JPS6015378B2 - Continuous automatic kneading method for thermosetting resin molding materials - Google Patents
Continuous automatic kneading method for thermosetting resin molding materialsInfo
- Publication number
- JPS6015378B2 JPS6015378B2 JP50154778A JP15477875A JPS6015378B2 JP S6015378 B2 JPS6015378 B2 JP S6015378B2 JP 50154778 A JP50154778 A JP 50154778A JP 15477875 A JP15477875 A JP 15477875A JP S6015378 B2 JPS6015378 B2 JP S6015378B2
- Authority
- JP
- Japan
- Prior art keywords
- roll
- scraper
- thermosetting resin
- kneading
- kneaded material
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/52—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices with rollers or the like, e.g. calenders
- B29B7/56—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices with rollers or the like, e.g. calenders with co-operating rollers, e.g. with repeated action, i.e. the material leaving a set of rollers being reconducted to the same set or being conducted to a next set
- B29B7/562—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices with rollers or the like, e.g. calenders with co-operating rollers, e.g. with repeated action, i.e. the material leaving a set of rollers being reconducted to the same set or being conducted to a next set with means for axially moving the material on the rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/002—Methods
- B29B7/007—Methods for continuous mixing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/52—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices with rollers or the like, e.g. calenders
- B29B7/56—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices with rollers or the like, e.g. calenders with co-operating rollers, e.g. with repeated action, i.e. the material leaving a set of rollers being reconducted to the same set or being conducted to a next set
- B29B7/566—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices with rollers or the like, e.g. calenders with co-operating rollers, e.g. with repeated action, i.e. the material leaving a set of rollers being reconducted to the same set or being conducted to a next set provided with means to take material away from a set of rollers and to reconduct it to the same set; provided with endless belts, e.g. which can be in or out of cooperation with at least one of the rollers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Description
【発明の詳細な説明】
本発明は、熱硬化性樹脂成形材料、すなわちフェノール
樹脂、ェポキシ樹脂、ジアリルフタレート樹脂等で代表
される熱硬化性樹脂成形材料の鷹練方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for kneading thermosetting resin molding materials, ie, thermosetting resin molding materials typified by phenol resins, epoxy resins, diallyl phthalate resins, and the like.
本発明に係る混線方法は、成形材料の製造工程における
加熱濠練を均一かつ連続的に行わしめることを目的とす
るものである。The purpose of the cross-wire method according to the present invention is to uniformly and continuously perform hot moat kneading in the manufacturing process of a molding material.
熱硬化性樹脂成形材料は、各種レジン、硬化剤、充填剤
、離型剤および添加剤等の混合物を、加熱混練したのち
、乾燥、粉砕して成形材料が得られる。Thermosetting resin molding materials are obtained by heating and kneading a mixture of various resins, curing agents, fillers, mold release agents, additives, etc., followed by drying and pulverization.
熱硬化性樹脂成形材料の重要な品質特性として、成形加
工性及び熱安定性がある。成形加工性とは、成形機で成
形加工するに際し、溶融樹脂を金型内へ射出するに当っ
て、金型内の細部にまで充填させるための樹脂の流動性
並びに充填した溶融樹脂をできるだけ短時間に硬化させ
るための遠硬化性であり、一方、熱安定性とは、成形機
例えば射出成形機のシリンダー内での加熱、濃練で溶融
状態を保持する性能である。これら成形材料の諸特性は
、各種の原材料に左右されることは勿論であるが、製造
工程中の加熱、混練工程に最も、その影響を受ける。Important quality characteristics of thermosetting resin molding materials include moldability and thermal stability. Molding processability refers to the fluidity of the resin in order to inject the molten resin into the mold during molding with a molding machine, and the ability to inject the molten resin into the mold in as short a time as possible. On the other hand, thermal stability refers to the ability to maintain a molten state by heating or thickening in the cylinder of a molding machine, such as an injection molding machine. The various properties of these molding materials naturally depend on various raw materials, but are most influenced by the heating and kneading steps during the manufacturing process.
従来から、原材料の加熱、混練工程としては、混線ロー
ル方式が用いられ、バッチ方式或いは連続式が一般的で
ある。Conventionally, a mixed roll system has been used for heating and kneading raw materials, and a batch system or a continuous system is generally used.
バッチ方式では原材料を一度に、ロール上に投入し、混
練する方法であり、成形材料の混練程度の調整は作業者
の経験による知見、カンに頼るところが大きい。そのた
め成形材料の混糠程度を均一に管理することが難かしか
つた。一方、従来の連続方式では、生産性は高いもので
あるが、ロール上での材料の加熱混練が均一でない難点
があった。In the batch method, raw materials are put on rolls and kneaded all at once, and the adjustment of the degree of kneading of the molding material relies largely on the knowledge and intuition of the operator's experience. Therefore, it has been difficult to uniformly control the degree of bran in the molding material. On the other hand, although the conventional continuous method has high productivity, it has the disadvantage that the heating and kneading of the materials on the rolls is not uniform.
すなわち、ロール面に巻き付いた材料のスムースな送り
が難かしく、材料の滞留時間を一定にすることが出来な
かった。そのため、成形加工性及び流動性のバラッキが
大きく安定した成形材料が得られなかった。本発明者ら
は、加熱混練ロール作業における混練度合の均一化、混
綾作業の自動連続化を主眼として、種々検討した結果、
混線ロール上の材料シートを鋤起しスクレーパーと、分
断刃及び送り羽根の組合せで、容易に供孫溝城から敬出
城へ連続的に移送させることができその結果、供謙合材
料の渡練ロール上での滞留時間を一定に、かつ均一な緑
練を行えることを見し、出した。That is, it was difficult to smoothly feed the material wrapped around the roll surface, and it was not possible to make the residence time of the material constant. Therefore, a stable molding material with large variations in moldability and fluidity could not be obtained. As a result of various studies, the present inventors focused on making the degree of kneading uniform in the heating kneading roll work and automatically continuous kneading work.
By using a combination of a plowing scraper, a dividing blade, and a feed blade, the material sheet on the mixed roll can be easily and continuously transferred from Fuzungou City to Jingzhu City. It was found that the residence time on the roll was constant and uniform green kneading was possible.
この混練方法によって製造した成形材料は、成形加工性
及び流動性のバラッキが少なく安定した品質であること
を確かめ、本発明を完成するに至ったものである。It was confirmed that the molding material produced by this kneading method had stable quality with little variation in moldability and fluidity, and this led to the completion of the present invention.
以下本発明に係る連続自動鶴練方法につき、図面によっ
て説明する。The continuous automatic crane kneading method according to the present invention will be explained below with reference to the drawings.
一対の混練ロール２及び３が配置され、渡練ロール３は
材料シートの巻き付き側である。６は、鋤起しスクレー
パーで、成形シートの巻き付き側ロール３の上部に配し
、鋤起しスクレーバー６の先端はロール面に接線方向に
配し、接触している。A pair of kneading rolls 2 and 3 are arranged, with the kneading roll 3 being the side around which the material sheet is wound. Reference numeral 6 denotes a plowing scraper, which is disposed on the upper part of the roll 3 on the winding side of the formed sheet, and the tip of the plowing scraper 6 is arranged tangentially to and in contact with the roll surface.
この鋤起しスクレ−パー６は漫練ロ−ル３の全幅即ち原
材料の供給域から、成形材料シートの取出城に亘つて配
置する。この鋤起しスクレーパー６の上面に、先端が鋭
角となっている混綾シート分断刃７が、鋤起しスクレ−
パー６の上面に対してほゞ垂直に固定され、この分断刃
７の後部にはシート取出し側へ角度を有する送り羽根８
が配置されている。これら分断刃７及び送り羽根８は一
組となったもので、その機能は混練ロールに巻き付いた
材料シート９を鋤起しスクレーパ−６で、混練ロール面
より分離させた後、直ちに分断刃７で切断し、シート状
の混練材料を９′及び９″に分けて、ロール上に送り込
むものである。そのとき、分離された９″のシート状の
混練材料は、更に送り羽根８で、シート取出し側へ順次
移送される。この分断刃及び送り羽根の数は、ロールの
規模、混練時間等により決定されるが、通常のロールで
は２〜６組程度装備される。渥練シート取出しスクレー
パ−１０は、シート取出し側の末端に配置され、通常混
練度合に応じて、その位置を調整しうるように設計され
ている。The plowing scraper 6 is disposed over the entire width of the kneading roll 3, that is, from the raw material supply area to the forming material sheet takeout area. A mixed twill sheet dividing blade 7 with an acute-angled tip is mounted on the upper surface of the plow scraper 6.
A feed blade 8 is fixed almost perpendicularly to the upper surface of the par 6, and is angled toward the sheet take-out side at the rear of the dividing blade 7.
is located. These dividing blades 7 and feeding blades 8 are a set, and their function is to plow up the material sheet 9 wound around the kneading roll and separate it from the kneading roll surface with the scraper 6, and then immediately divide it into the dividing blades 7. The sheet-like kneaded material is divided into 9' and 9" sheets and fed onto rolls. At this time, the separated 9" sheet-like kneaded material is further cut into sheets by a feed blade 8. They are sequentially transferred to the extraction side. The number of dividing blades and feeding blades is determined by the scale of the roll, kneading time, etc., but a normal roll is equipped with about 2 to 6 sets. The scraper 10 for taking out the kneaded sheet is arranged at the end of the sheet take-out side, and is usually designed so that its position can be adjusted depending on the degree of kneading.
また４及び５は両側ストックガイドである。次に、上記
装置による本発明の混練方法を説明する。熱硬化性樹脂
成形材料の原材料すなわち各種レジン、硬化剤、充填材
、離型を旧皮び添加剤等を均質に混合し、上記装置の供
給域へ連続的に供給する。加熱された混線ロ−ル２及３
を矢印の方向へ回転させると、上記の原材料１３は、混
線され、巻き付き側ロール面にシート状の鷹練材料９と
なる。ロール面上に巻き付いた材料シート９は、回転ご
とに、鋤起しスクレーパー６で、ロール面より分離され
再びロール間隙に落下し混練される。一端から連続的に
原材料が供給されているため、シート状の濃練材料９は
、シート取出し側へ移動をするが、本発明の装置では、
更に積極的に移送する方法として鋤起しスクレーパー６
で、ロール面より分離させたシート状の混練材料９を分
断刃７で切断し、更に切断されたシート状の混綾材料９
″は送り羽根８により、強制的に、反供給側へ移送させ
る。順次糠返えされたのち、シート取出し側に配された
混練シート取出しスクレ−バー１０でロール面より切り
離される。次工程の乾燥、粉砕工程へ送り込まれる。本
発明による混線方法は、原材料のロール上での滞留時間
を一定に保つことにより均質な加熱混綾を行わせしめた
ものであり、更に濠練状態の程度に応じて、取出しスク
レーパーの位置を調整することにより、目的に応じた流
動性をもつ成形材料が得られる。Further, 4 and 5 are stock guides on both sides. Next, the kneading method of the present invention using the above apparatus will be explained. Raw materials for the thermosetting resin molding material, ie, various resins, curing agents, fillers, mold release agents, and additives for aging are homogeneously mixed and continuously supplied to the supply area of the above-mentioned apparatus. Heated mixed wire rolls 2 and 3
When the raw material 13 is rotated in the direction of the arrow, the raw material 13 is mixed and becomes a sheet-like falconry material 9 on the winding side roll surface. The material sheet 9 wound around the roll surface is separated from the roll surface by the plow scraper 6 with each rotation and falls into the roll gap again to be kneaded. Since the raw material is continuously supplied from one end, the sheet-shaped thickened material 9 moves to the sheet take-out side, but in the device of the present invention,
A plow scraper 6 is used as a method for more active transfer.
Then, the sheet-like kneaded material 9 separated from the roll surface is cut by the cutting blade 7, and the sheet-like mixed twill material 9 is further cut.
'' is forcibly transferred to the opposite side by the feed blade 8. After being sequentially refried, it is separated from the roll surface by the kneaded sheet take-out scraper 10 arranged on the sheet take-out side. The material is sent to the drying and pulverizing process.The mixing method according to the present invention allows homogeneous heating and mixing by keeping the residence time of the raw materials on the rolls constant, and further, depending on the degree of the mixing state. By adjusting the position of the take-out scraper, a molding material with fluidity suitable for the purpose can be obtained.
本発明の連続目動混練方法は、設備全体の構成が簡単で
、従来の混線ロールに付加的な装置として構成される上
故障少なく取扱い容易で、且つ、製造装置の大型化、連
続化にも対応しうる利点を有するものである。The continuous movement kneading method of the present invention has a simple overall equipment configuration, is configured as an additional device to the conventional mixed roll, and is easy to handle with few failures, and is also suitable for upsizing and continuous production equipment. It has corresponding advantages.
図面は、本発明の実施例を示すもので、第１図は、本発
明に係る混練ロールの斜視図、第２図は、第１図を材料
供尊台側から見た側面図、第３図は、鋤起しスクレーパ
ーの斜視図である。
多７図
多之囚
多３図The drawings show embodiments of the present invention; FIG. 1 is a perspective view of a kneading roll according to the present invention, FIG. 2 is a side view of FIG. The figure is a perspective view of a plow raising scraper. Figure 7, Figure 3
Claims (1)
れた混練ロール２及び３上の一端の供給域に連続的に定
量供給し、該原材料１３を加熱混練し、巻き付け側ロー
ル３面に巻き付かせ、シート状の混練材料９とすると共
に該混練材料９を巻き付け側ロール３の上部に配した鋤
起しスクレーパー６でロール面より分離し、鋤起しスク
レーパー６の上面に数組配置されシート取出し側へ角度
を有する送り羽根８とは一体となつている分断刃７で該
混練材料９を切断すると共に、該混練材料９を該送り羽
根８により強制的にシート取出し側の方へ移送し、再び
ロール間隙に落下させ順次移送混連を繰返し、該混練材
料９とロールの他端のシート取出し側より取出しスクレ
ーパー１０でロール面より切り離し取出すことを特徴と
する熱硬化性樹脂成形材料の連続自動混練方法。1. A raw material 13 of a thermosetting resin molding material is continuously fed in a fixed amount to a supply area at one end of a pair of heated kneading rolls 2 and 3, the raw material 13 is heated and kneaded, and is wound around the 3 sides of the winding side roll. The kneaded material 9 is made into a sheet-like kneaded material 9, and the kneaded material 9 is separated from the roll surface by a raking scraper 6 arranged on the upper part of the winding side roll 3, and several sets are arranged on the upper surface of the raking scraper 6. The kneaded material 9 is cut by the dividing blade 7 that is integrated with the feed blade 8 that is angled toward the sheet take-out side, and the kneaded material 9 is forcibly transferred to the sheet take-out side by the feed blade 8. The thermosetting resin molding material is then dropped again into the gap between the rolls, and the kneaded material 9 is sequentially transferred and mixed, and the kneaded material 9 is taken out from the sheet take-out side at the other end of the roll, and is separated and taken out from the roll surface with a scraper 10. Continuous automatic kneading method.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50154778A JPS6015378B2 (en) | 1975-12-26 | 1975-12-26 | Continuous automatic kneading method for thermosetting resin molding materials |
| DE19762656386 DE2656386A1 (en) | 1975-12-15 | 1976-12-13 | Thermosetting moulding materials prepd. as uniform sheet - for use in injection and transfer moulding processes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50154778A JPS6015378B2 (en) | 1975-12-26 | 1975-12-26 | Continuous automatic kneading method for thermosetting resin molding materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5279364A JPS5279364A (en) | 1977-07-04 |
| JPS6015378B2 true JPS6015378B2 (en) | 1985-04-19 |
Family
ID=15591678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50154778A Expired JPS6015378B2 (en) | 1975-12-15 | 1975-12-26 | Continuous automatic kneading method for thermosetting resin molding materials |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6015378B2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5422614A (en) * | 1977-07-21 | 1979-02-20 | Shin Meiwa Ind Co Ltd | Device for discharging pulverulent and granular body in pulverulent and granular body truck |
-
1975
- 1975-12-26 JP JP50154778A patent/JPS6015378B2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5422614A (en) * | 1977-07-21 | 1979-02-20 | Shin Meiwa Ind Co Ltd | Device for discharging pulverulent and granular body in pulverulent and granular body truck |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5279364A (en) | 1977-07-04 |
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