A winding and tightening device for graphite film production

Abstract

The present invention relates to the field of winding technology, and specifically to a winding and tightening device for graphite film production, including a bracket, a winding mechanism, an auxiliary mechanism, and a synchronization mechanism; a main shaft is rotatably mounted on the bracket; switching disks are coaxially fixed at both ends of the main shaft; and the winding mechanism includes a roller and a clamping assembly. During the process of replacing the roller, the synchronization mechanism drives the roller of the rear winding mechanism to move down and cooperate with the clamping assembly to cut the graphite film and clamp it on the rear roller. After that, the synchronization mechanism continues to drive the rear roller forward to between the two switching disks, and restricts the rear roller to the rear end of the switching disk through the auxiliary mechanism. When the graphite film is cut, there is no speed difference between the rear roller and the fracture of the graphite film, so as to avoid wrinkles in the graphite film when it is clamped on the roller. At the same time, the graphite film can complete the replacement of the roller without stopping to move, thereby improving the efficiency of winding and replacing the roller of the graphite film.

Description

Technical Field

[0001] The present invention relates to the field of winding technology, and in particular to a winding and tightening device for producing graphite films. Background Art

[0002] Heat dissipation graphite film is an advanced composite material. Due to its unique grain orientation, it can conduct heat in two directions and reduce heat concentration. Therefore, heat dissipation graphite film is widely used in mobile phones, computers and other devices with high power and difficult heat dissipation. In the graphite film processing process, the graphite film is generally rolled up by a winding device. When it is rolled to a certain thickness, the graphite film is cut and the winding roller is replaced by manual operation. The equipment is paused when the winding roller is replaced. After the replacement is completed, the equipment is turned on for the next round of winding.

[0003] In the prior art, for example, a Chinese patent with the announcement number CN114988182B, entitled A graphene heat dissipation film automatic winding device, discloses a technical solution in which a winding unit at the upper end of a support chuck rotates in cooperation with a contact unit to wind up the graphite film. When the graphite film is rolled up to a certain thickness, the winding unit stops rotating, and stops conveying the graphite film toward the support chuck, and the graphite film is cut and the cut end is fixed by a guide cutting unit, and then the support chuck rotates, which, on the one hand, drives the winding unit that has completed winding to rotate synchronously toward the centralized placement block, and on the other hand, drives the new winding unit to rotate to the contact unit, and the graphite film end contacts and adheres to the surface of the new winding unit, driving the new winding unit to rotate for the next round of graphite film winding. However, when the winding unit is completed and replaced with a new one, the transportation of the graphite film toward the supporting chuck needs to be stopped, and when the fracture of the graphite film contacts the new winding unit, the new winding unit is driven to rotate and wind up the graphite film, and at the same time, the graphite film is driven to be transported toward the new winding unit. Therefore, when the winding unit is replaced, the transportation of the graphite film is stopped, which affects the winding efficiency of the graphite film. Summary of the invention

[0004] The present invention provides a winding and tightening device for producing graphite film to solve the above-mentioned problem.

[0005] A winding and tightening device for graphite film production of the present invention adopts the following technical scheme: a winding and tightening device for graphite film production, comprising a bracket, a winding mechanism, an auxiliary mechanism, and a synchronization mechanism; the bracket is arranged front and rear; the bracket is provided with a main shaft with an axis extending in the left and right directions; the main shaft is rotatably installed on the bracket; a switching motor is fixed on the bracket; the output shaft of the switching motor and the main shaft are fixedly connected; switching disks are coaxially fixed at both ends of the main shaft; the graphite film moves from the rear side of the bracket to the switching disk.

[0006] There are two winding mechanisms distributed in the front and back; the front winding mechanism is arranged between the two switching disks and at the rear end of the switching disks; the winding mechanism includes a winding roller and a clamping assembly; the axis of the winding roller is extended along the left and right directions; the clamping assembly and the winding roller of the front winding mechanism cooperate to clamp the end of the graphite film on the winding roller; the winding roller and the clamping assembly of the rear winding mechanism are distributed on the upper and lower sides of the graphite film.

[0007] The auxiliary mechanism is used to limit the winding roller of the front winding mechanism to the rear end of the switching disk, and drive the winding roller to rotate to wind up the graphite film. After the winding is completed, and when the switching disk drives the wound roller to the front end of the switching disk, the auxiliary mechanism causes the wound roller to fall off the switching disk.

[0008] The synchronous mechanism is arranged at the rear side of the rear winding mechanism, and the synchronous mechanism drives the rear winding mechanism and the graphite film to move toward the switching disk at the same speed, and when the front winding roller is wound up, the synchronous mechanism drives the winding roller of the rear winding mechanism to move down and cooperate with the clamping assembly to cut the graphite film and clamp it on the rear winding roller, and then the synchronous mechanism continues to drive the rear winding roller to move forward between the two switching disks, and limits the rear winding roller to the rear end of the switching disk through the auxiliary mechanism to complete the winding roller switching; in the process of replacing the winding roller, when the graphite film is cut off, there is no speed difference between the rear winding roller and the fracture of the graphite film, so as to avoid wrinkles in the graphite film when it is clamped on the winding roller, and at the same time, the graphite film can be replaced without stopping to move, thereby improving the efficiency of winding and replacing the graphite film.

[0009] Furthermore, the clamping assembly includes a clamping groove, a clamping rod and a snap structure; the clamping groove is arranged on the side wall of the roller; the clamping groove opens downward and is a through groove extending along the axis of the roller; a cutter extending left and right is fixed on the groove edge on the front side of the clamping groove; the blade of the cutter faces downward.

[0010] The clamping rod is arranged below the clamping groove; the axis of the clamping rod extends in the left-right direction; a snap structure is provided between the clamping rod and the clamping groove; after the synchronization mechanism drives the roller of the rear winding mechanism to move downward, so that the upper end of the clamping rod is inserted into the clamping groove against the graphite film, the snap structure is used to clamp the clamping rod and the roller. During this process, the cutter moves downward with the roller to press the graphite film against the side wall of the clamping rod and cut it off, so that the rear roller and the corresponding clamping rod cut and clamp the graphite film.

[0011] Furthermore, two snap-fit ​​structures are symmetrically arranged on the left and right; the snap-fit ​​structures are arranged at both ends of the clamping rod, including a clamping rod and a clamping cavity; two clamping rods are symmetrically arranged front and back; an avoidance gap is arranged between the two clamping rods; the clamping rod is an elastic rod; the clamping rod is arranged in a radially parallel direction to the clamping rod; one end of the clamping rod close to the clamping rod is fixed on the side wall of the clamping rod; a clamping block is arranged on the end away from the clamping rod; the clamping block is fixed on the side wall of the clamping rod away from the avoidance gap; the upper end of the clamping block is wedge-shaped.

[0012] The clamping cavity is arranged in the roller, and is arranged on the side of the clamping groove close to the axis of the roller; the clamping cavity is a rectangular cavity, and the width of the clamping cavity in the front-to-back direction is greater than the distance between the ends of the clamping blocks on the two clamping rods that are away from each other; a connecting hole is arranged between the clamping cavity and the clamping groove; the connecting hole connects the clamping cavity and the clamping groove; the aperture of the connecting hole is smaller than the distance between the ends of the clamping blocks on the two clamping rods that are away from each other, and is greater than the distance between the ends of the clamping blocks on the two clamping rods that are away from each other after the ends of the two clamping rods that are away from the clamping rods are deformed, approached and abutted. When the roller moves downward, the wedge-shaped end of the clamping block abuts against the connecting hole, driving the ends of the two clamping rods that are away from the clamping rods to deform, approach and abut, so that the clamping rods are inserted into the connecting hole. When the clamping block enters the clamping cavity, the two clamping rods are moved away and reset, so that the clamping block is clamped on the cavity wall of the connecting hole in the clamping cavity, so as to clamp the clamping rod and the roller.

[0013] Furthermore, there are multiple auxiliary mechanisms evenly distributed along the circumference of the switching disk, including auxiliary grooves, auxiliary rods, matching grooves, and baffles; the auxiliary grooves are opened on the side walls of the switching disk; the auxiliary grooves are arc-shaped; the axis of the auxiliary rod extends along the left and right directions and is rotatably installed in the auxiliary grooves; the auxiliary rod is a rectangular rod; a winding motor is provided at one end of the auxiliary rod away from the center of the main shaft; the winding motor is fixed on the switching disk, and the output shaft of the winding motor is fixedly connected to the auxiliary rod.

[0014] The matching groove is arranged on the side wall of the roller and is located at both ends of the roller; the matching groove opening is arranged forward; the baffle is arranged below the switching disk; the baffle is arc-shaped and concentric with the switching disk; a switching gap is formed between the baffle and the switching disk. The synchronization mechanism drives the rear roller to move forward between the two switching disks, so that the roller enters the auxiliary groove, so that the auxiliary rod is stuck in the matching groove, and the switching motor drives the switching disk to rotate a certain angle, so that the two ends of the roller in the auxiliary groove enter the switching gap, and the roller of the front winding mechanism is restricted at the rear end of the switching disk, and the winding motor is started to drive the roller to rotate, so as to wind the graphite film.

[0015] Furthermore, the synchronization mechanism includes a socket, a synchronization frame, a placement block, and a connecting assembly; the socket is arranged on the side wall of the roller and is located at both ends of the roller; the socket is a through hole arranged horizontally front and back; the synchronization frame is arranged on the rear side of the rear roller; the synchronization frame is a U-shaped frame with an opening facing downward; the synchronization frame is slidably installed on the bracket front and back; a synchronization hydraulic rod is provided on the rear side of the synchronization frame; the synchronization hydraulic rod is fixed on the bracket, and the piston rod of the synchronization hydraulic rod is fixedly connected to the synchronization frame.

[0016] The placement block is arranged below the synchronous frame and is located at the rear side of the rear roller; a vertically arranged lifting hydraulic rod is connected between the placement block and the synchronous frame; a plug rod is fixed at the front end of the placement block; the plug rod is arranged horizontally in front and behind; the plug rod is inserted into the socket; the connection assembly is arranged between the synchronous frame and the clamping rod; the connection assembly is used to make the clamping rod move synchronously with the synchronous frame, and when the cutter moves down with the roller to press the graphite film against the side wall of the clamping rod and cut it, the rear roller and the corresponding clamping rod cut and clamp the graphite film, and the clamping rod and the synchronous frame are separated. The graphite film fracture is clamped on the roller by the clamping rod and the roller buckle, which increases the pressure between the graphite film and the roller to avoid slipping when the graphite film is rolled up.

[0017] Furthermore, the connecting component includes a limit groove, a limit strip, and an intermediate cylinder; two limit grooves are provided, distributed at both ends of the clamping rod; the limit groove is an annular groove, opened on the side walls at both ends of the clamping rod; two limit strips are symmetrically provided on the left and right, distributed at both ends of the clamping rod; the limit strip is fixed on the bracket in the front and back, and is located below the clamping rod; the limit strip is stuck in the limit groove of the clamping rod of the rear winding mechanism.

[0018] The intermediate tube is arranged on the side of the limiting groove away from the center of the clamping rod; the intermediate tube and the clamping rod are coaxial; the intermediate tube and the clamping rod are slidably matched along the axis of the clamping rod through splines; a matching strip is arranged below the intermediate tube; the matching strip is fixed on the bracket in front and back arrangements; the intermediate tube is slidably mounted on the matching strip; the matching strip includes a connecting section and a disengaging section; the connecting section is arranged at the rear end of the matching strip, and the disengaging section is arranged at the front end of the matching strip; the front end of the connecting section and the rear end of the disengaging section are fixedly connected; the connecting section and the limiting strip are parallel, and the disengaging section is arranged obliquely away from the limiting strip.

[0019] A connecting motor is provided at one end of the intermediate cylinder away from the center of the clamping rod; the connecting motor is fixed on the synchronous frame; the output shaft of the connecting motor and the intermediate cylinder slide along the axis of the clamping rod through a spline. The synchronous frame drives the intermediate cylinder forward through the connecting motor, and the intermediate cylinder drives the clamping rod to move forward synchronously. When the cutter moves downward with the roller to press the graphite film against the side wall of the clamping rod and cut it, so that the rear roller and the corresponding clamping rod cut and clamp the graphite film, the intermediate cylinder slides from the connecting section to the disengaging section, and the disengaging section drives the intermediate cylinder to move toward the connecting motor, so that the intermediate cylinder and the clamping rod are disengaged.

[0020] Furthermore, the synchronization mechanism also includes a smoothing component; the smoothing component is arranged on the clamping rod, and when the graphite film is rolled up, the smoothing component smoothes and combs the graphite film on the left and right sides below the graphite film.

[0021] Furthermore, the smoothing assembly includes a smoothing groove; the smoothing groove is arranged on the side of the upper end of the side wall of the clamping rod away from the switching disk; two smoothing structures are symmetrical in the smoothing groove; the smoothing structure includes a plurality of smoothing strips distributed along the axis of the clamping rod; the smoothing strip is an elastic strip; the smoothing strip is arc-shaped and arranged in the smoothing groove with an up-down tilt; the smoothing strip protrudes out of the smoothing groove; the smoothing strips of the two smoothing structures are V-shaped with the opening facing backwards; the upper end of the smoothing strip is fixed on the clamping rod, and the lower end is slidably installed in the smoothing groove along the axis direction of the clamping rod. During the winding process, the motor is connected to drive the clamping rod to rotate, and the smoothing strip abuts against the graphite film. The smoothing strip on the left provides a smoothing and combing force to the left for the graphite film, and the smoothing strip on the right provides a smoothing and combing force to the right for the graphite film, thereby reducing wrinkles when the graphite film is wound. When the winding roller and the clamping rod are buckled together for winding and extrusion, the smoothing strip is deformed, causing the lower end of the smoothing strip to slide away from the center of the clamping rod, thereby smoothing the graphite film and reducing the possibility of wrinkles in the graphite film.

[0022] Furthermore, the synchronization mechanism also includes a switching assembly; the switching assembly includes a switching plate; the switching plate is arranged below the synchronization frame and is located at the rear side of the rear roller; the switching plate is an arc-shaped plate; a horizontally arranged switching hydraulic rod is connected between the switching plate and the synchronization frame. When the synchronization frame drives the rear roller to move to the switching disk, it stops moving and simultaneously starts the switching hydraulic rod, so that the switching plate pushes the rear roller forward, disengages the insertion rod from the insertion hole, and pushes the roller into the auxiliary groove, so that the auxiliary rod is stuck in the matching groove, thereby shortening the time of roller switching.

[0023] Furthermore, a centralizing plate is provided at the front end of the bracket; two vertical plates are provided symmetrically at the left and right sides of the centralizing plate; the upper end of the centralizing plate is an inclined wall; the centralizing plate is in a V-shape with the small end facing forward; the rear end of the centralizing plate is provided below the switching disk and is fixedly connected to the front end of the baffle plate; an arc-shaped stop plate is fixed at the front end of the inclined wall of the centralizing plate. When the winding roller rotates to the front end of the switching disk, the roller slides out of the switching gap to the inclined wall of the centralizing plate, and under the action of gravity, the winding roller rolls forward. When the winding roller rolls to the stop plate, the stop plate prevents the winding roller from continuing to roll down, so that the winding roller is on the inclined wall at the upper end of the centralizing plate.

[0024] The beneficial effects of the present invention are:

[0025] 1. The synchronous mechanism drives the winding mechanism and the graphite film at the rear to move toward the switching disk at the same speed, and when the front roller is wound up, the synchronous mechanism drives the roller of the winding mechanism at the rear to move down and cooperates with the clamping assembly to cut the graphite film and clamp it on the rear roller. Then the synchronous mechanism continues to drive the rear roller to move forward between the two switching disks, and limits the rear roller to the rear end of the switching disk through the auxiliary mechanism to complete the roller switching; in the process of replacing the roller, when the graphite film is cut off, there is no speed difference between the rear roller and the fracture of the graphite film, so as to avoid wrinkles in the graphite film when it is clamped on the roller. At the same time, the graphite film can be replaced without stopping to move, thereby improving the efficiency of winding and replacing the graphite film.

[0026] 2. The graphite film fracture is clamped on the roller by combining the clamping rod and the roller buckle, which increases the pressure between the graphite film and the roller and avoids slipping when winding the graphite film.

[0027] 3. During the winding process, the motor is connected to drive the clamping rod to rotate, and the smoothing bar abuts against the graphite film. The smoothing bar on the left provides a smoothing and combing force to the left for the graphite film, and the smoothing bar on the right provides a smoothing and combing force to the right for the graphite film, thereby reducing wrinkles when the graphite film is wound.

[0028] 4. When the winding roller and the clamping rod are buckled together for winding and extrusion, the smoothing strip is deformed, so that the lower end of the smoothing strip slides away from the center of the clamping rod, smoothing the graphite film and reducing the possibility of wrinkles in the graphite film. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0030] Figure 1 It is a structural schematic diagram of an embodiment of a winding and tightening device for producing graphite film of the present invention;

[0031] Figure 2 It is a schematic diagram of another angle of an embodiment of a winding and tightening device for producing a graphite film of the present invention;

[0032] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0033] Figure 4 It is a rear view of an embodiment of a winding and tightening device for producing graphite film of the present invention;

[0034] Figure 5 for Figure 4 Sectional view at the middle BB;

[0035] Figure 6 for Figure 5 Enlarged view of point C in the middle;

[0036] Figure 7 for Figure 6 The enlarged view of point D in the middle;

[0037] Figure 8 A schematic diagram of a clamping rod of an embodiment of a winding and tightening device for producing graphite film according to the present invention;

[0038] Fig. 9 for Figure 8 Enlarged view of point E in the middle;

[0039] Fig.10 A cross-sectional view of a clamping rod of an embodiment of a winding and tightening device for producing a graphite film according to the present invention;

[0040] Fig.11 This is a schematic diagram of a switching disk of an embodiment of a winding and tightening device for graphite film production according to the present invention.

[0041] In the figure: 100, graphite film; 200, bracket; 210, centralizing plate; 220, stop plate; 300, switching plate; 310, switching motor; 320, main shaft; 400, winding roller; 510, clamping groove; 511, cutting knife; 520, clamping rod; 521, smoothing groove; 522, smoothing strip; 531, clamping rod; 532, clamping cavity; 533, connecting hole; 610, auxiliary groove; 620, auxiliary rod; 630, winding motor; 640, matching groove; 650, baffle; 710, plug hole; 720, synchronous frame; 721, synchronous hydraulic rod; 730, placing block; 731, lifting hydraulic rod; 732, plug rod; 810, limiting groove; 820, limiting strip; 830, intermediate cylinder; 840, matching strip; 850, connecting motor; 910, switching plate; 920, switching hydraulic rod. DETAILED DESCRIPTION

[0042] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] An embodiment of a winding and tightening device for producing a graphite film according to the present invention is as follows: Figures 1 to 11 As shown: A winding and tightening device for graphite film production, including a bracket 200, a winding mechanism, an auxiliary mechanism, and a synchronization mechanism; the bracket 200 is arranged front and back; according to Figure 1 , Figure 2 , Figure 3 as well as Figure 5 In the figure, the left and right directions of the picture seen by people are set as the front and back directions of the bracket 200; the bracket 200 is provided with a main shaft 320 whose axis extends along the left and right directions; the main shaft 320 is rotatably installed on the bracket 200; a switching motor 310 is fixed on the bracket 200; the output shaft of the switching motor 310 and the main shaft 320 are fixedly connected; switching disks 300 are coaxially fixed at both ends of the main shaft 320; the graphite film 100 moves from the rear side of the bracket 200 to the switching disk 300.

[0044] There are two winding mechanisms distributed in the front and back; the front winding mechanism is arranged between the two switching disks 300 and is located at the rear end of the switching disk 300; the winding mechanism includes a winding roller 400 and a clamping assembly; the axis of the winding roller 400 extends in the left and right directions; the clamping assembly of the front winding mechanism and the winding roller 400 cooperate to clamp the end of the graphite film 100 on the winding roller 400; the winding roller 400 and the clamping assembly of the rear winding mechanism are distributed on the upper and lower sides of the graphite film 100. The clamping assembly includes a clamping groove 510, a clamping rod 520 and a buckle structure; the clamping groove 510 is arranged on the side wall of the winding roller 400; the clamping groove 510 opens downward and is a through groove extending along the axis of the winding roller 400; a cutter 511 extending left and right is fixed on the notch edge of the front side of the clamping groove 510; the blade of the cutter 511 faces downward.

[0045] The clamping rod 520 is arranged below the clamping groove 510; the axis of the clamping rod 520 extends in the left-right direction; a buckle structure is arranged between the clamping rod 520 and the clamping groove 510. After the synchronous mechanism drives the roller 400 of the winding mechanism at the rear to move downward, so that the upper end of the clamping rod 520 is inserted into the clamping groove 510 against the graphite film 100, the buckle structure is used to clamp the clamping rod 520 and the roller 400. In this process, the cutter 511 moves downward with the roller 400 to press the graphite film 100 against the side wall of the clamping rod 520 and cut it, so that the rear roller 400 and the corresponding clamping rod 520 cut and clamp the graphite film 100. Two snap structures are symmetrically arranged on the left and right; the snap structures are arranged at both ends of the clamping rod 520, including a clamping rod 531 and a clamping cavity 532; two clamping rods 531 are symmetrically arranged front to back; an avoidance gap is arranged between the two clamping rods 531; the clamping rod 531 is an elastic rod; the clamping rod 531 is arranged in a radially parallel direction to the clamping rod 520; one end of the clamping rod 531 close to the clamping rod 520 is fixed on the side wall of the clamping rod 520; a clamping block is arranged on the end away from the clamping rod 520; the clamping block is fixed on the side wall of the clamping rod 531 away from the avoidance gap; the upper end of the clamping block is wedge-shaped.

[0046] The card cavity 532 is arranged in the winding roller 400, and is arranged on the side of the clamping groove 510 close to the axis of the winding roller 400; the card cavity 532 is a rectangular cavity, and the width of the card cavity 532 in the front-to-back direction is greater than the distance between the ends of the card blocks on the two clamping rods 531 that are away from each other; a connecting hole 533 is provided between the card cavity 532 and the clamping groove 510; the connecting hole 533 connects the card cavity 532 and the clamping groove 510; the aperture of the connecting hole 533 is smaller than the distance between the ends of the card blocks on the two clamping rods 531 that are away from each other, and is greater than the distance between the ends of the card blocks on the two clamping rods 531 that are away from each other after the ends of the two clamping rods 531 that are away from the clamping rod 520 are deformed, approached and abutted. The winding roller 400 moves downward, and the wedge-shaped end of the card block abuts against the connecting hole 533, driving the two card rods 531 to deform and abut against one end away from the clamping rod 520, so that the card rod 531 is inserted into the connecting hole 533. When the card block enters the card cavity 532, the two card rods 531 move away from each other and reset, so that the card block is stuck on the cavity wall of the card cavity 532 where the connecting hole 533 is opened, so as to clamp the clamping rod 520 and the winding roller 400.

[0047] The auxiliary mechanism is used to limit the winding roller 400 of the front winding mechanism at the rear end of the switching disk 300, and drive the winding roller 400 to rotate to wind up the graphite film 100. After the winding is completed, and when the switching disk 300 drives the wound roller 400 to rotate to the front end of the switching disk 300, the auxiliary mechanism causes the wound roller 400 to fall off the switching disk 300. There are multiple auxiliary mechanisms evenly distributed along the circumference of the switching disk 300, including an auxiliary groove 610, an auxiliary rod 620, a matching groove 640, and a baffle 650; the auxiliary groove 610 is opened on the side wall of the switching disk 300; the auxiliary groove 610 is arc-shaped; the axis of the auxiliary rod 620 extends along the left and right directions and is rotatably installed in the auxiliary groove 610; the auxiliary rod 620 is a rectangular rod; a winding motor 630 is provided at one end of the auxiliary rod 620 away from the center of the main shaft 320; the winding motor 630 is fixed on the switching disk 300, and the output shaft of the winding motor 630 is fixedly connected to the auxiliary rod 620.

[0048] The matching groove 640 is arranged on the side wall of the winding roller 400 and is located at both ends of the winding roller 400; the matching groove 640 is opened forward; the baffle 650 is arranged below the switching disk 300; the baffle 650 is arc-shaped and concentric with the switching disk 300; and a switching gap is formed between the baffle 650 and the switching disk 300. The synchronization mechanism drives the rear winding roller 400 to move forward between the two switching disks 300, so that the winding roller 400 enters the auxiliary groove 610, so that the auxiliary rod 620 is stuck in the matching groove 640, and the switching motor 310 drives the switching disk 300 to rotate a certain angle, so that the two ends of the winding roller 400 in the auxiliary groove 610 enter the switching gap, and the winding roller 400 of the front winding mechanism is restricted at the rear end of the switching disk 300, and the winding motor 630 is started to drive the winding roller 400 to rotate, so as to wind up the graphite film 100.

[0049] A centralizing plate 210 is provided at the front end of the bracket 200; two vertical plates are provided symmetrically at the front and rear of the centralizing plate 210; the upper end of the centralizing plate 210 is an inclined wall; the centralizing plate 210 is in a V shape with the small end facing forward; the rear end of the centralizing plate 210 is provided below the switching disk 300 and is fixedly connected to the front end of the baffle 650; an arc-shaped stop plate 220 is fixed at the front end of the inclined wall of the centralizing plate 210. When the winding roller 400 rotates to the front end of the switching disk 300, the winding roller 400 slides out of the switching gap to the inclined wall of the centralizing plate 210, and under the action of gravity, the winding roller 400 rolls forward, and when the winding roller 400 rolls to the stop plate 220, the stop plate 220 prevents the winding roller 400 from continuing to roll down, so that the winding roller 400 is on the upper inclined wall of the centralizing plate 210.

[0050] The synchronous mechanism is arranged at the rear side of the rear winding mechanism, and the synchronous mechanism drives the rear winding mechanism and the graphite film 100 to move toward the switching disk 300 at the same speed, and when the front winding roller 400 is wound, the synchronous mechanism drives the winding roller 400 of the rear winding mechanism to move down and cooperate with the clamping assembly to cut the graphite film 100 and clamp it on the rear winding roller 400, and then the synchronous mechanism continues to drive the rear winding roller 400 to move forward between the two switching disks 300, and through the auxiliary mechanism The rear roller 400 is restricted to the rear end of the switching disk 300 to complete the switching of the roller 400; in the process of replacing the roller 400, when the graphite film 100 is cut, there is no speed difference between the rear roller 400 and the fracture of the graphite film 100, thereby avoiding wrinkles on the graphite film 100 when it is clamped on the roller 400. At the same time, the graphite film 100 does not need to stop moving to complete the replacement of the roller 400, thereby improving the efficiency of winding the graphite film 100 and replacing the roller 400.

[0051] The synchronization mechanism includes a socket 710, a synchronization frame 720, a placement block 730, a connecting component, a smoothing component, and a switching component.

[0052] The socket 710 is arranged on the side wall of the roller 400 and is located at both ends of the roller 400; the socket 710 is a through hole arranged horizontally front and back; the synchronous frame 720 is arranged on the rear side of the rear roller 400; the synchronous frame 720 is a U-shaped frame with an opening facing downward; the synchronous frame 720 is slidably installed on the bracket 200 front and back; a synchronous hydraulic rod 721 is provided on the rear side of the synchronous frame 720; the synchronous hydraulic rod 721 is fixed on the bracket 200, and the piston rod of the synchronous hydraulic rod 721 is fixedly connected to the synchronous frame 720.

[0053] The placement block 730 is arranged below the synchronous frame 720 and is located at the rear side of the rear roller 400; a vertically arranged lifting hydraulic rod 731 is connected between the placement block 730 and the synchronous frame 720; an insertion rod 732 is fixed to the front end of the placement block 730; the insertion rod 732 is arranged horizontally front and back; the insertion rod 732 is inserted into the socket 710; the connecting assembly is arranged between the synchronous frame 720 and the clamping rod 520.

[0054] The connection assembly is used to make the clamping rod 520 move synchronously with the synchronous frame 720, and when the cutter 511 moves downward with the winding roller 400 to press the graphite film 100 against the side wall of the clamping rod 520 and cut it, the rear winding roller 400 and the corresponding clamping rod 520 cut and clamp the graphite film 100, and the clamping rod 520 and the synchronous frame 720 are separated. The broken end of the graphite film 100 is clamped on the winding roller 400 by the clamping rod 520 and the winding roller 400, which increases the pressure between the graphite film 100 and the winding roller 400, and avoids slipping when the graphite film 100 is rolled up. The connecting component includes a limit groove 810, a limit strip 820, and an intermediate tube 830; there are two limit grooves 810, which are distributed at both ends of the clamping rod 520; the limit groove 810 is an annular groove, which is opened on the side walls at both ends of the clamping rod 520; there are two limit strips 820 symmetrically provided on the left and right, which are distributed at both ends of the clamping rod 520; the limit strip 820 is fixed on the bracket 200 in a front-back manner, and is located below the clamping rod 520; the limit strip 820 is stuck in the limit groove 810 of the clamping rod 520 of the rear winding mechanism.

[0055] The intermediate cylinder 830 is arranged on the side of the limiting groove 810 away from the center of the clamping rod 520; the intermediate cylinder 830 and the clamping rod 520 are coaxial; the intermediate cylinder 830 and the clamping rod 520 are slidably matched along the axis of the clamping rod 520 through splines; a matching strip 840 is provided below the intermediate cylinder 830; the matching strip 840 is fixed on the bracket 200 in a front-back arrangement; the intermediate cylinder 830 is slidably installed on the matching strip 840; the matching strip 840 includes a connecting section and a disengaging section; the connecting section is arranged at the rear end of the matching strip 840, and the disengaging section is arranged at the front end of the matching strip 840; the front end of the connecting section and the rear end of the disengaging section are fixedly connected; the connecting section is parallel to the limiting strip 820, and the disengaging section is inclined away from the limiting strip 820.

[0056] The end of the intermediate cylinder 830 away from the center of the clamping rod 520 is provided with a connecting motor 850; the connecting motor 850 is fixed on the synchronous frame 720; the output shaft of the connecting motor 850 and the intermediate cylinder 830 are slidably matched along the axis of the clamping rod 520 through a spline. The synchronous frame 720 drives the intermediate cylinder 830 forward through the connecting motor 850, and the intermediate cylinder 830 drives the clamping rod 520 to move forward synchronously. When the cutter 511 moves downward with the winding roller 400 to press the graphite film 100 against the side wall of the clamping rod 520 and cut it, so that the rear winding roller 400 and the corresponding clamping rod 520 cut and clamp the graphite film 100, the intermediate cylinder 830 slides from the connecting section to the disengaging section, and the disengaging section drives the intermediate cylinder 830 to move toward the connecting motor 850, so that the intermediate cylinder 830 and the clamping rod 520 are disengaged.

[0057] The smoothing component is arranged on the clamping rod 520. When the graphite film 100 is rolled up, the smoothing component smoothes and combs the graphite film 100 on the left and right sides below the graphite film 100. The smoothing component includes a smoothing groove 521; the smoothing groove 521 is arranged on the side of the upper end of the side wall of the clamping rod 520 away from the switching disk 300; two smoothing structures are arranged in the smoothing groove 521 that are symmetrical on the left and right; the smoothing structure includes a plurality of smoothing strips 522 distributed along the axis of the clamping rod 520; the smoothing strips 522 are elastic strips; the smoothing strips 522 are arc-shaped and are arranged in the smoothing groove 521 with an up-down tilt; the smoothing strips 522 protrude from the smoothing groove 521; the smoothing strips 522 of the two smoothing structures are V-shaped with the opening facing backwards; the upper end of the smoothing strip 522 is fixed on the clamping rod 520, and the lower end is slidably installed in the smoothing groove 521 along the axis direction of the clamping rod 520. During the winding process, the motor 850 is connected to drive the clamping rod 520 to rotate, and the smoothing strip 522 abuts against the graphite film 100. The smoothing strip 522 on the left provides a smoothing and combing force to the left for the graphite film 100, and the smoothing strip 522 on the right provides a smoothing and combing force to the right for the graphite film 100, thereby reducing wrinkles when the graphite film 100 is wound. When the winding roller 400 and the clamping rod 520 are buckled together for winding and extrusion, the smoothing strip 522 is deformed, so that the lower end of the smoothing strip 522 slides in a direction away from the center of the clamping rod 520, smoothing the graphite film 100, and reducing the possibility of wrinkles in the graphite film 100.

[0058] The switching assembly includes a switching plate 910; the switching plate 910 is arranged below the synchronous frame 720 and at the rear side of the rear winding roller 400; the switching plate 910 is an arc-shaped plate; a horizontally arranged switching hydraulic rod 920 is connected between the switching plate 910 and the synchronous frame 720. When the synchronous frame 720 drives the rear winding roller 400 to move to the switching disk 300, the movement is stopped, and the switching hydraulic rod 920 is started at the same time, so that the switching plate 910 pushes the rear winding roller 400 forward, so that the insertion rod 732 is separated from the insertion hole 710, and the winding roller 400 is pushed into the auxiliary groove 610, so that the auxiliary rod 620 is stuck in the matching groove 640, which shortens the time of switching the winding roller 400.

[0059] In combination with the above embodiments, the use principle and working process of the present invention are as follows: in the initial use, the insertion hole 710 of a roll 400 is manually aligned with the insertion rod 732, and then the roll 400 is placed on the placement block 730, and then the clamping rod 520 is clamped on the limit bar 820 through the limit groove 810. When the graphite film 100 is pulled from the rear to between the roll 400 and the clamping rod 520, the lifting hydraulic rod 731 drives the placement block 730 to move downward, so that the roll 400 moves downward, the wedge-shaped end of the clamping block abuts against the connecting hole 533, and drives the ends of the two clamping rods 531 away from the clamping rod 520 to deform and abut, so that the clamping rods 531 are inserted into the connecting hole 533. When the clamping block enters the clamping cavity 532, the two clamping rods 531 are reset away, so that the clamping block is clamped on the cavity wall of the clamping cavity 532 where the connecting hole 533 is opened, so as to clamp the clamping rod 520 and the roll 400. The synchronous hydraulic rod 721 drives the synchronous frame 720 to drive the winding roller 400 that has clamped the broken end of the graphite film 100 to move forward between the two switching disks 300, so that the winding roller 400 enters the auxiliary groove 610, so that the auxiliary rod 620 is clamped into the matching groove 640, and the switching motor 310 drives the switching disk 300 to rotate a certain angle, so that the two ends of the winding roller 400 in the auxiliary groove 610 enter the switching gap, and the winding roller 400 of the front winding mechanism is restricted at the rear end of the switching disk 300, and the winding motor 630 is started to drive the winding roller 400 to rotate, and the graphite film 100 is wound. After the synchronous frame 720 moves backward and resets, the operator manually aligns the insertion hole 710 of the new winding roller 400 with the insertion rod 732 again, and then places the winding roller 400 on the placement block 730, and then clamps the new clamping rod 520 in the limit bar 820 through the limit groove 810. At this time, there are two front and rear winding mechanisms on the bracket 200, and the winding roller 400 of the front winding mechanism is snap-fitted with the clamping rod 520, and driven by the winding motor 630, the front winding roller 400 rotates for winding.

[0060] When the film is rolled to a certain thickness, the synchronous hydraulic rod 721 drives the synchronous frame 720 to drive the rear roller 400 and the clamping rod 520 and the graphite film 100 to move toward the switching disk 300 at the same speed. The connecting motor 850 drives the clamping rod 520 to rotate, and the smoothing strip 522 abuts against the graphite film 100. The smoothing strip 522 on the left provides a smoothing and combing force to the left for the graphite film 100, and the smoothing strip 522 on the right provides a smoothing and combing force to the right for the graphite film 100, thereby reducing wrinkles when the graphite film 100 is rolled. When the roller 400 and the clamping rod 520 are buckled together for rolling and extrusion, the smoothing strip 522 is deformed, causing the lower end of the smoothing strip 522 to slide in a direction away from the center of the clamping rod 520, thereby smoothing the graphite film 100 and reducing the possibility of wrinkles in the graphite film 100.

[0061] In the process of the clamping rod 520 driving the intermediate cylinder 830 to move from the connection section of the matching strip 840 to the disengagement section, when the clamping rod 531 rotates to the upper end of the clamping rod 520, the connecting motor 850 stops rotating, causing the intermediate cylinder 830 to stop rotating. At this time, the clamping rod 520 and the graphite film 100 are relatively still. At this time, the lifting hydraulic rod 731 drives the placement block 730 to move downward, so that the winding roller 400 moves downward, and the wedge-shaped end of the card block abuts against the connecting hole 533, driving the two card rods 531 away from the end of the clamping rod 520 to deform, approach and abut, so that the card rod 531 is inserted into the connecting hole 533. When the card block enters the clamping cavity 532, the two card rods 531 are reset away, so that the card block is clamped on the cavity wall of the clamping cavity 532 where the connecting hole 533 is opened, so as to clamp the clamping rod 520 and the winding roller 400. In this process, the cutter 511 moves downward with the winding roller 400 to press the graphite film 100 against the side wall of the clamping rod 520 and cut it off, so that the rear winding roller 400 and the corresponding clamping rod 520 cut and clamp the graphite film 100. Then, when the cutter 511 moves downward with the winding roller 400 to press the graphite film 100 against the side wall of the clamping rod 520 and cut it off, so that the rear winding roller 400 and the corresponding clamping rod 520 cut and clamp the graphite film 100, the intermediate cylinder 830 slides from the connecting section to the disengaging section, and the disengaging section drives the intermediate cylinder 830 to move toward the connecting motor 850, so that the intermediate cylinder 830 and the clamping rod 520 are disengaged.

[0062] The front roller 400 continues to rotate to reel up the remaining graphite film 100 after cutting, and the switching motor 310 is started to drive the switching disk 300 to drive the front roller 400 that has been rolled up to rotate. When the rolled up roller 400 rotates to the front end of the switching disk 300, the roller 400 slides out of the switching gap to the inclined wall of the centralizing plate 210, and under the action of gravity, the rolled up roller 400 rolls forward. When the rolled up roller 400 rolls to the stop plate 220, the stop plate 220 prevents the rolled up roller 400 from continuing to roll down, so that the rolled up roller 400 is on the upper inclined wall of the centralizing plate 210.

[0063] The synchronous frame 720 continues to drive the rear roller 400 and the clamping rod 520 to pull the graphite film 100 forward. When the rear roller 400 moves to the vicinity of the rear side of the switching disk 300, the synchronous frame 720 stops moving, and the switching hydraulic rod 920 is started at the same time, so that the switching plate 910 pushes the rear roller 400 forward, so that the insertion rod 732 disengages from the insertion hole 710, and pushes the roller 400 into the auxiliary groove 610, so that the auxiliary rod 620 is stuck in the matching groove 640, and the winding motor 630 is started to drive the roller 400 to rotate for winding. Compared with the method in which the synchronous frame 720 directly pushes the rear winding roller 400 into the auxiliary groove 610, it is necessary to first make the synchronous frame 720 drive the placement block 730 to retreat and pull the insertion rod 732 out of the socket 710 before starting the winding motor 630 to rotate and rewind the winding roller 400. The switching hydraulic rod 920 drives the switching plate 910 to push the rear winding roller 400 forward. After the switching plate 910 pushes the winding roller 400 into the auxiliary groove 610 and the auxiliary rod 620 is inserted into the matching groove 640, the winding motor 630 can be started immediately to drive the winding roller 400 to rotate for rewinding, thereby shortening the switching time of the winding roller 400.

[0064] After the synchronous frame 720 is moved back and reset, the operator manually aligns the insertion hole 710 of the new winding roller 400 with the insertion rod 732 again, places the winding roller 400 on the placement block 730, and then clamps the new clamping rod 520 in the limiting strip 820 through the limiting groove 810. At this time, the front and rear winding mechanisms are again present on the bracket 200. The above process is repeated to wind and switch the winding roller 400. During the process of replacing the winding roller 400, when the graphite film 100 is cut off, there is no speed difference between the rear winding roller 400 and the fracture of the graphite film 100, so as to avoid wrinkles on the graphite film 100 when it is clamped on the winding roller 400. At the same time, the graphite film 100 can complete the replacement of the winding roller 400 without stopping the movement, thereby improving the efficiency of winding the graphite film 100 and replacing the winding roller 400.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A winding and tightening device for graphite film production, characterized in that: It includes a bracket, a winding mechanism, an auxiliary mechanism, and a synchronization mechanism; The bracket is arranged front and back; a main shaft is arranged on the bracket with an axis extending in the left and right direction; the main shaft is rotatably mounted on the bracket; a switching disk is coaxially fixed at both ends of the main shaft; the graphite film moves from the rear side of the bracket to the switching disk; There are two winding mechanisms distributed in the front and back; the front winding mechanism is arranged between the two switching disks and at the rear end of the switching disks; the winding mechanism includes a winding roller and a clamping assembly; the axis of the winding roller is extended in the left and right directions; the clamping assembly and the winding roller of the front winding mechanism cooperate to clamp the end of the graphite film on the winding roller; the winding roller and the clamping assembly of the rear winding mechanism are distributed on the upper and lower sides of the graphite film; the clamping assembly includes a clamping groove, a clamping rod and a buckle structure; the clamping groove is arranged on the side wall of the winding roller; the clamping groove opens downward; a cutter extending left and right is fixed on the edge of the groove on the front side of the clamping groove; The cutting blade of the cutter faces downward; the clamping rod is arranged below the clamping groove; the axis of the clamping rod extends in the left-right direction; a buckle structure is arranged between the clamping rod and the clamping groove; the buckle structure is used to clamp the clamping rod and the winding roller; There are multiple auxiliary mechanisms evenly distributed along the circumference of the switching disk, including auxiliary grooves, auxiliary rods, matching grooves, and baffles; the auxiliary grooves are arranged on the side walls of the switching disk; the auxiliary grooves are arc-shaped; the axis of the auxiliary rods is extended in the left and right directions and is rotatably installed in the auxiliary grooves; the auxiliary rods are rectangular rods; the matching grooves are arranged on the side walls of the rollers and are located at both ends of the rollers; the matching grooves are opened forward; the baffles are arranged below the switching disk; the baffles are arc-shaped and are concentric with the switching disk; a switching gap is formed between the baffles and the switching disk; The synchronization mechanism includes a socket, a synchronization frame, a placement block, and a connection component; The plug holes are arranged on the side wall of the roller and are located at both ends of the roller; the plug holes are through holes arranged horizontally in the front and rear; the synchronous frame is arranged on the rear side of the roller at the rear; the synchronous frame is slidably installed on the bracket in the front and rear direction; A synchronous hydraulic rod is provided on the rear side of the synchronous frame; the synchronous hydraulic rod is fixed on the bracket, and the piston rod of the synchronous hydraulic rod is fixedly connected to the synchronous frame; the placement block is arranged under the synchronous frame and is at the rear side of the rear roller; a vertically arranged lifting hydraulic rod is connected between the placement block and the synchronous frame; a plug rod is fixed to the front end of the placement block; the plug rod is arranged horizontally front and back; the plug rod is inserted into the socket; a connecting assembly is arranged between the synchronous frame and the clamping rod; the connecting assembly is used to make the clamping rod move synchronously with the synchronous frame, and when the graphite film is cut and clamped, the clamping rod and the synchronous frame are separated.

2. A winding and tightening device for graphite film production according to claim 1, characterized in that: The synchronous frame is a U-shaped frame with the opening facing downward; a switching motor is fixed on the bracket; the output shaft of the switching motor is fixedly connected to the main shaft; a winding motor is arranged at one end of the auxiliary rod away from the center of the main shaft; the winding motor is fixed on the switching disk, and the output shaft of the winding motor is fixedly connected to the auxiliary rod; two buckle structures are symmetrically arranged on the left and right; the buckle structures are arranged at both ends of the clamping rod, including a clamping rod and a clamping cavity; Two clamping rods are symmetrically arranged in front and back; an avoidance gap is arranged between the two clamping rods; the clamping rod is an elastic rod; the clamping rod is arranged in a radially parallel direction to the clamping rod; one end of the clamping rod close to the clamping rod is fixed on the side wall of the clamping rod; one end away from the clamping rod is provided with a clamping block; the clamping block is fixed on the side wall of the clamping rod away from the avoidance gap; the upper end of the clamping block is wedge-shaped; The card cavity is arranged in the roller, and is arranged on the side of the clamping groove close to the axis of the roller; the card cavity is a rectangular cavity, and the width of the card cavity in the front-to-back direction is greater than the distance between the ends of the card blocks on the two card rods that are away from each other; a connecting hole is provided between the card cavity and the clamping groove; the connecting hole connects the card cavity and the clamping groove; the aperture of the connecting hole is smaller than the distance between the ends of the card blocks on the two card rods that are away from each other, and is greater than the distance between the ends of the card blocks on the two card rods that are away from each other after the ends of the two card rods that are away from the clamping rod are deformed, approached and abutted.

3. A winding and tightening device for graphite film production according to claim 2, characterized in that: The connection assembly includes a limit groove, a limit strip, and an intermediate tube; There are two limit grooves, which are distributed at both ends of the clamping rod; the limit grooves are annular grooves, which are opened on the side walls at both ends of the clamping rod; Two limit strips are symmetrically arranged at the two ends of the clamping rod; the limit strips are arranged front and back and fixed on the bracket and are located below the clamping rod; the limit strips are stuck in the limit groove of the clamping rod of the rear winding mechanism; The intermediate tube is arranged on the side of the limiting groove away from the center of the clamping rod; the intermediate tube and the clamping rod are coaxial; the intermediate tube and the clamping rod are slidably matched along the axis of the clamping rod through splines; a matching strip is arranged below the intermediate tube; the matching strip is fixed on the bracket in front and back arrangement; the intermediate tube is slidably mounted on the matching strip; the matching strip includes a connecting section and a disengaging section; the connecting section is arranged at the rear end of the matching strip, and the disengaging section is arranged at the front end of the matching strip; the front end of the connecting section and the rear end of the disengaging section are fixedly connected; the connecting section is parallel to the limiting strip, and the disengaging section is arranged obliquely away from the limiting strip; A connecting motor is arranged at one end of the intermediate cylinder away from the center of the clamping rod; the connecting motor is fixed on the synchronous frame; the output shaft of the connecting motor and the intermediate cylinder are slidably matched along the axis of the clamping rod.

4. A winding and tightening device for graphite film production according to claim 3, characterized in that: The synchronization mechanism also includes a smoothing component; the smoothing component is arranged on the clamping rod, and when the graphite film is rolled up, the smoothing component smoothes and combs the graphite film on the left and right sides below the graphite film.

5. A winding and tightening device for graphite film production according to claim 4, characterized in that: The smoothing assembly includes a smoothing groove; the smoothing groove is arranged on the side of the upper end of the side wall of the clamping rod away from the switching disk; two smoothing structures are arranged in the smoothing groove and are symmetrical to each other; the smoothing structure includes a plurality of smoothing strips distributed along the axis of the clamping rod; The smoothing strip is an elastic strip; the smoothing strip is arc-shaped and is arranged in the smoothing groove with an up-down tilt; the smoothing strip protrudes out of the smoothing groove; the smoothing strips of the two smoothing structures are in a V-shape with the opening facing backwards; the upper end of the smoothing strip is fixed on the clamping rod, and the lower end is slidably installed in the smoothing groove along the axis direction of the clamping rod.

6. The winding and tightening device for graphite film production according to claim 1, characterized in that: The synchronization mechanism also includes a switching assembly; the switching assembly includes a switching plate; The switching plate is arranged below the synchronous frame and is located at the rear side of the rear winding roller; the switching plate is an arc-shaped plate; a horizontally arranged switching hydraulic rod is connected between the switching plate and the synchronous frame.

7. The winding and tightening device for graphite film production according to claim 1, characterized in that: A centralizing plate is provided at the front end of the bracket; two vertical plates are arranged symmetrically at the left and right sides of the centralizing plate; the upper end of the centralizing plate is an inclined wall; the centralizing plate is V-shaped with the small end facing forward; the rear end of the centralizing plate is arranged below the switching disk and is fixedly connected to the front end of the baffle; an arc-shaped stop plate is fixed at the front end of the inclined wall of the centralizing plate.

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