JP2009255401A - Rubber chip shaping solidifying method and rubber chip shaping solidifying equipment - Google Patents

Rubber chip shaping solidifying method and rubber chip shaping solidifying equipment Download PDF

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JP2009255401A
JP2009255401A JP2008107432A JP2008107432A JP2009255401A JP 2009255401 A JP2009255401 A JP 2009255401A JP 2008107432 A JP2008107432 A JP 2008107432A JP 2008107432 A JP2008107432 A JP 2008107432A JP 2009255401 A JP2009255401 A JP 2009255401A
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side mold
mold
saturated steam
cavity
rubber chip
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Yutaka Tsuda
裕 都田
Masayoshi Yamanashi
眞義 山梨
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MY SYSTEM KK
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/0026Recovery of plastics or other constituents of waste material containing plastics by agglomeration or compacting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/04Disintegrating plastics, e.g. by milling
    • B29B17/0412Disintegrating plastics, e.g. by milling to large particles, e.g. beads, granules, flakes, slices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/04Disintegrating plastics, e.g. by milling
    • B29B2017/042Mixing disintegrated particles or powders with other materials, e.g. with virgin materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/04Disintegrating plastics, e.g. by milling
    • B29B2017/0424Specific disintegrating techniques; devices therefor
    • B29B2017/0484Grinding tools, roller mills or disc mills
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2019/00Use of rubber not provided for in a single one of main groups B29K2007/00 - B29K2011/00, as moulding material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2075/00Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/24Condition, form or state of moulded material or of the material to be shaped crosslinked or vulcanised
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2030/00Pneumatic or solid tyres or parts thereof
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/62Plastics recycling; Rubber recycling

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rubber chip shaping solidifying method and equipment in which a shaping time is shortened and the quantity of used saturated steam is reduced by reducing the number of heating steps, a clouding phenomenon and the unevenness of slit grooves are eliminated and the commercial value of the product is enhanced by making the saturated steam not pass to the surface of a product. <P>SOLUTION: A thermosetting resin adhesive of a moisture curing type and cut rubber chips are blended and mixed at a predetermined ratio, the inside of a cavity of a mold comprising a cavity side mold 7 and a core side mold 9 is filled with the raw material mixture 5 comprising the rubber chips and the thermosetting resin adhesive, the core side mold 9 is fitted into the cavity side mold 7 to be press-shaped, saturated steam S is introduced from the peripheral faces excepting the bottom face of the cavity side mold 7 and the bottom face of the core side mold 9 to heat the raw material mixture 5 and the mold, and thereafter, the saturated steam S is delivered from the bottom face of the core side mold 9 toward the peripheral faces expecting the bottom face of the cavity side mold 7, and the thermosetting resin adhesive is solidified by moisture with the saturated steam S to adhere and solidify the rubber chips themselves. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明はゴムチップ成形固化方法とゴムチップ成形固化装置に係り、特に廃タイヤ、工業ゴム製品の不良品又はバリとして除去された部分等を利用して、ゴム製ブロック、タイル、敷石等の製品を容易に低コストで製造できるようにしたものに関する。   TECHNICAL FIELD The present invention relates to a rubber chip molding and solidifying method and a rubber chip molding and solidifying apparatus, and in particular, easily uses products such as rubber blocks, tiles, and paving stones by using waste tires, defective parts of industrial rubber products or parts removed as burrs. It is related to what can be manufactured at low cost.

近年、世界規模で発達する車社会に伴い、廃タイヤの排出量も飛躍的に増大している。上記廃タイヤの処分は、当初、焼却または埋め立てていた。しかし、焼却すると公害発生の原因となり、埋め立てると自然腐敗せず、環境破壊になりその処分が社会的な問題になっている。また、工業ゴム製品の不良品やバリとして除去される不良ゴム片・バリ片も大量に排出され、その処分も社会的な問題になっている。   In recent years, with the development of a world-wide automobile society, the amount of waste tire emissions has also increased dramatically. The disposal of the waste tires was initially incinerated or landfilled. However, incineration causes pollution, and when landfilled, it does not decay naturally, destroying the environment and disposing of it becomes a social problem. In addition, defective rubber pieces and burrs that are removed as defective products of industrial rubber products and burrs are also discharged in large quantities, and disposal of them is also a social problem.

上記事態に鑑みて、廃タイヤや工業ゴム製品の不良品やバリ片の再利用を図る目的で、廃タイヤ等を原材料とした種々のリサイクル製品が造られている。このようなリサイクル製品の一例として、公園や道路などに敷設される舗装用ブロックやタイル、敷石、植栽用プランターなどに再利用されている。   In view of the above situation, various recycled products using waste tires or the like as raw materials have been made for the purpose of reusing waste tires, defective products of industrial rubber products and burrs. As an example of such a recycled product, it is reused for paving blocks, tiles, paving stones, planting planters and the like laid in parks, roads and the like.

上記廃タイヤを利用したリサイクル製品の製造方法が多く提案されている。その一例となるゴムチップ成形固化方法は、バインダーとして空気中の水分または乾燥飽和蒸気と反応する湿気硬化タイプの熱硬化性樹脂接着剤を用い、該熱硬化性樹脂接着剤と、所定大きさに裁断したゴムチップとを所定比率で配合して混練し、該ゴムチップと熱硬化性樹脂接着剤とからなる原料混練物を製品形状に形どられた金型のキャビティ内に充填して加圧成形した後、キャビティ側金型からコア側金型に向けておよびコア側金型からキャビティ側金型に向けて時間差をおいて飽和蒸気を交互に送給した後、キャビティ側金型とコア側金型の両面に飽和蒸気を同時に送給し、該飽和蒸気によって上記熱硬化性樹脂接着剤を加熱して湿気硬化させ、ゴムチップ同士を接着固化するものである(例えば、特許文献1参照。)。   Many methods for producing recycled products using the waste tires have been proposed. The rubber chip molding and solidifying method as an example is a moisture-curing type thermosetting resin adhesive that reacts with moisture in the air or dry saturated steam as a binder, and the thermosetting resin adhesive is cut into a predetermined size. After mixing and kneading the rubber chips at a predetermined ratio, filling the raw material kneaded material composed of the rubber chips and the thermosetting resin adhesive into the cavity of the mold shaped into the product shape, and press molding Saturated steam is alternately fed from the cavity side mold to the core side mold and from the core side mold to the cavity side mold with a time lag, and then the cavity side mold and the core side mold are Saturated steam is simultaneously supplied to both surfaces, and the thermosetting resin adhesive is heated and moisture-cured by the saturated steam to bond and solidify the rubber chips (see, for example, Patent Document 1).

特許第3328613号公報Japanese Patent No. 3328613

上記ゴムチップ成形固化方法は、バインダーとして湿気硬化タイプの熱硬化性樹脂接着剤を用い、これを飽和蒸気によって加熱硬化させることで、従来方法に比べて接着剤の硬化に要する時間を短縮でき、生産性を向上できるとしている。また、飽和蒸気による加熱に際し、キャビティ側金型からコア側金型に向けておよびコア側金型からキャビティ側金型に向けて時間差をおいて交互に飽和蒸気を送給した後、キャビティ側金型とコア側金型の両面に同時に飽和蒸気を送給することで、加熱の最初に行なわれる正逆交互の飽和蒸気加熱により、原料混練物中の隙間に存在する空気などのガスが金型外に追い出され、その後、両面加熱によって金型の表裏から飽和蒸気によって同時加熱して湿気硬化タイプの熱硬化型樹脂接着剤を硬化させるので、原料混練物の内部まで飽和蒸気がよく回り、硬化時間を大幅に短縮できるとともに、ゴムチップ同士の内部融着が良好となり、高品質の成形品を得ることができるとしている。   The rubber chip molding and solidification method uses a moisture-curing type thermosetting resin adhesive as a binder, and heat-cures it with saturated steam, thereby reducing the time required for curing the adhesive compared to the conventional method. It can be improved. In addition, when heating with saturated steam, after supplying saturated steam alternately with a time difference from the cavity side mold to the core side mold and from the core side mold to the cavity side mold, the cavity side mold By supplying saturated steam to both sides of the mold and the core side mold at the same time, gas such as air present in the gaps in the raw material kneaded material is formed by the alternating steam heating, which is performed at the beginning of heating. It is expelled to the outside and then simultaneously heated with saturated steam from the front and back of the mold by double-sided heating to cure the moisture-curing type thermosetting resin adhesive, so the saturated steam well rotates and cures to the inside of the raw material kneaded material It is said that the time can be greatly shortened and the internal fusion between the rubber chips becomes good, and a high-quality molded product can be obtained.

しかしながら、上記ゴムチップ成形固化方法によると、(1)加熱工程数が4工程と多いために、成形固化時間が長く掛かる上に使用飽和蒸気量が多くなり、加工時間の延長とランニングコストを増大させている。(2)製品表面に相当する部位に飽和蒸気を通す孔がある為に、バインダーの白濁化現象が起き、製品の商品価値を低下させてしまう。(3)スリット溝の凹凸が製品の表面に作られる為に、商品価値を低下させるという問題点があった。   However, according to the rubber chip molding and solidification method, (1) since the number of heating steps is as many as four, the solidification time takes longer and the amount of saturated steam used increases, which increases the processing time and running cost. ing. (2) Since there is a hole through which saturated vapor passes in a portion corresponding to the product surface, the clouding phenomenon of the binder occurs and the commercial value of the product is lowered. (3) Since the irregularities of the slit grooves are made on the surface of the product, there is a problem that the commercial value is lowered.

本発明はこのような点に基づいてなされたものでその目的とするところは、加熱工程数の減少で成形固化時間の短縮と使用飽和蒸気量の減少により、ランニングコストを図り、且つ、製品表面に相当する部位に飽和蒸気を通さないようにして白濁化現象やスリット溝の凹凸をなくし、製品の商品価値を高めたゴムチップ成形固化方法とそのゴムチップ成形固化装置を提供することにある。   The present invention has been made on the basis of these points, and the object of the present invention is to reduce the number of heating steps, shorten the molding solidification time, reduce the amount of saturated steam used, and reduce the running cost. It is an object of the present invention to provide a rubber chip molding and solidifying method and a rubber chip molding and solidifying apparatus in which the saturated vapor is not allowed to pass through the portion corresponding to the above, and the white turbidity phenomenon and slit groove irregularities are eliminated to increase the commercial value of the product.

上記目的を達成すべく本発明の請求項1のゴムチップ成形固化方法は、空気中の水分または飽和蒸気と反応する湿気硬化タイプの熱硬化性樹脂接着剤をバインダーとして用い、所定大きさに裁断したゴムチップに該熱硬化性樹脂接着剤を所定比率で配合・混練し、該ゴムチップと熱硬化性樹脂接着剤とからなる原料混練物を製品形状にかたどられたキャビティ側金型及びコア側金型からなる金型のキャビティ内に充填し、コア側金型をキャビティ側金型に嵌合して加圧成形し、飽和蒸気をキャビティ側金型の底面を除く周面及びコア側金型の底面から送入して原料混練物と金型とを加熱した後、飽和蒸気をコア側金型の底面からキャビティ側金型の底面を除く周面に向けて送給し、該飽和蒸気によって熱硬化性樹脂接着剤を加熱して湿気硬化させゴムチップ同士を接着固化させることを特徴とするものである。   In order to achieve the above object, the rubber chip molding and solidifying method according to claim 1 of the present invention uses a moisture-curing type thermosetting resin adhesive that reacts with moisture or saturated vapor in the air as a binder, and is cut into a predetermined size. The thermosetting resin adhesive is blended and kneaded in a predetermined ratio with the rubber chip, and the raw material kneaded product composed of the rubber chip and the thermosetting resin adhesive is removed from the cavity side mold and the core side mold formed into the product shape. The mold side cavity is filled, the core side mold is fitted to the cavity side mold, and pressure molding is performed. Saturated steam is removed from the peripheral surface excluding the bottom face of the cavity side mold and the bottom face of the core side mold. After feeding and heating the raw material kneaded material and the mold, saturated steam is fed from the bottom surface of the core side mold toward the peripheral surface excluding the bottom surface of the cavity side mold, and thermosetting is performed by the saturated steam. Moisture curing by heating resin adhesive It is characterized in that to the adhesive coated to each other rubber tip allowed.

また、本願発明の請求項2のゴムチップ成形固化装置は、製品形状にかたどられ底面側を除いて周面側に蒸気通過用小孔が設けられたキャビティ側金型と、上記キャビティ側金型に嵌合させることによりゴムチップと熱硬化性樹脂接着剤とからなる原料混練物を加圧して製品形状に成形させ底面側に蒸気通過用小孔が設けられたコア側金型と、飽和蒸気を上記キャビティ側金型及びコア側金型に供給する飽和蒸気供給手段と、を具備したことを特徴とするものである。   Further, the rubber chip molding and solidifying device according to claim 2 of the present invention comprises a cavity side mold having a shape of a product and provided with a small hole for passing a vapor on the peripheral surface side except for the bottom surface side, and the cavity side mold. A core-side mold having a small hole for passing a vapor on the bottom surface side by pressurizing a raw material kneaded material composed of a rubber chip and a thermosetting resin adhesive by fitting into the product shape, and saturated steam above And a saturated steam supply means for supplying the cavity side mold and the core side mold.

即ち、本発明のゴムチップ成形固化方法の場合は、先ず、粉砕したゴムチップと熱硬化性樹脂接着剤とを混練した原料混練物を、製品形状にかたどられたキャビティ側金型内に充填し、コア側金型をキャビティ側金型に嵌合して加圧成形される。続いて、上記金型のキャビティ及びコアの両側から飽和蒸気を送入して金型を両面加熱するとともに製品表面側となるキャビティ側金型の底面を除く原料混練物の周囲4面及び原料混練物の裏面となる壁面を加熱・湿気硬化して原料混練物の表面を反応固化させる。次に、上記コア側金型の底面から送入される飽和蒸気を原料混練物内へ送給して加熱した後、キャビティ側金型の底面を除く原料混練物の周囲4面からキャビティ側金型へ排気して上記熱硬化性樹脂接着剤を加熱・湿気硬化させ、各ゴムチップ同士を接着固化させる。これにより、製品表面側となる原料混練物の底面側表面に飽和蒸気が通過しないから、この表面の白濁化現象やスリット溝の凹凸模様が生じない。   That is, in the case of the rubber chip molding and solidifying method of the present invention, first, a raw material kneaded material obtained by kneading a crushed rubber chip and a thermosetting resin adhesive is filled into a cavity side mold shaped into a product shape, The side mold is fitted to the cavity side mold, and pressure molding is performed. Subsequently, saturated steam is fed from both sides of the cavity and the core of the mold to heat the mold on both sides, and at the same time, the four sides of the raw material kneaded material excluding the bottom surface of the cavity side mold on the product surface side and the raw material kneading The surface of the raw material kneaded product is reacted and solidified by heating and moisture curing the wall surface that is the back surface of the product. Next, after the saturated steam fed from the bottom surface of the core side mold is fed into the raw material kneaded material and heated, the cavity side metal mold is formed from the four surrounding surfaces of the raw material kneaded material excluding the bottom surface of the cavity side mold. It exhausts to a type | mold, the said thermosetting resin adhesive is heated and moisture-cured, and each rubber chip is adhere | attached and solidified. As a result, saturated steam does not pass through the bottom surface of the raw material kneaded material on the product surface side, so that the white turbidity phenomenon on the surface and the uneven pattern of the slit grooves do not occur.

また、本発明のゴムチップ成形固化装置の場合は、上記のゴムチップ成形固化方法を実施する装置であり、キャビティ側金型及びコア側金型とからなる金型において、上記コア側金型には原料混練物の裏面と接する壁面に蒸気通過用小孔から飽和蒸気が送給されるとともに、上記キャビティ側金型には製品表面側となる底面を除く原料混練物の周囲4面と接する壁面の蒸気通過用小孔から飽和蒸気が供給又は排気される。これにより、上記のゴムチップ成形固化方法を確実に実施できる。   In the case of the rubber chip molding and solidifying device of the present invention, the rubber chip molding and solidifying device is an apparatus for carrying out the above rubber chip molding and solidifying method. In the mold including the cavity side mold and the core side mold, the core side mold includes a raw material. Saturated steam is fed to the wall surface in contact with the back surface of the kneaded material from a small hole for passing steam, and the cavity-side mold has steam on the wall surface in contact with the surrounding four surfaces of the raw material kneaded material excluding the bottom surface on the product surface side. Saturated steam is supplied or exhausted from the small passage hole. Thereby, said rubber chip shaping | molding solidification method can be implemented reliably.

上記ゴムチップ成形固化方法によると、加工工数が少なく、ゴムチップ成形品の固化に要する時間・飽和蒸気量を大幅に短縮・削減することができ、生産性の向上と製品表面が白濁化されず、また、スリット溝の凹凸ができず外観の良好な製品ができる。また、上記ゴムチップ成形固化装置によると、ゴムチップ成形固化方法を、的確に実施することができ、ゴムチップ成形品の固化に要する時間・飽和飽和蒸気量を大幅に短縮・削減させられ、生産性の向上と製品表面の品質向上ができる。そして、より美麗な製品を作ることができる。   According to the rubber chip molding and solidifying method, the number of processing steps is small, the time required for solidifying the rubber chip molded product and the amount of saturated steam can be greatly shortened and reduced, the productivity is improved and the product surface is not clouded. As a result, a product with a good appearance can be obtained because the slit grooves are not uneven. Moreover, according to the rubber chip molding and solidifying apparatus, the rubber chip molding and solidifying method can be accurately performed, and the time required for solidifying the rubber chip molded product and the saturated saturated steam amount can be greatly shortened and reduced, thereby improving productivity. And the quality of the product surface can be improved. And you can make more beautiful products.

更に、ゴムチップの素材として廃タイヤ、工業ゴム製品の不良品又はバリとして除去された部分等を利用して、ゴム製ブロック、タイル、敷石、更には、各種のモニュメント品等として好適な製品を製造できるから、現在社会の問題となっている廃タイヤ等の再利用を図ることができ、資源の有効利用に資することができる。   Furthermore, by using waste tires, defective products of industrial rubber products, or parts removed as burrs, etc. as rubber chip materials, products suitable for rubber blocks, tiles, paving stones, and various monuments are manufactured. Therefore, it is possible to recycle waste tires and the like that are currently a problem of society, and contribute to effective use of resources.

以下、図1〜図5を参照して本発明の第1の実施の形態を説明する。図1はゴムチップ成形固化装置を模式的に示す断面図、図2はゴムチップ成形固化方法を示す処理工程図、図3〜図5はゴムチップ成形固化方法を示す作業工程図である。   Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a cross-sectional view schematically showing a rubber chip molding and solidifying apparatus, FIG. 2 is a process chart showing a rubber chip molding and solidifying method, and FIGS. 3 to 5 are work process charts showing a rubber chip molding and solidifying method.

本発明のゴムチップ成形固化装置100は、図1に示すように、ゴムチップ1と熱硬化性樹脂接着剤3とからなる原料混練物5を充填し製品形状に加圧形成するキャビティ側金型7及びコア側金型9とからなる。上記キャビティ側金型7及びコア側金型9には、外周壁10A,10Bと、原料混練物5を包囲する壁面7B・7C,9Aとの間に飽和蒸気Sや冷却エアE0を供給・排出する空間S1,S2が設けられている。上記キャビティ側金型7の原料混練物5の表面と接する壁面(底面7Bを除く周囲4面7C)及び原料混練物5の裏面と接するコア側金型9の壁面9Aにあけた多数の蒸気通過用孔hから加熱飽和蒸気Sを成形室S0内に充填した原料混練物5に供給し、且つ金型10外へ排出する飽和蒸気供給手段を備える。具体的には、キャビティ側金型7及びコア側金型9の外周壁10A,10Bには、各空間S1,S2内に飽和蒸気Sを送給する飽和蒸気送給弁V1,V2を備え、さらに排気弁V5,V6を備えている。また、排気弁V6には図示しない真空ポンプが接続されていて、排気弁V6を通じてキャビティ側金型7内を真空引きすることができるように構成されている。   As shown in FIG. 1, a rubber chip molding and solidifying apparatus 100 according to the present invention is filled with a raw material kneaded material 5 composed of a rubber chip 1 and a thermosetting resin adhesive 3 and press-formed into a product shape, and a cavity side mold 7 It consists of a core side mold 9. The cavity side mold 7 and the core side mold 9 are supplied and discharged with saturated steam S and cooling air E0 between the outer peripheral walls 10A, 10B and the wall surfaces 7B, 7C, 9A surrounding the raw material kneaded material 5. Spaces S1 and S2 are provided. A large number of vapor passages opened on the wall surface 9A of the cavity side mold 7 in contact with the surface of the raw material kneaded product 5 (peripheral four surfaces 7C excluding the bottom surface 7B) and the wall surface 9A of the core side mold 9 in contact with the back surface of the raw material kneaded product 5 A saturated steam supply means for supplying the heated saturated steam S from the hole h to the raw material kneaded material 5 filled in the molding chamber S0 and discharging it to the outside of the mold 10 is provided. Specifically, the outer peripheral walls 10A and 10B of the cavity side mold 7 and the core side mold 9 are provided with saturated steam supply valves V1 and V2 for supplying saturated steam S into the spaces S1 and S2, respectively. Further, exhaust valves V5 and V6 are provided. In addition, a vacuum pump (not shown) is connected to the exhaust valve V6 so that the cavity mold 7 can be evacuated through the exhaust valve V6.

しかして、上記キャビティ側金型7の原料混練物5と接する底面7B(製品の表面)を除く周囲4面7Cの蒸気通過用孔hから飽和蒸気Sを送給・排気可能としている。尚、キャビティ側金型7及びコア側金型9には相互に嵌合して加圧成形を行うための加圧手段を備えている。加圧手段の具体例としては図示しないプレス機がある。キャビティ側金型7内に原料混練物5を充填した後、プレス機の動作でコア側金型9をキャビティ側金型7内に嵌合させ所定の圧力で押圧成形した後、ロックする。これにより飽和蒸気の供給を受けても、蒸気の圧力に耐えて製品形状を維持した状態で加熱固化が実施される。   Accordingly, the saturated steam S can be fed and exhausted from the steam passage holes h on the peripheral four surfaces 7C excluding the bottom surface 7B (product surface) in contact with the raw material kneaded material 5 of the cavity side mold 7. Note that the cavity side mold 7 and the core side mold 9 are provided with a pressurizing means for fitting to each other and performing pressure molding. A specific example of the pressurizing means is a press machine (not shown). After filling the cavity-side mold 7 with the raw material kneaded material 5, the core-side mold 9 is fitted into the cavity-side mold 7 by the operation of a press machine, and is pressed with a predetermined pressure and then locked. Thereby, even if it receives supply of saturated steam, it heat-solidifies in the state which endured the pressure of steam and maintained the product shape.

本発明のゴムチップ成形固化方法は、上記ゴムチップ成形固化装置100を使用して実施するもので、以下その詳細を説明する。本発明のゴムチップ成形固化方法は、バインダーを構成する湿気硬化タイプの熱硬化性樹脂接着剤3としてポリウレタン系接着剤を採用している。このポリウレタン系接着剤と、廃タイヤ・工業ゴム製品の不良品又はバリを所定の大きさに裁断したゴムチップ1とを所定比率に配合して混練される。(必要により着色剤としての顔料を使用する場合もある。)
この原料混練物5を成形用の金型10のキャビティ側金型7内の成形室S0に充填して所定圧力で加圧成形した後、キャビティ側金型7内に飽和蒸気Sを送給し、この飽和蒸気によってポリウレタン系接着剤を加熱して湿気硬化させることによりゴムチップ1同士を接着固化し、これを乾燥後、金型10から取り出して完成品とするものである。
The rubber chip molding and solidifying method of the present invention is carried out using the rubber chip molding and solidifying apparatus 100, and the details thereof will be described below. The rubber chip molding and solidifying method of the present invention employs a polyurethane-based adhesive as the moisture-curable thermosetting resin adhesive 3 constituting the binder. The polyurethane adhesive and the rubber chips 1 obtained by cutting defective products or burrs of waste tires / industrial rubber products into a predetermined size are mixed at a predetermined ratio and kneaded. (If necessary, a pigment as a colorant may be used.)
The raw material kneaded product 5 is filled into the molding chamber S0 in the cavity-side mold 7 of the molding die 10 and subjected to pressure molding at a predetermined pressure, and then the saturated steam S is fed into the cavity-side mold 7. The polyurethane-based adhesive is heated and moisture-cured by this saturated steam to bond and solidify the rubber chips 1 together. After drying, the rubber chips 1 are taken out from the mold 10 to obtain a finished product.

次に、図2乃至図5を参照して上記本発明のゴムチップ成形固化装置を使用して行う本発明のゴムチップ成形固化方法について説明する。本発明のゴムチップ成形固化方法は、(A)混練工程と、(B)成形工程と、(C)加熱工程と、(D)加熱固化工程と、(E)乾燥工程とを備えることによって一例として構成されている。   Next, the rubber chip molding and solidifying method of the present invention performed using the rubber chip molding and solidifying apparatus of the present invention will be described with reference to FIGS. As an example, the rubber chip molding and solidifying method of the present invention includes (A) a kneading step, (B) a molding step, (C) a heating step, (D) a heating and solidifying step, and (E) a drying step. It is configured.

(A)混練工程
まず、混練工程(A)であるが、廃タイヤを1〜2mm程度の大きさに細かく裁断したゴムチップと、バインダーとしてのポリウレタン系接着剤とを所定の比率で配合して混ぜ合わせる工程である。(必要により着色剤としての顔料を使用する場合もある。)混ぜ合わせるための混練装置としては、例えば、周知のモルタル用ミキサーを利用することができる。上記混練工程の各材料の具体的な配合量と処理条件例を次に示す。
(A) Kneading step First, in the kneading step (A), a rubber chip obtained by finely cutting a waste tire into a size of about 1 to 2 mm and a polyurethane adhesive as a binder are blended in a predetermined ratio. It is a process of combining. (If necessary, a pigment as a colorant may be used.) As a kneading apparatus for mixing, for example, a known mortar mixer can be used. Specific blending amounts and processing condition examples of the respective materials in the kneading process are shown below.

ゴムチップ(廃タイヤ):13.5kg、ポリウレタン系接着剤
:0.8〜1.1kg(製品名「タケネートF−188P」、三井化学ポリウレタン株式会社製)、着色用顔料 :0.4〜0.8kg:混練時間 :15〜20分
Rubber chip (waste tire): 13.5 kg, polyurethane adhesive: 0.8-1.1 kg (product name “Takenate F-188P”, manufactured by Mitsui Chemicals Polyurethanes Co., Ltd.), coloring pigment: 0.4-0. 8kg: Kneading time: 15-20 minutes

(B)成形工程
成形工程(B)は、上記混練工程(A)で得られた原料混練物をキャビティ側金型7内に所定量充填し、コア側金型9側を被せてプレス機で圧縮してロックした後、キャビティ側金型内に飽和蒸気を送り込むことにより、原材料中のポリウレタン系接着剤を硬化させてゴムチップ同士を接着し、立方体状の成形品を成形するものである。上記成形工程における具体的な成形条件例を次に示す。
(B) Molding step In the molding step (B), a predetermined amount of the raw material kneaded product obtained in the kneading step (A) is filled into the cavity side mold 7, and the core side mold 9 side is covered with a press machine. After being compressed and locked, saturated steam is sent into the cavity side mold to cure the polyurethane adhesive in the raw material and bond the rubber chips to each other to form a cube-shaped molded product. Examples of specific molding conditions in the molding step will be shown below.

キャビティ側金型容積:25.0リットル、原料混練物量:13.5kg(見かけ比重約0.52、容積約26.0リットル)、硬化方法
:飽和蒸気温度 :110〜120℃、飽和蒸気圧力 :0.15〜0.2MPa、加熱時間 :30〜60秒
Cavity side mold volume: 25.0 liters, amount of raw material kneaded material: 13.5 kg (apparent specific gravity of about 0.52, volume of about 26.0 liters), curing method: saturated steam temperature: 110 to 120 ° C., saturated steam pressure: 0.15-0.2 MPa, heating time: 30-60 seconds

上記成形工程(B)では、最初に、下側のキャビティ側金型7と上側のコア側金型9を分離し、上記混練工程(A)で得られた原料混練物5を下側のキャビティ側金型7内に所定量充填する。例えば、キャビティ側金型容積が25.0リットルの場合、原料混練物5を約13.5kg(見かけ比重約0.52、容積約26.0リットル)充填する。次に、コア側金型9をキャビティ側金型7の上側に嵌合し、図示しないプレス機などを用いてキャビティ側金型7に向けて押圧し、この状態でキャビティ側金型7とコア側金型9をロックする。これによって、混練原料5は金型10のキャビティ側金型7とコア側金型9との間に形成されるキャビティ側金型3内に加圧成形された状態で充填される。   In the molding step (B), first, the lower cavity side die 7 and the upper core side die 9 are separated, and the raw material kneaded product 5 obtained in the kneading step (A) is used as the lower cavity. A predetermined amount is filled in the side mold 7. For example, when the cavity mold volume is 25.0 liters, the raw material kneaded material 5 is filled with about 13.5 kg (apparent specific gravity about 0.52 and volume about 26.0 liters). Next, the core-side mold 9 is fitted to the upper side of the cavity-side mold 7 and pressed toward the cavity-side mold 7 by using a press machine (not shown) or the like. In this state, the cavity-side mold 7 and the core are pressed. The side mold 9 is locked. Thereby, the kneading raw material 5 is filled in the cavity-side mold 3 formed between the cavity-side mold 7 and the core-side mold 9 of the mold 10 in a pressure-molded state.

(C)加熱工程
加熱工程(C)では、飽和蒸気をキャビティ側金型の底面を除く周面及びコア側金型の底面から送入して原料混練物と金型とを加熱する。使用する飽和蒸気温度は110〜120℃、飽和蒸気圧力は0.15〜0.2MPa程度が好ましい。図3に示すように、キャビティ側金型7及びコア側金型9の両側における蒸気通過用小孔hから飽和蒸気Sを送入して加熱し温めるとともに、製品表面側となるキャビティ側金型底面7Bを除く原料混練物5の表面5面(側面7Cの4面とコア側金型9の壁面9Aの5面)を加熱して反応固化させるものである。尚、この場合、排気弁V5,V6を開として蒸気を自然排気する。
(C) Heating step In the heating step (C), saturated vapor is fed from the peripheral surface excluding the bottom surface of the cavity side mold and the bottom surface of the core side mold to heat the raw material kneaded material and the mold. The saturated steam temperature to be used is preferably 110 to 120 ° C., and the saturated steam pressure is preferably about 0.15 to 0.2 MPa. As shown in FIG. 3, the saturated steam S is fed from the steam passage small holes h on both sides of the cavity side mold 7 and the core side mold 9, heated and heated, and the cavity side mold on the product surface side 5 surfaces (4 surfaces of the side surface 7C and 5 surfaces of the wall surface 9A of the core side mold 9) of the raw material kneaded material 5 excluding the bottom surface 7B are heated and reacted and solidified. In this case, the steam is naturally exhausted by opening the exhaust valves V5 and V6.

(D)加熱固化工程
次に、加熱固化工程(D)を行う。図4に示すように、上記コア側金型9の壁面9Aの蒸気通過用小孔h側から飽和蒸気Sを原料混練物5内へ送給して加熱し、キャビティ側金型底面7Bを除く側面7Cの4面からキャビティ側金型7側の空間S2内に飽和蒸気Sを排気することで、キャビティ側金型内に圧縮充填されている原料混練物5の内部隙間に飽和蒸気を一方向的に通過させて熱が浸透し、上記熱硬化性樹脂接着剤3を効率良く加熱・湿気硬化させ、ゴムチップ1同士を接着固化させる。尚、この場合、排気弁V5,V6を開として蒸気を自然排気する。
上記飽和蒸気Sは、コア側金型9の壁面9Aから製品表面側となるキャビティ側金型底面7Bを除く原料混練物5の表面(側面7Cの4面)を通過するから、キャビティ側金型底面7Bに面する製品表面に白濁化現象が起こらず、また、スリット溝もないことからその凹凸が製品表面に出ることがなく、綺麗な仕上げ面となる。
(D) Heat solidification process Next, a heat solidification process (D) is performed. As shown in FIG. 4, the saturated steam S is fed into the raw material kneaded material 5 from the steam passage small hole h side of the wall surface 9A of the core mold 9 and heated to remove the cavity mold bottom 7B. By evacuating the saturated steam S from the four surfaces of the side surface 7C into the space S2 on the cavity side mold 7 side, the saturated steam is unidirectionally introduced into the internal gap of the raw material kneaded material 5 compressed and filled in the cavity side mold. The heat is permeated and the heat curable resin adhesive 3 is efficiently heated and moisture cured, and the rubber chips 1 are bonded and solidified. In this case, the steam is naturally exhausted by opening the exhaust valves V5 and V6.
Since the saturated steam S passes through the surface of the raw material kneaded material 5 (four sides of the side surface 7C) excluding the cavity side mold bottom surface 7B which is the product surface side from the wall surface 9A of the core side mold 9, the cavity side mold The product surface facing the bottom surface 7B does not cause white turbidity, and since there is no slit groove, the unevenness does not appear on the product surface, resulting in a beautiful finished surface.

(E)乾燥工程
乾燥工程(E)は、上記成形加工時に冷やされて水分となって成形品内に残っている水蒸気を速やかに外部へ除去するとともに、成形品の温度を下げることによってバインダーとしての接着作用をより完全にするための処理である。この乾燥方法は、自然乾燥、強制乾燥、真空乾燥などの周知の方法を採用することができる。本実施の形態の場恣意は、図5に示すように、排気弁V5を開として蒸気を自然排気するとともに、排気弁V6を開とし、真空ポンプを作動させて真空引きする。これによって、キャビティ側金型7内の成形品が乾燥ならびに冷却され、成形品内部に水分となって止まっている飽和蒸気がすべて除去されるとともに、冷却によってゴムチップ同士の接着がより完全なものとなる。
この乾燥工程の後、加熱固化した成形品をキャビティ側金型7から取り出してゴムチップ成形品とするものである。上記ゴムチップ成形品は、ゴムチップ同士の内部融着が良好であり、所望の強度を有しており、表面は白濁化せず、スリット溝の凹凸もなく平滑に仕上げられた高品質な成形品となるものである。
(E) Drying step The drying step (E) is a cooling agent that is cooled during the molding process to form moisture and quickly removes water vapor remaining in the molded product to the outside, and lowers the temperature of the molded product as a binder. This is a process for making the adhesive action of this more complete. As this drying method, a known method such as natural drying, forced drying, or vacuum drying can be employed. As shown in FIG. 5, the concept of this embodiment is that the exhaust valve V5 is opened to naturally exhaust the steam, and the exhaust valve V6 is opened, and the vacuum pump is operated to evacuate. As a result, the molded product in the cavity-side mold 7 is dried and cooled, and all of the saturated vapor that remains as moisture in the molded product is removed, and the adhesion between the rubber chips is more complete by cooling. Become.
After this drying step, the molded product heated and solidified is taken out from the cavity side mold 7 to be a rubber chip molded product. The above-mentioned rubber chip molded article has a good internal fusion between the rubber chips, has a desired strength, the surface does not become clouded, and has a high quality molded article finished smoothly without irregularities in the slit groove. It will be.

ここで、上記従来方法と比較した本発明方法の特徴点は、
(1)加熱工程が4工程から2工程に減少される。この減少により、成形固化時間の短縮化が図れる。
(2)製品表面に相当する部分に飽和蒸気を通す小孔が無いから、バインダーの白濁化現象が起こらず、製品品質が高められる。
(3)成形固化時間が短縮する。
点にある。
ここで500×500×50t、4個取りの製品を成形固化した時の加熱時間を比較する。
従来方法 金型加熱時間・・・45秒
正一方加熱時間・・15秒
逆一方加熱時間・・15秒
両面加熱時間・・・60秒
保熱時間・・・・・60秒 合計195秒
本発明方法 両面加熱時間・・・40秒
一方加熱時間・・・30秒
保熱時間・・・・・60秒 合計130秒
従って、本発明方法によると、65秒の短縮が図れる。
Here, the features of the method of the present invention compared to the above conventional method are as follows:
(1) The heating process is reduced from 4 processes to 2 processes. By this reduction, the molding solidification time can be shortened.
(2) Since there is no small hole through which saturated vapor passes in the portion corresponding to the product surface, the whitening phenomenon of the binder does not occur and the product quality is improved.
(3) The molding solidification time is shortened.
In the point.
Here, 500 × 500 × 50 t, and the heating time when a four-piece product is molded and solidified will be compared.
Conventional method Mold heating time: 45 seconds
Regular heating time: 15 seconds
Reverse one-side heating time 15 seconds
Double-sided heating time: 60 seconds
Heat retention time ... 60 seconds Total 195 seconds Method of the present invention Double-side heating time ... 40 seconds
Heating time ... 30 seconds
Heat retention time 60 seconds Total 130 seconds Therefore, according to the method of the present invention, 65 seconds can be shortened.

上記加熱工程の減少による飽和蒸気使用量を比較する。
従来方法 飽和蒸気圧力・・・0.2MPa
使用量・・・・・・12Kg
本発明方法 飽和蒸気圧力・・・0.25MPa
使用量・・・・・・8.0Kg
従って、本発明方法によると、4Kgの減少が図れる。
Compare the amount of saturated steam used due to the decrease in the heating process.
Conventional method Saturated steam pressure: 0.2 MPa
Amount used 12kg
Method of the present invention Saturated steam pressure ... 0.25 MPa
Amount used: 8.0kg
Therefore, according to the method of the present invention, 4 Kg can be reduced.

以上本実施の形態によると次のような効果を奏することができる。まず、上記ゴムチップ成形固化方法によると、加工工数が少なく、ゴムチップ成形品の固化に要する時間・飽和蒸気量を大幅に短縮・削減することができ、生産性の向上と製品表面が白濁化されず、また、スリット溝の凹凸ができず外観の良好な製品ができる。また、上記ゴムチップ成形固化装置によると、ゴムチップ成形固化方法を、的確に実施することができ、ゴムチップ成形品の固化に要する時間・飽和蒸気量を大幅に短縮・削減させられ、生産性の向上と製品表面の品質向上ができる。そして、より美麗な製品を作ることができる。   As described above, according to the present embodiment, the following effects can be obtained. First, according to the rubber chip molding and solidification method, the number of processing steps is small, the time required for solidification of the rubber chip molded product and the amount of saturated steam can be greatly shortened and reduced, improving productivity and preventing the product surface from becoming clouded. In addition, the slit groove is not uneven, and a product having a good appearance can be obtained. Further, according to the rubber chip molding and solidifying device, the rubber chip molding and solidifying method can be accurately performed, and the time and saturation steam required for solidifying the rubber chip molded product can be greatly shortened and reduced, thereby improving productivity. The quality of the product surface can be improved. And you can make more beautiful products.

更には、ゴムチップの素材として廃タイヤ、工業ゴム製品の不良品又はバリとして除去された部分等を利用して、ゴム製ブロック、タイル、敷石、各種のモニュメント品等の好適な製品を製造できるから、現在社会問題となっている廃タイヤ等の再利用を図ることができ、資源の有効利用に資することができる。   Furthermore, it is possible to manufacture suitable products such as rubber blocks, tiles, paving stones, and various monuments using waste tires, defective products of industrial rubber products, or parts removed as burrs as rubber chip materials. Therefore, it is possible to reuse waste tires and the like, which are currently a social problem, and contribute to effective use of resources.

尚、本発明のゴムチップ成形固化装置を使用することによって実行されるゴムチップ成形固化方法は上記の実施の形態のものに限定されず、その発明の要旨内での設計変更が可能である。例えば、本発明は、ゴムチップ1の原材料として廃タイヤを使用したが、細かく裁断可能であれば、廃タイヤだけに限らず他のゴム製品であっても利用できるものである。また、着色用の顔料は必要に応じて添加すればよい。そして、上記実施の形態では、バインダーとしてポリウレタン系接着剤を用いた場合について例示したが、これに限定されるものではなく、空気中の水分または飽和蒸気と反応する湿気硬化タイプの熱硬化性樹脂接着剤であれば利用可能である。   The rubber chip molding and solidifying method executed by using the rubber chip molding and solidifying apparatus of the present invention is not limited to the above-described embodiment, and the design can be changed within the gist of the invention. For example, although the present invention uses a waste tire as a raw material of the rubber chip 1, as long as it can be cut finely, it can be used not only for a waste tire but also for other rubber products. Further, a coloring pigment may be added as necessary. And in the said embodiment, although illustrated about the case where a polyurethane-type adhesive was used as a binder, it is not limited to this, The moisture hardening type thermosetting resin which reacts with the water | moisture content or saturated vapor | steam in air. Any adhesive can be used.

本発明のゴムチップ成形固化方法とゴムチップ成形固化装置は、廃タイヤ、工業ゴム製品の不良品又はバリとして除去された部分等を利用したゴム製ブロック、タイル、敷石、各種のモニュメント品等の製品の製造や新規なゴム素材を原料にした同種の製品の製造に利用可能性を有する。   The rubber chip molding and solidifying method and the rubber chip molding and solidifying apparatus of the present invention are used for products such as waste tires, defective products of industrial rubber products or parts removed as burrs, rubber blocks, tiles, paving stones, various monument products, etc. It has the potential to be used for manufacturing and manufacturing similar products made from new rubber materials.

本発明の第1実施の形態を示し、ゴムチップ成形固化装置の断面図である。1 is a cross-sectional view of a rubber chip molding and solidifying device according to a first embodiment of the present invention. 本発明の第1実施の形態を示し、ゴムチップ成形固化方法の処理工程図である。FIG. 2 is a process diagram of a rubber chip molding and solidifying method according to the first embodiment of the present invention. 本発明の第1実施の形態を示し、加熱工程の説明図である。FIG. 3 is a diagram illustrating a heating process according to the first embodiment of this invention. 本発明の第1実施の形態を示し、加熱固化工程の説明図である。1 is a diagram illustrating a heat solidification step according to a first embodiment of the present invention. FIG. 本発明の第1実施の形態を示し、乾燥工程の説明図である。FIG. 3 is a diagram illustrating a drying process according to the first embodiment of this invention.

符号の説明Explanation of symbols

1 ゴムチップ
3 熱硬化性樹脂接着剤
5 原料混練物
7 キャビティ側金型
7A 壁面
7B 底面
7C,9A 壁面
9 コア側金型
10A,10B 外周壁
100 ゴムチップ成形固化装置
A 混練工程
B 成形工程
C 加熱工程
D 加熱固化工程
E 乾燥工程
E0 冷却エア
h 蒸気通過用小孔
S 飽和蒸気
S1,S2 空間
S0 成形室
V1,V2 飽和蒸気送給弁
V5,V6 排気弁
DESCRIPTION OF SYMBOLS 1 Rubber chip 3 Thermosetting resin adhesive 5 Raw material kneaded material 7 Cavity side metal mold 7A Wall surface 7B Bottom surface 7C, 9A Wall surface 9 Core side metal mold 10A, 10B Outer peripheral wall 100 Rubber chip molding solidification apparatus A Kneading process B Molding process C Heating process D Heat solidification process E Drying process E0 Cooling air h Small hole for passing steam S Saturated steam S1, S2 Space S0 Molding chamber V1, V2 Saturated steam feed valve V5, V6 Exhaust valve

Claims (2)

空気中の水分または飽和蒸気と反応する湿気硬化タイプの熱硬化性樹脂接着剤をバインダーとして用い、所定大きさに裁断したゴムチップに該熱硬化性樹脂接着剤を所定比率で配合・混練し、該ゴムチップと熱硬化性樹脂接着剤とからなる原料混練物を製品形状にかたどられたキャビティ側金型及びコア側金型からなる金型のキャビティ内に充填し、コア側金型をキャビティ側金型に嵌合して加圧成形し、飽和蒸気をキャビティ側金型の底面を除く周面及びコア側金型の底面から送入して原料混練物と金型とを加熱した後、飽和蒸気をコア側金型の底面からキャビティ側金型の底面を除く周面に向けて送給し、該飽和蒸気によって熱硬化性樹脂接着剤を加熱して湿気硬化させゴムチップ同士を接着固化させることを特徴とするゴムチップ成形固化方法。   Using a moisture curing type thermosetting resin adhesive that reacts with moisture or saturated steam in the air as a binder, the thermosetting resin adhesive is blended and kneaded in a predetermined ratio into a rubber chip cut into a predetermined size, The raw material kneaded product composed of rubber chip and thermosetting resin adhesive is filled into the cavity of the mold composed of the cavity side mold and the core side mold shaped into the product shape, and the core side mold is filled with the cavity side mold. The saturated steam is fed from the peripheral surface excluding the bottom surface of the cavity side mold and the bottom surface of the core side mold to heat the raw material kneaded material and the mold, It is fed from the bottom surface of the core side mold toward the peripheral surface excluding the bottom surface of the cavity side mold, and the thermosetting resin adhesive is heated by the saturated vapor to be moisture-cured so that the rubber chips are bonded and solidified. Rubber chip molding Method of. 製品形状にかたどられ底面側を除いて周面側に蒸気通過用小孔が設けられたキャビティ側金型と、上記キャビティ側金型に嵌合させることによりゴムチップと熱硬化性樹脂接着剤とからなる原料混練物を加圧して製品形状に成形させ底面側に蒸気通過用小孔が設けられたコア側金型と、飽和蒸気を上記キャビティ側金型及びコア側金型に供給する飽和蒸気供給手段と、を具備したことを特徴とするゴムチップ成形固化装置。   Cavity side mold with a small hole for passing steam on the peripheral surface side except for the bottom side, modeled on the product shape, and rubber chip and thermosetting resin adhesive by fitting into the cavity side mold A raw material kneaded product to be molded into a product shape, a core side mold provided with small holes for passing steam on the bottom side, and saturated steam supply for supplying saturated steam to the cavity side mold and the core side mold And a rubber chip forming and solidifying device.
JP2008107432A 2008-04-17 2008-04-17 Rubber chip shaping solidifying method and rubber chip shaping solidifying equipment Pending JP2009255401A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013063524A (en) * 2011-09-15 2013-04-11 Yamashita Kiko Kk Sheet material heating device
CN108943490A (en) * 2018-06-08 2018-12-07 国宏中晶(北京)科技发展有限公司 A kind of reinforced multiaxial type shearing-crushing device and method of waste tire
IT201800010467A1 (en) * 2018-11-20 2020-05-20 Fabrizio Zuanetti HIGH CAPILLARITY VESSEL

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013063524A (en) * 2011-09-15 2013-04-11 Yamashita Kiko Kk Sheet material heating device
CN108943490A (en) * 2018-06-08 2018-12-07 国宏中晶(北京)科技发展有限公司 A kind of reinforced multiaxial type shearing-crushing device and method of waste tire
IT201800010467A1 (en) * 2018-11-20 2020-05-20 Fabrizio Zuanetti HIGH CAPILLARITY VESSEL

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