JP3412920B2 - Laminator - Google Patents

Description

Description: 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] Heretofore, as this kind of laminator, there has been known a laminator in which a continuous laminated film is laminated on only one surface of a single-wafer object. [0003] Further, as such a laminator cutting device, for example, a laminating device that laminates a band-shaped film on a continuously fed sheet with its edge portions overlapped by a predetermined amount and continuously outputs the laminated film from a laminating section. The transfer unit for intermittently transferring the sheet is adjusted so as to transfer the sheet at a constant tension, the sheet overlap unit is detected, and this is positioned at the cutting position, and one end is opened to insert the cutting member. (Japanese Unexamined Patent Publication No. 4-372393) discloses a configuration in which the sheet is moved along an overlapping portion to cut a laminated sheet. [0004] In the above-mentioned conventional laminator, the laminated film is laminated on only one side of the object. Adheres to a pressure roller or the like, so that the object is laminated while partially overlapping the end. However, when the lengths of the objects are different, there is a problem in that the amount of superimposition varies, which makes it difficult to perform operations such as a laminating step and a cutting step. For this reason, in particular, if there is a two-sheet feed of the target object, the above-described processing steps such as the overlapping will be hindered. Also, since the laminate film is applied only to one side of the object, the laminate film is heated and laminated, and when the temperature returns to room temperature, the laminate film shrinks and curls toward the film side. there were. Further, when the roll of the laminated film is set in the film supply section, if 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,
There was a problem that it was difficult to set. Further, the invention of Japanese Patent Application Laid-Open No. 4-372393 has a problem that the film must be stopped when cutting the film, and the processing speed is reduced. [0008] A first object of the present invention is to provide a laminating object reliably by overlapping the ends exactly by a predetermined amount even if the objects have different lengths without feeding two sheets. 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 a laminated film. A fourth object of the present invention is to provide a laminator having a high lamination film cutting speed. [0009] In order to solve the above-mentioned problems, the invention of claim 1 comprises an object supply section for sequentially supplying sheet-like objects to be laminated, and a continuous laminating film. A film supply unit for supplying, a laminating unit for pressing the laminated film on one side of the object, and a laminating unit provided at a subsequent stage of the laminating unit;
And a cutting section for cutting the laminate film , wherein the object supply section places a plurality of the objects, and the top one of the objects is the first reference position. And a holding unit that sucks and holds the uppermost sheet of the object, and a trailing edge detection that detects the trailing edge of the sheet immediately before the object already supplied to the laminating unit. and parts, since the rear end detector detects the trailing edge of the sheet of the immediately preceding, such that the distal end of the next sheet becomes a predetermined amount overlaps overlapping portions on the upper side of the rear end of the preceding sheet A driving unit that drives the holding unit to start traveling , wherein the cutting unit detects a superimposed portion of the object.
The overlap detection unit and the overlap detection unit
When the overlapping portion is detected, it enters under the object.
Almost in the direction of film running
A moving cutter that moves in a right angle direction . According to the present invention, when supplying an object to be laminated, the lower surface is lifted in the running direction. However, since the space between them is separated by air blowing or the like by the separation unit, double feeding does not occur. Even if the lengths are different, the trailing edge of the sheet immediately before the target object is detected and the running of the next sheet is started, so that the edges can be accurately overlapped by a predetermined amount. It is possible to prevent the adhesive of the laminated film from adhering to a roller or the like in a later step.
In addition, the correction roller causes the film to be curved on one side of the object on which the film is not stuck, and at the same time, is cooled by the cooling unit, so that curling does not occur. Further, since the laminate film can be set only by placing it on the placing roller, it does not take up a working space and is easy to set. Furthermore, while waiting for the overlapping portion of the object upstream of the film running direction, the overlapping portion is detected, and the rotary cutter creates a trigger portion,
Since the moving cutter starts running immediately, the cutting speed of the laminate film can be increased. Embodiments will be described below with reference to the drawings and the like.
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 illustrating the internal structure of the laminator according to the present embodiment. The laminator of this embodiment is shown in FIG.
As shown in FIG. 3, the lamination target supply unit 10, the lamination unit 30, the film supply unit 50, and the curl correction unit 7
0 and a cutting section 90. The laminating object supply section 10 is a section for sequentially supplying the sheet-like objects 1 to be laminated.
The mounting unit 11 mounts a plurality of objects 1, and detects by a sensor (not illustrated) and a chain (not illustrated) such that the uppermost sheet of the objects is at the first reference position A <b> 1. It is configured to be pushed up by using. In addition, this mounting portion 1
1 includes a guide portion 12 that is variable according to the width of the object 1.
(See FIG. 2). The holding section 13 has a plurality of vacuum suction disks 14 for sucking the uppermost sheet of the object 1 (see FIG. 4).
The number of the vacuum suction disks 14 to be used can be selected by closing a cock (not shown) according to the width of the object 1. 6 to 11 are views showing a driving unit of the laminating object supply unit of the laminator according to the present embodiment. FIG. 6 is a configuration 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 chase operation. The drive unit 15 is provided on the machine frame 16, a transport cylinder 17 for moving the machine frame 16 in the direction of transporting the target object, a vertically moving cylinder 18 for vertically moving the transport cylinder 17, and the machine frame 16. , A fixed frame 19 having a guide block 19a, and provided on the fixed frame 19 so as to be swingable,
A swing frame 20 connected to a support tube 14a for supporting the vacuum suction plate 14 and sucking air, and a cam member rotatably provided on the swing frame 20 about a shaft 21a and having a guide roller 21b at the other end. 21 and an urging member 22 such as a spring for urging the cam member 21 counterclockwise. The drive section 15 drives the vertical movement cylinder 18 so as to move down (arrow B1) so as to move to the first reference position A1.
The vacuum suction plate 14 is lowered until [see FIG. 10A] (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 transport cylinder 17 returns to the direction opposite to the traveling direction (see arrow B2 in FIG. 8), and
8 (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 is inclined by a predetermined angle. For this purpose, the vacuum suction disk 14
Ascending from the first reference position A1 to the second reference position A2, the lower surface is inclined while rotating so that the lower surface of the object 11 is directed in the traveling direction (second operation). At this time,
As illustrated in FIG. 10, the separation unit 23 blows air between the top sheet 1-1 and the next sheet 1-2 of the target object 1, and
-1 is separated. Next, as shown in FIG. 11B, the driving unit 15 moves the vacuum suction disk 14 in the traveling direction.
Before the nip rollers 51 and 52 of the laminating unit 50, the laminating unit 50 is lowered to a third reference position A3 lower than the second reference position A2 (third operation). At this time, the leading edge of the uppermost sheet 1-1 of the object 1 is overlapped with the upper end of the rear end 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 to the reference position A3 is that the first sheet 1 of the object 1
This is to ensure that -1 is overlaid on the rear end of the immediately preceding sheet 11-0. Next, the operation of the driving unit at this time will be described. As shown in FIG. 11, the trailing edge detection unit 24 detects the first sheet 1-1 immediately before the object 1 already supplied to the laminating unit 50.
This is for detecting the trailing end of 0. The driving unit 15
After the trailing edge detector 24 detects the trailing edge of the immediately preceding sheet 1-0, the vehicle travels so that the leading edge of the next sheet 1-1 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. In this way, even if the length of the object 1 is different, the length of the overlapping portion is always constant. Next, the film supply unit will be described with reference to FIGS. FIG.
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 a continuous laminated film 2. The film supply unit 30 is arranged at a predetermined distance C2 shorter than the diameter C1 of the core 2a of the laminated film 2 [FIG.
2 (B)], and has two mounting rollers 31 and 32 that are in contact with 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 for guiding both ends of the roll of the laminated film 2, and when the handle 36 is rotated, the spacing is changed by a rack and pinion mechanism (not shown). The side guide rollers 34-1 and 35-1 in FIG. 3) and the laminate films 2 having different widths can be used. Further, the side guide roller 34 is used for the laminated film 2.
Can be turned sideways (see side guide roller 34-2 in FIG. 3). The film detecting section 33 includes a loading roller 31,
32, and is a portion for detecting that the outer periphery of the laminate film 2 is within a predetermined range. The film detection unit 33 determines the distance between the distance D1 (see FIG. 12A) for the maximum winding diameter of the laminated film 2 and the distance D2 (see FIG. 12B) for only the core 2a. It is a sensor that detects the presence of an object. When only the core 2a is used (or when the roll itself of the laminate film 2 is removed), there is no object in that area. Can be. The laminating section 50 includes, as shown in FIG.
This is a part where the laminated film 2 supplied from the film supply unit 30 is pressed against one surface of the object 1 supplied from the object supply unit 10 by the thermocompression rollers 53 and 54. 51 and 52 are nip rollers, and 55 is
The tension roller 56 for applying tension to the laminate film 2 is an idle roller. FIGS. 13 and 14 are views showing a curl correcting section of the laminator according to the present 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 subsequent stage of the laminating unit 50 and having the laminated film 2 laminated thereon
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 stuck, an angle adjustment roller 72 that varies the wrapping angle around the correction roller 71, and an object curled by the correction roller 71. 1 and cooling units 73 and 74 such as fans for cooling the laminated film 2
And so on. In addition, 75 is a pressing roller, 7
6, 77 are nip rollers. The cooling units 73 and 74 include an angle adjusting roller 72
Can be moved by the following moving mechanism with the movement of. The angle adjusting roller 72 is rotatably attached to the vertical movement 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 rotatably mounted around a shaft 80a, and a cooling unit 73 is mounted on 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 a shaft 78b at the upper end of the vertical movement frame 78. A shaft 81a at the other end of the swing frame 81 has a swing frame 8
2 is rotatably mounted. This swing frame 82
Is mounted rotatably about a shaft 82a. Since the moving mechanism is constructed as described above, as shown in FIG.
Correction roller 71 as it moves from
Is changed. At this time, the cooling unit 73
Moves from F1 to F5, and the cooling section 74 moves from G1 to G5.
Go to 5. Therefore, the degree of curl correction of the object 1 and the laminate film 2 can be adjusted, and the air can be blown at an angle with the highest cooling efficiency. FIG. 15 is a diagram showing a cut portion of the laminator according to this embodiment. The cutting unit 90 includes the laminating unit 50
(In the present embodiment, after the curl correcting section 70), and is a section for cutting the laminate film 2 for each object 1. The cutting section 90 includes a cutting section main body 91,
A rotary cutter 9 provided on the cutting portion main body 91 and forming a cutting trigger J at an end of the laminated film 2 corresponding to the overlapping portion H of the object 1-m and the object 1-n.
1, an overlap detection unit 94 that detects the overlap portion H of the target object 1, and the overlap detection unit 94
Is detected, the moving cutter 93 moves in a direction substantially perpendicular to the film running direction.
Reference numerals 95 and 96 are feed rollers. The reason why the overlay detecting sections 94 are provided at both ends of the movable cutter 93 is that the movable cutter 93 reciprocates, thereby eliminating the return time and increasing the cutting processing speed. Superposition detection unit 94
Are provided on the cutting section main body 91 side and the moving cutter 93 side.
1 and a photoelectric sensor having a photodetector 94B.
As shown in FIG. 5 (A), the object 1 and the laminate film 2 are arranged between them. When the cutting section body 91 moves toward the center of the object 1 (upward in FIG. 15 (B1)), the overlay detection section 94 detects the end of the object 1 and stops, and the rotation cutter 92 stops. While waiting for the overlapping portion H to come. As shown in FIG. 15 (B2), the overlapping portion H
15 (B).
As shown in 3), when the moving cutter 94 enters the lower side of the object 1-m and there is no obstruction between the overlapping detection units 94, it is determined that the moving cutter 94 has passed the overlapping unit H, and the moving cutter 94 moves. The cutter 93 moves in the direction of the arrow K to cut the laminate film 2. The moving cutter 93 stops when it moves to the other end, cuts forward from the other end side, and repeats the same operation. In this way, since the front cutting is performed, the apparatus can be reduced in size without requiring a large force, and the cutting processing speed can be increased because there is no need to stop the film running. . As described above in detail, according to the present invention, when supplying the object to be laminated, the lower surface is lifted in the running direction, and the lower portion is separated by the separating portion. Do not cause double feed. 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 rollers or the like in a later process. Further, since the film is curved by the correction roller on one side of the object on which the film is not stuck, and is cooled at the same time, it does not curl even when the temperature returns to normal temperature. Further, the laminating film can be set simply by being placed on the placing roller, so that the setting is easy. Furthermore, since the moving cutter starts running immediately upon detecting the overlapped portion of the object, the cutting speed of the laminate film is increased.

BRIEF DESCRIPTION OF THE 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. 1; FIG. 4 is a left side view of FIG. 1; FIG. 5 is a schematic diagram showing an internal structure of the laminator according to the embodiment. FIG. 6 is a configuration diagram illustrating a driving unit of a laminating object supply unit of the laminator according to the embodiment. FIG. 7 is an explanatory view showing the operation of the cam of the lamination target supply unit of the laminator according to the embodiment. FIG. 8 is an explanatory view showing the operation of the cam of the laminating object supply unit of the laminator according to the embodiment. FIG. 9 is an explanatory view showing the operation of the cam of the laminating object supply unit of the laminator according to the embodiment. FIG. 10 is an explanatory diagram showing a peeling operation of the laminating object supply unit of the laminator according to the embodiment. FIG. 11 is an explanatory diagram illustrating a chase operation of the lamination target supply unit of the laminator according to the embodiment. FIG. 12 is a schematic diagram illustrating a film supply unit of the laminator according to the embodiment. FIG. 13 is a configuration diagram illustrating a curl correcting unit of the laminator according to the embodiment. FIG. 14 is an operation explanatory view showing a curl correcting unit of the laminator according to the embodiment. FIG. 15 is a diagram illustrating a cut portion of the laminator according to the embodiment. [Description of Signs] 10 Laminating object supply unit 30 Laminating film supply unit 50 Laminating unit 70 Curling correcting unit 90 Cutting unit

Continuation of front page (56) References JP-A-6-1467 (JP, A) JP-A-3-192048 (JP, A) JP-A-60-135237 (JP, A) JP-A-4-44231 (JP) , U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B32B 1/00-35/00 B29C 63/00-65/82 B41J 13/00-13/32 B65H 3/00-3 / 68 B26D 3/00

Claims (1)

(57) [Claims 1] An object supply unit for sequentially supplying sheet-like objects to be laminated, a film supply unit for supplying a continuous laminate film, and the laminate film as the object A laminating unit to be crimped on one side of an object, and a laminating unit provided at a subsequent stage of the laminating unit,
A cutting section for cutting the laminate film , wherein the object supply section places a plurality of the objects, so that the top one of the objects is at the first reference position. A mounting unit that pushes up, a holding unit that sucks and holds the uppermost sheet of the target object, and a rear end detection unit that detects the rear end of the sheet immediately before the target object that has already been supplied to the laminating unit. , from the rear end detector detects the trailing edge of the sheet of the immediately preceding travel so that the leading end of the next sheet becomes a predetermined amount overlaps overlapping portions on the upper side of the rear end of the preceding sheet A driving unit that drives the holding unit to start , and wherein the cutting unit detects an overlapping unit of the object.
And the overlay detection unit has detected the overlay unit
To enter the underside of the object and turn it
The moving force that moves in a direction substantially perpendicular to the film running direction
Laminator, characterized in that it comprises a jitter, a.