JP2016132171A - Laminator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a laminator that can apply laminating processing on the surface of a laminate to be sufficiently flat.SOLUTION: A laminator 1 comprises a heating and pressurizing roller 40 that makes a laminate film express its adhesiveness and pressurizes a laminate 5, and a lower belt 61 and an upper belt 62 that surface-contact the bottom face and top face of the laminate 5 and cools the laminate 5 while feeding it.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a laminator for laminating a laminate.

Conventionally, there has been a laminator for laminating a laminate of a laminate film and an object to be packaged (for example, Patent Document 1).
However, a conventional laminator pressurizes a laminate of a laminate film and an object to be packaged using a heated rubber roller, a rubber belt, or the like. For this reason, the surface of the soft rubber roller becomes softer. Therefore, the conventional laminator cannot laminate the surface of the laminate sufficiently flat.

JP 2005-343133 A

  The subject of this invention is providing the laminator which can laminate the surface of a laminated body flat enough.

  The present invention solves the problems by the following means. In addition, in order to make an understanding easy, although the code | symbol corresponding to embodiment of this invention is attached | subjected and demonstrated, it is not limited to this. In addition, the configuration described with reference numerals may be improved as appropriate, or at least a part thereof may be replaced with another configuration.

-1st invention is the laminated body by which the laminate film (7a, 7b) laminated | stacked on the 2nd surface side which is a surface different from the 1st surface side and 1st surface of a sheet | seat material (6), respectively was laminated | stacked. A laminator for laminating the laminate while feeding (5), the heating unit (40) for heating the laminate and developing the adhesiveness of the laminate film, and the adhesiveness of the laminate film being expressed And a pressure roller part (40) that pressurizes the laminated body and adheres the sheet material and the laminate film, and is arranged on the rear side in the feeding direction with respect to the pressure roller part, and the first surface side and the first side of the laminated body A laminator comprising a first belt (61) and a second belt (62) which are in surface contact with the two surfaces and cool while feeding the laminate.
-2nd invention WHEREIN: In the laminator of 1st invention, tension | tensile_strength is put on the said laminated body by pulling the said laminated body (5) of the state which has passed the said pressure roller part (40) in the feed direction. A laminator comprising a pulling roller portion (50) to be applied.
The third invention is characterized in that, in the laminator of the second invention, the roller (61a) around which the first belt (61) is wound also serves as the pulling roller portion (51). It is a laminator.
The fourth invention is the laminator according to any one of the first to third inventions, wherein the pressure roller part (40) includes a heat roller (41, 42) and also serves as the heating part. It is a characteristic laminator.
The fifth invention is the laminator of any one of the first to fourth inventions, wherein the roller (62a) for feeding the second belt (62) presses the first belt (61), thereby A laminator characterized by suppressing slackness of the first belt.
The sixth invention is a laminator according to any one of the first to fifth inventions, wherein the first belt (61) and the second belt (62) are seamless belts. is there.
The seventh invention is a laminator according to any one of the first to sixth inventions, which is disposed on the front side in the feeding direction with respect to the heating unit, and is opposed to the first surface and the second surface of the laminate (5), respectively. The laminator includes a preheating unit (32) having a surface disposed and heating the first surface and the second surface of the laminate.

  ADVANTAGE OF THE INVENTION According to this invention, the laminator which can laminate the surface of a laminated body fully flat can be provided.

It is a figure showing typically laminator 1 of an embodiment. It is sectional drawing of the laminated body 5 of embodiment. It is a figure explaining the state which opened upper case 12 of an embodiment.

(Embodiment)
Embodiments of the present invention will be described below with reference to the drawings.
Drawing 1 is a figure showing typically laminator 1 of an embodiment.
Drawing 2 is a sectional view of layered product 5 of an embodiment.
In the embodiment and drawings, an XYZ orthogonal coordinate system is provided for ease of explanation and understanding. This coordinate system represents the feed direction X (front side X1, rear side X2), depth direction Y, and vertical direction Z (lower side Z1, upper side Z2) on the basis of the state of FIG. The feeding direction X is a direction in which the stacked body 5 is fed. The axes of the feed direction X and the depth direction Y are horizontal. The axis in the depth direction Y is orthogonal to the paper surface of FIG. 1 and is parallel to the rotation axis of each roller.

As shown in FIG. 1, the laminator 1 is an apparatus that laminates a laminate 5 having, for example, A3 and A4 sizes while feeding it in the feed direction X. Laminator 1 is a desktop machine.
The laminator 1 conveys the sheet-like laminated body 5 in a state where the front and back surfaces of the laminated body 5 face the vertical direction Z or substantially the vertical direction Z. A portion of the inside of the laminator 1 where the stacked body 5 is transported is also referred to as a transport path.

As shown in FIG. 2, the laminated body 5 is obtained by laminating laminate films 7 a and 7 b on the lower surface (first surface) side and upper surface (second surface different from the first surface) of the sheet material 6. is there. In FIG. 1, the laminate 5 is simply illustrated by a thick line.
The sheet material 6 is, for example, a printed paper material.
The two laminate films 7a and 7b are similar members. Laminate films 7a and 7b are films in which a thermoplastic adhesive is applied to one surface of a transparent film. The laminate films 7 a and 7 b are slightly larger than the outer shape of the sheet material 6. In the example of FIG. 2, the two laminated films 7 a and 7 b are bonded in advance to the portion on the rear side X <b> 2 so that the sheet material 6 can be easily sandwiched.
By laminating the laminate 5, the laminate films 7 a and 7 b adhere to the upper and lower surfaces of the sheet material 6, and the range of the laminate films 7 a and 7 b that is slightly larger than the outer shape of the sheet material 6 is directly Stick.

[Structure of laminator 1]
As shown in FIG. 1, the laminator 1 includes a case 10, a guide roller unit 20, a preheating unit 30, a heating and pressing roller unit 40 (heating unit and pressing roller unit), a pulling roller unit 50, a lower belt 61 (first belt). 1 belt), an upper belt 62 (second belt), cooling fans 71 and 72 (cooling unit), and a driving unit 80.
In the feed direction X, the guide roller unit 20, the preheating unit 30, the heating and pressing roller unit 40, and the pulling roller unit 50 are arranged in this order from the front side X1 to the rear side X2. Further, the lower belt 61 and the upper belt 62 are disposed on the rear side X <b> 2 with respect to the heating and pressing roller unit 40. The upper belt 62 is disposed so as to be shifted to the rear side X2 with respect to the lower belt 61.

The case 10 includes a lower case 11 and an upper case 12.
The upper case 12 is rotatably connected to the lower case 11 by a hinge 13.
The case 10 includes an insertion port 15 into which the laminate 5 before laminating is inserted and an outlet 16 from which the laminate 5 after laminating is discharged.
The guide roller unit 20 is a device that guides the stacked body 5 inserted into the insertion port 15 to the preheating unit 30. The guide roller unit 20 feeds the laminate 5 with the laminate 5 sandwiched between the lower roller 21 and the upper roller 22.

The preheating unit 30 is disposed on the front side X1 with respect to the heating and pressing roller unit 40. The preheating unit 30 is a device that heats the laminated body 5 before being heated by the heating and pressing roller unit 40 to some extent.
The preheating unit 30 includes a lower preheating unit 31 and an upper preheating unit 32.

The lower preheating unit 31 is disposed on the lower side Z1 with respect to the conveyance path. The lower preheating unit 31 heats the stacked body 5 from the lower surface of the stacked body 5.
The cross-sectional shape of the lower preheating unit 31 is substantially rectangular and elongated in the feed direction X.
The upper surface of the lower preheating unit 31 is a surface parallel to the feed direction X and the depth direction Y. The upper surface of the lower preheating unit 31 is disposed to face the lower surface (first surface) of the stacked body 5.
The upper preheating unit 32 is disposed on the upper side Z2 from the transport path.
In the cross-sectional shape, the upper preheating unit 32 is symmetrical to the lower preheating unit 31 with the conveyance path as the axis of symmetry. For this reason, the lower surface of the upper preheating unit 32 is disposed to face the upper surface (second surface) of the stacked body 5.
As described above, the upper surface of the lower preheating unit 31 and the lower surface of the upper preheating unit 32 are arranged to face each surface of the stacked body 5, so that the stacked body 5 can be preheated with sufficient time. it can.

The heating and pressing roller unit 40 is a device that develops the adhesiveness of the laminate films 7a and 7b by heating the sandwich 5 while sandwiching and feeding the laminate 5 between the lower roller 41 and the upper roller 42. The upper roller 42 is urged toward the lower roller 41 arranged on the lower side Z1 by a spring.
The lower roller 41 and the upper roller 42 are heat rollers. Each of the rollers 41 and 42 may have a heat pipe with good heat transfer efficiency and uniform temperature distribution of the rollers 41 and 42.

The pulling roller unit 50 is a device that applies tension to the stacked body 5 by pulling the stacked body 5 that is passing through the heating and pressing roller section 40 in the feed direction X. As will be described later, this tension is applied because the peripheral speeds of the rollers 41 and 42 of the heating and pressure roller section 40 are different from the peripheral speeds of the lower roller 51 and the upper roller 52.
The pulling roller unit 50 sends the laminate 5 in a state where the laminate 5 is sandwiched between the lower roller 51 and the upper roller 52. The upper roller 52 is urged toward the lower roller 51 disposed on the lower side Z1 by a spring.

The lower belt 61 and the upper belt 62 are provided on the lower side Z <b> 1 and the upper side Z <b> 2, respectively, with respect to the conveyance path of the stacked body 5. The lower belt 61 and the upper belt 62 are the same parts, that is, common parts.
In the depth direction Y, the belts 61 and 62 are larger than the stacked body 5. Therefore, the lower surface and the upper surface of the laminated body 5 are brought into surface contact with the outer peripheral surface of the lower belt 61 and the outer peripheral surface of the upper belt 62 and are conveyed in a sandwiched state.
The belts 61 and 62 are, for example, seamless belts made of metal such as stainless steel. The outer peripheral surfaces of the belts 61 and 62 have flatness like a mirror surface.

The lower belt 61 is wound around two belt rollers 61a and 61b.
The belt roller 61a on the front side X1 also serves as the lower roller 51 of the pulling roller unit 50.
The upper belt 62 is wound around three belt rollers 62a, 62b, and 62c.
The belt roller 62a on the front side X1 suppresses the slack of the lower belt 61 by pressing the lower belt 61 (see arrow A62a).
Thereby, the laminator 1 can realize the suppression of the slackness of the lower belt 61 with a simple configuration without providing the lower belt 61 with a member such as a spring.
The central belt roller 62c is biased to the upper side Z2 by a spring. Thereby, the belt roller 62c can push up the range of the upper side Z2 in the orbit of the upper belt 62, and can suppress the slackness of the upper belt 62.

The cooling fans 71 and 72 are fans for cooling the lower belt 61 and the upper belt 62, respectively. As will be described later, the belts 61 and 62 are heated by cooling the laminated body 5. The cooling fans 71 and 72 cool the belts 61 and 62 that have reached a high temperature on the orbits of the belts 61 and 62.
In addition, the structure which cools the belts 61 and 62 is not limited to a fan, For example, the thing provided with the water-cooling type cooling device, the heat pipe, etc. may be used.

  With the above configuration, the heating and pressing roller unit 40 serves as both a device for heating the stacked body 5 and a device for pressing the stacked body 5. In addition, the roller 61 a around which the lower belt 61 is wound also serves as the lower roller 51 of the pulling roller unit 50. For this reason, the laminator 1 is low-cost, can be reduced in size, and can simplify a structure. Furthermore, since the lower belt 61 and the upper belt 62 are the same parts, the cost is low and parts management is easy.

The drive unit 80 is a device that rotationally drives each roller.
The drive unit 80 includes a motor 81 and chains 82, 83, and 84.
The motor 81 is a brushless motor or the like.
The chain 82 is wound around a sprocket provided on the rotating shaft of the motor 81, a sprocket provided on the lower roller 41, and a sprocket provided on the lower roller 51.
The chain 83 is wound around a sprocket provided on the upper roller 42 and a sprocket provided on the upper roller 52.
The chain 84 is wound around a sprocket provided on the upper roller 52 and a sprocket provided on the roller 62a.

The operation of the drive unit 80 will be described.
As the rotating shaft of the motor 81 rotates, the chain 82 rotates. Thereby, the lower roller 41 and the lower roller 51 (roller 61a) rotate.
Since the upper roller 42 is pressed against the lower roller 41 by a spring, it rotates as the lower roller 41 rotates.
Similarly, since the upper roller 52 is pressed against the lower roller 51 by a spring, it rotates as the lower roller 51 rotates.

As the lower roller 51 (roller 61a) rotates, the lower belt 61 rotates.
As the upper roller 52 rotates, the chain 82 rotates. Thereby, since the roller 62a rotates, the upper belt 62 rotates.
As described above, the driving force of the motor 81 is transmitted to each roller and each belt, and these are driven.

The diameter of the sprocket is set so that the peripheral speeds of the rollers 51 and 52 of the pulling roller section 50 are faster than the peripheral speeds of the rollers 41 and 42 of the heating and pressing roller section 40. Similarly, the diameter of the sprocket is set so that the peripheral speed of the belts 61 and 62 is faster than the peripheral speed of the rollers 51 and 52 of the pulling roller unit 50. For this reason, the laminated body 5 is restrained from slacking in the state of being sent.
The rollers 21 and 22 of the guide roller unit 20 may receive the driving force of the motor 81 or may be provided with independent motors.

[Lamination]
The laminating operation by the laminator 1 will be described.
Lamination is performed according to the following steps.
(1) When the operator inserts the laminate 5 in the state of FIG. 2 before processing through the insertion port 15, the guide roller unit 20 guides the laminate 5 to the preheating unit 30. The insertion port 15 may be provided with a detection unit such as an optical sensor or a detection switch, and the guide roller unit 20 may be rotationally driven based on the output.

(2) Preheating Step Subsequently, the stacked body 5 is conveyed to the preheating unit 30.
In the preheating step, when the laminate 5 passes through the preheating unit 30, the adhesiveness of the laminate films 7a and 7b is developed to some extent.
(3) Heating Step, Pressing Step Subsequently, the laminate 5 is conveyed to the heating and pressing roller unit 40.
In the heating process, when the lower roller 41 and the upper roller 42 are in contact with the laminated body 5, the adhesiveness of the laminate films 7a and 7b is sufficiently developed.
In the pressurizing step, the lower roller 41 and the upper roller 42 pressurize the laminate 5 in a state where the adhesiveness of the laminate films 7a and 7b is expressed, and adhere the sheet material 6 and the laminate films 7a and 7b, Further, the periphery of the laminate films 7a and 7b is adhered.

(4) Pulling Step Subsequently, the stacked body 5 is conveyed to the pulling roller unit 50.
As described above, the peripheral speeds of the rollers 51 and 52 of the pulling roller unit 50 are faster than the peripheral speeds of the rollers 41 and 42 of the heating and pressing roller unit 40. For this reason, since the tension | tensile_strength which the tension | pulling body 5 is pulled is applied between the heating-and-pressing roller part 40 and the tension | pulling roller part 50, slack etc. are suppressed. Thereby, generation | occurrence | production of wrinkles etc. of laminate film 7a, 7b can be suppressed in the said pressurization process.

(5) Surface contact process, belt conveyance process Subsequently, the laminated body 5 is conveyed to the arrangement part of the lower belt 61 and the upper belt 62.
The laminated body 5 reaches the range 63 on the front side X1 in the conveyance path by the lower belt 61 and the upper belt 62 within a short time after the heating step. For this reason, the laminated body 5 passes through this range 63 in a high temperature state.

Therefore, the laminated body 5 is in surface contact with the outer peripheral surfaces of the lower belt 61 and the upper belt 62 in a range 63 in a high temperature state.
Thereby, the upper surface and the lower surface of the laminate 5 (that is, the lower surface of the laminate film 7a and the upper surface of the laminate film 7b) are formed flat.
Further, as described above, since the belts 61 and 62 are metal belts, the belts 61 and 62 have a sufficient rigidity as compared with a rubber belt or the like, and are in a tight state. Furthermore, the surface of the metal belt is harder than the surface of a rubber belt or the like.
Thereby, the upper surface and lower surface of the laminated body 5 are shape | molded more flatly.

  Furthermore, since the laminated body 5 is in surface contact with the belts 61 and 62, it is gradually cooled. For this reason, the laminate 5 can suppress deformation such as warpage. Unlike the embodiment, when the laminate 5 is discharged from the discharge port 16 in a high temperature state, the laminate 5 is easily deformed by an external force or the like. Moreover, since the laminated body 5 is cooled in a state of surface contact with the belts 61 and 62, generation of wrinkles due to heat shrinkage can be suppressed.

As described above, the laminator 1 is formed by cooling the laminated body 5 at a high temperature by bringing the laminated body 5 into contact with the lower belt 61 and the upper belt 62 in the surface contact process and the belt conveying process. Can be transported.
The laminator 1 completely separates the configuration for cooling the laminated body 5 (belts 61, 62, etc.) from the configuration for heating the laminated body 5 (lower roller 41, upper roller 42, etc.). For this reason, the laminator 1 can shorten the magnitude | size in the feed direction X, for example compared with the apparatus which performs both heating and cooling with a belt. Thereby, the laminator 1 can be reduced in size and can be placed on a desktop or the like in a space-saving manner. And since the laminator 1 can cool the laminated body 5 in a short time, the feed rate of the laminated body 5 can be improved.
Thereafter, the stacked body 5 is discharged from the discharge port 16 to the outside of the laminator 1.

[Opening and closing upper case 12]
FIG. 3 is a diagram illustrating a state where the upper case 12 is opened.
Members such as the lower rollers 21, 41, 51, the belt rollers 61 a, 61 b, the cooling fan 71 and the like are attached to the upper case 12. On the other hand, members such as the respective upper rollers 22, 42, 52, belt rollers 62 a, 62 b, 62 c, and cooling fan 72 are attached to the upper case 12. Further, the member attached to the upper case 12 and the member attached to the lower case 11 are not directly connected by a chain or the like.
For this reason, the upper case 12 can be opened and closed without being caught with respect to the lower case 11 by rotating around the hinge 13.
Thus, the laminator 1 can be easily maintained. Further, when the upper case 12 is opened, the outer peripheral surfaces of the belts 61 and 62 are greatly exposed. For this reason, the laminator 1 can easily check the belts 61 and 62 and replace the belts 61 and 62.

  As described above, the laminator 1 can laminate the upper surface and the lower surface of the laminate 5 flatly by forming the heated laminate 5 and the belts 61 and 62 while being in surface contact with each other.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to embodiment mentioned above, For example, various deformation | transformation and a change are possible like the deformation | transformation form etc. which are mentioned later, These are also It is within the technical scope of the present invention. In addition, the effects described in the embodiments are merely a list of the most preferable effects resulting from the present invention, and the effects of the present invention are not limited to those described in the embodiments. It should be noted that the above-described embodiment and modifications described later can be used in appropriate combination, but detailed description thereof is omitted.

(Deformation)
(1) In the embodiment, the laminator has shown an example of processing a sheet-like laminated body, but is not limited thereto. The laminator may be in the form of a laminate obtained by laminating a laminate film continuously fed from a roll and a sheet material. In this embodiment, the laminator may be provided with a cutting device that cuts a continuously processed laminated body into pieces.

(2) In the embodiment, an example in which the belt is a metal belt has been described, but the belt is not limited thereto. The belt may be a resin (for example, polyimide, PET) belt, a rubber belt, or the like.

(3) In the embodiment, the upper roller (upper rollers 42, 52, etc.) is pressed against the lower roller (lower rollers 41, 51, etc.) and rotates with the rotation of the lower roller, but the present invention is not limited to this. . You may rotate these by connecting between an upper roller and a lower roller with a gearwheel, a chain, etc., for example. In this case, the upper roller and the lower roller can be stably rotated so that their peripheral speeds coincide.

DESCRIPTION OF SYMBOLS 1 Laminator 5 Laminated body 6 Sheet material 7a, 7b Laminated film 30 Preheating part 31 Lower preheating part 32 Upper preheating part 40 Heating pressure roller part 50 Pulling roller part 61 Lower belt 62 Upper belt 71, 72 Cooling fan

Claims (7)

A laminator for laminating the laminate while feeding a laminate in which laminate films to be laminated are respectively laminated on a first surface side and a second surface side different from the first surface of the sheet material ,
A heating unit for heating the laminate and expressing the adhesiveness of the laminate film;
A pressure roller portion that pressurizes the laminate in a state where the adhesiveness of the laminate film is expressed, and adheres the sheet material and the laminate film;
A first belt and a second belt that are disposed on the rear side in the feeding direction with respect to the pressure roller portion, are in surface contact with the first surface side and the second surface side of the laminated body, and are cooled while feeding the laminated body. Preparing,
Laminator characterized by. The laminator according to claim 1, wherein
A tension roller portion that applies tension to the laminate by pulling the laminate in a feeding direction while passing through the pressure roller portion;
Laminator characterized by. The laminator according to claim 2,
The roller around which the first belt is wound also serves as the pulling roller portion;
Laminator characterized by. The laminator according to any one of claims 1 to 3,
The pressure roller unit includes a heat roller, and also serves as the heating unit;
Laminator characterized by. The laminator according to any one of claims 1 to 4,
The roller for feeding the second belt suppresses the slackness of the first belt by pressing the first belt;
Laminator characterized by. The laminator according to any one of claims 1 to 5,
The first belt and the second belt are seamless belts;
Laminator characterized by. The laminator according to any one of claims 1 to 6,
Preliminary heating for heating the first surface and the second surface of the laminated body, having a surface disposed on the front side in the feeding direction from the heating unit and having a surface opposed to the first surface and the second surface of the laminated body, respectively. Providing a part,
Laminator characterized by.

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