CN108262894B - Maintenance method of flat vulcanizing machine - Google Patents
Maintenance method of flat vulcanizing machine Download PDFInfo
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- CN108262894B CN108262894B CN201711351085.8A CN201711351085A CN108262894B CN 108262894 B CN108262894 B CN 108262894B CN 201711351085 A CN201711351085 A CN 201711351085A CN 108262894 B CN108262894 B CN 108262894B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/002—Component parts, details or accessories; Auxiliary operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C2035/0211—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould resistance heating
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- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Abstract
The invention discloses a maintenance method of a flat vulcanizing machine, wherein the flat vulcanizing machine comprises a fixed flat plate and a movable flat plate, a first heating plate is arranged on the lower surface of the fixed flat plate, and a second heating plate is arranged on the upper surface of the movable flat plate; the first heating plate and the second heating plate respectively comprise a resistance heating layer and an electromagnetic heating layer which are arranged in a laminated manner; the maintenance method of the flat vulcanizing machine comprises the following steps: arranging the electromagnetic heating layer of the first heating plate and the electromagnetic heating layer of the second heating plate oppositely, and opening the two electromagnetic heating layers; acquiring the surface temperatures of the two electromagnetic heating layers, and calculating the temperature difference between the two electromagnetic heating layers; and when the temperature difference is greater than a first preset value, the electromagnetic heating layers with lower surface temperatures in the two electromagnetic heating layers are overhauled. The maintenance method provided by the invention can find the heating plate with problems in time and maintain the heating plate in time to ensure the quality of rubber products; and need not inspect all hot plates of curing press, realize accurate maintenance.
Description
Technical Field
The invention relates to the technical field of flat vulcanizing machines, in particular to a maintenance method of a flat vulcanizing machine.
Background
The flat vulcanizing machine is the main molding equipment for various rubber molded products and non-molded products, has the advantages of large pressure, wide adaptability, high efficiency, small occupied area and the like, and is widely applied to rubber product enterprises.
The heating plate is an important part for the flat vulcanizing machine, the flat vulcanizing machine needs a very high temperature when vulcanizing various thermosetting plastic molded products, the high temperature is provided by the heating plate, and if the heating plate is not maintained, the quality problem of the heating plate can influence the vulcanization quality of rubber products.
Disclosure of Invention
The invention mainly aims to provide a maintenance method of a flat vulcanizing machine, aiming at solving the problem that the quality problem of a heating plate can influence the vulcanization quality of a rubber product if the heating plate is not maintained.
In order to achieve the purpose, the invention provides a maintenance method of a flat vulcanizing machine, the flat vulcanizing machine comprises a vulcanizing machine body, the vulcanizing machine body comprises a fixed seat, a fixed flat plate and a movable flat plate, the fixed flat plate and the movable flat plate are respectively arranged on the fixed seat, the movable flat plate is arranged below the fixed flat plate in a lifting manner, a first heating plate is arranged on the lower surface of the fixed flat plate, and a second heating plate is arranged on the upper surface of the movable flat plate; the first heating plate and the second heating plate respectively comprise a resistance heating layer and an electromagnetic heating layer which are arranged in a laminated mode; the resistance heating layer comprises a shell made of heat-conducting non-magnetic-conducting materials and a resistance wire arranged in the shell, and heat-conducting insulating materials are filled in the shell; the electromagnetic heating layer comprises a magnetic conduction plate and an electromagnetic coil arranged between the magnetic conduction plate and the shell; when the flat vulcanizing machine is in a working state, the magnetic conduction plates of the first heating plate and the second heating plate are oppositely arranged, or the shells of the first heating plate and the second heating plate are oppositely arranged;
the maintenance method of the flat vulcanizing machine comprises the following steps:
arranging the electromagnetic heating layer of the first heating plate and the electromagnetic heating layer of the second heating plate oppositely, and opening the two electromagnetic heating layers;
acquiring the surface temperatures of the two electromagnetic heating layers, and calculating the temperature difference between the two electromagnetic heating layers;
and when the temperature difference is greater than a first preset value, overhauling the electromagnetic heating layers with lower surface temperature in the two electromagnetic heating layers.
Preferably, the step of repairing the electromagnetic heating layer with a lower surface temperature in the two electromagnetic heating layers includes:
acquiring first actual temperature values of the electromagnetic heating layer with lower surface temperature under different powers;
acquiring a first mapping relation table between different powers of the electromagnetic heating layer with lower surface temperature and a first standard temperature value;
when the first deviation value of the first standard temperature value and the first actual temperature value under the same power is not larger than a second preset value, increasing the power value corresponding to the first standard temperature value in the first mapping relation table;
and when the first deviation value is larger than the second preset value, replacing the electromagnetic coil of the electromagnetic heating layer with lower surface temperature.
Preferably, the maintenance method of the press vulcanizer further comprises:
arranging the resistance heating layer of the first heating plate and the resistance heating layer of the second heating plate oppositely, and opening the two resistance heating layers;
acquiring the surface temperatures of the two resistance heating layers, and calculating the surface temperature difference between the two resistance heating layers;
and when the surface temperature difference is greater than a third preset value, the lower surface temperature resistance heating layers in the two resistance heating layers are overhauled.
Preferably, the step of repairing the resistance heating layer with a lower surface temperature in the two resistance heating layers includes:
acquiring second actual temperature values of the resistance heating layer with lower surface temperature under different powers;
acquiring a second mapping relation table between different powers of the resistance heating layer with lower surface temperature and a second standard temperature value;
when a second deviation value of the second standard temperature value and the second actual temperature value under the same power is not larger than a fourth preset value, increasing a power value corresponding to the second standard temperature value in the second mapping relation table;
and when the second deviation value is larger than the fourth preset value, replacing the resistance wire of the resistance heating layer with lower surface temperature.
Preferably, the electromagnetic heating layer of the first heating plate and the electromagnetic heating layer of the second heating plate are oppositely arranged, and the two electromagnetic heating layers are opened, or,
will the resistance heating layer of first hot plate with the resistance heating layer of second hot plate sets up relatively, and opens two still include before the step of resistance heating layer:
arranging the electromagnetic heating layer of the first heating plate and the electromagnetic heating layer of the second heating plate oppositely, and opening the electromagnetic heating layer and the resistance heating layer of the first heating plate and the second heating plate;
when the difference value between the surface temperatures of the electromagnetic heating layers of the first heating plate and the second heating plate is not greater than a fifth preset value, judging that the vulcanizing press normally operates;
when the difference between the surface temperatures of the electromagnetic heating layers of the first heating plate and the second heating plate is greater than a fifth preset value, only the electromagnetic heating layer or the resistance heating layer of the first heating plate and the second heating plate is opened, and the electromagnetic heating layer or the resistance heating layer of the first heating plate and the second heating plate is overhauled respectively.
Preferably, the electromagnetic heating layer of the first heating plate and the electromagnetic heating layer of the second heating plate are oppositely arranged, and the two electromagnetic heating layers are opened, or,
will the resistance heating layer of first hot plate with the resistance heating layer of second hot plate sets up relatively, and opens two still include before the step of resistance heating layer:
arranging the resistance heating layer of the first heating plate and the resistance heating layer of the second heating plate oppositely, and opening the electromagnetic heating layer and the resistance heating layer of the first heating plate and the second heating plate;
when the difference value between the surface temperatures of the resistance heating layers of the first heating plate and the second heating plate is not greater than a sixth preset value, judging that the vulcanizing press normally operates;
when the difference between the surface temperatures of the resistance heating layers of the first heating plate and the second heating plate is greater than a sixth preset value, only the electromagnetic heating layer or the resistance heating layer of the first heating plate and the second heating plate is opened, and the electromagnetic heating layer or the resistance heating layer of the first heating plate and the second heating plate is overhauled respectively.
According to the technical scheme, when the rubber product is placed between the electromagnetic heating layer of the first heating plate and the electromagnetic heating layer of the second heating plate for heating, only the electromagnetic heating layers of the first heating plate and the second heating plate can be started, and the quality of the electromagnetic heating layers of the first heating plate and the second heating plate has a main influence on the quality of the rubber product. Through opening the electromagnetic heating layer of first, second hot plate to compare the surface temperature of these two electromagnetic heating layers, if it is great to differ, then explain wherein the lower electromagnetic heating layer quality of temperature has the problem, needs to overhaul. Through this kind of mode, can in time discover the hot plate that has a problem, in time maintain in order to guarantee the quality of rubber products. In addition, all heating plates of the flat vulcanizing machine do not need to be checked, and accurate maintenance is achieved.
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 structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural view of a heating plate according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart showing a first embodiment of a maintenance method of a press vulcanizer of the present invention;
FIG. 3 is a schematic view showing a detailed flow of the maintenance step of the electromagnetic heating layers with lower surface temperature in the two electromagnetic heating layers according to the second embodiment of the maintenance method of the flat vulcanizing machine of the present invention;
FIG. 4 is a schematic flow chart showing a maintenance method of a press vulcanizer of the present invention;
FIG. 5 is a schematic flow chart showing a maintenance method of a press vulcanizer of the present invention;
FIG. 6 is a schematic flow chart showing a maintenance method of a press vulcanizer of the present invention.
The reference numbers illustrate:
reference numerals | Name (R) | Reference numerals | Name (R) |
1 | |
2 | |
11 | |
21 | Magnetic |
12 | Resistance wire | 22 | |
13 | Heat-conducting insulating material |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a maintenance method of a flat vulcanizing machine, and please refer to fig. 1, the flat vulcanizing machine applicable to the maintenance method of the flat vulcanizing machine comprises a vulcanizing machine body, wherein the vulcanizing machine body comprises a fixed seat, a fixed flat plate and a movable flat plate which are respectively arranged on the fixed seat, the movable flat plate is arranged below the fixed flat plate in a lifting manner, a first heating plate is arranged on the lower surface of the fixed flat plate, and a second heating plate is arranged on the upper surface of the movable flat plate; the first heating plate and the second heating plate respectively comprise a resistance heating layer 1 and an electromagnetic heating layer 2 which are arranged in a laminated manner; the resistance heating layer 1 comprises a shell 11 made of a heat-conducting and non-magnetic-conducting material and a resistance wire 12 arranged in the shell 11, and the shell 11 is filled with a heat-conducting and insulating material 13; the electromagnetic heating layer 2 comprises a magnetic conduction plate 21 and an electromagnetic coil 22 arranged between the magnetic conduction plate 21 and the shell 11; when the vulcanizing press is in a working state, the magnetic conduction plates 21 of the first heating plate and the second heating plate are arranged oppositely, or the shells 11 of the first heating plate and the second heating plate are arranged oppositely.
This vulcanizing press integrates electromagnetic heating and resistance heating on the hot plate, and when both started simultaneously, can not cause mutual interference. An engineer can select a proper heating mode according to the temperature requirement of an actual product, for example, when the required temperature is low, resistance heating is adopted, and when the required temperature is high, electromagnetic heating is adopted.
Referring to fig. 2, a maintenance method of a press vulcanizer according to a first embodiment of the present invention is provided. The maintenance method of the flat vulcanizing machine comprises the following steps:
step S100a, oppositely arranging the electromagnetic heating layer of the first heating plate and the electromagnetic heating layer of the second heating plate, and opening the two electromagnetic heating layers;
step S200a, acquiring the surface temperatures of the two electromagnetic heating layers, and calculating the temperature difference between the two electromagnetic heating layers;
and step S300a, when the temperature difference is greater than a first preset value, overhauling the electromagnetic heating layers with lower surface temperature in the two electromagnetic heating layers.
According to the technical scheme, when the rubber product is placed between the electromagnetic heating layer of the first heating plate and the electromagnetic heating layer of the second heating plate for heating, only the electromagnetic heating layers of the first heating plate and the second heating plate can be started, and the quality of the electromagnetic heating layers of the first heating plate and the second heating plate has a main influence on the quality of the rubber product. Through opening the electromagnetic heating layer of first, second hot plate to compare the surface temperature of these two electromagnetic heating layers, if it is great to differ, then explain wherein the lower electromagnetic heating layer quality of temperature has the problem, needs to overhaul. Through this kind of mode, can in time discover the hot plate that has a problem, in time maintain in order to guarantee the quality of rubber products. In addition, all heating plates of the flat vulcanizing machine do not need to be checked, and accurate maintenance is achieved.
Referring to fig. 3, a second embodiment of the maintenance method of the flat vulcanizing machine according to the present invention is a maintenance method of a flat vulcanizing machine according to the first embodiment of the maintenance method of a flat vulcanizing machine according to the present invention, wherein the repairing the electromagnetic heating layer with a lower surface temperature in the two electromagnetic heating layers includes:
step S301, acquiring first actual temperature values of the electromagnetic heating layer with lower surface temperature under different powers;
step S302, a first mapping relation table between different powers of the electromagnetic heating layer with the lower surface temperature and a first standard temperature value is obtained.
Specifically, if the surface temperature of the electromagnetic heating layer of the first heating plate is low, different powers are applied to the electromagnetic coils in the first heating plate, and the surface temperature of the electromagnetic heating layer is detected, which is defined as a first actual temperature value, for example, 500W, 800W, 1000W, 1300W, which corresponds to the measured first actual temperature values of 98 ℃, 125 ℃, 150 ℃, 172 ℃.
Then, the temperature which the surface of the electromagnetic heating layer should reach under the power of the electromagnetic coil is obtained, the temperature is defined as a first standard temperature value, the corresponding relation between the power and the first standard temperature value is stored in a first mapping relation table, and the first standard temperature values which correspond to 500W, 800W, 1000W and 1300W are 100 ℃, 130 ℃, 160 ℃ and 180 ℃ obtained from the first mapping relation table.
Step S303, when the first deviation value between the first standard temperature value and the first actual temperature value under the same power is not greater than a second preset value, increasing the power value corresponding to the first standard temperature value in the first mapping relation table;
and S304, when the first deviation value is larger than the second preset value, replacing the electromagnetic coil of the electromagnetic heating layer with the lower surface temperature.
Specifically, under 500W, the first deviation value of the first standard temperature value and the first actual temperature value is 2 ℃; under 800W, the first deviation value of the first standard temperature value and the first actual temperature value is 5 ℃; under 1000W, the first deviation value of the first standard temperature value and the first actual temperature value is 10 ℃; at 1300W, the first deviation value between the first standard temperature value and the first actual temperature value is 8 ℃.
Setting the second preset value to be 5 ℃, increasing the power corresponding to 100 ℃ and 130 ℃ in the first mapping relation table, wherein the power originally corresponds to 500W and 800W respectively, and the power is adjusted to correspond to 520W and 860W respectively, namely, when the vulcanization temperature of the rubber product is required to be 100 ℃, applying 520W of power to the electromagnetic coil; when the vulcanization temperature of the rubber product is required to be 130 ℃, 860W of power is applied to the electromagnetic coil.
Because the deviation value between the first standard temperature value corresponding to 1000W and 1300W and the measured first actual temperature value is more than 5 ℃, the heating temperature which should be obtained by the rubber product cannot be accurately controlled by adjusting the power, and at the moment, the electromagnetic coil needs to be replaced so as to obtain the optimal vulcanization quality of the rubber product.
In this embodiment, according to the lower electromagnetic heating layer of surface temperature difference between first actual temperature value and the first standard value under different power, take different maintenance modes to the hot plate, when guaranteeing rubber products's vulcanization quality, do not increase material cost and human cost as far as possible.
Referring to fig. 4, a third embodiment of the maintenance method of the flat vulcanizing machine of the present invention is shown, and based on the first embodiment of the maintenance method of the flat vulcanizing machine of the present invention, the maintenance method of the flat vulcanizing machine further includes:
step S100b, oppositely arranging the resistance heating layers of the first heating plate and the second heating plate, and opening the two resistance heating layers;
step S200b, acquiring the surface temperatures of the two resistance heating layers, and calculating the surface temperature difference between the two resistance heating layers;
and step S300b, when the surface temperature difference is greater than a third preset value, the resistance heating layers with lower surface temperatures in the two resistance heating layers are overhauled.
In this embodiment, when rubber products were placed and are heated between the resistance heating layer of first hot plate and the resistance heating layer of second hot plate, can only open the resistance heating layer of first, second hot plate, the quality of the resistance heating layer of first, second hot plate played the main influence to rubber products' quality this moment. Through the resistance zone of heating of opening first, second hot plate to compare the surface temperature of these two resistance zone of heating, if the difference is great, then explain wherein the resistance zone of heating quality that the temperature is lower has the problem, needs to overhaul. Through this kind of mode, can in time discover the hot plate that has a problem, in time maintain in order to guarantee the quality of rubber products. In addition, all heating plates of the flat vulcanizing machine do not need to be checked, and accurate maintenance is achieved.
Further, the step of overhauling the resistance heating layers with lower surface temperature in the two resistance heating layers comprises:
acquiring second actual temperature values of the resistance heating layer with lower surface temperature under different powers;
acquiring a second mapping relation table between different powers of the resistance heating layer with lower surface temperature and a second standard temperature value;
when a second deviation value of the second standard temperature value and the second actual temperature value under the same power is not larger than a fourth preset value, increasing a power value corresponding to the second standard temperature value in the second mapping relation table;
and when the second deviation value is larger than the fourth preset value, replacing the resistance wire of the resistance heating layer with lower surface temperature.
According to the deviation between the second actual temperature value and the second standard value of the resistance heating layer with lower surface temperature under different powers, different maintenance modes are adopted for the heating plate, so that the vulcanization quality of the rubber product is ensured, and the material cost and the labor cost are not increased as much as possible.
Referring to fig. 5, a fourth embodiment of the maintenance method of a flat vulcanizing machine according to the present invention is based on the third embodiment of the maintenance method of a flat vulcanizing machine according to the present invention, wherein the electromagnetic heating layer of the first heating plate and the electromagnetic heating layer of the second heating plate are oppositely disposed, and the two electromagnetic heating layers are turned on, or,
will the resistance heating layer of first hot plate with the resistance heating layer of second hot plate sets up relatively, and opens two still include before the step of resistance heating layer:
step S400, oppositely arranging the electromagnetic heating layer of the first heating plate and the electromagnetic heating layer of the second heating plate, and opening the electromagnetic heating layers and the resistance heating layers of the first heating plate and the second heating plate;
step S500, when the difference value between the surface temperatures of the electromagnetic heating layers of the first heating plate and the second heating plate is not more than a fifth preset value, judging that the vulcanizing press normally operates;
and S600, when the difference value between the surface temperatures of the electromagnetic heating layers of the first heating plate and the second heating plate is greater than a fifth preset value, only starting the electromagnetic heating layers or the resistance heating layers of the first heating plate and the second heating plate, and respectively overhauling the electromagnetic heating layers or the resistance heating layers of the first heating plate and the second heating plate.
In the embodiment, the resistance heating layers and the electromagnetic heating layers of the first heating plate and the second heating plate are simultaneously opened, and the rubber product is placed between the electromagnetic heating layers of the first heating plate and the second heating plate for heating; when the temperature difference between the two electromagnetic heating layers is large, it indicates that the heating plate has a problem, and the heating plate needs to be overhauled, and the specific overhauling steps of the electromagnetic heating layers are step S100a, step S200a and step S300 a; the specific maintenance steps of the resistance heating layer are step S100b, step S200b and step S300b, and the sequence of maintenance of the electromagnetic heating layer and the resistance heating layer is not limited.
Referring to fig. 6, a fifth embodiment of the maintenance method of a flat vulcanizing machine according to the present invention is based on the third embodiment of the maintenance method of a flat vulcanizing machine according to the present invention, wherein the electromagnetic heating layer of the first heating plate and the electromagnetic heating layer of the second heating plate are oppositely disposed, and the two electromagnetic heating layers are turned on, or,
will the resistance heating layer of first hot plate with the resistance heating layer of second hot plate sets up relatively, and opens two still include before the step of resistance heating layer:
step S700, oppositely arranging the resistance heating layer of the first heating plate and the resistance heating layer of the second heating plate, and opening the electromagnetic heating layer and the resistance heating layer of the first heating plate and the second heating plate;
step S800, when the difference value between the surface temperatures of the resistance heating layers of the first heating plate and the second heating plate is not more than a sixth preset value, judging that the vulcanizing press normally operates;
and S900, when the difference value between the surface temperatures of the resistance heating layers of the first heating plate and the second heating plate is greater than a sixth preset value, only starting the electromagnetic heating layer or the resistance heating layer of the first heating plate and the second heating plate, and respectively overhauling the electromagnetic heating layer or the resistance heating layer of the first heating plate and the second heating plate.
In the embodiment, the resistance heating layers of the first heating plate and the second heating plate and the electromagnetic heating layer are simultaneously opened, and the rubber product is placed between the resistance heating layers of the first heating plate and the second heating plate for heating; when the temperature difference between the two resistance heating layers is large, the heating plates are required to be overhauled if the temperature difference is large, and the specific overhauling steps of the electromagnetic heating layers are step S100a, step S200a and step S300 a; the specific maintenance steps of the resistance heating layer are step S100b, step S200b and step S300b, and the sequence of maintenance of the electromagnetic heating layer and the resistance heating layer is not limited.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (5)
1. The maintenance method of the flat vulcanizing machine is characterized in that the flat vulcanizing machine comprises a vulcanizing machine body, the vulcanizing machine body comprises a fixed seat, a fixed flat plate and a movable flat plate, the fixed flat plate and the movable flat plate are respectively arranged on the fixed seat, the movable flat plate is arranged below the fixed flat plate in a lifting manner, a first heating plate is arranged on the lower surface of the fixed flat plate, and a second heating plate is arranged on the upper surface of the movable flat plate; the first heating plate and the second heating plate respectively comprise a resistance heating layer and an electromagnetic heating layer which are arranged in a laminated mode; the resistance heating layer comprises a shell made of heat-conducting non-magnetic-conducting materials and a resistance wire arranged in the shell, and heat-conducting insulating materials are filled in the shell; the electromagnetic heating layer comprises a magnetic conduction plate and an electromagnetic coil arranged between the magnetic conduction plate and the shell; when the flat vulcanizing machine is in a working state, the magnetic conduction plates of the first heating plate and the second heating plate are oppositely arranged, or the shells of the first heating plate and the second heating plate are oppositely arranged;
the maintenance method of the flat vulcanizing machine comprises the following steps:
arranging the electromagnetic heating layer of the first heating plate and the electromagnetic heating layer of the second heating plate oppositely, and opening the two electromagnetic heating layers;
acquiring the surface temperatures of the two electromagnetic heating layers, and calculating the temperature difference between the two electromagnetic heating layers;
when the temperature difference is larger than a first preset value, acquiring first actual temperature values of the electromagnetic heating layer with lower surface temperature under different powers, wherein the first preset value is used for indicating that the electromagnetic heating layer with lower temperature has quality problems and needs to be overhauled;
acquiring a first mapping relation table between different powers of the electromagnetic heating layer with lower surface temperature and a first standard temperature value;
when the first deviation value of the first standard temperature value and the first actual temperature value under the same power is not larger than a second preset value, increasing the power value corresponding to the first standard temperature value in the first mapping relation table;
and when the first deviation value is larger than a second preset value, replacing the electromagnetic coil of the electromagnetic heating layer with the lower surface temperature, wherein the second preset value is used for explaining that the heating temperature which is obtained by the rubber product cannot be accurately controlled by adjusting the power.
2. The maintenance method of a press vulcanizer of claim 1, further comprising:
arranging the resistance heating layer of the first heating plate and the resistance heating layer of the second heating plate oppositely, and opening the two resistance heating layers;
acquiring the surface temperatures of the two resistance heating layers, and calculating the surface temperature difference between the two resistance heating layers;
and when the surface temperature difference is greater than a third preset value, the lower resistance heating layers with lower surface temperatures in the two resistance heating layers are overhauled, and the third preset value is used for explaining that the quality of the lower resistance heating layers with lower temperatures has problems and needs to be overhauled.
3. The maintenance method of a press according to claim 2, wherein said step of performing an inspection of the resistance heating layer having a lower surface temperature among the two resistance heating layers comprises:
acquiring second actual temperature values of the resistance heating layer with lower surface temperature under different powers;
acquiring a second mapping relation table between different powers of the resistance heating layer with lower surface temperature and a second standard temperature value;
when a second deviation value of the second standard temperature value and the second actual temperature value under the same power is not larger than a fourth preset value, increasing a power value corresponding to the second standard temperature value in the second mapping relation table;
and when the second deviation value is greater than the fourth preset value, replacing the resistance wire of the resistance heating layer with the lower surface temperature, wherein the fourth preset value is used for indicating that the resistance wire of the resistance heating layer with the lower surface temperature needs to be replaced.
4. The maintenance method of a press vulcanizer of claim 2 or 3, wherein said electromagnetic heating layers of said first heating plate and said second heating plate are arranged to face each other and both of said electromagnetic heating layers are turned on, or,
will the resistance heating layer of first hot plate with the resistance heating layer of second hot plate sets up relatively, and opens two still include before the step of resistance heating layer:
arranging the electromagnetic heating layer of the first heating plate and the electromagnetic heating layer of the second heating plate oppositely, and opening the electromagnetic heating layer and the resistance heating layer of the first heating plate and the second heating plate;
when the difference value between the surface temperatures of the electromagnetic heating layers of the first heating plate and the second heating plate is not greater than a fifth preset value, judging that the vulcanizing press normally operates;
when the difference between the surface temperature of the electromagnetic heating layers of the first heating plate and the second heating plate is greater than a fifth preset value, only the electromagnetic heating layers or the resistance heating layers of the first heating plate and the second heating plate are opened, the electromagnetic heating layers or the resistance heating layers of the first heating plate and the second heating plate are overhauled respectively, and the fifth preset value is used for indicating that the heating plates have problems through the temperature difference of the two electromagnetic heating layers.
5. The maintenance method of a press vulcanizer of claim 2 or 3, wherein said electromagnetic heating layers of said first heating plate and said second heating plate are arranged to face each other and both of said electromagnetic heating layers are turned on, or,
will the resistance heating layer of first hot plate with the resistance heating layer of second hot plate sets up relatively, and opens two still include before the step of resistance heating layer:
arranging the resistance heating layer of the first heating plate and the resistance heating layer of the second heating plate oppositely, and opening the electromagnetic heating layer and the resistance heating layer of the first heating plate and the second heating plate;
when the difference value between the surface temperatures of the resistance heating layers of the first heating plate and the second heating plate is not greater than a sixth preset value, judging that the vulcanizing press normally operates;
when the difference between the surface temperature of the resistance heating layers of the first heating plate and the second heating plate is greater than a sixth preset value, only the electromagnetic heating layer or the resistance heating layer of the first heating plate and the second heating plate is opened, the electromagnetic heating layer or the resistance heating layer of the first heating plate and the second heating plate are overhauled respectively, and the sixth preset value is used for indicating that the heating plates have problems through the temperature difference of the two resistance heating layers.
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CN1362321A (en) * | 2001-05-28 | 2002-08-07 | 株洲时代新材料科技股份有限公司 | Electromagnetic heating method and heater for sulfurizing machine |
CN1710997A (en) * | 2005-06-07 | 2005-12-21 | 金书明 | Vulcanizer and melamine ware former electromagnetic heating method and apparatus |
CN105224002A (en) * | 2014-06-30 | 2016-01-06 | 展讯通信(上海)有限公司 | Radio system temperature compensation, device and mobile terminal |
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