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Foaming box for base plate transporting

A substrate conveying and foaming box technology, which is applied in the direction of transportation and packaging, containers, packaging items, etc., can solve problems such as deterioration, and achieve the effect of improving operability

Inactive Publication Date: 2009-12-30
YODOGAWA HI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] However, since this glass substrate conveying box is repeatedly used, the deterioration of the support groove part which frequently contacts the glass substrate is serious, so there is a limit to suppressing the generation of dust only by increasing the hardness of the foam.
Such problems exist not only in glass substrates, but also in substrate transfer boxes for transferring substrates with the same characteristics as glass substrates

Method used

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  • Foaming box for base plate transporting
  • Foaming box for base plate transporting
  • Foaming box for base plate transporting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0045] (Structure of foam box for substrate transfer)

[0046] refer to figure 1 and figure 2 The structure of the foam tank for board|substrate transfer of this embodiment is demonstrated. This substrate transport foam box is composed of a box body 1 , a support member 3 , a box-shaped cover body 2 , and concave-convex surface joining members 4 , 4 .

[0047] (box body 1)

[0048] The box body 1 is composed of a box-shaped member with an open top and a bottom. Polyethylene-based (low-density polyethylene, high-density polyethylene, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, ionomer, etc. or their blends) foams, polymers, etc. Polyolefin foams such as propylene foams. It is particularly desirable to use a high-strength polypropylene-based foam as the foam box for substrate transportation.

[0049] The expansion magnification of the polyolefin foam is 3 to 30 times, preferably 4 to 25 times, more preferably 5 to 20 times, particularly preferably 7 to...

Embodiment 1

[0092] refer to figure 1 and 2 , the following shows the foam molding of the box body 1 of the substrate transport foam box of the first embodiment. First, after the foamable polypropylene particles are preliminarily expanded, they are left to replace the contained gas with air. Then fill it in an aluminum mold and blow it into 4kg / cm 2 water vapor for foaming. Then, it heated at 60 degreeC, and the box main body 1 with a bottom was obtained.

[0093] A substrate support groove 10A for supporting a glass substrate is formed in the longitudinal direction on the inner surface side of a pair of opposing surfaces of the box body 1 using a mold. The foam has independent bubbles substantially, and the overall foaming magnification of the foam is 12 times, wherein the foaming magnification from the inner and outer surfaces to a depth of 1 mm is 4 to 5 times, and the foaming magnification on both surfaces The epidermis is formed.

[0094] Similarly, by foaming and molding expand...

Embodiment 2

[0101] Except using the conductive grade foamed polypropylene containing 20% ​​by weight of carbon black (it can also be the foamed polypropylene added with the surfactant of the anti-electricity grade), the same method as in Example 1 was used to manufacture the foamed body. The box body 1, the cover body 2, and the support member 3 are formed.

[0102] The volume resistivity (according to ASTM D257) of both surfaces of these foams is 10 4 ~10 11 within the range of Ω·cm. Mounting of the male and female surface fasteners 4a, 4b is also carried out in the same manner as in the first embodiment. The substrate transport box of the second embodiment is suitable for storing and transporting or storing finished glass substrates or liquid crystal element panels after TFI formation, and can carry out loading and unloading into and out of the substrate transport box 100 very smoothly. out work.

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Abstract

A foam box for transferring substrates. The foam box includes a body 1, a supporting member 3, a cover 2, and fasteners 4a, 4b. The body 1 is made of polyolefin, and includes grooves 10A for supporting the substrates at its opposite inner walls. The supporting member 3 includes upper supporting grooves 10B for protecting the portion, protruding from the body 1, of the glass substrates 100. The cover 2 is made of polyolefin foam material. The fasteners 4a, 4b are disposed on the supporting members 3 and the cover 2. By such a structure, the portion, protruding from the body, of the glass substrates can be protected. Also, after the cover is assembled, the glass substrates are accurately disposed in the grooves of the body. In addition, the glass substrates can be automatically removed by an unpacker.

Description

technical field [0001] The present invention relates to storage and transportation of multiple glass substrates (glass substrates, glass substrates for liquid crystal displays, glass substrates for plasma displays, fluorescent display tubes, glass substrates for thermal heads, color filters, etc.) or manufacturing of glass substrates using these glass substrates. Foam box for substrate transportation such as finished boards. Background technique [0002] (Glass substrate transport tanks using injection molding system and its problems) [0003] In order to transport the glass substrate and the glass plate (including the finished plate) using the glass substrate between the glass manufacturing plant, the color filter manufacturing plant, the plasma display body manufacturing plant and the equipment manufacturing plant, etc., the use of ABS resin, polyester Injection-molded products of various resins represented by vinyl chloride resins or assemblies of such injection-molded p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65D85/48B65D85/86B65D81/113B65D25/10B65D81/02H01L21/673H01L21/68
CPCB65D81/113B65D85/48
Inventor 吉田俊雄大西玉洋福本广伸大塚龙治
Owner YODOGAWA HI TECH CO LTD