Pretreatment device for graphene circuit board base material

Abstract

The invention discloses a pretreatment device for a graphene circuit board base material, and relates to the technical field of circuit board base material pretreatment. Comprising a fixed shell; the first hydraulic push rod is fixedly connected to the fixed shell; the storage shell is arranged on one side of the fixed shell; the fixing frame is fixedly connected to the storage shell, and the fixing frame is slidably connected with a mounting plate; the second hydraulic push rod is fixedly connected to the mounting plate, and the telescopic end of the second hydraulic push rod is fixedly connected with a liquid storage pipe; and the two piston rods are symmetrically distributed and slidably connected to the liquid storage pipe, and the piston rods are provided with air guide pipes. Through movement of the gas guide pipe, the base material is converted from the horizontal state to the bent state, after the base material makes contact with the to-be-machined part, gas between the base material and the to-be-machined part is driven from the middle to the two sides, the gas content between the base material in the horizontal state and the to-be-machined part is reduced, and the qualified rate of the base material and the to-be-machined part after hot pressing is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of pretreatment of circuit board substrates, and particularly to a pretreatment device for graphene circuit board substrates. Background Art

[0002] With the development trend of high-frequency, miniaturization and high-power of electronic devices, traditional circuit board substrates (such as FR-4 epoxy resin) gradually expose limitations in terms of thermal stability, conductivity and mechanical strength. Against this background, graphene, as a two-dimensional carbon nanomaterial, is widely regarded as an ideal candidate material for circuit board substrates because of its very high electron mobility, good thermal stability, extremely high mechanical strength, good flexibility and good chemical stability. Before using graphene substrates to prepare circuit boards, in order to enhance the stability of its mechanical structure, usually after the graphene substrates are made, the graphene substrates are laminated, laminated with other materials, so as to form a multi-layer structure, improve the anti-bending and anti-impact capabilities of the substrates, and meet the mechanical requirements of circuit board processing (such as drilling, cutting) and use. Before the graphene substrates are laminated with other materials, an appropriate amount of glue needs to be applied to the surface of other materials first, and then the graphene substrates are transported through the coordinated operation of a robotic arm and a vacuum chuck. However, the current chuck fixing method only acts on the four corners of the graphene substrates. This fixing method causes fluctuations in the unfixed positions of the graphene substrates when the robotic arm moves, resulting in slight depressions or wrinkles in the central area of the graphene substrates. When the graphene substrates contact other materials, if the deformed area first contacts the glue layer, the glue layer near the contact point cures quickly, hindering the further discharge of air, resulting in the inability of the surrounding air to be effectively discharged, forming a closed air cavity, and thus causing bubbles between the graphene substrates and other materials during the subsequent lamination process, affecting the normal use and quality of the finally prepared circuit boards. Summary of the Invention

[0003] In order to overcome the disadvantages mentioned in the above background art, the present invention provides a pretreatment device for graphene circuit board substrates.

[0004] The technical solution of the present invention is as follows: A pretreatment device for graphene circuit board substrates, comprising:

[0005] A fixed shell;

[0006] A first hydraulic push rod, fixedly connected to the fixed shell, the telescopic end of the first hydraulic push rod passes through the fixed shell, and the telescopic end of the first hydraulic push rod is fixedly connected to a hot pressing member that slides within the fixed shell;

[0007] A transportation module, arranged on the lower side of the fixed shell;

[0008] A storage shell, arranged on one side of the fixed shell;

[0009] A fixing bracket is fixedly connected to the storage shell. The fixing bracket is slidably connected with a mounting plate, and a driving module for driving the mounting plate to move is jointly provided by the fixing bracket and the fixed shell;

[0010] A second hydraulic push rod is fixedly connected to the mounting plate, and a liquid storage pipe is fixedly connected to the telescopic end of the second hydraulic push rod;

[0011] There are two symmetrically distributed piston rods, both of which are slidably connected to the liquid storage pipe. A first tension spring is fixedly connected between the piston rod and the liquid storage pipe. The piston rod is provided with an air guide pipe, and several suction cups are provided on the air guide pipe.

[0012] Furthermore, the minimum distances between the two air guide pipes and the liquid storage pipe are equal.

[0013] Furthermore, it further includes:

[0014] There are two symmetrically distributed racks, which are respectively fixedly connected to both ends of the liquid storage pipe. The air guide pipe is rotatably connected to the adjacent piston rod;

[0015] There are two symmetrically distributed gears, which are respectively fixedly connected to the adjacent air guide pipes. The gears are meshed with the adjacent racks.

[0016] Furthermore, it further includes:

[0017] An air delivery pipe is fixedly connected to the lower side of the liquid storage pipe, and several air outlet holes are provided on the lower side of the air delivery pipe.

[0018] Furthermore, the several air outlet holes on the air delivery pipe are symmetrically distributed, and the angle between the air outlet holes and the horizontal plane decreases from the middle to both sides.

[0019] Furthermore, it further includes:

[0020] A fixing rod is fixedly connected to the liquid storage pipe;

[0021] There are two symmetrically distributed moving brackets, both of which are limitedly slidably connected to the fixed shell. Connecting blocks are fixedly connected to the opposite sides of the two moving brackets. The fixed shell and the connecting blocks are both provided with sliding grooves for the fixing rod to move, and the sliding grooves on the two are communicated. The connecting blocks are located on the moving path of the fixing rod, and the connecting blocks are used to limit the fixing rod. A second tension spring is fixedly connected between the moving bracket and the fixed shell;

[0022] There are two symmetrically distributed exhaust pipes, which are respectively fixedly connected to the adjacent moving brackets. Several exhaust holes are provided on the opposite sides of the two exhaust pipes.

[0023] Further, the axes of a plurality of exhaust holes on the exhaust pipe are not perpendicular to the horizontal plane.

[0024] Further, when the connecting block limits the position of the fixed rod, a plurality of exhaust holes on the exhaust pipe and a plurality of suction cups on the adjacent air guide pipe are staggered.

[0025] Further, it further includes:

[0026] Electric rotating shafts, there are two symmetrically distributed, both are rotatably connected to the liquid storage pipe, the electric rotating shafts are rotatably connected to the fixed rod, the electric rotating shafts are provided with external threads, and a moving ring is threadedly connected to the electric rotating shafts through the external threads thereon, and the moving ring is slidably connected to the fixed rod;

[0027] Third hydraulic push rods, there are two, respectively fixedly connected to the adjacent moving rings;

[0028] Pressing rollers, there are two, respectively rotatably connected to the telescopic ends of the adjacent third hydraulic push rods.

[0029] Further, the angles between the two third hydraulic push rods and the horizontal plane are not 90°, and the angles of the two are different.

[0030] Compared with the prior art, the present invention has at least the following beneficial effects: Through the movement of the air guide pipe, the base material is converted from a horizontal state to a bent state. After the base material contacts the workpiece to be processed, the gas between the two is driven from the middle to both sides, reducing the gas content between the base material and the workpiece to be processed after the base material is in a horizontal state, and increasing the qualified rate after hot pressing of the base material and the workpiece to be processed.

[0031] Through the gas discharged from the exhaust pipe, before the two sides of the base material contact the workpiece to be processed, there is always a tendency to bend upward, reducing the amplitude of the top angle of the base material falling downward under the action of its own gravity, thereby reducing the folding situation of the base material when it contacts the workpiece to be processed. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0033] Figure 2 is a three-dimensional structural sectional view of the fixed shell of the present invention;

[0034] Figure 3 is a three-dimensional structural schematic diagram of the fixing frame and the mounting plate of the present invention;

[0035] Figure 4 is a three-dimensional structural schematic diagram of the liquid storage pipe and the piston rod of the present invention;

[0036] Figure 5This is a three-dimensional structural sectional view of the liquid storage tube of the present invention;

[0037] Figure 6 This is a three-dimensional structural schematic diagram of the piston rod and the first tension spring of the present invention;

[0038] Figure 7 This is a three-dimensional structural sectional view of the gas transmission pipe of the present invention;

[0039] Figure 8 This is a three-dimensional structural schematic diagram of the moving frame and the second tension spring of the present invention;

[0040] Figure 9 This is a three-dimensional structural schematic diagram of the third hydraulic push rod and the pressure roller of the present invention;

[0041] Figure 10 This is a three-dimensional structural schematic diagram of the cooperation relationship between the fixed rod and the connecting block of the present invention.

[0042] The markings in the figure are: 1 - fixed shell, 101 - first hydraulic push rod, 2 - hot pressing part, 3 - transportation module, 4 - storage shell, 5 - fixed frame, 7 - mounting plate, 8 - second hydraulic push rod, 9 - air guide pipe, 10 - liquid storage tube, 11 - piston rod, 12 - first tension spring, 13 - rack, 14 - gear, 15 - gas transmission pipe, 151 - fixed rod, 16 - moving frame, 161 - connecting block, 17 - second tension spring, 18 - exhaust pipe, 19 - electric rotating shaft, 20 - moving ring, 21 - third hydraulic push rod, 22 - pressure roller. Detailed implementation manners

[0043] To make the objectives, technical solutions, and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with the specific implementation manners and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary and are not intended to limit the scope of the present invention. In addition, in the following descriptions, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present invention.

[0044] Example 1: A pretreatment device for a graphene circuit board substrate, as Figures 1-6As shown in the figure, it includes: a fixed housing 1; a first hydraulic push rod 101 fixedly connected to the fixed housing 1. The telescopic end of the first hydraulic push rod 101 passes through the fixed housing 1, and a hot pressing member 2 that slides within the fixed housing 1 is fixedly connected to the telescopic end of the first hydraulic push rod 101; a transportation module 3 is arranged on the lower side of the fixed housing 1; a storage housing 4 is arranged on one side of the fixed housing 1; a fixing frame 5 is fixedly connected to the storage housing 4, and a mounting plate 7 is slidably connected to the fixing frame 5. A driving module for driving the movement of the mounting plate 7 is jointly provided by the fixing frame 5 and the fixed housing 1; a second hydraulic push rod 8 is fixedly connected to the mounting plate 7, and a liquid storage pipe 10 is fixedly connected to the telescopic end of the second hydraulic push rod 8; there are two piston rods 11 that are symmetrically distributed, both of which are slidably connected to the liquid storage pipe 10. A first tension spring 12 is fixedly connected between the piston rod 11 and the liquid storage pipe 10. The piston rod 11 is provided with a gas guide pipe 9, and several suction cups are arranged on the gas guide pipe 9.

[0045] In the above solution, the hot pressing member 2 is an existing device, and its working principle will not be described in detail; the transportation module 3 is an existing device, which is represented by a conveyor belt in the figure. The transportation module 3 is used to transport workpieces to be processed that are to be pressed with the graphene circuit board substrate (the specific material and type of the workpiece to be processed are selected by the staff according to actual needs); the storage housing 4 is located on the right side of the fixed housing 1, and the storage housing 4 is used to store the graphene circuit board substrate (subsequently described as the substrate in the text); the driving module is an existing device, which is shown by an electric rotating shaft provided with an external thread in the figure; the mounting plate 7 is an L-shaped plate, and the mounting plate 7 is composed of a vertical part and a horizontal part. Its vertical part is slidably connected to the fixing frame 5, and the second hydraulic push rod 8 is located on the horizontal part of the mounting plate 7; the gas guide pipe 9 is externally connected to a gas supply device. The gas guide pipe 9 is a U-shaped pipe, and the suction cups on the gas guide pipe 9 are arranged in two that are symmetrically distributed left and right. The substrate is adsorbed and fixed by the gas guide pipe 9 and the two suction cups thereon; hydraulic oil is stored in the liquid storage pipe 10, and the liquid storage pipe 10 is communicated with an external hydraulic pump; the two piston rods 11 are symmetrically distributed front and back; the two first tension springs 12 are used to make the two piston rods 11 move the same distance in the same time, so as to ensure the stability of the position of the center point of the connection line of the two piston rods 11.

[0046] As Figure 5 shown, the minimum distances between the two gas guide pipes 9 and the liquid storage pipe 10 are equal, ensuring that the lowest point after the substrate is bent is directly below the liquid storage pipe 10.

[0047] In this embodiment, the piston rod 11 is fixedly connected to the adjacent gas guide pipe 9.

[0048] The specific working process of the above solution is as follows:

[0049] When it is necessary to use this device to laminate the base material and the workpiece to be processed, the staff places a quantitative base material in the storage shell 4, and sequentially places the corresponding number of workpieces to be processed on the transportation module 3. Subsequently, the staff starts the transportation module 3, and the transportation module 3 transports the workpieces thereon forward until the workpiece at the frontmost side of the transportation module 3 moves to the processing position (that is, when the center point of the workpiece to be processed at the frontmost side of the transportation module 3 is located on the central axis in the vertical direction of the fixed shell 1), the staff shuts down the transportation module 3.

[0050] After shutting down the transportation module 3, the staff starts the second hydraulic push rod 8. The telescopic end of the second hydraulic push rod 8 drives the liquid storage pipe 10 to move downward, and the liquid storage pipe 10 drives the two air guide pipes 9 to move downward synchronously through the two piston rods 11 thereon until the suction cups on the two air guide pipes 9 move downward to contact the base material and deform under the extrusion of the base material (at this time, the suction cups on the two air guide pipes 9 are respectively in contact with the front and rear sides of the base material). Then the staff shuts down the second hydraulic push rod 8 and simultaneously starts the air supply device. The air supply device pumps out the gas in the two air guide pipes 9, making the internal environment of the two air guide pipes 9 in a negative pressure working environment, so as to adsorb and fix the uppermost base material.

[0051] After fixing the base material, the staff shuts down the air supply device and controls the telescopic end of the second hydraulic push rod 8 to move upward. The telescopic end of the second hydraulic push rod 8 drives the base material to move upward until the telescopic end of the second hydraulic push rod 8 moves to the initial position. Then the staff shuts down the second hydraulic push rod 8 and starts the external hydraulic pump. The external hydraulic pump pumps out the hydraulic oil in the liquid storage pipe 10, so that the two piston rods 11 approach each other and stretch the two first tension springs 12 to store energy. During the movement of the two piston rods 11, they respectively drive the air guide pipes 9 thereon to move, thereby driving the front and rear ends of the adsorbed base material to approach each other, so that the middle part of the adsorbed base material can bend downward under the action of its own gravity (that is, making the base material in an arc shape). After the two piston rods 11 move a specified distance (the specific distance is set by the staff according to the actual production requirements), the staff shuts down the external hydraulic pump, thereby fixing the base material in the bent state.

[0052] After the staff shuts down the external hydraulic pump, the staff starts the driving module, which drives the mounting plate 7 to move leftward. Thereby, the mounting plate 7 drives the sucked base material to move leftward through other parts connected thereto. When the mounting plate 7 moves to the leftmost side (at this time, the second hydraulic push rod 8 and other parts connected thereto are all located inside the fixed housing 1), the staff shuts down the driving module and starts the second hydraulic push rod 8 again. The telescopic end of the second hydraulic push rod 8 drives the base material to move slowly downward. When the lower side of the middle part of the base material (the lowest point of the bent base material) moves downward to contact the upper side of the workpiece to be processed, the middle part of the base material is squeezed by the workpiece to be processed and cannot continue to move downward, and it reversely squeezes the bent base material, so that the middle part of the base material is converted from a bent state to a horizontal state. At the same time, the staff starts the external hydraulic pump, and the external hydraulic pump slowly injects hydraulic oil into the liquid storage pipe 10, so that the two piston rods 11 are slowly reset (during this process, the two first tension springs 12 gradually return to the non-stretched state), thereby gradually adjusting the bent base material to a horizontal state. At the same time, the position where the base material contacts the workpiece to be processed gradually spreads from the middle to both sides, gradually increasing the contact area between the base material and the workpiece to be processed. At the same time, it also makes the gas between the base material and the workpiece to be processed gradually driven from the middle to both sides during the movement of the base material, reducing the gas content between the base material and the workpiece to be processed after the base material is in a horizontal state, and increasing the qualified rate after hot pressing of the base material and the workpiece to be processed.

[0053] After laying the base material on the workpiece to be processed (after the two piston rods 11 are reset to the initial positions relative to the liquid storage pipe 10), the staff shuts down the external hydraulic pump and starts the air supply device. The air supply device injects air into the two air guide pipes 9, so that the air pressure in the two air guide pipes 9 gradually returns to the initial air pressure, thereby enabling the suction cups on the two air guide pipes 9 to gradually separate from the base material. Subsequently, the staff starts the second hydraulic push rod 8, and the telescopic end of the second hydraulic push rod 8 drives the two air guide pipes 9 to move upward through the liquid storage pipe 10, so that the suction cups on the two air guide pipes 9 are separated from the base material.

[0054] After the two air guide pipes 9 are separated from the base material, the staff shuts down the external air supply device. After the telescopic end of the second hydraulic push rod 8 moves upward to the limit position, the staff shuts down the second hydraulic push rod 8 again and starts the driving module. The driving module drives the two air guide pipes 9 to reset to the initial position to the right, and then shuts down the driving module.

[0055] After the two air ducts 9 are reset to the initial position to the right, the staff activates the first hydraulic push rod 101. The telescopic end of the first hydraulic push rod 101 drives the hot pressing member 2 to move downward. When the hot pressing member 2 moves downward to the limit position (that is, when the hot pressing member 2 moves downward to a position where it is in close contact with the base material), the staff shuts down the first hydraulic push rod 101 and activates the hot pressing member 2. The hot pressing member 2 performs hot pressing on the base material and the workpiece to be processed. After the hot pressing is completed, the staff controls the first hydraulic push rod 101, and the telescopic end of the first hydraulic push rod 101 drives the hot pressing member 2 to reset to the initial position.

[0056] After one hot pressing is completed, the staff activates the transportation module 3. The transportation module 3 transports the hot-pressed base material to the next working process, and transports the remaining non-hot-pressed base materials and workpieces to the working position according to the above operations, and performs hot pressing on the remaining base materials according to the above operations. After the device is used up, the staff shuts down the device and cleans and maintains the device for subsequent use.

[0057] Embodiment 2: On the basis of Embodiment 1, as Figure 4 and Figure 6 shown, it further includes: racks 13, two of which are symmetrically distributed and are respectively fixedly connected to both ends of the liquid storage pipe 10. The air duct 9 is rotatably connected to the adjacent piston rod 11; gears 14, two of which are symmetrically distributed and are respectively fixedly connected to the adjacent air ducts 9. The gears 14 are meshed with the adjacent racks 13.

[0058] In the above solution, the two racks 13 are symmetrically distributed front and back; in the process of the two piston rods 11 driving the air ducts 9 thereon to approach each other, the two air ducts 9 respectively drive the gears 14 thereon to move synchronously, so that the two gears 14 rotate respectively under the action of the adjacent racks 13 (taking the perspective from right to left in Figure 1 as the reference perspective, the front gear 14 rotates clockwise, and the rear gear 14 rotates counterclockwise), and the two gears 14 respectively drive the adjacent air ducts 9 to rotate synchronously, and the two air ducts 9 respectively drive one side of the base material to swing, thereby increasing the uniformity of the arc formed after the base material is bent, and reducing the stress at the part where the suction cup on the air duct 9 contacts the base material after the base material is bent, so as to ensure the normal use of the base material.

[0059] Embodiment 3: On the basis of Embodiment 2, as Figure 5 and Figure 7 shown, it further includes: an air delivery pipe 15, which is fixedly connected to the lower side of the liquid storage pipe 10. A plurality of air outlet holes are provided on the lower side of the air delivery pipe 15. The air delivery pipe 15 is communicated with an external air supply device.

[0060] As Figure 7As shown, a plurality of air outlet holes on the gas delivery pipe 15 are symmetrically distributed, and the angle between the air outlet holes and the horizontal plane decreases from the middle to both sides, and all the air outlet holes on the gas delivery pipe 15 face downward.

[0061] The specific working process of the above solution is as follows:

[0062] After the substrate is sucked by the two air guide pipes 9 and the suction cups on them, the staff starts the external air supply device, and the external air supply device conveys gas into the gas delivery pipe 15 and discharges it downward along a plurality of air outlet holes on the gas delivery pipe 15, so as to guide this part of the gas to the middle of the substrate, improve the accuracy of the bending part of the substrate (make the center point of the substrate coincide with the center point of the bending part), thereby increasing the uniformity of the deformation of the substrate and reducing the degree of deformation when contacting the workpiece to be processed subsequently.

[0063] After covering the substrate on the workpiece to be processed, the staff shuts down the external air supply device and no longer conveys gas into the gas delivery pipe 15.

[0064] Embodiment 4: On the basis of Embodiment 3, the present invention considers that after the substrate is sucked by the suction cups on the two air guide pipes 9, when the lower side of the suction cup is not stressed, the four top corners of the substrate are prone to bend downward under the action of its own gravity, resulting in folding when the substrate contacts the workpiece to be processed. To solve this problem, the following measures are taken:

[0065] As Figure 2 、 Figure 9 and Figure 10 shown, it further includes: a fixed rod 151 fixedly connected to the liquid storage pipe 10, and the fixed shell 1 is provided with a sliding groove for the fixed rod 151 to slide; there are two symmetrically distributed movable frames 16, both of which are limited and slidably connected to the fixed shell 1, and connecting blocks 161 are fixedly connected to the opposite sides of the two movable frames 16. The fixed shell 1 and the connecting blocks 161 are both provided with sliding grooves for the fixed rod 151 to move, and the sliding grooves on them are communicated. The connecting block 161 is located on the moving path of the fixed rod 151, and the connecting block 161 is used to limit the fixed rod 151. A second tension spring 17 is fixedly connected between the movable frame 16 and the fixed shell 1; there are two symmetrically distributed exhaust pipes 18, which are respectively fixedly connected to the adjacent movable frames 16, and a plurality of exhaust holes are provided on the opposite sides of the two exhaust pipes 18.

[0066] In the above solution, the movable frame 16 can only slide up and down on the fixed shell 1, and the pulling force of the second tension spring 17 is greater than the gravity of the adjacent movable frame 16 and other parts connected thereto, so that the movable frame 16 is in the uppermost side initially; the specific number of exhaust holes on the exhaust pipe 18 is specifically selected by the staff, and three are taken as examples in both the figure and the text. The exhaust pipe 18 is communicated with the external air supply device.

[0067] AsFigure 8 As shown, the axes of several exhaust holes on the exhaust pipe 18 are not perpendicular to the horizontal plane. The angle between the exhaust holes on the exhaust pipe 18 and the horizontal plane can be specifically selected by the staff to guide the gas to the front and back sides of the substrate.

[0068] As Figure 8 and Figure 9 shown, when the connecting block 161 limits the fixed rod 151, several exhaust holes on the exhaust pipe 18 and several suction cups on the adjacent air duct 9 are staggered, so that the gas blown out from the exhaust holes on the exhaust pipe 18 blows on both sides of the adjacent suction cups on the adjacent air duct 9.

[0069] The specific working process of the above solution is as follows:

[0070] During the process of the mounting plate 7 driving the liquid storage pipe 10 to move leftward, the liquid storage pipe 10 drives the fixed rod 151 to move leftward synchronously. When the front and rear ends of the fixed rod 151 respectively contact the sliding grooves on the front and back sides of the fixed housing 1, the fixed rod 151 moves leftward along the sliding grooves of the fixed housing 1. When the mounting plate 7 moves leftward to the limit position, the front and rear ends of the fixed rod 151 respectively enter the sliding grooves of the adjacent connecting blocks 161. Subsequently, the staff controls the external air supply device to supply gas into the two exhaust pipes 18 and discharge it obliquely upward along the exhaust holes on the two exhaust pipes 18, so that this part of the gas blows the front and back sides of the substrate, providing an upward acting force on the front and back sides of the substrate, reducing the amplitude of the downward bending of the front and back sides of the substrate. At the same time, during the process of the liquid storage pipe 10 moving downward, the liquid storage pipe 10 drives the two moving frames 16 to move downward synchronously through the fixed rod 151, so that the two second tension springs 17 are stretched and stored with energy, and the two moving frames 16 respectively drive the adjacent exhaust pipes 18 to move downward synchronously, so that the gas discharged from the exhaust holes of the two exhaust pipes 18 can always contact the front and back sides of the substrate, so that the front and back sides of the substrate always have a tendency to bend upward before contacting the workpiece to be processed.

[0071] During the process of laying the substrate on the workpiece to be processed, as the distance between the two piston rods 11 gradually increases, the staff gradually reduces the power of the external air supply device, gradually reduces the outflow speed and volume of the gas in the exhaust holes on the two exhaust pipes 18, thereby gradually reducing the bending radian of the front and back sides of the substrate. Until the distance between the piston rods 11 increases to the maximum, the staff shuts down the external air supply device, so that the front and back sides of the substrate naturally fall on the workpiece to be processed under the action of gravity. Subsequently, the staff performs hot pressing treatment on the workpiece to be processed and the substrate according to the above operation.

[0072] After hot pressing is completed, the staff resets the liquid storage pipe 10 to the initial position according to the above operation. During the process of the liquid storage pipe 10 moving upward, the liquid storage pipe 10 drives the moving frame 16 to reset upward, and the second tension spring 17 gradually returns to the non-stretched state for subsequent use.

[0073] Example 5: On the basis of Example 4, as Figure 3 and Figure 9 shown, it further includes: two electric rotating shafts 19, symmetrically distributed, both rotatably connected to the liquid storage pipe 10, the electric rotating shaft 19 is rotatably connected to the fixed rod 151, the electric rotating shaft 19 is provided with external threads, and the electric rotating shaft 19 is threadedly connected with a moving ring 20 through the external threads thereon; two third hydraulic push rods 21, respectively fixedly connected to adjacent moving rings 20, the moving ring 20 is slidably connected to the fixed rod 151; two pressing rollers 22, respectively rotatably connected to the telescopic ends of adjacent third hydraulic push rods 21.

[0074] In the above solution, the two electric rotating shafts 19 are symmetrically distributed front and back. When the telescopic ends of the two third hydraulic push rods 21 are fully extended (the telescopic ends of the two third hydraulic push rods 21 cannot be fully extended simultaneously), the two pressing rollers 22 are flush.

[0075] As Figure 9 shown, the angles between the two third hydraulic push rods 21 and the horizontal plane are both not 90°, and the angles of the two are different. The angle between the front third hydraulic push rod 21 and the horizontal plane is greater than the angle between the rear third hydraulic push rod 21 and the horizontal plane. When the telescopic end of the front third hydraulic push rod 21 is fully extended, the front pressing roller 22 is located directly below the gas transmission pipe 15. When the telescopic end of the rear third hydraulic push rod 21 is fully extended, the rear pressing roller 22 is located in front of the gas transmission pipe 15.

[0076] The specific working process of the above solution is as follows:

[0077] During the movement of the liquid storage pipe 10, the liquid storage pipe 10 drives the two electric rotating shafts 19 to move, and the two electric rotating shafts 19 and the fixed rod 151 jointly drive the two moving rings 20 to move. The moving ring 20 drives the adjacent pressing rollers 22 to move synchronously through the third hydraulic push rod 21 thereon.

[0078] After covering the substrate on the workpiece to be processed, the staff activates the third hydraulic push rod 21 on the front side. The telescopic end of the third hydraulic push rod 21 on the front side drives the pressure roller 22 on the front side to move downward and backward. After the telescopic end of the third hydraulic push rod 21 moves to the limit position, the staff shuts down the third hydraulic push rod 21 on the front side (at this time, the lower side of the front pressure roller 22 contacts the middle of the substrate). Subsequently, the staff activates the electric rotating shaft 19 on the front side. During the rotation of the electric rotating shaft 19 on the front side, the external thread on it drives the moving ring 20 on the front side to move forward synchronously, thereby driving the third hydraulic push rod 21 on the front side to move forward, and the third hydraulic push rod 21 on the front side drives the front pressure roller 22 to move forward synchronously. During the forward movement of the pressure roller 22, the front part of the substrate is roll-pressed to further expel the air between the substrate and the workpiece to be processed, thereby further reducing the defective rate after hot pressing the substrate and the workpiece to be processed.

[0079] After the front pressure roller 22 moves forward to the limit position, the staff controls the third hydraulic push rod 21 on the front side to drive the front pressure roller 22 to reset to the initial position relative to the moving ring 20 on the front side. Subsequently, the staff controls the electric rotating shaft 19 on the front side to rotate, so that the moving ring 20 on the front side moves backward to reset.

[0080] After the moving ring 20 on the front side moves backward to the limit position, the staff changes the position of the rear pressure roller 22 according to the above operation, so that the rear pressure roller 22 moves to the position where it contacts the upper side of the substrate, and rolls the rear part of the substrate according to the above operation. During the process of the rear pressure roller 22 rolling the substrate, the initial contact point between the rear pressure roller 22 and the substrate is located in front of the air delivery pipe 15, and this contact point has been roll-pressed by the front pressure roller 22, thereby increasing the coverage area when the two pressure rollers 22 roll the substrate, ensuring the uniformity and integrity of the substrate being roll-pressed, and avoiding blind spots.

[0081] After rolling the substrate, the staff resets the mounting plate 7 and other connections connected thereto to the initial position according to the above operation for subsequent use, and hot presses the substrate and the workpiece to be processed according to the above operation.

[0082] Those skilled in the art of this industry should understand that the above embodiments do not limit the present invention in any form. Any technical solutions obtained by using equivalent replacements or equivalent transformations fall within the protection scope of the present invention.

Claims

1. A graphene circuit board substrate pretreatment device, characterized in that: include: Fixed shell (1); A first hydraulic push rod (101) is fixedly connected to the fixed shell (1), the telescopic end of the first hydraulic push rod (101) passes through the fixed shell (1), and the telescopic end of the first hydraulic push rod (101) is fixedly connected to a hot pressing part (2) sliding in the fixed shell (1); A transport module (3) is arranged on the lower side of the fixed shell (1); A storage shell (4) is arranged on one side of the fixed shell (1); A fixed frame (5) is fixedly connected to the storage shell (4), the fixed frame (5) is slidably connected to a mounting plate (7), and the fixed frame (5) and the fixed shell (1) are jointly provided with a driving module for driving the mounting plate (7) to move; A second hydraulic push rod (8) is fixedly connected to the mounting plate (7), and a liquid storage tube (10) is fixedly connected to the telescopic end of the second hydraulic push rod (8); The piston rod (11) has two symmetrically distributed ones, both of which are slidably connected to the liquid storage tube (10), a first tension spring (12) is fixedly connected between the piston rod (11) and the liquid storage tube (10), the piston rod (11) is provided with an air guide tube (9), and the air guide tube (9) is provided with a plurality of suction cups.

2. A graphene circuit board substrate pretreatment device according to claim 1, characterized in that: The minimum distances between the two air guide tubes (9) and the liquid storage tube (10) are equal.

3. A graphene circuit board substrate pretreatment device according to claim 2, characterized in that: Also includes: Two racks (13) are symmetrically distributed and fixed to the two ends of the liquid storage tube (10) respectively. The air guide tube (9) is rotatably connected to the adjacent piston rod (11); The gears (14) are provided with two symmetrically distributed gears, which are respectively fixed to the adjacent air guide tubes (9), and the gears (14) are meshed with the adjacent racks (13).

4. A graphene circuit board substrate pretreatment device according to claim 3, characterized in that: Also includes: The air delivery pipe (15) is fixedly connected to the lower side of the liquid storage pipe (10), and a plurality of air outlet holes are arranged on the lower side of the air delivery pipe (15).

5. A graphene circuit board substrate pretreatment device according to claim 4, characterized in that: The plurality of air outlet holes on the air delivery pipe (15) are symmetrically distributed, and the angles between the air outlet holes and the horizontal plane decrease from the middle to both sides.

6. A graphene circuit board substrate pretreatment device according to claim 4, characterized in that: Also includes: A fixing rod (151) fixedly connected to the liquid storage tube (10); The movable frame (16) has two symmetrically distributed frames, both of which are limitedly slidably connected to the fixed shell (1), and the opposite sides of the two movable frames (16) are fixedly connected with connecting blocks (161), and the fixed shell (1) and the connecting blocks (161) are both provided with sliding grooves for the movement of the fixed rod (151), and the sliding grooves on the two are connected, and the connecting blocks (161) are located on the moving path of the fixed rod (151), and the connecting blocks (161) are used for limiting the position of the fixed rod (151), and a second tension spring (17) is fixedly connected between the movable frame (16) and the fixed shell (1); The exhaust pipes (18) are provided with two symmetrically distributed ones, which are respectively fixed to the adjacent movable frames (16), and the facing sides of the two exhaust pipes (18) are both provided with a plurality of exhaust holes.

7. A graphene circuit board substrate pretreatment device according to claim 6, characterized in that: The axes of the plurality of exhaust holes on the exhaust pipe (18) are not perpendicular to the horizontal plane.

8. A graphene circuit board substrate pretreatment device according to claim 7, characterized in that: When the connection block (161) limits the position of the fixing rod (151), the plurality of exhaust holes on the exhaust pipe (18) and the plurality of suction cups on the adjacent air guide pipe (9) are distributed in an alternating manner.

9. A graphene circuit board substrate pretreatment device according to claim 6, characterized in that: Also includes: The electric rotating shaft (19) has two symmetrically distributed shafts, both of which are rotatably connected to the liquid storage tube (10). The electric rotating shaft (19) is rotatably connected to the fixed rod (151). The electric rotating shaft (19) is provided with an external thread. The electric rotating shaft (19) is threadably connected to the moving ring (20) through the external thread thereon. The movable ring (20) is slidably connected to the fixed rod (151); There are two third hydraulic push rods (21), which are respectively fixed to adjacent moving rings (20); There are two pressure rollers (22), which are rotatably connected to the telescopic ends of the adjacent third hydraulic push rods (21).

10. A graphene circuit board substrate pretreatment device according to claim 9, characterized in that: The included angles between the two third hydraulic push rods (21) and the horizontal plane are not 90°, and the two included angles are different.

Images