JPH0485034A - Laminating device - Google Patents

Abstract

PURPOSE:To reduce the temp. reduction of a heater and to excellently perform laminating treatment by controlling the pressurizing and heating rollers so that feeding operation of a feeding means is not performed until a prescribed time elapses from a point of time when the said rollers reach a state capable of lamination. CONSTITUTION:Pressurizing and heating rollers 10a, 10b become a state capable of lamination by heating of the heaters 13a, 13b for lamination. In this state, when a laminating object 20 is detected by a feeding detection means 27, the said rollers 10a, 10b are controlled so that feeding operation due to a feeding means 25 is not performed until a prescribed time S elapses after the heaters 13a, 13b become a state capable of lamination. The prescribed time S elapse and quantity of heat is taken away by the laminating object 20. For example, the temp. reduction of the rollers 10a, 10b due to feeding of the object 20 is reduced by preliminarily imparting quantity of heat to the heaters 13a, 13b and laminating treatment is stably performs.

Description

[Detailed description of the invention] (Industrial field of application) The present invention is a method for laminating an object into a laminated film by sandwiching the object to be laminated between upper and lower heat-reactive laminate films and applying pressure and heating. The present invention relates to a laminating device that performs lamination processing in a sealed manner.

(B) Prior Art Conventionally, a laminating apparatus is known that improves the appearance and shelf life of a sheet-like laminated object by wrapping the front and back sides of the sheet-like laminated object with a laminating film and sealing the laminated object.

FIG. 6 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 disposed in the apparatus main body 100, respectively. ing. Each laminate film roll laminate film roll 101a, 101
Laminate films 102a and 102 peeled off from b
b are pressure/heating rollers 103a that are in pressure contact with each other;
They are wound around 103b and placed one on top of the other, and tension is applied by pull rollers 105a and 105b. The pressure/heating rollers 103a, 10
Heaters 106a and 106b for heating the rollers, respectively, are housed inside the rollers 3b.

An object to be laminated 110 is set from a paper feed table 109 provided upstream of the pressure/heating roller pair 103 and inserted into the nip between heaters 106a and 106b, which is the confluence of the upper and lower laminating films 102a and 102b. be done. The object to be laminated 110 is wrapped by the upper and lower laminating films 102a and 102b and is pressed and heated by a pair of pressure/heating rollers 103 to be sandwiched therebetween, and then conveyed to the outside of the machine by a pair of pull rollers 105. The rear ends of the laminated films 102a, 102b and the laminated object 110 are cut by a cutter unit 111 provided downstream of the pull roller pair 105.

An operating section 113 is provided at the top of the device main body 100, and this operating section 113 is connected to the laminate film 102a.
Switches 115 and 116 are provided for manually setting the conveyance speed of the pull roller pair 102b and the pull roller pair 105, and the outer peripheral temperature of the pressure/heating roller pair 103, respectively.

(c) Problems to be Solved by the Invention However, in the conventional laminating apparatus described above, depending on the density and thickness of the object to be laminated 110 and the thicknesses of the laminate films 102a and 102b, the object to be laminated 110 and the laminate film 102a, 1
Conveying speed of 02b or pressure/heating roller pair 103
There has been a problem in that laminating with good quality cannot be achieved unless the user manually adjusts the heater temperature.

Furthermore, if the lamination process is performed continuously, the object to be laminated 110 and the laminated films 102a and 102b
There was a problem in that the heat was taken away by the heater, causing the heater temperature to drop significantly.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a laminating apparatus that can automatically perform a good laminating process by reducing the decrease in heater water temperature.

(:) Means for Solving the Problems The present invention has been made in view of the above circumstances, and as shown in FIGS. 1, 4, and 5, for example, a sheet-like laminated object Heat-reactive upper and lower laminate films (6a
, 6b) and the laminating film (6a, 6b) sandwiching the laminated object (2o) to seal the laminated object (20) (13a, 13b, 10a). , 10b) and a detection means (
27), and a feeding means (25) for feeding the object to be laminated (20) detected by the heating means (13a).

13b, 10a, 10b) are laminate heaters (13
a, 13b) and this laminate heater (13a, 13b)
) and a heating block (10a, 10b) that supplies heat from the laminate film (6a, 6b) to the heating means (13a).

13b, 10a, 10b) until a predetermined time (S) has elapsed from the time when the laminating state is reached, the feeding means (25) is controlled not to perform the feeding operation.

(f) Function Based on the above configuration, the laminate heaters (13a, 13b
), the pressure/heating rollers (10a, 10b) become ready for lamination.

In this state, if the object to be laminated (20) is detected by the paper feed detection means (27), the lamination heater (1
3a, 13b) is controlled so that the paper feeding operation by the paper feeding means (25) is not performed before a predetermined period of time (S) passes after the state where lamination is possible.
S) By giving the laminating heater (13a, 13b) in advance the amount of heat that is absorbed by the laminating object (20) over time, the pressure and heating rollers (10a, 10b) caused by feeding the laminating object (20) ) A stable lamination process is performed by reducing the temperature drop.

Note that the above reference numerals in parentheses are shown for reference to the drawings, and are not intended to limit the structure of the present invention in the same manner.

(f) Example Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

In FIG. 1, a laminate film roll 5a in which a laminate film 6a is wound into a roll is disposed on the upper side of the apparatus main body 1, and the laminate film 6a peeled from this laminate film roll 5a
is wound around a tension roller 7a, a preheat roller 9a, and a pressure/heating roller (heating block) 10a as a laminating roller, respectively. Further, a laminate roll 5b in which a laminate film 6b is wound into a roll is provided on the lower side of the apparatus body 1, and the laminate film 6b peeled off from the laminate film roll 5a is transferred to tension rollers 7b, 7c. , and is wound around a pressure/heat roller 10b which is in pressure contact with the preheat roller 9b and the pressure/heat roller 10a.

The tension rollers 7a, 7c are laminate films 6a, 6b or preheat rollers 9a.

9b at a certain length, and the preheat roller 9
This is a film holding roller that prevents sagging of the laminate films 6a, 6b between a, 9b and the pressure/heating rollers 10a, 10b, and prevents the laminate films 6a, 6b from adhering to each other due to this. Further, the laminating roll 5b, tension rollers 7b, 7c, etc. constitute a laminating film roll unit X, in which the laminating roll 5b portion is detachable from the apparatus main body 1.

At the center of the preheat rollers 9a and 9b, there are preheaters 12a and 12b that heat the rollers, and pressure and
Laminate heaters 13a, 13b and the like serving as heating means for heating the heating rollers 10a, 10b are housed in the center portions of the heating rollers 10a, 10b, respectively. The heating means includes the laminate heaters 13a, 13b and the heaters 13al, 13.
It consists of pressure/heating rollers (heating blocks) 10a and 10b that supply heat b to the laminate films 6a and 6b. The surface temperature of the preheat rollers 9a and 9b is determined by a preheat roller temperature sensor 55 shown in FIG.
Further, the surface temperature of the pressure/heat roller pair 10 is detected by a pressure/heat roller temperature sensor 56, respectively.

A pull roller pair 15 consisting of an upper roller 15a and a lower roller 15b that are in pressure contact with each other is disposed downstream of the pressure/heat roller pair 10, and the laminate film 6a merged at the pressure/heat roller pair 10. , 6b and an object to be laminated, which will be described later, are pulled in the direction of arrow 16.

On the downstream side of the pull roller pair 15, a cutter unit 17 and a discharge roller 19 are sequentially arranged. The cutter unit 17 is composed of a cutter 17a and a die 17b, and is used to cut the laminated films 6a, 6b and the rear end of the object to be laminated.

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 that forms a paper feed path 22 together with this paper feed table 21 are arranged. . The insertion slot 22a of the paper feed path 22 has a paper feed tray 2.
A pickup roller 25 that can move toward and away from the laminating object 1 and a shutter member 26 that restricts the tip of the laminated object 20 that is inserted are provided. Further, between the pickup roller (paper feeding means) 25 and the shutter member 26, there is a paper feeding sensor 2 that detects the feeding of the inserted laminated object 20.
7 are arranged.

When the heating means (laminate heaters 13a, 13b, pressure/heating roller pair 10) reaches a temperature at which lamination is possible (point A in FIG. 5), when the paper feed sensor 27 detects the object to be laminated 20, The above laminate heater 13
When the pressure/heating roller pair 10 is heated for a predetermined time S and the heat is transferred to the pressure/heating roller pair 10, the pickup roller 25 starts the sheet feeding operation.

Next, the direction in which the laminated films 6a and 6b are drawn (
The load applied in the direction of arrow 16 will be explained using FIG. 2.

In FIG. 2(a), the laminate film 6a is wound around the core bar 30a, and the laminate film roll 5a
It consists of A roll shaft 31a to which the core metal 30a is rotatably mounted is supported via a tension adjustment nut 33 screwed onto a side plate 32 of the laminating apparatus.

A tension spring 35 is interposed between the core bar 30a and the tension adjustment nut 33, and the load on the laminated film roll 5a in the sheet drawing direction can be adjusted by adjusting the tightening condition of the tension adjustment nut 33. ing.

Here, the laminate film roll 5a is made of a laminate film 6a having a first thickness. Figure 2 (b
The laminate roll 5b shown in ) is made of a laminate film 6b having a second thickness and is wound around a core bar 30b. The core metal 30a is formed in a straight shape, or one end of the core metal 30b has a flange portion 30.
c is formed. A core metal identification switch 36 is configured near the core metal of the side plate 32, and when the core metal identification switch 36 is OFF, it is determined whether the first core metal 30a is installed, and when it is ○N, the second core metal identification switch 36 is configured. Attachment of the core bar 30b is identified.

In addition, in the above embodiment, two types of core metal cores 30a, 30
By changing the outer diameter of the flange portion 30c and providing three or more core metal identification switches 36, it is possible to identify three or more types of core metals with different thicknesses, that is, the thickness of the laminate film. It is also possible to do this.

Next, the drive system of the laminating apparatus will be explained with reference to FIG.

In the figure, a main motor 42 is fixed to the side plate 32 via a mounting member (not shown), and a motor gear 43 and a clock disk 45 are respectively fixed to the output shaft. The rotation of the motor gear 43 is controlled by the idle gear 4.
0 and an idle gear 41 rotatably mounted on a support shaft 46. A gear 66 and a pull roller clutch 65 integral with the support shaft 46 are attached to the support shaft 46, and a pull roller gear 67 fixed to the support shaft of the pull roller pair 15 meshes with the gear 66. . The rotation of the main motor 42 is controlled by the ON10FF of the pull roller clutch 65, and the rotation of the pull roller pair 15 is controlled by the ON10FF of the pull roller clutch 65.
is transmitted to.

Further, the rotation of the motor gear 43 is controlled by an idle gear 67 and an idle gear 7 rotatably attached to a support shaft 70.
9 has been transmitted. A pressure roller clutch 71 and a gear 72 integrated with the support shaft 70 are attached to the support shaft 70, and the gear 72 is equipped with a pressure roller clutch 71 and a gear 72 that is fixed to the support shaft of the pressure/heating roller pair 10. Roller gear 73 is in mesh. The rotation of the main motor 42 is controlled by ON10FF of the pressure roller clutch 71 and transmitted to the pressure/heat roller pair 10.

Further, the reference numeral 75 in the figure indicates a paper feed motor 75.

A pickup roller clutch 76 and an idle gear 77 are attached to the output shaft 75a of the paper feed motor 75, and the idle gear 77 meshes with a pickup roller gear 79 that is integrated with the pickup roller 25. The rotation of the paper feed motor 75 is controlled by the pickup roller clutch 7.
It is controlled by ON10FF of No. 6 and transmitted to the pickup roller 25.

The clock disk 45 has a plurality of slits (as shown), and a clock sensor 47 made of a transmission type optical sensor is provided near the clock disk 45 to detect the slits. .

Next, the operation when laminating the object 20 to be laminated according to the present invention will be described.

The object to be laminated 20 is placed on a paper feed tray 21 (see FIG. 1), inserted into the insertion slot 22a, and its leading end abuts 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 above the paper feed table 21. At the same time, the pickup solenoid 50 or ONL and the pickup roller 25 are lowered to press the object to be laminated 20 with a constant pressure.

After that, the pickup motor 51 ONL/pickup roller 25 starts rotating. The object to be laminated 20 is transported by the rotation of the pickup roller 25, and after a preset time has elapsed, the main motor 42 or ONL
/Pull roller pair 15 starts rotating. The laminate films 6a and 6b are pulled by the pull roller pair 15, and are pulled by the pressure/heat roller pair 10 and the preheat roller 9.
Either a or 9b rotates as a result. The unbonded laminate films 6a and 6b are heated to a first temperature by preheated preheat rollers 9a and 9b, and then heated to a second temperature that is always controlled to a constant temperature by a pair of pull rollers 15. be done.

The object to be laminated 20 is sent into the nip portion of the pressure/heat roller pair 10 by a pickup roller 25, and is placed between the pressure/heat roller pair 10 while being sandwiched between the heated upper and lower laminating films 6a and 6b. The material is then pressurized and heated and laminated. pickup roller 2
5 rotates under pressure for a preset time, then the pickup solenoid 50 is actuated to retreat from the paper feed table 21, and the rotation is stopped by turning off the pickup motor 51.

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 in 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 transport of the laminated object 2o after lamination processing is stopped. At the same time, the cutter motor 52 or ONL or the cutter 17a cuts the continuous laminate films 6a and 6b that seal the laminated object 20, and the completed laminate sheet is delivered to the outside of the machine by the discharge roller 19. The image is discharged onto a discharge tray (not shown).

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

Next, the control and operation of the laminating apparatus will be explained using the block diagram shown in FIG.

In the same figure, the control operation is performed using a well-known one-chip microcomputer (hereinafter referred to as MC0M) with built-in ROM, RAM, etc.
) 60, and this MC0M6
The input boats Pa to P4 at 0 are each equipped with a preheat sensor 27 that detects the presence or absence of the pickup roller 25 on the paper feed table 21, and a thermistor that measures the surface temperature of the preheat rollers 9a and 9b. A roller temperature sensor 55, a pressure/heating roller temperature sensor 56 that measures the surface temperature of the pull roller pair 15, and a core metal that identifies the core metals 30a and 30b of the laminate films 6a and 6b to determine the thickness of the laminate films 6a and 6b. Identification switch 36, rotation amount of main motor 42 and pull roller pair 1
Various signals such as a clock sensor 47 that counts the amount of movement of the circumferential surface of 5 are input.

Also, output boat F. -F, the ON10 F F operation of the shutter member 26 and the ON10 F F operation of the pickup solenoid 50 that presses the pickup roller 25 from the retracted position onto the object to be laminated 20 with a constant pressure.
Operation, 0N10FF operation of the pickup motor 51 that rotates the pickup roller 25, and the laminate heaters 13a and 13 that heat the laminate films 6a and 6b.
0N10FF operation of b, O of preheaters 12a and 12b to keep the surface temperature of pressure/heating roller pair 10 constant
N10 F F operation, laminate film 6a that is a continuous laminate sheet after lamination processing.

0N10FF of cutter motor 52 that cuts from 6b
During the operation, various output signals such as a document detection display 53 are output, which informs the operator that the object to be laminated 20 (original) has been received and that the laminating operation is to begin.

Further, the MC0M 60 outputs an output signal to the pull roller clutch 65, pressure roller clutch 71, paper feed motor 75, pickup roller clutch 76, etc. shown in FIG.

Reading the input signal or 0N10FF of the load
Control of operation and each setting value is by MC0M6.
It is executed according to the block diagram stored in ROM in 0.

FIGS. 5(a) and 5(b) show the temperature gradient and heating timing of the pressure/heating roller pair 10. FIG.

Symbol T shown in FIG. 5(a). indicates a temperature state in which the heating means (laminate heaters 13a, 13b, pull roller pair 15) is capable of laminating, and symbol S indicates a temperature state in which the heating means (laminate heaters 13a, 13b, pull roller pair 15) is capable of laminating, and the symbol S indicates a temperature state in which the heating means (laminate heaters 13a, 13b, pull roller pair 15) is in a state where lamination is possible.
, 13b and the predetermined time for heating the pull roller pair 15.

Moreover, the code|symbol T1 is the lamination heater 13a.

13b, the predetermined period of time is the temperature of the heating means when heated.

The symbol T is the temperature state T in which lamination is possible. It represents the temperature difference from to temperature T1 when heated for a predetermined time S by the laminate heaters 13a and 13b.

Point A shown in FIG. 5(b) represents the time when the object to be laminated 20 (see FIG. 1) is detected by the paper feed sensor 27. Further, point B indicates the timing at which feeding of the paper to be laminated 20 is started after a predetermined period of time S has elapsed after the heating means became in a state where lamination is possible (temperature T).

In this way, by feeding the object 20 to be laminated a predetermined time S after the heating means reaches a temperature state where lamination is possible, the temperature of the heating means can be prevented from decreasing due to the heat taken away by the object 20 to be laminated. reduced,
A stable lamination process is performed.

(g) Effects of the Invention As described above, according to the present invention, the heating means consisting of a laminate heater and a heating roller (pressure/heating roller) can be used for a predetermined period of time from the state where the temperature at which lamination is possible is reached by heating the laminate heater. Before the elapse of time, even if the paper feeding detection means detects the object to be laminated, the paper feeding means is controlled so that the paper feeding operation is not performed, and the amount of heat taken away by the object to be laminated is given to the heating means in advance. Also, when feeding the paper to be laminated, the temperature of the heating means is reduced and stable lamination processing can be performed.

[Brief explanation of drawings]

Fig. 1 is a longitudinal cross-sectional side view of a laminating apparatus to which an embodiment of the present invention is applied, Fig. 2 (a) and (b) are cross-sectional front views showing the main parts of the laminated film roll section, and Fig. 3 is a laminating apparatus. FIG. 4 is a block diagram for controlling the laminating apparatus of the present invention; FIG. 5 is a diagram showing the temperature gradient of the heating means and the timing of temperature change; FIG.
The figure is a longitudinal side view showing an example of a conventional laminating apparatus. Film roll, 5C...Peeling part, 6a. 6b... Laminating film 9a, 9b...
Preheat rollers, 10a, 10b...pressure/
Heating roller (heating block), 12a. 12 b--Bre heater, 13a, 13b- Laminate heater, 13a, 10a, 10b, 1
3b...Heating means, 15...Pull roller pair,
17...Cutter unit 20...Object to be laminated (original)

Claims (1)

[Claims] 1. Lamination by applying pressure to heat-reactive upper and lower laminate films that sandwich and wrap a sheet-shaped object to be laminated from above and below, and the laminate films that sandwich the object to be laminated. Pressurization and sealing of objects
In a laminating apparatus having a heating means and a feeding means for feeding a laminated object detected by a detection means, the heating means includes a lamination heater and a heating block that supplies heat from the lamination heater to the lamination film. A laminating apparatus comprising: a laminating apparatus characterized in that the feeding means is controlled so as not to perform a feeding operation until a predetermined period of time has elapsed from the time when the heating means reached a laminating state.