JPS5830624Y2 - Powder spreading equipment - Google Patents

Description

[Detailed description of the invention] The present invention relates to a powder dispersion device that scatters powder by dropping it onto a member to be spread that moves relative to the powder. This invention relates to a powder dispersion mechanism in which a collision member is vibrated to crush and scatter powder, and the powder is uniformly dispersed over the area to be dispersed.

Conventionally, as this type of device, the one shown in the perspective view of FIG. 1 has been used.

That is, in the figure, 1 is a powder conveying trough, 2 is a powder to be sprinkled from the end of the powder conveying trough 1 onto a member 3 to be spread that moves relative to the powder conveying trough 1, and 4 is a line in which this powder 2 is spread in a linear manner. The spread powder layer 5 shows a spread state, and 5 is a spread table for moving the member 3 to be spread.

According to the conventional device having the above configuration, the powder 2 moves on the conveyance trough 1 to the end and falls, and the spreading table 5 is moved relative to the powder 2 by a drive mechanism (not shown). The powder is spread onto the surface of the member 3 to be spread, which is mounted on the surface, to form a spread powder layer 4.

Therefore, in the conventional device as described above, if the powder separates into a line on the conveyor trough or at its end, or if small powder lumps are formed, the powder is transferred as is to the member to be spread. Often causes uneven spraying and linear stripes.
There was a drawback that powder dispersion was not uniform.

In view of the above-mentioned drawbacks of the conventional ones, the present invention provides a powder disperser that moves relative to the falling flow of the powder to crush and scatter the powder at a position where the powder is falling. It is an object of the present invention to provide a powder scattering device that can uniformly spread powder onto the surface of a member to be spread.

Hereinafter, one embodiment of the present invention will be explained with reference to the perspective view of FIG. 2. In the figure, 1 to 3 are the same members as the conventional device of FIG. The scattered powder layer 6 is a powder disperser that is provided between the powder conveying trough 1 and the member 3 to be spread and moves relative to the falling flow of the powder 2 to crush and scatter the powder 2. .

Next, the structure of this powder disperser 6 is shown in a perspective view in FIG.

That is, in the figure, 7 is a coil spring-shaped collision member that is expanded and contracted and vibrably displaced, 11 is a support member that supports the collision member 7, and 12 is an exciter that vibrates and displaces the collision member 7.

Since the powder dispersion device according to the present invention is configured as described above, when the coiled elastic collision member 7 is expanded and contracted or vibrated in the front and rear, left and right, up and down directions, etc. using the vibrator 12, the conveyance can be carried out. The powder 2 that has fallen in the form of lumps or stripes from the end of the trough 1 collides with the collision member 7 and is pulverized or direction-changed and scattered, and is scattered onto the member 3-L to be dispersed.
The powder is evenly distributed like powder 4'.

Note that the vibration displacement of the collision member 7 is independently in each of the above directions,
Alternatively, it can be displaced in combination, and furthermore, it can be displaced in synchronization with the movement of the spreading table 5 or independently.

As described above, according to the present invention, a powder disperser made of a collision member that moves relative to the falling flow of powder to crush and scatter the powder is provided between the powder conveying trough and the member to be dispersed. As a result, it is possible to uniformly spread the powder to the member to be spread, so that the variation in the moving powder of the powder conveying trough L is not directly transferred to the member to be spread, and the powder is not transferred to the powder disperser. This has the effect of providing highly accurate powder dispersion without the risk of adhesion or stacking.

In particular, in the present invention, the powder disperser is formed by a coil spring-like collision member provided between the powder transport trough and the scattering member, and a vibrator that expands, contracts or vibrates the collision member. Because of this structure, this coiled spring-like collision member prevents the dispersed powder from being dispersed over a wide range, as is the case with conventional sieves or grooved rollers. The powder is dispersed in a narrow belt-like distribution along the scattering flow, and has the effect of making it possible to obtain a spread powder layer with an even and uniform thickness on the member to be spread that moves relative to this spray flow.

[Brief explanation of the drawing]

Fig. 1 is a schematic perspective view showing a conventional powder dispersing device, Fig. 2 is a schematic perspective view showing main parts of a powder dispersing device according to an embodiment of the present invention, and Fig. 3 is a schematic perspective view showing a powder dispersing device according to an embodiment of the present invention. FIG. 3 is an enlarged perspective view of a distributor. 1: Rough to powder conveyance 1, 2: Powder, 3: Spreading member, 4
゜4': Spreading powder layer, 5: Spreading table, 6: Powder disperser,
7: Collision member, 11: Support member, 12: Vibrator. In the drawings, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] Powder dispersion consisting of a powder transport trough that transfers and spreads powder, and a member to be spread that moves the powder flow spread from this powder transport trough relative to the powder transport I/rough and transfers and adheres to it. The apparatus includes a powder disperser comprising a coil spring-like collision member provided between the powder transport trough and the scattering member, and an exciter that expands, contracts or vibrates the collision member. A powder spreading device featuring: