length of the lifting cylinder main body 3.
At the time of repair or replacement of 8, or at the time of trouble in the body 3 of the lifting tube, the lifting tube cover 13 can be removed to carry out repair, replacement work or coping with the trouble.

The conveyor belt 6 is driven around the periphery of the main body 3 by rotation of a lower roller 4 having a built-in motor. In order to apply tension to the transport belt 6, a tension roller mechanism 7 including a first tension roller 8, a second tension roller 9 and a third tension roller 10 that the transport belt 6 alternately contacts is disposed above the lower roller 4. Attached to. The rollers 8 and 10 of the tension roller mechanism 7 can be opened and closed, and are operated mainly when the conveyor belt 6 is replaced. In addition, an introduction gutter 11 for fixing the incoming pachinko balls in a plurality of rows is fixed to a lower portion of the lifting cylinder main body 3, and a ball-polished pachinko ball is discharged to an upper portion of the lifting cylinder main body 3. The upper bent gutter 40 with which the discharge gutter part 41 is integrally formed is connected. The upper bent gutter 40 is attached to an upper bent gutter mounting portion 61 that supports the upper roller 5 described later.

The pachinko balls that have flowed in from the introduction gutter 11 are lifted from the lower roller 4 toward the upper roller 5 by the conveyor belt 6 and then discharged from the discharge gutter 41. In the process, the dirt attached to the pachinko balls is wiped off by the frictional force with the cloth belt 21 provided around the guide rail cover 20 described below, and the cleaned pachinko balls are discharged from the discharge gutter portion 14. Will be done. As shown in FIG. 1, an inclination adjusting bolt 12 for adjusting the inclination of the introduction gutter 11 is attached to the introduction gutter 11. A spring is provided around the tilt angle adjusting bolt 12, so that the pachinko balls are smoothly aligned even when an excessive force is applied to the introduction gutter 11 by the pachinko balls flowing inside. .

On the other hand, a guide rail cover 20 is openably and closably mounted on the back side of the lifting cylinder main body 3 via a support hinge 28 mounted on one side surface of the lifting cylinder main body 3. The support hinges 28 are provided at several locations in the vertical direction of the lifting barrel main body 3. Further, a stopper 25 is attached to the other side surface of the lifting cylinder main body 3 via a stopper 26, and the guide rail cover 20 is provided at a position corresponding to the stopper 25. An engagement protrusion 24 for locking the lock 25 is provided. As shown in FIG. 2, the engagement protrusion 24 has a substantially C-shaped cross section integrally formed on the side surface of the guide rail cover 20.
The rail-shaped groove 20a is formed with the plate nut 27 and the flat washer 5.
5 and is attached. In addition,
The engagement protrusion 24 is a stepped screw, and the hexagonal head is slightly turned to loosen the sandwiched state between the plate nut 27 and the flat washer 55, thereby moving vertically within the rail groove 20a. , Can be re-fixed at any position. Further, the support hinge 28 is screwed into a screw hole of a plate nut 29 inserted into the rail groove 20 a of the guide rail cover 20 by screwing a screw portion of a mounting screw 38 inserted into a mounting hole of the support hinge 28. Support hinge 2
8 and the plate nut 29 are fixed to the guide rail 20 so as to sandwich the rail groove 20 a of the guide rail cover 20.

Inside the guide rail cover 20,
A guide rail member 30 having ball passages 31a to 31g, which are pachinko ball lifting passages, is mounted. The guide rail member 30 is formed of urethane, and engaging portions 32 provided at both ends of the guide rail member 30 are engaged with and fixed to the projecting portions of the guide rail cover 20, and the guide rail member The plurality of springs 35 mounted on the back side of the member 30 (the side opposite to the lifting cylinder main body 3) apply a pressure to the pachinko balls ascending the ball passages 31a to 31g. Further, on the rear side of the guide rail member 30, a spring accommodating portion 34 for accommodating one end of the spring 35 and guiding the expansion and contraction is formed, and the deformation of the guide rail member 30 is suppressed at the same height as the spring accommodating portion 34. Rail support member 33 for
Are formed.

The guide rail cover 20 has a cloth belt fixing and locking member 22 for locking one end of the cloth belt 21 and a tension locking member 23 for pulling and locking the other end of the cloth belt 21 on the back side thereof. Is attached, and a cloth belt 2 is
4 for guiding the sheet 1 back in the direction shown in FIG.
Reference). Thus, the cloth belt 21 locked by the cloth belt fixing and locking member 22 is passed from the lower end of the guide rail cover 20 to the cloth belt roller 37 through the cloth belt insertion portion 36 of the guide rail cover 20, and
The tension locking member 23 is pulled and locked.

Further, as described above, since the guide rail cover 20 is attached to the lifting cylinder main body 3 so as to be openable and closable, the guide belt cover 20 and the cloth belt 21 are transported to the ball polishing / lifting device 1. The mounting can be performed by rotating the guide rail cover 20 about the fulcrum of the support hinge 28 and opening it. The transport belt 6 and the cloth belt 21 are mounted in this manner, and the lifting cylinder main body 3 and the guide rail cover 20 are locked by the stopper 25 in a state where the guide rail cover 20 is closed. The cloth belt 21 is kept facing. When the guide rail cover 20 is closed and locked by the stopper 25 in this manner, a gap is formed between the lifting cylinder main body 3 and the guide rail cover 20. The size of the pachinko ball can be set by adjusting the fixing position of the locking member 26, and the pressure on the pachinko ball to be pumped can be changed according to the set value. As described above, in the state where the guide rail cover 20 is closed and locked by the stopper 25, the gap between the conveyor belt 6 and the ball passages 31a to 31g, that is, the interval at which the pachinko balls are sandwiched is usually It is set to about 7 to 10 mm.

Thus, the guide rail cover 20 is closed with the conveyor belt 6 and the cloth belt 21 mounted as described above, and the stopper 25 is engaged with the engaging projection 24 so that the guide rail cover 20 is lifted. The pachinko balls fitted into the ball passages 31a to 31g of the guide rails 20 via the cloth belt 21 by rotating the conveyor belt after being mounted on the belt 3 rise while the dirt is wiped off by the cloth belt 21. Is what you do.

At the end of the operation, the cloth belt 21 at the upper portion of the back surface is pulled by pulling the cloth belt 21 at the upper portion of the back surface in a state where the cloth belt fixing and locking member 22 is loosened so that the cloth belt 21 can move. 20 and then the cloth belt fixing and locking member 22 and the tension locking member 23 are sequentially operated to lock the cloth belt 21, thereby completing the preparation for polishing the next day. Also,
The winding operation of the cloth belt 21 is performed by the guide rail cover 2.
0 can be performed in an open state from the lifting cylinder main body 3 or in a closed state, but when replacing the cloth belt with a new cloth belt, the guide rail cover 20 is attached to the lifting cylinder main body 3. It is necessary to perform in the state opened from.

Next, the upper bent gutter 40 and the upper roller variable mechanism 54, which are essential parts of the present embodiment, will be described with reference to FIGS. FIG. 3 is an exploded perspective view showing a mounting structure of the upper bent gutter 40 and the upper roller variable mechanism 54, FIG. 4 is a cross-sectional view taken along line BB of FIG. 1, and FIG. FIG. 6 is a side view for explaining the operation of the roller variable mechanism, and FIG.
Upper bent gutter 4 when shock absorbing member 80 is attached to a
FIG. 7 is an enlarged sectional view of the shock absorbing member 8 supported by the support member 84 on the inner side surface 42 a of the upper bent gutter 40.
It is an expanded sectional view of the upper bent gutter 40 when 3 is fixed.

First, in FIG. 3, the upper bent gutter 40 is
A curved portion 42 which is formed of plastic such as nylon or polyacetal resin and covers from the upper end of the guide rail cover 20 to above the upper roller 5, and a discharge gutter extending horizontally from the curved portion 42. The part 41 is formed integrally. An impact absorbing member 80, which will be described in detail later, is attached to the inner side surface 42a of the curved portion 42, and a lower portion of the discharge gutter portion 41 is used to absorb a dropping impact when the discharged pachinko ball falls. Are detachably mounted. The drop buffer member 45 includes a mounting slot 44 formed in a mounting flange 43 protruding outside the discharge gutter portion 41 and a drop buffer member 45.
A hexagon nut 52 is formed by inserting a mounting screw 51 into a mounting long hole 50 formed in a mounting flange 49 formed on both side surfaces of the nut.
Are attached detachably by tightening.
Therefore, when the fall buffer 45 is worn or damaged, it can be replaced.

The fall buffer member 45 is formed by laminating a shock absorbing rubber 47 and a shock absorbing urethane 46 on a plastic base such as nylon or polyacetal resin in this order. It absorbs the impact of Note that the shock absorbing urethane 46 and the shock absorbing rubber 47 may be detachably fixed using mounting screws or the like so that they can be replaced when the shock absorbing urethane 46 and the shock absorbing rubber 47 are worn or damaged. Good. Further, a triangular portion 48 having a substantially triangular shape when viewed from the side is provided at one end of the drop buffering member 45. As shown in FIG. When the gutter 40 and the drop buffering member 45 are attached to the lifting cylinder main body 3, the gap between the gutter 40 and the conveyor belt 6 is made smaller than the pachinko ball diameter so that the pachinko balls discharged to the discharge gutter portion 41 can be transferred to the conveyor belt 6. It is intended not to drop from the gap between the fall buffer member 45 and the gap. This triangular part 4
The gap formed between the feed gutter 8 and the conveyor belt 6 is formed in a length of the long hole because the mounting holes of the discharge gutter portion 41 and the drop buffer 45 are formed as the mounting long hole 44 and the mounting long hole 50. It can be adjusted within the range.

On the other hand, an impact absorbing member 80 is attached to the inner side surface 42a of the curved portion 42 of the upper bent gutter 40.
This attachment structure will be described with reference to FIGS. 4 and 6. In FIG. 4, the curved portion 42 is formed in a concave shape over substantially the entire inner surface 42 a, and the shock absorbing member 80 is attached to the concave portion. Have been. That is, as shown in FIG. 6, two grooves 42b are formed along the curve on the inner side surface 42a of the curved portion 42 at positions slightly inside from both side ends thereof. Two projections 81 are provided on the inner surface 42a at positions corresponding to the grooves 42b on the inner side surface 42a. The projections 81 are fitted into the grooves 42b and adhered with an adhesive to form the curved portions 42. The shock absorbing member 80 is attached to the inner side surface 42a.
The width dimension and the length along the curved surface of the shock absorbing member 80 are:
Since the width of the inner surface 42a and the length along the curved surface are substantially the same, the shock absorbing member 80
Mounted in close contact with The impact absorbing member 80 is made of polyurethane, absorbs the impact due to the collision of the pachinko balls that have been pumped up, and prevents the inner side surface 42a of the upper bent gutter 40 from being damaged.
The material is not limited to polyurethane, but may be formed of another elastomer. The shock absorbing member 80 is provided on the inner side surface 42a of the upper bent gutter 40.
Is attached, the inner peripheral surface of the bent gutter 40 becomes the inner peripheral surface 80a of the shock absorbing member 80.
If not installed, the inner surface 4 of the upper bent gutter 40
2a becomes the inner peripheral surface of the upper bent gutter 40.

The upper bent trough 40 constructed as described above
As shown in FIG. 3, a mounting hole 53 formed in a side wall of the curved portion 42 and a mounting tap hole 62 formed in an upper bent gutter mounting plate 61 protruding from an upper portion of the lifting cylinder main body 3 are formed. The upper bent gutter 40 is attached to the lifting cylinder main body 3 by matching and tightening with the attachment bolt 64. Upper curved gutter 4
0 is attached to the lifting cylinder main body 3, the upper bent trough 40
The guide rail cover 20 is located below the upper end of the upper bent gutter 40. The lower end portion of the upper bent gutter 40 facing the upper end of the guide rail cover 20 forms an entrance portion of the upper bent gutter 40. Further, a gap between the uppermost inner surface of the upper bent gutter 40 attached to the lifting cylinder main body 3 and the uppermost end of the upper roller 5 around which the conveyor belt 6 is stretched forms an outlet portion of the upper bent gutter 40. ing. Although FIG. 3 shows only one side surface of the lifting cylinder main body 3, the mounting bolt 64 is similarly tightened from the opposite side.

The upper bent gutter mounting plate 61 protruding from the upper portion of the lifting cylinder main body 3 has an upper roller variable as an interval adjusting mechanism that supports the upper roller 5 and raises and lowers the position of the upper roller 5. A mechanism 54 is provided. Therefore,
The variable upper roller mechanism 54 will be described with reference to FIGS.

In FIG. 3, the upper roller variable mechanism 54
Is a square-shaped support member 65 inserted and fixed to a roller shaft 60 that rotatably supports the upper roller 5, and adjusts the height position of the upper roller 5 by contacting the lower end surface of the support member 65. The adjusting bolt 71 includes an adjusting block 69 through which the adjusting bolt 71 is screwed, and a fixing nut 70 for fixing a screwing position of the adjusting bolt 71 screwed to the adjusting block 69. . In addition, the upper bent gutter mounting plate 61 has a sliding groove 72 into which the roller shaft 60 is inserted and slides in the vertical direction. A guide projection 63 for regulating the position in the lateral direction is provided. Since the roller shaft 60 is fixed to the upper roller 5 via a ball bearing, the upper roller 5 can freely rotate even when the roller shaft 60 is fixed. Further, the shaft support member 65 is inserted into the roller shaft 60, and a flat washer 66 and a spring washer 67 are interposed behind the roller support member 60, and are pressed and fixed to the outer surface of the upper bent gutter mounting plate 61 by a hexagon nut 68. However, the flat washer 66 and the spring washer 67 inserted between the shaft support member 65 and the hexagonal nut 68 prevent the hexagonal nut 68 from loosening due to vibration generated by rotation of the upper roller 5 or the like. Things. Although only one side surface of the lifting cylinder main body 3 is shown in the drawing, an upper roller variable mechanism 54 is provided on the opposite side surface, and a similar mechanism is configured.

When the support member 65 is inserted into the roller shaft 60 and fixed together with the flat washer 66 and the spring washer 67 by the hexagon nut 68 as described above, the adjustment bolt 71 is located below the support member 65. That is, by rotating the adjustment bolt 71 in the tightening direction, the tip of the adjustment bolt 71 comes into contact with the lower end surface of the shaft support member 65.

In order to adjust the position of the upper roller 5 in the vertical direction, first, the fixing nut 70 that fixes the adjusting bolt 71 to the adjusting block 69 is loosened so that the adjusting bolt 71 can be rotated. Thereafter, the hexagon nut 68 that presses and fixes the shaft support member 65 to the upper bent gutter mounting plate 61 is loosened. At this time, from the position where the tip of the adjustment bolt 71 can contact the lower end surface of the shaft
Hex nut 68 is loosened to the extent that it does not come off. After the hexagon nut 68 is loosened, the adjustment bolt 71 is rotated, and the vertical position of the upper roller 5 is adjusted by moving the support member 65 contacting the tip of the adjustment bolt 71 up and down. After the position in the vertical direction is determined, the hexagon nut 68 and the fixing nut 70 are tightened to fix the roller shaft 60 and the adjustment bolt 71. By performing such adjustment, the vertical position of the upper roller 5 can be arbitrarily set.

As described above, the upper roller 5 can be slid in the vertical direction with respect to the lifting barrel main body 3 by the upper roller variable mechanism 54, but the outer periphery of the transport belt 6 stretched over the upper roller 5 Surface and the inner peripheral surface 80 of the upper bent gutter 40
The gap size with a is always about 13 to 14 mm or more,
It is set to be larger than the diameter of the pachinko ball. That is, even when the upper roller 5 is mounted at the uppermost position, the gap between the outer peripheral surface of the conveyor belt 6 stretched over the upper roller 5 and the inner peripheral surface 80a of the upper bent gutter 40 is larger than the diameter of the pachinko ball. It is set to be large.

The guide projection 63 or the upper bent trough 6
A scale may be attached to 1 or the like so that the gap between the outer peripheral surface of the conveyor belt 6 and the inner peripheral surface 80a of the upper bent gutter 40 can be grasped numerically. Further, a structure in which the upper roller variable mechanism 54 on both sides is raised and lowered at the same time may be configured to be able to move in parallel without changing the inclination of the roller shaft 60. Further, instead of the above-described upper roller variable mechanism 54, an eccentric cam is rotated by a motor,
The upper roller 5 may be moved up and down by causing the roller shaft 60 to follow the outer shape of the eccentric cam. Further, in the present embodiment, the upper roller variable mechanism 54 for raising and lowering the upper roller 5 has been described. However, instead of raising and lowering the upper roller 5, the variable mechanism is used for the upper bent gutter 40 so that the upper bent gutter 40 can be moved. It may be moved up and down to adjust the gap between the outer peripheral surface of the conveyor belt 6 and the inner peripheral surface 80a of the upper bent gutter 40.

The details of the upper bent gutter 40 and the upper roller variable mechanism 50 have been described above.
In the 0 part, as shown in FIG. 4, the pachinko balls conveyed to the upper curved gutter 40 by the conveyor belt 6 are conveyed by the conveying belt 6 stretched over the upper roller 5 and the inner peripheral surface 80 a of the upper curved gutter 40. Is discharged to the discharge gutter part 41 by inertia when conveyed without being pinched between them. At this time,
The pachinko ball conveyed to the upper bent gutter 40 collides vigorously with its inertia against the inner peripheral surface 80a of the upper bent gutter 40, but as described above, the inner surface 42a of the upper bent gutter 40 has a shock absorbing member. The pachinko balls conveyed by the conveyor belt 6 are attached to the upper bent trough 40 because the
Noise at the time of collision with the vehicle can be reduced. Also,
If the pachinko ball is not transported smoothly,
Even if it stays within 0, in addition to the inertia of the pachinko ball,
When the subsequent pachinko ball collides or comes into contact with the rotating conveyor belt 6, the ball is discharged to the discharge gutter portion 41.

The shock absorbing member 80 is provided on the inner side surface 42a.
It is not limited to the one formed by adhering to the inner surface 42a of the upper curved gutter 40 by insert injection molding. In addition, the impact absorbing member 80 may be detachably attached, so that the impact absorbing member 80 may have a replaceable structure.
A description will be given of such a replaceable structure with reference to FIG. 7. In FIG. 7, engagement concave portions 82 for locking the shock absorbing member 83 are provided at both ends of the inner surface 42 a parallel to the curvature of the concave portion. The shock absorbing member 83 and the supporting member 84 are fixed to the inner side surface 42a by engaging and inserting the shock absorbing member 83 with the supporting member 84 bonded to the back surface of both ends parallel to the curve in the engaging concave portion 82. You. At this time, the lateral position of the shock absorbing member 83 is adjusted such that a gap is formed between both side surfaces of the shock absorbing member 83 and both side wall surfaces of the inner side surface 42a. By doing so, a gap 85 is provided between the shock absorbing member 83 and the inner side surface 42a in both the vertical and horizontal directions.
Is formed. The shock absorbing member 83 and the support member 84
Are both formed of an elastomer, absorb the impact of the collision of the pachinko balls pumped up, and
This prevents the inner side surface 42a from being damaged. As described above, the shock absorbing member 83 and the inner side surface 4 of the upper bent gutter 40
When the shock absorbing member 83 is supported by the support member 84 so that a gap is formed between the shock absorbing member 8a
3 can be detachably attached to the upper bent gutter 40, and the shock absorbing member 83 can bend and vibrate within the range of the gap, so that the shock due to the collision of the pachinko ball can be absorbed. The shock absorbed by
Since the shock absorbing member 83, the supporting member 84, and the upper bent gutter 40 propagate while attenuating in this order, only a small shock is transmitted to the upper bent gutter 40, and almost no noise is generated. When the shock absorbing member 83 is attached to the inner side surface 42a of the upper bent gutter 40, the inner peripheral surface of the upper bent gutter 40 becomes the inner peripheral surface 83a of the shock absorbing member 83, but the shock absorbing member 83 is attached. If not, upper bent gutter 40
Of the upper bent gutter 40 is the inner peripheral surface of the upper bent gutter 40.

The inner side surface 42a is formed integrally with the upper bent gutter 40 as a part of the upper bent gutter 40, but the curved portion 42 on which the inner side surface 42a is formed is individually formed from the upper bent gutter 40. By forming and attaching the bending portion 42 in a detachable manner, the bending portion 42 may have a replaceable structure. Further, the inner surface 42a formed in the curved portion 42 may have a structure in which the shock absorbing members 80 and 83 are attached as described above. In the case where the shock absorbing members 80 and 83 are attached to the inner side surface 42a of the curved portion 42 in this manner, since the curved portion 42 is detachable, the shock absorbing member 80 can be attached or replaced, or the shock absorbing member 83 can be attached or detached. Can be facilitated.

While the embodiment of the present invention has been described above, according to this embodiment, the upper roller 5 and the lower roller 4 which are rotatably supported up and down on the lifting cylinder main body 3,
A conveyor belt 6 which is wound around the rollers 5 and 4 and is circulated around the lifting cylinder main body 3;
Guide rail cover 20 for holding pachinko balls between
And the guide rail cover 20 which is mounted so as to face the conveyor belt 6 stretched over the upper roller 5 and
Bend gutter 40 for inducing pachinko balls P released from
In the ball polishing / lifting apparatus 1 configured to polish and transport the pachinko balls P, the inner peripheral surfaces 80a and 83a (80a) of the upper bent gutter 40 at least at the entrance of the upper bent gutter 40.
a, 83a is not present, and the gap between the outer peripheral surface of the conveyor belt 6 and the pachinko ball P is formed to be larger than the diameter of the pachinko ball P, so that the pachinko ball P released from the upper end of the guide rail cover 20 has an upper bent gutter. The pachinko ball P does not collide with the upper bent gutter 40 at the entrance portion of the 40, and the pachinko balls P are transferred to the outer circumferential surface of the transport belt 6 and the inner circumferential surfaces 80a, 83 of the upper bent gutter 40.
a and smoothly flows out from the upper bent gutter 40.

In this embodiment, the gap between the inner peripheral surfaces 80a, 83a of the upper bent gutter 40 and the outer peripheral surface of the conveyor belt 6 is defined as a pachinko ball P from the entrance to the exit of the upper bent gutter 40. The pachinko ball P released from the upper end of the guide rail cover 20 is made larger than the diameter of the
83a and the outer peripheral surface of the conveyor belt 6 can be moved by inertia and discharged to the upper bent gutter 40.
Inner peripheral surfaces 80a and 83a of upper bent gutter 40 and transport belt 6
It is not necessary to finely adjust the pinching force of the pachinko ball P by the outer peripheral surface of the pachinko ball.

In the present embodiment, the upper roller variable mechanism 5 for adjusting the gap between the inner peripheral surfaces 80a and 83a of the upper bent gutter 40 and the outer peripheral surface of the conveyor belt 6 is used.
4 (interval adjusting mechanism), the upper roller 5
Outer surface of the conveyor belt 6 and the upper bent gutter 40
Can be arbitrarily set within the adjustment range, so that it is possible to adjust the impact force when the pachinko ball P conveyed by the conveyor belt 6 collides with the upper bent gutter 40. It is possible to suppress breakage of the upper bent gutter 40. In particular, as in the present embodiment, the interval adjusting mechanism has a structure in which the upper roller 5 is pivotally supported by an upper roller variable mechanism 54 slidable in the vertical direction with respect to the lifting cylinder main body 3. Since the gap between the outer peripheral surface of the conveyor belt 6 and the inner peripheral surfaces 80a and 83a of the upper bent gutter 40 can be adjusted without changing the height of the upper bent gutter 40, the entire ball polishing and transporting apparatus 1 can be adjusted. Pachinko balls P transported without changing the height of the upper bent trough 4
The impact force at the time of colliding with zero can be adjusted, and breakage of the upper bent gutter 40 can be suppressed.

Further, in the present embodiment, the shock absorbing members 80, 83 are provided on the inner peripheral surfaces 80a, 83a of the upper bent gutter 40.
Due to the formation of 83, the noise when the pachinko balls P conveyed by the conveyor belt 6 collide with the upper bent gutter 40 can be reduced.

Further, in the present embodiment, a gap is formed between the shock absorbing member 83 and the upper bent gutter 40, so that the shock absorbing member 83
5 can absorb the impact due to the collision of the pachinko ball P, and the impact absorbing member 8
3, the shock absorbed by the upper bent gutter 40 propagates while attenuating in the order of the shock absorbing member 83 and the upper bent gutter 40.
Only a small shock is propagated to the device, and almost no noise is generated.

[0040]

As is apparent from the above description, according to the first aspect of the present invention, the upper roller and the lower roller which are rotatably supported up and down on the lifting cylinder main body, and the roller hung between the rollers. A transport belt that is passed around and wound around the lifting cylinder main body, a guide rail cover that is attached to the outer peripheral surface on the one surface side on which the transport belt rises, and that holds a pachinko ball between the transport belt and the transport belt; An upper bent gutter mounted so as to face the conveyor belt stretched over the upper roller and guiding the pachinko balls released from the guide rail cover; The gap between the inner peripheral surface of the upper bent gutter and the outer peripheral surface of the conveyor belt is formed larger than the diameter of the pachinko ball at least at the entrance of the upper bent gutter. Pachinko balls released from the upper end of the rail cover do not collide with the upper bent gutter at the entrance of the upper bent gutter, and the pachinko balls flow smoothly between the outer peripheral surface of the transport belt and the inner circumferential surface of the upper bent gutter. And is discharged from the upper bent gutter.

In the invention of claim 2, the gap between the inner peripheral surface of the upper bent gutter and the outer peripheral surface of the conveyor belt is larger than the diameter of the pachinko ball from the entrance to the exit of the upper curved gutter. Due to the formation, the pachinko balls released from the upper end of the guide rail cover can be moved by inertia between the inner peripheral surface of the upper curved gutter and the outer peripheral surface of the conveyor belt and can be discharged from the upper curved gutter,
There is no need to finely adjust the pinching force of the pachinko ball between the inner peripheral surface of the upper bent gutter and the outer peripheral surface of the conveyor belt.

According to the third aspect of the present invention, a gap adjusting mechanism for adjusting a gap between an inner peripheral surface of the upper bent gutter and an outer peripheral surface of the conveyor belt is provided, so that the gap is extended over the upper roller. The gap between the outer peripheral surface of the transport belt and the inner peripheral surface of the upper bent gutter can be set arbitrarily within the adjustment range, so that the impact force when the pachinko ball conveyed by the conveyor belt collides with the upper bent gutter Can be adjusted, and breakage of the upper bent gutter can be suppressed.

Further, in the invention of claim 4, the interval adjusting mechanism is configured such that the upper roller is supported by an upper roller variable mechanism slidable up and down with respect to the lifting cylinder main body. Since the gap between the outer peripheral surface of the conveyor belt and the inner peripheral surface of the upper bent gutter can be adjusted without changing the height of the upper bent gutter, without changing the height of the entire ball polishing / lifting device. It is possible to adjust the impact force when the transported pachinko ball collides with the upper bent gutter,
Damage of the upper bent gutter can be suppressed.

According to the fifth aspect of the present invention, since the impact absorbing member is formed on the inner peripheral surface of the upper bent gutter, noise generated when the pachinko ball conveyed by the conveyor belt collides with the upper bent gutter is reduced. Can be reduced.

Further, according to the invention of claim 6, since a gap is formed between the shock absorbing member and the upper bent gutter, the shock absorbing member bends and vibrates within the range of the gap. As a result, the impact due to the collision of the pachinko ball can be absorbed, and the impact absorbed by the impact absorbing member propagates while attenuating in the order of the impact absorbing member and the upper bent gutter, so that only a small impact propagates to the upper bent gutter. Noise is hardly generated.

[Brief description of the drawings]

FIG. 1 is a perspective view of a ball polishing apparatus according to an embodiment viewed from the front.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is an exploded perspective view showing a mounting structure of an upper bent gutter and an upper roller variable mechanism.

FIG. 4 is a sectional view taken along line BB of FIG. 1;

FIG. 5 is a side view for explaining the operation of the upper roller variable mechanism.

FIG. 6 is an enlarged sectional view of the upper bent gutter when an impact absorbing member is attached to the inner peripheral surface of the upper bent gutter.

FIG. 7 is an enlarged sectional view of the upper bent gutter when an impact absorbing member supported by a support member is attached to the inner peripheral surface of the upper bent gutter.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ball polishing / lifting device 3 Lifting cylinder main body 5 Upper roller 6 Transport belt 20 Guide rail cover 21 Cloth belt 30 Guide rail member 31a to 31g Ball passage 40 Upper bent gutter 41 Discharge gutter (discharge gutter) 42 Curved portion 42a Side surface 45 Drop buffering member 54 Upper roller variable mechanism (interval adjusting mechanism) 60 Roller shaft 65 Shaft support member 69 Hexagon nut 70 Fixed nut 71 Adjusting bolt 80 Shock absorbing member 83 Shock absorbing member 84 Support member 85 Clearance

Claims (6)

[Claims] An upper roller and a lower roller which are rotatably supported vertically above and below the lifting cylinder main body, a transport belt which is stretched between the rollers and is circulated around the lifting cylinder main body; A guide rail cover mounted to face the outer peripheral surface on one side and holding the pachinko ball between the transport belt and the guide belt mounted to face the transport belt stretched over the upper roller; An upper bent gutter for guiding the pachinko balls released from the rail cover, and a ball polishing / lifting device for polishing and pachinko balls comprising a pachinko ball, wherein at least an inner peripheral surface of the upper bent gutter at an entrance portion of the upper bent gutter. A ball polishing / lifting device, wherein a gap between the outer peripheral surface of the conveyor belt and the pachinko ball is formed larger than a diameter of the pachinko ball. 2. A gap between an inner peripheral surface of the upper curved gutter and an outer peripheral surface of the conveyor belt is formed to be larger than a diameter of a pachinko ball from an entrance portion to an exit portion of the upper curved gutter. Item 4. A ball polishing and lifting device according to Item 1. 3. The ball polishing apparatus according to claim 1, further comprising an interval adjusting mechanism for adjusting an interval between a gap between an inner peripheral surface of the upper bent gutter and an outer peripheral surface of the conveyor belt. Lifting equipment. 4. The gap adjusting mechanism according to claim 3, wherein the upper roller is pivotally supported by an upper roller variable mechanism slidable up and down with respect to the lifting cylinder main body. Tama polishing equipment. 5. The ball polishing / lifting device according to claim 1, wherein an impact absorbing member is formed on an inner peripheral surface of the upper bent gutter. 6. The ball polishing and lifting device according to claim 5, wherein a gap is formed between the shock absorbing member and the upper bent gutter.