CN108345328B - Temperature control system and method for electromagnetic heating roller - Google Patents
Temperature control system and method for electromagnetic heating roller Download PDFInfo
- Publication number
- CN108345328B CN108345328B CN201710058748.0A CN201710058748A CN108345328B CN 108345328 B CN108345328 B CN 108345328B CN 201710058748 A CN201710058748 A CN 201710058748A CN 108345328 B CN108345328 B CN 108345328B
- Authority
- CN
- China
- Prior art keywords
- heating
- temperature
- roller
- unit
- heating area
- 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.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/30—Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Fixing For Electrophotography (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
The invention provides an electromagnetic heating roller temperature control system and a method thereof, wherein the system comprises: the heating units are arranged in the roller body, the roller surface of the roller body is divided into a plurality of heating areas, and each heating unit correspondingly heats one heating area of the roller surface of the roller body; the temperature measuring unit rotates along with the roller surface of the roller body and sequentially passes through all the heating areas, and the temperature measuring unit detects the temperature data of all the heating areas of the roller surface of the roller body in real time; the roller body movement monitoring unit detects the rotation state of the roller body and judges which heating area the temperature measuring unit is in real time; and the control unit is respectively connected with the heating unit, the temperature measuring unit and the roller body movement monitoring unit, and adjusts the working state of the heating unit corresponding to the heating area according to the comparison between the roller surface temperature detection of the heating area by the temperature measuring unit and the preset heating temperature of the heating area. The invention ensures the temperature stability of the large roller body in the low-speed production process and improves the production efficiency and the product percent of pass.
Description
Technical Field
The invention relates to the field of electromagnetic heating rollers, in particular to a temperature control system and a temperature control method of an electromagnetic heating roller.
Background
The electromagnetic heating roller is widely applied to the processing and production of various high polymer materials. Its good temperature characteristics are recognized by manufacturers in various industries. And some industries are not.
The electromagnetic heating roller is composed of an inner shaft and a roller shell. Typically one or more sets of coils are provided on the inner shaft for generating the electromagnetic field. The coil conducting wire direction can be longitudinally arranged or transversely arranged. The temperature measurement of the existing electromagnetic heating roller is mostly that one or two small holes with different depths are transversely arranged in the roller wall of the roller body. And a temperature sampling probe is embedded in the small hole and used as a sampling point for controlling the temperature of the roller body. Usually, the adjacent distance between two temperature measuring holes is about 100 mm. The depth of each temperature measuring hole is set according to different processing materials. Generally, the longer branch of the sampling temperature is used as the temperature control, which is called as a temperature control probe, and the shorter branch of the sampling temperature data is compared with the temperature control probe data. So as to correct the control and is called a temperature reference probe.
In such a temperature control manner, the production requirements of most materials can be generally met. Such as dacron guide wire, high-speed compounding, etc. However, for some products processed by using a larger roller body, long-time hot-working forming is needed to meet the performance requirements of the produced products. For example, in the fields of drying, anti-counterfeiting compression molding, rubber vulcanization and the like of some high-temperature filter materials, the diameter of the roller body is mostly between 1000mm and 4000 mm. The production speed of the product is usually 0.4 m/min to 10 m/min. Typically, to maximize the use of heat during the production process, the material will form a wrap angle in the range of 120 ° to 240 ° at the roll surface.
According to the production process, the temperature sampling probe of the existing electromagnetic heating roller is used for setting. There are the following problems: the circumference of the roller body is large, under a low-speed production state, the temperature of the roller surface is unbalanced due to heat load (production materials taking away heat), the probe cannot truly feed back the working temperature of the current load area in a no-load area, and the fluctuation of the temperature of the load area is large due to a control hysteresis effect. The temperature of the product processing technology is not stable in a controllable range.
FIG. 1 is a cross-sectional view of a prior art first state of electromagnetically heated roller control. As shown in fig. 1, the rolled material 10 is tensioned on the roll surface of the roll body 20, and the rolled material 10 is driven to pass between the self-roll body 20 and the counter-calender roll 30 as the roll body 20 and the counter-calender roll 30 roll relatively. The roller body 20 is provided with a temperature control probe 40 and a temperature reference probe 50. a. b, c, d are four position reference identification points of the roll surface of the roll body 20. The temperature control probe 40 and the temperature reference probe 50 are both located between points a and b.
FIG. 2 is a graph showing the relationship between the temperature control probe data and the roll operating time from the first state of electromagnetic heating control in the prior art. In fig. 2, the X-axis represents the roller running time, the Y-axis represents the temperature control probe data, and ad represents the roller surface from point a to point d; dc represents the roll surface from the point d to the point c; cb represents the roll surface from point c to point b; ba represents the roll surface from point b to point a; SV represents a preset process temperature; PV represents the real-time sampled temperature. As shown in FIG. 2, during production, temperature control probe 40 and temperature reference probe 50 are in position ba (empty or cb material heating zone), and the temperature of each position reference zone is shown in FIG. 2.
FIG. 3 is a cross-sectional view of a second state of the prior art electromagnetic heating roller control. As shown in fig. 3, the rolled material 10 is tensioned on the roll surface of the roll body 20, and the rolled material 10 is driven to pass between the self-roll body 20 and the counter-calender roll 30 as the roll body 20 and the counter-calender roll 30 roll relatively. The roller body 20 is provided with a temperature control probe 40 and a temperature reference probe 50. a. b, c, d are four position reference identification points of the roll surface of the roll body 20. The temperature control probe 40 and the temperature reference probe 50 are both located between the point d and the point a.
FIG. 4 is a graph showing the relationship between the temperature-control probe data and the roll operating time from the second state of electromagnetic heating control in the prior art. In fig. 4, the X-axis represents the roller running time, the Y-axis represents the temperature control probe data, and ad represents the roller surface from point a to point d; dc represents the roll surface from the point d to the point c; cb represents the roll surface from point c to point b; ba represents the roll surface from point b to point a; SV represents a preset process temperature; PV represents the real-time sampled temperature. As shown in FIG. 2, during production, the temperature control probe 40 and the temperature reference probe 50 are in position ad (deadspace, or dc deadspace) and the temperature of each position reference zone is shown in FIG. 4.
As can be seen from a comparison of fig. 1 to 4, the material heating hot zone is the cb and ba region, i.e., the temperature in the region where the production material passes must be within the process temperature range of the material to produce a quality product. The material needs a larger diameter, usually more than 1 meter, and a slower production speed when being produced by the process. Temperature measurement feedback in the load zone is particularly important. If the current temperature measuring probe is in the no-load area, namely the ad area and the dc area, the side temperature sampling data is not consistent with the load area, the no-load heat is mainly taken away by air, and the load area is taken away by heat, except for air, materials and moisture contained in the materials. The two regions may exhibit load asymmetry. This results in poor consistency of product quality. Affecting the quality of the product.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide an electromagnetic heating roller temperature control system and a method thereof, which ensure the temperature stability in the low-speed production process of a large roller body and improve the production efficiency and the product percent of pass.
The embodiment of the invention provides an electromagnetic heating roller temperature control system, which comprises: the heating units are arranged in the roller body, the roller surface of the roller body is divided into a plurality of heating areas, and each heating unit correspondingly heats one heating area of the roller surface of the roller body; the temperature measuring unit sequentially passes through all the heating areas along with the rotation of the roller surface of the roller body, and detects the temperature data of the roller surface of the roller body in each heating area in real time; the roller body motion monitoring unit detects the rotation state of the roller body and judges which heating area the temperature measuring unit is positioned in real time; and the control unit is respectively connected with the heating unit, the temperature measuring unit and the roller body movement monitoring unit, and adjusts the working state of the heating unit corresponding to the heating area according to the comparison between the roller surface temperature detection of the heating area by the temperature measuring unit and the preset heating temperature of the heating area.
Preferably, the heating units are uniformly distributed in the roller body, the distances between the adjacent heating units are equal, and the areas of heating areas of the heating units corresponding to the roller surface of the roller body are equal.
Preferably, the roller surface of the roller body is circumferentially divided into a first heating area, a second heating area, a third heating area and a fourth heating area;
the roller comprises a roller body and is characterized in that a first heating unit, a second heating unit, a third heating unit and a fourth heating unit are arranged in the roller body, and each heating unit independently heats a heating area of the roller surface of the roller body.
Preferably, a plurality of reference marks are uniformly arranged on the roller surface of the roller body in the circumferential direction, the roller motion monitoring unit points to the roller surface of the roller body, and the roller motion monitoring unit judges which heating area the temperature measuring unit is located in through optical detection, angle detection or position detection to record the number of the passing reference marks.
Preferably, the control unit prestores preset heating temperature of each heating area;
when the temperature measuring unit detects that the roll surface temperature of the heating area is higher than the preset heating temperature of the heating area, the control unit closes the heating unit corresponding to the heating area;
and when the temperature measuring unit detects that the roll surface temperature of the heating area is less than or equal to the preset heating temperature of the heating area, the control unit starts the heating unit corresponding to the heating area.
Preferably, the roller surface of the roller body comprises a load side which is contacted with the rolled material and an idle side which is not contacted with the rolled material, and an access end which is accessed into the rolled material and a leaving end which is separated from the roller surface are formed between the load side and the idle side;
on the load side, as the heating area approaches to the access end, the preset heating temperature of the heating area is increased;
on the load side, the heating temperature of the heating area is reduced as the heating area approaches the leaving end.
Preferably, the heating unit is a flat coil.
The embodiment of the invention also provides a temperature control method of the electromagnetic heating roller, which adopts the temperature control system of the electromagnetic heating roller and comprises the following steps:
s100, pre-storing a preset heating temperature of each heating area in the control unit;
s200, the temperature measuring unit rotates along with the roller surface of the roller body and sequentially passes through the heating areas, and the temperature measuring unit detects the temperature data of the roller surface of the roller body in each heating area in real time;
s300, detecting the rotation of the roller body by the roller body motion monitoring unit, judging which heating area the temperature measuring unit is positioned in real time, sequentially passing through all the heating areas along with the rotation of the roller body, and detecting the roller surface temperature of the heating areas by the temperature measuring unit;
s400, judging whether the temperature of the roll surface of the heating area detected by the temperature measuring unit is greater than the preset heating temperature of the heating area, if so, executing the step S500; if not, executing step S600;
s500, the control unit closes the heating unit corresponding to the heating area and returns to the step S300; and
s600, the control unit starts the heating unit corresponding to the heating area and returns to the step S300.
Preferably, a plurality of reference marks are uniformly arranged on the roller surface of the roller body in the circumferential direction, the roller motion monitoring unit points to the roller surface of the roller body, and the roller motion monitoring unit judges which heating area the temperature measuring unit is located in through optical detection, angle detection or position detection to record the number of the passing reference marks.
Preferably, the roller surface of the roller body is circumferentially divided into four heating regions, a first heating unit, a second heating unit, a third heating unit and a fourth heating unit are arranged in the roller body, and each heating unit independently heats one heating region of the roller surface of the roller body.
The temperature control system and the method of the electromagnetic heating roller ensure the temperature stability in the low-speed production process of the large roller body, and improve the production efficiency and the product percent of pass.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, with reference to the accompanying drawings.
FIG. 1 is a cross-sectional view of a prior art first state of electromagnetically heated roller control.
FIG. 2 is a graph showing the relationship between the temperature control probe data and the roller operating time from the first state of electromagnetic heating control in the prior art;
FIG. 3 is a cross-sectional view of a second state of the prior art electromagnetic heating roller control.
FIG. 4 is a diagram showing the relationship between the temperature control probe data and the roller operating time from the second state of electromagnetic heating for controlling the roller in the prior art;
FIG. 5 is a schematic cross-sectional view of an electromagnetic heating roller temperature control system of the present invention;
FIG. 6 is a schematic diagram of the module connection of the temperature control system for electromagnetic heating roller of the present invention;
FIG. 7 is a flow chart of the temperature control method of the electromagnetic heating roller of the present invention;
FIG. 8 is a schematic cross-sectional view of a temperature measuring unit located in a first heating area when the temperature control system of the electromagnetic heating roller of the present invention is in a rotating state;
FIG. 9 is a schematic cross-sectional view of the temperature measuring unit located in the second heating area when the temperature controlling system of the electromagnetic heating roller of the present invention is in a rotating state;
FIG. 10 is a schematic cross-sectional view of the temperature measuring unit located in the third heating area when the temperature controlling system of the electromagnetic heating roller of the present invention is in a rotating state; and
FIG. 11 is a schematic cross-sectional view of the temperature measuring unit located in the fourth heating area when the temperature control system of the electromagnetic heating roller of the present invention is in a rotating state.
Reference numerals
10 roll compacted material
20 roller body
30 pairs of rubber pressing rollers
40 temperature control probe
50 temperature reference probe
a. b, c, d position reference mark point
Roll surface between ada point and d point
Surface of the roll between dc d point and c point
c point to b point of the roller surface
Roller surface between point ba b and point a
SV Preset Process temperature
PV real-time sampling temperature
1 roll Material
2 roller body
3 pairs of rubber pressing rollers
4 temperature measuring unit
8 first heating unit
9 second heating unit
10 third heating unit
11 fourth heating unit
12 roller movement monitoring unit
13 control unit
A first heating zone
B second heating zone
C third heating zone
D fourth heating zone
E access terminal
F leaving terminal
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their repetitive description will be omitted.
FIG. 5 is a schematic cross-sectional view of an electromagnetic heating roller temperature control system of the present invention. FIG. 6 is a schematic diagram of the module connection of the temperature control system of the electromagnetic heating roller of the present invention. As shown in fig. 5 and 6, the temperature control system of the electromagnetic heating roller of the present invention includes: a plurality of heating units, a temperature measuring unit 4, a roller motion monitoring unit 12 and a control unit 13. A plurality of heating unit set up in roll body 2, and the heating unit is fixed inside roll body 2, can not follow the roll surface and rotate and remove. The roll surface of the roll body 2 is divided into a plurality of heating areas, and each heating unit corresponds to one heating area for heating the roll surface of the roll body 2. The temperature measuring unit 4 rotates along with the roll surface of the roll body 2 and sequentially passes through all the heating areas, and the temperature measuring unit 4 detects roll surface temperature data of each heating area of the roll surface of the roll body 2 in real time. The roller motion monitoring unit 12 detects the rotation state of the roller 2 and judges in real time which heating area the temperature measuring unit 4 is located. The control unit 13 is respectively connected with the heating unit, the temperature measuring unit 4 and the roller body movement monitoring unit 12, and adjusts the working state of the heating unit corresponding to the heating area according to the comparison between the roller surface temperature detection of the heating area by the temperature measuring unit 4 and the preset heating temperature of the heating area.
The heating units are uniformly distributed in the roller body 2, the distance between the adjacent heating units is equal, and the areas of heating areas of the heating units corresponding to the roller surface of the heating roller body 2 are equal. The roll surface of the roll body 2 is divided into a first heating area a, a second heating area B, a third heating area C, and a fourth heating area D along the circumferential direction, but not limited thereto. In other modifications, the roll surface of the roll body 2 may be divided into more or fewer heating zones in the circumferential direction. The more heating zones are divided, the more precisely the temperature of each local portion of the roll surface of the roll body 2 can be measured. A first heating unit 8, a second heating unit 9, a third heating unit 10 and a fourth heating unit 11 are arranged in the roller body 2, and each heating unit independently heats a heating area of the roller surface of the roller body 2. The first heating unit 8 heats the first heating area a of the roll surface of the roll body 2. The second heating unit 9 heats the second heating area B of the roll surface of the roll body 2. The third heating unit 10 heats the third heating area C of the roll surface of the roll body 2. The fourth heating unit 11 heats the fourth heating area D of the roll surface of the roll body 2. Therefore, when the temperature measuring unit 4 rotates along with the roll surface of the roll body 2 and sequentially passes through the first heating area a, the temperature measuring unit 4 is used for detecting the temperature of the roll surface of the roll body 2 entering the first heating area a. When the temperature measuring unit 4 rotates along with the roll surface of the roll body 2 and sequentially passes through the second heating area B, the temperature measuring unit 4 is used for detecting the temperature of the roll surface of the roll body 2 entering the second heating area B. When the temperature measuring unit 4 rotates along with the roll surface of the roll body 2 and sequentially passes through the third heating area C, the temperature measuring unit 4 is used for detecting the temperature of the roll surface of the roll body 2 entering the third heating area C. When the temperature measuring unit 4 rotates along with the roll surface of the roll body 2 and sequentially passes through the fourth heating area D, the temperature measuring unit 4 is used for detecting the temperature of the roll surface of the roll body 2 entering the fourth heating area D. In the present invention, the first heating unit 8, the second heating unit 9, the third heating unit 10, and the fourth heating unit 11 are all flat coils, but not limited thereto.
The roll surface of the roll body 2 is uniformly provided with a plurality of reference marks along the circumferential direction, the roll motion monitoring unit 12 points to the roll surface of the roll body 2, and the roll motion monitoring unit 12 records the number of the passing reference marks through optical detection, angle detection, position detection (not limited to the above) and other methods to determine in which heating area the temperature measuring unit 4 is located. For example, four reference marks are uniformly provided on the roll surface of the roll body 2 in the circumferential direction, and when the roll surface of the roll body 2 rolls, the reference marks pass through the roll movement monitoring unit 12 at a time, and when every four reference marks pass through the roll movement monitoring unit 12, it is determined that the roll body 2 has rotated by one revolution. And only two reference marks pass through the roller movement monitoring unit 12, it is assumed that the roller body 2 has rotated by 90 °, and so on, the rotation angle and the operation state of the roller body can be monitored.
In this embodiment, the control unit 13 prestores a preset heating temperature for each heating region. When the temperature measuring unit 4 detects that the roll surface temperature of the heating area is higher than the preset heating temperature of the heating area, the control unit 13 closes the heating unit corresponding to the heating area. When the temperature measuring unit 4 detects that the roll surface temperature of the heating area is less than or equal to the preset heating temperature of the heating area, the control unit 13 starts the heating unit corresponding to the heating area. Therefore, the temperature of the roller surface of the roller body 2 is automatically adjusted to meet the optimal process temperature requirement.
In a preferred embodiment, the roll surface of the roll body 2 comprises a load side contacting the rolled material 1 and an idle side not contacting the rolled material 1, between which an incoming end E into the rolled material 1 and an outgoing end F from the roll surface of the rolled material 1 are formed. On the load side, the heating zone is preset to increase in heating temperature as it approaches the access E. On the load side, the heating zone is preset to a reduced heating temperature as it approaches the exit end F. For example, when the process temperature of the first heating zone a closest to the incoming end E is set to 200 degrees celsius and the process temperature of the third heating zone C closest to the outgoing end F is set to 190 degrees celsius, the process temperature of the second heating zone B on the load side therebetween is set to 195 degrees celsius. And the process temperature of the fourth heating zone D at the idle side is set to 185 to 190 degrees celsius since it does not contact the rolled material 1.
FIG. 7 is a flow chart of the temperature control method of the electromagnetic heating roller of the present invention. As shown in fig. 7, the temperature control method of the electromagnetic heating roller according to the present invention, which uses the temperature control system of the electromagnetic heating roller, includes the following steps:
s100, firstly, the roller body is calibrated and reset, and then the preset heating temperature of each heating area is prestored in the control unit 13.
S200, the temperature measuring unit 4 sequentially passes through the heating areas along with the rotation of the roll surface of the roll body 2, and the temperature measuring unit 4 detects roll surface temperature data of the heating areas of the roll surface of the roll body 2 in real time.
S300, the roller body movement monitoring unit 12 detects rotation of the roller body 2, and judges which heating area the temperature measuring unit 4 is located in real time, the temperature measuring unit 4 sequentially passes through all the heating areas along with rotation of the roller body 2, and the temperature measuring unit 4 detects the roller surface temperature of the heating areas.
S400, judging whether the roll surface temperature of the heating area detected by the temperature measuring unit 4 is greater than the preset heating temperature of the heating area, if so, executing the step S500; if not, step S600 is executed.
S500, the control unit 13 turns off the heating unit corresponding to the heating area, and returns to step S300. And
s600, the control unit 13 turns on the heating unit corresponding to the heating area, and returns to step S300.
The roll surface of the roll body 2 is uniformly provided with a plurality of reference marks in the circumferential direction, the roll motion monitoring unit 12 points to the roll surface of the roll body 2, and the roll motion monitoring unit 12 judges which heating area the temperature measuring unit 4 is located in through optical detection, angle detection or position detection to record the number of the passing reference marks. In this embodiment, the roll surface of the roll body 2 is divided into four heating regions along the circumferential direction, a first heating unit 8, a second heating unit 9, a third heating unit 10, and a fourth heating unit 11 are disposed in the roll body 2, and each heating unit independently heats one heating region of the roll surface of the roll body 2.
FIG. 8 is a schematic cross-sectional view of the temperature measuring unit located in the first heating region when the temperature control system of the electromagnetic heating roller of the present invention is in a rotating state. FIG. 9 is a schematic cross-sectional view of the temperature measuring unit located in the second heating region when the temperature control system of the electromagnetic heating roller of the present invention is in a rotating state. FIG. 10 is a schematic cross-sectional view of the temperature measurement unit located in the third heating region when the temperature control system of the electromagnetic heating roller of the present invention is in a rotating state. FIG. 11 is a schematic cross-sectional view of the temperature measuring unit located in the fourth heating area when the temperature control system of the electromagnetic heating roller of the present invention is in a rotating state. As shown in fig. 8 to 11, the embodiment of the present invention is as follows:
the roll surface of the roll body 2 is divided into a first heating area a, a second heating area B, a third heating area C, and a fourth heating area D along the circumferential direction, but not limited thereto. In other modifications, the roll surface of the roll body 2 may be divided into more or fewer heating zones in the circumferential direction. The more heating zones are divided, the more precisely the temperature of each local portion of the roll surface of the roll body 2 can be measured. A first heating unit 8, a second heating unit 9, a third heating unit 10 and a fourth heating unit 11 are arranged in the roller body 2, and each heating unit independently heats a heating area of the roller surface of the roller body 2. The first heating unit 8 heats the first heating area a of the roll surface of the roll body 2. The second heating unit 9 heats the second heating area B of the roll surface of the roll body 2. The third heating unit 10 heats the third heating area C of the roll surface of the roll body 2. The fourth heating unit 11 heats the fourth heating area D of the roll surface of the roll body 2. The roll surface of the roll body 2 is uniformly provided with a plurality of reference marks in the circumferential direction, the roll motion monitoring unit 12 points to the roll surface of the roll body 2, and the roll motion monitoring unit 12 judges which heating area the temperature measuring unit 4 is located in through optical detection, angle detection or position detection to record the number of the passing reference marks.
As shown in fig. 8, when the roll motion monitoring unit 12 detects that the temperature measuring unit 4 sequentially passes through the first heating area a along with the rotation of the roll surface of the roll body 2, the temperature measuring unit 4 detects the temperature of the roll surface of the roll body 2 entering the first heating area a. When the temperature measuring unit 4 detects that the roll surface temperature of the first heating area a is higher than the preset heating temperature of the first heating area a, the control unit 13 closes the first heating unit 8 corresponding to the first heating area a. When the temperature measuring unit 4 detects that the roll surface temperature of the first heating area a is less than or equal to the preset heating temperature of the first heating area a, the control unit 13 starts the first heating unit 8 corresponding to the first heating area a. Therefore, the temperature of the first heating area A of the roller surface of the roller body 2 is automatically adjusted to meet the optimal process temperature requirement.
As shown in fig. 9, when the roll motion monitoring unit 12 detects that the temperature measuring unit 4 sequentially passes through the second heating area B along with the rotation of the roll surface of the roll body 2, the temperature measuring unit 4 detects the temperature of the roll surface of the roll body 2 entering the second heating area B. When the temperature measuring unit 4 detects that the roll surface temperature of the second heating area B is higher than the preset heating temperature of the second heating area B, the control unit 13 closes the second heating unit 9 corresponding to the second heating area B. When the temperature measuring unit 4 detects that the roll surface temperature of the second heating area B is less than or equal to the preset heating temperature of the second heating area B, the control unit 13 starts the second heating unit 9 corresponding to the second heating area B. Therefore, the temperature of the second heating area B of the roller surface of the roller body 2 is automatically adjusted to meet the optimal process temperature requirement.
As shown in fig. 10, when the roll motion monitoring unit 12 detects that the temperature measuring unit 4 sequentially passes through the third heating area C along with the rotation of the roll surface of the roll body 2, the temperature measuring unit 4 detects the temperature of the roll surface of the roll body 2 entering the third heating area C. When the temperature measuring unit 4 detects that the roll surface temperature of the third heating area C is higher than the preset heating temperature of the third heating area C, the control unit 13 closes the third heating unit 10 corresponding to the third heating area C. When the temperature measuring unit 4 detects that the roll surface temperature of the third heating area C is less than or equal to the preset heating temperature of the third heating area C, the control unit 13 starts the third heating unit 10 corresponding to the third heating area C. Therefore, the temperature of the third heating area C of the roller surface of the roller body 2 is automatically adjusted to meet the optimal process temperature requirement.
As shown in fig. 11, when the roll motion monitoring unit 12 detects that the temperature measuring unit 4 sequentially passes through the fourth heating area D along with the rotation of the roll surface of the roll body 2, the temperature measuring unit 4 detects the temperature of the roll surface of the roll body 2 entering the fourth heating area D. When the temperature measuring unit 4 detects that the roll surface temperature of the fourth heating area D is greater than the preset heating temperature of the fourth heating area D, the control unit 13 closes the fourth heating unit 11 corresponding to the fourth heating area D. When the temperature measuring unit 4 detects that the roll surface temperature of the fourth heating area D is less than or equal to the preset heating temperature of the fourth heating area D, the control unit 13 starts the fourth heating unit 11 corresponding to the fourth heating area D. Therefore, the temperature of the fourth heating area D of the roller surface of the roller body 2 is automatically adjusted to meet the optimal process temperature requirement.
The temperature control system and the method of the electromagnetic heating roller can sequentially measure a plurality of heating areas only by one temperature measuring unit rotating along with the roller surface, and adjust the heating unit of each heating area so as to achieve the optimal working temperature of the roller surface.
In conclusion, the temperature control system and the method for the electromagnetic heating roller ensure the temperature stability in the low-speed production process of the large roller body, and improve the production efficiency and the product percent of pass.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (10)
1. The utility model provides an electromagnetic heating roller temperature control system which characterized in that includes:
the heating unit is arranged in the roller body, the roller surface of the roller body is divided into a plurality of heating areas, and each heating unit correspondingly heats one heating area of the roller surface of the roller body;
the temperature measuring unit sequentially passes through all the heating areas along with the rotation of the roll surface of the roll body, and detects the temperature data of each heating area of the roll surface of the roll body in real time;
the roller body motion monitoring unit detects the rotation state of the roller body and judges which heating area the temperature measuring unit is positioned in real time; and
and the control unit is respectively connected with the heating unit, the temperature measuring unit and the roller body movement monitoring unit, and adjusts the working state of the heating unit corresponding to the heating area according to the comparison between the roller surface temperature detection of the heating area by the temperature measuring unit and the preset heating temperature of the heating area.
2. The temperature control system for electromagnetic heating roller according to claim 1, characterized in that: the heating units are uniformly distributed in the roller body, the adjacent intervals between the heating units are equal, and the areas of heating areas of the heating units corresponding to the roller surface of the roller body are equal.
3. The temperature control system for electromagnetic heating roller according to claim 2, characterized in that: the roller surface of the roller body is circumferentially divided into a first heating area, a second heating area, a third heating area and a fourth heating area;
the roller comprises a roller body and is characterized in that a first heating unit, a second heating unit, a third heating unit and a fourth heating unit are arranged in the roller body, and each heating unit independently heats a heating area of the roller surface of the roller body.
4. The temperature control system for electromagnetic heating roller according to claim 1, characterized in that: the roller motion monitoring unit is used for recording the number of the passing reference marks through optical detection, angle detection or position detection to judge which heating area the temperature measuring unit is in.
5. The temperature control system for electromagnetic heating roller according to claim 1, characterized in that: the control unit prestores preset heating temperature of each heating area;
when the temperature measuring unit detects that the roll surface temperature of the heating area is higher than the preset heating temperature of the heating area, the control unit closes the heating unit corresponding to the heating area;
and when the temperature measuring unit detects that the roll surface temperature of the heating area is less than or equal to the preset heating temperature of the heating area, the control unit starts the heating unit corresponding to the heating area.
6. The temperature control system for electromagnetic heating roller according to claim 5, characterized in that: the roll surface of the roll body comprises a load side which is in contact with rolled materials and an idle side which is not in contact with the rolled materials, and an access end which is accessed to the rolled materials and a leaving end which is separated from the roll surface are formed between the load side and the idle side;
on the load side, as the heating area approaches to the access end, the preset heating temperature of the heating area is increased;
on the load side, the heating temperature of the heating area is reduced as the heating area approaches the leaving end.
7. The temperature control system for electromagnetic heating roller according to claim 1, characterized in that: the heating unit is a flat coil.
8. A temperature control method of an electromagnetic heating roller is characterized in that the temperature control system of the electromagnetic heating roller according to claim 1 is adopted, and comprises the following steps:
s100, pre-storing a preset heating temperature of each heating area in the control unit;
s200, the temperature measuring unit rotates along with the roll surface of the roll body and sequentially passes through the heating areas, and the temperature measuring unit detects temperature data of each heating area of the roll surface of the roll body in real time;
s300, detecting the rotation of the roller body by the roller body motion monitoring unit, judging which heating area the temperature measuring unit is positioned in real time, sequentially passing through all the heating areas along with the rotation of the roller body, and detecting the roller surface temperature of the heating areas by the temperature measuring unit;
s400, judging whether the temperature of the roll surface of the heating area detected by the temperature measuring unit is greater than the preset heating temperature of the heating area, if so, executing the step S500; if not, executing step S600;
s500, the control unit closes the heating unit corresponding to the heating area and returns to the step S300; and
s600, the control unit starts the heating unit corresponding to the heating area and returns to the step S300.
9. The temperature control method of the electromagnetic heating roller according to claim 8, characterized in that: the roller motion monitoring unit is used for recording the number of the passing reference marks through optical detection, angle detection or position detection to judge which heating area the temperature measuring unit is in.
10. The temperature control method for the electromagnetic heating roller according to claim 8, wherein the roller surface of the roller body is divided into four heating zones in a circumferential direction, a first heating unit, a second heating unit, a third heating unit and a fourth heating unit are provided in the roller body, and each heating unit independently heats one heating zone of the roller surface of the roller body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710058748.0A CN108345328B (en) | 2017-01-23 | 2017-01-23 | Temperature control system and method for electromagnetic heating roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710058748.0A CN108345328B (en) | 2017-01-23 | 2017-01-23 | Temperature control system and method for electromagnetic heating roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108345328A CN108345328A (en) | 2018-07-31 |
| CN108345328B true CN108345328B (en) | 2020-02-07 |
Family
ID=62963092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710058748.0A Active CN108345328B (en) | 2017-01-23 | 2017-01-23 | Temperature control system and method for electromagnetic heating roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108345328B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2348421Y (en) * | 1998-11-06 | 1999-11-10 | 广州钢铁股份有限公司 | Temperature monitoring device for compact sliding bearing of cantilever mill |
| CN101937246A (en) * | 2010-09-28 | 2011-01-05 | 株洲科力通用设备有限公司 | Method and device for controlling temperature uniformity of heating roller |
| CN202785969U (en) * | 2012-07-19 | 2013-03-13 | 陕西彩虹电子玻璃有限公司 | Heating device for heating pull roll |
| CN104699145A (en) * | 2013-12-10 | 2015-06-10 | 大连明珠机械有限公司 | Calender roller temperature controller |
| CN205356727U (en) * | 2016-02-02 | 2016-06-29 | 刘亚斌 | Intelligence electromagnetic heating roller |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8213818B2 (en) * | 2009-03-17 | 2012-07-03 | Kabushiki Kaisha Toshiba | Temperature control apparatus, electrophotographic apparatus, and temperature control method for heating element |
-
2017
- 2017-01-23 CN CN201710058748.0A patent/CN108345328B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2348421Y (en) * | 1998-11-06 | 1999-11-10 | 广州钢铁股份有限公司 | Temperature monitoring device for compact sliding bearing of cantilever mill |
| CN101937246A (en) * | 2010-09-28 | 2011-01-05 | 株洲科力通用设备有限公司 | Method and device for controlling temperature uniformity of heating roller |
| CN202785969U (en) * | 2012-07-19 | 2013-03-13 | 陕西彩虹电子玻璃有限公司 | Heating device for heating pull roll |
| CN104699145A (en) * | 2013-12-10 | 2015-06-10 | 大连明珠机械有限公司 | Calender roller temperature controller |
| CN205356727U (en) * | 2016-02-02 | 2016-06-29 | 刘亚斌 | Intelligence electromagnetic heating roller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108345328A (en) | 2018-07-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106471348B (en) | Method and system for collecting roller data associated with a sensing roller including a first sensor array and a mating roller including a second sensor array | |
| US8281671B2 (en) | Load measuring device, manufacturing method for the device and control method using the device | |
| US10641667B2 (en) | Method and system associated with a sensing roll including pluralities of sensors and a meting roll for collecting roll data | |
| KR102206057B1 (en) | An electrode rolling apparatus having a heating unit for heating a non-coated portion and Manufacturing system for an electrode comprising the same | |
| CN108999010B (en) | Method and system associated with sensing and mating rolls for collecting roll data | |
| CN113567309B (en) | Method and device for testing temperature-sensitive characteristic of thermal intelligent textile | |
| US8510070B2 (en) | Non-contacting temperature profile measurement of rotating rolls | |
| CN108345328B (en) | Temperature control system and method for electromagnetic heating roller | |
| CN104264524B (en) | Wireless detection system for papermaking machine dryer surface temperature | |
| JPS61275462A (en) | Method and apparatus for optimizing method for heat treatment of flat constitution | |
| FI88826B (en) | OVER ANCHORING FOER ATT MAETA OMKRETSYTANS TEMPERATUR HOS EN ROTERANDE VALS | |
| CN210880759U (en) | Bottle base injection mold cooling performance testing arrangement | |
| EP3647491A1 (en) | Method, system, rotating machine element and computer program product for measuring the moisture of a fibre web in a tissue machine | |
| CN108691181B (en) | Method for judging clothes drying and clothes drying equipment | |
| CN111016246A (en) | High-precision temperature control system for rolling roller | |
| CN108345329A (en) | Electromechanic heating roller temperature-controlling system and its method | |
| CN114960091A (en) | Non-contact setting machine and method for spiral net heat setting | |
| CN114353435A (en) | Method for guiding glass fiber drying process and drying device | |
| CN108345330A (en) | Electromechanic heating roller temperature control method and its system | |
| US4479979A (en) | Method for indicating an insufficient level of yarn finish | |
| CN105480784A (en) | Wire guide roller | |
| FI128944B (en) | Method, system and computer program product for monitoring and/or controlling the conditions in a subsystem of a fiber web or finishing machine | |
| KR101502231B1 (en) | Control Method and Same Apparatus for Temperature of Creel Room | |
| CN110567738A (en) | Method, system and program for monitoring the operation of a web or paper finishing machine | |
| CN114216319B (en) | PE steel wire mesh pipe oven detection equipment and working method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |