| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 101 | Flask unit and cope-and-drag molding machine and line | US11921736 | 2006-06-02 | US20090095437A1 | 2009-04-16 | Minoru Hirata |
| A flask unit for producing a cope and a drag that are stacked, comprising at least two uprightly disposed connecting rods (4), a cope flask slidably fitted on the connecting rods and formed with a molding sand blowing-in port in one of its sides, and a drag flask slidably fitted on the connecting rods so that it is located under the cope flask to mate it, the drag flask being formed with a molding sand blowing-in port in one of the sides thereof. | ||||||
| 102 | Molding Flask for a Molding Machine and a Molding Process Using the Molding Flask | US10586157 | 2005-01-20 | US20080314545A1 | 2008-12-25 | Minoru Hirata |
| A flask for containing mold sand within it prevents any mold shifting or mold dropping. Each of an upper flask 2 and a lower flask 3 includes a body that defines an opening in which a sand mold is to be molded. The body has at least one inlet 101 for introducing the mold sand into the opening. Two flanges 102 are extended from the body such that they are opposed to each other across the opening. Each flange has a through bore. The flask also includes engaging members for engaging an actuator in the outside of the flask such that a force or forces from said actuator could be transmitted to the flask. An upper flask 104 and a lower flask 105 are opposed to each other across a pattern plate 107. They are integrally assembled to make a flask unit by means of a pair of connecting rods 106 that are fitted in each bore. | ||||||
| 103 | Flaskless molding machine | US11896415 | 2007-08-31 | US20080289792A1 | 2008-11-27 | Minoru Hirata; Takayuki Komiyama; Toshihiko Oya; Tsuyoshi Sakai; Koichi Sakaguchi |
| The disclosed invention provides a molding machine that defines upper and lower molding spaces while cope and drag flasks 12,13 and a match plate 11 clamped therebetween are rotated from a horizontal position to a vertical position, and that readily places a core into a lower mold within the drag flask. An upper squeeze member 14 is insertable into the cope flask 12 with its pressure-applying plane being opposed to the upper face of the match plate 11. The pressure-applying plane defines an upper molding space together with the upper face of the match plate 11 and the cope flask 12. A pivoting frame 23 supports the cope and drag flasks 12,13, a match plate 11 clamped therebetween, and the upper squeeze member 14, such that they rotate in unison between a horizontal position, in which the pressure-applying plane of the upper squeeze member 14 is oriented vertically downward, to a vertical position in which the pressure-applying plane is oriented horizontally. A fixed, vertical, filling frame abuts the drag flask 13 when the flasks 12, 13 and the match plate 11 that is clamped therebetween are in the vertical position. A lower squeeze member 16 has a pressure-applying plane that is oriented horizontally, and is insertable into the filling frame and the abutting drag flask 13. The pressure-applying plane of the lower squeeze member 16 defines a lower molding space together with the lower face of the match plate 11, the drag flask 13, and the filling frame 15. To place a core into a lower mold within the drag flask, the drag flask 13 is laterally moved from a position that is immediately beneath the cope flask 12 such that an open working space is provided. | ||||||
| 104 | Method and apparatus for molding an upper and a lower mold having no flask, and a method for replacing a match plate used therefor | US10582965 | 2004-12-17 | US20070151694A1 | 2007-07-05 | Minoru Hirata; Takayuki Komiyama |
| These inventions intend to provide an improved method and apparatus for molding molds having no flask. A match plate is put between an upper and a lower flask having intakes for foundry sand. An upper and a lower molding space are defined by inserting an upper and a lower squeeze means into openings of a pair of the upper and the lower flask having no match plate, and a pair of the upper and the lower flask and the match plate are rotated and moved so that they become perpendicular, and are moved so that the intakes of the flasks move upward. The upper and the lower molding space are filled with the foundry sand. The foundry sand in the molding space is squeezed by squeezing means. A pair of the flasks and the match plate are rotated so that they become horizontal. Then the match plate is removed. While the preceding processes are being carried out, if necessary the core is installed between the molds, the flasks are matched to each other, and the molds are removed from the pair of flasks. | ||||||
| 105 | Vertical boxless mould casting machine | US10479437 | 2001-06-01 | US07007738B2 | 2006-03-07 | Ignacio Goya Arcelus |
| The molding machine comprises a station (1) with a chamber (2) that is closed between a front plate (5) that can move and swivel and a rear plate (8) associated to an extraction piston (9), forming a shell (3) in said chamber (2) by blowing sand through an upper hopper (4). The shell (3) obtained is pushed by the piston (9) until the rear of a row of shells (3′) placed on a conveyor (7) that places them opposite a casting station. The motion of the shell (3) pushed by the extraction piston (9) is independent of the motion of said piston after being incorporated in the row of shells, and is provided exclusively by the conveyor system (7), thereby providing a shorter working cycle while preventing deterioration of the shells as they are not compressed by the piston (9) when it pushes against the rear of the row of shells (3′). | ||||||
| 106 | Apparatus for producing casting mould parts | US10239402 | 2000-03-31 | US06942008B1 | 2005-09-13 | Ole Anders Jacobsen; Vagn Mogensen |
| The present invention provides an apparatus for producing casting mould parts by compacting mould material between a first squeeze plate and a second squeeze plate forming movable end walls of a moulding chamber, which subsequent to the compacting can be opened by moving the second squeeze plate out of the way, after which the mould part can be pushed out of the moulding chamber by a further movement of the first squeeze plate in its compacting direction, the movement of the first squeeze plate being provided by a hydraulic drive unit comprising a movable cylinder member connected to the first squeeze plate and an associated stationary piston member having a piston rod extending tightly through an inner wall of the cylinder member and a piston. The movable cylinder member is guided in its linear movement by the piston and by the piston rod. By further providing supplementary means for guiding the movable cylinder member, it is possible to reduce the sag of the piston rod and cylinder member, when the cylinder member is advanced to the full extent to push out the produced mould part and improve the rigidity of the first squeeze plate against tilting movement during compacting. | ||||||
| 107 | Sand moulding machine with improved sand blow | US10470302 | 2001-02-07 | US06871689B2 | 2005-03-29 | Erik Nyholm Sørensen |
| Moulding machine (1) for the moulding of sand moulds (4, 5) by blowing sand in through slitshaped openings (14, 15) extending across each side plate (16, 17) of a moulding box (6, 7). Into the boxes (6, 7) extend moulding patterns (12, 13). At least one of the end parts (18, 19) of the slitshaped openings has a greater width than the central part (20, 21) thereof. When the sand is blown in through the openings (14, 15) a greater amount of sand is achieved at the peripheral region of the boxes (6, 7) than when the end parts has no greater width than the central part of the opening. Consequently, by the present solution is achieved a greater hardness of the squeezed sand moulds at the peripheral region than by the prior art solutions. | ||||||
| 108 | Method of controlling the movements of the squeeze plates of a string moulding apparatus | US10271538 | 2002-10-17 | US06588488B2 | 2003-07-08 | Ole Anders Jacobsen; Kaj Jørgen Jensen; Jan Bechmann Johansen; Vagn Mogensen |
| An apparatus for controlling the movements of the squeeze plates of a string moulding apparatus where the apparatus generally includes a moulding chamber defined between two squeeze plates. One of the squeeze plates can be pivoted to open the moulding chamber. The production cycle of the apparatus includes, apart from the charging of the chamber with mould material, several movements of the squeeze plates. A movement of one plate commences before the preceding movement of the other plate has finished. The hydraulic system of the apparatus comprises two pumps, one pump for each actuator associated to one of the squeeze plates. | ||||||
| 109 | Mold riding shot blocker | US09758053 | 2001-01-10 | US06520243B1 | 2003-02-18 | Ben A. Dugger |
| The mold riding shot blocker comprises an apparatus and method for blocking the spillage of molten metal between adjacent molds in a conveyable string of closely juxtaposed molds as the mold string is advanced in a stepwise cycle in a metal casting process. The invention comprises a solid object having a configuration suitable for placement on the top surface of a mold string to cover at least one downsprue extending from the top surface, and a means for lowering the solid object onto the top surface of a mold string to cover at least one downsprue and raising the solid object from the top surface to uncover at least one downsprue. The method comprises the steps of positioning a solid object for placement on the top surface of a mold string, lowering the solid object into a protective position on a top surface of the mold and indexing the conveyable mold string with the solid object riding on the mold string in a protective position covering at least one downsprue. | ||||||
| 110 | Pouring method and plant therefor | US77550 | 1998-06-01 | US6148898A | 2000-11-21 | Eric Sjodahl; Soren Nilsson |
| A pouring method and a pouring plant are described. Mould sections (15) are produced piecewise with cavities at two opposite ends thereof. The mold sections are combined in a line (15A-15D), wherein the cavities define a mold cavity (15a) having an exposed pour cup (30). The line of mold sections is advanced incrementally by drive means (16, 162) through an increment length that corresponds to the length of the mold sections (15), to and through a molding station (50). The true lengths of the produced sections (15) are measured and registered. The difference in length between the first mold section (15D) in the line (15A-15D) that lies immediately upstream of a pour cup (30), where a pouring operation was last carried out, and the last mold section (15A) in the line is calculated. The pouring machine (20) is moved from its latest pouring position along the line through a distance corresponding to this length difference while the line (15A-15D) is advanced towards the pouring station (50) to an end position (18) of the line advancing means (16, 162). | ||||||
| 111 | Sealing device for an-inlet of a sand mold | US535180 | 1996-01-16 | US5690160A | 1997-11-25 | Thomas Leonard Sutton; John Campbell; Michael Joseph Flynn; Gary McBain |
| A sand mould has a filling inlet defined by a solid insert (7). The insert provides a flat outer face for sealing and subsequently heat exchanging sliding contact with a sealing face of a chill plate (11). The mould is filled through the insert and then closed by means of the chill plate. | ||||||
| 112 | Tie rod assembly for sand molding machine | US35286 | 1993-03-22 | US5413013A | 1995-05-09 | George Zambo |
| A sand molding machine comprises an elongated tie rod with a removable bearing sleeve portion at its distal end. The distal end of the rod where the sleeve is attached has a reduced diameter end spindle portion with multiple stepped support sections on its outer surface. The sleeve is of generally hollow cylindrical configuration and fits over the spindle end portion of the rod. The sleeve has an outward cylindrical bearing surface, and an inward surface with stepped support sections corresponding to and contacting the outside support sections on the rod when the sleeve is attached. The respective supporting sections on the rod and the sleeve provide a strong tight attachment of the sleeve to the rod without requiring excessive force in order to attach and/or remove the bearing from the rod. | ||||||
| 113 | Method of and apparatus for producing a series of casting molds or mold parts | US934458 | 1992-09-14 | US5332025A | 1994-07-26 | Jens P. Larsen |
| In producing casting molds or mold parts by compacting mold sand in a molding chamber between two pattern plates, the volume of the molding chamber is measured and/or computed, such as by using sensors and a timer/controller capable of computing, before and after the compacting step. The values obtained are used to calculate a compaction ratio which is compared with a desired compaction ratio as a basis for making adjustments to the starting conditions, before the next mold or mold part is produced. In this manner it is possible to achieve a continuous correction of the compacting ratio to form correctly sized molds or mold parts in a series. | ||||||
| 114 | Method for production of single-use foundry molds and apparatus for realization thereof | US656166 | 1991-03-29 | US5161603A | 1992-11-10 | Anatoly A. Volkomich; Nikolai K. Chernyshev; Gennady I. Bobryakov; Georgy M. Orlov; Boris P. Blagonravov; Garegin S. Garibian; Nikolai I. Bekh; Anatoly I. Yakobson; Vladimir I. Sivko; Adolf V. Korchin; Valentin F. Mitrofanov; Valery A. Svechnikov |
| A molding chamber (7) accommodating pattern plates (24, 25) is supplied by a steam of air with sand mixture delivered in a direction parallel to the pattern plates (24, 25). After a time delay relative to the start of the sand delivery operation, and sand mixture is preliminarily compacted by delivering a stream of compressed air directly into the molding chamber in a direction parallel to the pattern plates, the delivery of compressed air being continued within a period of time equal to 5 to 30 percent of the duration of the sand mixture delivery operation. As a result of the delivery of compressed air, the delivery of the sand mixture is retarded and even interrupted. The stream of compressed air diverts the sand mixture in the molding chamber towards the pattern plates, thus providing a better filling of narrow deep hollows on pattern surfaces and preliminary compaction of the sand mixture. The sand delivery operation is completed after the end of the preliminary compaction. The sand mixture is finally compacted by mechanical pressing. | ||||||
| 115 | Method of charging sand and molding machine utilizing thereof | US722426 | 1991-06-27 | US5148851A | 1992-09-22 | Yutaka Murata |
| Sand is charged into a space in a mold flask by a sand feed nozzle provided on the lower end part of a blow head inserted into a sand charge port formed in the top wall of the mold flask. The blow head is further lowered after completion of the charging so as to deeply insert the sand feed nozzle in the sand charge port in order to press the sand in the vicinity of the sand charge port within the mold flask, thereby uniformly compacting the entire sand in the space. | ||||||
| 116 | Lining plate for the molding space of flask-less molding machines | US565219 | 1990-08-07 | US4997025A | 1991-03-05 | Harry Post; Karin Schuch |
| A lining plate for the molding space of a molding machine is provided with functional openings such as sand supply openings and air-exhaust openings traversing the lining plate, the latter openings optionally provided with nozzle inserts. The lining plate is subdivided into two plate layers detachably fastened to each other, namely into a wear plate bordering the molding space and a carrier plate supporting the back of the wear plate. The mutually facing larger surface areas of the wear--and carrier plate are kept fully adherent to each other by magnet clamps and are additionally insured, in a detachably form-locking manner, against relative displacement with respect to each other. The lining plate allows a problem-free and comparatively cost-efficient restoration afer wear. | ||||||
| 117 | Apparatus for simultaneous making of matching mould parts with a horizontal parting face | US108829 | 1987-10-07 | US4739820A | 1988-04-26 | Claus T. Jensen; Joern E. Johansen; Haakon Kauserud |
| The apparatus includes a shared pattern carrier (1), to which an upper and a lower half pattern (2, 3) are secured. Moulding chambers (4, 5) are provided above and below the pattern carrier (1), the moulding chambers having movable squeeze plates (6, 7) for post-compacting of the moulding material and forming top and bottom, respectively, in the moulding chambers. The moulding chambers (4, 5) can be impulsively subjected to vacuum for sucking in moulding material (8) through the squeeze plates (6, 7). The moulding material (8) is fed to the lower moulding chamber (5) through an essentially L-shaped down pipe (9), whose upper end (12) is connected with a materials container (10) above the moulding chambers (4, 5), and whose lower end (11) is connected with the squeeze plate (7) in the lower moulding chamber (5). The lower corner (14) of the L-shaped down pipe (9) is provided with at least one air intake opening (13). The air sucked in through the openings (13) reduces friction between the moulding material and the down pipe in the area where the moulding material tends to clot. | ||||||
| 118 | Molding machine for making flaskless molds | US468624 | 1983-02-22 | US4537238A | 1985-08-27 | Michael Achinger; Erhard Jaeger; Reinhold Lipp; Walter Streitenberger |
| The invention discloses a molding machine for making flaskless molds, which has a minimum of structural component groups and units as well as of control devices and adjusting elements. The machine frame is embodied by a closed, symmetrical frame including hollow side parts which receive the pourable molding material and simultaneously perform the functions of tie rods and guidance for the molding flasks. Molding sand blowing-in openings are disposed on the inner walls of the side parts, and the openings are controlled by molding sand openings in the molding flasks in the manner of a valve slide. | ||||||
| 119 | Molding installation for the production of bipartite boxless foundry molds | US159478 | 1980-06-16 | US4461337A | 1984-07-24 | Gunter Muller |
| A molding installation for the production of bipartite-boxless foundry molds, comprises a molding machine with a molding station wherein a cope and a drag are simultaneously shaped and a conveying means by which the cope and the drag are conveyed along in a closed path from the molding station to a joining and stripping station where the cope and drag are recombined and from which they are removed together from the complete foundry mold with the empty molding boxes returned to the molding station while the boxless foundry mold is transferred to a casting line. At least one processing station is provided between the molding station and the joining and stripping station for conducting finishing work, such as the insertion of cores, on at least one of the two molds. The conveying means has linear conveying lanes which are arranges in a superimposed relationship (one above the other) along at least part of their lengths, the molding station and the joining and stripping station being located in the superimposed part of the lanes, an upper of the conveying lanes receives the copes and a lower of the conveying lanes receives the drags and at least the lower conveying lane is extended between the molding station and the joining and stripping station so as to enable inclusion of a number of required processing stations. In one embodiment, the upper lanes and lower lanes are constructed to cause the cope and drag to travel through like rectangular paths, while in other embodiments, the rectangular path through which the drags travel is extended relative to the path through which the copes travel. | ||||||
| 120 | Molding machine | US292034 | 1981-08-11 | US4437507A | 1984-03-20 | Robert J. Seeley |
| A molding machine for producing molds. The machine includes a frame; a squeeze chamber assembly which is rotatably mounted in the frame and includes a squeeze chamber flask in which respective molds are produced; a first pattern mounting block associated with the squeeze chamber assembly and movable relative thereto and to the flask; a first pattern mounted on the first pattern mounting block and facing the flask; a mechanism associated with the squeeze chamber assembly for moving the first pattern mounting block relative to the flask and to the squeeze chamber assembly; a mechanism associated with the frame for rotating the squeeze chamber assembly relative to the frame; a second pattern mounting block operatively connected to the frame and movable relative thereto and into and out of the flask; a second pattern mounted on the second pattern mounting block and facing the flask; a mechanism associated with the frame and the second pattern mounting block for moving the second pattern mounting block relative to the frame and to the flask; and a sand blow chamber assembly having a blow chamber which is in communication with a source of sand and with the flask for supplying sand thereto. | ||||||
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