JPS62168582A - Selector for spherical article - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a sorting device for sorting spherical articles of different sizes according to their sizes.

[Conventional technology]

For example, when lapping and finishing spherical objects such as ball control balls and ceramic balls, many spherical objects are polished at the same time, so if there are differences in size, it is not possible to process objects with small diameters. Therefore, it is necessary to select the sizes in advance so that the diameters of the spherical articles to be wrapped at the same time are the same.

In addition, in ball games where a large number of steel balls are used, the steel balls initially have a certain dimensional accuracy, but as they are used, they wear out and their dimensions become smaller, and furthermore, steel balls of different diameters may be mixed in. The occurrence of rust increases the variation in the dimensions of the steel balls, which hinders the smooth progress of ball games, so it is necessary to sort the balls to remove balls of different diameters.

As a conventional spherical article sorting device, Figs.
As shown in the figure, two rail-shaped shoes), 1.1 are arranged in a downward-sloping manner, and the opposing interval W between both chutes 1, 1 is formed in a stepped manner, with the distal end becoming wider. ,1
There is a rail method in which the spherical articles A rolled along the gap are dropped and sorted at intervals corresponding to the diameter, and as shown in FIGS. There is a roll method in which the spherical articles A are arranged so that the interval W widens toward the tip with an inclination of , and the spherical articles A are rolled on both rotating rolls 2 and 2 and are dropped and sorted at an interval corresponding to the diameter.

[Problem that the invention seeks to solve]

By the way, the former rail method has a structure in which spherical objects are transferred between two chutes, so the spherical objects get stuck between the chutes, resulting in poor flow and continuous sorting. There are problems in that it is difficult to adjust the dimensions of W and the selection accuracy is poor.

In addition, in the latter roll method, the rolls 2°2 on both sides are
Since sorting is carried out by rotating as shown in Fig. 5, spherical articles are not bitten between the rolls, but there is a problem that the transfer of spherical articles is poor and the sorting speed is slow.

This invention was developed in order to solve the problems of conventional sorting devices as described above, and the purpose is to provide a high-speed sorting device with high sorting accuracy and large throughput. It is.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention provides a groove-shaped lane for transferring one spherical article in two directions such that the tip is downward with respect to the longitudinal rolling direction and downward to one side with respect to the width direction. The spherical article is tilted, and a take-out hole for the spherical article is provided at a position offset to the other side in the middle of this lane, and the spherical article is placed in the position directly above the take-out hole in the lane 2 in the upward direction relative to the spherical article transferred on the lane. The rotating rolls are arranged parallel to the bottom of the lane with the take-out hole side facing toward the tip of the lane (slanting downward).

[Effect]

When a spherical article is fed onto a groove-shaped lane while the rolls arranged diagonally across the lane are rotated, the spherical article is guided by two surfaces, the bottom surface of the lane and the side wall on the down side, and is directed toward the tip. In the case of a spherical article whose diameter is smaller than the distance between the bottom of the lane and the bottom of the roll, it passes under the roll and rolls on the downstream side.

Spherical articles having a diameter larger than the above distance are prevented from rolling by coming into contact with the lower part of the roll, and are sent to the side of the lane toward the downward slope of the rotating roll and are discharged by falling into the take-out hole. According to "C", based on the distance set between the bottom surface of the lane and the bottom surface of the roll, larger objects are sorted into the take-out hole, and smaller objects are sorted downstream of the lane.

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 1 to 10 of the accompanying drawings.
This will be explained based on the diagram.

As shown, lane 1 for rolling spherical article A
The lanes 1 are formed in a groove shape with a U-shaped cross section, and a large number of lanes are arranged in parallel at regular intervals. An exit chute 13 is arranged at the right end of the extraction side.

The above lane 11 group has a downward slope at the tip as shown in Fig. 2,
As shown in FIG. 8, it is arranged on the base 14 with an inclination in two directions, with one side in the width direction being downward relative to the horizontal line X+.

Therefore, the spherical article A rolling toward the tip in each lane 11 is guided by two surfaces, the bottom surface 11a and the downward side surface 11b of the lane 11, as shown in FIG. Note that the width of the lane 11 is set so that the maximum diameter of the spherical articles A to be sorted can fit therein, and the depth thereof is shallower than that of the smallest diameter spherical article A to be sorted.

In the middle of each lane 11, a take-out hole 15 for the spherical article A is provided at a position offset to the upper side in the width direction so as to pass through the top and bottom. 16 are arranged so as to diagonally intersect with lane 11.

As shown in FIG. 9, the extraction hole 15 is provided so as to open at the bottom surface 11a of the lane 11 at a position offset to the upward slope side in the width direction from the center line of the lane 11, and is rotated along the lane 11. The moving spherical article A is prevented from falling by itself.

The rotating roll 16 has a bottom surface 11 for the lane 11 group.
When parallel to a, as shown in FIG. are doing.

The lower part of this rotating roll 16 and the bottom surface 1 in the lane 11
1a is the criterion for sorting the spherical articles A, and if the diameter of the spherical article A rolling on the lane 11 is equal to or larger than this interval H, the spherical article A comes into contact with the lower part of the rotating roll 16. Transfer is prevented, and this roll 16 opens the extraction hole 15.
i will be sent away.

Further, when the diameter of the spherical article A is smaller than the above-mentioned interval H,
Passing through the rotating roll 16 without contacting the lane 11
The upper part rolls downstream.

In order to adjust the distance H formed between the rotating roll 16 and the bottom surface 11a of the lane 11 according to the sorting conditions, as shown in FIGS. 4 to 6, both ends of the rotating roll 16 are
It is rotatably supported by vertical adjustment mechanisms 17 provided on both sides of the lane 11 group.

The vertical adjustment mechanism 17 has a shaft 21 protruding from one end of a bearing 18 that supports the end of the rotating roll 16, which passes vertically through the pedestal 20 of the support member 19-1. The upper end of the arranged upper wedge member 22i and the lower shaft 21 are connected to support member 19.
A stabilizing spring 23 is provided between the pedestal 20 and the upper wedge member 22, and when the lower wedge member 24 in the form of a fork is moved using the adjustment bolt 25, the vertical position of the rotating roll 16 changes. After adjustment, the upper wedge member 22
It is fixed with a tightening bolt 26 screwed into the pedestal 201.

In the case shown in the figure, the sorting device configured as described above is provided with three outlet holes 15 at the top and bottom of each lane 11, and the spherical articles A are sorted into three types, large, medium, and small, at the same time in each lane 11. The extraction hole 15 in each lane 11 is the first one.
As shown in the figure, the rotating rolls 16 are lined up in an axial direction (for example, in an inclined arrangement along this direction, and the upper and lower rotating rolls 16 and 16 are connected to an intermediate shaft 27 driven by a motor M, a belt, and a pulley. Further, a loosening roll 28 parallel to the rotary roll 16 is located directly at the upper end of the lane 11 group and is arranged in a state in which it can be freely adjusted downward by 1" in the same way as the rotary roll 16 and is interlocked with the intermediate shaft 27. has been done.

The distance H between the stripping roll 28 and the bottom surface 11a of the lane 11 in the vertical rotation roll 16.16 is set so that the higher the roll is, the larger the distance H is, and the lower end of the guide gutter 29 provided directly below the upper extraction hole 15 is A storage box 30 for large-diameter spherical articles A is arranged, and medium-diameter spherical articles A2 that have fallen from the lower take-out hole 15 are guided from above the bottom plate 31 to the exit chute 13 as shown in FIG. As shown in FIGS. 1 and 2, the small-diameter spherical article A3 that has passed is taken out to the side by an inclined guide 32 placed on the floor at the rear end of the lane 11 group, and is placed in the storage box 30 in the G position. ing.

Incidentally, the inclination angles θ and β in the two directions of the lane 11 and the angle α of the rotating roll 16 with respect to the longitudinal direction of the lane may be freely selected depending on the size and material of the spherical article A and the sorting conditions, but a preferable example is , the inclination angles θ and β in the two directions of the lane are both 5°, and the inclination angle of the rotating roll is 45°.
set to °.

Also, the number of lanes 11, take-out holes 15 and rotating rolls 16
The number of sorted types is not limited to what is shown in the diagram.
You can freely increase or decrease it as needed.

The sorting device of the present invention has the above-mentioned configuration, and the motor M is started with the height interval H of the rotary roll 16 from the lane bottom surface adjusted according to the sorting condition G, and the stripping roll 28 and the rotary roll 16 is rotated as shown by the arrow in FIG. 7, and the spherical articles A are randomly thrown onto the chute 12. As shown in the figure, the spherical articles A are loosened flatly by the loosening roll 28, and are placed under the loosening roll 28. The spherical article A that has passed through is transferred into each lane 11, and as shown in FIG. Spherical articles having a diameter smaller than the interval H set at the bottom gate are transferred to the downstream side without contacting the rotating roll 16 as shown in FIG. 5.

A spherical article larger than the above distance comes into contact with the lower part of the rotating roll 16, is guided in the direction of the take-out hole 15 by the rotation and inclination of the roll 16, and is discharged from the lane 11 into the take-out hole 15.

The spherical articles that have passed through the upper rotating roll are sorted again by the lower Oa rolling roll 161, and as a whole are classified into dog, medium, and
They will be sorted according to the size of their necks.

〔effect〕

As described above, according to the present invention, a spherical article is rolled by tilting the lane in two directions, front and back and widthwise, and a spherical article larger than the distance between the rotating roll arranged on the lane and the bottom surface of the lane is rolled on the rotating roll. Since the spherical articles are taken out through the takeout hole on the side of the lane, smooth transfer and sorting of spherical articles can be achieved, and large-scale processing through high-speed sorting is possible.

Furthermore, since the distance between the rotating roll and the bottom of the lane can be adjusted with high precision, highly accurate sorting can be performed.

[Brief explanation of drawings]

FIG. 1 is a plan view of the sorting device according to the present invention, FIG. 2 is a vertical sectional front view of the same, FIG. 3 is a vertical sectional front view showing the relationship between the lower extraction hole and the exit chute in the same, and FIG. 4 is the same as that shown in FIG. 1. Figure 5 is a side view seen from the upstream side of the arrow V-V! in Figure 1. 6 is a vertical sectional view showing the vertical adjustment mechanism of the rotating roll, and FIG. 7 is an operation explanatory diagram showing the state during sorting.
Fig. 8 is an enlarged vertical sectional view showing the relationship between the lane and the rotating roll, Fig. 9 is a plan view of the extraction hole provided in the lane, Fig. 10 is a plan view showing a conventional sorting device, and Fig. 11 is the same front view. 12 is a longitudinal sectional view of the same, FIG. 13 is a plan view showing another example of the conventional sorting device, FIG. 14 is a front view of the same, and FIG. 15 is a longitudinal sectional view of the same. 11 is a lane, 12 is an inlet chute, 13 is an exit chute, 15 is an ejection hole, 16 is a rotating roll, 17 is a vertical adjustment mechanism, A is a spherical article, Patent applicant NCH N Toyo Bearing Co., Ltd. Agent Sickle 1) Sentence 2 Figure 4 o--1 - 12 ``-- M l + Figure G

Claims (1)

[Claims] A groove-shaped lane for rolling spherical articles is tilted in two directions, with the tip descending relative to the longitudinal rolling direction and also descending to one side relative to the width direction, and the lane is offset to the other side in the middle of the lane. A take-out hole for the spherical article is provided in the lane, and a roll that rotates in a direction pushing up against the spherical article rolling on the lane is placed directly above the take-out hole on the lane, parallel to the bottom of the lane, and with the take-out hole side facing toward the tip of the lane. A sorting device for spherical articles arranged in a slope descending from the ground.