JPS6319235A - Preparation of foamed sheet - Google Patents
Preparation of foamed sheetInfo
- Publication number
- JPS6319235A JPS6319235A JP16389786A JP16389786A JPS6319235A JP S6319235 A JPS6319235 A JP S6319235A JP 16389786 A JP16389786 A JP 16389786A JP 16389786 A JP16389786 A JP 16389786A JP S6319235 A JPS6319235 A JP S6319235A
- Authority
- JP
- Japan
- Prior art keywords
- foam
- block
- foamed
- sheet
- cylindrical
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 claims abstract description 22
- 230000002093 peripheral effect Effects 0.000 claims abstract description 9
- 238000005187 foaming Methods 0.000 claims abstract description 8
- 238000004080 punching Methods 0.000 claims abstract description 5
- 239000006260 foam Substances 0.000 claims description 67
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 238000005304 joining Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 206010040844 Skin exfoliation Diseases 0.000 abstract description 5
- 238000005520 cutting process Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 229920001684 low density polyethylene Polymers 0.000 description 2
- 239000004702 low-density polyethylene Substances 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
Classifications
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/56—After-treatment of articles, e.g. for altering the shape
- B29C44/5627—After-treatment of articles, e.g. for altering the shape by mechanical deformation, e.g. crushing, embossing, stretching
- B29C44/5654—Subdividing foamed articles to obtain particular surface properties, e.g. on multiple modules
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は長尺で薄物の発泡体を製造する方法に係り、特
に発泡体を円柱状発泡体ブロックに形成した後でスライ
ス加工して薄物の発泡体シートを製造する製造方法に関
するものである。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a method for manufacturing a long and thin foam, and in particular, the foam is formed into a cylindrical foam block and then sliced to produce a thin foam. The present invention relates to a manufacturing method for manufacturing a foam sheet.
〈従来の技術〉
従来長尺で薄物の発泡体を製造する方法としては連続発
泡方法により２〜１０龍厚の長尺発泡体シートを製造す
る方法と、第４図乃至第７図に示す如く、通常のプレス
発泡で製造された４０ｍｍ厚前後の複数個の板状発泡ブ
ロック１の両端をバイアスカットして接合面を拡げた上
で列車状に順に接着して連結して帯状シート２に形成し
、次にこの帯状シート２を上下の中央部に於いてカッタ
ー３で水平に切断し、この工程を何回も繰り返すことに
よって所望の厚さの長尺発泡体シートを製造する方法と
があった。<Prior art> Conventional methods for manufacturing long and thin foams include a method of manufacturing a long foam sheet with a thickness of 2 to 10 cm by a continuous foaming method, and a method as shown in FIGS. 4 to 7. A plurality of plate-shaped foam blocks 1 with a thickness of around 40 mm manufactured by normal press foaming are bias cut at both ends to widen the joint surfaces, and then bonded and connected in order in a train shape to form a band-shaped sheet 2. Next, there is a method of manufacturing a long foam sheet of a desired thickness by cutting this belt-shaped sheet 2 horizontally at the center of the top and bottom with a cutter 3 and repeating this process many times. Ta.
〈発明が解決しようとする問題点〉
然るに前者の方法は一定の厚さを持った長尺で薄物の発
泡体シートを大量に生産することは出来るが、掻めて高
価な設備を必要とすると共に物性に於いても厚さに於い
ても規格化されてしまうので、多種多様の用途に合わせ
て細かい選択をすることが不可能であり、現状ではあま
り実施されていないのが実情であった。<Problem to be solved by the invention> However, although the former method allows the production of long and thin foam sheets with a certain thickness in large quantities, it requires expensive equipment. At the same time, both physical properties and thickness are standardized, making it impossible to make detailed selections to suit a wide variety of uses, and the reality is that this practice is not practiced much at present. .
次に後者の方法は多種多様の用途に合致した小ロットの
ものを製造することは出来るが、全体が嵩張り、特に最
初の切断加工の際には図に示す如く帯状シート２が厚い
為に巻き取ることが出来ずに取り扱いが不便であると共
に加工する為に広いスペースを必要とし、更に上下の中
央部を平行にしかも均一にスライス切断をし、しかも何
回も繰り返すことによって所望の厚さの最終製品を得る
ので、初めから最終製品の厚みを正確に計算した上で正
確に実施しなければならず、加工途中で誤差が発生した
場合又は発泡体に歪みによる厚さの誤差があった場合に
は不良品が多発される恐れがあり、加工には極めて熟練
を必要とし、又シートの加工は引っ張りながら実施され
るが、加工中の引っ張り方向と発泡ブロックの接着面が
垂直である為に、この接着面が剥離し易（事故が発生す
る等の多くの問題があった。Next, although the latter method allows manufacturing small lots that meet a wide variety of uses, the entire product is bulky, and especially during the initial cutting process, the belt-shaped sheet 2 is thick as shown in the figure. It is inconvenient to handle as it cannot be rolled up, and requires a large space for processing.Furthermore, the desired thickness is achieved by cutting parallel and uniform slices in the upper and lower centers, and repeating the process many times. In order to obtain the final product, the thickness of the final product must be calculated accurately from the beginning and the process must be carried out accurately.If an error occurs during processing or if there is an error in the thickness due to distortion of the foam In some cases, there is a risk that many defective products will be produced, and processing requires extremely skill.Also, the sheet is processed while being stretched, but the direction of tension during processing is perpendicular to the bonding surface of the foam block. Moreover, there were many problems such as the adhesive surface easily peeling off (causing accidents).
本発明は従来のこれ等の欠点を根本的に改善した°全く
新規な技術に関するものである。The present invention relates to a completely new technology that fundamentally improves these conventional drawbacks.
〈問題点を解決するための手段〉
本発明は、プレス発泡法で成形された板状発泡体ブロッ
クを打ち抜いて形成した数個の発泡体円板を相互に背中
合わせに接合して円柱状発泡体ブロックを構成するか、
或いは発泡体のスクラップやゴムのスクラップ等を粉砕
機で２〜８１−に粉砕したものを接着剤と一諸に撹拌し
て円柱状に圧縮乾燥して円柱状発泡体ブロックを構成し
、該円柱状発泡体ブロックをスライス加工刃で外周面か
ら皮を剥く要領で連続してスライス加工することによっ
て長尺で薄物の発泡体シートを製造する発泡体シートの
製造方法である。<Means for Solving the Problems> The present invention produces a cylindrical foam by joining several foam disks back to back, which are formed by punching out a plate-shaped foam block formed by a press foaming method. Configure the block or
Alternatively, a cylindrical foam block is formed by crushing foam scraps, rubber scraps, etc. into 2 to 81 pieces using a crusher, stirring them together with an adhesive, and compressing and drying them into a cylindrical shape. This is a method for manufacturing a foam sheet in which a long and thin foam sheet is manufactured by continuously slicing a columnar foam block using a slicing blade in the same manner as peeling off the skin from the outer peripheral surface.
く作用〉
本発明に於いては上述の如く、プレス発泡法で成形され
た板状発泡体ブロックを打ち抜いて形成した数個の発泡
体円板を相互に背中合わせに接合して円柱状発泡体ブロ
ックを構成するか、或いは発泡体のスクラップやゴムの
スクラップ等を粉砕機で２〜８Ｎに粉砕したものを接着
剤と一緒に攬 ・拌して円柱状に圧縮乾燥して円柱状発
泡体ブロックを構成し、次に構成された円柱状発泡体ブ
ロックをスライス加工刃で外周面から皮を剥く要領で連
続してスライス加工することによって長尺で薄物の発泡
体シートを製造する発泡体シートの製造方法であるので
、円柱状発泡体ブロックをその外周面から所定の厚さに
スライス加工することによって次々に所定の肉厚の発泡
体シートを製造することが出来る。Function> As described above, in the present invention, several foam disks formed by punching out a plate-shaped foam block formed by a press foaming method are bonded back to back to form a cylindrical foam block. Alternatively, use a crusher to crush foam scraps, rubber scraps, etc. to 2 to 8 N and mix them together with adhesive, then compress and dry them into a cylindrical shape to form a cylindrical foam block. manufacturing a foam sheet, in which a long and thin foam sheet is manufactured by continuously slicing the configured cylindrical foam block with a slicing blade in the same manner as peeling off the skin from the outer peripheral surface. With this method, foam sheets of a predetermined thickness can be manufactured one after another by slicing a cylindrical foam block from its outer peripheral surface to a predetermined thickness.
〈実施例〉
図により本発明に係る第１の発明について詳述すると次
の通りである。<Example> The first invention according to the present invention will be described in detail with reference to figures as follows.
先ず第１回乃至第３図に於いて、１は通常のプレス発泡
法で成形された板状発泡体ブロックであり、４はこのブ
ロック１よりプレス等で打ち抜かれた発泡体円板である
０次に５は複数個の発泡体円板４を背中合わせ状に接合
して構成した円柱状発泡体ブロックである。First, in Figures 1 to 3, 1 is a plate-shaped foam block formed by a normal press foaming method, and 4 is a foam disk punched from this block 1 by a press or the like. Next, 5 is a cylindrical foam block constructed by joining a plurality of foam disks 4 back to back.
この円柱状発泡体ブロック５から長尺で薄物の発泡体シ
ート６を得るに当たっては、スライス加工刃７を介して
該ブロック５の外周面から所定の厚さに皮を剥くように
徐々にスライス加工をすることによって連続的に製造す
ることが出来る。In order to obtain a long and thin foam sheet 6 from this cylindrical foam block 5, the block 5 is gradually sliced to a predetermined thickness from its outer peripheral surface using a slicing blade 7. By doing this, it can be manufactured continuously.
本発明に使用される発泡体としては見掛は密度０．０５
〜０．３０ ｇ／ａｆ ’ｃ持つエチレン酢酸ビニル共
重合発泡体（ＥＶＡ発泡体）或いは低密度ポリエチレン
発泡体（ＬＤＰＥ全ＰＥ）等を使用することが出来る。The foam used in the present invention has an apparent density of 0.05
An ethylene-vinyl acetate copolymer foam (EVA foam) or a low-density polyethylene foam (LDPE all PE) having a g/af'c of ~0.30 g/af'c can be used.
次に本発明に係る第２の発明についてその一例を具体的
に説明すると、この第２の発明に於いては第１の発明の
実施等によって発生した発泡体のスクラップやゴム等の
スクラップを粉砕機で２〜８１の径に粉砕したものを接
着剤と一緒に撹拌したものを円柱状に圧縮乾燥し、円柱
状発泡体ブロックを構成し、この円柱状発泡体ブロック
を前述と同様な工程でスライス加工刃によってスライス
加工をすることにより所望する長尺で薄物の発泡体シー
トを得ることが出来る。Next, to specifically explain an example of the second invention according to the present invention, in this second invention, scraps of foam, scraps of rubber, etc. generated by implementing the first invention etc. are pulverized. The cylindrical foam block is crushed by a machine to a diameter of 2 to 81 mm, stirred with adhesive, and compressed into a cylindrical shape to form a cylindrical foam block. A desired long and thin foam sheet can be obtained by slicing with a slicing blade.
〈発明の効果〉
本発明に係る方法は上述の如く、円柱状発泡体ブロック
を外周面からスライス加工することによって発泡体シー
トを製造するので、所望する肉厚の発泡体シートを始め
から連続的に製造出来、又その発泡体シートの長さと幅
は円柱状発泡体ブロックの径と長さにより自在に変更す
ることが出来、従ってこれによって前述の従来の欠点を
根本的に解決することが出来る特徴を有するものである
。<Effects of the Invention> As described above, the method according to the present invention manufactures a foam sheet by slicing a cylindrical foam block from the outer peripheral surface, so that a foam sheet of a desired thickness can be produced continuously from the beginning. Moreover, the length and width of the foam sheet can be freely changed depending on the diameter and length of the cylindrical foam block, which can fundamentally solve the above-mentioned conventional drawbacks. It has characteristics.
更に本発明の第１の方法に於いては型抜き等によって発
泡体円板製品の精度が出やすく、又寸法に狂いがあって
も表面を一定寸法を持って順にスライス加工することに
よって円滑な安定した作業をすることが出来、又発泡体
円板は種々の材質又は色を持ったものを順に接着して構
成出来、従って種々の色が帯状になったものや左右で材
質が異なる発泡体シートを製造することが出来、しかも
発泡体円板は背中合わせに接合されているので、従来の
如（加工中に剥離する等の恐れが無い等の特徴を有する
ものである。Furthermore, in the first method of the present invention, the accuracy of the foam disk product can be easily obtained by cutting out the mold, and even if there is a deviation in the dimensions, the surface can be sliced in order with constant dimensions to ensure a smooth surface. It is possible to work stably, and foam disks can be constructed by sequentially gluing together pieces of various materials or colors. It is possible to manufacture a sheet, and since the foam disks are joined back to back, there is no risk of peeling off during processing, as in conventional methods.
第１図乃至第３図は本発明の一実施例の説明図、第４図
乃至第７回は従来技術の説明図である。
１は板状発泡体ブロック、４は発泡体円板、５は円柱状
発泡体ブロック、６は発泡体シート、７はスライス加工
刃である。FIGS. 1 to 3 are explanatory diagrams of one embodiment of the present invention, and FIGS. 4 to 7 are explanatory diagrams of the prior art. 1 is a plate-shaped foam block, 4 is a foam disk, 5 is a cylindrical foam block, 6 is a foam sheet, and 7 is a slicing blade.
Claims (2)
打ち抜いて形成した数個の発泡体円板を相互に背中合わ
せに接合して円柱状発泡体ブロックを構成し、該円柱状
発泡体ブロックをスライス加工刃で外周面から皮を剥く
要領で連続してスライス加工することによって長尺で薄
物の発泡体シートを製造する発泡体シートの製造方法。(1) A cylindrical foam block is constructed by joining several foam discs formed by punching out a plate-shaped foam block formed by a press foaming method back to back to each other, and the cylindrical foam block is A method for manufacturing a foam sheet, in which a long and thin foam sheet is manufactured by continuously slicing the skin from the outer peripheral surface using a slicing blade.
砕したものを接着剤と一緒に撹拌して円柱状に圧縮乾燥
して円柱状発泡体ブロックを構成し、該円柱状発泡体ブ
ロックをスライス加工刃で外周面から皮を剥く要領で連
続してスライス加工することによって長尺で薄物の発泡
体シートを製造する発泡体シートの製造方法。(2) A cylindrical foam block is constructed by crushing foam scraps, etc. into 2-8 mm pieces using a crusher, stirring them together with an adhesive, compressing and drying them into a cylindrical shape, and forming a cylindrical foam block. A method for manufacturing a foam sheet, in which a long and thin foam sheet is manufactured by continuously slicing the skin from the outer peripheral surface using a slicing blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16389786A JPS6319235A (en) | 1986-07-14 | 1986-07-14 | Preparation of foamed sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16389786A JPS6319235A (en) | 1986-07-14 | 1986-07-14 | Preparation of foamed sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6319235A true JPS6319235A (en) | 1988-01-27 |
Family
ID=15782887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16389786A Pending JPS6319235A (en) | 1986-07-14 | 1986-07-14 | Preparation of foamed sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6319235A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000000345A1 (en) * | 1998-06-29 | 2000-01-06 | Eltech Systems Corporation | Production of a porous foam product for battery electrodes |
| EP1914046A1 (en) * | 2006-10-20 | 2008-04-23 | Dunlop Latex Foam Limited | Process for making a flexible foam sheet |
| EP1929068A1 (en) * | 2005-09-07 | 2008-06-11 | Vale Inco Limited | Process for producing metal foams having uniform cell structure |
| WO2022080340A1 (en) | 2020-10-15 | 2022-04-21 | 米島フエルト産業株式会社 | Method for manufacturing long foam sheet, method for manufacturing composite material, and long foam sheet |
-
1986
- 1986-07-14 JP JP16389786A patent/JPS6319235A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000000345A1 (en) * | 1998-06-29 | 2000-01-06 | Eltech Systems Corporation | Production of a porous foam product for battery electrodes |
| US6383687B1 (en) | 1998-06-29 | 2002-05-07 | Stork Screens, B.V. | Production of a porous foam product for battery electrodes |
| EP1929068A1 (en) * | 2005-09-07 | 2008-06-11 | Vale Inco Limited | Process for producing metal foams having uniform cell structure |
| EP1929068A4 (en) * | 2005-09-07 | 2012-10-03 | Vale Inco Ltd | Process for producing metal foams having uniform cell structure |
| EP1914046A1 (en) * | 2006-10-20 | 2008-04-23 | Dunlop Latex Foam Limited | Process for making a flexible foam sheet |
| WO2022080340A1 (en) | 2020-10-15 | 2022-04-21 | 米島フエルト産業株式会社 | Method for manufacturing long foam sheet, method for manufacturing composite material, and long foam sheet |
| KR20230015442A (en) | 2020-10-15 | 2023-01-31 | 요네시마펠트 씨오., 엘티디. | Manufacturing method of long foam sheet, manufacturing method of composite material, and long foam sheet |
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