JPH0630410Y2 - Dust recovery device in agitating mixer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Utilization of the Invention] The present invention relates to a device for collecting dust generated in a stirring mixer for stirring and mixing a virgin material of plastic pellets and a crusher.

[Background of the invention]

Generally, a pure resin raw material, that is, a virgin material is used to obtain a good quality resin molded product, and in the case of manufacturing a product that is not restricted in quality, the virgin material is a recycled crushed material such as burr. To reduce the product cost. Therefore, an appropriate amount of the virgin material and the recycled pulverized material are mixed. In the conventional method, mechanical stirring and mixing is performed using a stirring mixer, but this stirring generates a larger amount of dust than the regenerated pulverized material, and this dust is included in the molding of the resin, resulting in a melting point. Are different, which causes uneven color,
Or, bubbles are generated and a stable high-quality product cannot be obtained. Therefore, in order to remove the dust contained in the agitated and mixed raw material, the dust is conventionally removed by a separate sifter, but this has poor workability and has a problem in productivity. It was

[Purpose of device]

The present invention has been made in view of such conventional problems, and the dust generated in the agitating mixer is sucked and collected by a blower so that the raw material discharged from the agitating mixer contains the dust. It is an object of the present invention to provide a dust collecting device in a stirring mixer that can prevent such a situation.

[Example of device]

Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings.

Reference numeral 1 denotes a stirring mixer for stirring and mixing a virgin material of pellets and a pulverized material. An upper side of the stirring mixer 1 is an outside air suction port 2 filled with an air element, and a lower side thereof is a stirring unit. A material outlet 3 is provided. A stirring blade 4 is provided on the inner bottom of the stirring mixer 1, and is rotated by a motor (not shown). Further, an intake port 5 is provided on the side surface of the agitating mixer 1, and a net 6 made of punching metal or the like is attached to the intake port 5 to prevent the agitating raw material from being sucked out. 7
Is a back filter, and the back filter 7 and the intake port 5 are connected by an intake hose 8. Reference numeral 9 denotes a blower, which is connected to the back filter 7 by an intake hose 10.

The configuration of the present embodiment is as described above. Next, the operation thereof will be described. After the virgin material and the pulverized material are put in the stirring mixer 1 at an appropriate ratio, the stirring blade 4 is rotated to
The above materials are agitated and mixed in the agitator / mixer 1, and during the agitating and mixing, a large amount of dust is generated especially from the pulverized material. Then, by driving the blower 9 at the start of this stirring operation, the dust that is sucked from the intake port 5 of the stirring mixer and generated in the stirring mixer 1 is supplied into the back filter 7 through the net 6. In this back filter 7,
The dust is collected and only air is discharged from the blower 9. Therefore, the dust generated in the agitating mixer 1 is collected by the back filter 7, and the mixed material of the virgin material and the pulverized material which does not contain the dust can be sequentially obtained from the agitating material outlet 3.

As described above, by using the dust collecting device according to the present invention, the dust generated when the virgin material and the pulverized material are stirred is not collected by the back filter 7 and contained in the stirring mixed material. Therefore, it is possible to obtain an effect that a high-quality product can be stably molded without causing color unevenness or bubbles in the product.

[Outline of device]

As described above, the present invention provides the stirring mixer 1 having the intake port 5.
And a suction blower 9 is connected to the intake port 5 via a back filter 7, which is a dust collecting device in a stirring mixer.

[Effect of device]

Therefore, according to the dust collecting apparatus of the present invention, since the dust generated when the material in the stirring mixer 1 is stirred can be successively collected in the back filter 7, the mixed material obtained from the stirring mixer 1 can be collected. Has the effect that dust is not contained and a stable molded product of good quality can be obtained.

[Brief description of drawings]

FIG. 1 is an explanatory plan view showing an embodiment of a dust collecting apparatus according to the present invention, and FIG. 2 is a front view thereof. 1 ... Stirring mixer, 2 ... Outside air suction port, 3 ... Material outlet port, 4 ... Stirring blade, 5 ... Intake port, 6 ... Net, 7 ... Back filter, 8 ... Intake hose, 9 ... Blower 10 ... Intake hose

Claims (1)

[Scope of utility model registration request] 1. A pellet virgin material having an outside air suction port filled with an air element on the upper side, a stirring material outlet port on the lower side thereof, a stirring blade rotated by a motor on the inner bottom portion, and an intake port on the side surface. In a stirring mixer for stirring and mixing pulverized material, a punching metal is attached to the intake port, a back filter is connected to the intake port provided with the punching metal by an intake hose, and the back filter is connected to a blower by an intake hose. A dust collecting device in a stirring mixer.