JPH0356160A - Dusting and sprinkling apparatus of inner surface of bag body - Google Patents

Abstract

PURPOSE:To improve the recovery efficiency of a dusting powder by mounting an adaptor, an air spray type sprinkler and a dusting powder recovery device and mounting a sprinkling connection port and a recovering connection port to the adaptor. CONSTITUTION:When a dusting powder valve 27 and a recovering valve 36 are closed and an air valve 25 is opened, air flows in a bag body 1 through a spray gun 22 to expand the bag body 1. Subsequently, when the dusting powder valve 27 and the recovery valve 36 are opened, a dusting powder is injected in the bag body 1 through the spray gun 22 to be sprinkled. When the spray nozzle 22a of the spray gun 22 is revolved, sprinkling efficiency is improved. After sprinkling work is completed, when the dusting powder valve 27 is closed, the suspended dusting powder in the bag body 1 enters a primary filter 33 and falls to a dusting powder recovery container 37 to be recovered therein. By this method, the recovery efficiency of the dusting powder also becomes higher.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a device used for dusting and dusting the inner surface of a bag whose inner surface is rubber-coated. This invention is particularly suitable for use when dispersing powder on the inner surface of airbags, etc. Here, explanation will be given using an airbag as an example of a rubber-coated bag body, but the present invention is not limited to this. Conventional technology> Conventionally, powder was spread on the inner surface of an airbag by turning the airbag inside out, that is, with the inner side facing out, and using an air spray gun. The powder used for dusting is usually talcum powder (5 to 10 μm). (Problem to be solved by the invention) However, in the case of the above method, a large amount of powder is thrown into the air during the dusting operation. In order to protect the environment, it was necessary to operate from the outside in an enclosed ventilation room, which did not allow for good spraying efficiency, and furthermore, it was difficult to collect the powder (valuable dust). In view of the above, the present invention eliminates the need for troublesome dusting operations such as operating the powder from the outside in an enclosed ventilation room, and further improves the collection efficiency of dusting powder. The purpose is to provide a powder dusting device. Means for Solving the Problems> In order to solve the above problems, the present inventors have made extensive efforts in development and have come up with a powder dusting device for the inside of a bag body having the following configuration. A device used for dusting the inner surface of a bag whose inner surface is rubber-coated, and essentially consisting of an adapter attached to the opening of the bag, an air spray spreader, and a dust collector. The adapter includes a plate-shaped attachment member that can be airtightly attached to the opening of the bag body, and is provided with at least one connection port for powder dispersion and one connection port for powder collection, and The spray type duster is equipped with a powder dusting valve on the powder inflow side piping of the spray gun, and the discharge side of the spray gun can be connected to the powder dusting connection port, and the powder dusting collector is equipped with a powder dusting valve. It is characterized in that it is formed of a dust collector, and the air inflow side of the dust collector is connected to the powder collection connection port. Examples> Hereinafter, the present invention will be described in detail based on examples.

FIG. 1 is a schematic diagram of a bag internal powder dusting device of the present invention.

A. Essentially, it consists of an adapter 11 that attaches to the opening of a bag (airbag in the illustrated example) 1, and an air spray dispenser 2.
(1) Adapter 11 consists of a plate-shaped attachment member +2 that can be airtightly attached to the opening 3 of bag body 1, and a dust collection device 3l and a connection port 13 for dust distribution and a dust collection device 3L. This configuration is equipped with a connection port l4. Specifically, the mounting plate portion 12 includes a mounting seat plate 15 and a retaining seat plate 17 that abut on the outside and inside of the periphery of the opening 3 of the airbag 1, respectively. Bolts 17a are attached to the presser seat plate 17 in correspondence with the plurality of (usually 4 to 6) formed inflator mounting holes 5.
However, bolt holes 15g are formed in each mounting seat plate 15. The connection ports 13 and 14 are provided on the mounting seat plate 15, the former in the form of a bellows type joint, and the latter in the form of a nipple type joint. In the illustrated example, 23 is an air cleaning filter. In addition, each connection port 13, 14 is one each in the example shown, but it is also possible to have a plurality of each. (2) The air spray type sprayer 21 has a spray gun 22
The air injection side piping 24 and powder dusting inlet pipe 26 are respectively equipped with an air valve 25 and a powder dusting valve 27, and the discharge side of the spray gun 22 is connected to the sprinkling connection port l3.
It is said that it is possible to connect to. Here, air injection side piping 24
is the pressure air supply port (supplier) connected to the base of the pipe.
It is not necessary if the air can be directly adjusted with 29. Further, a presser ring 30 is normally used to connect the discharge side of the spray gun 22 and the powder application connection port 13.

(3) The powder collecting device 31 is formed by a dry dust collector in a dispersive manner, and the air inflow side of the dust collector is connected to the connection port 14 for collecting starch powder, that is, via the powder collecting pipe 32. are connected. In the illustrated example, primary and secondary filters 33 and 34
It is a filter dust collector equipped with a dust removal mechanism. The primary filter 33 is primarily responsible for collecting powder, and the secondary filter 34 is primarily responsible for air cleaning. The dust collector may be of other types, such as a centrifugal dust collector (cyclone type, forced rotation type) or an electric dust collector. In addition, since a damper is provided on the inflow side of the dust collector, although this is not normally necessary, in the illustrated example, a collection valve 36 is provided on the powder collection pipe 32.

B. Next, the manner of use of the bag inner surface dusting device will be explained.

(1) First, the airbag whose inner surface is rubber-coated (
The adapter 11 is attached to the opening (inflator attachment part) 3 of the bag body 1 via the plate-like attachment member 12. Here, the discharge side of the spray gun 22 is connected to a bellows-type powder dispersion connection port 13 . The air inflow side of the dust collector (primary filter) 33 is connected to the dust collection connection port 14 via the dust collection pipe 32. Further, the tip of the powder inlet pipe 26 is inserted into a powder storage tank 28 .

(2) Next, the air valve 25 is opened while the dusting valve 27 and the recovery valve 36 are closed. Then, air flows into the bag 1 through the spray gun 22, causing the bag 1 to expand. (3) M, dusting valve 27 and recovery valve 3
Let's open 6. Then, when the powder is ejected and scattered into the bag body 1 through the spray gun 22, if the spray nozzle 22a of the spray gun is rotated, the spraying efficiency will be improved. The spraying time is normally 2 to 3 minutes when the amount of powder to be sprayed is 2 to 3 g using an airbag with a capacity of 60J2. For air supply, a general-purpose 5 kg/cm' air supply port can be used.

(4) When the dusting work is finished, close the powder dusting valve 27. Then, the air pressure from the spray gun 22 will cause
The powder floating in the bag body 1 is transferred to the powder collection connection port 14.
, enters the primary filter 33 via the powder collection pipe 32 and is captured by the filter 33. The powder captured by the filter 33 is periodically brushed off and stored in the powder collection container 3.
7 and is recovered. When this work is completed, close the air valve 25 and
Remove the bag 1 from the adapter 11. Then, repeat the above operation for another bag.

<Operations and Effects of the Invention> The device for dusting and scattering powder on the inner surface of a bag according to the present invention is a device used for dusting and scattering powder on the inner surface of a bag whose inner surface is rubber-coated, and essentially consists of the following: It consists of an adapter that is attached to the opening, an air spray type duster, and a dusting powder collector, and the adapter is configured to spray at least one dusting powder onto a plate-shaped attachment member that can be airtightly attached to the opening of the bag body. The air spray type spreader is equipped with a dusting valve on the powder inflow side piping of the spray gun, and a dusting valve on the dusting powder inflow side piping of the spray gun, and a dusting powder collection connection port on the spray gun discharge side. It is possible to connect to the sprinkling connection port, and the starch powder recovery device is formed of a dust collector in a dispersive manner, and the air inflow side of the dust collector is connected to the dust collection connection port. By having these characteristics, the following actions and effects can be achieved.

Since both the scattering work and the collection work are performed in a closed system via an adapter airtightly attached to the opening, there is no chance of powder flying outside. Therefore, there is no need for troublesome dusting operations such as operating the powder from the outside in an enclosed ventilation room, and furthermore, the dust collection efficiency is good (approximately 100%).

[Brief explanation of drawings]

1J1 is a schematic view of the bag inner surface dusting device of the present invention, and FIG. 2 is a detailed sectional view of the adapter attachment portion in FIG. 1. DESCRIPTION OF SYMBOLS 1... Bag body (air bag), 3... Opening of the bag body, 11... Adapter, 12... Plate-shaped attachment member, 13... Connection port for powder dispersion, 14...・Connection port for starch powder collection, 21...Air spray type spreader, 22...Spray gun, 24...Air injection side piping, 26...Powder inflow side piping, 27...For powder Valve, 3l... powder collector, 33... primary filter.

Claims (1)

[Claims] A device used for dusting and scattering powder on the inner surface of a bag whose inner surface is rubber-coated, which essentially comprises an adapter attached to an opening of the bag;
The adapter is comprised of an air spray type duster and a powder collecting device, and the adapter has at least one connecting port for powder spreading and a powder collecting device attached to a plate-shaped mounting member that can be airtightly attached to the opening of the bag body. The air spray type spreader is equipped with a dusting valve on the powder inflow side piping of the spray gun, and the discharge side of the spray gun can be connected to the powder dusting connection port. The dust collector is formed of a dust collector in a dispersive manner, and the air inflow side of the dust collector is connected to the dust collection connection port. Powder spreading equipment.