JPH057436U - Cooling roll support device for extrusion laminator - Google Patents

Abstract

(57) [Summary] [Purpose] When replacing the cooling roll of the extrusion laminator with one with an optimum surface condition, it is possible to minimize the extrusion stop time of the T die that is extruding the molten resin film. The purpose is to [Structure] Support base 1 supporting cooling roll 4
4, the bearing of the cooling roll 4 is the bearing portion 141 only in the lower half, and the members such as the bearing cover are omitted on the upper side.

Description

[Detailed description of the device]

The present invention relates to a laminator in which a molten resin is extruded into a film shape by a T-die on a base material such as paper and then spread.

[0002]

[Prior Art]

 The film extruded from the T-die at a high temperature is superposed on a substrate such as paper, pressed by a cooling roll and a press roll to be laminated, and simultaneously cooled by the cooling roll to be a coating substrate.

In this case, a plurality of cooling rolls having different degrees of surface finish are prepared according to the product to be laminated, and the optimum cooling roll is selected and used depending on the product.

FIG. 2 is a block diagram of an example of a conventional laminator. The film 2 extruded from the T-die 1 is sent to the contact point between the cooling roll 4 and the press roll 5 in a state of being superposed on the substrate 3 such as paper. This contact point is the pressure application point P between the film 2 and the substrate 3. The press roll 5 is pressed against the cooling roll 4 via the backup roll 7 by an elastic pressure member 6 such as an air spring that can easily adjust the elastic pressure. The film 2 and the base material 3 which have passed through the above-mentioned spreading pressure point P are laminated to become a laminated base material 3a, which moves with the rotation of the cooling roll 4 and is wound by the winding device (not shown) via the guide rolls 8 and 9. Go on.

In this case, since the laminated base material 3a has various kinds of surface states, the cooling roll 4 having the optimum surface state for the type is selected and used.

To this end, the arm 10 holding the guide roll 8 is retracted by the air cylinder 11 to the position indicated by the alternate long and short dash line in FIG. 2, the bolts 12 and 12 are removed, the bearing cover 13 is removed, and the cooling roll 4 is removed. Is lifted using a crane or the like, exchanged for the optimum cooling roll 4, and is installed again in the reverse order of the above procedure.

[0007]

[Problems to be solved by the device]

 As described above, it takes a lot of time and labor to replace the cooling roll 4 with the optimum one. Since the extrusion of the molten resin from the T-die 1 is stopped during this replacement time, the molten resin stagnation in the T-die 1 may overheat and burn if a long time is taken.

In such a state, not only the replacement of the cooling roll 4 but also the cleaning of the T die 1 becomes necessary, and the work efficiency is significantly reduced.

The present invention solves the above-mentioned problem, and holds the cooling roll 4 so that the cooling roll 4 can be replaced in the shortest possible time so as not to cause resin scorching inside the T die 1. An object is to provide a device.

[0010]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, in an extrusion laminator, a bearing of a cooling roll 4 that cools after laminating a high-temperature molten resin film 2 extruded from a T die 1 on a substrate 3 such as paper Is composed of only the lower support base 14.

[0011]

【Example】

 FIG. 1 is a partial side view centering on the cooling roll 4 of the laminator of the present invention. The bearing portion 141 of the support base 14 of the cooling roll 4 forms the bearing of the cooling roll 4 from the center line of the cooling roll 4 to the lower side, and the shaft width from the center line to the upper side extends slightly parallel to the upper side. There is. Therefore, the bearing cover 13 and the tightening bolt 12 are not present unlike the conventional bearing portion.

A driving timing belt is provided on a pulley (not shown) at one end of the shaft of the cooling roll 4 in a downward or obliquely downward direction. Since a downward force is applied to the cooling roll 4, the cooling roll 4 is applied. The force that floats up does not work.

[0013]

[Effect of the device]

 As described above, when the cooling roll 4 is replaced, the guide roll 8 is simply retracted, and the cooling roll 4 can be immediately lifted and replaced, so that the replacement can be performed in a short time.

As a result, the extrusion stop time of the molten resin from the T-die 1 is short, the resin does not scorched inside the T-die 1, and the cleaning time of the T-die 1 can be omitted.

[Brief description of drawings]

FIG. 1 is a side view of a cooling roll portion of a laminator of the present invention.

FIG. 2 is a side view of a conventional laminator.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 T die 2 Film 3 Base material 3a Laminate base material 4 Cooling roll 5 Press roll 14 Support stand 141 Bearing part

Claims (1)

[Claims for utility model registration] [Claim 1] In an extrusion laminator, a bearing of a cooling roll that cools after laminating a high temperature molten resin film extruded from a T-die on a substrate such as paper is placed on the lower side. A cooling roll support device for an extrusion laminator, which is configured by only the support base of