阅读说明：本技术 一种石墨烯散热膜真空压延装置 (Graphene heat dissipation film vacuum calendering device ) 是由 张冬 于 2020-07-20 设计创作，主要内容包括：本发明公开了一种石墨烯散热膜真空压延装置,本发明通过压延结构解决了上、下辊之间距离无法调节的问题；通过主支撑杆A、副支撑杆A、第三支撑杆、第四支撑杆形成连杆机构,利用主电动推杆、副电动推杆的伸缩提供动力,带动上压辊与下压辊之间的距离发生变化；通过主动齿轮、第一传动齿轮、第二传动齿轮、第三传动齿轮、第四传动齿轮、第五传动齿轮的齿轮传动,配合连杆机构的工作,保证压延工作的顺利进行。通过第一过渡机、第二过渡机配合压延结构进行运输,避免进料输送机、出料输送机与压延结构因高度差而影响石墨烯散热膜的运输；通过真空系统抽出壳体内的空气,使壳体内的气压小于外界气压,从而将石墨烯散热膜内的气泡顺利压出。(The invention discloses a graphene heat dissipation film vacuum calendering device, which solves the problem that the distance between an upper roller and a lower roller cannot be adjusted through a calendering structure; a connecting rod mechanism is formed by the main supporting rod A, the auxiliary supporting rod A, the third supporting rod and the fourth supporting rod, and the distance between the upper compression roller and the lower compression roller is driven to change by utilizing the power provided by the extension and retraction of the main electric push rod and the auxiliary electric push rod; the smooth rolling operation is ensured by the gear transmission of the driving gear, the first transmission gear, the second transmission gear, the third transmission gear, the fourth transmission gear and the fifth transmission gear in cooperation with the work of the connecting rod mechanism. The first transition machine and the second transition machine are matched with the rolling structure for transportation, so that the influence of the height difference between the feeding conveyor, the discharging conveyor and the rolling structure on the transportation of the graphene heat dissipation film is avoided; air in the shell is pumped out through the vacuum system, so that the air pressure in the shell is smaller than the external air pressure, and bubbles in the graphene heat dissipation film are smoothly extruded out.)

1. The graphene heat dissipation film vacuum calendering device is characterized by comprising a shell (1), a vacuum system (2) which is communicated with the shell (1) and used for vacuumizing the shell (1), a calendering structure (3) installed in the shell (1), a feeding conveyor (4) and a discharging conveyor (5) which are installed in the shell (1) and respectively located in the shell (1), a first transition machine (6) which is installed in the shell (1) and located between the feeding conveyor (4) and the calendering structure (3) and used for transition, and a second transition machine (7) which is installed in the shell (1) and located between the discharging conveyor (5) and the calendering structure (3) and used for transition;

The rolling structure (3) comprises a plurality of rolling assemblies which are arranged in the shell (1) and are uniformly distributed along the X direction;

the rolling component comprises a first transmission shaft (12) which is rotatably arranged on the shell (1) through rolling bearings at two ends, a second transmission shaft (13) which is rotatably arranged on the shell (1) through rolling bearings at two ends and is positioned above the first transmission shaft (12) and is vertically symmetrical with the first transmission shaft (12), a driving gear (45) arranged on the second transmission shaft (13), a main support shaft A (14) and a main support shaft B which are rotatably arranged on the first transmission shaft (12) through rolling bearings at one ends and are distributed along the central axis direction of the first transmission shaft (12), an auxiliary support shaft A (15) and an auxiliary support shaft B which are rotatably arranged on the second transmission shaft (13) through rolling bearings at one ends and are distributed along the central axis direction of the second transmission shaft (13), wherein the main support shaft A (14) and the auxiliary support shaft A (15) are vertically symmetrical, and the main support shaft B and the auxiliary support shaft B, a main electric push rod (17) which is hinged with the bottom of the shell (1) and a telescopic rod is hinged with a main support shaft A (14), an auxiliary electric push rod (18) which is hinged with the top of the shell (1) and a telescopic rod is hinged with an auxiliary support shaft A (15), a rotating shaft A (22) which is rotatably installed on the main support shaft A (14), a rotating shaft B which is rotatably installed on the main support shaft B and is coaxially arranged with the rotating shaft A (22), a lower press roll (19) with one end installed on the rotating shaft A (22) and the other end installed on the rotating shaft B, a first transmission gear (20) which is installed on the rotating shaft A (22), a second transmission gear (21) which is rotatably installed on the auxiliary support shaft A, a rotating shaft C which is rotatably installed on the auxiliary support shaft A (15), a rotating shaft D which is rotatably installed on the auxiliary support shaft B and is coaxially arranged with the rotating shaft C, a, a third transmission gear (24) which is arranged on the rotating shaft C and is meshed with the second transmission gear (21), a third supporting rod (25) of which one end is hinged on the auxiliary supporting shaft A (15) and the hinged point is coaxially arranged with the rotating shaft C, a fourth transmission gear (26) which is rotatably arranged at the central position of the third supporting rod (25) and is meshed with the third transmission gear (24), a fifth transmission gear (27) which is rotatably arranged on the third supporting rod (25) and is simultaneously meshed with the fourth transmission gear (26) and the first transmission gear (20), a fourth supporting rod (28) of which one end is hinged on the third supporting rod (25) and the hinged point is coaxially arranged with the fifth transmission gear (27), and one end of the fourth supporting rod (28) far away from the third supporting rod (25) is hinged on the main supporting rod A and is coaxially arranged with the first transmission gear (20);

The rolling structure (3) further comprises a belt pulley (29) arranged on the second transmission shaft (13), an annular belt (30) in friction transmission with the belt pulleys (29), and a rolling motor (31) arranged on the shell (1) and provided with an output shaft arranged on one of the second transmission shafts (13).

2. The vacuum rolling device for the graphene heat dissipation film according to claim 1, wherein the first transition machine (6) and the second transition machine (7) are symmetrical left and right with respect to the rolled structure (3);

the first transition machine (6) comprises a driving shaft (32) which is rotatably arranged in the shell (1) through a rolling bearing, a worm wheel (33) which is arranged on the driving shaft (32), a worm (34) which is rotatably arranged on the shell (1) through a rolling bearing and is meshed with the worm wheel (33), a transition motor (35) which is arranged on the shell (1) and has an output shaft arranged on the worm (34), a pair of fixing plates (36) with one ends arranged on the driving shaft (32) and positioned at two ends of the driving shaft (32), a plurality of transition shafts (37) with two ends rotatably arranged on the fixing plates (36) through the rolling bearing and evenly distributed along the length direction of the fixing plates (36), a roller (38) arranged on the transition shafts (37), and a chain wheel (39) arranged at one end of the transition shafts (37), a chain engaged with a plurality of chain wheels (39) at the same time, a transmission motor (40) installed on the fixing plate (36) and an output shaft installed on one of the transition shafts (37).

3. The graphene heat dissipation film vacuum rolling device according to claim 1, wherein the vacuum system (2) comprises a vacuum pump (41), a pipeline with one end communicated with the housing (1) and the other end communicated with the vacuum pump (41), an electromagnetic valve installed on the pipeline, and a vacuum sensor (44) installed in the housing (1).

4. The graphene heat dissipation film vacuum calendaring device according to claim 1, wherein the feeding conveyor (4) is the same as the discharging conveyor (5) and is one of a belt conveyor and a roller conveyor.

5. The vacuum calendaring device for the graphene heat dissipation film according to claim 1, 2, 3 or 4, wherein a feed inlet (8) is formed at one end of the shell (1) close to the feed conveyor (4), and a discharge outlet (9) is formed at one end of the shell (1) close to the discharge conveyor (5); the front side and the rear side of the shell (1) are both provided with perspective windows (10) for observing the rolling condition; an access door (11) for repairing is arranged on the front end surface of the shell (1).

Technical Field

The invention particularly relates to a vacuum calendering device for a graphene heat dissipation film.

Background

Graphene is a two-dimensional crystal composed of carbon atoms with only one atomic thickness, and the main preparation sources are graphite and methane. The graphene is an ultrathin material with high toughness, has high breaking strength, and sings 200 times of the original material; the elasticity is good, the stretching amplitude exceeds 20 percent, and the conductivity is excellent.

The graphene heat dissipation film with the heat conduction capability becomes a novel heat conduction and heat dissipation material in recent years, and has been widely applied to many fields such as electronics, communication, illumination, aviation, national defense and military industry and the like. Generally all will pass through calendering processing after graphite alkene heat dissipation membrane processing is accomplished, two rolls about current calendering device generally includes, and two or four synchronous machine give upper and lower two rolls input pure torque transmission power respectively, but current calendering device has following problem: firstly, the original graphene film is in a loose state after being sintered, air is exhausted by a calendering device only depending on pressure, and air bubbles can remain in the graphene heat dissipation film to influence the product performance; and secondly, the distance between the upper pressure roller and the lower pressure roller cannot be adjusted, and the distance between the upper pressure roller and the lower pressure roller is very small due to the thin thickness of the graphene heat dissipation film, so that the maintenance of a rolling device is not facilitated, and the device is not suitable for rolling other materials.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides a graphene heat dissipation film vacuum rolling device.

The technical scheme for solving the problems comprises the following steps: a graphene heat dissipation film vacuum calendering device comprises a shell, a vacuum system, a calendering structure, a feeding conveyor and a discharging conveyor, wherein the vacuum system is communicated with the shell and used for vacuumizing the shell;

the rolling structure comprises a plurality of rolling assemblies which are arranged in the shell and are uniformly distributed along the X direction;

the rolling component comprises a first transmission shaft, a second transmission shaft, a driving gear, a main support shaft A, a main support shaft B, an auxiliary support shaft A and an auxiliary support shaft B, wherein two ends of the first transmission shaft are rotatably arranged on the shell through rolling bearings, two ends of the second transmission shaft are vertically symmetrical with the first transmission shaft, one end of the main support shaft A is rotatably arranged on the first transmission shaft through the rolling bearings and is distributed along the central axis direction of the first transmission shaft, one end of the auxiliary support shaft A is rotatably arranged on the second transmission shaft through the rolling bearings and is distributed along the central axis direction of the second transmission shaft, the main support shaft A and the auxiliary support shaft A are vertically symmetrical, the main support shaft B and the auxiliary support shaft B are vertically symmetrical, a main electric push rod is hinged with the bottom of the shell and is hinged with the main support shaft A through a telescopic rod, and an auxiliary electric push rod is, a rotating shaft A rotatably mounted on the main supporting shaft A, a rotating shaft B rotatably mounted on the main supporting shaft B and coaxially arranged with the rotating shaft A, a lower press roller with one end mounted on the rotating shaft A and the other end mounted on the rotating shaft B, a first transmission gear mounted on the rotating shaft A, a second transmission gear rotatably mounted on the auxiliary supporting shaft A, a rotating shaft C rotatably mounted on the auxiliary supporting shaft A, a rotating shaft D rotatably mounted on the auxiliary supporting shaft B and coaxially arranged with the rotating shaft C, an upper press roller with one end mounted on the rotating shaft C and the other end mounted on the rotating shaft D, a third transmission gear mounted on the rotating shaft C and meshed with the second transmission gear, a third supporting rod with one end hinged on the auxiliary supporting shaft A and coaxially arranged with the rotating shaft C, a fourth transmission gear rotatably mounted at the center of the third supporting rod and meshed with the third transmission gear, a fourth transmission gear rotatably mounted on the third supporting rod and, One end of the fourth support rod, which is far away from the third support rod, is hinged on the main support rod A, and the hinged point is coaxially arranged with the first transmission gear;

The calendering structure also comprises a belt pulley arranged on the second transmission shaft, an annular belt which is in friction transmission with the belt pulleys, and a calendering motor which is arranged on the shell and an output shaft of which is arranged on one of the second transmission shafts.

Further, the first transition machine and the second transition machine are symmetrical left and right relative to the rolling structure;

first transition machine includes and rotates the drive shaft of installing in the casing through antifriction bearing, install the worm wheel in the drive shaft, rotate through antifriction bearing install on the casing and with worm wheel meshed worm, install on the casing and the output shaft installs the transition motor on the worm, one end is installed on the drive shaft and is located the a pair of fixed plate at drive shaft both ends, both ends rotate through antifriction bearing install on the fixed plate and along a plurality of transition axles of fixed plate length direction evenly distributed, install the epaxial cylinder of transition, install the sprocket in transition axle one end, simultaneously with the chain of a plurality of sprocket meshed, install on the fixed plate and the output shaft installs the epaxial transmission motor of one of them transition.

Furthermore, the vacuum system comprises a vacuum pump, a pipeline, an electromagnetic valve and a vacuum sensor, wherein one end of the pipeline is communicated with the shell, the other end of the pipeline is communicated with the vacuum pump, the electromagnetic valve is installed on the pipeline, and the vacuum sensor is installed in the shell.

Furthermore, a feed inlet is formed in one end, close to the feeding conveyor, of the shell, and a discharge outlet is formed in one end, close to the discharging conveyor, of the shell; the front side and the rear side of the shell are both provided with perspective windows for observing the rolling condition; an access door for repairing is arranged on the front end surface of the shell.

Further, the feeding conveyor is the same as the discharging conveyor and is one of a belt conveyor and a roller conveyor.

The invention has the following beneficial effects:

(1) the invention solves the problem that the distance between the upper roller and the lower roller of the existing rolling device can not be adjusted through the rolling structure; a connecting rod mechanism is formed by the main support rod A, the auxiliary support rod A, the third support rod and the fourth support rod, and power is provided for the connecting rod structure by the extension and retraction of the main electric push rod and the auxiliary electric push rod, so that the included angle between the main support rod A and the main support rod B is changed, and the distance between the upper press roll and the lower press roll is driven to change; the upper pressing roll and the lower pressing roll rotate in opposite directions through gear transmission of the driving gear, the first transmission gear, the second transmission gear, the third transmission gear, the fourth transmission gear and the fifth transmission gear, and smooth rolling operation is guaranteed by matching with the work of the connecting rod mechanism.

(2) The graphene heat dissipation film is conveyed to the rolling structure from the feeding conveyor through the first transition machine, the graphene heat dissipation film is conveyed to the discharging conveyor from the rolling structure through the second transition machine, and the graphene heat dissipation film is conveyed by matching with the rolling structure, so that the influence on the conveyance of the graphene heat dissipation film caused by the height difference of the feeding conveyor, the discharging conveyor and the rolling structure is avoided; air in the shell is pumped out through the vacuum system, so that air pressure in the shell is smaller than external air pressure, bubbles in the graphene heat dissipation film are smoothly extruded, and the problems that the bubbles in the existing graphene heat dissipation film are remained and are not easy to discharge are solved.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a front cross-sectional view of the present invention;

3 fig. 33 3 is 3 a 3 top 3 view 3 along 3 a 3- 3 a 3 of 3 fig. 32 3. 3

In the figure:

1-shell, 2-vacuum system, 3-calendering structure, 4-feeding conveyor, 5-discharging conveyor, 6-first transition machine, 7-second transition machine, 8-feeding inlet, 9-discharging outlet, 10-perspective window, 11-access door, 12-first transmission shaft, 13-second transmission shaft, 14-main support shaft A, 15-auxiliary support shaft A, 17-main electric push rod, 18-auxiliary electric push rod, 19-lower press roller, 20-first transmission gear, 21-second transmission gear, 22-rotating shaft A, 23-upper press roller, 24-third transmission gear, 25-third support rod, 26-fourth transmission gear, 27-fifth transmission gear, 28-fourth support rod, 29-belt pulley, 30-endless belt, 31-calendering motor, 32-driving shaft, 33-worm wheel, 34-worm, 35-transition motor, 36-fixing plate, 37-transition shaft, 38-roller, 39-chain wheel, 40-transmission motor, 41-vacuum pump, 44-vacuum sensor and 45-driving gear.

Detailed Description

The invention is further described with reference to the following drawings and detailed description.

The utility model provides a graphite alkene heat dissipation membrane vacuum calendering device, which comprises a housin 1, communicate with casing 1 and be used for the vacuum system 2 of casing 1 interior evacuation, install the calendering structure 3 in casing 1, install in casing 1 and be located the feeding conveyor 4 of casing 1 respectively, discharge conveyor 5, install in casing 1 and be located between feeding conveyor 4 and the calendering structure 3, a first transition machine 6 for the transition, install in casing 1 and be located between discharge conveyor 5 and the calendering structure 3, a second transition machine 7 for the transition.

A feed inlet 8 is formed in one end, close to the feeding conveyor 4, of the shell 1, and a discharge outlet 9 is formed in one end, close to the discharging conveyor 5, of the shell 1; the front side and the rear side of the shell 1 are both provided with perspective windows 10 for observing the rolling condition; an access door 11 for repair is installed on the front end surface of the housing 1.

The feeding conveyor 4 is the same as the discharging conveyor 5, and is one of a belt conveyor and a roller conveyor.

The rolling structure 3 comprises a plurality of rolling assemblies which are arranged in the shell 1 and are uniformly distributed along the X direction;

the rolling component comprises a first transmission shaft 12 which is rotatably arranged on the shell 1 through rolling bearings at two ends, a second transmission shaft 13 which is rotatably arranged on the shell 1 through rolling bearings at two ends and is positioned above the first transmission shaft 12 and is vertically symmetrical with the first transmission shaft 12, a driving gear 45 arranged on the second transmission shaft 13, a main support shaft A14 which is rotatably arranged on the first transmission shaft 12 through rolling bearings at one end and is distributed along the central axis direction of the first transmission shaft 12, a main support shaft B, an auxiliary support shaft 539A 2 which is rotatably arranged on the second transmission shaft 13 through rolling bearings at one end and is distributed along the central axis direction of the second transmission shaft 13, an auxiliary support shaft B, a main support shaft A14 and an auxiliary support shaft A15 which are vertically symmetrical, a main support shaft B and an auxiliary support shaft B which are vertically symmetrical, a main electric push rod 17 which is hinged with the bottom of the shell 1 and a telescopic rod is hinged with the main support shaft A14, an auxiliary electric push rod 18, a rotating shaft A22 with one end rotatably mounted on the main supporting shaft A14 through a rolling bearing and the other end rotatably mounted on the main supporting shaft B through a rolling bearing, a lower pressing roller 19 mounted on the rotating shaft A22, a first transmission gear 20 mounted on the rotating shaft A22, a second transmission gear 21 rotatably mounted on the auxiliary supporting shaft A, a rotating shaft B with one end rotatably mounted on the auxiliary supporting shaft A15 through a rolling bearing and the other end rotatably mounted on the auxiliary supporting shaft B through a rolling bearing, an upper pressing roller 23 mounted on the rotating shaft B, a third transmission gear 24 mounted on the rotating shaft B and meshed with the second transmission gear 21, a third supporting rod 25 with one end hinged on the auxiliary supporting shaft A15 and with the same axis as the rotating shaft B, a fourth transmission gear 26 rotatably mounted at the center of the third supporting rod 25 and meshed with the third transmission gear 24, a fourth transmission gear 26 rotatably mounted on the third supporting rod 25 and, A fifth transmission gear 27 meshed with the first transmission gear 20, a fourth support rod 28 with one end hinged to the third support rod 25 and a hinged point coaxial with the fifth transmission gear 27, wherein one end of the fourth support rod 28 far away from the third support rod 25 is hinged to the main support rod a and the hinged point is coaxial with the first transmission gear 20;

The mechanical parameters of the first transmission gear 20, the third transmission gear 24 and the fifth transmission gear 27 are completely the same, and the mechanical parameters of the driving gear 45, the second transmission gear 21 and the fourth transmission gear 26 are completely the same;

the main support shaft a14, the main support shaft B, the auxiliary support shaft a15 and the auxiliary support shaft B are all L1 in length, the third support rod 25 is L2 in length, the fourth support rod 28 is L3 in length, 2L3 is L2, and 3L3 is L1 in length.

The rolling structure 3 further includes a pulley 29 mounted on the secondary drive shafts 13, an endless belt 30 frictionally driven with the plurality of pulleys 29, and a rolling motor 31 mounted on the housing 1 and having an output shaft mounted on one of the secondary drive shafts 13.

The problem that the distance between the upper roller and the lower roller of the existing rolling device can not be adjusted is solved through the rolling structure 3; a link mechanism is formed by the main support rod A, the auxiliary support rod A, the third support rod 25 and the fourth support rod 28, and power is provided for the link mechanism by the extension and retraction of the main electric push rod 17 and the auxiliary electric push rod 18, so that the included angle between the main support rod A and the main support rod B is changed, and the distance between the upper press roll 23 and the lower press roll 19 is driven to change; through the gear transmission of the driving gear 45, the first transmission gear 20, the second transmission gear 21, the third transmission gear 24, the fourth transmission gear 26 and the fifth transmission gear 27 and the gear transmission, the gears are always meshed, so that the rotating directions of the upper press roll 23 and the lower press roll 19 are opposite, and the smooth rolling operation is ensured by matching with the work of a link mechanism.

When the distance between the upper press roll 23 and the lower press roll 19 needs to be increased, the telescopic rods of the main electric push rod 17 and the auxiliary electric push rod 18 are shortened, so that the moving distances of the upper press roll 23 and the lower press roll 19 are the same.

The first transition machine 6 and the second transition machine 7 are bilaterally symmetrical about the rolling structure 3;

the first transition machine 6 comprises a driving shaft 32 rotatably mounted in the housing 1 through a rolling bearing, a worm wheel 33 mounted on the driving shaft 32, a worm 34 rotatably mounted on the housing 1 through a rolling bearing and engaged with the worm wheel 33, a transition motor 35 mounted on the housing 1 and having an output shaft mounted on the worm 34, a pair of fixing plates 36 having one ends mounted on the driving shaft 32 and located at both ends of the driving shaft 32, a plurality of transition shafts 37 having both ends rotatably mounted on the fixing plates 36 through rolling bearings and uniformly distributed along the length direction of the fixing plates 36, a roller 38 mounted on the transition shafts 37, a sprocket 39 mounted at one end of the transition shafts 37, a chain engaged with the plurality of sprockets 39, and a transmission motor 40 mounted on the fixing plates 36 and having an output shaft mounted on one of the transition shafts.

The graphene heat dissipation film is conveyed to the rolling structure 3 from the feeding conveyor 4 through the first transition machine 6, and the graphene heat dissipation film is conveyed to the discharging conveyor 5 from the rolling structure 3 through the second transition machine 7 and is conveyed by being matched with the rolling structure 3, so that the influence of the height difference on the conveying of the graphene heat dissipation film caused by the feeding conveyor 4, the discharging conveyor 5 and the rolling structure 3 is avoided; the inclination angle of the fixing plate 36 is adjusted through the worm wheel 33 and the worm 34, and the roller 38 is driven by the chain of the chain wheel 39 to rotate, so that the graphene heat dissipation film can be smoothly moved from the feeding conveyor 4 to the rolling structure 3.

The vacuum system 2 includes a vacuum pump 41, a pipe having one end communicating with the housing 1 and the other end communicating with the vacuum pump 41, an electromagnetic valve installed on the pipe, and a vacuum sensor 44 installed in the housing 1.

This application adopts the PLC controller as control system, controls vacuum system 2, calendering structure 3, first transition machine 6, second transition machine 7, feeding conveyor 4, the start and stop of discharging conveyor 5. The connection mode between the PLC controller and the vacuum system 2, the calendering structure 3, the first transition machine 6, the second transition machine 7, the feeding conveyor 4 and the discharging conveyor 5 is electric connection, and belongs to the prior art.

Air in the shell 1 is pumped out through the vacuum system 2, so that air pressure in the shell 1 is smaller than external air pressure, bubbles in the graphene heat dissipation film are smoothly extruded out, and the problems that bubbles in the existing graphene heat dissipation film are remained and are not easy to discharge are solved.

The working principle of the invention is as follows:

(1) according to the requirement, the main electric push rod 17 and the auxiliary electric push rod 18 are started to adjust the distance between the upper pressure roller 23 and the lower pressure roller 19;

(2) the first transition machine 6 adjusts the inclination angle of the fixed plate 36 according to the height difference between the rolling structure 3 and the feeding conveyor 4; the second transition machine 7 adjusts the inclination angle of the fixed plate 36 according to the height difference between the rolling structure 3 and the discharging conveyor 5;

(3) Starting the vacuum pump 41, opening the electromagnetic valve, pumping out air in the shell 1 by the vacuum pump 41, transmitting a signal to the PLC by the vacuum sensor 44 when the air content in the shell 1 is less than a preset value, and sending an instruction by the PLC to control the feeding conveyor 4, the first transition machine 6, the calendaring device, the second transition machine 7 and the discharging conveyor 5 to start working;

(4) the graphene heat dissipation film enters the shell 1 through the feeding hole 8, the feeding conveyor 4 conveys the graphene heat dissipation film to the first transition machine 6, the first transition machine 6 conveys the graphene heat dissipation film to the rolling structure 3, and the plurality of rolling assemblies roll the graphene heat dissipation film; and then the graphene heat dissipation film is transported to a discharging conveyor 5 through a second transition machine 7, and the discharging conveyor 5 transports the graphene heat dissipation film out of a discharging port 9.

Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, but only by the scope of the appended claims.