A double-layer synchronous continuous film laminating device for thin sheet production

Abstract

The present invention provides a double-layer synchronous continuous film laminating device for thin plate production, belonging to the technical field of double-layer film laminating devices. It includes a feeding mechanism, a rotary feeding robot, and a film laminating mechanism; the feeding mechanism includes two horizontal conveyor belts arranged parallel up and down, and each horizontal conveyor belt conveys thin plates along the horizontal direction to achieve double-layer side-by-side feeding; the rotary feeding robot is arranged behind the feeding mechanism and is used to receive two thin plates synchronously conveyed from the feeding mechanism and transfer the two thin plates into the film laminating mechanism; the film laminating mechanism is arranged on one side of the rotary feeding robot and is used to synchronously laminate the two thin plates; the film laminating device in the present invention realizes high-efficiency production through the cooperation of the feeding mechanism, the rotary feeding robot, and the film laminating mechanism, and solves the technical problems of low efficiency and production rhythm disconnection of traditional single-station film laminating devices.

Description

Technical Field

[0001] The present invention belongs to the technical field of double-layer film laminating devices, and more specifically, relates to a double-layer synchronous continuous film laminating device for thin plate production. Background Art

[0002] In the large-scale production of thin plates such as acrylic plates, ABS plastic plates, galvanized steel plates, etc., surface film laminating is a key process for protecting against transportation scratches and delaying oxidation. Nowadays, with the expansion of market demands in daily use, industry, intelligent products, etc., the demand for various types of plates is increasing day by day. According to the data of the China Plastics Processing Industry Association in 2024, the domestic plate film laminating market scale has reached 12.7 billion yuan, and the demand for multi-specification and high-efficiency film laminating in the fields of home appliances, automobiles, and intelligent terminals accounts for more than 65%.

[0003] However, currently, most plate film laminating adopts a single-plate single-surface film laminating production mode, which is inefficient and cannot well meet the demands. Therefore, for this project, an automatic film laminating machine that can achieve double-layer film laminating of multiple thin plates simultaneously is designed. Through the coordinated operation of each component, high-efficiency production of products is realized, meeting the current production requirements of intelligence and high efficiency, and providing design reference and reference for related industries. Summary of the Invention

[0004] The purpose of the present invention is to provide a double-layer synchronous continuous film laminating device for thin plate production, so as to solve the problem of low efficiency in the single-plate single-surface film laminating production mode in the prior art.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: providing a double-layer synchronous continuous film laminating device for thin plate production, which includes a feeding mechanism, a rotating feeding robot, and a film laminating mechanism; the feeding mechanism includes two horizontal conveyor belts arranged parallel to each other up and down, and each horizontal conveyor belt conveys thin plates along the horizontal direction to achieve double-layer side-by-side feeding; the rotating feeding robot is arranged behind the feeding mechanism and is used to receive two thin plates synchronously conveyed from the feeding mechanism and transfer the two thin plates into the film laminating mechanism; the film laminating mechanism is arranged on one side of the rotating feeding robot and is used to synchronously laminate the two thin plates;

[0006] The rotating feeding robot includes a first frame, a rotating table, a clamping component, and a displacement component; the first frame is arranged behind the feeding mechanism; the rotating table is arranged above the first frame, and the rotating table rotates around the vertical direction driven by a driving member; two clamping components are arranged above the rotating table and rotate synchronously with the rotating table. The two clamping components are respectively aligned with the discharge ends of the two horizontal conveyor belts. The clamping components are used to clamp the two thin plates synchronously conveyed from the feeding mechanism and then convey them to the corresponding positions in the film laminating mechanism; the displacement component is located on the rotating table and is connected to the two clamping components, and is used to drive the two clamping components to move in three-dimensional space;

[0007] Each clamping component includes a connecting block, a linear actuator, and a clamping plate. The two connecting blocks are of a hollow structure and are respectively located at both ends of the thin plate. The displacement component is connected to the corresponding sides of the two connecting blocks and is used to drive the two connecting blocks to move in three-dimensional space. At least one linear actuator is arranged in each connecting block; the linear actuator is connected to a pair of clamping plates arranged parallel up and down, and the two clamping plates are driven by the linear actuator to open and close;

[0008] The film laminating mechanism includes a second frame, an upper transmission shaft, a lower transmission shaft, a pressing shaft, a guiding shaft, a traction roller, and a servo motor. Taking the film conveying direction as a reference, one end of the second frame away from the rotary feeding robot is the first end, and the end close to the rotary feeding robot is the second end; the upper transmission shaft and the lower transmission shaft are respectively rotatably connected to the upper and lower parts of the first end of the second frame and are used to traction the upper single-layer film and the lower single-layer film; two middle transmission shafts are symmetrically rotatably connected up and down to the middle of the first end of the second frame, and a first gap is formed between them for clamping and transmitting the middle double-layer film; two pressing shafts are symmetrically rotatably connected up and down to the second end of the second frame, and a pressing gap is formed between them. The pressing gap is vertically aligned with the first gap. Each end of each pressing shaft is connected to an extrusion cylinder, and a total of four extrusion cylinders are provided for the two pressing shafts to drive the pressing gap to open and close; the guiding shaft is rotatably connected to the top of the second frame and is located between the upper transmission shaft and the pressing shaft; the traction roller is arranged behind the second frame and rotates under the drive of the servo motor and is used to traction the film and the thin plate to move synchronously; during film laminating, the upper single-layer film passes through the upper transmission shaft and the guiding shaft and then enters the upper part of the pressing gap. The middle double-layer film horizontally passes through the first gap and then enters the middle of the pressing gap. The lower single-layer film passes through the lower transmission shaft and then enters the lower part of the pressing gap; the rotary feeding robot sends the two thin plates respectively to the middle of the four-layer film. When the front ends of the two thin plates are directly below the pressing gap, the two clamping components loosen and retreat, and the extrusion cylinders drive the two pressing shafts to approach each other, pressing the four-layer film onto the surface of the thin plate synchronously. At the same time, the traction roller drives the film and the thin plate to move synchronously.

[0009] In combination with the above technical solution, in a possible implementation manner, the feeding mechanism further includes a third frame, a driving roller, a driven roller, and a baffle. The height-adjustable third frame has a first end and a second end. The first end is far from the rotary feeding robot, and the second end is close to the rotary feeding robot; two driving rollers arranged parallel up and down are arranged at the first end of the third frame, and the two driving rollers rotate synchronously under the drive of a driving member; two driven rollers correspond to the two driving rollers one by one and are rotatably connected to the second end of the third frame. A horizontal conveyor belt is wound around between each driving roller and the corresponding driven roller. A plurality of detachable baffles are vertically arranged on the outer circumferential surface of the horizontal conveyor belt, and the length direction of the baffle is parallel to the width direction of the horizontal conveyor belt.

[0010] When the horizontal conveyor belt is running, the baffle moves along with the horizontal conveyor belt and pushes the thin plate to be conveyed towards the second end of the third rack until the thin plate reaches the second end of the third rack; at this time, the baffle on the side close to the rotary feeding robot turns downward around the driven roller along with the horizontal conveyor belt and separates from the thin plate, while the baffle on the side far from the rotary feeding robot continues to push the thin plate towards the second end of the third rack, causing the thin plate to partially protrude from the edge of the horizontal conveyor belt and break away from the restraint of the baffle under the action of gravity, and accurately fall into the clamping assembly.

[0011] Combined with the above technical solution, in a possible implementation manner, the linear actuator is a finger cylinder, and three finger cylinders are evenly distributed along the length direction of each connecting block. Each finger cylinder has two upper and lower output ends, and the two output ends are respectively connected to the two clamping plates.

[0012] Combined with the above technical solution, in a possible implementation manner, four height-adjustable furniture casters are respectively arranged at the four corner positions under the first rack, and a plurality of universal rollers are arranged along the circumferential direction of the rotary table at the top end of the first rack. The outer surface of each universal roller is in rolling contact with the lower surface of the rotary table.

[0013] Combined with the above technical solution, in a possible implementation manner, the film laminating mechanism further includes guide rails and supporting feet. The two guide rails are arranged in parallel along the length direction of the second rack below it; the four supporting feet are fixed at the four corner positions at the lower end of the second rack, and each supporting foot is slidably connected to the groove inside the corresponding guide rail so that the second rack can move along the direction of the guide rail.

[0014] The beneficial effects of the film laminating device provided by the present invention are as follows: compared with the prior art, first, the feeding mechanism in the present invention realizes the purpose of synchronously conveying two thin plates in the vertical direction by arranging two horizontally running conveyor belts synchronously in the vertical direction; moreover, a plurality of baffles are detachably arranged along the length direction of each horizontal conveyor belt, and the distance between any two adjacent baffles is equal to the width of the thin plate to be film laminated, so that the horizontal conveyor belt can be compatible with thin plates of different sizes, and can also realize the accurate positioning and transmission of the thin plate. In addition, the baffle at one end of the third rack close to the rotary feeding robot can play a pushing role, and through the boosting effect of the baffle, the thin plate can slide a certain distance towards the direction close to the rotary feeding robot to accurately fall into the material clamping assembly. Compared with the traditional feeding mechanism, it conveys double the number of thin plates at the same time, improves the feeding efficiency, and increases the practicability and functionality of the feeding mechanism.

[0015] Second, by setting up a rotary feeding robot, the above structure can achieve the purposes of synchronously grasping double-layer thin plates, three-dimensional position adjustment and rotary station switching through the cooperation of two clamping plate assemblies, a displacement assembly and a rotary table, thereby achieving the technical effect of accurately docking the horizontal conveyor belt and the film laminating mechanism and avoiding motion interference, and solving the technical problems of low manual handling efficiency and insufficient positioning accuracy.

[0016] Third, the rotary feeding robot sends the two thin plates to the middle of the four-layer film respectively. When the front ends of the two thin plates are directly below the extrusion gap, the two clamping components loosen and retreat, and the extrusion cylinder drives the two extrusion shafts to approach each other, synchronously pressing the four-layer film onto the surface of the thin plate. At the same time, the traction roller drives the film and the thin plate to move synchronously. Through parallel film laminating of multiple thin plates, the film laminating device realizes the purpose of doubling the production capacity and continuous production. By setting up a feeding mechanism, a rotary feeding robot and a film laminating mechanism, these three parts work together and produce efficiently, solving the technical problems of low efficiency and disjointed production rhythm of traditional single-station film laminating devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 Schematic diagram of the double-layer synchronous continuous film laminating device provided by the embodiment of the present invention;

[0019] Figure 2 Schematic diagram of the structure of the feeding mechanism provided by the embodiment of the present invention;

[0020] Figure 3 Schematic diagram of the structure of the rotary feeding robot provided by the embodiment of the present invention;

[0021] Figure 4 Schematic diagram of the positional structure of the clamping component and the displacement component provided by the embodiment of the present invention;

[0022] Figure 5 Provided by the embodiment of the present invention Figure 4 Schematic diagram of the structure of

[0023] Figure 6 Schematic diagram of the structure of the film laminating mechanism provided by the embodiment of the present invention (the middle double-layer film is not shown in the figure);

[0024] Among them, the reference numerals in the figures are as follows:

[0025] 10. Loading mechanism; 11. Horizontal conveyor belt; 12. Third frame; 13. Driving roller; 14. Driven roller; 15. Baffle

[0026] 20. Rotating feeding robot; 21. First frame; 22. Rotating table; 23. Clamping component; 231. Connecting block; 232. Finger cylinder; 233. Clamping plate; 24. Displacement component; 25. Furniture casters; 26. Universal rollers

[0027] 30. Film laminating mechanism; 31. Second frame; 32. Upper transmission shaft; 33. Lower transmission shaft; 34. Middle transmission shaft; 35. Extrusion shaft; 36. Extrusion cylinder; 37. Guide shaft Detailed implementation manners

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0029] It should be further noted that the drawings and embodiments of the present invention mainly describe and illustrate the concept of the present invention. On the basis of this concept, the specific forms and settings of some connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems may not be fully described. However, on the premise that those skilled in the art understand the concept of the present invention, those skilled in the art can implement the above specific forms and settings in a well-known manner.

[0030] When an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0031] The orientation words "inside" and "outside" refer to the inside and outside of the contour of each component itself. The terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention.

[0032] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more, and "several" means one or more, unless otherwise specifically defined.

[0033] Now, a double-layer synchronous continuous film laminating device for thin plate production provided by the present invention will be described.

[0034] As Figure 1 and Figure 6 shown, a double-layer synchronous continuous film laminating device for thin plate production provided by the first embodiment of the present invention includes a loading mechanism 10, a rotary feeding robot 20, and a film laminating mechanism 30; the loading mechanism 10 includes two horizontal conveyor belts 11 arranged parallel to each other up and down, and each horizontal conveyor belt 11 conveys thin plates in the horizontal direction to achieve double-layer side-by-side feeding; the rotary feeding robot 20 is arranged behind the loading mechanism 10 and is used to receive two thin plates synchronously conveyed from the loading mechanism 10 and transfer the two thin plates into the film laminating mechanism 30; the film laminating mechanism 30 is arranged on one side of the rotary feeding robot 20 and is used to synchronously laminate the two thin plates.

[0035] Based on the conveying direction of the thin plates, the rotary feeding robot 20 is arranged behind the loading mechanism 10, and the film laminating mechanism 30 is arranged perpendicular to the conveying direction of the thin plates. The loading mechanism 10 includes two horizontal conveyor belts 11 arranged parallel to each other up and down, and the moving speeds of the horizontal conveyor belts 11 are the same, so as to ensure that the two conveyor belts can simultaneously and synchronously convey two thin plates in the vertical direction. The rotary feeding robot 20 is arranged at three positions. The first position is the initial position, the second position is the receiving position, and the third position is the feeding position. During operation, the rotary feeding robot 20 rotates from the initial position to the receiving position. The receiving position is directly opposite the discharging end of the loading mechanism 10 to receive two thin plates synchronously conveyed from the loading mechanism 10. Then, the rotary feeding robot 20 rotates from the receiving position to the feeding position. The feeding position faces the film laminating mechanism 30, and the rotary feeding robot 20 transfers the two thin plates into the film laminating mechanism for synchronously laminating the two thin plates.

[0036] As Figures 3 to 5As shown in the figure, the rotary feeding robot 20 includes a first frame 21, a rotary table 22, a material clamping assembly 23, and a displacement assembly 24; the first frame 21 is arranged behind the feeding mechanism 10; the rotary table 22 is arranged above the first frame 21, and the rotary table 22 rotates around the vertical direction driven by a driving member; two material clamping assemblies 23 are arranged above the rotary table 22 and rotate synchronously with the rotary table 22. The two material clamping assemblies 23 are respectively aligned with the discharge ends of the two horizontal conveyor belts 11. The material clamping assembly 23 is used to clamp the two thin plates conveyed synchronously from the feeding mechanism 10 and then convey them into the film laminating mechanism 30; the displacement assembly 24 is located on the rotary table 22 and is connected to the two material clamping assemblies 23 for driving the two material clamping assemblies 23 to move in three-dimensional space; four height-adjustable Furniture casters 25 are respectively arranged at the four corner positions below the first frame 21, and a plurality of universal rollers 26 are arranged along the circumferential direction of the rotary table 22 at the top end of the first frame 21. The outer surface of each universal roller 26 is in rolling contact with the lower surface of the rotary table 22.

[0037] As the core support platform of the rotary feeding robot 20, the first frame 21 adopts a high-strength welded steel frame structure and is fixed on the ground behind the feeding mechanism 10. A support shaft is vertically arranged in the center of the first frame 21. A rotating cylinder is arranged at the center position of the lower surface of the rotary table 22. The rotating cylinder is sleeved on the support shaft. A first synchronous pulley is fixedly arranged on the outside of the rotating cylinder. A first motor is arranged on the first frame 21. A second synchronous pulley is arranged at the output end of the first motor. A synchronous belt is wound between the first synchronous pulley and the second synchronous pulley. When the first motor is started, the second synchronous pulley drives the first synchronous pulley to rotate through the synchronous belt. At the same time, the first synchronous pulley drives the rotary table 22 connected thereto to rotate through the rotating cylinder. The first motor is a forward and reverse motor. Thus, the rotary table 22 can realize 360° bidirectional rotation, and finally ensure that the rotary feeding robot 20 can reciprocally switch between the material receiving position, the initial position, and the feeding position; at the same time, in order to ensure the overall running stability of the rotary table 22 surface, a plurality of universal rollers 26 are arranged on the lower surface of the rotary table 22, so that no matter the rotary table 22 rotates forward or backward, the trajectories of the universal rollers 26 change accordingly to always adapt to the working needs;

[0038] To further facilitate the handling and position adjustment of the rotary feeding robot 20 to meet different working conditions requirements, four height-adjustable Furniture casters 25 are respectively installed at the four corner positions below the first frame 21. The height of the Furniture casters 25 can be independently adjusted to compensate for the ground unevenness error and ensure the levelness of the rotary table 22. Moreover, a single person can complete the equipment movement and leveling, and the deployment time is shortened from 2 hours of traditional hoisting to 10 minutes.

[0039] Two clamping components 23 are arranged above the rotating table 22 and rotate synchronously with the rotating table 22. When the rotating table 22 is in the position of receiving materials, the two clamping components 23 are respectively aligned with the discharging ends of the two horizontal conveyor belts 11. When the rotating table 22 is in the position of feeding materials, the two clamping components 23 correspond to the positions of the films in the film covering mechanism 30. The displacement component 24 is located on the rotating table 22 and is connected to the two clamping components 23, and is used to drive the two clamping components 23 to move in three-dimensional space. When the rotating table 22 is in the position of receiving materials, the displacement component 24 drives the two clamping components to make adjustments in the up-down, left-right, front-back directions, so as to ensure that the clamping components can receive the thin plates and clamp them. When the rotating table 22 is in the position of feeding materials, the displacement component 24 also drives the two clamping components to make adjustments in the up-down, left-right, front-back directions, so that the two thin plates can accurately enter the film covering mechanism 30.

[0040] Specifically, the displacement component 24 includes a first linear driving unit, a second linear driving unit and a third linear driving unit. The first linear driving unit is installed along the radial direction of the rotating table 22 (defined as the X-axis) and is used to drive the clamping component 23 to move back and forth. The second linear driving unit is fixed on the output end of the first linear driving unit and is installed along the tangential direction of the rotating table 22 (defined as the Y-axis) and is used to drive the clamping component 23 to move left and right. The third linear driving unit is fixed on the output end of the second linear driving unit and is installed along the vertical direction (defined as the Z-axis) and is used to drive the clamping component 23 to lift and lower. Taking the rotating table 22 in the position of receiving materials as an example, the X-axis is the direction in which the clamping component 23 approaches or moves away from the feeding mechanism 10, the Y-axis is parallel to the length direction of the thin plate, and the Z-axis is perpendicular to the plane of the rotating table 22. The linear driving unit can be in the form of a linear module, a lead screw guide rail, etc., which is the prior art and will not be elaborated in detail here.

[0041] As Figures 4 to 5 shown, each clamping component 23 includes a connecting block 231, a linear actuator and a clamping plate 233. The two connecting blocks 231 are of a hollow structure. The two connecting blocks 231 are respectively located at both ends of the thin plate. The displacement component 24 is connected to the corresponding sides of the two connecting blocks 231 and is used to drive the two connecting blocks 231 to move in three-dimensional space. At least one linear actuator is arranged in each connecting block 231; the linear actuator is connected to a pair of clamping plates 233 arranged in parallel up and down, and the two clamping plates 233 are driven to open and close by the linear actuator.

[0042] In order to receive two thin plates synchronized from the feeding mechanism 10, two corresponding clamping components 23 are provided on the rotary feeding robot 20. The heights of the two clamping components 23 can be adjusted by the displacement component 24 so that the positions of the clamping components 23 correspond to those of the thin plates. The structures of the two clamping components 23 are the same. Specifically, each clamping component 23 includes a connecting block 231, a linear actuator, and a clamping plate 233. The connecting block 231 is used to connect with the displacement component 24. The connecting block 231 has a hollow structure and there are two of them. An opening is provided at one end of the connecting block 231 facing away from the displacement component 24. At least one linear actuator is provided in each connecting block 231. The linear actuator is connected to a pair of clamping plates 233 arranged parallel up and down, and the two clamping plates 233 are driven by the linear actuator to open and close to clamp and release the thin plate.

[0043] The linear actuator refers to a device that those skilled in the art can usually think of, such as a finger cylinder 232, an ordinary cylinder, a hydraulic cylinder, a lead screw module, an electric push rod, and a link drive device, etc. These devices can, alone or with simple modification, realize the function of synchronously driving the two clamping plates 233 to open and close.

[0044] Furthermore, regarding the linear actuator and the two clamping plates 233 driven by it to open and close as an opening and closing unit, two opening and closing units are included in one clamping component. The opening and closing units are located at both ends of the thin plate in the length direction. Thus, the thin plate is stably clamped. When clamping, the clamping surfaces of the two clamping plates 233 are respectively in contact with the upper and lower surfaces of the thin plate, and the clamping area of the clamping plates 233 covers at least 40% of the length direction of the thin plate. Polyurethane rubber layers can also be pasted on the clamping surfaces of the two clamping plates 233. On the one hand, it can increase the friction between the clamping plates 233 and the thin plate, making the thin plate not easy to slide out. On the other hand, it can reduce the risk of the clamping plates 233 scratching the thin plate. Anti-slip patterns are processed on the surface of the rubber layer, with a pattern depth of 0.5 mm and a pitch of 2 mm, further improving the anti-lateral sliding ability.

[0045] Such as Figures 2 to 3As shown in the figure, the film laminating mechanism 30 includes: a second frame 31, an upper transmission shaft 32, a lower transmission shaft 33, extrusion shafts 35, guide shafts 37, a traction roller, and a servo motor. Taking the film conveying direction as a reference, the end of the second frame 31 away from the rotary feeding robot 20 is the first end, and the end close to the rotary feeding robot 20 is the second end; the upper transmission shaft 32 and the lower transmission shaft 33 are respectively rotatably connected to the upper and lower parts of the first end of the second frame 31 for pulling the upper single-layer film and the lower single-layer film; two middle transmission shafts 34 are symmetrically and rotatably connected to the middle of the first end of the second frame 31 up and down, and a first gap is formed between them for clamping and transmitting the middle double-layer film; two extrusion shafts 35 are symmetrically and rotatably connected to the second end of the second frame 31 up and down, and an extrusion gap is formed between them. The extrusion gap is vertically aligned with the first gap. Each end of each extrusion shaft 35 is connected to an extrusion cylinder 36, and a total of four extrusion cylinders 36 are provided for the two extrusion shafts 35 to drive the opening and closing of the extrusion gap; the guide shaft 37 is rotatably connected to the top of the second frame 31 and is located between the upper transmission shaft 32 and the extrusion shaft 35; the traction roller is arranged behind the second frame 31 and rotates under the drive of the servo motor for pulling the film and the thin plate to move synchronously; during film lamination, the upper single-layer film passes through the upper transmission shaft 32 and the guide shaft 37 and then enters the upper part of the extrusion gap. The middle double-layer film horizontally passes through the first gap and then enters the middle part of the extrusion gap. The lower single-layer film passes through the lower transmission shaft 33 and then enters the lower part of the extrusion gap; the rotary feeding robot 20 sends the two thin plates respectively to the middle of the four-layer film. When the front ends of the two thin plates are directly below the extrusion gap, the two clamping components 23 loosen and retreat, and the extrusion cylinders 36 drive the two extrusion shafts 35 to approach each other, pressing the four-layer film onto the surface of the thin plate synchronously. At the same time, the traction roller drives the film and the thin plate to move synchronously.

[0046] The film laminating mechanism 30 further includes guide rails and support feet. Two guide rails are arranged in parallel below the second frame 31 along the length direction thereof; four support feet are fixed at the four corner positions of the lower end of the second frame 31, and each support foot is slidably connected to the groove inside the corresponding guide rail so that the second frame 31 moves along the direction of the guide rail.

[0047] During film lamination, due to different models of the thin plates or other factors, it is first necessary to adjust the position of the film laminating device to a suitable film laminating position. Therefore, through the structure of the guide rails and the sliding support feet, the overall position of the film laminating mechanism 30 can be flexibly adjusted. Specifically, two parallel guide rails are arranged below the second frame 31, and the length direction of the guide rails is parallel to the length direction of the second frame 31. The four support feet of the frame are slidably connected to the grooves inside the guide rails, so that the second frame 31 can move left and right along the film conveying direction. The advantage of this guide rail support foot structure design is that the equipment does not need to be disassembled when adjusting the position of the film laminating mechanism 30, which greatly shortens the adjustment time required by the operator and is time-saving and labor-saving;

[0048] The film laminating mechanism 30 includes an upper driving shaft 32, a lower driving shaft 33, a middle driving shaft 34, a pressing shaft 35, a guiding shaft 37, a traction roller and a servo motor. Among them, the upper driving shaft 32, the lower driving shaft 33 and the middle driving shaft 34 form a driving shaft group. The upper driving shaft 32 and the lower driving shaft 33 are respectively used to traction the upper single-layer film and the lower single-layer film. The two middle driving shafts 34 clamp the middle double-layer film to form a four-layer film input channel; the two pressing shafts 35 symmetrically arranged up and down are driven to open and close by four pressing cylinders 36, constituting the pressing component of the film laminating mechanism 30. The pressing component ensures that the film is closely attached to the thin plate; the guiding shaft 37 is used to guide the upper single-layer film into the pressing gap. In order to better guide the upper single-layer film into the pressing gap, at least one guiding shaft 37 is provided; during film lamination, the four-layer film (upper single-layer film, middle double-layer film, lower single-layer film) is respectively transmitted to the pressing gap through the driving shaft group. The rotating feeding robot 20 sends two thin plates into the corresponding film interlayers. The pressing cylinder 36 closes the pressing shaft 35, and the four-layer film (including the upper and lower surfaces of the thin plate) is pressed and laminated at one time; the traction roller arranged behind the second rack 31 continuously pulls the film and the thin plate to move forward synchronously, realizing continuous production and avoiding downtime and material stacking;

[0049] When the rotating feeding robot 20 feeds materials, the displacement component 24 plays a role. According to the specific positions of the four-layer film, it adjusts the positions of the clamping component and the thin plate thereon, so that the two thin plates can smoothly enter the corresponding film interlayers. Compared with the prior art, when the film laminating mechanism 30 adjusts its left and right positions through the guide rail, the rotating feeding robot 20 can update the feeding trajectory through the displacement component 24 to ensure that the thin plate always enters the film interlayer in the middle; when the front end of the thin plate moves to the moment directly below the pressing gap, the pressing shaft 35 closes synchronously, and the film pressing and the thin plate conveying are strictly synchronous, making the film laminating mechanism 30 more practical and having great popularization value.

[0050] Compared with the prior art, first, the feeding mechanism 10 in the present invention realizes the purpose of synchronously conveying two thin plates in the vertical direction by arranging two horizontally running conveyor belts 11 running synchronously in the vertical direction. Compared with the traditional single-layer feeding mode, the feeding mechanism 10 conveys double the number of thin plates at the same time, improving the feeding efficiency and increasing the practicability and functionality of the feeding mechanism 10.

[0051] Second, by setting the rotating feeding robot 20, the above structure realizes the purpose of synchronously grasping double-layer thin plates, three-dimensional position adjustment and rotation station switching, thus achieving the technical effect of accurately docking the horizontally running conveyor belt 11 and the film laminating mechanism 30 and avoiding movement interference, and solving the technical problems of low manual handling efficiency and insufficient positioning accuracy.

[0052] Thirdly, the rotary feeding robot 20 feeds two thin plates into the film laminating mechanism 30 simultaneously. The film laminating mechanism 30 can laminate the two thin plates synchronously. By laminating multiple thin plates in parallel, the purpose of doubling the production capacity and continuous production is achieved. In summary, through the setting of the feeding mechanism 10, the rotary feeding robot 20 and the film laminating mechanism 30, the three parts cooperate to work to achieve high-efficiency production, solving the technical problems of low efficiency and disjointed production rhythm of the traditional single-station film laminating device.

[0053] As Figure 5 shown, a specific embodiment provided by the present invention on the basis of the first embodiment is as follows: The linear actuator is a finger cylinder 232, and three finger cylinders 232 are evenly distributed along the length direction in each connecting block 231. Each finger cylinder 232 has two output ends, and the two output ends are respectively connected to two clamping plates 233.

[0054] In the present invention, the linear actuator is a finger cylinder 232, preferably: MHZ2 parallel opening and closing pneumatic fingers (model: MHZ2-16D). Three finger cylinders 232 are evenly distributed along the length direction inside each hollow connecting block 231. The distance between adjacent finger cylinders 232 is 1 / 4 of the total length of the connecting block 231 to ensure the uniform transmission of the clamping force; the length of the clamping plate 233 is adapted to the length of the thin plate. The thin plate is made of 6061-T6 aluminum alloy, taking into account both light weight and bending stiffness. Each finger cylinder 232 has two output ends, and the clamping plate 233 is connected to the output end of the corresponding finger cylinder 232 through a long strip-shaped fixing block; compared with the traditional single-point clamping method, the two-end multi-point clamping method reduces the sagging deformation amount in the middle of the thin plate, and has both scientificity and practicability.

[0055] As Figure 2As shown in the figure, a specific implementation manner provided by the present invention on the basis of the first embodiment is as follows: The feeding mechanism 10 further includes a third rack 12, a driving roller 13, a driven roller 14, and a baffle 15. The height-adjustable third rack 12 has a first end and a second end, the first end is far from the rotary feeding robot 20, and the second end is close to the rotary feeding robot 20; Two driving rollers 13 arranged parallel to each other up and down are arranged at the first end of the third rack 12, and the two driving rollers 13 rotate synchronously under the drive of a driving member; Two driven rollers 14 correspond to the two driving rollers 13 one by one and are rotatably connected to the second end of the third rack 12, and a horizontal conveyor belt 11 is wound around between each driving roller 13 and the driven roller 14; A plurality of detachable baffles 15 are vertically arranged on the outer circumferential surface of each horizontal conveyor belt 11, the length direction of the baffle 15 is parallel to the width direction of the horizontal conveyor belt 11, and the width between any two adjacent baffles 15 is equal to the width of the thin plate; When the horizontal conveyor belt 11 operates, the baffle 15 moves with the conveyor belt and pushes the thin plate to be conveyed towards the second end of the third rack 12 until the thin plate reaches the second end of the third rack 12; At this time, the baffle 15 on the side close to the rotary feeding robot 20 turns downward around the driven roller 14 along with the horizontal conveyor belt 11 and separates from the thin plate, while the baffle 15 on the side far from the rotary feeding robot 20 continues to push the thin plate towards the second end of the third rack 12, so that the thin plate partially protrudes out of the edge of the horizontal conveyor belt 11 and breaks away from the restraint of the baffle 15 under the action of gravity, and accurately falls into the clamping assembly.

[0056] The feeding mechanism 10 in the present invention realizes the efficient, accurate and continuous feeding of thin plates. First of all, the height of the third rack 12 is adjustable. The third rack 12 adopts an inner and outer sleeve type lifting mechanism, which consists of an outer frame and an inner slide rail. The two are fixed at a preset height by bolts. Equally spaced round holes are opened on both sides of the inner slide rail. When adjusting the height, loosen the bolts, manually lift the inner slide rail to the target height and then lock it. The adjustment range is 500-1500mm to adapt to different production line interfaces; The third rack 12 is welded with Q235B square steel, and the load capacity reaches 200kg, ensuring that the double conveyor belts run synchronously without deformation, and the height adjustment of the third rack 12 can be completed within 10 minutes without additional tools;

[0057] Two driving rollers 13 arranged parallel to each other vertically are installed at the first end of the third rack 12 (the side far from the rotary feeding robot 20). The roller body has a diameter of 100 mm and is coated with a polyurethane anti-slip layer. It is connected to the driving motor through a synchronous belt. Two driven rollers 14 are installed at the second end of the third rack 12 (the side close to the rotary feeding robot 20). Both ends of the roller body are rotationally connected to the rack through deep groove ball bearings to ensure the low-resistance operation of the horizontal conveyor belt 11. The horizontal conveyor belt 11 is made of a polyester fiber-reinforced rubber belt, and a plurality of detachable baffles 15 are arranged at intervals on the surface. The baffle 15 is vertically fixed on the surface of the horizontal conveyor belt 11. The length direction of the baffle 15 is parallel to the width of the horizontal conveyor belt 11. The material of the baffle 15 is preferably ABS engineering plastic and can be quickly disassembled and assembled by buckles or bolts. The distance between two adjacent baffles 15 is equal to the width of the thin plate (tolerance ±1 mm), and the position of the buckle of the baffle 15 can be moved to achieve stepless adjustment in the range of 50 - 500 mm, compatible with thin plates of different sizes.

[0058] After the driving motor is started, the two horizontal conveyor belts 11 move synchronously. The baffle 15 pushes the thin plate towards the second end of the third rack 12. When the thin plate reaches the second end of the third rack 12, the baffle 15 on the side close to the rotary feeding robot 20 follows the horizontal conveyor belt 11 and goes around to the lower side of the driven roller 14 and separates from the thin plate. The baffle 15 on the side far from the rotary feeding robot 20 continues to push the thin plate forward, making the front end of the thin plate overhang 50 - 100 mm beyond the edge of the horizontal conveyor belt 11. The thin plate slides into the clamping assembly under the action of gravity.

[0059] The feeding mechanism 10 in the present invention solves the technical pain points of low efficiency and poor compatibility of traditional single-layer feeding through a height-adjustable rack, synchronous feeding of a double-layer horizontal conveyor belt 11, and the separation design of the baffle 15, realizing the high efficiency, precision, and flexibility of thin plate conveying, and providing reliable front-end support for the automatic film laminating production line.

[0060] In order to further increase the convenience and intelligence of the use of the film laminating device, a visual detection module and a central controller can also be set on the rotary feeding robot 20. The visual detection module is installed at the top of the rotary table 22 and is used to detect the image information of the thin plate and the film. The controller is electrically connected to the visual detection module and the displacement assembly 24. The central controller is used to receive the image information of the film and the thin plate, calculate the position deviation between the thin plate and the film, and the central controller controls the displacement assembly 24 to adjust the position of the material clamping assembly 23 according to the position deviation so that the double-layer thin plates enter their respective corresponding film interlayers respectively.

[0061] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A double-layer synchronous continuous film laminating device for thin sheet production, characterized in that , including: A loading mechanism (10), including two horizontal conveyor belts (11) arranged in parallel up and down. Each of the horizontal conveyor belts (11) conveys thin plates in the horizontal direction to achieve double-layer side-by-side feeding; A rotary feeding robot (20), arranged behind the loading mechanism (10), for receiving two thin plates synchronously conveyed from the loading mechanism (10) and transferring the two thin plates into the film laminating mechanism (30); A film laminating mechanism (30), arranged on one side of the rotary feeding robot (20), for synchronously laminating the two thin plates; The rotary feeding robot (20) includes: A first frame (21), arranged behind the loading mechanism (10); A rotary table (22), arranged above the first frame (21), and the rotary table (22) rotates around the vertical direction under the drive of a driving member; Two clamping components (23), arranged above the rotary table (22) and rotating synchronously with the rotary table (22). The two clamping components (23) are respectively aligned with the discharge ends of the two horizontal conveyor belts (11). The clamping components (23) are used to clamp the two thin plates synchronously conveyed from the loading mechanism (10) and then convey them into the corresponding position of the film laminating mechanism (30); A displacement component (24), located on the rotary table (22) and connected to the two clamping components (23), for driving the two clamping components (23) to move in three-dimensional space; Each clamping component (23) includes a connecting block (231), a linear actuator, and a clamping plate (233). The two connecting blocks (231) are of a hollow structure. The two connecting blocks (231) are respectively located at both ends of the thin plate. The displacement component (24) is connected to the corresponding sides of the two connecting blocks (231) for driving the two connecting blocks (231) to move in three-dimensional space. At least one linear actuator is arranged in each connecting block (231); the linear actuator is connected to a pair of clamping plates (233) arranged in parallel up and down, and the two clamping plates (233) are driven to open and close by the linear actuator; The film laminating mechanism (30) includes: A second frame (31). Based on the film conveying direction, one end far from the rotary feeding robot (20) is the first end, and one end close to the rotary feeding robot (20) is the second end; An upper transmission shaft (32) and a lower transmission shaft (33), respectively rotatably connected to the upper and lower parts of the first end of the second frame (31), for pulling the upper single-layer film and the lower single-layer film; Two middle transmission shafts (34), symmetrically rotatably connected to the middle of the first end of the second frame (31) up and down, and a first gap is formed between the two for clamping and transmitting the middle double-layer film; Two extrusion shafts (35) are symmetrically and rotatably connected to the second end of the second frame (31) in the up-and-down direction, and an extrusion gap is formed between them. The extrusion gap is vertically aligned with the first gap. Each end of each extrusion shaft (35) is respectively connected to an extrusion cylinder (36), and a total of four extrusion cylinders (36) are provided for the two extrusion shafts (35) to drive the opening and closing of the extrusion gap; A guiding shaft (37) is rotatably connected to the top of the second frame (31) and is located between the upper transmission shaft (32) and the extrusion shaft (35); A traction roller is arranged behind the second frame (31) and rotates under the drive of a servo motor to drive the film and the thin plate to move synchronously; During film laminating, the upper single-layer film passes through the upper transmission shaft (32) and the guiding shaft (37) and then enters the upper part of the extrusion gap. The middle double-layer film horizontally passes through the first gap and then enters the middle part of the extrusion gap. The lower single-layer film passes through the lower transmission shaft (33) and then enters the lower part of the extrusion gap; The rotary feeding robot (20) sends the two thin plates to the middle of the four-layer film respectively. When the front ends of the two thin plates are directly below the extrusion gap, the two clamping components (23) loosen and retreat, and the extrusion cylinders (36) drive the two extrusion shafts (35) to approach each other, pressing the four-layer film onto the surface of the thin plate synchronously. At the same time, the traction roller drives the film and the thin plate to move synchronously.

2. The double-layer synchronous continuous film laminating device for thin plate production according to claim 1, wherein: The linear actuator is a finger cylinder (232), and three finger cylinders (232) are evenly distributed along the length direction in each connecting block (231). Each finger cylinder (232) has two upper and lower output ends, and the two output ends are respectively connected to two clamping plates (233).

3. The double-layer synchronous continuous film laminating device for thin plate production according to claim 1, wherein: The feeding mechanism (10) further includes: A third frame (12) with adjustable height, having a first end and a second end. The first end is far from the rotary feeding robot (20), and the second end is close to the rotary feeding robot (20); Two driving rollers (13) arranged parallel to each other up and down are arranged at the first end of the third frame (12) and rotate synchronously under the drive of a driving member; Two driven rollers (14) correspond to the two driving rollers (13) one by one and are rotatably connected to the second end of the third frame (12). A horizontal conveyor belt (11) is wound around between each driving roller (13) and the driven roller (14). A plurality of detachable baffles (15) are vertically arranged on the outer circumferential surface of each horizontal conveyor belt (11). The length direction of the baffle (15) is parallel to the width direction of the horizontal conveyor belt (11), and the width between any two adjacent baffles (15) is equal to the width of the thin plate; When the horizontal conveyor belt (11) operates, the baffle (15) moves along with the conveyor belt and pushes the thin plate towards the second end of the third rack (12) until the thin plate reaches the second end of the third rack (12); at this time, the baffle (15) on the side close to the rotary feeding robot (20) turns downward around the driven roller (14) along with the horizontal conveyor belt (11) and separates from the thin plate, while the baffle (15) on the side far from the rotary feeding robot (20) continues to push the thin plate towards the second end of the third rack (12), causing the thin plate to partially protrude from the edge of the horizontal conveyor belt (11) and break away from the restraint of the baffle (15) under the action of gravity, and precisely fall into the clamping assembly.

4. The double-layer synchronous continuous film laminating device for thin plate production according to claim 2, wherein: Four height-adjustable Furniture casters (25) are respectively arranged at the four corner positions below the first rack (21), and a plurality of universal rollers (26) are arranged along the circumferential direction of the rotary table (22) at the top of the first rack (21), and the outer surface of each universal roller (26) is in rolling contact with the lower surface of the rotary table (22).

5. The double-layer synchronous continuous film laminating device for thin plate production according to claim 1, wherein: The film laminating mechanism (30) further includes: Two guide rails, which are arranged in parallel below the second rack (31) along the length direction thereof; Four support feet, which are fixed at the four corner positions at the lower end of the second rack (31), and each support foot is slidably connected to the groove inside the corresponding guide rail so that the second rack (31) moves along the direction of the guide rail.

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