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1. 发明专利

JP2001310377A METHOD AND APPARATUS FOR BLOWING AIR OF HOLLOW MOLDING MACHINE 失效
公开(公告)号：JP2001310377A
公开(公告)日：2001-11-06
申请号：JP2000128762
申请日：2000-04-28
申请人： JAPAN STEEL WORKS LTD
发明人： KATO TAKAAKI , SUZUKI KIYOMI
IPC分类号： B29C49/58
摘要： PROBLEM TO BE SOLVED: To solve the problem that a molding cannot be raised rapidly to a predetermined height by suspending the molding from an air blowing nozzle so that productivity cannot be enhanced by shortening a molding cycle time of a hollow molding machine. SOLUTION: A method for blowing air of the hollow molding machine comprises the steps of opening a mold 6, then driving to raise a support 1 to a molding machine frame 8 by a first elevation driver 36 in a state in which the molding 4 after blow molding is adhered to the air blowing nozzle 5, and driving to raise a movable member 24 to the support 1 by a second elevation driver 37.

2. 发明专利

JP2000190326A METHOD AND APPARATUS FOR MOLDING HOLLOW MOLDED PARISON 失效
公开(公告)号：JP2000190326A
公开(公告)日：2000-07-11
申请号：JP37192198
申请日：1998-12-28
申请人： JAPAN STEEL WORKS LTD
发明人： FUJIWARA YUKIO , TAKAHASHI TOSHIYASU , KATO TAKAAKI
IPC分类号： B29B11/14 , B29C49/04 , B29C49/22 , B29L22/00 , B29L24/00
摘要： PROBLEM TO BE SOLVED: To form a pinch part having excellent sealing performance by sufficiently pressing in adhered part in a width direction of an inner layer parison to a sealed state at both end corners of the width direction of an inner surface of the pinch part of the parison. SOLUTION: In the method for molding a hollow molded parison, a pinch part 16b of an inner layer parison 16 has a cut part 16a formed by cutting an overall width of a lower end of the parison 16 by a cutting edge of a pinch blade, an adhered part 16d connected in a strip-like state to the cut part 16a, pressed by a dam connected to the edge and brought into close contact in a thickness reduced state, and a protrusion 16e having a thickness protruded by pressed by the dam. In this case, the protrusion 16e is formed in the overall width of the inner surface of the pinch part 16b of the parison 16.

3. 发明专利

JP2000158519A METHOD FOR MOLDING PARISON OF HOLLOW MOLDING MACHINE 失效
公开(公告)号：JP2000158519A
公开(公告)日：2000-06-13
申请号：JP33536498
申请日：1998-11-26
申请人： JAPAN STEEL WORKS LTD
发明人： FUJIWARA YUKIO , TAKAHASHI TOSHIYASU , KATO TAKAAKI
IPC分类号： B29C33/60 , B29C49/04 , B29C49/22 , B29L24/00
摘要： PROBLEM TO BE SOLVED: To prevent adhesion of inner and outer layer parisons and to prevent foaming between the layers by interposing a lubricating material layer between an outer surface of the inner layer parison and an inner layer of the outer layer parison in the case of extruding the inner and outer layer parisons in a hollow molding machine. SOLUTION: An extruder 9 for an inner layer is driven to supply a molten material to a manifold 10 and a channel 8 for the inner layer, and an inner layer of a cylindrical state is continuously extruded from a nozzle 18 for the inner layer to form an inner layer parison 16. A molten resin previously stored in a cylinder device 6a of an extruder 6 for an outer layer is extruded, and an outer layer parison 15 is formed of a molten resin to be discharged through a manifold 7 and a nozzle 13 for the outer layer. A lubricating material is previously mixed with at least one of a molten material for forming the parison 15 and a molten material for forming the parison 16 in order to prevent sticking or adhering between the parisons 16 and 15. As the lubricating material, paraffin and the like or wax or the like are suitable.

4. 发明专利

JPH11105118A AIR BLOWING UNIT FOR HOLLOW MOLDING MACHINE 失效
公开(公告)号：JPH11105118A
公开(公告)日：1999-04-20
申请号：JP26969197
申请日：1997-10-02
申请人： JAPAN STEEL WORKS LTD
发明人： KATO TAKAAKI
IPC分类号： B29C49/04 , B29C49/42 , B29C49/58 , B29C49/76 , B29L22/00
摘要： PROBLEM TO BE SOLVED: To smoothly take off without engaging an inside non-foam film layer of an extruded cylindrical laminate with a surface of a columnar cooling drum by incorporating 10 wt.% or more or preferably 15 wt.% or more of inorganic filler in raw material for forming a polypropylene resin non-foam film layer disposed at least the drum side. SOLUTION: The air blowing unit for a hollow molding machine comprises a variable height type stopper 70 having a variable overall eight size L as a stopper for bringing into contact with a collar of a nut stand for containing a nut 26, a cutter ring 60, and a counterplate 61. In this case, if contact state of the ring 60 with the counterplate 61 is deteriorated, the height size L is immediately altered to always cut an upper burr 64 with satisfactory yield.

5. 发明专利

JPH1142700A MOLD CLAMPING DEVICE OF BLOW MOLDER 失效
公开(公告)号：JPH1142700A
公开(公告)日：1999-02-16
申请号：JP20183597
申请日：1997-07-28
申请人： JAPAN STEEL WORKS LTD
发明人： KATO TAKAAKI , YOSHIDA HISASHI
IPC分类号： B29B11/10 , B29C49/04 , B29C49/56 , B29L22/00
摘要： PROBLEM TO BE SOLVED: To realize the prevention of molds from deviating and the pins and the holes of the molds from wearing, the improvement of the lives of the molds, the prevention of parting lines from poor missregistering and burrs from poor pinching-off (whiskers from developing) by a method wherein a horizontal bending toggle mechanism locates between an upper rod and a lower rod, which hold respective mold parts openably and closably so as to clamp the molds by utilizing the compressive forces of the respective rods. SOLUTION: This mold clamping device of a blow molder has a constitution for preventing parting lines from deviating, burrs from poor pinching-off and the like by providing the respective clevises 7a and 8a provided at both the ends of a toggle mechanism 9 at the intermediate position between an upper rod 19a and a lower rod 19b and bending and moving horizontally the respective toggle pieces 7 and 8 of the toggle mechanism normal to the hanging-down direction of a parison for carrying out the mold clamping by means of the compressive forces of respective rods 19a and 19b.

6. 发明专利

JPH1142699A MOLD CLAMPING DEVICE OF BLOW MOLDER 失效
公开(公告)号：JPH1142699A
公开(公告)日：1999-02-16
申请号：JP20183497
申请日：1997-07-28
申请人： JAPAN STEEL WORKS LTD
发明人： KATO TAKAAKI , SAITO NAOTO
IPC分类号： B29B11/10 , B29C49/04 , B29C49/56 , B29L22/00
摘要： PROBLEM TO BE SOLVED: To prevent a mold from tilting to one side in a conventional manner, the conventional missregister of parting lines, development of whiskers of an upper fin and of a lower fin, wear of the pins and holes of molds from developing, improve the yield of a favorable quality molding article, and contrive to improve the lives of the molds, by a method wherein the respective toggles of a pair of the horizontally provided toggles act a pressing force at the clamping of the molds to the molds from its horizontal left and right directions. SOLUTION: The mold clamping device of a blow molder has a pair of toggle mechanism 9 and 9A, which are provided between the rear plate 18 of a mold closing and opening interlocking and the second mold part 3 of a mold 1 and bend respectively in opposite directions. By opening and closing the mold 1 through the horizontal motions of the respective toggles 7, 8, 7A and 8A of the respective toggle mechanisms 9 and 9A horizontally or to the direction normal to the hanging direction of a parison 6 and through the bending of the toggles 7, 8, 7A and 8A, the molds are so constituted as to be prevented from being deviated from each other at their clamping.

7. 发明专利

JPH10250701A LIQUID FILLING METHOD AND FILLING NOZZLE OF SIMULTANEOUSLY FILLING BLOW-MOLDING MACHINE 失效
公开(公告)号：JPH10250701A
公开(公告)日：1998-09-22
申请号：JP5790097
申请日：1997-03-12
申请人： JAPAN STEEL WORKS LTD
发明人： KATO TAKAAKI
IPC分类号： B65B3/02 , B29C49/42 , B29L22/00 , B65B3/04
摘要： PROBLEM TO BE SOLVED: To improve filling accuracy of a filled product and operating efficiency and to reduce a facility cost by supplying liquid to a small number of nozzles of a filling nozzle to manufacture the filled product of a large capacity and also by supplying the liquid to each of the plurality of nozzles of the filling nozzle with the filling nozzle replaced with a mold to manufacture a small quantity of multiple-connected packages. SOLUTION: In manufacturing a filled product of a large capacity, a cylindrical parison is pushed out from a cross head by a predetermined length, and a mold moves and stops at a liquid filling position. A nozzle of a filling nozzle 1 is inserted into the parison, and clean air is blown from multiple tubes 7 of the filling nozzle 1 into the parison to mold a bottle. Then liquid is collected from a plurality of arrays of solenoid valves 58 by a manifold and is filled from the nozzle of the filling nozzle 1 into the parison. After filling, the nozzle escapes upward, and also a pressure-sealing mold is closed to have a mouth of a molded product fusion-sealed. By replacing the filling nozzle with the mold or the like, a filled product comprising multiple connected packages of a small capacity can be also manufactured.

8. 发明专利

JPH10249924A MOLD CLAMPING APPARATUS FOR HOLLOW MOLDING MACHINE 失效
公开(公告)号：JPH10249924A
公开(公告)日：1998-09-22
申请号：JP5650697
申请日：1997-03-11
申请人： JAPAN STEEL WORKS LTD
发明人： KATO TAKAAKI
IPC分类号： B29C33/20 , B29C33/22 , B29C49/04 , B29C49/56 , B29L22/00
摘要： PROBLEM TO BE SOLVED: To prevent deviation of mold mating surfaces due to aging change by opening/closing a mold via a toggle mechanism by a motor drive and accurately smoothly clamping the mold without contaminating a molding. SOLUTION: In the mold clamping apparatus for a hollow molding machine, toggles 7, 8 of a toggle mechanism 9 are bent while vertically moving in a vertical direction along a direction for suspending a parison 6 to switch a mold 1. Accordingly, at the time of clamping, one mold 3 is not inclined like prior art, and deviation of a parting line and cutting fault of upper and lower flashes can be prevented.

9. 发明专利

JPH10180855A METHOD AND APPARATUS FOR STERILIZING SIMULTANEOUS FILLING HOLLOW MOLDING MACHINE 失效
公开(公告)号：JPH10180855A
公开(公告)日：1998-07-07
申请号：JP34568196
申请日：1996-12-25
申请人： JAPAN STEEL WORKS LTD
发明人： KATO TAKAAKI , KISHI MASAYUKI
IPC分类号： B29C49/42 , B29C49/46 , B29C49/78
摘要： PROBLEM TO BE SOLVED: To certainly, safely and rapidly sterilize the interior of the filling piping system of a simultaneous filling hollow molding machine. SOLUTION: A plurality of the filling nozzles 30 in a simultaneous filling hollow molding machine are allowed to communicate with a moving tank 8 hermetically closed through joints 2 and a sterilizing fluid is allowed to flow to the moving tank 8 from a filling liquid storage tank through filling nozzles 30. The temps. of the filling nozzles 30 are measured by the thermocouples 3 provided in the joints 2 to perform sterilizing control.

10. 发明专利

JPH10146883A METHOD FOR SIMULTANEOUS FILLING BLOW MOLDING AND DEVICE THEREFOR 失效
公开(公告)号：JPH10146883A
公开(公告)日：1998-06-02
申请号：JP30944796
申请日：1996-11-20
申请人： JAPAN STEEL WORKS LTD
发明人： KATO TAKAAKI , KISHI MASAYUKI
IPC分类号： B29C49/42 , B29C49/46 , B29L22/00
摘要： PROBLEM TO BE SOLVED: To prevent penetration of various bacteria or foreign substances from an opening part of a parison or the like by providing an outer tube outside a filling nozzle part of a filling nozzle and by making clean air flow through a gap between the filling nozzle part and the outer tube. SOLUTION: A filling nozzle 12 is constructed of a filling nozzle part 12a, a nozzle holder part 30 holding the filling nozzle part 12a and an outer tube 31 provided concentrically outside the filling nozzle part 12a. An air reservoir 33 is provided in the circumference of the filling nozzle part 12a and the lower part of the air reservoir 33 communicates with a gap between the outer tube 31 and the filling nozzle part 12a, while the upper part thereof communicates with a clean air inlet 34 in the upper end part of the nozzle holder part 30. As the result, air is made to flow on the outer surface of the filling nozzle part 12a from the clean air inlet 34 and, therefore, various bacteria or foreign substances are prevented from sticking on the outer surface of the filling nozzle 12 when it goes downward and upward.

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