CN113279279A - High temperature resistant controllable medium-high pressure ray apparatus - Google Patents
High temperature resistant controllable medium-high pressure ray apparatus Download PDFInfo
- Publication number
- CN113279279A CN113279279A CN202110478445.0A CN202110478445A CN113279279A CN 113279279 A CN113279279 A CN 113279279A CN 202110478445 A CN202110478445 A CN 202110478445A CN 113279279 A CN113279279 A CN 113279279A
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- Prior art keywords
- groups
- calender
- shaped plates
- sets
- fixedly connected
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Classifications
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
- D21G1/0073—Accessories for calenders
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
- D21G1/02—Rolls; Their bearings
- D21G1/0253—Heating or cooling the rolls; Regulating the temperature
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- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a high-temperature-resistant controllable medium-high pressure calender, which belongs to the technical field of calenders and comprises a base, a calender arranged above the base and a cooling mechanism surrounding the outer side of the calender; the cooling mechanism comprises two groups of U-shaped plates I which are arranged on two sides of the calender and are distributed oppositely and a group of U-shaped plates II which are arranged above the calender, and openings of the U-shaped plates II face the calender; the bottoms of the two groups of U-shaped plates are fixedly connected with the upper part of the base, and upward extension lines of the two groups of U-shaped plates are respectively and vertically intersected with extension lines at two ends of the two groups of U-shaped plates; the technical problem to be solved by the invention is to provide a high-temperature-resistant controllable medium-high calender, when the calender works, a cooling mechanism is controlled to start, so that the calender can be cooled in all directions, the surface temperature of the calender is reduced, the purpose of high-temperature resistance of the calender is realized, and the service life of the calender is prolonged.
Description
Technical Field
The invention belongs to the field of calenders, and particularly relates to a high-temperature-resistant controllable medium-high calender.
Background
The calender is a device for improving the paper surface glossiness, is one of the calendering and glazing processes, after the surface of a printed product is coated, a glazing layer is dried, if the smoothness and the glossiness of a glazing coating are required to be improved again, the glazing can be calendered by the calender, the glossiness of glazing is about 65-85 percent generally, and the glossiness of glazing can reach more than 90-95 percent after calendering.
Current calender can produce high temperature when using, and the time is one long, can cause the harm to the calender body, and then influences the life of calender, consequently at calender normal operating time, need reduce the temperature on calender surface, and then realize the protection to the calender.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, an embodiment of the present invention provides a high temperature resistant controllable high and high calender.
In order to solve the technical problems, the invention provides the following technical scheme:
a high-temperature-resistant controllable medium-high pressure calender comprises a base, a calender arranged above the base and a cooling mechanism surrounding the outer side of the calender; the cooling mechanism comprises two groups of U-shaped plates I which are arranged on two sides of the calender and are distributed oppositely and a group of U-shaped plates II which are arranged above the calender, and openings of the U-shaped plates II face the calender; the bottoms of the two groups of U-shaped plates are fixedly connected with the upper part of the base, upward extension lines of the two groups of U-shaped plates are respectively and vertically intersected with extension lines at two ends of the two groups of U-shaped plates, the upper parts of the two groups of U-shaped plates are respectively and fixedly connected with two ends of the two groups of U-shaped plates through the three U-shaped plates, the U-shaped openings of the two groups of U-shaped plates, the three U-shaped plates and the two U-shaped plates are correspondingly communicated, rollers are arranged in the two groups of U-shaped plates in a sliding manner, a sliding rod movably penetrates through the inside of the roller, two groups of first sliding grooves are formed in the first U-shaped plates, two ends of the two groups of sliding rods respectively extend to the inner parts of the corresponding first sliding grooves, two groups of second sliding grooves which respectively correspond to the two groups of first sliding grooves are formed in the third U-shaped plates, two groups of third sliding grooves are formed in the U-shaped plate II, and two ends of the two groups of third sliding grooves are respectively communicated with the corresponding second sliding grooves; two sets of the equal fixed cover in the slide bar outside is equipped with the lagging, and is two sets of one relative one side of U template all is provided with the fixed plate, and is two sets of the correspondence is kept away from to the lagging slide bar one side all with correspond fixed plate fixed connection, it is two sets of the equal fixed mounting in one relative side of fixed plate has motor one, and is two sets of the equal fixed mounting of a motor output has fan one, two inside being provided with of U template is used for driving two sets ofly the actuating mechanism that the fixed plate removed.
As a further improvement of the invention: the driving mechanism comprises a second motor and a rotating rod, the second motor is fixedly installed inside the second U-shaped plate, the rotating rod is fixedly installed at the output end of the second motor, two groups of winding wires are arranged on the outer side of the rotating rod in a winding mode, one ends of the two groups of winding wires are fixedly connected with the rotating rod, and the other ends of the two groups of winding wires correspond to the fixed plate and are fixedly connected with the fixed plate respectively.
As a further improvement of the invention: two groups of rollers are arranged above the calender, rotating shafts are fixedly arranged in the two groups of rollers in a penetrating mode, supporting plates are arranged at two ends of the two groups of rotating shafts, one ends of the four groups of supporting plates are fixedly connected with the calender, two ends of the two groups of rotating shafts are respectively rotatably connected with the corresponding supporting plates, and the two groups of winding wires are respectively attached to the outer sides of the corresponding rollers.
As a further improvement of the invention: the base is internally provided with a cavity, a bottom plate is arranged in the cavity, a through hole communicated with the cavity is formed in the upper portion of the base, a box body is movably arranged in the through hole, the bottom of the box body extends to the inside of the cavity and is fixedly connected with the upper portion of the bottom plate, the bottom of the calender is fixedly connected with the upper portion of the box body, and the upper portion of the bottom plate and the lower portion of the bottom plate are connected with the inner wall of the cavity through a plurality of groups of springs.
As a still further improvement of the invention: the side wall of the bottom plate is connected with the inner wall of the cavity through a plurality of groups of second springs.
As a still further improvement of the invention: the box body is characterized in that a plurality of groups of motors are fixedly mounted at the bottom of the inner side of the box body, a plurality of groups of motor output ends are fixedly connected with a fan II, and a plurality of groups of air holes are formed in the upper portion of the box body.
As a still further improvement of the invention: the air return device also comprises a plurality of groups of air return holes arranged on the side wall of the box body.
Compared with the prior art, the invention has the beneficial effects that:
the technical problem to be solved by the invention is to provide a high-temperature-resistant controllable medium-high calender, when the calender works, a cooling mechanism is controlled to start, so that the calender can be cooled in all directions, the surface temperature of the calender is reduced, the purpose of high-temperature resistance of the calender is realized, and the service life of the calender is prolonged.
Drawings
FIG. 1 is a schematic view of a high temperature resistant controlled crown calender;
FIG. 2 is an enlarged view of area A of FIG. 1;
FIG. 3 is an enlarged view of the area B in FIG. 1;
FIG. 4 is a schematic view of the connection of a roll to a calender in a high temperature resistant controlled crown calender;
FIG. 5 is a schematic view of the connection of a roll and a mantle plate in a high temperature resistant controlled high calender;
in the figure: 1-return air hole, 2-box, 3-calender, 4-U-shaped plate II, 5-motor II, 6-rotating rod, 7-chute III, 8-winding, 9-U-shaped plate II, 10-chute II, 11-roller, 12-supporting plate, 13-fan I, 14-roller, 15-fixing plate, 16-motor I, 17-chute I, 18-U-shaped plate I, 19-base, 20-spring II, 21-spring I, 22-cavity, 23-bottom plate, 24-motor, 25-fan II, 26-through hole, 27-rotating shaft, 28-sleeve plate and 29-sliding rod.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
Example 1
Referring to fig. 1-5, the embodiment provides a high temperature resistant controllable medium and high pressure calender, which includes a base 19, a calender 3 disposed above the base 19, and a cooling mechanism surrounding the calender 3; the cooling mechanism comprises two groups of U-shaped plates 18 which are arranged on two sides of the calender 3 and are distributed oppositely and a group of U-shaped plates 4 arranged above the calender 3, and openings of the U-shaped plates 4 face the calender 3; the bottoms of the two groups of the first U-shaped plates 18 are fixedly connected with the upper part of the base 19, the upward extension lines of the two groups of the first U-shaped plates 18 are respectively and vertically intersected with the extension lines of the two ends of the second U-shaped plates 4, the upper parts of the two groups of the first U-shaped plates 18 are respectively and fixedly connected with the two ends of the second U-shaped plates 4 through the third U-shaped plates 9, the two groups of the first U-shaped plates 18, the two groups of the third U-shaped plates 9 and the U-shaped openings of the second U-shaped plates 4 are correspondingly communicated, rollers 14 are respectively and slidably arranged in the two groups of the first U-shaped plates 18, sliding rods 29 are movably penetrated in the rollers 14, two groups of the first U-shaped plates 18 are respectively provided with two groups of sliding grooves 17, the two groups of the sliding rods 29 are respectively extended to correspond to the insides of the first sliding grooves 17, and two groups of the sliding grooves 10 which respectively correspond to the two groups of the first sliding grooves 17 are respectively arranged in the two groups of the three U-shaped plates 9, two groups of sliding grooves III 7 are formed in the U-shaped plate II 4, and two ends of the two groups of sliding grooves III 7 are respectively communicated with the corresponding sliding grooves II 10; two sets of slide bar 29 outside is equal fixed cover and is equipped with lagging 28, and is two sets of the relative one side of U template 18 all is provided with fixed plate 15, and is two sets of lagging 28 is kept away from and is corresponded slide bar 29 one side all with correspond fixed plate 15 fixed connection, it is two sets of the equal fixed mounting in the relative one side of fixed plate 15 has motor 16, and is two sets of 16 equal fixed mounting of output of motor has fan 13, two 4 inside being provided with of U template are used for driving two sets ofly the actuating mechanism that fixed plate 15 removed.
When the calender 3 works, high-temperature heat is emitted, the two groups of motors I16 are controlled to start, and the two groups of fans I13 are driven to rotate, so that air can be blown to the calender 3, the heat emission is accelerated, and the surface temperature of the calender 3 is reduced; the control driving mechanism is started to drive the two groups of fixing plates 15 to move, the two groups of fixing plates 15 drive the corresponding sliding rods 29 to sequentially slide in the first sliding grooves 17, the second sliding grooves 10 and the third sliding grooves 7 through the corresponding sleeve plates 28, meanwhile, the rollers 14 sequentially roll in the first U-shaped plates 18, the third U-shaped plates 9 and the second U-shaped plates 4, and then the first two groups of fans 13 are driven to move, all-directional cooling and accelerated heat dissipation of the calender 3 are achieved, the temperature of the calender 3 during working is reduced, damage to the calender 3 due to high temperature generated by the calender 3 during working is avoided, and the service life of the calender 3 is prolonged.
Actuating mechanism includes fixed mounting and is in the inside two 5 and the fixed mounting of motor of two 4U templates are in the bull stick 6 of two 5 output ends of motor, 6 outsides of bull stick are around being equipped with two sets of wire windings 8, and are two sets of 8 one end of wire winding with 6 fixed connection of bull stick, it is two sets of 8 other ends of wire winding respectively with correspond fixed plate 15 fixed connection.
The second control motor 5 is started to drive the rotating rod 6 to rotate, so that the two groups of winding wires 8 rotate and wind along the rotating rod 6, and the purpose of pulling the two groups of fixing plates 15 is achieved.
Two groups of rollers 11 are arranged above the calender 3, rotating shafts 27 are fixedly arranged in the two groups of rollers 11 in a penetrating manner, supporting plates 12 are arranged at two ends of the two groups of rotating shafts 27, one ends of the four groups of supporting plates 12 are fixedly connected with the calender 3, two ends of the two groups of rotating shafts 27 are respectively rotatably connected with the corresponding supporting plates 12, and the two groups of winding wires 8 are respectively attached to the outer sides of the corresponding rollers 11.
When bull stick 6 rotates, drive two sets of wire windings 8 and wind along bull stick 6, two sets of wire windings 8 remove and drive along corresponding cylinder 11 and correspond cylinder 11 and rotate, and then can assist two sets of wire windings 8 to remove, have protected two sets of wire windings 8, have improved two sets of wire winding 8's life.
The calender is characterized in that a cavity 22 is formed in the base 19, a bottom plate 23 is arranged in the cavity 22, a through hole 26 communicated with the cavity 22 is formed in the upper portion of the base 19, a box body 2 is movably arranged in the through hole 26, the bottom of the box body 2 extends into the cavity 22 and is fixedly connected with the upper portion of the bottom plate 23, the bottom of the calender 3 is fixedly connected with the upper portion of the box body 2, and the upper portion of the bottom plate 23 and the lower portion of the bottom plate 23 are connected with the inner wall of the cavity 22 through a plurality of groups of springs 21.
When the calender 3 works, vibration is generated, the calender 3 drives the box body 2 and the bottom plate 23 to vibrate, and when the bottom plate 23 vibrates, the calender 3 vibrates up and down through a plurality of groups of springs 21 to buffer.
The side wall of the bottom plate 23 is connected with the inner wall of the cavity 22 through a plurality of groups of second springs 20.
When the calender 3 works, the left and right shaking is generated, the bottom plate 23 buffers the shaking of the calender 3 through the plurality of groups of the second springs 20, and the stability of the calender 3 in working is ensured.
A plurality of groups of motors 24 are fixedly mounted at the bottom of the inner side of the box body 2, a plurality of groups of fans 25 are fixedly connected to the output ends of the motors 24, and a plurality of groups of air holes are formed in the upper portion of the box body 2.
And controlling the plurality of groups of motors 24 to start to drive the corresponding second fans 25 to start, so that the wind blows out along the plurality of groups of wind holes and drives the heat on the calender 3 to be dissipated, and further realizing the purpose of secondary cooling.
Example 2
Referring to fig. 1, a high temperature resistant, controllable medium-high pressure optical machine, in this embodiment, compared with embodiment 1, further includes a plurality of sets of air return holes 1 formed in a side wall of the box body 2.
When the plurality of groups of second fans 25 work, outside air flows in through the plurality of groups of air holes 1, so that the purpose of air return is realized, and the air flow is accelerated.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (7)
1. A high temperature resistant controlled crown calender, characterized by comprising a base (19), a calender (3) arranged above the base (19) and a cooling mechanism surrounding the outside of the calender (3); the cooling mechanism comprises two groups of U-shaped plates (18) which are arranged on two sides of the calender (3) and distributed oppositely and a group of U-shaped plates (4) which are arranged above the calender (3), and openings of the U-shaped plates (4) face the calender (3); the bottoms of the two groups of U-shaped plates I (18) are fixedly connected with the upper part of the base (19), the upward extension lines of the two groups of U-shaped plates I (18) are respectively and vertically intersected with the extension lines at the two ends of the U-shaped plate II (4), the upper parts of the two groups of U-shaped plates I (18) are respectively and fixedly connected with the two ends of the U-shaped plate II (4) through U-shaped plates III (9), the two groups of U-shaped plates I (18), the two groups of U-shaped plates III (9) and the U-shaped opening of the U-shaped plate II (4) are respectively and correspondingly communicated, rollers (14) are respectively arranged in the two groups of U-shaped plates I (18) in a sliding manner, sliding rods (29) are movably penetrated in the rollers (14), two groups of sliding grooves I (17) are respectively arranged in the two groups of U-shaped plates I (18), and the two ends of the two groups of the sliding rods (29) respectively extend to correspond to the inner parts of the sliding grooves I (17), two groups of sliding grooves II (10) which respectively correspond to the two groups of sliding grooves I (17) are formed in the two groups of U-shaped plates III (9), two groups of sliding grooves III (7) are formed in the U-shaped plates II (4), and two ends of the two groups of sliding grooves III (7) are respectively communicated with the corresponding sliding grooves II (10); it is two sets of slide bar (29) the equal fixed cover in outside is equipped with lagging (28), and is two sets of U template (18) relative one side all is provided with fixed plate (15), and is two sets of lagging (28) is kept away from and is corresponded slide bar (29) one side all with correspond fixed plate (15) fixed connection, it is two sets of the equal fixed mounting in one side of fixed plate (15) is motor (16), and is two sets of the equal fixed mounting of motor (16) output has fan (13), U template two (4) inside is provided with and is used for driving two sets ofly the actuating mechanism that fixed plate (15) removed.
2. A high temperature resistant controllable high calender according to claim 1, characterized in that the driving mechanism comprises a second motor (5) fixedly installed inside the second U-shaped plate (4) and a rotating rod (6) fixedly installed at the output end of the second motor (5), two groups of windings (8) are wound outside the rotating rod (6), one ends of the two groups of windings (8) are fixedly connected with the rotating rod (6), and the other ends of the two groups of windings (8) are respectively fixedly connected with the corresponding fixing plates (15).
3. A high temperature resistant controllable crown calender according to claim 2, characterized in that two sets of drums (11) are arranged above the calender (3), a rotating shaft (27) is fixedly penetrated in each of the two sets of drums (11), supporting plates (12) are arranged at both ends of each of the two sets of rotating shafts (27), one end of each of the four sets of supporting plates (12) is fixedly connected with the calender (3), both ends of each of the two sets of rotating shafts (27) are rotatably connected with the corresponding supporting plate (12), and two sets of windings (8) are respectively attached to the outer sides of the corresponding drums (11).
4. A high temperature resistant controllable medium high calender according to any one of claims 1-3, characterised in that a cavity (22) is provided in the base (19), a floor (23) is provided in the cavity (22), a through hole (26) communicating with the cavity (22) is provided above the base (19), a case (2) is movably provided in the through hole (26), the bottom of the case (2) extends into the cavity (22) and is fixedly connected with the upper side of the floor (23), the bottom of the calender (3) is fixedly connected with the upper side of the case (2), and the upper side of the floor (23) and the lower side of the floor (23) are connected with the inner wall of the cavity (22) through a plurality of groups of first springs (21).
5. A high temperature resistant controlled high calender according to claim 4, characterised in that the side wall of the bottom plate (23) is connected with the inner wall of the cavity (22) by several sets of second springs (20).
6. A high temperature resistant controllable high-high calender as claimed in claim 5, characterized in that a plurality of groups of motors (24) are fixedly installed at the bottom of the inner side of the case (2), a plurality of groups of second fans (25) are fixedly connected to the output ends of the motors (24), and a plurality of groups of wind holes are opened above the case (2).
7. A high temperature resistant controlled high calender according to claim 6, characterised in that it also comprises several groups of return air holes (1) made in the side wall of the box (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110478445.0A CN113279279A (en) | 2021-04-30 | 2021-04-30 | High temperature resistant controllable medium-high pressure ray apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110478445.0A CN113279279A (en) | 2021-04-30 | 2021-04-30 | High temperature resistant controllable medium-high pressure ray apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN113279279A true CN113279279A (en) | 2021-08-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110478445.0A Withdrawn CN113279279A (en) | 2021-04-30 | 2021-04-30 | High temperature resistant controllable medium-high pressure ray apparatus |
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| Country | Link |
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| CN (1) | CN113279279A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0541457A1 (en) * | 1991-11-04 | 1993-05-12 | Eastman Kodak Company | Apparatus and method for the on-line control of the filler content of a paper product |
| US6193846B1 (en) * | 1998-02-09 | 2001-02-27 | Valmet Corporation | Method and a system in a paper web finishing machine of equivalent |
| CN205347738U (en) * | 2016-01-21 | 2016-06-29 | 东阳北极秀服装有限公司 | Printing and dyeing cooling device |
| CN208219289U (en) * | 2018-05-29 | 2018-12-11 | 枣庄市汉森造纸数控设备有限公司 | A kind of crown control calender pressure roller heating device |
| CN208674698U (en) * | 2018-07-05 | 2019-03-29 | 马昌明 | A kind of heat radiating type power equipment pedestal |
| CN210257138U (en) * | 2019-06-25 | 2020-04-07 | 安徽佰尧电子科技有限公司 | Cooling device for automobile part machining process |
| CN211171418U (en) * | 2019-11-22 | 2020-08-04 | 湖北应强环保科技有限公司 | Papermaking calender |
| CN111668969A (en) * | 2020-06-24 | 2020-09-15 | 新沂市北沟镇福利厂 | High heat dissipation type sewing machine motor shell |
| CN211829887U (en) * | 2020-05-14 | 2020-10-30 | 王桂秋 | Shell structure of American transformer substation |
| CN212906181U (en) * | 2020-08-10 | 2021-04-06 | 漳州市创锐信息科技有限公司 | Computer heat dissipation installation mechanism |
-
2021
- 2021-04-30 CN CN202110478445.0A patent/CN113279279A/en not_active Withdrawn
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0541457A1 (en) * | 1991-11-04 | 1993-05-12 | Eastman Kodak Company | Apparatus and method for the on-line control of the filler content of a paper product |
| US6193846B1 (en) * | 1998-02-09 | 2001-02-27 | Valmet Corporation | Method and a system in a paper web finishing machine of equivalent |
| CN205347738U (en) * | 2016-01-21 | 2016-06-29 | 东阳北极秀服装有限公司 | Printing and dyeing cooling device |
| CN208219289U (en) * | 2018-05-29 | 2018-12-11 | 枣庄市汉森造纸数控设备有限公司 | A kind of crown control calender pressure roller heating device |
| CN208674698U (en) * | 2018-07-05 | 2019-03-29 | 马昌明 | A kind of heat radiating type power equipment pedestal |
| CN210257138U (en) * | 2019-06-25 | 2020-04-07 | 安徽佰尧电子科技有限公司 | Cooling device for automobile part machining process |
| CN211171418U (en) * | 2019-11-22 | 2020-08-04 | 湖北应强环保科技有限公司 | Papermaking calender |
| CN211829887U (en) * | 2020-05-14 | 2020-10-30 | 王桂秋 | Shell structure of American transformer substation |
| CN111668969A (en) * | 2020-06-24 | 2020-09-15 | 新沂市北沟镇福利厂 | High heat dissipation type sewing machine motor shell |
| CN212906181U (en) * | 2020-08-10 | 2021-04-06 | 漳州市创锐信息科技有限公司 | Computer heat dissipation installation mechanism |
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Application publication date: 20210820 |