JPH06126832A - Laminating apparatus - Google Patents

Abstract

PURPOSE:To carry out stable lamination treating operation by eliminating display for runout in a residual quantity and its apparatus when the residual quantity of a laminating film is comes to nothing by a method wherein a sensor for detecting the runout in the residual quantity of the laminating film, when a member to be detected passes by, is provided to conveyance passages of upper and lower laminating films. CONSTITUTION:A pressurizing and heating means 10 wherein a lamination objective material 20 is pinched between laminating films 6a, 6b to carry out lamination treatment, is provided. Herein, members to be detected (extinctive detection tapes) stuck respectively to surfaces reversed to pasting surfaces near rear ends of those films, which have optical reflectance different from those of the laminating films 6a, 6b, are provided. Then, a pair of film residual quantity detecting sensors 90a, 90b which are respectively arranged in conveyance passages of the upper and lower laminating films 6a and detect nothing of a residual quantity of the laminating films 6a, 6b by detecting passing of the member to be detected, are provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention is to sandwich the front and back of a sheet-shaped laminated object with a laminate film,
Further, the present invention relates to a laminating apparatus for performing a so-called laminating process for sealing an object to be laminated by pressurizing and heating them.

[0002]

2. Description of the Related Art Conventionally, a sheet-like laminated object has a front surface side and a rear surface side, which are closely attached to each other by a heat-reactive laminating film having a size slightly larger than that of the laminating object, and by pressing and heating the laminated film. A so-called laminating process is known in which upper and lower laminating films protruding in a frame shape are fused around the object to be laminated. A laminating device performs this processing, and is often used to enhance the cosmetic properties and storability of a laminated object sandwiched by transparent films.

FIG. 12 schematically shows a conventional laminating apparatus.

In the figure, the apparatus main body 100 has a lower frame 100b and an upper frame 100a which can be opened and closed with respect to the lower frame 100b. In these upper frame 100a and lower frame 100b, 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, respectively. It is arranged. The laminated films 102a and 102b separated from the laminated film rolls 101a and 101b are wound around the pressure / heating rollers 103a and 103b, which are in pressure contact with each other, to be in a state of being overlapped with each other, and thus the pull roller 1
Tension is given by 05a and 105b.
Inside the pressure / heating rollers 103a and 103b,
A heater 106 for heating each of the rollers.
a and 106b are stored respectively.

A transmission type paper feed sensor 120A is provided slightly upstream of the pressure / heating roller pair (hereinafter, "pair" is appropriately omitted and used. The same applies to a pull roller pair and a discharge roller pair described later) 103. This paper feed sensor 12 is provided.
When 0A detects the laminating object 110, the main motor (not shown) rotates to start the laminating process.

Further, a paper feed table 109 is provided on the upstream side of the pressure / heating roller pair 103, and the objects to be laminated set thereon are the upper and lower laminating films 102a and 1a.
02b heating / pressurizing rollers 103a, 10
It is inserted into the nip portion of 3b. Laminate object 110
Is pressed and heated by the pressure / heating roller pair 103 so as to be sandwiched between the upper and lower laminating films 102a and 102b, and is sandwiched, and is conveyed by the pull roller pair 105.

The rear ends of the laminating films 102a and 102b and the laminating object 110 are the pull roller pair 10
Rotary cutter unit 1 provided on the downstream side of 5
Cut by 11. The cutter unit 111 includes a cutter upper blade 111a that is fixedly arranged and a cutter lower blade (rotating blade) 111b that is rotatably supported. As shown in FIG. 13, the cutter lower blade 111b has a rotating shaft 111c.
And the blade portion 111d, the blade portion 111d,
It is fixed as if twisted from the back side to the front side in the figure at a predetermined phase angle, and its entire width is equal to that of the laminate film 1.
It is set to be longer than the width W of 02a and 102b (the length in the left-right direction with respect to the traveling direction K1). This cutter lower blade 1
As shown in FIG. 14, 11b has a rotating shaft 1 at its tip.
As 11c rotates in the direction of arrow R1, it rotates in the same direction at a predetermined peripheral speed (dashed line), and sandwiches the laminate films 102a and 102b between the cutter upper blade 111a and cuts.

[0008]

However, in the above-mentioned conventional laminating apparatus, the operator must visually check the remaining amount of the laminating films 102a and 102b, and notice that the laminating film disappears. If it is not, there is a problem that a lamination process failure occurs. Further, even if the remaining amount display means is provided on either the upper side or the lower side laminated film, if the film different from the side on which the remaining amount display means is provided disappears first, the remaining film However, there is a drawback in that the adhesive for adhering to the device adheres to the heating means and causes a failure of the device.

Therefore, it is an object of the present invention to provide a laminating apparatus capable of detecting the vicinity of the ends of the upper and lower laminated films, respectively, and preventing a defective laminating process due to the absence of the remaining amount of the laminated film. It is a thing.

[0010]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances. For example, referring to FIGS. 1 and 8, the surface on one side facing the object to be laminated (20) is shown. A pair of laminating films (6a, 6b) having a heat-melting adhesive attached to them and housed in a roll in the laminating device (1), and this laminating film (6).
Laminating apparatus (1) having a pressing / heating means (10) for laminating the object to be laminated (20) by applying pressure and heat while sandwiching the object to be laminated (a, 6b). In the member to be detected, which has a light reflectance different from that of the laminate film (6a, 6b) and is attached to the surface of the laminate film (6a, 6b) in the vicinity of the rear end opposite to the adhesive surface. (91a,
91b) and the upper and lower laminated films (6a, 6)
A pair of remaining film amount detection sensors (b) for detecting the passage of the detection target members (91a, 91b) and detecting the remaining amount of the laminated film (6a, 6b), which are respectively disposed in the conveyance path of b). 90a, 90b).

The pair of laminated films (6
a, 6b), when the corresponding remaining film amount detection sensor (90a / 90b) detects that the remaining amount of at least one of the laminating films (6a / 6b) has run out, the laminating process is in progress at that time. After the laminate object (20) is laminated and discharged, the operation of the device (1) is stopped by the control means (70).

The pair of laminated films (6
a, 6b), when the corresponding remaining film amount detection sensor (90a / 90b) detects that the remaining amount of at least one of the laminated film (6a / 6b) has run out, the laminated film (6a / 6b) The display means (92) is provided outside the device for recognizing that the remaining amount is a).

[0013]

Based on the above construction, the laminated film (6a, 6b) is formed on the surface near the end of the upper and lower roll-shaped laminated films (6a, 6b) having the heat-melting lake surface and on the side different from the lake surface. ), The detection tapes (91a, 91b) having a light reflectance different from that of (1) are attached respectively, and the upper and lower laminated films (6a, 6b) are attached.
The presence or absence of the detection tape (91a, 91b) is detected by each of the light reflection type film remaining amount detection sensors (90a, 90b) provided on the conveyance path of b), and the respective laminated films (6a, 6b) are detected. It is possible to detect when the remaining amount is exhausted.

Any one of the laminated films (6
a, 6b) when the remaining amount of the film is detected by the film remaining amount detection sensor (90a, 90b),
Film (6a, 6b) on the display (92) of the device (1)
By displaying "no remaining amount", it becomes unnecessary for the operator to visually monitor the remaining amount of the laminated film at all times. In addition, the laminated film (6a / 6b) on the upper side or the lower side of the laminated film (6b / 6b)
If it disappears before 6a), the control means (70) is used to stop the laminating operation of the device (1) after the laminate object (20) being laminated at that time is laminated and discharged. Controlled. As a result, one of the laminated films (6a, 6b) disappears and the other laminated film (6a / 6
The glue of b) adheres to the parts of the apparatus (1), which causes the failure of the apparatus (1) and the occurrence of defective laminating process is prevented.

The reference numerals in the parentheses are for the purpose of comparing the drawings, and do not limit the structure of the present invention.

[0016]

Embodiments of the present invention will be described below with reference to the drawings.

First, an embodiment of the first invention will be described.

1 and 2, the apparatus main body 1 is shown in FIG.
As shown in FIG. 3, the lower main body R3, an upper laminating section R1 pivotally supported by the lower main body R3 by the support shaft 2, and a sheet feeding section R2 pivotally supported by the lower main body R3 by the support shaft 3 are provided. .

The laminating section R1 is provided with a laminating film roll 5a formed by winding a laminating film 6a in a roll shape. The laminating film 6a separated from the laminating film roll 5a is a tension roller 7a and a preheating roller 9a. It is also wound around the pressure / heating roller 10a (pressure / heating means). The lower body R3 is provided with a laminate film roll 5b formed by winding a laminate film 6b in a roll shape. The laminate film 6b separated from the laminate film roll 5b is a tension roller 7
b, 7c, a preheat roller 9b, and a pressure / heating roller 10b (pressure / heating means) which is in pressure contact with the pressure / heating roller 10a.

In the tension rollers 7a and 7c, the laminated films 6a and 6b are preheat rollers 9a and 9c.
b while contacting b for a fixed 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 mutual adhesion of the laminated films 6a and 6b. Further, the laminate roll 5b, the tension rollers 7b, 7c, etc. constitute a laminate film roll unit X in which the laminate roll 5b portion can be detachably attached to the apparatus main body 1.

At the center of the preheat rollers 9a and 9b, preheaters 12a and 12b for heating the preheat rollers 9a and 9b are provided.
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. 8, and the surface temperature of the pressure / heating roller pair 10 is detected by the pressure / heating roller temperature sensor 56.

A pull roller pair 15 consisting of an upper roller 15a and a lower roller 15b, which are in pressure contact with each other, is arranged on the downstream side of the pressure / heating roller pair 10 (see FIG. 1). Laminate films 6a and 6b merged at the roller pair 10 and an object to be laminated 2 described later.
0 is pulled in the direction of arrow 16.

Loop guide plates 60a and 60b are provided on the downstream side of the pull roller pair 15, and further on the downstream side, a rotary cutter unit 17 and a discharge roller 19 are provided.
Are sequentially arranged. The rotary cutter unit 17 includes an upper blade 17a and a lower blade 17b, and cuts the rear ends of the laminate films 6a and 6b and the object to be laminated 20.

On the upstream side of the pressure / heating roller pair 10, a paper feed table 21 on which the object to be laminated 20 is set, and an upper guide plate 23 which forms a paper feed path 22 together with the paper feed table 21.
Is provided. At the insertion port 22a of the paper feed path 22,
Pick-up roller 25 that can be moved toward and away from the paper feed table 21
And a shutter member 26 for restricting the tip of the laminated object 20 to be inserted. Further, a paper feed sensor 27 that detects the paper feed of the inserted object 20 to be laminated is disposed between the pickup roller 25 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 to which the core metal 30a is rotatably mounted is supported via a tension adjusting nut 33 screwed to a side plate 32 of the apparatus body 1. A tension spring 35 is interposed between the core metal 30a and the tension adjusting nut 33, and the load of the laminate film roll 5a in the sheet pull-out direction can be adjusted by closing the tension adjusting nut 33. ing.

Here, the laminated film roll 5a
Consists 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 of (a) is formed in a straight shape, while the core metal 30b has a flange portion 30c at one end thereof. A core bar identifying switch 36 is formed near the core bar 30b of the side plate 32. When the core bar identifying switch 36 is off, the first bar
The mounting of the core metal 30a is identified, and when it is turned on, the mounting of the second core metal 30b is identified.

Next, the mounting of the laminating film roll unit X in the laminating apparatus will be described with reference to FIGS. 4 (a) and 4 (b).

The laminated film roll 5b described above is
It is mounted in the frame 37. Laminating film 6b
Is peeled from the peeling portion 5c of the laminating roll 5b,
It is guided above the laminate film roll unit X via the tension rollers 7b and 7c. A static elimination needle 40 held by a holding member 39 made of a leaf spring is arranged in the vicinity of the downstream side of the peeling portion 5c where the laminate film 6b is peeled off, and the free end of the static elimination needle 40 is provided immediately after peeling. The static electricity generated at the time of peeling is removed by contacting the surface of the laminate film 6b.

FIG. 4A shows the state of the laminated film 6b when the remaining amount of the film is large, and FIG. 4B shows the state of the laminated film 6b when the remaining amount of the film is small. Even if the position 4 of the laminate film 6b changes depending on the remaining amount of the film, the static elimination needle 40 has the elasticity of the holding member 39 so that the back surface 4 of the laminate film 6b is
It is configured to follow so as to always come into contact with.
The peeled laminated film 6b is always discharged by the discharging needle 40, so that the laminated film 6b
It is possible to prevent sticking to other metal parts and malfunction of the device due to static electricity.

The laminate film roll unit X preliminarily mounted with the laminate film 6b as described above has an upper laminating section R1 of the laminating apparatus as shown in FIG.
And the sheet feeding section R2 are opened and inserted into the apparatus from above. At this time, laminate film roll unit X
Is inserted in the direction of arrow K1 along the rail 41 provided inside the lower body R3, and can be easily mounted.

Next, the remaining amount of the laminated films 6a and 6b, which is an essential part of the present invention, will be described. As shown in FIG. 10, the laminate films 6a and 6b are unrolled from the laminate film rolls 5a and 5b and fed out, and the vicinity of the ends of the laminate films 6a and 6b have a light reflectance different from that of the laminate film. Absorbent detection tapes 91a and 91b are attached. The detection tapes 91a and 91b are attached to the surfaces of the laminate films 6a and 6b opposite to the adhesive surfaces.

The laminated film rolls 5a and 5b
As shown in FIG. 1, each is rotatably disposed in the laminating apparatus 1, and the fed laminating films 6a and 6b are attached to a conveyance path inside the apparatus 1. If the remaining amount of the laminating film 6a or the wrinkle 6b is decreasing while the laminating process is performed on the laminating object 20, the laminating film 6a (or 6b) having the remaining remaining amount is first attached. The portion of the detection tape 91a (or 91b) that has been passed through passes through the detection surface of the reflection type photo interrupter 90a (or 90b) and has a light reflectance different from that of the ordinary laminate films 6a and 6b. Absorbent detection tape 91a
The photo interrupter 90a (or 90b) detects that (or 91b) has passed.

When the reflection type photo interrupter 90a (or 90b) detects the absorptive detection tapes 91a and 91b, the laminating apparatus 1 recognizes that the remaining amount of the laminating films 6a and 6b has run out. Laminate object 20 currently being laminated
The lamination process is stopped, and the lamination process is stopped at the time when the laminate process is discharged to the outside of the apparatus. When this work is stopped, it is displayed on the display unit 92 (FIG. 8) that either one of the laminated films 6a and 6b is gone, and the operator recognizes this, and the laminated film 6a (6b) is replaced. Is prompted.

The display section 92 is provided with a pair of display lamps and the like for separately indicating that the remaining amount of the upper laminated film 6a and the lower laminated film 6b has run out.

With the above operation, the light-reflective photo interrupters 90a and 90b are light-absorbing detection tapes 91a and 9b.
Since the laminating process is not immediately stopped when 1b is detected, it is possible to protect the laminating object 20 during the laminating process. In addition, the detection tape 91
Since a and 91b are attached to the surface of the laminating films 6a and 6b on the opposite side to the lake surface, the detection tapes 91a and 91b can be easily peeled off after the laminating processing is completed, and the laminating after the laminating processing is performed. As a sheet
No inconvenience will occur.

Next, the drive system of the laminating apparatus will be described with reference to FIGS. 5, 6 and 7. In FIG. 5, the main motor 42 is connected to the plate 3 via a mounting member (not shown).
The motor gear 43 and the clock disk 45 are fixed to the output shaft, respectively. 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. A large number of slits (not shown) that equally divide the circumferential direction are formed in the clock disk 45, and a clock composed of a transmissive optical sensor that detects the slits is provided in the vicinity of the clock disk 45. A sensor 47 is provided.

Further, in FIG. 6, the cutter motor 62 is also fixed to the side plate 32 via a mounting member (not shown), and is driven by the cutter lower blade (rotary blade) 17b of the cutter unit 17 via the motor gear 63 and the cutter gear 64. Has been transmitted. At this time, the drive of the cutter unit 17 and the pull roller pair 15 can be independently controlled.

Further, in FIG. 7, the discharge motor 67 is also fixed to the side plate 32 via a mounting member (not shown), and the drive is transmitted to the lower roller 19b of the discharge roller pair 19 via the motor gear 68 and the discharge roller gear 69. ing. At this time, the driving of the discharge roller pair 19 can also be controlled independently of the cutter unit 17 and the pull roller 15.

Next, the object to be laminated 20 according to the present invention
The operation when laminating is performed 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 tip thereof 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. 8) 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 then a second temperature which is always controlled to a constant temperature by a pressure / heating roller pair 10. Is heated to the temperature of.

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 laminated 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 is actuated to rotate the pickup roller 25.
1, the pickup motor 51 is turned off, and the rotation is stopped.

When the paper feed sensor 27 detects the rear end of the first laminating object 20, the clock sensor 47 starts counting the number of slits of the clock disk 45, and the paper feed sensor 27 to the rotary cutter unit 17 are counted. When the cutting position on the rear end side of the laminating object 20 whose distance is measured arrives at the rotary cutter unit 17, the cutter motor 62 is turned on to make the conveying speed of the discharge roller pair 19 faster than that of the pull roller pair 15. Thus, the rotary cutter unit 17 instantaneously cuts the rear end of the laminating target object 20 after the laminating process with tension applied to the laminating films 6a and 6b. At this time, even if the leading ends of the cut laminated films 6a and 6b ride on the rotary shaft 17c of the rotary cutter lower blade 17b, the pull roller pair 15 causes the rotary shaft 17c of the rotary cutter lower blade 17b to rotate.
Since the peripheral speed of is increased, the loop amount can be reduced. That is, the peripheral speed of the cutter lower blade 17b is made faster than the peripheral speed of the outer circumference of the pull roller pair 15, and further the peripheral speed of the discharge roller pair 19 is made higher than the peripheral speed of the cutter lower blade 17b.
It is possible to cut this with a proper tension always applied to.

After that, the completed laminating object 20 is ejected out of the apparatus by the ejection roller 19.

As described above, the object 20 to be laminated is laminated by performing a series of laminating operations.

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 mainly composed of a well-known one-chip microcomputer (hereinafter referred to as MCOM) 70 having a built-in ROM, RAM and the like as a control device. Input port P _{0 in} this MCOM70
Up to P ₅ are laminated objects 20 to be fed by the pickup roller 25 on the sheet feed table 21 described above.
Paper feed sensor 27 for detecting the presence or absence of preheat roller 9
a preheat roller temperature sensor 55 composed of a thermistor for measuring the surface temperature of a, 9b, a pressure / heating roller temperature sensor 56 for measuring the surface temperature of the pressure / heating roller pair 10, a core metal for the laminating films 6a, 6b A clock sensor 47 for measuring the rotation amount of the identification switch 36, the main motor 42, the cutter motor 62, and the discharge motor 67, and the peripheral speed of the pull roller pair 15, the rotary cutter unit 17, and the discharge roller pair 19, the laminated film 6
The respective signals of the remaining amount detection sensors (photo interrupters) 90a, 90b for detecting the remaining amounts of a and 6b are input.

A shutter solenoid 49 for opening / closing the shutter member 26 is turned on / off at the output ports F _{0 to} F _9.
OFF operation, ON / OFF operation of the pickup solenoid 50 for pressing the pickup roller 25 from the retracted position onto the laminating object 20 with a constant pressure, ON / OFF operation of the pickup motor 51 for rotating the pickup roller 25, laminating film 6a, ON / OFF operation of laminate heaters 13a and 13b for heating 6b,
Turning on / off the preheaters 12a and 12b for keeping the surface temperature of the pressure / heating roller pair 10 constant, and turning on / off the cutter motor 62 that cuts the laminated sheet after the laminating process from the continuous laminating films 6a and 6b. Off operation, original detection display 53 for notifying the operator that the object to be laminated 20 (original) is received and entering the laminating operation, on / off operation of the discharge motor 67 for discharging the laminated sheet after laminating processing, laminating film 6a Each output signal of the display unit 92 and the like indicating that any of the above is lost is output via the drivers D _{0 to} D ₉ .

The reading of the input signal, the ON / OFF operation of the load, and the control to each set value are
It is executed according to the program stored in the ROM in the MCOM 70.

Next, control of the roller surface temperatures of the preheat rollers 9a and 9b and the pressure / heating roller pair 10 will be described with reference to the flow chart of FIG.

In the figure, when the main switch is turned on (S201), the surface temperature of the pressure / heating roller pair (laminating roller) 10 is detected by the pressure / heating roller temperature sensor 56.
And the 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 (S203), and when the predetermined temperature is reached, the heater 13 is heated.
a and 13b turn 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 a predetermined temperature, the preheaters 12a and 12b are turned off. This completes the temperature adjustment of the preheat rollers 9a and 9b and the pressure / heating roller pair 10.

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.
The information of No. 7 is checked (S206). When there is no object to be laminated 20, the temperature is adjusted again. If there is an object to be laminated 20, a pressure / heating roller pair 1
Only the temperature control of 0 is performed (S207, S208).

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 10 is controlled (S2
07, S208). If it does not exist, the temperature of the pressure / heating roller pair 10 and the preheat rollers 9a and 9b is adjusted again (S202, S204).

[0056]

As described above, according to the present invention,
A light-absorbing detection tape with a light reflectance different from that of the laminated film is attached near the rear end of the roll-shaped laminated film on the side opposite to the adhesive side of the film, and is attached to each conveyance path of the laminated film. By detecting the above detection tape with the provided film remaining amount detection sensor and stopping the device after laminating processing during laminating work and displaying it on the display part of the device, it is possible to know that the remaining amount of any of the laminating films has run out. Can be recognized by the person.

Thus, the operator does not always have to continuously visually monitor the remaining amount of the laminated film, and by detecting the remaining amount of the upper and lower laminated films independently, whichever laminated film is detected. Even if the problem disappears, the laminating process of the equipment is stopped, and the glue surface of the remaining laminated film is prevented from adhering to the pressurizing / heating means of the equipment and causing the equipment to malfunction. Therefore, it becomes possible to always perform a stable laminating process.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing an outline of a laminating apparatus according to the present invention.

FIG. 2 is an operation explanatory view showing loading of a laminated film.

3 (a) and 3 (b) are operation explanatory views of a core metal identification switch for detecting the thickness of a laminated film.

FIG. 4 is an explanatory view of the operation of a charge eliminating needle for removing static electricity.

FIG. 5 is a plan view showing a drive system of a pull roller.

FIG. 6 is a plan view showing a drive system of the cutter unit.

FIG. 7 is a plan view showing a drive system of a discharge roller.

FIG. 8 is a block diagram of a control device.

FIG. 9 is a flowchart of a laminating process.

FIG. 10 is a vertical cross-sectional side view of a laminate film embodying the present invention.

FIG. 11 is a vertical cross-sectional side view showing a conventional laminating apparatus.

[Explanation of symbols]

6a, 6b Laminated film 10 Pressurizing / heating roller (pressurizing / heating means) 15 Pull roller 17 Cutter unit 19 Discharging roller 20 Laminating object 56 Pressurizing / heating roller temperature sensor 70 Control device 90a, 90b Photo interrupter (residual amount of film) Detection sensor) 91a, 91b Detection member (light-absorbing detection tape) 92 Display section (display means) with no remaining laminate film

Claims (4)

[Claims] 1. A pair of laminating films having a heat-melting adhesive attached to one surface facing a laminating object and being housed in a roll in a laminating device, and the laminating film having the laminating object. A laminating apparatus having a pressurizing / heating means for laminating an object to be laminated by pressing / heating while sandwiching an object, having a light reflectance different from that of the laminating film, A member to be detected provided on a surface opposite to the glue surface near the edge, and a laminate film which is arranged on each of the upper and lower conveyance paths of the laminate film and detects passage of the member to be detected, A laminating apparatus comprising: a pair of remaining film amount detection sensors for detecting the absence of remaining amount. 2. When the corresponding remaining film amount detection sensor detects that the remaining amount of at least one of the pair of laminated films is exhausted, the laminating target object being laminated at that time. 2. The laminating apparatus according to claim 1, further comprising a control means for stopping the operation of the apparatus after laminating and discharging the. 3. When the corresponding film remaining amount detection sensor detects that the remaining amount of at least one of the pair of laminated films has run out, the remaining amount of the laminated film is detected outside the apparatus. The laminating apparatus according to claim 1, further comprising display means for displaying and recognizing on the display. 4. The laminating apparatus according to claim 1, wherein the member to be detected is a belt-shaped detection tape.