JPS6333663Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a fine grain discharge device of a vertical sorting device that can control the discharge amount of small grains to be sorted and separated.

Prior art and its problems In general, a vertical grain sorting device consists of a sorting net that is rotatably installed upright, and a spiral body that is fitted into the sorting net and rotatably installed concentrically. The structure is usually built inside the shell, and the small grains to be sorted and separated flow into the field provided on the outer periphery of the sorting net, and the small grains are sent to the lower scraper provided at the bottom of the field. A configuration is known in JP-A-58-163481, in which small particles are conveyed and discharged from a small particle discharge port.
In this device, when the amount of small grains to be sorted and separated increases and the small grain receiving box, etc. is replaced, there are problems such as the small grains often overflowing from the receiving box and scattering around. Was.

Purpose of the invention In view of the above points, the present invention completely eliminates the drawbacks of the conventional device described above by providing a fine grain discharge port equipped with a special opening/closing valve in the fine grain chamber. A fine grain discharging device for a vertical sorting device that simplifies and benefits the work of replacing receiving boxes, etc., and prevents the harmful effects of small grains spilling out and scattering around when replacing receiving boxes, etc. The purpose is to provide.

Structure of the invention The fine particle discharging device of the vertical sorting device of the present invention has a porous wall sorting tube rotatably installed in the vertical machine frame, and a spiral body is fitted inside the sorting tube and rotates. A mixture of large and small grains is supplied to the spiral body from a supply hopper provided at the top of the machine frame, and only small grains are discharged outside the sorting cylinder, and large grains are discharged from the bottom of the sorting cylinder. In the sorting device, a fine grain chamber for collecting the sorted small grains is formed between the machine frame and the porous wall sorting tube, and the small grains are scraped against the peripheral wall of the porous wall sorting tube at the bottom of the fine grain chamber. The present invention is characterized in that it is provided with blades for scraping out small grains, and a fine grain discharge port equipped with an on-off valve for discharging small grains is provided on the peripheral wall of the machine frame.

DESCRIPTION OF EMBODIMENTS The configuration of the present invention will be explained based on the drawings.
In FIG. 1, a porous wall sorting tube 2 is rotatably installed inside a vertical machine frame 1, and a spiral body 3 is fitted inside the sorting tube 2 so as to rotate. It is a vertical sorting device that supplies a mixture of large and small grains from a supply hopper 4 provided at the top, discharges only small grains to the outside of the sorting tube 2, and discharges large grains from the bottom of the sorting tube 2. .

The helical body 3 has a supporting vertical shaft 8 erected on the upper wall surface 7 of a cylindrical body 6 around which the helical blades 5 are wound, and a rotation locking portion 10 consisting of an opening or the like on the lower wall surface 9. A rotary disc body 11 is provided at the inner bottom of the machine frame 1, and a rotary main shaft 13 is protruded loosely into a main shaft through hole 12 provided in the center of the disc body 11. The porous wall sorting cylinder 2 is placed on the rotary disc body 11 and is detachably attached thereto, and the rotary spiral body 3 is attached to the rotation locking body 14 provided at the end of the rotary main shaft 13. The rotation locking part 10 is removably engaged and fixed, and a shaft cylinder part 15 is provided on the outer periphery of the rotational main shaft 13 so as to be slidable and rotatable, and the upper cylinder end and the rotation disk are connected to each other. body 11
The outer periphery of the through hole 12 is removably attached to the outer circumference of the through hole 12 using a screw shaft 16 or the like, and the electric motor 1 is mounted inside the lower base 42.
A gear rotation mechanism 18 connected to the rotation mechanism 18 is provided, and the lower end of the rotation main shaft 13 is integrally connected to the high speed rotation gear 19 provided on the rotation mechanism 18, and the shaft cylinder is connected to the low speed rotation gear 20. The lower cylinder end of the section 15 is integrally pivoted so that the rotary spiral body 3 and the porous wall sorting cylinder 2 rotate at different speeds. 4 is removably mounted with a mounting bracket 21, and a shaft bearing part 23 is fixed inside the hopper 4 with a fixing support rod 22, and the vertical axis of the spiral body 3 is fixed by the shaft bearing part 23. A fine grain chamber 2 is provided between the machine frame 2 and the porous wall sorting tube 2 to collect the sorted small grains (fine grains).
4, and a scraping blade 25 for scraping out small grains is provided on the peripheral wall of the porous wall sorting cylinder 2 at the bottom of the fine grain chamber, and an opening/closing mechanism for discharging the small grains is provided on the peripheral wall of the machine frame 1. A fines outlet 27 with a valve 26 is provided (second
(See figure) The illustrated opening/closing valve 26 is opened and closed by pivoting a valve plate 30 equipped with an operating rod 29 to a rotating shaft 28 provided at the upper end of a fine grain discharge port 27 consisting of a discharge tube. The operating rod 29 is tensioned by an elastic spring 31. Reference numeral 32 in FIG. 1 denotes a blade for grain size scraping provided on the lower wall surface of the rotary disk body 11;
34 is the grain discharge port, and 34 is the upper support rod installed in the sorting tube.
35 is a stirrer provided on the upper wall surface of the spiral body 3; 36
is a receiving box for fine particles.

The operation of the above configuration will be explained below.

Supply hopper 4 of vertical sorting device for mixed large and small grains
When the apparatus is started, the porous-wall sorting tube 2 and the spiral body 3 rotate in the same direction at different speeds, so that the mixed grains flow down from the feed hopper 4 and pass through the inclined spiral blades 5 of the spiral body 3. The grains flow upward to form a grain layer, and upon contact with the spiral blades 5 rotating at high speed, each grain receives centrifugal force and is urged toward the porous wall sorting tube 2, drifting in a scattering pattern, and separating the grains into small particles. The grains are removed into the fine grain chamber 24 through the holes in the porous wall sorting tube 2, and the large grains (sized grains) come into contact with the sorting tube 2 rotating at a low speed and are moved in the opposite direction by the contact force. The small grains mixed with the replaced grains due to the drift in the opposite direction are discharged from the through hole in the same manner as above by the centrifugal force applied next. The grains flow down into the fine grain chamber 24, and the grains on the spiral blades 5 gradually move obliquely downward due to the rotational force of the spiral body 3 and accumulate at the bottom of the cylinder while swirling inside the porous wall sorting cylinder 2. At the same time, the small grains in the fine grain chamber 24 are conveyed by the rotation of the blades 32 and taken out of the machine from the grain size discharge port 33, and the small grains in the fine grain chamber 24 are conveyed by the blades 25, 27 to the outside of the machine and stored in a fine particle receiving box 36 or the like. When the amount of small grains in the receiving box 36 increases and the receiving box 36 is to be replaced with another receiving box 36, the operation lever 29 in FIG. 2 is operated to close the on-off valve 26 and the small grains are It is possible to stop discharging the fine particles, replace it with a new receiving box 36, and set it at a fixed position below the fine particle discharge port 27. Furthermore, when the present sorting device is moved, by closing the on-off valve 26, it is possible to prevent the harmful effects of the remaining small grains being scattered during the movement of the device.

The on-off valve 26A in FIG. 3 is configured to open and close by moving an on-off plate 37 vertically along the inlet of the fine grain outlet 27 consisting of a discharge tube, and a locking device consisting of an elastic spring and a steel ball. The opening/closing valve 26 is formed with an opening/closing plate so as to lock the opening/closing plate 37 by the opening/closing plate 38 and stop the opening/closing plate 37, which moves up and down, at an arbitrary position.

The on-off valve 26B in FIG. 4 is constructed by inserting an on-off plate 37A with a discharge tube 39 attached to the plate surface into sliding grooves 40 and 40 provided in the vertical direction on both sides of the fine particle discharge port 27, respectively. 37A is moved up and down to open or close the discharge port 27, and the fifth
The on-off valve 26C shown in the figure is constructed by fitting an on-off plate 37B with a discharge pipe 39A attached to the plate surface into sliding grooves 41 and 41 provided in the horizontal direction at the upper and lower parts of the fine particle outlet 27, respectively. Move laterally to the outlet 2
The opening/closing valve 26 is provided with an opening/closing plate so as to open or close the opening/closing valve 7.

Note that the on-off valve is not limited to the structure and shape shown in the drawings, and may of course be used with appropriate modifications.

Effects of the Invention As described above, according to the present invention, when collecting small grains and discharging them from the bottom of the fine grain chamber to the fine grain outlet using the scraping blades, the fine grain outlet When replacing a receiving box, etc. that receives small grains flowing out of the container, operate the on-off valve installed at the fine grain outlet to temporarily stop the flow of small grains and replace it with another receiving box, etc.
Since the on-off valve is opened again and the small grains flow out from the fine grain outlet, it is possible to completely prevent the harmful effects of small grains being scattered around, and in addition to preventing wastage of grains, the work area is kept clean. It has the effect of being able to hold the material.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view of this device, Fig. 2 is an enlarged sectional view of the on-off valve, Fig. 3 is an enlarged sectional view of the on-off valve of the second embodiment, and Fig. 4 is an enlarged sectional view of the on-off valve of the third embodiment. Expanded sectional view, FIG. 5 is an enlarged sectional view of the on-off valve of the fourth embodiment. 1... Vertical machine frame, 2... Porous wall sorting tube, 3...
Spiral body, 4... Supply hopper, 5... Spiral blade, 6
... Cylindrical body, 7 ... Upper wall surface, 8 ... Vertical shaft for indication, 9 ... Lower wall surface, 10 ... Rotation locking part, 11
... Rotating disk body, 12 ... Main shaft through hole, 13 ... Rotating main shaft, 14 ... Rotation locking body, 15 ... Shaft cylinder part, 16 ... Spiral shaft, 17 ... Electric motor, 18 ... Gear rotation mechanism, 19... High speed rotation gear, 20...
Low speed rotation gear, 21...Mounting bracket, 22...Fixing support rod, 23...Shaft bearing, 24...Fine grain chamber,
25...Scraping wing piece, 26, 26A, 26B, 2
6C...Opening/closing valve, 27...Fine particle discharge port, 28...
Rotary shaft, 29... Operating rod, 30... Valve plate, 31...
Elastic spring, 32... Grain grading scraping blade, 33... Grain grading discharge port, 34... Upper support rod, 35... Stirring body,
36...Receiving box for fine particles, 37, 37A, 37B...
Opening/closing plate, 38...Locking device, 39, 39A...Discharge pipe, 40...Sliding groove, 41...Sliding groove, 42...
...lower base.

Claims (1)

[Claims for Utility Model Registration] (1) A porous wall sorting tube is rotatably installed in a vertical machine frame, a spiral body is fitted into a rotatable cylindrical body provided inside the sorting tube, and the A supply hopper is provided at the top of the vertical machine frame to supply a mixture of large and small grains to the spiral body, and scraping blades are provided at the bottom of the fine grain chamber that collects only small grains. In a sorting device configured to communicate with a fine grain discharge port formed at the top and discharge large grains from the bottom of the sorting cylinder, the small grains are discharged to the fine grain discharge port or temporarily interrupted. A fine particle discharging device for a vertical sorting device characterized by being equipped with an on-off valve. (2) The vertical type according to claim (1) of the utility model registration claim, in which the opening/closing valve is formed by attaching a valve plate supported on a rotating shaft provided with an operating rod so as to be openable and closable at the fine particle discharge port. Fine particle discharge device of sorting equipment. (3) The vertical sorter according to claim 1, wherein the fine particle discharge port is slidably provided with a discharge pipe having a closing plate on one side thereof and formed in the on-off valve. Equipment fines discharge device.