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1. 发明专利

JPH10151660A BEARING STRUCTURE OF SCREW SHAFT OF TWIN-SCREW EXTRUDER 失效
公开(公告)号：JPH10151660A
公开(公告)日：1998-06-09
申请号：JP31098796
申请日：1996-11-21
申请人： JAPAN STEEL WORKS LTD
发明人： WATADA SATORU
IPC分类号： B29C47/40
摘要： PROBLEM TO BE SOLVED: To make it possible to freely pull a screw shaft out of a cylinder and, at the same time, prevent a screw from coming into contact with the cylinder when a load develops by a method wherein a first bearing for rotatably supporting the front end side of the screw shaft and a second bearing for rotatably supporting its rear end are provided between a coupling and the cylinder. SOLUTION: The front end 2a of a screw shaft 2 is connected through a coupling 3 to a space reducing shaft 5. The front end 2a side of the screw shaft 2 is rotatably supported by a first bearing 10, which is provided between the coupling 3 and a cylinder 1 while the rear end 2b side of the screw shaft 2 is rotatably supported by a second bearing 6. The screw shaft 2 can easily be pulled out of the cylinder 1. For that, the first bearing 10 consists of a slide bearing, as the lubricating oil of which grease oil is supplied by an automatic continuous oil feeder. A hardness difference is provided at the surface of a portion, which comes into contact with the bearing 10, of the screw shaft, through a surface-hardening such as surface quench hardening or the like. As the bearing 10, an acetal resin-based bearing is employed.

2. 发明专利

JPS6255966B2 失效
公开(公告)号：JPS6255966B2
公开(公告)日：1987-11-24
申请号：JP20045782
申请日：1982-11-17
申请人： JAPAN STEEL WORKS LTD
发明人： WATADA SATORU
IPC分类号： B29C49/64 , B29B11/08 , B29C49/06 , B29C49/08 , B29C49/68 , B29C65/00 , B29L22/00

3. 发明专利

JPH0911310A CLEANING DEVICE FOR SCREW FOR EXTRUDER 失效
公开(公告)号：JPH0911310A
公开(公告)日：1997-01-14
申请号：JP16250495
申请日：1995-06-28
申请人： JAPAN STEEL WORKS LTD
发明人： YOSHIDA MINORU , ISHIDA MASAHARU , MIZUNO HARUYUKI , WATADA SATORU
IPC分类号： B29C47/08 , B08B1/04 , B29B7/58 , B29C47/40 , B29C47/60
摘要： PURPOSE: To provide a cleaning device which can clean easily in a short time by one operator without being exposed to danger in a high temperature screw with regard to a cleaning device for a screw for an extruder. CONSTITUTION: This cleaning device comprises a frame body 2 in which three lengthy roller 3 which are arranged in the axial direction of a screw 21 are installed on an inner circumference and which surrounds a screw 2, a rotary brush 4 which is installed in the frame body 2 so that the outer circumference enters the groove of the screw 21 and driven to rotate, and a guide roller 5 which is installed in the frame body 2 to roll along the front side and rear side of the flight 21a of the screw 21.

4. 发明专利

JPS60234825A HOLLOW MOLD ASSEMBLY 失效
公开(公告)号：JPS60234825A
公开(公告)日：1985-11-21
申请号：JP9101484
申请日：1984-05-09
申请人： JAPAN STEEL WORKS LTD
发明人： WATADA SATORU
IPC分类号： B22D17/22 , B29C33/20 , B29C49/56 , B29L22/00
摘要： PURPOSE:To avoid unfavorable influence to a molded product by preventing the generation of bending by repulsive force of pressure at the central part of a mold, by supporting the total length of the mold by receiving molding pressure acting on the mold at lateral oblique surfaces of the grooves of a fixed platen and a bottom plate by the mutual inlay of an upper plate and the bottom plate with the mold. CONSTITUTION:When pressurized oil is supplied to the other side of a hydraulic cylinder 32, fixing bolts 33 are fallen and cavity half-parts 24, 25 are fallen while successively performing mold closing according to the movement of the cam follower 29 which is received in a guide groove 30 and guided therealong. When the falling of said cavity half-parts 24, 25 is succeeded further, the cavity half- parts 24, 25 are contacted to be brought to a mold closed state and a falling peripheral oblique surface 40 is inlaid with the oblique surface 39 of the groove provided to the upper surface of a bottom plate 21 and, subsequently, an upper end peripheral oblique surface 38 is inlaid with the oblique surface 37 of the groove provided to the lower surface of an upper plate 26 and a pair of cavity half-parts 24, 25 are brought to a mechanically fixed state and sufficiently resist against molding pressure on and after to enable molding.

5. 发明专利

JPH1148309A METHOD AND DEVICE FOR REGULATING KNEADING IN BIAXIAL EXTRUDER 失效
公开(公告)号：JPH1148309A
公开(公告)日：1999-02-23
申请号：JP20808197
申请日：1997-08-01
申请人： JAPAN STEEL WORKS LTD
发明人： WATADA SATORU , ISHIDA MASAHARU , MIZUGUCHI HIDEKI
IPC分类号： B29B7/48 , B29C47/40 , B29C48/92 , B29C47/92
摘要： PROBLEM TO BE SOLVED: To change the size of a choking unit for a flow passage easily and permit the regulation of kneading by a method wherein a regulating body of choking, which is provided at the tip end side of a cylinder, is moved. SOLUTION: Upon crushing polycarbonate, respective nuts 25 are loosened to move a regulating body 5 of choking along the direction of an arrow sign X in a diagram or the axial direction of the regulating body 5 in order to obtain the predetermined size of a choking unit 13a in accordance with the nature of the material, then, respective nuts 25 are clamped at set positions whereby the regulating body 5 of choking can be fixed. Accordingly, the kneaded material, crushed (or kneaded) by respective screws 2, 3 is extruded downward out of an extruding port 1b through the choking unit 13a of the regulating body 5 of choking. This is a case, in which the material is crushed, however, the material can be treated in the same manner when the material is kneaded or molten and kneaded.

6. 发明专利

JPH06159340A FIXING METHOD AND STRUCTURE FOR SEGMENT SCREW PIECE 失效
公开(公告)号：JPH06159340A
公开(公告)日：1994-06-07
申请号：JP31022992
申请日：1992-11-19
申请人： JAPAN STEEL WORKS LTD
发明人： WATADA SATORU
IPC分类号： B29C65/56 , F16B35/00
摘要： PURPOSE:To fix segment screw pieces securely at all times, particularly, irrespective of change of temperature, concerning the fixing method and structure for the segment screw pieces. CONSTITUTION:In the fixing method of segment screw pieces, a plural number of ring-like screw pieces 2a to 2d which are provided on the outer periphery of a shaft 1 are pressed and fixed thereon by a nut 5 via a plural number of ring-like elastic bodies 21.

7. 发明专利

JPH08142049A RESIN MATERIAL GRANULATOR 失效
公开(公告)号：JPH08142049A
公开(公告)日：1996-06-04
申请号：JP30943694
申请日：1994-11-21
申请人： JAPAN STEEL WORKS LTD
发明人： YOSHIDA MINORU , MIZOGUCHI MITSUAKI , WATADA SATORU
IPC分类号： B29B9/06 , B26D1/29
摘要： PURPOSE: To improve the cutting quality of an edge tool in a granulator for producing a pellet of a resin material molded into a string shape by cutting the resin material by the edge tool rotated within the plane crossing the feed direction of the resin material at a right angle while the resin material is fed in a longitudinal direction. CONSTITUTION: A large number of strands 2 composed of a resin material molded into a string shape are fed to a fixed blade 23 in a state arranged in one row by take-over rolls 6, 7 to be cut by a rotary cutter 8. The rotary cutter 8 is constituted by attaching a large number of edge tools 32 to a disc 31 rotated within the plane crossing the feed direction of the strands 2 at a right angle. The edge tools 32 are arranged so that the edges 32a thereof are inclined toward the fixed blade 23 on a side view and inclined in the direction opposite to a rotary direction on a front view.

8. 发明专利

JPH0345692B2 失效
公开(公告)号：JPH0345692B2
公开(公告)日：1991-07-11
申请号：JP24633984
申请日：1984-11-22
申请人： JAPAN STEEL WORKS LTD
发明人： WATADA SATORU
IPC分类号： B29C49/06 , B29C49/42

9. 发明专利

JPS6253324B2 失效
公开(公告)号：JPS6253324B2
公开(公告)日：1987-11-10
申请号：JP6220979
申请日：1979-05-22
申请人： JAPAN STEEL WORKS LTD
发明人： SHIRATO TATSU , YOSHIDA MINORU , KUBOTA KANSABURO , WATADA SATORU , NAMITANI KATSUHIRO
IPC分类号： B29B9/00 , B29B9/06 , B29B9/10 , B29C47/68

10. 发明专利

JPS60234824A HOLLOW MOLD ASSEMBLY 失效
公开(公告)号：JPS60234824A
公开(公告)日：1985-11-21
申请号：JP9101584
申请日：1984-05-09
申请人： JAPAN STEEL WORKS LTD
发明人： WATADA SATORU
IPC分类号： B29C33/20 , B29C49/48 , B29C49/56 , B29L22/00
摘要： PURPOSE:To enhance the quality of a product by preventing the possibility of bending generated at the central part of a mold by the repulsive force of molding pressure, by strongly support molding pressure acting on the mold at the time of a molding process by the mutual inlay operation between an upper fixed platen and the mold, and the mold and a lower fixed platen extending over the total length of the mold. CONSTITUTION:First hydraulic cylinders 34 are attached to both ends of a lower fixed platen 31 and connection rods 35 are fixed to the operation rods thereof while the upper ends of the connection rods 35 are fixed to an upper fixed platen 30 by using bolts. A mold fixing and release apparatus is constituted of the upper fixed platen 30 and the groove 32 thereof, molds 24, 25 and upper and lower end outer peripheral surfaces thereof, a lower fixed platen 31 and the groove 33 thereof and the first hydraulic cylinders and the connection rods 35. In a mold opening and closing apparatus, a second hydraulic cylinder 26 is attached to a hydraulic cylinder mount plate 28 fixed to upper plates 26, 27 at one end part thereof and to a bottom plate 21 at the other end thereof. By integrating two hydraulic cylinders with the second hydraulic cylinder 35, two rods of each cylinder is constituted so as to be operated in directions opposite to each other.

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