JP2000350958A - Installation tool for elastic body film and apparatus for spraying powder material employing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily install an elastic film in extended state without loosening the film. SOLUTION: This elastic body film installation tool is provided with a seat 2 having a hollow h1, an upward protruding member 3 having a hollow h2, and a presser member 4 having a hollow h3 slightly larger than the outer circumference of the upward protruding member 3. An elastic film Et is put on the upward protruding member 3 mounted on the seat 2 and the presser member 4 is fastened to the seat 2, so that the elastic film Et is extended by the upward protruding member 3 and, in such a state of the elastic film, the outer circumferential part of the elastic film Et is pinched between a V-groove Dv formed in the seat 2 and a projected part formed in the presser member 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elastic film attaching device and a powder spraying device using the same, and more particularly to an elastic film attaching device which can be easily attached in a stretched state without sagging. And a powder spraying device using the same.

[0002]

2. Description of the Related Art Various devices using a diaphragm (elastic film) and a powder material spraying device using an elastic film having through holes have been proposed.

[0003]

However, in such a device using an elastic film, if the elastic film is attached in a slack state, the function of the device cannot be sufficiently exhibited. There is a problem.

Further, when such a device is used for a long period of time, there is a problem that the elastic film gradually loosens due to vibration, and the function of the device deteriorates with time. .

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and can easily and easily make an elastic film stretched evenly. It is another object of the present invention to provide an elastic film attachment that does not slack forever even when used, and a powder spraying device using the same.

[0006]

According to a first aspect of the present invention, there is provided an elastic membrane mounting device having a hollow pedestal, a hollow push-up member provided on the surface of the pedestal, and a hollow push-up member. A holding member having a hollow slightly larger than the outer circumference is provided, and a hollow formed in the pedestal is formed on the surface of the pedestal at a position outside the hollow formed in the pedestal, outside the outer circumference of the push-up member, in a ring shape. A V-shaped groove is formed so as to surround the V-shaped member, and a surface of the pressing member facing the pedestal is formed in a V-shape to fit into the V-shaped groove provided on the surface of the pedestal. A protrusion having a shape is provided, a push-up member is placed on the surface of the pedestal, an elastic film is placed on the push-up member, and the pressing member is placed on the pedestal so as to cover both the push-up member and the elastic film. By tightening against The push-up member pushes up the elastic body film in the direction of the holding member, so that the elastic body film stretched by the push-up member is stretched from the inner side to the outer circumferential side. Between the V-groove provided on the surface of the pedestal and the V-shaped protrusion provided on the surface of the holding member facing the pedestal, while being sandwiched between the holding member and the surface forming the hollow. I try to pinch while stretching.

In this elastic membrane mounting device, when the elastic membrane is placed on the push-up member placed on the pedestal and the holding member is tightened against the pedestal, the elastic membrane is moved by the push-up member. , And is pushed up in the direction of the holding member. As a result, the elastic film is extended from the inside of the elastic film to the outer peripheral side by being pushed up in the pressing member direction.

[0008] Initially, the elastic film stretched by the push-up member causes the pedestal to pass through a gap between the outer peripheral surface of the push-up member and the surface (inner peripheral surface) forming the hollow of the pressing member. And a V-shaped protrusion provided on the surface of the holding member facing the pedestal.

Further, when the pressing member is tightened to the pedestal, the elastic film forms the outer peripheral surface of the pushing member and the hollow of the pressing member while being pushed up in the direction of the pressing member by the pushing member. Surface (inner peripheral surface). Further, by being pushed up in the pressing member direction by the pushing member, the elastic film is extended from the inside of the elastic body film to the outer peripheral side, and the V groove provided on the surface of the pedestal is provided on the surface of the holding member facing the pedestal. The V-shaped protrusion provided on the surface of the pedestal and the V-shaped protrusion provided on the surface of the holding member facing the pedestal are portions inserted between the V-shaped protrusions. In between, it is pinched.

[0010] As described above, in this elastic film mounting device, the elastic film is placed on the push-up member placed on the pedestal.
With a simple operation of tightening the pressing member against the pedestal, the elastic film can be uniformly stretched.

According to a second aspect of the present invention, there is provided an elastic membrane attaching device according to the first aspect, wherein the push-up member has an inclined surface on an outer periphery thereof, which extends from the upper side to the lower side when viewed in cross section. Is provided.

[0012] In this elastic membrane attachment, since the inclined surface extending from the upper side to the lower side when viewed in cross section is provided on the outer periphery of the push-up member, it is pushed up in the direction of the holding member, so that it can be pushed from the inside of the elastic membrane. The portion extended to the outer peripheral side is between the V-shaped groove provided on the surface of the pedestal in a ring shape and the V-shaped protrusion provided on the surface of the holding member facing the pedestal in a ring shape. And it is easy to move.

[0013] As described above, in this elastic membrane mounting device, the elastic membrane is mounted on the push-up member mounted on the pedestal, and the pressing member is tightened to the pedestal by a simple operation. The elastic film can be stretched evenly.

Further, when the pressing member is tightened against the pedestal, the interval between the outer peripheral inclined surface of the push-up member and the hollow inner peripheral surface of the pressing member gradually decreases, so that the outer peripheral surface of the pressing member, Between the hollow inner peripheral surface of the holding member,
Since the holding member is firmly held, the elastic film does not loosen after the holding member is fastened to the base.

Thus, for example, when the diaphragm is stretched on the device or when the elastic film of the powder material spraying device is stretched, the elastic film can be stretched by the elastic film attachment. Since the elastic film does not loosen during the operation, the accurate operation of the device can be maintained for a long time.

According to a third aspect of the present invention, there is provided a powder material spraying device comprising: a conduit having one end and the other end; and a powder storage hopper connected in the middle of the conduit. The elastic membrane attachment according to claim 1 or 2, wherein an elastic membrane having a through hole is attached as the elastic membrane attached to the elastic membrane attachment, and pulsating air of positive pressure is applied from one end of the conduit. By supplying an oscillating wave and vibrating the elastic membrane having the through-hole, the powder material stored in the powder storage hopper is discharged into the conduit, and the powder discharged into the conduit is discharged into the conduit. The body material is mixed and dispersed with the positive pressure pulsating air vibration wave supplied in the conduit, and mixed with the positive pressure pulsating air vibration wave from the other end of the conduit, and the dispersed powder material is dispersed. It was made to spray.

Here, the term "pulsating air vibration wave" used in the present specification refers to a pulsating air wave in which a high pressure portion and a low pressure portion alternately appear in an air flow.

"Positive pressure" means that the pressure inside the device is higher than the pressure outside the device.

The "pulsating air vibration wave of positive pressure" includes a pulsating air vibration wave of which the peak and the valley of the vibration are both positive pressure and a pulsation of the vibration where the peak of the vibration is the positive pressure and the valley of the vibration is the atmospheric pressure. Includes both air vibration waves.

In this powder material spraying apparatus, a positive pressure pulsating air vibration wave is supplied into the conduit from one end of the conduit, so that it is provided at the discharge port of the powder storage hopper connected in the middle of the conduit. The elastic membrane vibrates up and down in synchronization with the pulsating air vibration wave of the positive pressure, whereby the through-hole provided in the elastic membrane allows the elastic membrane to enter the conduit and the powder storage hopper. The stored powder material is discharged.

By the way, in this powder material spraying apparatus, the elastic film attachment according to the first or second aspect is used,
The elastic membrane is attached to the outlet of the powder storage hopper.

Thus, the elastic membrane can be attached to the discharge port of the powder storage hopper without slackening, so that the elastic membrane is converted into a positive pressure pulsating air vibration wave supplied into the conduit. It will vibrate dependently. Accordingly, as long as the positive pressure pulsating air vibration wave supplied into the conduit is constant, the vibration of the elastic film becomes unique. As a result, in this powder material spraying device, as long as the positive pressure pulsating air vibration wave supplied from one end of the conduit into the conduit is kept constant, the powder material discharged from the through-hole of the elastic film is formed. Emissions are also constant.

Further, the powder material discharged into the conduit mixes with the pulsating vibration air of positive pressure supplied into the conduit,
In a dispersed state, the powder material is pneumatically transported to the other end of the conduit.In this powder material spraying device, the powder material discharged into the conduit from the through hole provided in the elastic membrane is subjected to positive pressure. As a result of the pneumatic transportation of the powder material to the other end of the conduit by the pulsating air vibration wave, as a medium for pneumatically transporting the powder material, a conduit as seen when a constant pressure flow of air is supplied into the conduit. There is no accumulation of powder material and no blow-through of powder material.

[0024] As a result, almost all of the powder material discharged into the conduit from the through hole of the elastic membrane is pneumatically transported to the other end of the conduit. The spray amount also becomes constant.

That is, this powder material spray device is suitable as a fixed-quantity feeder device.

According to a fourth aspect of the present invention, there is provided a powder material spraying apparatus according to the third aspect, wherein a dispersion chamber is provided below the elastic film fitting, and a conduit is provided in the middle thereof. A pulsating air vibration wave of positive pressure, provided so as to pass through the dispersion chamber and supplied from one end of the conduit, is located below the dispersion chamber,
The dispersing chamber is adapted to be introduced approximately tangentially and discharged from the dispersing chamber at a location above the dispersing chamber, generally tangentially, to the other end of the conduit.

The dispersion chamber is hermetically attached to the elastic membrane attachment.

In this powder material spraying apparatus,
A positive pressure pulsating air vibration wave is introduced from a position below the dispersion chamber generally from a tangential direction, and a positive pressure pulsating air vibration wave is discharged generally from a position above the dispersion chamber in a tangential direction. Therefore, the pulsating vibration air of positive pressure swirls in the dispersion chamber from a position below the dispersion chamber to a position above the dispersion chamber.

In the dispersion chamber, a positive pressure pulsating air vibration wave swirling from a position below the dispersion chamber to a position above the dispersion chamber causes the dispersion chamber to have the same shape as a cyclone. Has a sizing function.

Thus, even if the agglomerated large powder material is discharged from the through-hole of the elastic membrane into the dispersion chamber, such agglomerated large powder material is positioned below the dispersion chamber. Since the swirling continues, the agglomerated large powder material is not sprayed from the other end of the conduit.

Therefore, by using this powder material spraying device, a certain amount of powder material having a uniform particle size can be sprayed from the other end of the conduit.

Further, the agglomerated large powder material is dispersed in the small powder material by being engulfed in the swirling flow of the pulsating vibration air of positive pressure in the dispersion chamber. The powder material dispersed in this manner until the particle size reaches a predetermined value is discharged out of the dispersion chamber on the swirling flow of the pulsating vibration air of positive pressure. Large powder material is difficult to deposit.

In the powder material spraying device according to the fifth aspect, the powder material is a lubricant or a release agent used at the time of compression molding.

This powder material spraying device can spray a certain amount of a lubricant or a release agent from the other end of the conduit. It is suitable as a device for applying a lubricant to a mold, or a device for applying a release agent on a mold surface of a mold.

[0035]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an elastic film attachment according to the present invention and a powder material spraying apparatus using the same will be described in more detail with reference to the drawings.

FIG. 1 shows an elastic film attachment according to the present invention.
FIG. 2 is a perspective view schematically showing a state in which an elastic film is attached, FIG. 2 is an exploded perspective view schematically showing the configuration of the elastic film attachment shown in FIG. 1, and FIG. It is sectional drawing which shows roughly the structure of the elastic body film attachment shown in FIG.

The elastic film attachment 1 includes a pedestal 2, a push-up member 3, and a holding member 4.

The base 2 is provided with a hollow h1.
A ring-shaped mounting surface S1 for mounting the push-up member 3 is provided on the outer periphery of the hollow h1. Further, the pedestal 2 has a V groove D so as to surround the hollow h1 in a ring shape.
v is provided.

The push-up member 3 has a hollow h2. In this example, as shown in FIG. 3, the push-up member 3 is provided with a stepped portion Pl on its lower surface. When the push-up member 3 is placed on the pedestal 2, the stepped portion Pl is It is arranged on the mounting surface S1.

Further, in this example, when the push-up member 3 is placed on the pedestal 2, the lower extension P2 is provided so as to extend below the step P1 of the push-up member 3.
Are set in the hollow h <b> 1 of the pedestal 2. That is, the downwardly extending portion P2 of the push-up member 3 has an outer diameter D2.
However, it is precisely machined to a size equal to or slightly smaller than the inner diameter D1 of the hollow h1 of the pedestal 2.

Further, in this example, the push-up member 3 is provided with an inclined surface extending from the upper side to the lower side when viewed in cross section on the outer periphery of the upper part P3.

The holding member 4 has a hollow h3. Also, on the surface S4 of the holding member 4 facing the pedestal 2,
A ring-shaped, V-shaped projection Cv is provided so as to fit into a V-shaped groove Dv provided on the surface of the pedestal 2.

In FIGS. 1 and 2, reference numeral 5 denotes a fastening means such as a bolt.

In FIG. 2, a hole indicated by h4 is a fixing hole of the fastening means 5 formed in the pedestal 2, and a hole indicated by h6 is a fastening means formed in the pressing member 4. 5 fixing holes are each shown. In FIG. 2, a hole indicated by h5 is formed in the pedestal 2, and a fixing hole for attaching the elastic body film attachment 1 to a target device by a fixing means (not shown) such as a bolt. A hole indicated by h7 is formed in the holding member 4, and a fixing hole for attaching the elastic membrane attachment 1 to a target device by a fixing means (not shown) such as a bolt is provided. Is shown.

In this example, the inner diameter D4 of the hollow h3 of the holding member 4 is precisely machined to a size equal to or slightly larger than the outer diameter D3 of the push-up member 3.

Next, a procedure for attaching the elastic film to the elastic film attachment 1 will be described.

When attaching the elastic film Et to the elastic film attachment 1, first, the push-up member 3 is placed on the surface of the pedestal 2.

Next, the elastic film E is placed on the push-up member 3.
Place t.

FIG. 4 is a plan view schematically showing the elastic film Et.

This example shows a case where the elastic film attachment 1 is used as a powder material spraying means (quantitative feeder).
As shown in FIG. 4, an elastic film Et having a slit hole h8 at the center thereof so as to penetrate the elastic film Et is used.

Next, the pressing member 4 is placed on the push-up member 3 so as to cover both the push-up member 3 and the elastic film Et. At this time, the fixing holes h4 formed in the pedestal 2
. And a fixing hole h6 formed in the holding member 4.
・ Make sure to align with each of

Next, each of the fastening means 5 such as bolts is screwed into each of the fixing holes h4... And the fixing holes h6. Then, the holding member 4 is tightened.

In this elastic film attachment 1, the elastic film Et is placed on the push-up member 3 placed on the pedestal 2, and the pressing member 4 is tightened against the pedestal 2. The film Et is pushed up by the push-up member 3 in the direction of the holding member 4. As a result, the elastic film Et is extended from the inside of the elastic film Et to the outer peripheral side by being pushed up in the pressing member 4 direction.

Initially, the elastic film Et stretched by the push-up member 3 causes the elastic film Et between the outer peripheral surface P3 of the push-up member 3 and the surface (inner peripheral surface) of the holding member 4 forming the hollow h3. Through the gap, the V-groove Dv provided on the surface of the pedestal 2 and the V-shaped projection Cv provided on the surface of the holding member 4 facing the pedestal 2 are inserted.

Further, when the pressing member 4 is tightened to the pedestal 2 by each of the tightening means 5... Such as bolts, the elastic film Et is pushed up in the direction of the holding member 4 by the pushing-up member 3. Push-up member 3
Of the pressing member 4 and the inner peripheral surface of the hollow h3 of the holding member 4. Further, the elastic film E is pushed up by the pushing member 3 in the direction of the pressing member 4.
The portion extending from the inside of t to the outer peripheral side is a V groove Dv provided on the surface of the pedestal 2 and a V-shaped projection C provided on the surface of the holding member 4 facing the pedestal 2.
and v.

That is, in this elastic membrane attachment 1, the pedestal 2
When the elastic film Et is placed on the push-up member 3 placed thereon and the holding member 4 is tightened to the pedestal 2,
The elastic film Et is pressed by the push-up member 3 to the pressing member 4.
, Whereby the elastic film Et is stretched from the inner side to the outer peripheral side, and the outer peripheral portion of the elastic film Et stretched by the push-up member 3 in this manner. Are sandwiched between the V-groove Dv provided on the surface of the pedestal 2 and the V-shaped protrusion Cv provided on the surface of the holding member 4 facing the pedestal 2,
In the elastic film attachment 1, the elastic film Et is placed on the push-up member 3 placed on the pedestal 2, and the pressing member 4 is tightened to the pedestal 2 by a simple operation. The body membrane Et can be in a taut state.

Further, in the elastic film attaching tool 1, an inclined surface P3 is provided on the outer periphery of the push-up member 3 so that the lower surface extends from the upper side when viewed in cross section.

The inclined surface P3 corresponds to the elastic film mounting fixture 1
Now, since this is an important factor, this operation will be described in detail below.

That is, in the elastic film attaching tool 1, the inclined surface P 3 extending from the upper side to the lower side when viewed in cross section is provided on the outer periphery of the push-up member 3. The portion extended from the inside of the elastic film Et to the outer peripheral side by being pushed up by
Easily moves between a V-shaped groove Dv provided on the surface of the holding member 4 and a V-shaped projection Cv provided on the surface of the holding member 4 facing the pedestal 2 in a ring shape.

More specifically, the push-up member 3
When the outer diameter of the inclined surface P3 is sufficiently smaller than the inner diameter D4 of the hollow h3 of the holding member 4, the elastic film Et
Since the gap (interval) between the inclined surface P3 of the push-up member 3 and the surface forming the hollow h3 of the pressing member 4 is sufficient, the push-up member 3 causes the elastic film Et to move from the inside to the outside. The part stretched in this gap (interval)
Through the pedestal 2 and easily guided in the direction of the V-shaped groove Dv provided in a ring shape on the surface of the base 2.

Further, the inclined surface P3 provided on the outer periphery of the push-up member 3 is configured so that, when viewed in cross section, the upper side extends downward from the upper side. Is guided along the surface of the inclined surface P3 in the direction of the V-shaped groove Dv provided on the surface of the pedestal 2 in a ring shape.

Each of the fastening means 5 such as bolts is screwed into each of the fixing holes h4 and fixing holes h6. Holding member 4
By tightening, the inclined surface P3 of the push-up member 3
Gradually approaches the inner diameter D4 of the hollow h3 of the holding member 4, and the inclined surface P3 of the inclined surface P3 of the push-up member 3;
When the gap (interval) between the pressing member 4 and the surface forming the hollow h3 is approximately equal to the thickness (thickness) of the elastic film Et, the elastic film Et becomes the inclined surface of the push-up member 3. P
3 and the surface of the holding member 4 forming the hollow h3.

According to the above-described operation, the elastic film mounting tool 1 also mounts the elastic film Et on the push-up member 3 mounted on the pedestal 2 and then tightens the tightening means 5.
The elastic film Et can be stretched evenly by a simple operation of tightening the pressing member 4 with respect to the pedestal 2 using each of the.

When the holding member 4 is tightened to the pedestal 2 by using each of the tightening means 5 such as bolts, the inclined surface P3 of the outer periphery of the push-up member 3 and the holding member 4 The distance between the hollow inner peripheral surface is gradually reduced, and the space between the outer peripheral surface P3 of the push-up member 3 and the inner peripheral surface of the hollow h3 of the pressing member 4 is firmly held. After tightening, the elastic film Et does not loosen.

Further, in the elastic film attaching tool 1, if the elastic film Et is attached, the elastic film Et becomes the inclined surface P 3 of the push-up member 3 and the surface forming the hollow h 3 of the pressing member 4. And a V-shaped projection Cv provided in a ring shape on the surface of the holding member 4 facing the pedestal 2.
And between the pedestal 2 and the V-shaped groove Dv provided in a ring shape, the state is double locked.
After the pressing member 4 is fastened to the pedestal 2, the elastic film Et does not loosen.

Thus, for example, an apparatus using a diaphragm (for example, see the piezoelectric vibrating nozzle 71 shown in FIG. 19) or a powder material spraying apparatus using an elastic film (for example, FIGS. 9 and 15) And the powder material spraying device 31, 31V1, 31V2 shown in each of FIGS. 16A and 16B), when the elastic film Et constituting these devices is stretched, the elastic film attaching device 1 If the film Et is stretched,
During use, since the elastic film Et does not loosen, accurate operation of these devices can be maintained for a long period of time.

Next, a specific example of the use of the elastic membrane attachment 1 will be illustratively described.

FIG. 5 shows an example in which the elastic film attachment 1 is used.
1 is an overall configuration diagram schematically showing an external lubricating tablet press.

The external lubricating tablet press 11 comprises a pulsating air vibration wave generating device 21, a powder material spraying device 31, and a lubricant spraying device provided at predetermined positions of a rotary tablet press 41. The chamber 51, a lubricant suction device 61 for removing excess lubricant from the lubricant sprayed from the lubricant spray chamber 51, and control and supervision of the entire external lubricant tableting machine 11. And an arithmetic processing unit 71 for performing the operations.

The elastic membrane attachment 1 is attached to a powder material spraying device (quantitative feeder device) 31 (see a portion surrounded by a chain line IX in FIG. 5).

The pulsating air vibration wave generating device 21 includes a compressed air source 22 such as a blower and a pulsating air vibration wave converting device 23 for converting the compressed air generated by the compressed air source 22 into a positive pressure pulsating air vibration wave. And In FIG. 5, a member device indicated by 24 is a flow control device that is provided as necessary, is configured by an electromagnetic valve or the like, and adjusts the flow rate of the compressed air generated by the compressed air source 22.

In this example, the compressed air source 22 and the flow control device 24 are connected by a conduit T3, and the flow control device 24 and the pulsating air vibration wave converter 23 are connected by a conduit T4.
The compressed air generated from the compressed air source 22 is supplied to the flow control device 24 via the conduit T3, adjusted to a predetermined flow rate by the flow control device 24, and then connected via the conduit T4. Pulsating air vibration wave converter 24.

A member device indicated by 25 in FIG. 5 rotates a rotary cam (see a rotary cam 29 shown in FIG. 7) for converting compressed air into pulsating air vibration waves. 4 shows a rotation driving means.

The pulsating air vibration wave generating device 21 (more specifically, the pulsating air vibration wave converting device 23) and the powder material spraying device (quantitative feeder device) 31 are connected by a conduit T1. A pulsating air vibration wave of positive pressure generated by the air vibration wave generator 21 is transmitted through the conduit T1.
The material is supplied to a powder material spraying device (quantitative feeder device) 31.

Powder material spraying device (quantitative feeder device) 3
1 and the lubricant spray chamber 51 are connected by a conduit T2, discharged from a powder material spray device (quantitative feeder device) 31, and mixed with a positive pressure pulsating air vibration wave in the conduit T2. The dispersed lubricant (powder) is supplied to the lubricant spray chamber 51 via the conduit T2.

Next, the configuration of the rotary tablet press 41 will be described.

FIG. 6 is a plan view schematically showing the rotary tableting machine 41.

As the rotary tableting machine 41, an ordinary rotary tableting machine is used. That is, the rotary tableting machine 41 includes a rotary table 44 provided rotatably with respect to a rotating shaft, a plurality of upper punches 42, and a plurality of lower punches 43,.

The rotary table 44 has a plurality of dies 45.
Are formed, and a pair of upper punches 42 and a lower punch 43 are formed so as to correspond to each of the plurality of dies 45.
Are provided, and a plurality of upper punches 42, a plurality of lower punches 43, and a plurality of dies 45 are rotated in synchronization with each other.

A plurality of upper punches 42... Can be moved up and down at predetermined positions in the axial direction of the rotary shaft by a cam mechanism (not shown). Pestle 4
Are movable up and down in the axial direction of the rotary shaft at predetermined positions by the cam mechanism 50.

In FIG. 5 and FIG. 6, the member device indicated by 46 is a feed shoe for filling the molding material into each of the dies 45. Each of the member devices indicated by 48 is a slicing plate for making a fixed amount of the molding material filled therein.
Each of the tablet discharge scrapers provided to discharge the spill to the discharge chute 49 is shown.

In FIG. 6, the position indicated by R1 is a lubricant spraying point, and in this external lubricating tableting machine 11,
A lubricant spray chamber 51 is provided at the lubricant spray point R1. More specifically, the lubricant spray chamber 51
Are fixedly provided on a rotary table 44, and the rotary sprayer 44, a plurality of upper punches 42,..., And a plurality of lower punches 43,. , Upper punches 42, and lower punches 43,... Are sequentially coated with a lubricant. In addition, the mortar 45 in the lubricant spray chamber 51 is used.
, The upper punch 42 and the lower punch 43 will be described in detail later.

In FIG. 6, the position indicated by R2 is a molding material filling point. At the molding material filling point R2, the feed shoe 46 is used to insert the lower portion of the die 45 into the die 45 to a predetermined position. The molding material m is filled in the space formed by the punch 43.

In FIG. 6, the position indicated by R 3 is a preliminary tableting point. At the preliminary tableting point R 3, the space formed by the die 45 and the lower punch 43 is filled, By being rubbed, the molding material having a predetermined amount is formed into a pair of an upper punch 42 and a lower punch 45.
Thus, preliminary compression is performed.

In FIG. 6, the position indicated by R4 is the final tableting point. At the final tableting point R4, the pre-compacted molding material is formed by the upper punch 42 and the lower punch 45 forming a pair. It is compressed in earnest and compressed into a tablet t.

In FIG. 6, the position indicated by R5 is a tablet discharge point. At the tablet discharge point R5, when the upper surface of the lower punch 43 is inserted to the upper end of the die 45, it is discharged out of the die 45. The tablet t is used as a tablet discharging scraper 4.
8 discharges to the discharge chute 49.

Next, the configuration of the pulsating air vibration wave converter 23 constituting the pulsating air vibration wave generator 21 will be described in more detail.

FIG. 7 is a sectional view schematically showing the structure of the pulsating air vibration wave generator 21 with the pulsating air vibration wave converter 23 as the center.

The pulsating air vibration wave converting device 21 has a hollow chamber 26 having an air supply port 26a and an air discharge port 26b, a valve seat 27 provided in the hollow chamber 26, and a valve seat 27 for opening and closing the valve seat 27. And a rotary cam 29 for opening and closing the valve body 28 with respect to the valve seat 27.

The air supply port 26a is connected to a conduit T4, and the air discharge port 26b is connected to a conduit T1.

In FIG. 7, a portion indicated by reference numeral 26c indicates a pressure adjusting port provided in the hollow chamber 26 as necessary. The pressure adjusting port 26c has a pressure adjusting valve 30.
Are provided so as to conduct and cut off from the atmosphere.

The valve body 28 has a shaft 28a.
At the lower end of “a”, a rotation roller 28c is rotatably provided.

Further, a shaft body accommodating hole h9 for accommodating the shaft body 28a of the valve body 28 in an airtight and vertically movable manner is provided in the main body 23a of the pulsating air vibration wave converter 23.
Are formed.

The rotating cam 29 has an inner rotating cam 29a,
And an outer rotating cam 29b.

Inner rotating cam 29a and outer rotating cam 29
In each of b, a predetermined concavo-convex pattern is formed so as to be separated by a distance substantially corresponding to the diameter of the rotating roller 28c.

As the rotary cam 29, one having a concavo-convex pattern in which the lubricant (powder) is easily mixed and dispersed according to the physical properties of the lubricant (powder) is used.

A rotating roller 28c is rotatably fitted between the inner rotating cam 29a of the rotating cam 29 and the outer rotating cam 29b.

In FIG. 7, the member indicated by ax indicates the rotation axis of the rotation driving means 25 such as a motor.
, A rotating cam 29 is attached so as to be exchangeable.

Next, a method for supplying a pulsating vibration air of positive pressure into the conduit T1 by the pulsating vibration air generator 21 will be described.

When supplying a pulsating air vibration wave of positive pressure into the conduit T1, first, the rotation axis ax of the rotation driving means 25 is used.
In addition, depending on the physical properties of the lubricant (powder), the lubricant (powder) is mixed with the rotating cam 29 having an uneven pattern which is easily dispersed.
Attach.

Next, by driving the air source 22,
The compressed air is supplied into the conduit T3.

[0102] When the flow rate control device 24 is provided, the compressed air supplied into the conduit T3 is adjusted to a predetermined flow rate by the flow rate control device 24, and then the compressed air is supplied to the conduit T3.
The compressed air sent to the pipe 4 and to the conduit T4 at a predetermined flow rate is supplied from the air supply port 26a into the hollow chamber 26.

Further, by driving the air source 22 and the rotation driving means 25, the rotation cam 29 attached to the rotation axis ax of the rotation driving means 25 is rotated at a predetermined rotation speed.

As a result, the rotating roller 28c rotates between the inner rotating cam 29a and the outer rotating cam 29b of the rotating cam 29, which is driven to rotate at a predetermined rotation speed, and is provided on the rotating cam 29. As a result, the valve body 28 moves up and down with good reproducibility according to the uneven pattern.
The valve seat 28 is opened and closed according to the concave / convex pattern provided on the valve 9.

The hollow chamber 26 has a pressure adjusting port 26
In the case where c or the pressure regulating valve 30 is provided,
Pressure regulating valve 30 provided at pressure regulating port 26c
Is adjusted as appropriate to adjust the pressure of the positive pressure pulsating vibration air supplied to the conduit T1.

By the above operation, the pulsating vibration air of positive pressure is supplied to the conduit T1.

The wavelength of the positive pressure pulsating air vibration wave supplied into the conduit T1 is appropriately adjusted by the concavo-convex pattern provided on the rotating cam 29 and / or the rotating speed of the rotating cam 29. Also, the waveform of the pulsating air vibration wave of positive pressure is
The amplitude of the positive pressure pulsating air vibration wave can be adjusted by the concave / convex pattern provided on the rotating cam 29. When the driving amount of the air source 22 is adjusted or the flow control device 24 is provided. In the case of adjusting the flow control device 24, and when the pressure adjusting port 26c and the pressure adjusting valve 30 are provided, the pressure adjusting valve 30 provided in the pressure adjusting port 26c is appropriately adjusted. It can be adjusted by adjusting, or adjusting them in combination.

FIG. 8 shows the operation of the conduit T by the above operation.
FIG. 2 is an explanatory diagram exemplarily showing a pulsating air vibration wave of a positive pressure supplied to the inside of the vehicle.

As shown in FIG. 8A, the pulsating air vibration wave of positive pressure supplied into the conduit T1 is such that the peak of the amplitude of the pulsating air vibration wave is positive pressure and the valley is the atmospheric pressure. The pulsating air vibration wave may be a simple pulsating air vibration wave, or as shown in FIG. 8B, the peak and the valley of the amplitude of the pulsating air vibration wave may both be positive pressure pulsating air vibration waves.

Next, the configuration of the powder material spraying device (quantitative feeder device) 31 constituting the external lubricating tableting machine 11 will be described in more detail.

FIG. 9 is a cross-sectional view schematically showing, in an enlarged manner, a portion surrounded by a chain line IX in FIG.

Referring to FIG. 5 and FIG.
The powder material spraying device (quantitative feeder device) 31 includes a powder storage hopper 32 for storing a lubricant (powder), and a powder storage hopper 32 at an outlet 32 a of the powder storage hopper 32.
And a dispersion chamber 33 that is hermetically attached to the discharge port 32a of the powder storage hopper 32 via the elastic film Et.

The material input port of the powder storage hopper 32
A lid (lid 32b shown in FIG. 5) is detachably and airtightly attached.

More specifically, in this example, as shown in FIG. 9, a cylindrical body 34 is connected to the discharge port 32a of the powder storage hopper 32, and the elastic film Et is
It is provided so as to form the bottom surface of the cylindrical body 34.

The elastic film Et is attached to the elastic film attachment 1 shown in FIGS. 1, 2 and 3, and the upper end (pressing member 4) of the elastic film attachment 1 is attached to the cylindrical body 34. The dispersion chamber 33 is hermetically attached to the lower end (pedestal 2) of the elastic membrane attachment 1 at the lower end of the elastic membrane attachment 1.

In the upper cylindrical portion 34a of the cylindrical body 34, a material extracting valve 35 is provided. The material extracting valve 35 is connected to the powder storage hopper 32 based on information from a level sensor 36 described later. By opening and closing the discharge port 32a, the lubricant (powder) stored in the powder storage hopper 32 can be cut out.

The lower cylindrical portion 34b of the cylindrical body 34 is made of a transparent resin. More specifically, the lower cylindrical portion 34b is made of a light-transmissive material such as glass, acrylic resin, and polycarbonate resin.

As shown in FIG. 9, a level sensor 3 for detecting the amount of the lubricant (powder) deposited and stored on the elastic film Et of the lower cylindrical body 34b is provided on the lower cylindrical body 34b.
6 is attached. The level sensor 36 includes a light emitting element 36a that emits light such as infrared light or visible light, and a light receiving element 36b that receives light emitted from the light emitting element 36a. The light emitting element 36a and the light receiving element 36b are arranged to face each other with the lower cylindrical body 34b interposed therebetween.

Then, at the position where the level sensor 36 is provided (the height from the elastic film Et to the position where the level sensor 36 is provided) Hth, the elastic film E in the lower cylindrical portion 34b is set.
The amount of the lubricant (powder) accumulated and stored on t can be detected.

That is, the elastic film Et in the lower cylindrical portion 34b
When the amount of the lubricant (powder) deposited and stored on the upper side exceeds the position (the height of the position where the level sensor 36 is provided from the elastic film Et) Hth where the level sensor 36 is provided, the light emitting element 36a irradiates the light. The light is blocked by the lubricant (powder) and cannot be received (turned off) by the light receiving element 36b. At this time, the lubrication deposited and stored on the elastic film Et in the lower cylindrical portion 34b is performed. Elastic film Et of powder (powder)
It can be detected that the height H from above exceeds the height Hth (H> Hth).

The elastic film Et in the lower cylindrical portion 34b
When the amount of the lubricant (powder) deposited and stored on the lower side is less than the position (the height of the position where the level sensor 36 is provided from the elastic film Et) Hth where the level sensor 36 is provided.
Since the light emitted from the light emitting element 36a can be received (turned on) by the light receiving element 36b, at this time, the lubricant (powder) deposited and stored on the elastic film Et in the lower cylindrical portion 34b. It can be detected that the height H from above the elastic film Et is less than the height Hth (H <Hth).

In this example, the material extracting valve 35 moves up and down in accordance with the detection value of the level sensor 36 so that the discharge port 32a of the powder storage hopper 32 can be closed or opened. I have. More specifically, in the powder material spraying device (quantitative feeder device) 31, the light emitting element 36 a of the level sensor 36 is turned on while the powder material spraying device (quantitative feeder device) 31 is driven. When the light emitted from the light emitting element 36a cannot be received by the light receiving element 36b (turned off), the material cutout valve 35 is moved upward to close the discharge port 32a of the powder storage hopper 32, The light emitted from the light emitting element 36a is received by the light receiving element 36b, and the light is turned on. ), And moves the material extraction valve 35 downward, so that the powder storage hopper 3
The second discharge port 32a is kept open until the light receiving element 36b cannot receive light (turns off), thereby driving the lower material cylinder while driving the powder material spraying device (quantitative feeder device) 31. On the elastic film Et in the body part 34b,
An approximately constant amount of lubricant (powder) is stored and deposited.

The inside of the dispersion chamber 33 has a substantially cylindrical shape so that the pulsating vibration air of the positive pressure easily becomes a swirling flow inside. Note that, here, an example is shown in which the inside of the dispersion chamber 33 has a substantially cylindrical shape, but the inside of the dispersion chamber 33 has a pulsating air vibration wave of positive pressure swirling inside. What is necessary is just to be made into a shape that is easy to flow, and the internal shape is not necessarily
The present invention is not limited to the case of having a substantially cylindrical shape.

Further, a pulsating air vibration wave introduction port 33a is provided in the dispersion chamber 33 at a position below and in a direction substantially tangential to the inner peripheral surface of the dispersion chamber 33, and the dispersion chamber 33 is provided above the dispersion chamber 33. A discharge port 33b is provided substantially in a tangential direction on the inner peripheral surface. The conduit T is connected to the pulsating air vibration wave introduction port 33a.
1 is connected, and a conduit (a conduit T2 shown in FIG. 5) is connected to the outlet 33b.

Here, the position of the pulsating air vibration wave introduction port 33a provided in the dispersion chamber 33 will be described in more detail with reference to FIG.

FIG. 10 is a plan view schematically showing the position of the pulsating air vibration wave introduction port 33a provided in the dispersion chamber 33 when the dispersion chamber 33 is viewed in a plan view. FIG. FIG. 10B is an explanatory view illustrating a preferable mounting position of the pulsating air vibration wave introduction port 33a with respect to FIG.
Is a pulsating air vibration wave inlet 33a for the dispersion chamber 33.
It is explanatory drawing explaining the substantially attachable position of.

[0127] In each of Figs. 10 (a) and 10 (b), the curved arrows indicate the direction of the swirling flow of the positive pressure pulsating air vibration wave generated in the dispersion chamber 33. Is shown.

In order to generate a swirling flow of a positive pressure pulsating air vibration wave in the dispersion chamber 33, the pulsating air vibration wave introduction port 33 a is provided with respect to the inner peripheral surface of the dispersion chamber 33. Therefore, it is preferable that the power supply is provided substantially in the tangential direction (the direction indicated by the broken line Lt in FIG. 10A) (FIG. 10A).
(A)).

However, the pulsating air vibration wave inlet 33
As shown in FIG. 10 (a), a does not need to be provided substantially in a tangential direction with respect to the inner peripheral surface of the dispersion chamber 33. ,
As far as one dominant swirl flow can be formed, FIG.
As shown in FIG. 10, a direction substantially equivalent to a tangential direction (for example, a direction indicated by a broken line Lt in FIG. 10B) with respect to the inner circumferential surface of the dispersion chamber 33 (that is, the inner circumference of the dispersion chamber 33). It may be provided in a tangential direction of the surface (for example, a direction parallel to the broken line Lt in FIG. 10B).

Note that the pulsating air vibration wave introduction port 33a is connected to FIG.
When the dispersing chamber 33 is provided in the direction of the center line of the dispersing chamber 33 as shown by the imaginary line Lc during 0 (b), the shape of the dispersing chamber 33 becomes
In the case of a substantially cylindrical shape, two swirling flows which cannot be said to be dominant are generated. Therefore, the swirling flow of the positive pressure pulsating air vibration wave is provided in the dispersion chamber 33 in such a direction. However, it is not very preferable when considering the generation of.

Next, regarding the positional relationship between the pulsating air vibration wave introduction port 33a and the discharge port 33b provided in the dispersion chamber 33,
This will be described in detail with reference to FIG.

FIG. 11 is a diagram schematically illustrating the positions of the pulsating air vibration wave introduction port 33a and the discharge port 33b provided in the dispersion chamber 33 when the dispersion chamber 33 is viewed in plan, and FIG. FIG. 11B is an explanatory view illustrating a preferable mounting position of the pulsating air vibration wave introduction port 33a and the discharge port 33b with respect to the dispersion chamber 33. FIG. It is explanatory drawing explaining the substantially attachable position with the outlet 33b.

In FIGS. 11A and 11B, the curved arrows indicate the direction of the swirling flow of the positive pressure pulsating air vibration wave generated in the dispersion chamber 33. Is shown.

The discharge port 33b is connected to the dispersion chamber 33 as shown in FIG.
In the case where it is provided at a position as shown in FIG.
The discharge port 33b is provided in a direction opposite to the direction of the swirling flow of the pulsating air vibration wave (the traveling direction of the air) generated in the inside. In this case, the discharge port 33b disperses and flows into the air. The discharge efficiency of the converted lubricant (powder) can be set low.

Conversely, when it is desired to increase the discharge efficiency of the lubricant (powder) dispersed in air and fluidized at the discharge port 33b, as shown in FIG.
Like the outlet 33b1 or the outlet 33b2, the dispersion chamber 3
It is preferable to provide the outlet 33b in the forward direction of the swirling flow of the positive pressure pulsating air vibration wave generated in the inside 3.

In FIG. 9, a member device indicated by 37 is imaging means for a CCD camera or the like provided for confirming the operation of the material extracting valve 35, and a member device indicated by 38 is a laser beam or the like. By irradiating light and receiving scattered light scattered by a lubricant (powder) (not shown) falling from an outlet 32a of the powder storage hopper 32, the outlet 32a of the powder storage hopper 32 is received. A sensor for examining the state of the lubricant (powder) (not shown) that falls from the sensor device, and a member device indicated by 39 irradiates light such as a laser beam, and also irradiates a hole (not shown) of the elastic film Et. In the example, the slipper is dropped from the slit hole h8 and is entrained in the swirling, positive pressure pulsating air vibration wave generated in the dispersion chamber 33, mixed, dispersed, and fluidized. By powder (powder) (not shown) By receiving scattered light scattered, a sensor to determine the status of the lubricant in the dispersion chamber 33 (powder) (not shown.) Each shows.

The member device denoted by reference numeral 40 is a light emitting element 4
0a and a light receiving element 40b are shown, and in this example, the level sensor 4
With 0, the remaining amount of the lubricant (powder) stored in the powder storage hopper 32 is detected.

Incidentally, these member devices 37, 38, 39,
Reference numeral 40 is provided as needed, and is not an essential component. Next, the operation of the powder material spraying device (quantitative feeder device) 31 will be described.

First, when the lubricant (powder) is quantitatively supplied to the lubricant spray chamber 51 using the powder material spraying device (quantitative feeder device) 31, the powder storage hopper is first used. A lubricant (powder) is accommodated in 32, and a lid 32 b is hermetically attached to a material input port of the powder storage hopper 32.

Further, the lubricant (powder) is mixed with the rotation axis ax of the rotation driving means 25 of the pulsating air vibration wave converter 23 according to the physical properties of the lubricant (powder), and the uneven pattern is easily dispersed. Is attached.

Next, by driving the air source 22 and rotating the rotation driving means 25 of the pulsating air vibration wave converter 23 at a predetermined rotation speed, a desired flow rate, pressure, wavelength, A pulsating, pulsating air oscillating wave is provided. The level sensor 36 is set to the operating state.

When the level sensor 36 is activated,
Since light is emitted from the light emitting element 36a and light emitted from the light emitting element 36a is received by the light receiving element 36b,
At this time, the material extraction valve 35 provided at the discharge port 32a of the powder storage hopper 32 moves downward to open the discharge port 32a.
The lubricant (powder) stored in the powder storage hopper 32
Is discharged into the cylindrical body 34 from the discharge port 32a, and is deposited on the elastic film Et.

Lubricant (powder) deposited on elastic film Et
However, the height H from the elastic film Et is
Exceeds the height Hth at the position where the light-receiving element 36b is provided, the light emitted from the light-emitting element 40a is blocked by the lubricant (powder) deposited on the elastic film Et.
Does not receive the light emitted from the light emitting element 36a. As a result, the discharge port 32a of the powder storage hopper 32
Is moved upward and the outlet 32a is closed, so that the lubricant (powder) is used.
Is deposited on the elastic film Et from the elastic film Et to a height Hth at a position where the level sensor 36 is provided.

The pulsating vibration air of positive pressure supplied into the conduit T1 is, as shown in FIG.
3a, a positive pressure pulsating air vibration wave is supplied from the lower side to the upper side in the dispersion chamber 33, and swirls like a tornado from the lower part to the upper part.
Is discharged from

The pulsating vibration air of the swirling positive pressure generated in the dispersion chamber 33 does not lose its properties as a pulsating vibration air. Vibrates according to the frequency, amplitude and waveform of the wave.

FIG. 12 is an explanatory diagram schematically illustrating a phenomenon that occurs in the elastic film Et when a pulsating vibration air of positive pressure is sent into the dispersion chamber 33.

For example, the pulsating vibration air of positive pressure sent into the dispersion chamber 33 becomes a mountain state, and the pressure Pr33 in the dispersion chamber 33 becomes the pressure Pr3 in the powder storage hopper 32.
2 (pressure Pr33> pressure Pr3
In (2), as shown in FIG. 12A, the elastic film Et is elastically deformed so that its central portion is curved upward.

At this time, the hole (slit hole) h8 has an open upper side when viewed in cross section.
The lubricant (powder) stored in the powder storage hopper 32 falls into the V-shaped hole (slit hole) h8, which has a substantially V-shape.

Next, for example, the positive pressure pulsating air vibration wave sent into the dispersion chamber 33 shifts from the peak state to the valley state, and the pressure Pr33 in the dispersion chamber 33 decreases, and the powder storage hopper When the pressure becomes substantially equal to the pressure Pr32 in the pressure 32 (pressure Pr33 = pressure Pr32), the elastic film Et that has been curved upward returns to its original state due to its restoring force.

At this time, the hole (slit hole) h8, which has been opened at the upper side and has a substantially V-shape, is also going to return to the original state.
When it becomes substantially V-shaped, a part of the lubricant (powder) that has fallen into the hole (slit hole) h8 is sandwiched in the hole (slit hole) h8 (FIG. 12 (b)).

Next, for example, the pulsating vibration air of positive pressure sent into the dispersion chamber 33 is in a trough state, and the pressure Pr33 in the dispersion chamber 33 is lower than the pressure Pr32 in the powder storage hopper 32. When the pressure becomes lower (pressure Pr33 <pressure Pr32), as shown in FIG. 12C, the elastic film Et is elastically deformed into a shape in which the center portion is curved downward.

At this time, the bottom of the hole (slit hole) h8 is open when viewed in cross section.
A part of the lubricant (powder) which has a substantially inverted V shape and is interposed in the hole (slit hole) h <b> 8 falls into the dispersion chamber 33.

The lubricant (powder) dropped into the dispersion chamber 33 is mixed with the positive pressure pulsating vibration air swirling in the dispersion chamber 33, dispersed, fluidized, and discharged. 33
b, it is sent out into the conduit T2 together with the pulsating air vibration wave of positive pressure.

Lubricant (powder) mixed with positive pressure pulsating air vibration wave and sent out in a dispersed state into conduit T2
Is pneumatically transported by a pulsating air vibration wave of positive pressure,
The other end (see the other end e2 of the conduit T2 shown in FIGS. 5 and 6) is supplied into the lubricant spray chamber 51.

The discharge of the lubricant (powder) into the dispersion chamber 33 through the hole (slit hole) h8 of the elastic film Et as described above is performed by using the powder material spraying device (quantitative feeder). This is repeated while moving the device 31).

In the powder material spraying device (quantitative feeder device) 31, while the powder material spraying device (quantitative feeder device) 31 is moving, the light emitting element 36a of the level sensor 36 is turned on, and If the element 36b receives light emitted from the light emitting element 36a,
The material cutout valve 35 is moved downward to open the discharge port 32a of the powder storage hopper 32. When the light receiving element 36b stops receiving light emitted from the light emitting element 36a, the material cutout valve 35 is moved upward. To a state in which the discharge port 32a of the powder storage hopper 32 is closed, so that a substantially constant amount (a position where the level sensor 36 is provided (from the elastic film Et) Level sensor 3
The lubricant (powder) having a height Hth) at the position where 6 is provided is present.

In this powder material spraying device (quantitative feeder device) 31, the vertical vibration of the elastic film Et having the central portion as the antinode of vibration and the outer peripheral portion as a node of vibration is as follows.
It vibrates uniquely according to the frequency, amplitude and waveform of the pulsating vibration air of positive pressure supplied into the dispersion chamber 33. Therefore, as long as the positive pressure pulsating air vibration wave supplied into the dispersion chamber 33 is kept constant, a constant amount of lubricant (powder) is always used.
Through the hole (slit hole) h8 of the elastic film Et,
Since the powder material is accurately discharged into the dispersion chamber 33, the powder material spraying device (quantitative feeder device) 31 is intended for, for example, a certain amount of powder (in this example, a lubricant (powder)). It is excellent as a device for supplying to a place (in this example, the lubricant spray chamber 51).

In the powder material spraying device (quantitative feeder device) 31, if the frequency, amplitude and waveform of the pulsating air vibration wave of positive pressure supplied into the dispersion chamber 33 are controlled, a desired location ( This example also has an advantage that the amount of powder (in this example, lubricant (powder)) supplied to the lubricant spray chamber 51 can be easily changed.

Further, in the powder material spraying device (quantitative feeder device) 31, the pulsating vibration air of positive pressure is formed into a swirling flow from below to above in the dispersion chamber 33. Even if particles having a large particle diameter are contained in the powder discharged in this example (in this example, a lubricant (powder)), most of them are swirling in the dispersion chamber 33. By being entrained in the pulsating air vibration wave of positive pressure, it is crushed to a small particle size.

In addition, in the powder material spraying device (quantitative feeder device) 31, the pulsating vibration air of positive pressure is formed into a swirling flow from below to above in the dispersion chamber 33. 33 has a classification function similar to a cyclone. As a result, a powder having a substantially predetermined particle size (in this example, a lubricant (powder)) is discharged from the discharge port 33b into the conduit T2. On the other hand, the agglomerated particles having a large particle diameter continue to swirl at a lower position in the dispersion chamber 33 and are entrained in the pulsating vibration air of positive pressure, which is swirling in the dispersion chamber 33, so that the agglomerates are formed. After being adjusted to a predetermined particle size while being dispersed, it is discharged from the outlet 33b into the conduit T2.

Accordingly, if this powder material spraying device (quantitative feeder device) 31 is used, a powder having a uniform particle size (in this example, a lubricant spraying chamber 51) is provided at a target place (in this example, the lubricant spraying chamber 51). , Lubricant (powder)).

The powder (lubricant (powder in this example)) supplied into the conduit T2 is pneumatically transported to the other end e2 of the conduit T2 by the pulsating vibration air of positive pressure. Become.

Thus, in the powder material spraying device (quantitative feeder device) 31, the powder (in this example, the lubricant (powder) in this example) supplied into the conduit T2 is supplied to the other end e of the conduit T2.
Up to 2, the powder accumulation phenomenon in the conduit T2 and the powder blow-through phenomenon in the conduit T2 hardly occur, as seen in an apparatus that pneumatically transports the air with a constant flow rate of steady pressure air.

Therefore, in this powder material spraying device (quantitative feeder device) 31, the initial powder (the lubricant (powder in this example)) discharged from the discharge port 33b of the dispersion chamber 33 into the conduit T2 is used. In this state, the powder (in this example, the lubricant (powder)) is discharged from the other end e2 of the conduit T2, so that the powder (the lubricant (powder) is sprayed from the other end e2 of the conduit T2) In this example, the quantitativeness of the lubricant (powder) can be precisely controlled.

Further, in this powder material spraying device (quantitative feeder device) 31, while the powder material spraying device (quantitative feeder device) 31 is moving, the powder material spraying device (quantitative feeder device) 31 is always placed on the elastic film Et.
Generally, a certain amount of powder (in this example, a lubricant (powder) in a position where the level sensor 36 is provided (height Hth from the elastic film Et to a position where the level sensor 36 is provided)) is present. Therefore, the amount of the powder (the lubricant (powder) in this example) discharged from the hole (slit hole) h8 of the elastic film Et is equal to the amount of the powder (the lubricant (powder)) existing on the elastic film Et. In this example, the phenomenon that the amount of the lubricant (powder) fluctuates does not occur.
The powder material spraying device (quantitative feeder device) 31 is, for example, a fixed amount of powder (in this example, a lubricant (powder)).
At the intended location (in this example, the lubricant spray chamber 51)
It is excellent as a device to supply to.

Further, if this powder material spraying device (quantitative feeder device) 31 is used, for example, agglomerated large powder (in this example, a lubricant (powder)) is discharged into the dispersion chamber 33. Even if most of the particles are swirled in the pulsating vibration air of positive pressure, which is swirling in the dispersion chamber 33, the agglomerates are adjusted to a predetermined particle size while being dispersed, and are discharged from the outlet 33b. Is discharged into the conduit T2, so that the aggregated large powder (in this example, the lubricant (powder)) hardly accumulates in the dispersion chamber 33.

As a result, in the powder material spraying device (quantitative feeder device) 31, even if the powder material spraying device (quantitative feeder device) 31 is driven for a long time, In this example, since the lubricant (powder) does not accumulate, the number of operations for cleaning the inside of the dispersion chamber 33 can be reduced.

Therefore, when this powder material spraying device (quantitative feeder device) 31 is attached to the external lubricating tableting machine 1, continuous tableting is performed using the external lubricating tableting machine 1. Since the operation of cleaning the inside of the dispersion chamber 33 during the operation is almost unnecessary, if the external lubricating tableting machine 1 is used, an external lubricating tablet (a lubricating agent is contained inside the tablet) Not tablets)
Can be manufactured efficiently.

In addition, in this powder material spraying device (quantitative feeder device) 31, the elastic film Et
And the elastic film attachment 1 shown in FIG. 3 is used to make the powder material spraying device (quantitative feeder device) quantitative because the elastic film Et is loosened because the elastic film Et is loosened. There is no loss of sex.

Next, the configuration of the lubricant spray chamber 51 will be described in detail.

FIG. 13 is a sectional view schematically showing the configuration of the lubricant spray chamber 51 along the line XIII-XIII in FIG.

The lubricant spray chamber 51 has a diameter slightly larger than the diameter of the dies 43... Formed on the rotary table 44, and has a lower surface S51a and an upper surface S51b each having an open shape. Has become. Above the upright wall W51 of the lubricant spray chamber 51, an upper punch receiving recess for storing the upper punches 42 in the lubricant spray chamber 51 in the rotational orbit direction of the upper punches 42. 51a is formed as needed.

The upright wall W51 of the lubricant spray chamber 51 is connected to a tip e2 of a conduit T2, from which the lubricant is supplied into the lubricant spray chamber 51 via the conduit T2. The powder (in this example, a lubricant (powder)) mixed and dispersed with the positive pressure pulsating air vibration wave is sprayed together with the positive pressure pulsating air vibration wave.

Further, one end e5 of a suction duct T5 connected to the suction means 62 of the lubricant suction device 61 is connected to the upright wall W51 of the lubricant spray chamber 51, and the suction means 6
2 is driven, from this one end e5, the lubricant spray chamber 51
Powder (in this example, lubricant (powder))
Among them, extra powder (in this example, lubricant (powder)) can be sucked.

The lubricant spraying chamber 51 is fixedly provided at the lubricant spraying point R1 on the rotary table 44 so as to be positioned on the rotation orbit of the dies 45... Formed on the rotary table 44. Have been. Then, the lower surface S51a of the lubricant spray chamber 51 is brought into contact with the rotary table 44 on the surface S44, and when the rotary table 44 is rotated, the surface S44 of the rotary table 44 slides on the lower surface S51a. It is made to move.

In the lubricant spray chamber 51, the upper punch 42
The application of the lubricant (powder) to the lower punches 43 and the dies 45 is performed as follows.

First, a lubricant (powder) mixed and dispersed with a positive pressure air pulsation wave is sprayed into the lubricant spray chamber 51 from the tip e2 of the conduit T2. Also, the suction means 62
By driving the suction means 62 by appropriately adjusting the drive amount of the lubricant, excess lubricant (powder) among the lubricant (powder) sprayed into the lubricant spray chamber 51 is removed. One end e of T5
Aspirate from 5. Thereby, the inside of the lubricant spray chamber 51 is
A certain concentration of lubricant (powder) mixes with the positive pressure air pulsation wave and is kept in a dispersed state.

Then, the rotary table 44, the upper punch 42,.
By rotating the lower punches 43 in a synchronized manner, the mortar 4 sent below the lubricant spray chamber 51 is rotated.
5, a surface (upper surface) S43 of the lower punch 43 inserted to a predetermined position, and a lower punch 4 of an inner peripheral surface S45 of the die 45.
3 and the surface (lower surface) S4 of the upper punch 42 sent into the lubricant spray chamber 51.
2, a lubricant (powder) is sequentially applied.

In the lubricant spray chamber 51, the surface (upper surface) S 43 of the lower punch 43, the inner peripheral surface S 45 of the die 45, the portion above the surface (upper surface) S 43 of the lower punch 43, and the upper punch 42 Since the lubricant (powder) is applied to the surface (lower surface) S42 in the presence of a positive pressure air pulsation wave,
Surface (upper surface) S43 of lower punch 43, inner peripheral surface S45 of mill 45
Above the surface (upper surface) S43 of the lower punch 43, and / or
Alternatively, even if an excess lubricant (powder) adheres to the surface (lower surface) S42 of the upper punch 42, the surface (upper surface) S43 of the lower punch 43 or , Mill 4
Lubricant (powder) that has excessively adhered to a portion above the surface (upper surface) S43 of the lower punch 34 and the surface (lower surface) S42 of the upper punch 42 of the inner peripheral surface S45 of the fifth embodiment is blown off. Further, since the lubricant (powder) blown out in this manner is sucked from one end e5 of the suction duct T5, the surface (upper surface) S43 of the lower punch 43 and the lower punch S45 on the inner peripheral surface S45 of the die 45. The necessary minimum amount of lubricant (powder) is uniformly applied to the portion above the surface (upper surface) S43 of the 43 and the surface (lower surface) S42 of the upper punch 42.

Next, the configuration of the lubricant suction device 61 will be described in detail.

FIG. 14 shows the lubricant suction device 61 shown in FIG.
FIG. 2 is a configuration diagram schematically showing an enlarged view of a portion of FIG.

The lubricant suction device 61 includes a suction means 62 such as a blower and a suction duct T5 connected to the suction means 62.
And

One end of the suction duct T5 (see one end e2 of the suction duct T5 shown in FIG. 5) is connected to the lubricant spray chamber 51, and two branch pipes T5a,
It is set to T5b, and further, on the way, combined into one conduit T5c, and then connected to the suction means 62.

The branch pipe T5a is provided with a conduit opening / closing means v1 such as an electromagnetic valve and a light transmission type powder concentration measuring means 63 in the direction of the suction means 62 from the side closer to one end e2 of the suction duct T5. The light transmission type powder concentration measuring means 63 includes a measurement cell 64 and a light transmission type measurement device 65.

The measurement cell 64 is made of quartz or the like.
It is connected in the middle of the branch pipe T5a.

The light scattering type measuring device 65 includes a laser beam irradiation system device 65a for irradiating a laser beam, and a scattered light receiving system device 65b for receiving light radiated from the laser beam irradiation system device 65a and scattered by the object to be detected. Mie
Based on the theory, it is possible to measure the flow rate, particle size, particle size distribution, concentration and the like of the detection target. In this example, a laser beam irradiation system 65a and a scattered light receiving system 65b
Means that the measurement cell 64 is interposed therebetween, and is substantially opposed to each other. At the measurement cell 64, the flow rate, particle size, and the like of the powder (in this example, the lubricant (powder)) flowing in the branch pipe T5a The particle size distribution and the concentration can be measured.

The branch pipe T5a is provided with conduit opening / closing means v1 such as an electromagnetic valve.

The conduit T5c is provided with conduit opening / closing means v1 such as an electromagnetic valve.

When adjusting the concentration of the lubricant (powder) in the lubricant spraying chamber 51 using the lubricant suction device 61,
The conduit opening / closing unit v1 and the conduit opening / closing unit v2 are opened, the conduit opening / closing unit v3 is closed, and the suction unit 62 is opened.
Drive.

Further, by driving the pulsating air vibration wave generating device 21 and the powder material spraying device (quantitative feeder device) 31, respectively, the pulsating air vibration wave is mixed with the positive pressure pulsating air vibration wave from the tip e2 of the conduit T2 and dispersed. The lubricant (powder) is supplied into the lubricant spray chamber 51 together with the pulsating vibration air of positive pressure.

Then, a part of the lubricant (powder) supplied into the lubricant spray chamber 51 is transferred to each of the upper punches 42. Surface (lower surface)
S42, each surface (upper surface) of the lower punch 43... S43,
And excess lubricant (powder) is used for application to the inner peripheral surface S45 of each of the dies 45.
From the one end e5 through the branch pipe T5a and the conduit T5c to the suction means 62.

At this time, the light transmission type powder concentration measuring means 63
By driving the light transmission type measurement device 65 constituting
The flow rate, particle size, particle size distribution, concentration, and the like of the lubricant (powder) flowing in the measurement cell 64, that is, in the branch pipe T5a, are measured.

The driving amount of the suction means 62 and the driving amount of the pulsating air vibration wave generator 21 are appropriately adjusted based on the measured values of the light transmission type measuring device 65, so that the lubricant spray chamber can be adjusted. The concentration of the lubricant (powder) in 51 is adjusted.

When the above operation is performed, the lubricant (powder) adheres to the inner peripheral surface of the measuring cell 64, and the light transmission type measuring device 65 moves the inner peripheral surface of the measuring cell 64. Due to the effect of the lubricant (powder) adhered to the surface, there arises a problem that the flow rate and the like of the lubricant (powder) flowing in the branch pipe T5a cannot be measured accurately. In such a case, it is necessary to perform a correction for removing the influence (noise) of the lubricant (powder) attached to the inner peripheral surface of the measurement cell 64 from the measurement value of the light transmission type measurement device 65. At 61, when measuring the influence (noise) of the lubricant (powder) attached to the inner peripheral surface of the measurement cell 64, the suction means 62 is maintained in a driven state, and the conduit opening / closing means v2 is closed. , Open the conduit opening / closing means v3. Then, the lubricant (powder) sucked into the suction duct T5 from one end e5 of the suction duct T5 is sucked into the suction means 62 through the branch pipe T5b and the conduit T5c, and is drawn into the branch pipe T5a. Means that the lubricant (powder) does not pass.

At this time, if the light transmission type measuring device 65 is driven, the influence (noise) of the lubricant (powder) attached to the measuring cell 64 can be measured.

The measured value of the influence (noise) of the lubricant (powder) adhering to the measurement cell 64 is temporarily stored in the storage means of the arithmetic processing unit 71, for example.

Thereafter, the suction means 62 is maintained in a driven state, the conduit opening / closing means v2 is opened, the conduit opening / closing means v3 is closed, and a lubricant (powder) is passed through the branch pipe T5a. , The powder concentration measuring device 63 is driven to measure the flow rate and the like of the lubricant (powder) passing through the branch pipe T5a, and stored in advance in the storage means of the arithmetic processing unit 71, Based on the measured value of the influence (noise) of the lubricant (powder) attached to the powder concentration measuring device 63, the measurement cell 64 is obtained from the measured value of the light transmission measuring device 65.
A correction value is calculated by removing the influence (noise) of the lubricant (powder) adhering to the device. Based on this correction value, the driving amount of the suction means 62 and the rotation of the pulsating air vibration wave generator 21 are calculated. The concentration of the lubricant (powder) in the lubricant spray chamber 51 is adjusted by appropriately adjusting the speed or / and the driving amount of the supplied air amount.

In the external lubricating tableting machine 11 shown in FIG. 5, the arithmetic processing device 71 and the flow control device 25 are connected by a signal line L1. Thus, the flow control device 25 can be adjusted. The arithmetic processing unit 71 and the rotation driving unit 25 are connected by a signal line L2, and a rotation signal of the rotation driving unit 25 (the rotation axis ax shown in FIG. ) Can be controlled.

In this external lubricating tableting machine 11, the arithmetic processing unit 71 and the suction unit 62 are connected by a signal line L3. The drive amount 62 can be controlled. Further, the arithmetic processing unit 71 and the light transmission type powder concentration measuring means 63 (more specifically, the light transmission type measurement unit 65) are connected by a signal line L2. In response to the command signal from the controller, the powder concentration measuring means 63 is driven, the measured value of the powder concentration measuring means 63 is appropriately stored in the storage means of the arithmetic processing device 71, According to a processing program stored in advance, the drive amount of the suction means 62 is adjusted based on the measurement value of the powder concentration measurement means 63, and the rotation speed or / and supply air amount of the pulsating air vibration wave generator 21 are adjusted. The lubricant spray chamber 51 can be adjusted as appropriate.
The concentration and the like of the lubricant (powder) inside can be adjusted. The processing unit 71 and the conduit opening / closing unit v1 are connected by a signal line L5 so that the conduit opening / closing unit v1 can be opened or closed by a command signal from the processing unit 71. Has become. The processing unit 71 and the conduit opening / closing means v2 are connected by a signal line L6 so that the conduit opening / closing means v2 can be opened or closed by a command signal from the processing unit 71. Has become. The processing unit 71 and the conduit opening / closing unit v3 are connected by a signal line L7 so that the conduit opening / closing unit v3 can be opened or closed by a command signal from the processing unit 71. Has become.

Further, in the external lubricating tablet press 11, the arithmetic processing unit 71 and the rotary tablet press 41 are connected by a signal line (not shown). , The rotary tablet press 41 can be driven and stopped. The processing unit 71 and the air source 22 are connected by a signal line (not shown), and the driving and stopping of the air source and the adjustment of the air amount are performed by a command signal from the processing unit 71. Is available.

Further, the arithmetic processing unit 71 and the level sensor 36 are connected by a signal line (not shown).
When the level sensor 36 can be driven and stopped, and when the level sensor 36 is in a driving state, a signal detected by the light receiving element 36b constituting the level sensor 36 is output to the arithmetic processing unit. 71.

Further, the arithmetic processing unit 71 and the material cutoff valve 35
Is connected by a signal line (not shown), and the material extraction valve 35 is moved up and down by a command signal from the arithmetic processing unit 71, and the discharge port of the powder storage hopper 32 is 32a can be closed and opened. In this example, as described above, the level sensor 3
6 is in the driving state, the arithmetic processing unit 71
Receives a signal from the light receiving element 36b indicating that the light emitted from the light emitting element 36a has been received, the arithmetic processing unit 71 sends a signal to the material extracting valve 35 to the material extracting valve 35.
Is output in the downward direction. When receiving the signal for moving the material extracting valve 35 downward from the arithmetic processing unit 71, the material extracting valve 35 moves the material extracting valve 35 downward and sets the discharge port 32a of the powder storage hopper 32 to the outlet 32a. It is designed to be open. Also,
When the level sensor 36 is in the driving state, the arithmetic processing unit 71 sends the light-emitting element 36 from the light-receiving element 36b.
When receiving the signal indicating that the light emitted from a is no longer received, the arithmetic processing unit 71 sets the material cutting valve 35
In response to this, a signal for moving the material cutout valve 35 in the upward direction is output. When receiving the signal for moving the material extraction valve 35 upward from the arithmetic processing unit 71, the material extraction valve 35 moves the material extraction valve 35 upward, and sets the discharge port 32a of the powder storage hopper 32 to the outlet 32a. It is designed to be closed.

Next, using an external lubricating tableting machine 11 shown in FIG. 5, an external lubricating tablet (tablet containing no lubricant inside the tablet) is produced. The method will be described.

When the tablet t is manufactured using the external lubricating tableting machine 11, the tablet t is placed in the feed shoe 46.
Is filled with a molding material. When manufacturing external lubricating tablets, the molding material is composed of a medicinal component (main drug or active material) and other additives (excipients, disintegrating agents and stabilizing Agents and auxiliaries).

A lubricant (powder) is stored in a powder storage hopper 32 constituting a powder material spraying device (quantitative feeder device) 31, and a lid 32b is inserted into a material input port of the powder storage hopper 32. Airtightly.

Next, a command signal for driving the level sensor 36 is output from the arithmetic processing unit 71. Then, the light emitting element 36a constituting the level sensor 36 is turned on.

When the lubricant (powder) is not contained in the lower cylindrical portion 34b of the cylindrical body 34, the light emitted from the light emitting element 36a is received by the light receiving element 36b. Therefore, the material cutout valve 35 moves downward to open the discharge port 32a of the powder storage hopper 32, so that the lubricant (powder) stored in the powder storage hopper 32 is removed. , Through the outlet 32a, the lower cylindrical portion 34b
It is discharged inside and is stored and deposited on the elastic film Et.

When the amount (height H) of the lubricant (powder) stored and deposited on the elastic film Et reaches the position (height Hth) where the level sensor 36 is provided, the light emitting element 36
Since the light emitted from a is no longer received by the light receiving element 36b, the material cutout valve 35 moves upward to close the discharge port 32a of the powder storage hopper 32. As a result, a certain amount of the lubricant (powder) is stored and deposited on the elastic film Et in the lower cylindrical portion 34b.

Further, a lubricant (powder) may be provided on the rotation axis (rotation axis ax shown in FIG. 7) of the rotation driving means 25 of the pulsating air vibration wave converter 23 according to the physical properties of the lubricant (powder) used. )
Has a concavo-convex pattern capable of generating positive pressure pulsating air vibration waves that are easily mixed and dispersed (FIG. 7).
Is attached.

[0210] The arithmetic processing unit 71 outputs a drive signal of the rotation drive unit 25 to the rotation drive unit 25 of the pulsating air vibration wave generation device 21. As a result, the rotation drive unit 25 is driven by a preset drive amount. Further, the arithmetic processing unit 71 outputs a drive signal of the air source 22 to the air source 22. Thereby, the air source 22
Is driven by a preset drive amount.

Next, a signal for opening the conduit T5c is sent from the arithmetic processing unit 71 to the conduit opening / closing means v1, and a signal for opening the branch pipe T5a is sent to the conduit opening / closing means v2.
Further, a signal for closing the branch pipe T5b is sent from the arithmetic processing unit 71 to the conduit opening / closing means v3. After that, the arithmetic processing unit 71 outputs a drive signal of the suction unit 62 to the suction unit 62. As a result, the suction means 62 is driven by a preset drive amount.

[0212] From the pulsating air vibration wave generator 21, the conduit T
When a predetermined positive pressure pulsating air vibration wave is supplied to the inside of the pipe 1, the positive pressure pulsating air vibration wave supplied to the conduit T1 is supplied from the pulsating air vibration wave inlet 33a into the dispersion chamber 33. The gas is supplied and forms a swirling flow in the dispersion chamber 33 toward the discharge port 33b.

When a positive pressure pulsating air vibration wave is supplied into the dispersion chamber 33, the elastic film Et vibrates up and down repeatedly due to the positive pressure pulsating air vibration wave (FIGS. 12A and 12A).
(B) and FIG. 12 (c)), the lower cylindrical body portion 3 is formed through the hole (slit hole) h8 of the elastic film Et.
The lubricant (powder) stored and deposited on the elastic film Et in 4b is discharged into the dispersion chamber 33. Further, a drive signal of the rotary tableting machine 41 is output from the arithmetic processing unit 71, and the rotary table 44 and a plurality of upper punches 42.
And a plurality of lower punches 43... Are synchronously rotated at a predetermined rotation speed.

By driving the pulsating air vibration wave generator 21, while the powder material spraying device (quantitative feeder device) 31 is driven, the hole (slit hole) h8 of the elastic film Et is formed. The lubricant (powder) stored / deposited on the elastic film Et is discharged from the apparatus, and the lubricant (powder) stored / deposited on the elastic film Et is discharged.
When the amount (height H) of the deposited lubricant (powder) is less than the position (height Hth) where the level sensor 36 is provided (H <Hth), light emitted from the light emitting element 36a is Since the light is received by the light receiving element 36b, the material extracting valve 35 moves downward, and the lubricant (powder) stored in the powder storage hopper 32 is removed from the elastic film Et in the lower cylindrical body portion 34b. Is discharged, and stored on the elastic membrane Et.
The amount (height H) of the deposited lubricant (powder) becomes the position (height Hth) where the level sensor 36 is provided,
When the light receiving element 36b stops receiving the light emitted from the light emitting element 36a, the material extracting valve 35 moves upward,
The operation of stopping the discharge from the powder storage hopper 32 to the lower cylindrical portion 34b is repeatedly performed. By driving the pulsating air vibration wave generation 21, the powder material spraying device (quantitative feeder device) 31 is driven. During the driving state, the elastic film Et in the lower cylindrical body portion 34b always
Generally, a certain amount of lubricant (powder) is kept in a stored and deposited state.

The lubricant (powder) discharged into the dispersion chamber 33
Is mixed with the positive pressure pulsating air vibration wave orbiting in the dispersion chamber 33, dispersed, fluidized, and discharged together with the positive pressure pulsating air vibration wave from the outlet 33b into the conduit T2. You.

[0216] Note that the aggregated large particles contained in the lubricant (powder) continue to swirl at the lower position in the dispersion chamber 33, so that the aggregated large particles of the lubricant (powder) are supplied to the conduit T2. It is not discharged into the interior.

Further, most of the large-sized agglomerated lubricant (powder) is caught in the pulsating vibration air of positive pressure in the mixing / dispersing chamber 33 and swirls at a lower position in the dispersing chamber 33. During the continuous operation, the particles are dispersed into particles having a predetermined particle size, and then discharged into the conduit T2.
Phenomena such as deposition of large lubricants (powder) hardly occur.

The lubricant (powder) discharged into the conduit T2
Is pneumatically transported by a pulsating air vibration wave of positive pressure,
2 is sprayed into the lubricant spray chamber 51 together with the pulsating vibration air of positive pressure.

The lubricant (powder) supplied to the lubricant spray chamber 51 is stored in the lubricant spray chamber 51, and the upper punch 4
2, each surface of the lower punch 43...
Are sprayed onto the surfaces of the dies 45.

[0220] Of the lubricant (powder) sprayed into the lubricant spray chamber 51, excess lubricant (powder) is sucked out of the lubricant spray chamber 51 through the suction duct T5. Removed.

Thus, at the lubricant spraying point R1, the surfaces of the upper punches 42, the surfaces of the lower punches 43, and the surfaces of the dies 45,. , Lubricant (powder) is uniformly applied.

Next, at the molding material filling point R2, using the feed shoe 48, the molding material is successively introduced into the space formed by the dies 45 and the lower punch 43 inserted into the dies 45 to a predetermined position. , Filling.

The molding material filled in the dies 45 is sent to the preliminary tableting point R3 after the inner volume of the molding material is reduced to a predetermined amount by the slicing plate 47. After the molding material filled in is filled by the upper punch 42 and the lower punch 45 that form a pair, the molding material that has been pre-compressed at the final tableting point R4 is combined with the upper punch 42 that forms the pair. By the lower punch 45, it is compressed in full scale and made into a tablet t. Thereafter, the tablets t manufactured as described above are sequentially sent to the tablet discharge point R5, and are sequentially discharged to the discharge chute 49 by the tablet discharge scraper 48 at the tablet discharge point R5.

The worker observes the tablets t... Discharged to the discharge chute 49.

If the tablets t... Include sticking, capping, and laminating, for example, the driving amount of the compressed air source 22 and the driving amount of the suction means 62 are determined. , As appropriate, or, if the flow control device 24 is provided, adjust the flow control device 24 as appropriate,
When the pressure adjusting valve 30 is provided in the pressure adjusting port 26c, the lubricant (powder) in the lubricant spray chamber 51 is adjusted by appropriately adjusting the pressure adjusting valve 30. Is adjusted so as to increase the density of the tablet t to reduce the frequency of occurrence of tableting troubles such as sticking, capping, and laminating in the manufactured tablets t. Further, the elastic film Et may be replaced with one having a large hole (slit hole) h8.

By using this external lubricating tableting machine 11, external lubricating tablets, which were conventionally difficult to produce on an industrial production basis, can be produced on an industrial production basis.
Can be mass-produced stably.

On the other hand, even if tableting troubles such as sticking, capping and laminating do not occur in the manufactured tablets t.
Is analyzed, and when the amount of the lubricant is larger than the expected amount in the composition of the tablet, for example, the compressed air source 2
2, the drive amount of the suction means 62, etc., may be appropriately adjusted, or, if the flow control device 24 is provided, the flow control device 24 may be appropriately adjusted,
In addition, when the pressure adjusting valve 30 is provided in the pressure adjusting port 26c, the lubricant in the lubricant spray chamber 51 is adjusted by appropriately adjusting the pressure adjusting valve 30. Powder) is adjusted to be constant, and is applied to each surface of the upper punches 42,..., Each surface of the lower punches 43,. By adjusting the amount of lubricant (powder) to be constant,
From each surface of the upper punches 42, each surface of the lower punches 43, and each surface of the dies 45, tablets t.
• Reduce the amount of lubricant (powder) transferred to each surface of. Further, the elastic film Et may be replaced with one having a small hole (slit hole) h8.

In the case of the external lubricating tablets, the lubricant (powder) adhering to each surface of the tablets t.
・ It has an effect on the disintegration property.

That is, an external lubricating tablet is an internal lubricating tablet (in order to prevent tableting troubles such as sticking, capping, laminating, etc., from occurring in a tablet produced during compression molding of a tablet. It has the advantage that the tablet disintegration rate can be increased as compared to a tablet produced using a lubricant (powder) previously mixed and dispersed in a molding material). However, even if it is an external lubricating tablet, if the amount of the lubricating agent (powder) attached to the surface of the tablet is large, the lubricating agent (powder) has water repellency, so that the tablet t ... When the amount of the lubricant (powder) attached to each surface is large, the disintegration rate of the tablets t... Tends to be slow due to the water repellency of the lubricant (powder). In this external lubricating tableting machine 11, a lubricant spray chamber 51
Since the concentration of the lubricant (powder) in the inside can be easily adjusted to a desired concentration, the amount of the lubricant (powder) adhering to the tablet surface is small, and the external lubricant having excellent disintegration properties is provided. Sawa Tablets can be stably mass-produced on an industrial production basis while preventing tableting troubles such as sticking, capping and laminating from occurring in tablets to be produced.

When the above adjustment work is completed, the above-mentioned tablet manufacturing conditions are stored in the storage unit of the arithmetic processing means 71 of the external lubricating tableting machine 11.

In this external lubricating tableting machine 11, when the elastic film Et is attached to the powder material spraying device (quantitative feeder device) 31, the elastic film attaching tool 1 is used. Powder material spray device (quantitative feeder device) 31
The elastic film Et does not become slack even when is operated for a long time.

Thus, if the tablet manufacturing conditions are stored in the storage unit of the arithmetic processing unit 71 of the external lubricating tableting machine 11, the tablet manufacturing conditions stored in the storage unit of the arithmetic processing unit 71 are stored. Accordingly, a desired external lubricating tablet can be stably produced over a long period of time.

In the external lubricating tableting machine 11, the lubricant (powder) passing through the conduit T5 is appropriately monitored by the powder concentration measuring means 63 during the production of the tablet t. Thus, the concentration of the lubricant (powder) in the lubricant spray chamber 51 can be adjusted. In the external lubricant tableting machine 11, as described above, When measuring the influence (noise) of the attached lubricant (powder), a pulsating air vibration wave generator 21, a powder material sprayer (quantitative feeder device) 31, a rotary tableting machine 41, and a suction device Since there is no need to stop the means 62, there is also an effect that tablets can be manufactured with good production efficiency.

In the above embodiment of the present invention, the powder material spraying device (quantitative feeder device) 31 is provided with the elastic film Et.
Although the example in which the elastic film attachment 1 was used when attaching is described, this is merely a preferred example, and the powder material spraying device (quantitative feeder device) using the elastic film Et is used. Is not limited to the powder material spraying device (quantitative feeder device) 31, and various modifications can be considered.

FIG. 15 is a cross-sectional view schematically showing another example of a powder material spraying device (quantitative feeder device) using such an elastic film Et.

The powder material spraying device (quantitative feeder device) 31V1 is the same as the powder material spraying device (quantitative feeder device) 31 shown in FIG. 9 except for the following points. (Quantitative Feeder Device) Among the component devices constituting the 31V1, those corresponding to the component devices constituting the powder material spraying device (quantitative feeder device) 31 are denoted by the corresponding reference numerals, and the description thereof is omitted. I do.

The powder material spraying device (quantitative feeder device) 31V1 is provided with an outlet 32a of the powder storage hopper 32.
Elastic membrane attachment 1 directly attached with elastic membrane Et
And the pedestal 2 of the elastic membrane attachment 1 is directly connected to a position in the middle of the conduit T.
A pulsating air vibration wave generator 21 is connected to one end of the conduit T, and a positive pressure pulsating air vibration wave generated by the pulsating air vibration wave generator 21 from one end Ta of the conduit T. Is supplied into the conduit T, and the elastic film Et attached to the elastic film attachment 1 vibrates up and down by the pulsating air vibration wave of the positive pressure.
The gas is directly discharged into the conduit T through the hole (slit hole) h8 of the elastic film Et. Further, the lubricant (powder) discharged into the conduit T through the hole (slit hole) h8 of the elastic film Et mixes with the positive pressure pulsating vibration air supplied into the conduit T. Disperse, fluidize and pulsate air oscillating waves of positive pressure cause the other end T of the conduit T
b, and the lubricant (powder) is sprayed from the other end Tb of the conduit T together with the pulsating vibration air of positive pressure.

In this powder material spraying device (quantitative feeder device) 31V1, the pressing member 4
Is directly attached to the discharge port 32a of the powder storage hopper 32, but a cylindrical body 34 is connected to the discharge port 32a of the powder storage hopper 32, and the elastic film is attached to the cylindrical body 34. The holding member 4 of the fixture 1 is attached, and the cylindrical body 34 is formed similarly to the powder material spraying device (quantitative feeder device) 31.
A material cutout valve 35 is provided in the upper cylindrical portion 34a of the cylindrical member 34, and the light emitting element 36a And the light receiving element 36b are opposed to each other, and the amount of the lubricant (powder) stored / deposited on the elastic film Et is determined in the same manner as the powder material spraying device (quantitative feeder device) 31 by spraying the powder material. Device (quantitative feeder device) 3
During operation of 1V1, it may be possible to always maintain a substantially constant amount.

FIG. 16 is a diagram schematically showing another example of a powder material spraying device (quantitative feeder device) using the elastic film Et. FIG. 16 (a) is a longitudinal sectional view thereof. To
FIG. 16 (b) shows a cross-sectional view of each of them.

The powder material spraying device (quantitative feeder device) 31V2 is the same as the powder material spraying device (quantitative feeder device) 31 shown in FIG. 9 except for the following points. (Quantitative feeder device) Among the component devices constituting 31V2, those corresponding to the component devices constituting the powder material spraying device (quantitative feeder device) 31 are denoted by the corresponding reference numerals, and the description thereof is omitted. I do.

The powder material spraying device (quantitative feeder device) 31V2 is connected to the discharge port 32a of the powder storage hopper 32.
Elastic membrane attachment 1 directly attached with elastic membrane Et
And a dispersion chamber 33V1 is hermetically attached below the pedestal 2 of the elastic membrane attachment 1.

In the dispersion chamber 33V1, a pulsating air introduction pipe T6
Is attached.

In the dispersion chamber 33V1, a pneumatic transport pipe T7 provided in a substantially L-shape is provided so as to protrude into the dispersion chamber 33V1, and as shown in the drawing, an outlet of the pneumatic transport pipe T7 is provided. T7a is not aligned with the direction of the pulsating air introduction port T6a of the pulsating air introduction pipe T6. More specifically, in this example, the outlet T7a of the pneumatic transport tube T7 is directed downward.

In the powder material spraying device (quantitative feeder device) 31V2, one end T6b of the pulsating air introduction pipe T6 is used.
Is connected to a pulsating air vibration wave generator 21. The pulsating air vibration wave of positive pressure generated by the pulsating air vibration wave generator 21 is connected through a pulsating air introduction pipe T6. When supplied into the dispersion chamber 33V1 from one end T6b, the elastic film Et attached to the elastic film attachment 1 vibrates up and down due to the positive pressure pulsating air vibration wave supplied into the dispersion chamber 33V1, The lubricant (powder) is discharged into the dispersion chamber 33V1 through the hole (slit hole) h8 of the elastic film Et. Dispersion room 33V
The lubricant (powder) discharged into 1 is mixed with the positive pressure pulsating air vibration wave supplied into the dispersion chamber 33V1,
The fluid is dispersed, fluidized, and pneumatically transported to the other end T7b of the conduit T7 by the pulsating vibration air of the positive pressure, and the lubricant (powder) is pulsated by the pulsating vibration of the positive pressure from the other end T7b of the conduit T7. They are sprayed with the waves.

The powder material spraying device (quantitative feeder device) 31V2 has an outlet T7a of a pneumatic transport tube T7.
Is not aligned with the direction of the pulsating air inlet T6a of the pulsating air inlet T6, that is, the outlet T of the pneumatic transport tube T7.
7a is provided so as to face downward, the dispersion chamber 33
Among the lubricants (powder) discharged into V1, large ones are deposited in the dispersion chamber 33V1, so that the large-sized lubricant (powder) is sprayed from the other end T7b of the conduit T7. There is an advantage that there is no.

In this powder material spraying device (quantitative feeder device) 31V2 as well, the cylindrical body 34 is connected to the discharge port 32a of the powder storing hopper 32, and the elastic film mounting fixture 1 is connected to the cylindrical body 34. The holding member 4 is attached, and the cylindrical body 34 is formed similarly to the powder material spraying device (quantitative feeder device) 31.
A material cutout valve 35 is provided in the upper cylindrical portion 34a of the cylindrical member 34, and the light emitting element 36a And the light receiving element 36b are opposed to each other, and the amount of the lubricant (powder) stored / deposited on the elastic film Et is determined in the same manner as the powder material spraying device (quantitative feeder device) 31 by spraying the powder material. Device (quantitative feeder device) 3
During operation of 1V1, it may be possible to always maintain a substantially constant amount.

In the above example, the elastic film Et includes:
Although the description has been made centering on the one provided with one hole (slit hole) h8, the elastic film Et is provided with a hole (slit hole).
h8 is not limited to one provided, and for example, an elastic film EtA having a plurality of through holes h9... as shown in FIG. 17 may be used.

Further, in the above embodiment of the present invention,
As a pulsating air vibration wave converting device 23 constituting the pulsating air vibration wave generating device 21, by rotating a rotating cam 29, a valve body 28 is moved up and down in accordance with an uneven pattern provided on the rotating cam 29, The pulsating air vibration wave having a desired positive pressure is supplied into the conduit T1 by opening and closing the valve seat 27 by the body 28. This is because the pulsating air vibration wave having a desired positive pressure is provided. , Exactly,
This is merely a preferred example in which supply can be performed in the conduit T1, and examples of the pulsating air vibration wave converting device include a rotary type pulsating air vibration wave converting device 61 illustrated in FIG. A rotary pulsating air vibration wave converter 71 as shown in FIG. 19 may be used.

Pulsating air vibration wave generator 21 shown in FIG.
A has the same configuration as that of the pulsating air vibration wave generator 21 shown in FIG. 7 except that the configuration of the pulsating air vibration wave converter is different. And description thereof is omitted.

The pulsating air vibration wave converting device 61 of the pulsating air vibration wave generating device 21A has a cylindrical body 62 and a hollow cylindrical body 63 inside the cylindrical body 62, which are substantially divided into two.
A rotary valve 63 attached to the rotary shaft 62a with the central axis of the rotary shaft 2 serving as the rotary shaft 62a. Rotating shaft 62a
Is rotated at a predetermined rotation speed by a rotation driving means (not shown) such as an electric motor.

A conduit T4 and a conduit T1 are connected to the outer peripheral wall of the cylindrical body 62 at a predetermined distance.

Using the pulsating air vibration wave generator 21A,
When supplying a desired positive pressure pulsating air vibration wave into the conduit T1, the compressed air source 22 is driven to supply a predetermined compressed air into the conduit T3. When the flow control device 24 is provided, the flow rate of the compressed air supplied into the conduit T4 is adjusted by appropriately adjusting the flow control device 24.

The rotary shaft 62a is rotated at a predetermined rotation speed by a rotation driving means (not shown) such as an electric motor, so that the rotary valve 63 attached to the rotation shaft 62a is rotated at a predetermined rotation speed. Rotate.

Then, for example, when the rotary valve 63 is at the position shown by the solid line, the conduit T4 and the conduit T1 are in a conducting state, and the compressed air generated from the compressed air source 22 is It is supplied from conduit T4 to conduit T1.

Further, for example, when the rotary valve 63 is at the position shown by the imaginary line, the conduit T4 and the conduit T1 are shut off by the rotary valve 63.

At this time, the rotary valve 63 in the cylindrical body 62
Compressed air is supplied from a conduit T4 to one of the spaces S1 partitioned by, and air is compressed in this space S1.

On the other hand, in one space S2 of the cylindrical body 62 partitioned by the rotary valve 63, the compressed air stored in the space S2 is supplied into the conduit T1.

By repeating such an operation by rotating the rotary valve 63, a pulsating vibration air of positive pressure is sent into the conduit T1.

FIG. 19 shows a pulsating air vibration wave generator 21B.
FIG. 1 is an exploded perspective view schematically showing a rotary-type pulsating air vibration wave conversion device 71 as a main part thereof.

The pulsating air vibration wave converting device 71 of the pulsating air vibration wave generating device 21B includes a cylindrical tube 72 and a rotary valve 73 rotatably provided in the tube 72.

The tubular body 72 has a structure in which one end 72a is open and the other end is closed by a lid 72b. The side peripheral surface has an intake port 72e1 and a wave transmitting port 72e.
2 is provided.

A conduit T4 connected to the compressed air source 22 is connected to the intake port 72e1, and a conduit T1 connected to the powder material spraying device 31, 31V1, 31V2, etc. is connected to the transmission port 72e2. You.

In FIG. 19, a portion indicated by reference numeral 72c indicates a rotary bearing hole for pivotally mounting the rotary valve body 73.

The rotary valve element 73 has a cylindrical shape having a hollow h10, and has an opening h11 on its side peripheral surface S73.
Is provided. The rotary valve body 73 has one end 73.
a is open and the other end is closed by a lid 73b.

In the rotary valve body 73, a rotary shaft 74 is provided to extend around the central axis of rotation. A rotation driving means (not shown) such as an electric motor is connected to the rotation shaft 74, and when the rotation driving means (not shown) is driven, the rotation valve 73 rotates around the rotation shaft 74. To rotate.

The outer diameter of the side peripheral surface S73 of the rotary valve body 73 substantially coincides with the inner diameter of the cylindrical body 72.
When housed in the tubular body 72 and rotating the rotary valve body 73,
The side peripheral surface S73 of the rotary valve body 73 slides along the inner peripheral surface of the tubular body 72.

In FIG. 19, a portion denoted by reference numeral 73c is a rotary bearing hole 72 provided in a lid 72b of the cylindrical body 72.
The rotation shaft accommodated rotatably is shown in c.

The rotary valve body 73 is rotatably provided in the cylindrical body 72 with the rotary shaft 73c attached to the rotary bearing hole 72c.

By using the pulsating air vibration wave generator 21B,
When a desired positive pressure pulsating air vibration wave is supplied into the conduit T1, a compressed air source (not shown) is driven to drive the conduit T1.
4 supply compressed air.

The rotary valve 74 is rotated at a predetermined rotation speed by rotating the rotation shaft 74 at a predetermined rotation speed by a rotation driving means (not shown) such as an electric motor.

Then, for example, the opening h of the rotary valve body 73
11 is at the position of the transmission port 72e2, the conduit T4
And the conduit T1 are brought into conduction, and at this time, compressed air is sent out to the conduit T1.

For example, the side peripheral surface S7 of the rotary valve body 73
When 3 is at the position of the transmission port 72e2, the space between the conduit T4 and the conduit T1 is blocked by the side peripheral surface S73.
At this time, the compressed air is not sent out to the conduit T1.

By repeating such an operation by rotating the rotary valve body 73, a pulsating air vibration wave of positive pressure is sent into the conduit T1.

In the powder material spraying devices (quantitative feeder devices) 31, 31V1 and 31V2 described above, the pulsating air vibration wave generating device shown in FIG. 7 and the pulsating air vibration wave generating device 21 shown in FIGS. Any of the pulsating air vibration wave generators 21A and 21B shown in each of FIGS. However, since the pulsating air vibration wave of positive pressure has the property of attenuating, when this damping property is taken into consideration, the pulsating air vibration wave generator generates a sharp and clear positive pressure pulsation from the pulsating air vibration wave generator. It is preferable to generate an air vibration wave. In order to generate such a sharp and positive pressure pulsating air vibration wave that is clearly turned on and off, a rotary type pulsating air vibration wave conversion device 61 as illustrated in FIGS. It is preferable to use a rotary cam type pulsating air vibration wave converter 23 as shown in FIG.

In the above-described powder material spraying apparatus (quantitative feeder apparatus) 31, 31V1, 31V2, the case where the lubricant (powder) is stored in the powder storing hopper 3 has been described as an example. The powder material spraying devices (quantitative feeder devices) 31, 31V1, and 31V2 are not limited to lubricant spraying devices for lubricant spraying, but can be used as quantitative powdery feeding devices for various powders.

For example, a powder material spraying device (quantitative feeder device) 31, 31V1, 31V2 is attached to a position near a mold of an injection molding machine, and a release agent (powder) is stored in a powder storage hopper 3. And the nozzle touch process of the injection molding machine,
An injection step of injecting the molten resin into the closed mold, a cooling step of cooling the molten resin injected into the mold, and
Open the mold, take out the resin molded product molded in the mold, in the injection molding cycle of the removal process, in order to prevent the resin molded product from adhering to the mold surface of the mold, in the removal process, Immediately after the mold is opened and the molded resin molded product is taken out in the mold, the powder material spraying device is inserted into the mold clamping area between the movable mold and the fixed mold by robot means or the like. (Quantitative feeder device) 31, 31
V1 and 31V2 are brought close to each other to spray a release agent (powder) on each of the movable mold surface and the fixed mold surface, and then a mold clamping area between the movable mold and the fixed mold From inside, the spray port was retracted outside the mold clamping area,
It can be suitably used as a release agent spraying device for an injection mold.

Further, if various powders such as food, resin, and chemical substance are stored in the powder storage hopper 3 of the powder material spraying device (quantitative feeder device) 31, 31V1, 31V2,
Powder material spraying device (quantitative feeder device) 31, 31V
1,31V2 can be used as such a powder quantitative feeder device.

In the powder material spraying devices (quantitative feeder devices) 31, 31V1, and 31V2, the case where the elastic film Et is vibrated by the pulsating vibration air of positive pressure has been described. Such an elastic film attachment can be suitably used as an attachment for a nozzle plate (elastic film) of a piezoelectric vibration nozzle such as a print head of an ink jet printer. FIG. 20 is a cross-sectional view schematically showing a piezoelectric vibration nozzle using the elastic film attachment according to the present invention.

The piezoelectric vibration nozzle 81 includes a metal main body 85, a chamber 86 formed in the main body 85 for containing a liquid such as ink, a nozzle plate (elastic film) Etb, and a nozzle plate (elastic film) Etb. A piezoelectric transducer (piezoelectric element) provided on the outer surface of the elastic film Etb
transducer) 82.

The size of a chamber 86 formed in the main body 85 for accommodating a liquid such as ink will be described for reference. The diameter is 5 mm (mm) to 15 mm.
It is on the order of millimeters (mm) and its depth is on the order of 1 to 5 millimeters (mm).

The nozzle plate (elastic film) Etb is made of a thin metal film and has a thickness of about 30 μm (μm) to 100 μm (μm). The elastic membrane attachment 1 is attached so as to cover the chamber (chamber) 86.

Further, the nozzle plate (elastic film) Etb
Has a protruding portion c that is curved outward in the center thereof, and the protruding portion c is provided with a plurality of through holes h12. Explaining for reference, the diameter of each of the plurality of through holes h10 ranges from 30 micrometers (μm) to 100 micrometers.
It is on the order of micrometers (μm).

[0283] On the surface of the nozzle plate (elastic film) Etb, a piezoelec-tric transducer 8 is provided.
2 are adhered.

A piezoelectric transducer (piezoelectric transduce)
r) 82 has a ring shape. For reference, the outer diameter of the piezoelectric element 82 is about 5 millimeters (mm) to 15 millimeters (mm), and the inner diameter thereof is 2 millimeters (mm) to 8 millimeters (mm). mm). The thickness of the piezoelectric transducer 82 is about 0.5 to 2 millimeters (mm).

[0285] Piezoelectric transduce element
r) Each of the front and back surfaces of 82 has a film-like electrode 93,
94 is attached.

A liquid supply pipe 89 for supplying a liquid such as ink to the chamber 86 is provided in the chamber 86.
Is connected.

[0287] Further, a conduit 81 connected to an air chamber (not shown) is connected to the chamber (chamber) 86. In FIG. 19, members indicated by 88a and 88b indicate electric wires connected to the electrodes 83 and 84, respectively.

When spraying a liquid such as ink using the piezoelectric vibration nozzle 81, a liquid such as ink is supplied to a chamber 86 through a liquid supply pipe 89, and the electrodes 83 and 84 are energized. . Then, the piezoelectric conversion element (piezoe
electric transducer) 82 vibrates, and by this vibration,
The nozzle plate (elastic film) Etb vibrates, and a plurality of through holes h formed in a protrusion c provided at the center thereof.
From 10, a liquid such as ink is sprayed.

Also in this piezoelectric vibration nozzle 81, since the nozzle plate (elastic film) Etb is attached to the main body 85 by using the elastic film attaching device 1, the nozzle plate (elastic film) Etb may be loosened. The nozzle plate (elastic film) Etb vibrates constantly without disturbance when the electrodes 93 and 94 are energized, so that the liquid such as ink is stable from the plurality of through holes h10. It is sprayed in the state where it was done.

It should be noted that the elastic film attachment 1 is a pedestal 2, a constituent member thereof depending on the size of the elastic film (diaphragm).
The sizes of the push-up member 3 and the pressing member 4 also differ.

Pedestal 2, push-up member 3, and holding member 4
If the size of the part and the size of the processed portion (V-groove Dv, protrusion Cv, etc.) are, for example, on the order of millimeters or more (0.01 mm or more), the pedestal 2, the push-up member 3, The pressing member 4 can be easily and accurately manufactured.

On the other hand, when the elastic film (diaphragm) is small as in the above-described piezoelectric vibration nozzle 81, it is necessary to reduce the sizes of the pedestal 2, the push-up member 3 and the pressing member 4, and Part (V-groove Dv, protrusion Cv, etc.)
In micrometer (μm) order (submicron unit)
In such a case, for example, the LIGA method (lithography used in the field of manufacturing semiconductor devices, lithography used in the field of manufacturing a semiconductor device, etc.) A method of manufacturing a fine mechanical part by depositing a metal or the like by using a resist pattern formed on a resist as a template, electroforming, using the resist pattern as a template, and the like, and the like. The member 4 may be manufactured.

Since the elastic film attachment 1 according to the present invention can be stretched without loosening the elastic film (diaphragm), the diaphragm and the elastic member of the device using various diaphragms and elastic films can be used. It can be suitably used as an attachment for the membrane.

As described in detail above, claim 1 is as follows.
In the elastic film mounting device described in the above, when the elastic film is placed on the push-up member placed on the pedestal and the holding member is tightened against the pedestal, the elastic film is pushed up by the push-up member. It is pushed up in the direction of the holding member. As a result, the elastic film is pushed up in the pressing member direction,
The elastic film is stretched from the inside to the outer peripheral side. And
The portion extended from the inside of the elastic film to the outer peripheral side fits between the V-groove provided on the surface of the pedestal and the V-shaped projection provided on the surface of the holding member facing the pedestal. Inserted.

Further, when the pressing member is tightened against the pedestal, the elastic film is pushed up in the direction of the pressing member by the pushing member, and the outer peripheral surface of the pushing member and the inside of the hollow of the pressing member are kept. It is sandwiched between the peripheral surface. In addition, by being pushed up in the pressing member direction by the pushing-up member, a portion extended from the inside of the elastic body film to the outer peripheral side has a V-groove provided on the surface of the pedestal and a surface of the holding member facing the pedestal. Between the V-shaped projections provided on the front side.

[0295] As described above, in this elastic membrane attachment, the elastic membrane is placed on the push-up member placed on the pedestal.
With a simple operation of tightening the pressing member against the pedestal, the elastic film can be brought into a taut state.

[0296] In the elastic film mounting device according to the second aspect, the inclined surface extending from the upper side to the lower side when viewed in cross section is provided on the outer periphery of the push-up member. A portion extending from the inside of the body membrane to the outer peripheral side has a V-shaped groove provided on the surface of the pedestal in a ring shape, and a V-shape provided on the surface of the holding member facing the pedestal in a ring shape. Between the projections.

As described above, according to the elastic film mounting device, the elastic film is placed on the push-up member placed on the pedestal, and the pressing member is tightened to the pedestal. The elastic film can be in a taut state.

When the pressing member is tightened against the pedestal, the interval between the outer peripheral inclined surface of the push-up member and the hollow inner peripheral surface of the pressing member gradually becomes smaller. Between the hollow inner peripheral surface of the holding member,
Since the holding member is firmly held, the elastic film does not loosen after the holding member is fastened to the base.

Thus, for example, when an elastic film of a device using a diaphragm or a powder material spraying device is stretched, the elastic film can be stretched by using the elastic film attaching tool. Since the elastic film does not loosen, accurate operation of these devices can be maintained for a long time.

[0300] In the powder material spraying apparatus according to the third aspect,
Since a positive pressure pulsating air vibration wave is supplied into the conduit from one end of the conduit, the elastic film provided at the outlet of the powder storage hopper connected in the middle of the conduit has a positive pressure. Vibrates up and down in synchronization with the pulsating air vibration wave of
The powder material contained in the powder storage hopper is discharged into the conduit from the through hole provided in the elastic film.

By the way, in this powder material spraying apparatus, the elastic film attachment according to claim 1 or 2 is used.
The elastic membrane is attached to the outlet of the powder storage hopper.

[0302] This allows the elastic membrane to be attached to the discharge port of the powder storage hopper without slackening, so that the elastic membrane is converted into a positive pressure pulsating air vibration wave supplied into the conduit. It will vibrate dependently. Accordingly, as long as the positive pressure pulsating air vibration wave supplied into the conduit is constant, the vibration of the elastic film becomes unique. As a result, in this powder material spraying device, as long as the positive pressure pulsating air vibration wave supplied from one end of the conduit into the conduit is kept constant, the powder material discharged from the through-hole of the elastic film is formed. Emissions are also constant.

Further, the powder material discharged into the conduit mixes with the positive pressure pulsating air vibration wave supplied into the conduit,
In a dispersed state, the powder material is pneumatically transported to the other end of the conduit.In this powder material spraying device, the powder material discharged into the conduit from the through hole provided in the elastic membrane is subjected to positive pressure. As a result of the pneumatic transportation of the powder material to the other end of the conduit by the pulsating air vibration wave, as a medium for pneumatically transporting the powder material, a conduit as seen when a constant pressure flow of air is supplied into the conduit. There is no accumulation of powder material and no blow-through of powder material.

As a result, almost all of the powder material discharged into the conduit from the through hole of the elastic film is pneumatically transported to the other end of the conduit, and as a result, the powder material sprayed from the other end of the conduit is removed. The spray amount also becomes constant.

That is, this powder material spray device is suitable as a fixed-quantity feeder device.

[0306] In the powder material spraying apparatus according to the fourth aspect,
A positive pressure pulsating air vibration wave is introduced into the dispersion chamber from a position below the dispersion chamber substantially from the tangential direction, and a positive pressure pulsating air vibration wave is generated substantially from the position above the dispersion chamber in the tangential direction. Because it discharges, the pulsating air vibration wave of positive pressure
In the dispersing chamber, it spirals from a position below the dispersing chamber to a position above the dispersing chamber.

In the dispersion chamber, a positive pressure pulsating air vibration wave swirling from a position below the dispersion chamber to a position above the dispersion chamber causes the dispersion chamber to have the same shape as a cyclone. Has a sizing function.

Thus, even if a large-sized powder material is discharged from the through-hole of the elastic film into the dispersion chamber, such a large-size powder material keeps rotating at a position below the dispersion chamber. Large powder material is not sprayed from the other end of the conduit.

Therefore, by using this powder material spraying device, a certain amount of powder material having a uniform particle diameter can be sprayed from the other end of the conduit.

Further, the large-sized powder material is crushed into small-sized powder material by being entrained in the swirling flow of the pulsating vibration air of positive pressure in the dispersion chamber. The powder material thus crushed to a predetermined particle size is discharged out of the dispersion chamber on the swirling flow of the pulsating vibration air of positive pressure, so that the large particle Powder material is difficult to deposit.

[0311] In the powder material spraying apparatus according to claim 5, the powder material is a lubricant or a release agent.

[0312] This powder material spraying device can spray a fixed amount of lubricant or release agent from the other end of the conduit. It is suitable as a device for applying a lubricant to a mold, or a device for applying a release agent on a mold surface of a mold.

[Brief description of the drawings]

FIG. 1 is a perspective view schematically showing a state in which an elastic film is attached to an elastic film attachment according to the present invention.

FIG. 2 is an exploded perspective view schematically showing a configuration of an elastic membrane attachment shown in FIG.

FIG. 3 is a cross-sectional view schematically showing a configuration of the elastic film attachment shown in FIG.

FIG. 4 is a plan view schematically showing an elastic film.

FIG. 5 is an overall configuration diagram schematically showing an external lubricating tableting machine using the elastic membrane attachment according to the present invention.

FIG. 6 is a plan view schematically showing a rotary tableting machine of an external lubricating tableting machine using the elastic membrane attachment according to the present invention.

FIG. 7 shows a configuration of the pulsating air vibration wave generator 21 of the external lubricating tablet press shown in FIG.
FIG. 3 is a cross-sectional view schematically illustrating the configuration.

8 (a) and 8 (b) are explanatory diagrams exemplarily showing a pulsating air vibration wave of a positive pressure supplied into a conduit.
Exemplarily shows a pulsating air oscillating wave of positive pressure supplied into a conduit.

FIG. 9 is an enlarged cross-sectional view schematically showing a portion surrounded by a chain line IX in FIG. 5;

FIG. 10 is a plan view schematically showing a position of a pulsating air vibration wave introduction port provided in the dispersion chamber when the dispersion chamber is viewed in a plan view, and FIG. 10A is a pulsating air vibration wave introduction port with respect to the dispersion chamber. FIG. 10 (b) is an explanatory diagram illustrating a substantially attachable position of the pulsating air vibration wave introduction port with respect to the dispersion chamber.

11 is a diagram schematically illustrating the positions of a pulsating air vibration wave introduction port and a discharge port provided in the dispersion chamber when the dispersion chamber is viewed in a plan view. FIG. 11A illustrates pulsation with respect to the dispersion chamber. It is explanatory drawing explaining the preferable attachment position of an air vibration wave introduction port and a discharge port, FIG.11 (b) is a figure with respect to a dispersion chamber.
It is explanatory drawing explaining the substantially attachable position of a pulsating air vibration wave introduction port and a discharge port.

FIG. 12 is an explanatory diagram schematically illustrating a phenomenon that occurs in an elastic film when a positive pressure pulsating air vibration wave is sent into a dispersion chamber.

FIG. 13 is a cross-sectional view schematically showing the configuration of the lubricant spray device according to the line XIII-XIII in FIG.

14 is a configuration diagram schematically showing an enlarged view of a portion of the lubricant suction device shown in FIG. 5; FIG.

FIG. 15 is a cross-sectional view schematically showing another example of a powder material spraying device (quantitative feeder device) using an elastic film.

FIG. 16 is a diagram schematically showing another example of a powder material spraying device (quantitative feeder device) using an elastic film, and FIG.
6 (a) is a longitudinal sectional view, and FIG. 16 (b) is
The cross-sectional views are each shown.

FIG. 17 is a schematic plan view illustrating another example of the elastic film.

FIG. 18 is an explanatory view schematically illustrating another example of the pulsating air vibration wave generator.

FIG. 19 is an explanatory view schematically illustrating another example of the pulsating air vibration wave generator.

FIG. 20 is a cross-sectional view schematically showing a piezoelectric vibration nozzle using the elastic film attachment according to the present invention.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 elastic film attachment 2 pedestal 3 push-up member 4 pressing member 31, 31V1, 31V2 powder material spray device (quantitative feeder device) 32 powder storage hopper 32a powder storage hopper outlet 33 dispersion chamber h1 hollow of base h2 Hollow of push-up member h3 Hollow of press member h8 Hole (slit hole) of elastic film Cv Projection Dv V-groove Et Elastic film P3 Slope of push-up member T, T1, T2 Conduit

Continuing from the front page (72) Inventor Kiyoshi Morimoto 1188 Shimotsukari, Nagaizumi-cho, Sunto-gun, Shizuoka Pref.

Claims (5)

[Claims] 1. A pedestal having a hollow, a push-up member provided so as to stand on the surface of the pedestal and having a hollow, and a holding member having a hollow slightly larger than the outer periphery of the push-up member, On the surface of the pedestal, at a position outside the hollow formed in the pedestal and outside the outer periphery of the push-up member, a V-groove provided so as to surround the hollow formed in the pedestal in a ring shape is formed. A ring-shaped, V-shaped projection is provided on the surface of the pressing member facing the pedestal so as to fit into a V-groove provided on the surface of the pedestal. A push-up member is placed on the surface of the pedestal, an elastic film is placed on the push-up member, and the pressing member is attached to the pedestal so as to cover both the push-up member and the elastic film. Tighten By attaching, the elastic film is pushed up in the direction of the holding member by the push-up member, so that the elastic film is stretched from the inner side to the outer peripheral side, and the outer periphery of the elastic film stretched by the push-up member is provided. A portion is sandwiched between the outer periphery of the push-up member and a surface of the holding member that forms the hollow, and a V-groove provided on the surface of the pedestal, and a surface of the holding member facing the pedestal. An elastic-membrane mounting device that is further stretched and held between the V-shaped projections. 2. The elastic membrane attachment according to claim 1, wherein the push-up member is provided on its outer periphery with an inclined surface extending from the upper side to the lower side when viewed in cross section. 3. The powder storage hopper according to claim 1, further comprising: a conduit having one end and the other end; and a powder storage hopper connected in the middle of the conduit, wherein an outlet of the powder storage hopper is provided. Attaching an elastic membrane having a through hole as an elastic membrane to be attached to the elastic membrane attaching tool; supplying a positive pressure pulsating air vibration wave from one end of the conduit; By vibrating the elastic membrane having a through hole, the powder material contained in the powder storage hopper is discharged into the conduit, and the powder material discharged into the conduit in the conduit. Is mixed and dispersed with the positive pressure pulsating air vibration wave supplied in the conduit, and the powder material dispersed and mixed with the positive pressure pulsating air vibration wave from the other end of the conduit. A powder material spraying device for spraying. 4. A dispersing chamber is provided below the elastic membrane fitting, and the conduit is provided in the middle of the dispersing chamber so as to pass through the dispersing chamber. Positive pressure pulsation supplied from one end of the conduit is provided. Air oscillating waves are introduced into the dispersion chamber at a location below the dispersion chamber, generally tangentially, and at a location above the dispersion chamber, from the dispersion chamber, generally tangentially. 4. The powder material spraying device according to claim 3, wherein the powder material is discharged to the other end. 5. The powder material spraying device according to claim 3, wherein the powder material is a lubricant or a release agent used during compression molding.