专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH10138301A PREPLASTICATION TYPE INJECTION MOLDING MACHINE AND CONTROL THEREOF 失效
公开(公告)号：JPH10138301A
公开(公告)日：1998-05-26
申请号：JP29480396
申请日：1996-11-07
申请人： NISSEI PLASTICS IND CO
发明人： KOBAYASHI TAKAHIRO
IPC分类号： B29C45/54 , B29C45/76
摘要： PROBLEM TO BE SOLVED: To obtain a stable molded product of high quality by excluding the long-term remaining of a resin in an injection cylinder and eliminating the mixing of a resin different in heat history or the yellowing of the resin while setting cushion quantity optimum to the kind of a resin or a mold. SOLUTION: The inner diameter Df of the front part 4f in the inner peripheral surface 4i of an injection cylinder 4 is made large to form a difference-in level surface 8 to the inner peripheral surface 4i and a resin supply passage 9 is formed so that the resin L supplied into the injection cylinder 4 from a plasticizing apparatus impinges against the difference-in-level surface 8. The positional control to an injection plunger 3 is performed so that the leading end edge part 3s at the formost advance position Pf of the injection plunger 3 is positioned in front of the rear side edge part 10r of the supply passage 9 opened to the injection cylinder 4.

2. 发明专利

JPH0558891B2 失效
公开(公告)号：JPH0558891B2
公开(公告)日：1993-08-27
申请号：JP25759086
申请日：1986-10-29
申请人： NISSEI PLASTICS IND CO
发明人： TAKIZAWA MICHIAKI , SUGANUMA MASAMOTO , USUI KAZUO , KOBAYASHI TAKAHIRO
IPC分类号： B22D17/32 , B29C45/76 , G06F3/02

3. 发明专利

JPH0544898B2 失效
公开(公告)号：JPH0544898B2
公开(公告)日：1993-07-07
申请号：JP1757290
申请日：1990-01-26
申请人： NISSEI PLASTICS IND CO
发明人： MYAHARA MASAAKI , NAKAMURA NOBUYUKI , ARAI TAKESHI , KOBAYASHI TAKAHIRO
IPC分类号： B29C45/50 , B29C45/77

4. 发明专利

JPH03239522A METHOD AND APPARATUS FOR CONTROLLING INJECTION MOLDING MACHINE 失效
公开(公告)号：JPH03239522A
公开(公告)日：1991-10-25
申请号：JP3453490
申请日：1990-02-15
申请人： NISSEI PLASTICS IND CO
发明人： MIYAHARA MASAAKI , NAKAMURA NOBUYUKI , ARAI TAKESHI , KOBAYASHI TAKAHIRO
IPC分类号： G05B7/02 , B29C45/04 , B29C45/50 , B29C45/64 , B29C45/76
摘要： PURPOSE:To eliminate variations in a time necessary for switching and prevent a controlled value switching position from being varied, by switching a controlled value for an injection molding machine after the lapse of a time determined by subtracting a time necessary for the switching from a time necessary for a switching target position to be reached. CONSTITUTION:An MPU calculates the distance At between a screw 14 and a switching target position S1, from the current position St of the screw 14 measured by a rotary encoder 40 and a position detector 38. Next, the distance Bt by which the screw 14 is moved in a period equal to the sum of one monitoring period Tm and a time Tp necessary for a switching operation is calculated. The MPU compares the two calculated values with each other, and finishes a monitoring operation if At>Bt. After the condition At

5. 发明专利

JP2001162663A PRESSURE DETECTION APPARATUS FOR INJECTION MOLDING MACHINE 失效
公开(公告)号：JP2001162663A
公开(公告)日：2001-06-19
申请号：JP34847899
申请日：1999-12-08
申请人： NISSEI PLASTICS IND CO
发明人： AOKI HIDEMI , KOBAYASHI TAKAHIRO
IPC分类号： B29C45/76 , B29C45/50
摘要： PROBLEM TO BE SOLVED: To achieve improvement in a maintenance property and a long life of a load converter while pressure detection is highly precisely and stably carried out by eliminating useless stresses and temperature drift. SOLUTION: A flange part 6 is integrally provided to a nut part 4n or a ball thread part 48 of a ball thread mechanism 4, the nut part 4n or the ball thread part 4s is bonded from a pressurizing direction Hp to a movable part 2 side, and a pressure to be added to the movable part 2 is detected by installing a load converter 9 for detecting a load from a deformation of the pressure- receiving washer 8 onto an outer peripheral surface of the pressure-receiving washer 8.

6. 发明专利

JP2001105113A INJECTION MOLDING METHOD FOR METALLIC MATERIAL 失效
公开(公告)号：JP2001105113A
公开(公告)日：2001-04-17
申请号：JP27935199
申请日：1999-09-30
申请人： NISSEI PLASTICS IND CO
发明人： KOBAYASHI TAKAHIRO , MIYAGAWA MAMORU
IPC分类号： B22D17/20 , B22D17/30 , B22D17/32
摘要： PROBLEM TO BE SOLVED: To smoothly transfer, weight and degas a material by applying the moving operation and rotating operation of a screw when an injecting formation of the metallic material is executed under the liquid-phase state. SOLUTION: A retreating resistance caused by the metallic material entered into a clearance between a heating cylinder and a screw flight, is excluded by rotating the screw 3 at the advancing position by the setting number of revolutions after completing the injection. The screw 2 is forcibly retreated by the setting distance and thereafter, the transportation of the metallic material is started by applying the back pressure to the rotated screw 2 at the retreated position. Then the stirring of the metallic material under the liquid phase state is executed in a front chamber 1a. Thereafter, the rotation of the sleeve 2 is stopped to complete the storing. Further, the screw 2 is advancingly shifted to pass the stored material. Then the injection is executed as the weighting completion only when the material pressure reaches the setting pressure in the preset advancing distance of the screw 2.

7. 发明专利

JPH0999454A APPARATUS FOR MEASURING WEIGHT OF MOLDING 失效
公开(公告)号：JPH0999454A
公开(公告)日：1997-04-15
申请号：JP28259095
申请日：1995-10-03
申请人： NISSEI PLASTICS IND CO
发明人： TAKIZAWA KIYOTO , SHIMIZU HISATO , KOBAYASHI TAKAHIRO
IPC分类号： B29C45/17 , B29C45/76
摘要： PROBLEM TO BE SOLVED: To accurately judge whether the wt. of a molding is proper in low cost. SOLUTION: The wt. measuring device 2 arranged under a molding discharge port Mo, the weighing tray placing frame 3 arranged between the molded product discharge port Mo and the wt. measuring device 2 and the weighing tray 4 placed on the weighing tray placing frame 3 are provided. Further, a lift mechanism 5 lifts and lowers the weighing tray placing frame 3 and respectively moves the same to a receiving position PU receiving the molding C discharged from the molding discharge port Mo from the weighing tray 4, measuring position Pd separated from the weighing tray 4 in such a state that the weighting tray 4 is placed on the wt. measuring device 2 and the discharge position Pm positioned between the receiving position PU and the measuring position Pd and a tilting mechanism 6 tilting the weighting tray placing frame 3 at the discharge position Pm to discharge the molding C on the weighing tray 4 are provided.

8. 发明专利

JP2521578B2 失效
公开(公告)号：JP2521578B2
公开(公告)日：1996-08-07
申请号：JP40462990
申请日：1990-12-03
申请人： NISSEI PLASTICS IND CO
发明人： MYAHARA MASAAKI , KOBAYASHI TAKAHIRO
IPC分类号： B29C45/76 , B29C45/77

9. 发明专利

JPH0566218A METHOD AND APPARATUS FOR MEASURING DISTRIBUTION OF METAL 失效
公开(公告)号：JPH0566218A
公开(公告)日：1993-03-19
申请号：JP25458291
申请日：1991-09-05
申请人： NISSEI PLASTICS IND CO
发明人： KOBAYASHI TAKAHIRO
IPC分类号： G01N27/72
摘要： PURPOSE:To obtain the method and apparatus which can detect the distribution of the metallic state in an entire specimen without being in contact with the specimen. CONSTITUTION:A detecting coil 14, wherein the inductance changed when metal passes in a magnetic field, is provided. A measuring device 10, which detects the presence or absence of the metal at a part of a specimen 24 to which the detecting coil 14 is directed based on the change in inductance of the detecting coil 14, is provided. The detecting coil 14 is made to scan at least within the range wherein the specimen 24 is to be measured, and the presence or absence of the metal is sequentially detected through the measuring device 10.

10. 发明专利

JP2001105120A METHOD FOR WEIGHING METALLIC MATERIAL IN INJECTING FORMATION 失效
公开(公告)号：JP2001105120A
公开(公告)日：2001-04-17
申请号：JP27936299
申请日：1999-09-30
申请人： NISSEI PLASTICS IND CO
发明人： TAKAYAMA KAZUTOSHI , KODA NORIHIRO , TAKEUCHI YASUHIKO , KOBAYASHI TAKAHIRO , HAYASHI YUJI , MIYAGAWA MAMORU
IPC分类号： B22D17/20 , B22D17/30 , B22D17/32
摘要： PROBLEM TO BE SOLVED: To always surely execute the transportation and the weighing of a metallic material under liquid phase state by adopting the sloping setting of a heating cylinder and the forcible retreat of a screw. SOLUTION: The screw 12 is shiftably provided in the rotating direction and the axial direction in the heating cylinder 11 having a nozzle 13 at the front end part and a supplying hole 14 at the rear part. The heating cylinder 11 is slopingly set downward so that the metallic material flows down to a front chamber under the liquid phase state with the dead weight. The screw 12 at the advancing position after injecting while keeping this sloping state, is forcibly retreated to the setting position and a prescribed amount of the liquid phase state material c temporarily stored in the periphery at the front part of the screw is sucked and stored in the front chamber 11a of the heating cylinder 11 with the negative pressure. The screw 12 at the retreating position is rotated after stopping and the liquid phase material c in the front chamber 11a is weighed to a fixed amount at every times.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式