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公开(公告)号：EP3628466A1
公开(公告)日：2020-04-01
申请号：EP18917325.5
申请日：2018-11-09
发明人： SORIMOTO,Masanori
IPC分类号： B29C45/44
摘要： A undercut processing mechanism includes: a sliding piece (50) having a molding core (60) for molding an undercut portion (PI); a holder (20) having a guide for guiding the sliding piece (50) so that a molding core (60) is detached from the undercut portion (PI); and a retaining piece (30) slidably accommodated in the holder (20) and slidably engaged with the sliding piece (50). One of the holders (20) and the retaining piece (30) can advance/retract relative to the other thereof. The retaining piece (30) has a first engagement element and a second engagement element to be engaged with the sliding piece (50). The sliding piece (50) is guided via the first engagement element and the second engagement element so that the molding core (60) is detached from the undercut portion (P1) and moves away from the molded product (P).
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公开(公告)号：EP3599071A1
公开(公告)日：2020-01-29
申请号：EP19187637.4
申请日：2019-07-22
发明人： SORIMOTO, Masanori
摘要： An undercut processing mechanism 10 includes: a core pin 11 for forming an inner circumferential surface of a tubular projection P1; a slide core 31 for forming an outer circumferential surface of the tubular projection P1; a sliding piece 41 for causing the core pin 11 to advance/retract in an axial direction of the tubular projection P1; a retaining piece 51 for causing the sliding piece 41 to advance/retract; a holder 61 for accommodating the retaining piece 51 such that the retaining piece 51 can advance/retract; and a movement amount restrictor for restricting a movement amount of the core pin 11. The retaining piece 51 is operable to advance/retract in a state where a stationary die 100 and a movable die 200 are closed. When the core pin 11 retracts in conjunction with retraction of the retaining piece 51 and a movement amount of the core pin 11 reaches a restricted distance, the core pin 11 and the slide core 31 retract together, thereby allowing an undercut portion to be demolded.
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公开(公告)号：EP3235618A1
公开(公告)日：2017-10-25
申请号：EP17150308.9
申请日：2017-01-04
发明人： SORIMOTO, Masanori
CPC分类号： B29C33/44 , B29C43/42 , B29C43/50 , B29C45/4435 , B29C45/4471 , B29C2043/503
摘要： An undercut processing mechanism includes: a molding core 40 for forming an undercut portion P1; an inclined pin 41 slidable in a first direction inclined relative to a die opening direction of a molding die 1 during the removal of a molded product P from the die; and a guide rail 44a for guiding the movement of the inclined pin 41. The inclined pin 41 has a slide block 43 movable in contact with the guide rail 44a. The guide rail 44a is so formed as to contact the slide block 43 over the entire stroke of the inclined pin 41 so that the first direction of movement of the inclined pin 41 may be regulated, and is also so formed as to have a shape of a high bending rigidity in a particular direction of the slide block 43.
摘要翻译： 底切处理机构包括：用于形成底切部分P1的模芯40; 在从模具取出成形品P时，相对于成形模具1的开模方向倾斜的第一方向的倾斜销41， 以及用于引导倾斜销41的移动的导轨44a。倾斜销41具有可与导轨44a接触地移动的滑块43。 导轨44a被形成为在倾斜销41的整个行程上接触滑块43，从而倾斜销41的第一移动方向可以被调节，并且也被形成为具有 在滑块43的特定方向上的高弯曲刚度。
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公开(公告)号：EP4177037A1
公开(公告)日：2023-05-10
申请号：EP21940030.6
申请日：2021-09-21
摘要： A molding mold (1) in which gates are provided at outlets of runners (Ra and Rb) and connected to cavity portions and a molding material is fed from inlets of the runners (Ra and Rb) to fill the cavity portions to mold molded products (Pa and Pb) includes gate cutters (51a and 51b) attached so as to be able to advance/retract, and the gate cutters (51a and 51b) are attached such that advancing/retracting directions thereof intersect axes connecting the inlets and the outlets of the runners (Ra and Rb).
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公开(公告)号：EP3326779A1
公开(公告)日：2018-05-30
申请号：EP17203990.1
申请日：2017-11-28
发明人： SORIMOTO, Masanori
CPC分类号： B29C45/401 , B29C45/40 , B29C45/44 , B29C2045/4094 , B29C2045/445
摘要： A projection mechanism (41, 42, 43) of a molding die (1, 2, 3) configured to mold a molded article by a fixed-side die (12) and a movable-side die (21), the projection mechanism (41, 42, 43) including: a projection pin (45) using a reaction force of a spring as a drive source; and a first spring (51, 52) and a second spring (55) configured to project the projection pin (45), wherein the first spring (51, 52) has a maximum reaction force in a die clamping state, and projects the projection pin (45) while gradually reducing the reaction force in a projection process, and the second spring (55) projects the projection pin (45) with a constant reaction force while projecting the projection pin (45) from the die clamping state, where stop of movement of the second projection pin (45) during the projection process causes compression of the second spring (55) to increase the reaction force of the second spring (55), thereby energizing the projection pin (45) to further project the projection pin (45).
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公开(公告)号：EP2223788A1
公开(公告)日：2010-09-01
申请号：EP08855522.2
申请日：2008-11-25
发明人： SORIMOTO, Masanori
IPC分类号： B29C33/44
CPC分类号： B29C45/4435 , B22D17/2236 , B29C45/4421 , B29L2031/565 , Y10S425/058
摘要： An undercut processing mechanism can facilitate punching-out of undercut portions having various shapes spreading in the circumferential direction on the inside of a molded article. Split cores (61) that form an undercut molding core (60) are supported one by one at the leading end of slide members (50) disposed radially to face the center axis of an undercut portion (P3). Each slide member (50) is housed in a holder (40) so as to be slidable between a molding position where the split cores (61) are mutually disposed in the entire circumferential direction and a demolding position where the split cores (61) are mutually reduced in diameter. The holder (40) is provided with a guide member (46) for guiding each slide member (50) to move simultaneously in the punching-out direction parallel to the center axis of the undercut portion (P3) and in the direction escaping from the undercut portion (P3) toward the center axis of the undercut portion (P3), respectively, along an inclination direction from the molding position toward the demolding position.
摘要翻译： 底切处理机构能够有助于在成形品的内侧沿圆周方向扩展各种形状的底切部的冲孔。 形成底切成形芯（60）的分割芯（61）在径向配置在与切削部（P3）的中心轴线相对配置的滑动部件（50）的前端一个接一个地支撑。 每个滑动构件（50）容纳在保持器（40）中，以便能够在分离芯体（61）在整个圆周方向上相互配置的模制位置和分离芯部（61）之间的脱模位置之间滑动 直径相互减小。 保持架（40）设置有引导构件（46），用于引导每个滑动构件（50）沿与切口部分（P3）的中心轴平行的冲孔方向同时移动，并且沿着从 底切部分（P3）分别沿着从模制位置朝向脱模位置的倾斜方向朝向底切部分（P3）的中心轴线。
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公开(公告)号：EP3978218A1
公开(公告)日：2022-04-06
申请号：EP20861707.6
申请日：2020-04-20
发明人： SORIMOTO, Masanori
摘要： Provided is a sliding mechanism capable of moving a slider in at least two different directions with a simple structure. The sliding mechanism includes a guide body including a guide unit configured to guide a slider in predetermined directions; and the slider is guided by the guide unit to move in the predetermined directions. The predetermined directions at least include a first direction and a second direction which are different from each other, and the guide unit at least includes a first guide unit configured to guide the slider in the first direction and a second guide unit configured to guide the slider in the second direction.
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公开(公告)号：EP3461612A1
公开(公告)日：2019-04-03
申请号：EP17903143.0
申请日：2017-03-27
发明人： SORIMOTO,Masanori
摘要： Provided are an undercut processing mechanism that can be configured to be compact but can easily demold an undercut portion and can improve molded article quality; a molding die assembly; and a molded article. An undercut processing mechanism 10 that is used in a state attached to a molding die assembly 1 configured to form a molded article P having an undercut portion P1 so as to allow demolding of the undercut portion P1, the undercut processing mechanism 10 including : a pushing piece 30 movable in a demolding direction of the molded article P; a sleeve pin 60 fixed to the pushing piece 30 or formed so as to be integrated with the pushing piece 30 and capable of supporting the undercut portion P1 during movement of the pushing piece 30; a sliding piece 40 configured to be slidable relative to the pushing piece 30 and to move, in conjunction with movement of the pushing piece 30, in a direction intersecting the demolding direction of the molded article P; and a retaining piece 50 configured to retain the sliding piece 40 such that the sliding piece 40 is slidable.
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10.发明公开
公开(公告)号：EP3461611A1
公开(公告)日：2019-04-03
申请号：EP17906426.6
申请日：2017-04-17
发明人： SORIMOTO,Masanori
摘要： Provided is a retaining unit that can be easily assembled with a die and has high versatility. Further, provided are a retaining unit that can be compactly assembled with a die, an ejection mechanism of a molding die assembly including the retaining unit, a fixed-side die, a movable-side die, a molding die assembly, and a molded article. The retaining unit includes a movable ejector pin 10, a ring-shaped member 11 used while being fixed in an unmovable state, and a ball plunger 12 attached to the ring-shaped member 11, and configured to press the ejector pin 10 and engage the ejector pin 10 with the ring-shaped member 11, wherein, when a force at a predetermined level or higher is applied in the movement direction of the ejector pin 10, the engagement with the ring-shaped member 11 is released so that the ejector pin 10 is allowed to move, and the ball plunger 12 is assembled with the ring-shaped member 11 so as to be unitized together.
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