CN201974705U - Quantitative controller of two-component curing agents - Google Patents
Quantitative controller of two-component curing agents Download PDFInfo
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- CN201974705U CN201974705U CN 201120000260 CN201120000260U CN201974705U CN 201974705 U CN201974705 U CN 201974705U CN 201120000260 CN201120000260 CN 201120000260 CN 201120000260 U CN201120000260 U CN 201120000260U CN 201974705 U CN201974705 U CN 201974705U
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- hardening agent
- temperature
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- humidity
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Abstract
The utility model aims to provide a quantitative controller of two-component curing agents. The quantitative controller comprises a PLC (programmable logic controller) control unit, two curing agent tanks, flow rate detection devices respectively connected with output ports of the curing agent tanks, and a sand temperature detection device and an environmental temperature detection device which are respectively connected with an analog quantity input module of the PLC control unit, wherein, an analog quantity output module of the PLC control unit is connected with the flow rate detection devices. The quantitative controller is characterized in that the analog quantity input module of the PLC control unit is further connected with an environmental humidity detection device. The quantitative controller can automatically regulate the addition amount of the two-component curing agents according to the sand temperature, the environmental temperature and the environmental humidity.
Description
Technical field
The utility model relates to casting and molding, coremaking apparatus field, particularly a kind of pair of quantitative controller of component hardening agent.
Background technology
At present, in using self-hardening furan resin sand moulding, coremaking process, it is very outstanding that the importance of operating temperature seems.Under the constant situation of other conditions, 10 ℃ of the every risings of sand temperature, then curing rate adds fast again; The resin sand of same curing agent content, 5 ℃ of the every risings of sand temperature are because of accelerating to make to shorten 1/3～1/4 stripping time set time.When the identical and room temperature of hardener dose not simultaneously, the low then up time of temperature is long, the temperature height then the up time short, its trend is 10 ℃ of up times shortenings 1/3 ~ 1/2 of the every increase of temperature.Under different seasons and sand temperature condition,, can be an adjustment interval generally by 5 ℃ of variation of ambient temperature in order to keep certain up time.Environment temperature is mainly adjusted hardener dose more than 10 ℃; Below 10 ℃, should adopt the low temperature hardening agent.
In self-hardening furan resin sand type hardening process, because the polycondensation reaction of furane resin has moisture to separate out, after moisture was discharged the sand mold outside, solidification process just can be proceeded, the sclerosis of resin bonded sand mould (core) is from carrying out outside to inside, and this is by the characteristic decision of furan resin-sand.Can influence the velocity of evaporation of moisture when ambient humidity is big, sclerous reaction is slowed down, even can cause and react carry out not thorough, sand mold solidifies not exclusively, and whole intensity is low, influences casting quality, and especially in heavy castings were produced, this problem was particularly outstanding.
Therefore, when sand temperature, environment temperature and humidity change, often need manually to adjust the kind and the addition of hardening agent, to satisfy the requirement of core sand to the up time.Manually-operated often has certain randomness and uncertain, will have a strong impact on sand mold (core) quality.
In patent CN1511660A, a kind of hardening agent auto-controller is disclosed, mainly solve the harmful effect of sand temperature variation to moulding, coremaking, its course of work is to carry out processing data information by the CPU processor after temperature sensor records sand temperature signal, control A pump and B pump again, adjust flow, thereby realize the best proportioning of hardening agent.In patent CN201226108Y, a kind of hardening agent auto-controller is disclosed, its sand temperature sensor is connected with the PLC control module by the temperature microcontroller respectively with environment temperature sensor, can adjust the hardening agent addition automatically according to sand benign environment temperature.But these patents are not all considered the influence of ambient humidity to the furan resin-sand curing characteristics.
Summary of the invention
The purpose of this utility model is to provide a kind of pair of quantitative controller of component hardening agent, and this quantitative controller can be adjusted the addition of two component hardening agent automatically according to sand temperature, environment temperature and humidity.
The quantitative controller of two component hardening agent that the utility model specifically provides, comprise PLC control module, two hardening agent jars, the flow detector that is connected with hardening agent jar delivery outlet respectively, and the sand temperature pick-up unit and the ambient temperature detection device that link to each other with the analog quantity load module of PLC control module respectively, the analog output module of PLC control module links to each other with flow detector, it is characterized in that: the analog quantity load module of described PLC control module also is connected with the ambient humidity pick-up unit.
The quantitative controller of two component hardening agent that the utility model provides, it is characterized in that: described ambient humidity pick-up unit comprises humidity sensor and humidity microcontroller, humidity sensor is installed on the quantitative controller of hardening agent inside, and humidity sensor links to each other with the analog quantity load module of PLC control module by the humidity microcontroller.
The quantitative controller of two component hardening agent that the utility model provides, it is characterized in that: described ambient temperature detection device comprises temperature sensor and temperature microcontroller, temperature sensor is installed on the quantitative controller of hardening agent inside, and temperature sensor links to each other with the analog quantity load module of PLC control module by the temperature microcontroller.
The quantitative controller of two component hardening agent that the utility model provides, it is characterized in that: described sand temperature pick-up unit comprises temperature sensor and temperature microcontroller, temperature sensor is installed in the dress sand hopper of puddle mixer, and temperature sensor links to each other with the analog quantity load module of PLC control module by the temperature microcontroller.
The quantitative controller of two component hardening agent that the utility model provides, it is characterized in that: described flow detector is a volume pump, the analog output module of PLC control module is connected to frequency converter, frequency converter is connected with volume pump again, controls the amount of volume pump output hardening agent liquid by the frequency of control of conversion device.
The quantitative controller of two component hardening agent that the utility model provides, it is characterized in that: the output terminal of described flow detector is connected with surge tank.
Compared with prior art, the quantitative controller of the hardening agent that the utility model provides has the following advantages: taken into full account the influence to the self-hardening furan resin sand curing characteristics of sand temperature, environment temperature and 3 major parameters of humidity, addition from normal moveout correction, adjustment curing agent component I and composition, and can make it to reach the optimum value of proportioning, with the up time of assurance sand mold (core) sand and stablizing of sand mold (core) intensity, guarantee casting quality.
Description of drawings
Fig. 1 is a schematic diagram of the present utility model;
Fig. 2 is that (Reference numeral is expressed as process flow diagram of the present utility model among the figure: 1-hardening agent jar, the 2-y-type filter, the 3-diaphragm metering pump, the 4-surge tank, 5-three-way solenoid valve, 6-puddle mixer sand hopper, 7-sand temperature sensor, the 8-environment temperature sensor, 9-ambient humidity sensor, 10-PLC control module).
Embodiment
As shown in Figure 1, of the present invention pair of component hardening agent auto-controller comprises PLC control module, sand temperature pick-up unit, ambient temperature detection device, ambient humidity pick-up unit, flow detector (volume pump).
Described sand temperature pick-up unit comprises temperature sensor and temperature microcontroller, temperature sensor is installed in the dress sand hopper of puddle mixer, measure the sand temperature in real time, send the resistance signal of this sand temperature of expression to be connected temperature microcontroller with temperature sensor, the temperature microcontroller is processed into the discernible sand temperature of PLC control module digital signal with this sand temperature resistance signal, offers the analog quantity load module of the PLC control module that is attached thereto.
Described ambient temperature detection device comprises temperature sensor and temperature microcontroller, temperature sensor is installed in the quantitative controller of the hardening agent inside, real-time measures ambient temperature, send the resistance signal of this temperature of expression to be connected temperature microcontroller with temperature sensor, the temperature microcontroller is processed into the discernible environment temperature digital signal of PLC control module with this environment temperature resistance signal, offers the analog quantity load module of the PLC control module that is attached thereto.
Described ambient humidity pick-up unit comprises humidity sensor and humidity microcontroller, humidity sensor is installed in the quantitative controller of the hardening agent inside, real-time measures ambient humidity, send the resistance signal of this humidity of expression to be connected humidity microcontroller with temperature sensor, the humidity microcontroller is processed into the discernible humidity digital signal of PLC control module with this humidity resistance signal, offers the analog quantity load module of the PLC control module that is attached thereto.
The analog output module of described PLC control module is connected to frequency converter, and frequency converter is connected with volume pump again, controls the amount of volume pump output hardening agent liquid by the frequency of control of conversion device.
As shown in Figure 2, hardening agent jar 1 is to be used to store the device of producing with hardening agent, and two hardening agent jars 1 store curing agent component I (high acid value) and composition (low acid number) respectively.Be arranged on the impurity that y-type filter 2 on the output channel is used for filtering hardening agent, the output terminal of two y-type filters 2 connects diaphragm metering pump 3 respectively, the output terminal of volume pump 3 is connected with surge tank 4, impact damper 4 is used to reduce the pulse that volume pump 3 output hardening agent liquid produce, and guarantees the stability of flow of output liquid.The output terminal of impact damper 4 is connected with three-way solenoid valve 5, and an end of three-way solenoid valve 5 connects back hardening agent jar 1, and the other end connects hardening agent mixed pipe line (puddle mixer), and the hardening agent mixed pipe line connects puddle mixer hardening agent input end again.Sand temperature sensor 7 is placed in the puddle mixer sand hopper 6, and the sand temperature signal that records is passed PLC control module 10 back.Environment temperature sensor 8 and ambient humidity sensor 9 are placed in hardening agent controller inside respectively, and environment temperature that records and signal are passed PLC control module 10 respectively back.PLC control module 10 is according to the sand temperature, environment temperature and the ambient humidity data-signal that obtain, casting technique curve data contrast with prior storage, determine required hardening agent addition data, send instruction and give volume pump 3 that volume pump 3 is exported quantitative hardening agent to puddle mixer by instruction.
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 amplified out thus or change still are among the protection domain of the utility model creation.
Claims (6)
1. the quantitative controller of two component hardening agent, comprise PLC control module, two hardening agent jars, the flow detector that is connected with hardening agent jar delivery outlet respectively, and the sand temperature pick-up unit and the ambient temperature detection device that link to each other with the analog quantity load module of PLC control module respectively, the analog output module of PLC control module links to each other with flow detector, it is characterized in that: the analog quantity load module of described PLC control module also is connected with the ambient humidity pick-up unit.
2. according to described pair of quantitative controller of component hardening agent of claim 1, it is characterized in that: described ambient humidity pick-up unit comprises humidity sensor and humidity microcontroller, humidity sensor is installed on the quantitative controller of hardening agent inside, and humidity sensor links to each other with the analog quantity load module of PLC control module by the humidity microcontroller.
3. according to claim 1 or 2 described pairs of quantitative controllers of component hardening agent, it is characterized in that: described ambient temperature detection device comprises temperature sensor and temperature microcontroller, temperature sensor is installed on the quantitative controller of hardening agent inside, and temperature sensor links to each other with the analog quantity load module of PLC control module by the temperature microcontroller.
4. according to claim 1 or 2 described pairs of quantitative controllers of component hardening agent, it is characterized in that: described sand temperature pick-up unit comprises temperature sensor and temperature microcontroller, temperature sensor is installed in the dress sand hopper of puddle mixer, and temperature sensor links to each other with the analog quantity load module of PLC control module by the temperature microcontroller.
5. according to claim 1 or 2 described pairs of quantitative controllers of component hardening agent, it is characterized in that: described flow detector is a volume pump, the analog output module of PLC control module is connected to frequency converter, frequency converter is connected with volume pump again, controls the amount of volume pump output hardening agent liquid by the frequency of control of conversion device.
6. according to claim 1 or 5 described pairs of quantitative controllers of component hardening agent, it is characterized in that: the output terminal of described flow detector is connected with surge tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120000260 CN201974705U (en) | 2011-01-04 | 2011-01-04 | Quantitative controller of two-component curing agents |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120000260 CN201974705U (en) | 2011-01-04 | 2011-01-04 | Quantitative controller of two-component curing agents |
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| CN201974705U true CN201974705U (en) | 2011-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201120000260 Expired - Fee Related CN201974705U (en) | 2011-01-04 | 2011-01-04 | Quantitative controller of two-component curing agents |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102847879A (en) * | 2011-10-24 | 2013-01-02 | 南通天华和睿科技创业有限公司 | Casting curing agent content auxiliary control apparatus |
| 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 |
| CN106311971A (en) * | 2015-06-30 | 2017-01-11 | 共享装备有限公司 | Liquid material control system of sand mixer |
| CN111437770A (en) * | 2020-04-07 | 2020-07-24 | 广东博智林机器人有限公司 | Proportioning system and method |
-
2011
- 2011-01-04 CN CN 201120000260 patent/CN201974705U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102847879A (en) * | 2011-10-24 | 2013-01-02 | 南通天华和睿科技创业有限公司 | Casting curing agent content auxiliary control apparatus |
| 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 |
| CN111437770A (en) * | 2020-04-07 | 2020-07-24 | 广东博智林机器人有限公司 | Proportioning system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20180104 |