JPS61213153A - Laminating device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention will be explained in the following order.

A: Industrial field of application B: Overview of the invention C: Prior art (Figs. 1 and 2) D: Problems to be solved by the invention (Figs. 1 and 2) E: Means for solving the problems (Fig. 1) F action (1st
Figure) G Embodiment (Figures 1 to 4) H Effects of the Invention A Industrial Field of Application The present invention relates to a laminating device, and particularly to a laminating device that automatically applies a protective film to the surface of a base paper inserted through a base paper insertion slot. It is suitable for application to an automatic laminating device that performs bonding.

B. Summary of the Invention The present invention provides a laminating device in which a protective film is bonded onto a base paper by superimposing a base paper on a laminate film and heat-treating the base paper, when the operation mode condition is to draw out the laminate film from a supply reel. By providing a rotation detection means for detecting that the supply reel is not rotating, it is possible to immediately detect an abnormality in the transport of the laminate film when it occurs.

C. Prior Art As this type of automatic laminating device, one having the configuration shown in FIG. 1 has been devised. In FIG. 1, reference numeral 1 denotes a supply reel, which supplies a laminating film 2 wound around a reel body to a laminating roller 5 around a guide roller 3.4. The laminating roller 5 is rotated counterclockwise as shown by arrow a by a drive motor 6 via a separate drive belt, and thus draws out the laminate film 2 from the supply reel 1.

As shown in FIG. 2, the laminate film 2 has two transparent base films made of a heat-resistant synthetic resin material, and a thermoplastic resin film is placed on the surface of the base film 2A on the side of the laminating roller 5 at a predetermined distance. A transparent protective film 2B made of a resin material and an adhesive layer 2C are laminated in sequence. The protective film 2B and the adhesive layer 2C are formed into a rectangular shape as a whole, with a length slightly shorter than the length and width of the rectangular base paper, and the base paper is placed on the adhesive layer 2C. When aligned, an adhesive layer 2C and a protective film 2 are formed on the outside of the base paper.
B is designed so that it does not protrude from the base paper.

The base paper is inserted one by one through the paper feed mechanism 7 from a base paper insertion slot (not shown). The paper feeding mechanism 7 has an entrance roller 8 which is rotated counterclockwise as shown by an arrow by a drive motor 6 via a separate drive belt, and a driven roller 9 which rolls into contact with the entrance roller 8. Driven roller 9
When the leading edge of the base paper is inserted between the input roller 8 and the driven roller 9 while being guided by the guide plate 10 provided on the upstream side of the base paper, the base paper is inserted between the input roller 8 and the driven roller 9.
to the downstream guide plate ll side.

The base paper is transported while being guided by the downstream guide plate 11, passes below the guide roller 4, and is positioned so as to overlap the protective film 2B and adhesive layer 2C of the laminate film 2.

Sublimable dye molecules are attached to the surface of the base paper by transferring the original image using a separate printing device, and these dye molecules are applied to the base paper and the adhesive layer 2C or the protective layer 2C by the heat heated during lamination. Dispersed in the film 2B for
It is designed to both fix and protect the surface.

Above the laminating roller 5, a laminating heater 15 is installed.
is provided so as to be in pressure contact with the surface of the laminating roller 5 with the laminate film 2 in between, and when the base paper is aligned on the adhesive layer 2C (Fig. 2), the laminate film 2 is pressed together with the base paper. By passing between the laminating roller 5 and the laminating heater 15, the adhesive layer 2C and the protective film 2B are heated by the laminating heater 15. At this time, the protective film 2B is slightly softened, while the adhesive layer 2C is activated to a state that produces sufficient adhesive strength, and thus the protective film 2B is easily removed from the base film 2A. At the same time, a state is obtained in which the adhesive layer 2C can adhere to the base paper.

Such activation of the adhesive layer 2C and the protective film 2B occurs while the adhesive layer 2C, the protective film 2B, and the base paper are passing through the lamination heater 15, and during this time, the dye on the base paper is The molecules are sublimated and dispersed in the base paper and the adhesive layer 2C or the protective film 2B. In this way, the adhesive layer 2C, the protective film 2B, and the base paper are separated from the downstream side of the laminate heater 15. As the temperature rapidly cools as it leaves, the protective film 2
B and the adhesive layer 2C rapidly solidify (possibly due to
The protective film 2B is adhered onto the surface of the base paper via the adhesive layer 2C, and the base paper and the protective film 2
The dye molecules dispersed within B are solidified and fixed.

Thereafter, the laminate film 2 and the base paper reach a guide roller 22 that constitutes a paper discharge mechanism 21. The guide roller 22 changes the transport direction of the base film 2A of the laminate film 2 to a direction in which it is pulled away from the paper discharge mechanism 21, and transports the base film 2A to the guide roller 22 and the take-up reel 24. At this time, the two base films are separated in the direction perpendicular to the base paper (on the other hand, the adhesive layer 2C is hardened and adhered to the base paper with strong adhesive force, so the laminate film 2 Adhesive layer 2C and protective film 2B
is peeled off from the base film 2A and remains on the base paper to form a finished paper M, and only the base film 2A is wound onto the take-up reel 24 via the guide roller 23.

On the other hand, the finished paper M (made by adhering the protective film 2B on the base paper with the adhesive layer 2C) transferred from the laminating roller 5 to the paper ejection mechanism 21 side is transferred to the paper ejection roller 25 and the driven roller 26 that rolls into contact with this. In between, paper ejection roller 2
5 is connected to a drive motor 6 via a separate drive belt (not shown).
The finishing paper is delivered onto the paper discharge guide plate 27 by being rotationally driven in the counterclockwise direction as shown by arrow C.

The paper discharge guide plate 27 has a rear end folded back in a cross-sectional shape, and the leading edge of the finished paper M is folded by pressing the finished sheet M onto the paper discharge guide plate 27 by the paper discharge roller 25. Even when the finished paper M is in contact with the curved portion 27A, the finished paper M is still sent out by the paper ejection roller 25, so that the finished paper M is warped upward, and in this state, the paper ejection roller 25 touches the rear end of the finished paper M. When the finished paper M
The paper is sandwiched between the paper discharge roller 25 and the paper discharge driven roller 28, and then sent out from the paper discharge outlet.

The above operation is repeated every time a base paper is inserted into the paper feed mechanism 7, and the next protective film 2B and adhesive layer 2C formed on the base film 2A are kept at a predetermined interval. , is positioned upstream of the laminating roller 5, and is in a state where it is waiting for the next sheet of paper to be inserted.In this way, each time a sheet of sheet of paper is inserted, the laminating operation (that is, a protective film is applied to the sheet of base paper) is performed automatically. 2B) is repeated.

In addition to the above configuration, in order to superimpose and position the base paper inserted from the paper feed mechanism 7 on the protective film 2B and adhesive layer 2C of the laminate film 2 supplied from the supply reel 1, the light emitting element PA and a paper-in sensor P having a photodetector configuration consisting of a photodetector PB and a photodetector PB facing thereto.
A paper set sensor PS and a home position sensor HP are provided.

The paper in sensor PI is disposed near the upstream side of the input roller 8, and detects when the leading end of the base paper comes to the vapor in sensor P1 position while being guided by the upstream Tominai plate lO. The detection output DI is supplied to the drive control circuit 3I to drive the input roller 8, thereby feeding the base paper sandwiched between the input roller 8 and the driven roller 9 toward the downstream guide plate 11 (.

The paper set sensor PS is disposed near the upstream side of the laminating roller 5, and detects when the leading end of the base paper is guided by the guide plate 11 and reaches the paper set sensor 2S position, and outputs the detection output D2. It is supplied to the drive control circuit 31 to stop the input roller 8 and to start heating the laminate heater 15.

Home position sensor HP is, Minate roller 2
The laminate film 2 is arranged near the downstream side of the laminate film 2.
Detection is performed by detecting when a home position mark (for example, a through hole penetrating the thickness of the base film 2A) provided at a slightly forward position of each of the protective films 2B and the adhesive layer 2C comes. The output D4 is supplied to the drive control circuit to stop the laminating roller 5. This results in 1
When a sheet of cardboard is laminated, the protective film 2B and adhesive layer 2C used for the next lamination are placed at a position that exactly matches the cardboard as determined by the paper set sensor PS (i.e., at the home position).

In this way, with the laminate film 2 positioned at the home position, after the thick film is positioned and the laminate heater is heated, when the laminate heater 15 rises to a predetermined lamination temperature, the laminate roller 5 is rotationally driven, the finished paper M is delivered to the paper ejection mechanism 21 side while laminating the base paper, and the finished paper M is guided to be ejected by rotating the paper ejection roller 25. The paper is discharged to a paper discharge port via a plate 27 and a paper discharge driven roller 28.

When the laminating operation for one sheet of base paper is completed in this way and the rear end portions of the protective film 2B and the adhesive layer 2C have finished passing the laminating roller 5, the laminating film 2 is laminated onto the next protective film. 2B and adhesive layer 2
It is pulled out from the supply reel 1 by the laminating roller 5 until the tip of C is positioned at a predetermined position on the upstream side of the laminating roller 5. In the case of this embodiment, as shown in FIG. 2, a positioning hole 2D is bored through the thickness of the base film 2A at a predetermined position in the direction from the tip of the protective film 2B and the adhesive layer 2C. When the positioning hole 2D reaches the position of the paper set sensor PS and the light from the light emitting element PA can reach the light receiving element PB through the positioning hole 2D, the laminating roller 5 rotates. By stopping the operation, the next protective film 2B and adhesive layer 2C can be positioned at a predetermined position upstream of the laminating roller 5 (ie, home position).

Protective film 2 actually positioned in this way
When the base paper is fed into B and the adhesive layer 2C, when the base paper reaches a state where it blocks the light passing through the paper set sensor PS, it is assumed that the position of the base paper has been completed. - Stop the roller 8. Then, the base paper can be superimposed on the protective film 2B and the adhesive layer 2C.

On the other hand, a film end sensor F having a photodetector configuration is placed between the guide rollers 3 and 4 in the open position to sandwich the laminate film 2.
When the opaque end mark attached to the end position of the laminate film 2 wound on the supply reel 1 reaches the position of the film end sensor F2, it detects this and drives the detection output D3. supplied to the control circuit 31;
Thereafter, the drive control circuit 31 controls the entire laminating apparatus to a state where the operation is completed.

Problems to be Solved by the Invention D According to the laminating device having the above configuration, each component performs a predetermined function to automatically laminate the inserted base paper. If a related abnormality occurs in the transfer operation, there is a risk that a secondary accident may occur based on the abnormality.

For example, when the base paper is positioned at the paper set sensor PS position, the drive control circuit 31 rotates the laminating roller 5 to laminate the laminate film 2 and the base paper, but if, for example, the drive motor 6 breaks down. When the feed belt between the drive motor 6 and the laminating roller 5 is cut and the laminating roller 5 cannot rotate, the heating power is turned off to the laminating heater 15. The laminating film 2 and the base paper are stopped between the laminating roller 5 and the laminating heater 15 in the supplied state.

In this state, the same part of the laminate film 2 will be heated by the laminate heater 15 for a long time, and there is a risk that it will eventually emit smoke or catch fire.

In addition, even though the end mark of the laminating film 2 fed out from the supply reel l arrives at the film end sensor F2 position and the drive control circuit 31 once controls the laminating apparatus 5 as a whole to end its operation, the operator may perform an erroneous operation. When the laminating film 2 is further pulled out in the direction of the laminating roller 5 and the end mark is mistakenly passed through the film end sensor F2 position, the drive control circuit 31 stops the laminating operation. After the detection state cannot be maintained, the laminating roller 5 and the laminating film 2
There is a problem that some people end up in a state where they keep driving the motor forever.

Similarly, if the operator accidentally starts the laminating device without installing the laminating film 2 between the supply reel 1 and the take-up reel 24, the drive motor 6
There is a risk that the machine may become left spinning.

Furthermore, when attaching the laminate film 2 between the supply reel 1 and the take-up reel 24, if the laminate film 2 is mistakenly attached with the front and back sides reversed, the adhesive layer 2C will come into direct contact with the laminate heater 15. Therefore, the frictional resistance of the laminate heater 15 against the laminate film 2 becomes extremely large, and there is a possibility that the laminate film 2 cannot be transferred even if the laminate roller 5 rotates. At this time, the laminate heater 15 becomes overheated, and there is a risk that smoke or fire may occur. In order to avoid this problem, silicon is applied to the surface of the protective film 2B of the laminate film 2 to reduce frictional resistance.
This effect is lost when flipped.

The present invention has been made in consideration of the above points, and aims to prevent secondary accidents from occurring by reliably and promptly detecting abnormalities in the transport of the laminate film 2 when they occur. This is what I did.

E Means for Solving the Problem The laminate film 2 consisting of the protective film 2B and the adhesive layer 2C laminated on the base film 2A is pulled out from the supply reel 1, and the protective film 2B is removed from the supply reel 1.
In the laminating apparatus, the protective film 2B is bonded by the adhesive layer 2C by heating the base paper with the lamination heater 15 in a state where the base paper is superimposed on the adhesive layer 2C. Rotation detection means (3) detects that the supply reel 1 is not rotating when the operation mode condition is for
5, 38).

F action When the operating mode conditions are such that the laminate film is drawn out from the supply reel 1 and laminated, if the laminate film transport system is normal when the laminate film 2 is drawn out from the supply reel 1, the supply reel 1 It rotates in accordance with the amount of film 2 pulled out.

On the other hand, if there is an abnormality in the laminate film transport system, the laminate film 2 will not be pulled out from the supply reel 1, so the supply reel 1 will be in a stopped state. If this abnormal condition occurs, the rotation detecting means can immediately detect it, thereby effectively preventing the occurrence of a secondary accident.

G example An embodiment of the present invention will be described in detail below with reference to the drawings.

In the present invention, as shown in FIG.
It has a rotation detector 35 that detects whether or not the supply reel is rotating in relation to the supply reel.

In this embodiment, the rotation detector 35 includes a strobe disk 36 that is integrally fixed to the rotating shaft of the supply reel 1, and a strobe disk 36 that is mounted on both sides of the strobe disk 36. and a detection signal generating element 37 having a detector configuration.

The strobe disc 36 is connected to the transparent portion 37A while maintaining a predetermined interval.
and opaque parts 37B are sequentially and alternately formed, so that when the supply reel 1 rotates, the detection signal generating element 37
As shown in FIG. 4(A), a rotation detection signal S1 whose signal level is varied at a period corresponding to the rotation speed of the supply reel 1 is generated from the rotation detection signal S1, which is sent to the rotation detection circuit 38 provided in the drive control circuit 31. supply

As shown in FIG. 3, the rotation detection circuit 38 generates a rotation detection signal Sl(
4(A)) is received by the Schmitt circuit 39.

The Schmitt circuit 39 shapes the waveform into a pulse signal S2 (FIG. 4(B)) that falls from a logic "1" level to a logic "0" level when the rotation detection signal 81 reaches a predetermined threshold level SL1 or higher. and input it to the differentiating circuit 40.

The differentiating circuit 40 differentiates the pulse signal S2 with a series circuit of a capacitor C1 and a resistor R3, and clamps the upwardly rising differential waveform with a diode D1 connected to its output terminal, thus outputting the signal shown in FIG. C)
As shown in FIG.
1 as the first condition signal.

A drive command signal S4 for the drive motor 6 is supplied to the AND circuit 41 as a second condition signal, and the drive command signal S4 rises to the logic rlJ, indicating that the drive motor 6 is under the condition to be rotationally driven. When the pulse signal S3
For example, the AND condition output S4 which falls below the signal level of 1/2 of that amplitude falls to the logic rOJ, and the integrating circuit 4
Send to 2.

The integrating circuit 42 has a configuration in which a capacitor C2 is connected in a T-shape to a series circuit of resistors R5 and R6, and a diode D2 is connected between both ends of the resistors R5 and R6.
When AND condition output S4 rises to logic “1”, resistor R
By charging the capacitor C2 through the capacitor C2, an integral output 55 (FIG. 4(E)) which gradually rises is sent out. The charge in the capacitor C2 is determined by the AND condition output S4 as logic “
0", the input of resistor R5 is reduced to a low voltage corresponding to a logic "0", and the output of resistor R6 is locked to a low voltage level through diode D2, thereby causing the integrated output S5 to Forced to maintain a low voltage level. With resistors R5 and R6 locked at a low voltage level, the charge on capacitor C2 is rapidly discharged, so that when AND condition output S4 rises to a logic "1" level, integral output S5
is made to rise from the rOJ level.

The integral output S5 is supplied to the Schmitt circuit 43, and the integral output S5 reaches the threshold level LS2 (Fig. 4 (E)).
When the value exceeds 0, a feed abnormality detection output S6 which falls from a logic "1" level to a logic "0" level is sent out.

This abnormality detection output S6 is supplied to an abnormality indicator 49 (FIG. 1) to notify the operator of the occurrence of an abnormality.

In the configuration shown in FIG. 3, the drive command signal S4 is logic "H"
When the level is rising, the drive control circuit 31 (first
In FIG. 2, the laminating film 2 is pulled out from the supply reel 1 side and is controlled to be in a driving state where it is supplied to the laminating roller 5 and the laminating heater 15. At this time, if the transport system for the laminate film 2 is operating normally, the laminate film 2 is pressed against the laminate roller 5 by the laminate heater 15, so that the paper ejection mechanism 21 is moved in accordance with the rotation of the laminate roller 5. Therefore, as the laminate film 2 is drawn out from the supply reel 1, the supply reel 1 continues to rotate.

At this time, the strobe disk 3
6 rotates, the detection signal generating element 37
As shown in the previous section at time 1 in FIG. As shown in (B), a pulse signal S2 that alternately switches between logic "1" and logic "0" levels is generated, and a pulse signal S3 that falls in response to the fall of the pulse signal S2 is obtained at the output end of the differentiating circuit 40. . Therefore, the output terminal of the integrating circuit 42 is provided with an integral output S5 (fourth (E)) is obtained, whereby the feed abnormality detection output S6 of the Schmitt circuit 43 is maintained at the logic "1" level.

On the other hand, if an abnormality occurs in the transport system of the laminate film 2 and the laminate film 2 is not transported, the supply reel 1 and therefore the strobe disc 36 cannot rotate, and the detection signal generating element 370 detects the rotation. signal 3
As shown after time tX in FIG. 4A, the signal level of 1 is maintained at a constant value (for example, 0 level) corresponding to the amount of light from the light emitting element 37A reaching the light receiving element 37B. In this state, Schmitt circuit 3
Since the pulse signal S2 is not obtained at the output terminal of 9, the logic rOJ or logic "1" level is maintained (see Fig. 4 (B)).
)), the differential waveform pulse signal S3 is no longer obtained from the differentiating circuit 40 (FIG. 4(C)).

Therefore, the AND condition output S4 obtained at the output terminal of the AND circuit 41 no longer changes from logic "1" to "0", so the integrating circuit 42 cannot discharge the charge in the capacitor C2, and the integral output S5 gradually rises
(Fig. 4 (E)''), the signal level of the integral output S5 eventually exceeds the threshold level SL2 of the Schmitt circuit 43 (Fig. 4 (E)), and as a result, the output S6 of the Schmitt circuit 43 increases. A fall from logic "1" to "0" indicates that a feed abnormality has occurred (FIG. 4(F)).

In this way, if the state in which the feeder l stops rotating continues, the rotation detection circuit 38 will send out the feed abnormality detection output S6 after a predetermined period of time has elapsed from the start of this state.

Therefore, when an accident occurs in which the laminate film 2 cannot be pulled out from the supply reel 1, this can be reliably detected, thereby preventing the occurrence of secondary accidents.

First, when the laminate film 2 is being fed between the laminate roller 5 and the laminate heater 15 with the base paper positioned on the protective film 2B and the adhesive layer 2C at the position of the paper set sensor PS, for example, when the motor is When the supply reel 1 cannot rotate due to a breakdown or an accident such as the feed belt for the laminating roller 5 being cut, the rotation detection circuit 38 detects this.
can be detected immediately by Thus, the rotation detection circuit 38
If the power supply to the laminate heater 15 is cut off by the detection output S6 sent from the laminate heater 15, it is possible to prevent secondary accidents such as smoking and ignition due to excessive heating of the laminate heater 15.

In addition, there may be cases where the laminating device is started without the laminating film 2 installed between the supply reel 1 and the take-up reel 24, or when the laminating film 2 is pulled out from the supply reel 1 to the end after passing the end mark. Even when an abnormal operation is performed, the abnormality can be immediately detected when the supply reel 1 stops rotating and displayed on the display 49, thereby notifying the operator that the abnormal operation has been performed.

Furthermore, if the laminate film 2 is installed upside down between the supply reel 1 and the take-up reel 24, the adhesive 12c will come into direct contact with the laminate heater 15, and the laminate film will be damaged due to large friction. 2
If it becomes impossible to transfer, it is transferred to the rotation detection circuit 3B.
can be reliably detected.

In addition, when a transport abnormality occurs, such as the laminated film 2 installed between the supply reel 1 and the take-up reel 24 being cut midway or becoming loose, the rotation detection circuit detects such abnormality. 38 can be reliably detected.

In the above description, the strobe disc 36 is fixed on the rotation axis of the supply reel 1 to optically detect whether or not the supply reel 1 is rotating. However, instead of this, The strobe disc 36 may be driven via a separate rotation coupling means (also, instead of detecting rotation optically, rotation may be detected by magnetic means, mechanical contact means, etc.). The same effect as the above case can also be obtained.

Further, in the above embodiment, the laminate heater 15 is connected to the laminate roller 5 with the laminate film 2 in between.
We have described the case in which the laminate film 2 is pulled out from the supply reel 1 by the rotation of the lamination roller 5 by pressing the top of the laminate film 2, but in order to pull out the laminate film 2 from the supply reel 1, a capstan and a pinch roller are separately attached to the laminate. It may be configured such that the film 2 is sandwiched therebetween and the laminate film 2 is transported.

H Effects of the Invention As described above, according to the present invention, when an abnormality occurs in the transport system of the laminate film 2 and the laminate film 2 cannot be transported, this is detected. By doing so, it is possible to realize a laminating apparatus that can effectively prevent the occurrence of secondary accidents with a simple configuration.

[Brief explanation of the drawing]

FIG. 1 is a systematic route diagram showing one embodiment of the laminating apparatus according to the present invention, FIG. FIG. 3 is a connection diagram showing the detailed configuration of the rotation detection circuit 38 of FIG. 1, and FIG. 4 is a signal waveform diagram showing signals of each part thereof. 1... Supply reel, 2... Laminating film, 5... Laminating roller, 6...
... Drive motor, 15 ... Laminate heater, 24 ... Take-up reel, 35 ... Rotation detector, 36 ... Strobe disc, 37・・・・・・
...Detection signal generating element, 31... Drive control circuit, 38... Rotation detection circuit, 49... Abnormality indicator.

Claims (1)

[Scope of Claims] A laminate in which a protective film is placed on a base film and a base paper is placed on an adhesive layer, and the protective film is bonded to the adhesive layer by heating with a laminate heater. A laminating apparatus, characterized in that the laminating apparatus is provided with rotation detection means for detecting that the supply reel is not rotating when the operation mode condition is to draw out the lamination film from the supply reel.