JP2673637B2 - Method for producing solid powder cosmetics - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a solid powder cosmetic, which is produced by filling a saucer with a powder cosmetic such as foundation and solidifying it.

[0002]

2. Description of the Related Art A conventional method for producing a solid powder cosmetic will be described with reference to FIGS.

First, FIG. 11 shows a state in which a saucer is placed in a female die as a preparation step. In the figure, 1 is a female die, and the female die 1 has a flat upper surface 1A made of a metal material and has a thick wall. Is formed in a cylindrical shape, and a female hole 2 for filling the powder cosmetic P and inserting a male mold 6 described later is bored in the center of the female mold 1 in the upward and downward directions. Here, the female hole 2 is a stepped hole in which the upper side is a male mold insertion portion 2A into which the male mold 6 is inserted and the lower side is a large-diameter saucer accommodating portion 2B. Has been formed.

Reference numeral 3 denotes a saucer housed inside the female mold 1, and the saucer 3 is composed of an annular edge portion 3A and a bottom portion 3B. The saucer 3 is a saucer housing portion 2B of the female mold 1. The edge portion 3A is arranged in a state in which the edge portion 3A is fitted without a gap.

Then, the female mold 1 is housed in a holding frame usually called a "hama" with the tray 3 arranged inside, and is transferred to a filling machine (neither is shown) by a conveyor means such as a belt conveyor. Sent.

Next, FIGS. 12 and 13 show a filling step for filling powder cosmetics.

First, in FIG. 12, reference numeral 4 denotes a filling cylinder for accommodating the powdered cosmetic P to be filled from the filling machine.
Is placed on the upper surface 1A of the female mold 1 so that its lower end covers the female hole 2 of the female mold 1, and the powdered cosmetic material P overflows from the female hole 2 of the female mold 1 inside the filling cylinder 4. Fill so that it goes all the way in.

Further, in FIG. 13, reference numeral 5 denotes a scraping plate, which slides in contact with the upper surface 1A of the female die 1 and relatively moves in parallel with the female die 1, thereby The excess powder cosmetic P covering the upper surface 1A of the mold 1 is removed, the powder cosmetic P is quantitatively filled in the female hole 2 of the female mold 1 by a predetermined amount, and the powder cosmetic in the female hole 2 is also filled. The upper surface of P is flattened to form a scraped surface P1, and the filling process is completed.

Further, FIGS. 14 and 15 show a pressing step for solidifying the powder cosmetics.

In FIG. 14, reference numeral 6 is a male die, and the male die 6 is formed to have an outer dimension slightly smaller than the male die insertion portion 2A of the female hole 2 of the female die 1, A predetermined clearance (gap) C is formed in the radial direction between the mold 6 and the male mold insertion portion 2A of the female mold 1 and is included in the powder cosmetic P when the male mold 6 is pressed. It is designed to make it easier for the air to escape.

A pressing machine 7 moves the male die 6 upward and downward. The pressing machine 7 uses an air cylinder composed of a tube 7A and a piston rod 7B. The male die 6 is a piston rod. It is attached to the lower end of 7B.

Then, in the pressing step, the female die 1 is transferred below the press machine 7, and the piston rod 7B of the press machine 7 is extended downward with the punching paper 8 interposed therebetween.
The male mold 6 is pushed into the female hole 2 of the female mold 1, and the powdered cosmetic material P is pressed by the male mold 6 (see FIG. 14). Here, as the male die 6 is pressed, the particles of the powder cosmetic P are aggregated and solidified. At this time, the powder cosmetic P is solidified.
The air existing between the particles of the female mold 1 is filled with the female hole 2 of the female mold 1 and the male mold 6
The solid powder cosmetic 9 is formed in the tray 3 as shown in FIG.

Thus, when the pressing process is completed, the stamping paper 8 is removed, and the tray 3 is removed from the female die 1, as shown in FIG.
As shown in FIG. 3, the solid powder cosmetic 9 is molded inside the saucer 3.

[0014]

In the prior art described above, when the powder cosmetic P is compressed between the saucer 3 and the male mold 6 in the pressing step, the powder cosmetic P is contained between the particles of the powder cosmetic P. The air that had been trapped could not escape completely, as shown in FIG.
The air that has not escaped may be contained in the solid powder cosmetic material 9 to form the nest 9A. And this nest 9
When A is present near the surface of the solid powder cosmetic 9, there is a problem in that the surface of the solid powder cosmetic 9 has irregularities or cracks, or a difference in shade of color appears, impairing the appearance of the product.

In order to solve this problem, in the prior art, the external dimensions of the male die 6 are formed to be slightly smaller than the female hole 2 of the female die 1 and the edge 3A of the tray 3 so that the male die 6 and the female die 6 are Although the clearance C in the radial direction is formed between the molds 1 so that the air contained between the particles of the powder cosmetic P in the pressing step is allowed to escape from this clearance C, the saucer 3
From the powder cosmetics P on the central portion and the bottom portion 3B side, the air cannot be completely exhausted through the clearance C, and the air is trapped in the solid powder cosmetics 9 to easily form the nest 9A.
Further, since the powder cosmetic P is extruded outward in the radial direction with the clearance C interposed, burrs 9B are formed on the solid powder cosmetic 9 on the inner peripheral side of the edge 3A of the tray 3, which causes a problem of impairing the appearance. .

On the other hand, a method of reducing the speed of pushing the male die 6 into the female hole 2 of the female die 1 so that air can easily escape from between the particles of the powder cosmetic P in the pressing step has been tried. However, even in this case, the central portion and the bottom portion 3B of the saucer 3
In the solid powder cosmetic material 9 near to, there is a problem that the nest 9A is apt to occur and the productivity is further reduced.

The present invention has been made in view of the above-mentioned problems of the prior art. The present invention efficiently presses air contained between particles of a powder cosmetic when pressing and solidifying the powder cosmetic. It is an object of the present invention to provide a method for producing a solid powder cosmetic, which is capable of preventing escape and formation of nests.

[0018]

[Means for Solving the Problems] Means to be adopted by the present invention for solving the above-mentioned problems are as follows: a saucer is arranged inside a female mold, and a predetermined amount of powdered cosmetic is placed in the female mold and the saucer. After filling a predetermined amount of powder cosmetics by the filling process, a large number of needles are inserted into the powder cosmetics from the upper side of the female mold to form a large number of air vent holes in the powder cosmetics. And a pressing step of pressing the powdered cosmetic in the female mold to solidify it in the pan after forming the air vent hole in the needle sticking step.

[0019]

With the above structure, since a large number of air vent holes are formed in the powder cosmetic before pressing in the pressing step, the powder cosmetic in the female mold is pressed by the male mold. The air contained between the particles of the powdered cosmetic can be efficiently escaped from the air vent hole when solidified by the above.

[0020]

Embodiments of the present invention will be described in detail below with reference to FIGS.

The same components as those of the above-mentioned prior art are designated by the same reference numerals and the description thereof will be omitted.

First, FIGS. 1 and 2 show a punching machine 11 used in the manufacturing method according to this embodiment. The punching machine 11 has an upper support plate 12, a lower support plate 13, an air cylinder 15 and a needle holding plate 16 which will be described later. It is composed of a piercing needle 17 and the like implanted in the.

Reference numeral 12 denotes an upper support plate, 13 denotes a lower support plate, and the upper support plate 12 and the lower support plate 13 are positioned by a plurality of bolts 14, 14, ... It constitutes the support frame. Here, a fitting hole 13A is formed in the center of the lower support plate 13 as shown in FIG.
Is installed. Then, the arm 1 of the upper support plate 12
2A is attached to a vertical actuator (not shown),
The vertical movement actuator causes the entire punching machine 11 to move up and down in the directions of arrows A and B.

Reference numeral 15 denotes an air cylinder as an actuator for moving the needle holding plate 16 up and down. The air cylinder 15 is roughly composed of a tube 15A and a piston rod 15B, and the lower end of the tube 15A is the upper support plate 1.
It is fixed to the upper surface of 2. And the air cylinder 1
When the air is supplied to and discharged from the tube 15A from an air supply source (not shown), the piston rod 15 moves from the tube 15A to the piston rod 15
B is expanded and contracted, and the piston rod 15B is attached to the upper support plate 12
And the lower support plate 13 are moved up and down.

Reference numeral 16 denotes a needle holding plate fixed to the tip of the piston rod 15B, and a large number of pointed piercing needles 17, 17, ... Are planted under the needle holding plate 16 with their tips aligned. The perforating needles 17 are vertically moved integrally with the needle holding plate 16.

Reference numeral 18 denotes a claw plate provided on the lower support plate 13. The claw plate 18 is formed in a thick plate shape from a resin material such as polytetrafluoroethylene, and the perimeter of the claw plate 18 is wide. 18A of the collar part, and the collar part 1
A large number of needle holes 18B, 18B, ... Are provided on the inner side of 8A to form a convex portion 18C which is bored upward and downward. Then, the digging plate 18 is attached to the lower supporting plate 13 by fitting the convex portion 18C into the fitting hole 13A of the lower supporting plate 13, and the piercing needle 17, in the needle hole 18B of the digging plate 18, 17, ...
Are slidably inserted.

The punching machine 11 used in this embodiment is constructed as described above, and the air cylinder 15 supported by the upper support plate 12 is used.
When the piston rod 15B extends from the tube 15A, the needle holding plate 16 supported at the lower end of the piston rod 15B is displaced downward, and the piercing needles 17 implanted in the needle holding plate 16 are shown in FIG. As shown, the tip is extended from the needle hole 18B of the claw plate 18. And the air cylinder 1
When the piston rod 15B of No. 5 contracts into the tube 15A, the needle holding plate 16 is displaced upward so that each piercing needle 17 is accommodated in the needle hole 18B of the squeegee plate 18. The powdered cosmetic material P attached to the piercing needle 17 is removed (see FIG. 2).

Next, a method of manufacturing the solid powder cosmetic according to this embodiment will be described with reference to FIGS.

First, FIG. 3 shows a state in which the saucer 3 is arranged in the female mold 1 as a preparation step. In this preparation step, the edge 3A of the saucer 3 has a gap in the saucer accommodating portion 2B of the female mold 1. Without being fitted, the female mold 1 is housed in a holding frame usually called "Hama" with the saucer 3 arranged inside.
It is sent to the filling machine (neither is shown) by a conveyer such as a conveyor.

Next, FIGS. 4 and 5 show a filling step for filling the female mold 1 and the saucer with the powder cosmetic material. In FIG. 4, the lower end of the filling cylinder 4 is the female hole 2 of the female mold 1. It is placed on the upper surface 1A of the female mold 1 so as to cover it, and the powder cosmetic P is filled so as to overflow from the female hole 2 of the female mold 1 and enter into the filling cylinder 4. In FIG. 5, the scraping plate 5 slides in contact with the upper surface portion 1A of the female mold 1 and relatively moves in parallel with the female mold 1 to cover the upper surface portion 1A of the female mold 1. P is removed, and the powdered cosmetic material P is quantitatively filled in the female hole 2 of the female die 1 by a predetermined amount, and the upper surface of the powdered cosmetic material P in the female hole 2 is flattened to form a scraped surface P1. .

Next, FIG. 6 and FIG. 7 show a needle stick process.

When the female die 1 transferred by the conveyor after the filling process reaches the bottom of the punching machine 11, the punching machine 11 as a whole descends to bring the lower support plate 13 and the female die 1 close to each other. Let Here, as shown in FIG. 6, the boring machine 11 extends the piston rod 15B from the inside of the tube 15A,
The needle holding plate 16 is lowered, and each perforating needle 17 is moved to the powder cosmetic P.
Insert it inside. Subsequently, when the piston rod 15B of the air cylinder 15 is contracted to raise the needle holding plate 16 and each piercing needle 17 is pulled out from the female hole 2 of the female mold 1, the powder cosmetic P in the female mold 1 is removed. As shown in FIG. 7, the abrasion surface P
A large number of air vent holes H, H, ... Are formed from 1 to the bottom 3B side of the tray 3.

Further, FIGS. 8 and 9 show a pressing process according to this embodiment.

In FIG. 8, reference numeral 19 denotes a male die used in this embodiment. The male die 19 is attached to the lower end of the piston rod 7B of the press 7 in the same manner as the male die 6 described in the prior art. Although attached, the male die 19 according to the present embodiment does not form a clearance C between the male die 19 and the female hole 2 of the female die 1, and is inserted so as to engage with the female hole 2 in a radial dimension and shape. have.

Then, in this pressing step, the female die 1 is transferred under the press machine 7, and the male die 1 is passed through the stamping paper 8.
9 is pressed from above toward the scraping surface P1 in the female hole 2, and the powder cosmetic P is pressed to solidify it, and the solid powder cosmetic 20 is molded.

Here, in this embodiment, in the above-mentioned needle sticking step, since the powder cosmetic P has air vent holes H, H, ... Formed from the scraping surface P1 to the bottom 3B side of the saucer 3, the scraping surface When P1 is pressed by the male mold 19, the air contained between the particles of the powder cosmetic P is efficiently discharged from each air vent hole H through a gap (not shown) between the punching paper 8 and the male mold 19. It is well discharged, and it is possible to prevent the formation of nests in the solid powder cosmetic 20. Further, each air vent hole H becomes thinner as the powder cosmetic P is pressed and the gap between the particles of the powder cosmetic P becomes smaller, and becomes completely closed and disappears when the pressing step is completed.

Thus, when the pressing process is completed, the stamping paper 8 is removed, and the pan 3 is removed from the female die 1, as shown in FIG.
As shown in FIG. 3, the solid powder cosmetic 20 is molded inside the saucer 3.

Here, especially in this embodiment, a needle sticking step is provided between the filling step and the pressing step, and the powder cosmetics P in the female die 1 are provided in a large number from the scraped surface P1 to the bottom 3B side of the saucer 3. Since the air vent holes H, H, ... Of are formed, when the powder cosmetic P is pressed by the male die 19, the air contained between the particles of the powder cosmetic P is passed through each air vent H. Solid powder cosmetics that can be released to the outside 20
It is possible to prevent the formation of nests in the.

Further, according to this embodiment, the clearance C is provided between the male die 19 and the female hole 2 of the female die 1 as in the prior art.
Since air can be escaped from between the particles of the powder cosmetics P through the air vent holes H, H, ... Without providing the solid powder, the solid powder on the inner peripheral side of the edge 3A of the saucer 3 is different from the conventional technique. It is possible to prevent burrs from being generated in the cosmetic 20, and FIG.
As shown in, the solid powder cosmetic 20 can have a good appearance.

Furthermore, since the air can be released from the powder cosmetic P through the air vent holes H, the speed of pushing the male die 19 in the pressing step can be increased and the productivity can be improved. .

Thus, according to this embodiment, it is possible to prevent a nest from being formed inside the solid powder cosmetic 20 and a burr from being formed on the solid powder cosmetic 20 on the inner peripheral side of the edge of the saucer 3. In addition, the appearance of the solid powder cosmetic 20 can be improved, and the pressing process can be completed in a short time, so that the productivity can be improved.

In the above-mentioned embodiment, the case where the female die is of a type that is placed on a conveyor and conveyed is described as an example, but the present invention is not limited to this, and the conveyor has a lower die. Side, the female die with the pedestal inserted into the female hole is fixedly attached, the saucer is placed on the pedestal, and the lower press machine pushes the saucer upward through the pedestal and at the same time the upper press machine You may apply to the automatic molding line which presses powder cosmetics with the provided male mold.

Further, in the above-mentioned embodiment, the description was made assuming that the lower support plate 13 of the punching machine 11 is provided with the squeeze plate 18, but, for example, when the powder cosmetic P has a small binder content, the squeeze plate 18 is used. The plate 18 may be omitted.

On the other hand, the punching machine used in the present invention is not limited to that of the embodiment, and a large number of needle holding plates may be moved up and down at the same time. Can be

Further, in the above embodiment, the case where the needle sticking step is performed by the punching machine 11 has been described as an example, but the present invention is not limited to this, and the needle sticking step may be performed manually.

[0046]

As described in detail above, according to the method for producing a solid powder cosmetic of the present invention, a saucer is arranged inside a female mold, and a predetermined amount of powdered cosmetic is placed in the female mold and the saucer. After filling a predetermined amount of powder cosmetics by the filling process, a large number of needles are inserted into the powder cosmetics from the upper side of the female mold to form a large number of air vent holes in the powder cosmetics. After forming the air vent hole in the needle sticking step and the needle sticking step,
Since the powder cosmetic in the female mold is pressed and solidified in the receiving plate, the powder cosmetic in the female mold is pressed from the air vent holes when the powder cosmetic is pressed by the male mold. Air contained between particles of the cosmetic can be efficiently escaped, and the powder cosmetic can be solidified without providing a gap between the male mold and the female mold. It is possible to mold a solid powder cosmetic having a good appearance without causing burrs and burrs.

Further, since the air can be efficiently evacuated through the air bleeding hole, the pushing speed of the male die can be increased, and the appearance of the solid powder cosmetic can be improved and the productivity can be enhanced. And so on.

[Brief description of the drawings]

FIG. 1 is a front view showing a punching machine used in a needle sticking step in an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view of essential parts showing a piercing needle, a claw plate and the like in FIG.

FIG. 3 is a vertical cross-sectional view showing a state in which a saucer is arranged in a female mold as a preparatory step in the method for manufacturing a solid powder cosmetic according to the embodiment of the present invention.

FIG. 4 is a vertical cross-sectional view showing a filling step of placing a filling cylinder on a female mold and filling a powder cosmetic.

5 is a vertical cross-sectional view showing a state in which a surplus powder cosmetic is scraped off from the upper surface portion of the female die shown in FIG. 4 and the filling step is completed.

FIG. 6 is a vertical cross-sectional view showing a needle piercing step of forming an air vent hole in a powdered cosmetic material in a female mold and a saucer by a punching machine.

FIG. 7 is a vertical cross-sectional view showing a state in which air vent holes are formed in the powdery cosmetic material in the female mold and the saucer.

FIG. 8 is a vertical cross-sectional view showing a pressing step of inserting a male die into a female die and solidifying the powder cosmetic.

FIG. 9 is a vertical cross-sectional view of a female die, a saucer, and a solid powder cosmetic material showing a state where the pressing process is completed.

FIG. 10 is a vertical cross-sectional view showing a solid powder cosmetic material manufactured according to an example of the present invention.

FIG. 11 is a vertical cross-sectional view showing a state in which a saucer is arranged in a female mold as a preparatory step in a method for manufacturing a solid powder cosmetic according to a conventional technique.

FIG. 12 is a vertical cross-sectional view showing a filling step of placing a filling cylinder on a female mold and filling the powder cosmetic.

FIG. 13 is a vertical cross-sectional view showing a state in which excess powder cosmetics are scraped off from the upper surface of the female die and the filling step is completed.

FIG. 14 is a vertical cross-sectional view showing a pressing step of inserting a male die into a female die and solidifying the powdered cosmetic.

FIG. 15 is a vertical cross-sectional view of the female die, the saucer, and the solid powder cosmetic material showing a state where the pressing process is completed.

FIG. 16 is a vertical cross-sectional view showing a solid powder cosmetic produced by a conventional technique.

[Explanation of symbols]

 1 Female mold 3 Sauce 5 Scraping plate 7 Press machine 8 Stamping paper 11 Punching machine 15 Air cylinder 16 Needle holding plate 17 Punching needle 19 Male mold 20 Solid powder cosmetics H Air vent hole P Powder cosmetics C clearance

Claims (1)

(57) [Claims] 1. A filling step of arranging a saucer inside a female mold and filling a predetermined amount of powdered cosmetic in the female mold and the saucer.
After filling a predetermined amount of the powder cosmetic in the filling step, inserting a large number of needles into the powder cosmetic from the upper side of the female mold to form a large number of air vent holes in the powder cosmetic, and the needle stick. A method for producing a solid powder cosmetic, comprising a step of pressing the powder cosmetic in the female mold and solidifying the powder cosmetic in the pan after forming the air vent hole in the step.