JPH04219223A - Manufacture of container and the like with colored three-dimensional pattern and mold therefor - Google Patents

Abstract

PURPOSE:To conform the colored pattern section and irregular pattern section of a container, a container cover or the like accurately. CONSTITUTION:A previously printed material film is molded on trial, the deviation of a printed colored pattern and a molded irregular pattern is detected, the positions of stationary cooling boards are corrected at every molding die on the basis of the detection, and the colored pattern and the irregular pattern are conformed accurately in order to attain an object in this invention. Accordingly, clearances are formed so that an intermediate mold and an external mold can be moved and corrected even in all directions at 360 deg., and both molds are fitted.

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 colored containers with uneven patterns and molds.

0002

[Prior Art] Conventionally, in the molding of containers having a colored uneven pattern, the colored part and the uneven pattern part matched exactly when one mold was used for each container, but in order to improve efficiency, a large number of When molding with a single plate, there is a risk of misalignment between the colored portion and the uneven pattern portion, making it difficult to manufacture.

However, when molding a large number of containers or lids made of plastic or composite sheets (for example, a composite of thin metal sheets and plastic sheets) using one plate, it is necessary to use the same mold for each container. Since it is fixed to a template, the multiple molds produced by the multiple plate making processes can be corrected as a whole, but it has been impossible to modify individual molds. Therefore, even if there is a discrepancy between the uneven pattern and the color applied to an individual container, there is no way to correct this, and deviations in pattern and color due to material, shape, and other causes are considered unavoidable, and high For products that required precision, methods such as eliminating coloring or using flat patterns instead of uneven patterns were adopted.

0004

[Means for Solving the Problems] However, the present invention solves the above-mentioned conventional problems by loosely fitting the middle mold into the outer mold for each container so that the position where the middle mold is inserted into the outer mold can be adjusted by 360 degrees.

That is, this invention performs collective gravure printing on a thermoplastic resin film independently for each container, etc. by plate making that takes into account deformation during molding, laminates this onto a film of the same or different quality, and then prints it with a mold. In a manufacturing method for containers, etc., which involves molding and cutting, first trial molding and cutting is performed, and the deviation between the colored portion and the uneven pattern portion is detected for each pattern of each container,
Containers with colored three-dimensional patterns, etc., characterized in that the positions of the matching molds are corrected to match the positions of the uneven pattern and the colored part, and then after each mold is fixed, molding and cutting production is started. This is a manufacturing method.

[0006] Another invention provides a method for manufacturing containers, etc., in which a thermoplastic resin film is independently aggregated gravure printed for each container, etc. by plate making that takes into account deformation during molding, and then molded and cut using a mold. First, trial molding and cutting are performed, and the deviation between the colored part and the uneven pattern part is detected for each pattern of each container, and the position of the matching mold is corrected to determine the position of the uneven pattern and the colored part. This is a method for manufacturing colored three-dimensional patterned containers, etc., which is characterized in that after the molds are matched and each mold is fixed, molding and cutting production is started.

[0007] Still another invention is to perform aggregate gravure printing on a composite sheet (for example, a composite of a thin metal plate and a plastic plate) independently for each container, etc. by plate making that takes into account deformation during molding, and then print this using a mold. In the manufacturing method of containers, etc., which involves molding and cutting, first trial molding and cutting are performed, and the deviation between the colored part and the uneven pattern part is detected for each pattern of each container, and the position of the matching mold is corrected. This is a method for manufacturing a colored three-dimensional patterned container, etc., characterized in that after aligning the positions of the uneven pattern and the colored portion, and after fixing each mold, molding and cutting are started.

Next, the mold of the present invention is a mold for manufacturing colored three-dimensional patterned containers, etc., which is constructed by inserting a middle mold into the outer mold of each container through a predetermined correction gap. Further, the mold is a pressure molding mold (pressure molding mold), a pressure molding mold (vacuum molding mold), or a pressure molding mold combined with pressure and vacuum molding.

As described above, according to the present invention, the mold corresponding to the shape patterns of a large number of containers printed on the same material can be modified for each container, etc., so that each uneven pattern and
You can precisely match the colors applied to this. This molding method can be applied to all thermoplastic films and sheets.

0010

[Operation] According to the present invention, each mold can be individually corrected for a large number of individual containers etc. made by the same plate making.
It is possible to match the uneven pattern and color deviation for each individual.

According to the mold, the middle mold and the outer mold have a diameter of 36 mm.
Since fine adjustments can be made in any direction at 0 degrees, the uneven pattern and color can be matched accurately.

0012

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

A colored pattern 2 is printed on a hard vinyl chloride film 1 in consideration of the amount of deformation during molding of the container lid, and a hard vinyl chloride base film 3 is laminated on the printed side of the hard vinyl chloride film 1 ( Figure 6) Making a patterned film material 4. Next, while heating the film material 4 appropriately, a large number of medium molds 6 are placed on the fixed cooling plate 5 corresponding to each container lid, and an outer mold 8 is placed on each of the medium molds 6.
The medium size 6 is inserted through a predetermined gap 18, and the medium 6
Move the mold slightly to align the molds, and shave off the protruding edge of the medium mold 6.
After abutting the contact piece on the retracting side, the middle mold 6 and the outer mold 8 are fixed to the fixed cooling plate 5 with bolts 7. Next, the patterned film material 4 is heated, and the micro holes 11 of the middle mold 6 and the outer mold 8 are heated.
, 11 to vacuum form the film material 4 by sucking the air inside it. In this case, the exhaust air moves as indicated by arrows 19, 20, and 21, and flows from the hole 9 of the medium 6 to the annular groove 2 provided on its lower surface.
2 and is ejected to the outside world. On the other hand, pressurized air is blown onto the upper surface of the film material 4 as shown by the arrow 23, so that the film material 4 is rapidly transformed into a shape along the outer diameters of the middle mold 6 and the outer mold 8 due to suction and pressure. is formed into. In the figure, reference numeral 10 denotes a knockout machine, and its movement (arrow 24) causes the molded product to be peeled off from the middle mold 6 and the outer mold 8.

As mentioned above, after the trial molding, the middle mold 6 can be moved and corrected, so that the uneven part a of each container lid 12 and the colored part b used therein match exactly, so that the shape pattern of the product can be adjusted. and color accuracy can be significantly improved. Although the hard vinyl chloride films 1 and 3 are laminated in the above example, other thermoplastic films or a single film can be similarly used to produce a container lid (or container) with an accurate shape pattern and color.
can be molded. Therefore, the same applies even if the material is a composite sheet of a thin metal plate and a thin plastic plate.

[0015] If the above embodiment is explained as a processing process,
As shown in Figure 4. That is, a raw material film is processed in a specified manner to create a printing film, which is then printed using a printing proofing plate, dried, and then laminated with a base film and dried and cured again to produce a material film that is ready to be molded. . Next, the material film is heated and trial molded, the deviation between the printed part and the uneven part of the mold is corrected, the mold is fixed, the final molding is performed, and each container lid is cut. Becomes a product.

[0016]

[Embodiment 2] In FIGS. 1 and 2, the medium 6 is provided with a large number of minute holes 11, 11 for exhaust.
are in communication with the exhaust holes 13, 13 and the gap 18. This medium mold 6 is fixed onto a fixed cooling plate 5 in accordance with the shape and pattern of plate making. In this case, the fixed cooling plate 5 and the middle mold 6 are installed with a margin for modification (the bolt holes are blank holes), so after trial molding, the middle mold 6 is attached to the arrows 14, 15, 1.
As shown in 6 and 17 (Figure 3), make fine adjustments in any direction of 360 degrees to adjust the uneven parts of the mold and the colored part b of the material film.
and the concavo-convex portion a are made to match accurately. That is, a gap 18 is provided between the outer mold 8 and the middle mold 6 to the extent that it can be corrected in any direction of 360 degrees.

[0017]

Effects of the Invention That is, according to the present invention, after trial molding of a concavo-convex pattern on a material film or a composite sheet of a thin metal plate and a thin plastic plate, a mold (medium mold 6) corresponding to each individual container, etc. is molded. Since it can be corrected, it has the effect of forming a colored uneven pattern with high precision from an aggregate material having a large number of individual shapes.

Also, in cutting after molding (outer diameter punching), since the outer die 8 is a fixed type (only the middle die is movable), if the cutting die is manufactured with these dimensions, accurate cutting (outer diameter punching) can be achieved without deviation. (excluding)
You can.

[0019] Therefore, it is possible to easily mass-produce containers with uneven color patterns, etc., which could not be done conventionally.

Further, according to the mold of the present invention, since the middle mold is inserted into the outer mold with a small gap, correction can be made in any direction of 360 degrees.

[Brief explanation of the drawing]

[Fig. 1] A plan view of a set of molds of the present invention.

[Fig. 2] Cross-sectional view at a diagonal position of a set of molds of the present invention (with fixed cooling plate)

[Fig. 3] Explanatory diagram showing the amount of correction of the middle mold and outer mold of this invention

[
Figure 4: Block diagram showing an example of the manufacturing process of this invention

[Fig. 5] A plan view showing a part of the plate making process of this invention.

[Fig. 6] Enlarged partial cross-sectional view of the plate-made film of the present invention

[Fig. 7] A partial plan view of a molded material according to the present invention.

[Fig. 8] Plan view of a container lid formed according to the present invention.

[Fig. 9] Cross-sectional view of a container lid formed according to the present invention

[Fig. 10] Partially enlarged sectional view of a container lid formed according to the present invention.

[Explanation of symbols]

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

Claims (5)

[Claims] Claim 1: A thermoplastic resin film is individually aggregated gravure printed for each container, etc. by plate making that takes into account deformation during molding, laminated to a film of the same or different quality, and then molded and cut using a mold. In a method for manufacturing containers, etc., first, trial molding and cutting are performed, the deviation between the colored part and the uneven pattern part is detected for each pattern of each container, etc., and the position of the matching mold is corrected, A method for manufacturing a container, etc. with a colored three-dimensional pattern, characterized in that the positions of the uneven pattern and the colored part are aligned, and then after each mold is fixed, molding and cutting are started. 2. In a method for manufacturing containers, etc., in which a thermoplastic resin film is independently aggregated gravure printed for each container, etc. by plate making that takes into account deformation during molding, and then molded and cut using a mold, After trial molding and cutting, the deviation between the colored part and the uneven pattern part was detected for each pattern of each container, and the position of the matching mold was corrected to match the position of the uneven pattern and the colored part. After that, each mold is fixed, and then molding and cutting are started. [Claim 3] Aggregate gravure printing is performed independently for each container, etc. on a composite sheet by plate making that takes into account deformation during molding,
In a manufacturing method for containers, etc., in which the container is molded and cut using a mold, trial molding and cutting are first performed, and the deviation between the colored part and the uneven pattern part is detected for each pattern of each container, and the molding mold is then fitted to each mold. A method for manufacturing a container, etc. with a colored three-dimensional pattern, characterized in that after correcting the position of the uneven pattern and the position of the colored part, and fixing each mold, molding and cutting production are started.
4. A manufacturing mold for containers with colored three-dimensional patterns, etc., constructed by inserting a medium mold into the outer mold of each container through a predetermined correction gap. 5. The mold for producing colored three-dimensional patterned containers, etc. according to claim 4, wherein the mold is a pressure molding mold (pressure molding mold), a pressure molding mold (vacuum molding mold), or a pressure and vacuum molding combination mold.