JPS633784Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a resin film manufacturing apparatus.

FIG. 1 shows a conventional resin film manufacturing apparatus.
A die 2 is fixed to the tip of the extruder 1, and a roll 4 rotates the film 3 discharged from the die 2.
Cooled by. The positional relationship between the die 2 and the roll 4 is set so that the film 3 is suitably cooled by the roll 4. That is, the film 3 from the discharge part of the die 2 until it contacts the roll 4
If the positional relationship between the die 2 and the roll 4 is not adjusted to optimize the length and the angle at which the film 3 contacts the roll 4, the edges of the film 3 may become unstable or air may be trapped. This causes a problem that a film of desired quality cannot be obtained. For this reason, conventionally, in order to eliminate the above-mentioned problems, the film 3 has generally been discharged and cooled in the positional relationship shown in FIG. However, as shown in an enlarged view in FIG. 2, the discharge port 2a of the die 2 is provided in the vertical direction, and the film 3
When the film 3 is discharged in an inclined state, the film 3 is pressed against the edge of the discharge port 2a,
Scratches are likely to occur on the surface of the film 3. These scratches are undesirable because they impair the appearance, transparency, strength, and other qualities of the film. In order to prevent the occurrence of the above-mentioned defects, for example, if the relationship between the die 2 and the roll 4 is set as shown in Fig. 3, the occurrence of scratches can certainly be prevented, but as mentioned above, die 2
Since the positional relationship between the film 3 and the roll 4 is not optimal, problems such as air entrainment occur when the film 3 is wound onto the roll 4.

The present invention was developed by focusing on the above-mentioned problems in conventional resin film manufacturing equipment, and aims to solve the above-mentioned problems by making it possible to arbitrarily adjust the mounting angle of the die. It is said that

Hereinafter, the present invention will be explained based on FIGS. 4 to 6 of the accompanying drawings showing embodiments thereof.

FIG. 4 shows a resin film manufacturing apparatus according to the present invention. The die 10 is attached to the tip of the extruder 12 via a die attaching device 14. die 1
0, a roll 4 similar to the conventional one is provided. The die attaching device 14 can arbitrarily set the attaching angle of the die 10. FIG. 5 shows an enlarged view of the die attaching device 14. A further flange 18 is attached to the flange 16 fixed to the extruder 12 by bolts 20. A spherical space is formed between the flanges 16 and 18, and the spherical portion 22a of the member 22 fixed to the die 10 is accommodated in this space. Therefore, when the bolt 20 is loosened and the die 10 is rotated to a desired angle, the die 10 is fixed at that position by tightening the bolt 20.

FIG. 6 shows a state in which a resin film is manufactured using the resin film manufacturing apparatus according to the present invention.
As mentioned above, since the angle of the die 10 can be adjusted arbitrarily, even when the position of the die 10 is set so that the film 3 is ideally wound around the roll 4, the discharge port 10a of the die 10 and Since the film 3 can be positioned in a straight line, the film 3 will not be scratched at the edge of the discharge port 10a.

As explained above, according to the present invention, there is provided a resin film manufacturing apparatus in which molten resin is discharged from a long and narrow discharge port of a die attached to an extruder, and the discharged thin strip-shaped film is cooled by a roll. , the die is attached to the extruder via a die attachment device that can arbitrarily adjust the attachment angle of the die, and the die attachment device includes a flange fixed to the extruder side and a flange facing the flange. It has another flange connected by bolts so as to be connected, and a member fixed to the die side,
A spherical space is formed between both flanges,
A spherical part provided on a member fixed to the die side is housed in the spherical space, and a resin passageway is provided in the member fixed to the die side to communicate the extruder side and the die side. Therefore, even when the die position is set so that the film is ideally wound around the roll, the die outlet and the film discharge direction can be matched, so the film will not be damaged. , a film of good quality can be obtained.

[Brief explanation of the drawing]

Figure 1 is a diagram showing a conventional resin film manufacturing apparatus, Figure 2 is an enlarged view of a die of a conventional resin film manufacturing apparatus, and Figure 3 is a state in which the die of a conventional resin film manufacturing apparatus is moved. Figure 4 showing
The figure shows a resin film manufacturing apparatus according to the present invention, FIG. 5 shows a die attaching device of the resin film manufacturing apparatus shown in FIG. 4, and FIG. It is a diagram showing a state in which a film is manufactured. 4...Roll, 10...Die, 12...Extruder, 14...Die attachment device.

Claims (1)

[Scope of Claim for Utility Model Registration] In a resin film manufacturing device in which molten resin is discharged from a long and narrow discharge port of a die attached to an extruder, and the discharged thin strip-shaped film is cooled by a roll, the die is It is attached to the extruder via a die attachment device that can arbitrarily adjust the attachment angle of the die to the roll, and the die attachment device includes a flange fixed to the extruder side and a flange facing the flange. It has another flange connected to the flange by bolts and a member fixed to the die side, and a spherical space is formed between both flanges. A resin film manufacturing apparatus characterized in that a spherical part is housed in the spherical space, and a member fixed to the die side is provided with a resin passage that communicates the extruder side and the die side. .