JP3054959B2 - Manufacturing method and molding die for containers with colored three-dimensional patterns - 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 for producing a container with a colored uneven pattern and the like and a mold.

[0002]

2. Description of the Related Art Conventionally, in molding a container having a colored concavo-convex pattern or the like, in the case of one mold per one, the colored portion and the concavo-convex pattern portion exactly coincide with each other. In the case where is molded by one plate making, there is a possibility that the colored portion and the concavo-convex pattern portion may be displaced, so that it has been considered difficult to manufacture.

However, when a large number of containers are formed by one plate making such as a container made of plastic or a composite sheet (for example, a composite of a thin metal plate and a plastic plate), or a lid, the molding die corresponding to each container is the same. Since it is fixed to the template, a number of molds by the number of plate making,
While it was possible to make corrections as a whole, it was impossible to make corrections between individual molds. Therefore, in individual containers, etc.
Even if the uneven pattern and the coloring applied to it are misaligned, there is no way to correct it, and the deviation of the pattern and color due to the material, shape, and other causes is unavoidable. Methods of stopping coloring or making a flat pattern instead of an uneven pattern have been adopted.

[0004]

However, the present invention has solved the above-mentioned conventional problems by loosely fitting the position where the middle mold is inserted into the outer mold in each container so that the middle mold can be corrected by 360 degrees.

A gravure printing is performed independently for each container or the like on a thermoplastic resin film by a plate making in consideration of deformation during molding, and the gravure printing is performed on the same or different film, and then molded and cut by a molding die. In the manufacturing method, etc., first, trial molding and cutting are performed, and the deviation between the colored portion and the uneven pattern portion is detected for each pattern of each container, etc.
Insert the middle mold into the outer mold of the
Fine adjustment of the position of each of the middle and outer molds independently for each container etc.
Correct the position of each mold that can be configured, adjust the position of each matching mold, match the position of the concavo-convex pattern with the colored part, then fix each mold, and start molding and cutting production And a method for producing a container with a colored three-dimensional pattern.

In a method of manufacturing a container or the like in which each container or the like is independently subjected to collective gravure printing on a thermoplastic resin film by a plate making in consideration of deformation at the time of molding and then molding and cutting with a molding die, first, trial molding and cutting are performed. The deviation between the colored portion and the uneven pattern portion is detected for each pattern of each container or the like, and the
Insert the middle mold into each outer mold via a predetermined correction gap, and
Fine adjustment of the position of each of the middle and outer molds independently for each container etc.
After adjusting the position of each mold that is configured to be adjustable, the position of the matching mold is adjusted to match the position of the uneven pattern and the colored part,
This is a method for manufacturing a container with a colored three-dimensional pattern or the like, characterized by starting molding and cutting production after fixing each mold.

In a method of manufacturing a container or the like in which a composite sheet is independently subjected to collective gravure printing on a composite sheet for each container and the like by a plate making in consideration of deformation at the time of molding, and then formed and cut by a forming die, first trial molding and cutting are performed. The deviation between the colored portion and the uneven pattern portion is detected for each pattern of each container and the like , and the deviation of each container and the like is detected .
Insert the middle mold into the outer mold via a predetermined correction gap, and
The middle and outer molds can be individually adjusted independently for each container.
After adjusting the position of the matching molds to match the positions of the concavo-convex pattern and the colored part, fix each mold, and start molding and cutting production. And a method for producing a container with a colored three-dimensional pattern.

[0008] Thermoplastic by plate making in anticipation of deformation during molding
Gravure stamps are separately collected on each conductive resin film
Printing, molding, and cutting equipment
In the manufacturing mold , the middle mold is inserted into the outer mold of each container via a predetermined correction gap, and the outer mold base is attached to the middle mold base.
Bolts are inserted into the bolt holes provided on each of the pedestals
And is attached to a fixed cooling plate . The molding die is a pressure molding die (pressure molding die), a reduced pressure molding die (vacuum molding die), or a molding die combined with both pressure and reduced pressure.

As described above, according to the present invention, a mold corresponding to the shape and pattern of a large number of containers printed on the same material can be corrected for each individual container or the like.
The color to be applied can be accurately matched. This molding method can be applied to all thermoplastic films and sheets.

[0010]

According to the present invention, with respect to a large number of individual containers and the like having the same plate making, each mold can be individually corrected.
The concavo-convex pattern and the color shift can be matched to each individual.

According to the molding die, the middle die and the outer die are 36
Since fine adjustment can be performed in any direction at 0 degrees, the concavo-convex pattern and the color can be accurately matched.

[0012]

Embodiment 1 Next, an embodiment of the present invention will be described with reference to the accompanying drawings.

The colored pattern 2 is printed on the rigid vinyl chloride film 1 in consideration of the deformation during the molding of the container lid, and the rigid vinyl chloride base film 3 is laminated on the printing side of the rigid vinyl chloride film 1 ( FIG. 6) The patterned film material 4 is made. Next, the film material 4 is appropriately heated, and a number of middle dies 6 are placed on the fixed cooling plate 5 corresponding to the respective container lids.
The middle mold 6 is inserted through a predetermined gap 18 and based on the deviation between the color portion b and the uneven portion a of each pattern detected by trial molding.
Is moved slightly, and the mold is matched.
After the abutment is brought into contact with the draw-in side, the middle mold 6 and the outer mold 8 are fixed to the fixed cooling board 5 with bolts 7. Then, the patterned film material 4 is heated, and the fine holes 1 of the middle mold 6 and the outer mold 8 are heated.
The air inside the film material 4 is sucked from 1 and 11 to form a vacuum. In this case, the exhaust moves as indicated by arrows 19, 20, and 21, and is discharged from the hole 9 of the middle die 6 to the outside through an annular groove 22 provided on the lower surface thereof. On the other hand, pressurized air is blown on the upper surface of the film material 4 as shown by arrow 23,
The film material 4 is rapidly formed into a shape along the outer diameter of the middle mold 6 and the outer mold 8 by suction and pressure. In the figure, reference numeral 10 denotes a knockout board, which is used to move a molded product by moving (arrow 24).
Peel from the middle mold 6 and the outer mold 8.

Since the middle mold 6 can be moved and corrected after the trial molding as described above, the concave / convex portion a of each container lid 12 exactly matches the color portion b used for the same. In addition, the color accuracy can be significantly improved. In the above, the rigid vinyl chloride films 1 and 3 are laminated, but a container lid (or a container) having a precise shape, pattern and color in the same manner with another thermoplastic film or a single film.
Can be molded. Therefore, the same is true even when the material is a composite sheet of a metal thin plate and a plastic thin plate.

If the above embodiment is described as a processing step,
As shown in FIG. That is, a predetermined processing is performed on the raw material film to form a print film, which is printed using a printing proof plate, dried, then laminated with a base film and dried and cured again, and a material film immediately before molding is formed. . Next, while heating the material film, trial molding, correcting the deviation between the printed portion and the concave and convex portions of the mold, fixing the molding die, then forming the molded product, and cutting each container lid. Product.

[0016]

Embodiment 2 In FIGS. 1 and 2, the middle mold 6 is provided with a large number of minute holes 11 for exhausting.
Communicates with the exhaust holes 13, 13 and the gap 18. The middle die 6 is fixed on the fixed cooling plate 5 in accordance with the shape and pattern of the plate making. In this case, since the fixed cooling platen 5 and the middle mold 6 are attached with a margin for correction (bolt holes are stupid holes), the middle mold 6 is indicated by arrows 14, 15, 1 after trial molding.
Fine adjustment is made in any direction of 360 degrees as shown in FIGS. 6 and 17 (FIG. 3), and the irregularities of the mold and the color part b of the material film are obtained.
And the concavo-convex part a are accurately matched. That is, a gap 18 is provided between the outer die 8 and the middle die 6 such that the gap 18 can be corrected in any direction of 360 degrees.

[0017]

That is, according to the present invention, after a test pattern is formed on a material film or a composite sheet of a metal thin plate and a plastic thin plate, a forming die (middle die 6) corresponding to each individual container or the like is formed. Since it can be corrected, a colored uneven pattern can be manipulated from a collective material having a large number of individual shapes in one operation.
There is an effect that a large number of pieces can be formed with high precision.

In the cutting after cutting (outer diameter punching), the outer die 8 is a fixed die (only the middle die can be moved). No)
You can do it.

Therefore, there is an effect that a container with a concavo-convex color pattern, etc., which could not be obtained conventionally, can be easily mass-produced.

According to the molding die of the present invention, the middle mold is inserted into the outer mold with a small gap, and the outer mold base is inserted into the middle pedestal.
Overlap the seats and insert the bolts into the bolt holes provided in each of the pedestals.
And the fixed cooling panel was attached, so that 360
There is an effect that correction can be made in any direction.

[Brief description of the drawings]

FIG. 1 is a plan view of a pair of molds of the present invention.

FIG. 2 is a cross-sectional view of a pair of molds of the present invention at a diagonal position (with a fixed cooling plate).

FIG. 3 is an explanatory view showing the amount of correction of the middle and outer molds of the present invention.

FIG. 4 is a block diagram showing an example of a manufacturing process of the present invention.

FIG. 5 is a plan view showing a part of the plate making of the present invention.

FIG. 6 is an enlarged partial cross-sectional view of a plate-making film of the present invention.

FIG. 7 is a partial plan view of a molded material according to the present invention.

FIG. 8 is a plan view of a container lid formed according to the present invention.

FIG. 9 is a sectional view of a container lid formed according to the present invention.

FIG. 10 is a partially enlarged cross-sectional view of a container lid formed according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hard vinyl chloride film 2 Colored pattern 3 Hard vinyl chloride base film 4 Film material 5 Fixed cooling board 6 Medium size 7 Bolt 8 Outer type 10 Knockout board 11 Micro hole

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI // B29L 22:00 (56) References JP-A-54-93063 (JP, A) JP-A-63-162218 (JP, A) JP-A-62-152719 (JP, A) JP-A-60-42620 (JP, U) JP-B-50-40428 (JP, B2) (58) Fields investigated (Int. Cl. ⁷ , DB name) B29C 51/30 B29C 33/38 B29C 51/10 B29C 51/16 B29C 51/46

Claims (5)

(57) [Claims] 1. A gravure printing is performed on a thermoplastic resin film independently for each container or the like by a plate making process in anticipation of deformation at the time of molding, and this is laminated on a homogeneous or dissimilar film, and then molded and cut by a molding die. In the method of manufacturing containers and the like, first, trial molding and cutting are performed, and the deviation between the colored portion and the uneven pattern portion is detected for each pattern of each container and the like, and
Insert the middle mold into each outer mold via a predetermined correction gap, and
Fine adjustment of the position of each of the middle and outer molds independently for each container etc.
For each mold that can be adjusted, adjust the position of each mold matching mold so that the position of the concavo-convex pattern and the colored portion match, then fix each mold, and start molding and cutting production. Method for producing containers with colored three-dimensional patterns characterized by the following: 2. A method for manufacturing a container or the like, in which collective gravure printing is independently performed for each container or the like on a thermoplastic resin film by plate making in consideration of deformation at the time of forming, and then formed and cut by a forming die, cut and to detect the deviation between the colored portion and the concave-convex pattern portions for each pattern for each container or the like, wherein each container
Insert the middle mold into the outer mold of each etc. through a predetermined correction gap, and
Each of the middle and outer molds is individually finely positioned for each container etc.
After adjusting the positions of the molds , adjusting the positions of the matching molds to match the positions of the concavo-convex pattern and the colored portion, fixing each mold, and then starting molding and cutting production. Method for producing containers with colored three-dimensional patterns characterized by the following: 3. A method of manufacturing a container or the like, in which collective gravure printing is independently performed for each container or the like on a composite sheet by plate making in consideration of deformation at the time of forming, and the resultant is formed and cut by a forming die. Cutting, detecting the deviation between the colored portion and the uneven pattern portion for each pattern of each container, etc .;
Insert the middle mold into the outer mold of the
Fine adjustment of the position of each of the middle and outer molds independently for each container etc.
After adjusting the positions of the molds for each of the molds that have been configured as possible, aligning the positions of the concavo-convex pattern and the colored portion, fixing each mold, and then starting molding and cutting production. For producing containers with colored three-dimensional patterns, etc., characterized by (4) Heating is possible by plate making in consideration of deformation during molding.
Gravure set independently for each container etc. on plastic resin film
Manufacturing equipment for containers, etc. that are printed, molded and cut by a mold
In the manufacturing mold of the above, the middle mold is inserted into the outer mold of each container via a predetermined correction gap, and the outer mold pedestal is attached to the middle pedestal.
And bolts are inserted into the bolt holes provided in each of the pedestals.
Molding mold for containers with colored three-dimensional patterns, etc., which are mounted on a fixed cooling plate 5. A mold for manufacturing a container with a colored three-dimensional pattern according to claim 4, wherein the mold is a pressure mold (pressure mold), a reduced pressure mold (vacuum mold), or a combined pressure and reduced pressure mold.