JPS62157133A - Automatic filling device for granular material - Google Patents

Abstract

PURPOSE:To automate a work ranging from setting of a container bag to filling, by providing a heating means which automatically releases a port fastening material, utilizing the restoring force of a shape memory alloy. CONSTITUTION:A lifting lug (c) of a containing bag (b) is lifted up by means of a pair of electromagnets 12, and a bag body is secured in a place in a discharge hopper 5. In this case, the proper number of driving mechanisms 15 is diposed to the outer periphery of a chute 14, and an electromagnet 16 is mounted to the tip of a plunger being expanded and contracted thereby, and, meanwhile, a magnetic adsorbing body (f) is secured to the port edge of an upper throat (e). In which case, the upper throat (e) is automatically engaged with the outer periphery of the lower end of the discharge upper 5. When hot blast is blown against a port fastening tool (g) with the aid of a hot blast fan 17 for heating, a change in a shape, being characteristics of a shape memory alloy, is produced, and the upper thraot (e), hiterto fastened by a port fastening tool (g), is released to open a container bag.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is directed to transporting powder and granules from a container bag to a raw material hopper,
This invention relates to an automatic powder filling device that automatically transfers powder and granular material to another container bag through appropriate equipment such as a weigher and a mixer.

[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, the work of hooking the hanging string of a container bag to the powder filling water, collar, or mixer, inserting the container bag's inlet into a hopper or mixer chute, and tying the inlet with a string is done manually. Ta. However, during filling, a large amount of dirt and grime is generated, creating a poor working environment, which is disliked by workers. Additionally, new workers were required for this work.

Currently, in order to reduce the number of workers who can be said to be unnecessary,
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, the container is manually loaded into a hanging device, and then the container is filled mechanically.

[Problem that the invention seeks to solve]

However, this proposed filling device does not perform the filling operation fully automatically, and still requires manual labor to set the container hang. Further, the problems associated with filling operations, which tend to worsen the working environment in factories because no consideration is given to the working atmosphere, remain unsolved.

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 container hangs to filling.

Means for Solving Problem c] In order to achieve the purpose, the automatic powder filling device of the present invention uses magnetic force to lift hangers attached to both sides of a container bag containing powder and granular material. , a moving conveyance device for conveying the container bag to a predetermined discharge position; a heating means for automatically opening the closing material using the restoring force of a shape memory alloy provided at the discharge throat of the container bag; The present invention is characterized by comprising a discharge hopper that receives the powder and granular material discharged from the container bag after a predetermined process, and a storage device that has a function of matching the receiving throat of the storage bag with the chute of the discharge hopper. .

〔Example〕

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

FIG. 1 shows the overall configuration of the apparatus in this embodiment.

This device lifts the container bag a and transfers it to the raw material hopper 1. A moving conveyance device 4 is provided to move the raw material blending device including a weigher 2 and a mixer 3. A storage device 6 is arranged below the mixer 3 in order to charge the blended powder and granular material falling through the discharge hopper 5 into a storage bag b.

A conveyor 8 is installed between the storage device 6 and the warehouse 7 for conveying storage bags b containing powder and granules to the warehouse 7. Note that in place of the conveyor belt 8, other conveyance means such as a crane may be employed.

FIG. 2 (al) is a diagram illustrating in detail an example of the mobile conveyance device 4. The mobile conveyance device 4 is suspended by a wire rope 10 from a trolley 9 such as a crane. According to the travel of the container bag a, the mobile conveyance device 4 can move the container bag a in any direction, forward or backward or left or right.

The mobile transport device w4 has a U-shaped hanging tool 11 with both ends open at intervals corresponding to the width of the container bag a,
An electromagnet 12 is attached to the tip of the hanging tool 11. When the electromagnet 12 is lowered and is in an energized state, it attracts the magnetic body d at the tip of the handle C attached to both sides of the container bag a, and lifts the handle C. By raising the electromagnet 12, the space defined by the hanger C is expanded. By inserting the support hook 13 into the expanded space and winding up the wire row 110, the container bag a is raised to a required height. Further, when removing the hanger C from the mobile conveyance device 4, the electromagnet 12 is energized to lift the hanger C, and then the support hooks 13 are separated from each other.

Alternatively, by simply separating the support hook 13 and pulling it out from the loop of the hanger C, the hanger C can be removed from the mobile conveyance device 4.
can be removed. That is, the container bag a can be restrained or released by remote control such as turning on or off a switch.

In addition, instead of the support hook shown in Fig. 2 fal, the support hook shown in Fig. 3 (
1)) Alternatively, a mobile conveyance device equipped with a hook as shown in (cl) can also be used.

Next, with reference to FIG. 3, the operation for filling a container bag with powder or granular material will be explained.

The hanger C of the storage bag b placed at a predetermined position is lifted by a pair of electromagnets 12, and the bag body is fixed at a predetermined position of the discharge hopper 5. At this time, an appropriate number of drive mechanisms 15 are arranged around the outer periphery of the chute 14 at the bottom of the discharge pumper 5, and an electromagnet 16 is attached to the tip of the plunger that is expanded and contracted by the drive mechanism 15. ) If a magnetic adsorbent f is fixed to the mouth edge of e, the upper throat e is automatically fitted onto the outer periphery of the upper end of the discharge hopper 5. In addition, in Fig. 3, in order to automatically open the upper throat e, a mouth tightener g that utilizes the shape restoring force of a shape memory alloy is attached to the upper throat e.
is installed. When hot air is blown from the fan 17 onto this closure g, the shape changes, which is a characteristic of shape memory alloys, and the upper throat e, which had been bound by the closure g, is released, and the container bag opens. If this closing device g is heated while the upper throw (e) is being lifted up while being suspended from the electromagnet 16, it becomes possible to open the storage bag b immediately before filling the powder and granule material. A favorable internal atmosphere for the filled powder is ensured. In the example shown in Fig. 3, the shape of the mouthpiece g is changed by blowing hot air, but the mouthpiece g may also be heated by an appropriate heating means such as heat ray irradiation 1 and electrical heating. You may.

After putting the upper throat e over the chute 14 in this way,
The powder and granular material is put into the storage bag b from the discharge hopper 5.

At this time, a suitable weighing device (not shown) is attached to the valet 18 or the container 8 on which the storage bag b is placed, and a gate valve provided in the chute 14 is installed based on the weight of the filled powder and granular material indicated by the weighing device. (not shown), a certain amount of powder or granules will always be put into the storage bar knob b.

The storage bung b that has been filled with the specified amount is placed in the valley/to 1.
8 is transported to the warehouse 7 by the conveyor 8. Along with the removal of this storage hasog b, the hangar 19
Then, the next storage bag b is sequentially supplied to the powder filling position.

The mouth fastener g that utilizes the properties of the shape memory alloy used in the above examples refers to the mouth fastener itself made of a shape memory alloy, and the mouth fastener g that uses the shape memory alloy's shape restoring force as a trigger. There are those that start the movement of fasteners, etc. In addition, in the embodiment, a closure g that utilizes the properties of shape memory alloy is also attached to the upper throat e of the storage bag b, but instead of such closure g, a metal or plastic material may be used instead. It is also possible to open and close the storage bag b by making a closure from a hard material such as stainless steel and twisting the upper throat e. Alternatively, a foldable stopper member may be attached to the upper throw 1-e of the storage bag b.

〔Effect of the invention〕

As explained above, in the present invention, powder and granules are discharged from a container bag containing the powder and granules, and the discharged powder and granules are passed through appropriate equipment such as a weigher and a mixer to a storage location. It has become possible to automatically carry out the entire process of transporting the product to the warehouse, filling it into storage bags, and delivering it to the warehouse.

Therefore, there is no need to work around container bags, which workers tend to avoid, and the number of workers required for filling work can also be reduced.

[Brief explanation of drawings]

FIG. 1 shows the overall configuration of an apparatus according to an embodiment of the present invention, FIG. 2 shows a moving conveyance device in the device, and FIG. 3 similarly shows a storage device.

Claims (1)

[Claims] 1. A mobile conveyance device that uses magnetic force to lift hangers attached to both sides of a container bag containing powder and granular materials and conveys the container bag to a predetermined discharge position; a heating means that automatically opens the closing material using the restoring force of the shape memory alloy; a discharge hopper that receives the powder and granules discharged from the container bag after a predetermined process; and a chute of the discharge hopper. and a storage device having a function of matching a receiving throat of a storage bag with the storage bag.