CN110749747A - Mesh belt speed detection device of heat treatment mesh belt furnace - Google Patents
Mesh belt speed detection device of heat treatment mesh belt furnace Download PDFInfo
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- CN110749747A CN110749747A CN201911116911.XA CN201911116911A CN110749747A CN 110749747 A CN110749747 A CN 110749747A CN 201911116911 A CN201911116911 A CN 201911116911A CN 110749747 A CN110749747 A CN 110749747A
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- mesh belt
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- control system
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- 238000001514 detection method Methods 0.000 title claims abstract description 85
- 238000010438 heat treatment Methods 0.000 title claims abstract description 19
- 238000004891 communication Methods 0.000 claims abstract description 3
- 238000012797 qualification Methods 0.000 abstract description 5
- 230000002159 abnormal effect Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/36—Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
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- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Tunnel Furnaces (AREA)
- Control Of Conveyors (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a mesh belt speed detection device of a mesh belt furnace for heat treatment, which comprises a PLC control system; a frequency converter for adjusting frequency, a driving motor; the driving motor drives the main driving wheel through a belt, and the main driving wheel drives the driven wheel to rotate through the net belt; the detection device further comprises a photoelectric detection device for detecting the running speed of the mesh belt, the photoelectric detection device comprises a detection disc and a detection switch corresponding to the detection disc, the detection disc is driven by the driven wheel through a belt to rotate, and the detection switch is in communication connection with the PLC control system. The invention has reasonable design and simple structure, can accurately detect the running speed of the mesh belt, improves the heat treatment quality and the qualification rate of products, can send out warning in time when the running speed of the mesh belt is abnormal, reminds operators to find out the running fault of the mesh belt, and can greatly improve the stability of the mesh belt furnace.
Description
Technical Field
The invention relates to the technical field of heat treatment, in particular to a mesh belt speed detection device of a heat treatment mesh belt furnace.
Background
On a heat treatment device, the running speed of a mesh belt is an important factor related to the product quality, the running speeds of different products to the mesh belt are different, and further the actual running speed of the mesh belt must be accurately detected.
The detection device of the mesh belt furnace mesh belt in the prior art is shown in figure 1 and comprises a PLC control system 1, a frequency converter 2, a driving motor 3, a main driving wheel 4, a mesh belt 5 and a driven wheel 6, wherein the PLC control system 1 sets the speed to be controlled, the frequency converter 2 adjusts the frequency to control the driving motor 3 to rotate, the driving motor 3 drives the mesh belt 5 to run through the main driving wheel 4, the running speed of the mesh belt 5 is determined through the working frequency of the frequency converter, the frequency converter 2 controls the driving motor 3 to be not linear in each frequency section, the mesh belt 5 slips on the main driving wheel 4 and other factors cause inaccurate detection of the mesh belt running speed, and the qualified rate of products is influenced.
However, aiming at the defects of the prior art, a research and development person needs to develop a heat treatment mesh belt furnace mesh belt speed detection device which has the advantages of reasonable design, simple structure and capability of accurately detecting the running speed of a mesh belt, improving the heat treatment quality and the qualification rate of products, and warning an operator to find out the running fault of the mesh belt when the running speed of the mesh belt is abnormal, thereby greatly improving the stability of the mesh belt furnace and prolonging the service life of the mesh belt furnace.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to provide the mesh belt speed detection device for the heat treatment mesh belt furnace, which has the advantages of reasonable design, simple structure, capability of accurately detecting the running speed of a mesh belt, improvement of the heat treatment quality and the qualification rate of products, capability of giving a warning in time when the running speed of the mesh belt is abnormal, reminding an operator of searching for the running fault of the mesh belt, capability of greatly improving the stability of the mesh belt furnace and long service life.
In order to solve the technical problems, the invention adopts the following technical scheme:
the mesh belt speed detection device of the mesh belt furnace for heat treatment comprises
A PLC control system;
the signal input end of the frequency converter is communicated with the signal output end of the PLC control system;
the signal input end of the driving motor is connected with the signal output end of the frequency converter;
the driving motor drives the main driving wheel through a belt, and the main driving wheel drives the driven wheel to rotate through the net belt;
the detection device further comprises a photoelectric detection device for detecting the running speed of the mesh belt, the photoelectric detection device comprises a detection disc and a detection switch corresponding to the detection disc, the detection disc is driven by the driven wheel through a belt to rotate, and the detection switch is in communication connection with the PLC control system.
In a preferred embodiment of the invention, an alarm device is arranged on one side of the PLC control system, and a signal input end of the alarm device is connected with a signal output end of the PLC control system.
In a preferred embodiment of the present invention, the test plate is a test plate with straight teeth.
In a preferred embodiment of the invention, the detection switch is a correlation detection switch.
Compared with the prior art, the mesh belt furnace is provided with the photoelectric detection device, the photoelectric detection device comprises the detection disc and the detection switch, the detection disc is connected with the driven wheel through the belt, the signal output end of the detection switch is connected with the signal input end of the PLC control system, when the mesh belt furnace works, the driven wheel drives the detection disc to rotate through the belt, the correlation detection switch transmits the rotating frequency of the detection disc to the PLC control system, the PLC control system can accurately calculate the actual running speed of the mesh belt according to the action frequency of the detection disc, and the heat treatment quality and the qualification rate of products are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of a prior art structure.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a schematic structural diagram of a photodetecting device according to the present invention.
The corresponding part names indicated by the numbers and letters in the drawings:
100, a PLC control system, 200, a frequency converter, 300, a driving motor, 400, a belt, 500, a main driving wheel, 600, a mesh belt, 700, a driven wheel, 800, a belt, 900, a detection disc, 1000, a detection switch and 1100, and an alarm device.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
Referring to fig. 2 and 3, the mesh belt speed detection device of the heat treatment mesh belt furnace comprises a PLC control system 100, a frequency converter 200, a driving motor 300, a main driving wheel 500, a driven wheel 700, a mesh belt 600, and a photoelectric detection device for detecting the running speed of the mesh belt.
The signal output end of the PLC control system 100 is connected to the signal input end of the frequency converter 200, the signal output end of the frequency converter 200 is connected to the signal input end of the driving motor 300, the driving motor 300 drives the main driving wheel 500 through the belt 400, and the main driving wheel 500 drives the driven wheel 700 to rotate through the mesh belt 600.
The photoelectric detection device comprises a detection disc 900 and a detection switch 1000 corresponding to the detection disc 900, the detection disc 900 is a detection disc with straight teeth, the detection switch 1000 is a correlation detection switch, one end of the correlation detection switch is arranged inside the detection disc with the straight teeth, the other end of the correlation detection switch is arranged outside the detection disc with the straight teeth, a driven wheel 700 drives the detection disc 900 to rotate through a belt 800, and the signal output end of the detection switch 1000 is connected with the signal input end of the PLC control system 1000.
When the mesh belt furnace works, firstly, a set speed is input into the PLC control system 100, the PLC control system 100 adjusts the frequency through the frequency converter 200 to control the driving motor 300 to rotate, the driving motor 300 drives the main driving wheel 500 to rotate through the belt 400, the main driving wheel 500 drives the driven wheel 700 to rotate through the mesh belt 600, the driven wheel 700 drives the detection disc 900 to rotate through the belt 800, the detection disc 900 is a detection disc with straight teeth, the detection switch 1000 transmits the action frequency of the detection disc 900 to the PLC control system 100, and the PLC control system 100 can accurately calculate the actual running speed of the mesh belt according to the action frequency of the detection disc 900.
And when the PLC control system 100 calculates that the actual running speed of the mesh belt is different from the speed input into the PLC control system 100 according to the action frequency of the detection disc 900, the PLC control system 100 sends out an alarm signal, so that the alarm device 1100 sends out an alarm, the alarm can be sent out in time, an operator is reminded to find out the running fault of the mesh belt, and the stability of the mesh belt furnace can be greatly improved.
In conclusion, the mesh belt furnace is provided with the photoelectric detection device, the photoelectric detection device comprises a detection disc and a detection switch, the detection disc is connected with the driven wheel through a belt, the signal output end of the detection switch is connected with the signal input end of the PLC control system, when the mesh belt furnace works, the driven wheel drives the detection disc to rotate through the belt, the correlation detection switch transmits the rotation frequency of the detection disc to the PLC control system, and the PLC control system can accurately calculate the actual running speed of the mesh belt according to the action frequency of the detection disc, so that the heat treatment quality and the qualification rate of products are improved.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. The mesh belt speed detection device of the mesh belt furnace for heat treatment comprises
A PLC control system;
the signal input end of the frequency converter is communicated with the signal output end of the PLC control system;
the signal input end of the driving motor is connected with the signal output end of the frequency converter;
the driving motor drives the main driving wheel through a belt, and the main driving wheel drives the driven wheel to rotate through the net belt;
the detection device is characterized by further comprising a photoelectric detection device for detecting the running speed of the mesh belt, wherein the photoelectric detection device comprises a detection disc and a detection switch corresponding to the detection disc, the driven wheel drives the detection disc to rotate through a belt, and the detection switch is in communication connection with the PLC control system.
2. The mesh belt speed detecting device of a heat treatment mesh belt furnace according to claim 1, characterized in that: and an alarm device is arranged on one side of the PLC control system, and the signal input end of the alarm device is connected with the signal output end of the PLC control system.
3. The mesh belt speed detecting device of a heat treatment mesh belt furnace according to claim 1, characterized in that: the detection disc is a detection disc with straight teeth.
4. The mesh belt speed detecting device of a heat treatment mesh belt furnace according to claim 1, characterized in that: the detection switch is a correlation detection switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911116911.XA CN110749747A (en) | 2019-11-15 | 2019-11-15 | Mesh belt speed detection device of heat treatment mesh belt furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911116911.XA CN110749747A (en) | 2019-11-15 | 2019-11-15 | Mesh belt speed detection device of heat treatment mesh belt furnace |
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| Publication Number | Publication Date |
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| CN110749747A true CN110749747A (en) | 2020-02-04 |
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| CN201911116911.XA Pending CN110749747A (en) | 2019-11-15 | 2019-11-15 | Mesh belt speed detection device of heat treatment mesh belt furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113584299A (en) * | 2021-05-17 | 2021-11-02 | 舟山市7412工厂 | Automatic control device for temperature of heat treatment mesh belt furnace |
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2019
- 2019-11-15 CN CN201911116911.XA patent/CN110749747A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113584299A (en) * | 2021-05-17 | 2021-11-02 | 舟山市7412工厂 | Automatic control device for temperature of heat treatment mesh belt furnace |
| CN113584299B (en) * | 2021-05-17 | 2023-09-12 | 舟山市7412工厂 | Automatic control device for temperature of heat treatment mesh belt furnace |
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Application publication date: 20200204 |