Film coating apparatus

Abstract

This application discloses a coating apparatus, comprising an apparatus body, a material transfer assembly, and a coating assembly. The material transfer assembly is disposed on the apparatus body for conveying the material to be coated. The coating assembly includes a first film-separating shaft, a second film-separating shaft, two film-separating drive members, a film-loading shaft, and a film-pressing shaft. The outer periphery of the film-loading shaft is provided with a rotatable fitting portion for assembling a film roll. The first and second film-separating shafts are rotatably disposed on the apparatus body in a manner that maintains axial parallelism. The two film-separating drive members are respectively rotatably connected to the first and second film-separating shafts. The film-pressing shaft is rollably disposed on the apparatus body and moves integrally toward the film-loading shaft to roll against the film roll on the film-loading shaft, thereby preventing the film roll from deflecting relative to the film-loading shaft when the second film-separating shaft rolls the adhesive layer of the film roll, which would result in lower coating quality.

Description

Technical Field

[0001] This application relates to the field of surface coating technology for materials to be coated, and specifically to a coating device. Background Technology

[0002] Currently, to extend the lifespan of materials such as brochures, posters, and advertising display boards, a lamination process is often performed on the surface of these materials. This lamination process mostly requires a laminating machine. Common laminating machines typically separate the spacer and adhesive layer in the film roll using two rotating shafts before lamination. The spacer is collected on the shaft by the rotation of one shaft, while the adhesive layer is pressed against the surface of the material being laminated by the rotation of the other shaft, thus adhering to the material.

[0003] Most existing laminating machines directly mount the film roll onto the mounting shaft. However, it is generally difficult to mount the film roll seamlessly onto the outer surface of the mounting shaft. This causes the film roll to sometimes deflect relative to the mounting shaft when the shaft is pressing the adhesive layer. This can easily cause the adhesive layer to deflect relative to the corresponding shaft as well, and it is difficult to make close contact with the shaft. Therefore, the deflected part of the adhesive layer is difficult to be pressed tightly against the surface of the material to be laminated by the shaft. This results in a small number of wrinkles after the deflected part of the adhesive layer is pasted onto the material to be laminated, making the lamination quality of the material to be laminated unqualified. Therefore, it is necessary to re-laminate, which will prolong the lamination time of the entire material to be laminated. Utility Model Content

[0004] To address the aforementioned technical problems and achieve at least one advantage of this application, this application provides a coating apparatus, wherein the coating apparatus comprises:

[0005] The device body includes a base, and a material transfer channel is formed inside the base, the material transfer channel penetrating the base;

[0006] The material transfer assembly includes a plurality of material transfer shafts and the same number of material transfer drive components as the material transfer shafts. The plurality of material transfer shafts are rotatably connected to both sides of the base forming the material transfer channel along the forming direction of the material transfer channel for placing the material to be coated. Adjacent material transfer shafts are also kept axially parallel, and one material transfer shaft is driven to be rotatably connected to one material transfer drive component.

[0007] A coating assembly includes a first film-separating shaft, a second film-separating shaft, two film-separating drive components, a film-loading shaft, and a film-pressing shaft. The film-loading shaft is disposed in the material transfer channel of the base, and a rotatable fitting portion is provided on the outer periphery of the film-loading shaft for assembling film rolls. The first film-separating shaft and the second film-separating shaft are rotatably connected to both sides of the base forming the material transfer channel in a manner that maintains axial parallelism, and both the first film-separating shaft and the second film-separating shaft are axially parallel to the same material transfer shaft. The second film-separating shaft is connected to the same material transfer shaft. A gap is formed between the shafts to allow the material to be coated to pass through. The first and second film-separating shafts are rotatably connected to the two film-separating drive members. The pressing shaft is rotatably disposed on both sides of the base forming the material transfer channel and is axially parallel to the loading shaft. The pressing shaft is driven to move integrally toward the loading shaft in a top-to-bottom direction, and at least a portion of the outer periphery of the loading shaft is located on the movement path of the pressing shaft, so that the pressing shaft can rotatably press against the film roll on the loading shaft.

[0008] According to one embodiment of this application, the connection position between the first film-splitting shaft and the base is higher than the connection position between the second film-splitting shaft and the base.

[0009] According to one embodiment of this application, the base is symmetrically provided with transfer parts on opposite sides of the material transfer channel. The positions of the two transfer parts are both higher than the position of the film loading shaft on the base. The base also extends a moving groove in each transfer part in a downward direction. The extension direction of each moving groove is parallel to the moving direction of the film loading shaft. The two moving grooves pass through the two transfer parts and communicate with the material transfer channel. The projections of the two moving grooves about the axial direction of the film loading shaft are coincident. The two ends of the film loading shaft move in the two moving grooves respectively.

[0010] According to one embodiment of this application, the base further extends to form a stop groove on each of the feeding and transferring parts, and the moving groove on each of the feeding and transferring parts is in communication with the stop groove, and they are combined to form a barbed groove structure. The two stop grooves respectively penetrate the two feeding and transferring parts and are in communication with the material transfer channel. The projections of the two stop grooves about the axial direction of the pressing shaft are coincident. The two ends of the pressing shaft are also provided to be movable in the two stop grooves respectively.

[0011] According to one embodiment of this application, the middle part of the film pressing shaft extends outward in a radial direction to form a rolling part, and at least a portion of the outer periphery of the film loading shaft is located on the moving path of the rolling part. The film pressing shaft is also provided with a plurality of protrusions evenly and at intervals in the circumference of the rolling part. Each protrusion is provided to extend to both ends of the rolling part in a direction parallel to the axial direction of the film pressing shaft, and a groove is formed between two adjacent protrusions.

[0012] According to one embodiment of this application, the coating assembly further includes a pair of feeders, each feeder having a rotatable inner ring and a rotatable outer ring, and the two ends of the pressing shaft being connected to the inner rings of the two feeders respectively, and the outer ring of one feeder being rotatably connected to a moving groove and a stopping groove on one of the feeding and moving portions, so that the pressing shaft can be rotatably moved simultaneously to the two feeding and moving portions by the two feeders.

[0013] According to one embodiment of this application, the base is further provided with a pair of recesses symmetrically on both sides of the material transfer channel. Both recesses are formed by being recessed in a downward direction and are connected to the material transfer channel. The two recesses are respectively located below the two transfer portions, and the size of the two recesses is adapted to the dimensions of the two ends of the film loading shaft, so as to place the two ends of the film loading shaft respectively.

[0014] According to one embodiment of this application, the axial length of the film-loading shaft is set to be greater than the distance between the two notches, so that the two ends extend from the notches to the outside of the material transfer channel. The device body further includes a pair of fixing members, each fixing member including a first arm, a second arm, and a locking member. The first arm of one fixing member is rotatably connected to the outside of the base and close to one of the notches. In a cross-sectional view perpendicular to the axial direction of the film-loading shaft, the distance between the center of the circle formed by the rotation of the film-loading shaft and the first arm is less than the radius of the circle formed by the rotation of the first arm. Each first arm forms an abutment portion on its side close to the film-loading shaft, and each first arm rotates such that its respective abutment portion moves along a corresponding... The recessed direction of each of the notches presses against one end of the film-loading shaft. The front end of the first arm of each of the fixing members is provided with a notch to accommodate the second arm. The second arm of each of the fixing members is rotatably connected to the outside of the base. A notch is spaced between each first arm and each second arm. The radius of the circle formed by the rotation of each second arm is not less than the radius of the circle formed by the rotation of the corresponding first arm. The first arm of each of the fixing members is located on the rotation path of the second arm. The outer wall of the front end of each second arm has a connecting structure. Each locking member is movably connected to one of the connecting structures of a second arm. The size of each locking member is larger than the size of the notch.

[0015] According to one embodiment of this application, the coating device further includes a pair of cutting components, each of the cutting components including a cutter. Both cutters are disposed in the material transfer channel and are symmetrically located on both sides of the path formed by the material transfer shaft transmitting the material to be coated. Both cutters are disposed behind the second film-separating shaft in sequence along the path of the material to be coated.

[0016] According to one embodiment of this application, the coating apparatus further includes a winding assembly, which includes a roll spool and a roll drive unit. The roll spool is rotatably connected to both sides of the base forming the material transfer channel and is located at one port at one end of the material transfer channel. The roll spool is connected to the roll drive unit, and the roll drive unit is used to rotate the roll spool. Attached Figure Description

[0017] Figure 1 A perspective view of the coating apparatus described in this application is shown.

[0018] Figure 2 A perspective view of the coating apparatus described in this application is shown from another angle.

[0019] Figure 3 for Figure 2An enlarged view of point A in the coating device shown.

[0020] Figure 4 for Figure 2 An enlarged view of point B in the coating device shown.

[0021] Figure 5 A cross-sectional view of the coating apparatus described in this application is shown. Detailed Implementation

[0022] The following description is intended to disclose this application and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of this application defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of this application.

[0023] Those skilled in the art should understand that, in the disclosure of this application, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this application.

[0024] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0025] refer to Figures 1 to 2 A preferred embodiment of the coating apparatus according to this application will be described in detail below. The coating apparatus includes a device body 10, a material transfer assembly 20 and a coating assembly 30. The device body 10 includes a base 11. A material transfer channel 1101 is formed inside the base 11. Two ports at both ends of the material transfer channel 1101 extend toward opposite ends of the base 11 until the base 11 is penetrated.

[0026] The material transfer assembly 20 is used to transfer a film-to-be-coated material 90 to the material transfer channel 1101 of the base 11. The film coating assembly 30 is used to perform a film coating operation on the film-to-be-coated material 90 transferred by the material transfer assembly 20.

[0027] Specifically, the material transfer assembly 20 includes a plurality of material transfer shafts 21 and a number of material transfer drive members 22 equal to the number of material transfer shafts 21. The plurality of material transfer shafts 21 are rotatably connected to both sides of the base 11 forming the material transfer channel 1101 along the forming direction of the material transfer channel 1101, for placing the material to be coated 90, and adjacent material transfer shafts 21 are axially parallel. One material transfer drive member 22 is rotatably connected to one material transfer shaft 21. Therefore, when each material transfer drive member 22 is activated to rotate the corresponding material transfer shaft 21, the material to be coated 90 placed on the plurality of material transfer shafts 21 is driven to enter and exit the interior of the base 11 along the forming direction of the material transfer channel 1101, thereby completing the transfer operation of the material to be coated 90.

[0028] Preferably, each of the material transfer drive components 22 is fixedly connected to the base 11, and each of the material transfer drive components 22 includes a motor, and the drive end of each motor is connected to a material transfer shaft 21, that is, each motor drives a material transfer shaft 21 to rotate synchronously by rotating the drive end to transfer the material to be coated 90.

[0029] Specifically, the coating assembly 30 includes a first film-separating shaft 31, a second film-separating shaft 32, two film-separating drive components 33, a film-loading shaft 34, and a film-pressing shaft 35. The film-loading shaft 34 is disposed in the material transfer channel 1101 of the base 11, and a rotatable fitting part 341 is provided on the outer periphery of the film-loading shaft 34 for assembling a film roll 80. It should be noted that the film roll 80 includes a spacer 81 and an adhesive layer 82. The film roll 80 is formed by winding the spacer 81 and the adhesive layer 82 together. When the film roll 80 is used for coating operations, the spacer 81 and the adhesive layer 82 of the film roll 80 need to be separated, and the adhesive surface of the adhesive layer 82 needs to be adhered to the surface of the material to be coated 90 being transported by the material transfer assembly 20.

[0030] The first film-separating shaft 31 and the second film-separating shaft 32 are rotatably connected to both sides of the base 11 forming the material transfer channel 1101 in a relatively opposite and spaced manner, and both the first film-separating shaft 31 and the second film-separating shaft 32 are axially parallel to the same material transfer shaft 21, wherein the first film-separating shaft 31 is used to wind the spacer 81 of the film roll 80, and the second film-separating shaft 32 is used to wind the adhesive layer 82 of the film roll 80. A gap is formed between the second film-separating shaft 32 and one of the material transfer shafts 21, the gap being for simultaneous passage of only the coating material 90 and the adhesive layer 82.

[0031] The two film-separating drive components 33 are rotatably connected to the first film-separating shaft 31 and the second film-separating shaft 32, respectively. When the two film-separating drive components 33 are activated, the first film-separating shaft 31 is driven to rotatably wind the spacer 81 of the film roll 80 around the outer periphery, and the second film-separating shaft 32 is driven to rotatably roll and press the adhesive layer 82 onto the surface of the film-to-be-coated material 90 passing through the gap, so that the film-to-be-coated material 90 is coated.

[0032] The pressing shaft 35 is rotatably disposed on both sides of the base 11 forming the material transfer channel 1101, and is axially parallel to the film loading shaft 34. The pressing shaft 35 is driven to move integrally toward the film loading shaft 34 in a top-to-bottom direction, and at least a portion of the outer periphery of the film loading shaft 34 is located on the movement path of the pressing shaft 35, so that the pressing shaft 35 rotatably presses against the film roll 80 on the film loading shaft 34.

[0033] Those skilled in the art will understand that before the coating assembly 30 performs the coating operation, the pressing shaft 35 is driven to move toward the loading shaft 34 until the pressing shaft 35 presses against the film roll 80 fitted onto the loading shaft 34. Then, when the first separating shaft 31 and the second separating shaft 32 are driven to rotate by the two already activated separating drive members 33, the pressing shaft 35 presses against the film roll 80, so that the film roll 80 fitted onto the loading shaft 34 is always subjected to equal pressure in the axial direction, causing the inner wall to adhere to the fitting part 341 of the loading shaft 34, so as to maintain axial parallelism with the loading shaft 34. This makes it difficult for the film roll 80 to be driven by the second separating shaft 32 through the driving force formed by winding the adhesive layer 82 and to deflect relative to the loading shaft 34.

[0034] Thus, through the pressing action of the pressing shaft 35, the adhesive layer 82 will not deflect relative to the second separating shaft 32, so that the second separating shaft 32 keeps the adhesive layer 82 tightly rolled and pressed towards the material to be coated 90 in the transmission, so as to avoid wrinkles in the adhesive layer 82 during the bonding with the material to be coated 90, thereby improving the coating quality of the material to be coated 90.

[0035] Preferably, specifically as follows Figure 5 As shown, the connection position of the first film-separating shaft 31 to the base 11 is higher than the connection position of the second film-separating shaft 32 to the base 11, so that the spacer 81 and the adhesive layer 82 of the film roll 80 are separated more thoroughly and mutual interference is avoided.

[0036] Preferably, both of the film-separating drive components 33 are connected to the base 11, and both of the film-separating drive components 33 include drive motors, that is, the two drive ends of the two drive motors are respectively connected to the first film-separating shaft 31 and the second film-separating shaft 32, so that the first film-separating shaft 31 and the second film-separating shaft 32 are driven to rotate respectively.

[0037] It is worth mentioning that, as a variation, one of the two film-separating drive components 33 connected to the second film-separating drive component 32 is configured as a combined structure formed by a drive motor and a telescopic cylinder. The second film-separating shaft 32 is connected to the drive end of the drive motor in the combined structure, and the drive motor in the combined structure is synchronously movably connected to the telescopic end of the telescopic cylinder in the combined structure. The drive motor in the combined structure, driven by the telescopic cylinder, moves the second film-separating shaft 32 relatively closer to the corresponding material transfer shaft 21, so that the gap size formed between the second film-separating shaft 32 and the corresponding material transfer shaft 21 is adjusted to be smaller or larger. In this way, the size of the gap formed between the second film-separating shaft 32 and the corresponding material transfer shaft 21 is adjusted according to the size of the material to be coated 90, so that the adhesive layer 82 is more tightly rolled and pressed onto the surface of the material to be coated 90 by the second film-separating shaft 32.

[0038] Preferably, the base 11 is symmetrically provided with a transfer portion 111 on both sides of the material transfer channel 1101. As a preferred embodiment, such as... Figure 1 and Figure 2 As shown, the two feeding and transferring parts 111 are positioned higher than the film-loading shaft 34 located on the base 11. The base 11 also has a moving groove 1102 extending downwards from each feeding and transferring part 111. The extending direction of each moving groove 1102 is parallel to the moving direction of the film-loading shaft 35. The two moving grooves 1102 pass through the two feeding and transferring parts 111 respectively and communicate with the material transfer channel 1101. The projections of the two moving grooves 1102 about the axial direction of the film-loading shaft 35 coincide. The two ends of the film-loading shaft 35 move within the two moving grooves 1102 respectively.

[0039] Thus, when the two ends of the pressing shaft 35 are respectively located in the two moving grooves 1102, under the action of gravity, the pressing shaft 35 moves in a downward direction to automatically press against the film roll 80 on the film loading shaft 34.

[0040] More preferably, the base 11 further extends a stop groove 1103 on each of the feeding and transferring parts 111, and the moving groove 1102 on each of the feeding and transferring parts 111 is in communication with the stop groove 1103, and they are combined to form a hook-shaped groove structure for the movement of the pressing shaft 35. The two stop grooves 1103 respectively penetrate the two feeding and transferring parts 111 and communicate with the material transfer channel 1101, and the projections of the two stop grooves 1103 about the axial direction of the pressing shaft 35 are coincident. The two ends of the pressing shaft 35 are also provided to be movable in the two stop grooves 1103 respectively.

[0041] It is understandable that when the two ends of the pressing shaft 35 are respectively located in the two stop grooves 1103, since one of the stop grooves 1103 and one of the moving grooves 1102 form a barbed groove structure, the pressing shaft 35 is difficult to complete the operation of moving from the stop groove 1103 to the moving groove 1102 on its own without being driven by external force.

[0042] It is worth mentioning that when it is necessary to move the two ends of the pressing shaft 35 from the two stop grooves 1103 to the two corresponding moving grooves 1102, the two ends of the pressing shaft 35 are driven by manual means to be driven simultaneously along the extension direction of the respective moving stop groove 1103 and pass through the corresponding moving groove 1102, so as to complete the transfer operation of the pressing shaft 35 from the moving groove 1102 to the moving groove 1102.

[0043] Preferably, the middle portion of the film-pressing shaft 35 extends radially outward to form a rolling portion 351, and at least a portion of the outer periphery of the film-loading shaft 34 is located on the movement path of the rolling portion 351. Furthermore, specifically as follows... Figure 4 As shown, the pressing shaft 35 also has a plurality of protrusions 352 evenly and at intervals around the rolling part 351. Each protrusion 352 is provided to extend to both ends of the rolling part 351 in a direction parallel to the axial direction of the pressing shaft 35, and a groove 3501 is formed between two adjacent protrusions 352. In this way, the rolling friction between the rolling part 351 and the film roll 80 on the film loading shaft 34 is increased, so that the film roll 80 on the film loading shaft 34 rotates stably and avoids slippage between it and the rolling part 351.

[0044] It should be noted that the axial length of the rolling section 351 is set to be greater than the axial length of the film roll 80.

[0045] Furthermore, the coating assembly 30 also includes a pair of feeders 36, each feeder 36 having a rotatable inner ring and a rotatable outer ring, and the two ends of the pressing shaft 35 are respectively connected to the inner rings of the two feeders 36, and the outer ring of one feeder 36 is rotatably connected to a moving groove 1102 and a stopping groove 1103 on one of the feeding and transferring parts 111, so that the pressing shaft 35 can be rotatably moved simultaneously on the two feeding and transferring parts 111 by the two feeders 36.

[0046] Preferably, each of the feeders 36 is provided with an annular groove on its outer periphery, and the groove of each feeder 36 is located around its respective outer ring. The size of the groove of each feeder 36 is set to be synchronously adapted to the inner edge of the feeder 111 forming the moving groove 1102 and the inner edge of the feeder 111 forming the stop groove 1103. That is, each feeder 36 is configured to engage with one of the feeders 111 of the base 11 through its own groove to prevent the pressure shaft 35 from moving in a direction parallel to its own axis and offset relative to the two feeders 111.

[0047] Preferably, both of the feeders 36 are implemented to include bearings.

[0048] Preferably, the base 11 is also provided with a pair of recesses 1104 symmetrically on both sides of the material transfer channel 1101. Both recesses 1104 are formed by being recessed in a downward direction and are connected to the material transfer channel 1101. The two recesses 1104 are respectively located below the two transfer parts 111, and the size of the two recesses 1104 is adapted to the size of the two ends of the film loading shaft 34, so as to place the two ends of the film loading shaft 34 respectively, thereby limiting the film loading shaft 34 through the two recesses 1104.

[0049] Furthermore, the device body 10 also includes a pair of fixing members 12, which are used to further limit the two ends of the film loading shaft 34 respectively.

[0050] In one embodiment, such as Figure 4As shown, the axial length of the film loading shaft 34 is set to be greater than the distance between the two notches 1104, so that the two ends extend from the notches 1104 to the outside of the material transfer channel 1101. Correspondingly, each of the fixing members 12 includes a first arm 121, a second arm 122, and a locking member 123. The first arm 121 of one of the fixing members 12 is rotatably connected to the outside of the base 11 and close to one of the recesses 1104. In a cross-sectional view perpendicular to the axial direction of the film-loading shaft 34, the distance between the center of the circle formed by the rotation of the film-loading shaft 34 and the first arm 121 is less than the radius of the circle formed by the rotation of the first arm 121. Each of the first arms 121 forms an abutment portion 1211 on the side near the film-loading shaft 34. Each of the first arms 121 rotates so that its respective abutment portion 1211 presses against one end of the film-loading shaft 34 along the concave direction of the corresponding recess 1104, so that the two ends of the film-loading shaft 34 placed in the two recesses 1104 are pressed against the bottom position of the two recesses 1104. In addition, each of the fixing members 12 has a notch 12101 at the front end of the first arm 121 for receiving the second arm 122.

[0051] The second arm 122 of each of the fixing members 12 is rotatably connected to the outside of the base 11, and a notch 1104 is spaced between one of the first arms 121 and one of the second arms 122. The radius of the circle formed by the rotation of each second arm 122 is not less than the radius of the circle formed by the rotation of the corresponding first arm 121. The first arm 121 of each fixing member 12 is located on the rotation path of the second arm 122. When the first arm 121 of each fixing member 12 presses against one end of the film mounting shaft 34, the corresponding second arm 122 rotates so that its middle part is received in the notch 12101 of the first arm 121. The front end outer wall of each second arm 122 has a connecting structure 1221 for connection with the locking member 123.

[0052] Each of the locking elements 123 is movably connected to a connection structure 1221 of a second arm 122, and the size of each locking element 123 is larger than the size of the notch 12101, so that when a second arm 122 is received in the notch 12101 of a corresponding first arm 121, the corresponding locking element 123 is configured to move closer to and further away from the notch 12101 of the corresponding first arm 121.

[0053] Understandably, when one of the locking members 123 moves closer to the notch 12101 corresponding to one of the first arms 121, the locking member 123 gradually abuts against the first arm 121 along the axial direction of the second arm 122, so that the first arm 121 presses one end of the film-loading shaft 34 against the bottom of the notch 1104 by the abutting action of the locking member 123. In this way, the two ends of the film-loading shaft 34 are stably limited in the two notches 1104 by the two fixing members 12.

[0054] It is worth mentioning that when the film-loading shaft 34 needs to be replaced, the locking member 123 in each of the fixing members 12 is first moved away from the first arm 121 along the axial direction of the corresponding second arm 122, so that the abutting force on the first arm 121 disappears. Then, the second arm 122 received in the notch 12101 of the first arm 121 is separated from the first arm 121, so that the two ends of the film-loading shaft 34 no longer contact the two first arms 121, so that the movement path of the film-loading shaft 34 away from the two notches 1104 is unobstructed, thereby facilitating the replacement operation.

[0055] Preferably, the connection structure 1221 of each second arm 122 is threaded, and each locking member 123 is provided with a Phillips head handle nut, that is, one locking member 123 is connected to one second arm 122 by means of a threaded connection.

[0056] Furthermore, the device body 10 also includes an unwinding member 13. Preferably, the unwinding member 13 includes an unwinding shaft 131 and at least one unwinding drive 132, wherein the unwinding shaft 131 is used to wind the film to be coated 90 around its outer periphery for transmission by the material transfer assembly 20 so that the film to be coated 90 is coated by the coating assembly 30. The two ends of the unwinding shaft 131 are rotatably connected to opposite sides of the base 11 forming the material transfer channel 1101, and the unwinding shaft 131 is located at one port at one end of the material transfer channel 1101. In addition, one end of each unwinding shaft 131 is synchronously rotatably connected to one unwinding drive 132, that is, by activating each unwinding drive 132 to rotate the unwinding shaft 131, the film to be coated 90 wound around the outer periphery of the unwinding shaft 131 rotates accordingly for transmission by the material transfer assembly 20.

[0057] Furthermore, the coating device also includes a pair of edge-cutting components 40, which are used to cut off excess edges and corners of the adhesive layer 82 after the adhesive layer 82 is pasted to the material to be coated 90.

[0058] It should be added that, in order to ensure that the adhesive layer 82 is completely attached to the surface of the material to be coated 90, the width of the adhesive layer 82 is generally greater than the width of the material to be coated 90. As a result, after the adhesive layer 82 is attached to the material to be coated 90, there will be some excess at the edges and corners, which requires the two cutting components 40 to perform corresponding cutting operations.

[0059] In one example, each of the cutting components 40 includes two cutting tools, both of which are disposed in the material transfer channel 1101 and symmetrically located on both sides of the path formed by the material transfer shaft 21 for transferring the film-coating material 90. Both cutting tools are disposed behind the second film-separating shaft 32 in sequence along the path of the film-coating material 90 to perform a cutting operation on the portion of the adhesive layer 82 adhered to the film-coating material 90 extending to both sides of the path formed by transferring the film-coating material 90.

[0060] In another example, such as Figure 3 As shown, each of the edge-cutting components 40 includes an edge-cutting drive unit 41, a detection element 42, a telescopic unit 43, a cutting blade 44, and a control unit 45. One of the detection elements 42 and one of the telescopic units 43 are moved to positions above both sides of the transport path of the material to be coated 90 by being driven by the same edge-cutting drive unit 41, with the two detection elements 42 located on opposite sides of the transport path of the material to be coated 90. Furthermore, one detection element 42 is communicatively connected to one control unit 45, and the detection element 42 is used to detect the position signal on one side of the material to be coated 90 and transmit the detected position signal to the control unit 45.

[0061] The two telescopic units 43 are also located above the two sides of the transmission path of the material to be coated 90.

[0062] One of the cutters 44 is driven and movably connected to one of the telescopic units 43, and the cutter 44 moves relative to the conveying material 90 to be coated by being driven by the telescopic unit 43. One of the detection elements 42 and the corresponding cutter 44 are arranged one after the other along a direction parallel to the conveying direction of the material 90 to be coated. In addition, both cutters 44 are arranged behind the second film-separating shaft 32 along the path of the material 90 to be coated.

[0063] One of the edge-cutting drive units 41 and one of the telescopic units 43 are controllably connected to one of the control units 45, so that one of the edge-cutting drive units 41 and one of the telescopic units 43 can be controlled by one of the control units 45 to start and stop.

[0064] It should be noted that when one of the detection elements 42 fails to detect the side corresponding to the material to be coated 90, such as when the distance between the detection position of one of the detection elements 42 and the side corresponding to the material to be coated 90 is large, the detection element 42 will transmit a signal indicating that a predetermined position has not been detected to the corresponding control unit 45. When the control unit 45 receives the signal indicating that a predetermined position has not been detected from the corresponding detection element 42, it will send a control command to the corresponding edge-cutting drive unit 41, so that the corresponding edge-cutting drive unit 41 drives the corresponding detection element 42 to perform the operation. The measuring element 42 moves toward the side corresponding to the material to be coated 90 until the detection position of the corresponding measuring element 42 coincides with the side corresponding to the material to be coated 90. That is, the area below the corresponding measuring element 42 is the side corresponding to the material to be coated 90. At this time, the corresponding control unit 45 also sends a control command to the corresponding telescopic unit 43 so that the corresponding cutter 44 is driven to move downward toward the side corresponding to the material to be coated 90 and begins to cut the part of the adhesive layer 82 that is not adhered to the material to be coated 90.

[0065] It is worth mentioning that the adhesive layer 82 of the film roll 80 does not affect the detection operation of the two detection elements 42, that is, the two detection elements 42 can detect the film material 90 to be coated through the adhesive layer 82.

[0066] In one embodiment, both of the cutting drive units 41 include telescopic cylinders, and the two telescopic cylinders are respectively connected to the two sides of the base 11 forming the material transfer channel 1101. Each telescopic cylinder has a telescopic end that is retractable. The telescopic end of each telescopic cylinder is connected to a detection element 42 and a telescopic unit 43. Each telescopic cylinder moves a corresponding detection element 42 toward the material to be coated 90 by extending the telescopic end until the corresponding detection element 42 is moved above the position on the corresponding side and the position on the corresponding side of the material to be coated 90 is detected, thereby enabling the cutter 44 to be used for cutting operations.

[0067] In another embodiment, such as Figure 3As shown, each of the edge-cutting drive units 41 includes an edge-cutting drive member 411 and a transmission member 412, wherein two edge-cutting drive members 411 are respectively connected to the two sides of the base 11 forming the material transfer channel 1101, and one of the transmission members 412 drives one of the detection members 42 and one of the telescopic units 43 to move by being driven by one of the edge-cutting drive members 411.

[0068] Preferably, such as Figure 3 As shown, each transmission component 412 includes a screw 4121, a slider 4122, and a guide rail 4123. One screw 4121 is synchronously rotatably connected to one of the edge-cutting drive components 411, and extends above the path of the material to be coated 90 along a direction parallel to the moving direction of one of the detection components 42. One slider 4122 is threadedly connected to one of the screws 4121, and is movably connected to one of the guide rails 4123. One detection component 42 and one telescopic unit 43 are both connected to the bottom of one slider 4122. Two guide rails 4123 are also respectively connected to both sides of the base 11 forming the material transfer channel 1101, and each guide rail 4123 extends above the path of the material to be coated 90 along a direction parallel to the moving direction of the corresponding slider 4122.

[0069] It is understandable that, such as Figure 3 As shown, when one of the cutting edge driving components 411 is activated, the screw 4121 in the corresponding transmission component 412 is driven to rotate synchronously. Due to the limiting effect of the guide rail 4123 in each transmission component 412, the slider 4122 in the corresponding transmission component 412 is limited and moves along the extension direction of the corresponding guide rail 4123, thereby causing one of the detection components 42 and one of the telescopic units 43 to move synchronously.

[0070] Preferably, both of the cutting edge drive members 411 are implemented to include drive motors.

[0071] Preferably, both detection elements 42 are implemented to include laser sensors, each cutter 44 is configured as a blade, and both control units 45 are implemented to include laser sensor controllers.

[0072] Preferably, both telescopic units 43 are implemented to include telescopic cylinders, and one of the cutters 44 is connected to the telescopic end of one of the telescopic cylinders for cutting.

[0073] In addition, the coating device also includes a winding assembly 50. Preferably, the winding assembly 50 includes a roll spool 51 and a roll drive unit 52. The roll spool 51 is rotatably connected to both sides of the base 11 forming the material transfer channel 1101, and is located at two ports at both ends of the material transfer channel 1101, respectively, along with the unwinding shaft 131. The roll spool 51 is driven and rotatably connected to the drive end of the roll drive unit 52. Thus, when the roll drive unit 52 is activated, the roll spool 51 is synchronously driven and rotated to wind the coated material 90.

[0074] It is worth mentioning that a bearing is provided at each end of the roll shaft 51 to connect with the base 11. That is, the roll shaft 51 is rotatably connected to the base 11 to form the opposite sides of the material transfer channel 1101 through the two bearings.

[0075] In one embodiment, the roll drive unit 52 includes a roll drive component and a driving component, wherein the roll drive component is connected to the base 11 and is used to drive the driving component. The driving component is driven by the roll drive component to rotate the roll spool 51, so that the roll spool 51 winds the coated material 90.

[0076] Preferably, the driving component includes a driving gear and a driven gear, wherein the driving gear is synchronously rotatably connected to the roll drive. The driven gear is rollably engaged with the driving gear and is mounted on one end of the roll shaft 51. Thus, when the roll drive is activated, the driving gear is driven to rotate synchronously, thereby driving the driven gear to rotate, which in turn drives the roll shaft 51 to rotate for winding the material to be coated 90.

[0077] Preferably, the roll drive is implemented to include a drive motor.

[0078] Those skilled in the art should understand that the embodiments of this application described above and shown in the accompanying drawings are merely examples and do not limit the scope of this application. The advantages of this application have been fully and effectively implemented. The functional and structural principles of this application have been demonstrated and explained in the embodiments, and any variations or modifications can be made to the implementation of this application without departing from the stated principles.

Claims

1. A coating device, characterized in that, The coating device includes: The device body includes a base, and a material transfer channel is formed inside the base, the material transfer channel passing through the base; The material transfer assembly includes a plurality of material transfer shafts and the same number of material transfer drive components as the material transfer shafts. The plurality of material transfer shafts are rotatably connected to both sides of the base forming the material transfer channel along the forming direction of the material transfer channel for placing the material to be coated. Adjacent material transfer shafts are also kept axially parallel, and one material transfer shaft is driven to be rotatably connected to one material transfer drive component. A coating assembly includes a first film-separating shaft, a second film-separating shaft, two film-separating drive components, a film-loading shaft, and a film-pressing shaft. The film-loading shaft is disposed in the material transfer channel of the base, and a rotatable fitting portion is provided on the outer periphery of the film-loading shaft for assembling film rolls. The first film-separating shaft and the second film-separating shaft are rotatably connected to both sides of the base forming the material transfer channel in a manner that maintains axial parallelism, and both the first film-separating shaft and the second film-separating shaft are axially parallel to the same material transfer shaft. The second film-separating shaft is connected to the same material transfer shaft. A gap is formed between the shafts to allow the material to be coated to pass through. The first and second film-separating shafts are rotatably connected to the two film-separating drive members. The pressing shaft is rotatably disposed on both sides of the base forming the material transfer channel and is axially parallel to the loading shaft. The pressing shaft is driven to move integrally toward the loading shaft in a top-to-bottom direction, and at least a portion of the outer periphery of the loading shaft is located on the movement path of the pressing shaft, so that the pressing shaft can rotatably press against the film roll on the loading shaft.

2. The coating device according to claim 1, characterized in that, The connection position between the first film-splitting shaft and the base is higher than the connection position between the second film-splitting shaft and the base.

3. The coating device according to claim 2, characterized in that, The base is symmetrically provided with transfer parts on both sides of the material transfer channel. The positions of the two transfer parts are higher than the position of the film loading shaft on the base. The base also extends a moving groove in each transfer part from top to bottom. The extension direction of each moving groove is parallel to the moving direction of the film loading shaft. The two moving grooves pass through the two transfer parts and communicate with the material transfer channel. The projections of the two moving grooves about the axial direction of the film loading shaft are coincident. The two ends of the film loading shaft move in the two moving grooves respectively.

4. The coating apparatus according to claim 3, characterized in that, The base also extends to form a stop groove on each of the feeding and transferring parts, and the moving groove on each of the feeding and transferring parts is in communication with the stop groove, and they are combined to form a barbed groove structure. The two stop grooves pass through the two feeding and transferring parts respectively and are in communication with the material transfer channel. The projections of the two stop grooves about the axial direction of the pressing shaft are coincident. The two ends of the pressing shaft are also provided to be movable in the two stop grooves respectively.

5. The coating apparatus according to claim 4, characterized in that, The middle part of the film pressing shaft extends outward in a radial direction to form a rolling part, and at least a portion of the outer periphery of the film loading shaft is located on the moving path of the rolling part. The film pressing shaft also has a plurality of protrusions uniformly and spaced apart in the circumference of the rolling part. Each protrusion is set to extend to both ends of the rolling part in a direction parallel to the axial direction of the film pressing shaft, and a groove is formed between two adjacent protrusions.

6. The coating apparatus according to claim 5, characterized in that, The coating assembly further includes a pair of feeders, each of which has a rotatable inner ring and a rotatable outer ring, and the two ends of the pressing shaft are respectively connected to the inner rings of the two feeders, and the outer ring of one feeder is rotatably connected to a moving groove and a stopping groove on one of the feeding and moving parts, so that the pressing shaft can be rotatably moved simultaneously to the two feeding and moving parts by the two feeders.

7. The coating apparatus according to claim 6, characterized in that, The base is also provided with a pair of recesses symmetrically on both sides of the material transfer channel. Both recesses are formed by being recessed from top to bottom and are connected to the material transfer channel. The two recesses are respectively located below the two transfer parts, and the size of the two recesses is adapted to the size of the two ends of the film loading shaft, so as to place the two ends of the film loading shaft respectively.

8. The coating apparatus according to claim 7, characterized in that, The axial length of the film-loading shaft is set to be greater than the distance between the two notches, so that both ends extend from the notches to the outside of the material transfer channel. The device body also includes a pair of fixing members, each fixing member including a first arm, a second arm, and a locking member. The first arm of one fixing member is rotatably connected to the outside of the base and close to one of the notches. In a cross-sectional view perpendicular to the axial direction of the film-loading shaft, the distance between the center of the circle formed by the rotation of the film-loading shaft and the first arm is less than the radius of the circle formed by the rotation of the first arm. Each first arm forms an abutment portion on its side close to the film-loading shaft, and each first arm rotates such that its abutment portion follows the direction of a corresponding notch. The recessed direction presses against one end of the film mounting shaft. The front end of the first arm of each fixing member is provided with a notch to accommodate the second arm. The second arm of each fixing member is rotatably connected to the outside of the base. A notch is spaced between one first arm and one second arm. The radius of the circle formed by the rotation of each second arm is not less than the radius of the circle formed by the rotation of the corresponding first arm. The first arm of each fixing member is located on the rotation path of the second arm. The outer wall of the front end of each second arm has a connecting structure. Each locking member is movably connected to one of the connecting structures of a second arm. The size of each locking member is larger than the size of the notch.

9. The coating apparatus according to claim 8, characterized in that, The coating device further includes a pair of cutting assemblies, each of which includes a cutter. Both cutters are disposed in the material transfer channel and are symmetrically located on both sides of the path formed by the material transfer shaft carrying the material to be coated. Both cutters are disposed behind the second film-separating shaft in sequence along the path of the material to be coated.

10. The coating apparatus according to claim 9, characterized in that, The coating device further includes a winding assembly, which includes a roll spool and a roll drive unit. The roll spool is rotatably connected to both sides of the base forming the material transfer channel and is located at one port at one end of the material transfer channel. The roll spool is connected to the roll drive unit, and the roll drive unit is used to rotate the roll spool.

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