JPH0448937A - Apparatus for supplying granular article material - Google Patents

Abstract

PURPOSE:To stably supply a granular article material without generating the bridge phenomenon thereof by arranging a cylindrical supply roller having a large number of projections provided to the outer surface thereof along a plurality of peripheral directions and a scraping member provided with saw-tooth parts engaging with the gaps between said projections in the axial direction on the downstream side of an inclined guide plate. CONSTITUTION:An auxiliary supply roller 22 and the supply roller 23 near to a grinding roller 30 are arranged to the lower part of a guide plate 20. The supply roller 23 has a large number of pyramidal shape projections 80 formed to the outer cylindrical surface thereof so as to be arranged in the axial and peripheral directions thereof. The scraping plate 82 arranged on the side of the grinding roller 30 of the supply roller 23 has saw-tooth parts at one end thereof and the projections 84 thereof are engaged with the gap parts 86 between the projections 80 to scrape off the granular article material bonded to the supply roller 23. By this constitution, the granular article material generates no bridge phenomenon in a supply apparatus and can stably be supplied.

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention is directed to a powder article material supplying device, particularly a roller device for crushing or rolling the powder article material. The present invention relates to a supply device for powder and granular article materials for stably supplying.

(Prior Art) A conventional roller device for crushing or rolling granular article materials is provided with, for example, a supply cylinder having a semicircular cross section above the roller device, and furthermore, a supply path below the supply cylinder is provided with a supply cylinder for pulverizing or rolling the granular article material. An inclined plate is provided for guiding the material, and a shielding plate is provided above the inclined plate for controlling the supply amount of powder article material.

Meanwhile, a float plate is provided inside the supply cylinder, which is raised and lowered depending on the amount of powder article material being supplied to the roller device through the supply cylinder. In the roller device, the pair of roller members rotates in close proximity to each other to crush the powdered article material only when the powdered article material is being supplied, and when the supply of the powdered article material is stopped, the roller members The members are configured to separate from each other and stop rotating. The supply status of the powder article material is detected by the vertical position of the float plate.

(Problem B to be Solved by the Invention) In the above-mentioned conventional powder article material supply device, even though the shield plate is in the open position where the supply path is opened, the powder article material is placed between the supply roller and the shield plate. The material is stuck,
That is, a bridging phenomenon occurs between the supply roller and the shielding plate, and powder article material is not supplied below the bridging phenomenon, which frequently occurs.

As a result, even though the roller member of the roller device is not supplied with powder article material, the float plate detects that powder article material is being supplied, and the roller member rotates in close proximity, causing the surface of the roller member to become There was a problem with damage.

The present invention has been made in view of the above-mentioned problems of conventional powder article material supply devices, and is capable of stably supplying powder article materials without causing the bridging phenomenon of the powder article materials. The purpose is to provide a feeding device that can.

(Structure of the Invention) The present invention provides a powder article in which an inclined guide plate is disposed in the supply path of the powder article material, and a roller for processing the powder article material is further arranged downstream of the guide plate in the supply path. In the material supply device, a supply roller having a substantially cylindrical shape and having a plurality of protrusions along the circumferential direction on the outer surface of the cylinder is disposed downstream of the guide plate, and a gap between the protrusions of the supply roller in the axial direction is provided. This apparatus is characterized in that a scraping member provided with matching sawtooth portions is disposed.

(Example) Hereinafter, a powder article material crushing apparatus having a powder article material supply device according to an example of the present invention will be described based on the drawings.

The crushing device 100 of the embodiment has two parts configured symmetrically to each other.
It has one feeding device and two roller devices, that is, two crushing devices are integrally constructed. Grinding device 1
00, as shown in FIG. 2, has a supply section 2 disposed on the upper part of a housing 1.

As shown in FIGS. 1 and 2, the supply section 2 has an upper cylindrical inlet section 4 divided into two parts by a dividing wall 6 disposed vertically in the center. In the following, only the set of crushing devices on the left side in FIG. 1 will be described.

A plurality of circular holes were provided in the left supply section 10, and a float plate 12 having an area of about 450 to 550 c+j was vertically arranged facing the left side of the dividing wall 6, and the float plate 12 was pivotally supported at a position P. The distance l between the zero-divided wall 6 supported by the arm 14 and the float plate 12 is 5 to 55 mm,
The area of the dividing wall 6 facing the supply channel 24, which is preferably 5 to 18+a+, is about 1800 to 2200c.
It is d.

The lower part of the dividing wall 6 is connected to a guide plate 20 having an inclination angle a of 30 to 75 degrees, preferably 50 to 60 degrees. Here, the inclination angle a of the guide plate 20 has a correlation with the distance l between the dividing wall 6 and the float plate 12, and in order to stably supply the powder article material, the inclination angle a becomes small. Accordingly, there is a tendency that the interval 1 must be made smaller.

Below the guide plate 20, an auxiliary supply roller 22 and a supply roller 23 close to a crushing roller 30, which will be described later, are arranged parallel to each other. As shown in FIG. 4, the supply roller 23 has a generally cylindrical shape, and has a large number of truncated pyramid-shaped protrusions 80 arranged on the outer surface of the cylinder in the axial direction and the circumferential direction. The dimensions of the supply roller 23 include a cylindrical diameter of 40 to 120 mm;
Length 400-1500 fights, preferably 450-700
The height of the pyramid shape is 4~IOM, and the volume is 20~
It is 2200 cubes. The supply roller 23 may have a shape in which a plurality of protrusions are provided on the outer surface along a plurality of circumferential directions, or may be provided with protrusions of an appropriately shaped shape on the outer surface at appropriate intervals in the circumferential direction and/or the axial direction. good.

The supply roller 23 is further provided with a scraping plate 82 on the side of the crushing roller 30 . The scraping plate 82 has a sawtooth shape at one end, and its protrusion 84 engages the gap 86 between the protrusions 80 to scrape off the powder article material adhering to the supply roller 23. As shown in the figure, if the scraping plate 82 is installed so that the protrusion 84 engages the gap 86 at the end of the supply roller 23 on the crushing roller 30 side, the material adhering to the roller 23 can be removed very smoothly. It can be scraped off.

The auxiliary supply roller 22 has the same configuration as the supply roller 23, and is not provided with a member corresponding to the scraping plate 82.
Another example of the auxiliary supply roller 22 is a paddle type roller 94 having a plurality of scraping plates 94 supported on a rotating shaft 90 via arms 92, as shown in FIG. As the auxiliary supply roller 22, a roll having the same shape as the supply roller 23 or a roll having grooves formed on the outer surface in the circumferential direction and/or the axial direction (both not shown) may be employed.

A shielding blade 26 is pivotally supported on the side surface of the supply path 24 facing the supply roller 23 . The shielding blade 26 is
An open position shown on the left side of FIG. 1 and allowing the granular article material to pass through, and a shielding position shown on the right side of the same figure which cooperates with the supply roller 23 to block the supply path 24 and stop the passage of the granular article material. It oscillates between. The volume of the supply path 24 from the inlet portion 4 to the shielding blade 26 in the shielding position is approximately 20 to 50 I
! , is.

A pair of crushing rollers 30 is arranged below the supply roller 23 and the shielding blade 26 . The crushing roller 30 is the third
As shown in the figure, the fixed frame 32, the air cylinder 34, and the movable frame 36 rotate in the directions of arrows A and B, which are opposite to each other, and are arranged outside the supply path 24. and the rest position.

The crushing device 100 further includes a control circuit (not shown), and controls the shielding blade 26 and the air cylinder 34 by detecting the vertical position of the float plate 12.

That is, when the appropriate amount of granular article material 40 is present in the feed path 24 and the float plate 12 is lowered, the shielding blade 26 is moved to the open position and the air cylinder 34 brings the crushing roller 30 into the proximate position. . On the other hand, when the supply channel 24 becomes short of powder material, the float plate 1
2 is released from the weight of the powder article material and rises, the shielding blade 26 moves to the shielding position and the air cylinder 34
puts the crushing roller 30 in the isolation position.

As shown in FIG. 1, the crushing device 100 configured in this manner is arranged such that the supply pipe 200 for supplying powdery article material is above the inlet portion 4, and the powdery article material is supplied from the supply pipe 200. and used. The pair of supply channels 24 may be used to supply the same powder article material, or may be used to supply different powder article materials.

The feeding device of the present invention can be suitably used in a crushing device for food materials such as wheat and spice materials, cement, iron pieces, plastic pellet raw materials, and the like. In particular, the present invention provides a bulk specific gravity of 0
．． The excellent effect can be obtained on powder article materials, especially food materials, with a particle size of 8 or less and a particle size of 1000 μ or less.

(Effects of the Invention) According to the present invention, it is possible to obtain a supply device that can stably supply powder article materials without causing a bridging phenomenon in the supply device.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a powder article material crushing device having a powder article material supply device according to an embodiment of the present invention, FIG. 2 is a perspective view of the powder article material crushing device, and FIG. 3 is a crushing roller. FIG. 4 is a perspective view of the supply roller, and FIG. 5 is a perspective view of another embodiment of the auxiliary supply roller. 2... Supply section 4... Inlet section 6... Dividing wall I2... Float plate 22... Auxiliary supply roller 23... Supply roller 24... Supply path 26... Shielding blade 30 ...Crushing roller 40...Powdered article material 100...Crushing device Diagram Supply section Entrance section Splitting machine Left supply section Float plate Guide plate Auxiliary supply roller Supply roller Supply path shielding blade 30: Grinding roller 82° scraping Mounting plate 200゛Supply vibe Figure 3

Claims (4)

[Claims] (1) In the powder article material supply device, an inclined guide plate is arranged in the supply path of the powder article material, and further a powder article material processing roller is arranged downstream of the guide plate in the supply path, A supply roller having a substantially cylindrical shape and having a plurality of protrusions along the circumferential direction on the outer surface of the cylinder is provided downstream of the guide plate, and a sawtooth portion that engages in an axial gap between the protrusions of the supply roller. 1. A supplying device for powdered article material, characterized in that a scraping member is disposed. (2) The feeding device according to claim 1, wherein the bulk specific gravity of the powder article material is 0.8 or less. (3) The feeding device according to claim 1, wherein the particle size of the powder article material is 1000 μm or less. (4) The supply device according to claim 1, wherein the supply path has a shielding blade arranged opposite to the supply roller.