JP3011937U - Specific gravity sorter - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a specific gravity sorter that solves the disadvantages of the conventional technology. [Structure] A diaphragm 32 which has a large number of ventilation holes all over the surface and is set to be substantially horizontal with a slight inclination and which vibrates in a certain direction, and the diaphragm 32 which is provided below the diaphragm and which vibrates. A pressurized air chamber 34 for supplying pressurized air through the ventilation holes of the plate, and supplies the object to be sorted containing granular substances having different specific gravities onto the vibrating plate. It is floated by the compressed air and flows downward according to the inclination of the vibration plate and is discharged, and an object having a large specific gravity flows upward along the inclination along the vibration along with the vibration of the vibration plate and is discharged. In the specific gravity sorter 30 thus constructed, the vibration plate 32 is formed by a knitted member in which the wire rod portion forming the stitch has a rectangular cross section.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a specific gravity sorter that separates and sorts objects to be sorted such as grains, nuts, and granular products.

[0002]

[Prior art]

 There is a so-called specific gravity sorter as a device for selecting a good product from a mixture of good products and defective products of granular products such as soybeans. A typical gravity sorter is shown in FIG. The specific gravity sorter 10 has a large number of ventilation holes over the entire surface, is set with a slight inclination, and is vibrated in a certain direction, and is installed under the vibrating plate 12 to provide the same vibration. And a pressurized air chamber 14 for supplying pressurized air through the ventilation holes of the moving plate. The pressurized air chamber 14 is supplied with pressurized air from a blower 16. The vibrating plate 12 and the pressurized air chamber 14 are carried on a base 18. The diaphragm is generally made of a wire net made by weaving a metal wire having a circular cross section or a flat plate provided with a large number of round punching holes.

A mixture of good quality particles and defective particles is supplied onto the diaphragm 12 at a constant speed from a hopper 20 provided above the diaphragm 12. Since the defective particulate matter has a smaller specific gravity than the good quality particulate matter, it is floated by the pressurized air supplied through the diaphragm and flows downward according to the inclination attached to the diaphragm. On the other hand, high-quality granules have a large specific gravity, so they are not floated by pressurized air and are affected by the vibration of the diaphragm. The vibration of the diaphragm is along the inclination direction of the diaphragm. When the diaphragm moves upward in the inclination, the speed is increased, and when the diaphragm moves downward, the speed is relatively decreased. The high-quality particulate matter that remains on the diaphragm without floating from the diaphragm receives such vibration and gradually climbs upward along the diaphragm and gathers above the slope. In this way, defective particles can be discharged at the lower position of the slope, and good quality particles can be taken out at the upper position of the slope.

Although such a sorter generally works well, when the object to be sorted is a round one that rolls easily such as adzuki beans or soybeans, a good product climbs upward due to the vibration of the diaphragm, while climbing upward on the inclined surface. Since it rolls downward along the slope, it is not possible to climb the inclined surface efficiently, resulting in poor sorting or poor sorting ability. Therefore, in the conventional sorting machine, as shown in 2A of FIG. 2, a crosspiece 22 having an appropriate height is provided so as to cross the inclination direction, or as shown in 2B of FIG. To prevent it from rolling down the inclined surface.

[0005]

[Problems to be solved by the device]

 However, although the above-mentioned conventional method can prevent the non-defective product from rolling down, it is difficult to climb upwards, resulting in a decrease in the efficiency of the selection and an unfavorable time required for the selection. was there.

It is an object of the present invention to provide a specific gravity sorter that eliminates the disadvantages of the conventional techniques.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, in a specific gravity sorter according to the present invention, a vibrating plate is a knitted member, and at least a wire member which is a knitted member and which crosses the inclination direction of the vibrating plate. It is formed by a stitch-shaped member having a rectangular cross section.

The above-mentioned knitted member is preferably a wire net formed by weaving a metal wire rod. Further, a molded plastic molded product may be used as long as it has the shape of the knitted member as described above. Further, it is preferable that the knitted member is oriented so that one side of the stitch is substantially perpendicular to the inclination direction. The height of the unevenness formed by the stitches, that is, the thickness of the wire and the roughness of the stitches are appropriately selected according to the shape and size of the object to be sorted.

[0009]

Embodiment FIG. 3 shows a specific gravity sorter which is an embodiment of the present invention. This specific gravity sorter is no different from the conventional specific gravity sorter shown in FIG. 1, and is composed of a diaphragm 32, a pressurized air chamber 34, a blower 36, a base 38, a hopper 40, and the like. The operation is also similar to that described with reference to FIG.

FIG. 4 shows in detail a part of the diaphragm 32 used in the specific gravity sorter of FIG. As can be seen from FIG. 4, the diaphragm 32 is made of a wire mesh formed by weaving a metal wire rod having a rectangular cross section, and one side of the mesh of the wire mesh is substantially perpendicular to the inclination direction of the diaphragm. It is arranged. With such a structure, an angular projecting portion that crosses the inclined surface is formed, which prevents the non-defective granular material from rolling. On the other hand, since this wire is not so thick, the height of the protruding portion is not so high with respect to the size of the granular material, which does not hinder the granular material from climbing up the slope due to vibration.

[0011]

[Effect of device]

 As described above, according to the configuration of the present invention, the rectangular cross section of the stitch-shaped member forming the diaphragm appropriately prevents the granular objects to be sorted from rolling down the inclined surface, and the objects to be sorted are selected. Since it does not hinder the climbing of slopes due to vibration, it is a very simple method and does not change the structure of the conventional sorter. Is possible.

[Brief description of drawings]

FIG. 1 is a front view of a conventional specific gravity sorter.

2A and 2B are side cross-sectional views of a diaphragm in a conventional specific gravity sorter, respectively.

FIG. 3 is a front view of the specific gravity sorter of the present invention.

4A is a perspective view of a diaphragm in the specific gravity sorter of FIG. 3, and FIG. 4B is a partially enlarged view of the diaphragm.

[Explanation of symbols]

30 specific gravity sorter, 32 diaphragm, 34 pressurized air chamber, 36 blower, 38 base, 40 hopper

Claims (3)

[Scope of utility model registration request] 1. A vibrating plate which has a large number of ventilation holes over the entire surface and is set to be substantially horizontal with a slight inclination and which vibrates in a certain direction, and which is provided below the vibrating plate. And a pressurized air chamber for supplying pressurized air through the ventilation holes of the diaphragm, and an object to be sorted containing granular substances having different specific gravities is supplied onto the diaphragm. It is floated by the compressed air and flows downward according to the inclination of the vibration plate and is discharged, and an object having a large specific gravity flows upward along the inclination along the vibration along with the vibration of the vibration plate and is discharged. In the specific gravity sorter made, the vibrating plate is a knitted member and is a knitted product having a rectangular cross-section of a wire rod part that crosses at least the inclining direction of the vibrating plate among the wire rod parts forming the stitches. Characterized by being formed of a member Specific gravity sorter. 2. The specific gravity sorter according to claim 1, wherein the stitch-like member is a wire mesh knitted with a metal wire. 3. The specific gravity sorter according to claim 1, wherein the stitch-shaped member is oriented so that one side of the stitch is substantially perpendicular to the inclination direction.