Cosmetic molding device and method for molding stick-shaped cosmetics using the cosmetic molding device

Abstract

A cosmetic product-molding device 100 comprising: a plurality of closed-end cylindrical molds 1 wherein a cosmetic composition L for a rod-shaped cosmetic product is filled into a cylindrical recessed section; outer cylinders 2 that surround the side surfaces of the plurality of molds 1 from the outside; a plurality of peltier elements 3 that can heat or cool the plurality of molds 1; and a control unit 5 that, by controlling each peltier element of the plurality of peltier elements 3, adjusts the temperature of each mold of the plurality of molds. The outer cylinders 2 are arranged such that the plurality of molds 1 do not affect the temperature of the filled material.

Description

[Technical Field]

[0001] The present invention relates to a cosmetic molding device and a method for molding stick-shaped cosmetic products using the cosmetic molding device. [Background technology]

[0002] In the conventional manufacturing process for typical stick-type cosmetics such as lipstick and eyeliner, the materials are heated and melted (preheated), the cosmetic composition is poured into a mold, and then cooled and solidified using cold air, after which the composition is removed from the mold and molded, as shown in Figure 1. During cooling and solidification, processes such as heating from above using warm air (reheating) and slow cooling by maintaining the composition at room temperature are added to eliminate distortions such as shrinkage holes that occur in the cosmetic composition during cooling and solidification.

[0003] When cold air is blown from below and hot air is blown from above onto a mold filled with a cosmetic material, the tip (bottom) of the mold cools rapidly and the base (top) cools slowly, so it was necessary to adjust the way the hot and cold air was blown to avoid uneven temperatures. This adjustment narrowed the range of molding conditions to avoid uneven appearance after solidification and insufficient strength.

[0004] Furthermore, because the process is affected by external factors such as temperature and humidity, the conveying speed, and the number of products on the line, skilled techniques are required to set the molding conditions in order to consistently produce high-quality products. In particular, there was the problem that the product was prone to cooling during testing because it was tested with a small production volume, but that it was more difficult to cool during mass production because the volume was larger than during testing.

[0005] Therefore, in order to enable flexible control of the mold temperature and accurate molding even without skilled techniques, Patent Document 1 discloses a manufacturing device that uses a Peltier element to control the temperature. As shown in Fig. 2, the manufacturing device of Patent Document 1 has a single mold X1 with a plurality of filling holes X2 (X2-1 to X2-5) formed in a row in the longitudinal direction, and two Peltier elements X3 are provided on both sides of the mold X1 in the longitudinal direction so as to sandwich the mold X1 therebetween. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Publication No. 2006-158513 Summary of the Invention [Problem to be solved by the invention]

[0007] However, in the manufacturing apparatus of Patent Document 1, a temperature difference occurs between the side of each filling hole X2 adjacent to the Peltier element X3 and the side adjacent to the adjacent filling hole X2. Furthermore, due to the heat conductivity of the mold X1, there was a risk that the temperatures of the filling holes X2-1 and X2-5 at both ends in the longitudinal direction of the multiple filling holes X2-1 to X2-5 would be lower than the temperatures of the other central filling holes X2-2, X2-3, and X2-4, which are affected by the adjacent filling holes. In other words, it was not possible to control the temperature uniformly within a single mold or between multiple molds.

[0008] In view of the above circumstances, the present invention aims to provide a cosmetic molding device that can independently control the temperature of the molds into which cosmetic materials are filled, and that can suppress temperature variations within each of multiple molds and within a single mold, regardless of the number of cosmetics to be molded. [Means for solving the problem]

[0009] In order to solve the above problems, in one aspect of the present invention, a cosmetic molding apparatus includes: a plurality of cylindrical molds with bottoms, each having a cylindrical recess filled with a cosmetic composition for a stick-shaped cosmetic; an outer cylinder that surrounds the side surface of each of the plurality of molds from the outside; a plurality of Peltier elements capable of heating or cooling the plurality of molding dies; and a control unit that adjusts the temperature of each of the plurality of molding dies by controlling each Peltier element of the plurality of Peltier elements, and the outer tube is installed so that the plurality of molding dies do not affect each other's temperature of the filled material. [Effects of the Invention]

[0010] According to one embodiment, in a cosmetic molding device, the temperature of the molds into which the cosmetic composition is filled can be independently controlled, and temperature variations can be suppressed within each of multiple molds and within a single mold, regardless of the number of cosmetics to be molded. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is an explanatory diagram of a molding process for a stick-shaped cosmetic material by a general bag-filling method according to Conventional Example 1. [Figure 2] FIG. 10 is a top perspective view of a molding device for a stick-shaped cosmetic material according to Conventional Example 2. [Figure 3A] 1 is a diagram showing the state of preheating in the molding process of a stick-shaped cosmetic material by the bag-filling method of the present invention. FIG. [Figure 3B] 1 is a diagram showing the state of a stick-shaped cosmetic material during filling in the molding process using the bag filling method of the present invention. FIG. [Figure 3C] FIG. 10 is a diagram showing the state of reheating with hot air from a Peltier element in the molding process of the stick-shaped cosmetic material using the bag-filling method of the present invention. [Figure 3D] 1A and 1B are diagrams showing the cooling state by a Peltier element in the molding process of a stick-shaped cosmetic material using the bag-filling method of the present invention. [Figure 3E] 1A and 1B are diagrams showing the state of detachment in the molding process of a stick-shaped cosmetic material by the bag-filling method of the present invention. [Figure 4] FIG. 2 is a perspective view of a temperature adjustment unit of the lipstick molding device according to the first embodiment of the present invention. [Figure 5A] FIG. 2 is a diagram showing a heat sink according to a first configuration example. [Figure 5B] FIG. 10 is a diagram showing a heat sink according to a second configuration example. [Figure 5C] FIG. 10 is a diagram showing a heat sink according to a third configuration example. [Figure 6] FIG. 2 is a diagram showing a substrate moving unit in the lipstick molding device. [Figure 7] FIG. 3D is a cross-sectional view showing a state in which a plurality of independent molding units are lined up in the conveyance direction in the manufacturing apparatus of FIGS. 3A to 3E. [Figure 8A] FIG. 10 is a top view illustrating wired power transmission to an independent control unit. [Figure 8B] FIG. 10 is a side view illustrating wired power transmission to an independent control unit. [Figure 9] 1 is a flow chart showing the manufacturing process of a molding filled in a feeding container by the back-filling method of the present invention. [Figure 10A] FIG. 10 is a cross-sectional explanatory view showing the position of the propelling tube in the propelling container during molding in bag filling. [Figure 10B] FIG. 10 is an explanatory cross-sectional view showing the position of the propelling tube in the propelling container when it is retracted during bag filling. [Figure 10C] FIG. 10 is an explanatory cross-sectional view showing the position when the cap is fitted onto the propelling container during bag filling. [Figure 11A] FIG. 2 is a cross-sectional view of an independent molding unit having a mold according to a first configuration example in the first embodiment. [Figure 11B] 11B is a top perspective view of the independent molding unit β1 of FIG. 11A from which an outer cylinder 2A and a Peltier element 3 have been removed. [Figure 11C] 11B is a bottom perspective view of FIG. [Figure 12A] FIG. 4 is a cross-sectional view of an independent molding unit having a mold according to a second configuration example in the first embodiment. [Figure 12B] 12B is a top perspective view of the independent molding unit β1 of FIG. 12A from which an outer cylinder 2A and a Peltier element 3 have been removed. [Figure 12C] 12B is a bottom perspective view. [Figure 13A] FIG. 10 is a cross-sectional view of an independent molding unit having a mold according to a third configuration example of the first embodiment. [Figure 13B] 13B is a top perspective view of the independent molding unit β1 of FIG. 13A from which the outer cylinder 2A and the Peltier element 3 have been removed. [Figure 13C] 13B is a bottom perspective view. [Figure 14A] FIG. 10 is a diagram showing the temperature distribution of heat in lower cooling. [Figure 14B] Schematic diagram showing the state inside a mold for lipstick formed by bottom cooling. [Figure 14C]FIG. 10 is a diagram showing the temperature distribution of heat in lateral cooling. [Figure 14D] Schematic diagram showing the state inside a mold for lipstick formed by lateral cooling. [Figure 15] 1 is a table showing experimental results of shrinkage holes in lipstick molding using bottom cooling and side cooling with air blowing. [Figure 16] This is a table showing the experimental results of the hardness and breakage resistance of lipstick molded using bottom cooling and side cooling with air blowing. [Figure 17] A table showing the characteristics when cooled rapidly and slowly. [Figure 18] A graph showing the temperature transitions in experiments using rapid cooling temperature pattern 1 and slow cooling temperature pattern 2. [Figure 19] A micrograph of lipstick crystals taken at the quenching temperature pattern 1 in Figure 18. [Figure 20] A micrograph of lipstick crystals taken at quenching temperature pattern 2 in Figure 18. [Figure 21] FIG. 1 is a diagram showing an example of temperature settings in cyclic cooling using a Peltier element of the present invention, and temperature transitions at the tip and base of a lipstick composition. [Figure 22] Temperature control flow during lipstick molding using the Peltier element of the present invention. [Figure 23A] 11B is a graph showing the temperature change of lipstick filled into the mold of the first configuration example of FIG. 11A. [Figure 23B] 12B is a graph showing the temperature change of lipstick filled into the mold of the second configuration example of FIG. 12A. [Figure 24A] FIG. 11B is a diagram showing the flow of heat in the independent molding unit of the first configuration example of FIG. 11A. [Figure 24B] FIG. 12B is a diagram showing the flow of heat in the independent molding unit of the second configuration example of FIG. 12A. [Figure 24C] FIG. 13B is a diagram showing the flow of heat in the independent molding unit of the third configuration example of FIG. 13A. [Figure 25] FIG. 10 shows the results of an experiment on the size of shrinkage holes and ease of breakage of lipsticks molded using the independent molding units of the first, second, and third configuration examples. [Figure 26] FIG. 2 is a control block diagram of the lipstick molding device of the present invention. [Figure 27] FIG. 10 is a cross-sectional view of an independent molding unit according to a second embodiment. [Figure 28] FIG. 10 is a cross-sectional view of an independent molding unit according to a third embodiment. [Figure 29A] FIG. 10 is a diagram showing an example of a bullet-shaped lipstick shape. [Figure 29B] 10A and 10B are diagrams showing examples of slim lipstick shapes. [Figure 29C] 10A and 10B are diagrams showing examples of crayon-shaped lipstick shapes. [Figure 29D] 10A and 10B are diagrams showing examples of lipstick shapes with spatula-shaped tips. [Figure 30] FIG. 10 is a cross-sectional view of an independent molding unit according to a fourth embodiment. [Figure 31A] FIG. 1 is an explanatory diagram of the molding process of a stick-shaped cosmetic material by the insert-filling method of the present invention, showing the preheating state. [Figure 31B] FIG. 10 is a diagram showing the state during filling using the insertion filling method. [Figure 31C] A diagram showing the state of reheating by a Peltier element in the insertion and filling method. [Figure 31D] FIG. 10 is a diagram showing the state of cooling and solidifying by a Peltier element in the insert filling method. [Figure 31E] FIG. 10 is a diagram showing the removal of the insert portion in the insert filling method. [Figure 31F] 10 is a diagram showing the state in which the outer tube, spiral tube, and elevator tube are attached in the extended state in the insert filling method. FIG. [Figure 31G] FIG. 2 is a diagram showing the state in which the molded stick-shaped cosmetic product is being released from the mold 1. [Figure 32] 1 is an overall view of a lipstick molding device using an insert filling method included in a lipstick-filled dispenser container filling molding manufacturing device. [Figure 33] FIG. 13 is a cross-sectional view of an independent molding unit according to a fifth embodiment. [Figure 34] FIG. 13 is a cross-sectional view of an independent molding unit according to a sixth embodiment. [Figure 35] FIG. 13 is a cross-sectional view of an independent molding unit according to the seventh embodiment. [Figure 36] FIG. 13 is a cross-sectional view of an independent molding unit according to the eighth embodiment. [Figure 37]FIG. 13 is a cross-sectional view of an independent molding unit according to the ninth embodiment. [Figure 38] FIG. 23 is a perspective view of a multiple integrally molded unit according to a tenth embodiment. [Figure 39] 39 is a cross-sectional view of the multiple integrally molded unit in the tenth embodiment of FIG. 38. [Figure 40] FIG. 23 is a perspective view of a multiple integrally molded unit according to the eleventh embodiment. [Figure 41] FIG. 41 is a cross-sectional view of the multiple integrally molded unit according to the eleventh embodiment of FIG. 40. DETAILED DESCRIPTION OF THE INVENTION

[0012] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following describes embodiments of the present invention with reference to the accompanying drawings. In the following drawings, the same components are designated by the same reference numerals, and redundant explanations may be omitted.

[0013] The present invention relates to a cosmetic molding device and a method for manufacturing a stick-shaped cosmetic product using the cosmetic molding device.

[0014] Examples of stick cosmetics include oily solids such as lipstick, lip balm, concealer, stick eye shadow, stick foundation, stick beauty serum, and stick moisturizer.

[0015] Furthermore, stick-type cosmetic materials may include not only solid materials formed into a predetermined shape, but also compositions that have a certain level of viscosity or higher and are capable of maintaining a predetermined shape, such as viscoelastic compositions, etc. Hereinafter, an example of a stick-type cosmetic material will be described, taking lipstick as an example.

[0016] First Embodiment Figures 3A to 3E are explanatory diagrams of the molding process for a stick-type cosmetic material using the bag-filling method of the present invention. Figure 3A shows the preheating state in the molding process of the present invention, Figure 3B shows the state during filling, Figure 3C shows the state during reheating by a Peltier element, Figure 3D shows the state during cooling, and Figure 3E shows the state of detachment in the molding process for a stick-type cosmetic material using the bag-filling method of the present invention.

[0017] As shown in FIGS. 3A to 3E, in the lipstick molding device of the present invention, a molding die 1 including a rubber mold 11 and a metal mold 12, an outer cylinder 2, and a Peltier element 3 are provided near a cosmetic molded product L.

[0018] The mold 1 is a cylindrical mold with a bottom, and the cylindrical recess is filled with a cosmetic composition for a stick-shaped cosmetic product. External cylinder 2 surrounds the side surface of casting mold 1 from the outside. Peltier element 3 is capable of heating or cooling casting mold 1 by changing its temperature.

[0019] In the case of the bag-filling method, the cosmetic product L is molded with an elevator cylinder (inner tray cylinder) 83 and a spiral cylinder (feeding cylinder, sleeve) 82 fitted on top of the cosmetic product L.

[0020] In the manufacturing process for the stick-shaped cosmetic product of the present invention, the mold is preheated (FIG. 3A), the heated and melted cosmetic composition is poured into the mold (FIG. 3B), reheated using a Peltier element (FIG. 3C), and cooled to solidify (FIG. 3D). After that, the cosmetic product is removed from the mold and molded (FIG. 3E).

[0021] In the present invention, unlike the conventional example shown in FIG. 1, when cooling and solidifying, direct heating (reheating) by a Peltier element and slow cooling by cyclic cooling are carried out instead of using wind.

[0022] Next, a configuration for realizing temperature control of the lipstick molding device according to the first embodiment of the present invention using the back-filling method will be described with reference to FIGS.

[0023] Fig. 4 is a perspective view of a temperature adjustment unit of a lipstick molding device in a first embodiment of the present invention. Figs. 5A to 5C are diagrams showing specific examples of heat sinks. Fig. 6 is a diagram showing the periphery of a substrate moving unit in a refrigerant tank. Fig. 7 is a cross-sectional view showing a state in which a plurality of independent molding units are lined up in the transport direction in the manufacturing device of Figs. 3A to 3E. Fig. 7 shows a cross-section of a temperature adjustment unit using a cooling method different from that of Fig. 4.

[0024] The temperature adjustment device 102 of the lipstick molding device 100 in Fig. 4 has a plurality of molding dies 1, a plurality of outer cylinders 2, a Peltier element 3, a heat sink 4, a controller 5, a refrigerant tank 6, and a cooling unit 7. The heat sink 4 is a member that cools the Peltier element, the refrigerant tank 6 cools the heat sink 4 using a first refrigerant C, and the cooling unit 7 cools the first refrigerant C using a second refrigerant W in the refrigerant tank. A substrate 50 on which the controller 5 is mounted may also be provided.

[0025] The lipstick molding device of Figure 4 shows a cooling configuration in which a plurality of molding dies 1 (1-1, 1-2, 1-3, 1-4), a plurality of outer tubes 2 (2-1, 2-2, 2-3, 2-4), and a Peltier element 3 are cooled by a heat sink 4, which is cooled by two types of refrigerant.

[0026] The first refrigerant C is, for example, an oil-based refrigerant such as heat grease with high thermal conductivity. The circulating second refrigerant W is preferably, for example, water (cooling water), alcohol, ethylene glycol, polyhydric alcohol, or an aqueous solution thereof, which has high specific heat and fluidity.

[0027] The mold 1 is a cylindrical mold with a bottom, in which the cosmetic composition of the stick-type cosmetic material is filled into a cylindrical recess, and a plurality of molds 1 are provided, the number of which is at least equal to or greater than the number of lipsticks to be filled at one time.

[0028] The outer cylinder 2 is a holder portion that surrounds at least the side surfaces of each of the multiple forming dies 1. The outer cylinder 2 is installed so that the multiple forming dies 1 do not affect each other in terms of the temperature of the filled material.

[0029] In this embodiment, the outer cylinders 2 are heat-retaining cylinders, and by being spaced apart from each other, temperature interference between adjacent forming dies 1 is prevented. Note that, although this example describes an example in which the same number of outer cylinders 2 are provided for each forming die 1, it is not necessary to provide the same number, and one outer cylinder may be provided for multiple forming dies 1 as long as the temperatures of the forming dies do not interfere with each other (tenth and eleventh embodiments).

[0030] The Peltier element 3 is in contact with at least a portion of the lower surface of the forming die 1 and the lower surface of the outer cylinder 2, and is capable of heating or cooling the forming die 1. In this embodiment, one Peltier element 3 is provided for every four forming dies 1 and outer cylinders 2.

[0031] Controller 5 is an example of a control unit, and is electrically connected to Peltier elements 3, controlling the value and direction of the current flow to adjust the temperature of each casting mold 1 via each Peltier element 3. Controller 5 is placed on the upper surface of substrate 50. A controller 5 is required for each cooling unit, and therefore substrate 50 is required.

[0032] The heat sink 4 is provided below the Peltier element 3 and cools the Peltier element 3 from below. The Peltier element 3 and the heat sink 4 must be in direct contact with each other.

[0033] Figures 5A to 5C are enlarged views of heat sinks: Figure 5A is a top perspective view of a heat sink 4 of a first configuration example, Figure 5B is a top perspective view of a heat sink 4A of a second configuration example, and Figure 5C is a perspective view of a heat sink 4B of a third configuration example.

[0034] As shown in Fig. 5A, the heat sink 4 has an upper surface pad 41 and a plurality of comb-like, rectangular rod-shaped protrusions (rod-shaped hanging bodies) 42 extending downward from the underside of the upper surface pad 41. The upper surface pad 41 (41A) of the heat sink 4, which is the base, may be rectangular as shown in Fig. 5A or circular. The protrusions may be cylindrical rod-shaped protrusions 42A as shown in Fig. 5B or planar protrusions (plate-shaped protrusions) 43 as shown in Fig. 5C.

[0035] The heat sink 4 having such a shape cools the Peltier element 3, so it is preferable that the heat sink 4 be in direct contact with the Peltier element 3 or in contact with the Peltier element via the substrate 50.

[0036] 4, the heat sink 4 is located below the Peltier element 3 so as to cool the Peltier element 3. The substrate 50 functions as a base so that the Peltier element 3, the heat sink, and the controller can be assembled into a single transportable unit.

[0037] In the temperature adjustment device 102, the four upper molding dies 1, the four outer cylinders 2, the Peltier element 3, the substrate 50, the controller 5, and the heat sink 4 are collectively referred to as an independent temperature control unit α.

[0038] The refrigerant tank 6 stores a refrigerant C for cooling the heat sink 4. In the case of a cooling system having a cooling unit 7, the first refrigerant C is preferably thermal grease with good thermal conductivity, but water, alcohol, ethylene glycol, polyhydric alcohol, or an aqueous solution of these may also be used. Within the refrigerant tank 6, part or all of the periphery of the lower ends of the protrusions 42, 42A, and 43 that form the comb-tooth portion of the heat sink 4 is immersed in the first refrigerant C.

[0039] The refrigerant tank 6 is made up of a side wall 61 and a bottom wall 62. The independent temperature control unit α can be transported and moved within the refrigerant tank 6 using casters 59 or the like installed on the base plate 50 on both sides of the refrigerant tank 6, as shown in Figure 6. Note that the transport method shown in Figure 6 is one example, and the transport method for the independent temperature control unit α of the present invention is not limited to this, and can also be transported by a Robo Cylinder, for example.

[0040] This structure enables the independent temperature control unit α to stably cool the heat sink 4 during transportation, and even if the lower part of the heat sink 4 is worn down during transportation, the heat sink 4 can be cooled without any problems.

[0041] A cooling unit 7 is formed below the refrigerant tank 6. The cooling unit 7 has a cooling path 71 and a housing 72. The housing 72 is provided with a water inlet path 73 and a water outlet path 74 on the front side, which are connected to the cooling path 71. A second refrigerant W to be cooled flows inside the cooling path 71, and the cooling path 71 is formed in a serpentine shape inside the cooling unit. The cooling unit 7 is cooled stably and uniformly by the second refrigerant W, which is preferably circulated through a metal plate with high thermal conductivity.

[0042] When the cooling unit 7 is provided, the heat sink 4 below the Peltier element 3 is cooled via the cooling unit 7 cooled by the second refrigerant W, the tank 6, and the first refrigerant C in the tank 6.

[0043] 4, an example in which the cooling unit 7 is provided has been described, but in the case where the first refrigerant C in the refrigerant tank 6 is circulated and cooled, the cooling unit 7 may not be provided. In the case where the cooling unit 7 is not provided and the first refrigerant C is circulated in the cooling tank, water, alcohol, ethylene glycol, polyhydric alcohol, and aqueous solutions of these, which have high specific heat and fluidity, are desirable because circulation is assumed.

[0044] Since the Peltier element 3 has the property that when one surface radiates heat, the other surface absorbs heat, it is preferable to cool the back surface when heating the top surface. Therefore, by cooling the bottom surface with refrigerant C, it is possible to help the top surface of the Peltier element 3 absorb heat when the temperature rises and to prevent the back surface from becoming too hot when the temperature drops.

[0045] Fig. 7 is a cross-sectional view showing the independent molding units lined up in the conveyance direction. In Fig. 7, multiple outer cylinders 2 surrounding multiple molding dies 1 are provided at a distance from each other and not in contact with each other. In this embodiment, an example is shown in which one Peltier element 3 is provided for four molding dies 1.

[0046] Since the Peltier elements 3 are also spaced apart from one another, the independent temperature control units α are also spaced apart from one another to prevent temperature interference between adjacent Peltier elements 3. As will be described later, the Peltier elements 3 change their set temperature depending on the time elapsed after filling, so the three Peltier elements 3 shown in Fig. 7 can also be set to different temperatures.

[0047] The temperature adjustment unit of the lipstick molding device in Figure 4 is explained as a cooling system using two types of refrigerant, but the temperature adjustment unit shown in Figure 7 has a heat sink 4 that is an air-cooled cooling mechanism, so no refrigerant is used.

[0048] Furthermore, in the temperature adjustment section of the lipstick molding device in Figure 4, an example is shown in which the power transmission device 500 that transmits temperature to the Peltier element is provided on the controller 5 on the substrate 50, but in the temperature adjustment section shown in Figure 7, the wireless power transmission device 500α that supplies power to the Peltier element 3 (element side controller) is provided below the heat sink 4 and the conveyor belt 65.

[0049] In this embodiment, the independent molding unit β is the portion of the independent temperature control unit α that is used to mold one lipstick, excluding the Peltier element 3 and the heat sink 4. These molding units β are also spaced apart from each other to prevent temperature interference.

[0050] 8A and 8B are explanatory diagrams of wired power transmission to the independent temperature control unit α, with FIG. 8A being an explanatory top view and FIG. 8B being an explanatory side view. To operate a program via the Peltier element 3, it is necessary to supply power to the Peltier element 3 and the controller 5. In the example shown in FIGS. 8A and 8B, power is supplied downward via a wire so that two rows of ten independent temperature control units α (α-11 to α-10, α-21 to α-20) and controllers 5 (5-11 to 5-10, 5-21 to 5-20) arranged side by side can be transported freely and safely while receiving power.

[0051] 8A and 8B show diagrams of wired power transmission, a program that can set an optimal cooling profile for the cosmetic composition to be applied may be transmitted wirelessly to the controller 5, in which case each independent control unit α can operate the program. For example, a wireless power transmission device is provided to the front side of the controller 5 in FIG. 4, and below it in FIG. 7.

[0052] In this embodiment, each of the four forming dies 1 provided in each independent temperature adjustment unit α has a rubber mold 11, a metal mold 12, and rubber holders 13 and 14.

[0053] The rubber mold 11 is an elastic mold made of silicone rubber, fluorosilicone rubber, or the like, which has a cylindrical recess and into which a lipstick composition (cosmetic composition) L of a lipstick (stick-type cosmetic) is directly filled.

[0054] The mold 12 is an example of a cylindrical heat transfer mold with a bottom that conducts heat and surrounds the side and bottom surfaces of the rubber mold 11. The heat transfer mold is made of a metal with good heat conductivity, such as copper or aluminum, or graphite.

[0055] Furthermore, in order to allow the lipstick composition L to be molded in close contact with a part of the dispensing container 8 when filling, the lifting cylinder 83, the outer spiral cylinder 82, and the outer cylinder 81, which are part of the dispensing container 8, are set above the independent molding unit α.

[0056] The inner holder 13 of the mold 1 surrounds and holds the elevator cylinder 83 that tightly holds the molded stick-shaped cosmetic material L and the spiral cylinder 82 that engages with the outside of the elevator cylinder 83, and also holds the rubber mold 11 between itself and the holder 14.

[0057] The outer holder 14 surrounds and grips the outer surface of the inner holder 13 to connect the mold 12 and the outer cylinder 2 .

[0058] In addition, in the example of Figure 7, the outer holder 14 is bent into an approximately L-shaped cross section, and a part of the outer holder 14 and the rubber mold 11 come into contact with the metal mold 12, thereby fixing the positions of the lifting cylinder 83 and the spiral cylinder 82.

[0059] In this embodiment, outer cylinder 2 , which is a holder portion surrounding casting mold 1 , has outer sidewall 21 and upper surface 22 .

[0060] 4 and 7, the multiple Peltier elements 3 are arranged so that they are wider in the horizontal direction than in the vertical direction, and the lower ends of the four molding dies 1 contact the upper surface of one Peltier element 3. Therefore, in this embodiment, each of the multiple Peltier elements 3 can heat or cool each of the four molding dies 1.

[0061] In this embodiment, the elevator cylinder 83 and spiral cylinder 82 are held by the rubber holders 13, 14, and with the outer cylinder 81 placed on top, the lipstick composition L is filled into each recess of each molding die 1 and the inside of each elevator cylinder 83, and then the temperature of the lipstick composition L inside the rubber mold 11 and the elevator cylinder 83 is adjusted by the Peltier element 3. By adjusting the Peltier element 3 to a predetermined temperature, the mold 12 is heated or cooled from below (bottom heating / bottom cooling), and the lipstick composition L is heated or cooled from below or from the side depending on the shape of the mold 12.

[0062] The ratio of the number of forming dies 1 to the number of Peltier elements 3 is not limited to 4:1, and it is sufficient that the number of Peltier elements 3 provided is 1 / n (n is a natural number of 2 or greater) to 1 / 1 of the number of forming dies 1. In this case, the upper surface of one Peltier element 3 is in contact with the lower ends of 1 to n forming dies 1 and outer cylinders 2, and each Peltier element of the multiple Peltier elements can heat or cool each of the 1 to n forming dies.

[0063] 4 and 7, the external cylinder 2 acts as an insulating cylinder that retains heat from the mold and prevents heat transfer to other molds, and conversely, it has a kind of insulating effect that prevents heat from other molds from affecting the mold inside the external cylinder, so by separating them from each other, temperature interference between adjacent molding dies 1 is prevented. Note that in this example, an example is described in which the same number of external cylinders 2 are provided for each molding die 1, but this is not necessary, and one external cylinder may be provided for multiple molding dies 1 as long as the temperatures of the molding dies do not interfere with each other (tenth and eleventh embodiments).

[0064] (manufacturing process) Fig. 9 shows the manufacturing process flow for the lipstick-containing dispensing container of the present invention. This manufacturing process shows the flow of the back-filling method. Figs. 10A to 10C are cross-sectional explanatory diagrams showing the position of the dispensing tube in the dispensing container during back-filling. Fig. 10A shows the position of the dispensing tube in the dispensing container when it is molded, Fig. 10B shows the position when the dispensing tube is retracted, and Fig. 10C shows the position when the cap is fitted.

[0065] The flow of the backfilling method according to the present invention will be described with reference to FIGS. 3A to 3E, 9, and 10A to 10C.

[0066] In step S1, the lifting cylinder (inner plate cylinder) 83, the spiral cylinder 82 and the outer cylinder (hemisphere cylinder) 81 are set in the forming mold 1 (as shown in FIG. 3A). Alternatively, only the lifting cylinder 83 is set in the forming mold.

[0067] In step S2, the forming mold 1 is preheated (see FIG. 3A).

[0068] In step S3, the mold 1 and the elevator cylinder 83 are filled with a lipstick composition (cosmetic composition) (see FIG. 3B).

[0069] In step S4, casting mold 1 is heated or cooled by adjusting the temperature of Peltier element 3 (FIGS. 3C and 3D).

[0070] These steps S3 and S4 constitute the lipstick forming process carried out by the lipstick forming device 100.

[0071] In step S5, the molded lipstick L, elevator cylinder 83, spiral cylinder 82, and outer cylinder 81 are removed from the mold 1. In other words, they are demolded. Alternatively, if only the elevator cylinder 83 has been set in the mold 1, in this step the spiral cylinder 82 and outer cylinder 81 are fitted into the elevator cylinder 83, and the molded lipstick L and elevator cylinder 83 are removed from the mold. After S5, an inspection step can be provided in which the molded lipstick is inspected.

[0072] That is, in steps S1 to S5, as shown in FIG. 10A, lipstick is formed in the dispensing container 8 with the lifting cylinder 83 of the spiral cylinder 82 in the extended state.

[0073] In step S6, the spiral tube (sleeve) 82 and the outer tube 81 are rotated relative to each other, and the lipstick is rolled back together with the lifting tube 83 to a position where at least the tip of the formed lipstick does not protrude from the upper end of the spiral tube 82 (see Figure 10B).

[0074] In step S7, the elevator cylinder 83, the spiral cylinder 82, and the outer cylinder 81 are engaged with other components to assemble the dispensing container 8. Note that in the back-filling method, this step is not necessary if the lipstick composition L is filled into the dispensing container 8 when all of the components are already assembled.

[0075] In step S8, the cap 89 is fitted onto the dispensing container 8, completing the manufacturing process (see FIG. 10C).

[0076] As shown in Figures 9 and 10A to 10C, in this embodiment using the back-filling method, the lipstick is formed by connecting a part of the dispensing container to a mold, so that apart from the part that controls the temperature after the lipstick is filled, the lipstick can be manufactured without any changes from the manufacturing method of a general dispensing container containing lipstick.

[0077] <First Configuration Example of the Mold of the First Embodiment> 11A to 11C are explanatory diagrams of an independent molding unit β1 having a mold according to a first configuration example of the first embodiment. Fig. 11A is a cross-sectional view of the independent molding unit β1 of the first configuration example, Fig. 11B is a top perspective view of the independent molding unit β1 of Fig. 11A with the outer tube 2A and Peltier element 3 removed, and Fig. 11C is a bottom perspective view of Fig. 11B.

[0078] In this embodiment, similar to FIG. 7, each molding die 1A is made up of a rubber mold 11, a metal die 12A, and holders 13A and 14A.

[0079] In this configuration example, the upper sides of holders 13A and 14A have linear portions 131 and 141, which do not come into contact with external tube 2A. The lower ends of holders 13A and 14A have retaining portions 132 and 142 that are bent inwardly into a hook-like cross section. Note that this embodiment shows external tube 2A and holders 13A and 14A with shapes different from those shown in FIG. 7.

[0080] 11A to 11C and the later-described FIGS. 12A to 12C and 13A to 13C show examples in which the outer tube 2A and holders 13A and 14A are common except for the shapes of the molds 12A and 12B, but these configurations may also be combined with the outer tube 2 and holders 13 and 14 of the configuration in FIG. 7.

[0081] The rubber mold 11 has a side surface 111, a bottom surface 112, a flange 113, and an annular upright protrusion 114. The side surface 111 and the bottom surface 112 form a bottomed tube into which the lipstick composition is directly filled. The flange 113 extends outward from the upper end of the side surface 111. The annular upright protrusion 114 rises upward and / or downward from the outer end of the flange 113. The configuration of the inner rubber mold 11 is the same in Figure 7, Figures 11A to 11C, Figures 12A to 12C, and Figures 13A to 13C.

[0082] In this configuration example, the mold 12A has a side surface 121, a bottom surface 122, and an upper-end annular groove 123. In this configuration, the underside of the bottom surface 122 of the mold 12A is in contact with the Peltier element 3, so that when heating and cooling, the temperature is transferred directly from the Peltier element 3 to the bottom surface 122. Furthermore, the side surface 121 of the mold 12A surrounds the side surface 111 of the rubber mold 11. Therefore, in this configuration example, the temperature is transferred from the Peltier element 3 below, and the rubber mold 11, whose entire bottom surface is in contact with the Peltier element 3, is heated and cooled from bottom to top, thereby heating and cooling the lipstick composition L from the bottom (lower heating and lower cooling).

[0083] It should be noted that P1 and P2 in FIGS. 11A and 12A indicate the upper and lower end positions of the lipstick when measuring the temperature in FIGS. 23A and 23B, which will be described later.

[0084] <Second Configuration Example of the Mold of the First Embodiment> 12A to 12C are explanatory diagrams of an independent molding unit β2 having a mold according to a second configuration example of the first embodiment. Fig. 12A is a cross-sectional view of the independent molding unit β2 of the second configuration example, Fig. 12B is a top perspective view of the independent molding unit β2 of Fig. 12A with the outer tube 2A and Peltier element 3 removed, and Fig. 12C is a bottom perspective view of Fig. 12B.

[0085] In this configuration example, the mold 12B has a double-cylinder configuration, and is configured to include a gripping cylinder 124, an outer heat transfer cylinder 125, and a connecting portion 126.

[0086] The gripping tube 124 is a bottomed tube having side surfaces 124a and a bottom surface 124b that surrounds the side surfaces 111 and bottom surface 112 of the rubber mold 11, and the gripping tube 124 is shorter than the outer heat transfer tube 125 so that the underside of the bottom surface 124b is not in contact with the Peltier element 3, and the bottom surface 124b of the gripping tube 124 does not directly touch the Peltier element 3. In other words, a lower bottomed cylindrical space 127 that rises from the underside is formed between the gripping tube 124 and the outer transfer tube 125, and the center of the lower part of the mold 12B does not directly touch the Peltier element 3.

[0087] In this configuration, the side surface 124a of the gripping tube 124 of the mold 12B surrounds the side surface 111 of the rubber mold 11, so that the heating and cooling temperatures are also transmitted from the circumferential direction of the lipstick, performing lateral heating and lateral cooling.

[0088] The outer heat transfer cylinder 125 is a cylinder portion that surrounds the gripping cylinder 124 at a distance from the outer surface of the gripping cylinder 124 and has a lower end that contacts the Peltier element 3. The outer periphery of the outer heat transfer cylinder 125 contacts the inner periphery of the outer cylinder 2A.

[0089] The connecting portion 126 connects the vicinity of the upper end of the gripping cylinder 124 to the vicinity of the upper end of the outer heat transfer cylinder 125 .

[0090] In this configuration, the lower end of the gripping tube 124 that grips the lipstick is not in contact with the Peltier element 3, so the lipstick is not heated directly from below. Instead, heat from the Peltier element 3 is transmitted through the lower space of the lower bottomed cylindrical space 127, and the gripping tube 124 is indirectly cooled from the lower end. Furthermore, the heat transferred from the Peltier element 3 is transferred from the top to the bottom of the gripping tube 124 through the outer heat transfer tube 125 and the connecting portion 126 at the upper end, so it is possible to rapidly cool the portion of the lifting tube 83 that grips the lipstick prior to cooling the tip of the lipstick. Therefore, in this configuration example, temperature is transferred from the lower Peltier element 3, and the side surface 111 of the rubber mold 11 is heated and cooled from top to bottom by the side surface 124a of the gripping tube 124 that surrounds the periphery, without the central bottom surface coming into contact with the Peltier element 3, so that the lipstick composition L is heated and cooled from the side (side heating and side cooling).

[0091] <Third Configuration Example of the Mold of the First Embodiment> Fig. 13A is an explanatory diagram of an independent molding unit β3 having a mold according to a third configuration example of the first embodiment. Fig. 13A is a cross-sectional view of the independent molding unit β3 of the third configuration example, Fig. 13B is a top perspective view of the independent molding unit β3 of Fig. 13A with the outer tube 2A and Peltier element 3 removed, and Fig. 13C is a bottom perspective view of Fig. 13B.

[0092] In this configuration example, the mold 12C has a cylindrical shape with a bottom, and like the mold 12A, has a side surface 121C, a bottom surface 122C, and an upper-end annular groove 123. However, in this configuration example, the bottom surface 122C is thinner than in FIG. 11A, and the lower part of the inner surface of the side surface 121C is thinner and wider than in FIG. 11A. As a result, an upper bottomed cylindrical space 128 is formed above the bottom surface 122C, which serves as a gap with the rubber mold 11. Therefore, the side surface 121C of the mold 12C contacts the upper side surface 111a of the side surface of the rubber mold 11, but does not contact the lower side surface 111b. Furthermore, the bottom surface 122C does not contact the bottom surface 112 of the rubber mold 11.

[0093] In this configuration, the contact area between the bottom 122C of the mold 12C and the Peltier element 3 is larger than that of the mold 12B, resulting in excellent heat transfer efficiency. On the other hand, the bottom surface 112 of the rubber mold 11 is not in contact with the mold 12C, so it is heated and cooled from the upper side surface 111a of the rubber mold 11 that is in contact with the mold 12C, thereby performing lateral heating and lateral cooling.

[0094] In this configuration, the lower end of the rubber mold 11 that holds the lipstick is not in contact with the bottom surface 122C of the mold 12C, so it is not heated or cooled directly from below, but rather the heat from the Peltier element 3 is transmitted through the mold 12C and the upper bottomed cylindrical space 128, and the rubber mold 11 is heated or cooled indirectly from the lower end.

[0095] Because air has very poor thermal conductivity, in this configuration, heat is transferred not from the bottom end but through the upper side surface 111a with which the side surface 121C comes into contact, making it possible to rapidly cool the portion of the elevator cylinder 83A that grips the side surface of the lipstick before the lower tip of the lipstick. Therefore, in this configuration example, temperature is transferred from the lower Peltier element 3, and the bottom surface 112 and lower side surface 111b of the rubber mold 11 are heated and cooled from the upper side surface 111a of the rubber mold 11 without coming into contact with the mold 12C, so that the lipstick composition L is heated and cooled from the side surface (side heating and side cooling).

[0096] <Temperature distribution by side cooling> Here, the temperature distribution and shrinkage direction of bottom cooling and side cooling will be explained using Figures 14A to 14D. Figure 14A is a diagram showing the temperature distribution of a lipstick composition when heated from above using hot air and cooled from below in the general molding flow of Figure 1, and Figure 14B is a diagram showing the shrinkage direction of the lipstick molded in Figure 14A. Figure 14C is a diagram showing the temperature distribution of a lipstick composition when heated from above using hot air and cooled from the side, and Figure 14D is a diagram showing the shrinkage direction of the lipstick molded in Figure 14C.

[0097] The dotted arrows in Figures 14B and 14D indicate the direction of contraction of the lipstick L due to cooling. When cooled from below as in Figure 14A, the lipstick composition contracts downward as in Figure 14B, causing a contraction opening at the top end.

[0098] In contrast, when cooled from the side as shown in Figure 14C, the lipstick composition cools and solidifies from the side first, reducing internal strain in the vertical direction and making it possible to reduce the size of the shrinkage hole at the top. Also, because the horizontal direction is shorter than the vertical direction, the temperature difference between the top and bottom of the lipstick is smaller, making it possible to reduce internal strain in the horizontal direction.

[0099] On the side is an elevator cylinder, which is an inner tray that secures the lipstick to the container, and by rapidly cooling this, it is possible to make the crystalline structure of the wax finer. Compared to Figure 14A, this reduces the temperature difference between the top and bottom of the lipstick composition, which is expected to increase the overall strength. As a result, shrinkage holes are less likely to occur.

[0100] Furthermore, with side cooling, solidification occurs from the sides, which means that air is likely to enter after molding, as shown in Figure 14D. Therefore, when removing the solid from the mold after spine formation, the air-in effect is expected to have a stress-relieving effect on the solid molded product, making it easier to remove.

[0101] (Experimental example) The inventors of the present application conducted molding experiments using bottom cooling and side cooling to verify the temperature distribution and shrinkage tendency shown in FIGS. 14A to 14D.

[0102] Figure 15 is a table showing the experimental results of shrinkage holes in lipstick molding using bottom cooling and side cooling with air blowing, which are comparative examples. Six lipsticks, No. 1 to No. 6, were filled with lipstick at the same filling and cooling temperatures and cooled using different cooling methods.

[0103] In Figure 15, three pipes, No. 1 to No. 3, are examples of temperature control using hot and cold air from below, and three pipes, No. 4 to No. 6, are examples of temperature control using hot and cold air from the side, simulating the temperature control of the present invention.

[0104] In Fig. 15, high and low reheat temperatures indicate high to low hot air temperatures. Also, in the degree of shrinkage holes shown in Fig. 15, ○ means no holes, △ means there are holes of 2 to 3 mm but no problems, and × means there are large holes of 4 mm or more.

[0105] Generally, the lower the reheating temperature, the more likely it is that shrinkage holes will form. As shown in No. 6, the lower the reheating temperature (heating the base of the lipstick), the more significantly shrinkage holes were reduced when cooling from the side compared to bottom cooling in No. 3.

[0106] 16 is a table showing the experimental results of the hardness and breakage resistance of lipstick molded using bottom cooling and side cooling with air blowing, which are comparative examples. Three samples, No. 7 to No. 9, are comparative examples in which the temperature was controlled by hot and cold air blowing from below, while three samples, No. 10 to No. 12, are examples that mimic the present invention in which the temperature was controlled by hot and cold air blowing from the side.

[0107] In Figure 16, breakage resistance was determined by a contact friction test of the formed lipstick to evaluate breakage resistance, with those that did not break under the same conditions being marked with a circle and those that did break being marked with an X. The variation in hardness is also shown as the ratio of the hardness of the tip divided by the hardness of the base.

[0108] As can be seen from the table in Figure 16, side cooling, in which lipstick was filled and cooled using different cooling methods under the same filling and cooling temperatures, resulted in less overall variation in hardness than bottom cooling (No. 10 to No. 12).

[0109] Furthermore, when comparing No. 12, which had particularly reduced variation, with No. 9, which had the same conditions except for the cooling method, the resistance to breakage was significantly improved.

[0110] From the experiments in Figures 15 and 16, as predicted in Figures 14A to 14D, it can be said that the expected effects of lateral cooling are (1) reduction of shrinkage holes, and (2) reduction of variations in hardness and less breakage because the lipstick solidifies from the base, as opposed to conventional cooling from the bottom, which solidifies from the tip of the lipstick (rouge tip).

[0111] <About temperature cooling> Here, Figure 17 shows a table showing the properties of lipstick when cooled rapidly and slowly. As shown in Figure 17, in general, when there is a lot of strain and the crystals are large, the hardness is low. On the other hand, when there is little strain and the crystals are small, the hardness is high.

[0112] Therefore, in the process, if rapid cooling is performed to make the crystals smaller, the distortion will increase, and if slow cooling is performed to make the distortion smaller, the crystals will increase.

[0113] Therefore, the key to temperature control is how to optimize these conflicting phenomena. In other words, it is preferable to determine which temperature ranges should be cooled rapidly and which should be cooled slowly, and to optimize the temperature control process.

[0114] The present invention controls temperature using a Peltier element, and therefore allows for more flexible temperature control than when temperature is controlled using hot or cold air, without adding any additional equipment or changing the arrangement of the equipment.

[0115] <Cooling temperature optimization> Therefore, the inventors of the present invention conducted comparative experiments on crystals with two different temperature transitions in order to optimize the temperature control process.

[0116] Fig. 18 shows temperature transitions in experiments using rapid cooling temperature pattern 1 and slow cooling temperature pattern 2. In Fig. 18, temperature pattern 1 is a temperature pattern in which rapid cooling is performed from the start to the end of cooling, and temperature pattern 2 is a temperature pattern in which rapid cooling is performed from the start to the middle of cooling, the temperature is once raised, the temperature is slowly cooled, and then the temperature is rapidly cooled again.

[0117] Figure 19 shows a micrograph of lipstick crystals taken under quenching temperature pattern 1 in Figure 18. In Figure 19, t11 shows the crystalline state at 76°C during quenching, and t12 shows the crystalline state at 37°C after quenching is complete. In the uniform quenching cooling pattern of temperature pattern 1, many crystal nuclei appear as the crystals are rapidly cooled to the crystal precipitation temperature, as shown by t12 in Figure 19. Furthermore, at the end of cooling, as shown by t12 in Figure 19, crystals grow from the crystal nuclei formed immediately after the start of cooling, as shown by t11 in Figure 19, and it can be seen that the size of the crystals is determined by the number of crystal nuclei.

[0118] Figure 20 shows micrographs of lipstick crystals in each process under the quenching temperature pattern 2 in Figure 18. In the temperature pattern 2 shown in Figure 18, the product is quenched from 90°C to 72°C (first quenching), then heated to 77°C, maintained at 77°C for 30 minutes, then slowly cooled to 60°C (gradual cooling), and then cooled to 37°C at the same temperature gradient as in the temperature pattern 1 (second quenching).

[0119] In FIG. 20, t21 indicates the crystalline state at 76°C during rapid cooling, t22 indicates the crystalline state at 72°C when rapid cooling is completed, t23 indicates the crystalline state at 77°C immediately after heating, t24 indicates the crystalline state after maintaining 77°C for 30 minutes after heating, and t25 indicates the crystalline state at 37°C when slow cooling is completed.

[0120] In the rapid cooling of temperature pattern 2, the crystal precipitation region is rapidly cooled from t21 to t22 in Figures 18 and 20, which reduces the crystal size and maintains the number of crystal nuclei. Then, from t22 to t23, the temperature is raised to a temperature just before the complete melting temperature.

[0121] Next, by maintaining the temperature just before the complete melting temperature from t23 to t24, the temperature of the tip and root is made uniform without changing the crystal nucleus.

[0122] Furthermore, by reproducing the process of slow cooling and rapid cooling after uniform solidification from t24 to t25, it can be seen that the size of the precipitated crystals remains small and they grow.

[0123] Comparing the photograph at t12 in Figure 19 with the photograph at t25 in Figure 20, it can be seen that the control with cyclic cooling using Temperature Pattern 2, despite the conditions under which distortion is reduced due to uniform solidification, results in the formation of a stick-shaped cosmetic material that is resistant to breaking, with no difference in crystal size due to rapid cooling in the temperature range where the crystalline structure is formed.

[0124] In this way, with temperature pattern 2, the crystal size is reduced by rapidly cooling the temperature range where the crystal structure is formed, and distortion can be eliminated by returning the temperature to just before complete melting and then slowly cooling it.

[0125] (Temperature control example of the present invention) Next, the temperature control of the present invention, in which the temperature control process is optimized, will be described with reference to temperature pattern 2 of FIG. 18, using FIGS. 21 and 22. FIG.

[0126] Fig. 21 shows an example of cosmetic temperature settings and temperature transitions at the tip and base of the lipstick composition when temperature control is performed using cyclic cooling using the independent molding unit β1 of the first configuration example shown in Fig. 11A. Fig. 22 shows the temperature control flow during lipstick molding in the present invention.

[0127] The temperature control flow for solidifying the cosmetic composition of the present invention will be described with reference to FIGS. 21 and 22.

[0128] In S51, the temperature of the Peltier element 3 is lowered from the filling temperature to a first temperature (first rapid cooling). The first temperature is set to a temperature below the wax crystal precipitation temperature, that is, a temperature just before the complete melting temperature.

[0129] In S52, the temperature of the Peltier element 3 is maintained at the first temperature for a predetermined period of time. The cooling in S51 and S52 is a process of provisionally cooling the molten raw material in the mold to the first temperature, which is a predetermined solidification temperature.

[0130] In S53, the temperature of the Peltier element 3 is increased to a second temperature that is lower than the filling temperature.

[0131] In S54, the temperature of the Peltier element 3 is maintained at the second temperature for a predetermined period. S53 and S54 are reheating steps, and this second temperature is set to a temperature at which the raw material does not melt again, i.e., the wax crystal precipitation start temperature.

[0132] In S55, the temperature of the Peltier element 3 is gradually decreased (gradual cooling) from the second temperature to a third temperature, which is set to a temperature equal to or lower than the wax crystallization temperature.

[0133] In S56, the temperature of the Peltier element 3 is maintained at the third temperature for a predetermined period of time.

[0134] In S57, the temperature of the Peltier element 3 is decreased from the third temperature to the final cooling temperature (second rapid cooling). The final cooling temperature is set to a temperature at which the solidified raw material is completely solidified.

[0135] In S58, the temperature of the Peltier element 3 is maintained at the final cooling temperature for a predetermined period, and then this flow is ended.

[0136] Here, by setting the first temperature lower than the crystal precipitation temperature and rapidly cooling, it becomes possible to generate fine crystal nuclei.

[0137] In steps S55 to S57, cyclic cooling is performed in which the temperature is gradually lowered from the second temperature to the final cooling temperature with a period of time in between at a third temperature closer to the second temperature.

[0138] In the present invention, the temperature of the Peltier element that adjusts the temperature of the molding die is directly adjusted, so no special additional equipment for heating or cooling is required, and the number of heating and cooling steps can be increased.

[0139] By performing stepwise cyclic cooling in this manner, the slow cooling time can be adjusted.

[0140] Furthermore, as shown in the graph in the figure, the temperature regulation of the lipstick composition by the Peltier element of the present invention can be controlled according to a programmed operation, and the temperature of the tip and base of the lipstick composition can be changed in accordance with the set temperature of the Peltier element.

[0141] <Temperature transition by body part> 23A and 23B are diagrams showing temperature transitions at different locations of a stick-type cosmetic material when the temperature is controlled by Peltier control in the first and second configuration examples shown in FIGS. 11 and 12.

[0142] 23A is a graph showing temperature transitions in the first configuration example of FIG. 11, and FIG. 23B is a graph showing temperature transitions in the second configuration example of FIG.

[0143] As an initial condition, the Peltier element 3 is set to 90°C, and the lipstick composition L, the elevator cylinder 83, and the rubber mold 11 are heated in advance so that their temperatures reach 90°C. Then, starting 10 seconds after the start, the Peltier element 3 is cooled from 90°C to -10°C over 90 seconds. The solid lines in Figures 23A and 23B show the change in the set temperature of the Peltier element 3.

[0144] At this time, the temperature at a position 2 mm from the top end (position P1 in Figures 11A and 12A) was measured as the top end temperature of the lipstick composition, and the temperature at a position 2 mm from the bottom end (position P2 in Figures 11A and 12A) was measured as the bottom end temperature. The gray lines in Figures 23A and 23B indicate the top end temperatures of the lipstick composition, and the dotted lines indicate the bottom end temperatures of the lipstick composition.

[0145] Comparing the graphs of Figures 23A and 23B, in both graphs, the upper and lower end temperatures of the lipstick composition drop to follow the set temperature of the Peltier element 3, so that whichever configuration of mold 12A, 12B is used, temperature can be controlled by the Peltier element 3.

[0146] 12 shown in Figure 23B, there is almost no difference between the upper and lower end temperatures, and both the upper and lower end temperatures are cooled slightly later than the set temperature. Therefore, by rapidly cooling the area around the center plate of the lipstick first, it is expected that the size of distortion (shrinkage holes, etc.) around the center plate will be reduced and the crystal size at the base will be reduced, thereby increasing the strength of the lipstick.

[0147] On the other hand, as shown in the graphs of Figures 23A and 23B, while the temperature of the Peltier element 3 was controlled to reach 0°C in approximately 82 seconds from 10 seconds after the start, Figure 23A shows that the bottom end of the lipstick reached 0°C in approximately 83 seconds and the top end of the lipstick reached 0°C in approximately 89 seconds, while Figure 23B shows that both the bottom and top ends of the lipstick reached 0°C in approximately 93 seconds.

[0148] 11 used in Fig. 23A has less delay in the temperature of the lipstick composition L transmitted from the temperature of the Peltier element 3 than the configuration example of Fig. 12 used in Fig. 23B. This is thought to be because mold 12A shown in Fig. 11 covers the entire inside area of ​​the outer tube 2, and therefore has a larger contact surface with the Peltier element 3 than mold 12B, which only partially covers the inside of the outer tube 2, resulting in better transmission efficiency.

[0149] Therefore, in the present invention, if it is desired to mold lipstick in a shorter time and with less electrical energy, it is preferable to select mold 12A of the first configuration example, which has less transmission delay, and if it is desired to minimize distortion at the top and bottom positions of the lipstick when molding the lipstick, it is preferable to select mold 12B of the second configuration example.

[0150] In both the first configuration example shown in Fig. 11A and the second configuration example shown in Fig. 12A, the present invention directly controls the temperature using the Peltier element 3, and therefore the heating and cooling time is shorter than the control using air in the comparative experiments shown in Figs. 14A to 16. Therefore, the difference in distortion and characteristics that occurs when comparing the first configuration example, which is a bottom cooling method, and the second configuration example, which is a side cooling method, is smaller than the difference in characteristics between bottom cooling and side cooling using air.

[0151] Here, FIGS. 24A to 24C show the heat flow in the molds in the independent molding units β1 to β3 of the first embodiment.

[0152] In the independent molding unit β1 of the first configuration example, as shown in FIG. 24A, the mold 12A is in close contact with the Peltier element 3 and the rubber mold 11, so that heat is transferred directly from the bottom up.

[0153] In the independent molding unit β2 of the second configuration example, as shown in FIG. 24B, the mold 12B has a lower bottomed cylindrical space 127 formed therein, and therefore the center of the bottom of the mold 12B is not in contact with the Peltier element 3. Therefore, heat first rises to the outer part of the mold 12B, and then spreads up and down through the inner part, and is transferred to the rubber mold 11.

[0154] In the independent molding unit β3 of the third configuration example, the entire lower surface of the mold 12C is in contact with the Peltier element 3, but due to the formation of the upper bottomed cylindrical space 128, the upper surface of the bottom of the mold 12C is not in contact with the rubber mold 11. Therefore, as shown in Figure 24C, heat is transferred from the mold 12C to the rubber mold 11 from bottom to top, and also from the side. In this configuration, because there is air between the mold 12C and the rubber mold 11 on the bottom side, heat is transferred slowly from below in addition to the direction indicated by the arrows in Figure 24C.

[0155] Figure 25 shows the results of an experiment on the size of shrinkage holes and ease of breakage of lipsticks formed using the independent molding units β1, β2, and β3 of the first, second, and third configuration examples. As shown in the table in Figure 25, there were no problems with shrinkage holes for β1, β2, and β3.

[0156] The table in Figure 25 also shows the breakage strength as a numerical value for the hardness and breakability of the base portion. The hardness of the base portion shown in Figure 25 is the hardness (unit: N: Newton) measured by inserting a hardness meter into the center of the cut surface of the base portion cut at the base portion indicated by the dashed lines in Figures 24A, 24B, and 24C. The breakage strength is the numerical value (unit: N) measured when a force is applied to the lipstick horizontally in space in a direction perpendicular to the stretching direction and the lipstick breaks.

[0157] As shown in Figure 25, the hardness of the base of the lipstick formed in the third configuration example β3 is higher than that of the first configuration example β1 and the second configuration example β2. Both β2 and β3 are configuration examples of lateral cooling in which heat is propagated laterally. However, in β2, as shown in Figure 24B, the contact area of ​​the mold 12B with the Peltier element 3 at the lower end of the outer heat transfer cylinder 25 is small, resulting in a small heat absorption effect. In contrast, in the mold 12C of β3, the entire bottom surface 122C is in contact with the Peltier element 3, resulting in a high heat absorption effect. Furthermore, in the mold 12B of β2, heat transferred from the outer heat transfer cylinder 25 is transferred to the top and bottom of the gripping cylinder 124 and rubber mold 11 via the connecting portion 126 at the upper end. However, in β3, as shown in Figure 24C, the contact area of ​​the side surface 121C, through which heat is transferred from below, is large, resulting in a wider area of ​​uniform heat transfer to the rubber mold 11 from the side. Due to this characteristic, it is thought that lipstick formed with the β3 structure has high root hardness.

[0158] Furthermore, even though the hardness of the base of the lipstick formed using β1 and β2 is the same, the breaking strength is high, with β1 < β2 < β3. Here, as shown by the arrows in Figures 24A, 24B, and 24C, β2 and β3 are lateral cooling methods in which heat is transmitted from the side, while β1 is bottom cooling, in which heat is transmitted from below. Therefore, even when controlled using a Peltier element, lateral cooling can be said to be a molding method that is resistant to breaking.

[0159] <Controller configuration> Next, the control block of the lipstick molding device 100 of the present invention will be described with reference to FIG. The controller 5 shown in FIG. 26 is an element-side control unit, and is capable of communicating with the main control device 200 of the lipstick molding device 100.

[0160] The main control device 200 is capable of wireless communication with the controller 5 or is connected by wire, and the input device 300 in the main control device 200 receives input of information on the type of lipstick product to be manufactured (color, brand, etc.), the number of units to be manufactured, and the temperature profile for each independent temperature control unit for each product.

[0161] The main control device 200, which is the main control unit, is capable of executing a conveying speed control unit 201, a pre-filling temperature control unit 202, a filling control unit 203, a post-filling temperature control unit 204, a second refrigerant circulation speed control unit 205, a control data storage unit 206, and a communication I / F (interface) 207, etc.

[0162] The conveying speed control unit 201 adjusts the moving speed of the conveyor belt 65 for the independent temperature adjusting unit α.

[0163] The pre-filling temperature control unit 202 adjusts the temperature of the lipstick composition inside the lipstick composition filling device 101 before filling, i.e., the temperature when the lipstick composition is heated and melted and the melted lipstick composition is filled into the mold.

[0164] The filling control section 203 adjusts the filling amount, filling speed, filling position, etc. of the lipstick composition L filled from the lipstick composition filling device 101 into the mold 1 .

[0165] Post-filling temperature control section 204 adjusts the temperature of the lipstick composition inside mold 1 after filling, that is, the temperature of molding conditions other than the Peltier temperature profile, such as reheating, after the lipstick composition has been filled into the mold.

[0166] The control data storage unit 206 stores a table of a plurality of set conditions, such as conveying speed, product type, production quantity on the line, outside temperature, humidity, refrigerant temperature, filling temperature, and molding temperature.

[0167] Here, an outside air temperature sensor 98 for measuring the outside air temperature and a humidity sensor 99 for measuring the humidity may be provided in the container filling molding manufacturing apparatus 9. The outside air temperature sensor 98 and humidity sensor 99 are environmental sensors.

[0168] The post-filling temperature control unit 204 of the main control device 200 reads out a table of setting conditions according to the outside air temperature and humidity measured by the environmental sensors 98, 99 from the control data storage unit 206, and instructs the temperature change of the Peltier element 3 after filling.

[0169] Furthermore, second refrigerant circulation speed control unit 205 adjusts the circulation speed of second refrigerant W in cooling path 71. Here, a refrigerant temperature sensor 97 may be provided to measure the temperature of first refrigerant C in refrigerant tank 6. In this case, second refrigerant circulation speed control unit 205 may adjust the circulation speed of second refrigerant W according to the temperature of first refrigerant C in refrigerant tank 6 detected by refrigerant temperature sensor 97.

[0170] The communication I / F 207 transmits and receives data and instructions to and from the controller 5, which is an element-side control unit.

[0171] The controller 5, which is an element-side control unit, has a communication I / F 51, a temperature control unit 52, and a heating / cooling unit 53. The communication I / F 51 transmits and receives data to and from the main control device 200.

[0172] Although not shown above, a Peltier element temperature sensor 39 that detects the temperature of the Peltier element 3 or a part of the mold 12 in real time may be provided near the Peltier element 3.

[0173] The temperature control section 52 of the controller 5 can finely adjust the temperature of the Peltier element 3 based on a temperature instruction from the main control device 200 and further in accordance with the temperature detection result of the Peltier element temperature sensor 39 .

[0174] The heating / cooling unit 53 controls the temperature of the Peltier element 3 by applying to the Peltier element 3 a current (current direction and current value) according to the set temperature.

[0175] With this configuration, the main control device 200 can control the temperature after filling based on the outside air temperature, humidity, conveying speed, and the number of products being produced on the line. This allows for precise temperature control taking into account factors that affect lipstick molding, resulting in fewer defective products, higher productivity, and stable, high-quality molding that is not affected by the formulation or environment.

[0176] Furthermore, as shown in Figure 4 above, the temperature of the mold 1 and outer cylinder 2 surrounding the lipstick composition L are controlled by independent Peltier elements, so there is little temperature interference between them, eliminating the problem of the composition cooling easily during testing because a small number of products are produced, and cooling more slowly during mass production because a larger number of products are produced, i.e., there is almost no difference in temperature between prototypes and mass production. Therefore, such precise temperature control minimizes the difference between prototypes and mass production, and prototype conditions can be applied directly to mass production conditions.

[0177] Furthermore, since a controller 5 is provided for each Peltier element, abnormalities can be detected immediately, and only the molded products molded by the independent temperature control unit α in which an abnormality occurred can be rejected as defective, reducing the defect rate and improving productivity. Also, because temperatures are controlled individually, an efficient line configuration can be made according to the number of products to be produced.

[0178] In this way, by utilizing sensing and IoT technologies, it becomes possible to move away from manufacturing that relies on intuition, skill, and experience.

[0179] In this embodiment, the molding chambers and the outer cylinder are spaced apart as shown in Fig. 4, which allows uniform temperature control for each of the multiple molds. In the above example, a configuration was described in which thermal interference between the molds is suppressed by keeping them apart and warm, but thermal interference may also be suppressed by making the outer cylinder thermally insulated, as in the ninth and tenth embodiments described below.

[0180] Furthermore, since it is essential for quality assurance that lipstick does not break, there is a demand for lipstick that does not break (i.e., is strong) even with a small amount of wax. Therefore, by controlling the temperature of each lipstick in accordance with the surrounding environment in this way, it is possible to control strain and crystal size and form lipstick that is less likely to break.

[0181] In this way, the cosmetic molding device of the present invention can independently control the temperature of the molds into which the cosmetic composition is filled, and can control the strain and crystal size of the cosmetic composition in each of the multiple molds and within a single mold, regardless of the number of cosmetics to be molded. This allows for the production of lipstick that is less likely to break while maintaining its good spreadability, moisture, and color retention by reducing the amount of wax.

[0182] Second Embodiment 27 is a cross-sectional view of the independent molding unit β4 in the second embodiment. The independent molding unit β4 in this embodiment is used in a molding method using the back-filling method.

[0183] In the independent molding units β1 to β3 of the first embodiment described above, the outer tube 81 and spiral tube 82 of the lipstick container are set upward, and the outer tube 81 and spiral tube 82 are molded integrally with the lipstick, but only the lifting tube (inner tray tube) 83D, which is a lifting tray that fixes the lipstick and moves up and down together with the lipstick, may be used for molding.

[0184] With the elevator cylinders 83D placed above, lipstick composition L is filled into each recess of each casting mold 1D and the inside of each elevator cylinder 83D.

[0185] In the configuration of this embodiment, only the elevator tube 83D, which is shorter and thinner than the spiral tube 82, exists above the mold 12D, so heat can be conducted from the surrounding area via the heat transfer holder 15, the elevator tube 83D, and the rubber mold 11D to the lipstick composition L inside the elevator tube 83D.

[0186] The thus formed lipstick L and the elevator cylinder 83D are then engaged with the spiral cylinder 82 and the outer cylinder 81.

[0187] <Third embodiment> 28 is a cross-sectional view of the independent molding unit β5 in the third embodiment. The independent molding unit β5 in this embodiment is used in a molding method using the back-filling method.

[0188] In the first and second embodiments, examples have been described in which the rubber mold 11 is provided inside the heat-conductive metal mold 12, but it is not necessary to provide a rubber mold as the molding cylinder.

[0189] In this embodiment, each molding die 1 is formed by a single mold 12E, which is a cylindrical, heat-transfer mold with a bottom, into which a cosmetic composition in the form of a stick-type cosmetic product is directly filled. In this embodiment, the inner peripheral surface of the mold 12E is subjected to a surface treatment to prevent the cosmetic composition from adhering.

[0190] Here, as in the first embodiment, providing a rubber mold 11 increases the freedom in the shape of the lipstick, and depending on the shape of the rubber mold, it is possible to form convex or concave patterns such as logos or designs on the top or side of the lipstick, or to give the lipstick an outer shape that is different from a cylindrical mold, such as a polygonal heart-shaped cross section.

[0191] In contrast, in this embodiment, no rubber mold is provided, so the freedom in the shape of the lipstick is reduced, but in cases where a pattern or the like is not necessary and the shape of the lipstick to be molded can be the same as the inner peripheral surface of the mold, the number of parts can be reduced. Furthermore, with this configuration, temperature can be transmitted directly from mold 12E to lipstick composition L, and because it is not transmitted through a rubber mold with low thermal conductivity, it is possible to speed up the response of the Peltier element to the temperature and shorten the molding time.

[0192] In this embodiment, since a rubber mold is not provided, air holes 129 for injecting air are formed in the bottom surface 122E at the lower end of the mold 12E so as to be electrically connected vertically, and when the molded lipstick is removed from the mold, air is injected into the air holes 129 to release it from the mold.

[0193] Therefore, it is preferable to select whether or not to use a rubber mold depending on the characteristics of the lipstick to be molded and whether or not a design is required.

[0194] In this example, an example has been described in which the lifting cylinder 83A, the spiral cylinder 82A, and the outer cylinder 81A are set on the upper side of a molding die without a rubber mold and formed integrally, but the molding die of this embodiment, which is only a metal mold, may also be applied to a configuration in which only the lifting cylinder 83A is set on the upper side and formed integrally, as in the second embodiment.

[0195] Figures 29A to 29D are diagrams illustrating examples of common lipstick shapes: Figure 29A shows a bullet-shaped lipstick shape, Figure 29B shows a slim lipstick shape, Figure 29C shows a crayon-shaped lipstick shape, and Figure 29D shows a spatula-tipped lipstick shape.

[0196] Generally, when no special processing is required on the lipstick side or tip, such as the slim type (medium-cylinder type) shown in FIG. 29B or the crayon type shown in FIG. 29C, the third embodiment shown in FIG. 28 can be used to form the lipstick without using a rubber mold.

[0197] On the other hand, rubber molds can be used to decorate the body or tip of bullet-shaped pens as shown in Fig. 29A or spatula-shaped pens as shown in Fig. 29D. Rubber molds can also be used to decorate the tip of slim pens as shown in Fig. 29B.

[0198] Therefore, a configuration in which a rubber mold is provided only on the tip portion will be described below as a fourth embodiment.

[0199] <Fourth embodiment> 30 is a cross-sectional view of the independent molding unit β6 in the fourth embodiment. The independent molding unit β6 in this embodiment is used in a molding method using the back-filling method.

[0200] In this embodiment, the lipstick composition is filled and molded into the feeding container with the sleeve (spiral tube 82F) inserted deep inside. That is, in this configuration, the lipstick composition is heated and cooled while contained in the sleeve during filling and temperature adjustment, and therefore, on the independent molding unit side, the tip rubber mold 16 is provided only on the lower end of the recess and its surrounding area.

[0201] <<Insert filling>> Figures 31A to 31F are explanatory diagrams of the molding process of a stick-shaped cosmetic material using the insert and fill method of the present invention. Figure 32 is an overall view of a lipstick molding device using the insert and fill method included in an apparatus for manufacturing lipstick-containing dispensing container-filled molded products.

[0202] 31A to 31F show the insert filling method, which differs from the bag filling method of Figures 3A to 3E in that lipstick is formed without attaching outer tube 81 or spiral tube 82 to the cosmetic material. In the insert filling method, an insert part 94 is inserted above mold 1 instead of elevator tube 83.

[0203] In the insert and fill method of the present invention, the manufacturing process for stick-shaped cosmetics involves heating and melting (preheating) the material (Fig. 31A), pouring the cosmetic composition into a mold (Fig. 31B), reheating using a Peltier element 3 (Fig. 31C), and cooling and solidifying (Fig. 31D). After that, while heating, the insert part 94 is removed (Fig. 31E), and the outer tube 81, spiral tube 82, and lifting tube 83 are attached in an extended state (Fig. 31F), and the molded stick-shaped cosmetic is removed from the mold 1 and molded (Fig. 31G).

[0204] 31A to 31F, unlike the conventional example shown in FIG. 1, the temperature profile can be freely set during cooling and solidification, such as cyclic cooling using Peltier element 3, rapid cooling, or slow cooling, instead of wind.

[0205] As shown in FIG. 32, a lipstick molding device 100 of the present invention is an example of a cosmetic molding device, and is a part of an apparatus 9 for manufacturing lipstick-containing dispensing container-filled moldings.

[0206] The molding process carried out by the lipstick molding apparatus 100 includes a filling process and a temperature adjustment process. To this end, the lipstick molding apparatus 100 includes a lipstick composition filling device 101 and a temperature adjustment device 102.

[0207] In the filling step, a lipstick composition filling device 101 fills (insertion filling) a liquid lipstick composition into a mold 1G (see FIG. 33). A temperature adjustment device 102 then adjusts the temperature of the lipstick in the mold 1 to solidify the lipstick composition and form it into a lipstick.

[0208] In the insert filling process, a pre-filling conveying mechanism 91 at the upstream stage of the lipstick forming device 100 conveys a mold set without a container inserted therein.

[0209] Meanwhile, a lipstick demolding mechanism 92 and a post-filling conveying mechanism 93 are provided downstream of the lipstick molding apparatus 100. The lipstick demolding mechanism 92 removes (releases) the lipstick from the mold 1 in which the lipstick was molded by the lipstick molding apparatus 100.

[0210] Then, the post-filling conveying mechanism 93 inserts the released lipstick into a feeding container and conveys it to proceed to the assembly process at the rear end.

[0211] Fifth Embodiment 33 is a cross-sectional view of the independent molding unit β7 in the fifth embodiment. The independent molding unit β7 of this embodiment is used in the insert and fill type molding method described with reference to FIGS.

[0212] In this embodiment, the lipstick inside is molded separately from the outer tube 81, the spiral tube 82, and the lift tube 83.

[0213] In the configuration of this embodiment, the metal mold 12G and rubber mold 11G extend up to the upper side of the lipstick L. Therefore, the lipstick composition L fills the entire amount of lipstick to be molded into each recess of each mold 1G.

[0214] Therefore, in this embodiment, the lipstick composition (cosmetic composition) in the molding die 1G can conduct heat from the mold 12G to the top and sides over the entire area. When molding is performed by insert filling using a mold that is uniform across the entire area and has good thermal conductivity, there is no difference in thermal conductivity compared to when the materials used for the molding die 1G, which is the lipstick-forming portion, and the elevator tube 83 and spiral tube 82 that are subsequently attached, as shown in Figure 31F, are different, and distortion can be suppressed.

[0215] The lipstick L thus formed is then fitted into the elevator cylinder 83.

[0216] Sixth Embodiment 34 is a cross-sectional view of the independent molding unit β8 in the sixth embodiment. In the fifth embodiment, an example in which the rubber mold 11G is provided in the insert filling method has been described, but the configuration in which the rubber mold is not provided as in the second embodiment may also be applied to the insert filling method.

[0217] When molding is performed without using a rubber mold and using a mold 12H that is uniform throughout and has good thermal conductivity, there is no difference in thermal conductivity compared to when the materials used for the molding mold 1H, the lifting tube 83, and the spiral tube 82 are different, and distortion can be suppressed.

[0218] <<Peltier independent molding unit>> Seventh Embodiment 35 is a cross-sectional view of the independent molding unit γ in the seventh embodiment. In the above example, one Peltier element is provided for multiple molds, but one Peltier element may be provided for one mold. The seventh embodiment is configured such that one Peltier element is provided for one mold (Peltier independent molding unit γ).

[0219] For example, as shown in Figure 35, one Peltier element 30 may be provided on the underside of each molding die. In this case, the size of the Peltier element 30 should be at least equal to or larger than the size of the mold 12 to ensure uniform heating and cooling. Furthermore, when providing individual Peltier elements, the upper limit of the Peltier element may be larger than the outer cylinder, but it is preferable that they are spaced apart enough so as not to collide with or interfere with adjacent Peltier elements.

[0220] Eighth Embodiment The independent molding unit γ1 shown in FIG. 36 in the eighth embodiment is a modified example of the Peltier element and cooling mechanism of the Peltier independent type independent molding unit γ in FIG.

[0221] Similar to the seventh embodiment, this embodiment is an independent Peltier-type molding unit γ1 in which one Peltier element is provided for one molding die. In the configuration of Fig. 36, Peltier element 30I has a cylindrical shape with a bottom and cylindrical side and bottom surfaces.

[0222] Although not shown in Fig. 36, in the Peltier stand-alone independent molded unit γ1, a heat sink 4I for cooling each Peltier element needs to be attached to each Peltier element. In this configuration example, the heat sink 4I has a cylindrical shape with a bottom so as to surround the Peltier element 30I.

[0223] As a method for cooling the heat sink individually, for example, by rotating a cooling fan 69 at the bottom as shown in Figure 36, it is possible to stably perform the heating and cooling process using the Peltier element. Alternatively, the heat sink may be cooled by cooling with one or more refrigerants as shown in Figure 4 above, or by air cooling.

[0224] Ninth Embodiment The independent molding unit γ2 shown in FIG. 37 in the ninth embodiment is a modified example of the Peltier element and cooling mechanism of the Peltier independent type independent molding unit γ1 in FIG.

[0225] In this embodiment, it is also possible to install the Peltier element 30J only on the side surface of the cylindrical shape, as shown in Fig. 37. In this case, the heat sink 4J also has a cylindrical shape that covers the outer peripheral surface of the Peltier element 30J.

[0226] In this example, an example in which a rubber mold is provided in a Peltier independent molding unit has been described, but a configuration in which a rubber mold is not provided may also be applied to this configuration. Furthermore, in Figures 36 and 37, in the Peltier independent type, figures are shown using back filling in which the lifting cylinder 83A, spiral cylinder 82A, and outer cylinder 81A are formed integrally, but even in the case of the Peltier independent type, it is also possible to mold using the back filling method in which only the lifting cylinder 83 is formed integrally, or the insert filling method.

[0227] In this example, the number of Peltier elements and the number of molds are provided in a ratio of 1:1, allowing for more appropriate control for each mold. Furthermore, in Figures 36 and 37, Peltier elements 30I and 30J are in contact with the side of mold 12A, shortening the transmission distance and making it easier to transmit temperature, allowing for more accurate temperature control of the lipstick.

[0228] This embodiment is suitable for small-lot production, such as limited edition products or customized products with names engraved on the lipstick, because lipstick can be molded in minimum units of one.

[0229] <Multiple integrated molding units> In the first to ninth embodiments described above, as shown in FIG. 4, the outer tubes surrounding the mold 12 are independent, spaced-apart heat-insulating tubes, but if the outer tube is made of a heat-insulating material, the outer tube may integrally form a plurality of lipsticks.

[0230] Tenth Embodiment Fig. 38 is a perspective view of the multiple integrally molded unit δ in the tenth embodiment, and Fig. 391 is a cross-sectional view of the multiple integrally molded unit δ in the tenth embodiment of Fig. 38.

[0231] The outer cylinder 20 according to this embodiment is made of a heat insulating material, and the integrally formed outer cylinder 20 has four recesses formed therein into which the four molding dies 1K are inserted. The outer cylinder 20, which is a heat insulating cylinder according to this embodiment, is made of a heat insulating material such as rubber, glass, inorganic fiber, wood fiber, resin, wool, etc., and preferably has a structure that contains a lot of gas.

[0232] As shown in FIG. 39, the other configuration is the same as that of the first embodiment, which has a rubber mold using the back-filling method, and a rubber mold 11K, a metal mold 12K, an inner rubber holder 13K, and an outer rubber holder 14K are provided in each recess of the outer tube 20, and the lipstick molding L is integrally formed with the lifting tube 83, the spiral tube 82, and the outer tube 81 fitted into the upper part.

[0233] One Peltier element 3K is provided at the bottom of the outer cylinder 20, and the lipstick compositions L in the four casting molds 1K are insulated from one another while simultaneously adjusting the temperature.

[0234] 38 shows the multiple-integrated molding unit δ configured for use with the back-filling method, but the multiple-integrated molding unit δ may also be used with the insert-filling method. Furthermore, in the multiple-integrated molding unit δ, the molding die may not have a rubber mold, or may be provided with a tip rubber mold. Furthermore, in the multiple-integrated molding unit δ, the number of molding dies 1K that are simultaneously temperature-controlled, i.e., the number of recesses, is not limited to four, and may be two, three, five or more.

[0235] Eleventh Embodiment Fig. 40 is a perspective view of the multiple integrally molded unit δ1 in the eleventh embodiment, and Fig. 41 is a cross-sectional view of the multiple integrally molded unit δ1 in the eleventh embodiment of Fig. 40.

[0236] In the tenth embodiment, the four molds are integrally formed without any partitions, but in this embodiment, the outer tube 20L is provided with slits 28 that act as partitions. The other configurations are the same as those of the tenth embodiment.

[0237] 37 to 41, the outer tube 20 (20L) is installed so that the temperatures of the contents of the multiple molds are not affected by each other. Therefore, even in a multiple-in-one unit, the temperatures of the molds into which the cosmetic composition is filled can be independently controlled, and temperature variations can be suppressed within each of the multiple molds and within a single mold, regardless of the number of cosmetic products to be molded.

[0238] In each of the above embodiments, an example has been described in which the temperature is controlled only by a Peltier element when molding lipstick, but it is also possible to combine a Peltier element with reheating by hot air blown from above.

[0239] Although the preferred embodiments of the present invention have been described in detail above, the present invention is not limited to such specific embodiments, and various modifications and changes are possible within the scope of the gist of the embodiments of the present invention described in the claims.

[0240] This international application claims priority to Japanese Patent Application No. 2020-213983, filed on December 23, 2020, the entire contents of which are incorporated herein by reference. [Explanation of symbols]

[0241] 1,1A,1B,1K mold 2,2A,2G,2H,2I,2J Outer tube (thermal tube) 3,3G,3H,3I,30,30I,30J,30K Peltier element 4,4I,4J heat sink 5 Controller (device side control unit, control unit) 6 Refrigerant tank (tank) 7 Cooling Unit 8. Dispensing container 9 Lipstick-filled container filling molding manufacturing equipment 11, 11A, 11E, 11G, 11K Rubber mold 12, 12A, 12B, 12C, 12D, 12E, 12F, 12G, 12H, 12K Mold (heat transfer mold) 13 Inner rubber holder (rubber holder) 14 Outer rubber holder (rubber holder) 15 Heat transfer holder 20, 20A, 20K, 20L outer tube (insulating tube) 21 Annular upper end surface 41 Top Pad 42 Comb teeth 43 Rod-like process 67 Cooling fan 71 Cooling path 81,81A Outer tube (Hakama tube) 82,82A spiral tube 83 Elevating tube (inner plate tube, elevating plate) 98 Temperature sensor (environmental sensor) 99 Humidity sensor (environmental sensor) 100 Lipstick molding machine (cosmetic molding machine) 101 Lipstick composition filling device (filling device) 102 Temperature adjustment device 200 Main control device (main control section) 300 Input Device C 1st refrigerant L Lipstick composition (cosmetic composition), lipstick (stick-type cosmetic) W Second refrigerant α Independent temperature control unit β,β1,β2,β3,β4,β5,β6,β7,β8,β9 Independent molding unit γ Peltier independent molding unit δ, δ1 Multiple integrated molding units

Claims

1. a plurality of cylindrical molds with bottoms, each having a cylindrical recess filled with a cosmetic composition for a stick-shaped cosmetic product; an outer cylinder that surrounds the side surfaces of the plurality of molds from the outside; a plurality of Peltier elements capable of heating or cooling the plurality of molding dies; a control unit that controls each Peltier element of the plurality of Peltier elements to adjust the temperature of each of the plurality of molding dies, the outer cylinder is installed so that the plurality of molding dies do not affect each other's temperatures of the filled materials, an environmental sensor for measuring the ambient temperature and / or humidity of the cosmetic molding device; The control unit controls the temperature of the Peltier element based on a set temperature that is adjusted and set based on the measurement result by the environmental sensor. Cosmetic molding equipment.

2. the outer cylinders are a plurality of heat-retaining cylinders, the number of which is the same as the number of the plurality of molding dies, and which surround each side surface of each of the plurality of molding dies, The plurality of heat-retaining cylinders are provided apart from each other and not in contact with each other. The cosmetic molding device of claim 1 .

3. the outer cylinder is a heat insulating cylinder provided in 1-n (n is a natural number of 3 or more) to 1-1 pieces of the plurality of molding dies, the number of which is the same as or less than the number of the plurality of Peltier elements, The heat insulating cylinder is capable of insulating adjacent molds of the plurality of molds from each other so that the temperatures of the filled materials are not affected by each other. The cosmetic molding device of claim 1 .

4. the plurality of Peltier elements are provided in a number of 1 / n (n is a natural number of 2 or more) to n / 1 of the plurality of molding dies, Each Peltier element of the plurality of Peltier elements is capable of heating or cooling one to n molding dies at a time. The cosmetic molding device according to any one of claims 1 to 3.

5. The plurality of Peltier elements are arranged so that they are wider in the horizontal direction than in the vertical direction, The lower ends of 1 to n molds are in contact with the upper surface of one Peltier element. The cosmetic molding device of claim 4.

6. A heat sink is attached to the underside of the Peltier element, The lower end of the heat sink is entirely or partially immersed in a coolant, The lower surface of the Peltier element, which generates heat during heating or cooling, is cooled by the refrigerant. The cosmetic molding device of claim 5.

7. The heat sink is an upper surface pad with which the lower surface of the Peltier element comes into contact; The upper pad has a plurality of rod-shaped or planar comb-teeth portions extending downward from the lower surface thereof. The cosmetic molding device of claim 6.

8. The refrigerant is stored in a tank, The space below the tank is filled with a second refrigerant that cools the tank, or the refrigerant circulates within the tank.

8. The cosmetic molding device according to claim 6 or 7.

9. A heat sink is attached to the underside of the Peltier element, A cooling fan is installed at the entire or part of the lower end of the heat sink so that the lower surface of the Peltier element, which generates heat during heating or cooling, is cooled by outside air. The cosmetic molding device of claim 5.

10. Each of the molding dies is a mold having the cylindrical recess, the recess being directly filled with the cosmetic composition of the stick-shaped cosmetic product; A bottomed cylindrical heat transfer mold that surrounds the side and bottom surfaces of the mold. The cosmetic molding device according to any one of claims 1 to 9.

11. Each of the molding dies is The cosmetic composition of the stick-shaped cosmetic preparation is directly filled into the cylindrical recess, and the cosmetic composition of the stick-shaped cosmetic preparation is a cylindrical heat-transfer type with a bottom. The cosmetic molding device according to any one of claims 1 to 9.

12. The heat transfer mold is a holding cylinder that surrounds the side and bottom surfaces of the mold and has a bottom surface that is not in contact with the Peltier element; an outer heat transfer cylinder that is spaced apart from the outer surface of the gripping cylinder and surrounds the gripping cylinder, the lower end of which contacts the Peltier element; a connecting portion that connects the vicinity of the upper end of the gripping cylinder and the vicinity of the upper end of the outer heat transfer cylinder, The cosmetic molding device of claim 10.

13. The heat transfer mold is The mold has a cylindrical shape with a bottom, a side surface that contacts the side surface of the mold, and a lower surface that does not contact the lower surface of the mold with a space therebelow. The cosmetic molding device of claim 10.

14. Standing upward from the upper end of each of the molds, the device further comprises the same number of holders as the molding dies, which are capable of surrounding and gripping the elevator cylinder that tightly holds the rod-shaped cosmetic material after molding and the spiral cylinder that engages with the outside of the elevator cylinder, With the elevator cylinder and the spiral cylinder held by the holder, the cosmetic composition is filled into each recess of each mold and the inside of each elevator cylinder. Heat is conducted to the cosmetic composition in the elevator cylinder from the underside of the cosmetic composition.

14. The cosmetic molding device according to any one of claims 1 to 13.

15. Standing upward from the upper end of each of the molds, the apparatus further comprises the same number of heat transfer holders as the molding dies, which are capable of surrounding and gripping the elevator cylinders that closely hold the rod-shaped cosmetic material after molding, With the elevator cylinder held by the heat transfer holder, the cosmetic composition is filled into each recess of each mold and the inside of each elevator cylinder; The cosmetic composition in the elevator cylinder has heat transferred from the heat transfer holder to a side surface of the cosmetic composition.

14. The cosmetic molding device according to any one of claims 1 to 13.

16. The cosmetic composition is filled into each recess of each mold in the entire amount of the stick-shaped cosmetic material to be molded. The cosmetic molding device according to any one of claims 1 to 10.

17. Each of the Peltier elements of the plurality of Peltier elements has a cylindrical shape with a bottom, At least a part of a side surface and a lower end of one mold are in contact with an upper surface of one Peltier element and an inner surface of the peripheral wall. The cosmetic molding device according to any one of claims 1 to 3.

18. The Peltier element and the control unit have a power transmission device for transmitting power to each other via a wired power transmission device or a wireless power transmission device. The cosmetic molding device of claim 1 .

19. a plurality of cylindrical molds with bottoms, each having a cylindrical recess filled with a cosmetic composition for a stick-shaped cosmetic product; an outer cylinder that surrounds the side surfaces of the plurality of molds from the outside; a plurality of Peltier elements capable of heating or cooling the plurality of molding dies; a control unit that controls each Peltier element of the plurality of Peltier elements to adjust the temperature of each of the plurality of molding dies, the outer cylinder is installed so that the plurality of molding dies do not affect each other's temperatures of the filled materials, Each of the molding dies is a mold having the cylindrical recess, the recess being directly filled with the cosmetic composition of the stick-shaped cosmetic product; a cylindrical heat transfer mold with a bottom that surrounds the side and bottom surfaces of the mold; The heat transfer mold is a holding cylinder that surrounds the side and bottom surfaces of the mold and has a bottom surface that is spaced apart from and does not come into contact with the Peltier element; an outer heat transfer cylinder that is spaced apart from the outer surface of the gripping cylinder and surrounds the gripping cylinder, the lower end of which contacts the Peltier element; a connecting portion that connects the vicinity of the upper end of the gripping cylinder and the vicinity of the upper end of the outer heat transfer cylinder, Cosmetic molding equipment.

20. a plurality of cylindrical molds with bottoms, each having a cylindrical recess filled with a cosmetic composition for a stick-shaped cosmetic product; an outer cylinder that surrounds the side surfaces of the plurality of molds from the outside; a plurality of Peltier elements capable of heating or cooling the plurality of molding dies; a control unit that controls each Peltier element of the plurality of Peltier elements to adjust the temperature of each of the plurality of molding dies, the outer cylinder is installed so that the plurality of molding dies do not affect each other's temperatures of the filled materials, Each of the molding dies is a mold having the cylindrical recess, the recess being directly filled with the cosmetic composition of the stick-shaped cosmetic product; a cylindrical heat transfer mold with a bottom that surrounds the side and bottom surfaces of the mold; The heat transfer mold is a bottomed cylindrical shape having a side surface that contacts the side surface of the mold and a lower surface that does not contact the lower surface of the mold with a space provided below the lower surface of the mold; Cosmetic molding equipment.

21. A method for manufacturing a stick-shaped cosmetic product in a cosmetic molding device, comprising: The cosmetic molding device comprises a plurality of cylindrical molds with a bottom, an outer cylinder surrounding the sides of the plurality of molds from the outside, a plurality of Peltier elements capable of heating or cooling each of the plurality of molds, and a control unit connected to the plurality of Peltier elements; a step of filling a cylindrical recess of each of the plurality of molds with a cosmetic composition in the form of a stick-shaped cosmetic product; and a step of solidifying the cosmetic composition through each of the molding dies by each of the Peltier elements of the plurality of Peltier elements, by adjusting the temperature of each of the molding dies by the control unit based on the ambient temperature and / or humidity of the cosmetic molding device. In the step of solidifying the cosmetic composition, the outer cylinder prevents the plurality of molding dies from affecting each other in terms of the temperature of the contents therein. A method for molding stick-shaped cosmetics in a cosmetic molding device.

22. In the step of solidifying the cosmetic composition, decreasing the temperature of the Peltier element from a filling temperature to a first temperature; raising the temperature of the Peltier element to a second temperature lower than the filling temperature; and decreasing the temperature of the Peltier element from the second temperature stepwise to a final cooling temperature lower than the first temperature with a maintenance period therebetween, the first temperature is closer to the filling temperature than to the final cooling temperature; A method for molding the stick-shaped cosmetic product according to claim 21.

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