CN111272829A - Continuous testing equipment and method for temperature drift of rolled raw material - Google Patents
Continuous testing equipment and method for temperature drift of rolled raw material Download PDFInfo
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- CN111272829A CN111272829A CN202010262212.2A CN202010262212A CN111272829A CN 111272829 A CN111272829 A CN 111272829A CN 202010262212 A CN202010262212 A CN 202010262212A CN 111272829 A CN111272829 A CN 111272829A
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- 238000012360 testing method Methods 0.000 title claims abstract description 77
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- 238000010438 heat treatment Methods 0.000 claims abstract description 35
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 238000005485 electric heating Methods 0.000 claims description 19
- 239000000523 sample Substances 0.000 claims description 18
- 238000007599 discharging Methods 0.000 claims description 12
- 238000005096 rolling process Methods 0.000 claims description 10
- 230000000712 assembly Effects 0.000 claims description 9
- 238000000429 assembly Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000005070 sampling Methods 0.000 claims description 9
- 238000007664 blowing Methods 0.000 claims description 8
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- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/14—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
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Abstract
The invention relates to a continuous testing device for temperature drift of rolled raw materials and a testing method thereof, and the continuous testing device comprises a rack, a feeding assembly, a receiving assembly, a positioning guide assembly, a temperature control mechanism and a resistance value acquisition device, wherein the rack is provided with a testing station, the temperature control mechanism and the resistance value acquisition device are arranged on the testing station, the feeding assembly and the receiving assembly are arranged on two sides of the testing station, the rolled raw materials are placed on the feeding assembly and are conveyed to the testing station under the action of the feeding assembly and the receiving assembly through the guide of the positioning guide assembly, the temperature control mechanism controls the temperature of heating and cooling the materials on the testing station, and the resistance value acquisition device tests the resistance value of the materials on the testing station. On the premise of not intercepting the roll-shaped raw material, the invention realizes the continuous temperature drift test of any position of the whole roll of raw material, knows the temperature drift distribution and difference of the whole roll of raw material, improves the accuracy of the temperature drift of the whole roll of raw material and ensures the temperature drift performance of the same resistor product to be consistent.
Description
Technical Field
The invention relates to the technical field of resistor production, in particular to a continuous temperature drift test device and a test method for a coiled raw material.
Background
The smaller the temperature coefficient value is, the smaller the value of the resistance value of the resistor along with the change of the temperature is, and the higher the stability of the resistor is. With the more and more clear requirements of users on the temperature drift of the resistor, when the resistor with clear temperature drift requirements is produced, the temperature drift of raw materials for controlling the resistor becomes particularly necessary. Because the resistor raw material incoming materials are generally roll-shaped materials, the traditional temperature drift test is to intercept the materials at the head and tail of the roll material, place the intercepted materials on a thermostatic device to control the temperature of the materials, and acquire and test the resistance of the materials by utilizing a four-wire wiring method and a resistance tester in a matching way, the test method does not test the temperature drift of the whole roll material, so that unqualified raw materials in the roll material flow into production operation, and the temperature drift of resistor products of the same type is inconsistent; and cut the material test and can cause the material loss, the multistage material simultaneously carries out the temperature drift test in proper order and has increased material clamping number of times, has reduced efficiency of software testing.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides a continuous testing device and a testing method for the temperature drift of a coiled raw material.
In order to achieve the purpose, the technical scheme provided by the invention is as follows: the utility model provides a roll-like raw and other materials temperature floats continuous test equipment, includes frame, blowing subassembly, receipts material subassembly, location direction subassembly, temperature control mechanism and resistance collection system, the frame sets up test station, temperature control mechanism and resistance collection system all set up on test station, blowing subassembly and receipts material subassembly set up in test station both sides, and roll-like raw and other materials are placed on the blowing subassembly and are transported the material to test station through the guide of location direction subassembly under blowing subassembly and receipts material subassembly effect, temperature control mechanism heats up the temperature control of cooling to the material on the test station, resistance collection system tests the resistance to the material on the test station.
In the above technical scheme, the temperature control mechanism includes a moving seat, a driving cylinder, a first movable seat, a second movable seat, an upper heating assembly and a lower heating assembly, the upper heating assembly is disposed on the second movable seat, the lower heating assembly is disposed on the first movable seat, and a space for a material to pass through is formed between the upper heating assembly and the lower heating assembly and heats the material in the space; the driving cylinder is arranged on the moving seat, the first movable seat is connected with the driving end of the driving cylinder, and the first movable seat and the second movable seat are provided with a transmission assembly.
In the above technical scheme, transmission assembly is including the first rack, inert gear and the second rack that connect gradually, first rack, second rack set up respectively on first sliding seat, second sliding seat, first rack and second rack all set up along vertical direction, it reciprocates to drive the first sliding seat of actuating cylinder drive, transmission assembly drives the second sliding seat and moves in opposite directions or reverse direction with first sliding seat in step to distance between heating assembly, lower heating assembly and the material in the control.
In the above technical solution, the upper heating assembly and the lower heating assembly each include at least one electric heating plate.
In the technical scheme, a guide rail and a driving piece which are connected with the moving seat are arranged on the rack, the driving piece drives the moving seat to move along the guide rail, and the guide rail is arranged along the feeding direction vertical to the material; the driving piece is a motor or an air cylinder.
In the technical scheme, the resistance collecting device comprises a resistance tester, a first collecting assembly and a second collecting assembly, wherein the first collecting assembly and the second collecting assembly are arranged on the front side and the rear side of the temperature control mechanism along the material feeding direction, the first collecting assembly and the second collecting assembly are formed by two probes symmetrically arranged on the upper side and the lower side of the material, the probes are communicated with the resistance tester through wires, and the two probes of the same collecting assembly are movably arranged on the upper side and the lower side of the material through a clamp.
In the technical scheme, three groups of positioning and guiding assemblies are arranged on the rack at intervals, one side of the temperature control mechanism, which is close to the material discharging assembly, is provided with a group of positioning and guiding assemblies, the positioning and guiding assemblies comprise pressing wheels and bottom wheels which are symmetrically arranged on the upper side and the lower side of the material, and guiding deviation rectifying parts are arranged between the bottom wheels and the pressing wheels.
In the technical scheme, the discharging assembly and the receiving assembly respectively comprise a material rolling frame, and a rolling shaft is arranged on the material rolling frame.
In order to achieve the above object, the present invention further provides a method for continuously testing the temperature drift of a rolled raw material, wherein the method comprises the following steps:
placing and positioning a rolled raw material on a material rolling frame of a material discharging assembly, and drawing a material head of the rolled raw material onto the material rolling frame of a material receiving assembly;
collecting the resistance value of the material by adopting a four-wire method, and controlling the material to move along the positioning guide assembly by the discharging assembly and the receiving assembly by a distance a; the material on the clamp clamping test station enables four probes to form four resistance value sampling points, the driving cylinder drives the first movable seat and the second movable seat to move in the vertical direction in opposite directions, the electric heating plate is enabled to be close to the material and heat the material to a set T value1After the temperature, four resistance sampling points collect the material T1Resistance at temperature R1；
Step three, the electric heating plate heats or cools the material to T through the temperature controller2Acquiring material T at four resistance sampling points2Resistance at temperature R2By the formula TCR = (R)2-R1)/[R1*(T2-T1)]Calculate the section of material T2Temperature drift of temperature TCR;
step four, repeating the step three, and measuring the temperature drift TCR of the material at different temperature points;
fifthly, keeping the probe away from the material; the feeding assembly and the receiving assembly control the material to perform a temperature drift test of the next section of material after the material travels a distance a along the positioning guide assembly until the temperature drift test of the whole roll of material is completed.
In the above technical solution, a is greater than the distance between the first collecting assembly and the second collecting assembly.
The invention has the advantages that the structure is reasonable, the design is novel, the practicability is strong, the continuous temperature drift test of any position of the whole roll of raw materials is realized on the premise of not cutting short and intercepting the roll-shaped raw materials, the temperature drift distribution and difference of the whole roll of raw materials are known, the temperature drift accuracy of the whole roll of raw materials is improved, the poor temperature drift of the product caused by the temperature drift difference of different areas of the whole roll of raw materials is avoided, and the temperature drift performance of the same resistor product is ensured to be consistent; through carrying out the test of drifting in succession to roll-like raw and other materials, improve efficiency of software testing, artifical the installing repeatedly and dismantle the test error that arouses when avoiding the segmentation test, improve the test uniformity, owing to need not intercepting roll-like raw and other materials to carry out the segmentation test, but furthest reduces roll-like raw and other materials test process's loss, reduce cost.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Fig. 2 is a schematic structural diagram of a temperature control mechanism and a resistance value acquisition device.
In the figure: 1. a frame; 21. a discharging component; 22. a material receiving assembly; 20. a roller; 3. positioning a guide assembly; 31. a pinch roller; 32. a bottom wheel; 41. a first collection assembly; 42. a second collection assembly; 43. a resistance tester; 5. a temperature control mechanism; 51. a movable seat; 52. a driving cylinder; 53. a first movable seat; 54. a second movable seat; 55. a hot air gun; 56. a guide rail; 57. a first rack; 58. an idler gear; 59. a second rack; 6. a clamp; 7. a probe; 100. and (3) feeding.
Detailed Description
Embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1-2, a continuous testing device for temperature drift of rolled raw materials comprises a rack 1, a feeding component 21, a receiving component 22, a positioning guide component 3, a temperature control mechanism 5 and a resistance value acquisition device, wherein the rack 1 is provided with a testing station, the temperature control mechanism 5 and the resistance value acquisition device are both arranged on the testing station, the feeding component 21 and the receiving component 22 are arranged on two sides of the testing station, rolled raw materials are placed on the feeding component 21 and are guided by the positioning guide component 3 to convey materials 100 to the testing station under the action of the feeding component 21 and the receiving component 22, the temperature control mechanism 5 performs temperature control of temperature rise and temperature reduction on the materials 100 on the testing station, and the resistance value acquisition device tests the resistance value of the materials 100 on the testing station.
The temperature control mechanism 5 comprises a moving seat 51, a driving cylinder 52, a first movable seat 53, a second movable seat 54, an upper heating assembly and a lower heating assembly, wherein the upper heating assembly is arranged on the second movable seat 54, the lower heating assembly is arranged on the first movable seat 53, and a space for the material 100 to pass through is formed between the upper heating assembly and the lower heating assembly and is used for heating the material 100 in the space; the driving air cylinder 52 is arranged on the movable seat 51, the first movable seat 53 is connected with the driving end of the driving air cylinder 52, and the first movable seat 53 and the second movable seat 54 are provided with transmission components.
The transmission assembly comprises a first rack 57, an inert gear 58 and a second rack 59 which are sequentially connected, the first rack 57 and the second rack 59 are respectively arranged on the first movable seat 53 and the second movable seat 54, the first rack 57 and the second rack 59 are arranged along the vertical direction, the driving cylinder 52 drives the first movable seat 53 to move up and down, the transmission assembly drives the second movable seat 54 and the first movable seat 53 to synchronously move in opposite directions or move in opposite directions, and therefore the upper heating assembly is controlled, and the distance between the lower heating assembly and the material 100 is reduced.
The upper heating assembly and the lower heating assembly each include at least one electrical heating plate.
The rack 1 is provided with a guide rail 56 connected with the moving seat 51 and a driving part, the driving part drives the moving seat 51 to move along the guide rail 56, and the guide rail 56 is arranged along the feeding direction vertical to the material 100; the driving part is a motor or an air cylinder.
The resistance collecting device comprises a resistance tester 43, a first collecting assembly 41 and a second collecting assembly 42, wherein the first collecting assembly 41 and the second collecting assembly 42 are arranged on the front side and the rear side of the temperature control mechanism 5 along the feeding direction of the material 100, the first collecting assembly 41 and the second collecting assembly 42 are formed by two probes 7 symmetrically arranged on the upper side and the lower side of the material 100, the probes 7 are communicated with the resistance tester 43 through wires, and the two probes 7 of the same collecting assembly are movably arranged on the upper side and the lower side of the material 100 through a clamp 6. The two clamps 6 are driven in two ways, the first way is that the two clamps are respectively connected with a finger cylinder, and the finger cylinders are used for independently driving the clamps to clamp the material; in the second type, the jigs are arranged on the first movable base 53 and the second movable base 54 and move synchronously with the first movable base 53 and the second movable base 54; if anchor clamps adopt first drive mode, then electric heating plate and probe remove separately, can control the intensification or the cooling of material through the distance between control electric heating plate and the material this time, it makes electric heating plate be close to material 100 to move in opposite directions with lower movable seat on driving actuating cylinder 52 drive, under the unchangeable condition of electric heating plate power through temperature controller control, electric heating plate is close to material 100 more, material 100 heaies up sooner, thereby realize the intensification control to material 100, make electric heating plate keep away from material 100 when driving actuating cylinder 52 drive upper movable seat and lower movable seat reverse movement, after electric heating plate kept away from material 100 certain distance, the heat that electric heating plate transmitted for material 100 diminishes, material 100 self's heat dissipation in addition, make material 100 cool down. If the clamp adopts a second driving mode, the electric heating plate and the probe move synchronously, the distance between the electric heating plate and the material is kept unchanged, and the electric heating plate controls the temperature rise and the temperature fall of the material 100 by controlling the temperature controller and changing the power of the electric heating plate.
Three groups of positioning and guiding assemblies 3 are arranged on the rack 1 at intervals, one side of the temperature control mechanism 5 close to the discharging assembly 21 is provided with a group of positioning and guiding assemblies 3, each positioning and guiding assembly 3 comprises a pressing wheel 31 and a bottom wheel 32 which are symmetrically arranged on the upper side and the lower side of the material 100, and a guiding deviation correcting part is arranged between each bottom wheel 32 and each pressing wheel 31.
The feeding component 21 and the receiving component 22 both comprise material rolling frames, and the material rolling frames are provided with rolling shafts 20.
The invention also provides a continuous testing method for the temperature drift of the roll-shaped raw material, which comprises the following operation steps through the continuous testing equipment for the temperature drift of the roll-shaped raw material:
firstly, placing and positioning a rolled raw material on a coil rack of a discharging component 21, and drawing a head of the rolled raw material to a coil rack of a receiving component 22;
secondly, collecting the resistance value of the material by adopting a four-wire method, and controlling the material 100 to move along the positioning guide component 3 by a distance a by the discharging component 21 and the receiving component 22; clamp 6 clamps test stationThe material 100 makes the four probes form four resistance value sampling points, the driving cylinder 52 drives the first movable seat 53 and the second movable seat 54 to move in the vertical direction, so that the electric heating plate approaches the material 100 and heats the material 100 to the set T1After the temperature, four resistance sampling points collect the material 100 at T1Resistance at temperature R1；
Step three, heating or cooling the material 100 to T by the electric heating plate2Temperature, four resistance sampling points collect material 100 at T2Resistance at temperature R2By the formula TCR = (R)2-R1)/[R1*(T2-T1)]Calculate the T of the material 100 in the section2Temperature drift of temperature TCR;
step four, repeating the step three, and measuring the temperature drift TCR of the material at different temperature points;
fifthly, the probe 7 is far away from the material 100; the discharging assembly 21 and the receiving assembly 22 control the material 100 to move a distance a along the positioning guide assembly 3, and then the temperature drift test of the next section of material 100 is performed until the temperature drift test of the whole roll of material is completed.
Wherein a is greater than the distance, T, between the first acquisition component 41 and the second acquisition component 421And T2Is set between 1 and 100. E.g. T1At 20 ℃ and T2At 30 ℃ and 20 ℃ as the reference temperature, obtaining the temperature drift TCR of the material at 30 ℃ through the third step, and converting T into T2And (3) selecting 40 ℃ and 20 ℃ as reference temperature, repeating the step three to obtain the temperature drift TCR of the section of material at 40 ℃, and repeating the step three for multiple times to obtain the temperature drift TCR of the section of material at different temperature points of 50 ℃, 60 ℃, 70 ℃, 80 ℃ and the like.
The invention has reasonable structure, novel design and strong practicability, realizes the continuous temperature drift test of any position of the whole roll of raw materials on the premise of not cutting short and intercepting the roll-shaped raw materials, knows the temperature drift distribution and difference of the whole roll of raw materials, improves the temperature drift accuracy of the whole roll of raw materials, and avoids the poor temperature drift of products caused by the temperature drift difference of different areas of the whole roll of raw materials, thereby ensuring the temperature drift performance of the same resistor product to be consistent; through carrying out the test of drifting in succession to roll-like raw and other materials, improve efficiency of software testing, artifical the installing repeatedly and dismantle the test error that arouses when avoiding the segmentation test, improve the test uniformity, owing to need not intercepting roll-like raw and other materials to carry out the segmentation test, but furthest reduces roll-like raw and other materials test process's loss, reduce cost.
The technical scope of the present invention is not limited to the above embodiments, and any modifications, equivalent variations and modifications made to the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.
Claims (10)
1. The utility model provides a roll-like raw and other materials temperature floats continuous test equipment, its characterized in that, includes frame, blowing subassembly, receipts material subassembly, location direction subassembly, temperature control mechanism and resistance collection system, the frame sets up the test station, temperature control mechanism and resistance collection system all set up on the test station, blowing subassembly and receipts material subassembly set up in test station both sides, and roll-like raw and other materials are placed on the blowing subassembly and are transported the material to the test station through the guide of location direction subassembly under blowing subassembly and receipts material subassembly effect, temperature control mechanism heats up and the temperature control of cooling to the material on the test station, resistance collection system tests the resistance to the material on the test station.
2. The continuous temperature drift testing equipment for the rolled raw material as claimed in claim 1, wherein the temperature control mechanism comprises a moving seat, a driving cylinder, a first movable seat, a second movable seat, an upper heating assembly and a lower heating assembly, the upper heating assembly is arranged on the second movable seat, the lower heating assembly is arranged on the first movable seat, and a space for the material to pass through is formed between the upper heating assembly and the lower heating assembly and is used for heating the material in the space; the driving cylinder is arranged on the moving seat, the first movable seat is connected with the driving end of the driving cylinder, and the first movable seat and the second movable seat are provided with a transmission assembly.
3. The continuous temperature drift testing equipment for the coiled raw material as claimed in claim 2, wherein the transmission assembly comprises a first rack, an inert gear and a second rack which are connected in sequence, the first rack and the second rack are respectively arranged on a first movable seat and a second movable seat, the first rack and the second rack are both arranged along a vertical direction, the driving cylinder drives the first movable seat to move up and down, and the transmission assembly drives the second movable seat and the first movable seat to synchronously move towards or away from each other so as to control the distance between the upper heating assembly, the lower heating assembly and the material.
4. The apparatus of claim 3, wherein the upper and lower heating assemblies each comprise at least one electrical heating plate.
5. The continuous temperature drift testing equipment for the rolled raw materials as claimed in claim 4, wherein the rack is provided with a guide rail connected with the movable base and a driving member, the driving member drives the movable base to move along the guide rail, and the guide rail is arranged along a direction perpendicular to the feeding direction of the materials; the driving piece is a motor or an air cylinder.
6. The continuous temperature drift testing equipment for the rolled raw material as claimed in claim 5, wherein the resistance value collecting device comprises a resistance tester, a first collecting component and a second collecting component, the first collecting component and the second collecting component are arranged on the front side and the rear side of the temperature control mechanism along the material feeding direction, the first collecting component and the second collecting component are respectively composed of two probes symmetrically arranged on the upper side and the lower side of the material, the probes are communicated with the resistance tester through conducting wires, and the two probes of the same collecting component are movably arranged on the upper side and the lower side of the material through a clamp.
7. The continuous temperature drift testing equipment for the rolled raw materials as claimed in claim 6, wherein three sets of positioning and guiding assemblies are arranged on the frame at intervals, one side of the temperature control mechanism close to the discharging assembly is provided with one set of positioning and guiding assemblies, the positioning and guiding assemblies comprise pressing wheels and bottom wheels which are symmetrically arranged at the upper side and the lower side of the materials, and guiding deviation rectifying parts are arranged between the bottom wheels and the pressing wheels.
8. The continuous temperature drift testing equipment for the rolled raw materials as claimed in claim 7, wherein the feeding assembly and the receiving assembly each comprise a winding frame, and the winding frame is provided with a roller.
9. A method for continuously measuring the temperature drift of a rolled raw material, characterized in that the following steps are performed by the continuous measuring equipment for the temperature drift of the rolled raw material as claimed in claims 1-8:
placing and positioning a rolled raw material on a material rolling frame of a material discharging assembly, and drawing a material head of the rolled raw material onto the material rolling frame of a material receiving assembly;
collecting the resistance value of the material by adopting a four-wire method, and controlling the material to move along the positioning guide assembly by the discharging assembly and the receiving assembly by a distance a; the material on the clamp clamping test station enables four probes to form four resistance value sampling points, the driving cylinder drives the first movable seat and the second movable seat to move in the vertical direction in opposite directions, the electric heating plate is enabled to be close to the material and heat the material to a set T value1After the temperature, four resistance sampling points collect the material T1Resistance at temperature R1；
Step three, the electric heating plate heats or cools the material to T through the temperature controller2Acquiring material T at four resistance sampling points2Resistance at temperature R2By the formula TCR = (R)2-R1)/[R1*(T2-T1)]Calculate the section of material T2Temperature drift of temperature TCR;
step four, repeating the step three, and measuring the temperature drift TCR of the material at different temperature points;
fifthly, keeping the probe away from the material; the feeding assembly and the receiving assembly control the material to perform a temperature drift test of the next section of material after the material travels a distance a along the positioning guide assembly until the temperature drift test of the whole roll of material is completed.
10. The continuous temperature drift test method of claim 9, wherein a is greater than the distance between the first collection assembly and the second collection assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010262212.2A CN111272829A (en) | 2020-04-06 | 2020-04-06 | Continuous testing equipment and method for temperature drift of rolled raw material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010262212.2A CN111272829A (en) | 2020-04-06 | 2020-04-06 | Continuous testing equipment and method for temperature drift of rolled raw material |
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| CN111272829A true CN111272829A (en) | 2020-06-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117148031A (en) * | 2023-11-01 | 2023-12-01 | 深圳市业展电子有限公司 | Automatic measuring equipment for temperature coefficient of resistance of precision alloy |
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