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1. 发明专利

JPH08174141A SAND MULLING AND THROWING EQUIPMENT OF MOLDING SAND 失效
公开(公告)号：JPH08174141A
公开(公告)日：1996-07-09
申请号：JP32109194
申请日：1994-12-26
申请人： TAIYO CHUKI KK , KUBOTA KK
发明人： IWAMOTO MINORU , SAKOTA AKINORI
IPC分类号： B22C9/00 , B22C5/04 , B22C15/00
摘要： PURPOSE: To throw the molding sand with the required throwing energy while keeping the optimum rotational speed for the sand mulling in a sand mulling and feeding blade of a sand mulling and throwing equipment of the molding sand. CONSTITUTION: A rotary shaft 14 is arranged in a cylindrical casing 12, and a plurality of sand mulling and feeding blades 23 on the outer surface of this rotary shaft 14 along the circumferential and longitudinal direction. A feeding hopper 17 of the molding sand is provided on a base end part 13 of the casing 12, and a throwing port 29 of the molding sand is provided on a forward end part 26 of this casing 12. A throwing blade 31 whose diameter is larger than that of the sand mulling and feeding blade 23 is provided on a part of the rotary shaft 14 at the position of this throwing port 29.

2. 发明专利

JP2001182703A CONTROL APPARATUS FOR RECIPROCATING CARRIAGE 失效
公开(公告)号：JP2001182703A
公开(公告)日：2001-07-06
申请号：JP36572399
申请日：1999-12-24
申请人： KUBOTA KK
发明人： SAKOTA AKINORI , FUKUZAKI ICHINOSUKE , MIZUTA KIYOTSUGU , TANIGAWA JUNICHI
IPC分类号： B22D41/12 , B22D45/00 , B22D46/00 , F15B11/028 , F15B11/04
摘要： PROBLEM TO BE SOLVED: To accurately control the position and a speed of a reciprocating vehicle. SOLUTION: This control apparatus includes a hydraulic cylinder apparatus 3 for driving a reciprocating carriage 1, a detection means 8 for detecting the carriage position, a directional/speed control valve 5 to activate the hydraulic cylinder apparatus 3, hydraulic pressure detection means 34, 35 for the hydraulic cylinder apparatus 3, and actuators 21, 22, 23 which actuate the directional/ velocity control valve 5, depending on the position of a vehicle 1 and its running resistance, which can be obtained from detected signals outputted from the detection means 8 for the vehicle position and the hydraulic pressure detection means 34, 35.

3. 发明专利

JPH046496B2 失效
公开(公告)号：JPH046496B2
公开(公告)日：1992-02-06
申请号：JP10720183
申请日：1983-06-14
申请人： KUBOTA KK
发明人： SAKOTA AKINORI , YAMASHITA TSUKASA
IPC分类号： B23D45/12 , B24B27/06

4. 发明专利

JPH036857B2 失效
公开(公告)号：JPH036857B2
公开(公告)日：1991-01-31
申请号：JP13576184
申请日：1984-06-30
申请人： KUBOTA KK
发明人： SAKOTA AKINORI , KUBO AYUMI
IPC分类号： B22D13/10

5. 发明专利

JP2858523B2 失效
公开(公告)号：JP2858523B2
公开(公告)日：1999-02-17
申请号：JP21466093
申请日：1993-08-31
申请人： KUBOTA KK
发明人： SAKOTA AKINORI
IPC分类号： B24B5/40

6. 发明专利

JPH05237644A 失效
公开(公告)号：JPH05237644A
公开(公告)日：1993-09-17
申请号：JP3989192
申请日：1992-02-27
申请人： KUBOTA KK
发明人： SAKOTA AKINORI , SUZUKI YASUO
IPC分类号： B22D13/10 , B22D35/00 , B22D45/00
摘要： PURPOSE:To provide a molten metal pouring trough preventing the deterioration of working environment, having good working efficiency and having excellent durability. CONSTITUTION:The outside of a trough liner 5 running the molten metal covered with a trough case 6. A coolant piping 8 is provided in a space between the trough liner 5 and the trough case 6. A thermal compound 11 is filled in the space. The heat held in the molten metal pouring trough is absorbed by the coolant in the piping 8 with the thermal compound which is a good conductor. Thus the molten metal pouring trough is well cooled without generating vapor, etc. Moreover, since the trough is cooled at the time when the molten metal is flowing in it, the erosion of the molten metal flowing part is surely prevented.

7. 发明专利

JPH0370574B2 失效
公开(公告)号：JPH0370574B2
公开(公告)日：1991-11-08
申请号：JP11485485
申请日：1985-05-28
申请人： KUBOTA KK
发明人： SAKOTA AKINORI , KUBO AYUMI , HIGUCHI TEIICHI
IPC分类号： B22C23/00 , B22C9/10 , B22D13/10

8. 发明专利

JPH0398762A PIPE INNER SURFACE GRINDING DEVICE 失效
公开(公告)号：JPH0398762A
公开(公告)日：1991-04-24
申请号：JP23436589
申请日：1989-09-08
申请人： KUBOTA KK
发明人： SAKOTA AKINORI , MIZUTA KIYOTSUGU
IPC分类号： B24B49/16 , B24B5/40
摘要： PURPOSE:To keep the grinding force of a grinding wheel constant without being influenced by the finned state of the inner peripheral surface of a pipe and the shape of the grinding wheel by controlling the control voltage value of a pressure control valve in such a way that the driving cuurent of a driving motor becomes the fixed value. CONSTITUTION:The grinding force of a grinding wheel 6 to the inner peripheral surface of an object pipe 14 is detected as the driving current of a driving motor 5. The pressing force of the grinding wheel 6 to the inner peripheral surface of the object pipe 14 is controlled by the control power of a pressure control valve 13. Accordingly, when the driving current of the driving motor 5 is larger than the specified value, the control voltage of the pressure control valve 13 is lowered by a control circuit 10, and when the driving current of the driving motor 5 is smaller than the specified value, the control voltage of the pressure control valve 13 is raised by the control circuit 10. As a result, the driving current of the driving motor 5 can be constantly kept to the fixed valve, and therefore the grinding force of the grinding wheel 6 to the inner peripheral surface of the object pipe 14 can be kep constant without being influence by the finned state of the inner peripheral surface and the shape of the grinding wheel.

9. 发明专利

JPH0394956A CONTINUOUS CASTING APPARATUS 失效
公开(公告)号：JPH0394956A
公开(公告)日：1991-04-19
申请号：JP23376089
申请日：1989-09-07
申请人： KUBOTA KK
发明人： SAKOTA AKINORI , KUBO AYUMI
IPC分类号： B22D11/04 , B22D11/126
摘要： PURPOSE:To secure the protection of an edge by setting a cutting unit for a product as liftable, holding this cutting unit with the product drawn upward the integrally ascending the cutting unit and the product. CONSTITUTION:In a continuous casting apparatus, in which the product 7 is drawn upward from a mold 2, the cutting unit 12, which can cut the product 7 to the prescribed length, is set as vertically liftable. This cutting unit 12 has a lifting frame 13 and product clamping devices 14, 15, 16 are arranged at the positions of vertical these points. This cutting unit 12 and the product 7 are constituted so as to integrally ascend. Between the cutting unit 12 and the product 7, the shifting, such as between pinch rolls and the product, does not developed. By this method, in the case of contacting type cutting system, this makes sure of protection to the edge without an excessive load and in the case of a non-contacting type cutting system, the direction of the cutting face is surely perpendicular to the direction of axis.

10. 发明专利

JPH0377759A CENTRIFUGAL FORCE CASTING METHOD 失效
公开(公告)号：JPH0377759A
公开(公告)日：1991-04-03
申请号：JP21452289
申请日：1989-08-21
申请人： KUBOTA KK
发明人： SAKOTA AKINORI , FUKUZAKI ICHINOSUKE
IPC分类号： B22D13/02 , B22D13/10
摘要： PURPOSE:To reduce variance of tube thickness in axial direction by pouring molten metal from tip opening part of a spout toward position in front of lowermost position of inner circumferential surface of a mold in rotating direction of the mold. CONSTITUTION:At the time of pouring the molten metal, a trough part 13 is beforehand inserted into the inner part of mold 12, and the molten metal 19 is poured into the inner part of mold 12 from the tip opening part 15 of spout 14 in the trough part 13 while shifting the mold 12 so as to leave the trough part 13 from the rotating mold 12. At this time, the molten metal 19 is poured to the position C which is shifting upward from the lowermost position to the upper end position in the inner circumferential surface of mold 12. Then, as the molten metal is abutted on the inner circumferential surface of mold 12 with gravitational acceleration acting in reverse direction to the rotating direction of mold 12, the acceleration of circumferential direction applied with the rotation of mold 12 is cancelled, and running 20 of the molten metal can be made to slow and the width thereof is made to wide and the variance of tube thickness in the radial direction can be reduced.

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