JPS5887023A - Die for molding two-color-film - Google Patents

Abstract

PURPOSE:To obtain the titled die through which the position of dappled part, the number of the dappled parts and the width of the dappled part can be readily changed, by providing a merging guide die with inner and outer communication bores in the same number, and detachably arranging stopping members upstream of the inner and outer bores so that they may be closed individually or in groups. CONSTITUTION:A merging guide die 17 is positioned between inner and outer resin passages 11, 12 and a merging resin passage 15, and is provided with the inner and outer communication small bores 18a, 18b with them arranged into two concentric circles. The plugs 19 positioned upstream of the communication small bores are detachably arranged, and an arbitrary number of the communication small bores 18a, 18b at arbitrary positions can be closed by the plugs 19.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a die for producing a film in which two different colors (including transparency) are lined when producing a film strip by an inflation method.

In particular, imitation bamboo leaves used for decoration sheets, sushi, bento boxes, etc., and monochrome green sheets with linear lips every 2 to 6 dragons are used for bamboo leaves and leaves. It is used by punching it into a shape.

However, these natural plants tend to be prized not in a single color, but in pale green or ivory-colored variegated ones, and even in imitation S leaves, it is common for restaurants to make this kind of plant. Although it has been long-awaited in the catering and catering lunch box industry, until now, there was no processing technology available, and monochromatic imitation wrapping paper had been used.

This invention is in response to the above-mentioned demands of customers in the food and beverage industry, etc., and allows for the easy production of variegated sheets with almost no difference in efficiency from the production of energized single-color sheets. This is to make it possible to easily change the location, the number of variegated areas, and even one defect using one die.

This invention consists of an inner and outer double cylindrical resin connected to the discharge ports of an extruder, and a cylindrical resin downstream of these, connected to an annular outlet and concentric with the double resin path. A donut-shaped merging guide die is interposed between the downstream ends of the 21 resin passages and the upstream ends of the merging resin passages. From the end position, the same number of communication holes that pass through the front d pi merging guide die and reach the upstream end of the h standard merging mal wire are arranged in the merging guide die on the outside and the outside 21 for each double resin path. The communicating holes, which correspond to the inner and outer sides, are merged in the downstream part, and the upstream end of each of the communicating holes has a special feature of having these holes individually or separately. This is a die for color film molding.

The invention will now be described on the basis of exemplary embodiments shown in the drawings.

In the figure, reference numeral 10 denotes a die for manufacturing films by the inflation method, and 2Mo cylindrical resin passages 11 and 12 are provided concentrically and concentrically on the inside and outside, each of which is operated by an independent extruder (not shown). It has a supply port 16.14 which can be connected to a discharge port. Reference numeral 15 denotes a single cylindrical confluent resin passage provided downstream of the inner and outer resin passages 11 and 12, the most downstream end of which forms an annular blowout 7ro 16; Merging resin road 15 is also inside and outside 2
Heavy resin path 11. ．． 12 and concentric circles. This merging resin passage 15 does not cause turbulence, and the oil flow outlet 16
It is best to have something that flows.

A merging guide die 17 having a donut disk shape is provided at a position between the inner and outer resin paths 11 and 12 of the two plates and the merging resin path 15, and the outer diameter of the merging guide die 17 is (6). All Kusuji * 12 (has a larger diameter than the Te device, and the inner diameter is smaller than all the resin channels, that is, the inner 1
From the second downstream end position, the inner and outer connecting holes 18a and 18b penetrating toward the merging resin path 15 are arranged in a row in the same number of 21 yen. That is, as shown in Figure 6 and Figure 4, ψJ is clear, the upstream side of the group of inner communicating holes 188 is located inside the merging guide die 17 from the downstream side, and the group of outside communicating holes 18b has an upstream side located closer to the downstream side. They are located on the outside of the merging guide die 17 from the side, and these internal and external communication small holes 1
8a and 18b are each made into a set, and are connected in a V-shape to merge at the downstream part, and the communicating small holes of these pairs are located within a plane containing the axis of the merge guide die 17. It's a shame.

Further, a stopper 19 for closing the communication hole 18a or 18b is removably provided at the upstream end of the communication hole 18a or 18b, and a large number of stoppers 19 are provided.
9, contact Renrei's location/JX hole 18,3
, 18b can be closed ().

In principle, this stopper 19 has a single communicating hole 18a.

or 18b, but if necessary, it may be shaped to close two or more communication holes 18a or 18b on the inside or outside +11!4, and in reality, these numbers Sometimes a mixture of seeds is used.

In order to use the apparatus of the present invention configured as described above, each supply port 16, 14 is connected to an independent extruder discharge port, and a different color is synthesized for each valley extrusion. When resin is supplied, molten resins of different colors are supplied to the inner and outer resin passages 11 and 12, and the resin supplied to the inner resin passage 11 is supplied to the inner and outer resin passages 11 and 12.
The molten resin passed through the 88 group, and was supplied to the confluence resin path 15 and the outer resin path 12 through the outer series 1\hole 18b.
, and flows into the merging resin path 15.

Therefore, all internal and external connections/JS holes 18a and 1 are plated in gold.
Suppose that the plug 19 is not fitted to the plug 8b at all.

Inside the merged resin path 15, resin flows in two colors, inside and outside, and a tube with inner and outer layers of different colors is formed from the outlet 16.

Now, suppose that the plug 19 is inserted into any part of the inner connecting hole 18a.
When it is fitted and closed, the communication outlet 16
The resin extruded from the outer resin passage 12 is only the resin that has flowed in from the outer resin passage 12.

On the other hand, in the part where the plug 19 is fitted into the outer gAO communication hole 18b and the inner communication hole 18a is open, only the molten resin that has flowed in from the inner resin path 11 flows through the merging resin path 15 and is blown out. It is pushed out from the mouth 16.

Therefore, in the device of the present invention, the inner and outer connecting holes 18a
, 18b, if the plug 19 is fitted alternatively, 2.
Colored resin can be molded into a tube with strips arranged, and by appropriately selecting and changing the position of the stopper 19, the stripe position and width can be changed to one connection/]\\hole 18a or 18
The strip width formed by b can be arbitrarily changed as a unit width, and the color of the film formed in this way can be the same color on both sides of the film.

Furthermore, if either the inner or outer communicating holes 18a or 18b are left open, and the plugs 19 are placed so as to close any of the other communicating holes 18b or 18a at appropriate positions, the formed film will be The entire outside or inside can be I4i colored, and only the other inside or outside can have a two-color pattern (see Fig. 6).

Also, if you manufacture a film using these two colors of resin as the bright and light colors of the thread, and punch it into natural bamboo leaves or hama paku, you can create something very similar in appearance. Can be molded.

In this invention, if a transparent resin is supplied to one of the inner and outer tree JJIi paths, a film with sleeve-shaped transparent parts can be manufactured. In addition, in the device of the present invention, it is also possible to supply resin of the same quality and color to the inner and outer resin channels 11 and 12,
Of course, it is also possible to supply different colors of the same color (7).

[Brief explanation of the drawing]

The figures show things related to this invention, and Figure 1 is a partially longitudinal side view of the front of the inflation die with a cow-cut vertical section, and Figure 5 is an example of an imitation leaf with an i used for bento boxes, sushi, etc. Figures 1 and 6 are cross-sectional views of a film in which part of the inner or outer side has a two-color striped pattern. In the diagram, 10... Inflation dice, 11...
...Inner resin tract, 12...Outer resin tract,
13.14... Supply port, 15... Merging resin path, 16... Air outlet, 17...
...merging guide die, 18a...inner connecting small hole group, 1
8b...Outer communicating pore group, 19...Plug. (8)

Claims (3)

[Claims] (1) Dual inner and outer cylindrical resin paths connected to the discharge ports of separate extruders, and downstream from these,
A cylindrical merging resin path is provided which is concentric with the 21 resin paths and is connected to the mound-shaped outlet, and a doughnut-shaped merging resin path is provided between the downstream end of the double resin path and the upstream end of the merging resin path. A guide die is interposed, and the number of communication holes extending from the downstream end position of each 2N resin path through the die in the merging system to the upstream end of the merging resin path is the same for each of the inner and outer double resin paths. The inner and outer connecting holes are arranged in the merging guide die in double layers, and the corresponding connecting holes of the inside and outside are merged in the downstream part, and these are individually arranged at the upstream end of each of the connecting holes. A die for forming a two-color film, which is equipped with a detachable closing member that closes one or several pieces at once. (2) The die for two-color film molding according to item 1, wherein the die in the confluence system is provided as a patented part so that it can be attached to and detached from other members. (3) The two-way film molding die Q according to claim 4 or 1, wherein the merging guide die is formed by a combination of several wide-end split molds.