JP3100212B2 - Decorative product molding method and apparatus - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for molding decorative products in various forms, and more particularly to a method and an apparatus for releasing a fluid filling used for obtaining decorative products.

[0002]

2. Description of the Related Art Already from a fluid filling which is in a fluid state, for example, chocolate, kamaboko, ice, gypsum, eraser,
Soap, a method for producing various other plastic products, that is, a filling step of filling a fluid filling into a molding die, a step of cooling the filling like chocolate, or a step of molding and solidifying by heating like a kamaboko, and 2. Description of the Related Art A method of manufacturing a molded product including a release step of removing a solidified product from a mold has been practiced for a long time.

[0003] The demolding process among these is as follows.
JP-A-63-31726, JP-A-63-31116
And JP-A-63-212117 are known.
Japanese Patent Application Laid-Open No. Sho 63-31726 discloses that a negative pressure chamber is placed in a negative pressure state from an opening of an elastic molding die to take out a decorative product. A device for adsorbing a product is added, and Japanese Patent Application Laid-Open No. 63-212117 further includes a vertically moving device provided in the adsorbing device.

[0004]

However, the above-mentioned conventional suction device and vertical moving device have a drawback that the decorative product cannot be reliably released from the elastic molding die. However, in a continuous automatic manufacturing apparatus, it is necessary to reliably release a decorative product from an elastic molding die on a line. In addition, the adhesive force between the decorative product and the elastic mold is uneven at the uneven portion, and cannot be sufficiently removed by the above-described conventional suction device or the vertical movement device. Is expected to give.

Accordingly, an object of the present invention is to provide a method of molding a decorative product, which makes it possible to forcibly remove a decorative product from an elastic molding die without damaging it and to improve the durability of the elastic molding die. It is to provide the device.

[0006]

DISCLOSURE OF THE INVENTION The present invention has achieved the above-mentioned object, and the gist of the present invention is to provide an elastic bag-shaped elastic mold having a filling section for molding products of various forms, and a filling storage tank. A filling step of filling the fluid filling from the nozzle through a nozzle, a solidifying step of solidifying the filling filled in the elastic mold, and a mold release step of removing the solidified filling, a decorative product molding method comprising: The release step expands the elastic mold along the inner surface of a porous core having a shape substantially the same as the expanded form of the mold, and extrudes the solidified filler from the opening side of the elastic mold. A method of molding a decorative product , characterized in that: Here, the filling is used to produce, in addition to chocolate, kamaboko, ice, gypsum, eraser, soap, and various other plastic products, etc., which is initially liquid and cooled or heated in an elastic mold. And those solidified by As the porous core, a net-shaped or cloth-shaped air-permeable screen or the like can be considered in addition to a sintered product of a synthetic resin having continuous pores, styrene foam or urethane foam. Further, as a method of expanding the elastic molding die, a method is considered in which either one or both of suction from the opposite opening of the mold and blowing of pressurized air from the opening side to the filling portion are performed at the same time.

In another aspect of the present invention, there is provided a filling device for filling a fluid filling into a bag-shaped elastic mold,
In an apparatus for continuously producing a decorative product by continuously connecting a solidifying device for solidifying the filling material and a releasing device for removing the solidified filling material, the releasing device is provided at an opposite opening of the elastic molding die. A release pressure chamber to be fitted and disengaged, a porous core substantially adhering the expanded surface of the elastic mold to the inner surface of the pressure chamber, and There is a decoration product forming apparatus comprising: an extruding member that moves up and down in a core to release the decoration product from an elastic mold.

[0008]

[Effect] The elastic mold is expanded along the inner surface of the porous core having the same shape as the expanded shape of the mold, and the solidified filler is extruded from the opposite opening of the elastic mold. br />

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a conceptual view showing the whole of a conventional apparatus used in the present invention. A panda-shaped elastic molding die 1 having fine irregularities for producing a decorative product is mounted on a driving source such as a motor (not shown). ) So as to be replaceable with the endless conveyor belt 3 wound around the pulley 2. Conveyor belt 3
In the filling step A, the filling pressure chamber 5 is raised in the direction of the arrow by a vertical movement device (not shown) when the conveyor belt 3 is stopped in the filling step A.
The elastic molding die suspended from the conveyor belt 3 is fitted in a close contact state from below. After the fitting, the inside of the pressure chamber 5 is set to a negative pressure by the pressure control device 4, so that the outside air is sucked from the opening 9 on the upper part of the elastic molding die 1 and expanded, and the temperature and viscosity are adjusted in advance by tempering. A predetermined amount of the fluidized chocolate 6 as the fluidized filling is discharged from the storage tank 7 into the filling portion 8 of the elastic mold 1 by a nozzle via a metering device (not shown). Next, the filling pressure chamber 5 is returned to the atmospheric pressure, the elastic molding die 1 is contracted to the original shape, the pressure chamber is lowered by the vertical movement device, and the same die 1 is vibrated by the vibrator 10 while moving the conveyor belt 3, The chocolate in the mold is solidified by being immersed in the cooling tunnel 11 as the solidification step B for a predetermined time. Further, the elastic molding die 1 moves to the mold releasing step C, and the releasing pressure chamber 12 is lowered in the direction of the arrow by an up-down moving device (not shown) to fit the elastic molding die 1 from above into a close contact state. . In this state, the pressure in the mold release pressure chamber 12 is reduced to a negative pressure by the pressure control device 13 so that air is introduced from the opening 9 of the mold 1 to expand the mold.
0 falls on the conveyor 15 and the product is collected by the product collection container 16. The elastic mold 1 after releasing is subjected to a preheating step D
After the chocolate fixed as a residue is blown off or blown by blowing hot air into the mold and melted at the same time, the interior of the mold is made substantially the same as the chocolate discharge temperature in the filling step A, so that the decoration product To maintain a good, glossy quality.

The improved apparatus and method of the present invention in the release step C will be described below with reference to FIGS.

The panda-shaped elastic molding die 1 is fitted as an endless line into holes formed at predetermined intervals in the belt conveyor 3 that moves intermittently, and is fixed by a fixing frame 19. The elastic molding die 1 which has been inverted the state of the filling step A and moved the opening 9 downward is in a state in which a cooling and solidified panda-shaped decorative product is accommodated in the filling part 8. .
In this state, above the opening opposite to the elastic mold,
A release pressure chamber 12 that can be moved up and down by a vertical moving device (not shown) is provided. The pressure chamber 12 has a core 20 having substantially the same shape as the expanded shape of the elastic molding die. Further, the core 2 is placed in the pressure chamber 12 from outside of the chamber in an airtight state.
0, an extruding member 21 capable of vertical movement of extrusion and retraction is installed from above and below the elastic mold 1 containing the filler 30 by an elevating device (not shown) such as an air cylinder. I have. Of course, the pressure chamber 12 is suctioned to a negative pressure state through the pressure pipe 22 by the pressure control device 13.

On the other hand, below the opening 9 of the elastic molding die 3, a fitting chamber 25 which moves up and down by an up-and-down moving device (not shown) is lined with the releasing pressure chamber 12 and the belt conveyor 3 via the belt conveyor 3. Arrange symmetrically. Pressure air is blown into the fitting chamber 25 from a separately provided compressor or the like through a pipe 23, and the inside of the chamber is pressurized in accordance with suction in a negative pressure state in the pressure chamber 12. Also, the fitting chamber 25
In the panda, a lifter (not shown) such as an air cylinder makes it possible to vertically move up and down from the outside of the chamber in an airtight state, A receiving member 26 is provided for receiving the shaped chocolate molded product 30.

Reference numerals 18 and 19 denote sealing materials provided on the periphery of the lower end of the pressure chamber and the periphery of the upper end of the fitting chamber 25, respectively.

The elastic molding dies 1 fixed to the conveyor belt 3 one by one at predetermined intervals, and the pressure chambers 12 and the fitting chambers 25 arranged above and below the elastic molding dies 1, respectively, as shown in FIG. For example, it is preferable to arrange a plurality of juxtaposed pieces, such as six or eight pieces, in order to improve the work efficiency, and it is more preferable to implement them.

[0016] The following steps are used to take out a solidified chocolate molded product as a filler using the mold release apparatus having the above-described configuration.

First, the elastic molding die 1 is moved to the belt conveyor 3.
To stop between the release pressure chamber 12 and the fitting chamber 25, and to move the pressure chamber 12 and the fitting chamber 25 up and down by the up and down moving device respectively (FIG. 2), and to provide them at the upper and lower peripheral edges of each chamber. The mold 1 is fitted into the core 25 by closely contacting the sealing materials 18 and 24 to the fixed frame 19 of the belt conveyor (FIG. 3).

Next, air is sucked into the release pressure chamber 12 by the pressure control device 13 and air is added to the fitting chamber 25 from a compressor or the like. In this case, the flow of air in the chamber between the release pressure chamber 12 and the fitting chamber shifts from the pipe 25 to the pressure pipe 22, but since the porous core 20 is provided therebetween, the fitting chamber is The pressure difference between the positive pressure state and the negative pressure state is generated between the chamber 25 and the mold release pressure, and the elastic mold 1 expands and is joined along the inner surface of the core 20. In this state, the chocolate molded product 30 as a solidified filler is peeled to some extent from the elastic molding die 1, but is not yet sufficiently peeled at the fine irregularities and the like above. In particular, if the fine irregularities are on the pressure chamber 22 side, the elastic mold 1 cannot be separated from the chocolate molded product at this location. Therefore,
The receiving member 26 is raised by an air cylinder, and the upper dish-shaped receiving portion is applied to the lower part of the chocolate molded product 30 (FIG. 4). In this case, the rising stroke of the receiving member 26 is set in advance to the distance to the lower end of the elastic molded product 1.

When the receiving member 26 extends to the upper end, the distance h between the upper end of the receiving member 26 and the lower end of the pushing member is maintained.
Start descending at the same speed (Fig. 5). At this time, since the extrusion member 21 penetrates the core 20 and is located between the core and the elastic molding die 1, the uneven portion of the elastic molding die 1 is separated from the core 25 by the flow of the pressurized air, and is completely removed. The peeled state is obtained (FIG. 5).

Then, the receiving member 26 is pulled back into the fitting chamber 25 at the original position while the chocolate molded product 30 is still placed on the tray, and the fitting chamber 25 is also lowered by the vertical moving device to move the belt. Removed from conveyor and pushed out member 21
Is also returned to the upper position of the core 20, and the release pressure chamber 12 is also removed upward from the belt conveyor 3 to return (FIG. 6).

According to the above-described embodiment, the suction of the pressure pipe 22 and the blowing of the pressure air from the pipe 23 are simultaneously performed. The mold expands, in which case the other pipe or pressure tube is connected to the atmosphere.

Although not an essential part of the present invention, the angle θ between the horizontal line and the funnel-shaped slope located between the filling portion 8 of the elastic mold 1 and the fixed portion fixed to the fixed frame 19 is as follows. 5 °
At the same time as the range of ~ 35 °, this part is preferably an arm bending part having a radius of curvature larger than the radius, from the viewpoint of mold release. When the angle is less than 5 °, when the elastic mold is immersed in a latex solution or the like, the same portion becomes thick and a thick ring shape is formed in the mold, making it difficult to release the mold. In this case, it is difficult to extend the adjustment portion, which is a place where the product is taken out, in the lateral direction.

Released panda-shaped chocolate molded product 3
0 is conveyed by the conveyor 15 and collected. on the other hand,
The elastic mold 1 after releasing is heated by passing through a heating tunnel or the like as a preheating step D, and shifts to the next filling step A.

In the above embodiment, a liquid chocolate was used as the filling material.
It can also be used for molding of ice, gypsum, eraser, soap, and various other plastic products. Further, the solidification step includes not only cooling but also heating and solidifying like a kamaboko.

[0025]

As described above, according to the method and apparatus for molding a decorative product of the present invention, the elastic molding die is expanded so as to substantially join the inner surface of the porous core, and the decoration is formed by the extruded member. By detaching the product from the elastic mold, the durability of the elastic mold can be maintained, and the decorative product can be easily detached from the mold.

[Brief description of the drawings]

FIG. 1 is an overall conceptual view of a conventionally known decorative product forming apparatus.

FIG. 2 is an explanatory view of a mold release device of the decorative product molding device, showing a state where a mold release pressure chamber is lowered and a fitting chamber is raised.

FIG. 3 is an explanatory diagram when the release pressure chamber and the fitting chamber are sealed from a belt conveyor from FIG. 2;

FIG. 4 is an explanatory view showing a state in which pressure air is sucked from a fitting chamber and air is released from a release pressure chamber in FIG. 3;

FIG. 5 is an explanatory view of a state in which a decorative product is released from an elastic mold.

FIG. 6 is an explanatory view showing a state where the decorative product is placed on the receiving member from FIG. 5 and the release pressure chamber and the fitting chamber are returned to their original positions.

[Explanation of symbols]

 A Filling Step B Solidification Step C Release Step D Preheating Step 1 Elastic Mold 3 Belt Conveyor 9 Opening 12 Release Pressure Chamber 20 Porous Core 21 Extruded Member 26 Receiving Member 30 Filled Material

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-293109 (JP, A) JP-A-63-31726 (JP, A) JP-A-63-312117 (JP, A) JP-A-63-316 312116 (JP, A) JP-A-63-312111 (JP, A) JP-A-63-312118 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B29C 39/04-39 / 06 B29C 39/22-39/36 B29C 33/40-33/46

Claims (2)

(57) [Claims] 1. A filling step of filling a fluid filling material from a filling storage tank through a nozzle into an open bag-shaped elastic molding tool provided with a filling portion for molding products of various forms; In a method for molding a decorative product, comprising: a solidifying step of solidifying the filled filler; and a release step of removing the solidified filler, wherein the releasing step includes forming the elastic molding die into substantially the same shape as the expanded shape. shape as the porous inflated along the core inner surface, the molding method of the decorative product characterized by extruding the filling solidified from the anti opening side of the elastic mold. 2. A filling device for filling a fluid filling into a bag-shaped elastic mold, a solidifying device for solidifying the filling, and a releasing device for taking out the solidified filling are continuously provided. In a device for manufacturing a decorative product, the release device is a release pressure chamber that fits into and disengages from the opposite opening of the elastic molding die, and substantially expands the elastic molding die on the inner surface of the pressure chamber. And an extruding member that moves up and down in the core from the opening side of the expanded elastic molding die to separate the decorative product from the elastic molding die. Equipment for molding decorative products.