JPH0351024Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is based on the falling position difference between the ball x falling from the falling groove that gradually expands diagonally in the downstream direction and the small ball x _-1 with a smaller diameter. This relates to a ball classification device that guides the ball further downstream, and bounces the small ball x _-1 , which falls faster than the ball x, back upstream to sort it, and is used for classifying pachinko balls and other balls. .

(Prior technology) Drilling grooves that gradually expand diagonally in the downstream direction are drilled in the flow plate, and only small balls with a small diameter are allowed to fall from the grooves, while balls with large diameters are not allowed to fall from the grooves and continue downstream. A device for classifying and sorting spheres by guiding them is already known, but it allows balls with large diameters and small spheres with small diameters to fall together, and causes a difference in the falling position between the front and back due to the slope that widens in the downstream direction of the falling groove. No classification device has been developed that uses this phenomenon to bounce back small balls with a small diameter as they fall and guide and sort out balls with a large diameter in the downstream direction.

(Problems to be solved by the present invention) The present invention escapes from the conventional classification concept by allowing both large-diameter balls and small-diameter small balls to be sorted by dropping them from the drop groove, thereby enabling high-speed classification. The challenge is to make this happen.

(Means for Solving the Problems) The purpose of the present invention is to make the problem described in the previous section more concrete, and the purpose of the present invention is to gradually expand the width of the flow plate 1 in the downstream direction, and at the downstream end 7, a sphere x A drop groove 6 is bored that approximately matches the diameter of An apparatus for classifying spheres characterized in that a rebound edge 10 is formed on the starting end side surface of the plate 9 in the upstream direction, with which the small ball x _-1 that falls from the falling groove 6 in advance of the ball x collides with. It is.

A preferred embodiment of the invention will now be described.

(Example) In Fig. 1, 1 indicates the first position slightly lowered in the downstream direction.
A falling plate 4 and 5 are side walls on both sides of the falling plate 1, and have an interval that allows the ball x to flow down a little more gently. . A falling groove 6 which sequentially widens in the downstream direction is provided on the second inclined surface 3 of the falling plate 1 in contact with one side wall 4. The falling groove 6 has a structure in which a ball x _-1 with a slightly smaller diameter and a ball x with a predetermined diameter are dropped with a slight difference in position, and the portion in contact with the side wall 4 is linear. A substantially perpendicular step portion 8 is formed by bending the downstream end 7 of the falling groove 6 into which the ball x falls, and a support guide plate 9 is provided below the downstream end 7 to guide the falling ball x further downstream. A rebound edge 10 is formed on the substantially vertical surface of the starting end of the support guide plate 9 in the upstream direction to hit the small ball x _-1 falling before the ball x from the falling groove 6 and bounce it back in the upstream direction.

In the above configuration, the ball x flowing down the second inclined surface 3 is caused to fall at the downstream end 7 of the falling groove 6, and the ball having inertia of flowing down is received by the support guide plate 9 and guided further downstream. When the small ball x _-1 flows down, it falls from the falling groove 6 at a position before the ball x falls due to the difference in diameter, and even if there is inertia in the flow, it bounces back and hits the edge 10. The ball x and the small ball x -1 are bounced back and further dropped, and the above action causes the ball x and the small ball x _-1 to flow downstream by the support guide plate 9, fall from the drop groove 6, and hit the bounce back edge 10. It is further classified into those that fall.

FIG. 4 shows a ball sending box 11 of a pachinko machine equipped with the classification device of the present invention, in which an extension 1a of a falling plate 1 is used as a receiving plate on the bottom of a feeding port 12 for pachinko balls x in the front. A ball guide 13 is provided on the support guide plate 9 to convert the ball x downward, and the ball x supplied to the starting end of the rail 19 is hit by the firing mallet 18. In relation to the release, a ball receiving piece 15 is provided which rotates by a small angle in the arrow direction together with the support shaft 17 and then returns to the vertical position shown in the figure, and as it rotates by a small angle, the ball x is received by the support shelf 16 and returns to the vertical position. At the same time, the ball x is sent out from the opening 14 on the side of the ejection rail 19, and the ball guide 13 and the following are already used and known.

The batted ball sending box 11 shown in FIG. 4 sends one ball sent into the receiving plate (extension part 1a) of the sending port 12 to the falling plate 1 and makes it flow downstream, and the small ball x _- from the falling groove 6. ₁ and a normal ball x with no abnormalities are dropped with a difference in position, and the small ball x _-1 hits the rebound edge 10 and falls further, and the ball x falling from the downstream end 7 of the falling groove 6 is The ball is received by the support guide plate 9 and allowed to flow further downstream, and thereafter a known action of sending the ball to the shooting rail 19 occurs in relation to the hitting action of the shooting mallet 18.

The present invention not only can classify pachinko balls with a regular diameter and irregular balls with a smaller diameter and eject the irregular balls, but can also be used to classify pearl balls, glass pearl imitation balls, etc.

(Function) The functions of the falling groove 6, support guide plate 9, and rebound edge 10 of the present invention are as already explained.

(Effect) The present invention provides a falling groove 6 in which the small ball x _-1 and the ball
The ball x falling from the downstream end ₇ of
Hit 0 and let it fall further to form ball x and small ball x _-1
The ball x _-1 and the ball x fall together through a short section of the falling groove 6, but due to the difference in their falling positions, they are guided further downstream. Since the balls can be classified into falling ones and falling ones, it has the effect of clearly sorting them into two groups by the high-velocity flow of the balls.

[Brief explanation of the drawing]

The accompanying drawings show an embodiment of the present invention, in which Fig. 1 is a partially cutaway perspective view, Fig. 2 is a plan view, Fig. 3 is a cutaway end view taken along line A in Fig. 2, and Fig. 4 is an illustration of the device worn by the present invention. It is a front view of the batted ball sending box 11 of the pachinko machine. 1...Drop plate, 6...Drop groove, 7...Downstream end,
9...Brace guide plate, 10...Spring back edge.

Claims (1)

[Scope of utility model registration request] A drop groove 6 is formed in the flow plate 1 so as to gradually widen in the downstream direction so as to approximately match the diameter of the ball x at the downstream end 7, and a ball x falling from near the downstream end 7 is placed below the downstream end 7. Further, a support guide plate 9 is provided to guide the downstream.
Classification of spheres characterized in that a rebound edge 10 is formed on the starting end side surface of the support guide plate 9 in the upstream direction, on which the small ball x _-1 falling from the falling groove 6 in advance of the ball x collides. Device.