JPH037532A - Method for scattering powder and device therefor - Google Patents

Abstract

PURPOSE:To enable prevention of plugging, uniform scattering of powder and simple control of powder scattering amount by agitating and pressurizing powder between hopper bottom and scraping rod and enforcibly discharging powder in the inside of hopper from a hole of the hopper bottom. CONSTITUTION:When flour, buckwheat powder, etc., K is charged into a hopper 11 having a hopper punching screen plate 13 having cross section of circular arc in the bottom and a main shaft 16 is operated by crank mechanisms 21-23, a scraping rod 19 in which a brush 27 is arranged on the tip coupled through scraping rod inserting plates 18A and 18B to the main shaft 16 is moved to left while mixing power in the hopper 11 and in similar manner, reciprocated to right. At this time, as the scraping rod 19 is reciprocated to left and right as in pendulum swing while pushing flour, etc., K between the rod 19 and the hopper punching screen plate 13 formed in the bottom of hopper 11 to the plate 13 face, powder is discharged from the hole of the plate 13 and flour, etc., K is uniformly scattered.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method and apparatus for mechanically dusting flour before and after the manufacturing process in the processing of grain flour.

[Conventional technology]

Conventionally, as means for dusting in the processing of this type of grain flour, manual dusting or a so-called tonko-type flour duster having the configuration shown in FIG. 4 have been used. In this method, a device consisting of a rotating crank-shaped drive means 2 is installed in a sieve-shaped container 1 with a wire mesh stretched on the bottom at a location where dusting is required, and flour, buckwheat flour, etc. are poured into the container 1. However, there is a device in which the container 1 is reciprocated in the horizontal direction by the crank-shaped driving means, and the powder inside is caused to fall and scatter due to the impact.

Further, in a conventional powder dusting machine having a rotating brush type configuration as shown in FIG. and a drive source M that obtains rotational force via a separate rotating belt 6.
A cylindrical brush 4 connected to the hole 5 is rotated, and the rotation of the brush 4 prevents powder such as wheat flour from clogging the hole 5, and evenly sprinkles the powder around the periphery.

In other words, when actually using this duster,
After putting dry flour or buckwheat flour into flour container 3,
A brush 4 in a powder container 3 is rotated by a motor M or the like serving as a driving source, and powdered material is scattered through a large number of holes 5 to be spread thinly and widely.

[Agenda that the invention attempts to solve]

However, the above-mentioned manual dusting is inefficient, and in the conventional tonko-type duster shown in Fig. 4, the container 1 on the sieve is vibrated in the lateral direction, and the impact causes the powder to be powdered. Since the powder is dropped, it makes a lot of noise, creates a poor working environment, and has the disadvantage that the net at the bottom gets clogged, making it difficult to shake the powder evenly.

Furthermore, in the brush rotating type conventional powder duster shown in FIG. 5, the brush 4 is simply rotated by a motor M or the like as a driving source. This may be because the bottom surface of the net-like bottom does not always match perfectly, and flour, etc. often hardens due to the moisture in the outside air and clogs some of the holes 5 in the net-like bottom. As a result, the powder could not be evenly distributed, resulting in a significant loss of efficiency. That is, since the rotating brush hits only one place on the bottom surface, there is a drawback that spots are formed in the powder.

[Means to solve the problem]

Accordingly, the present invention provides a powder container having at least a large number of discharge holes and whose bottom part has an arcuate cross section, and which is connected to a drive source and rotates in forward and reverse directions or in a fixed direction. A movable shaft is provided, and the pendulum is connected to the rotary shaft via a scraping rod insertion plate, and reciprocates or rotates in a pendulum along the bottom portion having an arcuate cross section at a position close to the discharge hole. A scraping rod or a scraping rod with a brush at the tip is provided, and a pressure spring is used to press the scraping rod so that it is always in contact with the bottom, thereby preventing clogging and distributing powder evenly. possible, and furthermore,
This is a duster that allows you to easily adjust the amount of dust.

[For production]

Therefore, in the present invention, when the rotating shaft connected to the drive source is rotated, the cylindrical scraping rod provided close to the numerous holes at the bottom of the arc-shaped cross section is swung. By reciprocating or rotating, the scraping rod can be moved to clean the hole surface and prevent clogging, and the stirring action can prevent powder from accumulating. The suppressing action of the brush provided in the section makes it easier to discharge powder.

〔Example〕

The present invention will be described in detail below based on illustrated embodiments.

FIG. 1 is a configuration diagram of an embodiment according to the present invention. 1st
In the figure, reference numeral 11 denotes a flour hopper which is constructed of a punching screen plate 13 whose bottom part has an arcuate cross-section and which has a predetermined hole diameter and a predetermined pitch interval.

A main shaft 16 connected to a drive source (variable speed motor) 15 is mounted horizontally in the center of the hopper 11, and the main shaft 16 has concave grooves at both ends for inserting a scraping rod. 17 (not shown in FIG. 1) are provided, and between these two scraping rod insertion plates 18A, 18B, the powder inside is removed from the punching screen. It consists of a scraping rod 19 inserted through a hole in a plate 13 for scattering powder. Then, the concave groove 1
A spring spring 25 for supporting the scraping rod 19 and bringing the scraping rod 19 into contact with the punching screen plate 13 with a predetermined pressing force is disposed inside the hole 7. The scraping rod 19 is provided so as to move while pressing against the punching screen plate 13 of the semicircular hopper 11.

Next, FIG. 2 schematically shows an intra-hopper moving section 20 comprising the scraping rod 19 and the two scraping rod insertion plates 18A118B in this embodiment. In this reciprocating part of the swing, the scraping rod 19 is held between the two scraping rod insertion plates 18A and 18B by a spring spring 2.
5, and is configured to be inserted along the insertion groove 17, and the main shaft of the moving part 29 is connected to the motor 15 and other crank mechanism parts described later on the outside of the hopper 11. It is.

In this embodiment, the length of the hopper moving part 20 consisting of the scraping rod 19 and the two scraping rod insertion plates 18A and 18B is the depth width of the hopper punching screen plate 13, as shown in FIG. It is approximately the same length. Further, a convex portion is formed in the vertical direction on both ends of the scraping rod 19 so as to be inserted into the scraping rod insertion concave groove 17, and the two fan-shaped scraping rod insertion plates 18A,
18B, via the spring spring 25, or
They are inserted and connected in a movable manner with a certain gap.

Furthermore, to explain the crank mechanism section, as shown in FIG. 1, a main shaft 16 extends to the outside of the hopper 11, and a crank tip 21 is connected to the end thereof so as to be able to rotate in a pendulum-like reciprocating manner. , is configured to be rotatably connected to a crank arm 23 connected to the motor 15 via a rod 22. Therefore, when the motor 15 rotates, the crank base 23 rotates at a predetermined rotation radius, thereby the rod 22 moves, and its crank action rotates the main shaft 16 in the forward and reverse directions, thereby removing the scraping rod. 19 and moves it back and forth to Chiaki.

In addition, in the crank base 23 in this embodiment, adjustment slots 28 are provided at predetermined intervals of 20 to 50 mm in the vertical direction.
By connecting the crank 22 to any position of the adjustment slot 28, the rotation radius can be changed from 20 to 50.
The rotation stroke is determined within or outside of mm. In the embodiment shown in FIG. 1, the adjustment slot actually used is hidden behind the disc-shaped crank base 23 and cannot be seen, but other adjustment slots that are separately provided radially are , shown as 28. That is, by setting the rotation radius of the crank tip 21 to 80 mm, the movement interval (stroke) of the scraping rod 19 can be adjusted. By adjusting the stroke in this way, when the stroke is long, the movement interval of the scraping rod 19 becomes longer, and the amount of dust can be increased. Conversely, if the stroke is short, the amount of dust will be reduced.

Further, the motor 15 is a variable speed motor whose rotation speed can be adjusted, and by changing the rotation speed, the movement interval of the scraping rod 19 can be adjusted as described above.

Therefore, considering the dust range, powder particles that do not clog the punching holes, dust dust efficiency, etc.
Changing the pitch of the crank mechanisms 21 to 28, and
Adjust the variable dial of the motor M to remove the scraping rod 1.
This allows the speed to be adjusted to an appropriate speed of 9.

In the above embodiment, the scraping rod 19 is moved back and forth in a pendulum-like manner, but by rotating the main shaft 16 in a fixed direction using a driving means such as a motor, the scraping rod 19 is moved back and forth in a pendulum shape.
9 may be rotated and moved at a position where it is brought into contact with the hopper punching screen plate 13.

In this embodiment, the bottom of the hopper 11 has been described as having a semicircular cross section, but as long as it has an arc shape, even if the arc shape is gentle,
It is sufficient if the scraping rod 19 can reciprocate or rotate in a pendulum-like manner at a position close to the bottom.

In this embodiment, the hopper punching screen plate 1
3 uses a length of 700 mm or more, a width of 130 mm or more, and a hole size of 0. 5mm or less, pitch between holes 1.
It was formed using a material with a diameter of about 5 mm.

Further, as the scraping rod 19, a rod having a diameter of 6 mm and made of iron was used.

The inventor of the present application uses scraping rods 19 of various shapes,
As a result of trial and error, the 6mmφ used in this example
In addition to iron rods, the material may be prismatic rods instead of cylindrical if the holes of the hopper punching screen plate 13 are 0.5 mm or more and the pitch is 0.4 mm or less. In addition, if the hole is a small hole of a punching screen plate of around 0.15 mm, it is best to attach a short-bristled brush 27 to the contact surface of the rod to enable even dusting. was known. In this case,
As shown in FIG. 2, the cylindrical or prismatic scraping rod 19 is provided with a brush 27 with a brush attachment fitting 26 of about 6 mm in diameter at the portion that contacts the punching screen plate 13. .

Both ends of the rod are connected to the scraping rod insertion plate 18A.
, 18B, an angular or half-angular vertical convex portion is formed so as to be inserted along the concave insertion groove 17. this is,
Although the scraping rod 19 makes a pendulum-like reciprocating motion,
The thing itself is meant to keep it from rotating;
Further, in the case where a half-square convex portion is formed, the scraping bar 19 may be configured to move up and down slightly within the concave insertion groove 17, but a small spring may be installed in the concave groove 17. While pressing the scraping rod 19 against the punching screen plate 13 with the pressing force of the spring spring,
A good dusting effect was obtained by moving the powder.

Next, the operation of this embodiment will be explained with reference to FIGS. 3(A) and 3(B).

After putting wheat flour, buckwheat flour, starch, etc. K into a hopper 11 having a hopper punching screen plate 13 whose bottom section has an arc-shaped cross section, the main shaft 16 is moved to a crank mechanism 21 to 23 (
Not shown in FIG. ), as shown in FIG. 3(A), the scraping rod 19, which is connected to the main shaft 16 via the scraping rod insertion plates 18A and 18B and has a brush 27 at its tip, moves into the hopper 11. It moves to the left while stirring the powder, and also moves back and forth to the right in the same way as shown in Figure (B). At this time, the scraping rod 19 removes starch, flour, etc. K between the scraping rod 19 and the hopper punching screen plate 13 formed at the bottom of the hopper 11.
As a result of reciprocating left and right (in the direction of the arrow in the figure) like a pendulum while pressing against three surfaces, the powder is discharged from the holes of the hopper punching screen plate 13, and the starch flour K is evenly scattered.

Further, for example, the hopper punching screen plate 13
Even if the hole becomes clogged from time to time due to moisture in the outside air, the cylindrical scraping rod 19 exerts a pressing force against the hole to push out the blockage, and as a result, the blockage is removed. is removed, and flour, etc., is evenly shaken out from the hopper punching screen plate 13.

〔Effect of the invention〕

As described above, the present invention provides a powder hopper with an arcuate bottom formed with at least a large number of discharge holes.
A main shaft is provided that is connected to a drive source and rotates in forward and reverse directions or in a fixed direction, and is connected to the main shaft via a scraping rod insertion plate and is placed close to the punching plate having the discharge hole. The device is characterized by a scraping rod that moves back and forth in a pendulum manner or rotates along the punching plate at a certain position, so that the scraping rod moves the flour, etc. into the arc-shaped bottom part of the punching plate through a large number of discharge holes. The scraping rod pushes the flour, etc. into the discharge hole,
As a result of forcibly discharging flour etc. from the discharge hole, clogging that occurs in conventional flour dusters can be reliably prevented.

Therefore, for example, in the process of manufacturing udon and soba noodles, bread, sweets, mochi, etc., it is possible to ideally and evenly sprinkle flour, etc. over these ingredients, regardless of whether they are before or after cutting. This eliminates problems such as balls and soba balls sticking together and not maintaining their shape, and udon and soba balls coming into contact with parts of the machine and disrupting the assembly line manufacturing process. This makes it possible to completely prevent situations where materials such as materials are wasted.

[Brief explanation of drawings]

FIG. 1 is a schematic configuration diagram of an embodiment according to the present invention, FIG. 2 is a schematic diagram of a moving section in a hopper, and FIGS. 4 and 5 are schematic diagrams of conventional dusting machines. 11... Hopper 13... Hopper punching plate 15... Motor 16... Main shaft, 18... Scraping rod insertion plate 19... Scraping rods 21 to 23, crank Mechanism K...Wheat flour, buckwheat flour, etc.

Claims (4)

[Claims] (1) A powder hopper whose bottom has an arcuate cross-sectional shape and a large number of discharge holes is provided with a pendulum-like reciprocating motion or rotational motion to a scraping rod that comes into contact with the bottom of the hopper. and the scraping rod, the powder is stirred and pressed, and the powder inside the hopper is forcibly discharged from a hole at the bottom of the hopper. (2) A flour hopper having an arcuate cross-sectional shape and a number of discharge holes formed at the bottom, and a scraping rod that reciprocates in a pendulum-like manner along the arcuate shape at a position where it abuts the bottom. a scraping rod insertion plate into which the scraping rod is inserted and fixed, a main shaft to which the scraping rod insertion plate is attached and which gives a pendulum-like reciprocating motion to the scraping rod, and a main shaft that drives the main shaft in forward and reverse directions. A powder dusting device characterized by being equipped with a crank mechanism. (3) The scraping rod is at a position where it comes into contact with the bottom,
3. The powder dusting device according to claim 2, wherein the dusting device is a cylindrical or prismatic scraping rod that moves along the arc shape. (4) The scraping rod is characterized in that a brush is disposed in the contact portion.
Powder dispersion device as described in section.