JPS6283075A - Selecting net device for vibratory screen - 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) This invention relates to a sorting net device for vibrating sieves aimed at improving sorting efficiency, and relates to the field of manufacturing, sales, and use of sorting net devices. It is.

(Prior Art) A conventional sorting screen device for a vibrating sieve uses a wire mesh 7 (figure a), a blind screen 8 (figure b), or a punching screen 9 as shown in FIG.
(C) is stretched over a frame 10, and vibrations are applied to move the objects on the sorting net for sorting.

(Problems to be Solved by the Invention) In the conventional vibrating sieve sorting net device, the sorting net as shown in FIG. Complete selection was impossible if there was no significant difference in size. In addition, there were cases in which a thin plate-like object to be sorted moved with the other object on it and could not be separated.

(Means for solving the problem) However, in the present invention, a plate for preventing the progress of the objects to be sorted is provided above the sorting net with a certain gap, and the plate is arranged obliquely to prevent the objects to be sorted from moving straight in the direction of movement. By installing this, the above-mentioned conventional problems were solved. The sorting screen of the present invention may be any of the various known screens conventionally used in sieves, such as wire mesh,
In addition to blind nets and punching nets, blind boards, etc. can be used. Further, a predetermined gap is provided between the lower edge of the advance prevention plate and the upper surface of the screen (through which a part of the material to be sorted can pass), and the gap can be adjusted as necessary.

Further, the advance prevention plate is usually provided obliquely protruding from the edge of the sieve frame toward the center, but there are cases where a lid or a crosspiece is installed on the sieve frame and the prevention plate is fixed to this. Further, some of the plurality of advance prevention plates may be attached without gaps (relative to the mesh surface). Furthermore, a large number of advance blocking pieces can be arranged in a staggered manner on the screen surface. The important point is to configure the apparatus so that the objects to be sorted are sorted while meandering on the screen surface, and are also sorted depending on the height of the objects to be sorted.

(Function of the invention) In this invention, since the progress prevention plate for the objects to be sorted is provided obliquely,
The objects to be sorted automatically meander and undergo the sorting action over a relatively long distance.

In addition, since a predetermined gap is provided between the lower edge of the advance prevention plate and the net surface, the objects to be sorted are subjected to a sorting action depending on their height, such as when they are separated when they overlap.

(Example 1) FIGS. 2 and 3 show embodiments of the apparatus of this invention.

A sorting net 2 (a wire net is shown in the figure, but a blind net or a punching net may also be used) is stretched over the frame 1, and above the sorting net 2, a progress prevention plate 3 is placed with a certain gap 4. One end of the progress prevention plate 3 is fixed to the inner surface of the frame 1 so as to be open and oblique to the direction of movement of the objects to be sorted. A plurality of the advance prevention plates 3 are arranged in a staggered manner.

The operation of the first embodiment will be explained. A vibration motor (not shown) is driven, and the objects to be sorted are thrown onto the sorting net 2. Since the objects to be sorted move in a meandering manner as shown by arrow 5 in FIG. 2, the sorting distance can be made longer than in the conventional method. In addition, the gap 4 between the sorting net 2 and the progress prevention plate 3 can separate the objects to be sorted, thereby improving the sorting effect.

That is, objects to be sorted that are smaller than the gap 4 can pass through the lower part of the advance prevention plate 3 as shown by arrow 6, but objects that are larger than the gap 4 cannot pass through the lower part of the advance prevention plate 3. The objects to be sorted are separated from each other by being guided by the progress prevention plate 3 and moving as shown by the arrow 5. Therefore, even if the objects to be sorted are not much different in size, they can be completely separated due to their synergistic effect.

In the first embodiment, the progress prevention plate 3 is fixed to the frame 1, but if the progress prevention plate 3 is attached to the frame 1 in a vertically adjustable manner, the size of the gap can be adjusted. be able to. Such devices also belong to the technical scope of the present invention.

(Example 2) FIGS. 4 and 5 show other embodiments of the apparatus of the present invention.

A blind plate 12 is stretched over the frame 11, and a progress prevention plate 13 is fixed to one inner surface 11a of the frame 11, and a guide plate 17 is fixed to the other inner surface 11b. The progress prevention plate 13 has a certain gap 14 between it and the blind plate 12. Further, the guide plate 17 is installed on the blind plate 12 and has no gap.

The operation of the second embodiment will be explained. Sakizu (commotion motor (
(not shown) is driven, and the objects to be sorted are thrown onto the blind plate 12. The objects to be sorted are moved to the progress prevention plate 1 by the guide plate 17.
3, the objects to be sorted that are smaller than the gap 14 pass through the lower part of the progress prevention plate 13 as shown by the arrow 16, and are discharged from the first discharge port 18. On the other hand, the objects to be sorted that cannot pass through the gap 14 meander as shown by the arrow 15 and pass through the second discharge port 1.
It is discharged from 9.

The apparatus of this embodiment is suitable for separating thin plate-like or needle-like objects to be sorted that can pass through gaps.

In the second embodiment as well, the size of the passing object to be sorted can be adjusted by making the progress prevention plate 13 vertically adjustable.

In both embodiments 1 and 2, the advance blocking plate is attached to the sieve frame, but for example, it is also possible to fix a bar or crosspiece on the sieve and attach the advance blocking plate to this. Furthermore, the blocking plate is not necessarily linear, but may be meandering in a curved manner, and both fall within the technical scope of the present invention.

(Effects of the Invention) That is, according to the present invention, since the plate for preventing the progress of the objects to be sorted onto the sorting screen is installed diagonally with a predetermined gap maintained between the screen surface and In addition to being able to obtain a long sorting distance, objects to be sorted can also be sorted based on their height, and a reduction in sorting accuracy due to overlapping, for example, can be prevented.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is a sectional view, FIG. 3 is a perspective view of another embodiment, FIG. 4 is a sectional view, and FIG. 5 is a conventional sieve. In the plan view, figure a [
Wire netting, Figure b shows blind rope, and Figure 0 shows banding netting.

Claims (1)

[Scope of Claims] 1. A vibrating sieve, characterized in that a plate for preventing the progress of the objects to be sorted is placed above the sorting net with a certain gap, and is installed obliquely so that the objects to be sorted cannot move straight in the direction of movement of the objects. Sorting net device 2 Sorting net device 3 for a vibrating sieve according to claim 1, in which the sorting screen is a wire mesh, a sagging screen, a punching screen, or a blind board. In the patent claim, the progress prevention plate ends protrude obliquely and in a staggered manner toward the center from the parallel frame edges, and the ends of the advance prevention plates protrude from at least one frame edge toward the opposite frame side from the center of the sieve. The vibrating sieve sorting net device 4 according to claim 1, wherein a predetermined gap is provided between the lower edge of the advance prevention plate and the upper surface of the sorting net.