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51. 发明专利

JPH09182934A DEVICE AND METHOD FOR MANUFACTURING PLURAL CORE 失效
公开(公告)号：JPH09182934A
公开(公告)日：1997-07-15
申请号：JP31499096
申请日：1996-11-26
申请人： GEORG FISCHER DISA INC
发明人： NAGARWALLA PHEROZE J , WITTE RAYMOND F , HENDRIE SCOTT
IPC分类号： B22C5/00 , B22C13/12 , B22C15/24
摘要： PROBLEM TO BE SOLVED: To improve productivity by increasing the number of cores manufactured per one cycle in a horizontal split type core manufacturing machine. SOLUTION: A core box structure 23 is provided with a lower side core box 32 and an upper core box 40 over it. The lower side core box 32 is composed of a lower side cope 33 and a lower side drag 35 under it, and a lower side cavity 38 is formed with both components. The upper core box 40 is composed of an upper side cope 41 and an upper drag 44 under it, and an upper side cavity 47 is formed with both components. A passage 50 penetrating the upper core box 40 and extending to the lower core box 32 is provided, and sands being a core material are fed to both cavities 38 and 47 through the passage 50. After cores are hardened, the core box structure 23 is opened and cores are taken out.

52. 发明专利

JPH0857579A RECLAIMING METHOD OF RECLAMATION SAND AND ITS EQUIPMENT 失效
公开(公告)号：JPH0857579A
公开(公告)日：1996-03-05
申请号：JP21796094
申请日：1994-08-19
申请人： SINTOKOGIO LTD
发明人： NISHIDA OSAMU , UMEDA KOJI , TOMITA IWAO
IPC分类号： G01N21/47 , B22C1/00 , B22C5/00 , B22C5/04
摘要： PURPOSE: To surely and easily execute reclaiming of reclamation sand by measuring the light intensity reflected from reclamation sand, operating the deviation between intensity of reflected light and intensity of reflected light of the target molding sand and driving a sand reclamation device in response to the deviation. CONSTITUTION: A reclamation sand S to reclaim is charged on a belt conveyer 1 and light is emitted from a light emitting/measuring instrument 3, and then the sand is supplied from a supply port 8 of a sand reclamation device 7 to a rotary vessel 10. The deviation of reflected light intensities between measured and target is operated, the deviation is outputted from an output means 6. By operating a pressure proportional valve 17 by the output, the pressure controlled compressed air is supplied to a cylinder 16, an arm 15, support member 13, etc., are turned up/down. A roll 11 presses reclamation sand and executes reclamation treatment while pressurizing against the inner face of barrel of the rotating vessel 10 with the force corresponding to the output from the out device 6.

53. 发明专利

JPH07115113B2 失效
公开(公告)号：JPH07115113B2
公开(公告)日：1995-12-13
申请号：JP6098791
申请日：1991-03-04
IPC分类号： B22C5/00 , B22C5/06

54. 发明专利

JPH07100627A METHOD FOR REMOVING SAND AND THE LIKE STICKING AT THE TIME OF CASTING CAST PRODUCT 失效
公开(公告)号：JPH07100627A
公开(公告)日：1995-04-18
申请号：JP25162093
申请日：1993-10-07
申请人： TSUCHIYA YOSHIFUMI , SUZUKI AKIYOSHI
发明人： TSUCHIYA YOSHIFUMI , SUZUKI AKIYOSHI
IPC分类号： B22D29/00 , B22C5/00
摘要： PURPOSE:To provide a method, by which molding sand sticking to a cast product being difficult to execute the removing and wasting treatment can achieve the instantaneous removal without any manual aid and the cleaning enabling the reuse simultaneously. CONSTITUTION:The cast product 2 sticking the sand 6, etc., is charged into a steel-made vessel 1 being tightly closable, and gas fuel 4 is press-flowed to fill gas fuel 4 into every corner sticking the sand 6, etc. Then, ignition and combustion of the gas fuel are executed and the stuck sand 6, etc., is burnt, cleaned and removed by high combustion heat and combustion pressure.

55. 发明专利

JPH0780594A FINE GRINDING AND CLASSIFYING DEVICE FOR MOLDING SAND 失效
公开(公告)号：JPH0780594A
公开(公告)日：1995-03-28
申请号：JP22843093
申请日：1993-09-14
申请人： NIPPON CASTING CO LTD
发明人： KONDO TOSHIO
IPC分类号： B22C5/00 , B22C5/04 , B22C5/10
摘要： PURPOSE:To provide a molding sand classifying device which suppresses the destruction of sand grains and does not degrade the quality of reconditioned sand by peeling the deposits of the original sand surface by the intercontact effect of a direct grinding effect of an inclined rotating rough surface and indirect agitating. CONSTITUTION:An oscillating plate 12 which is fixed to a driving shaft 10 and is embedded in the original sand 20 starts oscillation motion when the original sand 20 is charged from a charging pipe 7 of an agitating vessel 2 and the driving shaft 10 is driven by an electric motor 13. On the other hand, the pressure air supplied through a blast port 5 from a blower to a blast chamber 4 is ejected from vent ports 6a of convex projections 6b of a fluidized bed 6 into the agitating vessel 2 to push up the original sand 20 deposited on the fluidized bed 6. The original sand 20 partly comes into contact with the rough surface 12a of the oscillating plate 12 and receives the dynamic pressure in a perpendicular direction. The original sand 20 of the other part is brought into frictional contact with each other by oscillation of the oscillating plate 12. The intercontact effect of this direct grinding effect and the indirect actiating contributes peeling of the deposits 21 of the surface layers of the original sand 20. The separated deposits 21 are pushed up to a classifying vessel 3 through a regulating plate 16 by the ejected air flow and are captured from a discharge port 17.

56. 发明专利

JPH074659B2 失效
公开(公告)号：JPH074659B2
公开(公告)日：1995-01-25
申请号：JP13012090
申请日：1990-05-18
IPC分类号： B22C5/00 , B22D47/02

57. 发明专利

JPH06339745A METHOD AND DEVICE FOR RE-TREATING LOOSE MATERIAL 失效
公开(公告)号：JPH06339745A
公开(公告)日：1994-12-13
申请号：JP10655191
申请日：1991-04-12
申请人： FURANTSU GEERAA
发明人： FURANTSU GEERAA
IPC分类号： B08B3/06 , B09B5/00 , B22C5/00 , B22C5/04 , B22C5/10 , B22C5/18
摘要： PURPOSE: To regenerate loose materials (materials variable in aggregate shapes dependently upon vessels), more particularly either or both of fragment-type fraction materials or free-flowing materials to the loose materials like brand new materials by subjecting these loose materials to a regenerating treatment. CONSTITUTION: The wet process reprocessing apparatus 50 has a washing tank 10 connected to an ultrasonic device 15 via at least two acoustic transducers 16 and 17. A furnace 20 of a drum type including a heating type combustion chamber 21' for a heat treatment include a pipe device 40 turning in an arrow (Z) direction around an axis X. The loose material passing the device is subjected to indirect heating and is supplied to a first chamber 26 from which the loose material is further sent via a screen 23 to a second chamber 24 where gaseous components and fines are separated by the blasting of a fan 25 and the regenerated products are recovered. The separated gaseous components and fines are returned through a filter device 22 and a feedback pipeline 27 to the combustion chamber 21'.

58. 发明专利

JPH06134546A REGENERATING METHOD OF OLD MOLDING SAND 失效
公开(公告)号：JPH06134546A
公开(公告)日：1994-05-17
申请号：JP6529991
申请日：1991-03-07
申请人： FISCHER AG GEORG
发明人： RUDOBUITSUHI BUIRUHERUMU , FURANTSU ZATOMAA
IPC分类号： B22C5/00 , B22C5/04 , B22C5/08 , B22C5/10
摘要： PURPOSE: To obtain a method capable of constantly maintaining the capacity of a regeneration apparatus and well regenerating mainly clay-bonded used foundry sand in a regeneration method for making the used foundry sand reusable in place of fresh sand. CONSTITUTION: The moisture of mainly the clay-bonded used foundry sand is set at 1 wt.% in maximum before the regeneration treatment and the used sand is repeatedly accelerated and decelerated and is rubbed against one another by a combined impact stress and shearing stress and is thus adhered to sand particles. The shell part consisting of a bonding material and additives is separated and is introduced to an outer side by using an air dust-removing device, by which the sand is subjected to the regeneration treatment.

59. 发明专利

JPH0679398A METHOD AND DEVICE FOR ADJUSTING DISCHARGE OF SAND 失效
公开(公告)号：JPH0679398A
公开(公告)日：1994-03-22
申请号：JP11172393
申请日：1993-05-13
申请人： KGT GIESSEREITECHNIK GMBH
发明人： FUORUKAA GODERITSUJI , BUORUTAA SHIYUTOUTSUMAN
IPC分类号： B22C5/00 , B22C5/10 , B22C5/16 , B22C5/18
摘要： PURPOSE: To reduce the size of a pouring conical part formed between the end part of a discharging pipe and a base and to simply control the discharge of sand from the discharging pipe by increasing the supplying quantity of the air supplied via the base, which has an opening hole of an air conveyor into the air conveyor arranged in succession to a fluidized bed kiln. CONSTITUTION: Sand flowing out from a discharging pipe 4 is formed as the pouring conical part on a base 7. The sand coming out of the discharging pipe 4 is separated by passing the air through the opening hole of the base 7 for air conveyor 5, and the sand in the pouring conical part is supplied to the following treating process with the draft of the conveyor 5. The position of the air conveyor 5 or this base 7 are adjustable in only the vertical direction and the horizontal direction, with a simple mechanical mechanism. The shape of the pouring conical part 6 can be changed with the function for setting the position of the sand outlet in the discharging pipe 4 in the horizontal direction and the distance from the sand outlet to the base 7 of the air conveyor 5 according to the supplied quantity of air.

60. 发明专利

JPH0655239A DEVICE FOR AUTOMATICALLY SEPARATING IRON POWDER FROM SAND 失效
公开(公告)号：JPH0655239A
公开(公告)日：1994-03-01
申请号：JP23310992
申请日：1992-08-07
申请人： KOMATSU MFG CO LTD
发明人： NAKAZAWA TAKASHI , EDA YUKIO , KOTOMO SHIGERU , KOBAYASHI MITSUYUKI
IPC分类号： B22C5/00 , B03C1/22 , B22C5/06
摘要： PURPOSE:To automatically separate iron powder from sand by controlling the drive of a magnetic separator with signals from both level sensors for discriminating whether the sand mixed with the iron powder is stored or not and whether the iron powder and the sand are filled up or not. CONSTITUTION:In the iron separator 40 for separating the sand mixing the iron powder into the iron and the sand by using a magnet, the level sensor 15 for detecting whether the sand mixed with the iron powder is stored or not and the level sensors 66, 67 for detecting whether the iron powder and the sand are filled up or not, are arranged. Then this device is constituted by providing a controller for controlling the device of the magnetic separator 40 providing the magnetic based on the signals from both sensors. By this method, the sand mixed with the iron powder is separated into the iron and the sand and can automatically be separated in the state of reusable condition.

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