JPH0637776Y2 - Mold for molding stick cosmetics - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a mold for molding a stick-shaped cosmetic suitable for molding a stick-shaped cosmetic such as a stick-shaped lipstick or lip balm.

[Conventional technology]

In general, for example, a stick-shaped lipstick among stick-shaped cosmetics is prepared by filling an oil-based cosmetic in a molten state in a cosmetic molding portion of a mold and cooling it, and then removing the solidified lipstick body from the mold. I am trying to mold it. Then, by changing the shape of the cosmetic molding part of the mold, as shown in FIG. 5, the tip side of the application parts 1A, 2A, 3A, 4A of the lipstick bodies 1, 2, 3, 4 are cut on one side (with (A), a hemispherical shape (same figure (b)), a double-sided cut type (same figure (c)), a columnar shape (same figure (d)) and the like.

For example, as shown in FIG. 5 (a), the application part of the lipstick body 1
When molding the lipstick body 1 of the single-sided cut type having the cut surface 1A ₁ in 1A, a mold 5 as shown in FIGS. 6 to 8 is used. The mold 5 is composed of a pair of split molds 6 and 7. The split mold 6 on one side is formed with a notch 8A having an L-shaped cross section on the upper side along the longitudinal direction and Meeting
6A has a row of recesses 9A each having a semicircular groove whose lower end is narrowed like a tip of a cannonball. On the other hand, on the other side split mold 7, a notch 8B having an L-shaped cross section is formed on the upper side along the longitudinal direction, and the abutting surface 7A has a notch 9 having a slanted lower end.
Recessed 9B, 9 consisting of a semicircular groove with B ₁
B, ... are lined up (see FIG. 7). By abutting the abutting surfaces 6A, 7A of the pair of split dies 6, 7 with each other, a long groove-shaped scraping groove 8 is formed in the upper part of the mold 5, and the scraping groove 8 is formed in the scraping groove 8. On the other hand, the bottomed cosmetic molding portion 9 is formed with the lower end side closed at right angles.

The molding die 5 is configured as described above, and means for filling the oil-based cosmetic material in a heated and melted state from the cosmetic material molding portion 9 to the scraping groove 8 and air-cooling or water-cooling the mold 5 from the outside. Then, the lipstick main body 1 having the cut surface 1A ₁ inclined to one end side, in the figure, the lower end side, is solidified by cooling using.

Finally, when the mold 5 is opened in two, the lipstick main body 1 is fitted in the recess 9A (9B) of one of the split molds 6 (7), so cut as shown in FIG. Face the lipstick body 1 with the fingertips of one hand on the surface 1A ₁ or the spherical surface around it and the fingertips of the other hand on the outer peripheral surface of the lipstick body 1.
By pushing in the direction, it is taken out from the recess 9A (9B) (see FIG. 8). And the whole lipstick body 1 is soft,
Since it is easy to lose its shape, it is necessary to carefully apply force when shifting it, but by pressing the cut surface 1A ₁ or the spherical surface, the lipstick body 1 can be released from the mold 5 without damaging the outer surface. it can.

[Problems to be solved by the device]

By the way, of the lipstick main bodies 2, 3, 4 other than the one-sided cut type lipstick main body 1, the hemispherical type lipstick main body 2 and the double-sided cut type lipstick main body 3 are separated from the mold in the same manner as the one-sided cut type lipstick main body 1. Although it can be molded and therefore does not damage the outer surface, the molding of the cylindrical lipstick main body 4 shown in FIG. 1D has the following problems.

First, FIG. 9 shows a molding die 10 for molding the cylindrical lipstick main body 4, which is composed of a pair of symmetrical split dies 11,1.
It consists of 1. A cross section L is provided on the upper side of each split mold 11.
A letter-shaped notch 12A is formed along the longitudinal direction, and the abutting surface 11A includes a large diameter portion 13A ₁ and a small diameter portion 13A ₂ .
A concave portion 13A formed of a semicircular groove whose front end is closed at right angles to the axis is formed.

Then, by abutting the pair of split molds 11 and 11 described above, a long groove-shaped scraping groove 12 is formed on the upper side of the mold 10 and is perpendicular to the scraping groove 12. A cosmetic molding portion 13 having a bottomed cylindrical hollow is formed in the direction.

Then, when the lipstick main body 4 molded using the above-mentioned mold 10 is taken out from the mold 10, the lipstick main body fitted to the split mold 11 on either side as shown in FIG. The end face 4B ₁ of the inner plate insertion portion 4B of 4 is inserted in the direction of arrow B. However, the end face 4B ₁ is lower half recess of the middle tray installation portion 4B side 13
Since it fits inside A, the area on which the fingertip can be applied is smaller than that of the lipstick bodies 1, 2, and 3 of the single-sided cut type, hemispherical type, and double-sided cut type. Therefore, there is a drawback that the workability at the time of mold release is poor, and there is a problem that the corner corners of the inner plate insertion portion 4B are deformed and the product cannot be inserted into the inner plate.

As a measure against such a problem, as shown in FIG. 11, the mold 14 is composed of a pair of split molds 15 and 16, and one split mold 15 is composed of a semicircular groove whose both axial ends are open. Side recess 17
A is formed, and the other split mold 16 is formed with the other side recessed portion 17B formed of a semicircular groove to form the cosmetic molding portion 17, and the other split mold 16 is formed with the cosmetic molding portion 17B. The projecting portion 16A that closes the lower end side of the is integrally formed.

However, when the mold 14 is split into two pieces, the lipstick body 4 is not always fitted in one split mold 15, and conversely, when it remains in the other split mold 16, it is returned and taken out. May not be possible and may not necessarily solve the above problem.

The present invention has been made in view of the above-mentioned drawbacks of the prior art, and an object thereof is to provide a mold for molding a stick-shaped cosmetic material that can be taken out without damaging the stick-shaped cosmetic material.

[Means for Solving the Problems]

In order to solve the above-mentioned problems, the structure adopted by the present invention is such that an upper die is constituted by a pair of split dies whose abutting surfaces are abutted, and each split die abutting surface of the upper die has the respective To form a hollow cylindrical cosmetic molding part when the split molds are abutted with each other, groove-shaped recesses having upper and lower open ends are provided, and the cosmetic molding part is formed on the lower surface of the upper mold including the pair of split molds. The lower mold for closing the lower end side opening of the above is provided so as to be able to come into contact with and separate from the upper mold.

[Action]

With this configuration, after molding the stick-shaped cosmetic,
By removing the lower mold and opening the upper mold in two, it is possible to completely expose the axial lower end face of the bar-shaped cosmetic material fitted in the split mold and to insert the entire end face.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1 to 4. The same components as those of the conventional technique described above are designated by the same reference numerals, and the description thereof will be omitted.

In the figure, 21 is a molding die for molding the cylindrical lipstick main body 4, and the die 21 is composed of a combination of an upper die 22 and a lower die 27 described later, and the upper die 22 faces each other. The surface is an abutment surface 23A
23A, and the lower side surface is composed of a pair of split dies 23, 23 having contact surfaces 23B, 23B with the lower die 27.

Here, on the abutting surface 23A of each split mold 23, a notch 24A having an L-shaped cross section is formed along the longitudinal direction at the upper end side, and abuts from the notch 24A. A concave portion 25A formed of a semicircular stepped groove for forming a large-diameter coating portion 4A of the lipstick main body 4 and a small-diameter middle dish insertion portion 4B is formed on the surface 23B by opening upward and downward. . Then, the pair of split molds 23, 23
By abutting the upper mold 22, a long groove-shaped scraping groove 24 is formed on the upper end side, and a cosmetic molding formed of a cylindrical hollow communicating with the scraping groove 24 and having upper and lower end sides opened. The part 25 is formed.

Further, 26, 26 are guide grooves consisting of long grooves formed so as to be spaced apart from each other on the contact surfaces 23B, 23B of the split dies 23, 23,
A projection 28 described later is fitted in each of the guide grooves 26.

On the other hand, 27 is a lower mold, and the flat upper surface 27A of the lower mold 27 is a split mold 2
The abutting surfaces 23B, 23B of 3, 23 abut on the abutting surfaces 23B, 23B so as to be separable and laterally movable, and close the lower end side opening of the cosmetic molding portion 25 when the lipstick main body 4 is molded. Also 28,28
Are projections provided on the upper side surface 27A of the lower mold 27 so as to be positioned diagonally, and each of the projections 28 is slidably fitted in the guide groove 26 provided in the split mold 23. There is.

Reference numeral 29 in FIG. 1 is a clip for holding a pair of split molds in a state of abutting against each other when the lipstick main body 4 is molded.

The molding die 21 of this embodiment is configured as described above. Next, a method of molding the lipstick main body 4 using the molding die 21 will be described.

Molding die assembled as shown in FIGS. 1 and 2.
The oil-based cosmetic material in a heat-melted state is filled from the cosmetic material molding portion 25 into the scraping groove 24, and the mold 21 is cooled from the outside to solidify the oil-based cosmetic material.

Next, when the oily cosmetic solidified in the scraping groove 24 is scraped off, the lower mold 27 is slid with respect to the upper mold 22 in the arrow C direction as shown in FIG. The lower die 27 is guided by the guide grooves 26, 26 via the protrusions 28, 28 and slides in the lateral direction, whereby the lipstick body 4 attached to the upper side surface 27A of the lower die 27 is not deformed. It can be peeled off neatly.

After that, remove the lower mold 27, remove the clip 29, and remove the upper mold 22.
Cut into two. Since the lipstick body 4 is fitted in the recess 25A of the split mold 23 with both axial end surfaces completely exposed (see FIG. 4), the fingertips are placed on the entire end surface 4B ₁ on the side of the inner plate insertion portion 4B _1. The lipstick main body 4 can be released without damaging the lipstick main body 4 by pushing the lipstick main body 4 toward the other side in the direction of the arrow D and sliding it in the recess 25A.

Moreover, in the conventional molding die 5 used for the one-sided cut type lipstick main body 1 and the like, the cut surface 1A ₁ of the coating portion 1A or the periphery thereof that appears outside when the lipstick main body 1 is released from the product. respect of the will push against the finger tip spherical surface, to push the end face 4B ₁ of the inner tray insertion portion 4B without cracking table is inserted into the inner tray according to the outside in this embodiment Therefore, the psychological burden on the worker can be reduced and the workability can be improved as compared with the conventional technique.

As described above, according to the molding die 21 of the present embodiment, it is possible to release the lipstick main body 4 without damaging the lipstick body 4, but the lower die 27 to the upper die 22.
Since it is configured to move laterally in the direction of arrow C, the lower mold
The lipstick body 4 adhering to 27 can be peeled off without damage.

In addition, although the embodiment has exemplified the case where the lipstick main body 4 is molded, the present invention can also be used for a molding die such as a lipstick.

[Effect of device]

The present invention has been described in detail above, and when the molded stick-shaped cosmetic is released from the mold, the axial end surface of the stick-shaped cosmetic can be completely exposed. Since it is possible to push the entire surface with the fingertips, it becomes easy to perform the mold release work, and it is possible to surely prevent the shape of the stick-shaped cosmetic material from being deformed, so that the product yield can be improved.

[Brief description of drawings]

1 to 4 relate to an embodiment of the present invention. FIG. 1 is a partial perspective view of a molding die, FIG. 2 is a vertical sectional view of the molding die, and FIG. 3 is a molding die. FIG. 4 is an explanatory perspective view showing the state where the cylindrical lipstick main body is removed from the split mold, FIG. 5 to FIG. 11 are related to the prior art, and FIG. Appearance of type lipstick body, Fig. 5 (b)
Is an external view of the hemispherical type lipstick main body, FIG. 5 (c) is an external view of the double-sided cut type lipstick main body, FIG. 5 (d) is an external view of the columnar type lipstick main body, and FIG. 6 is a single-sided cut type lipstick main body molding Fig. 7 is a longitudinal sectional view of a molding die, Fig. 7 is a partial perspective view showing the molding die of Fig. 6 in a developed state, and Fig. 8 is an explanatory view showing a state in which the one-side cut type lipstick main body is taken out from the split mold. FIG. 9 is a vertical cross-sectional view of a molding die used for molding a cylindrical lipstick main body, and FIG. 10 is a portion showing a state where a cylindrical lipstick main body molded using the mold according to FIG. 9 is fitted in a split mold. FIG. 11 is a perspective view of another molding die used for molding the cylindrical lipstick main body. 22 …… Upper mold, 23 …… Split mold, 23A …… Abutting surface, 25 …… Cosmetic molding part, 25A …… Groove-shaped recess, 27 …… Lower mold.

Claims (1)

[Scope of utility model registration request] 1. An upper die is constituted by a pair of split dies that abut against each other, and each split die abutting surface of the upper die has a hollow cylindrical shape when the split dies are abutted. A lower mold for closing the lower end side opening of the cosmetic molding part is provided on the lower surface of the upper mold composed of the pair of split molds so as to form a cosmetic molding part with groove-shaped recesses open at both upper and lower ends. A mold for molding a stick-shaped cosmetic that is provided so as to be able to come into contact with and separate from the mold.