JPS6221522Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The powder filling device of the invention feeds and fills the powder, which is finally solidified by press molding, into a container in a state containing oil before press molding. It is mainly used for filling powder for solid powder powder.

PRIOR TECHNOLOGY Many devices have been proposed that drop the powder contained in a hopper and supply it to containers in fixed amounts. For example, the containers are mounted on a rotary table and moved sequentially to measure the powder in the hopper. The powder in the measuring cylinder is filled into the container at a predetermined position by placing the powder in the cylinder and opening the bottom cover (see Japanese Patent Application Laid-Open No. 109089/1989).The supply cylinder at the bottom of the hopper is equipped with two shutters, upper and lower. A method of dropping and filling a container with a certain amount of powder by alternately opening and closing the container.
147201 (see Japanese Utility Model Publication No. 147201), and prevention of powder adhesion and clogging by vibrating the falling path between the hopper and the container (see Japanese Utility Model Application Publication No. 150979/1983). There is.

Problems that the invention aims to solve Among the powders that are filled into containers in fixed amounts by falling, for example, powder for solid powder powder has an oil content of 3.
Contains ~30% by weight. Powder that contains oil and is in a considerably moist state can be treated with a powder passage as disclosed in the above-mentioned Japanese Unexamined Patent Publication No. 50-109089 and Japanese Utility Model Application No. 56-147201. If you simply insert and remove the blocking plate across the passage, if it gets into the gap between the wall of the passageway and the plate, it will accumulate and form a lump. In addition, simply vibrating the falling passage as disclosed in Japanese Utility Model Application Publication No. 51-150979 does not prevent it from adhering to the metal or hard synthetic resin walls of the passage, and the same deposits occur in the form of nodules. becomes.

When the nodule-like powder reaches a certain size, it is pushed out into the passage through gaps, or when it is separated by its own weight or vibration, it falls into a container together with normal powder and is filled. When such powder is press-molded, the difference in density between the nodule-like powder and the normal powder causes uneven color or unevenness on the surface, which not only reduces the commercial value, but also reduces the product value due to the difference in hardness. This results in the problem that the entire surface cannot be evenly abraded during use.

Therefore, in view of these problems, the present invention provides a powder filling device that prevents powder from accumulating on the way from the hopper to the container, and which can produce press-molded products without color unevenness or unevenness. It was devised for the purpose of

Means for Solving the Problems The present invention provides a supply cylinder that is made of an elastic material and extends in the vertical direction between an upper annular body and a lower annular body that are provided on a connecting rod to which a vibration generator is fixed, and is extended at both upper and lower ends. a rotary table having a plurality of through holes into which a powder filling container is fitted and slidable up and down, and an upper surface of the rotary table having an opening communicating with the through holes; A cutter holding plate is disposed below the supply cylinder; a cutter having a transparent window communicating with the through hole is stacked on the upper surface of the rotary table and reciprocated between the cutter holding plate and the cutter holding plate. The upper end of the supply cylinder is connected to the outlet of the hopper via an elastic packing, and the lower end of the supply cylinder is connected to the upper surface of the cutter holding plate with an elastic support between them. The cutter holding plate is in contact with an elastic body that is brought into pressure contact with the upper surface of the cutter, and the supply tube is communicated with the through hole through the opening and the transparent window. This is a means to solve the above problems.

Operation The operation of the device of the present invention will be explained with reference to the embodiments shown in the drawings.

The rotary table 13, the cutter 24 on its upper surface, and the cutter holding plate 21 thereon are pressed against each other by the elastic force of the elastic body 27, and the drive device 30 causes the cutter 24 to reciprocate. First, a cutter 24 with an opening 20 and a through hole 12 arranged therebetween.
The supply cylinder 7, which is vibrated by the vibration generator 10, is filled with the powder that has fallen from the hopper 2 and is on standby. 12. Next, when the cutter 24 is moved to align the transparent window 23 with the opening 20 and the through hole 12, the powder in the supply tube 7 falls and is filled into the container 11. When a predetermined amount of powder is filled, the cutter 24
is moved to block the opening 20 and the through hole 12 again, the rotary table 13 is rotated to position the next through hole 12 below the supply cylinder 7, and the container 11 therein is filled with powder. Repeat.

Effects of the invention According to the invention, the supply cylinder from the discharge port of the hopper to the cutter for controlling the filling amount is fixed at both upper and lower ends to the connecting rod to which the vibration generator is fixed in the extended state. For example, by applying vibration in the vertical direction, the supply cylinder expands and contracts in the vertical direction and also vibrates in the diametrical direction at the same time, and since it is made of an elastic material, the vibration causes slight vibrations in the entire supply cylinder. This prevents powder from adhering to the
Furthermore, even if it adheres, it will not peel off immediately and will not accumulate. In addition, since elastic packing and elastic supports are interposed between both ends of the supply cylinder, the hopper outlet, and the cutter holding plate, these absorb vibrations and prevent vibrations from being transmitted to the hopper and cutter holding plate. This improves the powder adhesion prevention effect by efficiently vibrating the supply cylinder. Furthermore, since the cutter and the cutter restraining plate were stacked in order on the upper surface of the rotary table on which the container was fitted, an elastic body was applied.
An elastic support, a cutter holding plate, a cutter, and a rotary table are arranged one on top of the other without any gaps at the lower end of the supply cylinder, and in particular, by eliminating gaps between the top and bottom surfaces of the reciprocating cutters, powder does not enter. It is.

Therefore, according to the device of the present invention, since there is no part that lumps the powder, it is possible to fill a container with a constant amount of homogeneous powder, and therefore, when it is press-formed and solidified, there is no uneven color or unevenness. Not only is it possible to obtain a press-formed product without any blemishes, but because the product is molded to a uniform hardness, the entire surface can be removed evenly and without any discomfort when used. However, it does not cause the inconvenience of nodule-like powder being mixed in and giving the impression of a foreign body.

Embodiment An embodiment of the present invention will be described based on the drawings. An upper annular body 6 and a lower annular body 8 are installed at both upper and lower ends of a vertically extending connecting rod 9 to which a vibration generator 10 is fixed in the center.
A supply tube 7 made of an elastic material such as rubber is fixed at both upper and lower ends to the upper annular body 6 and the lower annular body 8 by appropriate means in an extended state. The upper edge of the upper annular body 6 is overlapped with the lower edge of the discharge port 3 formed at the lower part of the hopper 2 supported on the fixed support 1 with the elastic packing 4 in between, and these are connected to each other by bolts and nuts 5. It is connected.

A cutter holding plate 21 and a cutter 24 are installed below the supply tube 7 connected to the hopper 2 and extending vertically, which are arranged on the upper surface of a rotary table 13 which is rotated intermittently by a drive mechanism (not shown). . The rotary table 13 has a plurality of through holes 12 that sequentially communicate with the supply tube 7 as it rotates. A rail 15 for loading and unloading is provided below the rotary table 13. That is, when the through hole 12 moves below the supply cylinder 7, the support stand 14 rises and the container 11 is slid into the through hole 12, and when the powder filling is finished and the support stand 14 moves to the side. 14 descends and inserts the container 11 into the through hole 1.
A rail 15 is formed so as to be pulled out from 2. Thereby, the containers 11 filled with powder can be sequentially transferred to the molding device to perform press molding.

The cutter restraining plate 21 is formed of a disk having an opening 20 in the center, and is slidably fitted into the internal space 19 of the annular guide tube 18.
A mounting piece 16 provided at the tip of a plate-shaped support arm 17 protruding toward one side of the guide tube 18 is fixed to the fixed column 1. A lid piece 26 having an insertion hole 25 in the center is fixed to the upper surface of the guide tube 18.
An elastic body 27 made of a coil spring is inserted between the lid piece 26 and the cutter holding plate 21, and presses the cutter holding plate 21 against the upper surface of the cutter 24 and presses the lower surface of the cutter 24 against the upper surface of the rotary table 13. are doing. As a result, the cutter 24 is arranged without creating a gap between the rotary table 13 and the cutter holding plate 21.

The cutter 24 has a transparent window 23 that communicates the opening 20 and the through hole 12, is fitted into a diametrical guide groove 22 formed on the lower surface of the cutter holding plate 21, and is made of a fluid pressure cylinder. It is fixed to an operating rod 31 that is linearly reciprocated by a drive device 30. Then, when the transparent window 23 is aligned with the opening 20 and the through hole 12, the supply cylinder 7 is aligned with the through hole 12.
When the cutter 24 is moved to block the opening 20 and the through hole 12, the filling of the powder is stopped. When filling powder, the rotary table 13 is stopped, and when not filling, the rotary table 13 is rotated to fill the next through hole 12.
is positioned below the supply cylinder 7, and the filled container 11 is taken out from the through hole 12.

Further, the lower end of the supply tube 7 has a through hole 28 and is brought into contact with the upper surface of the cutter holding plate 21 with an elastic support 29 made of sponge interposed therebetween. For this reason,
There is no gap between the lower edge of the supply cylinder 7 and the upper surface of the cutter holding plate 21, and therefore the elastic packing 4, the elastic body 27, and the elastic support 29 work together to transfer the material from the hopper 2 to the through hole 12. Eliminate gaps where powder can enter the powder fall path.

When the vibration generator 10 is activated and vertical vibration is applied to the supply cylinder 7 at both upper and lower ends via the connecting rod 9 and the two annular bodies 6 and 8, the supply cylinder 7 mainly expands and contracts in the vertical direction and at the same time changes its diameter. It also vibrates in different directions. Furthermore, when the supply cylinder 7 is subjected to vibration in the diametrical direction at both the upper and lower ends, the supply cylinder mainly vibrates in the diametrical direction. The supply cylinder, which is made of an elastic material and installed in an extended state, generates slight vibrations throughout the supply cylinder due to the vibrations. Furthermore, this vibration is absorbed by the elastic packing 4 and the elastic support 29, and the hopper 2 and the cutter suppressing plate 21
It doesn't get across to me.

In addition, the discharge port 3, the supply cylinder 7, the through hole 28, the opening 2
0. It is preferable that the transparent window 23 and the transparent hole 12 be made to have the same diameter so that there are no irregularities to which powder may adhere.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional view showing an embodiment of the present invention;
Figures 3 and 4 are lines A-A and B-B in Figure 1.
FIG. 2 is a sectional view taken along line C-C. 2... hopper, 3... discharge port, 4... elastic packing, 6... upper annular body, 7... supply cylinder, 8...
... lower annular body, 9 ... connection rod, 10 ... vibration generator, 11 ... container, 12 ... through hole, 13 ... rotary table, 20 ... opening, 21 ... cutter holding plate, 23 ... Transparent window, 24... Katsuta, 27... Elastic body, 29... Elastic support body.

Claims (1)

[Claim for Utility Model Registration] A supply tube 7 made of an elastic material and extending vertically is attached to an upper annular body 6 and a lower annular body 8 provided on a connecting rod 9 to which a vibration generator 10 is fixed, and is vertically extended in an extended state. It has both ends fixed; it has a rotary table 13 having a plurality of through holes 12 into which a powder filling container 11 is fitted and slides up and down, and an opening 20 communicating with the through holes 12. A cutter holding plate 21 disposed on the upper surface of the rotary table 13 is disposed below the supply cylinder 7; a cutter 24 having a transparent window 23 communicating with the through hole 12 is disposed on the upper surface of the rotary table 13. The upper end of the supply tube 7 is connected to the discharge port 3 of the hopper 2 via an elastic packing 4, and The supply cylinder 7 is attached to the upper surface of the cutter holding plate 21.
The lower ends of the cutters 24 are brought into contact with each other with an elastic support 29 in between;
In addition, the supply cylinder 7 is communicated with the through hole 12 through the opening 20 and the transparent window 23;