JPH0858049A - Laminator - Google Patents

Abstract

PURPOSE: To provide a laminator with which overlapped sending of objects does not occur, only a specific quantity of the objects can be superposed by their end parts correctly, setting of a film is simple, curling after lamination can be prevented, and cutting of the film can be done quickly. CONSTITUTION: An object supply section 10 for supplying in sequence sheet-like objects 1 to be laminated, a film supply section 30 for supplying a continuous laminate film 2, a lamination section 50 for attaching with pressure the laminate film 2 to one face of the object 1, a curl correction section 70 which is arranged at a back stage of the lamination section 50 and corrects the curl of the object 1 on which the laminate film 2 is laminated, and a cutting section 90 for cutting the laminate film 2 at every object 1 are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminator for laminating a laminate film on an object such as a book cover or a restaurant menu.

[0002]

2. Description of the Related Art Conventionally, as this type of laminator, there is known a laminator in which a continuous laminating film is laminated only on one side of a sheet-shaped object.

Further, as a cutting device for such a laminator, for example, "a laminating film is laminated on a sheet which is continuously fed with an edge portion overlapped by a predetermined amount and continuously fed from a laminating section. Adjustment is made so that the sheet is intermittently transferred at a transfer section with a constant tension, the sheet overlapping section is detected, this is positioned at the cutting position, and one side end is opened to insert the cutting member. A configuration is disclosed in which the laminated sheet is moved along the overlapping portion to cut the laminated sheet (Japanese Patent Laid-Open No. 4-372393).

[0004]

In the above-mentioned conventional laminator, since the laminate film is laminated only on one side of the object, when the objects are spaced from each other, the adhesive of the laminate film causes the pressure-sensitive adhesive roller. Since it adheres to the object, it was laminated while partially overlapping the edges of the object. However, when the lengths of the objects are different, there is a problem in that the amount of superposition varies, and the work of the laminating process and the cutting process is difficult. For this reason, in particular, if two objects are fed, the processing steps such as the above-mentioned overlapping will be hindered.

Further, since the laminate film is stuck on only one side of the object, there is a problem in that the laminate film shrinks when it is heated and laminated and the temperature returns to room temperature, and the film curls. there were.

Further, when the roll of the laminated film is set in the film supply section and the width of the film is wide, the hollow core must be inserted into the fixed shaft from the side, and the working space is reduced. It is widely needed and
There was a problem that it was difficult to set.

Furthermore, the invention of Japanese Patent Laid-Open No. 4-372393 has a problem that the processing speed becomes slow because the film must be stopped when the film is cut.

A first object of the present invention is to reliably feed a laminating object by accurately overlapping the end portions by a predetermined amount even if the objects have different lengths without feeding two sheets. It is to provide a laminator that can. A second object of the present invention is to provide a laminator that does not curl when a film is laminated on one side. A third object of the present invention is to provide a laminator that facilitates setting of laminated films. A fourth object of the present invention is to provide a laminator having a high cutting speed for laminating films.

[0009]

In order to solve the above-mentioned problems, the present invention according to claim 1 supplies an object supply section for sequentially supplying sheet-shaped objects to be laminated and a continuous laminate film. In a laminator provided with a film supply unit and a laminating unit that press-bonds the laminate film to one surface of the target object, the target object supply unit mounts a plurality of the target objects, and the uppermost sheet of the target object. A mounting unit that pushes up the eyes to the first reference position, a holding unit that sucks and holds the uppermost sheet of the object, and a first unit that lowers the holding unit to the first reference position. A second operation of raising the holding portion from the first reference position to the second reference position while rotating so as to return to the moving direction and the lower surface of the object in the moving direction while facing the moving direction. I'll do it Wherein a driving unit for driving the holding portion, when the driver is performing the second operation,
A separation unit for separating the uppermost sheet and the next sheet of the object,
It is characterized by having.

According to a second aspect of the present invention, in the laminator according to the first aspect, the drive section is lower than the second reference position before the laminating section while moving the holding section in the traveling direction. 3rd to lower to the reference position of 3
Is performed, and the leading edge of the next sheet is overlapped with the upper edge of the trailing edge of the sheet immediately before the object already supplied to the laminating unit.

The invention of claim 3 is the invention of claim 1 or claim 2.
In the laminator according to claim 1, comprising a trailing edge detection unit for detecting the trailing edge of the immediately preceding sheet of the object already supplied to the laminating unit, the drive unit, the trailing edge detection unit is the immediately preceding sheet. After the trailing edge of the eye is detected, the running of the next sheet is started such that the leading edge of the next sheet overlaps the trailing edge of the immediately preceding sheet by a predetermined amount.

According to a fourth aspect of the present invention, an object supply unit that sequentially supplies the sheet-shaped objects to be laminated, a film supply unit that supplies a continuous laminate film, and the laminate film on one side of the object. In a laminator provided with a laminating section to be pressure-bonded, the film supply section is arranged with a predetermined distance shorter than a core diameter of the laminating film, and two placing rollers contacting the outer periphery of the laminating film. And a film detection unit that is disposed between the placing rollers and that detects that the outer periphery of the laminate film is within a predetermined range.

According to a fifth aspect of the present invention, an object supply unit that sequentially supplies sheet-shaped objects to be laminated, a film supply unit that supplies a continuous laminate film, and the laminate film on one side of the object. In a laminator provided with a laminating section to be crimped, further provided with a curl correcting section which is provided in a subsequent stage of the laminating section and corrects the curl of the object laminated with the laminating film, and the curl correcting section, A correction roller that bends the object to the side where the laminate film is not laminated, an angle adjustment roller that changes the wrapping angle around the correction roller, and the object and the laminate film that are corrected by the correction roller. And a cooling unit for cooling.

According to a sixth aspect of the invention, in the laminator according to the fifth aspect, the cooling section is movable along with the movement of the angle adjusting roller.

According to a seventh aspect of the present invention, an object supply unit that sequentially supplies sheet-shaped objects to be laminated, a film supply unit that supplies a continuous laminate film, and the laminate film on one side of the object. In a laminator provided with a laminating section to be pressure-bonded, the laminating section is further provided with a cutting section that is provided after the laminating section and cuts the laminate film for each object, and the cutting section is an overlapping section of the objects. A rotary cutter that forms a trigger for cutting at the end of the laminate film corresponding to, a superposition detection unit that detects the superposition unit of the object, and the superposition detection unit detects the superposition unit. Sometimes, a moving cutter that moves in a direction substantially perpendicular to the film running direction is provided.

[0016]

According to the present invention, when the object to be laminated is supplied, the lower surface is raised with respect to the traveling direction, and the space between them is separated by blowing air or the like, so that double feeding does not occur. . Even when the lengths are different, the trailing edge of the immediately preceding sheet of the object is detected and the traveling of the next sheet is started, so that the edges can be accurately overlapped by a predetermined amount. It is possible, and the adhesive of the laminated film does not adhere to the roller or the like in the subsequent process.
Further, since the correction roller causes the film to be curved on one side not covered with the film, and at the same time is cooled by the cooling unit, curling does not occur. Furthermore, since the laminated film can be set only by placing it on the placing roller, it does not take a working space and is easy to set. Furthermore, waiting for the overlapping part of the object upstream of the film running direction, detecting the overlapping part, the rotary cutter creates a trigger part,
Since the moving cutter immediately starts traveling, the cutting speed of the laminated film can be increased.

[0017]

EXAMPLES Examples will be described below with reference to the drawings.
This will be described in more detail. 1 to 4 are external views showing an embodiment of a laminator according to the present invention, FIG. 1 is a front view, FIG. 2 is a plan view, FIG. 3 is a right side view, and FIG. 4 is a left side view. FIG. 5 is a schematic diagram showing the internal structure of the laminator according to this embodiment. The laminator of this embodiment is shown in FIG.
As shown in FIG. 4, the laminating object supply unit 10, the laminating unit 30, the film supply unit 50, and the curl correction unit 7
0, a cutting section 90, and the like.

The laminating object supplying section 10 is a section for successively supplying the sheet-shaped objects 1 to be laminated.
The mounting unit 11 mounts a plurality of objects 1 and detects a chain (not shown) by a sensor (not shown) so that the uppermost sheet of the objects is at the first reference position A1. It is configured to be pushed up using. In addition, this mounting portion 1
1 is a guide portion 12 that is variable according to the width of the object 1.
Are provided (see FIG. 2).

The holding unit 13 is provided with a plurality of vacuum suction disks 14 for sucking the uppermost sheet of the object 1 (see FIG. 4).
The number of vacuum suction disks 14 to be used can be selected according to the width of the object 1 by closing a cock (not shown).

6 to 11 are views showing the drive unit of the laminating object supply unit of the laminator according to this embodiment, FIG. 6 is a structural diagram, and FIGS. 7 to 9 are explanatory diagrams of the operation of the cam unit. ,
FIG. 10 is an explanatory diagram of the peeling operation, and FIG. 11 is an explanatory diagram of the chasing operation. The drive unit 15 is provided in the machine frame 16, a machine frame 16, a transfer cylinder 17 that moves the machine frame 16 in the transfer direction of the object, a vertical movement cylinder 18 that moves the transfer cylinder 17 in the vertical direction, and the machine frame 16. A fixed frame 19 having a guide block 19a and a fixed frame 19 swingably provided,
A swing frame 20 connected to a support tube 14a that supports the vacuum suction disk 14 and sucks air, and a cam member that is rotatably provided on the swing frame 20 around a shaft 21a and has a guide roller 21b at the other end. 21 and a biasing member 22 such as a spring that biases the cam member 21 counterclockwise.

The drive unit 15 drives the vertically moving cylinder 18 so as to descend (arrow B1) to move to the first reference position A1.
The vacuum suction disk 14 is lowered to [see FIG. 10 (A)] (first operation). At this time, the guide roller 21b of the cam member 21 descends along the guide block 19a, and the lower surface of the vacuum suction disk 14 is kept horizontal.

Next, the conveying cylinder 17 returns in the direction opposite to the traveling direction (see the arrow B2 in FIG. 8), and the vertical moving cylinder 1
8 is driven to rise (see arrow B3 in FIG. 9),
The guide roller 21b of the cam member 21 abuts against the lower surface of the guide block 19a, the cam member 21 rotates counterclockwise as shown in FIG. 9, and the swing frame 20 tilts by a predetermined angle. For this reason, the vacuum suction disk 14 is
The first reference position A1 rises to the second reference position A2, and the lower surface inclines while rotating so that the lower surface of the object 11 faces the traveling direction (second operation). At this time,
As shown in FIG. 10, the separating unit 23 blows air between the uppermost sheet 1-1 and the next sheet 1-2 of the target object 1 to obtain the uppermost sheet 1
-1 is separated.

Next, the drive section 15 moves the vacuum suction disk 14 in the traveling direction, as shown in FIG. 11 (B).
In front of the nip rollers 51 and 52 of the laminating unit 50, it is lowered to a third reference position A3 which is lower than the second reference position A2 (third operation). At this time, the top edge of the topmost sheet 1-1 of the object 1 is to be overlaid on the upper side of the trailing edge of the sheet 11-0 immediately before the object 11 already supplied to the laminating unit 50. . From the second reference position A2 to the third
The reason for lowering it to the reference position A3 is
This is because -1 is surely overlapped on the upper side of the rear end of the immediately preceding sheet 11-0.

Next, the operation of the drive unit at this time will be described. As shown in FIG. 11, the trailing edge detection unit 24 detects the first sheet 1- immediately before the object 1 already supplied to the laminating unit 50.
This is for detecting the trailing edge of 0. The drive unit 15 is
After the trailing edge detection unit 24 detects the trailing edge of the immediately preceding sheet 1-0, the leading edge of the next sheet 1-1 travels so that it overlaps the trailing edge of the immediately preceding sheet 1-0 by a predetermined amount. The transport cylinder 17 is driven so as to start. By doing so, even if the length of the object 1 is different, the length of the overlapping portion is always constant.

Next, the film supply section will be described with reference to FIGS. 1 to 3, FIG. 5 and FIG. Figure 12
It is a schematic diagram which shows the film supply part of the laminator which concerns on a present Example. The film supply unit 30 is a part for supplying the continuous laminated film 2. The film supply unit 30 is arranged with a predetermined distance C2 shorter than the diameter C1 of the winding core 2a of the laminated film 2 [FIG.
2 (B)], and two mounting rollers 31 and 32 contacting the outer periphery of the roll of the laminated film 2. As shown in FIG. 2, the side guide rollers 34 and 35 are rollers that guide both ends of the roll of the laminated film 2, and by rotating the handle 36, the interval can be varied by a rack and pinion mechanism (not shown) ( The side guide rollers 34-1 and 35-1 in FIG. 3) and the laminated film 2 having different widths can be used. In addition, the side guide roller 34 is the laminated film 2
When the is mounted, it can be tilted sideways (see the side guide roller 34-2 in FIG. 3).

The film detecting section 33 includes a mounting roller 31,
It is a part which is arranged between 32 and detects that the outer periphery of the laminate film 2 is within a predetermined range. The film detection unit 33 has a distance between the distance D1 [see FIG. 12 (A)] for the maximum winding diameter of the laminated film 2 and the distance D2 [see FIG. 12 (B)] for only the winding core 2a. It is a sensor that detects the presence of an object, and when there is only the winding core 2a (or when the roll itself of the laminate film 2 is removed), there is no object in that range, so an alarm is issued by a buzzer or lamp. You can

The laminating unit 50, as shown in FIG.
The laminated film 2 supplied from the film supply unit 30 is a part that is pressed against one side of the object 1 supplied from the laminated object supply unit 10 by thermocompression bonding rollers 53 and 54. 51 and 52 are nip rollers, and 55 is
The tension roller 56 for giving tension to the laminate film 2 is an idle roller.

13 and 14 are views showing a curl correction unit of the laminator according to this embodiment, FIG. 13 is a configuration diagram, and FIG. 14 is an operation explanatory diagram. The curl correction unit 70
As shown in FIG. 5, the object 2 provided at the latter stage of the laminating unit 50 and laminated with the laminating film 2
This is the part that corrects the curl. This curl correction unit 70
Is a correction roller 71 that bends the object 1 to the side where the laminate film 2 is not attached, an angle adjustment roller 72 that changes the wrap angle around the correction roller 71, and an object that is curled by the correction roller 71. 1 and the cooling unit 73, 74 such as a fan for cooling the laminated film 2
And so on. In addition, 75 is a pressing roller, 7
Reference numerals 6 and 77 are nip rollers.

The cooling units 73 and 74 are provided with the angle adjusting roller 72.
Can be moved by the following moving mechanism. The angle adjusting roller 72 is rotatably attached to the vertical moving frame 78. A swing frame 79 is rotatably attached to a shaft 78a at the lower right end of the vertical movement frame 78. The swing frame 80 is attached rotatably around a shaft 80a, and a cooling unit 73 is attached to the swing frame 80. The swing frame 79 and the swing frame 80 are rotatably connected to each other by a shaft 79a. A swing frame 81 to which the cooling unit 74 is attached is rotatably attached to the shaft 78b at the upper end of the vertical movement frame 78. On the shaft 81a at the other end of the swing frame 81, the swing frame 8
2 is rotatably attached. This swing frame 82
Is attached so as to be rotatable around a shaft 82a.

Since the moving mechanism is constructed as described above, the angle adjusting roller 72 is set to E1 as shown in FIG.
From E5 to E5, the curl correction roller 71
Wrap around θ changes. At this time, the cooling unit 73
Moves from F1 to F5, and the cooling unit 74 moves from G1 to G5.
Go to 5. Therefore, the curl correction degree of the object 1 and the laminate film 2 can be adjusted, and at that time, the air can be blown at an angle with the best cooling efficiency.

FIG. 15 is a view showing a cutting portion of the laminator according to this embodiment. The cutting unit 90 is the laminating unit 50.
This is a part provided in the subsequent stage (in the present example, in the subsequent stage of the curl correction unit 70) and cuts the laminate film 2 for each object 1. The cutting section 90 includes a cutting section body 91,
A rotary cutter 9 which is provided in the cutting portion body 91 and forms a trigger J for cutting at the end of the laminate film 2 corresponding to the overlapping portion H of the object 1-m and the object 1-n.
1 and the superposition detecting section 94 for detecting the superposition section H of the object 1, and the superposition detection section 94 for the superposition section H.
Is detected, the moving cutter 93 and the like move in a direction substantially orthogonal to the film traveling direction.
In addition, 95 and 96 are feed rollers.

The reason why the superposition detecting sections 94 are provided at both ends of the moving cutter 93 is that the moving cutter 93 reciprocates, which makes it possible to eliminate the return time and increase the cutting processing speed. Overlap detection unit 94
Is a projector 94 on the side of the cutting section body 91 and on the side of the moving cutter 93.
A photoelectric sensor having A and a light receiver 94B is shown in FIG.
As shown in FIG. 5A, the object 1 and the laminate film 2 are arranged so as to be sandwiched between them.

When the cutting section body 91 moves toward the center of the object 1 [upward in FIG. 15 (B1)], the superposition detecting section 94 detects the end of the object 1 and stops, and the rotary cutter 92. Waiting for the superposition section H to come while rotating. As shown in FIG. 15 (B2), the overlapping portion H
The laminated film 2 at the portion of
As shown in 3), when the moving cutter 94 enters the lower side of the object 1-m and there is no shield between the overlay detection units 94, it is determined that the moving cutter 94 has passed the overlay unit H, and the moving cutter 94 moves. The cutter 93 moves in the direction of arrow K to cut the laminated film 2. The moving cutter 93 stops when it moves to the other end, and this time cuts from the other end toward you and repeats the same operation. In this way, since it is turned away, it does not require a large force, so the device can be downsized, and since it is not necessary to stop the film running, the cutting processing speed can be increased. .

[0034]

As described above in detail, according to the present invention, when the object to be laminated is supplied, the lower surface is raised with respect to the traveling direction, and the space between them is separated by the separating portion. Does not cause Also,
Even if the lengths are different, the end portions can be accurately overlapped by a predetermined amount, so that the adhesive of the laminate film does not adhere to the roller or the like in the subsequent process.

Further, since the correction roller causes the film to be curved on one side not having the film adhered thereto and is cooled at the same time, curling does not occur even when the temperature returns to room temperature.

Further, since the laminated film can be set only by placing it on the placing roller, it is easy to set.

Furthermore, since the moving cutter immediately starts traveling upon detecting the overlapping portion of the objects, the cutting speed of the laminated film is increased.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a laminator according to the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a right side view of FIG.

FIG. 4 is a left side view of FIG.

FIG. 5 is a schematic diagram showing an internal structure of a laminator according to the present embodiment.

FIG. 6 is a configuration diagram showing a drive unit of a lamination target object supply unit of the laminator according to the present embodiment.

FIG. 7 is an explanatory view showing the operation of the cam portion of the lamination target object supply portion of the laminator according to the present embodiment.

FIG. 8 is an explanatory diagram showing the operation of the cam portion of the lamination target object supply portion of the laminator according to the present embodiment.

FIG. 9 is an explanatory view showing the operation of the cam portion of the lamination target object supply portion of the laminator according to the present embodiment.

FIG. 10 is an explanatory diagram showing a peeling operation of a lamination target object supply unit of the laminator according to the present embodiment.

FIG. 11 is an explanatory diagram showing a chasing operation of a lamination target object supply section of the laminator according to the present embodiment.

FIG. 12 is a schematic view showing a film supply unit of the laminator according to this example.

FIG. 13 is a configuration diagram showing a curl correction unit of the laminator according to the present embodiment.

FIG. 14 is an operation explanatory diagram showing a curl correction unit of the laminator according to the present embodiment.

FIG. 15 is a diagram showing a cutting part of the laminator according to the present embodiment.

[Explanation of symbols]

 10 Laminating Object Supply Section 30 Laminating Film Supply Section 50 Laminating Section 70 Curl Correction Section 90 Cutting Section

Claims (7)

[Claims] 1. An object supply unit that sequentially supplies sheet-shaped objects to be laminated, a film supply unit that supplies a continuous laminate film, and a laminating unit that press-bonds the laminate film to one side of the object. In the laminator, the target object supply unit mounts a plurality of the target objects and pushes up the topmost one of the target objects to a first reference position, and the target object. Holding part for sucking and holding the uppermost sheet of the above, and a first operation for lowering the holding part to the first reference position, returning to the traveling direction and directing the lower surface of the object in the traveling direction. While rotating so that the first
A driving unit that drives the holding unit to perform a second operation of raising the holding unit from the reference position to the second reference position, and when the driving unit is performing the second operation, A laminator, comprising: a separating unit that separates the uppermost sheet and the next sheet of the object. 2. The laminator according to claim 1, wherein the drive unit moves the holding unit in a traveling direction to a third reference position lower than the second reference position before the laminating unit. A laminator characterized by performing a third operation of lowering and stacking the leading edge of the next sheet on the upper side of the trailing edge of the sheet immediately before the target already supplied to the laminating unit. 3. The laminator according to claim 1, further comprising a trailing edge detection unit that detects a trailing edge of the immediately preceding sheet of the object already supplied to the laminating unit, the drive unit. Is characterized in that after the trailing edge detection unit detects the trailing edge of the immediately preceding sheet, the trailing edge detection unit starts traveling such that the leading edge of the next sheet overlaps the trailing edge of the immediately preceding sheet by a predetermined amount. Laminator to do. 4. An object supply unit that sequentially supplies sheet-shaped objects to be laminated, a film supply unit that supplies a continuous laminate film, and a laminating unit that press-bonds the laminate film to one side of the object. In the laminator, the film supply unit is arranged with a predetermined distance shorter than the core diameter of the laminate film, and two placing rollers that are in contact with the outer periphery of the laminate film; A laminator provided between the rollers, and a film detection unit for detecting that the outer periphery of the laminate film is within a predetermined range. 5. An object supply unit that sequentially supplies sheet-shaped objects to be laminated, a film supply unit that supplies a continuous laminate film, and a laminating unit that press-bonds the laminate film to one side of the object. In the laminator provided with ,, further comprising a curl correction unit that is provided in the subsequent stage of the laminating unit and corrects the curl of the object on which the laminate film is laminated, the curl correction unit that laminates the object. A correction roller that bends to the side where the films are not laminated, an angle adjustment roller that changes the wrapping angle around the correction roller, and a cooling unit that cools the object and the laminated film that have been corrected by the correction roller. A laminator characterized by including. 6. The laminator according to claim 5, wherein the cooling unit is movable along with the movement of the angle adjusting roller. 7. An object supply unit that sequentially supplies sheet-shaped objects to be laminated, a film supply unit that supplies a continuous laminate film, and a laminating unit that press-bonds the laminate film to one side of the object. In the laminator provided with ,, further comprising a cutting unit that is provided in the latter stage of the laminating unit and cuts the laminate film for each of the objects, and the cutting unit is the laminate corresponding to the overlapping portion of the objects. A rotary cutter that forms a trigger for cutting at the edge of the film, an overlay detection unit that detects the overlay portion of the object, and a film traveling when the overlay detection unit detects the overlay portion. A laminator, comprising: a moving cutter that moves in a direction substantially perpendicular to the direction.