CN201110819Y - Intellectualized overlay film sand hot draw strength detector - Google Patents
Intellectualized overlay film sand hot draw strength detector Download PDFInfo
- Publication number
- CN201110819Y CN201110819Y CNU2007201756416U CN200720175641U CN201110819Y CN 201110819 Y CN201110819 Y CN 201110819Y CN U2007201756416 U CNU2007201756416 U CN U2007201756416U CN 200720175641 U CN200720175641 U CN 200720175641U CN 201110819 Y CN201110819 Y CN 201110819Y
- Authority
- CN
- China
- Prior art keywords
- sample mould
- intelligent
- plc
- precoated sand
- linear reciprocating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000004576 sand Substances 0.000 title claims abstract description 27
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 230000033001 locomotion Effects 0.000 claims abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 239000004973 liquid crystal related substance Substances 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract description 2
- 238000005070 sampling Methods 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000010112 shell-mould casting Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The utility model discloses an intelligent measuring instrument for heat tensile strength of coated sand, which comprises a heating system, a loading system and a measurement and control system. A heating plate of the heating system is disposed below a sample mold of the molding system, the bottom portion of the sample mold is provided with a groove, the heating plate opposite to the sample mold and arranged under thereof is provided with a guide rail, the sample mode comprises a fixed portion and a movable portion, and the movable portion of the sample mold can be in reciprocating motion along the guide rail. In the intelligent measuring instrument for heat tensile strength of coated sand of the utility model, the heating system and a loading measuring device are disposed on a same instrument, thereby realizing continuous sampling and detection and intelligent control of PLC, and the intelligent measuring instrument for heat tensile strength of coated sand has the advantages of high measuring accuracy, simple structure, convenient use, reliable safety and the like.
Description
Technical field
The utility model belongs to casting field precoated sand detecting instrument, is specifically related to a kind of precoated sand hot-drawn intensity detector.
Background technology
Precoated sand has characteristics such as heat curing intensity height, gas forming amount is low, collapsibility is good with it, be widely used in surface quality require high, inner-cavity structure is complicated and the production of foundry goods such as dimensional accuracy control strictness.In the precoated sand production run,, often use precoated sand hot-drawn intensity detector that precoated sand is detected for quality, the performance of grasping precoated sand.
After the hot tensile strength of precoated sand is meant that the type sample of precoated sand is subjected to thermmohardening, the tensile strength that when hot, records.With the hot strength of its simulation shell mould when shell molding machine ejects.The present method of testing of China is: be made into the 8 word samples that thickness is 11.18mm with the precoated sand sampling machine, after ejecting sample, promptly be placed on its tensile strength of hydraulic universal strength test aircraft measurements, seek out sample and be no more than 15s to measuring the time of finishing.Sample preparation is carried out on two different instruments with test, be accomplished to from sample production and be transferred on the hydraulic universal strength-testing machine, need a period of time, though it is very short during this period of time, but there are uncertain factors such as heat dissipation, precoated sand distortion in the transfer process, can not real simulated measure the intensity of shell mould when shell molding machine ejects; And the data poor repeatability of hydraulic pressure strength instrument test, out of true; Operate loaded down with trivial details, working strength is big, manually shifts high temp objects, constantly threatens personal safety; By the hydralic pressure gauge reading, there is very big error.
The utility model content
In order to overcome the above-mentioned defective that the known technology field exists, the purpose of this utility model is, a kind of novel precoated sand hot-drawn intensity detector is provided, realized the continuous operation of sample preparation, detection, and intelligent control, have the measuring accuracy height, easy to operate, advantages of simple structure and simple.
The intelligent precoated sand hot-drawn intensity detector that the utility model provides, it comprises heating system, loading system, TT﹠C system, the heating plate of described heating system is arranged on below the sample mould of loading system.Described sample mould bottom is provided with groove, and the heating plate below the corresponding therewith sample mould is provided with guide rail, and described sample mould comprises fixed part, movable part, and the movable part of sample mould can move reciprocatingly along guide rail.
Described loading system comprises sample mould, draws tool, pulling force sensor, screw mandrel, linear reciprocating motor, described sample mould, draws the coaxial successively installation of tool, pulling force sensor, screw mandrel, linear reciprocating motor.Described TT﹠C system is arranged on linear reciprocating motor one end, comprise programmable controller (being called for short PLC), MPT liquid crystal display terminal, A/D conversion module, write the PLC of control program in advance, send the motion of instruction control linear reciprocating motor, pulling force sensor is passed to the A/D conversion module with the pulling force signal, after conversion, pass to PLC, handle the acquisition readable data through PLC and be presented on the MPT liquid crystal display terminal.
The intelligent precoated sand hot-drawn intensity detector that the utility model provides, heating system with load test setting on same instrument, realized the continuous operation of sample preparation, detection, and PLC intelligent control, has the measuring accuracy height, advantage such as simple in structure, easy to operate, safe and reliable.
Description of drawings
Fig. 1 is the loading system structural representation of an embodiment of the utility model;
Fig. 2 is that the A-A of Fig. 1 is to the sectional structure synoptic diagram;
Fig. 3 is the TT﹠C system synoptic diagram of the utility model embodiment;
Fig. 4 is the utility model heating system circuit diagram;
Fig. 5 is the utility model TT﹠C system circuit diagram.
Mark among the figure:
1. sample mould; 2. draw tool; 3. setscrew nut; 4. pulling force sensor; 5. screw mandrel; 6. linear reciprocating motor; 7. microswitch; 8. spacer; 9. the fixed part of sample mould; 10. the movable part of sample mould; 11. heating plate; 12. groove; 13. guide rail; 14. bearing.
Embodiment
With reference to the accompanying drawings, in conjunction with an embodiment, the intelligent precoated sand hot-drawn intensity detector that the utility model is provided is described in detail.
Embodiment
With reference to Fig. 1,2,3,4,5, the intelligent precoated sand hot-drawn intensity detector of present embodiment, it comprises heating system, loading system, TT﹠C system, heating system, loading system, TT﹠C system are arranged on the bearing 14.The heating plate 11 of described heating system is arranged on below the sample mould 1 of loading system.Described sample mould 1 bottom is provided with groove 12, and the heating plate 11 below the corresponding therewith sample mould is provided with guide rail 13, and described sample mould 1 comprises fixed part 9, movable part 10, and the movable part 10 of sample mould can move reciprocatingly along guide rail 13.
Described heating system comprises temperature controller, K type thermopair, heater switch, solid-state relay and heating plate 11.Described loading system comprises sample mould 1, draws tool 2, setscrew nut 3, pulling force sensor 4, screw mandrel 5, linear reciprocating motor 6, microswitch 7, spacer 8, described sample mould 1, draw tool 2, setscrew nut 3, pulling force sensor 4, screw mandrel 5, linear reciprocating motor 6, microswitch 7, the coaxial successively installation of spacer 8.Described TT﹠C system is arranged on an end of linear reciprocating motor 6, comprise PLC, MPT liquid crystal display terminal, A/D conversion module, write the PLC of control program in advance, send 6 motions of instruction control linear reciprocating motor, pulling force sensor 4 is passed to the A/D conversion module with the pulling force signal, after conversion, pass to PLC, handle the acquisition readable data through PLC and be presented on the MPT liquid crystal display terminal.
When testing the hot-drawn intensity of precoated sand: at first start heating system, heating sample mould to 223 ℃, then precoated sand is poured in the sample mould, obtaining thickness is the 8 word samples of 11.18mm, heats after 4 minutes, draw the tool motion by the drive of PLC control linear reciprocating motor, thereby break sample, break sample after, linear reciprocating motor counter-rotating, make the sample mould return to treat that next time, test was used, the result of test reads from the MPT liquid crystal display terminal.
Claims (4)
1. intelligent precoated sand hot-drawn intensity detector, it is characterized in that: it comprises heating system, loading system, TT﹠C system, the heating plate of described heating system is arranged on below the sample mould of loading system.
2. intelligent precoated sand hot-drawn intensity detector according to claim 1, it is characterized in that: described loading system comprises sample mould, draws tool, pulling force sensor, screw mandrel, linear reciprocating motor, described sample mould, draws the coaxial successively installation of tool, pulling force sensor, screw mandrel, linear reciprocating motor.
3. intelligent precoated sand hot-drawn intensity detector according to claim 1, it is characterized in that: described TT﹠C system is arranged on linear reciprocating motor one end, comprise programmable controller (being called for short PLC), MPT liquid crystal display terminal, A/D conversion module, write the PLC of control program in advance, send the motion of instruction control linear reciprocating motor, pulling force sensor is passed to the A/D conversion module with the pulling force signal, after conversion, pass to PLC, handle the acquisition readable data through PLC and be presented on the MPT liquid crystal display terminal.
4. according to claim 1 or 2 or 3 described intelligent precoated sand hot-drawn intensity detectors, it is characterized in that: described sample mould bottom is provided with groove, heating plate below the corresponding therewith sample mould is provided with guide rail, described sample mould comprises fixed part, movable part, and the movable part of sample mould can move reciprocatingly along guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201756416U CN201110819Y (en) | 2007-09-24 | 2007-09-24 | Intellectualized overlay film sand hot draw strength detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201756416U CN201110819Y (en) | 2007-09-24 | 2007-09-24 | Intellectualized overlay film sand hot draw strength detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201110819Y true CN201110819Y (en) | 2008-09-03 |
Family
ID=39895354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201756416U Expired - Fee Related CN201110819Y (en) | 2007-09-24 | 2007-09-24 | Intellectualized overlay film sand hot draw strength detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201110819Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313671A (en) * | 2010-12-09 | 2012-01-11 | 中国一拖集团有限公司 | Method for determining high-temperature performance of coated sand |
-
2007
- 2007-09-24 CN CNU2007201756416U patent/CN201110819Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313671A (en) * | 2010-12-09 | 2012-01-11 | 中国一拖集团有限公司 | Method for determining high-temperature performance of coated sand |
| CN102313671B (en) * | 2010-12-09 | 2013-03-13 | 中国一拖集团有限公司 | Method for determining high-temperature performance of coated sand |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |