JPH09108588A - Disintegrator for agglomeration of granular material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for automatically disintegrating an agglomeration of raisins. SOLUTION: A pair of vibrating motors 26a is mounted to a wing board constituting a part of frame in which screens 29, 30, 31, whose meshes become smaller downwardly, are stretched over a trough 21 to generate straight-line vibration in the trough 21. An agglomeration of raisins is supplied to an upstream side end of the screen 29 on the uppermost stage. Individually disintegrated raisins are fed to a raisin feed device on the downstream side through a discharge opening 21aa.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a loosening machine for agglomerates of powder and granules.

[0002]

2. Description of the Related Art Powdered materials such as raisins collected in a large amount and vacuum-packed in a compressed state are commercially available. To loosen each of them, open a vacuum-packed container, This was put in a basket, soaked in water, and shaken up and down to loosen the raisins as agglomerates. This kind of work is hard work, and when the powder and granules are such raisins, the sugar content will melt out and the surrounding environment will deteriorate, giving rise to a peculiar odor and a bad working environment. Met.

[0003]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above problems and is not limited to raisins. Generally, a granular material is compressed into an agglomerate, and the granular material is automatically used as an individual. It is an object of the present invention to provide a loosening machine for agglomerates of powder and granular material that can be loosened.

[0004]

[Means for Solving the Problems] The above object is to vibrate a frame body in which at least one screen is stretched, supply agglomerates of powdered or granular material to be loosened on the screen, and transfer by vibration. The granular material is characterized in that the agglomerate is loosened while being agitated, the loosened granular material is dropped through the screen, and the lower transfer bed is vibrated to be discharged outward. Achieved by the agglomerate loosening machine.

[0005]

The agglomerate of powdered material, for example, raisins, which is supplied onto the screen, is transferred forward by vibration, receives the upper and lower components of this vibration force, and collides with the screen again and again. The agglomerates of powder and granules are disassembled by this high frequency impact force, and eventually they are individually loosened by the powder and granules that are the constituents of the aggregates, and when they become smaller than the eyes of the screen, they fall downward, and The transfer bed, which is a part, is transferred by vibration and discharged to the outside.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A raisin agglomerate loosening device according to an embodiment of the present invention will be described below.

1 to 3 show a raisin agglomerate loosening device according to an embodiment of the present invention, which is generally
, The raisin agglomerate supply conveyor 2 supplies the raisin agglomerates M to the raisin agglomerate loosening machine 3 according to the present invention. As will be described later, the raisins that have become individual grains are supplied to a raisin supply device 40 including a vibrating part feeder 4, a first linear vibrating feeder 5, and a second linear vibrating feeder 6.

The raisin agglomerate supply belt conveyor 2 is
The belt 7 with crosspieces is used to erect the crosspieces 8 at a predetermined interval. This interval is large enough to receive the raisin agglomerates M with a certain degree of play, as indicated by the chain line. The flexible belt 7 is wound around a driving roller 12 and a driven roller 13 and is run in a direction indicated by an arrow. Further, the guide belts 14, 15a, 15b, 16a which are a pair of left and right inside and outside the belt 7 are formed. , 16
It is guided in the shape shown by b, 17a and 17b. The belt 7 includes a driving roller 12, a driven roller 13, guide rollers 14, 15a, 15b, 16a, 16b, 1
It is supported by a pair of left and right columns 9a, 9b, 10a, 10b on an inner race of a bearing that rotatably supports 7a, 17b, which is movably supported on a floor S by casters 11. The caster 11 is provided with a lock mechanism, which is not shown.

Next, the loosening machine 3 for raisin agglomerates according to the present invention will be described in detail.

A pair of left and right blades 22a and 22b are fixed to the bottom wall of the generally rectangular trough 21, and according to the present embodiment, a frame F is formed by the trough 21 and the blades 22a and 22b. As shown in FIGS. 1 and 3, the wing plates 22a and 22b have a pair of left and right vibration motors 26a and 26b.
Are fixedly attached at the same inclination as shown.
As is well known, the vibration motors 26a and 26b are induction motors (for example, 4-pole type), and approximately semicircular non-parallel weights are attached to both ends of their rotation shafts. Therefore, when a commercial AC power source is connected to this, a circular excitation force is generated in each of the vibration motors 26a and 26b.
The trough 21 is supported by coil springs 25 on columns 23a, 23b, 24a, 24b, which is a vibration isolation spring, but is sufficiently soft. As is well known, when connected to the same commercial AC power source, the rotary shafts of the vibration electric motors 26a and 26b rotate in opposite directions at the same speed and in the same phase even though they are not connected by a gear, and by the combination of the circular exciting forces. A linear vibration force is generated in a direction perpendicular to that, that is, in the direction of arrow a. The vibration motor 26 of the present embodiment
a and 26b are 1500 to 1 depending on the frequency of the power source.
It has a frequency of 800 RPM and an amplitude of 30 to 40 mm.
As indicated by the arrow a, the vibration angle is considerably larger than that of a normal vibration feeder, and in this embodiment, it is about 75 degrees with respect to the horizontal line.

The lower ends of the columns 23a, 23b, 24a, and 24b are fixed to a base 27, the base 27 is supported by four casters 28, and a lock mechanism is also provided although not shown.

As shown in FIG. 4, in the trough 21, screens 29, 30, and 31 made of wire mesh, whose mesh size is gradually reduced from the upper side, are stretched from the top, as shown in FIG. In the vicinity of the upstream end of the screen 29, the three needle-shaped bodies 19 are upright. Also, this screen 2
The downstream end of 9 is curved upward in an arc shape, as also clearly shown in FIG. Further, a jet water supply pipe 32 is arranged immediately above the trough 21, and a plurality of nozzles 32a are attached downward to this.
Water under pressure is supplied to this via a pipe 33. The bottom wall 21a of the trough 21 serves as a transfer floor for supplying the individually loosened raisins m to the outside. The discharge port 21aa is supplied to the downstream end of the transfer bed 21a, and the individual raisins m discharged from this are supplied to the raisin supply device 40. Since the vibrating feeder 5 and the second linear vibrating feeder 6 have known configurations, detailed description thereof will be omitted. The entire raisin supply device 40 is mounted on the base 34, and is also supported on the floor S by the casters 35.

The raisin agglomerate loosening device 1 according to the embodiment of the present invention is constructed as described above. Next, its operation will be described.

In FIG. 1, raisin agglomerates M from which the vacuum pack container has been removed are supplied from the left by a crosspiece 8 so as to be separated from each other. Since the belt 7 is running in the direction shown by the arrow, the belt 7 is supplied to the raisin agglomerate loosening machine 3 from the discharge end in FIG. It is supplied to the left end portion of the uppermost screen 29 stretched over the trough 21 in FIG. 3, but is supplied with the longitudinal direction of the agglomerate M oriented in a substantially horizontal direction and to the needle-shaped body 19. Pierce. Although the raisin agglomerates M were vacuum-packed, the density of the raisins m was so high that even if the raisins m were stuck into the needle-shaped bodies 19, the raisins m were hampered from being transferred due to their vibrations. The component in the vertical direction is sufficiently large in the direction of a, and the transfer speed due to vibration is sufficiently small. Therefore, while being pierced by the needle-shaped body 19 and receiving a large vertical component, it is transferred to the right in the figure at a small speed,
At this time, the loosening action of the needle-shaped body 19 is added and the loosening progresses considerably, and the raisins m are not yet individually separated by the time they pass through this, but a considerable amount is smaller than the mesh size of the screen 29. It becomes M '. As clearly shown in FIG. 6, the vibration angle is 75 on the uppermost screen 29.
Since it is relatively large, it is transferred at a small transfer speed. However, if necessary, an agglomerate Ma larger than the mesh size of the screen 29 is stretched over the curved portion 29a at the downstream end, where 1500 to It receives an impact force in the vertical and horizontal directions at a frequency of 1600 RPM and receives a large loosening action. Since a similar mesh 29aa is also formed on the curved portion 29a, the agglomerate M'which is smaller than this mesh falls on the second screen 30 from here. Further, there is a case where the bending portion 29a receives an electric action and an upside-down action, so that the impact force is preferentially applied only to the lower portion until then. All the agglomerates Ma that have been in abutting contact with the screen 29 directly to the curved portion 29a due to the larger loosening action and keep the agglomeration state persistently have the size of the mesh 29aa. It becomes smaller than this and falls on the second-stage screen 30. While falling on the second screen 30 and being slowly transferred to the right by vibration, it receives a large vertical component 1500
Through the frequency of 1 to 1800 RPM, the vehicle moves to the right while receiving an impact force from the screen 30. During the transfer due to this vibration,
It is further fragmented into lumps of M ″ and drops onto the screen 31 of the third stage. The raisin agglomerate M ′ that keeps its agglomeration persistently collides with the right end wall of the trough 21. However, after repeating this several times, this persistent mass M ′ passes through the second screen 30 and drops onto the third screen 31. Here again, the second screen 30 The lumps smaller than this mesh, that is, the individual raisins m which have been separated by the same action as
The vibration parts feeder 4 is disposed on the most upstream side of the raisin supply device 40 after passing through the discharge opening 21aa formed at the downstream side end.
Supplied to This vibration parts feeder 4 is a raisin m
Is supplied to the first linear vibrating feeder 5 and the second linear vibrating feeder 6, and it is possible to discriminate foreign substances, such as strings and twigs, with the naked eye of the operator as a sufficiently sparse state during this transfer. Then remove it by hand.
Of course, an image pickup camera with artificial intelligence (illustrated) may be adopted, and foreign matter may be adsorbed by some adsorption means by this image pickup signal and automatically discharged to the outside.

On the other hand, water is jetted from the nozzle 32a of the water jetting device 32 arranged immediately above the trough 21, and this is sprayed on the raisin agglomerates M slowly transferred on the uppermost screen 29. By doing so, the loosening action is further promoted, but it is water in the form of spray,
Water is hardly absorbed by the uppermost raisin agglomerate M and the transfer floor 21a of the bottom wall portion hardly accumulates. You may make this water come out. Further, in this case, the transfer floor 21a is not in the horizontal direction as shown in FIG.
In the above, it may be inclined downward to the left.

In this embodiment, the raisin m is described as the powder material, but since it is a food product, it is necessary to attach importance to the sanitary environment, and the lock mechanism of the casters 11, 28 and 35 is removed. It is transported to a washing place and washed regularly with water or alcohol, for example, every day. Further, the screens 29, 30, 31 stretched in the trough 21 of the loosening machine 3 can be easily removed, and if they are removed, and if there is clogging of debris due to the raisins m, they can be removed during this cleaning. . The same applies to the other devices 2 and 40.

After the cleaning, the casters 11, 28 and 35 can be manually moved to place them in the positional relationship shown in FIGS. 1 and 2.

Although the embodiment of the present invention has been described above, the present invention is not limited to this, and various modifications can be made based on the technical idea of the present invention.

For example, in the above embodiments, raisins have been described as the powder particles, but of course, the present invention is not limited to this, and other powder particles are compressed into a rectangular parallelepiped shape as in the embodiments, for example. It can also be applied to loosen lumps.

In the above embodiment, the water injection device 32 is arranged directly above the trough 21, but it may be omitted depending on the case. Further, three stages of screens 29, 30, and 31 are stretched in the trough 21, but this may be one stage, and depending on the shape and properties of the powder or granular material to be loosened, the upstream side The needle-shaped body 19 arranged at the end may be omitted.

Further, in the above embodiment, a pair of vibration electric motors 26a and 26b are provided as the vibration exciter, but instead of this, a conventionally known vibration exciter, for example, a crank type vibration exciter, an electromagnet drive mechanism. , Various types of exciters such as centrifugal force generator by rotating unbalanced weight are used.
In the case of the raisin agglomerate M as in the above embodiment, since it is difficult to loosen it, the loosening is effectively performed with the vibration of 1500 to 1800 RPM and the amplitude of 20 to 30 mm (frequency and amplitude). Can be arbitrarily selected in the raisin agglomeration state.Therefore, there are two unbalanced weights connected to the inverter or fixed to both ends of the drive shafts of the vibration motors 26a and 26b. The exciting force may be changed by changing the target angle (for example, a good result is actually obtained with a frequency of 880 RPM and an amplitude of 6 mm). Therefore, the vibration exciter may be selected according to the shape of the granular material to be loosened. Further, although the direction of the linear vibration a by the pair of vibration motors 26a and 26b is set to 75 degrees with respect to the horizontal direction, the inclination may be further increased to be near 90 degrees. In any case, if it is 90 degrees or less, it can be transferred by the horizontal component, and
The vertical component can increase the impact force on the screens 29, 30, 31. Note that, as is clear from the transfer theory by vibration, the transfer speed becomes maximum when the vibration angle is near 25 degrees, so this angle is set in a normal vibration feeder. However, according to the present invention, as described in the above embodiment, it is 75 degrees, which is far from this optimum value, but the vertical component is much larger than that of a normal vibrating feeder, and the loosening effect aimed at by the present invention is obtained. It can be done effectively. Furthermore, since it is not a vibration in the vertical direction, it also has a horizontal transfer component, so that it is subjected to the above-mentioned loosening action while being transferred at a small transfer speed on each screen. The raisins m that have fallen into pieces when dropped on the wall 21a can be individually transferred and supplied from the discharge openings 21aa to the raisin supply device 40 in the next step.

In the above embodiment, the upstream end of the first-stage screen 29 is the curved portion 29a.
Like the screens 30 and 31 of the third and third steps, the screens may not be curved. However, as described above, in the case where the curved portion is formed, as shown in FIG.
The vertical and horizontal impact forces are received at a frequency of 0 RPM, and eventually pass through the mesh 29aa and the second stage screen 3
Can fall on zero. However, it may be omitted depending on the shape and properties of the powder material.

In the above embodiment, the screen has three stages and the mesh is made smaller as it goes downward. However, the impact force applied to the raisin agglomerate M can be minimized as described above while efficiently loosening it. Can be done. Therefore, the separated raisins m transferred on the transfer bed 21a can be supplied to the raisin supply device 40 on the downstream side with almost no damage. Therefore, the number of steps is 5
If the number of steps is increased to 6 steps, the effect is greater as it is more easily damaged depending on the material of the powdery material to be loosened.

[0024]

As described above, according to the loosening machine for agglomerates of powder and granules of the present invention, even agglomerates for persistently holding agglomerates such as raisins can be quickly and It can be automatically loosened as individual raisins. Of course, since it is automatic, it has no effect on human health and environment.

[Brief description of the drawings]

FIG. 1 is a side view of a raisin agglomerate loosening device according to an embodiment of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a front view of the same.

FIG. 4 is an enlarged sectional view of the main part.

FIG. 5 is a partially enlarged cross-sectional view of the main part for explaining the same action.

FIG. 6 is an enlarged cross-sectional view of another main part.

[Explanation of symbols]

 1 raisin agglomerate loosening device 3 raisin agglomerate loosening machine 19 needles 21 trough 22a vanes 22b vanes 26a vibration motor 26b vibration motor 29 screen 30 screen 31 screen 32 water spray device F frame

Claims (7)

[Claims] 1. A frame in which at least one screen is stretched is vibrated to supply an agglomerate of powdery or granular material to be loosened on the screen, and the agglomerate is loosened while being transferred by vibration to loosen the agglomerate. A loosening machine for an agglomerate of powdered or granular material, wherein the powdered or granular material is dropped through the screen, and the lower transfer bed is transferred by vibration to be discharged outward. 2. The loosening machine for agglomerates of powder and granules according to claim 1, wherein the vibration exciter for vibrating the frame comprises a pair of vibration electric motors mounted on both sides of the frame. 3. The inclination angle of the linear vibration force generated by the pair of vibration motors with respect to the horizontal line is greater than 30 degrees.
A loosening machine for the agglomerate of the powdered or granular material according to. 4. The loosening machine for an agglomerate of granular material according to claim 1, wherein a downstream end of the uppermost screen of the screen is curved upward. 5. The loosening machine for agglomerates of powder and granules according to claim 1, wherein a water jet nozzle is arranged above the screen. 6. A plurality of needle-shaped bodies are erected at the upstream end of the uppermost screen of the screen.
A loosening machine for the agglomerate of the powdered or granular material according to. 7. The powdery or granular material is raisins.
7. A loosening machine for the agglomerate of the powder or granular material according to any one of 6.