JP2506441Y2 - Suction transport device for powder and granular material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an improvement of a suction / transport device for a powder / granular material used for transporting a powder / granular material such as a resin pellet by suction.

[Prior Art] In recent years, many types of resin molded products have been produced in small quantities, and for this reason, in material supply hoppers, metering and mixing devices, various tanks, etc., materials are frequently replaced. However, at the time of such replacement of the resin material, it is necessary to temporarily collect the resin material remaining in the hopper or the tank in a bag or the like.

By the way, in the past, taking the case of a hopper dryer as an example, by opening the material outlet after applying the material recovery bag to the material outlet provided on the bottom side surface of the hopper dryer, Although the residual material is extracted by natural fall, such a method takes time to discharge the residual material, and it is troublesome to apply the material recovery bag to the material outlet and receive the material without leakage.

Therefore, recently, a material suction transporter in which a blower for sucking material and a filter device for removing dust are mounted on one carrier is used, and a collector is connected to this material suction transporter. As shown in FIG. 5, the collector D installed on the upper part of the hopper dryer A during the suction transportation of the material is placed on the installation base E installed near the hopper dryer A, and the collector D is installed. A transportation hose F is arranged from D to the inside of the hopper dryer A, and the transportation hose F is
The nozzle G provided at the tip of the hopper is inserted into the residual material M stored in the hopper dryer A, and the collector D
To the filter device J of the transport machine I equipped with the suction blower H, the suction blower H is driven to suck the residual material M in the hopper dryer A to the collector D, and the residual material M and air are separated, and the residual material M is dropped and collected in the material collecting bag C arranged below the collector D. At the time of collecting the material, the installation stand E and the material collecting bag are used. It is troublesome to prepare C and replace the collector D on the installation base E from the upper part of the hopper dryer A, and the material dried by the hopper dryer A absorbs moisture, which is also unsafe. There was such a problem.

[Problems to be Solved by the Invention] The present invention has been made in order to solve the above problems and was developed as a result of earnest studies by the present inventors.

Therefore, the main object of the present invention is to add a function to collect the granular material remaining in the hopper or tank easily and safely in a short time, in addition to the suction transportation of the granular material. An object of the present invention is to provide a suction and transport device for powdered granular material.

Another object of the present invention is to provide a suction and transportation device for powdery or granular material which can be made to function as a vacuum cleaner by a simple operation of replacing a hose.

[Means for Solving the Problems] The present invention has been proposed to achieve the above object. The first invention proposed for achieving the first object is to open a discharge port to the atmosphere. In a suction and transportation apparatus for powdered and granular material, comprising: a blower, and a filter apparatus, one end of which is connected to a suction port of the blower, and the other end of which is connected to a suction hose for material transportation. This filter device is characterized in that it is connected to a suction hose for material transportation, and a dust box with a vent hole that can be opened and closed at the top is detachably attached below it, and a material recovery unit. The hose is connected and a flat plate filter with a hole in the center is installed.
Further, below that, there is a basic structure in which an accessory housing provided with a retainer for attaching a material recovery bag is integrally connected vertically, and the dust box has an upper part with a ventilation hole and Also, the lower lower part is divided into upper and lower parts by the flat plate filter, and the lower part is projected downward from the hole of the flat plate filter so that the lower part is housed in the accessory housing. Characteristic.

Here, the ventilation hole of the dust box is closed at the time of sucking and transporting the material and at the time of cleaning, and opened at the time of collecting the material (corresponding to claim 1).

A second invention proposed to achieve the same purpose is to connect a blower having a discharge port opened to the atmosphere and one end to the blower, and attach and detach a suction hose for material transportation to the other end. In addition to the basic configuration including a filter device connected to the above, a dust box is removably attached to the above filter device, and the dust box is manually attached to a material recovery tank to which a material recovery hose is connected. The structure is such that they are connected via a communication pipe having a damper that can be opened and closed (corresponding to claim 2).

Further, in the apparatus according to the fifth aspect, instead of the damper, a control valve that is automatically opened and closed is used for the communication pipe.

In order to efficiently remove the dust mixed in the air used for transporting and recovering the material, the apparatus according to claim 3 is composed of a non-biased cyclone type filter apparatus utilizing centrifugal separation force. ing.

Further, in the suction transporting apparatus for powdery or granular material proposed for achieving the second object, a cleaning hose having a cleaning nozzle attached to the tip is added, and at the time of transporting the material, this cleaning hose is used for suctioning the material. It is configured to be connected instead of the hose, and the one to which such a configuration is added includes the configuration of the first invention and the configuration of the second invention as they are. (Corresponding to claim 4).

[Operation] According to the first aspect of the present invention, the air suction pipe of the filter device is opened, the suction hose for material transportation is connected, the suction pipe for material recovery is closed, and the ventilation hole of the dust box is closed.
When the blower is driven, the material is collected in the collector by the suction action of the blower, and if the damper of the collector is opened, the material stored in the collector can be discharged for suction transportation. .

Also, attach a material recovery bag under the attached housing,
By connecting the material recovery hose to the accessory housing, closing the air suction tube and opening the ventilation hole of the dust box, and driving the blower, the material sucked through the material recovery hose along with the air flow will be the flat plate filter in the accessory housing. Are separated by and collected in the material recovery bag.

According to the second invention, since the dust box is not provided with the vent hole, there is no need to open and close the vent hole of the dust box, and instead the damper is manually opened and closed.
Further, since the filter device is provided with the material recovery tank, it is not necessary to attach the material recovery bag below the accessory housing, and the residual material can be recovered by opening the damper and driving the blower.

According to the present invention as set forth in claim 3, the filter device performs the uniform filtering action using the centrifugal action.

According to the present invention described in claim 4, in addition to the operation of the first or second invention, a suction hose for material transportation is replaced,
It can also be used as a vacuum cleaner by simply replacing the cleaning hose with a cleaning nozzle at the tip.

According to the present invention as set forth in claim 5, the communication pipe connecting the filter device and the accessory housing is provided with the control valve which is automatically opened and closed, which is more convenient than the operation of the damper. .

[Embodiment] FIG. 1 is an exploded perspective view of a main structure of the present invention, and FIG. 2 is a vertical sectional structural view of the portion.

The filter device 3 is connected to a suction hose H1 for material transportation, and below the main body housing 30 to which a dust box 4 having a vent hole 41 which can be opened and closed is detachably attached, and a hose H2 for material recovery. The flat plate filter 5 that is connected and has a hole 52a formed in the center is installed.
Below that, there is a basic structure in which an accessory housing 5 provided with a retainer 6 for attaching the material recovery bag 7 is integrally connected vertically.

Here, the main body housing 30 has a cartridge filter 3c built in the center thereof and forms a cylindrical body having an open bottom. The flange portion 3a is projected from a part of the outer peripheral wall of the housing 30, and the lower end thereof is further formed. A brim 3b is formed on the.

An air intake pipe 31 for connecting a flexible material-suction suction hose H1 is projectingly provided on a part of the outer peripheral wall of the main body housing 30.

Further, the accessory housing 5 is internally provided with a flat plate-shaped filter 52 having an opening at the bottom and a hole 52a formed in the center, and a retainer 6 for covering the material recovery bag 7 is attached below. The flange portion 3a formed on the outer peripheral wall of the housing 30 is placed on the upper opening edge 5a of the attached housing 5, and then the bolt 14 is tightened to be integrally connected.

The one dust box 4 is made of a synthetic resin that is transparent and breathable so that the inside can be seen through.
The opening edge 4a is matched with the brim edge 3b provided at the lower end of the housing 30, and the catch clip 43 is hooked so that the dust box 4 can be easily attached and detached.
The ventilation hole 41 formed in the
Is provided, and can be opened and closed by removing a synthetic resin seal lid 42 from the vent hole 41.

As shown in FIG. 2, the lower portion of the dust box 4, that is, the lower portion of the dust box 4 is formed with a hole 52a formed in the center of the flat plate filter 52.
So that the dust box 4 is divided into an upper portion provided with the ventilation hole 41 and a lower portion not provided with the ventilation hole 41 by the flat plate filter 52. It has become. Incidentally, 51b is a seal portion for maintaining airtightness when the dust box 4 is fitted in the hole 52a.

A suction pipe 51 for material recovery that is opened and closed by attaching and removing a cap seal (not shown) is formed on the outer peripheral wall portion of the attached housing 5 below the flat plate filter 52. As shown in FIG. 2, a flexible material recovery hose H2 is connected to the.

Further, as shown in FIGS. 1 and 2, a retainer 6 of a size capable of covering the material recovery bag 7 with the stopper is provided below the attached housing 5, and the retainer 6 is A plurality of wire rods 61, 62 are formed in a basket shape in which they are combined as a frame, and four ribs 63 extending vertically longer than a part of the wire rods have a bent locking portion 63a at the tip thereof. This locking portion 63a is the above-mentioned accessory housing 5
It is adapted to be fitted in a stop hole 5b formed in the lower wall of the above.

Such a retainer 6 is used to prevent the material from being unacceptable due to the negative pressure inside the material recovery bag 7 when the material is recovered and the mold being crushed. Absent.

The material collection bag 7 can be a normal 25 kg bag containing a resin material and has an upper opening as shown in FIG.
7a is opened and the retainer 6 is covered with the stopper so as to wrap it, and then the retainer 6 is tightened by a tightening band (not shown).
Since it can be tightened and attached to the outside of the, the attached material recovery bag 7 is exposed from the outside.

Inside the housing 30 of the filter device 3, the intake bend
A cartridge filter 3c communicating with 22 is attached, and an air suction pipe 31 for connecting a material transport suction hose H1 is projectingly provided on an outer peripheral wall of a main body housing 30 thereof.

In the illustrated example, the air suction pipe 31 is provided so as to project tangentially to the outer peripheral wall of the cylindrical housing 30 of the filter device 3, whereby a centrifugal force is exerted on the air sucked in for sucking the material. Cartridge filter 3c
The dust is efficiently collected.

In the present embodiment, the filter device 3 is a cyclone type filter having such a centrifugal separation function, but the filter device 3 is not limited to this type and is included in the air used for material transportation. Any material may be used as long as it has a function of filtering dust.

Further, the air suction pipe 31 of the filter device 3 is detachably connected to a cleaning hose H3 having a cleaning nozzle 11 attached to the tip as shown in FIG. 3 in place of the material transport suction hose H1. When the transportation device of the present invention is used as a vacuum cleaner, a cleaning hose H3 is connected to the air suction pipe 31 as described later.

Next, with reference to FIG. 3, a usage procedure of the present invention will be described.

When transporting the resin material M contained in the material drum 11 to the hopper dryer HD, the collector 3A is used.

Here, the collector 3A has a structure in which a material suction port 30a is provided in an upper part, an air suction port 30b is provided in a lower part, and an opening / closing damper 34 is provided in a lower part of a hopper body 30c in which a mesh filter (not shown) is housed. It is used as a body and is placed on top of the hopper dryer HD as shown in the figure.

When transporting materials using such a hopper dryer HD, place a collector on the hopper dryer HD.
3A is mounted, the material suction port 30a of this collector 3A is connected to the other end of a material transport hose H4 with a suction nozzle 12 attached to the tip, and the air suction port 30b of the collector 3A is connected to the material. Connect one end of the transport suction hose H1 to transport the material
The other end of H1 is connected to the air suction pipe 31 of the filter device 3. In this case, the air suction pipe 31 has the cap seal removed in order to open it.

Then, at this time, the ventilation hole 41 of the dust box 4 is covered with the lid seal 42 to close the ventilation hole 41.

On the other hand, the material recovery bag 7 may be left attached to the lower part of the accessory housing 5 or may be removed.
In this case, the attached housing 5 is the main body housing 30.
It may be removed more.

After completion of such setting, when the suction nozzle 12 is thrust into the drum 11 accommodating the material and the blower 2 is driven, the air sucked from the suction port 2a of the blower 2 is discharged inside the collector 3A. Is set to a negative pressure, the material M contained in the drum 11 is vigorously sucked into the collector 3A, and the material and air are separated by the mesh filter provided therein. As a result, only the material remains in the collector 3A, and the air is sucked through the air suction port 30b of the collector 3A through the suction hose H for transporting the material.
Through 1, the dust enters the filter device 3, where dust mixed in the air is removed.

As a result, the cartridge filter in the filter device 3
The dust D filtered by 3c falls and is stored in the dust box 4, while the air from which the dust has been removed is discharged from the suction port 2a of the blower 2 to the atmosphere.

A dehumidifying unit 13 is connected to the exhaust port 32 of the hopper dryer HD,
The exhaust gas discharged from the HD is dehumidified and then sent to the heater unit 33.

Next, when recovering the material M remaining in the hopper dryer HD, the material transport suction hose H1 is removed from the air suction tube 31, the lid seal 42 is removed, and the ventilation hole 41 of the dust box 4 is opened. One end of the material recovery hose H2 is connected to the material recovery suction pipe 51 of the attached housing 5, and the other end is connected to the material discharge port 31 of the hopper dryer HD.

Further, the material recovery bag 7 is attached below the accessory housing by using a tightening band so as to wrap around the retainer 6 provided below the accessory housing 5.

When the blower 2 is driven after the above settings are completed, the residual material M stored in the hopper dryer HD becomes
Along with the flow of air generated by the drive of the blower 2, it is sucked into the inside of the accessory housing 5 one after another through the material recovery hose H2, filtered by the flat plate filter 52 and dropped into the material recovery bag 7, and one of the air flows. Passes through the flat plate filter 52, then enters the cartridge filter 3c through the ventilation hole 41 of the dust box 4, is filtered here, and is then opened to the atmosphere from the suction port 2a of the blower 2, and as a result, is stored in the hopper dryer HD. The removed material M will be recovered in the material recovery bag 7 without remaining.

In this way, after the residual material M is stored in the material recovery bag 7, the tightening band is removed, the opening 7a of the bag 7 is sealed by an appropriate method, and another material recovery bag is attached to the same method. To collect.

On the other hand, when cleaning dust or dust scattered in the hopper dryer HD or around the suction transportation device, or when cleaning dust or dust dropped on the floor, remove the material transportation hose H1 from the air intake pipe 31 of the filter device 3 and attach it to the tip. If the blower 2 is driven after replacing the cleaning hose H3 to which the cleaning nozzle 11 is attached, dust and dust can be cleaned by the suction action, and the cleaned dust and dust are stored in the dust box (in this case, the dust box). Vents should be closed as for material transport).

FIG. 4 shows a longitudinal cross-sectional structure of a main part of an embodiment of a suction / transport device for powder / granular material according to the second invention.

This suction / transport device 1'has a blower and a control panel similar to those of the first invention mounted on a carrier provided with casters (not shown), and below the filter device 3 having a cartridge filter 3a built in the center thereof, The dust box 4 is detachably attached by a similar method with a catch clip or the like, but the dust box 4 has no ventilation hole and has the conventional structure as it is.

In addition, the air suction pipe 31 protruding from the housing 30 of the filter device 3 is similarly provided with a material transport suction hose H1.
Is connected to the filter device 3, and a material recovery tank 8 accommodating the material recovery bag 7 and a communication pipe provided with a damper 9 having a lock mechanism that can be manually opened and closed.
It has a structure that communicates via 10.

This material recovery tank 8 has a tank main body accommodating the recovery bag 7 suspended and attached by a catch clip or the like below the closed lid 81. By removing the lid 81, the material recovery bag 7 accommodated Can be taken out.

An opening 81a is provided in the center of the closed lid 81 of the material recovery tank 8, and the bend pipe 14 provided at the tip of the material recovery hose H4 is inserted into this opening 81a so that the sucked material can be dropped and stored in the tank 8. It has become.

With such a structure, compared to the first device in which the ventilation hole of the dust box is opened and closed every time material is collected and transported, it is only necessary to manually open and close the damper, and moreover, inside the material recovery tank. If the material recovery bag is stored in advance, the troublesomeness of mounting the recovery bag by the tightening band can be eliminated.

The operations for sucking and transporting the material and collecting the material are the same as those of the first invention, so the description thereof is omitted. However, the suction hose H1 for transporting the material connected to the air suction pipe 31 of the filter device 3 is removed, and the cleaning hose is replaced. If connected, it can be used as a vacuum cleaner as in the first invention.

[Effect of Device] As can be understood from the above description, the present invention has the following effects.

According to the first aspect of the present invention, suction transportation of material and suction collection of material are selected by a simple operation of opening and closing the ventilation hole of the dust box and connecting and connecting the hose to the connecting pipe of the filter device and the accessory housing. Can be implemented,
Moreover, if the hose attached with the cleaning nozzle is replaced and connected to the connection pipe used for suction and transport of the material, it can be used as a cleaning vacuum cleaner.

Further, according to the second invention, since the material recovery tank is provided in advance and the material recovery bag can be accommodated and used in this tank, it is not necessary to attach the material recovery bag to the lower part of the accessory housing one by one when recovering the material, Moreover, it is not necessary to remove the dust box from the filter device to open and close the ventilation hole, and it is only necessary to open and close the damper of the communication pipe. Therefore, the operability is further improved in addition to the effect of the first invention. .

Further, if the filter device is constituted by a cyclone type filter device utilizing centrifugal separation force, the dust collecting action can be effectively performed without any bias.

In addition, if a cleaning hose with a cleaning nozzle at the tip is prepared in advance and this cleaning hose can be attached instead of the material transport suction hose, it can be used as a vacuum cleaner in addition to the above effects. You can also do it, which is very convenient.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment showing the structure of the main part of the first invention, FIG. 2 is a longitudinal sectional structure view of the main part, and FIG. 3 is an explanatory view of the usage procedure of the first device. FIG. 4 is a vertical cross-sectional structural view showing a main part structure in the second invention, and FIG. 5 is an explanatory view showing a procedure for recovering a material using a conventional suction transport machine. (Explanation of symbols) 1,1 ′ …… Suction and transport device for powder and granular material of the present invention 2 …… Blower 2a …… Suction port 3 …… Filter device 31 …… Air suction pipe 4 …… Dust box 41… … Ventilation hole 42 …… Opening / closing lid 5 …… Attached housing 51 …… Suction tube for material recovery 52 …… Flat filter 52a …… Center hole 6 …… Retainer 7 …… Material recovery bag 8 …… Material Recovery tank H1 …… Suction hose for material transportation H2 …… Material recovery hose H3 …… Cleaning hose 14 …… Cleaning nozzle provided at the tip

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Bibliography Sho 58-27223 (JP, U) Steady Sho 53-82089 (JP, U) Steady Sho 63-115422 (JP, U) Steady Sho 61- 111556 (JP, U)

Claims (5)

(57) [Scope of utility model registration request] 1. A powdery or granular material comprising a blower having a discharge port open to the atmosphere, and a filter device having one end connected to a suction port of the blower and the other end connected to a suction hose for material transportation. In the suction transport device of the above, the filter device is connected to the suction hose for transporting the material, and a dust box with a vent hole that can be opened and closed at the upper part is detachably attached below the suction hose, and a material recovery unit. The hose is connected and a flat plate filter with a hole formed in the center is installed inside, and below that, an accessory housing provided with a retainer for attaching a material recovery bag is integrally connected vertically With the structure, the dust box has an upper part having a vent hole and a lower part lower than the upper part so that the upper part and the lower part are separated by the flat plate filter. An apparatus for sucking and transporting powdery or granular material, characterized in that the lower part thereof is projected downward from the hole of the flat plate filter and housed in the accessory housing. 2. A suction and transportation of a granular material, comprising a blower having a discharge port opened to the atmosphere, and a filter device having one end connected to the blower and a suction hose for material transportation connected to the other end. In the device, in the filter device, a dust box is removably attached below the dust box, and the dust box has a communication pipe having a damper that can be manually opened and closed in a material recovery tank to which a material recovery hose is connected. A suction / transport device for the granular material, which is structured to be connected through. 3. The suction / transport device for powder / granular material according to claim 1, wherein the filter device is a cyclone type filter device utilizing centrifugal force. 4. The suction / transportation device for powdery or granular material further comprises a cleaning hose having a cleaning nozzle at its tip, and the cleaning hose is replaced with the suction hose for transportation of material to be used as a filter device. The powdery or granular material suction / transport device according to claim 1 or 2, which is configured to be detachably connectable. 5. The suction / transport device for powder / granular material according to claim 2, further comprising a control valve which opens and closes automatically in place of the manual damper.