Coating machine

Abstract

The coating machine comprises a mounting frame, an unwinding support, a winding support, a first coating mechanism, a first drying oven, a second coating mechanism and a second drying oven, the mounting frame comprises a top layer and a bottom layer, the first coating mechanism and the first drying oven are mounted on the top layer, and the second coating mechanism and the second drying oven are mounted on the bottom layer; the second coating mechanism is correspondingly positioned below the first coating mechanism and the first drying oven; at least one end of the first drying oven is provided with at least one first reversing mechanism, a coiled material on the unwinding support enters the first drying oven after being coated with a first surface through the first coating mechanism, and the coiled material can be folded back at least once in the first drying oven through the at least one first reversing mechanism. The coiled material can move to the second coating mechanism after being dried by the first drying oven, enters the second drying oven after being coated with the second surface, and moves to the winding support to be wound after being dried, so that the drying efficiency can be improved, and the space is saved.

Description

Technical Field

[0001] The present invention relates to the field of coating, and further to a coating machine. Background Art

[0002] Coating machines are mainly used in the surface coating process production of lithium battery substrates, metal platinum materials, films, paper, etc. They are used to apply a layer of slurry, glue, coating or ink with specific functions on the rolled substrate, and then cut it into sheets or hand rolls after drying.

[0003] Existing coating machines are usually unidirectional, with the uncoated coil placed at one end and the coated coil rolled up at the other end. The production line is long, requires a large space, and can only coat in one direction. If double-layer coating is to be achieved, the coil needs to be moved to the coating end for re-coating, which results in low coating efficiency. Summary of the Invention

[0004] In response to the above technical problems, the object of the present invention is to provide a coating machine, in which at least one end of the first oven of the coating machine is provided with at least one first reversing mechanism. After the coil is coated on the first surface by the first coating mechanism, it enters the first oven. The at least one first reversing mechanism can make the coil fold back at least once in the first oven, thereby improving the drying efficiency and saving space.

[0005] In order to achieve the above object, the present invention provides a coating machine, comprising:

[0006] A mounting frame, an unwinding frame, a rewinding frame, a first coating mechanism, a first oven, a second coating mechanism, and a second oven, wherein the mounting frame includes a top layer and a bottom layer, the first coating mechanism and the first oven are mounted on the top layer, the second coating mechanism and the second oven are mounted on the bottom layer, and are located below the first coating mechanism and the first oven respectively;

[0007] The first oven has a first end close to the first coating mechanism and a second end away from the first coating mechanism. A first suspension air blowing rod is provided at the second end of the first oven. After the web on the unwinding support passes through the first coating mechanism and is coated on the first surface, the web enters the first oven from the first end and moves toward the second end. When passing through the first suspension air blowing rod, the web can turn back and move toward the first end.

[0008] The first suspension blowing stick has a plurality of first blowing holes on a side away from the first end, through which gas can be discharged toward the web, so as to exert a force on the web passing through the first suspension blowing stick, so that the web maintains a certain distance from the first suspension blowing stick when passing through the first suspension blowing stick;

[0009] After the coil is dried in the first oven and leaves the first end, it can move to the second coating mechanism, enter the second oven after being coated on the second surface, and move to the winding support for winding after being dried.

[0010] In one embodiment, the second oven has a first end proximate to the second coating mechanism and a second end distal to the second coating mechanism. A second suspension air blowing rod is provided at the second end. After the web is coated on the second surface by the second coating mechanism, it enters the second oven from the first end and moves toward the second end. When passing the second suspension air blowing rod, the web can turn back and move toward the first end.

[0011] The second suspension blowing stick has a plurality of second blowing holes on a side away from the first end, through which gas can be output toward the coiled material to apply a force to the coiled material passing through the second suspension blowing stick, so that the coiled material maintains a certain distance from the second suspension blowing stick when passing through the second suspension blowing stick.

[0012] In one embodiment, the axis direction of the first suspension blowing stick is perpendicular to the moving direction of the coil, and the first suspension blowing stick includes a plurality of rows of the first blowing holes arranged along the axis direction;

[0013] The axis direction of the second suspension blowing stick is perpendicular to the moving direction of the coil, and the second suspension blowing stick includes multiple rows of second blowing holes arranged along the axis direction.

[0014] In one embodiment, the coating machine further includes a flipping system. When the coiled material after being dried in the first oven moves to the flipping system, the flipping system can flip the coiled material and swap the positions of the first surface and the second surface. After being flipped by the flipping system, the coiled material can move to the second coating mechanism to coat the second surface.

[0015] In one embodiment, the flipping system includes a first flipping and blowing rod, a second flipping and blowing rod, and at least one guide rod, wherein the second flipping and blowing rod is located below the first flipping and blowing rod, and the first flipping and blowing rods and the second flipping and blowing rods are arranged alternately, and the at least one guide rod is arranged on one side of the first flipping and blowing rods; the first flipping and blowing rods form a preset angle with a first direction, wherein the first direction is the direction of movement of the coiled material after being dried in the first oven;

[0016] When the coil passes through the first flipping and blowing rod, the coil is flipped for the first time and moves in the second direction; when passing through the at least one guide roller, the coil is flipped for the second time and moves in the opposite direction of the second direction; when passing through the second flipping and blowing rod, the coil is flipped for the third time and returns to move in the first direction.

[0017] In one embodiment, the flipping system also includes a movable frame, a support frame and a driving member, the movable frame is movably mounted on the support frame, the second flipping and blowing stick is mounted on the movable frame, the driving member is mounted on the support frame and connected to the movable frame, the driving member can drive the movable frame to move horizontally relative to the support frame, so as to drive the second flipping and blowing stick to move horizontally relative to the support frame, and is used to adjust the moving path of the coil after passing the second flipping and blowing stick.

[0018] In one embodiment, the flipping system further includes a position sensor and a controller, and the controller is communicatively connected to the position sensor and the driving member respectively. The position sensor is arranged on the moving path of the coil after leaving the second flipping and blowing stick, and is used to detect the position offset of the coil after leaving the second flipping and blowing stick. The controller can control the driving member to drive the second flipping and blowing stick to move horizontally based on the offset, so as to adjust the moving path of the coil after leaving the second flipping and blowing stick.

[0019] In one embodiment, the coating machine further comprises an intermediate layer located between the top layer and the bottom layer;

[0020] The flipping system further comprises a first movable frame, a first supporting frame, and a first driving member, wherein the first supporting frame is mounted on the top layer, the first movable frame is movably mounted on the first supporting frame, the first flipping and blowing stick is mounted on the first movable frame, the first driving member is mounted on the first supporting frame and connected to the first movable frame, the first driving member can drive the first movable frame to move horizontally relative to the first supporting frame, thereby driving the first flipping and blowing stick to move horizontally relative to the first supporting frame, so as to adjust the moving path of the coiled material after passing the first flipping and blowing stick;

[0021] The flipping system also includes a second movable frame, a second support frame and a second driving member. The second support frame is installed on the middle layer. The second movable frame is movably installed on the second support frame. The second flipping and blowing stick is installed on the second movable frame. The second driving member is installed on the second support frame and connected to the second movable frame. The second driving member can drive the second movable frame to move horizontally relative to the second support frame, so as to drive the second flipping and blowing stick to move horizontally relative to the second support frame, which is used to adjust the moving path of the coiled material after passing the second flipping and blowing stick.

[0022] In one embodiment, the flipping system further includes a first position sensor and a first controller, the first controller being in communication with the first position sensor and the first driving member, respectively. The first position sensor is disposed on a moving path of the web after leaving the first flipping and blowing stick, and is configured to detect a first position offset of the web after leaving the first flipping and blowing stick. The first controller is capable of controlling the first driving member to drive the first flipping and blowing stick to move horizontally based on the first position offset, so as to adjust the moving path of the web after leaving the first flipping and blowing stick.

[0023] The flipping system also includes a second position sensor and a second controller, and the second controller is respectively communicated with the second position sensor and the second driving member. The second position sensor is arranged on the moving path of the coil after leaving the second flipping and blowing stick, and is used to detect the second position offset of the coil after leaving the second flipping and blowing stick. The second controller can control the second driving member to drive the second flipping and blowing stick to move horizontally based on the second position offset, so as to adjust the moving path of the coil after leaving the second flipping and blowing stick.

[0024] In one embodiment, the coating machine further includes a first thickness measuring mechanism, which is arranged on the top layer of the mounting frame and on the side of the first coating mechanism away from the first oven. After the coil passes through the first thickness measuring mechanism, it enters the first coating mechanism for the first coating. The first thickness measuring mechanism can measure the thickness of the uncoated coil.

[0025] In one embodiment, the coating machine further includes a plurality of supporting shafts, wherein the supporting shafts are located outside the flipping system, and the plurality of supporting shafts surround and form a receiving space, and the flipping system is installed in the receiving space.

[0026] In one embodiment, the mounting frame further includes an intermediate layer, and the coating machine further includes a second thickness measuring mechanism, which is installed on the intermediate layer and located below the flipping system. The coiled material after passing through the flipping system can be guided to the second thickness measuring mechanism, and the second thickness measuring mechanism is used to measure the thickness of the substrate after the coating is applied to the first surface. After measurement by the second thickness measuring mechanism, the coiled material is guided to the second coating mechanism for a second coating.

[0027] In one embodiment, the coating machine further includes a third thickness measuring mechanism, which is arranged on the bottom layer and located below the second thickness measuring mechanism. The third thickness measuring mechanism is used to measure the thickness of the coil after coating by the second coating mechanism.

[0028] In one embodiment, the bottom of the first coating mechanism has a first movable channel, and the web dried in the first oven can pass through the first movable channel and enter the turning system;

[0029] A second movable channel is provided below the second coating mechanism, and the coiled material after being dried in the second oven can pass through the second movable channel to the winding support.

[0030] In one embodiment, a first drying component is provided in the first oven, and the first drying component can blow air toward both the top wall and the bottom wall of the first oven;

[0031] A second drying component is provided in the second oven, and the second drying component can blow air toward both the top wall and the bottom wall of the second oven;

[0032] A raw material roll is placed on the winding support. The coiled material in the raw material roll is coated on the second surface by the second coating mechanism and then enters the second drying oven. During the process of moving from the first end to the second end, the coiled material is located between the second drying assembly and the bottom wall of the second drying oven; during the process of moving from the second end to the first end, the coiled material is located between the second drying assembly and the top wall of the second drying oven.

[0033] After the coil is dried in the second oven and leaves the first end, it can be guided to the first coating mechanism, coated on the first surface, and then enter the first oven. During the movement of the coil from the first end to the second end, the coil is located between the first drying component and the bottom wall of the first oven; during the movement from the second end to the first end, the coil is located between the first drying component and the top wall of the first oven. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The preferred embodiments will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0035] Figure 1 1 is a schematic diagram of a three-dimensional structure of a coating machine according to a preferred embodiment of the present invention from one perspective;

[0036] Figure 2 1 is a schematic diagram of the three-dimensional structure of the coating machine according to another preferred embodiment of the present invention;

[0037] Figure 3 1 is a schematic side structural diagram of a coating machine according to a preferred embodiment of the present invention;

[0038] Figure 4 Schematic diagram of the structure of the web moving path of the coating machine according to the preferred embodiment of the present invention;

[0039] Figure 5 1 is a schematic diagram of a three-dimensional structure of a turning system of a coating machine according to a preferred embodiment of the present invention;

[0040] Figure 6 This is another schematic diagram of the three-dimensional structure of the turning system of the coating machine according to the preferred embodiment of the present invention;

[0041] Figure 7 1 is a schematic top view of the structure of the turning system of the coating machine according to the preferred embodiment of the present invention;

[0042] Figure 8 Schematic diagram of the structure inside the oven of a coating machine according to a preferred embodiment of the present invention;

[0043] Figure 9 1 is a schematic diagram of the three-dimensional structure of a coating machine according to another preferred embodiment of the present invention from one perspective;

[0044] Figure 10 1 is a schematic diagram of the three-dimensional structure of a coating machine according to another preferred embodiment of the present invention from another perspective;

[0045] Figure 11 1 is a side structural diagram of a coating machine according to another preferred embodiment of the present invention;

[0046] Figure 12 yes Figure 5 Schematic diagram of the enlarged structure at C in the middle;

[0047] Figure 13 yes Figure 9 Schematic diagram of the enlarged structure at D in the middle;

[0048] Figure 14Schematic diagram of the working state of the suspended blowing rod of the coating machine according to the preferred embodiment of the present invention;

[0049] Figure 15 It is a block diagram schematic diagram of a partial structure of a turning system of a coating machine according to a preferred embodiment of the present invention;

[0050] Figure 16 and Figure 17 It is a block diagram schematically showing a partial structure of a turning system of a coating machine according to another preferred embodiment of the present invention. DETAILED DESCRIPTION

[0051] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific embodiments of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other embodiments can be obtained based on these drawings without inventive work.

[0052] To simplify the drawings, only portions relevant to the invention are schematically depicted in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one component with the same structure or function is schematically depicted or labeled. In this document, "one" not only means "only one" but also "more than one."

[0053] It should be further understood that the term "and / or" used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0054] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0055] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0056] refer to Figures 1 to 17The present application provides a coating machine 100, comprising an unwinding support 10, a first coating mechanism 20, and a first drying oven 30. The unwinding support 10 is adapted to hold a roll of raw material 200 to be coated. The web in the roll of raw material 200 is capable of traveling along a predetermined path. Upon reaching the first coating mechanism 20, the first coating mechanism 20 applies a coating layer to the surface of the web. The coated web then moves forward into the first drying oven 30, where it is dried.

[0057] In the present application, the first oven 30 has a first end 31 close to the first coating mechanism 20 and a second end 32 away from the first coating mechanism 20. The coiled material in the raw material roll 200 after being coated by the first coating mechanism 20 can enter the first oven 30 through the first end 31. Preferably, the coating machine 100 is a lithium battery coating machine, such as a battery electrode separator coating device.

[0058] A first reversing mechanism 331 is provided at the second end 32 of the first oven 30. The raw material roll 200 in the first oven 30 changes its direction of movement through the first reversing mechanism 331, moves toward the first end 31, and leaves the first oven 30 from the first end 31. Figure 4 Preferably, the first reversing mechanism 331 includes two rollers arranged at a preset distance, preferably arranged at intervals in the vertical direction. When the roll passes through the roller located above, the roll switches from horizontal movement to vertical movement. When the roll passes through the roller located below, the roll switches from vertical movement to horizontal movement.

[0059] In this preferred embodiment, after the raw material roll 200 passes through the first coating mechanism 20, a drying operation is performed while the raw material roll 200 moves from the first end 31 to the second end 32 of the first oven 30; and another drying operation is performed while the raw material roll 200 moves from the second end 32 to the first end 31 of the first oven 30. This can increase the movement path of the coated raw material roll in the first oven 30 and improve the drying efficiency.

[0060] refer to Figure 8Furthermore, the first drying oven 30 is provided with a first drying mechanism 341 and a second drying mechanism 342. The first drying mechanism 341 and the second drying mechanism 342 are arranged opposite each other, and a movable passage 340 is formed between the first drying mechanism 341 and the second drying mechanism 342. The web coated by the first coating mechanism 20 can move within the movable passage 340. Preferably, the first drying mechanism 341 and the second drying mechanism 342 are arranged in sequence along the length of the first drying oven 30. Preferably, the first drying mechanism 341 is positioned near the top wall of the first drying oven 30, and the second drying mechanism 342 is positioned near the bottom wall of the first drying oven 30. Specifically, the first drying mechanism 341 is secured to the top wall of the first drying oven 30 via a first fixing rod 351, and the second drying mechanism 342 is secured to the bottom wall of the first drying oven 30 via a second fixing rod 352.

[0061] Specifically, the web includes a first surface and a second surface. When the web passes through the first coating mechanism 20, the first coating mechanism 20 can apply a coating to the first surface of the web. As the web moves from the first end 31 to the second end 32, the first drying mechanism 341 can dry the first surface. When the web passes through the first reversing mechanism 331 located at the second end 32, the positions of the coated first surface and the uncoated second surface are swapped, with the coated first surface located at the bottom. As the web moves from the second end 32 to the first end 31, the second drying mechanism 342 dries the first surface.

[0062] In some variations, a first reversing mechanism 331 is also provided at the first end 31 of the first oven 30. A web moving from the second end 32 toward the first end 31 changes direction again upon passing through the first reversing mechanism 331, moving toward the second end 32. It should be noted that when the web contacts the first reversing mechanism 331 at the first end 31, the coated first surface will come into contact with the first reversing mechanism 331. However, since the coating on the first surface has already been dried twice, it is substantially dry, and therefore, passing through the first reversing mechanism 331 will not significantly affect the coating.

[0063] In some variations, the second end 32 of the first oven 30 is provided with two first reversing mechanisms 331. A web moving from the second end 31 to the second end 32 changes direction again when passing through the first reversing mechanism 331 below, moving toward the first end 31. It should be noted that when the web passes through the first reversing mechanism 331 above the second end 32, the web changes direction for the first time, allowing it to be dried twice within the first oven 30. When the web passes through the first reversing mechanism 331 at the first end 31, the web changes direction for the second time, allowing it to be dried three times within the first oven 30. When the web passes through the first reversing mechanism 331 below the second end 32, the web changes direction for the third time, allowing it to be dried four times within the first oven 30. In other words, in this application, by providing at least one reversing mechanism within the first oven 30, located in the direction of motion of the substrate, the at least one reversing mechanism can change the substrate's direction of motion at least once, allowing the substrate to be dried at least twice within the first oven 30.

[0064] refer to Figure 11 and Figure 14 In one variant embodiment, the first reversing mechanism 331 includes a first suspension air blowing rod 3311, which is positioned at the second end 32 of the first oven 30. A web moving from the first end 31 to the second end 32 within the first oven 30 can reverse and move back toward the first end 31 upon passing through the first suspension air blowing rod 3311. The first suspension air blowing rod 3311 has a plurality of first air holes on a side facing away from the first end 31. These holes deliver air toward the web, exerting a force on the web passing through the first suspension air blowing rod 3311. This ensures that the web maintains a certain distance from the first suspension air blowing rod 3311 as it passes. In this variant embodiment, the web remains suspended when it reverses at the second end 32 of the first oven 30, avoiding direct contact with the first suspension air blowing rod 3311. This prevents wrinkling or deformation of the web as it reverses at the second end, thereby protecting the applied coating.

[0065] Specifically, refer to Figure 14In actual application, the magnitude of the force at different positions along the width direction of the coil may be different. For example, the tension at point A is 300N, and the tension at point B is 200N. If the first reversing mechanism 331 is in the form of a rotating rod in contact with the coil, then the tension on one side of the coil is greater and the tension on the other side is smaller, which will inevitably cause wrinkles and other deformations during the folding process, and will damage the already applied coating. The first suspended air blowing stick 3311 provided in this application is used to guide the coil to fold back. The first suspended air blowing stick 3311 blows air toward the coil. Since the tension at point A is greater, the force applied by the first suspended air blowing stick 3311 to the coil is also greater; since the tension at point B is smaller, the first suspended air blowing stick 3311 blows the coil at point B to a farther position, that is, the distance between point B and the first suspended air blowing stick 3311 is greater than the distance between point A and the first suspended air blowing stick 3311.

[0066] refer to Figures 1 to 4 Furthermore, the coating machine 100 further includes a second coating mechanism 50, a second oven 60, and a mounting rack 70. The first coating mechanism 20 and the first oven 30 are both disposed above the mounting rack 70, and the second coating mechanism 50 and the second oven 60 are both disposed below the mounting rack 70. That is, in the present application, the second coating mechanism 50 and the second oven 60 are disposed on the first floor, and the first coating mechanism 20 and the first oven 30 are disposed on the second floor.

[0067] The coating machine 100 further includes a turning system 80. After the web is dried in the first oven 30, the first surface coated with the coating is located at the bottom, and the second surface uncoated is located at the top. After passing through the turning system 80, the turning system 80 can turn the web so that the first surface coated with the coating is turned upside down and the second surface uncoated is turned downside, so that the second surface uncoated is located at the top when the web enters the second coating mechanism 20.

[0068] Specifically, the flipping system 80 includes a first flipping air-blowing rod 81, which is tilted at a preset angle relative to the web in the direction of the web's movement and positioned above the web. Preferably, the first flipping air-blowing rod 81 forms a 45° angle with the web's movement direction. In other words, the first flipping air-blowing rod 81 forms a preset angle with a first direction, where the first direction is the direction of movement of the web after drying in the first oven 30. When the web moves to the first flipping air-blowing rod 81, the uncoated second surface comes into contact with the second flipping air-blowing rod 81, and a simultaneous flipping and deflection action occurs as the web passes the first flipping air-blowing rod 81. Specifically, after passing through the first flipping air-blowing rod 81, the first surface coated with the coating is preferably folded to be located upward, and the second surface not coated with the coating is folded to be located downward; since the first flipping air-blowing rod 81 is tilted relative to the movement direction of the coil, after passing through the first flipping air-blowing rod 81, the movement direction of the coil is deflected to a certain extent. Preferably, after passing through the first flipping air-blowing rod 81, the movement direction of the coil is deflected by 90°.

[0069] refer to Figure 6 The flipping system 80 preferably includes at least one guide roller, preferably a first guide roller 831 and a second guide roller 832. The first guide roller 831 and the second guide roller 832 are disposed on one side of the first flipping air-blowing roller 81, and the first guide roller 831 is disposed below the second guide roller 832. After the web passes through the first flipping air-blowing roller 81, when the web passes through the first guide roller 831, the first surface of the web coated with the coating contacts the first guide roller 831, and the web switches from horizontal movement to vertical movement. When the web passes through the second guide roller 832, the first surface of the web coated with the coating contacts the second guide roller 832, and the web switches from vertical movement to horizontal movement.

[0070] refer to Figures 5 to 7, the flipping system 80 further includes a second flipping and blowing stick 82. The second flipping and blowing stick 82 is arranged above the first flipping and blowing stick 81 at a certain distance from the first flipping and blowing stick 81, and there is a preset angle between the second flipping and blowing stick 82 and the first flipping and blowing stick 81, that is, the second flipping and blowing stick 82 is staggered with the first flipping and blowing stick 81. Preferably, there is a 90° angle between the second flipping and blowing stick 82 and the first flipping and blowing stick 81. After being flipped by the first flipping and blowing stick 81, the coiled material can be guided to the second flipping and blowing stick 82 for a second folding and deflection. Specifically, when the coiled material passes through the second flipping and blowing stick 82, the second flipping stick 82 contacts the first surface coated with the coating, and the folding and deflection actions occur synchronously when passing through the second flipping and blowing stick 82. Specifically, after passing through the second flip-over blow roller 82, the coated first surface is folded to an upper position, and the uncoated second surface is folded to a lower position. Because the second flip-over blow roller 82 is tilted relative to the direction of movement of the coil, the direction of movement of the coil is deflected to a certain extent after passing through the second flip-over blow roller 82. Preferably, the direction of movement of the coil is deflected by 90° after passing through the second flip-over blow roller 82. When the coil passes through the first flip-over blow roller 81, the coil is folded for the first time and moves in the second direction; when passing through the at least one guide roller, the coil is folded for the second time and moves in the opposite direction of the second direction; when passing through the second flip-over blow roller, the coil is folded for the third time and returns to moving in the first direction.

[0071] In some variations, after drying in the first oven 30, the coiled material can be first folded and deflected by the second flip-over air-blowing rod 82 located above, so that the first coated surface is folded upward. After being guided by the second guide roller 832 and the first guide roller 831, the first coated surface is folded downward. Then, the coiled material is folded and deflected a second time by the first flip-over air-blowing rod 81, so that the first coated surface is folded upward. The first flip-over air-blowing rod 81 and the second flip-over air-blowing rod 82 can blow air into the coiled material as it passes through, so that a certain distance is maintained between the coiled material and the first flip-over air-blowing rod 81 and the second flip-over air-blowing rod 82.

[0072] The flipping system 80 further includes a third guide roller 833, which is arranged on one side of the second flipping air blowing roller 82. After passing through the second flipping air blowing roller 82, the coiled material can change from moving in the horizontal direction to moving in the vertical direction.

[0073] The flipping system 80 further includes a fourth guide roller 834, which is arranged on one side of the second coating mechanism 50. When passing through the fourth guide roller 834, the coil can switch from vertical movement to horizontal movement, and after passing through the fourth guide roller 834, the second surface of the coil that has not been coated is located above, so as to facilitate coating by the second coating mechanism 50.

[0074] refer to Figure 12 and Figure 15 The flipping system 80 further includes a movable frame 841, a support frame 842, and a driving member 843. The movable frame 841 is movably mounted on the support frame 842, the support frame 842 is mounted on the top layer 71, the second flipping air-blowing stick 82 is mounted on the movable frame 841, and the driving member 843 is mounted on the support frame 842 and connected to the movable frame 841. The driving member 843 can drive the movable frame 841 to move horizontally relative to the support frame 842, thereby driving the second flipping air-blowing stick 82 to move horizontally relative to the support frame 842, thereby adjusting the movement path of the coiled material after passing the second flipping air-blowing stick 82. Preferably, the driving member 843 includes a motor. The top surface of the support frame 842 is provided with a guide rail (not shown in the figure), and the bottom surface of the movable frame 841 is provided with a slide groove (not shown in the figure). The movable frame 841 is mounted on the top of the support frame 842. The guide rail and the slide groove cooperate with each other. When the driving member 843 is in operation, it can drive the movable frame 841 to move along the guide rail on the support frame 842. It will be understood that in some modified embodiments, the guide rail is provided on the bottom surface of the movable frame 841, and the slide groove is provided on the top surface of the support frame 842.

[0075] Furthermore, the driving member 843 can drive the movable frame 841 to move back and forth along the second direction to adjust the position of the web in the second direction after passing through the second flipping and blowing roller 82. In other words, the driving member 843 can drive the movable frame 841 to move back and forth along a direction perpendicular to the first direction.

[0076] refer to Figure 15Furthermore, the flipping system 80 also includes a position sensor 844 and a controller 845. The controller 845 is in communication with the position sensor 844 and the driver 843, respectively. The position sensor 844 is positioned along the path of the web after it leaves the second flipping air-blowing stick 82 and is configured to detect the web's positional offset after leaving the second flipping air-blowing stick 82. Based on the offset, the controller 845 controls the driver 843 to move the second flipping air-blowing stick 82 horizontally to adjust the web's path after leaving the second flipping air-blowing stick 82. Specifically, the position sensor 844 is positioned along the path of the web after leaving the second flipping air-blowing stick 82 and is configured to detect the position of the web's edge to determine whether the web has deflected. Preferably, the position sensor 844 is implemented as a photoelectric sensor, comprising a light emitter positioned above the web and a light receiver positioned below the web. The positional offset is determined by the amount of light blocked by the web's edge. In some variations, the position sensor 844 is implemented as an image acquisition device that determines the position offset by acquiring an image of the web edge. After acquiring the position offset, the position sensor 844 transmits the position offset to the controller 845. The controller 845 automatically calculates the movement mode of the flipping and blowing rod 82 based on the position offset and drives the second flipping and blowing rod 82 to move via the driver 843.

[0077] refer to Figures 1 to 4 The coiled material coated by the second coating mechanism 50 can enter the second oven 60 for drying. The structure and working principle of the second oven 60 are the same as those of the first oven 30.

[0078] Specifically, the second oven 60 has a first end 61 close to the second coating mechanism 50 and a second end 62 away from the second coating mechanism 50 . The coiled material in the raw material roll 200 coated by the second coating mechanism 50 can enter the second oven 60 through the first end 61 .

[0079] A second reversing mechanism 631 is provided at the second end 62 of the second oven 60. The coil of the raw material roll 200 in the second oven 60 changes its direction of movement through the second reversing mechanism 631, moves toward the first end 61, and leaves the second oven 60 from the first end 61. Figure 4Preferably, the second reversing mechanism 631 includes two rollers arranged at a preset distance, preferably spaced apart in the vertical direction. When the roll passes through the upper roller, the roll switches from horizontal movement to vertical movement. When the roll passes through the lower roller, the roll switches from vertical movement to horizontal movement.

[0080] In this preferred embodiment, after the raw material roll 200 passes through the second coating mechanism 50, a drying operation is performed during the process of moving from the first end 61 to the second end 62 of the second oven 60; and another drying operation is performed during the process of moving from the second end 62 to the first end 61 of the second oven 60. This can increase the movement path of the coated coil in the second oven 60 and improve the drying efficiency.

[0081] refer to Figure 11 In one variant embodiment, the second reversing mechanism 631 includes a second suspension blow stick 6311 disposed at the second end portion 62. After the web is coated on the second surface by the second coating mechanism 50, it enters the second oven 60 from the first end portion 61 and moves toward the second end portion 62. When passing through the second suspension blow stick 6311, the web can turn back and move toward the first end portion 62. The second suspension blow stick 6311 has a plurality of second blow holes on a side away from the first end portion 61. These second blow holes can discharge air toward the web, exerting a force on the web passing through the second suspension blow stick 6311, ensuring that the web maintains a certain distance from the second suspension blow stick 6311 as it passes. The structure of the second suspension blow stick 6311 is identical to that of the first suspension blow stick 3311 and will not be further described here.

[0082] Preferably, the axis of the first suspension blowing rod 3311 is perpendicular to the direction of movement of the coiled material, and the first suspension blowing rod 3311 includes multiple rows of the first blowing holes arranged along the axis. The axis of the second suspension blowing rod 6311 is perpendicular to the direction of movement of the coiled material, and the second suspension blowing rod 6311 includes multiple rows of the second blowing holes arranged along the axis.

[0083] refer to Figure 8Furthermore, the second oven 60 is provided with a first drying member 641 and a second drying member 642. The first drying member 641 and the second drying member 642 are arranged opposite each other, and a movable channel 640 is formed between the first drying member 641 and the second drying member 642. The web coated by the second coating mechanism 50 can move within the movable channel 640. Preferably, the second oven 60 includes a plurality of first drying members 641 and second drying members 642 arranged in sequence along the length direction. Preferably, the first drying member 641 is disposed near the top wall of the second oven 60, and the second drying member 642 is disposed near the bottom wall of the second oven 60. Specifically, the first drying member 641 is fixed to the top wall of the second oven 60 by a first fixing rod, and the second drying member 642 is fixed to the bottom wall of the second oven 60 by a second fixing rod.

[0084] Specifically, the web includes a first surface and a second surface. As the web passes through the second coating mechanism 50, the second coating mechanism 50 can apply a coating to the first surface of the web. As the web moves from the first end 61 to the second end 62, the first drying member 641 can dry the first surface. As the web passes through the second reversing mechanism 631 disposed at the second end 62, the positions of the coated first surface and the uncoated second surface are swapped, with the coated first surface located at the bottom. As the web moves from the second end 62 to the first end 61, the second drying member 642 dries the first surface.

[0085] refer to Figures 1 to 4 The coating machine 100 further includes a winding bracket 90, on which a winding roller 300 is installed. The coiled material coated by the second coating mechanism 50 and dried in the second oven 60 can be wound on the winding roller 300.

[0086] The unwinding bracket 10, the winding bracket 90, the second coating mechanism 50 and the second oven 60 are all installed on the lower layer, so that it is convenient to install the raw material roll 200 on the winding bracket 90, remove the winding roller 300 wound with a preset thickness from the winding bracket 90, or install the winding roller 300 on the winding bracket 90.

[0087] The coating machine 100 further includes a first thickness measuring mechanism 41, which is mounted on the top floor of the mounting frame 70, that is, on the same floor as the first coating mechanism 20 and the first drying oven 30. The first thickness measuring mechanism 41 is located on the side of the first coating mechanism 20 away from the first drying oven 30. After the web in the raw material roll 200 passes through the first thickness measuring mechanism 41, it enters the first coating mechanism 20 for the first coating. The first thickness measuring mechanism 41 is capable of measuring the thickness of the uncoated web. In some variations, the first thickness measuring mechanism 41 can also be mounted on the same floor as the unwinding support 10. In some variations, the coating machine 100 also includes a first deflection correction mechanism (not shown). After the web passes through the first deflection correction mechanism and enters the first coating mechanism 20, the first deflection correction mechanism corrects the web's orientation to ensure alignment with the first coating mechanism 20, thereby improving coating position accuracy.

[0088] refer to Figure 4 The coating machine 100 further includes a plurality of support shafts 42, which are located outside the flipping system 80. In other words, the plurality of support shafts 42 surround and form a roughly accommodating space 420, and the flipping system 80 is installed in the accommodating space 420. The plurality of support shafts 42 can guide the web to pass over the flipping system 80 to prevent the web from interfering with the flipping system 80, and at the same time improve the compactness of the overall structure of the coating machine 100.

[0089] Specifically, the support shaft 42 includes a first support shaft 421, a second support shaft 422, a third support shaft 423, and a fourth support shaft 424. The first support shaft 421 and the fourth support shaft 424 are spaced apart by a predetermined distance. The second support shaft 422 and the third support shaft 423 are respectively disposed above the first support shaft 421 and the fourth support shaft 424. The first support shaft 421, the second support shaft 422, the third support shaft 423, and the fourth support shaft 424 are generally arranged in a square shape, surrounding the approximately square accommodation space 420. Specifically, when the coil passes through the first support shaft 421, it can be converted from horizontal to vertical movement; when passing through the second support shaft 422, it can be converted from vertical to horizontal movement; when passing through the third support shaft 423, it can be converted from horizontal to vertical movement; and when passing through the fourth support shaft 424, it can be converted from vertical to horizontal movement.

[0090] refer to Figure 4The first coating mechanism 20 has a first movable channel 21 at its bottom. After drying in the first oven 30, the web can pass through the first movable channel 21 and enter the turning system 80. Specifically, when passing through the first coating mechanism 20, the web to be coated is located near the top of the first coating mechanism 20, while the web after passing through the first oven 30 is located near the bottom of the first coating mechanism 20. This prevents the web from interfering with the first coating mechanism 20, improves space utilization, and enhances the compactness of the coating machine 100.

[0091] refer to Figures 1 to 4 The mounting frame 70 includes a top layer 71, a middle layer 72 and a bottom layer 73. The first thickness measuring mechanism 41, the first coating mechanism 20 and the first oven 30 are arranged on the top layer 71; the unwinding bracket 10, the winding bracket 90, the second coating mechanism 50 and the second oven 60 are installed on the bottom layer 73.

[0092] The coating machine 100 further includes a second thickness measuring mechanism 43, which is mounted on the intermediate layer 43. After passing through the flipping system 80, the web can be directed to the second thickness measuring mechanism 43 to measure the thickness of the substrate after the coating is applied to the first surface. After measurement by the second thickness measuring mechanism 43, the web is directed to the second coating mechanism 50 for a second coating. Preferably, the second thickness measuring mechanism 43 is located below the flipping system 80 to facilitate entry of the web into the second thickness measuring mechanism 43 after exiting the flipping system 80.

[0093] refer to Figure 4 A second movable passage 51 is provided below the second coating mechanism 50. The web dried in the second drying oven 60 can pass through the second movable passage 51 to the winding support 90. Specifically, when passing through the second coating mechanism 50, the web that has been coated once is located above the second coating mechanism 50, while the web that has passed through the second drying oven 60 is located below the second coating mechanism 50. This prevents the webs from interfering with each other when passing through the second coating mechanism 50, improves space utilization, and enhances the compactness of the coating machine 100.

[0094] The coating machine 100 further includes a third thickness measuring mechanism 44, which is arranged on the bottom layer 73 and is located below the second thickness measuring mechanism 43. The third thickness measuring mechanism 44 is used to measure the thickness of the coiled material after being coated by the second coating mechanism 50, that is, the thickness of the coiled material coated on both sides.

[0095] The coating machine 100 further includes a second correcting mechanism 45, which is arranged between the third thickness measuring mechanism 44 and the winding bracket 90, and is used to correct the thickness of the coil relative to the winding roller 300 on the winding bracket 90, so as to improve the accuracy of the position of the coil when it is wound on the winding roller 300.

[0096] The second oven 60 is located below the first oven 30, the second coating mechanism 50 is located below the first coating mechanism 20, and the third thickness measuring mechanism 44 is arranged below the third thickness measuring mechanism 43. All of them are located below the turning system 80. The overall structure has a high degree of symmetry, which not only saves space but also facilitates equipment management.

[0097] refer to Figure 9 、 Figure 10 、 Figure 11 as well as Figure 13 In a modified embodiment, the flipping system 80 also includes a first movable frame 851, a first support frame 852 and a first driving member 853, the first support frame 852 is installed on the top layer 71, the first movable frame 851 is movably installed on the first support frame 852, the first flipping air blowing stick 81 is installed on the first movable frame 851, the first driving member 853 is installed on the first support frame 852 and is connected to the first movable frame 851, the first driving member 853 can drive the first movable frame 851 to move horizontally relative to the first support frame 852, so as to drive the first flipping air blowing stick 81 to move horizontally relative to the first support frame 852, and is used to adjust the moving path of the coiled material after passing through the first flipping air blowing stick 81.

[0098] Furthermore, the flipping system 80 also includes a second movable frame 861, a second support frame 862 and a second driving member 863. The second support frame 862 is installed on the middle layer 72. The second movable frame 861 is movably installed on the second support frame 862. The second flipping air blowing stick 82 is installed on the second movable frame 861. The second driving member 863 is installed on the second support frame 862 and is connected to the second movable frame 861. The second driving member 861 can drive the second movable frame 861 to move horizontally relative to the second support frame 862, so as to drive the second flipping air blowing stick 82 to move horizontally relative to the second support frame 862, so as to adjust the moving path of the coil after passing through the second flipping air blowing stick 82.

[0099] exist Figure 3 In the modified embodiment shown, the first flip-over air-blowing rod 81 and the second flip-over air-blowing rod 82 are arranged on different layers. The coiled material first passes through the first flip-over air-blowing rod 81 arranged on the first movable frame 851 and is flipped and deflected 90° for the first time, and then passes through the second flip-over air-blowing rod 82 arranged on the second movable frame 861 and is flipped and deflected 90° for the second time.

[0100] refer to Figure 16 and Figure 17 The flipping system 80 also includes a first position sensor 854 and a first controller 855. The first controller 855 is respectively communicated with the first position sensor 854 and the first driving member 853. The first position sensor 854 is arranged on the moving path of the coil after leaving the first flipping air-blowing stick 81, and is used to detect the first position offset of the coil after leaving the first flipping air-blowing stick 81. The first controller 855 can control the first driving member 853 to drive the first flipping air-blowing stick 81 to move horizontally based on the first position offset, so as to adjust the moving path of the coil after leaving the first flipping air-blowing stick 81.

[0101] The flipping system 80 also includes a second position sensor 864 and a second controller 865, and the second controller 865 is respectively communicated with the second position sensor 864 and the second driving member 863. The second position sensor 864 is arranged on the moving path of the coil after leaving the second flipping air-blowing stick 82, and is used to detect the second position offset of the coil after leaving the second flipping air-blowing stick 82. The second controller 865 can control the second driving member 863 to drive the second flipping air-blowing stick 82 to move horizontally based on the second position offset, so as to adjust the moving path of the coil after leaving the second flipping air-blowing stick 82.

[0102] In a modified embodiment, the positions of the winding roller 300 and the raw material roll 200 are reversed. That is, the winding roller 300 is mounted on the unwinding bracket 10, and the raw material roll 200 is mounted on the winding bracket 90. This modified embodiment differs from the above-described embodiment in that the raw material roll 200 is corrected in position by the second deflection-correcting mechanism 45, then has its thickness measured by the third thickness measuring mechanism 44, and then passes through the second coating mechanism 50 for a first coating before entering the second drying oven 60 for drying. In the second oven 60, the first drying mechanism 341 and the second drying mechanism 342 are disposed in the middle of the second oven 60. A first drying passage (not shown) is defined between the first drying mechanism 341 and the bottom wall of the first oven 60, and a second drying passage (not shown) is defined between the second drying mechanism 342 and the top wall of the second oven 60. After the web is first coated by the second coating mechanism 50, it moves from the first end 61 to the second end 62 within the first drying passage. The first drying mechanism 341 is capable of blowing air directly onto the surface of the coated substrate to dry it. After the web is redirected by the second reversing mechanism 631, it moves from the second end 62 to the first end 61 within the second drying passage. The first drying mechanism 341 is capable of blowing air directly onto the surface of the coated substrate to dry it. After drying in the second oven 60, the base material can be moved from above the second coating mechanism 50 to the second thickness measuring mechanism 43 for a second thickness measurement. It is then flipped by the flipping system 80, and after a second coating by the second coating mechanism 50, it enters the first oven 30 for drying. The structure of the first oven 30 is similar to that of the second oven 60 and will not be described in detail here. After drying in the first oven 30, the coiled material passes from above the first coating mechanism 20, through the flipping system 80, and then passes through the first thickness measuring mechanism 41 for a third thickness measurement. It then enters the winding roller 300 for winding.

[0103] That is, a first drying component is provided in the first oven 30, and the first drying component can blow air toward the top wall of the first oven 30 as well as the bottom wall of the first oven 30; a second drying component is provided in the second oven 60, and the second drying component can blow air toward the top wall of the second oven 60 as well as the bottom wall of the second oven 60. A raw material roll is placed on the winding bracket 90. The coil in the raw material roll is coated with the second surface by the second coating mechanism 50 and then enters the second oven 60. During the movement from the first end to the second end, the coil is located between the second drying component and the bottom wall of the second oven 60; during the movement from the second end to the first end, the coil is located between the second drying component and the top wall of the second oven 60; after the coil is dried by the second oven 60 and leaves the first end, it can be guided to the first coating mechanism 20, coated with the first surface and then enter the first oven 30. During the movement from the first end to the second end, the coil is located between the first drying component and the bottom wall of the first oven 30; during the movement from the second end to the first end, the coil is located between the first drying component and the top wall of the first oven 30.

[0104] Those skilled in the art will appreciate that the embodiments of the present invention described above and shown in the accompanying drawings are intended to be illustrative only and are not intended to limit the present invention. The advantages of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and illustrated in the embodiments. Any variations or modifications may be made to the embodiments of the present invention without departing from the principles described.

Claims

1. A coating machine, characterized in that, include: A mounting frame, an unwinding frame, a rewinding frame, a first coating mechanism, a first oven, a second coating mechanism, and a second oven, wherein the mounting frame includes a top layer and a bottom layer, the first coating mechanism and the first oven are mounted on the top layer, the second coating mechanism and the second oven are mounted on the bottom layer, and are located below the first coating mechanism and the first oven respectively; The first oven has a first end close to the first coating mechanism and a second end away from the first coating mechanism. A first suspension air blowing rod is provided at the second end of the first oven. After the web on the unwinding support passes through the first coating mechanism and is coated on the first surface, the web enters the first oven from the first end and moves toward the second end. When passing through the first suspension air blowing rod, the web can turn back and move toward the first end. The first suspension blowing stick has a plurality of first blowing holes on a side away from the first end, through which gas can be discharged toward the web, so as to exert a force on the web passing through the first suspension blowing stick, so that the web maintains a certain distance from the first suspension blowing stick when passing through the first suspension blowing stick; After the coil is dried in the first oven and leaves the first end, it can move to the second coating mechanism, enter the second oven after being coated on the second surface, and move to the winding support for winding after being dried.

2. The coating machine according to claim 1, characterized in that The second oven has a first end portion close to the second coating mechanism and a second end portion away from the second coating mechanism. A second suspension air blowing rod is provided at the second end portion. After the web is coated on the second surface by the second coating mechanism, it enters the second oven from the first end portion and moves toward the second end portion. When passing the second suspension air blowing rod, the web can turn back and move toward the first end portion. The second suspension blowing stick has a plurality of second blowing holes on a side away from the first end, through which gas can be output toward the coiled material to apply a force to the coiled material passing through the second suspension blowing stick, so that the coiled material maintains a certain distance from the second suspension blowing stick when passing through the second suspension blowing stick.

3. The coating mechanism according to claim 2, characterized in that: The axis direction of the first suspension blowing stick is perpendicular to the moving direction of the coil, and the first suspension blowing stick includes multiple rows of the first blowing holes arranged along the axis direction; The axis direction of the second suspension blowing stick is perpendicular to the moving direction of the coil, and the second suspension blowing stick includes multiple rows of second blowing holes arranged along the axis direction.

4. The coating machine according to claim 2, characterized in that The coating machine further includes a flipping system. When the coiled material after being dried in the first oven moves to the flipping system, the flipping system can flip the coiled material and swap the positions of the first surface and the second surface. After being flipped by the flipping system, the coiled material can move to the second coating mechanism to coat the second surface.

5. The coating machine according to claim 4, characterized in that The flipping system includes a first flipping and blowing rod, a second flipping and blowing rod, and at least one guide rod, wherein the second flipping and blowing rod is located below the first flipping and blowing rod, and the first flipping and blowing rods are arranged alternately, and the at least one guide rod is arranged on one side of the first flipping and blowing rods; the first flipping and blowing rods form a preset angle with a first direction, wherein the first direction is the movement direction of the coiled material after being dried in the first oven; When the coil passes through the first flipping and blowing roller, the coil is flipped for the first time and moves in the second direction; when the coil passes through the at least one guide roller, the coil is flipped for the second time and moves in the opposite direction of the second direction; When passing the second turning and blowing rod, the coiled material is turned over for the third time and returns to move along the first direction.

6. The coating machine according to claim 5, characterized in that The flipping system also includes a movable frame, a support frame and a driving member. The movable frame is movably mounted on the support frame, the second flipping and blowing stick is mounted on the movable frame, the driving member is mounted on the support frame and connected to the movable frame, and the driving member can drive the movable frame to move horizontally relative to the support frame, so as to drive the second flipping and blowing stick to move horizontally relative to the support frame, and is used to adjust the moving path of the coiled material after passing the second flipping and blowing stick.

7. The coating machine according to claim 6, characterized in that The flipping system also includes a position sensor and a controller, and the controller is communicated with the position sensor and the driving member respectively. The position sensor is arranged on the moving path of the coil after leaving the second flipping and blowing stick, and is used to detect the position offset of the coil after leaving the second flipping and blowing stick. The controller can control the driving member to drive the second flipping and blowing stick to move horizontally based on the offset, so as to adjust the moving path of the coil after leaving the second flipping and blowing stick.

8. The coating machine according to claim 5, characterized in that The coater also has an intermediate layer positioned between the top layer and the bottom layer; The flipping system further comprises a first movable frame, a first supporting frame, and a first driving member, wherein the first supporting frame is mounted on the top layer, the first movable frame is movably mounted on the first supporting frame, the first flipping and blowing stick is mounted on the first movable frame, the first driving member is mounted on the first supporting frame and connected to the first movable frame, the first driving member can drive the first movable frame to move horizontally relative to the first supporting frame, thereby driving the first flipping and blowing stick to move horizontally relative to the first supporting frame, so as to adjust the moving path of the coiled material after passing the first flipping and blowing stick; The flipping system also includes a second movable frame, a second support frame and a second driving member. The second support frame is installed on the middle layer. The second movable frame is movably installed on the second support frame. The second flipping and blowing stick is installed on the second movable frame. The second driving member is installed on the second support frame and connected to the second movable frame. The second driving member can drive the second movable frame to move horizontally relative to the second support frame, so as to drive the second flipping and blowing stick to move horizontally relative to the second support frame, which is used to adjust the moving path of the coiled material after passing the second flipping and blowing stick.

9. The coating machine according to claim 8, characterized in that The flipping system further includes a first position sensor and a first controller, the first controller being in communication with the first position sensor and the first driving member, respectively. The first position sensor is disposed on a movement path of the web after leaving the first flipping and blowing roller, and is configured to detect a first position offset of the web after leaving the first flipping and blowing roller. The first controller is capable of controlling the first driving member to drive the first flipping and blowing roller to move horizontally based on the first position offset, thereby adjusting the movement path of the web after leaving the first flipping and blowing roller. The flipping system also includes a second position sensor and a second controller, and the second controller is respectively communicated with the second position sensor and the second driving member. The second position sensor is arranged on the moving path of the coil after leaving the second flipping and blowing stick, and is used to detect the second position offset of the coil after leaving the second flipping and blowing stick. The second controller can control the second driving member to drive the second flipping and blowing stick to move horizontally based on the second position offset, so as to adjust the moving path of the coil after leaving the second flipping and blowing stick.

10. The coating machine according to claim 5, characterized in that The coating machine further includes a first thickness measuring mechanism, which is arranged on the top layer of the mounting frame and on the side of the first coating mechanism away from the first oven. After the coil passes through the first thickness measuring mechanism, it enters the first coating mechanism for the first coating. The first thickness measuring mechanism can measure the thickness of the uncoated coil.

11. The coating machine according to claim 10, characterized in that The coating machine further includes a plurality of supporting shafts, the supporting shafts being located outside the flipping system, the supporting shafts surrounding each other to form a receiving space, and the flipping system being installed in the receiving space.

12. The coating machine according to claim 11, characterized in that The mounting frame also includes an intermediate layer, and the coating machine further includes a second thickness measuring mechanism, which is installed on the intermediate layer and located below the flipping system. The coiled material after passing through the flipping system can be guided to the second thickness measuring mechanism, and the second thickness measuring mechanism is used to measure the thickness of the substrate after the coating is applied to the first surface. After measurement by the second thickness measuring mechanism, the coiled material is guided to the second coating mechanism for a second coating.

13. The coating machine according to claim 12, characterized in that The coating machine further includes a third thickness measuring mechanism, which is arranged on the bottom layer and below the second thickness measuring mechanism. The third thickness measuring mechanism is used to measure the thickness of the coiled material after being coated by the second coating mechanism.

14. The coating machine according to claim 13, characterized in that The bottom of the first coating mechanism is provided with a first movable channel, and the coiled material after being dried in the first oven can pass through the first movable channel and enter the turning system; A second movable channel is provided below the second coating mechanism, and the coiled material after being dried in the second oven can pass through the second movable channel to the winding support.

15. The coating machine according to claim 2, characterized in that A first drying component is provided in the first oven, and the first drying component can blow air toward both the top wall and the bottom wall of the first oven; A second drying component is provided in the second oven, and the second drying component can blow air toward both the top wall and the bottom wall of the second oven; A raw material roll is placed on the winding support. The coiled material in the raw material roll is coated on the second surface by the second coating mechanism and then enters the second drying oven. During the process of moving from the first end to the second end, the coiled material is located between the second drying assembly and the bottom wall of the second drying oven; during the process of moving from the second end to the first end, the coiled material is located between the second drying assembly and the top wall of the second drying oven. After the coil is dried in the second oven and leaves the first end, it can be guided to the first coating mechanism, coated on the first surface, and then enter the first oven. During the movement of the coil from the first end to the second end, the coil is located between the first drying component and the bottom wall of the first oven; during the movement from the second end to the first end, the coil is located between the first drying component and the top wall of the first oven.

Images