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1. 发明专利

JPH11300819A RESIN SHEET TRANSFER DEVICE 失效
公开(公告)号：JPH11300819A
公开(公告)日：1999-11-02
申请号：JP11304798
申请日：1998-04-23
申请人： SINTOKOGIO LTD
发明人： SUZUKI ATSUSHI , TOMITA IWAO
IPC分类号： B29C31/08 , B29C51/26
摘要： PROBLEM TO BE SOLVED: To provide a resin sheet transfer device equipped with a resin sheet clamping device which has a certain versatility with respect to the thickness of the resin sheet. SOLUTION: This resin sheet transfer device is equipped with a frame platelike body 1 arranged in a freely movable manner, clamping mechanism 2, 2 mounted on the upper face of the body 1, air cylinders 3, 3 which actuate the clamping mechanisms 2, 2 mounted on the upper face of the body 1 and an air holding mechanism 7 which is connected to the air cylinders 3, 3 mounted on the upper face of the body 1 and can hold a compressed air to be supplied to the air cylinders 3, 3. The compressed air is supplied to actuate the air cylinders 3, 3, then the clamping mechanims 2, 2 are actuated to clamp a resin sheet, and the supply of the compressed air to the air cylinders 3, 3 is maintained.

2. 发明专利

JPH11254517A SHEET-LIKE RESIN MOLDING APPARATUS 失效
公开(公告)号：JPH11254517A
公开(公告)日：1999-09-21
申请号：JP8271398
申请日：1998-03-13
申请人： SINTOKOGIO LTD
发明人： ABETA YUJI , TOMITA IWAO , SUZUKI ATSUSHI
IPC分类号： B29C51/18 , B29C51/42
摘要： PROBLEM TO BE SOLVED: To feed a sheet-like resin in a sheet-like resin molding station from a sheet-like resin supply station even if a feed mechanism has no sheet-like resin grasping mechanism to accurately subject the same to pressure molding. SOLUTION: After a sheet-like resin is raised to a required height by a first sheet-like resin lift device 6, a feed mechanism 4 is moved to the part just under the sheet-like resin. After the sheet-like resin is placed on the feed mechanism by the first sheet-like resin lift device, it is fed to a sheet-like resin heating station 2 by the feed mechanism to be heated. The heated sheet-like resin is fed to a sheet-like resin molding station 3 by the mechanism to be raised by a second sheet-like resin lift device 14 and the feed mechanism is retracted from the sheet-like resin molding station. The sheet-like resin is allowed to fall by the second sheet-like resin lift device to be subjected to pressure molding by a molding apparatus 15.

3. 发明专利

JPH11115042A METHOD FOR HEATING RESIN SHEET AND HEATING DEVICE 失效
公开(公告)号：JPH11115042A
公开(公告)日：1999-04-27
申请号：JP30371997
申请日：1997-10-17
申请人： SINTOKOGIO LTD
发明人： TOMITA IWAO , TOZAKI TAKANOBU
IPC分类号： B29B13/02 , B29C51/08 , B29C51/10 , B29C51/42 , B29K101/12 , B29L7/00
摘要： PROBLEM TO BE SOLVED: To ensure sufficient heat-up even way deep inside a resin sheet and make it possible to supply the sheet to a molding step in a short time by causing plural resin sheets to stand by while heating the resin sheets through staggering time for heating each of the sheets, then taking out the sheets one by one in order of the sheet which is through with a specified heating time, and replenishing a new resin sheet. SOLUTION: A conveyance device 5 unloads a heated resin sheet from a storage shelf 2A and fixes the sheet by needling it on the conveyance device 5. The resin sheet already heated is conveyed to a molding press and then is molded there. During this process, a new resin sheet is set on the storage shelf 2A and a rack 2 descends one stage down. The resin sheet on the storage shelf 2B is through with a heating process and is unloaded to be conveyed to a molding step. During these procedures, a new resin sheet is set on the storage shelf 2B, and the rack 2 descends further one stage down. For the rest, the same operation is performed with the storage shelves 2C-2H, and again the rack 2 ascends to return to the storage shelf 2A. Thus the sequence of the steps to carry in, heat and carry out the resin sheet is continuously performed.

4. 发明专利

JPH09309093A HORIZONTAL TRIMMING DEVICE 失效
公开(公告)号：JPH09309093A
公开(公告)日：1997-12-02
申请号：JP15312996
申请日：1996-05-24
申请人： SINTOKOGIO LTD
发明人： TOMITA IWAO , KATOU HACHIROU , TAMADA TAKAO , ABETA YUJI , ITAKURA HIROYUKI
IPC分类号： B26D7/01 , B26D1/14 , B29C37/02
摘要： PROBLEM TO BE SOLVED: To safely and automatically perform horizontal trimming of a resin molded product, by providing a cutter means having a rotary circular saw blade mounted in a lower end of a rotary drive shaft and a guide disk formed a little smaller than a diameter of the rotary circular saw blade. SOLUTION: A cylinder 14 is extension operated, a resin molded product S on a table 8 is press fixed by a pressing plate 17, also a rotary circular saw blade and a guide disk are rotated, and an actuator 30 is contraction pull operated, a horizontal arm 29 is turned, the rotary circular saw blade is made to cut in the resin molded product S, the guide disk is brought into contact with the resin molded product S. In this condition, a rotational angle of a rotary shaft 28 is detected by an angle sensor, at a rotational speed corresponding to the rotational angle, a variable speed motor 11 is actuated, the table 8 is rotated, so as to advance trimming of the resin molded product S.

5. 发明专利

JPH09109243A SHEET-LIKE RESIN MOLD FACILITY 失效
公开(公告)号：JPH09109243A
公开(公告)日：1997-04-28
申请号：JP29760595
申请日：1995-10-20
申请人： SINTOKOGIO LTD
发明人： TOMITA IWAO , TAMADA TAKAO
IPC分类号： B29C51/26
摘要： PROBLEM TO BE SOLVED: To make it possible to retreat a moving member even on the way of press molding sheet-like resin from a press molding machine by horizontally rotating the rotary member of the moving member to a specific angle, opening the one side of the body of the moving member, and passing the one side through the upper and lower molds during press molding. SOLUTION: The cylinder 26 of a gripping mechanism 23 is extended to grip the peripheral edge of a sheet-like resin by a moving member and a pawl member 28, the resin is heated to be softened as it is, and the resin and the member are conveyed to a press molding machine. Then, the cylinder is extended to raise a lower mold and to lower an upper mold to press mold the heated and softened sheet-like resin. Thereafter, after a predetermined time is elapsed, the cylinder 26 is contracted, the member 28 is opened, the mechanism 23 is separated from the resin, the cylinder 26 is contracted, the rotary member of the moving member is horizontally rotated at 90 degrees to open the one side of the body 22a of the moving member. Then, the opening of the opened body 22a is passed through the upper and lower molds during the press molding.

6. 发明专利

JPH07256390A EQUIPMENT FOR RECONDITIONING MOLDING SAND 失效
公开(公告)号：JPH07256390A
公开(公告)日：1995-10-09
申请号：JP7415294
申请日：1994-03-18
申请人： SINTOKOGIO LTD
发明人： TOMITA IWAO , ISONO AKIO , MURATA TAKESHI , AOKI YUKINORI
IPC分类号： B22C5/04 , B22C5/02
摘要： PURPOSE:To efficiently recondition the molding sand by pressing a roller in the direction of an inclined circumferential wall with constant pressure. CONSTITUTION:A sand falling port is providled on the lower end of a funnel- shaped chute to feed the molding sand, and a rotary drum 5 is provided on the lower part of the molding sand feeding chute in the horizontally rotatable manner. An inclined circumferential wall 5B extending diagonally upward and outward from the circumferential end of a circular bottom plate 5A and a gate 5C stretching inward from the upper end are connected to the rotary drum 5. One or more rollers 14 are arranged in the rotary drum 5 orthogonal to the inclined circumferential wall 5B with a slight space therebetween. A roller pressurizing mechanism P is connected to the rollers 14, and the roller 14 are pressed in the direction of the tilted circumferential wall 5B with constant pressure thereby. This constitution can keep the constant force to be applied to the sand layer even when the rollers are worn.

7. 发明专利

JPS5592265A INGATE CUTTOFF DEVICE 失效
公开(公告)号：JPS5592265A
公开(公告)日：1980-07-12
申请号：JP84879
申请日：1979-01-06
申请人： SINTOKOGIO LTD
发明人： IKEGAMI SOUICHIROU , YAMAMOTO SHIGEAKI , TOMITA IWAO
IPC分类号： B22D31/00
摘要： PURPOSE:To cut off the ingate automatically without requiring hard labor under severe environments, by providing a movable plate above a cast product supporting table, and, in the lower face thereof, a plurality of positioning pins to be inserted into the cast product hole parts and pawl members abutting against the runner thereof in the downward direction. CONSTITUTION:A specified cast product a is guided and supported on a table 9 by means of a member 11, and is caused to slide by the forward movement of a piston 30 to stop and position a sprue d on an arm 32. As a piston 35 moves forward, a cutter 40 is pressed against the upper part of the notch groove in the sprue d from the side, and the sprue upper side is cut and removed. When, a moving plate 14 is lowered, and a positioning pin 22 is inserted into a hole b in the cast product to correct the positional deviation of the cast product, then each pawl member 23 is abutted and pressed on the sprue e correctly positioned downwards. Each ingate c is cut off the notch groove in the cast product main body connecting part, and the sprue d and the runner e containing the remainder of each ingate c are separated simultaneously. These pieces are further divided by the pawl members and recovered, and the cast product is discharged after rising of the movable plate 14.

8. 发明专利

JPH09183154A APPARATUS FOR MOLDING RESIN SHEET 失效
公开(公告)号：JPH09183154A
公开(公告)日：1997-07-15
申请号：JP35253895
申请日：1995-12-28
申请人： SINTOKOGIO LTD
发明人： ABETA YUJI , TAMADA TAKAO , TOMITA IWAO
IPC分类号： B29C51/08 , B29C51/26
摘要： PROBLEM TO BE SOLVED: To provide an apparatus which can transfer a resin sheet at a heating station and a molding station without using a carrying member carrying the resin sheet by holding the peripheral edge part of the resin sheet and can forward the resin sheet from the heating station to the molding station and exhibits good yield of the resin sheet. SOLUTION: Upper and lower shielding mechanisms 24 and 25 are provided on upper and lower heating mechanisms 20 and 21 and the first carrying plate 30 which a resin sheet can be placed on and is highly heat-conductive is arranged horizontally movably between the upper and lower heating mechanisms 20 and 21 and the upper and lower shielding mechanisms 24 and 25 and the second carrying plate 44 which a resin molded article can be placed on is arranged horizontally movably between upper and lower molds 36 and 34. A holding mechanism 46 which can hold one side part of the resin sheet on the first carrying plate 30 is mounted on the first carrying plate side of the second carrying plate 44 to carry the resin sheet so as to keep the original shape without softening the whole peripheral edge part by heating.

9. 发明专利

JPH08257679A DEVICE FOR CONTINUOUSLY KNEADING MOLDING SAND 失效
公开(公告)号：JPH08257679A
公开(公告)日：1996-10-08
申请号：JP9148895
申请日：1995-03-24
申请人： SINTOKOGIO LTD
发明人： TOMITA IWAO , ISONO AKIO
IPC分类号： B22C5/04 , B01F7/04 , B01F15/04
摘要： PURPOSE: To provide a device for continuously kneading molding sand which can discharge by satisfying the necessary kneading degrees to the whole sands of the sand at the initial stage, the sand at the middle stage and the sand at the finishing stage of the kneading. CONSTITUTION: A cylinder 16 for opening/closing the cover 10 of a discharging hole 3 is connected with fluid circuits attaching a pressure reducer 23, and a solenoid change-over valve 22 in the fluid circuits is electrically connected with a control panel 24 transmitting a signal by detecting the load power value of a driving motor 7 to constitute the molding sand continuous kneading device.

10. 发明专利

JPH07223038A DEVICE FOR RECONDITIONING MOLDING SAND 失效
公开(公告)号：JPH07223038A
公开(公告)日：1995-08-22
申请号：JP3774394
申请日：1994-02-10
申请人： SINTOKOGIO LTD
发明人： TOMITA IWAO , ISONO AKIO
IPC分类号： B22C5/02 , B22C5/04
摘要： PURPOSE:To keep an extent of reconditioning of molding stand to a specific range and use consumable parts for a long time by confirming the wear extent of a roller with the loaded ampare of a metal for driving a rotary drum even if the roller gradually wears, shifting the roller in the circular direction of the rotary drum and adjusting gap between the roller and the side wall of the drum. CONSTITUTION:At the time of supplying used sand into a sand supplying chute 3 in the condition of rotating the rotary drum 5 by driving the motor 10, the fixed quantity of the used sand is supplied on around the bottom plate 5A of the rotary drum 5 from gap between an opening part 4 for dropping the sand and a cover member 14. The used sand is moved outerward by centrifugal force of the rotary drum 5 and further, piled up on the inner surface of an inclined peripheral wall 5B while being pushed by the centrifugal force and when this thickness is thicker than the gap between the inclined peripheral wall 5B and the roller 25, the roller 25 starts rotation by friction force with the used sand. Further, with the lapse of time, sand layer S is increased to more thicker and run over a weir 5C. Thereafter, the sand layer is kept to the fixed thickness almost equal to the width of the weir 5C.

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