JPH08309853A - Plastic laminator - Google Patents

Abstract

PURPOSE: To provide a plastic laminator capable of laminating not only a thin plastic film but also a thick base plate with a plastic plate. CONSTITUTION: A pair of upper and lower heating pressure rollers 1 and a pair of the upper and lower pull rollers 2 arranged on the downstream side of the heating pressure rollers 1 are provided. The plate cams 3 movable in the moving direction of a material to be laminated and formed into a stepped shape in a vertical direction at places separated by the distance between the shafts of the heating pressure rollers 1 and the pull rollers 2 and separating and supporting the bearings 11 of the upper and lower shafts of the heating pressure rollers 1 and the bearings 21 of the upper sand lower shafts of the pull rollers 2 are provided.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to improvements in plastic laminating equipment. In particular, it relates to an improvement that allows a plastic plate to be laminated on a thin plastic film or a thick base plate.

[0002]

2. Description of the Related Art In identification cards and the like, it is effective to attach a transparent plastic film on the surface in order to protect various items on the substrate for identification from dirt and water drops. Has been done. Then, a plastic laminating apparatus is used to attach the plastic film.

Please refer to FIG. 3. FIG. 3 is a side view of a conventional plastic laminating apparatus. In FIG. 3, reference numeral 1 is a heating / pressurizing roller, and 2 is a pull roller, each of which is composed of a pair of upper and lower sides. Reference numeral 11 is a bearing for a heating / pressurizing roller, 21 is a bearing for a pull roller, and the upper and lower bearings are pressed by a spring (not shown).
The heating / pressurizing roller 1 is rotated in the direction of the arrow, but has a heater inside or outside. When the laminated material 5 including a plurality of layers is inserted in the arrow direction between the upper and lower heating / pressurizing rollers 1, the laminated material 5 is heated / pressurized. By heating and pressurizing, the intermediate layer made of an adhesive such as polyethylene, which is stuck between the transparent plastic film and the substrate, is melted and the plastic film and the substrate are welded. And the laminated material 5 is generally thin,
Since the shape is likely to be deformed by heating, the pull roller 2 installed after the heating / pressurizing roller 1
By holding and pulling the welded material 5 to be laminated, the shape is prevented from collapsing.

[0004]

By the way, the thickness of the material to be laminated 5 has conventionally been about 200 μm to 800 μm, but in recent years, color copying and color printing have come into wide use. As the applications of laminated products have become diverse, their thickness tends to increase. That is, it has been applied to decorative building materials and advertising signs, and the materials to be laminated in these new applications are generally thick, and dedicated plastic laminating devices have been developed and used. However, even in the manufacture of thin plastic films, which is commonly used in the past,
It has become necessary to develop a plastic laminating apparatus that can be used for manufacturing a thick base plate which has been required recently.

An object of the present invention is to meet this demand, and it is used for laminating thin laminate materials which have been conventionally used, and for laminating thick laminate materials for new applications. It is to provide a plastic laminating apparatus that can be manufactured at a low price.

[0006]

The above object is to provide a pair of upper and lower heating / pressurizing rollers (1) and a pair of upper and lower pulling rollers (2) installed downstream of the heating / pressurizing rollers (1). ) And a plastic laminating apparatus having the following, each of which is movable in the moving direction of the material to be laminated, and is separated from each other by an axial distance from the heating / pressurizing roller (1) to the pull roller (2). In the vertical direction, and in each of the stepped portions, the vertical shaft bearing (11) of the heating / pressurizing roller (1) and the vertical shaft bearing of the pull roller (2) are Separated from each of (21)
This is achieved by a plastic laminating device with a supporting plate cam (3).

The stepped shape of the plate cam (3) is such that the vertical distance between the heating and pressure roller (1) and the vertical distance between the pull roller (2) are the same. It is convenient for the thin material to be laminated to be sandwiched and supported by the pull roller (2) when the thin material to be laminated is laminated.

Further, the stepped shape of the plate cam (3) is such that the plate cam (3) is moved in the moving direction of the material to be laminated, and the vertical axis of the heating / pressurizing roller (1) is If the pull roller (2) is separated and supported so as to play when the distance is separated from the minimum dimension, the pull roller (2) can be used when laminating a thick material to be laminated.
Is convenient without wasting power.

Further, even if the plate cam (3) is moved in any direction from the central position to the moving direction of the material to be laminated, the plate cam (3) separates the vertical distance between the rollers. If it is designed to have a different (thicker) shape, use the central position when laminating thin laminated materials that are frequently laminated,
In the case of laminating a thin material to be laminated that is rarely laminated, any position in the moving direction of the material to be laminated can be used, which is convenient because the device can be conveniently operated.

[0010]

The plastic laminating apparatus according to the present invention has the plate cam 3 movable in the moving direction of the material to be laminated, and the cam shape of the plate cam 3 is that of the heating / pressurizing roller 1 and the pull roller 2. It has a shape having step-like unevenness at two locations separated by an axial distance. The bearings 11 of the shafts above and below the pair of upper and lower heating / pressurizing rollers 1 are the plate cams 3.
The bearings 21 for the shafts above and below the pull roller 2 installed behind the heating / pressurizing roller 1 are supported by one step-like unevenness of the plate cam 3, and are supported by the other step-like unevenness of the plate cam 3. . Therefore, when the plate cam 3 is moved back and forth, the upper shaft of the heating / pressurizing roller 1 and the upper shaft of the pull roller 2 correspond to the two step-like irregularities of the plate cam 3 with respect to their respective lower shafts. Then go up and down. Therefore, if the vertical separation distance of the rollers is determined in accordance with the thickness of the material to be laminated, it is possible to correspond to the material to be laminated having the same number of thicknesses as the number of step-shaped irregularities of the plate cam 3. Therefore, the material to be laminated having a thickness that has been conventionally used or the material to be thickly laminated for new use can be laminated.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A plastic laminating apparatus according to an embodiment of the present invention will be described in more detail below with reference to the drawings.

FIG. 1 is a side view of a plastic laminating apparatus according to one embodiment of the present invention. In FIG. 1, 1 is a heating / pressurizing roller, and 2 is a pull roller, each of which is composed of a pair of upper and lower sides. Reference numeral 11 is a bearing of the heating / pressurizing roller 1, and 21 is a bearing of the pull roller 11. The lower shaft bearing 11 of the heating / pressurizing roller 1 and the lower shaft bearing 21 of the pull roller 11 are fixed to a frame (not shown). Reference numeral 3 denotes a plate cam, which is installed so as to separate the upper and lower bearings 11 of the heating / pressing roller and the upper and lower bearings 21 of the pull roller.

The plate cam 3 has two stepped cams, and the distance between the two stepped cams is the same as the axial distance between the heating / pressurizing roller 1 and the pull roller 2. ing. The upper and lower bearings 11 of the heating / pressing roller and the upper and lower bearings 21 of the pull roller are attracted to each other by an elastic means such as a spring (not shown). The bearing 11 of the upper shaft and the bearing 21 of the upper shaft of the pull roller 11 are fixed to a mount (not shown) via the plate cam 3.

Reference numeral 4 denotes a lever, which is designed to be rotatable about the support shaft 41 in the direction of the arrow. When the lever 4 is rotated, the pin 31 of the plate cam 3 is guided by the elongated hole 42 provided in the lever 4, and the plate cam 3 slides in the moving direction of the material to be laminated as shown by the arrow. When the plate cam 3 moves in the moving direction of the material to be laminated, the vertical distance between the heating / pressurizing roller 1 and the pull roller 2 is adjusted according to the shape of the stepped cam of the plate cam 3. .

Therefore, if the distance between the upper and lower axes is adjusted according to the thickness of the material to be laminated (not shown) to be laminated, the heat energy required for the lamination by the heating / pressurizing roller 1 is adjusted. Then, the pressing force necessary for the lamination is applied, and the pull roller 2 can apply the tension necessary for preventing the deformation.

Further, as shown in FIG. 1, a step corresponding to the thin thickness which is most frequently laminated is arranged at the central position of the stepped cam, and on the left and right sides in the figure (the material to be laminated moves). By arranging a step corresponding to a large thickness (in the direction), it can be excellent in practical use.

See FIG. 2. FIG. 2 is a side view of a plastic laminating apparatus using a plate cam 3 having a stepped shape different from that of FIG. In FIG. 2, when the vertical distance between the shafts is the shortest, both the heating / pressurizing roller 1 and the pull roller 2 operate in the same manner as in FIG.
A material to be laminated (not shown) having a thickness of about 200 μm to 800 μm is laminated. When the plate cam 3 is moved to the left and right in the figure (the direction in which the material to be laminated moves), the vertical distance between the heating and pressing rollers 1 is the thickness of the material to be laminated (not shown). Correspondingly separated, the vertical distance between the upper and lower axes of the pull roller 2 is greatly separated, and the pull roller 2 is a material to be laminated (not shown).
Is put in a playing state without exerting any force on. This position is suitable for laminating a material to be laminated (not shown) having a substrate that is thick and does not lose its shape, such as a veneer plate or a tile.

[0018]

As described above, according to the plastic laminating apparatus according to the present invention, the plate cams having the stepwise cams are provided at two places, and the heating / pressurizing roller and the pulling roller paired in the upper and lower direction are provided. Since the roller and the roller are separated from each other and supported by the two stepped cam portions at the upper and lower axial distances, the stepped cams of the required number of steps are cut according to the thickness of the material to be laminated. If so, it is possible to laminate from a thin laminated material to a thick laminated material.
It is also possible to play pull rollers according to the material to be laminated and avoid applying unnecessary tension.

[Brief description of drawings]

FIG. 1 is a side view of a plastic laminating apparatus according to an embodiment of the present invention.

FIG. 2 is a plastic laminating apparatus according to another embodiment of the present invention.

FIG. 3 is a side view of a conventional plastic laminating apparatus.

[Explanation of symbols]

 1 Heat / Pressure Roller 2 Pull Roller 3 Plate Cam 4 Lever 5 Laminated Material 11 Heat / Pressure Roller Bearing 21 Pull Roller Bearing 31 Pin 41 Support Shaft 42 Long Hole

Claims (4)

[Claims] 1. A pair of upper and lower heating / pressurizing rollers (1)
And a pair of upper and lower pull rollers (2) installed downstream of the heating / pressurizing roller (1), the plastic laminating apparatus being movable in the moving direction of the material to be laminated, The pressure roller (1) and the pull roller (2) are stepped in the vertical direction at each of the locations separated by the axial distance, and at each of the stepped portions,
Vertical bearing (1) of the heating / pressurizing roller (1)
A plastic laminating apparatus having a plate cam (3) for separating and supporting each of (1) and each of the vertical shaft bearings (21) of the pull roller (2). 2. The plate cam (3) has a vertical axis distance between the heating / pressurizing roller (1) and the pull roller (2).
The plastic laminating apparatus according to claim 1, wherein the plastic laminating apparatus is separated and supported with the same vertical axis distance. 3. The step-like shape of the plate cam (3) moves the plate cam (3) in the moving direction of the material to be laminated,
The plastic according to claim 1, wherein the pull roller (2) is separated and supported so that the pull roller (2) plays when the distance between the vertical axis of the heating / pressurizing roller (1) is separated from the minimum dimension. Laminating equipment. 4. No matter which direction the plate cam (3) is moved from the center position to the direction of movement of the material to be laminated, the plate cam (3) separates the distance between the vertical axes of the rollers. It has a shape, It is characterized by the above-mentioned.
The plastic laminating apparatus described.