JP5100043B2 - Lift polishing machine - Google Patents

Description

  The present invention relates to a belt type lifting and polishing apparatus installed on Pachinko Island.

  The pachinko ball lifting and polishing device is one of the important devices indispensable when building an automatic supply system for pachinko balls on Pachinko Island. Among these lifting and polishing devices, it is called a belt-type polishing and lifting device, and the pachinko balls are lifted while rolling while using the rising surface of the endless belt that wraps up and down, and at the same time, it rises while rolling. A device that has a mechanism of polishing off dirt adhering to a pachinko ball with an abrasive cloth pressed against the ball is widely used.

  Patent Document 1 discloses a pachinko ball lifting and polishing apparatus that can perform good lifting without causing pachinko ball biting or the like during lifting and that has a high polishing ability. It is disclosed. The lifting and polishing apparatus is provided with a supply guide, and pachinko balls discharged from a lower storage tank or the like of Pachinko Island are first collected in the supply guide. Then, the pachinko balls aligned by the supply guide are fed to the lower side of the lower rotating drum, and are guided to the lifting mechanism while maintaining the aligned state.

  The groove of the guide rail that becomes the passage of the rising pachinko ball is formed in a substantially semicircular shape having a diameter slightly larger than the diameter of the pachinko ball. And, in the middle of the groove, a further widened groove is provided as appropriate, and the rotation axis of the pachinko ball that rotates at that location changes, so that the entire circumference of the pachinko ball can be uniformly polished Explained. For the guide rail, artificial marble or the like based on an acrylic resin that does not elastically deform is used.

  JP 2004-209289 A (FIGS. 1 to 5)

  The conventional lifting and polishing apparatus as described above is a mechanism in which the collected pachinko balls are once passed through alignment means formed by alignment grooves made up of a large number of parallel grooves and then taken into the apparatus. It has become. However, since a large amount of pachinko balls are concentrated on the aligning means, the pachinko balls compete with each other at the entrance of the aligning groove and tend to be clogged. A wasteful time will be required for accepting the pachinko balls, and the alignment density of the balls becomes coarse by the wasteful time difference. Therefore, the processing capability of the conveyor belt cannot be fully utilized.

  Under such circumstances, the main object of the present invention is to increase the processing capacity of the feeding by increasing the alignment density of the pachinko balls. Further, the polishing performance is improved and the entire circumference of the pachinko ball can be uniformly polished.

The lift polishing apparatus of the present invention has been made in view of the problems as described above, and includes a conveying belt that circulates up and down, and a guide rail groove that is disposed to face the rising surface of the conveying belt, and forms a groove. Lifting and polishing of pachinko balls configured to be lifted and polished by sandwiching the pachinko balls between the guide rail groove and the conveyor belt in a state of being sandwiched between polishing cloths stretched on the surface side In the apparatus, the guide rail groove is formed by an alignment groove portion of a pachinko ball disposed in a lower portion and a polishing groove portion connected to the upper portion thereof, and the alignment groove portion is an elastic forming a groove bottom of the guide rail groove. A pachinko ball that is composed of a plurality of groove portions partitioned by a deformable bottom wall and an elastically deformable groove wall, and is transported, abuts on the groove bottom via the polishing cloth, and the bottom wall Elastically deforms the groove wall The pachinko balls are accommodated one by one in the respective groove portions and aligned by being conveyed through the groove portions, and the polishing groove portions are arranged so that the pachinko balls to be fed are passed through the polishing cloth. The guide rail groove is a deep groove having a substantially semicircular cross section formed so as to abut on the groove wall side of the guide rail groove and not to abut the groove bottom .

  Furthermore, the upper surface of the guide rail groove forming surface in the polishing groove portion is provided so as to protrude forward from the upper surface of the alignment rail groove forming surface of the guide rail groove.

  Further, the polishing groove portion is provided with a chamfered portion extending in the longitudinal direction of the groove with respect to the standing wall formed at the end portion of the guide rail groove.

  The lifting and polishing apparatus of the present invention has an alignment groove formed by shallow grooves capable of some elastic deformation at the lower part of the guide rail groove, so that even if pachinko balls compete with each other at the entrance, Stagnation due to clogging seen in the alignment means is less likely to occur. In other words, pachinko balls are received in the lifting and polishing apparatus even if they are still competing, and as they continue to be transferred, each will naturally fit in the appropriate position in the guide rail groove, resulting in waste during reception. There is no time and the processing capacity is improved by high-density conveyance. In addition, since a separate alignment means as in the prior art is not required, a compact design that does not take up space can be achieved. Furthermore, the manufacturing cost can be reduced accordingly.

  In the polishing groove provided in the upper portion of the guide rail groove, the pachinko balls are supported by both side portions thereof with respect to the traveling direction of the pachinko balls that rise while rolling. Therefore, the contact line with the polishing cloth is simply doubled as compared with the conventional pachinko ball supported and conveyed by the groove center line in the traveling direction, that is, the outermost diameter portion of the ball. In addition, the pachinko balls and the polishing cloth come into contact with each other even in the middle part of the two contact lines, so that the pachinko balls are polished in a surface contact state.

  On the guide rail groove forming surface, the polishing groove portion is disposed so as to protrude forward from that of the alignment groove portion. That is, the polishing groove is provided closer to the polishing cloth. Moreover, in the polishing groove, the pachinko balls are supported by both side portions as described above and are formed so as to be in surface contact with the polishing cloth even in the middle portion thereof, so that a strong frictional force acts on the pachinko balls. Therefore, a slight slip occurs between the pachinko ball and the polishing cloth, and the pachinko ball conveying speed is lower in the polishing groove than in the alignment groove. Moreover, when the pachinko balls are transferred from the alignment groove to the polishing groove, the posture in the traveling direction becomes disturbed, so the pachinko balls are transported while gradually adjusting the posture, and the entire circumference is carefully and evenly distributed. It will be polished.

  On the other hand, since the alignment grooves do not receive a strong restraining force, the pachinko balls are efficiently aligned while being conveyed at a relatively high speed. In addition, by providing a chamfered portion at a step generated at the joint between the alignment groove and the polishing groove, the pachinko balls are smoothly transferred from the alignment groove to the polishing groove.

  Next, embodiments of the present invention will be described with reference to the drawings. 1 is a front view (a) and a side view (b) thereof showing the lift polishing apparatus of the present invention, and FIG. 2 is a front view showing a state in which the lower door is opened (the polishing cloth is omitted for explanation). 3 is a cross-sectional view (a) of the alignment groove portion of the guide rail groove and the same cross-sectional view (b) when the pachinko ball is lifted. FIG. 4 is a cross-sectional view (a) of the polishing groove portion of the guide rail groove and the pachinko ball. It is the same sectional drawing (b) at the time of lifting.

  As shown in FIG. 1, the lifting and polishing apparatus 1 is accommodated in, for example, a storage case erected in the center of a pachinko island, and pachinko machines are arranged in parallel on both wings. The main part of the lifting and polishing apparatus 1 is constituted by a lifting tower 3 that stands on a base 2 laid on the floor surface. On the front side of the lifting tower 3, an upper door 4 and a lower door 5 are attached with hinges 6 so as to be freely opened and closed. The closed door is fixed by a latch 7.

  A pulley (not shown) is horizontally supported on the upper and lower parts of the lifting tower 3, and a conveyor belt 8 formed of an endless belt is bridged between the two pulleys. The conveyor belt 8 is configured to circulate when the rotational force of the drive motor 9 installed in the lower portion of the lifting tower 3 is transmitted through the transmission belt 10. At this time, the transport belt 8 is disposed so that the front side is a rising surface in a front view. Further, behind the rising surface, a rotating roller 11 that is horizontally supported is disposed at an appropriate interval in the vertical direction, and supports the rising surface of the conveyor belt 8 from the back surface side.

  Inside the lower door 5, a guide rail 12 is inserted over the entire length (see FIG. 2). The guide rail 12 is formed with a guide rail groove 12 a in which a plurality of vertical grooves are arranged in parallel to face the conveyor belt 8. Then, the entire surface where the guide rail groove 12 a is formed is covered with the polishing pad 14. The polishing cloth 14 is attached to the lower door 5, folded back at the upper and lower ends of the lower door 5, and held by a cloth hanger 15 on the front side. The lower end portion of the polishing cloth 14 is firmly fixed with a cloth fixing latch 16. Further, tension is given to the polishing cloth 14 by the weight of the cloth hanger 15 at the top. About this, it is good also as a method of pulling with a spring.

  As shown in FIG. 2, the guide rail 12 is formed by two different types of grooves. That is, the lower part is a pachinko ball alignment groove 13a and the upper part is a polishing groove 13b. The polishing groove 13b is formed to be twice or more longer than the alignment groove 13a. Therefore, the polishing groove 13b has a configuration in which a plurality of plate-like bodies are connected. In FIG. 2, the polishing cloth 14 is omitted in order to make the guide rail groove 12 easier to see. In the state where the lower door 5 is closed, the pachinko balls enter between the transport belt 8 and the polishing cloth 14 and are substantially sandwiched and transported between the transport belt 8 and the guide rail 13. It becomes.

  Specifically, the alignment groove 13a of the guide rail 12 is configured as shown in a cross-sectional view in FIG. That is, the guide rail 12 is inserted inside the lower door 5 so as to face the conveyor belt 8 supported from the back by the rotating roller 11. The guide rail 12 has a two-layer structure including a guide rail groove 12a and a rail base 12b. The guide rail groove 12a is relatively thin, and the cross-sectional shape of the groove is a substantially rectangular shallow groove. The guide rail groove 12a is made of a material that is somewhat elastically deformed, such as urethane rubber. On the other hand, the rail base 12b is formed thick, and a material rich in elastic deformation, such as sponge, is used.

  The details of the polishing groove 13b of the guide rail 12 are shown in the cross-sectional view of FIG. The configuration of the polishing groove 13b is basically the same as that of the alignment groove 13a. The thickness of the rail base 12b is also the same. However, only the guide rail groove 12a has a different shape and is formed thicker as a whole. Further, the cross section of the groove is formed in a substantially semicircular deep groove. In addition, as will be described later, this groove is formed in a deep groove so that the pachinko balls to be fed abut on the groove wall side of the guide rail groove 12a via the polishing pad 14 and do not abut against the groove bottom. As a result of such a configuration, the upper surface of the guide rail groove 12a on which the guide rail groove 12a is formed protrudes toward the conveying belt 8 in the polishing groove portion 13b rather than the alignment groove portion 13a.

  Next, as shown in FIG. 3B, the pachinko balls P entering the alignment groove portion 13a are deformed by the elastic deformation of the guide rails 12 even if a plurality of pachinko balls P compete near the entrance. Accepted within. Since the height of the groove wall of the guide rail groove 12a is low and the pressing force between the guide rail groove 12a and the conveying belt 8 is weak, it is not strongly restricted by the groove wall. And as these pachinko balls P continue to be lifted while competing, each comes to settle in a nearby groove. Therefore, it becomes possible to align without incorporating separate alignment means as in the prior art, and the pachinko ball P does not stagnate at the entrance when receiving, so there is no wasted time. , High density alignment will be performed. The pachinko ball P once stored in the groove is brought into contact with the polishing cloth 14 at the point A, which is the bottom of the groove, so that the pachinko ball P is lifted at a speed substantially equal to the moving speed of the conveyor belt 8. become.

  FIG. 4B shows the state of conveyance of the pachinko balls P that have been lifted up to the polishing groove 13b. The pachinko ball P is supported via the polishing cloth 14 at the point B of the groove wall of the guide rail groove 12a on both sides thereof, and does not contact at the point A of the groove bottom. However, since the polishing pad 14 is pulled, the polishing pad 14 and the pachinko ball P come into contact at point A. That is, the pachinko ball P is in surface contact with the polishing pad 14 between the two B points. Furthermore, since the guide rail groove 12a and the conveyor belt 8 are provided closer to each other, the pressing force of the polishing pad 14 on the pachinko balls P also acts strongly.

  The pachinko ball P is slightly slipped between the polishing cloth 14 due to the strong pressing force, and is therefore transported at a speed slower than the moving speed of the conveyor belt 8, and is carefully polished during the transportation. Will be. Further, when the pachinko balls P are transferred from the alignment grooves 13a to the polishing grooves 13b, the moving direction posture of the pachinko balls P becomes disturbed, so that the entire surface is uniformly polished in the process of gradually adjusting the posture in the polishing grooves 13b. It will be. Moreover, since the pachinko balls P are aligned at a high density, the polishing process is performed while maintaining high efficiency.

  As shown in FIG. 2, a chamfer 17 is provided at each end of the guide rail groove to be connected to the standing wall in the longitudinal direction of the groove. In particular, since the step having an increased height is formed at the connecting portion from the alignment groove portion to the polishing groove portion as described above, the presence of the chamfered portion 17 is important. The chamfered portion 17 allows the pachinko balls P to be delivered smoothly.

  The lift polishing apparatus 1 of the present invention reduces the distance of the polishing groove 13b as compared with the conventional apparatus, but not only covers the shortened distance but also the polishing performance. In addition, the processing capacity of the lift polishing is improved.

  (A) which shows this invention lifting polishing apparatus is a front view, (b) is a side view.   It is a front view which shows the state which opened the lower door of this invention lifting polishing apparatus.   (A) in the alignment groove part of a guide rail is sectional drawing, (b) is sectional drawing at the time of pachinko ball lifting.   (A) in the grinding | polishing groove part of a guide rail is sectional drawing, (b) is sectional drawing at the time of pachinko ball lifting.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lifting polishing apparatus 5 Lower door 8 Conveying belt 12 Guide rail 12a Guide rail groove 12b Rail base 13a Alignment groove part 13b Polishing groove part 14 Polishing cloth 17 Chamfer part P Pachinko ball

Claims (3)

The guide rail groove includes a conveying belt that circulates up and down, and a guide rail groove that is disposed to face the rising surface of the conveying belt, and is in a state of being interposed via a polishing cloth stretched on the groove forming surface side. In the lifting and polishing apparatus for pachinko balls configured to be lifted and polished by sandwiching the pachinko balls with the conveyor belt,
The guide rail groove is formed by an alignment groove part of pachinko balls disposed in a lower part and a polishing groove part connected to the upper part thereof,
The alignment groove portion is composed of a plurality of groove portions defined by an elastically deformable bottom wall that forms the groove bottom of the guide rail groove and an elastically deformable groove wall, and the pachinko balls to be fed are polished. The pachinko balls are accommodated in the respective groove portions one by one so as to be aligned by being brought into contact with the groove bottom via a cloth and being conveyed through the groove portions while elastically deforming the bottom wall and the groove walls. Configured,
The polishing groove portion is a deep groove with a substantially semicircular cross section formed so that the pachinko ball to be fed contacts the groove wall side of the guide rail groove through the polishing cloth and does not contact the groove bottom. Is,
A lift polishing apparatus characterized by that .   The lift polishing apparatus according to claim 1, wherein an upper surface of the guide rail groove forming surface in the polishing groove portion is provided to protrude forward from an upper surface of the alignment rail groove forming surface of the guide rail groove.   3. The lift according to claim 1, wherein the polishing groove is provided with a chamfered portion extending in a longitudinal direction of the groove with respect to a standing wall formed at an end of the guide rail groove. Feed polishing machine.

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