CN112549752A - Electromagnetic heating silica gel roller and processing method thereof - Google Patents
Electromagnetic heating silica gel roller and processing method thereof Download PDFInfo
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- CN112549752A CN112549752A CN202011330765.3A CN202011330765A CN112549752A CN 112549752 A CN112549752 A CN 112549752A CN 202011330765 A CN202011330765 A CN 202011330765A CN 112549752 A CN112549752 A CN 112549752A
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- 239000000741 silica gel Substances 0.000 title claims abstract description 204
- 229910002027 silica gel Inorganic materials 0.000 title claims abstract description 204
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 203
- 238000010438 heat treatment Methods 0.000 title claims abstract description 100
- 238000003672 processing method Methods 0.000 title claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 75
- 239000002184 metal Substances 0.000 claims abstract description 75
- 239000000696 magnetic material Substances 0.000 claims abstract description 3
- 238000010073 coating (rubber) Methods 0.000 claims description 91
- 229920001971 elastomer Polymers 0.000 claims description 23
- 239000000853 adhesive Substances 0.000 claims description 19
- 230000001070 adhesive effect Effects 0.000 claims description 19
- 239000011248 coating agent Substances 0.000 claims description 19
- 238000000576 coating method Methods 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 16
- 238000004073 vulcanization Methods 0.000 claims description 10
- 239000003292 glue Substances 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 9
- 239000004809 Teflon Substances 0.000 claims description 7
- 229920006362 Teflon® Polymers 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 claims description 7
- 238000005538 encapsulation Methods 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 5
- 238000004321 preservation Methods 0.000 claims description 5
- 238000009991 scouring Methods 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 238000013459 approach Methods 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000007670 refining Methods 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 238000003754 machining Methods 0.000 claims 1
- 230000007547 defect Effects 0.000 abstract description 2
- 238000010023 transfer printing Methods 0.000 description 34
- 239000010410 layer Substances 0.000 description 33
- 238000012546 transfer Methods 0.000 description 30
- 230000000694 effects Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F16/00—Transfer printing apparatus
-
- 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
-
- 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
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Fixing For Electrophotography (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
The invention discloses an electromagnetic heating silica gel roller and a processing method thereof, wherein the electromagnetic heating silica gel roller comprises the following steps: a coil bracket made of a non-magnetic material; an electromagnetic wire wound on the coil bracket, the electromagnetic wire being connected to a high-frequency power supply; the silica gel roller is sleeved outside the coil bracket and comprises an inner metal roller and a silica gel layer coated outside the metal roller, the thickness of the silica gel layer is not more than 4mm, and the electromagnetic wire is electrified to heat the silica gel roller. The electromagnetic heating silica gel roller provided by the invention overcomes the defects of a silica gel roller in the traditional technology, so that the temperature of the outer surface of the internal heating silica gel roller can reach more than 300 ℃, the electromagnetic heating silica gel roller can be stably used for a long time, and the application range of the electromagnetic heating silica gel roller is effectively widened.
Description
Technical Field
The invention relates to the technical field of thermal transfer printing, in particular to an electromagnetic heating silica gel roller and a processing method thereof.
Background
The heating rollers of the traditional heat transfer printer are mainly divided into two types, one is an all-metal roller with chrome plated surface or Teflon plated surface, and the other is an externally heated silica gel roller.
Among them, the object of the all-metal roller transfer printing is only a flexible material, and the transfer printing cannot be performed on a rigid material (such as an acrylic plate, an aluminum plate, a stainless steel iron plate, etc.). The external heating silica gel roller can transfer rigid materials, and the structure of the external heating silica gel roller is shown in fig. 1, but the external heating silica gel roller also has great defects in use:
1. the area of the external heating silica gel roller which can contact and heat with an external heating device is limited, generally is 1/3 at most on the outer circumferential surface of the silica gel roller, so that the requirement on the power of the heating device is extremely high, the minimum requirement is more than 15KW, and the heating cost is high;
2. when the silica gel roller is preheated, the silica gel roller needs to rotate ceaselessly to heat the whole roller, so that an independent transmission device needs to be added to the silica gel roller, the use cost of the silica gel roller is further increased, the size of the silica gel roller is increased, and the installation difficulty is increased;
3. when the thermal transfer printing is carried out, the surface temperature of the silica gel roller is required to be heated to 160-200 ℃, and because the contact area between the silica gel roller and the heating device is limited, if the surface temperature of the silica gel roller is required to be heated to 180 ℃, the silica gel roller is required to be heated for at least more than 2 hours, so that the preheating time for use during each startup is long, and the working efficiency is reduced;
4. because the silica gel roller needs to be divided into a part to be contacted with the heating device, the contact area of the heat transfer film and the silica gel roller is greatly compressed, and at most, 1/4 on the outer circumferential surface of the silica gel roller is remained, so that the heating area of the heat transfer film is small, the heat is greatly wasted, and the transfer efficiency is further reduced.
Of course, other fields also include internally heated silicone rollers, but these cannot be used normally in the field of thermal transfer printing. The minimum finished product encapsulation thickness of an internal heating silica gel roller on the market at present can only reach 7mm, the thermal conductivity of silica gel is poor, the higher the temperature required during heating is, the larger the temperature difference between the inside and the outside is, generally speaking, if the outside needs to reach 120 ℃, the temperature of the inside needs to reach 200 ℃, and if the outside needs to reach 180 ℃, the temperature of the inside needs to reach 280 ℃. The structure of the silica gel roller is generally encapsulated outside the metal roller, the temperature resistance of an adhesive contacting the silica gel and the metal is poor, the temperature resistance of the adhesive is generally not more than 220 ℃, even if the adhesive with the highest temperature resistance on the market is used, the temperature of the adhesive is generally not more than 260 ℃, otherwise, the adhesive is failed, and the silica gel falls off from the metal roller, so that the internally heated silica gel roller cannot be used in the thermal transfer industry at present.
Disclosure of Invention
In order to solve the problems, the invention provides the electromagnetic heating silica gel roller and the processing method thereof, and the internal heating silica gel roller can be applied to the thermal transfer printing industry, so that the energy is saved, and the thermal transfer printing efficiency is improved.
The invention specifically adopts the following technical scheme for realizing the purpose:
an electromagnetic heating silica gel roller comprising:
a coil bracket made of a non-magnetic material;
an electromagnetic wire wound on the coil bracket, the electromagnetic wire being connected to a high-frequency power supply;
the silica gel roller is sleeved outside the coil bracket and comprises an inner metal roller and a silica gel layer coated outside the metal roller, the thickness of the silica gel layer is not more than 4mm, and the electromagnetic wire is electrified to heat the silica gel roller.
Still further, the coil carrier is a hollow refractory cement carrier.
Furthermore, at least one support ring is detachably arranged on the coil bracket, and the support ring is a tetrafluoro support ring.
Furthermore, the processing method of the electromagnetic heating silica gel roller comprises the following steps:
(1) coating an adhesive on the surface of the metal roller, and uniformly distributing silica gel on the surface of the metal roller by using a rubber coating machine to form a seamless rubber layer;
(2) feeding the metal roller into a vulcanizing machine for vulcanization to obtain a silica gel roller;
(3) the electromagnetic wire is wound on the coil bracket, and then the silica gel roller is sleeved outside the coil bracket.
Still further, the silica gel layer comprises the following components in percentage by weight: 3 to 5 percent of nano aluminum nitride powder, 0.5 to 1.5 percent of vulcanizing agent and 90 to 96 percent of raw silica gel.
Still further, the encapsulation machine comprises:
a first rubber coating roller;
the second rubber coating roller is arranged in parallel with the first rubber coating roller;
the mounting flanges are positioned between the first rubber coating roller and the second rubber coating roller, 2 metal rollers are symmetrically arranged on the mounting flanges, and the metal rollers are parallel to the first rubber coating roller;
the adjusting device drives the first rubber coating roller and the second rubber coating roller to mutually approach or depart from each other so as to adjust the thickness of the silica gel layer;
the first driving device drives the first rubber coating roller and the second rubber coating roller to rotate for rubber coating;
the first driving device drives the first rubber coating roller and the second rubber coating roller to rotate at the same speed to coat the silica gel outside the metal roller, and the metal roller is coated along with the first rubber coating roller and the second rubber coating roller in a rotating matching mode under the action of friction force.
Furthermore, the rubber coating machine also comprises a frame and a wallboard fixedly arranged at the top of the frame, wherein 2 wallboards are arranged, the mounting flange is rotationally connected with the wallboard, bearing slide rails positioned at two sides of the mounting flange are arranged on the wallboard, first track bearings positioned in the bearing slide rails are arranged at two ends of the first rubber coating roller, the two ends of the second rubber wrapping roller are provided with second track bearings positioned in the bearing slide rails, the adjusting device comprises a first worm fixedly connected with the first track bearing, a first worm wheel driving the first worm to reciprocate, a second worm fixedly connected with the second track bearing and a second worm wheel driving the second worm to reciprocate, a first link rod is arranged between 2 first worm wheels, a second link rod is arranged between 2 second worm wheels, and one ends of the first link rod and the second link rod are respectively provided with a second driving device for driving the first link rod/the second link rod to rotate.
Furthermore, first rubber coating roller and second rubber coating roller one end are provided with first sprocket, second sprocket respectively, first sprocket is provided with third sprocket, fourth sprocket respectively with second sprocket below, third sprocket and fourth sprocket middle part are provided with the connecting axle, the connecting axle tip rotates and is connected with a lever, the lever other end rotates with the frame to be connected, the lever is connected one end with the connecting axle and is provided with the tensioning spring, the tensioning spring other end and frame fixed connection, first drive arrangement include driving motor and with driving motor's output shaft's fifth sprocket, mesh in proper order on first sprocket, second sprocket, fourth sprocket, fifth sprocket, the third sprocket and have a chain.
Furthermore, the first rubber wrapping roller is a Teflon roller, and the second rubber wrapping roller is a chrome plating roller.
Furthermore, the specific processing method of the electromagnetic heating silica gel roller comprises the following steps:
(1) forming a plurality of inclined holes on the outer surface of the metal roller, wherein the inclined angle of each inclined hole is 30-60 degrees, the diameter of each inclined hole is 0.5-1mm, and the depth of each inclined hole is 0.3-0.6mm, then coating an adhesive on the outer surface of the metal roller and the inner surfaces of the inclined holes, putting the metal roller and the inclined holes into an oven after drying, and heating to 100 ℃ and 130 ℃ for heat preservation for 1 h;
(2) weighing aluminum nitride nanopowder, a vulcanizing agent and raw silica gel, scouring in a rubber refining machine until all raw materials are uniformly mixed, putting the mixed material into an extruder, and extruding for 3 times to obtain a silica gel strip, wherein the material is extruded for the first 2 times and then put into the extruder again for extruding again, and the temperature of the silica gel strip extruded for the third time is 50-65 ℃;
(3) mounting the heat-insulated metal roller on a rubber coating machine through a mounting flange, adjusting the positions of a first rubber coating roller and a second rubber coating roller, and feeding a silica gel strip between the first rubber coating roller and the metal roller for seamless coating while the silica gel strip is hot;
(4) after the coating is finished, winding a closed high-temperature film and a high-temperature-resistant rubber-coated cloth tape outside the silica gel, and then putting the silica gel into a vulcanizing machine for vulcanizing, wherein the vulcanizing is carried out in two sections, the first section is carried out at the temperature of 140-;
(5) and winding the electromagnetic wire on the coil bracket, and then sleeving the silica gel roller outside the coil bracket to obtain the electromagnetic heating silica gel roller.
The invention has the following beneficial effects:
1. the electromagnetic heating silica gel roller is used, so that the heating is safer and quicker compared with heat conduction oil heating, the heating area of internal heating is large, and the heating is quicker;
2. the traditional external heating silica gel roller used in the thermal transfer printing industry has the advantages that the effective heating area of the surface of the traditional external heating silica gel roller contacted with a heating device is only 1/3 of the total area at most, the self temperature rise is slow, the extremely long preheating time is needed, meanwhile, the area contacted with the thermal transfer printing film is only 1/4 of the external surface area of the silica gel roller at most, and the transfer printing efficiency is low; in the invention, the silica gel roller is heated in an electromagnetic internal heating mode, so that the integral heating of the silica gel roller is realized, the preheating time of the electromagnetic heating silica gel roller is greatly reduced, the energy loss is reduced, meanwhile, the contact area of the silica gel layer and the heat transfer film can reach 2/3 of the surface area of the silica gel layer, the heat transfer film can effectively absorb heat, the heat transfer rate can be greatly improved, and the energy consumption of the heat transfer film is effectively reduced by combining the silica gel layer and the heat transfer film;
3. the silica gel roller is processed by adopting a special processing method, the obtained silica gel layer of the silica gel roller is thin, the thickness of the silica gel layer can be kept below 4mm, the silica gel roller with the same specification can be produced, the glue consumption can be reduced to 1/5 of the traditional silica gel roller, a large amount of raw materials can be saved, the production cost is reduced, meanwhile, the silica gel layer on the surface of the obtained silica gel roller is compact and does not foam, the temperature difference between the inside and the outside is small in the using process, the silica gel roller can be used at 200 ℃ for a long time, the service performance is better, the high-temperature requirement of the thermal transfer printing industry is met, the embarrassment that the rigid material is difficult to transfer in the traditional thermal transfer printing industry is broken;
4. the surface of the metal roller is provided with the inclined holes and then is encapsulated, so that the bonding strength between the metal roller and the silica gel can be effectively enhanced, the silica gel roller is not limited by the durable temperature of an adhesive in the use process, and multiple tests show that the electromagnetic heating silica gel roller prepared by adopting the method can not be separated from or loosened from the metal roller even if being used for a long time at 350 ℃, the heat resistance of the silica gel roller is effectively improved, and the use range of the silica gel roller is widened;
5. the novel processing method shortens the vulcanizing time to 6 hours, can effectively improve the processing efficiency of the electromagnetic heating silica gel roller, does not influence the quality of the electromagnetic silica gel roller, reduces the processing cost and improves the income of processing enterprises.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural view of a conventional external heating silica gel roller;
FIG. 2 is a schematic diagram of a coil carrier structure;
FIG. 3 is a schematic diagram of a silica gel layer structure;
FIG. 4 is a schematic diagram of an electromagnetic heating silica gel roller application structure;
FIG. 5 is a schematic view of the front structure of the encapsulation machine;
FIG. 6 is a top view of the encapsulation machine;
FIG. 7 is a left side view of the glue applicator;
FIG. 8 is a right side view of the taping machine;
FIG. 9 is a schematic view showing the overall structure of the thermal transfer printer of the present invention;
reference numerals: 1-electromagnetic heating silica gel roller, 2-discharging device, 201-coil bracket, 202-electromagnetic wire, 203-supporting ring, 204-silica gel layer, 205-connecting flange, 206-thermocouple, 207-metal roller, 208-conducting ring, 3-conveying mechanism, 4-film collecting device, 5-transfer bottom roller, 6-film uncovering press roller, 7-frame, 701-first chain wheel, 702-second chain wheel, 703-third chain wheel, 704-fourth chain wheel, 705-fifth chain wheel, 706-chain, 707-lever, 708-tension spring, 709-connecting shaft, 8-first rubber coating roller, 9-second rubber coating roller, 10-two wall coating plates, 1001-bearing slide rail, mounting flange, 1003-supporting pull rod, 1101-a first worm, 1102-a first orbital bearing, 1103-a first link, 1104-a speed reduction motor, 1105-an adjusting rocking wheel, 1106-a second orbital bearing, 1107-a second worm, 1108-a second link, 12-a drive motor.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like refer to the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which the product of the present invention is conventionally placed in use, and are used for convenience of description and simplification of description, but do not refer to or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "in communication" are to be interpreted broadly, e.g., as either fixed or removable communication, or integrally connected; either mechanically or electrically; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
Referring to fig. 2 to 4, the present embodiment provides an electromagnetic heating silica gel roller, which includes: the coil bracket 201 is made of nonmagnetic materials, such as a ceramic bracket or a refractory cement bracket, in order to reduce the weight and facilitate the installation, the coil bracket 201 can be in a hollow cylindrical shape, and 2-3 nonmagnetic threaded steel rods with the diameter of 6-8mm can be arranged in the coil bracket 201 to enhance the strength of the coil bracket and make the coil bracket more durable; the electromagnetic wire 202 is high-temperature resistant, is wound on the coil bracket 201, and is connected with a high-frequency power supply to supply heat to the electromagnetic wire 202, so that the electromagnetic induction heating effect is realized; the silica gel roller is sleeved outside the coil bracket 201 and comprises an inner metal roller 207 and a silica gel layer 204 coated outside the metal roller 207, the thickness of the silica gel layer 204 is less than or equal to 4mm, and the electromagnetic wire 202 is electrified to heat the silica gel roller.
Referring to fig. 1, a conventional external heating silica gel roller is usually heated by using an electromagnetic coil induction heating method, but a separate external heating device and a separate transmission mechanism are required to be disposed outside the silica gel roller to drive the silica gel roller to rotate during preheating so as to uniformly heat the silica gel roller, and during heating, an effective contact area between the silica gel roller and the heating device is generally only 1/3 at most, and generally, for example, the silica gel roller is preheated from a surface temperature of 20 ℃ to a surface temperature of 180 ℃ and is rotated for at least 2 hours, which still requires that the power of the heating device is maintained at least 15kw, which causes the silica gel roller to be preheated and consumes a large amount of energy. And electromagnetic heating silica gel roller 1 in this embodiment, for inside whole heating, need not set up solitary heating device outward, area of contact reaches 100%, and simultaneously when preheating, electromagnetic heating silica gel roller 1 rotates when also not needing, relatively speaking, has not only simplified the structure, has still shortened preheating time, has reduced the consumption of energy by a wide margin, helps reducing the manufacturing cost of enterprise.
Meanwhile, when the method is applied to the thermal transfer printing industry, the traditional external heating silica gel roller needs to reserve the area around 1/3 of the outer circumference of the silica gel roller for heating, otherwise, the silica gel roller is easy to have insufficient heat, the thermal transfer printing film is heated poorly, the effect of thermal transfer printing is affected, the contact area between the silica gel roller and the thermal transfer printing film is at most 1/4 of the outer circumference of the silica gel roller, and the transfer printing speed cannot be too high. And electromagnetic heating silica gel roller 1 in this embodiment, at the heat-transfer seal in-process, because electromagnetic heating silica gel roller 1 is interior heating, heating part need not to reserve outside for the area of contact of heat-transfer seal film and electromagnetic heating silica gel roller 1 can reach 2/3 of electromagnetic heating silica gel roller 1 outer periphery, for traditional external heating silica gel roller, the area of contact of heat-transfer seal film and silica gel roller has increased by a wide margin, the rate of heating of heat-transfer seal film has been promoted, make the heat-transfer seal speed accelerate by a wide margin, thereby effectively improve the production efficiency of enterprise.
In order to facilitate the installation of the metal roller 207 and the coil bracket 201, at least one support ring 203 is detachably arranged on the coil bracket 201, the support ring 203 can be a tetrafluoro support ring 203, meanwhile, the support ring 203 can be in an annular shape with an opening, the support ring is fixed at the opening through a bolt, the electromagnetic wire 202 is wound on the coil bracket 201, and the metal roller 207 abuts against the outer side of the support ring 203, so that the electromagnetic wire 202 is not extruded. During assembly, the silica gel layer 204 is coated outside the metal roller 207, the electromagnetic wire 202 is wound on the coil bracket 201, then the coil bracket 201 is fixed, then the coil bracket 201 is sent into the metal roller 207, then the electromagnetic wire and the coil bracket are connected by using the connecting flange 205, the electromagnetic heating silica gel roller 1 can be driven to rotate by connecting the motor for providing kinetic energy on the connecting flange 205 for heat transfer printing, for the connection of the electromagnetic wire 202 and a high-frequency power supply, a through hole for the thermocouple 206 to pass through can be arranged on the connecting flange 205 at one end, and a high-power conducting ring 208 is arranged on the connecting flange 205 at the other end.
Wherein, the reason that current interior heating silica gel roller can't use in the thermal transfer industry mainly lies in silica gel layer 204 thickness is too thick, leads to inside and outside difference in temperature big, can't reach the temperature demand of thermal transfer, and in order to overcome this problem, this embodiment provides a new processing method, and it specifically includes following step:
(1) coating an adhesive on the surface of the metal roller 207, and uniformly distributing silica gel on the surface of the metal roller 207 by using a rubber coating machine to form a seamless rubber layer;
(2) feeding the metal roller 207 into a vulcanizing machine for vulcanizing to obtain a silica gel roller;
(3) the electromagnetic wire 202 is wound on the coil bracket 201, and then the silica gel roller is sleeved outside the coil bracket 201.
The adhesive is also called adhesive, which can be imported adhesive with high temperature resistance of 260 ℃, and the sizing material used as the silica gel layer 204 can comprise the following components in parts by weight: 3 to 5 percent of nano aluminum nitride powder, 0.5 to 1.5 percent of vulcanizing agent and 90 to 96 percent of raw silica gel; the raw silica gel is modified by utilizing the nano aluminum nitride powder, so that the heat conduction effect of the raw silica gel is improved, and the internal and external temperature difference of the silica gel roller is further reduced.
When the electromagnetic heating silica gel roller 1 prepared by the method is heated, the electromagnetic wire 202 is electrified to heat the electromagnetic heating silica gel roller 1 integrally, taking the silica gel layer 204 with 2mm thickness modified by nano-scale aluminum nitride powder as an example, the heating power is 5kw, the surface temperature of the silica gel layer 204 is 20 ℃ to 180 ℃ from the surface temperature of the silica gel layer 204, generally only 40min is needed, and the temperature of the metal roller 207 does not exceed 230 ℃, so that the combination between the silica gel layer 204 and the metal roller 207 is not influenced, the electromagnetic heating silica gel roller 1 can meet the temperature requirement in the heat transfer process, the rapid heating of the electromagnetic heating silica gel roller 1 can be realized, the preheating time of the electromagnetic heating silica gel roller 1 is greatly reduced, and the energy loss is reduced.
For the rubber coating machine with improved processing method, please refer to fig. 5-8, which includes a first rubber coating roller 8; the second rubber coating roller 9 is arranged in parallel with the first rubber coating roller 8; the mounting flange 1002 is positioned between the first wrapping roller 8 and the second wrapping roller 9, 2 mounting flanges 1002 are symmetrically arranged, the metal rollers 207 are mounted on the mounting flange 1002, and the metal rollers 207 are parallel to the first wrapping roller 8; the adjusting device drives the first rubber coating roller 8 and the second rubber coating roller 9 to approach or separate from each other so as to adjust the thickness of the silica gel layer 204; and the first driving device drives the first rubber coating roller 8 and the second rubber coating roller 9 to rotate for rubber coating. In short, the rubber is extruded and coated outside the metal roller 207 through the first rubber coating roller 8 and the second rubber coating roller 9, so that the rubber coating is realized, and the thickness of the rubber coating is mainly controlled by an adjusting device.
Wherein, the first rubber coating roller 8 is a main grinding roller, when coating rubber, the raw rubber is put into the rubber coating roller 207 from the position between the first rubber coating roller 8 and the metal roller 207, the rubber is pressed on the metal roller 207 by the first rubber coating roller 8, at the moment, the metal roller 207 rotates along with the first rubber coating roller 8 and the second rubber coating roller 9 under the action of friction force, and the position where the rubber is adhered is rotated to the side contacting with the second rubber coating roller 9 to extrude, so that the thickness of the rubber coating layer 204 meets the requirement, therefore, the distance between the first rubber coating roller 8 and the metal roller 207 needs to be slightly larger than the distance between the second rubber coating roller 9 and the metal roller 207, which needs an adjusting device to respectively adjust the positions of the first rubber coating roller 8 and the second rubber coating roller 9, for this, the rubber coating machine also comprises a frame 7 and a wallboard 10 fixedly arranged at the top of the frame 7, the wallboard 10 is provided, in order to make the fixing effect of the wall panels 10 better and increase the stability of the wall panels 10, a bracing rod 1003 can be arranged between two wall panels 10, two ends of the bracing rod 1003 are respectively fixedly connected with 2 wall panels 10, and the number of the bracing rods 1003 can be set to be one or more, so long as the wall panels 10 can be stable and do not shake; the mounting flange 1002 is rotatably connected to the wall panel 10, for example, connected by using bearings, the wall panel 10 is provided with bearing slide rails 1001 located at two sides of the mounting flange 1002, two ends of the first rubber coating roller 8 are provided with first track bearings 1102 located in the bearing slide rails 1001, two ends of the second rubber coating roller 9 are provided with second track bearings 1106 located in the bearing slide rails 1001, that is, each wall panel 10 is provided with 2 bearing slide rails 1001, the first track bearings 1102 and the second track bearings 1106 reciprocate in the bearing slide rails 1001 under the control of an adjusting device, and the distance between the adjusting device and the metal roller 207 is adjusted, so as to control the thickness of the silicone rubber layer 204, the adjusting device comprises a first worm 1101 fixedly connected to the first track bearings 1102, a first worm wheel driving the first worm 1101 to reciprocate, a second worm 1107 fixedly connected to the second track bearings 1107, and a second worm wheel driving the second worm to reciprocate, a first link 1103 is arranged between 2 first worm gears, the first link 1103 and the first worm gears synchronously rotate, the first link and the first worm gears can be in key connection, a second link 1108 is arranged between 2 second worm gears, the second link 1108 and the second worm gears synchronously rotate, one ends of the first link 1103 and the second link 1108 are respectively provided with a second driving device for driving the first link 1103/the second link 1108 to rotate, the second driving device can be used for adjusting the rocking wheel 1105 or the reducing motor 1104 or the combination of the two, the first worm gear/the second worm gear can be rotated by starting the reducing motor 1104 or rocking the adjusting rocking wheel 1105, and therefore the position between the first rubber coating roller 8 and the second rubber coating roller 9 is adjusted, and the rotation is controlled by the motor. In addition, the adjusting device is also a combination of the screw rod and the sliding seat, but the structure of the mode is complex and the arrangement is more troublesome.
The first driving device can be divided into two driving devices, that is, the first wrapping roller 8 is connected with one first wrapping roller 9, but the rotating speeds of the first wrapping roller 8 and the second wrapping roller 9 are required to be consistent, so that the control is difficult, in this regard, one end of the first wrapping roller 8 and one end of the second wrapping roller 9 are respectively provided with a first chain wheel 701 and a second chain wheel 702, a third chain wheel 703 and a fourth chain wheel 704 are respectively arranged below the first chain wheel 701 and the second chain wheel 702, a connecting shaft 709 is arranged at the center of the third chain wheel 703 and the fourth chain wheel 704, the end part of the connecting shaft 709 is rotatably connected with a lever 707, the other end of the lever 707 is rotatably connected with the frame 7, one end of the lever 707 connected with the connecting shaft 709 is provided with a tensioning spring 708, the other end of the tensioning spring 708 is fixedly connected with the frame 7, the first driving device comprises a driving motor 12 and a fifth chain wheel, A chain 706 is sequentially engaged with the fourth sprocket 704, the fifth sprocket 705 and the third sprocket 703, and the first sprocket 701, the second sprocket 702, the fourth sprocket 704, the fifth sprocket 705 and the third sprocket 703 are all located at one end of the frame 7, and a double-chain 706 structure may be provided at the end to improve the transmission effect. When the device is used, the driving motor 12 drives the fifth chain wheel 705 to rotate, so that the chain 706 moves to drive the remaining chain wheels to rotate, the first rubber coating roller 8 and the second rubber coating roller 9 can synchronously rotate, when the positions of the first rubber coating roller 8 and the second rubber coating roller 9 are adjusted, the chain 706 can pull the third chain wheel 703 and the fourth chain wheel 704 to move, the third chain wheel 703 and the fourth chain wheel 704 receive the gathering action force of the tensioning spring 708, and the chain 706 can be tensioned regardless of the adjustment of the positions of the first rubber coating roller 8 and the second rubber coating roller 9, so that the transmission is effective.
During rubber coating, the first rubber coating roller 8 can be made to be a Teflon roller, the second rubber coating roller 9 is a chrome-plated roller, the rubber can be well adhered to the metal roller 207 through rolling of the Teflon roller during rubber coating, and the rubber layer can be free of bubbles through secondary rolling of the chrome-plated roller, so that the density of the rubber layer is high, the precision is high, the thickness of the prepared silica gel layer 204 is reduced, and raw materials are saved.
Specifically, the processing method after encapsulation by using the encapsulation machine is as follows:
1. forming a plurality of inclined holes on the outer surface of the metal roller 207, wherein the inclined angle of the inclined holes is 30-60 degrees, the diameter of the inclined holes is 0.5-1mm, and the depth of the inclined holes is 0.3-0.6mm, then coating an adhesive on the outer surface of the metal roller 207 and the inner parts of the inclined holes, drying the adhesive in the air, putting the dried adhesive into an oven, and heating to 100 ℃ and 130 ℃ for heat preservation for 1 h;
2. weighing nano aluminum nitride powder, a silica gel vulcanizing agent and raw silica gel, and scouring the raw silica gel in a rubber scouring machine, wherein the using amount of the raw silica gel is determined according to the size of an electromagnetic heating silica gel roller 1, for example, the raw silica gel amount required by an electromagnetic heating silica gel roller 1 (with the length of 1400mm and the diameter of 180mm) with the power of 5kw is about 7KG, while in the traditional process, the rubber coating of the silica gel roller with the size needs about 30KG of raw silica gel; the method comprises the following steps of (1) scouring in a rubber refining machine for 40-60min (original 50), fully and uniformly stirring aluminum nitride and a vulcanizing agent in raw rubber, then putting the scoured raw silica gel into an extruder, extruding 7KG silica gel for about 5min at one time, which is very quick, putting the rubber strip into the extruder again after extrusion, extruding 3 times, controlling the temperature of the silica gel extruded for the third time to be about 50-65 ℃, preferably 60 ℃, and then taking out a metal roller 207 with heat preservation from an oven and immediately putting the metal roller on a rubber coating machine;
3. adjusting the distance between a chrome-plated roller, a Teflon roller and a metal roller 207 according to the thickness to be encapsulated, starting a driving motor 12, putting a silica gel strip from an extruder into the space between the Teflon roller and the metal roller 207, adjusting the rotating speed of an encapsulating machine, and allowing the silica gel with temperature to easily and uniformly extend outwards on the surface of the hot metal roller 207 under the action of extrusion, so that the encapsulating work of the whole roller can be completed by about 5-7 mm; after the glue coating is finished, the first glue coating roller 8 and the second glue coating roller 9 are automatically moved outwards to set positions through a gear motor 1104 turbine adjusting device;
4. the flange shafts of the mounting flanges 1002 at the two ends of the metal roller 207 and the shaft of the chrome-plated roller are respectively provided with matched meshed gear discs, the metal roller 207 generates rotating power through the pair of gear discs, so that a closed high-temperature film and a high-temperature-resistant special rubber-coated cloth belt can be wound on the surface of a just-wrapped silica gel roller, the metal roller 207 can be taken down to be wound on other devices, and only the winding is time-saving and labor-saving; the silica gel roller wound with the high-temperature cloth belt is placed into a vulcanizing tank for secondary vulcanization, the temperature of the first-stage vulcanization is 140-160 ℃, the vulcanization time is 3h, the temperature of the second-stage vulcanization is 165-180 ℃, the vulcanization time is 3h, and after the vulcanization is finished, the silica gel roller is taken out after the vulcanization of the silica gel roller is finished, so that the vulcanization time is greatly saved, and the processing efficiency is improved;
5. the coil bracket 201 wound with the electromagnetic wire 202 is placed in the metal roller 207, the coil bracket and the metal roller are fixed through the connecting flange 205, and the bearing and the conducting ring 208 are arranged on the flange shaft of the connecting flange 205, so that the electromagnetic heating silica gel roller 1 is obtained.
The processing method improves the bonding strength of the silica gel layer 204 and the metal roller 207, so that the silica gel layer 204 and the metal roller 207 are not limited by the heat-resistant temperature of the adhesive when in use, and multiple tests show that the electromagnetic heating silica gel roller 1 prepared in the way can exceed the common maximum heat-resistant temperature 260 ℃ of the adhesive and can be used for a long time at 350 ℃, the problems of loosening and falling of the silica gel layer 204 can not occur, and the application range of the electromagnetic heating silica gel roller 1 is effectively widened; meanwhile, the processing method enables the silica gel to be uniformly distributed on the surface of the metal roller 207, realizes seamless coating, can effectively reduce the thickness of the silica gel layer 204, enables the thickness of the silica gel layer 204 to reach 0.5-4mm, effectively reduces the internal and external temperature difference of the electromagnetic heating silica gel roller 1, enables the electromagnetic heating silica gel roller 1 to be applied to the thermal transfer industry, can reduce the energy required by temperature rise, has less glue consumption and no flaws from inside to outside, can prolong the service life of the electromagnetic heating silica gel roller 1, can effectively reduce the cost of a thermal transfer machine from manufacturing to using, and enables the thermal transfer machine to be more suitable for the development requirements of enterprises.
In addition, as for the electromagnetic heating silica gel roller 1, the use thereof in thermal transfer printing is very convenient, and the use thereof can be combined with the existing thermal transfer printing machine, a specific thermal transfer printing machine using the electromagnetic heating silica gel roller 1 is provided, please refer to fig. 9, the thermal transfer printing machine comprises a material placing device 2, the electromagnetic heating silica gel roller 1, a conveying mechanism 3 and a film collecting device 4, the material placing device 2 is used for discharging the thermal transfer film to be used for thermal transfer printing, the material placing device 2 is generally a material placing roller, the thermal transfer film is wound on the material placing roller, the material placing roller rotates to discharge the thermal transfer film, wherein, a tensioning roller can be arranged according to the use requirement to tension the thermal transfer film to prevent the thermal transfer film from loosening in the thermal transfer printing process, and in order to make the object to be printed in the transfer printing process tightly fit with the thermal transfer printing film for transfer printing, a transfer printing bottom roller 5 opposite to the electromagnetic heating silica gel roller 1 can be arranged below the object to be printed, when in transfer printing, the electromagnetic heating silica gel roller 1 and the transfer printing bottom roller 5 synchronously rotate to enable the pattern on the heat transfer printing film to be effectively transferred to an object to be printed, the conveying mechanism 3 can be a heat-resistant conveying belt or a conveying roller, as long as the object to be printed is driven to move forwards for heat transfer printing, the film collecting device 4 is used for collecting the residual non-pattern film after transfer printing, the film collecting device can be a material collecting roller, the film is continuously rolled up along with the rotation of the material collecting device, of course, in order to improve the transfer printing effect, a film uncovering compression roller 6 is arranged between the material collecting roller and the electromagnetic heating silica gel roller 1, the contact position of the film uncovering compression roller 6 and the object to be printed and the contact position of the electromagnetic heating silica gel roller 1 and the object to be printed are located on the same horizontal height, so that the laminating effect of the film and the object to.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (10)
1. An electromagnetic heating silica gel roller, its characterized in that includes:
a coil carrier (201) made of a non-magnetic material;
a magnet wire (202) wound around the coil bracket (201), the magnet wire (202) being connected to a high-frequency power supply;
the silica gel roller is sleeved outside the coil bracket (201), the silica gel roller comprises an internal metal roller (207) and a silica gel layer (204) coated outside the metal roller (207), the thickness of the silica gel layer (204) is not more than 4mm, and the electromagnetic wire (202) is electrified to heat the silica gel roller.
2. The electromagnetic heating silica gel roller according to claim 1, characterized in that the coil carrier (201) is a hollow refractory cement carrier.
3. The electromagnetic heating silica gel roller according to claim 2, wherein the coil bracket (201) is detachably provided with at least one support ring (203), and the support ring (203) is a tetrafluoro support ring.
4. A processing method for preparing the electromagnetic heating silica gel roller according to any one of claims 1 to 3, which is characterized by comprising the following steps:
(1) coating an adhesive on the surface of the metal roller (207), and uniformly distributing silica gel on the surface of the metal roller (207) by using a rubber coating machine to form a seamless rubber layer;
(2) feeding the metal roller (207) into a vulcanizing machine for vulcanization to obtain a silica gel roller;
(3) the electromagnetic wire (202) is wound on the coil bracket (201), the support ring (203) is installed on the coil bracket (201), and then the silica gel roller sleeve is sleeved outside the coil bracket (201).
5. The machining method according to claim 4, characterized in that the silicone layer (204) comprises the following components in percentage by weight: 3 to 5 percent of nano aluminum nitride powder, 0.5 to 1.5 percent of vulcanizing agent and 90 to 96 percent of raw silica gel.
6. The process of claim 5, wherein said encapsulation machine comprises:
a first rubber coating roller (8);
the second rubber coating roller (9) is arranged in parallel with the first rubber coating roller (8);
the mounting flange (1002) is positioned between the first rubber coating roller (8) and the second rubber coating roller (9), 2 mounting flanges (1002) are symmetrically arranged, the metal rollers (207) are mounted on the mounting flange (1002), and the metal rollers (207) are parallel to the first rubber coating roller (8);
the adjusting device drives the first rubber coating roller (8) and the second rubber coating roller (9) to approach or separate from each other so as to adjust the thickness of the silica gel layer (204);
the first driving device drives the first rubber coating roller (8) and the second rubber coating roller (9) to rotate for rubber coating;
the first driving device drives the first rubber coating roller (8) and the second rubber coating roller (9) to rotate at the same speed to coat the silica gel outside the metal roller (207), and the metal roller (207) is coated along with the first rubber coating roller (8) and the second rubber coating roller (9) in a rotating matching mode under the action of friction force.
7. The processing method according to claim 6, wherein the glue coating machine further comprises a frame (7) and a wall plate (10) fixedly mounted at the top of the frame (7), the wall plate (10) is provided with 2 blocks, the mounting flange (1002) is rotatably connected with the wall plate (10), a bearing slide rail (1001) is arranged on the wall plate (10) and is positioned at two sides of the mounting flange (1002), a first track bearing (1102) positioned in the bearing slide rail (1001) is arranged at two ends of the first glue coating roller (8), a second track bearing (1106) positioned in the bearing slide rail (1001) is arranged at two ends of the second glue coating roller (9), the adjusting device comprises a first worm (1101) fixedly connected with the first track bearing (1102), a first worm gear driving the first worm (1101) to reciprocate, a second worm (1107) fixedly connected with the second track bearing (1106) and a second worm gear driving the second worm (1107) to reciprocate, a first link rod (1103) is arranged between the 2 first worm gears, a second link rod (1108) is arranged between the 2 second worm gears, and second driving devices for driving the first link rod (1103)/the second link rod (1108) to rotate are arranged at one ends of the first link rod (1103) and the second link rod (1108).
8. The processing method according to claim 7, wherein one end of the first rubber coating roller (8) and one end of the second rubber coating roller (9) are respectively provided with a first chain wheel (701) and a second chain wheel (702), a third chain wheel (703) and a fourth chain wheel (704) are respectively arranged below the first chain wheel (701) and the second chain wheel (702), a connecting shaft (709) is arranged in the middle of the third chain wheel (703) and the fourth chain wheel (704), the end part of the connecting shaft (709) is rotatably connected with a lever (707), the other end of the lever (707) is rotatably connected with the frame (7), one end of the lever (707) connected with the connecting shaft (709) is provided with a tension spring (708), the other end of the tension spring (708) is fixedly connected with the frame (7), the first driving device comprises a driving motor (12) and a fifth chain wheel (705) connected with an output shaft of the driving motor (12), a chain (706) is meshed on the first chain wheel (701), the second chain wheel (702), the fourth chain wheel (704), the fifth chain wheel (705) and the third chain wheel (703) in sequence.
9. The process according to claim 8, wherein the first wrapping roller (8) is a Teflon roller and the second wrapping roller (9) is a chrome-plated roller.
10. The process of claim 9, comprising the steps of:
(1) arranging a plurality of inclined holes on the outer surface of the metal roller (207), wherein the inclined angle of the inclined holes is 30-60 degrees, the diameter of the inclined holes is 0.5-1mm, and the depth of the inclined holes is 0.3-0.6mm, then coating an adhesive on the outer surface of the metal roller (207) and the inner parts of the inclined holes, putting the metal roller into an oven after drying, and heating to 100 ℃ and 130 ℃ for heat preservation for 1 h;
(2) weighing aluminum nitride nanopowder, a vulcanizing agent and raw silica gel, scouring in a rubber refining machine until all raw materials are uniformly mixed, putting the mixed material into an extruder, and extruding for 3 times to obtain a silica gel strip, wherein the material is extruded for the first 2 times and then put into the extruder again for extruding again, and the temperature of the silica gel strip extruded for the third time is 50-65 ℃;
(3) mounting the metal roller (207) subjected to heat preservation on a rubber coating machine through a mounting flange (1002), adjusting the positions of a first rubber coating roller (8) and a second rubber coating roller (9), and feeding a silica gel strip between the first rubber coating roller (8) and the metal roller (207) for seamless coating while the silica gel strip is hot;
(4) after the coating is finished, winding a closed high-temperature film and a high-temperature-resistant rubber-coated cloth tape outside the silica gel, then putting the silica gel into a vulcanizing machine for vulcanizing, wherein the vulcanizing is carried out in two sections, the first section is carried out at the temperature of 140-160 ℃, the vulcanizing time is 3h, the second section is carried out at the temperature of 165-180 ℃, the vulcanizing time is 3h, and the silica gel roller is obtained after the vulcanizing is finished
(5) The electromagnetic heating silica gel roller (1) can be obtained by winding the electromagnetic wire (202) on the coil bracket (201) and then sleeving the silica gel roller outside the coil bracket (201).
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Effective date of registration: 20231221 Address after: No. 100 Cuiping Street, Lizhou District, Guangyuan City, Sichuan Province, 628000 Patentee after: Zhang Kecai Address before: No.104, Jinqiang Road, East Industrial District, Xindu District, Chengdu, Sichuan 610000 Patentee before: Sichuan Junfa Xincai environmental protection equipment Co.,Ltd. |
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