JPH0630307Y2 - Clog prevention device for powder sifter - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a clogging prevention device for a powder sifter. More specifically, the present invention relates to a clogging prevention device for a powder sifter, which prevents powder from accumulating in the corners of the powder sifter and allows the slider knob to be replaced even if the slider knob is worn out by use. .

[0002]

2. Description of the Related Art For example, in a flour mill, a powder sifter is used in the process of pulverizing raw material wheat to produce wheat flour. An example of this powder sifter will be described with reference to FIG. 3, which is an embodiment of the present invention. The powder sifter 5 has a sifter frame 50 formed in a rectangular shape,
The sieve frame 50 is divided by a crosspiece 51 into six rectangular sections 54. On one side of the sieve frame 50, a metal floor net 52 (stainless steel or iron net galvanized) having a relatively large mesh is stretched. A fine mesh sieve 53 made of nylon is stretched on the other surface side of the sieve frame 50. Sieve frame 50, crosspiece 51, floor net 52, sieve net 53
A clogging prevention device 100 is enclosed in each compartment 54 surrounded by. Then, the powder screen 5 with the screen 53 side facing up
Is installed horizontally, and the whole is horizontally shaken to sieve powder falling from above. At this time, the clogging prevention device 100 slides on the floor net 52 due to this swinging, hits the sieve frame 50 and the crosspiece 51 and gives an impact to the powder sieve 5, and further contacts the sieve net 53 to make the sieve net 53. Prevent the powder from clogging the 53.

[0003]

[Problems of the Prior Art] The above-mentioned conventional clogging prevention device 1
00 is a device body 1 formed in a disk-shaped body in which each side of an equilateral triangle is curved outward, and a slider knob 4 is provided on the device body 1. When molding or molding the instrument body 1 with plastic, the slider knob 4 made of metal was integrally fixed by insert molding.

By the way, when the slider knob 4 is made of metal, it is worn away with the floor net 52 to generate metal powder. At that time, the metal powder may adhere to the instrument body 1 due to the action of static electricity, which may damage the sieve screen 53 and tear it from the location. In order to prevent one of the floor net 52 and the slider knob 4 from being worn away quickly, it is necessary to change the slider knob 4 according to the material of the floor net 52. However, as described above, the slider knob 4 cannot be replaced because it is integrally formed of the same material as the instrument body 1 or integrally fixed by insert molding. This also means that if the slider knob 4 wears out, it cannot be replaced by itself.

Further, powder is likely to accumulate in the corner 55 of the rectangular partition 54 formed by the sieve frame 50 and the crosspiece 51, but the internal angles of the conventional clogging prevention device 100 are more than 90 °. Since it is large, there is a problem that the powder in the four corners 55 cannot be removed.

[0006]

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a clogging preventive device in which a slider knob can be attached to and detached from a device body, and the powder accumulated at the four corners of the compartment can be removed. Another object of the present invention is to provide an anti-clogging device which rubs the screen surface well and improves the efficiency of dropping the powder from the screen surface.

[0007]

[Means for Solving the Problems] The constitution of the device devised to achieve the above object is as follows. That is, the present invention provides an instrument main body formed in a plate-like body in which each side of an equilateral triangle is gently curved outwardly; and a protrusion provided at a peripheral portion of one surface of the instrument main body at a required interval. A plurality of cleaning warts provided; a slider knob mounting hole provided in the center of the instrument body; a slider having a slider portion formed in a spherical shape and an insertion protrusion protruding from the slider portion A knob and; and each interior angle a of the instrument body is within a range of 60 ° <a <90 °,
Further, a required number of powder passage holes are provided around the slider knob mounting hole in the device body, and the slider knob has a slider portion protruding toward the other surface side of the device body. It is detachably attached to the
The clogging preventing device for a powder sifter has fine irregularities formed on the tip surface of the cleaning wart.

Action / Effect The clogging preventive device is enclosed in a section formed by a sieve frame or a crosspiece, and the powder sieve is installed horizontally with the sieve screen side facing upward, and the whole is rocked to Sift the falling powder. At this time, the clogging prevention device slides on the floor screen due to this swing, hits the sieve frame and crosspieces and impacts the powder screener, and the cleaning wart contacts the screen screen, causing powder to be caught on the screen screen. Prevents clogging. If the slider wears out, take it out of the instrument body and replace it with a new one. In addition, powder accumulated in the four corners of the section formed by the sieve frame and the crosspiece can also rush into the four corners because the internal angles of the instrument body are in the range of 60 ° to 90 °.
The accumulated powder can be removed. Since fine irregularities are formed on the tip surface of the cleaning wart, the efficiency of rubbing the sieve mesh surface well and dropping the powder from the sieve mesh surface is improved.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the embodiments shown in the drawings. Note that the same or equivalent portions are denoted by the same reference symbols throughout the drawings. 1 is a perspective view showing an embodiment of a clogging prevention device according to the present invention, and FIG. 2 is a sectional view taken along the line II of FIG. In the figure, a clogging prevention device 100 has a device body 1 formed of plastic and formed into a spherical equilateral triangular plate-like body in which each side of an equilateral triangle is gently curved outward. . The internal angle a of each vertex of the device body 1 is 60 °
<A <90 °. One side 1 of the instrument body 1
A plurality of cleaning warts 2 are provided on the peripheral portion of 0 at a predetermined interval. On the tip surface of this cleaning wart 2, for example, fine irregularities 20 having a satin finish are formed.
At the center of the instrument body 1, a slider knob mounting hole 3
Is provided so as to penetrate the instrument body 1. A latching step portion 31 is formed on the inner wall of the slider knob mounting hole 3. Around the slider knob mounting hole 3 of the instrument body 1, a required number of powder passage holes 12 are provided.

Reference numeral 4 denotes a slider knob formed of a plastic material having a low wear resistance and a small friction coefficient, and a slider portion 40 formed in a hemispherical shape, and protruding from the opposite surface side of the slider portion 40. An insertion protrusion 42 is provided. The insertion protrusion 42 is formed with the latching step portion 31 and the latching step portion 41 for latching. The slider knob 4 is detachably mounted in the slider knob mounting hole 3 by projecting the slider portion 40 toward the other surface 11 of the instrument body 1.

Operation / Effect FIG. 3 shows a state of use of the clogging prevention device according to this embodiment, and is a plan view with a part of the screen screen cut away, and FIG. 4 shows the movement of the clogging prevention device. It is a figure. The clogging prevention device 100 is enclosed in a section formed by the screen frame 50 and the crosspiece 51, the powder screen 5 is installed horizontally with the screen 53 side facing upward, and the whole is rocked and dropped from above. Sift the coming powder. At this time, the clogging prevention device 100 slides on the floor net 52 by this swinging, hits the sieve frame 50 and the crosspiece 51, and gives an impact to the powder sieving machine 5, and the cleaning wart 2 further causes the cleaning wart 2 to move.
3 to prevent the sieve mesh 53 from being clogged with powder. In addition, the powder accumulated in the four corners 55 of the partition formed by the sieve frame 50 and the crosspiece 51 can also rush into the four corners because the interior angle of each vertex 13 part of the instrument body is within the range of 60 ° to 90 °. , The accumulated powder can be removed.

Since the slider knob 4 is detachably mounted in the slider knob mounting hole 3, it can be replaced with the slider knob 4 suitable for the material of the floor net 52, and if the slider portion 40 is worn out. It can be taken out of the instrument body 1 and replaced with a new one. Also,
Since the fine irregularities 20 are formed on the tip surface of the cleaning wart 2, the efficiency of dropping the powder from the surface of the screen by rubbing the surface of the screen 53 well. Further, the present invention is not limited to the illustrated embodiment, and various modifications can be made within the scope of the claims for utility model registration.

[0013]

The present invention has the following effects because it has the above-mentioned configuration. (1) The slider knob is removably mounted in the slider knob mounting hole provided in the instrument body. For this reason, the slider knob can be removed from the instrument body,
If worn, only the slider knob can be replaced. Therefore, it is not necessary to discard the usable instrument body, and it is possible to reduce the waste of resources. Further, since the slider knob can be replaced with a material suitable for the material of the floor net, abrasion with the floor net can be reduced, generation of metal powder can be suppressed, and damage to the sieve net can be prevented. (2) The internal angle a of the instrument body formed in a disk-shaped body in which each side of the equilateral triangle is gently curved outward is 60 ° <a <9
Since it is within the range of 0 °, the powder accumulated in the four corners of the section formed by the sieve frame and the crosspiece can be sufficiently removed. (3) Since fine irregularities are formed on the tip surface of the cleaning wart, the efficiency of rubbing the sieve mesh surface well and dropping the powder from the sieve mesh surface is improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of an anti-clogging device according to the present invention,

FIG. 2 is a sectional view taken along the line II of FIG.

FIG. 3 is a plan view showing a usage state, in which a part of the screen is cut away.

FIG. 4 is an explanatory view showing the movement of the clogging prevention device.

[Explanation of symbols]

 1 Instrument Main Body 10 One Side of Instrument Main Body 11 Other Side of Instrument Main Body 12 Powder Passing Hole 13 Each Vertex of the Instrument Main Body 2 Cleaning Warts 20 Fine Concavities and convexities 3 Slider Knob Mounting Holes 4 Slider Knob 40 Slider Part 42 Insertion Protrusion

Claims (1)

[Scope of utility model registration request] 1. An instrument main body (1) formed in a disk-shaped body in which each side of an equilateral triangle is gently curved outward; and a peripheral edge of one surface (10) of the instrument main body (1). A plurality of cleaning warts (2) projecting at required intervals on a part; and a slider knob mounting hole (3) provided at the center of the instrument body (1)
And a slider knob (4) having a spherically shaped slider portion (40) and an insertion protrusion (42) protruding from the slider portion (40); Each interior angle a of 1) is within the range of 60 ° <a <90 °, and the slider knob mounting hole in the instrument body (1)
A required number of powder passage holes (12) are provided around (3), and the slider knob (4) has the slider part (40) on the other surface (11) side of the instrument body (1). It is attached to the slider knob mounting hole (3) so that it can be projected, and the cleaning wart (2) has fine irregularities (20) on the tip surface.
A clogging prevention device for powder sieving machine.