JP2003181920A - Laminator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a laminator allowing the cut surface of a laminating film to cross the lateral sides of the film at a right angle and making the control of the cutting position of the laminating film by a cutter highly accurate. <P>SOLUTION: The laminator is equipped with first and second feed rollers successively arranged in a feed direction from an upstream side on the downstream side of a pressure roller for introducing discontinuous paper sheets into the space between the long transparent laminating films, led out from the rolls of the laminating films to bond them to the laminating films under pressure and the cutter arranged on the downstream side of the second feed roller; and has a feed speed control mechanism for individually decelerating the first and second feed rollers when the front and rear positions of each of the discontinuous paper sheets held between the laminated films are detected by sensors, for detecting the front and rear positions of each of the discontinuous paper sheets to reduce the feed speeds of both feed rollers and subsequently stopping the second feed roller to operate the cutter while slackening the laminating films and controlling the speeds of the first and second feed rollers thereafter to remove the slackening of the laminating films. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a laminator in which a discontinuous paper sheet is sandwiched between long transparent laminated films and heated and pressed.

[0002]

2. Description of the Related Art As an example of a conventional laminator, a pair of upper and lower winding rolls around which a pair of thermoplastic long transparent laminate films are wound, and upper and lower long transparent laminates drawn from the winding rolls are used. A belt conveyor that feeds a paper sheet between the films, a heating device that heats at least one of the upper and lower long transparent laminated films, and the heated upper and lower long transparent laminated films arranged on the downstream side of the winding roll. A pair of upper and lower pressure-bonding rollers for pressure-bonding each other, and first and second feed rollers arranged in the feeding direction on the downstream side of the pressure-bonding rollers side by side in the feeding direction, and on the downstream side of the second feed roller. Some of them are provided with a cutter, which cuts the pressure-bonded long transparent laminated film at regular intervals to produce a laminated finished product.

In such a laminator, when the laminate film is cut by a cutter while feeding the laminate film from the upstream side to the downstream side by the first and second feed rollers, the cut surface of the laminate film becomes
It will not be orthogonal to the side of the laminate film, and the cutting position of the laminate film by the cutter cannot be controlled with high accuracy.

In order to solve such a problem, it suffices to temporarily stop all the feed rollers and then operate the cutter, but if all the feed rollers are stopped,
Traces of contact of the pressure roller with the laminate film remain, resulting in poor finish of the finished laminate.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to make a cut surface of a laminate film orthogonal to a side of the laminate film while leaving no trace of contact of a pressure roller with the laminate film, and laminating with a cutter. An object of the present invention is to provide a laminator capable of controlling the cutting position of the film with high accuracy.

[0006]

SUMMARY OF THE INVENTION According to the present invention, a pair of winding rolls around which a long transparent laminate film is wound; a discontinuous paper sheet is sandwiched between the long transparent laminate films derived from the pair of winding rolls. A pair of crimping rollers for crimping;
The first and second feed rollers are arranged on the downstream side of the pair of pressure rollers in different positions in the feed direction in order from the upstream side; the cutters are arranged on the downstream side of the second feed roller; A sensor for detecting the front-rear position of the paper sheet sandwiched between the long transparent laminated films sent by the first and second feed rollers; and, when the sensor detects the front-rear edge position of the paper sheet, The feed speeds of the first and second feed rollers are both reduced to be low and then the feed speed of the second feed roller is set to zero, and the above-mentioned between the first feed roller and the second feed roller Operate the cutter while slackening the long transparent laminated film, and then make the feeding speed of the second feeding roller faster than the feeding speed of the first feeding roller to make the first feeding roller and the second feeding roller. Above long between It is characterized by having; feed rate control mechanism taking up slack of the bright laminate film.

When the sensor detects the front and rear edge positions of the paper sheet, the feed speeds of the first and second feed rollers rotating at high speed are both reduced to a low speed, and then the second feed roller is rotated. The feed speed is set to zero, the cutter is operated while slackening the long transparent laminated film between the first feed roller and the second feed roller, and the feed speed of the second feed roller is calculated first. The high speed rotation of the first feed roller is returned to the original high speed rotation, and the slack of the long transparent laminated film between the first feed roller and the second feed roller is reduced. A speed control mechanism may be provided.

Further, when the above-mentioned sensor detects the front and rear edge positions of the paper sheet, the feed speeds of the first and second feed rollers rotating at high speed are both reduced to a low speed, and then the second feed is performed. The feed speed of the roller is set to zero, the cutter is operated while slackening the long transparent laminated film between the first feed roller and the second feed roller, and then the feed speed of the first feed roller. Is returned to the original high-speed rotation, and at the same time, the rotation speed of the second feed roller is made faster than the rotation speed of the first feed roller, and the above-mentioned length between the first feed roller and the second feed roller is increased. It is possible to provide a speed control mechanism that feeds the slack of the lengthy transparent laminated film and then reduces the feed speed of the second feed roller to the same rotation speed as the feed speed of the first feed roller.

Further, it is preferable to dispose a third feed roller, which rotates in synchronization with the second feed roller, on the downstream side of the cutter.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment in which the present invention is applied to a desk type roller laminator 10 for office use will be described below with reference to the accompanying drawings.

On the front surface of the housing 12 (the right side in FIG. 1 is "front" and the left side is "rear"), the paper sheets P1 and P are formed.
An insertion opening 12a for inserting 2, P3, P4, ... Is provided, and a discharge opening 12b for discharging a laminate R, which will be described later, is formed on the rear surface of the housing 12.

Inside the housing 12, a pair of upper and lower pressure-bonding rollers 14A, 1 facing in the left-right direction (vertical direction in FIG. 2).
4B is arranged, and a pair of upper and lower first feed rollers 1 facing in the left-right direction are provided behind the pressure bonding rollers 14A, 14B.
6A and 16B, second feed rollers 18A and 18B,
Third feed rollers 20A and 20B are provided. Each roller 14A, 14B, 16A, 16B, 18A, 18
B, 20A, and 20B are parallel to each other. Each pair of rollers 14A, 14B, 16A, 16B, 18A, 1
Opposing surfaces of 8B, 20A, and 20B are in contact with each other, and a pair of rollers 14A, 14B, 16A, and 1 are provided.
The plane including all the contact lines of 6B, 18A, 18B, 20A, and 20B constitutes a substantially horizontal feed plane 22 located at the same height as the insertion port 12a and the ejection port 12b.
Pressure bonding rollers 14A, 14B and first feed roller 16A,
16B is linked to the motor M1 via a common belt (not shown), and all rollers 14A, 14B, 16A,
16B rotates in synchronization. In addition, the second feed rollers 18A and 18B and the third feed rollers 20A and 20B
Are linked to a motor M2 via a belt (not shown) common to all the rollers 18A, 18B, 20A, 20B.
Rotate in synchronism.

Inside the housing 12, a pair of upper and lower laminating film rolls (rolling rolls) 22A and 22B, which are located above and below the pair of pressure-bonding rollers 14A and 14B, and which are oriented in the left-right direction, are provided in each of the rollers 14 described above.
A, 14B, 16A, 16B, 18A, 18B, 20
The long transparent laminate films F1 and F2 are wound around the upper and lower laminate film rollers 22A and 22B so as to be parallel to A and 20B.

The laminated film F1 extending downward from the upper laminated film roll 22A is
It is wound around the upper pressure-bonding roller 14A so that the direction is almost 9
It is converted to 0 °, passes between the upper and lower pressure-bonding rollers 14A and 14B, and goes rearward along the feed plane 22, and the upper and lower feed rollers 16A, 16B, 18A, 18B, 20A, and 2A.
It is sandwiched between 0B. The laminating film F2 extending upward from the lower laminating film roll 22B is wound around the lower pressure bonding roller 14B to change the direction thereof by approximately 90 °, and the upper and lower pressure bonding rollers 14A and 14B.
Between the upper and lower feed rollers 16A, 16B, 18A, 18B, 20 toward the rear along the feed plane 22.
It is sandwiched between A and 20B.

A pressure roller 14A inside the housing 12,
A belt conveyor 24 is arranged in front of 14B to move in the direction of the arrow in FIG. 1 by the motor M3 to feed the paper sheet P between the pressure rollers 14A and 14B. Are located at approximately the same height as the feed plane 22.

In the vicinity of the upper pressure roller 14A, the upper laminate film roll 22A is taken out and the pressure roller 1
An infrared heater (not shown) for heating the laminated film F1 up to 4A is provided. That is, this embodiment is a type in which only one of the pair of laminate films F1 and F2 sandwiching the paper sheets P1, P2, P3 ... Is heated. The laminate film F1 is a thermoplastic film that produces adhesiveness when heated, and its specific structure does not matter.

Immediately before the first feed roller 16A and immediately after the second feed roller 18A, the paper sheets P1, P2, P3 are provided.
Sensors S1 and S2 for detecting that the front end edge and the rear end edge of ... Are close to each other are provided.

Immediately before the third feed roller 20B, the rollers 14A, 14B, 16A, 16B, 18 are provided.
While facing the axial direction of A, 18B, 20A, 20B,
A vertical fixed blade 26 that supports the lower surface of the laminate film F2 is disposed on the upper surface thereof, and a blade portion formed at the lower end of the fixed blade 26 is provided on the right side (upper side in FIG. 2) of the fixed blade 26. A cutter 28 located at the same height as the upper end is arranged. This cutter 28 is driven by the motor M4.
Along the front edge of the fixed blade 26, each roller 14A, 14
B, 16A, 16B, 18A, 18B, 20A, 20B
And reciprocates in the axial direction of, and cooperates with the fixed blade 26 to linearly cut the laminated films F1 and F2.

Infrared heater and motors M1 to M described above
4 and the sensors S1 and S2 are connected to a control circuit arranged in the housing 12, and the control circuit is connected to a power switch (not shown).

The above-mentioned first, second and third feed rollers 16
A, 16B, 18A, 18B, 20A, 20B, motors M1, M2, M4 and sensors S1, S2, and a control circuit constitute a feed speed control mechanism.

An encoder (not shown) is arranged near the second feed roller 18A. This encoder is connected to the control circuit, and the second feed roller 18A
The traveling distance information of the laminated films F1 and F2 calculated from the number of revolutions is transmitted to the control circuit.

Next, the roller type laminator 1 having the above structure
The procedure for using 0 will be described.

First, the first usage procedure will be described with reference to FIGS. 1 to 5. When the power switch is turned on, the infrared heater is activated, a signal is sent from the control circuit to the motors M1 to M3 and the sensors S1 and S2, and the sensor S
1 and S2 operate, and the motors M1 to M3 operate to operate the rollers 14A, 14B, 16A, 16B, 1
8A, 18B, 20A, 20B and the belt conveyor 24 rotate.

A plurality of paper sheets P1, P2, P3, P4 ...
.. are inserted into the insertion port 12a at regular intervals, the sheets P1, P2, P3, ... Are sequentially placed on the upper surface of the belt conveyor 24 through the insertion port 12a, and are vertically pressed by the moving belt. It is sent between the rollers 14A and 14B and sandwiched between the upper and lower laminated films F1 and F2.

Laminated film F with paper sheet P above and below
When sandwiched between 1 and F2, the peripheral portions of the upper laminated film F1 of the paper sheets P1, P2, P3, ... Are welded to the lower laminated film F2, and the upper laminated film F1 is P1, P2, P3 ...
・ Adhere to the upper surface of. The laminated films F1, F2 and the paper sheets P1, P2, P3 ...
14B and each feed roller 16A, 16B, 18A, 18
The rotational force of B, 20A, and 20B horizontally moves along the feed plane 22 toward the discharge port 12b.

The upper graph of FIG. 5 shows the pressure roller 14
A, 14B and the rotation speeds of the first feed rollers 16A, 16B are shown with time, and the lower graph shows the second and third feed rollers 18A, 18B, 20A, 20B.
3 shows the change in the rotation speed of each time. Crimping rollers 14A and 14B and first, second and third feed rollers 16
Although A, 16B, 18A, 18B, 20A, and 20B are initially rotating at high speed (see (1) and (1 ') in the graph), the sensors S1 and S2 are front and rear edges of the leading paper sheet P1. When it is detected that the edges are close to each other, the sensor S
A detection signal is sent from 1 and S2 to the control circuit, and the control circuit which receives the detection signal sends a signal to the motors M1 and M2, and the pressure bonding rollers 14A and 14B and the first, second and third feeding rollers 16A, The rotation speed of 16B, 18A, 18B, 20A, and 20B is reduced, and the pressure rollers 14A and 14B and the first,
Second and third feed rollers 16A, 16B, 18A, 18
B, 20A, and 20B are rotated at a low speed (see (2) and (2 ') in the graph).

After that, when the control circuit determines that the laminating films F1 and F2 have traveled a predetermined distance based on the travel distance information from the encoder, the pressure roller 14 is pressed.
A signal is sent from the control circuit to the motor M2 while the A, 14B and the first feed rollers 16A, 16B are rotated at low speed, and the second and third feed rollers 18A, 18B, 20A, 20 are sent.
The rotation speed of B becomes zero (see (2 '') in the graph). Then, the laminate films F1 and F2 move the first feed rollers 16A and 16B and the second feed rollers 18A and
Bending downward between 18B (not shown), a signal is sent from the control circuit to the motor M4, and the cutter 28 causes a virtual line from the initial position indicated by the solid line in FIG. 2 immediately after the trailing edges of the laminate films F1 and F2. It moves linearly to the cutting completion position shown by and then returns to the initial position.

When the cutter 28 returns to the initial position, a signal is sent from the control circuit to the motor M2, and the second and third feed rollers 18A, 18B, 20A and 20B rotate again at high speed ((3 'in the graph. )reference). When the control circuit determines from the traveling distance information from the encoder that the laminating films F1 and F2 have traveled a predetermined distance by the second feed roller 18A, a signal is sent from the control control circuit to the motor M1 and the pressure bonding rollers 14A and 14B. And the first feed rollers 16A and 16B also rotate at high speed again (see (3) and (3 ') in the graph), and the laminated films F1 and F
2 No downward bending.

The pressure rollers 14A, 14B and the respective feed rollers 16A, 16B, 18A, 18B, 20A, 20B rotate again at a high speed (see (1) (1 ') in the graph), so that FIGS. As shown, the rear end portions of the laminated films F1 and F2 extend from the outlet 12b to the housing 1
When the front edge and the rear edge of the second paper sheet P2 are detected by the front and rear sensors S1 and S2 at the same time, the pressure rollers 14A and 14B and the first, second and third rollers are projected. Feed rollers 16A, 16B, 18A, 18B, 20A, 2
The rotation speed of 0B becomes low ((2) in the graph
(See (2 ')), and then the second and third feed rollers 18
The rotational speed of A, 18B, 20A, 20B becomes zero (see (2 '') in the graph), and the laminating films F1, F2 face downward between the first and second feed rollers 16A, 16B, 18A, 18B. (See FIG. 3), the cutter 28 moves the rollers 14A, 14B, 16A, 16B, 1
By reciprocating in the axial direction of 8A, 18B, 20A, 20B (direction orthogonal to the laminating films F1, F2), the second and third feeding rollers 18A, 18B, 20A, 20B of the laminating films F1, F2 are used. Laminated product R
Is obtained (see FIG. 3).

After that, the second and third feed rollers 18A,
18B, 20A and 20B rotate again at high speed (see (3 ') in the graph), and after a short delay, the first feed roller 1
When 6A and 16B rotate again at high speed (see (3) in the graph), the finished laminate R is discharged from the discharge port 12B to the outside of the housing 12 by the third feed rollers 20A and 20B (see FIG. 4). At the same time, the bending of the laminate films F1 and F2 between the first and second feed rollers 16A, 16B, 18A and 18B is eliminated, and the laminate film becomes linear (see FIG. 4).

By such a procedure, the paper sheets P1, P2, P3 ... Between the upper and lower laminate films F1, F2.
・ The finished laminate R sandwiching the
Emitted from.

FIG. 6 shows the pressure roller 14A, 14B and the first, second and third feed rollers 16 in the second use procedure.
It is a graph which shows the rotation speed of A, 16B, 18A, 18B, 20A, 20B and the 3rd feed roller 20A, 20B for every time. The upper graph shows pressure rollers 14A, 1
4B and the rotation speeds of the first feed rollers 16A and 16B over time. The lower graph shows the rotation speeds of the second and third feed rollers 18A, 18B, 20A, and 20B over time. Shows changes. In this usage procedure, the pressure bonding rollers 14A, 14B and the first, second, and third feed rollers 16A, 16B, 18A, 18B, 20A, 2
The method of controlling the rotation speed of 0B is different from that of the first usage procedure.

The pressure rollers 14A, 14B and the first, second,
Third feed rollers 16A, 16B, 18A, 18B, 2
0A, 20B is the first high speed rotation ((1) in the graph,
(Refer to (1 ')) to low speed rotation ((2) in the graph,
(Refer to (2 ')), and the second and third feed rollers 18
A, 18B, 20A and 20B stop (see (2 '') in the graph), and the laminate films F1 and F2 move to the first feed rollers 16A and 16B and the second feed roller 18 respectively.
It is the same as the first usage procedure until it is bent downward between A and 18B, but after the cutter 28 linearly reciprocates between the initial position and the cutting completion position, the pressure roller 14A,
14B and the first feed rollers 16A, 16B rotate at high speed (see (3) in the graph), and at the same time, the second and third feed rollers 18A, 18B, 20A, 20B move to the pressure bonding rollers 14A, 14B. And the first feed rollers 16A, 16
It rotates at a speed faster than B (see (3 ') in the graph). At this time, the first feed rollers 16A, 1
6B and the second feed rollers 18A, 18B due to the difference in rotational speed, the laminated film F between the first feed rollers 16A, 16B and the second feed rollers 18A, 18B.
The bending of F1 and F2 is eliminated. After this, the second and third feed rollers 18A, 18B, 20A and 20B are decelerated, and the pressure bonding rollers 14A and 14B and the first feed rollers 16A and 1B.
It rotates at high speed at the same speed as 6B (see (3 '') in the graph).

According to the present embodiment as described above, the laminated films F1 and F2 are temporarily set to the moving speed of the laminated films F1 and F2 by the second and third feed rollers 18A, 18B, 20A and 20B once. Since the cutter 28 cuts the laminated film F
1, 1 and F2 can be cut linearly so as to be orthogonal to the sides thereof, and the cutting position of the laminate films F1 and F2 by the cutter 28 can be controlled with high accuracy.

The pressure rollers 14A, 14B and all the feed rollers 16A, 16B, 18A, 18B, 20A,
20B is not stopped at the same time, the pressure roller 14
A, 14B and the first feed rollers 16A, 16B are decelerated, and the second and third feed rollers 18A, 18B, 20
Since only A and 20B are stopped, there is no trace of the contact of the pressure bonding rollers 14A and 14B to the laminate films F1 and F2, and the finished laminate R has a good finish.

In each of the above embodiments, the paper sheets P1, P2, P
3 ... is sandwiched between a pair of laminated films F1 and F2, but the present invention uses one sheet and one sheet.
Any type of heat-pressing a thermoplastic laminate film and a paper sheet, such as a type in which a sheet of laminated film is adhered, a permanent type in which these are laminated, and a peelable type in which these can be peeled off, can be applied.

The laminator 10 of this embodiment is
Belt conveyor 24, laminated film roll 22
A, 22B, first, second and third feed rollers 16A, 1
6B, 18A, 18B, 20A, 20B, fixed blade 26,
The cutter 28 and the motors M1 to M4 are housed in a single housing 12, but as shown by the phantom line in FIG. 1, the feeding unit UA (the belt conveyor 24 and the motor M3 has individual housings). ), Laminating unit UB (laminate film rolls 22A, 22B, first feed rollers 16A, 16)
B, sensor S1 is housed), cutter unit UC (second and third feed rollers 18A, 18B, 20A, 20)
B, the fixed blade 26, the cutter 28, and the sensor S2) may be divided and the units UA, UB, and UC may be coupled to each other. Also in this case, the motors M1 to M4 are connected to the control circuit, and the belt conveyor 24 and the pressure roller 14 are connected.
A, 14B, delivery rollers 16A, 16B (delete) first,
Second and third feed rollers 16A, 16B, 18A, 18
It is necessary to coordinate the movements of B, 20A, 20B and the cutter 28 with each other.

Further, in this embodiment, the two sensors S1,
Although S2 is used, it is also possible to use only one sensor of either S1 or S2.

Further, one motor is used, and the motor, the belt conveyor 24, the first, second and third feed rollers 1 are used.
6A, 16B, 18A, 18B, 20A, 20B and the cutter 28 can be linked via a clutch, a gear or the like so that these members move in the same manner as described above.

[0040]

According to the present invention, the cut surface of the laminate film is made orthogonal to the side of the laminate film while leaving no trace of the contact of the pressure roller with the laminate film. It is possible to control the cutting position of the laminated film with high precision.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional side view showing a state in which each feed roller is rotating at a high speed, according to an embodiment of an office desk type laminator to which the present invention is applied.

FIG. 2 is a plan view showing a state of the inside of the laminator with the housing omitted.

FIG. 3 is a vertical cross-sectional side view of the laminator showing a state in which the pressure roller and the first feed roller rotate at a low speed, the second and third feed rollers stop, and the cutter cuts the laminate film. is there.

FIG. 4 is a vertical cross-sectional side view of the laminator showing a state in which the laminate film is cut by the cutter and the pressure bonding rollers, the first, second and third feeding rollers are returned to the high speed rotation state.

FIG. 5 is likewise a pressure roller in the first usage procedure,
It is a graph which compares and shows the rotation speed of each time of the 1st, 2nd, and 3rd feed roller.

FIG. 6 is likewise a pressure roller according to the second usage procedure,
It is a graph which compares and shows the rotation speed of each time of the 1st, 2nd, and 3rd feed roller.

[Explanation of symbols]

10 Laminator 12 housing 12a insertion slot 12b outlet 14A pressure roller 14B pressure roller 16A First feed roller 16B First feed roller 18A Second feed roller 18B Second feed roller 20A Third feed roller 20B Third feed roller 22A Laminated film roll (rolling roll) 22B Laminated film roll (rolling roll) 22 Feed plane 24 belt conveyor 26 Fixed blade 28 cutter F1 laminated film F2 laminated film M1 motor M2 motor M3 motor M4 motor R laminated finished product S1 sensor S2 sensor P1 paper leaf P2 paper leaf P3 paper leaf

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 4F211 AC03 AD06 AD07 AG01 AG03                       AP06 AR08 AR09 SA08 SC07                       SD01 SH06 SJ15 SJ26 SJ29                       SP01 SP04 SP26

Claims (4)

[Claims] 1. A pair of winding rolls around which a long transparent laminate film is wound; A pair of long transparent laminate films led out from the pair of winding rolls and sandwiching a discontinuous paper sheet for pressure bonding. Pressure-bonding rollers; first and second feed rollers arranged downstream of the pair of pressure-bonding rollers in order from different positions in the feeding direction, and arranged downstream of the second feed roller. A cutter; a sensor for detecting the front-rear position of a paper sheet sandwiched between the long transparent laminated films fed by the first and second feed rollers; and the sensor for detecting the front-rear edge positions of the paper sheet At this time, the feed speeds of the first and second feed rollers are both reduced to be low, and then the feed speed of the second feed roller is set to zero, so that the first feed roller and the second feed roller are Between the above Operate the cutter while slackening the shaku transparent laminated film, and then make the feeding speed of the second feeding roller faster than the feeding speed of the first feeding roller, thereby making the first feeding roller and the second feeding roller A laminator having a feed speed control mechanism for removing the slack of the long transparent laminated film between the two. 2. The laminator according to claim 1, wherein
When the sensor detects the front and rear edge positions of the paper sheet, the feed speeds of the first and second feed rollers that are rotating at high speed are both reduced to a low speed, and then the feed speed of the second feed roller is changed. Set to zero, operate the cutter while sagging the long transparent laminated film between the first and second feed rollers, and then rotate the feed speed of the second feed roller to the original high speed. And then return the feed speed of the first feed roller to the original high-speed rotation to remove the slack of the long transparent laminated film between the first feed roller and the second feed roller. Laminator with control mechanism. 3. The laminator according to claim 1, wherein:
When the sensor detects the front and rear edge positions of the paper sheet, the feed speeds of the first and second feed rollers that are rotating at high speed are both reduced to a low speed, and then the feed speed of the second feed roller is changed. Set to zero, operate the cutter while sagging the long transparent laminated film between the first feed roller and the second feed roller, and then rotate the feed speed of the first feed roller to the original high speed. At the same time, the rotation speed of the second feed roller is made faster than the rotation speed of the first feed roller, and the long transparent laminated film between the first feed roller and the second feed roller is A laminator provided with a speed control mechanism that feeds slack and then reduces the feed speed of the second feed roller to the same rotation speed as the feed speed of the first feed roller. 4. The laminator according to claim 1, further comprising a third feed roller disposed downstream of the cutter, the third feed roller rotating in synchronization with the second feed roller.