CN115015492B - Molding sand moisture on-line measuring device and molding sand humidification system - Google Patents
Molding sand moisture on-line measuring device and molding sand humidification system Download PDFInfo
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- CN115015492B CN115015492B CN202210940974.2A CN202210940974A CN115015492B CN 115015492 B CN115015492 B CN 115015492B CN 202210940974 A CN202210940974 A CN 202210940974A CN 115015492 B CN115015492 B CN 115015492B
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- 239000003110 molding sand Substances 0.000 title claims abstract description 61
- 238000001514 detection method Methods 0.000 claims abstract description 46
- 239000004576 sand Substances 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000007790 scraping Methods 0.000 claims abstract description 10
- 238000005266 casting Methods 0.000 claims abstract description 5
- 238000004140 cleaning Methods 0.000 claims description 59
- 230000002457 bidirectional effect Effects 0.000 claims description 10
- 239000004677 Nylon Substances 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims 3
- 238000005259 measurement Methods 0.000 abstract description 8
- 230000010405 clearance mechanism Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011012 sanitization Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
-
- B08B1/12—
-
- B08B1/30—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/04—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by grinding, blending, mixing, kneading, or stirring
- B22C5/0409—Blending, mixing, kneading or stirring; Methods therefor
- B22C5/0472—Parts; Accessories; Controlling; Feeding; Discharging; Proportioning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/08—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by sprinkling, cooling, or drying
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N2033/0003—Composite materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N2033/0091—Powders
Abstract
The invention relates to the technical field of casting molding sand treatment, and discloses a molding sand moisture online detection device which is arranged above a belt conveyor for conveying molding sand, and comprises: frame, humidity detection module, sand scraping module. The frame is positioned above the belt conveyor; the humidity detection module comprises a humidity sensor, and the detection end of the humidity sensor is arranged towards the belt conveyor; the sand scraping module comprises two side plates connected with the frame and a cross beam arranged above the belt conveyor, the two side plates are symmetrically arranged above the belt conveyor in a V-shaped mode, and a sand passing channel is formed between the two side plates. The invention also provides a molding sand humidifying system which comprises a master controller, a sand mixing module, a water adding module, a belt conveyor and the detecting device in any scheme. The invention can ensure that the molding sand can stably contact with the humidity sensor when passing through the humidity sensor, thereby ensuring the accuracy of measurement.
Description
Technical Field
The invention relates to the technical field of casting molding sand treatment, in particular to a molding sand moisture online detection device and a molding sand humidifying system.
Background
In the sand processing production process of foundry, stable molding sand quality is the important condition of avoiding forming the product quality problem, the processing to the knockout is earlier through two dishes department humidifies, the cooling, then will pass through the molding sand of roller mill through band conveyer and carry next process further treatment or storage, but because the molding sand is when carrying on band conveyer, its accumulational height is not completely unanimous, there is the fluctuation, and can't be rather than the stationary contact when leading to the molding sand to pass through humidity detection device, its surface still can adhere to certain molding sand after using a period of time current detection device simultaneously, thereby lead to the humidity measurement to the molding sand not accurate enough, need to design a molding sand moisture on-line measuring device for this reason, in order to solve above-mentioned problem.
Disclosure of Invention
In order to solve the technical problems in the background art, the invention provides an online molding sand moisture detection device.
The invention is realized by adopting the following technical scheme: the utility model provides a molding sand moisture on-line measuring device, its top of establishing the band conveyer that is used for carrying the molding sand, and detection device includes:
the rack is positioned above the belt conveyor;
the humidity detection module comprises a humidity sensor, and the detection end of the humidity sensor is arranged towards the belt conveyor; and
the sand scraping module comprises two side plates connected with the frame and a cross beam arranged above the belt conveyor, wherein the two side plates are arranged above the belt conveyor in a V-shaped symmetrical mode, a sand passing channel is formed between the two side plates, a scraping plate is arranged at the bottom of the cross beam, and the scraping plate can enable the molding sand height passing through the sand passing channel to be consistent.
As the improvement of the scheme, the humidity detection module further comprises a mounting plate connected with the rack, a mounting hole is formed in the mounting plate, and the humidity sensor is embedded in the mounting hole.
As an improvement of the scheme, the molding sand processing device further comprises a cleaning module, and the cleaning module is used for cleaning molding sand attached to the detection end of the humidity sensor.
As the improvement of above-mentioned scheme, the clearance module is including the system ware, a clearance mechanism for adjusting the height adjustment mechanism of humidity transducer height and be used for clearing up the sense terminal of humidity transducer, the equal electric connection of signal output part and height adjustment mechanism and clearance mechanism of controller, height adjustment mechanism includes the mounting bracket, guide bar and adjust the cylinder, wherein, band conveyer's top is located to the mounting bracket, adjust the cylinder and connect in the mounting bracket, adjust the cylinder's output and mounting panel connection, the guide bar vertically sets up, and the one end and the mounting panel of guide bar connect, the other end and the mounting bracket of guide bar connect.
As the improvement of above-mentioned scheme, clearance mechanism includes the clearance cylinder of being connected with the frame and the push pedal of being connected with clearance cylinder output, wherein, the signal output part electric connection of clearance cylinder and controller, and the output level of clearance cylinder is flexible, and the top surface of push pedal is equipped with the clearance brush hair that can contact with humidity transducer's sense terminal.
As an improvement of the scheme, the cleaning mechanism comprises two groups of cleaning units symmetrically arranged on two sides of the mounting plate and a bidirectional telescopic rod driving the two groups of cleaning units to move reversely, and the bidirectional telescopic rod is fixed with the mounting plate.
As the improvement of above-mentioned scheme, the clearance unit is including the movable sill bar of locating the mounting panel below, locate the clearance piece at sill bar top, two sets of carriages of being connected with the sill bar and the push-and-pull board of connecting two sets of carriages, wherein, carriage and mounting panel sliding connection, two flexible ends of two-way telescopic link are connected with two push-and-pull boards respectively, the signal output part electric connection of two-way telescopic link and controller, and two-way telescopic link work drive carriage drives the sill bar and slides, drive the clearance piece clearance humidity transducer's at sill bar top sense terminal.
As the improvement of the scheme, the first bottom surface of the mounting plate is higher than the detection end of the humidity sensor, the detection end of the humidity sensor is located in the second bottom surface, the output end of the bidirectional telescopic rod is connected with the driving rod, the driving rod is connected with the push-pull plate in a longitudinal sliding mode, the side face of the mounting plate is provided with the sliding groove, the sliding groove comprises a first horizontal section, an inclined section and a second horizontal section, the first horizontal section is higher than the second horizontal section, two ends of the inclined section are respectively used for communicating the first horizontal section with the second horizontal section, and the sliding frame is provided with the guide sliding block capable of being connected with the sliding groove in a sliding mode.
As an improvement of the scheme, the cleaning pieces are thin steel wires or nylon bristles.
The invention also provides a molding sand humidifying system, which comprises a master controller, a sand mixing module, a water adding module, a belt conveyer and a detection device in any scheme, wherein the sand mixing module is used for stirring the cast shakeout, the water adding module is used for adding water to the molding sand in the sand mixing module, the belt conveyer is used for receiving the molding sand discharged from the sand mixing module, the detection device detects the humidity of the molding sand on the belt conveyer and transmits data to the master controller, and the signal output end of the master controller is electrically connected with the water adding module to control the water adding amount.
Compared with the prior art, the invention has the beneficial effects that:
the online detection device for the water content of the molding sand comprises a rack, wherein the rack is positioned above a belt conveyor; the humidity detection module comprises a humidity sensor, and the detection end of the humidity sensor is arranged towards the belt conveyor; and the scraping module comprises two side plates connected with the frame and a cross beam arranged above the belt conveyor, wherein the two side plates are arranged above the belt conveyor in a V-shaped symmetrical mode, a sand passing channel is formed between the two side plates, a scraper is arranged at the bottom of the cross beam, and the scraper can enable the molding sand passing through the sand passing channel to be consistent in height. Can make the molding sand can stabilize rather than the contact when passing through humidity transducer through above-mentioned structure to guarantee its measuring accuracy.
The detection device provided by the invention also comprises a cleaning module, and the cleaning module can be used for conveniently cleaning the molding sand attached to the humidity sensor, so that the measurement result of the humidity sensor is further improved.
The molding sand humidifying system provided by the invention comprises a master controller, a sand mixing module, a water adding module, a belt conveyor and the online detection device provided by the scheme, and the online detection device with accurate measurement can ensure that the humidifying system works more reliably, reduce the production failure rate and improve the working efficiency.
Drawings
Fig. 1 is a schematic overall structure diagram of a detection apparatus provided in embodiment 1 of the present invention;
FIG. 2 is a schematic view of a cleaning mechanism and a mounting plate according to embodiment 2 of the present invention;
FIG. 3 is a schematic view of the cleaning unit of FIG. 2 after moving a distance toward the end of the mounting plate;
FIG. 4 is a schematic bottom view of the structure of FIG. 2 according to the present invention;
FIG. 5 is a schematic view of the structure of a sand scraping module of the inspection device of the present invention;
fig. 6 is a schematic diagram of a sand humidifying system according to embodiment 3 of the present invention.
Description of the main symbols:
the device comprises a belt conveyor 1, a rack 2, a mounting frame 3, a guide rod 4, an adjusting cylinder 5, a push plate 6, a mounting plate 7, a side plate 8, a cross beam 9, a scraper 10, a first horizontal segment 11, an inclined segment 12, a second horizontal segment 13, a sliding frame 15, a first bottom surface 16, a push-pull plate 17, a two-way telescopic rod 18, a cleaning piece 19, a humidity sensor 20, a second bottom surface 21, a driving rod 22, a bottom rod 23, a guide sliding block 24 and a mounting hole 25.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
Example 1:
referring to fig. 1 and 5, an online moisture detecting device for molding sand is provided above a belt conveyor 1 for conveying molding sand, the detecting device includes:
the frame 2 is positioned above the belt conveyor 1; the specific frame 2 can be fixedly installed with a bracket of the belt conveyor 1.
The humidity detection module comprises a humidity sensor 20, and the detection end of the humidity sensor 20 is arranged towards the belt conveyor 1; the humidity sensor can adopt an existing humidity sensor, and is of a Werne & Thiel-sensortechnic-FS1-30-G80-X-K-14/1 model.
In order to make the molding sand height that band conveyer 1 carried to come can keep in a stable within range, area and scope when making the molding sand and humidity transducer contact are in a stable effective range, so that humidity transducer's measurement is more accurate, the detection device that this scheme provided is still including the module of scraping sand, the module of scraping sand includes two blocks of curb plates 8 of being connected with frame 2 and locates the crossbeam 9 of band conveyer 1 top, wherein, two blocks of curb plates 8 are the top that the V type symmetry was located band conveyer 1, form the sand channel between two blocks of curb plates 8, scraper blade 10 is installed to the bottom of crossbeam 9, scraper blade 10 can make the molding sand highly uniform who passes through the sand channel. The scraper 10 may be a structure in which a rubber plate is fixed to the bottom of a metal plate, and the metal plate may be mounted to the cross beam 9 by bolts or screws, so as to facilitate disassembly and replacement.
As an optional embodiment of the present invention, the humidity detection module further includes an installation plate 7 connected to the frame 2, the installation plate 7 is provided with an installation hole 25, and the humidity sensor 20 is embedded in the installation hole 25. Through above-mentioned structure, humidity transducer is dismantled in easy to assemble more to the structure (specifically can refer to figure 1) of upwarping it can be set to at the both ends of mounting panel 7, can have better guide effect when the molding sand contact on with band conveyer 1, avoids the molding sand to pile up.
As an optional embodiment of the present invention, a cleaning module for cleaning the molding sand attached to the detection end of the humidity sensor 20 is further included. The molding sand attached to the humidity sensor can be conveniently removed through the cleaning module, so that the measurement of the humidity sensor 20 is more accurate.
As an optional embodiment of the present invention, the cleaning module includes a controller, a height adjusting mechanism for adjusting a height of the humidity sensor 20, and a cleaning mechanism for cleaning a detection end of the humidity sensor 20, a signal output end of the controller is electrically connected to the height adjusting mechanism and the cleaning mechanism, the height adjusting mechanism includes a mounting frame 3, a guide rod 4, and an adjusting cylinder 5, wherein the mounting frame 3 is disposed above the belt conveyor 1, the adjusting cylinder 5 is connected to the mounting frame 3, an output end of the adjusting cylinder 5 is connected to the mounting plate 7, the guide rod 4 is longitudinally disposed, one end of the guide rod 4 is connected to the mounting plate 7, and the other end of the guide rod 4 is connected to the mounting frame 3. The controller in this scheme can adopt current PLC controller to use.
As an alternative embodiment of the present invention, the cleaning mechanism comprises a cleaning cylinder connected to the frame 2 and a push plate 6 connected to an output end of the cleaning cylinder, wherein the cleaning cylinder is electrically connected to a signal output end of the controller, the output end of the cleaning cylinder horizontally extends and retracts, and the top surface of the push plate 6 is provided with cleaning bristles capable of contacting with a detection end of the humidity sensor 20.
This scheme is when the clearance, at first controller control adjust cylinder 5 work, drives mounting panel 7 and rises to setting for the height, then the work of the clearance jar in the controller control clearance mechanism, and the clearance jar drives push pedal 6 and is close to mounting panel 7 gradually, and when push pedal 6 passed through the mounting panel 7 below, the clearance brush hair on its surface can give the sanitization with humidity transducer bottom surface adhesion's molding sand, avoids adhering to for a long time and influences humidity transducer's measurement accuracy.
Example 2:
with reference to fig. 2 to 4, on the basis of embodiment 1, the cleaning mechanism provided in embodiment 2 may be used to replace the cleaning mechanism of embodiment 1, or the cleaning mechanism provided in embodiment 1 may be used in cooperation with the cleaning mechanism provided in embodiment 1, and the cleaning mechanism provided in embodiment 2 includes two sets of cleaning units symmetrically disposed on two sides of the mounting plate 7 and two-way telescopic rods 18 driving the two sets of cleaning units to move in opposite directions, and the two-way telescopic rods 18 are fixed to the mounting plate 7. The bi-directional telescopic rod 18 may be an existing bi-directional electric push rod.
As an alternative embodiment of the present invention, the cleaning unit includes a bottom rod 23 movably disposed below the mounting plate 7, a cleaning member 19 disposed at the top of the bottom rod 23, two sets of sliding frames 15 connected to the bottom rod 23, and a push-pull plate 17 connecting the two sets of sliding frames 15, wherein the sliding frames 15 are slidably connected to the mounting plate 7, two telescopic ends of the bidirectional telescopic rod 18 are respectively connected to the two push-pull plates 17, the bidirectional telescopic rod 18 is electrically connected to a signal output end of the controller, and the bidirectional telescopic rod 18 operates to drive the sliding frame 15 to drive the bottom rod 23 to slide, and drive the cleaning member 19 at the top of the bottom rod 23 to clean the detection end of the humidity sensor 20. Preferably, the cleaning elements 19 are thin steel wires or nylon bristles. The cleaning member 19 can be replaced periodically to avoid loss and failure.
As an alternative embodiment of the present invention, the first bottom surface 16 of the mounting plate 7 is higher than the detection end of the humidity sensor, the detection end of the humidity sensor 20 is located in the second bottom surface 21, the output end of the bidirectional telescopic rod 18 is connected to the driving rod 22, the driving rod 22 is longitudinally and slidably connected to the push-pull plate 17, a sliding slot is formed in the side surface of the mounting plate 7, the sliding slot includes a first horizontal segment 11, an inclined segment 12 and a second horizontal segment 13, wherein the first horizontal segment 11 is higher than the second horizontal segment 13, two ends of the inclined segment 12 are respectively used for communicating the first horizontal segment 11 with the second horizontal segment 13, and the sliding frame 15 is provided with a guide slider 24 capable of slidably connecting to the sliding slot. In order to make the measurement more accurate, when the above-mentioned cleaning mechanism does not work, can drive two sets of cleaning unit motion to the both ends of mounting panel 7 through two-way electric putter to can drive bottom bar 23 and move the below of bottom surface 16 and carry out the village temporarily, and when bottom bar 23 moved the position of bottom surface 16 below, its bottom height was also higher than the height of bottom surface two 21, thereby can avoid being struck off by it when the molding sand passed through bottom bar 23 position, when leading to the molding sand to pass through the below of bottom surface two 21, can't contact with it, thereby avoided leading to the phenomenon of humidity transducer work failure.
Example 3:
this embodiment lies in with embodiment 1 difference, this embodiment has proposed a molding sand humidification system, including total controller, the mulling module, add the water module, belt conveyer 1 and the detection device as in any one of the above-mentioned embodiments, wherein, the mulling module is used for stirring the knockout after the casting, the module of adding water is used for adding water to the molding sand in the mulling module, belt conveyer 1 is arranged in receiving the discharged molding sand in the mulling module, detection device detects the molding sand humidity on belt conveyer 1, and transmit data to total controller, total controller's signal output part and the module electric connection that adds water, in order to be used for control to add the water yield. Wherein the sand mixing module can adopt current casting sand mixer to use, and the module of adding water includes that a plurality of can be to the shower nozzle of adding water in the sand mixer, and the shower nozzle passes through master controller control it and closes or open to reach the purpose of control water yield, with the molding sand humidity of control through this system processing.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (4)
1. The utility model provides a molding sand moisture on-line measuring device, its top of establishing the band conveyer that is used for carrying the molding sand, its characterized in that, detection device includes:
the frame is positioned above the belt conveyor;
the humidity detection module comprises a humidity sensor, and the detection end of the humidity sensor is arranged towards the belt conveyor; and
the sand scraping module comprises two side plates connected with the rack and a cross beam arranged above the belt conveyor, wherein the two side plates are symmetrically arranged above the belt conveyor in a V shape, a sand passing channel is formed between the two side plates, and a scraper is arranged at the bottom of the cross beam and can ensure that the molding sand passing through the sand passing channel is consistent in height;
the humidity detection module also comprises a mounting plate connected with the rack, a mounting hole is formed in the mounting plate, and the humidity sensor is embedded in the mounting hole;
the cleaning module is used for cleaning the molding sand attached to the detection end of the humidity sensor;
the cleaning module comprises a controller, a height adjusting mechanism for adjusting the height of the humidity sensor and a cleaning mechanism for cleaning the detection end of the humidity sensor, the signal output end of the controller is electrically connected with the height adjusting mechanism and the cleaning mechanism, the height adjusting mechanism comprises a mounting frame, a guide rod and an adjusting cylinder, the mounting frame is arranged above the belt conveyor, the adjusting cylinder is connected with the mounting frame, the output end of the adjusting cylinder is connected with the mounting plate, the guide rod is longitudinally arranged, one end of the guide rod is connected with the mounting plate, and the other end of the guide rod is connected with the mounting frame;
the cleaning mechanism comprises two groups of cleaning units symmetrically arranged on two sides of the mounting plate and two-way telescopic rods for driving the two groups of cleaning units to move in opposite directions, and the two-way telescopic rods are fixed with the mounting plate;
the cleaning unit comprises a bottom rod movably arranged below the mounting plate, a cleaning piece arranged at the top of the bottom rod, two sliding frames connected with the bottom rod and push-pull plates connected with the two sliding frames, wherein the sliding frames are connected with the mounting plate in a sliding mode, two telescopic ends of the bidirectional telescopic rod are respectively connected with the two push-pull plates, the bidirectional telescopic rod is electrically connected with a signal output end of the controller, the sliding frames are driven by the bidirectional telescopic rod to drive the bottom rod to slide in a working mode, and the cleaning piece arranged at the top of the bottom rod is driven to clean a detection end of the humidity sensor;
the utility model discloses a two-way telescopic handle, including mounting panel, humidity transducer, actuating lever, push-pull plate, spout, first horizontal segment, the bottom surface one of mounting panel is higher than humidity transducer's sense terminal, humidity transducer's sense terminal is in bottom surface two, and two-way telescopic handle's output connects the actuating lever, actuating lever and push-pull plate longitudinal sliding connect, the spout is seted up to the side of mounting panel, the spout includes first horizontal segment, slope section and second horizontal segment, wherein, first horizontal segment is higher than the second horizontal segment, the both ends of slope section are used for communicating first horizontal segment and second horizontal segment respectively, install on the carriage can with spout sliding connection's direction slider.
2. The online moisture detecting device for molding sand according to claim 1, wherein the cleaning mechanism comprises a cleaning cylinder connected with the frame and a push plate connected with an output end of the cleaning cylinder, wherein the cleaning cylinder is electrically connected with a signal output end of the controller, the output end of the cleaning cylinder horizontally stretches, and cleaning bristles capable of contacting with a detection end of the humidity sensor are arranged on the top surface of the push plate.
3. The on-line moisture detector for molding sand according to claim 1, wherein said cleaning member is a thin steel wire or nylon bristles.
4. The utility model provides a molding sand humidification system, its characterized in that, include master controller, mulling module, add water module, belt transmission machine and according to any one of claims 1-3 detection device, wherein, the mulling module is used for stirring the shakeout after the casting, it is used for adding water to the molding sand in the mulling module to add water module, and the belt transmission machine is arranged in receiving the discharged molding sand in the mulling module, and detection device detects molding sand humidity on the belt transmission machine and transmits data to master controller, master controller's signal output part and the module electric connection that adds water to be used for control to add the water yield.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210940974.2A CN115015492B (en) | 2022-08-08 | 2022-08-08 | Molding sand moisture on-line measuring device and molding sand humidification system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210940974.2A CN115015492B (en) | 2022-08-08 | 2022-08-08 | Molding sand moisture on-line measuring device and molding sand humidification system |
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| CN115015492A CN115015492A (en) | 2022-09-06 |
| CN115015492B true CN115015492B (en) | 2022-11-04 |
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| CN116774743B (en) * | 2023-06-19 | 2024-03-08 | 常州市法迪尔克粘土砂铸造机械有限公司 | Multi-position sand humidity detection device for casting and method thereof |
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