JPS59218299A - Washing device for rotary plate of rotary type powder molding machine - Google Patents

Abstract

PURPOSE:To clean easily and surely the parts of a rotary disc which contact with powder without contaminating the surrounding by closing hermetically the rotary plate with washing covers and injecting washing liquid through said covers and feed ports to pestle guiding holes, mortar attaching hole, etc. CONSTITUTION:Washing covers 13, 35 are put on a rotary plate 2 to form a hermetic space 20. While the plate 2 is rotated at a low speed, the washing liquid in a tank 24 is injected via a pump 25 and a valve 30 from washing means 18 through feed ports 14-16 by the command from a control device 29 for washing cycle thereby cleaning the parts of the plate 2 such as pestle guide holes 5, 6, mortar attaching hole 7, etc. that contact with powder. Discharge is performed at the same time of means of a sucking device 28 and a valve 33. The supply of the washing liquid is stopped upon washing for a prescribed time and the discharge is made thoroughly then air for drying is fed in place of the washing liquid through the ports 14-16 to dry the washed parts.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for cleaning a rotary disk of a rotary powder molding machine such as a rotary tablet press.

Since various compression molded products are manufactured using rotary tablet presses, etc.
When switching compression molded products, it is necessary to clean the powder contact parts of the molding machine such as a rotary tablet press so that the powder used for low-quality manufacturing does not mix. must be cleaned regularly.

In view of this cleaning, the powder contact parts of the molding machine, such as the hot spring, powder feeder, scraper/mother, and punch set, are provided in a removable manner so that they can be cleaned.

Incidentally, the rotary disk also serves as a part that comes into contact with the powder, but it is extremely difficult to remove it, and it cannot be easily carried by hand due to its large weight.

For this reason, conventionally, in order to clean a rotary disk, after removing the removable parts mentioned above that will be in contact with the powder, clean the powder contact parts such as the pestle guide hole and the mounting hole of the rotary disk with alcohol and water. Cleaning was done by hand using various solvents.

Therefore, in the past, it was not possible to clean the rotary disk, and the cleaning work was extremely troublesome and took a long time, and in particular, it was not possible to sufficiently clean the stepped corners of the mortar mounting hole. The present invention was developed under the above circumstances, and its purpose is to make it possible to easily and reliably clean the part of the rotary disk that comes in contact with powder without contaminating the surrounding area. An object of the present invention is to provide a rotary disk cleaning device for a rotary powder molding machine.

That is, in the device according to the present invention, a sealing material is attached to the edge of the opening, and a sealed space is formed between the rotary disc and the outer surface of the rotary disc in which a plurality of working inner holes and a plurality of mounting holes are respectively located. , a cleaning cover that covers a part of the rotary disk and is detachable, a supply port provided on this cover for introducing cleaning liquid and drying air, a drain port provided at the bottom of the cleaning cover, and a cleaning cover inside the cleaning cover. The present invention is characterized in that the cover is provided with a cleaning tool disposed at a position facing the working inner hole and the date mounting hole or in the vicinity of the facing position while the cover covers the rotary disk.

According to the apparatus according to the present invention having this feature, the cleaning liquid is introduced into the closed space formed between the cleaning cover and the rotary disk and where the powder contacting part of the rotary disk is located, and the cleaning tool is used to remove the powder. Contact parts can be cleaned. That is, it is possible to perform cleaning by washing, which was previously impossible, and therefore, reliable cleaning can be achieved. At the same time, since multiple work bores and mounting holes can be washed and cleaned at the same time, there is no need to manually wipe and clean these work bores, and powder contact parts of the rotary disk can be easily cleaned. Can be cleaned.

Furthermore, since cleaning is carried out in a closed space, the cleaning liquid is not scattered around, and after cleaning, the cleaning liquid is discharged from the closed space and drying air is introduced into the closed space to remove the rotary disk. Since it can be dried, cleaning liquid will not drip onto the rotary disk even if the cleaning cover is removed after cleaning. Therefore, it does not pollute the surrounding area.

An embodiment of the present invention will be described below with reference to FIG.

In the figure, 1 is the frame of the rotary powder compacting machine, 2 is the rotary disk, and 3
4 is an upper punch track; 4 is a pressure roll; 5 and 6 are a plurality of working bores provided oppositely to the rotary plate 2; and 7 is a hole between the upper and lower working bores 5. A stepped-shaped date mounting hole is provided at , 8 is a mortar fixing bottle mounting hole, and 9 is a gear portion. The rotary disk 2 is rotated many times by a drive system including a drive gear (not shown) meshed with a gear portion 9. It should be noted that at least a portion of the outer surface of the rotary disk 2 located in a closed space, which will be described later, is subjected to anti-rust measures such as plating, tuff film processing, or adhesion of a stainless steel plate.

10 in the figure is a cleaning device according to the present invention, and a cleaning unit 11
and an equipment unit 12. Here, since the cleaning units 11 are formed in various sizes corresponding to the size of the rotary disk 2, when cleaning units of different sizes are installed together as equipment, the cleaning units 11 have different sizes. The equipment unit 12 is commonly used. The cleaning unit 11 has a cleaning cover 13, a supply port 14,
15 and 16, a drain port 17, and a cleaning tool 18.

The pick and cleaning cover 13 is detachably provided to cover a part of the rotary disk 2, and an O-ring-like sealing material 19 is attached to the edge of the opening. When this cover 13 covers a part of the rotary disk 2, a plurality of working inner holes 5, 6 and a plurality of date mounting holes 7 of the rotary disk 2 are located between this inner surface and the outer surface of the rotary disk 2. A closed space 2θ is formed. Supply ports 14, 15, and 16 are provided in the cleaning cover 13 to introduce cleaning liquid and drying air into the closed space 2o, and this embodiment shows a case in which they are formed as pipes. In this embodiment, the supply port 14
The distal end side of the supply port 15 is provided so as to face above or below the working inner holes 5 and 6, and the distal end of the supply port 16 is provided at a height position opposite to the mortar fixing bin attachment hole 8. The drain port 17 is provided at the bottom of the cleaning cover 13, and a drain pipe 21 is connected to it. Further, the cleaning tool 18 is of a non-contact type that performs a cleaning action on the powder contacting part without itself coming into contact with the powder contacting part, and is provided inside the cleaning cover 13. Note that in this embodiment, the supply port 1
4, 15, and 16 are each equipped with at least one cleaning tool, such as a nozzle. These cleaning tools 18 have a working inner hole 6.6, a false mounting hole 7, a mortar fixing pin mounting hole 8, a gear part 9,
and the other powder contact parts, respectively. In addition, 22 in the figure is the cleaning cover 13.
This is a mounting leg that can be inserted into and removed from a fixing hole (not shown) provided in advance on frame 1. It is fixed to the frame 1 by the seat 23.

The equipment unit 12 also includes a cleaning liquid tank 24, a ponder 25, a compressor 26, a hot air generator 27, a suction device 28, a cleaning cycle control device 29, and valves 30 to 33. has been done. The control device 29 controls the start and end times of the other devices 25 to 28, as well as the opening/closing and opening degree of the valves 30 to 33. It is now possible to determine the cleaning cycle. The downstream sides of the valves 30 to 33 are detachably connected to the supply ports 14 to 16, respectively, and the upstream side of the valve 33 is detachably connected to the discharge pipe 21. The equipment unit 12 is movable with casters 34 attached to the bottom.

In the figure, reference numeral 35 denotes another cleaning cover that may be provided if necessary, and this is arranged continuously to the cleaning cover 13 and covers the entire circumference of the rotary disk 2 together with this cover 13. Although not shown, a sealing material is attached to the opening edge of the cleaning cover 35. This cover 35 may form a part of another cleaning unit or may be a mere cover, but in the case shown, it forms a part of another cleaning unit, and includes equipment. The unit is now connected.

Next, cleaning of the rotary disk 2 will be explained. First, after removing the removable powder contact parts, cover the rotary plate 2 with cleaning covers is and ss, respectively.
Continuing. As a result, a closed space 20 is formed in which the entire circumference of the rotary disk 2 is covered and a powder contact portion is located between the inner surface thereof and the outer surface of the rotary disk 2.

After the space 20 is formed, the equipment unit 12 is operated while rotating the rotary disk 2 to clean the powder contact portion of the rotary disk 2. In this case, the rotary disk 2 is rotated, for example, continuously at a low speed by the drive system of the molding machine, and the cleaning liquid is supplied via a pump fzs and a valve 30 operated by a command from the cleaning cycle control device 29. The cleaning liquid is ejected from the cleaning tool 18 through the supply ports 14 to 15, for example. At the same time, the suction device 8 and the valve 33 are operated as necessary by the device 29 to drain water.

Therefore, each time the powder contact part is located within the spray range from the cleaning tool 18, the cleaning liquid is sprayed onto the powder contact part, and the powder contact part is cleaned by this spraying. Of course, the used cleaning liquid collected at the bottom of the cleaning cover 130 is drained out of the cover 13 one after another.

After such cleaning has continued for a predetermined period of time, the supply of the cleaning liquid to the closed space 20 is stopped, and the cleaning water remaining in the cleaning cover 13 is drained out of the cleaning cover 13 through the discharge pipe 21.

Next, the device 29 is operated by a compressor 26 and a hot air generator 27.
, and valves 31 and 32, respectively, to supply zero port 14.
Drying air is blown into the closed space 20 from the cleaning tool 18 through the cleaning device 16.

In this state, the rotary disk 2 continues to rotate at a low speed. Therefore, the leaked parts are dried by the above-mentioned cleaning in rotation m2.

Finally, after completing the above steps, the rotary disk 2 is stopped and the cleaning unit (JJ) is removed from the molding machine, and the automatic cleaning of the powder contact portion of the rotary disk 2 is thus completed.

The present invention is not limited to the above embodiment.

For example, if the other cleaning cover 35 of the above-mentioned embodiment is omitted, cleaning may be performed with the rotary disk 2 in a stopped state, and after the cleaning of a part of the rotary disk 2 is completed, the rotary disk 2 can be moved at a certain angle. The cleaning unit 11 may be rotated or the cleaning unit 11 may be moved to cover other parts of the rotary disk 2 for cleaning.

Further, the cleaning unit 11 and the equipment unit 12 may be connected to be integrated.

When a nozzle is used in the cleaning tool 18 as in the above embodiment, drying air may be ejected from the nozzle before supplying the cleaning liquid to blow off powder adhering to the powder contact area.

In addition to the nozzle, an ultrasonic oscillator can be used as the cleaning tool 18. In this case, cleaning may be performed with enough cleaning liquid stored in the closed space 21 to immerse the powder contact portion.

Further, in the above embodiment, the cleaning tool 18 is provided to face the powder contacting part, but it may be provided in the vicinity of this opposing position, and if necessary, the cleaning action of the cleaning tool 18 can be improved. As long as the arrangement extends to the powder contact area, the arrangement and the number used are not limited.

Moreover, in the present invention, water, hot water, alcoholic water, etc. can be used as the cleaning liquid, and the supply of the cleaning liquid to the powder contacting part in the closed space 20 is not limited to the injection type of the above embodiment, but also the spray type, A water pouring method, a dripping method, etc. may also be used.

In addition, in the present invention, the drying air may be any of cold air, warm air, and hot air at room temperature, and
If the drying air is heated and has a temperature higher than room temperature, it is not necessarily necessary to blow it into the working inner hole 5.6.

Further, the cleaning liquid supply port and the drying air supply port may be provided separately.

In the above embodiment, the cleaning liquid is collected into the cleaning liquid tank 24 by the suction device 28 so that it can be recycled and used, but the cleaning liquid may be directly discarded.

In addition, when implementing the present invention, the specific structure, shape, position, etc. of the p1 cleaning cover, sealing material, supply port, drain port, cleaning tool, etc. shall be changed from the above-mentioned implementation unless it goes against the gist of the invention. It goes without saying that the present invention is not limited to the examples and can be configured and implemented in various ways.

The gist of the present invention described above is the structure described in the claims above. Therefore, according to the present invention, the cleaning cover that forms a sealed space is provided, and the rotary disk can be dried after cleaning, so that the powder contact portion of the rotary disk can be cleaned without contaminating the surrounding area. Further, the powder contacting part can be cleaned by washing, and since a plurality of scale mounting holes etc. can be cleaned at the same time, the powder contacting part of the rotary disk can be easily and reliably cleaned.

[Brief explanation of drawings]

FIG. 1 is a configuration explanatory diagram showing an embodiment of the present invention. 2... Rotating disk, 5, 6... Working inner hole, 2... Mounting hole, 13... Cleaning cover, 14, 15. 16...
Supply port, 17... Drain port, 18... Cleaning tool, J9.
... Seal material, 20 ... Closed space, 24 ... Cleaning liquid tank 25 ... Pump, 26 ... Compressor, 27 ...
・Hot air generator, 29...Cleaning cycle control device, 31
．． 3233...Valve.

Claims (1)

[Claims] A sealing material is attached to the edge of the opening, and a sealed space is formed between the outer surface of the rotary disk and a plurality of punch guide holes and mounting holes of the rotary disk, and a part of the rotary disk is covered. A cleaning cover that is detachably installed, a supply port provided on this cover for introducing cleaning liquid and drying air, a drain port provided at the bottom of the cleaning cover, and a cleaning cover provided inside the cleaning cover that connects to a rotary disk. 1. A rotary disk cleaning device for a rotary powder molding machine, comprising a cleaning tool disposed at a position facing a punch guide hole and a date mounting hole, or in the vicinity of the facing position.