JPH0726100Y2 - Lamination device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lamination device for laminating a high temperature film extruded from a film forming device on a substrate such as paper.

[0002]

2. Description of the Related Art In a conventional lamination apparatus, a base material 1 supplied from a rewinding apparatus (not shown) and a film 2 in a high temperature state extruded from a film forming apparatus using a T-die 8 and a cooling roller 3 are provided. The laminated base material 5 is laminated at the contact point P ₁ with the pressure roller 4 and is transferred while cooling the laminated base material 5 along the peripheral surface of the cooling roller 3 and is cooled by the peeling roller 6 to the cooling roller 3.
It is peeled off and wound up by a winding device (not shown).

In this case, the cooling roller 3 and the peeling roller 6 are driven so as to have the same peripheral speed.
For example, the peeling roller 6 is configured to rotate by a frictional force between the peeling roller 6 and the cooling roller 3 or to have the same peripheral speed by a conduction means such as a belt or a chain.

Therefore, between the contact point P ₁ and the contact point P ₂ between the cooling roller 3 and the peeling roller 6, the laminated base material 5 is in close contact with the peripheral surface of the cooling roller 3 and is sufficiently cooled. The laminated base material 5 from the roller 6 onward depends on the winding speed of a winding device (not shown) and may be loosened around the peeling roller 6 as shown by the one-dot chain line in FIG. In such a case, it may cause wrinkles on the laminated base material 5.

As a means for solving such a drawback, as shown in FIG. 5, a second pressure roller 7 is arranged on the side opposite to the cooling roller 3 with respect to the peeling roller 6, and the second pressure is applied from the contact point P ₂ . Contact point P with roller 7
_During the period up to ₃ , the laminated base material 5 is configured to be transferred while being in close contact with the peripheral surface of the second pressure roller 7.

In this way, the looseness of the laminated base material 5 up to the winding device is easily absorbed by a dancer roller or the like (not shown), and the cause of wrinkling is almost eliminated.

[0007]

However, in this case, the peeling roller 6 directly contacts the cooling roller 3 made of metal when the device is not used, and the peripheral surface of the cooling roller 3 is damaged. Since this is not preferable, the peeling roller 6 always uses a roller coated with an elastic material such as rubber.

Further, since the circumferential direction of the cooling roller 3 is suddenly changed in the opposite circumferential direction of the peeling roller 6, the substrate 1 and the film 2 are easily peeled from each other particularly when the substrate 1 is thick. There is.

When printed on both ends of the base material 1, the peripheral portion is thick due to the presence or absence of printing ink or the film 2 extruded from the T die 8 due to the neck-in phenomenon when the temperature is high. In some cases, the laminated base material 5 has a partially different thickness.

Therefore, the pressing force is partially different between the peeling roller 6 and the second pressure roller 7 and especially at the both end portions than the intermediate portion, and the laminating substrate 5 adheres closely to the peripheral surface of the peeling roller 6. It may be difficult to maintain the uniformity.

The present invention solves the above-mentioned problems, and at least the entire surface of the laminated base material 5 except for both ends thereof is brought into close contact with the peripheral surface of the peeling roller 6 with a uniform pressing force and is transferred from the cooling roller 3. An object of the present invention is to provide a lamination device intended to prevent peeling between the substrate 1 and the film 2 by performing peeling slowly and reduce peeling noise generated when peeling from the cooling roller 3.

[0012]

In order to solve the above problems, a base material 1 and a high temperature film 2 extruded from a film forming apparatus are laminated between a cooling roller 3 and a first pressure roller 4. A peeling roller 11 for peeling the laminated laminated base material 5 from the cooling roller 3, and the peeling roller 1 so that the laminated base material 5 is transferred in close contact with the peeling roller 11.
1 and the laminating substrate 5 to the peeling roller 1
In the lamination device provided with the second pressure roller 12 that presses against 1, the peeling roller 11 is a rigid roller, and the peripheral surface thereof is arranged at a position separated from the peripheral surface of the cooling roller 3. The second pressure roller 12 has a peripheral surface made of rubber, and is configured such that when air is pressed into the second pressure roller 12, the peripheral surface excluding both ends is expanded and comes into contact with the peripheral surface of the peeling roller 11.

[0013]

As described above, since the cooling roller 3 and the peeling roller 11 are separated from each other, the laminated base material 5 is not rapidly peeled from the cooling roller 3 and is in a slow peeling state, and the base material 1 and the film are separated. Not only is it difficult to peel off from No. 2, but also low peeling noise due to slow peeling.

Further, since the both ends of the second pressure roller 12 do not contact the peeling roller 11, even if the both ends of the second pressure roller 12 are likely to become thick, the laminating base 5 is pulled with a uniform pressing force at the middle portion. A complete transfer to the winding device is feasible.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a side view of an essential part of a lamination device of the present invention, FIG. 2 is a relationship diagram of a peeling roller and a second pressure roller, and FIG. 3 is a sectional view of the second pressure roller.

Comparing the side view of the main part of the apparatus of the present invention of FIG. 1 with the side view of the main part of the conventional improved apparatus of FIG. 5, in FIG.
And the second metal pressure roller 7 are arranged in close contact with the rubber peeling roller 6.

On the other hand, in the apparatus of the present invention, as shown in FIG. 1, the metal peeling roller 11 is arranged with respect to the cooling roller 3 in such a manner that their peripheral surfaces are separated from each other. Further, the peripheral surfaces of the peeling roller 11 and the second pressure roller 12 are also arranged in a state of being separated from each other.

As shown in FIG. 3, the second pressure roller 12 in this case has a plurality of vent holes 121a formed in the circumferential direction in the radial direction, and the outer circumferences of both ends are large and the middle part is thin. Diameter metal cylinder 12a and this metal cylinder 12a
Both ends are closed by shafts 12b to form a roller-shaped hollow body. The shaft 12b has a vent hole 121b formed in the center line so that air can be sent from the outside. Further, the hollow body has a cylindrical surface adapted to the large diameter portions at both ends. Rubber 12c is fitted.

As a result, when not in use, the cooling roller 3 made of metal, the peeling roller 11 made of metal, and the second pressure roller 12 made of rubber on the outer periphery are held in a state of not contacting each other.

In use, the second pressure roller 1
In FIG. 2, when air is sent into the hollow body from the ventilation hole 121b of the shaft 12b by an air source (not shown), the cylindrical rubber 12c expands through the ventilation hole 121a and comes into contact with the peeling roller 11.

In this case, the second pressure roller 12
Does not allow air to enter the protruding large-diameter portions of both ends, and the outer diameter does not change, but the thin-diameter portion of the middle portion expands the outer diameter by pushing the cylindrical rubber 12c from the inside with the air.
The laminated base material 5 sandwiched between the peeling roller 11 and the second pressure roller 12 is uniformly pressed except for both end portions which tend to be thick and is transferred to a winding device (not shown).

[0022]

As described above, since the cooling roller 3 and the peeling roller 11 are separated from each other, the laminating substrate 5 is slowly peeled from the cooling roller 3 and the laminating substrate 5
The prevention of inter-layer delamination and reduction of delamination noise are large.

Further, since the both ends of the second pressure roller 12 do not come into contact with the peeling roller 11, wrinkles do not occur when the laminated base material 5 is pressed and transferred, which tends to be thick, and complete transfer is possible. It is possible.

[Brief description of drawings]

FIG. 1 is a side view of a main part of a lamination device of the present invention.

FIG. 2 is a relative relationship diagram of a peeling roller and a second pressure roller.

FIG. 3 is a sectional view of a second pressure roll.

FIG. 4 is a side view of a main part of a conventional lamination device.

FIG. 5 is a side view of a main part of a conventional improved lamination device.

[Explanation of symbols]

 1 Base Material 2 Film 3 Cooling Roller 4 First Pressure Roller 5 Laminate Base Material 11 Peeling Roller 12 Second Pressure Roller 12a Metal Cylinder 12b Shaft 12c Cylindrical Rubber

Claims (1)

[Scope of utility model registration request] 1. A peeling roller for laminating a base material and a high temperature film extruded from a film forming device between a cooling roller and a first pressure roller, and peeling the laminated base material laminated from the cooling roller. In a lamination device provided with a second pressure roller that presses the laminate base material against the peeling roller so that the laminate base material is transferred in close contact with the peeling roller,
The peeling roller is a metal roller, the peripheral surface of which is arranged at a position separated from the peripheral surface of the cooling roller, and the second pressure roller has a peripheral surface made of rubber,
A lamination device, wherein a peripheral surface excluding both ends is expanded by pressurizing air into the interior so that the peripheral surface abuts on the peripheral surface of the peeling roller.