Production device and preparation process of composite hard film

Abstract

The invention relates to the technical field of composite hard film production, in particular to a composite hard film production device and a preparation process thereof, the composite hard film production device is used for coating a base material with an adhesive, the composite hard film production device comprises a frame body and a transverse table arranged on the frame body and used for bearing the base material, and the composite hard film production device further comprises a cross beam arranged on the frame body in the width direction of the frame body, an assembling plate is movably arranged on the cross beam, the assembling plate can be driven by a transverse moving driving mechanism arranged on the cross beam to move in the width direction of the frame body, and a rubber roller is rotationally installed on the assembling plate and connected with a rotating driving mechanism arranged on the assembling plate; according to the invention, the orderly cooperation of gluing and glue supplementing is realized, the problems of high cost, fragility, cleaning difficulty, high requirements on environment and operation and the like when an anilox roller method is used are avoided, the gluing uniformity is also ensured, the phenomena of streaks or fish maw on the paper surface caused by scraper abrasion, non-straight installation or local abrasion and the like are avoided, and the production efficiency is improved. And the final product quality is influenced.

Description

Technical Field

[0001] The invention relates to the technical field of composite hard film production, in particular to a composite hard film production device and a preparation process thereof. Background Art

[0002] Composite hard film is a thin film made by combining multiple materials and technologies, which has excellent mechanical properties, wear resistance and high temperature oxidation resistance. This type of film is usually used in applications such as tools and molds that require high hardness and wear resistance.

[0003] In the production of composite hard film, adhesive needs to be coated on the substrate to facilitate pressurized lamination. Nowadays, the anilox roller method is usually used for coating adhesive. Although the anilox roller has the advantages of wear resistance and corrosion resistance, it is necessary to pay attention to its high cost, fragility, difficulty in cleaning, and high requirements for the environment and operation during use. Or use a scraper to evenly apply the glue on the roller surface, and then transfer it to the substrate through the rotation of the roller. However, the scraper may be worn, unevenly installed, or locally worn during use, resulting in streaks or glue on the paper surface, affecting the quality of the final product. Summary of the invention

[0004] The object of the present invention is to provide a production device for a composite hard film and a preparation process thereof to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A composite hard film production device, used for coating an adhesive onto a substrate, comprises a frame and a horizontal platform provided on the frame for carrying the substrate, and further comprises: A crossbeam is arranged on the frame and arranged along the width direction of the frame, a mounting plate is movably arranged on the crossbeam, the mounting plate can be driven by a transverse driving mechanism arranged on the crossbeam to move along the width direction of the frame, and a rubber roller is rotatably mounted on the mounting plate, and the rubber roller is connected to a rotating driving mechanism arranged on the mounting plate; A box body is arranged on one side of the frame body and is used to contain adhesive. A gluing position and a gluing position of the adhesive roller are formed above the horizontal platform and the box body respectively. The adhesive roller can be driven by an electric mechanism arranged on the horizontal beam to vertically rise and fall when it is at the gluing position and the gluing position. When the adhesive roller is at the gluing position and is vertically rising and falling, the rotary drive mechanism is triggered to drive the adhesive roller to rotate. The liquid level lifting mechanism is arranged in the box body. Whenever the glue roller completes glue filling and moves from the glue filling position toward the glue coating position, the liquid level lifting mechanism is triggered to cause the adhesive liquid level in the box body to rise.

[0006] As a further solution of the present invention: the transverse driving mechanism includes a guide rail arranged on the crossbeam and a transverse seat slidably engaged in the guide rail, and the transverse seat is connected to a threaded driving member installed on the crossbeam, and the threaded driving member can drive the transverse seat to slide along the guide rail so that the glue roller can switch between the glue coating position and the glue filling position.

[0007] As a further solution of the present invention: the electric mechanism comprises two electric push rods mounted on the transverse seat, the movable ends of the two electric push rods are fixedly connected to a cross arm, the cross arm is connected to the assembly plate through an elastic structure, and the assembly plate is also connected to the rotation drive mechanism; Wherein, an arc-shaped recess is respectively provided on both sides of the box body, and the arc-shaped recess is adapted to the assembly plate.

[0008] As a further solution of the present invention: the elastic structure includes two columns fixedly mounted on the assembly plate and two cylindrical springs respectively sleeved on the outer circumferences of the two columns, the two columns respectively pass through two kits arranged on the cross arm, the kits are slidably connected to the columns, and one end of the cylindrical spring is connected to the kit, and the other end is connected to the assembly plate.

[0009] As a further solution of the present invention: the rotary drive mechanism includes a driven shaft rotatably mounted on the assembly plate, the driven shaft is connected to the rotating shaft of the rubber roller through a transmission belt, and two sleeves are symmetrically slidably sleeved on the driven shaft, a sliding matching structure is provided between the sleeve and the driven shaft, and a connecting rod is further provided between the sleeve and the cross arm, and both ends of the connecting rod are respectively hinged to the cross arm and the sleeve.

[0010] As a further solution of the present invention: the sliding matching structure includes a driving column arranged on the sleeve, and the outer wall of the driven shaft is provided with a groove adapted to the driving column, the driving column extends into the groove and is slidably connected with the driven shaft, and the groove includes a first groove body, a second groove body and a third groove body connected to each other; Among them, the first groove body is arranged along the circumference of the driven shaft, the second groove body is arranged in an annular shape, the third groove body is arranged in a spiral shape, and the connecting line between the first groove body and the third groove body close to one end of the second groove body is parallel to the axial direction of the driven shaft.

[0011] As a further solution of the present invention: the liquid level lifting mechanism includes a piston plate sealingly and slidably arranged in the box body, the piston plate is fixed to a side plate sealingly and slidably arranged on the side of the box body, and the side plate is connected to a lifting control structure installed on the frame body toward the box body; Wherein, the lifting control structure is connected to a one-way transmission member, and the one-way transmission member is triggered when the rubber roller moves from the glue replenishing position toward the glue coating position, so that the lifting control structure drives the side plate to drive the piston plate to move upward in the box.

[0012] As a further solution of the present invention: the lifting control structure includes a second screw rod rotatably installed on the side of the frame body and a threaded sleeve sleeved on the second screw rod and threadedly connected to the second screw rod, and the threaded sleeve is fixedly connected to the side plate through a connecting arm.

[0013] As a further solution of the present invention: the one-way transmission member includes a ratchet wheel fixedly mounted on the second screw rod and a ratchet plate arranged on the transverse seat and cooperating with the ratchet wheel, and a hand wheel is also fixedly provided on the second screw rod.

[0014] A process for preparing a composite hard film, using the production device to apply an adhesive to a substrate, comprises the following steps: Step 1: The electric mechanism drives the rubber roller to move downward to contact the substrate; Step 2: The substrate moves forward so that the adhesive on the rubber roller is coated onto the surface of the substrate; Step 3: the electric mechanism drives the rubber roller to lift up, and the transverse driving mechanism drives the rubber roller to move from the gluing position to the gluing position; Step 4: The electric mechanism drives the rubber roller to move down into the box, and the rotary drive mechanism is triggered to drive the rubber roller to rotate, completing the glue filling; Step 5: the electric mechanism drives the rubber roller to lift up, the transverse drive mechanism drives the rubber roller to move from the glue filling position to the glue coating position, and the liquid level lifting mechanism is triggered to increase the adhesive liquid level in the box.

[0015] Compared with the prior art, the present invention has the following beneficial effects: A horizontal platform for the substrate to pass through is arranged on the frame, and a box for containing adhesive is arranged on the side of the horizontal platform. The glue coating position and the glue application position of the rubber roller are formed above the horizontal platform and the box respectively. When working, the rubber roller is driven by the transverse driving mechanism to switch back and forth between the two working positions. Specifically, the height of the rubber roller is adjusted by an electric mechanism, and when the rubber roller is in the glue replenishing position, the rotary drive mechanism can drive the rubber roller to rotate to realize automatic replenishment of the adhesive. Secondly, whenever the rubber roller is reset from the glue replenishing position to the glue coating position, the liquid level lifting mechanism is triggered to ensure that the adhesive in the box can automatically raise the liquid level as it is consumed, ensuring that the subsequent rubber roller can smoothly replenish the adhesive; Therefore, the present application realizes the orderly coordination of gluing and gluing repairing through the mutual cooperation between various mechanisms and components, avoiding the problems of high cost, fragility, difficulty in cleaning, and high requirements for environment and operation when using the anilox roller method. At the same time, it also ensures the uniformity of gluing, avoids the problems of scraper wear, uneven installation or local wear, which lead to streaks or glue on the paper surface and affect the quality of the final product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is an axonometric diagram of an embodiment of a production device for a composite hard film.

[0017] Figure 2 The present invention is a schematic structural diagram of an embodiment of a production device for a composite hard film.

[0018] Figure 3 The present invention is a schematic structural diagram from another angle of an embodiment of a production device for a composite hard film.

[0019] Figure 4 The present invention is a structural schematic diagram of another angle of an embodiment of a production device for a composite hard film.

[0020] Figure 5 for Figure 4 A magnified view of the structure at center.

[0021] Figure 6 This is a schematic diagram of the structure of a frame in one embodiment of a production device for a composite hard film.

[0022] Figure 7 for Figure 6 Schematic diagram of the structure from another angle.

[0023] Figure 8 The present invention is a schematic diagram of the connection relationship between the electric mechanism and the rubber roller in one embodiment of a production device for a composite hard film.

[0024] Fig. 9 for Figure 8 Schematic diagram of the structure from another angle.

[0025] Fig.10 This is an exploded view of the structure of a rotary drive mechanism in one embodiment of a production device for a composite hard film.

[0026] In the figure: 1, frame; 2, cross table; 3, cross beam; 4, rubber roller; 5, box; 501, arc notch; 6, drive motor; 7, first screw rod; 8, transverse seat; 9, electric push rod; 10, cross arm; 11, guide rail; 12, assembly plate; 13, kit; 14, column; 15, cylindrical spring; 16, driven shaft; 1601, first slot; 1602, second slot; 1603, third slot; 17, transmission belt; 18, sleeve; 19, connecting rod; 20, drive column; 21, piston plate; 22, side plate; 23, connecting arm; 24, second screw rod; 25, threaded sleeve; 26, ratchet; 27, ratchet plate; 28, handwheel. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In addition, when an element in the present invention is referred to as being "disposed on" or "disposed on" another element, it may be directly on the other element or there may be a centered element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a centered element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0029] See also Figure 1-Figure 10 In an embodiment of the present invention, a composite hard film production device is used to apply an adhesive to a substrate, including a frame 1 and a horizontal platform 2 provided on the frame 1 for supporting the substrate, and further comprising: A crossbeam 3 is arranged on the frame 1 and arranged along the width direction of the frame 1. A mounting plate 12 is movably arranged on the crossbeam 3. The mounting plate 12 can be driven by a transverse driving mechanism arranged on the crossbeam 3 to move along the width direction of the frame 1. A rubber roller 4 is rotatably mounted on the mounting plate 12. The rubber roller 4 is connected to a rotating driving mechanism arranged on the mounting plate 12. A box 5 is provided on one side of the frame 1 and is used to contain adhesive. A gluing position and a gluing position of the rubber roller 4 are formed above the horizontal platform 2 and the box 5, respectively. The rubber roller 4 can be driven by an electric mechanism provided on the crossbeam 3 to vertically rise and fall when it is at the gluing position and the gluing position. When the rubber roller 4 is at the gluing position and is vertically rising and falling, the rotary drive mechanism is triggered to drive the rubber roller 4 to rotate. The liquid level lifting mechanism is arranged in the box body 5. Whenever the glue roller 4 completes glue filling and moves from the glue filling position toward the glue coating position, the liquid level lifting mechanism is triggered and causes the adhesive liquid level in the box body 5 to rise.

[0030] Furthermore, the substrate is connected to a transmission mechanism. When gluing is being performed, the electric mechanism drives the rubber roller 4 located at the gluing position to descend until the rubber roller 4 contacts the surface of the substrate. Then, the transmission mechanism will drive the substrate to move along the length direction of the horizontal table 2 to achieve gluing. Among them, the transmission mechanism can adopt existing technology and only needs to meet the smooth and uniform movement of the substrate. This application does not make specific limitations on this.

[0031] As the substrate moves, after the rubber roller 4 completes one circle of rotation, the electric mechanism drives the rubber roller 4 to lift up and reset, and the transverse driving mechanism works in the forward direction, driving the assembly plate 12 to drive the rubber roller 4 to move along the width direction of the horizontal platform 2 to the side of the horizontal platform 2, that is, above the box 5 (glue replenishing position), and then the electric mechanism drives the rubber roller 4 to descend. During this process, the rotation driving mechanism is triggered to cause the rubber roller 4 to rotate, so that the adhesive in the box 5 will be replenished to the outer wall of the rubber roller 4. Finally, the electric mechanism drives the rubber roller 4 to lift up again, and the transverse driving mechanism works in the reverse direction, driving the assembly plate 12 to drive the rubber roller 4 to reset to the glue coating position to continue the adhesive coating. During this process, the liquid level lifting mechanism is triggered, which will cause the adhesive in the box 5 to rise, so as to ensure that the adhesive in the box 5 can automatically raise the liquid level as it is consumed, so as to ensure that the rubber roller 4 can smoothly replenish the adhesive later; In summary, through the mutual cooperation between various mechanisms and components, during operation, the rubber roller 4 can switch back and forth between the glue coating position and the glue replenishing position, and the height of the rubber roller 4 can be adjusted by the electric mechanism, and when the rubber roller 4 is in the glue replenishing position, the rotary drive mechanism can drive the rubber roller 4 to rotate, so as to realize automatic replenishment of the adhesive. Secondly, whenever the rubber roller 4 is reset from the glue replenishing position to the glue coating position, the liquid level lifting mechanism is triggered, which can ensure that the adhesive in the box 5 can automatically raise the liquid level as it is consumed, thereby ensuring that the rubber roller 4 can smoothly replenish the adhesive subsequently.

[0032] Please refer again Figure 6 and Fig. 9 The transverse driving mechanism includes a guide rail 11 arranged on the crossbeam 3 and a transverse seat 8 slidably engaged in the guide rail 11, and the transverse seat 8 is connected to a threaded driving member installed on the crossbeam 3, and the threaded driving member can drive the transverse seat 8 to slide along the guide rail 11, so that the glue roller 4 can switch between the glue coating position and the glue filling position.

[0033] In detail, the threaded drive member includes a first screw rod 7 rotatably mounted on the cross beam 3 and a drive motor 6 mounted on the cross beam 3 and having an output end connected to the first screw rod 7, wherein the first screw rod 7 is arranged along the length direction of the guide rail 11, and the first screw rod 7 passes through the transverse seat 8, and the transverse seat 8 is threadedly connected to the first screw rod 7; It should be noted that the driving motor 6 selects a servo motor with a bidirectional drive at the output end, so as to drive the first screw rod 7 to rotate forward or reverse. Under the guidance of the guide rail 11, the transverse seat 8 can be threadedly matched with the first screw rod 7 and slide along the guide rail 11, thereby realizing the position switching function of the rubber roller 4 between the gluing position and the gluing position, and the first screw rod 7 has the characteristics of high driving accuracy and good stability, so it can effectively guarantee the processing accuracy and improve product quality.

[0034] Please refer again Figure 8 , Fig. 9 as well as Fig.10 The electric mechanism includes two electric push rods 9 mounted on the transverse seat 8, and the movable ends of the two electric push rods 9 are fixedly connected to a cross arm 10, and the cross arm 10 is connected to the assembly plate 12 through an elastic structure, and the assembly plate 12 is also connected to the rotation drive mechanism; an arc-shaped notch 501 is provided on each side of the box body 5, and the arc-shaped notch 501 is adapted to the assembly plate 12. The elastic structure includes two columns 14 fixedly mounted on the assembly plate 12 and two cylindrical springs 15 respectively sleeved on the outer circumference of the two columns 14, and the two columns 14 respectively penetrate the two sets 13 set on the cross arm 10, and the sets 13 are slidably connected to the columns 14, and one end of the cylindrical spring 15 is connected to the set 13, and the other end is connected to the assembly plate 12. The rotary drive mechanism includes a driven shaft 16 rotatably mounted on the assembly plate 12, the driven shaft 16 is connected to the rotating shaft of the rubber roller 4 through a transmission belt 17, and two sleeves 18 are symmetrically and slidably sleeved on the driven shaft 16, a sliding matching structure is provided between the sleeve 18 and the driven shaft 16, and a connecting rod 19 is further provided between the sleeve 18 and the cross arm 10, and the two ends of the connecting rod 19 are respectively hinged to the cross arm 10 and the sleeve 18.

[0035] It should be pointed out that when the rubber roller 4 is located at the glue coating position and the glue replenishing position, the electric push rod 9 will drive the cross arm 10 to move downward, and accordingly, the rubber roller 4 will be released from the substrate on the horizontal platform 2, and the assembly plate 12 will abut against the box body 5 through the arc-shaped recess 501. As the electric push rod 9 continues to drive, the rubber roller 4 remains stationary, the cylindrical spring 15 is compressed, and under the pushing action of the connecting rod 19, the two sleeves 18 slide away from each other on the driven shaft 16. The difference is that when the rubber roller 4 is located at the glue coating position, the sliding stroke of the sleeve 18 is smaller than the sliding stroke when the rubber roller 4 is located at the glue replenishing position.

[0036] The sliding matching structure includes a driving column 20 disposed on the sleeve 18, and a groove adapted to the driving column 20 is provided on the outer wall of the driven shaft 16, the driving column 20 extends into the groove and is slidably connected with the driven shaft 16, and the groove includes a first groove body 1601, a second groove body 1602 and a third groove body 1603 connected to each other; Among them, the first groove body 1601 is arranged along the circumference of the driven shaft 16, the second groove body 1602 is arranged in an annular shape, the third groove body 1603 is arranged in a spiral shape, and the connecting line between the first groove body 1601 and the third groove body 1603 close to one end of the second groove body 1602 is parallel to the axial direction of the driven shaft 16.

[0037] It should be noted that when the rubber roller 4 is in the lifted state, the driving column 20 is located at the end of the first slot 1601 away from the second slot 1602. At this time, the rubber roller 4 cannot rotate, which plays a locking role. When the rubber roller 4 is in the gluing position, the electric push rod 9 drives the cross arm 10 to move downward. After the rubber roller 4 contacts the substrate, as the electric push rod 9 continues to push, the cylindrical spring 15 will be compressed to ensure that the rubber roller 4 has a certain pressure on the substrate, so as to ensure the effective gluing. Specifically, during the compression of the cylindrical spring 15, the sleeve 18 drives the driving column 20 to move from the first groove 1601 to the second groove 1602. Since the second groove 1602 is arranged in an annular shape, during the gluing process, as the substrate is pulled, the rubber roller 4 can rotate to ensure that the adhesive on the outer wall of the rubber roller 4 can be coated on the surface of the substrate. After the coating is completed, the electric push rod 9 drives the cross arm 10 to lift and reset, and the cylindrical spring 15 rebounds, so that the driving column 20 is reset to the end of the first groove 1601 away from the second groove 1602. When the rubber roller 4 is located at the glue filling position, the electric push rod 9 will drive the assembly plate 12 to fit and dock with the arc-shaped recess 501. At this time, part of the rubber roller 4 will be immersed in the adhesive. As the electric push rod 9 continues to drive, the column spring 15 enters the compression process. Since the connecting line between the first groove body 1601 and the third groove body 1603 close to one end of the second groove body 1602 is parallel to the axial direction of the driven shaft 16, the sleeve 18 will drive the driven shaft 16 to move in this process. The driving column 20 goes along the first groove body 1601 and passes through the second groove body 1602 into the third groove body 1603. The driving column 20 will slide with the driven shaft 16 through the third groove body 1603 to cause the driven shaft 16 to rotate. Correspondingly, the driven shaft 16 drives the rubber roller 4 to rotate one circle through the transmission belt 17, and the outer wall of the rubber roller 4 completes automatic glue filling. After the glue filling is completed, the electric push rod 9 drives the cross arm 10 to lift up, and each component is reset.

[0038] Please refer again Figure 3 , Figure 6 as well as Figure 7 The liquid level lifting mechanism includes a piston plate 21 which is sealed and slidably arranged in the box body 5, and the piston plate 21 is fixed to a side plate 22 which is sealed and slidably arranged on the side of the box body 5, and the side plate 22 is connected to a lifting control structure installed on the side of the frame body 1 facing the box body 5; the lifting control structure is connected to a one-way transmission member, and the one-way transmission member is triggered when the rubber roller 4 moves from the glue filling position to the glue coating position, so that the lifting control structure drives the side plate 22 to drive the piston plate 21 to move upward in the box body 5. The lifting control structure includes a second screw rod 24 which is rotatably installed on the side of the frame body 1, and a threaded sleeve 25 which is sleeved on the second screw rod 24 and threadedly connected to the second screw rod 24, and the threaded sleeve 25 is fixedly connected to the side plate 22 through a connecting arm 23. The one-way transmission member includes a ratchet 26 fixedly mounted on the second screw rod 24 and a ratchet plate 27 disposed on the transverse displacement seat 8 and cooperating with the ratchet 26 , and a hand wheel 28 is also fixedly disposed on the second screw rod 24 .

[0039] Whenever the rubber roller 4 completes the glue filling at the glue filling position, the driving motor 6 drives the first screw 7 to rotate in the opposite direction. During the process in which the transverse seat 8 drives the rubber roller 4 to move from the glue filling position to the glue coating position, the ratchet on the ratchet plate 27 will contact the ratchet wheel 26 and drive the ratchet wheel 26 and the second screw 24 to rotate. Correspondingly, the threaded sleeve 25 is threadedly matched with the second screw 24. The threaded sleeve 25 drives the piston plate 21 to rise a certain distance in the box body 5 through the connecting arm 23 and the side plate 22, so that after each glue filling is completed, the liquid level of the adhesive in the box body 5 automatically rises to ensure that when the glue is filled next time, the rubber roller 4 can be smoothly immersed in the adhesive after moving down, thereby ensuring the effective glue filling. On the contrary, when the rubber roller 4 moves from the glue coating position toward the glue filling position, the ratchet on the ratchet plate 27 will deflect after contacting the ratchet wheel 26, and cannot drive the ratchet wheel 26 to rotate, so as to realize the one-way transmission function of the second screw rod 24. The height of the piston plate 21 is adjusted by utilizing the threaded cooperation between the second screw rod 24 and the threaded sleeve 25, which has the advantage of high precision, can ensure the quantitative nature of glue filling, and improve the processing effect.

[0040] In which, during the subsequent processing, when the adhesive in the box body 5 is consumed, the staff can rotate the second screw 24 through the hand wheel 28 to move the piston plate 21 downward and reset in the box body 5, and then replenish the adhesive in the box body 5.

[0041] As another embodiment of the present invention, a process for preparing a composite hard film is also proposed, wherein the adhesive is applied to a substrate using the production device, and the process comprises the following steps: Step 1: The electric mechanism drives the rubber roller 4 to move downward to contact the substrate; Step 2: The substrate moves forward so that the adhesive on the rubber roller 4 is coated onto the surface of the substrate; Step 3: the electric mechanism drives the rubber roller 4 to lift up, and the transverse driving mechanism drives the rubber roller 4 to move from the glue coating position to the glue filling position; Step 4: the electric mechanism drives the rubber roller 4 to move down into the box 5, and the rotary drive mechanism is triggered to drive the rubber roller 4 to rotate, thereby completing the glue filling; Step 5: the electric mechanism drives the rubber roller 4 to lift up, the transverse driving mechanism drives the rubber roller 4 to move from the glue filling position to the glue coating position, and the liquid level lifting mechanism is triggered to increase the adhesive liquid level in the box 5.

[0042] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0043] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A composite hard film production device, used for coating an adhesive onto a substrate, comprising a frame (1) and a horizontal platform (2) arranged on the frame (1) for supporting the substrate; It is characterized in that Also includes: A crossbeam (3) is arranged on the frame (1) and is arranged along the width direction of the frame (1); a mounting plate (12) is movably arranged on the crossbeam (3); the mounting plate (12) can be driven by a transverse driving mechanism arranged on the crossbeam (3) to move along the width direction of the frame (1); a rubber roller (4) is rotatably mounted on the mounting plate (12); the rubber roller (4) is connected to a rotating driving mechanism arranged on the mounting plate (12); A box (5) is arranged on one side of the frame (1) and is used to contain adhesive. A gluing position and a gluing position of the rubber roller (4) are formed above the horizontal platform (2) and the box (5), respectively. The rubber roller (4) can be driven by an electric mechanism arranged on the crossbeam (3) to vertically rise and fall when it is at the gluing position and the gluing position. When the rubber roller (4) is at the gluing position and is vertically rising and falling, the rotary drive mechanism is triggered to drive the rubber roller (4) to rotate. The liquid level raising mechanism is arranged in the box body (5), and whenever the glue roller (4) completes glue filling and moves from the glue filling position toward the glue coating position, the liquid level raising mechanism is triggered and causes the adhesive liquid level in the box body (5) to rise.

2. The production device of a composite hard film according to claim 1, characterized in that: The transverse driving mechanism comprises a guide rail (11) arranged on the crossbeam (3) and a transverse seat (8) slidably engaged in the guide rail (11), and the transverse seat (8) is connected to a threaded driving member installed on the crossbeam (3), and the threaded driving member can drive the transverse seat (8) to slide along the guide rail (11), so that the rubber roller (4) can be switched between the glue coating position and the glue filling position.

3. The production device of a composite hard film according to claim 2, characterized in that: The electric mechanism comprises two electric push rods (9) mounted on the transverse displacement seat (8), the movable ends of the two electric push rods (9) being fixedly connected to a cross arm (10), the cross arm (10) being connected to the assembly plate (12) via an elastic structure, and the assembly plate (12) being further connected to the rotation drive mechanism; Wherein, an arc-shaped recess (501) is respectively provided on two sides of the box body (5), and the arc-shaped recess (501) is adapted to fit the assembly plate (12).

4. The production device of a composite hard film according to claim 3, characterized in that: The elastic structure comprises two columns (14) fixedly mounted on the assembly plate (12) and two columnar springs (15) respectively sleeved on the outer circumferences of the two columns (14); the two columns (14) respectively penetrate two sets (13) arranged on the cross arm (10); the sets (13) are slidably connected to the columns (14); one end of the columnar spring (15) is connected to the sets (13) and the other end is connected to the assembly plate (12).

5. The production device of a composite hard film according to claim 4, characterized in that: The rotary drive mechanism comprises a driven shaft (16) rotatably mounted on the assembly plate (12), the driven shaft (16) being connected to the rotating shaft of the rubber roller (4) via a transmission belt (17), and two sleeves (18) being symmetrically slidably sleeved on the driven shaft (16), a sliding matching structure being provided between the sleeves (18) and the driven shaft (16), and a connecting rod (19) being provided between the sleeves (18) and the cross arm (10), the two ends of the connecting rod (19) being respectively hinged to the cross arm (10) and the sleeves (18).

6. The production device of a composite hard film according to claim 5, characterized in that: The sliding matching structure comprises a driving column (20) arranged on the sleeve (18), and a groove adapted to the driving column (20) is provided on the outer wall of the driven shaft (16), the driving column (20) extends into the groove and is slidably connected to the driven shaft (16), and the groove comprises a first groove body (1601), a second groove body (1602) and a third groove body (1603) which are connected to each other; The first groove body (1601) is arranged along the circumference of the driven shaft (16), the second groove body (1602) is arranged in an annular shape, the third groove body (1603) is arranged in a spiral shape, and a line connecting the first groove body (1601) and the third groove body (1603) close to one end of the second groove body (1602) is parallel to the axial direction of the driven shaft (16).

7. The production device of a composite hard film according to claim 2, characterized in that: The liquid level lifting mechanism comprises a piston plate (21) sealingly and slidably arranged in the box body (5), the piston plate (21) is fixed to a side plate (22) sealingly and slidably arranged on the side of the box body (5), and the side plate (22) is connected to a lifting control structure installed on the side of the frame (1) facing the box body (5); The lifting control structure is connected to a one-way transmission member, and the one-way transmission member is triggered when the rubber roller (4) moves from the glue replenishing position toward the glue coating position, so that the lifting control structure drives the side plate (22) to drive the piston plate (21) to move upward in the box body (5).

8. The production device of a composite hard film according to claim 7, characterized in that: The lifting control structure comprises a second screw rod (24) rotatably mounted on the side of the frame (1) and a threaded sleeve (25) sleeved on the second screw rod (24) and threadedly connected to the second screw rod (24), and the threaded sleeve (25) is fixedly connected to the side plate (22) via a connecting arm (23).

9. The production device of a composite hard film according to claim 8, characterized in that: The one-way transmission member comprises a ratchet (26) fixedly mounted on the second screw rod (24) and a ratchet plate (27) disposed on the transverse displacement seat (8) and cooperating with the ratchet (26), and a hand wheel (28) is also fixedly provided on the second screw rod (24).

10. A process for preparing a composite hard film, comprising applying an adhesive to a substrate using the production device as claimed in claim 1, wherein: The following steps are involved: Step 1: The electric mechanism drives the rubber roller (4) to move downward to contact the substrate; Step 2: the substrate moves forward so that the adhesive on the rubber roller (4) is coated onto the surface of the substrate; Step 3: the electric mechanism drives the rubber roller (4) to lift up, and the transverse driving mechanism drives the rubber roller (4) to move from the glue coating position to the glue replenishing position; Step 4: the electric mechanism drives the rubber roller (4) to move downward into the box (5), and the rotary drive mechanism is triggered to drive the rubber roller (4) to rotate, thereby completing the glue filling; Step 5: the electric mechanism drives the rubber roller (4) to lift up, the transverse drive mechanism drives the rubber roller (4) to move from the glue filling position to the glue coating position, and the liquid level lifting mechanism is triggered to increase the adhesive liquid level in the box (5).

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