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1. 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.

2. 发明专利

JPH0843296A METHOD AND APPARATUS FOR INSPECTING STATE OF RECOVERY SAND 失效
公开(公告)号：JPH0843296A
公开(公告)日：1996-02-16
申请号：JP19740494
申请日：1994-07-29
申请人： SINTOKOGIO LTD
发明人： NISHIDA OSAMU , UMEDA KOJI
IPC分类号： G01N21/17 , B22C1/00
摘要： PURPOSE:To accurately, easily inspect the state of recovered sand and to automate the inspection by comparing the measured reflected light intensity of the recovered sand with the correlation data of the reflected light intensity in terms of the previously experimentally obtained recovery sand reference. CONSTITUTION:Recovered sand S on a belt conveyor 1 is irradiated with light from a measuring instrument 3, and the intensity of the light reflected on the sand S is measured by the instrument 3. Comparing means 4 compares the reflected light intensity with the data indicating the correlation between the reflected light intensity and the reference in terms of the sand S previously experimentally obtained, read from memory means 5. Calculating means 6 calculates the state of the sand S based on the compared result, and output from output means 7. Accordingly, the state of the sand S is accurately, easily inspected, and the inspection can be automated. Thus, the following sand reproduction process by a sand regenerator is made possible.

3. 发明专利

JPH07190975A INSTRUMENT FOR MEASURING WATER CONTENT OF FOUNDRY SAND 失效
公开(公告)号：JPH07190975A
公开(公告)日：1995-07-28
申请号：JP34732093
申请日：1993-12-24
申请人： SINTOKOGIO LTD
发明人： NISHIDA OSAMU , UMEDA KOJI
IPC分类号： G01N33/24 , B22C1/00 , G01N27/04
摘要： PURPOSE:To provide an instrument for measuring water content of foundry sand which can reduce errors. CONSTITUTION:A control means 5 outputs an activating signal to a constant-current supplying means 3 by controlling a square wave generating means 4 and supplies a current having a constant frequency and current value between electrodes 1a and 1b. By making an electric current to flow between the electrodes la and 1b through foundry sand and actuating a voltage measuring means 7 through an actuating timing means 8, the voltage generated across and resistance value between the electrodes 1a and 1b are respectivily measured by means of a voltage measuring means 7, etc., and a resistance value calculating means 9. An uncorrected water content equivalent value calculating means 10 calculates the value equivalent to the water content of the sand before performing correction based on the temperature of the sand and inputs the calculated value to a correcting means 14. A temperature sensor 11, etc., measures the temperature of the sand near the electrodes 1a and 1b and inputs the temperature to the means 14. The means 14 calculates the value equivalent to the water content of the sand by taking the temperature of the sand into account based on the temperature measured by a temperature measuring means 13, relation between the temperature of the sand and a constant, and calculated results of the calculating means 10. The calculated value equivalent to the water content is inputted to a water content converting means 15 and the means 15 converts the value into the water content of the foundry sand.

4. 发明专利

JPH11221649A WATER SPRAY COOLING SYSTEM DEVICE FOR MOLDING SAND 失效
公开(公告)号：JPH11221649A
公开(公告)日：1999-08-17
申请号：JP4129498
申请日：1998-02-06
申请人： SINTOKOGIO LTD
发明人： UMEDA KOJI
IPC分类号： B22D29/00 , B22C5/08
摘要： PROBLEM TO BE SOLVED: To adequately execute water spray cooling to molding sand and to urge the inspection and repair of a device in real time in the case of the abnormal state by constituting a microcomputer in such a manner as to compare and compute the actual flow rate measured by a flow rate sensor and a calculated water spray target flow rate. SOLUTION: The flow rate of the water flowing through the flow rate sensor 6 is compared and computed with the calculated water spray target flow rate in the microcomputer 8. When a flow rate difference of the water more than the prescribed quantity is admitted between both, an electric signal is immediately outputted to a display 9 and an alarm is emitted from the display 9. The water spray is stopped simultaneously with the alarm and immediately, the inspection for the water leakage of water feed piping 3, the foreign matter deposited in the water feed piping 3 or the formation of rust and further the trouble of a water pressure constant device 1, etc., is carried out. The abnormal state is then repaired and the device is restarted. The abnormal state of the actual water flowing through the flow rate sensor 6 is detected in such a manner and, therefore, the execution of the inspection and repair of the device in real time is made possible.

5. 发明专利

JPH1158508A HEAT-CONTROL OF SHEET-FORM MATERIAL 失效
公开(公告)号：JPH1158508A
公开(公告)日：1999-03-02
申请号：JP22745697
申请日：1997-08-08
申请人： SINTOKOGIO LTD
发明人： TOMITA IWAO , OSAWA HIDEO , UMEDA KOJI
IPC分类号： B29C51/06 , B29C51/42 , B29C51/46 , B29L7/00
摘要： PROBLEM TO BE SOLVED: To quickly heat a sheet-form material and increase the productivity, and at the same time, properly perform the heating control by a method wherein at a pre-heating location, the surface temperature is quickly heated to a target temperature, and in a main heating, the sheet-form material is heated to the core by keeping a temperature at which the surface does not melt, and the sheet-form material is transferred to a forming process. SOLUTION: A heating system is constituted of a pre-heating device 3 to heat a sheet-form material 1 which is fed from a base material setting location 2, a main device 4 following the pre-heating device 3, a forming press location 5 and a material, carrying device, and at the locations of the heating devices 3, 4, heater retreat locations 6, 7 for respective heatings are provided. In this case, the material 1 is set on a gripping device at the setting location 2, and then, the material 1 is moved to the location of the heating device 3, and is heated for a specified period of time by the maximum heating output by using a pre-heating means which can retreat. At this location of the device 3, the material 1 is heated to a temperature at which the surface of the material 1 does not melt, and the material 1 is moved to the location of the device 4, and a heating is started by a heating means, and after keeping it in the allowable range of a target temperature for a fixed period of time, the material 1 is moved to the location 5 and is carried out after being formed.

6. 发明专利

JPH11239842A METHOD FOR CONTROLLING WATER POURING ONTO MOLDING SAND AND DEVICE FOR CONTROLLING WATER POURING ONTO MOLDING SAND 失效
公开(公告)号：JPH11239842A
公开(公告)日：1999-09-07
申请号：JP33977898
申请日：1998-11-30
申请人： SINTOKOGIO LTD
发明人： ASAI HIROFUMI , UMEDA KOJI
IPC分类号： B22C5/08
摘要： PROBLEM TO BE SOLVED: To keep the control of the quick and accurate water pouring quantity for a long time by quickly and accurately controlling the water pouring quantity without using a feedback control, and observing the abnormality of water pouring. SOLUTION: A water pouring table showing the relation between the opening degree of a valve and the water pouring quantity, is prepared before actual operation, and the commanded water pouring quantity is converted into a valve opening degree command signal based on the water pouring table, and to the valve, the opening degree of the valve is commanded to adjust the opening degree of the valve based on this command signal. Further, in the case that the difference between the command water pouring quantity and the actual water pouring quantity is generated, the water pouring table is automatically corrected.

7. 发明专利

JP2001293540A MONITORING SYSTEM FOR MOLDING MACHINE 失效
公开(公告)号：JP2001293540A
公开(公告)日：2001-10-23
申请号：JP2000110088
申请日：2000-04-12
申请人： SINTOKOGIO LTD
发明人： AMANO HIRONOBU , MORIBE YASUO , UMEDA KOJI
IPC分类号： B22C19/04
摘要： PROBLEM TO BE SOLVED: To provide a system for monitoring the drive of a molding machine remotely. SOLUTION: The monitoring system for molding machine contains a local unit and this local unit accesses a communication network connected with this unit and a sensor connected with the local unit, is used for measuring a desired attribute of the local unit and the local unit transmits a signal to the communication network correspondingly to the measured attribute. A remote unit connected with the communication network receives a signal from the local unit, thus the molding machine is monitored remotely when driven for production.

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