JPH08131954A - Rotary swing type screen classifier - Google Patents

Abstract

PURPOSE: To enable a rotary swing type screen classifier to cope effectively with variation in an amount of bulk material to be treated by providing one side screen acceptor so as to be exchangeable for a gravity center balancer keeping balance with a weight of the other screen acceptor in a system wherein screen acceptors in which a plurality of screen nets are arranged up and down on both sides of a rotary driver, are connected to each other. CONSTITUTION: A rotary swing type screen classifier 1 is composed of a screen acceptor 2, a rotary driver 3, and a screen acceptor 35, and many screen frames are piled up in each screen acceptor 2, 35. Further, each screen acceptor 2, 35 is fixed in a screen accepting frame 7, 36, a lower part of a side frame 8 of the screen accepting frame 7 is connected to a connecting lever 34 via a connecting tool 9, and a side face of each screen acceptor 2, 35 is connected to a side face of the rotary driver 3 with a bolt. Then, a lifting rod 11 and a lower end of a wire 12 are fixed to the connecting lever 34 with a fitting tool 13, and the lifting rod 11 and an upper end of the wire 12 are fixed to a post 15 with the fitting tool 13. The rotary driver 3 can adjust a size of rotary swing motion of the screen classifier 1 by varying an opening of a weight device 23.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a swirling and sieving type sieving machine for sieving a powder or granular material such as wheat flour, which is supplied onto an oscillating screen.

[0002]

2. Description of the Related Art Conventionally, a swirling type sieving machine has been widely used in a flour mill or the like to classify the grain size of a powder or granular material such as wheat flour. This will be described with reference to FIGS. 9 and 10.

The swing rocking type sieving machine 41 shown in FIG.
Attachments 44, 44 connected to the upper ends of the suspension rods 43, 43 attached to 9 are fixed to a support column 45, and a machine body 49 is swingably supported by the support column 45. Both sides of the machine body 49 are used as the sieve containing bodies 42, 42, and a plurality of sieve meshes (not shown) are vertically arranged in the sieve containing bodies 42, 42. Sieve container 42, 4
A raw material supply gutter 46 is connected to the upper side of 2, and a discharge tube 47 is connected to the lower side. The center of the machine body 49 is used as a swing drive device 48, and a balancer (not shown) having a weight eccentric to the sieving machine 41 and a motor (not shown) for rotating the balancer are provided inside the swing drive device 48. Set up.

Next, the operation of the above configuration will be described. When the motor of the turning drive device 48 is started, the balancer rotates, and by rotating the balancer, the main body of the sieving machine 41 is swung by the reaction against the centrifugal force of the eccentric weight. Granules such as wheat flour flow down the supply gutter 46,
The powder particles are supplied to the uppermost sieve screen in the sieve containing bodies 42, 42, and the powder particles are sieved by the swinging action of the sieve screen. The powder and granules sequentially pass from the upper screen to the lower screen, and are sieved in each screen, and the screened powder and granular material is a discharge pipe provided below the sieve containers 42, 42. It is discharged out of the machine from 47.

The swinging and oscillating type sieving machine 41 of FIG. 9 is used in a relatively large-scale mill having a large amount of processing, but in a relatively small-scale mill having a small amount of processing, FIG. I am using the swing rocking type sieving machine. The swing rocking type sieving machine 41A (FIG. 10) has suspension bars 43, 43 mounted on a sieve container 42 in which a plurality of sieve screens (not shown) are vertically arranged.
, And fittings 44, 44 connected to the upper ends of the suspension rods 43, 43 are fixed to the support column 45, so that the support column 45 swingably supports the sieve container 42. A raw material supply gutter 46 is connected to the upper side of the sieve container 42, and a discharge tube 47 is connected to the lower side thereof. The operation is the same as that of the swing-and-vibrator of FIG.

[0006]

In a relatively large-scale mill such as a large-scale mill that processes a large amount of powder and granules, the slewing type sieving machine shown in FIG. 9 is used. When the swirling and oscillating type sieving machine of No. 1 has an excessive processing capacity, it is necessary to supply the powdery particles to only one supply gutter and perform the screening with the sieving net arranged in the sieving container on one side. On the other hand, when the amount of powder or granular material to be processed increases and the sieving machine of FIG. 10 cannot process the sieving machine, it is necessary to add another sieving machine or purchase the sieving machine of FIG. As described above, the conventional swing rocking type sieving machine has a drawback that it cannot effectively cope with an increase or decrease in the throughput of the powder or granular material.

The present invention solves the above-mentioned drawbacks of the conventional swing oscillating type sieving machine and provides a slewing oscillating type sieving machine which can effectively cope with increase and decrease of the throughput of powder and granules. With the goal.

[0008]

Means for Solving the Problems A plurality of sieve nets having a plurality of sieve nets arranged vertically are connected to both side surfaces of a swivel drive device, and a supply unit for powder particles is provided above the both sieve nets. A swirl-and-swive type sieve in which a discharge portion for the sieved powder and granules is provided below each of the sieve containers, and the swivel drive device and the sieve containers are connected to a suspension mechanism such as a suspension rod. In the separator, the connection between the swivel drive device and the sieve container is detached so that one of the sieve containers can be replaced with a center of gravity balancing device that maintains balance with the weight of the other sieve container. A freely swinging and sieving type sieving machine.

A weight-adjustable weight mechanism is provided inside the center of gravity balancing device.

[0010]

When the turning drive device is actuated, the turning rocking type sieving machine body rocks, and the raw material powder is supplied from the supply section to the uppermost sieve net in the sieve container. The powder and granules are sieved by the sieving action of the sieve mesh, and the powder and granules sequentially pass from the upper sieve mesh to the lower sieve mesh, and are sieved in each sieve mesh, and the sieved powder The granules are discharged to the outside of the machine from a discharge cylinder provided below the sieve container.

In the above-described swing-and-swivel type sieving machine, if the amount of powder or granular material to be processed decreases, and the current processing capacity becomes excessive,
One sieve container is removed from the swivel drive, and the center of gravity balancing device is attached to the swivel drive. On the contrary, when the throughput of the powder and granular material is increased, the newly installed center-of-gravity balance device is removed from the swivel drive device, and the sieve container is attached to the swivel drive device.

Further, the weight of the weight mechanism provided inside the center-of-gravity balancing device is adjusted to maintain the weight balance with the sieve container.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view of a swing-and-rock type sieving machine embodying the present invention, FIG. 2 is a right side view of the sieving machine, FIG. 3 is a plan view of the sieving machine, and FIG. 4 is a bottom view of the sieving machine. 5 is a front view showing the inside of the center-of-gravity balance device, FIG. 6 is a plan view showing the inside of the center-of-gravity balance device, FIG. 7 is a front view of a swivel-type sieving machine equipped with the center-of-gravity balance device, and FIG. FIG. 3 is a diagram showing the flow of a sieve mesh and stock.

The swing rocking type sieving machine 1 comprises a sieve containing body 2, a swing drive device 3 and a sieve containing body 35. A large number of sieve frames 5 are directly stacked in the sieve container 2 and the sieve container 35, and the sieve frame 5 has a mesh screen 6 stretched with wire mesh, silk, and nylon.
Is provided. The wire mesh sieve is used for sieving coarse particles, the silk sieve is used for sieving up powder and Midrings, and the nylon sieve is used for the same purpose as the silk sieve. As a symbol indicating the type of sieve mesh, the wire mesh is W, the semolina sieve is GG, and the upstream powder sieve XX.
And the N symbol on nylon sieves. In this embodiment, 14 sieve frames 5 are stacked in the sieve container 2 (see FIG. 8), and the stock supplied from above is classified into 5 types according to particle size.

The sieve container 2 and the sieve container 35 are the sieve container frame 7.
And the sieve housing frame 36 are fixedly provided, and the sieve housing frame 7
The lower part of the side frame 8 is connected to the connecting rod 34 via the connecting tool 9. The side surface of the sieve container 2 and the side surface of the swivel driving device 3, and the side surface of the swivel driving device 3 and the side surface of the sieve container 35 are connected to each other by bolts (not shown) to integrally form a swivel-type rocking type sieving machine. 1 is formed.

The lower ends of the flexible hanging rod 11 and the wire 12 are fixed to the connecting rod 34 by a fitting 13, and the hanging rod 11
The upper end of the wire 12 and the wire 12 with the fixture 13
It is fixed to the support pillar 15 of No. 4. The support column 15 is fixed to a horizontal column 16, and the horizontal column 16 has its front end portion and rear end portion fixed to columns 17 and 17, and the column 17 is fixed to a base such as concrete by a fixture 18. Two supply cylinders 19 and 38 are attached to the upper surfaces of the sieve containers 2 and 35, and a plurality of discharge cylinders 20 and 50 are attached to the lower surfaces of the sieve containers 2 and 35. Supply cylinder 19,
Supply gutters 21, 21 close to above 19 and 38, 38
And 40, 40, and supply gutters 21, 21 and 40, 4
0 to a powder supply tube (not shown).

The turning drive device 3 has a weight device 23 attached to a rotary shaft 22 which is rotatably provided upright. The weight device 23 can change the opening degree, and by changing the opening degree, the magnitude of the turning and swinging motion of the turning and swinging type sieving machine 1 is adjusted. 24 is a motor, the motor 24 is a pulley,
The rotating shaft 22 is rotated by a transmission mechanism (not shown) such as a belt.

Next, the operation of the above configuration will be described. When the motor 24 is activated, the rotary shaft 22 of the turning drive device 3 rotates via a transmission mechanism (not shown), and the weight device 23 rotates as the rotary shaft 22 rotates. By rotating the eccentric weight device 23, the main body of the sieving machine 1 is swung by the reaction against the centrifugal force of the weight device 23. The milled wheat (stock) crushed by the brake roll of the mill for milling mill (not shown) is supplied from the supply pipe (not shown) to the supply gutter 2
1, 40, and the supply cylinders 19, 3 of the sieve containing bodies 2, 35
8 and is supplied from the supply cylinders 19 and 38 onto the sieve mesh 6 of the sieve frame 5 (see FIG. 8). The stock that has passed the four 18 W sieve nets 6 is supplied to the brake rolls of the next milling roll machine, and the stock that has passed through the 18 W sieve nets 6 is supplied to the 40 NGG sieve net 6. The stock that has passed the 40 NGG sieve mesh 6 is supplied to a purifier (not shown), and the stock that has passed through the 40 NGG sieve mesh 6 is supplied to the 68 NGG sieve mesh 6. 68NG
The stock that has passed the G mesh screen 6 is supplied to another purifier, and the stock that has passed through the 68 NGG mesh screen 6 is supplied to the 11 NXX to 12 NXX mesh screen 6. 1
The stock that has passed the 1NXX to 12NXX sieve mesh 6 is supplied to the smooth roll of the mill for the mill,
The stock that has passed through the sieve mesh 6 of NXXX to 12NXX is extracted as powder.

In the swirling and oscillating type sieving machine 1 of the above embodiment, even if the throughput of the stock is reduced and the present sieving machine 1 has an excessive processing capacity, it can be easily dealt with as described below. can do. First, the bolt of the connecting tool 9 is removed to release the connection between the sieve housing frame 7, the swivel drive device 3, and the sieve housing frame 36 and the connecting rod 34, and then the bolt that connects the swivel drive device 3 and the sieve housing body 35. Remove the sieving machine 1
The sieve container 35 is removed from the. Connecting rod 34 to connecting rod 1
The value is converted into 0 (see FIG. 7), and the center of gravity balancing device 4 is connected to the turning drive device 3 by bolts. The side frame 8 of the sieve container 2, the swivel drive device 3, and the center-of-gravity balance device 4 are connected to the connecting rod 10 via the connecting tool 9 to integrally form the swivel-type sieving machine 1.

The center-of-gravity balancing device 4 is formed by a bottom plate 25, a side plate 26 and a connecting rod 27 into a frame body, and upper ends of the side plates 26, 26 are connected by an upper rod 28. A weight attachment rod 29 is provided upright between the bottom plate 25 and the upper rod 28, and a large number of screw holes 31 for attaching the weight 30 to the weight attachment rod 29 are provided. The weight 30 is provided with a bolt insertion hole 32, the mounting bolt 33 is inserted into the bolt insertion hole 32, and the mounting bolt 33 is screwed into the screw hole 31, thereby fixing the weight 30 to the weight mounting rod 29. To do.
By increasing or decreasing the number of weights 30 attached to the weight attachment rod 29,
The weight of the sieve container 2 is adjusted, and the swinging and swinging type sieving machine 1 is used.
Maintain the balance of the center of gravity of.

The center-of-gravity balancing device 4 is not limited to the above-mentioned configuration, and the balance of the center of gravity may be maintained by a configuration in which the weight is moved in and out.

The operation of the above construction is the same as the operation of the swing rocking type sieving machine 1 shown in FIG. 1, and the stock supplied to the sieve mesh 6 of the sieve container 2 and the sieve mesh 6 of the sieve container 35 is ,
By the swinging motion of the sieving machine 1, the particles are classified into a predetermined particle size.
Thus, even if the throughput of stock is reduced, it can be easily dealt with by removing one sieve container 35 from the swivel drive device 3 and then attaching the center-of-gravity balance device 4. Furthermore, the installation area of the sieving machine 1 can be significantly reduced.

On the contrary, if the stock throughput increases, the newly installed center-of-gravity balancing device 4 is removed from the swivel drive device 3 and the sieve container 35 is attached to the swivel drive device 3 to easily deal with it. can do.

In this embodiment, the connecting rod 34 is replaced with the connecting rod 10 and the sieve accommodating frame 36 is removed before the center of gravity balancing device 4 is connected to the swivel drive device 3. The screen storage frame 36
The center-of-gravity balance device 4 may be connected to the turning drive device 3 with the attached. Further, in this embodiment, the hanging rod 11
The wire 12 and the suspension mechanism for the wire 12 are connected to the support device 14, but may be connected to a beam horizontally provided in a building such as a flour mill.

[0025]

According to the swiveling and sieving type sieving machine of the present invention, since the swiveling drive device and the sieve container are detachably formed, the throughput of the powder and granules is reduced. Even if the sieving apparatus has an excessive processing capacity, it can be easily dealt with by removing one sieve container from the swivel drive and attaching the center of gravity balancing device to the swivel drive. On the contrary, when the throughput of the granular material is increased, it can be easily dealt with by removing the attached center-of-gravity balancing device from the swivel drive device and attaching the sieve container to the swivel drive device.

Further, the weight-adjustable weight mechanism is provided inside the center-of-gravity balancing device, so that it is possible to support various types of sieve accommodating bodies having different weights.

[Brief description of drawings]

FIG. 1 is a front view of a swing rocking type sieving machine embodying the present invention.

FIG. 2 is a right side view of the swing rocking type sieving machine.

FIG. 3 is a plan view of a swing rocking type sieving machine.

FIG. 4 is a bottom view of the swing rocking type sieving machine.

FIG. 5 is a front view showing the inside of the center-of-gravity balance device.

FIG. 6 is a plan view showing the inside of the center-of-gravity balance device.

FIG. 7 is a front view of a swing rocking type sieving machine.

FIG. 8 is a diagram showing a flow of a sieve mesh and a stock.

FIG. 9 is a front view of a conventional swing rocking type sieving machine.

FIG. 10 is a front view of a conventional swing rocking type sieving machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 oscillating swing type sieving machine 2 sifting container 3 slewing drive device 4 center of gravity balancing device 5 sifter frame 6 sieving mesh 7 sieving housing frame 8 side frame 9 connecting tool 10 connecting rod 11 hanging rod 12 wire 13 mounting tool 14 supporting device 15 Support Column 16 Horizontal Column 17 Strut 18 Fixture 19 Supply Cylinder 20 Discharge Cylinder 21 Supply Gutter 22 Rotating Shaft 23 Weight Device 24 Motor 25 Bottom Plate 26 Side Plate 27 Connecting Rod 28 Upper Rod 29 Weight Weight Mounting Rod 30 Weight 31 Screw Hole 32 bolt insertion hole 33 mounting bolt 34 connecting rod 35 sieve container 36 sieve container 37 side frame 38 supply cylinder 40 supply gutter 41 swivel-type sieving machine 42 sieve container 43 suspension rod 44 fixture 45 support column 46 supply Gutter 47 Exhaust pipe 48 Slewing drive device 49 Airframe 50 Exhaust pipe

Claims (2)

[Claims] 1. A swivel drive device is provided with a plurality of sieve screens vertically arranged on both sides of the swivel drive device. In the swivel swing type sieving machine, which is provided with a discharge unit for the powder particles that have been sieved below the container, and which connects the swivel drive device and both of the sieve containers to a suspension mechanism such as a suspension rod, The connection between the swivel drive device and the sieve container is detachably formed so that one of the sieve containers can be replaced with a center-of-gravity balancing device that maintains balance with the weight of the other sieve container. A swing-and-swivel type sieving machine characterized in that 2. The orbiting swing type sieving machine according to claim 1, wherein a weight-adjustable weight mechanism is provided inside the center of gravity balancing device.