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53. 发明专利

JPH07256735A APPARATUS AND METHOD FOR PRODUCING CONTINUOUS MOLDED PRODUCT 失效
公开(公告)号：JPH07256735A
公开(公告)日：1995-10-09
申请号：JP7380594
申请日：1994-03-22
申请人： OGAWA KAZUO
发明人： OGAWA KAZUO
IPC分类号： B29C49/50 , B29C49/00
摘要： PURPOSE:To simply separate and produce individual moving pots from a connected molded object wherein the moving pots are molded in a connected state. CONSTITUTION:A mold 15 performs the continuous blow molding for a connected molded object 21 wherein moving pots 19 are connected. The connected molded object 21 discharged from the mold 15 and supported by the mold 15 is grasped by first and second grasping parts 29, 31 and the second grasping part 31 is drawn down. The first grasping part 29 is also together displaced so as to follow the displacement of the second grasping part 31 to separate the connected molded object 21 from the mold 15. In this displacement process, the first grasping part 29 is stopped by an engaging piece 47 and only the second grasping part 31 is further displaced to open the first and second grasping parts 29, 31 and the connection parts of the connected molded object 21 are torn to obtain individual moving pots 19.

54. 发明专利

JPH07125058A HOLE FORMING METHOD OF BLOW MOLDED PRODUCT 失效
公开(公告)号：JPH07125058A
公开(公告)日：1995-05-16
申请号：JP29911993
申请日：1993-11-05
申请人： DAINIPPON PRINTING CO LTD
发明人： AIZAWA HISASHI
IPC分类号： B29C49/48 , B29C49/04 , B29C49/42 , B29C49/50
摘要： PURPOSE:To reduce a perforation process after molding and to prevent cut refuse from remaining by thrusting out a drill member into a cavity in good timing when air is blown in a-molding material to drill a hole in the expanded molding material. CONSTITUTION:A tubular parison is extruded from a die 2 to be held between molds 1 and air is blown in the parison from a air blow-in port 8 to expand the parison along the inner walls of the molds. At the same time, a drill member 5 is thrust out to the interior of a cavity 7 in good timing by a cylinder 7 to drill a hole in an expanded molding material 9 on the way of molding. After cooling. the molding material 9 is taken out.

55. 发明专利

JPH06320610A BLOW MOLD 失效
公开(公告)号：JPH06320610A
公开(公告)日：1994-11-22
申请号：JP9899893
申请日：1993-03-18
申请人： HIRANO YUKIO
发明人： HIRANO YUKIO
IPC分类号： B29C49/30 , B29C49/04 , B29C49/48 , B29C49/50 , B29C49/66
摘要： PURPOSE:To separate a product from a pinch-off part and remove the product in a product form at the completion of molding to raise a molding efficiency by providing a slidable molding part inside the pinch-off part for pinching off a blow molded product. CONSTITUTION:A blow molding material is set between molding parts. An outer pipe is closed. Air is blown through an inner pipe. The material is inflated to come into close contact with the molding parts to be molded into a product shape. The outer pipe is opened, and air is blown through the inner pipe for cooling the product from its inside. A pressing plate 6 is pressed by a molding machine pin 20 so as to reduce a gap 16. Simultaneously, a spacer pin 8 is also moved. The other molding part is moved together with the product through the spacer pin 8 so as to reduce a gap 15. In this manner, a mold body is fixed, and only the molding parts are moved, whereby the product is shifted from a pinch-off part to be cut off. By opening the mold, the product can be separated and removed from an excessive material plastic.

58. 发明专利

JPH06210713A BURR REMOVING DEVICE OF BLOW MOLDING MACHINE 失效
公开(公告)号：JPH06210713A
公开(公告)日：1994-08-02
申请号：JP665393
申请日：1993-01-19
申请人： UBE INDUSTRIES
发明人： NISHIMURA TAKAFUMI , KOHAMA YUKINORI , KANO YOSHIAKI
IPC分类号： B29C49/50 , B29C49/72 , B29L22/00
摘要： PURPOSE:To cut and remove the burr of the parison protruding from a mold at the time of the full closing of the mold in a blow molding machine producing a hollow resin product from the parison. CONSTITUTION:A cutter 10 advancing and retreating in the horizontal direction traversing the mating surfaces of both molds 3, 3 of a blow molding machine 1 and the advance and retreat means (air cylinder) 20 of the cutter 10 are arranged to the lower end parts of the molds 3, 3.

60. 发明专利

JPH06190907A MOLDING DEVICE FOR HOLLOW MOLDED PRODUCT WITH OPENING 失效
公开(公告)号：JPH06190907A
公开(公告)日：1994-07-12
申请号：JP34411092
申请日：1992-12-24
申请人： MORIMOTO SHIGEO
发明人： MORIMOTO SHIGEO
IPC分类号： B29C49/04 , B29C49/50 , B29L22/00
摘要： PURPOSE:To mold an opening accurately when a sheet is used for molding and cut off easily a flash at the time of molding by forming a main body of a hollow molded product by blowing air from an air blow opening of an opening section molding die in the state of closing a mold for blow molding. CONSTITUTION:An extruder 1 for extruding a couple of sheets S in parallel and an opening section molding male mold 2 with an air blow opening 2A at the end are provided. An opening section molding female mold 3 of split structure for the sheets S and a mold 4 for blowing molding of split structure for pinching the sheets S are provided. The opening section molding male mold 2 is inserted between a couple of sheets S extruded out of an extrusion molding machine 1, and an inner diameter section and an outer diameter section of a hollow molded product are formed by closing the opening section molding female mold 3 and using the opening section molding male mold 2 and the opening section molding female mold 3. Then the blow molding mold 4 is closed and air is blown from an air blow-in opening 2A to form a main body of the hollow molded product.

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