JPS62157142A - Granular material filling device - Google Patents

Abstract

PURPOSE:To automate a work ranging from setting to filling, by a method wherein a mechanism, conforming to the opening part of a container bag, is situated to the outer periphery of a chute so that the mechanism is vertically movable relatively to the opening. CONSTITUTION:In a position right below a chute 2, an empty container bag (b) is raised toward the chute 2 by pushing up a pallet 12 by means of a lifter 14. When the container bag (b) is raised, a magnetic adsorbing body (d), attached to an opening part (c), is adsorbed to an electromagnet 3, and the container bag (b) is set to the chute 2. Upon completion of the setting, air is delivered in the container bag (b) through driving of a fan 8 as the lifter 14 is lowered. The feed of the air causes inflation of the container bag (b), and forces a granular material (a), e.g., raw material, product, to be dropped in the inflated container bag, resulting in facilitation of a filling work.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a powder filling device that automatically fills a powder or granule such as a raw material product into a container bag from a mixer or a hopper.

[Conventional technology]

Normally, when filling powder and granular materials such as raw materials and materials from a hopper or mixer into a container bag, the filling operation is often performed manually. For example, by hooking the container bag's hanging string to a powder filling hopper or mixer,
The work of inserting the input port of a container bag into a hopper or mixer chute and tying the input port with a string was performed manually. However, during filling, a large amount of dirt and grime is generated, creating a poor working environment, which is disliked by workers. New workers were needed for the additional work.

In order to reduce the number of currently unnecessary workers, automating the filling process is being considered. for example,
A device has already been proposed in which a bifold opening is attached to the container input opening, and the container is manually set on a hanging device, and then the container is filled mechanically.

[Problem that the invention seeks to solve]

However, the proposed filling device did not perform the filling operation fully automatically, and still required manual labor to set the container bag. In addition, the problems associated with filling operations, which tend to worsen the working environment in factories due to the lack of consideration given to the working atmosphere, remain unresolved.

SUMMARY OF THE INVENTION In view of these problems with the prior art, it is an object of the present invention to automate operations from setting to filling container bags.

[Means for solving problems]

In order to achieve the purpose of the powder/granular material filling device of the present invention,
A mechanism that matches the opening of the container bag is provided on the outer periphery of the chute disposed below the container that stores the powder and granular material so that it can move up and down relative to the opening. One end of an exhaust pipe that captures the dust is placed adjacent to the chute, the other end of the exhaust pipe is connected to a dust collector, and a dust transport pipe is connected from the dust collector to return the dust separated from the gas into the chute. It is characterized by facing the inside of the chute.

Here, one end of the exhaust pipe may be placed either inside or outside the chute.

Further, the chute may be provided directly below the powder storage container, or may be separately provided below the powder storage container.

〔Example〕

Hereinafter, features of the present invention will be specifically explained with reference to embodiments shown in the drawings.

FIG. 1 shows an example in which an exhaust pipe 5 is arranged adjacent to the outer periphery of a chute separately provided below the powder storage container, and the chute is attached to the lower part of the hopper via a bellows. When using this system, it is possible to install equipment including a soyute and a collector as a single set in various hoppers.

Further, FIG. 2 shows an example in which an exhaust pipe 5 is arranged adjacent to the outer periphery of a chute provided directly at the lower part of the powder storage container.

A chute 2 that is directly provided at the bottom of the hopper 1 that accommodates powder and granular materials a such as raw materials and products, or that is separately placed below the hopper 1.
As shown in FIG. 2, an appropriate number of drive mechanisms 4 are arranged around the lower part of the bag to move up and down electromagnets 3, which are detachable from a magnetic adsorbent d fixed to the opening C of the container bag b. ing.

That is, since the opening C is pulled up by the drive mechanism 4 arranged around the chute 2, the opening C expands concentrically with respect to the chute 2 and is automatically fitted into the outer periphery of the chute 2. In the example shown in Fig. 2, the tip of the chute 2 and the opening C of the container bag b are aligned by magnetic adhesion, but the vacuum suction and automatic gripping device are not restricted by the gap. Alternatively, it is also possible to employ other means having appropriate positioning capabilities.

An exhaust pipe 5 is further arranged around the outer periphery of the chute 2. The exhaust pipe 5 captures the dust generated when the container bag b is filled with the powder or granular material a around the opening C, and prevents the dust from scattering around the opening C. The exhaust pipe 5
is connected to piping 7 via dust collector 6. Dust collection N
A pipe 7 for transporting the gas from which dust has been removed in step 6 is connected to a pipe 9 facing the inside of the chute 2 via a fan 8. On the other hand, one end of a dust transport pipe 10 is connected to the bottom of the dust collector 6, and the dust transport pipe 10 transports the dust separated from the gas by the dust collector 6 into the container bag b via the chute 2 again. The other end opens into the chute 2 as shown in FIG.

Note that a gage 1 is attached to the lower end of the chute 2, and the gage H1 is opened and closed by appropriate means. In addition, as shown in Fig. 2 with symbol e, a closure material made of a shape memory alloy or a closure material that starts its movement triggered by the shape restoring force of the shape memory alloy is attached, and hot air, hot wire 1 energization, etc. When employing a method of heating the closing material e with an appropriate heating means, it becomes possible to open the opening C by remote control. In addition, if air leakage from the gap between the lower end of the chute 2 and the opening C of the container bag b becomes a problem, fill the gap with filler or the like as appropriate to prevent air leakage.

In the above example, the closure material made of shape memory alloy or the shape marking jI! A closure material is used that starts moving using the shape restoring force of the alloy as a trigger, but instead of the glue, a hard material such as metal or plastics is used and the opening C is opened and closed by twisting it. You can also do it.

Moreover, the pallet 12 on which the container bag b is placed is
It is transported by a roller conveyor 13 to a filling position directly below the hopper 1. At this filling position, a lifter 14 is arranged below the conhair surface. The lifter 14 is equipped with a load cell 15. This load cell 15 measures the weight of the granular material a filled in the container bag b,
When a mechanism is provided to issue a closing signal to the gate 11 when the value reaches a predetermined value, a predetermined amount of powder a is always filled into the container bag b.

FIG. 3 explains the filling operation according to the present invention step by step.

First, as shown in FIG. 3+al, an empty container bag b is taken out of a multi-storey warehouse or the like and placed on a pallet 12. Then, by pushing up the pallet 12 with the lifter 14 at a position directly below the chute 2, the pallet 1
2 on top! ! Shoot the placed empty container bag b 2
rise towards. An electromagnet 3 is installed at the bottom of the chute 2.
is attached, and the TL magnet 3 is excited in synchronization with the rise of the container bag b. That is, when the container bag b rises, the magnetic adsorbent d attached to the opening C of the container bag b is attracted to the electromagnet 3,
Container bag b is set on chute 2. This is the state shown in FIG. 3 fbl.

When the setting of the container bag b is completed, the lifter 14 is lowered and the fan 8 is driven to send air into the container bag b. By supplying the air, the container bag b expands, and the powder and granular materials a such as raw materials and products are contained therein.
The filling operation of dropping the liquid becomes easier. It is sufficient to blow air only for a short period of time after starting the filling operation. After that, positive pressure is generated within the container bag due to the filling of the powder and granular material, and the container bag is maintained in the open state.

At this time, the air sent into the container bag b by the fan 8 is discharged from the container bag b through the exhaust pipe 5 from a gap provided on the outer periphery of the chute 2. This discharged air contains dust, so it is collected by the dust collector 6.
Clean by passing through. The purified air is sent to the fan 8 via the pipe 7 and further circulated inside the chute 2 via the pipe 9. Also, the dust separated from the air can be used as part of the raw material or product to be filled.
The dust is returned to the container bag b via the dust transport pipe 10. This is the state shown in FIG. 3 (C1).

In this way, by flowing the air sent to inflate container bag b along the circulation system through the dust collector [6], dust and dirt that would conventionally be scattered within the factory during filling operations can be removed from the system. It can also prevent waste from being discharged. Therefore, the working environment will not be deteriorated.

A load cell 15 is attached to the lifter 14. This load cell 15 detects that the container bag b is filled with a predetermined amount of powder material a such as raw materials or products. Based on this detection result, the supply of the granular material a is stopped. When the electromagnet 3 is de-energized, the magnetic adsorbent d attached to the opening C of the container bag b separates from the electromagnet 3, resulting in the state shown in FIG. 3+d+.

Next, the parallel grid 2 on the lifter 14 is moved to the standby conveyor 1.
6 and close the opening C manually as shown in FIG. 3 (tel). In the case of this, a closing material e that utilizes the shape restoring force of a shape memory alloy is placed in a predetermined portion of the opening C.
If this is installed, the sealing work of the opening C can be performed automatically, and further labor savings can be achieved. Next, the container bag b filled with the powder material a such as raw materials and products is transported to a multi-level warehouse and stored there.

In the above example, air is blown into the container bag b to inflate the container bag b during the filling operation, but the air is blown into the container bag b to facilitate the filling of the powder or granular material a. It goes without saying that the same effect can be obtained not only with air but also with other gases. Further, when the opening C is raised and the lifter 14 is lowered in accordance with the filling speed of the powder material a, the filling operation can be carried out smoothly without the need to blow gas.

〔Effect of the invention〕

As explained above, in the present invention, the operation of filling powder and granular material from a mixer, a hopper, etc. into a container bag can basically be performed by remote control. Also,
Since the dust generated during filling is collected through the exhaust pipe and used again for filling, it is possible to fill the powder and granules without waste, and there is no risk of deteriorating the working environment.

Therefore, work automation and labor saving are achieved, and workers are freed from dangerous and unsanitary work.

[Brief explanation of drawings]

FIG. 1 shows an example in which the present invention is applied to a soyute separately provided below a hopper, and FIG. 2 shows an example in which the present invention is applied to a chute provided directly below the hopper. Moreover, FIG. 3 is a diagram explaining the filling operation in the order of steps.

Claims (1)

[Claims] 1. A mechanism that matches the opening of the container bag is provided on the outer periphery of the chute placed below the container for storing powder and granular material so that it can move up and down relative to the opening, and the chute is filled with powder and granular material. One end of the exhaust pipe that captures the dust generated during the air flow is placed adjacent to the chute, and the other end of the exhaust pipe is connected to a dust collector, and a dust transport pipe is connected to the chute to return the dust separated from the gas by the dust collector to the inside of the chute. A powder and granular material filling device characterized by having a dust collector facing into the inside of the chute.