JPH05228997A - Laminating device - Google Patents

Abstract

PURPOSE:To prevent an adhesive from sticking to a pressure-heat means occurring due to a film placed upside down erroneously by peeling off the fib having a heat fusible adhesive on its one face from upper and lower rolls and providing a film detecting means in a film conveying route of a device which pinches an object of lamination so as to stick with heat. CONSTITUTION:A laminate film 6a is peeled off from a laminate film roll 5a and wound on a pressure-heat roller 10a through a tension roller 7a. A laminate roll 5b and a tension roller 7b constitute a roll unit X and a laminate film 6b is wound on a heating roller 10b from the unit X. An object of lamination 20 is inserted between the rollers 10a and 10b. At this time, if the roll 5b is mounted in erroneous direction on the unit X, an adhesive face will be reversed. Accordingly, between the roll 5b and the tension roller 7b, a detecting means 80 for detecting the film 6b only when the film 6b is placed in the proper direction with respect to the top and back faces is provided so as to prevent erroneous adhesion of the roll 5b.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to laminating an object to be laminated by sandwiching the object to be laminated between heat-reactive upper and lower laminating films and pressurizing and heating the object to be laminated with the laminating film. The present invention relates to a laminating device.

[0002]

2. Description of the Related Art Conventionally, there is known a laminating apparatus which improves the appearance and storability of a laminated object by wrapping the front and back surfaces of a sheet-shaped laminated object with a laminate film and sealing the laminate.

FIG. 9 shows an example of a conventional laminating apparatus.

In the figure, an upper laminate film roll 101a formed by winding a heat-reactive upper laminate film 102a and a lower laminate film roll 101b formed by winding a lower laminate film 102b are respectively provided in the apparatus main body 100. It is arranged. Laminated film roll Laminated film roll 10
Laminated film 10 separated from 1a and 101b
2a and 102b are wound around pressure and heating rollers 103a and 103b, which are in pressure contact with each other, and are superposed on each other, and tension is applied by pull rollers 105a and 105b. The pressure / heating roller 1
Heaters 106a and 106b for heating the rollers are housed inside 03a and 103b, respectively.

A laminating object 110 is set from a paper feeding table 109 provided on the upstream side of the pressure / heating roller pair 103, and the upper and lower laminating films 102a and 102a are formed.
It is inserted into the nip portion of the heaters 106a and 106b, which is the confluent portion of b. The laminating object 110 is pressed and heated by the pressure / heating roller pair 103 so as to be wrapped by the upper and lower laminating films 102a and 102b, and is sandwiched, and is conveyed to the outside of the machine by the pull roller pair 105. The rear ends of the laminate films 102a and 102b and the object to be laminated 110 are cut by a cutter unit 111 provided on the downstream side of the pull roller pair 105.

At the upper part of the apparatus main body 100, an operation section 113 is provided.
The operating section 113 is provided with switches 115 and 11 for manually setting the conveying speed of the laminating films 102a and 102b and the pull roller pair 105 and the outer peripheral temperature of the pressure / heating roller pair 103, respectively.
6 are provided.

Since the heat-melting adhesive is attached to one side of the laminate film used in the above-mentioned laminating apparatus of this kind, the directionality of the front and back of this laminate film is important.

[0008]

However, since the above-mentioned conventional laminating apparatus does not have means for detecting the front and back of the laminate film, it is not possible to determine whether or not the laminating rolls are properly mounted on the front and back. , Depended on the judgment of the operator. Therefore, when the operator sets the laminating roll in the laminating apparatus, there is a high possibility that the presence or absence of the hot-melt adhesive in the laminating film, that is, the wrong side of the film is mistaken. If the laminating rolls are set in the wrong direction on the front and back sides, not only the laminating rolls cannot be properly laminated, but the adhesive melted by the heating means adheres to the pressure / heating roller and the conveyance roller, and There was a problem that caused a breakdown.

Therefore, according to the present invention, a detecting means for detecting the laminated film is provided in the conveying path through which the laminated film passes only when the laminating roll is mounted in an appropriate state. ,
It is an object of the present invention to provide a laminating apparatus in which the properness of the front and back surfaces of a laminate film is judged to prevent erroneous mounting of a laminating roll and adverse effects thereof.

[0010]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and the sheet is peeled from the upper and lower laminating rolls (5a, 5b) having a heat-melting adhesive applied to one surface thereof, Upper and lower laminating films (6a, 6b) for sandwiching and wrapping the laminated object (20) from above and below, and the upper and lower laminating films (6a, 6) for sandwiching the laminating object (20).
The object (20) to be laminated is pressurized and heated to (b).
Pressure / heating means (10a, 10b) for sealing the
Conveying means (17a, 17b) for conveying the laminate film (6a, 6b) and its driving means (42),
In the laminating apparatus having the above, the roll mounting position of the laminating roll (5b) and the pressing / heating means (10
b) between at least one tension roller (7b) provided between the laminating roll (5b) and the roll mounting position of the laminating roll (5b) and the tension roller (7b). Detecting means (8) for detecting the laminated film (6b) only when the front and back surfaces of the laminated film (6b) to be peeled off are in proper directions.
0) and are included.

When the detecting means (80) detects that the laminated film (6b) has run out during the laminating process by the laminating apparatus, the pressing / heating means (80) and the driving means (40). It is characterized by stopping.

[0012]

[Function] Based on the above configuration, the object to be laminated (20)
Is sandwiched between the upper and lower laminate films (6a, 6b) separated from the laminating rolls (5a, 5b), pressurized and heated by the pressure / heating means (10), hermetically sealed, and further transported. It is conveyed to the outside of the device by means (15). A tension roller (7b) is arranged between the mounting position of the laminating roll (5b) and the mounting position of the pressing / heating means 10. Laminating roll (5
The presence / absence of the laminate film (6b) is detected in the conveyance path between the b) and the tension roller (7b), in which the laminate film (6b) separated from the lamination roll (5b) is conveyed in the proper direction. A film detecting means (80) is provided for this purpose.

When the laminating roll (5b) is properly mounted in the laminating apparatus, the laminating film (6b) is detected by the film detecting means (80), so that the laminating roll (5b) is mounted. Is proper, that is, the directionality of the front and back of the laminate film (6b) is correct. When the laminated film (6b) is not detected by the film detection means (80), it is determined that the orientation of the laminated film (6b) is wrong. As a result, a mistake in mounting the laminate roll (5b), that is, a mistake in the directionality of the front and back sides of the laminate film (6b) can be prevented, and the pressing / heating means (1
It is possible to prevent the situation where the adhesive which is heated and melted by (0) adheres to the pressurizing / heating means (10) and the conveying means (17a, 17b) and the failure of the device due to this.

The reference numerals in parentheses are shown for reference to the drawings and do not limit the structure of the present invention.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

1 and 2, the apparatus main body 1 is shown in FIG.
As shown in FIG. ₃ , a lower body R ₃ and an upper laminating section R rotatably attached to the lower body R ₃ by a spindle 2.
₁ and the paper feed section R pivotally supported by the lower body R ₃ by the support shaft 3.
_{It consists of two} . The laminating section R ₁ is provided with a laminating film roll 5a formed by winding a laminating film 6a in a roll shape, and the laminating film 6 separated from the laminating film roll 5a.
A is wound around a tension roller 7a, a preheat roller 9a, and a pressure / heating roller 10a. Further, the lower body R ₃ is provided with a laminating roll 5b in which a laminating film 6b is wound in a roll shape. The laminating film 6b separated from the laminating film roll 5a includes tension rollers 7b, 7c and preheating rollers. 9b and the pressure / heating roller 10b which is in pressure contact with the pressure / heating roller 10a.

In the tension rollers 7a and 7c, the laminate films 6a and 6b are preheat rollers 9a and 9c.
b while contacting b for a certain length,
This is a roller for holding the film, which prevents the slack of the laminated films 6a and 6b between the a and 9b and the pressure / heating rollers 10a and 10b and the adhesion between the laminated films 6a and 6b. The laminating roll 5b, the tension rollers 7b, 7c, etc. constitute a laminating film roll unit X in which the laminating roll 5b portion is detachably attached to the apparatus main body 1.

Preheaters 12a and 12b for heating the preheat rollers 9a and 9b are provided at the central portions of the preheat rollers 9a and 9b.
However, laminating heaters 13a and 13b for heating the pressure / heating rollers 10a and 10b are housed in the central portions thereof, respectively. The preheat roller 9
The surface temperatures of a and 9b are detected by the preheat roller temperature sensor 55 shown in FIG. 6, and the surface temperature of the pressure / heating roller pair 10 is detected by the pressure / heating roller temperature sensor 56.

On the downstream side of the pressure / heating roller pair 10, there is arranged a pull roller pair 15 consisting of an upper roller 15a and a lower side 15b which are in pressure contact with each other. Laminating film 6a, 6
b and the laminating object described later are pulled in the direction of arrow 16. A cutter unit 17 and a discharge roller 19 are sequentially arranged on the downstream side of the pull roller pair 15.
The cutter unit 17 includes a cutter 17a and a die 17b.
And is for cutting the laminate films 6a and 6b and the rear end of the object to be laminated. On the upstream side of the pressure / heating roller pair 10, the laminating object 2
A sheet feed table 21 on which 0 is set and an upper guide plate 23 that forms a sheet feed path 22 together with the sheet feed table 21 are arranged. At the insertion port 22a of the paper feed path 22, a pickup roller 25 that can be brought into and out of contact with the paper feed table 21 and a shutter member 26 that regulates the tip of the laminating target 20 to be inserted are provided. In addition, the pickup roller 25
A paper feed sensor 27 for detecting the paper feed of the inserted object to be laminated 20 is disposed between the shutter member 26 and the shutter member 26.

Next, the load applied in the pull-out direction (direction of arrow 16) of the laminate films 6a and 6b will be described with reference to FIG.

In FIG. 3A, the laminated film 6
A is wound around a core metal 30a and constitutes a laminated film roll 5a. The roll shaft 31a, on which the cored bar 30a is rotatably mounted, is supported via a tension adjusting nut 33 screwed to a side plate 32 of the laminating apparatus. A tension spring 35 is interposed between the core metal 30a and the tension adjusting nut 33, and the load in the sheet pull-out direction of the laminate film roll 5a can be adjusted by closing the tension adjusting nut 33. ing.

Here, the laminated film roll 5a
Is made of a laminated film 6a having a first thickness. The laminating roll 5b shown in FIG. 3 (b) is composed of a laminating film 6b having a second thickness, and has a core metal 30b.
It is wound around. The core metal 30a is formed in a straight shape, but a flange portion 30c is formed at one end of the core metal 30b. A core bar identifying switch 36 is formed in the vicinity of the core bar of the side plate 32. When the core bar identifying switch 36 is OFF, the first core bar 3 is provided.
0a is identified, and when it is ON, the second cored bar 30b is identified.

Next, the mounting of the laminating film roll unit X in the laminating apparatus will be described with reference to FIG.

The above-mentioned laminating roll 5b has a frame 37.
It is installed inside. The laminate film 6b is peeled off from the peeling section 5c of the laminate roll 5b, and is guided above the laminate film roll unit X via the tension rollers 7a and 7c. The films 6a and 6b of the laminating rolls 5a and 5b have a hot-melt adhesive applied to one surface in advance. Therefore, if the laminating roller 5b is not attached to the laminating roll unit X in an appropriate direction, the adhesive-adhesive surfaces of the laminating film 6b become the front and back, and the laminating roller 1b is adhered to the pressure / heating roller pair 10 and the pull roller pair 15 of the laminating apparatus 1. This will cause a machine failure.

Here, an embodiment of the present invention, which is considered to prevent such a situation, will be described with reference to FIGS. 4 (a) and 4 (b).

As shown in FIG. 4 (a), when the laminating roll 5b is inserted into the laminating roll unit X in the proper direction and mounted on the laminating apparatus 1, it is provided between the laminating roll 5b and the tension roller 7b according to the present invention. The laminated film 6b is detected by the detected film detecting means 80.
Is detected. That is, the laminated film 6b
The film detecting means 80 detects the presence of the film only when the laminating film 5b is stretched from the laminating roll 5b to the pressure / heating roller pair 10 via the tension rollers 7b and 7c without making a mistake in the front and back sides of the laminating process. It can be performed.

The dashed-dotted line in FIG. 4 (a) shows the position where the laminating film 6b is stretched when the remaining amount of the laminating roll 5b becomes small. It is possible to always confirm the presence of the laminate film 6b regardless of the remaining amount of 5b.

However, as shown in FIG. 4 (b), when the front and back sides of the laminated film 6b are mounted in the wrong direction, the film detection means 80 causes the laminated film 6b to detect the laminated film 6b regardless of the remaining amount of the laminated film 6b. The existence cannot be confirmed, and the laminating operation cannot be performed.

As described above, by providing the film detecting means 80 on the correct laminating path of the laminating film 6b on the downstream side of the laminating roll 5b and on the upstream side of the tension rollers 7b and 7c, the laminating film 6 is provided.
It is possible to prevent the failure of the machine due to the wrong insertion of the front and back sides of b.

Further, during the laminating operation, even if the operator does not notice the remaining amount of the laminating roll 5b and the laminating film 6b is finished, the film detecting means 80 recognizes the ending end of the laminating film 6b. By stopping the operation of the apparatus at that time, it is possible to inform the operator that there is no remaining amount of the laminated film 6b, and prevent the apparatus from being damaged due to the loss of the laminated film on at least one side. You can

As shown in FIG. 2, the laminated film roll unit X preliminarily mounted with the laminated film 6b as described above has an upper laminating section R _{1 of the} laminating apparatus.
And the laminated portion R ₂ is opened and the laminated portion R ₂ is inserted into the apparatus from above. At this time, the laminate film roll unit X is rail 41 provided inside the lower body R ₃
It is designed to be inserted along the inside and can be easily attached.

Next, the drive system of the laminating apparatus is shown in FIG.
Will be explained.

In the figure, the main motor 42 is fixed to the side plate 32 via a mounting member (not shown),
A motor gear 43 and a clock disk 45 are fixed to the output shaft. A pull roller gear 46 is fixed to the shaft end of the upper roller 15a of the pull roller pair 15 and meshes with the motor gear 43. The clock disk 45 has a plurality of slits (not shown), and a clock sensor 47, which is a transmissive optical sensor for detecting the slits, is provided near the clock disk 45. .

Next, the object to be laminated 2 according to the present invention
The operation of laminating 0 will be described.

The object to be laminated 20 is placed on the paper feed table 21 (see FIG. 1), inserted into the insertion port 22a, and the front end is abutted against the shutter member 26. When the object to be laminated 20 is detected by the paper feed sensor 27, the shutter solenoid 49 (see FIG. 6) is turned on and the shutter member 26 is retracted from the paper feed table 21. At the same time, the pickup solenoid 50 is turned on, and the pickup roller 2
5 is lowered and the object to be laminated 20 is pressurized with a constant pressure.

Then, the pickup motor 51 is turned on and the pickup roller 25 starts rotating. The object to be laminated 20 is conveyed by the rotation of the pickup roller 25, and when a preset time elapses, the main motor 4
2 is turned on and the pull roller pair 15 starts rotating. The laminate films 6a and 6b are pulled by the pull roller pair 15, and the pressure / heating roller pair 10 and the preheat rollers 9a and 9b are driven to rotate. The non-bonded laminated films 6a and 6b are heated to a first temperature by preheat rollers 9a and 9b which are preheated, and subsequently heated to a second temperature which is always controlled to a constant temperature by a pull roller pair 15. To be done.

The object to be laminated 20 is sent to the nip portion of the pressure / heating roller pair 10 by the pickup roller 25 and heated, and the upper and lower laminating films 6a,
In the state of being sandwiched between 6b, it is pressed and heated by the pressing / heating roller pair 10 to be laminated. The pickup roller 25 is rotated under pressure for a preset time, and then the pickup solenoid 50 operates to activate the pickup roller 2.
1 Retreat from above, and further OF of pickup motor 51
The rotation is stopped by F.

When the paper feed sensor 27 detects the rear end of the object to be laminated 20, the clock sensor 47 starts counting the number of slits of the clock disk 45. After the distance from the paper feed sensor 27 to the cutter unit 17 is measured, the main motor 42 is turned off and the transfer of the laminating object 20 after the laminating process is stopped. At the same time, the cutter motor 52 is turned on, and the trailing ends of the laminated films 6a and 6b, which are continuous and seal the object to be laminated 20 by the cutter 17a, are cut, and the completed laminated sheet is discharged from the machine by the discharge roller 19. The sheet is discharged onto a discharge tray (not shown).

By repeating the above series of laminating operations, the objects to be laminated 20 are successively laminated.

Next, the control and operation of the laminating apparatus will be described with reference to the block diagram of FIG.

In the figure, the control operation is ROM, RAM.
It is mainly composed of a well-known one-chip microcomputer (hereinafter referred to as MCOM) 60 having built-in
At the input ports P _{0 to} P ₄ of the MCOM 60, a paper feed sensor 27 for detecting the presence or absence of the pickup roller 25 on the paper feed tray 21 and the preheat roller 9 are respectively provided.
a preheat roller temperature sensor 55 composed of a thermistor for measuring the surface temperature of a and 9b, a pressure / heating roller temperature sensor 56 for measuring the surface temperature of the pull roller pair 15,
The core metal identification switch 36 for identifying the thickness of the laminated films 6a, 6b by identifying the core metals 30a, 30b of the laminated films 6a, 6b, the rotation amount of the main motor 42, and the movement amount of the peripheral surface of the pull roller pair 15 are counted. Each signal of the clock sensor 47 and the like is input.

Further, at the output ports F _{0 to} F ₇ , the ON / OFF operation of the shutter member 26 and the pickup roller 2 are performed.
ON / O of a pickup solenoid 50 that presses 5 from the retracted position onto the object to be laminated 20 with a constant pressure.
FF operation, ON / OFF operation of the pickup motor 51 for rotating the pickup roller 25, laminating heater 13a for heating the laminating films 6a, 6b,
ON / OFF operation of 13b, preheaters 12a, 12b for keeping the surface temperature of the pressure / heating roller pair 10 constant
ON / OFF operation, ON / OFF operation of the cutter motor 52 that cuts the laminated sheet after the laminating process from the continuous laminating films 6a and 6b, and informs the operator that the laminating target 20 (original) is received and starts the laminating operation. Each output signal such as the original detection display 53 for notifying that is output.

The reading of the input signal, the ON / OFF operation of the load, and the control of each set value are executed according to a program stored in the ROM in the MCOM 60.

Next, the control of the roller surface temperature of the preheat rollers 9a and 9b and the pull roller pair 15 will be described with reference to the flowchart of FIG.

In the figure, the main switch SW is turned on.
Then, the surface temperature of the pressure / heating roller pair (laminating roller) 10 is detected by the pressure / heating roller temperature sensor 56, and this temperature is compared with a preset temperature (S202). When the detected temperature is lower than the set temperature, the laminate heaters 13a and 13b are turned on.
N (S203), and when the temperature reaches a predetermined temperature, the heaters 13a and 13b are turned off.

Next, the surface temperature of the preheat rollers 9a and 9b is detected by the preheat roller temperature sensor 55,
The temperature is compared with a preset temperature (S204). This set temperature is set according to the film thickness based on the information from the core bar identification switch 36. When the detected temperature has not reached the set temperature, the preheaters 12a and 12b are turned on (S205), and when the surface temperature reaches the predetermined temperature, the preheaters 12a and 12b are turned off. This completes the temperature adjustment of the preheat rollers 9a and 9b and the pull roller pair 15.

Next, it is determined whether or not the object (original) 20 to be laminated is present in the paper feed path 22 of the paper feed table 21.
Check with the information in 7. When there is no object to be laminated 20, the temperature is adjusted again. When there is the laminating object 20, only the temperature control of the pull roller pair (laminating roller) 15 is performed (S207, S20).
8).

Based on the information from the paper feed sensor 27, the rear end of the object to be laminated 20 is caught to judge whether or not the lamination is completed (S209). If the object to be laminated 20 exists, the temperature of the pressure / heating roller pair (laminating roller) 10 is controlled (S207, 208), and if it does not exist, the pressure / heating roller pair 10 and the preheat rollers 9a, 9b are again used. Temperature adjustment is performed (S202, S20
4).

FIG. 8 shows a laminating roll section according to the second embodiment of the present invention. The laminating roll 5b to be used has a heat-melting adhesive stuck on one side,
Since it is not transparent until it is laminated,
When there is a concern that the laminate roll 5b may be damaged by the detection means of the type in which the detection member is brought into direct contact with the laminate roll 5b shown in the above-mentioned embodiment, the detection sensor in this embodiment is used. It is also possible to use.

In FIG. 8, a transmission type detection sensor 81a is provided between the laminating roll 5b and the tension roller 7b.
81b is provided. Only when the laminated film 6b is detected by the sensors 81a and 81b, it is detected that the front and back of the laminated film 6b are correctly set, and the surface of the laminated roll 5b is protected.

[0051]

As described above, according to the present invention,
Provided on the downstream side of the laminating roll and on the upstream side of the tension roller is a film detecting means for detecting the presence / absence of the laminated film on a transport path that can be stretched only by mounting the front and back sides of the laminated film in proper directions. Therefore, it is possible to prevent problems in the laminating process and mounting failures caused by mounting the front and back of the laminated film by mistake, and even when the remaining amount of the laminated film runs out during the laminating process operation, automatic It is possible to stop the device mechanically, which can prevent the device from failing.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a laminating apparatus to which an embodiment of the present invention is applied.

FIG. 2 is a side view of a vertical section in which the upper laminating unit and the paper feeding unit are also open when the laminating film is mounted.

FIG. 3 is a sectional front view showing a main part of the laminated film roll portion.

FIG. 4 is a vertical cross-sectional side view of a detection unit section and a lamination roll section for detecting the presence / absence of a laminate film on a conveyance path according to the main part of the present invention.

FIG. 5 is a development view showing a drive system of the laminating apparatus.

FIG. 6 is a block diagram which similarly controls the laminating apparatus of the present invention.

FIG. 7 is a flowchart for explaining the temperature control of the pre-heater and the laminating heater.

FIG. 8 is a vertical cross-sectional side view showing a detection means unit and a laminating roll unit according to a second embodiment of the present invention.

FIG. 9 is a vertical sectional side view showing an example of a conventional laminating apparatus.

[Explanation of symbols]

1 Device main body R ₁ Laminating part R ₂ Laminating part R ₃ Lower main part X Laminating film roll unit 5 a, 5 b Laminating film roll 6 a, 6 b Laminating film 9 a, 9 b Pre-heat roller 10 Pressure / heating roller pair (laminating roller) 15 Pull roller pair 17 cutter unit 20 object to be laminated (original) 39 holding member composed of leaf springs 80, 81a, 81b laminate film detecting means

Claims (2)

[Claims] 1. An upper and lower laminating film, which is peeled from the upper and lower laminating rolls having a heat-melting adhesive applied to one side thereof, and sandwiches and encloses a sheet-shaped object to be laminated, and the laminate. A pressurizing / heating unit that pressurizes and heats the upper and lower laminate films that sandwich the target object to seal the laminate target object, and a transfer unit that transfers the laminate film and a driving unit thereof. In the laminating apparatus having, at least one tension roller arranged between the roll mounting position of the laminating roll and the pressure / heating means, and between the roll mounting position of the laminating roll and the tension roller. The front and back of the laminated film peeled from the laminating roll are only in the proper direction. Laminating apparatus, characterized in that it comprises a detection means for detecting the Irumu, the. 2. The pressurizing / heating means and the driving means are stopped when the detecting means detects that the laminated film has run out during the laminating process by the laminating apparatus. Laminating equipment.