JP6128592B2 - Back filling unit in a filling device for viscous cosmetics - Google Patents

Description

  The present invention provides a back filling unit in a viscous cosmetic filling and molding apparatus capable of obtaining a high-quality molded product without causing a concave portion or a poor color tone such as a flow mark in the molded product. It is about.

  A conventional sticky cosmetic filling and molding apparatus using a sticky cosmetic backfill unit is provided with a partition made of resin or metal and filled with, for example, multiple colors in a bottomed dish (cosmetic container). A configuration is adopted in which a plurality of filling holes are provided in the bottom part of the partitioned inner dish, and the viscous cosmetics for a plurality of colors are simultaneously pressurized and filled from the back of the inner dish (back filling), and then dried and solidified into a product. ing.

  A conventional example of a viscous cosmetic filling and forming apparatus using such a viscous cosmetic back-filling unit will be described with reference to FIGS.

  FIGS. 8 to 10 schematically show a viscous cosmetic filling and forming apparatus previously proposed by the applicant of the present application (Patent Document 1). An intermediate dish 31 in which the cosmetic is back-filled, a back-filling unit 11 disposed below the intermediate dish 31 so as to approach and separate from the intermediate dish 31, that is, to move up and down, An upper finishing unit 41 is arranged above the dish 31 so as to be movable up and down so as to approach and leave the middle dish 31.

  The inner tray 31 is made of a synthetic resin material containing a viscous cosmetic material (slurry cosmetic material) K obtained by slurrying powder cosmetic with a solvent such as ethanol, isopropyl alcohol, isoparaffin, silicon, water, etc. It is shaped like a bottomed dish.

  The inner tray 31 is divided into, for example, two places by a partition member 32 and, for example, two bottom holes 33 are provided at the bottom thereof.

  And it is comprised so that the inner tray 31 may be mounted | worn and supported on the upper surface of the rectangular parallelepiped holder 34 for middle tray accommodation fixedly arranged in a fixed position. The holder 34 is provided with two holder holes 35 for inserting the filling nozzle 14.

  The back filling unit 11 includes a rectangular parallelepiped filling unit main body 13 having a triple structure of an upper block 12a, a middle block 12b, and a lower block 12c.

  In the upper block 12a of the filling unit main body 13, two filling nozzles 14 are mounted in a vertically upright arrangement corresponding to the two partition regions of the inner tray 31, and the upper ends of the two filling nozzles 14 are placed on the upper side. It protrudes above the block 12a.

  Each of the filling nozzles 14 includes a nozzle hole 14a that forms a flow path for the viscous cosmetic material K in a penetrating state, and the upper end portion of the filling nozzle 14 has another diameter corresponding to the diameter of the bottom hole 33 of the inner tray 31. A tip nozzle portion 15 having a smaller diameter than the portion is provided.

  Further, a large-diameter nozzle hole 14b having a larger diameter than the other part of the nozzle hole 14a is formed at the lower end side of the filling nozzle 14, that is, at the part facing the boundary with the middle block 12b. The upper part of the large-diameter nozzle hole 14b is tapered so as to communicate with the nozzle hole 14a.

  The middle block 12b is formed with a viscous cosmetic flow hole 10 communicating with the nozzle holes 14a of the filling nozzles 14, and a joint portion for connecting a viscous cosmetic supply pipe (not shown) to the side wall portion thereof. 16 are provided at two locations, and two internal holes 17 communicating with the viscous cosmetic material circulation hole 10 are provided inside each joint portion 16.

  The lower block 12 c is provided with two valve pin holes 18 that penetrate from the bottom surface to the top surface and communicate with the viscous cosmetic material circulation hole 10.

  The back filling unit 11 further includes a valve pin unit 21.

  The valve pin unit 21 has a valve pin support plate 22 disposed on the lower side of the lower block 12 c, a distance between the valve pin support plate 22 and the interval between the two valve pin holes 18, and a screw 23. The two valve pin holes 18 and two valve pins 24 respectively inserted into the two viscous cosmetic material circulation holes 10 in a state of supporting the lower end portion.

  The valve pin 24 includes a sliding pin portion 24a in a range from the valve pin support plate 22 side through the valve pin hole 18 to a portion that slightly enters the viscous cosmetic circulation hole 10, and most of the viscous cosmetic circulation hole 10 Is formed integrally with a small-diameter pin portion 24b in a region occupying the upper portion and a substantially spherical bulging pin portion 24c in an upper end region facing the large-diameter nozzle hole 14b.

  An annular lower packing 20b is disposed at the lower end of the viscous cosmetic material circulation hole 10 in the middle block 12b.

  And the inner peripheral part of this lower packing 20b is closely joined to the outer peripheral part of the sliding pin part 24a in the said valve pin 24, and prevents the viscous cosmetic K from leaking to the said lower block 12c side. ing.

  An annular upper packing 20a is disposed at the upper end of the viscous cosmetic material circulation hole 10 in the middle block 12b, that is, the portion facing the large-diameter nozzle hole 14b of the filling nozzle 14.

  When the back filling unit 11 is in a standby state before filling as shown in FIG. 8 (the same is true when filling is finished as shown in FIG. 10), it is between the upper surface of the valve pin support plate 22 and the lower surface of the lower block 12c. A gap c is formed, and at this time, the outer peripheral portion of the bulging pin portion 24c of the valve pin 24 is configured to be closely joined to the inner peripheral portion of the annular upper packing 20a.

  Thereby, it is comprised so that the communication state (distribution of the viscous cosmetic K) of the said nozzle hole 14a and the said viscous cosmetics circulation hole 10 may be interrupted | blocked.

Further, as shown in FIG. 9, when the valve pin unit 21 is driven up so that the gap c is eliminated and the viscous cosmetic material K is filled, the bulging pin portion 24c of the valve pin 24 is located above the upper packing 20a. Thus, a gap is formed between the outer peripheral portion of the bulging pin portion 24c of the valve pin 24 and the inner peripheral portion of the annular upper packing 20a. The viscous cosmetic material K is configured to flow through the holes 14a.
Although the detailed description of the upper finishing unit 41 is omitted, a vacuum solvent recovery unit 42 for recovering a solvent including a vacuum pad 43 for molding the viscous cosmetic K filled in the inner dish 31; It has a known structure having a separation plate 44 attached to the lower part of the vacuum pad 43.

  Further, a strip-shaped decorative material restraining member 45 made of roll paper, cloth, nonwoven fabric, or the like disposed so as to be able to be unwound and wound is disposed between the separation plate 44 and the upper surface of the inner tray 31.

  Next, the operation of the above-described filling device for the viscous cosmetic material K is mainly performed by the back-filling unit 11 in the filling operation of the viscous cosmetic material K in the middle plate 31 with reference to FIGS. 8 to 11. explain.

  FIG. 8 shows a standby state before filling. At this time, a gap c is formed between the upper surface of the valve pin support plate 22 and the lower surface of the lower block 12c. The outer peripheral portion of the bulging pin portion 24c is closely joined to the inner peripheral portion of the annular upper packing 20a.

  Next, the filling unit main body 13 and the valve pin unit 21 are driven upward while maintaining the positional relationship shown in FIG. 8, and the two filling nozzles 14 are brought into contact with the lower surfaces of the bottom holes 33 of the inner tray 31. .

Next, as shown in FIG. 9, the filling unit main body 13 is stopped and the valve pin unit 21 is driven up so that the gap c is eliminated, and the outer peripheral portion of the bulging pin portion 24 c of the valve pin 24 and the annular ring shape are driven. A gap is formed between the inner packing of the upper packing 20a.
Further, the upper finishing unit 41 is lowered to a predetermined position with the decorative material restraining member 45 interposed.

  In this state, the viscous cosmetic material K is supplied into the middle block 12b, and the viscous cosmetic material circulation hole 10, the gap, the large-diameter nozzle hole 14b of the filling nozzle 14, the nozzle hole 14a, and the tip nozzle portion 15 are provided. After that, the viscous cosmetic material K is filled into the intermediate dish 31 from the bottom holes 33 of the intermediate dish 31 and the upper finish unit 41 finish-molds the upper surface of the viscous cosmetic material K filled in the intermediate dish 31. I do.

  In FIG. 9, the distribution path of the viscous cosmetic material K is indicated by a thick arrow.

  At the stage where the filling and molding process of the viscous cosmetic material K into the inner tray 31 is completed, as shown in FIG. 10, the valve pin unit 21 is placed in the gap c while the filling unit main body 13 is stopped. Is lowered to a position to form.

  Thereafter, the viscous cosmetic K filled in the inner dish 31 is solidified and cooled to form a molded product, and the filling unit main body 13 and the valve pin unit 21 are moved to the standby position before filling shown in FIG. The upper finishing unit 41 is also returned to the standby position before filling, the molded product is taken out from the holder 34, and a series of molding operations is completed.

  FIG. 11 shows a series of explanatory diagrams of the molding operation of the conventional example described above.

  When the back filling unit 11 as described above is used to fill the middle dish 31 of the viscous cosmetic material K, when the valve pin unit 21 is lowered to the position where the gap c is formed, the valve pin 24 is moved accordingly. When lowering, due to the suck back phenomenon, a concave portion is formed at the upper surface position corresponding to the bottom hole 33 of the inner tray 31 in the molded product, or the viscous cosmetic material K in the hole portion in the tip nozzle portion 15 of the filling nozzle 14 is formed. The contained solvent volatilizes, and when the pressurized viscous cosmetic K is initially filled, a flow mark (pattern) is generated, which increases the difficulty in setting the filling conditions of the valve pin unit 21 and molding. There was a risk of inferior product quality.

JP 2012-192020 A

  The problem to be solved by the present invention is that a molded product does not have a molding defect such as a recess or a color tone such as a flow mark, and a high-quality molded product can be obtained. In addition, there is no back filling unit in the viscous cosmetic filling and molding apparatus that does not involve the difficulty in setting the filling conditions.

The back filling unit according to the present invention is a viscous cosmetic filling and forming apparatus for obtaining a molded product by providing a bottom hole in the bottom portion of the middle dish and back-filling the viscous cosmetic into the middle dish from the bottom hole side. A back filling unit, wherein the back filling unit is provided with a filling nozzle that protrudes from below while facing the bottom end of the inner tray with the open end of the nozzle hole facing the bottom hole, and is pumped from a viscous cosmetic supply source A filling unit main body for back-filling the viscous cosmetic material through the nozzle hole of the filling nozzle into the inner dish, and from the lower side of the filling unit main body through the filling unit main body into the nozzle hole of the filling nozzle. in conjunction with the vertically movable mounted, a valve pin unit having a valve pin having a distal pin portion for closing or releasing the opening end of the nozzle holes at the tip, viscosity-shaped cosmetic of the filling unit body Has a viscosity like cosmetic flow path opening and closing mechanism constituted by a bulging pin portion provided in said the packing placed within the through hole valve pin, a, to the filling unit body and said in the dish by the filling nozzle When the viscous cosmetic material is back-filled, the valve pin unit is driven downward to separate the tip pin portion of the valve pin from the open end of the nozzle hole to release the open end, and between the bulging pin portion and the packing. open the flow path of Nebajo cosmetic by withdrawal, at end back filling Nebajo cosmetics, as well as closing the open end of the distal pin portion Thus the nozzle hole of the valve pin by increased driving of the valve pin unit, wherein The most important feature is that the flow path of the viscous cosmetic material is closed by close contact between the bulging pin portion and the packing .

According to the first aspect of the present invention, the filling nozzle is brought into contact with the bottom surface of the bottom hole of the inner pan by the ascending drive of the valve pin unit, and is filled by the tip pin portion of the valve pin, particularly in the filling end stage of the molding process. It is configured so as to close the opening end of the nozzle hole of the nozzle, and is composed of a packing arranged in the viscous cosmetic material circulation hole of the filling unit main body and a bulging pin portion provided on the valve pin. Since there is a flow channel opening / closing mechanism for the cosmetic, there is no sack back phenomenon, the solvent contained in the viscous cosmetic in the nozzle hole can be avoided, and there are no concave parts or flow marks. it is possible to obtain, and lowering the valve pin unit within a certain range, it is only increasing, filled condition setting of the valve pin unit is also simplified easily Opening of the open end of the nozzle hole of the filling nozzle, clogging and can also be interlocked with opening and closing of Nebajo cosmetic flow path, back filled in the filling molding apparatus stable can perform filling operation of Nebajo cosmetics Units can be realized and provided.

According to the second aspect of the present invention, the multi-color filling configuration is adopted, and in particular, in the filling end stage of the molding process, each filling nozzle is brought into contact with the bottom hole bottom surface portion of the inner dish by the ascending drive of the valve pin unit. The opening pin of each filling nozzle is closed by the tip pin portion of each valve pin, and the packing disposed in the viscous cosmetic material circulation hole of the filling unit body and the expansion provided on the valve pin Since it has a channel opening / closing mechanism for viscous cosmetics composed of an output pin part, the occurrence of suck back phenomenon is eliminated, and the volatilization of the solvent contained in the viscous cosmetics in the nozzle holes can be avoided. It is possible to obtain a high-quality molded product with multiple colors without a flow mark, and it is only necessary to lower and raise the valve pin unit within a certain range. Filling condition setting knit is also simplified easy opening of the open end of the nozzle hole of the filling nozzle, and clogging can also be interlocked with opening and closing of Nebajo cosmetics of the flow path, filling by stable polychromatic filled configuration It is possible to realize and provide a back filling unit in a viscous cosmetic filling and forming apparatus capable of performing an operation .

According to the invention of claim 3, a multi-color filling configuration is adopted, and in particular, at the filling end stage of the molding process, each filling nozzle is brought into contact with the bottom hole bottom portion of the middle dish by driving up the valve pin unit, The packing pin and the valve pin, which are configured to close the opening end of the tapered nozzle hole of each filling nozzle by the tip tapered pin portion of each valve pin, and are arranged in the viscous cosmetic material circulation hole of the filling unit body Since the sticky cosmetic channel opening / closing mechanism is provided, which is formed by the bulging pin portion provided in the same , the suck back phenomenon does not occur and the sticky makeup in each nozzle hole is eliminated. It is possible to avoid volatilization of the solvent contained in the material, it is possible to obtain a high-quality molded product consisting of multiple colors with no recesses or flow marks, and a single valve pin unit. Falling within the range, it is only increasing, filled condition setting of the valve pin unit is also simplified easily be interlocked open the opening end of the nozzle hole of the filling nozzle, a closing, and opening and closing of Nebajo cosmetic flow path It is also possible to realize and provide a back filling unit in a viscous cosmetic filling and forming apparatus capable of performing a filling operation with a stable multicolor filling configuration .

FIG. 1 is a schematic cross-sectional view showing a waiting state before filling of a back filling unit of a viscous cosmetic material according to an embodiment of the present invention. FIG. 2: is a schematic sectional drawing which shows the filling preparation completion state of the back filling unit of the viscous cosmetics which concerns on a present Example. FIG. 3: is a schematic sectional drawing which shows the state during filling of the back filling unit of the viscous cosmetics based on a present Example. FIG. 4 is a schematic cross-sectional view showing a filling completion state of the back filling unit of the viscous cosmetic material according to the present embodiment. FIG. 5: is a schematic sectional drawing which shows the standby position return state after completion | finish of the back filling unit of the viscous cosmetics based on a present Example. FIG. 6 is a block diagram showing a control system of a main part of the viscous cosmetic filling and forming apparatus including the back filling unit according to the present embodiment. FIG. 7 is an explanatory view of the operation of the back filling unit of the viscous cosmetic material according to the present embodiment. FIG. 8: is a schematic sectional drawing which shows the state in the standby before filling of the back filling unit of the conventional viscous cosmetics. FIG. 9 is a schematic cross-sectional view showing a state during filling of a conventional back filling unit of a viscous cosmetic material. FIG. 10 is a schematic cross-sectional view showing a filling completion state of a conventional back filling unit for viscous cosmetics. FIG. 11 is an operation explanatory diagram of a conventional back filling unit for viscous cosmetics.

The present invention does not cause a molding defect such as a recessed portion or a color tone defect such as a flow mark in the molded product, and can obtain a high-quality molded product and set filling conditions. For the purpose of providing a back filling unit in a viscous cosmetic filling and molding apparatus that does not involve the difficulty of providing a plurality of bottom holes on the bottom surface of the inner tray partitioned into a plurality of regions, each bottom hole side A back filling unit in a viscous cosmetic filling molding apparatus for obtaining a molded product by back-filling a plurality of viscous cosmetics into a middle dish from the bottom dish, wherein the back filling unit is provided in each bottom hole of the middle dish. A plurality of filling nozzles that contact from below while facing the open end of each nozzle hole are provided in a protruding state, and the viscous cosmetic material pumped from the viscous cosmetic supply source passes through the nozzle holes of each filling nozzle. Back filling into the inner dish A filling unit main body is mounted in the nozzle hole of each filling nozzle through the filling unit main body from the lower side of the filling unit main body so as to be movable up and down, and the open end of each nozzle hole is closed at the tip. Or a valve pin unit comprising a plurality of valve pins each having a tip pin part to be released, a packing arranged in a viscous cosmetic material circulation hole of the filling unit body, and a bulging pin part provided on the valve pin. A downward opening drive of the valve pin unit at the time of back-filling a plurality of colored cosmetics into a plurality of regions of the inner dish by the filling unit main body and each filling nozzle. the addition to release each open end away tip pin portion of each valve pin from the open end of the respective nozzle holes, the withdrawal of the packing and the bulge pin portion by Ri Open Nebajo cosmetic flow path, closed at the time of back-filling of a plurality of colors tacky-like cosmetic ends, the open end of the respective valve pin tip pin portion Thus the respective nozzle holes by increasing the drive of the valve pin unit In addition, this is realized by a configuration in which the flow path of the viscous cosmetic material is closed by the close contact between the bulging pin portion and the packing .

  Hereinafter, the back filling unit of the viscous cosmetic K filling and forming apparatus according to the embodiment of the present invention will be described in detail with reference to FIGS. 1 to 7.

  In the back filling unit 1 in the viscous cosmetic K filling and molding apparatus according to the present embodiment, the same elements as in the case of the back filling unit in the viscous cosmetic K filling and molding apparatus of the conventional example have the same elements. It shows with a code | symbol.

  The filling molding apparatus using the back filling unit 1 of the viscous cosmetic material K according to the present embodiment has, for example, a two-color filling configuration, and is basically a conventional filling molding apparatus as shown in FIG. 1 except that the back filling unit 1 having the structure shown in FIG. 1 is used instead of the back filling unit 11 of the conventional example.

  In addition, the structure of the filling unit main body 13 is the same as the case of a prior art example.

  In other words, as shown in FIG. 1, the back filling unit 1 according to the present embodiment changes the structure of the conventional filling nozzle 14 and the valve pin unit 21, and the filling nozzle 2 having a cylinder / piston approximate structure unique to this embodiment. , And the valve pin unit 3 are employed.

  As shown in FIG. 1, the filling nozzle 2 of the present embodiment is fixed to the upper block 12 a of the filling unit body 13, and two filling nozzles 2 correspond to the two partition regions of the inner tray 31 from the upper block 12 a. It protrudes upward in the configuration.

  Each of the filling nozzles 2 is provided with a nozzle hole 2a that forms a flow passage for the viscous cosmetic material K in a penetrating state, and a circular shape corresponding to the diameter of the bottom hole 33 of the inner tray 31 is formed at the upper end portion thereof. A tapered nozzle portion 2c having a tapered diameter is formed. The outer diameter of the tapered nozzle portion 2c is slightly larger than the diameter of the bottom hole 33 of the inner tray 31.

  Further, a tapered nozzle hole 2 b is formed in the upper end portion side of the tapered nozzle portion 2 c so that the diameter of the opening end thereof is equal to the diameter of the bottom hole 33 of the inner tray 31.

  As shown in FIG. 1, the valve pin unit 3 has a valve pin support plate 22 disposed on the lower side of the lower block 12c, and has the same interval as the interval between the two valve pin holes 18 with respect to the valve pin support plate 22. In the state where the lower end portion is supported by the screw 23, the two valve pin holes 18, the two viscous cosmetic material circulation holes 10, and the nozzle holes 2a and the tapered nozzle holes 2b. Each has two inserted valve pins 4.

The valve pin 4 has a sliding pin portion 4a in a range from the valve pin support plate 22 side through the valve pin hole 18 to a portion that slightly enters the viscous cosmetic circulation hole 10, and most of the viscous cosmetic circulation hole 10 A small-diameter pin portion 4b that occupies the region, a bulging pin portion 4c formed at a position corresponding to the upper packing 20a, and a taper shape extending further upward from the bulging pin portion 4c and passing through the nozzle hole 2a. A tip pin portion 4d extending into the nozzle hole 2b and a tip tapered pin portion 4e having a shape corresponding to the tapered nozzle hole 2b formed at the upper end of the tip pin portion 4d and having a flat upper end surface. It has. The bulging pin portion 4c and the upper packing 20a constitute a flow path opening / closing mechanism for the viscous cosmetic material K.

  The outer diameter of the tip pin portion 4d is slightly smaller than the inner diameter of the nozzle hole 2a, thereby ensuring a flow path of the viscous cosmetic material K by the nozzle hole 2a inside each filling nozzle 2. Yes.

  1, the valve pin support plate 22 is in close contact with the lower surface of the lower block 12c (gap c = 0), and the upper end surface of the tip tapered pin portion 4e of the valve pin 4 is The tip tapered pin portion 4e is fitted into the tapered nozzle hole 2b in a state where the opening end of the tapered nozzle hole 2b is flush with the tapered nozzle hole 2b, and the bulging pin portion 4c is formed on the inner peripheral portion of the upper packing 20a. It is configured to be in close contact.

  Next, with reference to FIG. 6, the control system of the filling molding apparatus of the viscous cosmetic K including the back filling unit 1 of the viscous cosmetic K according to the present embodiment will be described.

The control system includes a program memory 52 that stores an operation program related to the filling and forming apparatus according to the present embodiment, a control unit 51 that controls each element based on the operation program, and an operation for inputting various characters and numerical values by an operator. A keyboard or touch panel type operation unit 53, a display unit 54 such as a liquid crystal display for displaying various characters and numerical values on the screen, and a back filling unit driving unit for vertically driving the filling unit main body 12 of the back filling unit 1 55, a valve pin unit driving unit 56 that drives the valve pin unit 3 up and down, and an upper finishing unit driving unit 57 that drives the upper finishing unit 41 up and down.
The back filling unit driving unit 55, the valve pin unit driving unit 56, and the upper finishing unit driving unit 57 employ a configuration (not shown) that converts, for example, the rotational motion of a servo motor into a linear motion using a ball screw.

  In addition, the filling molding apparatus of the present embodiment includes a viscous cosmetic material supply source having external filling pumps for the number of colors for feeding the viscous cosmetic material K to the filling unit body 12, and the cosmetic material restraining member 45. It is equipped with a feeding / winding drive unit for feeding and winding.

  Next, the operation of the apparatus for filling and forming the viscous cosmetic material K according to the present embodiment is mainly performed by the back-filling unit 1 in the filling operation of the viscous cosmetic material K in the middle dish 31 with reference to FIGS. To explain.

  FIG. 1 shows a standby state before filling. At this time, the valve pin support plate 22 is in close contact with the lower surface of the lower block 12c (gap c = 0), and the tip end of the valve pin 4 is a tapered pin. With the upper end surface of the portion 4e and the opening end of the tapered nozzle hole 2b being flush with each other, the tip tapered pin portion 4e is fitted into the tapered nozzle hole 2b to close the tapered nozzle hole 2c, and The bulging pin portion 4c is in close contact with the inner peripheral portion of the upper packing 20a.

  Next, the back filling unit driving unit 55 and the valve pin unit driving unit 56 are operated in synchronization, and the filling unit main body 13 and the valve pin unit 3 are driven upward while maintaining the positional relationship shown in FIG. As shown, the two filling nozzles 2 are brought into contact with the lower surfaces of the bottom holes 33 of the inner tray 31 (preparation for filling).

  In this state, both the back filling unit driving unit 55 and the valve pin unit driving unit 56 are set in a driving stopped state.

  Next, as shown in FIG. 3, the filling unit main body 13 is stopped and the valve pin unit driving section 5 is operated, so that the valve pin support plate 22 forms a gap c between the lower surface of the lower block 12 c. The valve pin unit 3 including the valve pin 4 is lowered until the valve pin unit drive unit 56 is in a drive stop state at this position.

  Further, the upper finishing unit driving unit 57 is operated, and the upper finishing unit 41 is lowered to a predetermined position shown in FIG. 3 with the decorative material restraining member 45 interposed, and is stopped in this state.

  As a result, the tapered nozzle hole 2b facing the bottom hole 33 of the middle plate 31 is opened by the taper-shaped pin portion 4e at the tip of the valve pin 4 being away from the opening end of the tapered nozzle hole 2b, and the bulging pin The part 4c is separated from the upper packing 20a.

  As a result, the viscous cosmetic material distribution hole 10, the outer peripheral outer side of the bulging pin portion 4 c, the nozzle hole 2 a, the tapered nozzle hole 2 b and the viscous cosmetic material K reaching the bottom hole 33 of the intermediate dish 31 A flow path is formed.

  At this stage, the viscous cosmetic material supply source supplies viscous cosmetic material K into the middle block 12b, and passes through the above-mentioned viscous cosmetic material K flow path from each bottom hole 33 of the intermediate dish 31 to the intermediate dish. 31 is filled with the viscous cosmetic material K, and the upper finishing unit 41 performs finish molding of the upper surface of the viscous cosmetic material K filled in the inner dish 31.

  In FIG. 3, the distribution path of the viscous cosmetic material K is indicated by a thick arrow.

  Next, as shown in FIG. 4, at the stage where the filling and molding process of the viscous cosmetic material K in the inner tray 31 is completed, the valve pin unit driving unit 5 is operated, and the valve pin support plate 22 is moved to the lower plate. The valve pin unit 3 including the valve pin 4 is raised to a position where it is in close contact with the lower surface of the block 12c, and the valve pin unit driving unit 5 is brought into an operation stop state.

  Thereby, the positional relationship of the valve pin unit 3 with respect to the filling unit main body 13 is similar to the case shown in FIGS. 1 and 2 with the upper end surface of the tip tapered pin portion 4e of the valve pin 4 and the open end of the tapered nozzle hole 2b. The tip tapered pin portion 4e is fitted in the tapered nozzle hole 2b in a state where the taper nozzle hole 2c is closed in a state where the nozzles are flush with each other. The upper end surface is in close contact with the lower surface of the bottom hole 33 of the inner tray 31 to close the bottom hole 33, and the bulging pin portion 4c is in close contact with the inner peripheral portion of the upper packing 20a to form the nozzle hole 2a and the viscous cosmetic. The flow hole 10 is blocked.

  In this state, the viscous cosmetic material K filled in the inner tray 31 is solidified and cooled to obtain a molded product.

  Finally, as shown in FIG. 5, the filling unit main body 13 and the valve pin unit 3 are returned to the standby position before filling similar to the case shown in FIG. 1, and the upper finishing unit 41 is also returned to the standby position before filling. The molded product is taken out from the holder 34 and the series of molding operations is completed.

  A series of explanatory diagrams of the molding operation of this embodiment described above is shown in FIG.

  According to the series of filling operations as described above by the back filling unit 1 of the present embodiment, the tapered nozzle portion in the state where the tapered nozzle hole 2c of the filling nozzle 2 is closed, particularly at the filling end stage of the molding process. The upper end surface of 2c and the upper end surface of the tip tapered pin portion 4e of the valve pin 4 are in close contact with the lower surface of the bottom hole 33 of the inner tray 31 so as to close the bottom hole 33.

  As a result, when the viscous cosmetic K is solidified and cooled, the tapered nozzle hole 2c below the bottom hole 33 and the suck back phenomenon due to the reduced pressure in the nozzle hole 2a do not occur. It is possible to prevent the concave portion from being generated at the upper surface position corresponding to the bottom hole 33 of the inner tray 31 in FIG.

  At the same time, the volatilization of the solvent contained in the viscous cosmetic material K in the tapered nozzle hole 2c and the nozzle hole 2a of the filling nozzle 2 can be avoided, and when the pressurized viscous cosmetic material K is initially filled, a flow mark (pattern) is provided. It will not be generated.

  As a result, it is possible to obtain a high-quality molded product without causing a molding defect such as a recessed portion or a color tone defect such as a flow mark in the molded product.

  Further, in the above-described series of filling operations by the back filling unit 1 of the present embodiment, the valve pin unit 3 only needs to be driven to descend and rise within a certain range of the valve pin unit drive unit 5 based on the operation program. The filling condition setting of the valve pin unit 3 can be simplified easily.

  The back filling unit in the viscous cosmetic filling and molding apparatus of the present invention can be widely applied as a back filling unit having a multi-color filling structure such as three-color filling and four-color filling in addition to the two-color filling structure as described above. It is.

DESCRIPTION OF SYMBOLS 1 Back filling unit 2 Filling nozzle 2a Nozzle hole 2b Tapered nozzle hole 2c Tapered nozzle part 3 Valve pin unit 4 Valve pin 4a Sliding pin part 4b Small diameter pin part 4c Expansion pin part 4d Tip pin part 4e Tip taper pin part 10 Viscous cosmetic flow hole 12a Upper block 12b Middle block 12c Lower block 13 Filling unit body 16 Joint portion 17 Internal hole 18 Valve pin hole 20a Upper packing 20b Lower packing 22 Valve pin support plate 23 Screw 31 Middle dish 32 Partition material 33 Bottom hole 34 Holder 35 Holder hole 41 Upper finishing unit 42 Vacuum solvent recovery unit 43 Vacuum pad 44 Release plate 45 Cosmetic material restraining member 51 Control unit 52 Program memory 53 Operation unit 54 Display unit 55 Back filling unit drive Part 56 upper valve pin unit driving unit 57 finishing unit driving unit K Nebajo cosmetics c gap

Claims (3)

A back filling unit in a viscous cosmetic filling and molding apparatus for obtaining a molded product by providing a bottom hole in the bottom part of the intermediate dish and back-filling the viscous cosmetic into the intermediate dish from the bottom hole side,
The back filling unit is
The filling nozzle is provided in a protruding state with the nozzle hole facing the bottom hole of the inner tray while facing the open end of the nozzle hole, and the viscous cosmetic material pumped from the viscous cosmetic supply source is provided in the nozzle hole of the filling nozzle. A filling unit main body for back-filling the inside dish through
A tip pin portion that is movably mounted in the nozzle hole of the filling nozzle from the lower side of the filling unit main body through the inside of the filling unit main body and that has a tip pin portion that closes or releases the opening end of the nozzle hole at the tip portion. A valve pin unit comprising a valve pin comprising;
A flow path opening / closing mechanism for the viscous cosmetic material, comprising a packing disposed in the viscous cosmetic material circulation hole of the filling unit main body and a bulging pin portion provided on the valve pin;
Have
At the time of back-filling the viscous cosmetic material into the inner dish by the filling unit main body and the filling nozzle, the valve pin unit is driven downward to separate the tip pin portion of the valve pin from the opening end of the nozzle hole to release the opening end. In addition, the flow path of the viscous cosmetic material is opened by detachment of the bulging pin portion and the packing, and when the viscous cosmetic material is back-filled, the valve pin unit is driven up to the tip pin portion of the valve pin. Thus with closing the open end of the nozzle hole, the bulging pin portion and the packing and Nebajo cosmetic filling molding apparatus characterized by being configured to close the flow path of Nebajo cosmetic by adhesion Back filling unit. Filling with viscous cosmetics to provide a plurality of bottom holes in the bottom part of the inner tray partitioned into multiple areas, and back filling multiple colored viscous cosmetics into the inner dish from each bottom hole side A back-filling unit in a molding apparatus,
The back filling unit is
A plurality of filling nozzles that are brought into contact with each other from below while facing the open ends of the nozzle holes facing the bottom holes of the inner dish are provided with a protruding state, and each of the viscous cosmetics fed from the viscous cosmetic supply source is provided. A filling unit main body for back-filling the inside dish through the nozzle hole of the filling nozzle;
A tip pin that is movably mounted in the nozzle hole of each filling nozzle from the lower side of the filling unit main body through the inside of the filling unit main body, and closes or releases the open end of each nozzle hole at the tip portion. A valve pin unit comprising a plurality of valve pins comprising a portion;
A flow path opening / closing mechanism for the viscous cosmetic material, comprising a packing disposed in the viscous cosmetic material circulation hole of the filling unit main body and a bulging pin portion provided on the valve pin;
Have
When back-filling a plurality of colors of viscous cosmetic material into a plurality of regions of the inner dish by the filling unit main body and the filling nozzles, the tip pin portions of the valve pins are moved to the nozzle holes by the descending drive of the valve pin unit. Release each open end away from the open end, and open the flow path of the viscous cosmetic material by detachment of the bulging pin portion and the packing, at the end of the back-filling of the multi-colored viscous cosmetic material, wherein depending on the tip pin portion of each of the valve pin by increased driving of the valve pin unit with closing the open end of the nozzle holes, so as to close the flow path of Nebajo cosmetic by adhesion between the gasket and the bulge pin portion A back filling unit in a viscous cosmetic filling and forming apparatus, characterized in that it is configured. Filling with viscous cosmetics to provide a plurality of bottom holes in the bottom part of the inner tray partitioned into multiple areas, and back filling multiple colored viscous cosmetics into the inner dish from each bottom hole side A back-filling unit in a molding apparatus,
The back filling unit is
The nozzle hole that forms the flow path of the viscous cosmetic material is provided in a penetrating state, and the upper end thereof is reduced in diameter to a circular taper corresponding to the diameter of the bottom hole of the inner dish, and the hole diameter of the opening end is A plurality of taper-shaped nozzle portions provided with tapered nozzle holes equal to the diameter of the bottom hole of the middle dish, and a plurality of abutting from below while facing the open ends of the nozzle holes to the bottom holes of the middle dish A filling unit main body that has a filling nozzle in a protruding state, and back-fills the viscous cosmetics pumped from the viscous cosmetic supply source into the inner plate through the nozzle holes and tapered nozzle holes of each filling nozzle; ,
A valve pin support plate disposed on the lower side of the filling unit main body from the lower side of the filling unit main body, and a nozzle hole of each of the filling nozzles through the filling unit main body and a tapered nozzle hole are mounted so as to be movable up and down. And a valve pin unit comprising a plurality of valve pins each having a tip tapered pin portion that closes or releases the opening end of the tapered nozzle hole at the tip portion;
A flow path opening / closing mechanism for the viscous cosmetic material, comprising a packing disposed in the viscous cosmetic material circulation hole of the filling unit main body and a bulging pin portion provided on the valve pin;
Have
At the time of back-filling a plurality of colors of viscous cosmetics into a plurality of regions of the inner dish by the filling unit main body and the filling nozzles, the tapered portions of the tips of the valve pins are tapered by the downward driving of the valve pin unit. When releasing the open ends apart from the open ends of the shaped nozzle holes, opening the flow path of the viscous cosmetic material by detachment of the bulging pin portion and the packing, and when filling the multi-colored viscous cosmetic material back When finished, the valve pin unit is driven upward to close the open end of each tapered nozzle hole by the tapered end of each valve pin, and the viscous makeup is achieved by the close contact between the bulging pin and the packing. A back filling unit in a viscous cosmetic filling and molding apparatus , wherein the material flow path is closed .

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