KR101865018B1 - Manufaturing apparatus for multi layer tray and the same thereby - Google Patents

Manufaturing apparatus for multi layer tray and the same thereby Download PDF

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Publication number
KR101865018B1
KR101865018B1 KR1020180005952A KR20180005952A KR101865018B1 KR 101865018 B1 KR101865018 B1 KR 101865018B1 KR 1020180005952 A KR1020180005952 A KR 1020180005952A KR 20180005952 A KR20180005952 A KR 20180005952A KR 101865018 B1 KR101865018 B1 KR 101865018B1
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KR
South Korea
Prior art keywords
heating
tray
mold
unit
section
Prior art date
Application number
KR1020180005952A
Other languages
Korean (ko)
Inventor
한은순
김미숙
Original Assignee
한은순
김미숙
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Priority to KR1020180005952A priority Critical patent/KR101865018B1/en
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Publication of KR101865018B1 publication Critical patent/KR101865018B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/10—Forming by pressure difference, e.g. vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/14—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor using multilayered preforms or sheets
    • B29C51/145—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor using multilayered preforms or sheets having at least one layer of textile or fibrous material combined with at least one plastics layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/261—Handling means, e.g. transfer means, feeding means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/30—Moulds
    • B29C51/36—Moulds specially adapted for vacuum forming, Manufacture thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/42—Heating or cooling
    • B29C51/421—Heating or cooling of preforms, specially adapted for thermoforming
    • B29C51/422—Heating or cooling of preforms, specially adapted for thermoforming to produce a temperature differential

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Textile Engineering (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

The present invention relates to an apparatus for producing a tray of a multi-layer structure and a multi-layer structure tray manufactured thereby, which apparatus comprises a first member and a second member forming a layer structure, A fabric supply unit for independently providing the first member and the second member; A heating section having a heating section upper plate and a heating section lower plate and a transfer path through which the first member is transferred is formed between the heating section upper plate and the heating section lower plate; And a second conveying path through which the second member is conveyed to the upper part of the upper part of the heating part or the lower part of the lower part of the heating part, An indirect heating zone for heating the two members; A mold part forming a shape of the tray in a state where a first member passed through the heating part and a second member passing through the indirect heating space part are overlapped with each other; A cutting section for cutting the first member and the second member adhered via the mold section according to the standard of the tray; And withdrawing the tray including the cut first and second members.

Description

[0001] The present invention relates to a multi-layer tray manufacturing apparatus and a multi-

The present invention relates to an apparatus for manufacturing a multi-layered tray and a multi-layered structure tray manufactured thereby, and more particularly, to an apparatus for manufacturing a multi-layered tray that can be used for wheel transport or the like.

The vehicle includes a pressing step of processing an iron plate, a car body assembling step of completing a car body constituting a skeleton of the vehicle through welding to a plurality of machined steel plates, a painting step of performing painting work on the exterior of the finished car body, Parts assembling process for assembling parts, and inspection process for ultimately inspecting assembled vehicles. The parts assembly process is carried out in the order of basic wiring, interior materials process, glass, suspension, steering, braking device, engine / transmission, exhaust, tire, seat and steering wheel. This process can be said to be the final stage of the car assembly process.

Among these component assembling processes, a wheel supply system is provided as a constitution of a transportation facility for supplying an aluminum wheel of an automobile to a production line. The conventional wheel supply system is composed of a conveying conveyor apparatus in which a plurality of conveyor rollers are usually installed. In the vicinity of the conveying conveyor apparatus, a plurality of wheels are provided on the pallet.

In this case, the operator places the wheels on the conveyor roller of the conveying device manually by lifting the corresponding wheel directly by each size, and when the wheels are mounted, the conveying conveyor device is moved to the corresponding production line Wheels.

A T ring (referred to as Prior Art 1) or Korean Patent No. 10-1452685 "Vehicle Wheel Transport Tray" (hereinafter referred to as Prior Art 2) may be used as means for transporting such wheels.

In the prior art 1, the ring member is formed into a T-shaped cross section and is used merely for vertically stacking the wheels. However, in the case of such a T-ring, it is difficult for a plurality of wheels to maintain a stable laminated structure, and it is difficult to recover such a wheel as disposable after discarding after use.

In the case of Prior Art 2, there is an advantage in that resources can be recycled because it is easy to recover while maintaining a stable laminated structure.

However, the wheel tray according to the prior art 2 has a problem that the manufacturing cost is much higher than that of the T-ring of the prior art 1. [ Therefore, it is necessary to develop a technology that can recycle resources and reduce manufacturing cost by easy recovery.

The present invention provides a multi-layer tray manufacturing apparatus which is applicable to a plurality of wheels or other similar products, and which has a structure capable of maintaining a stable lamination structure and preventing scratches on products.

The present invention also provides an apparatus for manufacturing an environmentally friendly multi-layered structure tray, which is economical in that a multi-layered structure is formed while lowering the manufacturing cost and enabling recycling.

An apparatus for producing a tray in which a first member and a second member form a layer structure, the apparatus for manufacturing a multi-layer structure according to the present invention comprises: a raw material supply unit independently providing the first member and the second member; A heating section having a heating section upper plate and a heating section lower plate and a transfer path through which the first member is transferred is formed between the heating section upper plate and the heating section lower plate; And a second conveying path through which the second member is conveyed to the upper part of the upper part of the heating part or the lower part of the lower part of the heating part, An indirect heating zone for heating the two members; A mold part forming a shape of the tray in a state where a first member passed through the heating part and a second member passing through the indirect heating space part are overlapped with each other; A cutting section for cutting the first member and the second member adhered via the mold section according to the standard of the tray; And withdrawing the tray including the cut first and second members.

In addition, the first member may be formed of a synthetic resin material having elasticity.

Further, the second member may be formed of any one material selected from cloth, sponge, nonwoven fabric and soil theory.

Further, at least one of the heating section upper plate and the heating section lower plate among the heating sections can partially and evenly heat the first member.

Further, the lower heating plate may be controlled to uniformly heat the first member as a whole, and to be heated to a lower temperature toward the outer periphery of the lower heating plate.

Further, the heating section upper plate may partially heat the temperature at the point where the first member and the second member are bonded to rise above the melting point of the first member.

The first member may be formed of polypropylene, the second member may be formed of a soil material, and the upper portion of the heating portion may have a temperature of 340 degrees Celsius or more at which the first member and the second member are bonded So that it can be heated up.

Also, the heat, which is provided between the heating part and the metal mold part and flows out from the heating part, can be prevented from being transmitted to the metal mold side.

In addition, a plurality of rollers may be provided in the indirectly heated space so that the second member can be transported.

Also, at least one of the upper part of the heating part and the lower part of the heating part is provided with a plurality of unit heating cells arranged longitudinally and laterally on the heating surface, and the heating temperatures of the unit heating cells can be controlled individually or in a certain number of groups .

The mold part is of a pressure vacuum forming type, and the mold part has a lower mold formed corresponding to the shape of the first member and a pressing part protruding to a position corresponding to an adhesion area of the first member and the second member And a plug in which a surface is formed.

On the other hand, a multi-layer structure tray manufactured by the above-described multi-layer structure tray manufacturing apparatus includes a first member formed of a synthetic resin material and maintaining a shape processed by a mold; And a second member formed of at least one of a cloth, a sponge, a nonwoven fabric, and a satin, and partially attached to the first member.

According to the present invention, it is possible to provide a multi-layer structure tray which can be applied to a plurality of wheels or other similar products, thereby providing a stable laminated structure, which is provided between products forming a laminated structure, Thereby preventing scratches on the products.

Further, according to the present invention, since the cloth, the toe, and the like are partially attached to the synthetic resin tray to form a multi-layer structure, the manufacturing cost can be lowered and recycled, thereby providing economical advantages and being environmentally friendly.

1 and 2 are an exploded perspective view and a perspective view, respectively, of a multi-layer structure tray manufacturing apparatus according to an embodiment of the present invention.
3 is a schematic view showing an appearance of a multi-layer structure tray manufacturing apparatus according to an embodiment.
4 and 5 are enlarged views each showing a perspective view and a partial enlarged view showing a heating unit according to an embodiment, respectively.
FIG. 6 and FIG. 7 are photographs showing control panel panels for controlling the temperature of the lower heating plate and the upper heating plate according to the embodiment, respectively.
8 is a schematic diagram illustrating an adhesive region according to one embodiment.
9 is a perspective view illustrating a lower mold and a plug for a vacuum press process according to an embodiment.
10 is a perspective view showing a bottom view of the plug of Fig.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the absence of special definitions or references, the terms used in this description are based on the conditions indicated in the drawings. The same reference numerals denote the same members throughout the embodiments. For the sake of convenience, the thicknesses and dimensions of the structures shown in the drawings may be exaggerated, and they do not mean that the dimensions and the proportions of the structures should be actually set.

1 and 2, a description will be given of a multi-layer structure tray according to an embodiment of the present invention. 1 and 2 are an exploded perspective view and a perspective view, respectively, of a multi-layer structure tray manufacturing apparatus according to an embodiment of the present invention.

First, as shown in FIG. 1, a multi-layer structure tray 100 according to an embodiment of the present invention includes a first member 110 and a second member 120.

The first member 110 is formed of a synthetic resin material and is configured to maintain its shape in a state in which an outer shape is formed by a metal mold to be described later. For example, the first member 110 may be formed so as to correspond to the shape of one surface of the wheel so that the first member 110 can be inserted into each of the interfaces at which the wheels are stacked to maintain the laminated structure.

The second member 120 may be formed of a material such as a cloth, a sponge, a nonwoven fabric, and a satin or the like. The second member 120 may be attached to the first member 110 to prevent scratches do. The second member 120 does not have a separate shape but forms one layer attached to the first member 110 as shown in FIG. 2, and is in conformity with the shape of the first member 110 .

At this time, the second member 120 is not attached to the first member 110 evenly over the entire area, but a plurality of attachment regions with respect to the first member 110 in a point shape should be formed and partially attached.

When the second member 120 and the first member 110 are entirely attached, the second member 120 may not be easily broken or separated in the process of separating the first member 110 and the second member 120 The problem of recycling of the multi-layer structure tray is difficult to be solved, and even when disposal is carried out, it is not easy to separate and collect, which causes environmental problems.

The second member 120 may be attached to the first member 110 in addition to the first member 110, and the second member 120 may be attached to both sides of the first member 110 Do.

3 to 7, a multi-layer structure tray manufacturing apparatus according to an embodiment will be described. FIG. 3 is a schematic view showing a structure of a multi-layer structure tray manufacturing apparatus according to an embodiment, FIGS. 4 and 5 are enlarged views each showing a perspective view and a part of a heating section according to an embodiment, FIG. 7 is a photograph showing a control panel showing control of the temperature of the lower heating plate and the upper heating plate according to the embodiment.

The apparatus for manufacturing a multi-layer structure tray according to the present invention includes a raw material supply unit 205, a heating unit 210, an indirect heating unit 220, a heat shield 300, a mold unit 400, a cut unit 500, ).

The far-end feeder 205 provides the first member 11 and the second member 12 independently to the heating unit 210 side. The first member 11 is supplied between the heating part lower plate 211 and the heating part upper plate 212 constituting the heating part 210 and the second member 12 is disposed between the heating part upper plate 212 and the heating part upper plate 212 And indirectly supplied to the hot hole 220.

The first member 11 may be formed of a synthetic resin material having elasticity. For example, the first member 11 may be formed of a polypropylene material.

The second member 12 may be formed of a material such as cloth, sponge, nonwoven fabric, The second member 12 is attached to the first member 11 and may be formed of any one of cloth, sponge, nonwoven fabric, and satin.

The heating unit 210 includes a heating part lower plate 211 and a heating part upper plate 212 and forms a path through which the first member 11 is conveyed between the heating part lower plate 211 and the heating part upper plate 212 A support portion 230 may be provided. At this time, the support portion 230 may be formed of a metal net structure.

The heating part lower plate 211 and the heating part upper plate 212 function to heat the first member 11 by being positioned below and above the first member 211, respectively. However, as described above, at least any one of the heating section upper plate 212 and the heating section lower plate 211 can partially and evenly heat the first member.

However, it is preferably formed as follows. First, the heating part upper plate 212 can heat the first member 11 to form and adjust the partial bonding force. The heating part lower plate 211 is used for the overall heating of the first member 11 Function.

4 and 5, the upper and lower plates of the heating unit 210 may be provided with a plurality of unit heating cells 2102 arranged longitudinally and laterally on the heating surface 2101. The unit heating cells 2102 can control the temperature individually or in units of a certain number of groups. For example, as shown in Fig. 6 (temperature control state of the lower heating plate) and Fig. 7 (temperature control state of the upper heating plate), in the case of the heating lower plate 211, simply heating the first member 11 as a whole Heating is performed by decomposing the inside and outside temperatures to form a lower outside temperature. When the outside temperature is set to be equal to the inside temperature, heat may be accumulated on the inside, and the temperature may be heated higher than the intended temperature.

In the case of the heating section top plate 212, partial heating is performed so that the temperature can be partially raised in order to partially form the bonding section on the first member 11. It is also possible to maintain the temperature uniformly at each of these points. It is possible to control so that a certain point is further heated in accordance with the moving speed of the first member 11. [

Further, it is preferable to control heating so as to start heating slowly at the entry side (right side in the figure) of the upper part of the heating part 212 and to be heated at a relatively high temperature so as to be fully heated from the outgoing side Do. However, the temperature at the point where the first member 11 and the second member 12 are bonded to each other through the entirety of the heating section upper plate 212 is partially heated to rise above the melting point of the first member 11.

The indirectly heated hole portion 220 forms a second conveyance path through which the second member 12 is conveyed. The indirectly heated space 220 can be defined as a space portion located on the upper part of the heating part upper plate 212 or the lower part of the heating part lower plate 211. The second member 12 indirectly uses the heat radiated from the heating section upper plate 212 or the heating section lower plate 211 while passing through the indirect heating section 220 and performs the drying operation by this indirect heat . The second member 12, which is stored for a long time or stored in a warehouse or the like, contains a large amount of moisture, which may deteriorate the adhesive performance at the time of adhesion.

The manufacturing apparatus according to the present embodiment performs the drying operation simultaneously by indirectly using the heat of the heating unit 210 without performing the drying operation separately. The indirectly heated space 220 may further include components such as a rail 225 for transporting the second member 12.

On the other hand, the first member 11 and the second member 12 start to adhere to each other at a temperature of 320 ° C. when the first member is polypropylene (PP) The member 11 and the second member 12 are strongly bonded. However, when the first member 11 is heated to 400 ° C or more, there is a problem that the first member 11 melts excessively or burns the first member 11. If the temperature is increased unnecessarily, It is preferable that the temperature is in the range of 340 to 380 degrees centigrade.

When the second member is entirely attached to the first member, the control unit (not shown) makes it difficult to recycle itself. Thus, the first member 11 and the second member 12 ) Is a partial attachment.

The heat insulating film 300 is provided between the heating unit 210 and the mold unit 400 or the turntable 450 to prevent the heat generated from the heating unit from being transmitted to the mold 450 and the mold unit 400 .

The mold part 400 is heated and pressed so that the shape of the tray can be formed in a state where the first member 11 having passed through the heating part 210 and the second member 12 having passed through the indirectly heated hole part 220 are overlapped. , Heat adsorption, and the like.

The protrusion 450 mounts or supports the mold part 400 to perform a work using the mold part 400.

The cutting unit 500 cuts the first member 11 and the second member 12 adhered via the mold unit 400 according to the standard of a tray to be manufactured, The tray including the first member 11 and the second member 12 is collected.

A mold according to an embodiment will be described with reference to Figs. 8 to 10. Fig. 9 is a perspective view showing a bottom mold and a plug for a vacuum press process according to an embodiment, and Fig. 10 is a perspective view showing a bottom view of the plug of Fig. 9 FIG.

For example, when the adhesive region r1 is formed on a part of the tray 100 as shown in FIG. 8, the lower mold and the plug may be formed as shown in FIGS.

Specifically, the lower mold 310 can use the lower mold according to the conventional vacuum vacuum forming method as it is. However, the upper mold is not used for general vacuum vacuum forming method.

In this embodiment, a plug 320 is introduced in order to more efficiently form an adhesive region in such a vacuum vacuum forming method. The plug 320 has a plug 320 protruding to press the corresponding region r2 of the lower mold 310 to form an adhesive region. As shown in FIG. 10, at least one protrusion 325 may be provided on the bottom surface of the plug 320. The projection 325 is formed in a protruded shape so as to form a pressing surface r3 having a shape corresponding to the adhesion area of the tray.

The adhesive region and the pressing surface r3 may be formed as a continuous circle as shown in Fig. 10, or may be formed as a discontinuous circle. The adhesive region and the pressing surface r3 may be formed in various other shapes. That is, they may be formed into a point shape or a polygonal shape.

The pressing surface r3 may be formed at various positions to contribute to formation of the adhesive region.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. have.

205:
210:
220: Indirect tier official
300:
400: mold part
500: Cutting section
600: Rejection

Claims (12)

An apparatus for producing a tray in which a first member and a second member form a layer structure,
A fabric feeder for independently providing the first member and the second member;
A heating part upper plate and a heating part lower plate, and a transfer path through which the first member is transferred between the upper part of the heating part and the lower part of the heating part, wherein the upper part of the heating part and the lower part of the heating part have a plurality A heating unit provided with heating cells of the heating unit;
An indirect tapped hole portion which is provided as a second conveyance path through which the second member is conveyed to the upper portion of the heating portion upper plate and which heats the second member by a thermal phenomenon caused by the heating portion upper plate or the lower heating portion;
A mold part forming a shape of the tray in a state where a first member passed through the heating part and a second member passing through the indirect heating space part are overlapped with each other;
A cutting section for cutting the first member and the second member adhered via the mold section according to the standard of the tray; And
And removing the tray including the cut first member and the second member. The method according to claim 1,
Wherein the first member is made of a synthetic resin material having elasticity. The method according to claim 1,
Wherein the second member is formed of a material selected from the group consisting of cloth, sponge, nonwoven fabric and soil. The method according to claim 1,
Wherein at least one of the heating section upper plate and the lower heating section of the heating section further partially heats the first member. 5. The method of claim 4,
Wherein the heating unit lower plate is controlled to heat the first member as a whole uniformly while being heated to a lower temperature toward the outer periphery of the heating unit lower plate. 5. The method of claim 4,
Wherein the heating section top plate partially heats the temperature at the point where the first member and the second member are to be adhered to rise above the melting point of the first member. 5. The method of claim 4,
Wherein the first member is formed of a polypropylene material and the upper plate of the heating unit is heated to raise the temperature at a point where the first member and the second member are to be adhered within a range of 340 degrees to 380 degrees centigrade Manufacturing apparatus. The method according to claim 1,
And a heat shield provided between the heating unit and the mold unit to prevent heat from the heating unit from being transmitted to the mold unit. The method according to claim 1,
And the plurality of rollers are provided in the indirectly heated space so that the second member can be transported. The method according to claim 1,
Wherein at least one of the upper part of the heating part and the lower part of the heating part is provided with a plurality of unit heating cells arranged longitudinally and laterally on the heating surface, Manufacturing apparatus. The method according to claim 1,
The mold part is of the vacuum vacuum forming type,
The mold unit includes:
A lower mold formed corresponding to the shape of the first member to be molded, and
And a plug having a pressing surface protruded at a position corresponding to an area of adhesion between the first member and the second member. delete
KR1020180005952A 2018-01-17 2018-01-17 Manufaturing apparatus for multi layer tray and the same thereby KR101865018B1 (en)

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Application Number Priority Date Filing Date Title
KR1020180005952A KR101865018B1 (en) 2018-01-17 2018-01-17 Manufaturing apparatus for multi layer tray and the same thereby

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KR101865018B1 true KR101865018B1 (en) 2018-06-05

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10128940A (en) * 1996-10-25 1998-05-19 Dainippon Printing Co Ltd Curved surface lamination method and curbed surface laminating device
JP2014124817A (en) * 2012-12-26 2014-07-07 Mg-Mold Co Ltd Manufacturing method and manufacturing system of hollow body consisting of multilayer sheets
KR101570836B1 (en) * 2014-08-07 2015-11-20 한양소재 주식회사 Improved Scratch Resistence Tray and Manufacturing Method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10128940A (en) * 1996-10-25 1998-05-19 Dainippon Printing Co Ltd Curved surface lamination method and curbed surface laminating device
JP2014124817A (en) * 2012-12-26 2014-07-07 Mg-Mold Co Ltd Manufacturing method and manufacturing system of hollow body consisting of multilayer sheets
KR101570836B1 (en) * 2014-08-07 2015-11-20 한양소재 주식회사 Improved Scratch Resistence Tray and Manufacturing Method

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