JP2557761B2 - Method and device for forming rod-shaped material - 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 and apparatus for molding lipsticks, lipsticks, stick foundations, cosmetics such as eyeliner pencils, medicines such as suppositories, and other rod-shaped materials.

[0002]

2. Description of the Related Art Conventionally, Japanese Utility Model Laid-Open No. 122035/1990,
JP-B-63-56203, JP-A- 59-4080
There is a method for molding a stick-shaped cosmetic as described in Japanese Patent Publication No.

In the prior art disclosed in Japanese Utility Model Laid-Open No. 1-122035, a molding die is divided into an upper die which is a crowning portion molding die and a lower die which is a coating portion molding die of a cosmetic body. A blowing air opening for releasing the main body from the coating section molding die is opened at the bottom of the coating section molding die.

The prior art disclosed in Japanese Examined Patent Publication No. 63-56203 discloses that when a stick-shaped cosmetic material is extracted from a molding hole of a mold, compressed air is obliquely applied to a circular contact portion between the stick-shaped cosmetic material and the upper end of the molding hole from above. Is what is blown. JP 59
The prior art described in Japanese Patent Publication No. 40806 is for stick-shaped cosmetics.
Of the mold (OJIVE capsule) that forms the side and bottom
Ventilation holes are provided on the upper peripheral edge, and the rod is
When removing the cosmetic powder, make sure that the mold is
And push it down to remove the mold from all sides and bottom of the cosmetic stick.
Compressed air separated from the contact surface and supplied from the ventilation holes
Through the molding hole of the mold to the void in the inner bottom of the mold.
Then, the stick-shaped cosmetic material is extruded.

[0005]

[Problems to be Solved by the Invention]
The prior art described in Japanese Patent No. 122035 has the following problems.

When cooling the cosmetic material filled in the mold, it is difficult to obtain uniform cooling (uniform crystal structure) because the upper mold and the lower mold are divided. In particular, distortion is likely to occur in the portion corresponding to the boundary between the lower mold and the upper mold of the cosmetic.

When the upper mold is opened, the adhesive force between the upper mold and the cosmetic tends to cause distortion in the cosmetic corresponding to the upper mold and the boundary corresponding to the lower mold. Due to the above, the strength of the cosmetic material is lowered and the cosmetic material is easily broken during use.

The air used when peeling the molding cosmetic from the molding die is blown from a micro-blowing opening (caliber 0.3 mm) at the bottom of the molding die (the tip of the molding cosmetic). The tip part is easily crushed by a local excessive surface pressure, and the appearance is significantly impaired.

Molten cosmetic material enters the air blowing port, and projections are likely to be formed at the tip of the molded cosmetic material, which spoils the appearance. When the melted cosmetic material enters the air blowing port, the blowing port is closed and the ejection of air is blocked, making it impossible to remove the molten cosmetic material.

In order to fit the cosmetics container to the base end of the molded cosmetic, it is necessary to press fit the container with the robot hand to the crown part exposed by opening the upper mold. The loading operation is complicated.

Further, in the prior art disclosed in Japanese Patent Publication No. Sho 63-56203, compressed air is passed from the circular contact portion between the stick-shaped cosmetic material and the upper end of the molding hole to the gap between the inner surface of the molding hole and the molding cosmetic material. It is intended to give the cosmetics a lifting force while peeling off the adhesive between the molding holes and the molding cosmetics. However, it is practically difficult to inject necessary and sufficient compressed air into the gap between the inner surface of the molding hole and the molding material through the circular contact portion between the rod-shaped cosmetic material and the upper end of the molding material. It is difficult to surely perform the mold release and the complete withdrawal. In addition, JP-A-59-
In the conventional technique described in Japanese Patent No. 40806, the following (a),
There is a problem of (b). (A) When forming a void in the inner bottom of the molding die,
Remove the mold from all contact surfaces on the side and bottom of the stick-shaped cosmetic.
It is necessary to make contact with the side surface of the stick-shaped cosmetic during this peeling.
The forming mold that does this easily damages the side surface of the stick-shaped cosmetic. (B) Inside the forming hole of the forming die when introducing compressed air into the void
The compressed air from a slight gap between the surface and the outer surface of the bar-shaped cosmetic.
It is a type of tool and it is necessary and sufficient to compress the inner bottom of the mold.
There are practical difficulties in introducing air quickly.

According to the present invention, the strength of the molded rod can be secured,
An object of the present invention is to make it possible to reliably remove a rod-shaped object from a molding die without impairing the aesthetic appearance of the tip of the rod-shaped object.

Another object of the present invention is to enable a rod-shaped object to be easily loaded into a rod-shaped object container.

[0014]

According to a first aspect of the present invention, there is provided a method for forming a rod-shaped article by forming a rod-shaped article with a forming hole provided in a forming die .
The bottom of the forming hole to form a bottom closed by a bottom closure, withdrawal when the stick-shaped material, the bottom closure sticks bottom or <br/> et spaced, gap between the bottom closure and the stick-shaped material surface Forming
Then, from the gas flow path provided around the bottom closing body outside the molding hole
A compressed gas is supplied to the void, and the rod-shaped material is extruded from the molding hole by the compressed gas pressure.

According to a second aspect of the present invention, in a method of forming a rod-shaped article by forming a rod-shaped article with a forming hole provided in a molding die , the bottom surface of the rod-shaped article is formed when the rod-shaped article is formed. > the bottom of Katachiana closed by a bottom closure, withdrawal when the stick-shaped material, and separating the bottom closure from sticks bottom, forming a space between the bottom closure and the stick-shaped material surface of the molded hole outside bottom
The compressed gas is supplied to the above-mentioned gap from the gas flow path provided around the closed body , and the rod-shaped material is extruded from the molding hole to the side of the rod-shaped container by the compressed gas pressure, and the base end of the rod-shaped object is loaded into the rod-shaped container. It is something that is done.

According to a third aspect of the present invention, in a rod-shaped article forming apparatus for forming a rod-like article by a forming hole provided in a forming die, the apparatus is provided around the bottom of the forming hole forming the bottom surface of the rod-like article in the forming die. And a bottom closing body that closes the bottom,
Closing body setting change means for setting the bottom closing body to the bottom closing position when molding the rod-shaped object, and setting it to the bottom opening position separated from the bottom closing position when removing the rod-shaped object, and the bottom closing body set to the bottom opening position. Gas flow provided around the bottom block outside the forming hole in the gap formed between the bottom of the rod and the bottom of the rod.
And a compressed gas supply means for supplying a compressed gas from the passage .

According to a fourth aspect of the present invention, in addition to the third aspect of the present invention, the closing body setting changing means sets a spring body for setting the bottom closing body to a bottom closing position and a bottom closing body. The closed body pressurizing chamber to which a fluid pressure can be applied so as to set the bottom open position against the spring force of the spring body.

According to a fifth aspect of the present invention, in addition to the fourth aspect of the present invention, the compressed gas supply means applies a compressed gas pressure to the closing body pressurizing chamber, and further, the closing body is applied. The compressed gas is supplied from the pressure chamber to the space between the bottom closing body and the bottom surface of the rod-shaped object through a gas flow path around the closing body.

The present invention according to claim 6 provides the invention according to claims 3 to 5.
Further, in the present invention according to any one of the above items, the bottom closing body closes the bottom of the molding hole in the molding die in a flat shape.

[0020]

According to the present invention, the following effects are obtained. Since the molding die is an integrated type with no upper and lower boundaries, it is possible to ensure uniform cooling of the rod-shaped material and even adhesion, and to realize seamless molding without any boundary, thereby ensuring the strength of the molded rod-shaped material.

The bottom closing member completely closes the bottom of the forming hole at the time of molding the rod-shaped member, and moves at the time of extracting the rod-shaped member to form a gap for supplying compressed gas with the surface of the molded rod-shaped member for the first time. Therefore, at the time of molding the rod-shaped object, the end portion of the rod-shaped object is provided with a desired beautiful molding surface by the bottom closing body.
Further, when the rod-shaped material is extruded by the compressed gas, the pressure of the compressed gas is applied to the tip end portion of the rod-shaped object through the relatively wide gap, and there is no possibility that the rod-shaped material is crushed due to the local excessive surface pressure. The bottom block forms the bottom surface of the rod and
There is no place to form the side surface of the object,
The voids are formed only by separating. Therefore,
The movement of the bottom closure to form the void creates a stick
No side damage. Compressed gas is introduced into the void from the flow path outside the molding hole.
It is a small gap between the inner surface of the molding hole and the outer surface of the bar.
Since it is not used as a flow path, it is necessary to
Compressed gas can be introduced quickly.

[0022] The bottom block is the bottom of the rod after cooling and solidification.
Only when the setting is changed from the part closed position to the bottom open position.
It forms a compressed gas supply path to the shaped hole.
The molten material of rod-shaped material enters the gas supply path
There is no such thing as boring. Therefore, the rod-shaped object
Stable supply ensures reliable removal from the mold.

[0023] Molded rods are molded by compressed gas pressure
It is extruded from the hole and then its base end is put into a rod-shaped container.
It may be loaded. According to this,
Can be easily loaded into a rod-shaped object container.

[0024]

FIG. 1 is a schematic view showing a lipstick molding device according to an embodiment of the present invention, and FIG. 2 is an end view showing a bottom closing body inside a closing body housing hole.

The lipstick molding device 10 is for molding the lipstick 1 by means of the molding holes 11A provided in the molding die 11. The lipstick molding device 10 has a bottom blocker 12, a blocker setting changing device 13, and a compressed air supply circuit 14.

The bottom closing body 12 is housed in a closing body housing hole 23 provided in a closing body unit 22 that is bolted to the molding die 11 and sealed by an O-ring 21, and surrounds the bottom portion 11B of the molding hole 11A. And closes the bottom portion 11B. The bottom block 12 has a molding hole 11A.
The bottom portion 11B is flatly closed, and the closed surface serves as a molding surface for molding the cut surface 1A (bottom surface) of the lipstick 1.

At this time, the bottom closing body 12 has a large diameter portion 2 above and below a small diameter portion 24 which forms a closing body pressure chamber 32 which will be described later.
5 and 26, an air passage 27 having a fine void shape is formed on the outer peripheral portion of the large-diameter portion 25 on the molding hole 11A side with the closing body accommodating hole 23 (see FIG. 2), and anti-molding is performed. The outer peripheral portion of the large-diameter portion 26 on the hole 11A side is in sliding contact with the closed body housing hole 23 over the entire circumference.

The closing body setting changing device 13 includes the bottom closing body 12
Is pressed against the outer edge of the bottom portion 11B of the molding hole 11A to set the bottom closing body 12 to the bottom closing position, and the bottom closing body 12 is moved to the bottom opening position against the spring force of the spring body 31. The closed body pressurizing chamber 32 to which the air pressure can be applied so as to be set. The spring body 31 is housed in the spring chamber 33. At this time, the molding hole 1 is formed in the closing body pressurizing chamber 32.
1A is connected to the compressed air supply circuit 14 provided around the bottom closing body 12 , and the closing body pressurizing chamber 32 is provided with the molding hole 11A through the air flow passage 27 provided on the outer peripheral portion of the bottom closing body 12. It is possible to communicate with. As a result, the closing body setting changing device 13 sets the bottom closing body 12 to the bottom closing position by the spring body 31 at the time of molding the lipstick 1, and at the time of removing the lipstick 1, the closing body pressurizing chamber from the compressed air supply circuit 14. The air pressure applied to 32 sets the bottom closure 12 from the bottom closure to the bottom open.

When the bottom closing body 12 moves from the bottom closing position to the bottom opening position, the air in the spring chamber 33 is opened to the atmosphere by the atmosphere opening circuit 34 so that the movement of the bottom closing body 12 is not hindered. There is.

As described above, the compressed air supply circuit 14 applies the compressed air pressure to the closing body pressurizing chamber 32, and further from the closing body pressing chamber 32 through the air flow path 27 around the bottom closing body 12. , The bottom closure 12 set to the above-mentioned bottom open position
And compressed air is supplied to the space A formed between the cut surface 1A of the lipstick 1 which has been cooled and solidified in the molding hole 11A.
The compressed air supply circuit 14 is fitted with a compressed air nozzle 41 and supplied with compressed air.

The lipstick molding apparatus 10 is sequentially transferred to the molten lipstick material filling position, the cooling and solidifying line, and the container loading position, and the container 2 is supplied above the molding die 11 at the container loading position. There is.

Next, the molding operation of the lipstick molding device 10 will be described. (1) At the molten lipstick material filling position, the molten lipstick material is filled into the forming hole 11A of the forming die 11. The filling weight at this time is about 4 g, and the spring force of the above-mentioned spring body 31 that backs up the bottom closing body 12 is 200 to 250 g. Therefore, the bottom closing body 12 is held at the bottom closing position and the filling is completed. (See FIG. 1A).

After the filling is completed, the mold 11 is cooled by water cooling in the process of moving through the cooling and solidifying line, and the molten lipstick material is cooled and solidified to mold the lipstick 1. As the cooling method, any other method such as air cooling may be selected.

(2) Mold 11 for which lipstick 1 has been molded
Is set to the container loading position, and the robot positions the container 2 above the mold 11. A compressed air nozzle 41 is fitted in the compressed air supply circuit 14, and compressed air (2 to 6 kg / c
m ² ) is supplied.

The closed body pressurizing chamber 32 of the closed body setting changing device 13
When the compressed air is supplied to the spring body 3, the compressed air action force (1.6 to 4.9 kg) applied to the action surface in the closing body pressurizing chamber 32 is generated.
1 against the spring force, the bottom closure 12 is set to the bottom open position separating from the bottom closure and the cut surface 1 of the lipstick 1
A gap A is formed between A and the bottom block 12 (FIG. 1).
(B)).

(3) Cut surface 1A of lipstick 1 and bottom block 1
At the same time that a gap A is formed between the compressed air supply circuit 14 and the compressed air supply circuit 14, the compressed air passes through the air passage 27 (0.3 mm gap) around the bottom closing body 12 from the closing body pressurizing chamber 32. 2 to 6 kg / cm ² on the cut surface 1 A of the lipstick 1 supplied to A.
Apply compressed air pressure.

The lipstick 1 to which the compressed air pressure is applied is released from the mold 11 by the air pressure and extruded to the container 2 side.
The base end of the container 2 is loaded into the inner plate 2A of the container 2 (see FIG. 1).
(See (C)).

After that, the entire lipstick 1 is pulled out from the molding die 11 by the robot. At this time, the compressed air supply circuit 14
The compressed air may be supplied to the molding hole 11A or may be stopped.

When the extraction of the entire lipstick 1 is completed, the compressed air nozzle 41 is removed and the residual pressure of the compressed air in the molding hole 11A is released to the atmosphere.
1 again sets it to the bottom closed position and forms the molding surface for the cut surface 1A of the lipstick 1.

Next, the operation of this embodiment will be described. Since the molding die 11 is an integrated type with no upper and lower borders, it is possible to secure the cooling state of the lipstick 1 and the adhesive force evenly, and the strength of the lipstick 1 can be secured by realizing the borderless integral molding. .

The bottom block 12 completely closes the bottom 11B of the molding hole 11A during the lipstick molding, and moves when the lipstick is removed to form a gap A for supplying compressed air with the surface of the molding lipstick for the first time. To do. Therefore, when the lipstick 1 is formed, the lip closure tip portion is provided with the desired beautiful cut surface 1A by the bottom closing body 12. Further, when the lipstick 1 is extruded by the compressed air, the compressed air pressure is applied to the lipstick tip through the relatively wide space A, and there is no possibility that the lipstick 1 is crushed by the local excessive surface pressure. The bottom block 12 forms the bottom surface of the lipstick 1.
Bottom of lipstick 1 because there is no place to form the side of lipstick 1
The gap A is formed only by separating from the above. Obedience
To move the bottom block 12 to form the void A.
Further, the side surface of the lipstick 1 is not damaged. The compressed gas is emptied from the flow path 27 outside the forming hole 11A.
It is guided to the gap A, and the inner surface of the molding hole 11A and the lipstick 1
Since the flow path is not a small gap with the outer surface,
The necessary and sufficient compressed gas can be rapidly introduced into the void A.

[0042] The bottom blocker 12 cools and solidifies the lipstick 1.
After that, the setting was changed from the bottom closed position to the bottom open position for the first time.
To form a compressed air supply path to the molding hole 11A
And the molten material of Lipstick 1 enters the compressed air supply path.
There is no such thing as blocking the supply path. Therefore, lipstick 1
Is reliably removed from the mold 11 by the stable supply of compressed air
Can be taken.

[0043] Molding lipstick 1 is molded by compressed air pressure
It is extruded from the hole 11A, and then its base end is covered with lipstick.
It is loaded into the vessel 2. Therefore, simply apply the lipstick 1 to the container 2.
Can be filled.

In the practice of the present invention, the fluid pressure to the obstruction body pressurizing chamber which constitutes the obstruction body setting changing means does not correspond to the compressed gas supply means to the gap between the bottom obstruction body and the surface of the rod-shaped object. It may be supplied through another route.

Further, in the practice of the present invention, the closing body setting changing means may be constituted by other means such as a solenoid instead of the spring body and the closing body pressurizing chamber.

[0046]

As described above, according to the present invention, the strength of the molded rod can be secured, and the rod can be reliably pulled out from the molding die without impairing the aesthetic appearance of the tip of the rod.

Further, according to the present invention, the rod-shaped article can be easily loaded into the rod-shaped article container.

[Brief description of drawings]

FIG. 1 is a schematic view showing a lipstick molding device according to an embodiment of the present invention.

FIG. 2 is an end view showing a bottom closing body inside a closing body accommodating hole.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Lipstick (rod-shaped) 10 Lipstick molding apparatus 11 Mold 11A Molding hole 11B Bottom 12 Bottom blocker 13 Blocker setting change device 14 Compressed air supply circuit 27 Air passage (gas flow path)

Claims (6)

(57) [Claims] 1. A method of forming a rod-shaped article by forming a rod-shaped article with a forming hole provided in a forming die, wherein at the time of forming the rod-shaped article, the bottom of the forming hole forming the bottom surface of the rod-shaped article is closed by a bottom blocker, sampling the time of stick-shaped material, and separating the bottom closure from sticks bottom, between the bottom closure and the stick-shaped material surface
A gap is formed and a gas is installed around the bottom block outside the molding hole.
A method for forming a rod-shaped article, comprising: supplying a compressed gas from the flow channel to the void, and extruding the rod-shaped article through a forming hole by the pressure of the compressed gas. 2. A method for forming a rod-shaped article by forming a rod-shaped article with a forming hole provided in a forming die, wherein at the time of forming the rod-shaped article, the bottom of the forming hole forming the bottom surface of the rod-shaped article is closed by a bottom blocker, sampling the time of stick-shaped material, and separating the bottom closure from sticks bottom, between the bottom closure and the stick-shaped material surface
A gap is formed and a gas is installed around the bottom block outside the molding hole.
A compressed gas is supplied from the flow passage to the above-mentioned void, the rod-shaped object is extruded from the forming hole to the side of the rod-shaped object container by the compressed gas pressure, and the base end of the rod-shaped object is loaded into the rod-shaped object container. Method of molding things. In the molding apparatus according to claim 3] sticks to mold the shaped material by the molding hole provided in the mold, the rod-shaped in the mold
A bottom closing body that is provided around the bottom of the forming hole that forms the bottom surface of the object and closes the bottom, and the bottom closing body is set to the bottom closing position when the rod-shaped object is formed, and the bottom closing position is set when removing the rod-shaped object. The closing body setting changing means set to the separated bottom opening position, and the bottom portion outside the forming hole in the gap formed between the bottom closing body set to the bottom opening position and the bottom surface of the rod-shaped object.
A device for molding a rod-shaped article, comprising: a compressed gas supply means for supplying a compressed gas from a gas flow path provided around the closing body . 4. The closing body setting changing means sets a spring body for setting the bottom closing body to a bottom closing position and a fluid pressure for setting the bottom closing body to a bottom opening position against the spring force of the spring body. 4. The rod-shaped article molding apparatus according to claim 3, comprising a closed body pressurizing chamber to which is applied. 5. The compressed gas supply means applies a compressed gas pressure to the closing body pressurizing chamber, and further, from the closing body pressing chamber via the gas flow path around the closing body, to the bottom closing body. Stick bottom
The rod-shaped object molding apparatus according to claim 4, wherein the compressed gas is supplied to a space between the surface and the surface . 6. The apparatus for molding a rod-shaped article according to claim 3, wherein the bottom block body flatly blocks the bottom of the molding hole in the molding die.