JPS6189022A - Manufacture of rubber molding wherein two or more different rubber materials are joined - Google Patents

Manufacture of rubber molding wherein two or more different rubber materials are joined

Info

Publication number
JPS6189022A
JPS6189022A JP59212130A JP21213084A JPS6189022A JP S6189022 A JPS6189022 A JP S6189022A JP 59212130 A JP59212130 A JP 59212130A JP 21213084 A JP21213084 A JP 21213084A JP S6189022 A JPS6189022 A JP S6189022A
Authority
JP
Japan
Prior art keywords
rubber
silicone rubber
vulcanizing
molded product
vulcanization
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.)
Granted
Application number
JP59212130A
Other languages
Japanese (ja)
Other versions
JPH0211413B2 (en
Inventor
Makoto Sawara
佐原　眞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nissei Electric Co Ltd
Original Assignee
Nissei Electric Co Ltd
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 Nissei Electric Co Ltd filed Critical Nissei Electric Co Ltd
Priority to JP59212130A priority Critical patent/JPS6189022A/en
Publication of JPS6189022A publication Critical patent/JPS6189022A/en
Publication of JPH0211413B2 publication Critical patent/JPH0211413B2/ja
Granted legal-status Critical Current

Links

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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07—Flat, e.g. panels

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To make it possible to produce the titled item in a single stage even if the item is elongate or has a hollow section, by injecting two or more different plasticized rubber materials simultaneously from a single discharge port followed by vulcanizing. CONSTITUTION:A plasticized electrically conductive silicone rubber is extruded via a nozzle 13. On the other hand, a plasticized insulating silicone rubber is extruded from a nozzle 17. The nozzles 13, 17 of extruders 11, 15 are joined, and the rubber molded item B molded in a mold 19 is vulcanized by a hot gas. A vulcanizer and an adhesion accelerator are added to the insulating silicone rubber and the electrically conductive silicone rubber. The adhesion accelerator makes the adhesion between the insulating part B1 and a conductive part B2 of the rubber molded item B favorable thereby preventing the peeling at the joined surfaces. In the vulcanizing step, the vulcanizing temperature in a first vulcanizing oven is 240-350 deg.C, and an amount of heat of 130 deg.CX10min is applied to the molded body in a second vulcanizing oven until it comes to the middle point of the oven, and thereafter it is heated to 130 deg.C or over.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、二種以上のゴム材を接合したゴム材成形品
（以下、「ゴム材成形品」と記す）の新規な製造方法に
関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a novel method for manufacturing a rubber molded product (hereinafter referred to as a "rubber molded product") in which two or more types of rubber materials are bonded together.

〔従来技術〕[Prior art]

従来において、ゴム材成形品（第４図参照）Ａは、可塑
化された一方のゴム材料を第一金型で加圧成形し、この
第一金型の成形品Ｂ１を可塑化された他方のゴム材料と
共に第二金型に入れ、この第二金型によって加圧成形し
ながら他の成形品Ｂ２と結合一体化することにより製造
されていた。Conventionally, a rubber material molded product (see Fig. 4) A is produced by pressure-molding one plasticized rubber material in a first mold, and molding the molded product B1 of this first mold into the other plasticized rubber material. The molded product B2 was put into a second mold together with a rubber material, and the molded product B2 was combined and integrated with another molded product B2 while being press-molded using the second mold.

しかし、かかる従来の方法では、 （１１プレス成形を１回必要とするため、即ち、製造に
あたって二工程かかるため製造に手間がかかる、 （２）長尺物や、中空部のあるものは製造しにくい、と
いう不都合を有した。However, such conventional methods require (11) one press molding process, which requires two steps, and are therefore time-consuming to manufacture; (2) long items or items with hollow parts cannot be manufactured; It had the disadvantage that it was difficult to use.

〔発明の目的〕[Purpose of the invention]

この発明はかかる状況に基づいて成されたものであり、
その目的は、一工程でできると共に長尺物や中空部のあ
るものでも製造しやすい、二種以上のゴム材を接合した
ゴム材成形品の製造方法を提供することである。This invention was made based on this situation,
The purpose is to provide a method for manufacturing a rubber molded product made by bonding two or more rubber materials together, which can be done in one step and is easy to manufacture even long products or products with hollow parts.

〔発明の構成〕[Structure of the invention]

そして、この目的は、二種以上の可塑化されたゴム材を
同時に唯一の吐出孔から射出し、その後、加硫すること
により達成された。This objective was achieved by simultaneously injecting two or more plasticized rubber materials through a single discharge hole and then vulcanizing them.

Ｃ実施例の説明〕 以下図面に基づいてこの発明の詳細な説明する。Description of Example C] The present invention will be described in detail below based on the drawings.

まず、第１〜３図においてこの発明方法に使用する製造
装置を説明する。First, the manufacturing apparatus used in the method of this invention will be explained with reference to FIGS. 1 to 3.

第１図において、ＩＩはゴム材押し出し機であり、可塑
化された導電性シリコーンゴムをノズル１３を介して押
し出す。又、１５もゴム材押し出し機であるが、こちら
は可塑化された絶縁性シリコーンゴムをノズル１７を介
して押し出す。１９は押し出し金型であり、前記押し出
し機１１．１５の各々のノズル１３．１７がつながれて
いる。なお、２１は第１加硫炉、２３は第２加硫炉であ
り、かかる金型１９で成形されたゴム成形品Ｂ（なま作
り）を熱気加硫（第一次加硫）するものである。In FIG. 1, reference numeral II denotes a rubber material extruder, which extrudes plasticized conductive silicone rubber through a nozzle 13. Further, 15 is also a rubber extruder, which extrudes plasticized insulating silicone rubber through a nozzle 17. 19 is an extrusion mold, to which each nozzle 13.17 of the extruder 11.15 is connected. In addition, 21 is a first vulcanizing furnace, and 23 is a second vulcanizing furnace, which performs hot air vulcanization (primary vulcanization) of the rubber molded product B (green) molded in the mold 19. It is.

次に第２図および第３図に基づいて、押し出し金型１９
を詳述する。Next, based on FIGS. 2 and 3, the extrusion mold 19
details.

押し出し金型１９は、互いに重ねられた上型１９ａと下
型１９ｂとホルダー１９ｃとを有する。このホルダー１
９ｃは金型１９の下部を構成し、前記ノズル１７を螺着
した状態で保持する。２５は小型孔であり下型１９ｂに
形成されている。この小型孔２５にはノズル１７から供
給された絶縁性シリコーンゴムが通過してゴム材成形品
Ｂの絶縁部Ｂ１の断面形状を成形する。又、２７は供給
溝であり下型１９ｂの上面に形成されている。そして、
この供給溝２７と上型１９ａの下面によって供給孔２７
ａが形成される。□この供給孔２７ａは金型１７の横方
向に開口しており、この開口にはノズル１３が螺着され
ている。次に、２９は大型孔であり、上型１９ａに形成
されている。この大型孔２９は下型１９ｂの小型孔２５
と連通しているがその断面積は小型孔２５よりも大きい
ものである（但し、小型孔２５の２倍以下である）。そ
して、この大型孔２９には、下型１９ｂの小型孔２５で
成形されたゴム材成形品Ｂの絶縁部Ｂ１と共に供給孔２
７ａから侵入してきた導電性シリコーンゴム（可塑化さ
れたもの）が通過してゴム材成形品Ｂの絶縁部Ｂ１と導
電部Ｂ２とが接合された断面形状を成形する。なお、前
記した下型１９ｂの小型孔２５および上型１９ａの大型
孔２９はこの発明の吐出孔に相当する。The extrusion die 19 includes an upper die 19a, a lower die 19b, and a holder 19c which are stacked on top of each other. This holder 1
9c constitutes the lower part of the mold 19, and holds the nozzle 17 in a screwed state. A small hole 25 is formed in the lower die 19b. The insulating silicone rubber supplied from the nozzle 17 passes through the small hole 25 to form the cross-sectional shape of the insulating portion B1 of the rubber molded product B. Further, 27 is a supply groove, which is formed on the upper surface of the lower mold 19b. and,
The supply hole 27 is formed by this supply groove 27 and the lower surface of the upper die 19a.
a is formed. □This supply hole 27a opens in the lateral direction of the mold 17, and the nozzle 13 is screwed into this opening. Next, 29 is a large hole, which is formed in the upper die 19a. This large hole 29 is the small hole 25 of the lower die 19b.
, but its cross-sectional area is larger than the small hole 25 (however, it is less than twice that of the small hole 25). The large hole 29 has a supply hole 2 along with the insulating part B1 of the rubber molded product B formed by the small hole 25 of the lower mold 19b.
The conductive silicone rubber (plasticized) entering from 7a passes through and forms a cross-sectional shape in which the insulating part B1 and the conductive part B2 of the rubber molded product B are joined. The small holes 25 of the lower mold 19b and the large holes 29 of the upper mold 19a described above correspond to the discharge holes of the present invention.

次に、この実施例で使用された絶縁性シリコーンゴム及
び導電性シリコーンゴム、並びに加硫化工程について詳
述する。Next, the insulating silicone rubber and conductive silicone rubber used in this example and the vulcanization process will be described in detail.

（１）　　絶縁性シリコーンゴム、導電性シリコーンゴ
絶縁性シリコーンゴムおよび導電性シリコーンゴムには
、加硫剤（絶縁性シリコーンゴムにあっては過酸化物加
硫剤又は付加型加硫剤、導電性シリコーンゴムにあって
は付加型加硫剤）と接着促進剤を加える。接着促進剤は
、前記ゴム材成形品Ｂの絶縁部Ｂ１と導電部Ｂ２との接
合性を良くして接合面での剥離を防ぐために添加される
ものである。(1) Insulating silicone rubber, conductive silicone rubber. For silicone rubber, add an addition type vulcanizing agent) and an adhesion promoter. The adhesion promoter is added in order to improve the bonding property between the insulating part B1 and the conductive part B2 of the rubber molded product B and to prevent peeling at the joint surface.

（２）−欠如硫化工程 第一加硫炉での加硫温度は２４０〜３５０℃である。ま
た、第二加硫炉においては途中までは１３０℃×１０分
間の熱量を加え、それ以後は１３０°Ｃ以上で行う。こ
のように温度を変えて加硫を行うのは、絶縁性シリコー
ンゴムと導電性シリコーンゴムとの接合面での宛名現象
、剥雛現象を防ぐためである。(2) - Deficient sulfurization step The vulcanization temperature in the first vulcanization furnace is 240 to 350°C. Further, in the second vulcanization furnace, heat is applied at 130° C. for 10 minutes up to the middle, and thereafter the temperature is 130° C. or higher. The reason why vulcanization is carried out at different temperatures in this manner is to prevent the vulcanization phenomenon and peeling phenomenon at the bonding surface between the insulating silicone rubber and the conductive silicone rubber.

なお、！１！！縁性シリコーンゴムと導電性シリコーン
ゴムとの両方に付加型加硫剤が添加されている場合は、
第一加硫炉で一次加硫化工程を終了する。In addition,! 1! ! If an addition type vulcanizing agent is added to both the edge silicone rubber and the conductive silicone rubber,
The primary vulcanization process is completed in the first vulcanization furnace.

（３）二次加硫化工程 熱気循環型のオーブンを用いてハソジ式とする。加熱条
件としては、２００℃×４〜６時間行う。(3) Secondary vulcanization process A hot air circulation type oven is used to perform the secondary vulcanization process. The heating conditions are 200° C. for 4 to 6 hours.

二次加硫の目的は、 ■　接着促進剤を活性化させて、絶縁性シリコーンゴム
と導電性シリコーンゴムとの接着をより強くするためで
ある。なお、この実施例にあっては、接合面の引張荷重
は絶縁性シリコーンゴム部および導電性シリコーンゴム
部の引張荷重よりも大きいものである。The purpose of the secondary vulcanization is: (1) Activating the adhesion promoter to strengthen the adhesion between the insulating silicone rubber and the conductive silicone rubber. In this example, the tensile load on the joint surface is greater than the tensile load on the insulating silicone rubber portion and the conductive silicone rubber portion.

■　シリコーンゴムに含まれる低分子シロキサン、およ
び過酸化物加硫剤の分解残渣を除去してゴム材成形品Ｂ
の物性を安定させるためである。■ Rubber molded product B by removing low molecular weight siloxane contained in silicone rubber and decomposition residue of peroxide vulcanizing agent.
This is to stabilize the physical properties of.

〔発明の効果〕〔Effect of the invention〕

この発明に係る、二種以上のゴム材を接合したゴム材成
形品の製造方法は、二種以上の可塑化されたゴム材を同
時に唯一の吐出孔から射出し、その後、加硫するもので
ある。The method of manufacturing a rubber molded product in which two or more types of rubber materials are bonded together according to the present invention involves simultaneously injecting two or more types of plasticized rubber materials from a single discharge hole, and then vulcanizing them. be.

このため、従来の方法と異なり、二種以上のゴム材を互
いに接合したゴム材成形品が一工程でできると共に長尺
物や中空部のあるものでも容易に製造できる。Therefore, unlike conventional methods, a rubber molded product in which two or more types of rubber materials are bonded to each other can be produced in one step, and even long products or products with hollow parts can be easily manufactured.

【図面の簡単な説明】[Brief explanation of drawings]

第１図から３図はこの発明に係る、二種以上のゴム材を
接合したゴム材成形品の製造装置を示すものであり、第
１図は装置説明図、第２図は第１図における■部拡大図
、第３図は第２図における■−■線断面図、また、第４
図はこの発明方法により製造されるゴム材成形品の断面
図である。 ２５．２９・・・吐出孔 （２５・・・下型の小型孔、 ２９・・・上型の大型孔） 第２図 第３図 第４図 Ｂ。 手続補正書動式） ％式％ ２、発明の名称　　　二種以上のゴム材を接合したゴム
材成形品の製造方法 ３、補正をする者 事件との関係　　　特許出願人 住所　　　静岡県浜名郡雄踏町宇布見４２５１名称　　
　日星電気株式会社 代表者　絵本　五− ４、代理人　　〒４３０ 静岡県浜松市元城町１１５番地の１４ （小石ビル） ′１２、 （８３５３）弁理士　野末　活用　ノ　　、二１１１．
　　゛ニー 電話０５３４　（５６）　０６８７　　”、、：：−１
：。 ５、［正命令の日付　　昭和６０年１月２９日（発送日
）６、補正の対象　　　　明ｍ書 ７、補正の内容 願書に最初に添付した明細書の浄書・別紙のとおり　（
内容に変更なし）1 to 3 show an apparatus for manufacturing a rubber molded product in which two or more types of rubber materials are joined according to the present invention. FIG. 1 is an explanatory diagram of the apparatus, and FIG. ■An enlarged view of the part, Figure 3 is a sectional view taken along the line ■-■ in Figure 2, and
The figure is a cross-sectional view of a rubber molded product manufactured by the method of this invention. 25.29...Discharge hole (25...small hole in the lower mold, 29...large hole in the upper mold) Figure 2, Figure 3, Figure 4, B. Procedural amendment written format) % formula % 2. Title of the invention Method for manufacturing a rubber molded product made by joining two or more types of rubber materials 3. Relationship with the case of the person making the amendment Address of the patent applicant Yuto-cho, Hamana-gun, Shizuoka Prefecture Ubumi 4251 name
Nissei Electric Co., Ltd. Representative Picture Book 5-4, Agent 14-115 Motojo-cho, Hamamatsu City, Shizuoka Prefecture 430 (Koishi Building) '12, (8353) Patent Attorney Nozue, 2111.
Annie telephone 0534 (56) 0687 ”,,::-1
:. 5. [Date of official order: January 29, 1985 (shipment date) 6. Subject of amendment: Letter of intent 7. Contents of amendment: As per the engraving and attached sheet of the specification originally attached to the application (
(No change in content)

Claims (5)

【特許請求の範囲】[Claims] （１）二種以上の可塑化されたゴム材を同時に唯一の吐
出孔から射出し、その後、加硫することを特徴とする、
二種以上のゴム材を接合したゴム材成形品の製造方法。(1) Two or more types of plasticized rubber materials are simultaneously injected from a single discharge hole, and then vulcanized.
A method for manufacturing a rubber molded product by joining two or more types of rubber materials. （２）加硫方法が第一次加硫と第二次加硫とからなるこ
とを特徴とする特許請求の範囲第１項記載の二種以上の
ゴム材を接合したゴム材成形品の製造方法。(2) Manufacture of a rubber molded product made by joining two or more rubber materials as set forth in claim 1, characterized in that the vulcanization method consists of primary vulcanization and secondary vulcanization. Method. （３）第一次加硫を、第１加硫炉と第２加硫炉で行うこ
とを特徴とする特許請求の範囲第２項記載の二種以上の
ゴム材を接合したゴム材成形品の製造方法。(3) A rubber material molded product made by joining two or more rubber materials according to claim 2, characterized in that the primary vulcanization is performed in a first vulcanization furnace and a second vulcanization furnace. manufacturing method. （４）第二次加硫をバッジ式の下２００℃で４〜６時間
することを特徴とする特許請求の範囲第２項記載の二種
以上のゴム材を接合したゴム材成形品の製造方法。(4) Manufacture of a rubber material molded product made by joining two or more rubber materials according to claim 2, characterized in that the second vulcanization is carried out at 200° C. for 4 to 6 hours under a badge method. Method. （５）前記ゴム材が、絶縁性シリコーンゴムと導電性シ
リコーンゴムとであることを特徴とする特許請求の範囲
第１項、第２項、第３項又は第４項記載の二種以上のゴ
ム材を接合したゴム材成形品の製造方法。(5) The rubber material is an insulating silicone rubber and a conductive silicone rubber. A method for manufacturing a rubber molded product by joining rubber materials.
JP59212130A 1984-10-08 1984-10-08 Manufacture of rubber molding wherein two or more different rubber materials are joined Granted JPS6189022A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59212130A JPS6189022A (en) 1984-10-08 1984-10-08 Manufacture of rubber molding wherein two or more different rubber materials are joined

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59212130A JPS6189022A (en) 1984-10-08 1984-10-08 Manufacture of rubber molding wherein two or more different rubber materials are joined

Publications (2)

Publication Number Publication Date
JPS6189022A true JPS6189022A (en) 1986-05-07
JPH0211413B2 JPH0211413B2 (en) 1990-03-14

Family

ID=16617387

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59212130A Granted JPS6189022A (en) 1984-10-08 1984-10-08 Manufacture of rubber molding wherein two or more different rubber materials are joined

Country Status (1)

Country Link
JP (1) JPS6189022A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005161132A (en) * 2003-11-28 2005-06-23 Dow Corning Toray Silicone Co Ltd Method for producing silicone laminate
JP2010158897A (en) * 2010-02-09 2010-07-22 Dow Corning Toray Co Ltd Method of manufacturing silicone laminate

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5092356A (en) * 1973-12-19 1975-07-23
JPS5624328A (en) * 1979-08-07 1981-03-07 Copal Co Ltd High speed electromagnetic shutter
JPS5760942A (en) * 1980-09-30 1982-04-13 Toyoda Gosei Co Ltd Colored weather strip and method of manufacture the same
JPS5970534A (en) * 1982-10-15 1984-04-21 ヘルマン・ベルシユトルフ・マシイネンバウ・ゲゼルシヤフト・ミト・ベシユレンクテル・ハフツング Head mechanism of extruder for manufacturing flat shape
JPS6129521A (en) * 1984-07-19 1986-02-10 Toshiba Silicone Co Ltd Silicone rubber molded shape and manufacture thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5092356A (en) * 1973-12-19 1975-07-23
JPS5624328A (en) * 1979-08-07 1981-03-07 Copal Co Ltd High speed electromagnetic shutter
JPS5760942A (en) * 1980-09-30 1982-04-13 Toyoda Gosei Co Ltd Colored weather strip and method of manufacture the same
JPS5970534A (en) * 1982-10-15 1984-04-21 ヘルマン・ベルシユトルフ・マシイネンバウ・ゲゼルシヤフト・ミト・ベシユレンクテル・ハフツング Head mechanism of extruder for manufacturing flat shape
JPS6129521A (en) * 1984-07-19 1986-02-10 Toshiba Silicone Co Ltd Silicone rubber molded shape and manufacture thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005161132A (en) * 2003-11-28 2005-06-23 Dow Corning Toray Silicone Co Ltd Method for producing silicone laminate
JP2010158897A (en) * 2010-02-09 2010-07-22 Dow Corning Toray Co Ltd Method of manufacturing silicone laminate

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