JP2004222800A - Ball swallowing amount suppressing device for pachinko ball carrying and polishing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ball swallowing amount suppressing device for a new carrying and polishing device capable of carrying pachinko balls while polishing them without biting by avoiding carrying of the pachinko balls in a state of adhesion during transfer without regard to the speed of a carrying belt. <P>SOLUTION: The pachinko ball carrying and polishing device is for carrying the pachinko balls on an endless belt. Among guide grooves, a guide groove with the shape of a cross section in contact with the pachinko balls via two points is formed on the upstream side of a carrying path to function as a pachinko ball swallowing amount suppressing part, and the other guide groove has the shape of a cross section in contact with the pachinko balls via one point and is connected adjacent to the downstream side of the pachinko ball swallowing amount suppressing part. Thus, the pachinko balls are carried keeping spaces for avoiding contact with each other on the carrying belt during a carrying and polishing process so as to prevent occurrence of biting of the balls. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cloth-type pachinko ball transfer and polishing apparatus for stably transferring and polishing the amount of pachinko balls flowing into the transfer and polishing apparatus.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as a technique related to a pachinko ball lifting and polishing apparatus, generally, an endless lifting belt is provided on one surface of a lifting path, and an abrasive such as paper or cloth having a polishing ability is provided on the other surface. A guide rail made of an elastic material having a plurality of rows of substantially semi-circular concave grooves slightly larger than the diameter of the pachinko ball is fixed to a holding plate via a spring or the like, and a lifting belt, an abrasive, and a guide are provided. 2. Description of the Related Art There is known a lifting polishing apparatus in which a pachinko ball is interposed between rails so as to polish the pachinko ball while driving the lifting belt to lift the pachinko ball. In this lifting polishing apparatus, in order to increase the contact area between the pachinko balls and the abrasive, a guide rail that is elastically deformable so as to follow the pachinko balls to be lifted is held by a holding plate via a spring or the like. Since the pinching pressure of the pachinko balls is increased in order to obtain a high polishing ability, the guide rail is bent to embrace the pachinko balls in the concave groove, and the intended pinching pressure can be obtained. No, the frictional force with the abrasive increases, the pachinko balls do not rotate well, the pachinko balls cannot be polished as a whole, or the pachinko balls stay in the ball passage, In some cases, it was bitten and hindered freight. There is a pachinko ball lifting and polishing apparatus in which the sandwiching plate is formed of a highly rigid resin plate in order to prevent such a lifting and polishing apparatus from biting a ball (for example, see Patent Document 1).
[0003]
In this conventional lifting and polishing apparatus, since the holding plate is formed of a highly rigid resin plate that is difficult to elastically deform, the deformation of the holding plate is small even when the holding pressure of the pachinko ball is increased. Since the contact area with the abrasive material does not increase, the rise in friction can be reduced, so that it is difficult to cause stagnation due to the increase in friction in the ball path of the pachinko ball, so that ball biting does not occur. It has the following characteristics.
[0004]
[Patent Document 1]
JP-A-11-276709 (page 2-3, FIG. 3)
[0005]
[Problems to be solved by the invention]
However, in the conventional lifting and polishing apparatus in which the holding plate is formed of a high-rigidity resin plate, the use of a high-rigidity resin plate that is difficult to be elastically deformed is used for the holding plate so that ball biting due to the elastic deformation of the holding plate does not occur. However, there is a problem that it is not possible to sufficiently cope with measures to prevent ball jam due to causes other than elastic deformation, for example, depending on the speed of the lifting belt, the amount of ball swallowing flowing into the lifting polishing device. In such a case, there is a problem that in such a case, there is a risk that the pachinko balls conveyed in close contact with each other may bite the pachinko balls being conveyed and the lifting belt may be in a restrained state. That is, when the speed of the lifting belt of the lifting polishing device is lower than the speed of the pachinko balls flowing into the ball swallowing opening of the lifting polishing device, the pachinko balls are transported upward in close contact. When the pachinko balls are in the closely contacted ball-butting state, the contacting outer peripheries rub against each other in the opposite directions to act as a brake, and thus act as a load applied to the lifting belt. If the number of balls is small and the lifting power exceeds the brake, the lifting belt will not stop. However, when a certain limit is exceeded, the braking will exceed and the lifting belt will stop. Such a problem is considered to be a problem that occurs not only in the lift polishing apparatus but also in other transport polishing apparatuses.
[0006]
In view of the above problems, the present invention can be applied not only to the lift polishing device but also to other transport polishing devices, regardless of the speed of the transport belt. An object of the present invention is to provide a new ball-feeding-amount control device of a new transport polishing device capable of transporting while pachinko balls are polished without being bitten by preventing the pachinko balls from being transported in a close contact state.
[0007]
[Means for Solving the Problems]
The present invention has been made to solve the above-mentioned problems, and the means of the present invention taken for solving the problems and the operation thereof are as follows.
[0008]
According to the first aspect of the present invention, the pachinko ball is formed by an endless belt along a guide groove which forms a pachinko ball conveying passage provided in the round guide member and a guide member connected to the downstream side of the round guide member. In the pachinko ball conveying and polishing apparatus for conveying a pachinko ball, one of the guide grooves has a cross-sectional shape as a guide groove that makes two-point contact with the pachinko ball, and the pachinko ball swallowing amount suppression unit on the upstream side of the conveying path. And a guide groove having a cross-sectional shape in which the other guide groove is in one-point contact with the pachinko ball. suggest.
[0009]
(Operation) With this configuration, in the guide groove forming the pachinko ball transfer passage of the pachinko ball transfer and polishing device, the one guide groove having a cross-sectional shape that makes two-point contact with the pachinko ball is provided in the ball swallowing amount suppression unit, After passing through the ball swallowing amount suppressing portion having the two-point contact guide groove, the pachinko ball is continuously connected to the other guide groove having the normal cross-sectional shape that makes one point contact with the pachinko ball, The belt allows the pachinko ball and the pachinko ball to be conveyed while maintaining an interval where they do not come into contact with each other, thereby preventing the occurrence of ball bite and preventing the problem that the conveyance belt of the pachinko ball conveying / polishing device becomes bitten and becomes confined. be able to.
[0010]
According to a second aspect of the present invention, in the ball swallowing amount suppressing device of the pachinko ball conveying and polishing apparatus according to the first aspect, the round guide member is disposed below the pachinko ball conveying and polishing apparatus, and the guide member is connected to the round guide member. The present invention proposes a ball swallowing amount suppressing device of a pachinko ball conveying and polishing device that is connected to the upper part of the pachinko ball and vertically conveys the pachinko ball by the endless belt along the guide groove.
[0011]
(Operation) With this configuration, in the pachinko ball conveying and polishing apparatus for conveying a pachinko ball in the vertical direction, the one guide groove having a cross-sectional shape that makes two-point contact with the pachinko ball as a guide groove that forms a conveying path for the pachinko ball. Is provided in the ball swallowing amount suppressing portion, and after passing through the ball swallowing amount suppressing portion having the two-point contact guide groove, the pachinko ball is connected to the other guide groove having a normal cross-sectional shape in one-point contact with the pachinko ball. The pachinko balls can be vertically transported by the conveyor belt while keeping the pachinko balls and pachinko balls out of contact with each other. It is possible to prevent a trouble in which the belt is caught by a ball and becomes in a restrained state.
[0012]
According to a third aspect of the present invention, in the ball swallowing amount control device of the pachinko ball conveying and polishing apparatus according to the first aspect, the rounded guide member and the guide member connected downstream of the rounded guide member are provided. The present invention proposes a ball swallowing amount suppressing device for a pachinko ball conveying and polishing apparatus that conveys a pachinko ball in a horizontal direction or an oblique direction by the endless belt along the guide groove that forms a conveying path for the pachinko ball.
[0013]
(Operation) With this configuration, in the pachinko ball conveying and polishing apparatus that conveys the pachinko balls in a horizontal direction or an oblique direction, the one side that has a cross-sectional shape of a two-point contact with the pachinko balls as a guide groove that forms a conveying path for the pachinko balls. Is provided in the ball swallowing amount suppressing portion, and after passing through the ball swallowing amount suppressing portion having the two-point contact guide groove, the other guide having the normal cross-sectional shape that makes one point contact with the pachinko ball. Since the pachinko balls are continuously connected to the grooves, the pachinko balls can be conveyed in a horizontal or diagonal direction while maintaining an interval where the pachinko balls do not come into contact with the conveying belt, thereby preventing the occurrence of ball biting, and It is possible to prevent a trouble in which the conveyance belt of the conveyance polishing device is caught by a ball and is in a restrained state.
[0014]
According to a fourth aspect of the present invention, in the ball swallowing amount suppressing device of the pachinko ball transferring and polishing apparatus according to any one of the first to third aspects, the one guide groove of the pachinko ball swallowing amount suppressing unit is transferred by the round guide member itself. We propose a ball swallowing amount control device for a pachinko ball conveying and polishing device placed in a passage.
[0015]
(Operation) With this configuration, the guide groove of the pachinko ball of the pachinko ball conveying and polishing apparatus is configured such that the one guide groove of the ball swallowing amount suppressing portion, which has a cross-sectional shape that makes two-point contact with the pachinko ball, is connected to the round guide member itself. On the downstream side after passing through the ball swallowing amount suppressing portion having the two-point contact guide groove, it is connected to the other guide groove having a normal cross-sectional shape which makes one point contact with the pachinko ball. Since the pachinko ball and the pachinko ball can be conveyed by the conveying belt while keeping the interval such that the pachinko ball does not come into contact with the pachinko ball, the occurrence of ball jam is prevented, and the conveying belt of the pachinko ball conveying and polishing apparatus causes the ball to be jagged and becomes constrained. Trouble can be prevented.
[0016]
According to a fifth aspect of the present invention, in the ball swallowing amount suppressing device of the pachinko ball conveying and polishing apparatus according to any one of the first to third aspects, the one guide groove of the pachinko ball swallowing amount suppressing unit is moved from the round guide member to the guide. The present invention proposes a ball swallowing amount control device for a pachinko ball conveying and polishing device placed in a section of a conveying passage extending over a member.
[0017]
(Operation) With this configuration, in the pachinko ball guide groove of the pachinko ball conveying and polishing apparatus, the ball swallowing amount suppressing portion having the one guide groove having a cross-sectional shape that makes two-point contact with the pachinko ball is formed from the round guide member. The two-point pachinko ball guide groove is placed in a section of the conveying path, and on the downstream side after the passage of the ball swallowing amount suppressing portion of the two-point contact pachinko ball guide groove, the other of the normal cross-sectional shape that makes one-point contact with the pachinko ball The pachinko ball and pachinko ball can be conveyed by the conveyor belt while maintaining the interval where they do not come into contact with each other. It is possible to prevent a trouble that the ball is bitten and is in a restrained state.
[0018]
[Embodiment of the present invention]
Hereinafter, embodiments of the present invention (hereinafter, appropriately referred to as “the present embodiment”) will be described with reference to the drawings. FIG. 1 is a front view (a) and a side view (b) of a pachinko ball lifting and polishing apparatus provided with a pachinko ball guide member. FIG. 2 is a front view showing a state in which a door portion of the pachinko ball lifting and polishing apparatus shown in FIG. 1 is opened. FIG. 3 is a sectional view taken along line AA of the pachinko ball lifting and polishing apparatus shown in FIG. FIG. 4 is an enlarged side view showing the round guide member. FIG. 5 is a perspective view of the round guide member shown in FIG. FIG. 6 is an enlarged view of a guide groove cross section of the pachinko ball lifting and polishing apparatus. FIG. 7 is an enlarged view of a section of a polishing guide groove of the pachinko ball lifting and polishing apparatus shown in FIG. FIG. 8 is an explanatory diagram of pachinko ball movement for explaining the operation of the pachinko ball polishing apparatus. FIG. 9 is a plan view of the guide member. FIG. 10 is a side view of the guide member.
[0019]
(Schematic structure of pachinko ball lifting and polishing machine)
With reference to FIGS. 1 to 3, a schematic configuration of a pachinko ball lifting and polishing apparatus 1 (hereinafter, simply referred to as “pumping and polishing apparatus 1”) which is an application example of a guide member described below will be described. The pumping and polishing apparatus 1 generally includes a base 3 installed on the floor and a pumping tower 5 standing upright from the base. A door 7 (see FIG. 2) is hingedly connected to the front of the lifting tower 5 to open and close. A guide member 11 and a polishing cloth 13 used as an abrasive are provided inside the pumping tower 5 so that the pumping belt 15 can pass therethrough. Reference numeral 17 shown in FIG. 3 indicates a guide roller for guiding the lifting belt 15, and a plurality of the guiding rollers 17 are provided at predetermined intervals in the length direction of the lifting belt 15. The detailed structure of each member will be described in the following sections.
[0020]
(Structure of lifting belt)
As shown in FIGS. 1 and 2, the lifting belt 15 is an endless belt stretched by a driving roller 21 and a driven roller 23, and is configured to rotate using a motor 25 as a driving source. Further, it passes through the inside of the lifting tower 5 on the outward path viewed from the drive roller 21 and passes through the inside of the belt cover 27 on the return path. The lifting belt 15 has a conveying surface 15a (see FIG. 3) that comes into contact with the pachinko balls to be conveyed, and has sufficient elasticity to apply a pressing force to the pachinko balls. The material forming the lifting belt 15 is generally a synthetic rubber, but may be a material other than the synthetic rubber (for example, a cloth material or a synthetic leather material) or a composite thereof.
[0021]
(Guide member structure)
The guide member 11 shown in FIG. 3 is made of a material capable of applying a sufficient pressing force to a pachinko ball to be conveyed together with the lifting belt 15. As a suitable material therefor, for example, a metal or an appropriate There are synthetic resin materials with hardness. More specifically, there is a simple substance or a composite of artificial marble or epoxy resin using acrylic resin as a base material. The guide member 11 has a guide surface 11a facing the transport surface 15a of the lifting belt 15, as shown in FIG. The guide member 11 is configured by a wide guide component having a plurality of polishing guide grooves 31 described later, or is configured by connecting a plurality of guide components arranged in parallel by a connecting means such as a screw member. is there.
[0022]
On the guide surface 11a side of the guide member 11, there is formed a polishing guide groove 31 extending along the transport direction of the pachinko balls. The polishing guide groove 31 constitutes a guide groove as a pachinko ball conveyance passage. The shape of the polishing guide groove 31 is formed in a groove shape that makes one point contact with the pachinko ball at the groove bottom 31a (see FIG. 7), and is the same as a normal guide groove as a pachinko ball transport passage. . The cross-sectional shape of the polishing guide groove 31 is formed so that a pachinko ball can be partially received via a polishing cloth 13 described later. Since the setting of the number of the polishing guide grooves 31 is made in accordance with circumstances such as the effective width of the guide member 11 and the number of pachinko balls to be lifted, there is no problem in increasing or decreasing the number as long as circumstances allow.
[0023]
(Structure of polishing cloth)
The polishing cloth 13 shown in FIGS. 3 and 4 is not limited in its form or material as long as it can be mounted on the guide surface 11a of the guide member 11 and can polish pachinko balls. In the present embodiment, a durable cotton cloth is used as the polishing cloth, and is configured to be detachably provided so that it can be easily replaced when it becomes dirty.
[0024]
(Structure of the round guide member at the pachinko ball inflow section)
Next, with reference to FIGS. 4 and 5, a description will be given of the R-shaped guide member 41 that constitutes the pachinko ball inflow portion of the lifting and polishing apparatus 1. When the lifting belt 15 driven by the driving roller 21 and the driven roller 23 (not shown) moves to the lower end, the round guide member 41 sandwiches the pachinko balls between the lifting belt 15 and the conveying belt to move in the conveying direction. It is a member for guiding the guide. The round guide member 41 includes a round bottom plate 43 and an upper end base 45 connected to the lower end of the guide member 11. On the lift belt 15 side of the round guide member 41, a round guide groove 46 is formed one by one. The round guide groove 46 constitutes a guide groove as a pachinko ball conveyance passage, and is provided with a pachinko ball for each polishing guide groove 31 of the guide member 11 located on the downstream side of the pachinko ball conveyance passage. The balls are formed so as to be able to guide the balls in one column. Details such as the shape of the round guide groove 46 will be described later. The round guide member 41 is made of the same synthetic resin as the guide member 11, and conveys the received pachinko balls while pressing the pachinko balls with the pressing force of the lower end of the lifting belt 15. That is, the inserted pachinko balls are guided in the direction of the linear guide member 11 while being sandwiched between the lifting belt 15 wound around the drive roller 21 and the round guide member 41.
[0025]
In addition, when the R-shaped guide member 41 is configured to be divided into a plurality of members and the R-shaped guide portion receives a pressing force, the individually-divided R-shaped guide portion is separated from the other R-shaped guide portions. Independently, it may be configured to be elastically deformable by, for example, a coil spring. With such an elastically deformable configuration, even if a partial imbalance occurs in the pressing force received by each of the R-shaped guide portions from the lifting belt 15, the R-shaped guide portions that have received the pressing force are independent. Since it corresponds to the pressing force, the unbalance does not adversely affect the entire R-shaped guide member 41. In this case, the coil spring may be omitted if the elastic return force of each of the rounded guide portions is sufficient.
[0026]
The pachinko balls guided by the round guide member 41 and the lifting belt 15 are received in the polishing guide groove 31 of the guide member 11 via the abrasive 13, and are lifted and polished by the pressing force of the lifting belt 15. . The abrasive 13 is interposed in the polishing guide groove 31 from a polishing cloth introduction port 14 formed at a connection portion between the end of the round guide member 41 and the lower end of the guide member 11, and a pachinko ball that moves upward by lifting is provided. It is stretched so as to be polished, and is configured to be drawn out of the polishing guide groove 31 from the upper end of the guide member 11. The new polishing surface of the polishing material 13 is drawn out from the polishing cloth introduction opening 14 at the lower end of the guide member 11 into the polishing guide groove 31 by pulling down the polishing material 13 pulled out from the upper end of the guide member 11. It is configured as follows.
[0027]
(Structure of the ball swallowing amount suppression unit in the pachinko ball inflow section)
With reference to FIGS. 4 and 5, the structure of the ball swallowing amount suppression unit of the pachinko ball inflow unit will be described. In the present embodiment, the structure of the ball swallowing amount suppressing section has one feature. As shown in FIG. 4, a round-shaped guide member 41 constituting a pachinko ball inflow portion is provided with a ball drinking port 42. The ball swallow opening 42 is a swallow hole for a pachinko ball that conveys a large amount of pachinko balls discharged and collected from a pachinko machine (not shown) to the lifting and polishing apparatus 1. The entrance portion is formed to have a slightly receding downward slope so that the pachinko balls can easily flow into the round guide groove 46 at the ball intake port 42. After the pachinko balls flow into the round guide grooves 46, the pachinko balls are rolled and conveyed while being pinched between the lifting belt 15 by the guide grooves formed in a single column, and then. It is transported to the guide member 11 connected to the round guide member 41.
[0028]
As shown in FIG. 4, the ball swallowing amount suppressing portion of the present embodiment is formed in a section extending from the ball swallowing opening 42 of the round guide member 41 to the introduction portion of the guide member 11. Note that the ball swallowing amount suppressing portion may be formed in a section from the ball swallowing opening 42 to the end of the upper end base 45 of the round guide member 41.
[0029]
Next, a specific structure of the guide groove of the pachinko ball constituting the ball swallowing amount suppressing unit will be described. As shown in FIG. 6, the guide groove forming the ball swallowing amount suppressing portion includes the round guide groove 46 of the round guide member 41 and the guide groove 36 of the guide portion of the guide member 11. Alternatively, as described above, it may be constituted solely by the round guide groove 46 of the round guide member 41. The cross-sectional shapes of the round guide groove 46 and the introduction guide groove 36 are formed in such a manner that the opening of the groove surface is gently widened in order to make it easy to receive pachinko balls, and the groove main body (in the figure, reference numeral 36 or (Shown at 46) is substantially semicircular and formed slightly smaller in diameter than the diameter of the pachinko ball. For this reason, the pachinko ball is formed so as to be in contact with the upper part of the groove main body in the round guide groove 46 and the introduction guide groove 36, and the bottom of the groove main body is configured not to contact the pachinko ball. Have been. Therefore, in the portion of the round guide member 41 extending from the ball inlet 42 to the upper end base 45, the pachinko ball contacts at two points between the two side surfaces of the upper portion of the groove main body of the round guide groove 46. The sheet is conveyed by the lifting belt 15 while being suspended in the air. Subsequently, the pachinko balls are conveyed in a two-point contact suspended state to the introduction guide groove 36 extending across the introduction portion of the guide member 11 connected to the round guide groove 46, and further the polishing guide groove 31 on the downstream side It is transported to In addition, the form of the groove main body portion of the round guide groove 46 and the introduction guide groove 36 is not limited to a diameter smaller than that of the pachinko ball, but a sub-groove whose bottom does not contact the pachinko ball. It may be formed. The point is that the pachinko ball is supported in a suspended state with two points of contact between the two side surfaces of the upper portion of the groove main body portion of the round guide groove 46 and the introduction guide groove 36 as described above. It is good.
[0030]
As described above, when the pachinko balls in a suspended state supported at two points between the two side surfaces of the groove main body are conveyed while being guided by the round guide groove 46 and the introduction guide groove 36 by the lifting belt 15, The speed of the transfer (center trajectory) of the pachinko ball itself due to the rolling is a speed relatively lower than the speed of the lifting belt 15. That is, the transfer speed by the rolling of the pachinko ball in the suspended state as described above is higher than the speed of the pachinko ball itself when the pachinko ball is conveyed while being rolled in contact with the bottom of the groove main body, The rolling contact radius of the pachinko ball is smaller than the radius of the pachinko ball contacting the lifting belt 15 by a smaller amount.
[0031]
Therefore, as described above, the ball swallowing amount suppressing portion of the present embodiment supports the pachinko ball in a suspended state between the two side surfaces of the upper portion of the groove main portion in the round guide groove 46 and the introduction guide groove 36. It is constituted by a structure having such a form.
[0032]
On the other hand, as shown in FIG. 7, the shape of the polishing guide groove 31 of the guide member 11 is the same as that of the normal form formed with a slightly larger diameter than the pachinko ball. For this reason, in the guide member 11, the pachinko balls are configured to be conveyed by the lifting belt 15 while contacting the groove bottom 31a of the polishing guide groove 31 in a one-point contact state.
[0033]
(Basic concept of ball swallowing amount control section)
As described above, the basic concept of the ball swallowing amount suppression unit for pachinko balls is that when the belt driving speed by the lifting belt is constant, the ball is swaged from the ball swallowing opening of the pachinko balls. Until the process start section, the speed of pachinko ball transfer by the lifting belt is relatively slower than the speed in the lifting polishing step, and from the lifting polishing step after passing this section, By increasing the transport speed, a space is provided between the pachinko balls being transported. This is to prevent the pachinko balls from being bitten during transportation. In other words, as shown in FIG. 8, the movement distance of the center Pa of the pachinko ball P per rotation between the outer peripheral point P1 when the pachinko ball P makes one point contact and the point P2 when it makes two points contact. L is the moving distance L1 of the pachinko ball P having the contact radius (R) when the contact distance (R) is the point where the moving distance L2 in the case of two-point contact is smaller than the apparent contact radius (r) as shown in FIG. Less than. Therefore, in the transfer by the lifting belt 15 at the same speed, when the pachinko ball P is transferred in a close contact state from the two-point contact transfer state to the one-point contact transfer state, the distance between the pachinko ball P and the pachinko ball P is changed. Are transported in an open state.
[0034]
(Operation of the swallowing amount suppression unit)
Next, the operation of the ball swallowing amount suppression unit that conveys pachinko balls by the lifting belt 15 will be described. FIG. 9 shows the passing state of the pachinko balls in the transport path of the pachinko balls transported by the lifting belt 15 for the ball swallowing amount suppression unit and the subsequent lifting and polishing process. FIG. 9 shows the passing state of the pachinko balls P viewed from the lifting belt 15 side, and the plan view of the guide grooves for the pachinko balls in which the R-shaped guide member 41 and the guide member 11 are continuously connected. Is shown. In the lower part of the drawing, from the groove shape described above, in the ball swallowing amount suppressing portion, the side surfaces of the groove-shaped guide groove 46 and the introduction guide groove 36 that support the pachinko ball P in a two-point contact suspended state are shown. The pachinko ball traveling trajectory T2 has two lines, and in the lifting polishing process after the ball swallowing amount suppressing section, the pachinko ball traveling trajectory T1 at the groove bottom 31a of the polishing guide groove 31 that supports the pachinko ball P in a one-point contact state. Are represented as Article 1. As described above, in the ball swallowing amount suppression unit, the movement speed of the pachinko ball itself is lower than that of the two-strip portion even when the lifting belt 15 is at the same speed when the pachinko ball traveling trajectory has two sections and one section. Also, the speed of the one section is faster. Therefore, the pachinko balls P are conveyed in a close contact state where the moving speed is low and the pachinko balls P are slow even at the same speed in the ball swallowing amount suppressing portion in the two-line portion shown in FIG. As a result, the sheet is conveyed with an interval as shown in the figure.
[0035]
By the ball swallowing amount suppression unit of the present embodiment, the carrier is conveyed by the lifting belt 15 in the conveyance passage after flowing into the ball swallowing opening 42 of the lifting and polishing apparatus 1 and passing through the ball swallowing amount suppression unit. As shown in FIG. 10, the speed of the pachinko balls P is set such that the pachinko balls P and the pachinko balls P have an interval regardless of whether the speed of the lifting belt 15 of the lifting and polishing apparatus 1 is high or low. It will be carried upward. For this reason, in the lifting and polishing step shown in the upper part of FIG. 10, the pachinko ball P is transported while maintaining the separated state by eliminating the close contact state (the lower part in FIG. 10) in the ball swallowing amount suppression unit. It becomes something. Therefore, there is no contact between the pachinko balls, and the above-mentioned factor causing the brake is eliminated, and the danger that the lifting belt is stopped by being caught by the balls can be reliably avoided.
[0036]
As a modified example of the present embodiment, the structure of the guide groove of the ball swallowing amount suppression unit can be applied to another transport polishing apparatus instead of the lifting polishing apparatus 1. As such a transport polishing apparatus, unlike the above-described arrangement of the vertical polishing apparatus 1 which is vertically disposed, the vertical polishing apparatus 1 is disposed in a horizontal direction, an oblique direction, or the like so that pachinko balls can be transported. It is conceivable that the configuration is as follows. In this case, the transporting and polishing apparatus employs a two-point contact guide groove and a one-point contact guide groove that form the pachinko ball transport path of the lifting and polishing apparatus 1 described above, thereby providing various types of pachinko ball transport. For example, it can be installed in place of a supply gutter or a collecting gutter installed in a pachinko island and used for polishing while transporting.
[0037]
【The invention's effect】
The present invention has the following effects.
1. According to the present invention, in the guide groove forming the pachinko ball transfer passage of the pachinko ball transfer and polishing device, one of the guide grooves has a cross-sectional shape as a guide groove that makes two-point contact with the pachinko ball and the ball swallowing amount. The other guide groove is continuously connected to the downstream side of the ball swallowing amount suppressing unit, and after passing through the ball swallowing amount suppressing unit having the two-point contact guide groove, the pachinko ball is connected to the pachinko ball. Since the pachinko balls are continuously connected to the guide groove having a normal cross-sectional shape that makes point contact, the pachinko balls can be conveyed by the conveying belt while maintaining the interval where they do not come in contact with each other. Further, it is possible to prevent a trouble in which the conveying belt of the pachinko ball conveying / polishing device is bitten by a ball and is in a restrained state.
2. In addition to the above, the conveying and polishing apparatus itself has a ball swallowing amount suppressing unit, so that the amount of balls flowing into the conveying and polishing apparatus can be automatically determined and the amount of pachinko ball conveyed can be suppressed. This can reliably prevent the ball from being caught during the conveyance.
3. In addition to the above, the shape of the guide groove of the ball swallowing amount suppressing portion has a ball receiving pressure portion of two-point contact, so that even if the pinching pressure of the pachinko ball is increased by the transport belt, the surface pressure of the ball receiving pressure portion is reduced. Can be lowered. From this fact, it is possible to realize a transport polishing apparatus that avoids a stop trouble due to a biting of the transport polishing apparatus by a ball and maintains the maximum transport amount of the transport polishing apparatus.
4. In addition to the above, it is not necessary to excessively increase the speed of the transport belt, and the required minimum motor and operating speed can be obtained. Therefore, energy saving, a longer service life of the mechanism section, and noise reduction can be achieved.
5. In addition to the above, since the function of suppressing the ball swallowing amount can be realized only by the difference in the groove cross-sectional shape, it is not necessary to have extra parts or mechanical parts, and space is saved.
6. Furthermore, the interval between the pachinko balls to be conveyed can be set to a desired interval by appropriately adjusting the shape of the two-point contact groove of the guide groove of the ball swallowing amount suppressing portion. Can be adjusted.
[Brief description of the drawings]
FIG. 1 is a front view and a side view of a pachinko ball fry polishing device.
FIG. 2 is a front view showing a state where a door portion of the pachinko ball lifting and polishing apparatus is opened.
FIG. 3 is a sectional view taken along line AA of the pachinko ball lifting and polishing apparatus.
FIG. 4 is an enlarged side view showing a round guide member.
FIG. 5 is a perspective view of a round guide member.
FIG. 6 is an enlarged view of a guide groove section of the pachinko ball lifting and polishing apparatus.
FIG. 7 is an enlarged view of a section of a polishing guide groove of the pachinko ball lifting and polishing apparatus.
FIG. 8 is an explanatory diagram of pachinko ball movement.
FIG. 9 is a plan view of a guide member.
FIG. 10 is a side view of the guide member.
[Explanation of symbols]
1 Pachinko ball lifting and polishing equipment
3 Base
5 lifting tower
7 Door
11 Guide member
11a Guide surface
13 Abrasive cloth (abrasive)
14 Polishing cloth inlet
15 Lifting belt
15a Transfer surface
17 Guide roller
21 Drive roller
23 driven roller
25 motor
27 Belt cover
31 Polishing guide groove (single point contact guide groove)
31a Groove bottom
36 Introductory guide groove (2-point contact guide groove)
41 R-shaped guide member
43 Round bottom plate
45 Top Base
46 R-shaped guide groove (two-point contact guide groove)
Pachinko ball travel trajectory of T1
Pachinko ball travel trajectory of T2 2
P Pachinko ball

Claims (5)

A pachinko ball that conveys pachinko balls by an endless belt along a guide groove that forms a conveying path for pachinko balls provided in a round guide member and a guide member that is connected to the downstream side of the round guide member. In the transport polishing apparatus, one of the guide grooves is arranged in the pachinko ball swallowing amount suppressing portion on the upstream side of the transport path as one of the guide grooves having a cross-sectional shape that is in contact with the pachinko ball at two points. A ball swallowing amount suppressing device for a pachinko ball conveying / polishing device, wherein the guide groove is continuously disposed downstream of the pachinko ball swallowing amount suppressing unit as a guide groove having a cross-sectional shape that makes one point contact with a pachinko ball. The round guide member is disposed below the pachinko ball conveying and polishing apparatus, the guide member is connected above the round guide member, and along the guide groove, the pachinko ball is vertically moved by the endless belt. 2. The ball swallowing amount suppressing device of the pachinko ball conveying / polishing device according to claim 1, wherein the ball is conveyed to the polishing machine. Along the guide groove that forms a pachinko ball conveyance path provided in the round guide member and the guide member connected to the downstream side of the round guide member, the endless belt is used to move the pachinko ball. The ball swallowing amount suppressing device of the pachinko ball conveying and polishing device according to claim 1, wherein the ball is conveyed in a horizontal direction or an oblique direction. 4. The ball swallowing amount control of the pachinko ball conveying and polishing apparatus according to claim 1, wherein a guide groove of the pachinko ball swallowing amount suppressing unit is disposed in a conveying path of the round guide member itself. apparatus. The pachinko ball conveying and polishing apparatus according to any one of claims 1 to 3, wherein a guide groove of the pachinko ball swallowing amount suppressing portion is disposed in a section of a conveying path extending from the round guide member to the guide member. Ball swallowing amount control device.

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