| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | Method and system for evaluating local compactness of a granular material | US10357060 | 2003-02-03 | US20040000388A1 | 2004-01-01 | Paolo Faraldi; Silvio Antonioni; Edoardo Merlone Borla |
| An evaluation method in which a capacitive sensor is placed in a region of a container, into which a granular material is fed so as to contact the sensor, and the variation in the impedance of the sensor caused by feeding in the material is evaluated. The method is particularly useful for evaluating the compactness of sand in a formwork for making metal castings. The evaluation system includes a sensor defined by plates sensitive to the variation in the dielectric; and a conditioning and control circuit for indicating the variation in the capacitance of the plates, or more generally the total impedance of the system, when the granular material is fed into the container. In one embodiment, the plates of the sensor are defined by two combs made of conducting material, having two numbers of interlacing segments, and located on a rigid or flexible support. | ||||||
| 182 | Automated quoting of molds and molded parts | US10325286 | 2002-12-19 | US20030126038A1 | 2003-07-03 | Lawrence Joseph Lukis; Yuri Arnoldovich Dreizin; John Mark Gilbert |
| Automated, custom mold manufacture for a part begins by creating and storing a collection of information of standard tool geometries and surface profiles machinable by each of the standard tool geometries. A customer sends a CAD file for the part to be molded to the system. The system assesses the CAD file to determine various pieces of mold manufacturing information. One or more acceptability criteria are applied to the part, such as whether the part can be manufactured in a two-piece, straight-pull mold, and whether the mold can by CNC machined out of aluminum. If not, the system sends a file to the customer graphically indicating which portions of the part need modification to be manufacturable. The system provides the customer with a quotation form, that allows the customer to select several parameters, such as number of cavities, surface finish and material, which an independent of the shape of the part. The quotation module then provides the customer with the cost to manufacture the mold or a number of parts. The quotation is based in part upon mold manufacturing time as automatically assessed from the part drawings and based in part on the independent parameters selected by the customer. The customer's part is geometrically assessed so the system automatically selects appropriate tools and computes tool paths for mold manufacture. In addition to the part cavity, the system preferably assesses the parting line, the shutoff surfaces, the ejection pins and the runners and gates for the mold. The preferred system then generates CNC machining instructions to manufacture the mold, and the mold is manufactured in accordance with these instructions. | ||||||
| 183 | Sand level sensing and distribution apparatus | US09593331 | 2000-06-14 | US06302158B1 | 2001-10-16 | David Samuel Sheldon |
| A sand level sensing and distribution apparatus for monitoring and controlling the quantity of sand distributed from a batch hopper into a mold flask includes a sensor assembly connected to a level actuating assembly via a carriage assembly. A window is mounted within one wall of the batch hopper such that the sensor assembly may be used to monitor the level of sand within the batch hopper. The level actuating assembly is proximate the batch hopper, and the sensor assembly is therefore proximately positioned by said window. A control unit is included to receive the monitored signal from the sensor assembly, and, using such information, to control the operation of the level actuating assembly in positioning the sensor assembly to distribute the desired amount of sand into the mold flask. Moreover, a sand gate assembly is mounted subjacent the batch hopper, and the control unit also operates to control when the sand gate assembly is in an open position to distribute sand from the batch hopper into the mold flask. | ||||||
| 184 | Single-cast, high-temperature, thin wall structures | US08476888 | 1995-06-07 | US06255000B1 | 2001-07-03 | Kurt Francis O'Connor; James Paul Hoff; Donald James Frasier; Ralph Edward Peeler; Heidi Mueller-Largent; Floyd Freeman Trees; James Rodney Whetstone; John Henry Lane; Ralph Edward Jeffries |
| Disclosed is a single-cast, thin wall structure capable of withstanding impinging gases at temperatures of 4300° F. and higher, and method of making the same. | ||||||
| 185 | Machine for testing automatically performances of green sand molding | US09249512 | 1999-02-12 | US06170557B2 | 2001-01-09 | Lin Ching-Fu; Hung Chuan-Cheng; Tseng Chien-Ming; Chang Chao-Chi; Ou Yu-Jen; Kang Chin-Hsing |
| An automatic machine is designed to test performances of green sand molding and composed of a machine support, a feeding device, a vibration device, a testing device, a detecting device, and a catching device. The green sand is extracted by the feeding device and then screened in the vibration device The selected green sand is received and carried by a test piece sleeve of the catching device. The test piece sleeve is driven to move to the testing device for testing the compatibility of the green sand, to the detecting device for testing the permeability of the green sand, and to the loadcell for testing the green compressive strength of the green sand. | ||||||
| 186 | Single-cast, high-temperature, thin wall structures and methods of making the same | US657350 | 1996-06-03 | US6071363A | 2000-06-06 | Kurt Francis O'Connor; James Paul Hoff; Donald James Frasier; Ralph Edward Peeler; Heidi Mueller-Largent; Floyd Freeman Trees; James Rodney Whetstone; John Henry Lane; Ralph Edward Jeffries |
| A single-cast, thin wall structure capable of withstanding impinging gases at temperatures of 4300.degree. F. and higher, and method of making the same. | ||||||
| 187 | Method of predicting insufficient charging of green sand in molding process | US7234 | 1998-01-14 | US06021841A | 2000-02-08 | Hiroyasu Makino |
| The method includes the steps of (a) analyzing the porosity of the green sand, (b) analyzing the contact force acting between sand particles of the green sand, (c) analyzing the fluid force of air existing around the sand particles, (d) calculating the acceleration of the sand particles from the force acting on the sand particles, the force being comprised of the contact force, the fluid force, and the gravity of the particles, (e) analyzing equations of motion to obtain the velocity and position of the sand particles after a minute period of time, from the calculated acceleration, and (f) repeating the steps (a), (b), (c), (d), and (e) until the sand particles stop moving. | ||||||
| 188 | Sand mold shift testing method | US111033 | 1998-07-07 | US6015007A | 2000-01-18 | William A. Hunter; William G. Hunter |
| Cope and drag molds are formed using a matchplate, in which the matchplate has shift blocks on its upper and lower surfaces. The shift blocks form corresponding cavities in the cope and drag molds. Then, a gauge mechanism is calibrated with a gauge standard. The gauge mechanism generally includes a gauge block, a spring biased arm, and a meter adapted to measure movement of the spring biased arm relative to the meter. The calibrating step is performed by sliding the gauge mechanism into the gauge standard which provides prototypical drag and cope mold surfaces. The gauge mechanism is calibrated by setting the meter to zero when the spring biased arm engages the prototypical cope mold surface. Lastly, the gauge mechanism is inserted into the formed cavities in the actual cope and drag molds such that the gauge block engages the drag mold and the spring biased arm engages the cope mold. The meter measures the amount of movement of the spring biased arm and thus the amount and direction of shift of the cope mold relative to the drag mold. | ||||||
| 189 | Single-cast, high-temperature thin wall structures having a high conductivity member connecting the walls and methods of making the same | US896883 | 1997-07-18 | US5924483A | 1999-07-20 | Donald J. Frasier |
| Disclosed is an integral single-cast multi wall structure including a very thin wall and a second thin wall. There is a passageway interposed between the pair of walls of the structure, and a high thermal conductivity member extends into said passageways and thermally couples the walls. The high thermal conductivity member increases the heat transfer between the walls of the structure. The present invention further includes a method for casting an integral structure having very thin walls that utilizes the high thermally conductive member in the casting process to hold the pattern and cores in alignment. | ||||||
| 190 | Catalyst flow alarm | US775646 | 1996-12-31 | US5781116A | 1998-07-14 | Thomas A. Hedger; Scott McGehee |
| A flow alarm includes a magnetic switch that is maintained open so long as catalyst flow is maintained and an air flow switch that is closed responsive to flow of air through an associated conduit. The associated conduit supplies air via a solenoid valve to a pneumatic whistle. When flow of catalyst falls below a pre-set threshhold, the magnetic switch closes completing the circuit with the solenoid valve causing the solenoid valve to open and allowing air flow to the pneumatic whistle to signal the reduction of catalyst flow. | ||||||
| 191 | Method for forming hollow core | US727989 | 1996-10-10 | US5769150A | 1998-06-23 | Tokiharu Fukuda |
| In order to prevent casting with an abnormal hollow core having partially thin wall or filled in parts, a new method suitable for forming good hollow core stably and suitable for checking the hollowness of the moulded core before casting is proposed. This method comprises a step of providing a filling hole and an air inlet hole in a mould for core formation, a step of filling the mould with core sand with the air inlet hole in a closed state, a step of heating the mould and a step of sucking out unhardened sand through the filling hole with the air inlet hole in an open state. Unhardened sand is sucked out with the air flow from the air inlet hole to the filling hole, and the hollowness of the core is checked by measuring the pressure at the filling hole. | ||||||
| 192 | Shooting head filling device | US624446 | 1996-04-05 | US5671798A | 1997-09-30 | Werner Landua; Werner Pichler |
| The device comprises a filling assembly (6) with a storage hopper (3) for molding material (2), an outlet member (4) for discharging the molding material (2) into the shooting head (1), and a gate (5) for closing the outlet member (4), the filling assembly (6) being mounted for vertical movement on a machine frame (7) for purposes of immersing the outlet member (4) into the shooting head (1) that is to be filled. To ensure that, on the one hand, the filling assembly (6) is filled with the molding material (2) in an accurately predeterminable and reproducible manner and that, on the other hand, the filling level of the filling assembly (6) is accurately determined, the device is designed and constructed such that a weighing device (8) for determining the weight of the filling assembly (6) is arranged between the filling assembly (6) and the machine frame (7). | ||||||
| 193 | Method and apparatus for on-line monitoring, cleaning, and inspection of core boxes during casting | US378297 | 1995-01-25 | US5522447A | 1996-06-04 | Donald E. Sandstrom; Richard S. Lipka; Thomas A. Grams |
| A method and apparatus for fabricating a core within a core box 10 having passages and screens 12 through which an air-sand mixture may flow to occupy cavities within the core box 10 by which the core is shaped. The method comprises providing a plurality of pressure switch sensors 14 disposed upon a core replica 16, each sensor being located in communication with a screen 12 within the core box 10; positioning the replica 16 within the core box 10; monitoring a condition at one or more screens 12 to determine a state of accretion thereat and generating a signal indicative of the condition; sending the signal to a processor which is in operative communication with a means for cleaning; and activating the means for cleaning within the core box 10 in response to the signal so that flow impediments are cleared from the screens 12 and so that constrictions in fluid flow within the core box 10 are detected in their early stages of development and acceptable production rates may be maintained. The apparatus includes a replica 16 of a core to be molded within the core box 10 and a plurality of sensors 14 disposed upon the replica 16. Each sensor is located in communication with a screen 12 within the core box 10. | ||||||
| 194 | Single-cast, high-temperature, thin wall structures and methods of making the same | US838154 | 1992-02-18 | US5295530A | 1994-03-22 | Kurt F. O'Connor; James P. Hoff; Donald J. Frasier; Ralph E. Peeler; Heidi Mueller-Largent; Floyd F. Trees; James R. Whetstone; John H. Lane; Ralph E. Jeffries |
| Disclosed is a single-cast, thin wall structure capable of withstanding impinging gases at temperatures of 4300.degree. F. and higher, and method of making the same. Using a bleed line of the instant invention allows for a decreasing metal pressure with respect to time which prevents any damage to the thin outer mold wall. | ||||||
| 195 | Arrangement for the automatic filling of a container | US666881 | 1984-10-31 | US4592397A | 1986-06-03 | Horst Mitzner |
| An arrangement for the automatic control over the filling of a dosing or metering container with pourable or flowable material from a supply container, in a manner, such that a predetermined portion of the pourable material stored in the dosing container is withdrawn from the dosing container and a corresponding quantity of pourable material is automatically refilled into the container. | ||||||
| 196 | Foundry molding method | US207792 | 1980-11-17 | US4345638A | 1982-08-24 | Rudolf Hermes |
| A foundry molding machine of the horizontal stack type such as shown in Hatch U.S. Pat. No. 3,958,621 employs a programmable solid state electrical control system operating in conjunction with a closed-loop hydraulic servo-system to obtain greater flexibility of set-up and higher mold uniformity and precision with fewer reject molds. Each of four of the major moving components of the machine may be provided with an encoder or position, velocity and direction monitoring device, such components being the two opposed squeeze rams, the mold traction device, and the pusher. Such monitors not only measure the final position of one squeeze ram, but also enable the calculation or measurement of the mold thickness so that the pusher cylinder can be controlled during its movement to contact a formed cake at a null condition and to move that cake into contact also at a null condition with a horizontally formed stack. While the mold thickness and the final position of the squeeze plates will vary for each mold formed, the positions and thicknesses may be determined for each cycle so that the pusher may be controlled to engage the mold at a slow or substantially zero velocity, accelerate to move the cake toward the stack, and again slow to a substantially zero velocity to bring the cake into engagement with the stack before further accelerating and moving the cake with the stack by a synchronous drive with the mold traction device. | ||||||
| 197 | Method and an installation for regenerating molding sands | US090449 | 1979-11-01 | US4291379A | 1981-09-22 | Renzo Cappelletto; Jean Willame |
| The method for automatically regenerating molding sands consists in mixing the spent sand and in intermittently withdrawing a cylindrical test sample of sand. The compactibility of the test sample is measured intermittently by determining the reduction in height of the sample under the action of a predetermined force. The quantity of water to be added to the sand is determined by means of a microprocessor from the result of the measurement and from the temperature of the sample. The results of measurements of compactibility and compressive strength of the test sample are transmitted to the microprocessor which determines the quantity of bentonite, of foundry black and the like to be added to the spent sand. | ||||||
| 198 | Foundry molding machine and method | US64008 | 1979-08-06 | US4248290A | 1981-02-03 | Rudolf Hermes |
| A foundry molding machine of the horizontal stack type such as shown in Hatch U.S. Pat. No. 3,958,621 employs a programmable solid state electrical control system operating in conjunction with a closed-loop hydraulic servo-system to obtain greater flexibility of set-up and higher mold uniformity and precision with fewer reject molds. Each of four of the major moving components of the machine may be provided with an encoder or position, velocity and direction monitoring device, such components being the two opposed squeeze rams, the mold traction device, and the pusher. Such monitors not only measure the final position of one squeeze ram, but also enable the calculation or measurement of the mold thickness so that the pusher cylinder can be controlled during its movement to contact a formed cake at a null condition and to move that cake into contact also at a null condition with a horizontally formed stack. While the mold thickness and the final position of the squeeze plates will vary for each mold formed, the positions and thicknesses may be determined for each cycle so that the pusher may be controlled to engage the mold at a slow or substantially zero velocity, accelerate to move the cake toward the stack, and again slow to a substantially zero velocity to bring the cake into engagement with the stack before further accelerating and moving the cake with the stack by a synchronous drive with the mold traction device. | ||||||
| 199 | Apparatus for lifting flasks, molds and patterns | US3776300D | 1972-02-04 | US3776300A | 1973-12-04 | FISMER W |
| An arrangement is disclosed for improving the handling or stripping of the flasks or molds of the type which are used to cast large items such as cast metal plates or frames. A system is provided for lifting the flask or mold vertically from the pattern with assurance that each portion or part is moved at exactly the same rate and amount as every other part.
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| 200 | Mold extractor control | US23701838 | 1938-10-26 | US2206459A | 1940-07-02 | HAGEMEYER HENRY F |
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