KR20080105615A - Lamination apparatus - Google Patents

Lamination apparatus Download PDF

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Publication number
KR20080105615A
KR20080105615A KR1020070053412A KR20070053412A KR20080105615A KR 20080105615 A KR20080105615 A KR 20080105615A KR 1020070053412 A KR1020070053412 A KR 1020070053412A KR 20070053412 A KR20070053412 A KR 20070053412A KR 20080105615 A KR20080105615 A KR 20080105615A
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KR
South Korea
Prior art keywords
roll
hot roll
lamination
work table
hot
Prior art date
Application number
KR1020070053412A
Other languages
Korean (ko)
Inventor
구본주
Original Assignee
삼성에스디아이 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 삼성에스디아이 주식회사 filed Critical 삼성에스디아이 주식회사
Priority to KR1020070053412A priority Critical patent/KR20080105615A/en
Publication of KR20080105615A publication Critical patent/KR20080105615A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/0046—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by constructional aspects of the apparatus
    • B32B37/0053—Constructional details of laminating machines comprising rollers; Constructional features of the rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
    • H01J9/241—Manufacture or joining of vessels, leading-in conductors or bases the vessel being for a flat panel display
    • H01J9/242—Spacers between faceplate and backplate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
    • B32B2457/204—Plasma displays

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Laminated Bodies (AREA)

Abstract

A lamination device is provided to mold the green sheet to the glass substrates with uniform pressure by additionally equipping the device for preventing the deformation of the hot roll at the lower part of both sides axis of the hot roll. A lamination device comprises the work table(14), the lamination hot roll(15), and at least three aided rolls(16). The lamination hot roll is positioned on the work table. The lamination hot roll laminates the green sheets(12) on the glass substrates(11) which is on the work table. The aided roll is arranged parallel with the direction which is in a line with the axis of the hot roll on the top of the hot roll. The aided roll provides the power pressurizing the hot roll to the work table.

Description

Lamination apparatus

1 is a view schematically showing a conventional lamination device.

2 is a view schematically showing a lamination device according to an embodiment of the present invention.

3 is a diagram schematically showing a lamination device according to another embodiment of the present invention.

4 is a diagram schematically showing a lamination device according to another embodiment of the present invention.

5 is a view schematically showing a lamination device according to another embodiment of the present invention.

6 is a diagram schematically showing a lamination device according to another embodiment of the present invention.

7 is a diagram schematically showing a lamination device according to another embodiment of the present invention.

8 is a diagram schematically showing a lamination device according to another embodiment of the present invention.

Brief description of symbols for the main parts of the drawings

11: glass substrate 12: green sheet

13: Shifter 14: Work Table

15, 25, 35, 45, 55, 65, 75: hot rolls 16, 36, 56, 76: auxiliary rolls

17, 37, 57, 77: Pressure cylinders 28, 38, 68, 78: Backup roll

49, 59, 69, 79: Hot roll strain relief

The present invention relates to a lamination apparatus, and more particularly, to a lamination apparatus capable of uniformly laminating a green sheet on a glass substrate of a plasma display panel.

As a method of manufacturing a partition in a plasma display panel (hereinafter PDP), there is a method of laminating a green sheet on a glass substrate. The process of forming a partition by laminating a green sheet on a glass substrate is briefly described. An adhesive layer is formed on the glass substrate, and the green sheet is laminated by a lamination apparatus on the adhesive layer. Thereafter, the address electrode is printed on the green sheet and dried. A dielectric slurry is printed on a substrate on which an address electrode is formed, dried, and heated to a predetermined temperature. After aligning and pressing a mold having a groove having a shape opposite to that of the partition wall, the green sheet and the dielectric layer move into the groove of the mold to rise to form a partition wall. In such a process, the process of uniformly laminating a green sheet on a glass substrate is one of very important processes.

As plasma display panels become larger and multifaceted technology is developed, lamination devices are also becoming larger. The larger the lamination apparatus, the more difficult it is to transmit uniform pressure to the entire area of the glass substrate, and the more difficult it is to laminate the sheet uniformly on the glass substrate.

1 is a view schematically showing a conventional lamination device. The lamination device shown in FIG. 1 has a work table 4, which can be moved by the moving device 3. On the work table 4, the glass substrate 1 and the green sheet 2 are arrange | positioned. A hot roll 5 is arranged above the work table 4.

In order to laminate-form the green sheet 2 on the glass substrate 1, the hot roll 5 heat-presses the green sheet 2 toward the work table 4. Then, when the moving device 3 moves the work table 4 slowly, the hot roll 5 laminates the entire area of the green sheet 2 on the glass substrate 1. However, since the force for pressing the hot roll 5 is applied to both shaft ends 5a of the hot roll 5, the hot roll 5 is convex upward, so that the hot roll 5 does not reach the center portion of the green sheet 2 so as to be uneven. The phenomenon of lamination occurs.

In order to improve this, there is a lamination device using an auxiliary roll coated with an elastomer. However, in this case, there is a problem that the auxiliary roll coated with the elastic body takes a few minutes or more to transmit pressure to the hot roll 5. In addition, the local pressure difference that may occur in addition to the pressure difference between the central portion and the end portion of the hot roll 5 may not be solved.

In addition, in the case of the lamination apparatus in which the backup roll is disposed on the hot roll 5 and the auxiliary roll coated with the elastic body is disposed on the upper part of the backup roll, the auxiliary roll when the auxiliary roll transfers pressure to the hot roll 5 through the backup roll. There is a problem that the pressure of may not be properly delivered to the hot roll (5). In addition, the pressure can be concentrated to one side according to the shape of the backup roll, there is a problem that the meaning of using the auxiliary roll is lost.

The present invention provides a lamination apparatus that applies uniform pressure to all regions of the green sheet.

The present invention is a work table; A lamination hot roll positioned on the work table and laminating a green sheet on a glass substrate on the work table; And three or more auxiliary rolls disposed on an upper side of the hot roll in a direction parallel to the axis of the hot roll and providing a force for pressing the hot roll toward the work table. By this, by controlling the pressure for each auxiliary roll to offset the pressure deviation for each longitudinal direction generated in the hot roll it is possible to uniformly laminate molding.

In addition, according to another aspect of the invention the present invention is a work table; A lamination hot roll positioned on the work table and laminating a green sheet on a glass substrate on the work table; And a backup roll disposed on the top of the hot roll in a direction parallel to the axis of the hot roll and providing a force for pressing the hot roll toward the work table, wherein the backup roll has a curvature to offset the amount of deformation of the hot roll. A lamination apparatus having a is disclosed. In this case, the backup roll may further include at least three auxiliary rolls disposed in a direction parallel to the axis of the backup roll, and providing a force for pressing the backup roll toward the hot roll. Therefore, a back-up roll having a curvature capable of canceling the deformation of the hot roll can perform uniform lamination by pressing the hot roll.

According to another aspect of the present invention, the present invention provides a work table; A lamination hot roll positioned on the work table and laminating a green sheet on a glass substrate on the work table; And a hot roll deformation prevention device disposed below both shafts of the hot roll and capable of height adjustment. In this case, the hot roll may further include at least three auxiliary rolls disposed in a direction parallel to the axis of the hot roll and providing a force for pressing the hot roll toward the work table. The apparatus may further include a backup roll disposed on an upper side of the hot roll in a direction parallel to the axis of the hot roll and providing a force for pressing the hot roll toward the work table, wherein the backup roll offsets the deformation amount of the hot roll. To have curvature. As a result, uniform lamination is possible by minimizing the degree of deformation of the hot roll.

Here, the auxiliary roll or the backup roll is coated with a material containing a wear resistant material, the wear resistant material may be a plastic material or a metal material of at least one of urethane or Teflon. As a result, the pressure of the backup roll is properly transmitted to the hot roll unlike the conventional art, which is advantageous for uniform lamination.

Hereinafter, embodiments of the present invention shown in the accompanying drawings will be described in detail.

2 is a view schematically showing a lamination device according to an embodiment of the present invention. The lamination device shown in FIG. 2 includes a work table 14, a moving device 13, a hot roll 15 and a plurality of auxiliary rolls 16. The work table 14 is fixed to the moving device 13 and moves with the moving device 13. The glass substrate 11 may be placed on the work table 14 surface, and an adhesive layer (not shown) for adhering the green sheet 12 may be formed on the exposed surface of the glass substrate 11. Then, the green sheet 12 to be laminated is aligned with the glass substrate 11. A hot roll 15 is disposed above the work table 14 and the glass substrate 11, and above the hot roll 15, auxiliary roll units 16 and 17 having four auxiliary rolls 16 are provided. Is placed.

Each auxiliary roll 16 may be made of a wear resistant material, for example a plastic material such as urethane or teflon, or may be coated with a metal material. When the auxiliary roll 16 is coated with an elastic body such as silicon, the pressure of the auxiliary roll 16 may not be properly transmitted to the hot roll 15, and thus, an inelastic material among the wear resistant materials should be used. Therefore, the pressure of the auxiliary roll 16 can be transmitted to the hot roll 15 more quickly than in the prior art.

Since one auxiliary roll 16 is connected to one pressure cylinder 17, for example, a pneumatic cylinder or a hydraulic cylinder, four pressure cylinders 17 are required when four auxiliary rolls 16 are used. Each auxiliary roll 16 connected to each pressure cylinder 17 presses the hot roll 15 toward the work table 14. At this time, each auxiliary roll 16 is independently controlled in the vertical direction by the pressure cylinder 17. Therefore, since the pressure is controlled for each auxiliary roll 16 to offset the pressure variation for each longitudinal direction generated from the hot roll 15, uniform lamination is possible.

3 is a diagram schematically showing a lamination device according to another embodiment of the present invention. The lamination device shown in FIG. 3 includes a work table 14, a moving device 13, a hot roll 25 and a backup roll 28. The work table 14 is fixed to the moving device 13 and moves with the moving device 13. The glass substrate 11 may be placed on the work table 14 surface, and an adhesive layer for bonding the green sheet 12 may be formed on the exposed surface of the glass substrate 11. Then, the green sheet 12 to be laminated is aligned with the glass substrate 11. The hot rolls 25 are disposed above the work table 14 and the glass substrate 11.

The backup roll 28 is disposed on the top of the hot roll 25 in a direction parallel to the axis 25a of the hot roll, and provides a force for pressing the hot roll 25 toward the work table 14 while contacting the hot roll 25. . At this time, the backup roll 28 should have a curvature enough to measure the degree of deformation of the hot roll 25 to correct it. The degree of deformation of the hot roll 25 depends on the type of the green sheet 12 to be laminated formed on the glass substrate 11, for example, a dry film resist (DFR).

The backup roll 28 may be a wear resistant material, for example, a plastic material such as urethane or teflon or may be coated with a metal material. When the backup roll 28 is coated by an elastic body such as silicon, the pressure of the backup roll 28 may not be properly transmitted to the hot roll 25, and thus, a non-elastic material should be used among the wear resistant materials. Therefore, unlike the related art, the pressure of the backup roll 28 can be properly transmitted to the hot roll 25. In addition, the back-up roll 28 of the curvature which can cancel the deformation | transformation of the hot roll 25 in this way is used. That is, as shown in the figure, when the central portion of the hot roll 25 is raised up relative to both ends, the central portion of the backup roll 28 is formed convexly by the amount of deformation thereof. Therefore, it is possible to perform uniform laminate molding unlike the conventional art.

4 is a diagram schematically showing a lamination device according to another embodiment of the present invention. The lamination device shown in FIG. 4 further includes auxiliary roll units 16, 17 having a plurality of auxiliary rolls 16 on top of the lamination device shown in FIG. 3. Here, the auxiliary roll units 36 and 37 have the same configuration as the auxiliary roll units 16 and 17 described in the embodiment shown in FIG. The only difference is that the auxiliary roll 36 is disposed on top of the backup roll 38 to transmit the force for pressing the backup roll 38 toward the hot roll 36. Therefore, when a pressure deviation occurs in the backup roll 38, the pressure deviation for each part can be reduced by individually controlling the pressure cylinder 37 provided for each auxiliary roll 36. Therefore, more uniform lamination is possible.

5 is a view schematically showing a lamination device according to another embodiment of the present invention. The lamination device shown in FIG. 5 further includes a hot roll deformation preventing device 49. The hot roll deformation preventing unit 49 is disposed under each of the two shafts 45a of the hot roll, and a height-adjustable block, a pneumatic cylinder, or an elastic spring may be used. The hot roll deformation preventing device 49 minimizes the deformation of the hot roll 45 by adjusting the height appropriately to offset the deformation of the hot roll 45 by the pressure applied to both ends of the hot roll 45. Thus, uniform lamination is possible.

6 is a diagram schematically showing a lamination device according to another embodiment of the present invention. The lamination apparatus shown in FIG. 6 further includes auxiliary roll units 56, 57 having four auxiliary rolls 56 on top of the lamination apparatus shown in FIG. 5. Here, the auxiliary roll 56 has the same configuration as the auxiliary roll units 16 and 17 described in the embodiment shown in FIG. By further providing the auxiliary roll 56, the pressure deviation that is not removed by the hot roll deformation preventing device 59 can be further reduced. Therefore, more uniform lamination is possible.

7 is a diagram schematically showing a lamination device according to another embodiment of the present invention. The lamination apparatus shown in FIG. 7 further includes a backup roll 68 in the lamination apparatus shown in FIG. 5. Here, the backup roll 68 has the same configuration as the backup roll 28 described in the embodiment shown in FIG. By further providing a backup roll 68, it is possible to further reduce the pressure deviation not removed by the hot roll deformation preventing device 69. Therefore, more uniform lamination is possible.

8 is a diagram schematically showing a lamination device according to another embodiment of the present invention. The lamination apparatus shown in FIG. 8 additionally includes auxiliary roll units 76 and 77 having four auxiliary rolls 76 in the lamination apparatus shown in FIG. Here, the auxiliary roll units 76 and 77 have the same configuration as the auxiliary roll units 16 and 17 described in the embodiment shown in FIG. By further providing the auxiliary rolls 76 and 77 and the backup roll 78, it is possible to further reduce the pressure deviation that is not removed even by the hot roll deformation preventing device 79. Therefore, more uniform lamination is possible.

Lamination apparatus of the present invention is coated with a non-elastic wear-resistant material, each having a plurality of auxiliary rolls that are independently controlled. In addition, the lamination apparatus of the present invention has a curvature to offset the amount of deformation of the hot roll, it may be provided alone or additionally the back-up roll coated with a non-elastic wear-resistant material. In addition, the lamination apparatus of the present invention may be provided alone or additionally in the lower portion of both axes of the hot roll deformation preventing device for preventing the deformation of the hot roll. Therefore, a green sheet can be laminated-molded on a glass substrate by uniform pressure.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

Claims (16)

Working table; A lamination hot roll positioned on the work table and laminating a green sheet on a glass substrate on the work table; And And at least three auxiliary rolls disposed on an upper side of the hot roll in a direction parallel to the axis of the hot roll and providing a force for pressing the hot roll toward the work table. Working table; A lamination hot roll positioned on the work table and laminating a green sheet on a glass substrate on the work table; And A backup roll disposed on an upper side of the hot roll in a direction parallel to the axis of the hot roll and providing a force for pressing the hot roll toward the work table; The backup roll has a lamination device having a curvature so as to cancel the deformation amount of the hot roll. The method of claim 2, And at least three auxiliary rolls disposed on an upper side of the backup roll in a direction parallel to the axis of the backup roll and providing a force for pressing the backup roll toward the hot roll. Working table; A lamination hot roll positioned on the work table and laminating a green sheet on a glass substrate on the work table; And Lamination apparatus disposed on the lower portion of both axes of the hot roll, including a hot roll deformation preventing device capable of height adjustment. The method of claim 4, wherein The hot roll deformation apparatus is any one selected from the group consisting of a block, a pressure cylinder and an elastic member. The method of claim 4, wherein And at least three auxiliary rolls disposed on top of the hot roll in a direction parallel to the axis of the hot roll and providing a force for pressing the hot roll toward the work table. The method of claim 4, wherein A backup roll disposed on the top of the hot roll in a direction parallel to the axis of the hot roll, the backup roll providing a force for pressing the hot roll toward the work table, the backup roll having a curvature to offset the amount of deformation of the hot roll; Lamination apparatus having a. The method of claim 7, wherein And at least three auxiliary rolls disposed on the backup roll in a direction parallel to the axis of the backup roll and providing a force for pressing the backup roll toward the work table. The method according to any one of claims 1, 3, 6 or 8, The auxiliary roll is a lamination device is coated with a material containing a wear-resistant material. The method of claim 9, The wear-resistant material of the auxiliary roll is a lamination device is a material having at least one of urethane or teflon. The method of claim 9, The wear-resistant material of the auxiliary roll is a lamination device is a material of a metal material. The method according to any one of claims 1, 3, 6 or 8, Each pressure roll is connected to each auxiliary roll, and each pressure cylinder is independently controlled lamination apparatus. The method according to any one of claims 2, 3, 7, or 8, The backup roll lamination device is coated with a material containing a wear-resistant material. The method of claim 13, The wear-resistant material of the back-up roll is a lamination device is a material having at least one of urethane or teflon. The method of claim 13, The wear-resistant material of the backup roll is a lamination device is a material of a metal material. The method according to any one of claims 1 to 8, Lamination apparatus further comprises a moving device for moving the work table.
KR1020070053412A 2007-05-31 2007-05-31 Lamination apparatus KR20080105615A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020070053412A KR20080105615A (en) 2007-05-31 2007-05-31 Lamination apparatus

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Application Number Priority Date Filing Date Title
KR1020070053412A KR20080105615A (en) 2007-05-31 2007-05-31 Lamination apparatus

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160013472A (en) * 2014-07-25 2016-02-04 삼성디스플레이 주식회사 Lamination apparatus and lamination method
KR20190034766A (en) * 2017-09-25 2019-04-03 주식회사 엘지화학 Roll type lamination apparatus
KR20230166366A (en) 2022-05-30 2023-12-07 주식회사 디에이피 hot roll device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160013472A (en) * 2014-07-25 2016-02-04 삼성디스플레이 주식회사 Lamination apparatus and lamination method
KR20190034766A (en) * 2017-09-25 2019-04-03 주식회사 엘지화학 Roll type lamination apparatus
KR20230166366A (en) 2022-05-30 2023-12-07 주식회사 디에이피 hot roll device

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