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41. 发明专利

JPS6076921A NEEDLE FEEDING APPARATUS FOR NEEDLE BEARING 失效
公开(公告)号：JPS6076921A
公开(公告)日：1985-05-01
申请号：JP18083983
申请日：1983-09-30
申请人： NISSAN MOTOR , YOSHITSUKA SEIKI KK
发明人： EBIHARA YASUHIRO , OODO TAKASHI
IPC分类号： F16C43/04 , B23P19/00 , B23P21/00
摘要： PURPOSE:To prevent the deterioration of quality due to damage, by installing a driving means for pressing and separating one roller from a needle according to the necessity or unnecessariness of transportation of needles, in assembly of a needle bearing. CONSTITUTION:An apparatus for feeding a needle for needle bearing by catching it by a pair of rollers 5 and 6 is equipped with a driving means for pressing and separating at least one roller 5 from the needle 10 according to the necessity or unnecessariness of transportation of needles. Therefore, during the time in which the feeding to the next workpiece is started after the supply of needles 10 for a workpiece is suspended and said workpiece is carried-out, the needles 10 filling a feeding passage is not applied with a transporting force, and the needle 10 positioned between the rollers 5 and 6 are not damaged. Thus, the deterioration of quality and durability of bearings is prevented.

42. 发明专利

JPS5930519B2 JPS5930519B2 - 失效
公开(公告)号：JPS5930519B2
公开(公告)日：1984-07-27
申请号：JP18542580
申请日：1980-12-29
申请人： Yoshitsuka Seiki Kk , Toyota Jidosha Kk
发明人： KATAGIRI TAKESHI , OOZU MASAAKI , TANAKA YOSHIKATSU , YASUKAWA SHOKICHI
IPC分类号： B21D37/04 , B30B11/00 , B30B15/02
CPC分类号： B30B15/028

43. 发明专利

JPS5847442B2 JPS5847442B2 - 失效
公开(公告)号：JPS5847442B2
公开(公告)日：1983-10-22
申请号：JP10982281
申请日：1981-07-14
申请人： Yoshitsuka Seiki Kk
发明人： KATAGIRI TAKESHI
IPC分类号： B22F3/02 , B22F3/03 , B22F3/035 , B30B11/02 , B30B15/32
CPC分类号： B22F3/03 , B30B11/02 , B30B15/32

44. 发明专利

JPS57112997A DIE SET EXCHANGING DEVICE FOR POWDER MOLDING PRESS 失效
公开(公告)号：JPS57112997A
公开(公告)日：1982-07-14
申请号：JP18542680
申请日：1980-12-29
申请人： YOSHITSUKA SEIKI KK , TOYOTA MOTOR CO LTD
发明人： KATAGIRI TAKESHI , OOZU MASAAKI , TANAKA YOSHIKATSU , YASUKAWA SHIYOUKICHI
IPC分类号： B30B11/00 , B30B15/02
摘要： PURPOSE:To make die set exchanging and press work efficient by rotating the die set containing members provided freely revolvably on the front and rear faces on one side of a press body in such a way that their opening parts direct a constant direction at all times. CONSTITUTION:When the malfunction of the old die set D1 on a press body 1 is detected, die set containing boxes 12, 12 one of which is placed with an adjusted die set D2 and the other is empty are manually turned and positioned to the forcing and removing face of the body 1. Next, the set D2 is ejected onto the body 1, and the set D1 is projected onto the empty box 12. Thereafter, the boxes 12, 12 are turned again to the adjusting positions. Here, a chain 21 is put on between a sprocket 18 fixed to the lower bearing part 5 of a bracket 6 and a sprocket 20 fixed to the fulcrum shaft 11 of the box 12. The number of teeth of the stationary and movable sprockets 18, 20 is so set that the opening parts of the boxes 12 face a constant direction at all times. When the boxes 12 are turned in an L direction around a vertical shaft 10, they are rotated in an opposite M direction at a prescribed speed.

45. 发明专利

JPS57106814A DEVICE FOR MEASURING DISTANCE BETWEEN MOVABLE PARTS IN POWDER MOLDING PRESS 失效
公开(公告)号：JPS57106814A
公开(公告)日：1982-07-02
申请号：JP18205880
申请日：1980-12-24
申请人： YOSHITSUKA SEIKI KK
发明人： YAMAMOTO MASAO
IPC分类号： G01B7/00 , G01B7/14 , G01B21/16
摘要： PURPOSE:To measure exactly molding pressure in a pressing process by outputting a relative distance signal of each movable part in correspondence to the detection signal of the position of the press of pressing machine. CONSTITUTION:When a magnetic line of force generated by the coils built in head parts 13a and 14a approches metal projections 5a and 5b, detection signals V1 and V2 are obtained corresponding to the distance between the heads 13a and 14a and the metal projections 5a and 5b. These detection signals V1 and V2 are supplied to display devices 22 and 23 respectively through gate circuits 20 and 21. The gate circuits 22 and 23 are opened at a press position specified in advance, and therefore, the pressurizing state at that moment is displayed on the display devices 22 and 23.

46. 发明专利

JPS566800A POWDER MOLDING DEVICE 失效
公开(公告)号：JPS566800A
公开(公告)日：1981-01-23
申请号：JP8088979
申请日：1979-06-27
申请人： YOSHITSUKA SEIKI KK
发明人： KIMURA KANBEE
IPC分类号： B22F3/02 , B22F3/093 , B28B3/02 , B30B11/00 , B30B11/02
摘要： PURPOSE:To improve the mechanical properties such as strength of the powder molding in a die by applying impact of high frequencies by applying a phase difference from two orthogonal and pairing outside peripheral surfaces of the die and chaging the sectional shape of the die to an elliptical shape while alternately changing the same. CONSTITUTION:The powder molding device is constituted by a die 1, an upper punch 2, a lower punch 3, a core rod 4 and impact wave generating devices 5. The devices 5 are provided around the die 1 at an angle spacing of 90 , and the impact wave generating devices 5a, 5a' and 5b, 5b' are provided respectively in one diametral direction of the die 1 and the diametral direction orthogonal to this. In addition, a phase difference of 180 deg. is given between the operating phase of the devices 5a, 5a' and the operating phase of the devices 5b, 5b'. The die 1 is then deformed to an elliptical shape while its sectional shape is being alternately changed in the long-axis direction and the short-axis direction by these devices 5. As a result, the powder particles facing the inside circumferential surface 11 of the die are bounced up from the surface 11, whereby the necessary deformation of the die is made easy and the molding free from any density deviation is made.

47. 发明专利

JPS56204A MOLDING OF POWDER 失效
公开(公告)号：JPS56204A
公开(公告)日：1981-01-06
申请号：JP7727879
申请日：1979-06-18
申请人： YOSHITSUKA SEIKI KK
发明人： KIMURA KANBEE
IPC分类号： B22F3/02 , B22F3/093 , B30B11/00 , B30B11/02
摘要： PURPOSE:To make the density of molded product uniform by applying an impact vibration to die, lower punch, and core rod in molding a metal powder for the manufacture of a sintered product. CONSTITUTION:A raw material metal powder is filled in a space where molding is made by the die 1, the lower punches 3a and 3b, and core rod 4, pressed by the upper punch 2 for molding, and then knocked out to manufacture the molding 5. In this case, a supersonic vibration is applied by the supersonic oscillators 10, 12 and 14 fitted with the die 1, the lower punch 3a, and the core rod 4 to cause the metal particles to spring up from the die 1, the lower punch 3a, and the side wall of the core rod 4 to greatly reduce the friction between them. Thus, the density of the molding can be made uniform in every portion and thereby the manufacture of excellent sintered product is made possible. In this case, because the lower punch scarcely constitutes the wall surface of molding space, no installation of a supersonic oscillator is required for the punch.

48. 发明专利

JPS5311696A DEVICE FOR STORING SUPPLIED FILMS 失效
公开(公告)号：JPS5311696A
公开(公告)日：1978-02-02
申请号：JP8497376
申请日：1976-07-19
申请人： YOSHITSUKA SEIKI KK
发明人： YAMAMOTO MASAO
IPC分类号： B65B41/12 , B65B41/00 , B65B41/16

49. 发明专利

JP2938764B2 失效
公开(公告)号：JP2938764B2
公开(公告)日：1999-08-25
申请号：JP23252294
申请日：1994-09-02
申请人： YOSHITSUKA SEIKI KK
发明人： KATAGIRI TAKESHI , YAMAMOTO MASAO , SHIRASAKI SHIRO
IPC分类号： B30B11/00 , B30B15/30

50. 发明专利

JP2925929B2 失效
公开(公告)号：JP2925929B2
公开(公告)日：1999-07-28
申请号：JP13804994
申请日：1994-05-27
申请人： YOSHITSUKA SEIKI KK
发明人： YAMAMOTO MASAO , KATAGIRI TAKESHI , SHIRASAKI SHIRO
IPC分类号： B21D37/00 , B30B11/00 , B30B11/02 , B30B15/02

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