JPH0516267A - Manufacture of roller - Google Patents
Manufacture of rollerInfo
- Publication number
- JPH0516267A JPH0516267A JP16701591A JP16701591A JPH0516267A JP H0516267 A JPH0516267 A JP H0516267A JP 16701591 A JP16701591 A JP 16701591A JP 16701591 A JP16701591 A JP 16701591A JP H0516267 A JPH0516267 A JP H0516267A
- Authority
- JP
- Japan
- Prior art keywords
- roller
- sponge
- silicone rubber
- mold
- pressure
- 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
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 239000004945 silicone rubber Substances 0.000 claims abstract description 35
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 31
- 239000000203 mixture Substances 0.000 claims abstract description 19
- 238000000227 grinding Methods 0.000 claims abstract description 10
- 238000002347 injection Methods 0.000 claims description 18
- 239000007924 injection Substances 0.000 claims description 18
- 229920001971 elastomer Polymers 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 239000006260 foam Substances 0.000 abstract description 4
- 230000001105 regulatory effect Effects 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 20
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 238000001723 curing Methods 0.000 description 8
- 238000005187 foaming Methods 0.000 description 5
- 238000007259 addition reaction Methods 0.000 description 4
- 229920002631 room-temperature vulcanizate silicone Polymers 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000004073 vulcanization Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000013007 heat curing Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Landscapes
- Rolls And Other Rotary Bodies (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Fixing For Electrophotography (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、電子複写機等のローラ
の製造方法に係り、特にトナー定着部のローラの製造方
法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a roller for an electronic copying machine or the like, and more particularly to a method of manufacturing a roller of a toner fixing section.
【０００２】[0002]
【従来の技術】従来から電子複写機やレーザプリンタの
普及に伴い機器の小型化、低加重化が図られ、それに対
応してこれらの機器に用いられるトナー定着部も小型化
し、低硬度化が要求されている。 特に加圧ローラは加
熱ローラとの間の通紙の安定性を図るためニップ幅を確
保しなければならず、単層のシリコーンゴムで形成され
た加圧ローラでは低硬度であって、通紙性のよい摩擦係
数の小さい表面平滑なしかも摩耗しにくいものが得られ
なかった。このため、芯金上にスポンジ体を形成し、そ
の上層に摩擦係数の小さい最外層を設けた多層構造のロ
ーラが用いられている。2. Description of the Related Art Conventionally, with the spread of electronic copying machines and laser printers, downsizing and weight reduction of equipment have been achieved. Correspondingly, the toner fixing section used in these equipments has also been downsized and the hardness thereof has been reduced. Is required. In particular, the pressure roller must secure a nip width in order to ensure the stability of paper passing between the heat roller and the pressure roller, and the pressure roller formed of a single layer of silicone rubber has low hardness. It was not possible to obtain a material having a good friction coefficient, a small coefficient of friction, and a smooth surface that is not easily worn. For this reason, a roller having a multi-layer structure in which a sponge body is formed on a core metal and an outermost layer having a small friction coefficient is provided on the sponge body is used.
【０００３】多層構造の加圧ローラを作製するには、芯
金にシリコーンゴム等を加硫接着してスポンジローラを
形成した後に、表面を研削し、最外層にプライマーを介
してラテックス等を塗装して焼成していたが、工程数も
多くなり製造工程中に付着あるいは混入する異物が焼成
工程で炭化することが多く、ローラ表面の突起や凹みあ
るいは表層膜のピンホールの原因となってしまった。To manufacture a pressure roller having a multi-layer structure, a core metal is vulcanized and adhered with silicone rubber to form a sponge roller, the surface is ground, and latex or the like is applied to the outermost layer through a primer. However, the number of processes is large, and foreign substances that adhere to or are mixed in during the manufacturing process are often carbonized during the baking process, which causes protrusions and dents on the roller surface or pinholes on the surface layer film. It was
【０００４】そのため、最外層として熱収縮チューブを
用い円筒金型の内側にこの内径よりやや小さい径のチュ
ーブを添装させ、中心に芯金を配置させ、芯金とチュー
ブ間に液状ゴムをチューブを膨張するまで注入した後、
金型ごと焼成加硫して製造することにより無研削で製造
する方法（特開平１−２１９７８１号、特開平１−２７
８３１５号、特開平１−２７８３１６号公報）があっ
た。Therefore, a heat-shrinkable tube is used as the outermost layer, a tube having a diameter slightly smaller than this inner diameter is attached to the inside of the cylindrical mold, a core metal is arranged at the center, and a liquid rubber tube is placed between the core metal and the tube. After infusing until inflated,
A method in which the mold is baked and vulcanized to be manufactured without grinding (JP-A-1-219781 and JP-A-1-27).
8315 and JP-A-1-278316).
【０００５】[0005]
【発明が解決すべき課題】しかしながら、このような装
置を用いた場合、金型セット時に金型の内径より僅かに
小さい内径のチューブを正規の位置に固定支持する作業
は熟練を要し、むずかしかった。そのため、円筒金型
に、芯金にスポンジ体を形成したスポンジローラを挿入
し、円筒金型を挟持する１対の挟持金型でスポンジロー
ラを円筒金型と同軸状に固定し、スポンジローラと円筒
金型間に室温で液状の常温硬化型（ＲＴＶ）シリコーン
ゴム組成物を注入し、スポンジ体が発泡しないよう常温
で硬化させて成型する方法（特開昭６３−８２７１０号
公報）が用いられていた。However, when such a device is used, it is difficult and difficult to fix and support a tube having an inner diameter slightly smaller than the inner diameter of the mold at a proper position when setting the mold. It was Therefore, a sponge roller having a sponge body formed on a core metal is inserted into the cylindrical mold, and the sponge roller is fixed coaxially with the cylindrical mold by a pair of sandwiching molds for sandwiching the cylindrical mold. A method is used in which a room temperature curable (RTV) silicone rubber composition which is liquid at room temperature is injected between the cylindrical molds and cured at room temperature so that the sponge body does not foam (Japanese Patent Laid-Open No. 63-82710). Was there.
【０００６】しかしながらＲＴＶシリコーンゴムでは、
金型に注入する際にも硬化が始ってしまうため、作業を
迅速に行う必要があり、注型中に粘度が上がって偏肉が
生じてしまった。また硬化時間が長く、数mm厚のＲＴＶ
シリコーンゴム層を形成するのに８時間を要し、生産効
率が非常に悪いものであった。そこで、生産効率を上げ
るため、硬化時間の短い付加反応型（ＬＴＶ）シリコー
ンゴムを用いてスポンジローラ上に最外層を形成しよう
とすると、ＬＴＶシリコーンゴムは熱硬化型であるため
加熱成型を行うと、スポンジ体が加熱により発泡してし
まいローラ表面に凹凸が生じ、無研削でローラを得るこ
とは不可能であった。However, in RTV silicone rubber,
Since the hardening begins when it is poured into the mold, it is necessary to perform the work quickly, and the viscosity increases during casting, causing uneven thickness. Also, the curing time is long and the RTV of several mm thickness
It took 8 hours to form the silicone rubber layer, and the production efficiency was very poor. Therefore, in order to increase the production efficiency, if an outermost layer is formed on the sponge roller by using an addition reaction type (LTV) silicone rubber having a short curing time, the LTV silicone rubber is thermosetting, and therefore heat molding is performed. However, it was impossible to obtain a roller without grinding because the sponge body was foamed by heating and the roller surface was uneven.
【０００７】本発明は上記の欠点を解消するためになさ
れたものであって、硬化時間が短く、しかも無研削で効
率よく、スポンジローラに最外層を積層されたローラの
製造方法を提供することを目的とする。The present invention has been made in order to solve the above-mentioned drawbacks, and provides a method for manufacturing a roller in which the outermost layer is laminated on a sponge roller, which has a short curing time and is efficient without grinding. With the goal.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するた
め、本発明のローラの製造方法は、芯軸にスポンジ体を
形成して成るスポンジローラの前記スポンジ体上に最外
層を積層したローラを製造するに際し、前記スポンジロ
ーラが同軸状に挿入される円筒部と、前記円筒部及び前
記スポンジローラを挟持する一対の挟持部とを備えた金
型を用い、前記挟持部の一方に設けられた液状ゴム注入
口よりシリコーンゴム組成物を注入し、注入時及び硬化
時に前記挟持部の他方に設けられた圧力調整弁により前
記円筒部内壁と前記スポンジローラとの間の圧力を調整
して無研削で作成するものである。In order to achieve the above object, a method of manufacturing a roller according to the present invention comprises a sponge roller having a core shaft formed with a sponge body, and a roller having an outermost layer laminated on the sponge body. In manufacturing, a mold provided with a cylindrical portion into which the sponge roller is inserted coaxially and a pair of clamping portions for clamping the cylindrical portion and the sponge roller is used, and is provided in one of the clamping portions. A silicone rubber composition is injected from a liquid rubber injection port, and during injection and curing, the pressure between the inner wall of the cylindrical part and the sponge roller is adjusted by a pressure adjusting valve provided on the other side of the sandwiching part to perform no grinding. It is created by.
【０００９】[0009]
【作用】スポンジローラに最外層を設ける際に、円筒部
と、円筒部及びスポンジローラを同軸状に挟持する挟持
部とを備えた金型を使用する。スポンジローラと金型間
に注入される常温で液状のゴムは硬化時間の短い付加反
応型シリコーンゴム組成物を用いる。付加反応型シリコ
ーンゴムは加熱硬化型であり、注入時に硬化が始まるこ
となく、均一に注入でき、加熱することにより短時間で
硬化される。注入時及び注入後加熱硬化させる時に、円
筒部とスポンジローラとの間の圧力を調整するため他方
の挟持部に圧力調整弁を設ける。圧力調整弁により硬化
時にスポンジ体から発泡が生じないような圧力が負荷さ
れるようにし、これにより、表面が平滑な最外層を持っ
たローラを無研削で製造することができる。When the outermost layer is provided on the sponge roller, a mold having a cylindrical portion and a holding portion for holding the cylindrical portion and the sponge roller coaxially is used. As the rubber that is liquid at room temperature and injected between the sponge roller and the mold, an addition reaction type silicone rubber composition having a short curing time is used. The addition reaction type silicone rubber is a heat-curable type, and can be uniformly injected without starting curing upon injection, and can be cured in a short time by heating. A pressure adjusting valve is provided in the other sandwiching portion in order to adjust the pressure between the cylindrical portion and the sponge roller at the time of injection and at the time of heat curing after injection. The pressure regulating valve applies a pressure that does not cause foaming of the sponge body during curing, whereby a roller having an outermost layer having a smooth surface can be manufactured without grinding.
【００１０】[0010]
【実施例】本発明のローラの製造方法を電子複写機の加
圧ローラの製造に適用した一実施例を図面を参照して説
明する。図１に示す加圧ローラを製造する金型１は、図
２に示す加圧ローラ２を製造するものである。即ち図２
における加圧ローラ２は、芯金３の外周にスポンジ体４
を形成されたスポンジローラ５上に、最外層であるシリ
コーンゴム層６を設けたものである。シリコーンゴム層
６は付加反応型（ＬＴＶ）シリコーンゴム組成物から成
るものが好ましい。芯金３は鉄、アルミニウム等から成
り、スポンジ体４はシリコーンゴム、フッ素樹脂等の原
料を機械的に泡立てたり、気体または低沸点液体を樹脂
中に混入する物理的方法や、加熱により気体を放出する
ような発泡剤を樹脂に含有させるか、あるいは発泡基を
高分子に結合させておく等の化学的方法等の通常の方法
で形成される。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the roller manufacturing method of the present invention is applied to manufacturing a pressure roller of an electronic copying machine will be described with reference to the drawings. The mold 1 for manufacturing the pressure roller shown in FIG. 1 is for manufacturing the pressure roller 2 shown in FIG. That is, FIG.
The pressure roller 2 in FIG.
The outermost silicone rubber layer 6 is provided on the sponge roller 5 having the above-mentioned structure. The silicone rubber layer 6 is preferably made of an addition reaction type (LTV) silicone rubber composition. The core metal 3 is made of iron, aluminum or the like, and the sponge body 4 mechanically foams raw materials such as silicone rubber or fluororesin, or a physical method of mixing a gas or a low boiling point liquid into the resin, or a gas by heating. It is formed by a conventional method such as a chemical method in which a releasing agent is contained in a resin or a foaming group is bonded to a polymer.
【００１１】このようなスポンジ体４を取着されたスポ
ンジローラ５に積層されるＬＴＶシリコーンゴム層６を
形成する金型１は、円筒部７と、円筒部７の端部を挟持
する１対の挟持部である下部挟持部８及び上部挟持部９
とを備える。下部挟持部８及び上部挟持部９には、円筒
部７に挿入されたスポンジローラ５の芯金３の両端部を
円筒部７と同軸状に固定する貫通孔１１が設けられる。
さらに下部挟持部９に設けられる貫通孔１１には未加硫
のＬＴＶシリコーンゴム組成物１７の射出装置（図示せ
ず）に連結された射出口１２を嵌合するゴム注入口１３
が設けられる。また、上部挟持部９の貫通孔１１にはス
ポンジローラ５と円筒部７間の圧力を調整する圧力調整
弁１４が設けられ、金型内に一定の圧力が負荷される。
下部挟持部８及び上部挟持部９は外周に少なくとも２以
上の突起１５を有し、突起１５に掛止されるスプリング
１６で互いに固定されるようになっている。The mold 1 for forming the LTV silicone rubber layer 6 to be laminated on the sponge roller 5 having the sponge body 4 attached thereto has a cylindrical portion 7 and a pair of nipping the end portion of the cylindrical portion 7. Lower clamping part 8 and upper clamping part 9 which are clamping parts of
With. The lower holding part 8 and the upper holding part 9 are provided with through holes 11 for fixing both ends of the core metal 3 of the sponge roller 5 inserted into the cylindrical part 7 coaxially with the cylindrical part 7.
Further, a rubber injection port 13 for fitting an injection port 12 connected to an injection device (not shown) of an unvulcanized LTV silicone rubber composition 17 is provided in a through hole 11 provided in the lower holding portion 9.
Is provided. Further, a pressure adjusting valve 14 that adjusts the pressure between the sponge roller 5 and the cylindrical portion 7 is provided in the through hole 11 of the upper holding portion 9, and a constant pressure is loaded in the mold.
The lower holding portion 8 and the upper holding portion 9 have at least two or more protrusions 15 on their outer circumferences, and are fixed to each other by a spring 16 hooked on the protrusions 15.
【００１２】以上のような構成の金型１を用いて加圧ロ
ーラを製造するには、円筒部７にスポンジローラ５を挿
入し、下部挟持部８及び上部挟持部９を嵌め、この時ス
ポンジローラ５の芯金３が貫通孔１１に導入されスポン
ジローラ５は円筒部７と同軸状に固定される。そして突
起１５にスプリング１６を掛止して下部挟持部８及び上
部挟持部９を互いに締結させる。In order to manufacture a pressure roller using the mold 1 having the above-mentioned structure, the sponge roller 5 is inserted into the cylindrical portion 7 and the lower holding portion 8 and the upper holding portion 9 are fitted to each other. The core metal 3 of the roller 5 is introduced into the through hole 11 and the sponge roller 5 is fixed coaxially with the cylindrical portion 7. Then, a spring 16 is hooked on the protrusion 15 to fasten the lower holding portion 8 and the upper holding portion 9 to each other.
【００１３】その後、下部挟持部８のゴム注入口１３に
射出装置の射出口１２が嵌められると、芯金３が図１に
おいて上方に押され、下部挟持部８と貫通孔１１間に生
じた間隙からＬＴＶシリコーンゴム組成物１７がスポン
ジローラ５と円筒部７間に注入される。スポンジローラ
５の外径は円筒部７の内径より２mm程小さくなってお
り、注入される際にスポンジ体４を押しつぶさないよう
にＬＴＶシリコーンゴム組成物１７の粘度は１００〜１
５００p.s.が好ましい。この時圧力調整弁１４はＬＴＶ
シリコーンゴム組成物１７がスポンジローラ５と円筒部
７の間隙を満たし、圧力調整弁１４を押圧し、スプリン
グ１６により上部挟持部９が受ける圧力以下のある一定
圧に達した時開かれて、ＬＴＶシリコーンゴム組成物１
７が噴出するような圧力を金型１内に負荷するように調
整される。After that, when the injection port 12 of the injection device was fitted into the rubber injection port 13 of the lower holding portion 8, the core metal 3 was pushed upward in FIG. 1 and was generated between the lower holding portion 8 and the through hole 11. The LTV silicone rubber composition 17 is injected between the sponge roller 5 and the cylindrical portion 7 through the gap. The outer diameter of the sponge roller 5 is smaller than the inner diameter of the cylindrical portion 7 by about 2 mm, and the viscosity of the LTV silicone rubber composition 17 is 100 to 1 so as not to crush the sponge body 4 during injection.
500 p.s. is preferable. At this time, the pressure adjusting valve 14 is the LTV.
The silicone rubber composition 17 fills the gap between the sponge roller 5 and the cylindrical portion 7, presses the pressure regulating valve 14, and is opened when the spring 16 reaches a certain pressure equal to or lower than the pressure received by the upper clamping portion 9, and the LTV is opened. Silicone rubber composition 1
The pressure is adjusted so as to load the mold 1 with a pressure such that 7 is ejected.
【００１４】また、ＬＴＶシリコーンゴム組成物は常温
で加硫しないため、ＲＴＶシリコーンゴムのように注入
時に硬化が始ってしまうことがなく、均一に注入がなさ
れ、ローラに偏肉部が生じない。上部挟持部９から噴出
した時点でＬＴＶシリコーンゴム組成物１７の注入を停
止し、金型１を所定温度の恒温槽に放置してＬＴＶシリ
コーンゴム組成物１７を加硫硬化させてＬＴＶシリコー
ンゴム層６を形成させる。この時、圧力調整弁１４はス
ポンジ体４からの発泡が生じて表面に凹凸が生じないよ
う金型１内を負荷するように調整される。このように加
硫時に金型内の圧力を調整して発泡を抑制することによ
り、表面に凹凸生じるのを防止できる。加硫に要する時
間は２時間程であり、加硫後脱離して無研削でスポンジ
体上に最外層を積層した多層ローラを得る。Further, since the LTV silicone rubber composition is not vulcanized at room temperature, it does not start to be cured upon injection unlike RTV silicone rubber, and is uniformly injected, so that the roller does not have an uneven thickness portion. .. The injection of the LTV silicone rubber composition 17 is stopped at the point of time when the LTV silicone rubber composition 17 is ejected from the upper holding part 9, and the mold 1 is left in a constant temperature bath to cure and cure the LTV silicone rubber composition 17 to form an LTV silicone rubber layer. 6 is formed. At this time, the pressure adjusting valve 14 is adjusted so as to load the inside of the mold 1 so that the foaming from the sponge body 4 does not occur and the surface has no unevenness. Thus, by controlling the pressure in the mold during vulcanization to suppress foaming, it is possible to prevent the occurrence of irregularities on the surface. The time required for vulcanization is about 2 hours, and after vulcanization, it is detached to obtain a multilayer roller in which the outermost layer is laminated on the sponge body without grinding.
【００１５】以上の説明は加圧ローラに適用した一実施
例の説明であり、本発明はスポンジ体に最外層を設けた
多層ローラならば何れのものにも適用できる。 （実施例）外径φ１８mm、長さ２７０mmのスポンジロー
ラを、内径φ２０mmの円筒部に挿入して金型をセットし
圧力調整弁を５００ｇ／ｃｍ2で負圧する。ＬＴＶシリ
コーンゴム（信越化学工業（株）社製）を注入し、１０
０℃の恒温槽内に２時間放置してＬＴＶシリコーンゴム
を硬化させた。得られた多層ローラは表面に凹凸もな
く、均一な肉厚のスポンジローラであった。The above description is of one embodiment applied to a pressure roller, and the present invention can be applied to any multi-layer roller having a sponge body provided with an outermost layer. (Example) A sponge roller having an outer diameter of 18 mm and a length of 270 mm is inserted into a cylindrical portion having an inner diameter of 20 mm, a mold is set, and a pressure adjusting valve is negatively pressurized at 500 g / cm 2 . LTV silicone rubber (manufactured by Shin-Etsu Chemical Co., Ltd.) was injected and 10
The LTV silicone rubber was left to stand in a constant temperature bath at 0 ° C. for 2 hours to be cured. The obtained multi-layer roller was a sponge roller having a uniform wall thickness without unevenness on the surface.
【００１６】[0016]
【発明の効果】以上の説明からも明らかなように、本発
明のローラの製造方法によれば内部の圧力を所望の圧力
に調整できる金型を用いてスポンジローラ上にＬＴＶシ
リコーンゴム組成物を注型加熱硬化して製造するため、
注入時に硬化が始ることがなく均一な肉厚で、しかもス
ポンジ体から発泡が生じることがないため表面が平滑な
最外層を備えたローラを無研削で得られる。しかも従来
のＲＴＶシリコーンゴムを用いた製造方法より非常に速
く硬化できるので、製造効率が向上し歩留りよく製造す
ることができる。As is apparent from the above description, according to the roller manufacturing method of the present invention, the LTV silicone rubber composition is formed on the sponge roller using a mold capable of adjusting the internal pressure to a desired pressure. Since it is manufactured by casting heat curing,
A roller having an outermost layer having a smooth surface can be obtained without grinding because the hardening does not start at the time of injection and the foaming does not occur from the sponge body. Moreover, since the curing can be performed much faster than the conventional production method using RTV silicone rubber, the production efficiency is improved and the production can be performed with high yield.
【図１】本発明のローラの製造方法を適用したローラの
製造装置の一実施例を示す構成図FIG. 1 is a configuration diagram showing an embodiment of a roller manufacturing apparatus to which a roller manufacturing method of the present invention is applied.
【図２】図１に示す一実施例により製造されるローラを
示す断面図FIG. 2 is a cross-sectional view showing a roller manufactured by the embodiment shown in FIG.
１・・・・・・金型 ２・・・・・・加圧ローラ ３・・・・・・芯金 ４・・・・・・スポンジ体 ５・・・・・・スポンジローラ ７・・・・・・円筒部 ８・・・・・・下部挟持部 ９・・・・・・上部挟持部 １３・・・・ゴム注入口 １４・・・・圧力調整弁 １７・・・・ＬＴＶシリコーンゴム組成物（シリコーンゴム
組成物）1 ・ ・ Mold 2 ・ ・ Pressure roller 3 ・ ・ ・ ・ Core metal 4 ・ ・ ・ ・ Sponge body 5 ・ ・ ・ ・ Sponge roller 7 ・ ・ ・・ ・ ・ Cylindrical part 8 ・ ・ ・ ・ Lower clamping part 9 ・ ・ ・ Upper clamping part 13 ・ ・ ・ ・ Rubber injection port 14 ・ ・ ・ ・ Pressure adjusting valve 17 ・ ・ ・ ・ ・ ・ LTV silicone rubber composition Material (silicone rubber composition)
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ２９Ｋ 105:04 Ｂ２９Ｌ 31:32 4Ｆ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI Technical display location B29K 105: 04 B29L 31:32 4F
Claims (1)
ローラの前記スポンジ体上に最外層を積層したローラを
製造するに際し、前記スポンジローラが同軸状に挿入さ
れる円筒部と、前記円筒部及び前記スポンジローラを挟
持する一対の挟持部とを備えた金型を用い、前記挟持部
の一方に設けられた液状ゴム注入口よりシリコーンゴム
組成物を注入し、注入時及び硬化時に前記挟持部の他方
に設けられた圧力調整弁により前記円筒部内壁と前記ス
ポンジローラとの間の圧力を調整して無研削で作成する
ことを特徴とするローラの製造方法。Claim: What is claimed is: 1. A sponge roller formed by forming a sponge body on a core shaft, wherein the sponge roller is coaxially inserted when a roller having an outermost layer laminated on the sponge body is manufactured. Using a mold having a cylindrical portion and a pair of clamping portions for clamping the cylindrical portion and the sponge roller, a silicone rubber composition is injected from a liquid rubber injection port provided in one of the clamping portions, and injection is performed. A method for manufacturing a roller, characterized in that the pressure between the inner wall of the cylindrical portion and the sponge roller is adjusted by a pressure adjusting valve provided on the other side of the sandwiching portion at the time of hardening and curing without grinding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16701591A JP3066116B2 (en) | 1991-07-08 | 1991-07-08 | Roller manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16701591A JP3066116B2 (en) | 1991-07-08 | 1991-07-08 | Roller manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0516267A true JPH0516267A (en) | 1993-01-26 |
| JP3066116B2 JP3066116B2 (en) | 2000-07-17 |
Family
ID=15841808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16701591A Expired - Fee Related JP3066116B2 (en) | 1991-07-08 | 1991-07-08 | Roller manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3066116B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5736089A (en) * | 1994-03-08 | 1998-04-07 | Syfal S.R.L. | Method for producing rollers covered with layers of silicone-based material |
| CN112046046A (en) * | 2020-07-03 | 2020-12-08 | 苏州市创怡盛实业有限公司 | Production method of compressed sponge roller |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4152362B2 (en) | 2004-07-30 | 2008-09-17 | 日本トムソン株式会社 | Rolling guide unit |
| JP4521305B2 (en) | 2005-03-23 | 2010-08-11 | 日本トムソン株式会社 | Linear motion guidance unit |
-
1991
- 1991-07-08 JP JP16701591A patent/JP3066116B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5736089A (en) * | 1994-03-08 | 1998-04-07 | Syfal S.R.L. | Method for producing rollers covered with layers of silicone-based material |
| US6089848A (en) * | 1994-03-08 | 2000-07-18 | Syfal S.R.L. | Apparatus for producing rollers with elastic silicone-based material layers |
| US6126583A (en) * | 1994-03-08 | 2000-10-03 | Syfal S.R.L. | Supporting structure for producing rollers covered with layers of elastic silicone-based material |
| CN112046046A (en) * | 2020-07-03 | 2020-12-08 | 苏州市创怡盛实业有限公司 | Production method of compressed sponge roller |
| CN112046046B (en) * | 2020-07-03 | 2022-06-07 | 苏州市创怡盛实业有限公司 | Production method of compressed sponge roller |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3066116B2 (en) | 2000-07-17 |
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