CN201226107Y - Automatic control device for firming agent - Google Patents
Automatic control device for firming agent Download PDFInfo
- Publication number
- CN201226107Y CN201226107Y CNU2008201273788U CN200820127378U CN201226107Y CN 201226107 Y CN201226107 Y CN 201226107Y CN U2008201273788 U CNU2008201273788 U CN U2008201273788U CN 200820127378 U CN200820127378 U CN 200820127378U CN 201226107 Y CN201226107 Y CN 201226107Y
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- China
- Prior art keywords
- hardening agent
- volume pump
- automatic control
- control system
- control equipment
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- Expired - Lifetime
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- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The utility model relates to an automatic curing agent controller which comprises a controlling system, at least two curing agent tanks and a metering pump, wherein the metering pump is respectively connected with the curing agent tanks; a speed regulating device of the metering pump which is electrically connected with the metering pump is connected with the controlling system; each output end of the metering pump is connected with an input port of a mixing pipeline; an output port of the mixing pipeline is connected with a curing agent adding port of a sand mixing machine; the controlling system comprises an interconnected controlling system used for controlling the synchronized operation of the metering pump and the sand mixing machine. The automatic curing agent controller provided by the utility model realizes the synchronized operation of the metering pump and the sand mixing machine, and has the advantages of simplified pipeline system and low maintenance cost.
Description
Technical field
The utility model relates to the casting and molding apparatus field, a kind of specifically hardening agent automatic control equipment.
Background technology
At present, in for example using self-hardening furan resin sand moulding, coremaking casting process, for keeping certain curing rate, summer, acid number hardening agent during spring and autumn is used was used high acid value hardening agent (A type) winter with hanging down acid number hardening agent (Type B) usually.With the different frequent hardening agent of changing of season and temperature, often utilize the hardening agent controller to adjust the addition that in puddle mixer, adds A type and two kinds of hardening agent of Type B automatically, for fear of in process of production to obtain the hardening agent of different acid numbers.Because existing hardening agent controller and puddle mixer are to be controlled respectively by two separate control system, when puddle mixer breaks down in the course of the work or other abnormal conditions occur and when causing quitting work, and the hardening agent controller still operate as normal, continue to provide hardening agent liquid, will inevitably cause a large amount of hardening agent wastes like this, simultaneously also the pump housing in the hardening agent controller is caused direct infringement, reduce the serviceable life of pump.When situations such as temperature over-range or control system fault perhaps occurring when the hardening agent controller, and puddle mixer still keeps operate as normal, will inevitably produce a large amount of sand mold waste products like this, and has potential safety hazard.
Therefore, in order to overcome the above problems, the return line that need in above-mentioned hardening agent controller, three-way solenoid valve is set and be communicated with three-way solenoid valve, when puddle mixer quit work, the hardening agent liquid that has pumped can flow back to the hardening agent jar again by return line.Such as Chinese patent literature CN1274399C, a kind of intelligent curative proportioning device is disclosed, volume pump outlet in its pipe system is connected with safety valve, tensimeter, vent valve in the horizontal direction successively, connect counterbalance valve and three-way solenoid valve then, the three-way solenoid valve another port takes back the stream tube inlet, and the recirculatory pipe outlet connects the top inlet of hardening agent jar.Chinese patent literature CN1210119C for another example, a kind of hardening agent auto-controller is disclosed, in its pipeline, be provided with parts such as volume pump, impact damper, safety valve, hydralic pressure gauge, counterbalance valve and three-way solenoid valve, and be provided with recirculatory pipe equally and be connected, comprise the control liquid stream commutating circuit that is connected with three-way solenoid valve in its control circuit with the hardening agent jar.Disclosed hardening agent controller in above-mentioned two documents, all be when puddle mixer breaks down, to control three-way solenoid valve by circuit, the liquid transmission pipeline that will be communicated with puddle mixer is closed, and opens the recirculatory pipe valve, makes the hardening agent liquid that is pumped by volume pump be back to the hardening agent jar.But above-mentioned hardening agent controller has following shortcoming: 1. when puddle mixer breaks down, though disclosed hardening agent controller can make hardening agent liquid reflux in the above-mentioned document, but volume pump keeps duty always, and be to flog a dead horse, not only waste energy, and influence the serviceable life of volume pump greatly; 2. disclosed hardening agent controller in the above-mentioned document can not solve when the hardening agent controller and break down and puddle mixer when still keeping operate as normal, produces a large amount of sand mold waste products and the problem of potential safety hazard occurs; 3. owing to be provided with a large amount of return lines and three-way solenoid valve, the equipment pipe system of causing is very complicated, chaotic, easily forms potential safety hazard; 4. because the hardening agent liquid that uses at casting field itself has corrosivity, the a large amount of return lines and the three-way solenoid valve that are provided with, pipeline and the physical damage rate that is arranged on the miscellaneous part in the pipeline have been increased greatly, the maintenance and the turnover rate of equipment are increased, and because equipment pipeline and parts are numerous and diverse, also bring certain difficulty, the maintenance cost of equipment is increased substantially to maintenance; 5. for these return lines and the three-way solenoid valve that are provided with are controlled, must need to dispose correspondent control circuits, so just make the control system of entire equipment also become very complicated; Though 6. return line can make liquid be back to the hardening agent jar, also can the useful hardening agent liquid of a residual part but inevitable in tediously long return line, cause unnecessary waste to a certain extent, and volume pump can be not out of service yet at this moment, the liquid that pumps can constantly be back in the hardening agent jar, electric power is wasted in volume pump running at this moment on the one hand, has also reduced the serviceable life of volume pump on the other hand.
The utility model content
For this reason, technical problem to be solved in the utility model is to provide a kind of and can realizes and puddle mixer synchronous operation, pipe system is simplified, maintenance cost is low hardening agent automatic control equipment.
For solving the problems of the technologies described above, the utility model is achieved through the following technical solutions:
A kind of hardening agent automatic control equipment, comprise control system, at least two hardening agent jars and respectively with the tank connected volume pump of described hardening agent, the volume pump arrangements for speed regulation that are electrically connected with described volume pump link to each other with described control system, described metering delivery side of pump all is communicated with the input port of a mixing duct, the hardening agent that the delivery outlet of described mixing duct connects puddle mixer adds inlet, and described control system comprises the interlock control system that is used to control described volume pump and described puddle mixer synchronous operation.
Above-mentioned hardening agent automatic control equipment, described interlock control system comprises PLC control module, interlocked control unit, and the pump detecting unit, Level Detection unit and the puddle mixer detecting unit that link to each other with the signal input part of described PLC control module, the signal output part of described PLC control module links to each other with the input end of described interlocked control unit, and the output terminal of described interlocked control unit links to each other with the puddle mixer control system with described volume pump arrangements for speed regulation.
Above-mentioned hardening agent automatic control equipment, the signal input part of described control system links to each other with sand temperature pick-up unit, and described sand temperature pick-up unit comprises the sand temperature sensor, and described sand temperature sensor links to each other with the temperature detecting unit of described control system.
Above-mentioned hardening agent automatic control equipment, described volume pump arrangements for speed regulation are frequency converter.
Above-mentioned hardening agent automatic control equipment also comprises the impact damper that is connected with described metering delivery side of pump.
Above-mentioned hardening agent automatic control equipment also comprises the counterbalance valve that is arranged on the pipeline that described volume pump output terminal connected.
Above-mentioned hardening agent automatic control equipment also comprises the safety valve that is connected with described metering delivery side of pump, and the output terminal of described safety valve is connected with the input end of described hardening agent jar or described volume pump.
Above-mentioned hardening agent automatic control equipment also comprises the flow detector that is connected with described PLC control module, and described flow detector is arranged in the described mixing duct.
Above-mentioned hardening agent automatic control equipment, described mixing duct also is connected with the pressure gas input channel.
Above-mentioned hardening agent automatic control equipment, described control system is connected with upper managing computer by repeater.
Technique scheme of the present utility model has the following advantages compared to existing technology: the 1. hardening agent automatic control equipment that provides of the utility model, owing to be provided with interlock control system, when hardening agent automatic control equipment or puddle mixer break down, can stop the operation of volume pump and puddle mixer automatically, need not to be provided with again return line and three-way solenoid valve, can fully guarantee under the prerequisite of production safety, pipeline is simplified greatly, part of appliance quantity significantly reduces, the physical damage rate reduces, the maintenance rate of equipment reduces, thereby has also just reduced cost of equipment maintenance; 2. the hardening agent automatic control equipment that provides of the utility model owing to be provided with interlock control system, need not to be provided with return line and three-way solenoid valve again, also just need not to dispose the control circuit that is used to control above-mentioned parts again, and the control system of equipment is significantly simplified; 3. the hardening agent automatic control equipment that provides of the utility model, owing to be provided with interlock control system, need not to be provided with again return line and three-way solenoid valve, guarantee that hardening agent liquid can be fully utilized, can not cause waste, when the volume pump of while in the hardening agent automatic control equipment etc. breaks down, stop the puddle mixer operation simultaneously, avoid occurring waste product, waste starting material; 4. and the hardening agent automatic control equipment that provides of the utility model, the interlock control system that adopts, when hardening agent automatic control equipment or puddle mixer break down, not only can stop the operation of volume pump and puddle mixer automatically, can also report to the police, in time fix a breakdown, fully guarantee safety in production with alert and plant maintenance personnel, reduce the sand mold rejection rate greatly, guarantee production efficiency; 5. the hardening agent automatic control equipment that provides of the utility model, also be provided with the Level Detection unit, in order to the liquid level level in the monitoring hardening agent jar, in case the hardening agent liquid in the hardening agent jar is very few even when being lower than warning value, interlock control system will stop the volume pump in the hardening agent automatic control equipment and the operation of puddle mixer simultaneously, to prevent the generation of waste product sand mold, guarantee production efficiency, and eliminate safe hidden trouble; 6. in addition, the hardening agent automatic control equipment that the utility model provides feeds pressurized air thereby connect the pressure gas input channel in the delivery outlet position of described mixing duct, to increase the fluid pressure of hardening agent, make mulling more even, thereby realize adjusting the hardening agent fluid pressure.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, according to specific embodiment of the utility model also in conjunction with the accompanying drawings, the utility model is described in further detail, wherein below
Fig. 1 is a process flow diagram of the present utility model;
Fig. 2 is a principle process synoptic diagram of the present utility model.
Reference numeral is expressed as among the figure: 1-hardening agent jar, 2-stop valve, 3-Y type filter, 4-volume pump, 5-impact damper, 6-liquid level gauge, 7-intelligent flow meter, 8-air-operated solenoid valve, 9-sand temperature sensor, 10-counterbalance valve, 11-safety valve
Embodiment
As shown in Figure 1, hardening agent automatic control equipment of the present utility model comprises pipeline, control system, two hardening agent jars 1, stop valve 2, filtrator, volume pump 4, impact damper 5 and liquid level gauges 6.
Described hardening agent jar 1 is used to hold hardening agent, and two described hardening agent jars 1 are equipped with A hardening agent (high acid value hardening agent) and B hardening agent (low acid number hardening agent) respectively.Described stop valve 2 connects the hardening agent delivery outlet of described hardening agent jar 1, is used to control the ON/OFF that hardening agent liquid is carried, and is convenient to overhaul of the equipments.Described filtrator is connected with the output terminal of described stop valve 2, is used for filtering the impurity of hardening agent, guarantees the quality of hardening agent, and described in the present embodiment filtrator is a y-type filter 3.Described volume pump 4 is connected with the output terminal of described y-type filter 3, two described volume pumps 4 are respectively applied for quantitative output A, two kinds of hardening agent of B, be A volume pump and B volume pump, and each described volume pump 4 also further is connected with the volume pump arrangements for speed regulation, and the volume pump arrangements for speed regulation that are electrically connected with described volume pump 4 link to each other with described control system.Described volume pump arrangements for speed regulation are used for control, adjust described volume pump 4, and then the output quantity of regulating hardening agent liquid, described in the present embodiment volume pump arrangements for speed regulation are frequency converter, i.e. A pump frequency conversion device and B pump frequency conversion device, and described frequency converter is used to control, adjust the frequency of described volume pump 4.Certainly, in other embodiments, described volume pump arrangements for speed regulation also can be devices such as direct current modulator.Described impact damper 5 is connected with the output terminal of described volume pump 4, and described impact damper 5 is used for slowing down the liquid pulse of described pipeline, guarantees that the flow of hardening agent liquid is steady, stablizes.On the described pipeline between described volume pump 4 and the described impact damper 5, also be connected with safety valve 11 by threeway, the output terminal of described safety valve 11 links to each other with described pipeline between described stop valve 2 and the described y-type filter 3, and then connects the input end of described volume pump 4.Described safety valve 11 is used for the unnecessary hardening agent liquid that is pumped by described volume pump 4 is carried back the input end of described volume pump 4.On each described hardening agent jar 1, be equipped with liquid level gauge 6, be used to show the hardening agent liquid level level in the described hardening agent jar 1, avoid because the interior hardening agent of described hardening agent jar 1 is very few or use up the generation that causes the antiquated sand type.Be connected with counterbalance valve 10 on the described pipeline that two described impact damper 5 output terminals are connected, described counterbalance valve 10 is used to prevent when described volume pump 4 top hole pressures are excessive that hardening agent liquid flows backwards and damages described volume pump 4.The output terminal of two described counterbalance valves 10 connects mixing duct by threeway, and the hardening agent that described mixing duct connects puddle mixer adds inlet.Described mixing duct is provided with flow detector, and described in the present embodiment flow detector is an intelligent flow meter 7, and described intelligent flow meter 7 is used to measure the total flow of A, two kinds of hardening agent of B.The output terminal of described intelligent flow meter 7 is connected with solenoid valve, described in the present embodiment solenoid valve is an air-operated solenoid valve 8, described air-operated solenoid valve 8 is positioned at the delivery outlet position of described mixing duct, make described mixing duct be communicated with the pressure gas input channel, be used for adding inlet position feeding pressurized air to the described hardening agent of described puddle mixer, to increase the fluid pressure of hardening agent, make mulling more even, the on/off of described air-operated solenoid valve 8 is controlled by described control system, thereby realizes the adjusting to the hardening agent fluid pressure.Described hardening agent automatic control equipment also comprises the sand temperature sensor 9 that is used to measure the sand temperature.
Described control system is connected with upper managing computer by repeater, sends/receive various signals, the communication between realization and the described upper managing computer.Described repeater is a kind of device that connects network line, is used for two-way forwarding physical signalling between two network nodes.Described upper managing computer is that a kind of people of making can directly send the computing machine of controlling order and then the described hardening agent automatic control equipment operation of management control, can show on its screen that various signals change, the general PC (Personal Computer, personal computer) that adopts.Described control system also is connected with touch-screen, carries out control operation with the handled easily personnel.Described control system comprises temperature detecting unit and interlock control system.Described temperature detecting unit is connected with described sand temperature sensor 9, thereby obtains temperature signal.Described interlock control system comprises the PLC control module, the pump detecting unit, Level Detection unit and the puddle mixer detecting unit that link to each other with the signal input part of described PLC control module, and the interlocked control unit that links to each other with the signal output part of described PLC control module.Whether described pump detecting unit connects described A volume pump of control and B volume pump, be used to monitor described A volume pump and B volume pump and move normally; Described Level Detection unit connects the described liquid level gauge 6 of control, is used to monitor the liquid level level in the described hardening agent jar 1; Whether described puddle mixer detecting unit is connected with described puddle mixer, be used to monitor described puddle mixer and move normally.Described interlocked control unit can be relay or other circuit arrangements.Described interlocked control unit is connected with the puddle mixer control system with described frequency converter, and then the startup by the described volume pump 4 of described Frequency Converter Control/stop, control the startup of described puddle mixer/stop by described puddle mixer control system, above-mentioned control can be adopted and cut off motor circuit or other control modes, makes that the volume pump of described hardening agent automatic control equipment and described puddle mixer can synchronous operations.When detecting described hardening agent automatic control equipment or described puddle mixer and break down, stop the operation of described volume pump and described puddle mixer simultaneously and report to the police, in time fix a breakdown with alert and plant maintenance personnel, and when line pressure is excessive, the hardening agent liquid that has pumped can be back to the input end of described volume pump 4 by described safety valve 11, need not to be provided with again parts such as return line and three-way solenoid valve, in case hardening agent liquid just can not pumped again in described volume pump and described puddle mixer back all out of service, thereby can fully guarantee under the prerequisite of production safety, described pipeline is simplified greatly, part of appliance quantity reduces, the physical damage rate reduces, and the maintenance rate of equipment reduces, and has reduced cost of equipment maintenance, reduce the sand mold rejection rate, guarantee production efficiency.
As shown in Figure 2, details are as follows for the principle process of the utility model hardening agent automatic control equipment: detect the sand temperature by described sand temperature sensor, send temperature signal to described temperature detecting unit, and then send described PLC control module to; Described PLC control module carries out processing data information to it, and itself and predefined process curve figure analyzed comparison, determine two kinds of hardening agent of A, B addition separately, send control signal by described PLC control module to A, B pump frequency conversion device again, automatically control described A volume pump and B volume pump, thereby realized adjustment, reached the best proportioning of hardening agent, guaranteed to solidify quality the hardening agent output quantity.Monitor described A respectively by described pump detecting unit and described puddle mixer detecting unit, whether two volume pumps of B and described puddle mixer move normally, and whether be lower than warning value by the liquid level level in the described hardening agent jar of described Level Detection unit monitors 1, in case find described A, two volume pumps of B, described puddle mixer operation exception, when perhaps described liquid level gauge shows that the hardening agent liquid in the described hardening agent jar is very few and is lower than warning value, the said pump detecting unit, Level Detection unit or puddle mixer detecting unit just in time send to abnormal signal described PLC control module, send control signal by described PLC control module to described interlocked control unit, send control signal to described frequency converter and described puddle mixer control system respectively by described interlocked control unit again, make described volume pump and described puddle mixer out of service and report to the police, simultaneously by described A, the hardening agent liquid that two volume pumps of B pump then is back to the input end of described volume pump by described safety valve.
Details are as follows for the concrete course of work of the described hardening agent automatic control equipment that the utility model provides:
1, at first, add A hardening agent and B hardening agent respectively in two described hardening agent jars 1, press the power knob of described hardening agent automatic control equipment then, its power light will light, otherwise device fails.
2, by the operation touch-screen, select curing rate according to concrete job requirement.
3, by the described touch-screen of operation, select equipment running status, manual operation.
4, by the described touch-screen of operation, two volume pumps of A, B are started working, if occur unusually, then devices illustrated breaks down, and answers emergency stop, cuts off the electricity supply, and checks fault.
5, can adjust the gear of curing rate in the course of the work arbitrarily.
6, end-of-job, the closing device power supply is shut down described hardening agent automatic control equipment.
In other embodiments, the output terminal of safety valve can also directly connect back the hardening agent jar, so that unnecessary hardening agent liquid earial drainage returns the hardening agent jar, economizes on resources, and avoids waste.
Obviously, the foregoing description only is for example clearly is described, and is not the qualification to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all embodiments.And conspicuous variation of being extended out thus or change still are among the protection domain of the utility model creation.
Claims (10)
1. hardening agent automatic control equipment, it is characterized in that: comprise control system, at least two hardening agent jars and respectively with the tank connected volume pump of described hardening agent, the volume pump arrangements for speed regulation that are electrically connected with described volume pump link to each other with described control system, described metering delivery side of pump all is communicated with the input port of a mixing duct, the hardening agent that the delivery outlet of described mixing duct connects puddle mixer adds inlet, and described control system comprises the interlock control system that is used to control described volume pump and described puddle mixer synchronous operation.
2. hardening agent automatic control equipment according to claim 1, it is characterized in that: described interlock control system comprises PLC control module, interlocked control unit, and the pump detecting unit, Level Detection unit and the puddle mixer detecting unit that link to each other with the signal input part of described PLC control module, the signal output part of described PLC control module links to each other with the input end of described interlocked control unit, and the output terminal of described interlocked control unit links to each other with the puddle mixer control system with described volume pump arrangements for speed regulation.
3. hardening agent automatic control equipment according to claim 1 and 2, it is characterized in that: the signal input part of described control system links to each other with sand temperature pick-up unit, described sand temperature pick-up unit comprises the sand temperature sensor, and described sand temperature sensor links to each other with the temperature detecting unit of described control system.
4. hardening agent automatic control equipment according to claim 1 and 2 is characterized in that: described volume pump arrangements for speed regulation are frequency converter.
5. hardening agent automatic control equipment according to claim 1 and 2 is characterized in that: also comprise the impact damper that is connected with described metering delivery side of pump.
6. hardening agent automatic control equipment according to claim 1 and 2 is characterized in that: also comprise the counterbalance valve that is arranged on the pipeline that described volume pump output terminal connected.
7. hardening agent automatic control equipment according to claim 1 and 2 is characterized in that: also comprise the safety valve that is connected with described metering delivery side of pump, the output terminal of described safety valve is connected with the input end of described hardening agent jar or described volume pump.
8. hardening agent automatic control equipment according to claim 2 is characterized in that: also comprise the flow detector that is connected with described PLC control module, described flow detector is arranged in the described mixing duct.
9. hardening agent automatic control equipment according to claim 1 and 2 is characterized in that: described mixing duct also is connected with the pressure gas input channel.
10. hardening agent automatic control equipment according to claim 1 and 2 is characterized in that: described control system is connected with upper managing computer by repeater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201273788U CN201226107Y (en) | 2007-12-29 | 2008-07-28 | Automatic control device for firming agent |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200720310875 | 2007-12-29 | ||
| CN200720310875.7 | 2007-12-29 | ||
| CNU2008201273788U CN201226107Y (en) | 2007-12-29 | 2008-07-28 | Automatic control device for firming agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201226107Y true CN201226107Y (en) | 2009-04-22 |
Family
ID=40596798
Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201273788U Expired - Lifetime CN201226107Y (en) | 2007-12-29 | 2008-07-28 | Automatic control device for firming agent |
| CNU2008201273754U Expired - Lifetime CN201223921Y (en) | 2007-12-29 | 2008-07-28 | Curing agent control instrument with buffer |
| CNU200820127374XU Expired - Lifetime CN201229502Y (en) | 2007-12-29 | 2008-07-28 | Curing agent control instrument having double end metering pump |
| CNU2008201273769U Expired - Lifetime CN201226108Y (en) | 2007-12-29 | 2008-07-28 | Automatic control instrument for firming agent |
| CNU2008201324281U Expired - Lifetime CN201259637Y (en) | 2007-12-29 | 2008-08-13 | Caking agent-curing agent mixture ratio control instrument for casting |
Family Applications After (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201273754U Expired - Lifetime CN201223921Y (en) | 2007-12-29 | 2008-07-28 | Curing agent control instrument with buffer |
| CNU200820127374XU Expired - Lifetime CN201229502Y (en) | 2007-12-29 | 2008-07-28 | Curing agent control instrument having double end metering pump |
| CNU2008201273769U Expired - Lifetime CN201226108Y (en) | 2007-12-29 | 2008-07-28 | Automatic control instrument for firming agent |
| CNU2008201324281U Expired - Lifetime CN201259637Y (en) | 2007-12-29 | 2008-08-13 | Caking agent-curing agent mixture ratio control instrument for casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (5) | CN201226107Y (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101722273B (en) * | 2009-11-12 | 2011-04-13 | 无锡锡南铸造机械有限公司 | Foundry sand charging device |
| CN103785792B (en) * | 2014-03-07 | 2015-09-16 | 孙晓宇 | A kind of continuous clay sand mixing machine |
| CN106311971A (en) * | 2015-06-30 | 2017-01-11 | 共享装备有限公司 | Liquid material control system of sand mixer |
| CN106270376A (en) * | 2016-09-27 | 2017-01-04 | 苏州欣苏诚铸造机械有限公司 | Liquid material intelligence control system for mulling moulding |
| CN107214295A (en) * | 2017-06-19 | 2017-09-29 | 宝得粉末注射成形（常熟）有限公司 | Self-hardening sand mixing device |
| CN108907068B (en) * | 2018-06-29 | 2021-07-06 | 宁夏共享化工有限公司 | High-temperature curing agent for phenolic resin in field of cast 3D inkjet printing |
| CN111069526A (en) * | 2019-12-05 | 2020-04-28 | 江苏吉鑫风能科技股份有限公司 | Energy-saving consumption-reducing automatic resin quantifying method and system |
| CN114812765A (en) * | 2022-04-13 | 2022-07-29 | 共享智能铸造产业创新中心有限公司 | Liquid material accumulated metering and discharging judgment method and mobile sand mixing system |
-
2008
- 2008-07-28 CN CNU2008201273788U patent/CN201226107Y/en not_active Expired - Lifetime
- 2008-07-28 CN CNU2008201273754U patent/CN201223921Y/en not_active Expired - Lifetime
- 2008-07-28 CN CNU200820127374XU patent/CN201229502Y/en not_active Expired - Lifetime
- 2008-07-28 CN CNU2008201273769U patent/CN201226108Y/en not_active Expired - Lifetime
- 2008-08-13 CN CNU2008201324281U patent/CN201259637Y/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN201259637Y (en) | 2009-06-17 |
| CN201226108Y (en) | 2009-04-22 |
| CN201229502Y (en) | 2009-04-29 |
| CN201223921Y (en) | 2009-04-22 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Granted publication date: 20090422 |