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1. 发明专利

JP2000043037A METHOD FOR REGENERATING AND REUSING USED PAPER 失效
公开(公告)号：JP2000043037A
公开(公告)日：2000-02-15
申请号：JP21901598
申请日：1998-08-03
申请人： JAPAN STEEL WORKS LTD
发明人： MURAKAMI KAZUHIKO , MIZUGUCHI HIDEKI , ODA NORIKIYO
IPC分类号： B29B9/06 , B29C45/00 , B29C47/00 , B29K311/12 , C08L1/00 , C08L101/00
摘要： PROBLEM TO BE SOLVED: To regenerate and reuse used paper such as newspapers or magazines by melting and kneading a mixture of pulverized used paper obtained by grinding the used paper in the form of powder and a resin raw material, and extruding the mixture and further pelletizing it by an extruder. SOLUTION: Either of newspapers or magazines, or handbills or all kinds of used paper are fed into a hopper 6 provided in the cylinder 3 of an extruder 10, together with pulverized paper 21 obtained by grinding it previously using a grinder and a resin raw material 22. In addition, these materials are heated, melted and kneaded by a pair of screws 5 and a resin heater 9 in the cylinder 3 and at the same time, are sequentially transferred to a molding die 7 from the hopper 6 side. Further the mixture is extruded to the outside from the outlet of the molding die 7. In this case, the mixture is extruded in the form of a strand from the outlet which is of a holelike shape, and the extruded mixture is cut using the cutter of a granulator 25 to be set in the water. After that, the set granules are sent to another place to be dried and pelletized 26. Thus regenerate and reuse of used paper such as newspapers, magazines or handbills are made possible.

2. 发明专利

JPH11106758A METHOD FOR LIQUEFYING WASTE PLASTIC 失效
公开(公告)号：JPH11106758A
公开(公告)日：1999-04-20
申请号：JP29158697
申请日：1997-10-08
申请人： JAPAN STEEL WORKS LTD
发明人： MIZUGUCHI HIDEKI , HORIE KUNIHIRO
IPC分类号： A62B3/00 , A62D3/00 , B09B3/00 , B29B17/00 , B29C48/76 , B29K105/26 , C08J11/12 , C10G1/10
摘要： PROBLEM TO BE SOLVED: To enable a hydrogen chloride gas to be removed efficiently and a high-quality oil to be obtd. SOLUTION: Fluff of a crushed waste plastic is melted with a vented twin- screw extruder E1 and the resultant plastic melt is extruded while a hydrogen chloride gas generated is removed through a vent-hole 5. The extruded waste plastic melt is then introduced into a single-screw extruder E2 , is heated therein to a temp. at which the plastic is liquefied by thermal decomposition. and is extruded. Thus extruded high-temp. waste plastic melt is divided with a flow divider valve 15 into two streams, one of which being returned to the vented twin-screw extruder E1 and the other being introduced into a thermal decomposition vessel 18 to form a liquified gas. The liquified gas is led to a fractional distillation apparatus 24 to be fractionated and recovered and, on the other hand, a part of the high-temp. waste plastic melt in the thermal decomposition vessel 18 is returned to the single-screw extruder E2 .

3. 发明专利

JPH05309721A 失效
公开(公告)号：JPH05309721A
公开(公告)日：1993-11-22
申请号：JP11337992
申请日：1992-05-06
申请人： JAPAN STEEL WORKS LTD
发明人： MIZUGUCHI HIDEKI , YOSHIDA MINORU , ISHIDA MASAHARU , MASUDA HIDEO
IPC分类号： B29C47/66 , B29C48/92 , B29C47/92
摘要： PURPOSE:To detect a frictional state simply neither by drawing out a screw nor by decomposing a cylinder. CONSTITUTION:A friction-detecting method between a screw of an extruder and its cylinder and the apparatus are so constructed that a frictional quantity is detected by variation of distance signals 9b, 10b from a pair of distance sensors 9, 10 provided at positions near a screw ground part 8a or by variation of an oscillation signal from a sensor 13 in a wall 4aA of the cylinder 1.

4. 发明专利

JPH0577491B2 失效
公开(公告)号：JPH0577491B2
公开(公告)日：1993-10-26
申请号：JP19345088
申请日：1988-08-04
申请人： JAPAN STEEL WORKS LTD
发明人： SHIRATO TATSU , MIZUGUCHI HIDEKI , YOSHIDA MINORU
IPC分类号： B29B7/48 , B29C47/40 , B29C48/395 , B29C48/67 , B29C48/92 , B29C47/64

5. 发明专利

JPH05124035A DIE AND SURFACE TREATMENT THEREOF 失效
公开(公告)号：JPH05124035A
公开(公告)日：1993-05-21
申请号：JP29001691
申请日：1991-11-06
申请人： JAPAN STEEL WORKS LTD
发明人： MIZUGUCHI HIDEKI , TANAKA YOSHITOMO , CHIKARA KENJIROU , MAKITA TETSUO , YOSHIDA MINORU
IPC分类号： B21D37/20 , B22F3/14 , B22F7/08 , B29B9/06 , B29C33/38
摘要： PURPOSE:To enhance wear resistance at a time of cutting resin by especially forming a hardening part for the surface of a die by hot isostatic press pressurization (HIP method). CONSTITUTION:In relation to surface treatment of a die and this die, powdery alloy of a component for forming a hardening layer is filled into a recess 2A formed on the surface 2a of the base material 2 of the die. This powdery alloy is pressurized by hot isostatic press pressurization and sintered. Thereby a nozzle 1 for passing resin which penetrates the hardening part 3 on the surface of the die is formed in the base material 2 of the die.

6. 发明专利

JPH0425409A DEVICE FOR GRANULATING PLASTIC 失效
公开(公告)号：JPH0425409A
公开(公告)日：1992-01-29
申请号：JP13024090
申请日：1990-05-22
申请人： JAPAN STEEL WORKS LTD
发明人： ISHIDA YASUHIKO , YOSHIDA MINORU , MIZUGUCHI HIDEKI , OKITA TAKAAKI , MAKITA TETSUO
IPC分类号： B26D1/29 , B26D7/26 , B29B9/06
摘要： PURPOSE:To make the contact state of cutter knives and a die surface optimum and granulate at high efficiency by automatically controlling thrust to forward thrust generated at the time of rotating the cutter knives by means of a pressure medium. CONSTITUTION:When a cutter driving shaft 12 is rotated by a driving means, cutter knives 11 are rotated at high speed, and molten plastic discharged out of a nozzle 6 is cut finely by respective cutter knives 11. When the cutter knives 11 are rotated under water, thrust force is generated and a cutter driving shaft 12 is moved in the advancing direction. As the wear of cutter knives 11 and defective cutting of polymer are generated when said advancement is generated, the number of rotations of said cutter driving shaft 12 is sensed, and based on a signal of said number of rotations, a first pressure regulating valve 68 is adjusted to control a pressure medium in a first space chamber 56, and also the advancement of cutter driving shaft 12 is automatically controlled to the stroke S of the first space chamber 56 to control and maintain the contact state of the cutter knives 11 and a die surface 3a as optimum.

7. 发明专利

JPH02120006A KNEADING AND EXTRUDING MACHINE HAVING TWO-SCREW-SHAFT OF DIFFERENT DIAMETER 失效
公开(公告)号：JPH02120006A
公开(公告)日：1990-05-08
申请号：JP27327788
申请日：1988-10-31
申请人： JAPAN STEEL WORKS LTD
发明人： YOSHIDA MINORU , MIZUGUCHI HIDEKI , HORIE KUNIHIRO
IPC分类号： B29B7/48 , B29B7/72
摘要： PURPOSE:To perform widely and easily control of a degree of kneading, by method wherein the title machine is constituted of a pair of screw shafts, the first and second screw parts whose outside diameters of screw shafts each are different from each other, and a tapered part of an inner wall formed on an inner wall of a cylinder, and provided with a columnar part formed by adjoining to the tapered part, and a cylindrical part of the inner wall formed by adjoining to the tapered part of the inner wall. CONSTITUTION:Tapered parts 7c, 8c and columnar parts 7e, 8e constituting different diametral parts at positions where the outside diameters are changed are formed by adjoining to one another and continuously, in a space between screw parts 5, 6 each in screw shafts 7, 8 each. A gap t1 is formed among the tapered parts 7c, 8c each and a tapered part 1e of an inner wall, a gap t2 is formed among the columar parts 7e, 8e each and cylindrical parts 1ba, 1ca each of the inner wall and effective lengths D overlapping one another are formed. In case of control of a degree of kneading of resin raw materials in kneading parts 7b, 8b, the control can be performed arbitrarily by changing size of the gap t1 and effective length D by moving a cylinder 1 in an axial direction by a hydraulic cylinder 3 and the control of the degree of kneading can be performed by that whose accuracy is comparatively low.

8. 发明专利

JPS6233050B2 失效
公开(公告)号：JPS6233050B2
公开(公告)日：1987-07-18
申请号：JP16345181
申请日：1981-10-15
申请人： JAPAN STEEL WORKS LTD
发明人： MIZUGUCHI HIDEKI
IPC分类号： B29B9/00 , B29B9/06 , B29C48/30 , B29C48/32 , B29C48/345

9. 发明专利

JPS5927698B2 JPS5927698B2 - 失效
公开(公告)号：JPS5927698B2
公开(公告)日：1984-07-07
申请号：JP14157277
申请日：1977-11-28
申请人： Japan Steel Works Ltd
发明人： SHIRATO TATSU , YOSHIDA MINORU , MIZUGUCHI HIDEKI
IPC分类号： B29B7/00 , B01D29/00 , B01D29/01 , B29B13/10 , B29C47/00 , B29C47/68 , B29C47/74
CPC分类号： B29C47/681 , B29C47/0009

10. 发明专利

JPH10264233A ULTRA-HIGH SPEED TWIN-SCREW EXTRUDER 失效
公开(公告)号：JPH10264233A
公开(公告)日：1998-10-06
申请号：JP7381397
申请日：1997-03-26
申请人： JAPAN STEEL WORKS LTD
发明人： MIZUGUCHI HIDEKI , ISHIDA MASAHARU , UEDA MASANOBU , ODA NORIKIYO
IPC分类号： B29B7/48 , B29C47/40
摘要： PROBLEM TO BE SOLVED: To eliminate the contact of a screw and a cylinder and to prevent the abrasion of the screw and the cylinder to prevent the generation of vibration by rotationally supporting the shaft extending to the leading end of the screw by a leading end support bearing. SOLUTION: In an ultra-high speed twin-screw extruder wherein two screws (12) rotated in the same direction are inserted into a cylinder 11, shafts 12b are extended to the leading end screws 12a of the screws 12 and rotationally supported by the leading end support bearings 13 provided to the cylinder 11 and water cooling labyrinth type resin seal parts 14 are provided to the outer peripheries of the shafts 12b and the cylinder is branched from the position of the leading end screws 12a to provide die holders 23 in an oblique downward front direction and strand dies 24 are provided to the leading ends of the die holders 23.

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