Coating device

Abstract

The utility model discloses a coating device, which comprises a back roller assembly, a back roller assembly and a back roller assembly, the back roller assembly comprises a coating roller and two groups of first bearing structures, the two groups of first bearing structures are symmetrically arranged at the two ends of the coating roller, and the two ends of the coating roller are respectively and rotatably connected with the two groups of first bearing structures; the rotating assembly comprises a frame body, a second bearing structure and a driving assembly, the frame body comprises two swing arms which are arranged in the length direction of the coating roller in a spaced mode, and the two swing arms are connected through a first connecting plate; each swing arm is rotationally connected with one first bearing structure through a second bearing structure, and the rotating axis of the swing arm coincides with the rotating axis of the coating roller; the adjusting end of the driving assembly is in driving connection with the frame body and used for driving the frame body to rotate. And the die head is connected with the first connecting plate and is arranged at a preset interval with the coating roller. The technical problems that the angle between a coating lip and a coating roller is usually 0 degree, and slurry with low viscosity is difficult to form a meniscus between the coating lip and the coating roller, so that the slurry is not uniformly coated are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a coating machine technical field, concretely relates to a coating device. BACKGROUND

[0002] In the related art, the coating die head and the coating roller in the coating device are usually fixedly arranged on the coating machine, the base material on the coating roller is coated through the coating lip of the coating die head, and the meniscus of the slurry between the coating lip and the coating roller is formed under the influence of gravity to improve the uniformity of coating, however, the angle between the coating lip of the coating die head and the coating roller is usually fixed as horizontal 0 degree, and it is difficult for the slurry with low viscosity to form the meniscus between the coating lip and the coating roller, so that the slurry is not uniformly coated, and the coating quality is affected. SUMMARY

[0003] The utility model provides a coating device, solved the coating die head's coating lip and the coating roller between the angle of existing coating device usually fixed as horizontal 0 degree, and it is difficult for the slurry with low viscosity to form the meniscus between the coating lip and the coating roller, so that the slurry is not uniformly coated, and the coating quality is affected technical problem.

[0004] Therefore, the utility model provides a coating device, which comprises:

[0005] The back roller assembly comprises a coating roller and two groups of first bearing structures, the two groups of first bearing structures are symmetrically arranged at two ends of the coating roller, and the two ends of the coating roller are rotatably connected with the two groups of first bearing structures respectively;

[0006] The rotating assembly comprises a frame, a second bearing structure and a driving assembly, the frame comprises two swing arms which are spaced apart along the length direction of the coating roller, and the two swing arms are connected by a first connecting plate; each swing arm is rotatably connected with a first bearing structure through the second bearing structure, and the rotation axis of the swing arm coincides with the rotation axis of the coating roller; the adjusting end of the driving assembly is drivingly connected with the frame or the second bearing structure, for driving the frame to rotate;

[0007] The die head is connected with the first connecting plate and arranged at a preset distance from the coating roller, for rotating with the frame to adjust the horizontal angle between the die head and the coating roller.

[0008] Optionally, the first bearing structure comprises a roller seat, a first bearing, a first baffle and an oil seal mounting plate; the swing arm is rotatably connected with the roller seat; the first bearing is embedded in the roller seat; the coating roller is rotatably connected with the first bearing through a rotating shaft; the first baffle and the oil seal mounting plate are arranged on the two sides of the roller seat respectively, and abut against the outer ring of the first bearing respectively.

[0009] Optionally, the first bearing structure further comprises a spacer sleeve and a first nut; the spacer sleeve is sleeved on the rotating shaft and abuts against the side of the inner ring of the first bearing away from the coating roller; the first nut is threadedly sleeved on the rotating shaft and abuts against the side of the spacer sleeve away from the first bearing.

[0010] Optionally, the second bearing structure comprises a support shaft, a second bearing and a second baffle; the swing arm is provided with a through hole coaxial with the coating roller; the second bearing is embedded in the through hole; one end of the support shaft is connected with the first bearing structure and the other end is embedded in the second bearing; the second baffle is arranged on the side of the swing arm away from the coating roller and abuts against the outer ring of the second bearing; the adjusting end of the driving assembly is connected with the second baffle.

[0011] Optionally, the second bearing structure further comprises a second nut, which is threadedly sleeved on the support shaft and abuts against the side of the inner ring of the second bearing away from the coating roller.

[0012] Optionally, it further comprises a first limiting block; the swing arm is provided with a limiting groove corresponding to the first bearing structure; the first bearing structure is provided with a plurality of first threaded holes around the axis of the coating roller; the first limiting block is screw-connected with the first threaded hole and is adapted to be embedded in the limiting groove;

[0013] And / or, the swing arm is provided with at least two symmetrical second limiting blocks; the second limiting blocks extend by a preset length towards the first bearing structure; the first bearing structure is provided with a plurality of second threaded hole assemblies around the axis of the coating roller, and one of the second threaded hole assemblies is detachably connected with a third limiting block; the third limiting block is located on the rotation path of the second limiting block and is used for limiting the second limiting block by abutting against the second limiting block;

[0014] And / or, the back roller assembly further comprises a first speed reducer and a first driving member; the first speed reducer is arranged on the first bearing structure away from the driving assembly; the output end of the first speed reducer is drivingly connected with the coating roller; the output end of the first driving member is drivingly connected with the input end of the first speed reducer.

[0015] Optionally, it further comprises a moving assembly, the moving assembly comprising two air cylinders, the cylinder shafts of the two air cylinders being respectively connected with the two ends of the die head through connecting members for driving the die head to move towards or away from the coating roller; the first connecting plate is provided with a first linear guide rail corresponding to each connecting member; the connecting member is slidingly connected with the first linear guide rail.

[0016] Optionally, at least one of the connecting pieces is provided with a limiting piece; the limiting piece corresponds to the position of the first bearing structure, and is used for limiting the first bearing structure.

[0017] Optionally, the driving assembly comprises:

[0018] A second speed reducer is fixedly arranged with an external device through a mounting plate.

[0019] A cover plate is arranged in one end of the second speed reducer and connected with the output end of the second speed reducer in the other end.

[0020] A rotating shaft sleeve is connected with the swing arm in one end and connected with the cover plate in the other end.

[0021] A second driving piece is arranged on the second speed reducer and connected with the input end of the second speed reducer.

[0022] Optionally, the cleaning assembly comprises a cleaning bottom plate, a scraper structure, a third driving piece and a fourth driving piece, the cleaning bottom plate is connected with the two swing arms in two ends respectively, the cleaning bottom plate is provided with a second linear guide rail along the length direction of the die head, the third driving piece is connected with the second linear guide rail through a sliding block, the fourth driving piece is arranged on the cleaning bottom plate and used for driving the third driving piece to move along the second linear guide rail, the scraper structure is connected with the output end of the third driving piece and driven by the third driving piece to move towards or away from the die head to clean the die head.

[0023] The utility model technical scheme has the following advantages:

[0024] 1. In the utility model, the rotating assembly is arranged, the frame body is rotatably arranged with the first bearing structure, the frame body is driven by the driving assembly to drive the die head to rotate around the coating roller, the horizontal angle between the die head and the coating roller is adjusted, the slurry between the die head and the coating roller forms a meniscus, the slurry is uniformly coated, and the coating quality is improved.

[0025] 2. In the utility model, the coating roller is rotatably arranged with the first bearing structure, the frame body is rotatably connected with the first bearing structure with the second bearing structure, and the rotation is smooth and stable.

[0026] 3. In the utility model, the frame body is connected with the two swing arms and the first connecting plate, sufficient space is reserved for arranging the die head, the back roller assembly and other parts, the connection strength is guaranteed, and the space utilization is improved. DRAWINGS

[0027] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings required to be used in the description of the specific embodiments or the prior art will be briefly introduced as follows. Obviously, the drawings described in the following are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0028] Figure 1 The structure schematic view of the coating device provided by the present application at a first perspective view;

[0029] Figure 2 The structure schematic view of the coating device provided by the present application at a second perspective view;

[0030] Figure 3 The structure schematic view of the coating device provided by the present application at a third perspective view;

[0031] Figure 4 The structure schematic view of the coating device provided by the present application at a fourth perspective view;

[0032] Figure 5 The structure schematic view of the coating device provided by the present application at a fourth perspective view; Figure 4 The sectional view of the coating device provided by the present application at A-A;

[0033] Figure 6 The structure schematic view of the back roller assembly provided by the present application;

[0034] Figure 7 The structure exploded view of the back roller assembly provided by the present application;

[0035] Figure 8 The structure schematic view of the frame body and the driving assembly provided by the present application;

[0036] Figure 9 The exploded view of the driving assembly provided by the present application;

[0037] Figure 10 The structure schematic view of the frame body provided by the present application;

[0038] Figure 11 The structure schematic view of the frame body and the cleaning assembly provided by the present application at a fifth perspective view;

[0039] Figure 12 The structure schematic view of the frame body and the cleaning assembly provided by the present application at a sixth perspective view;

[0040] Figure 13 The structure schematic view of the cleaning assembly provided by the present application;

[0041] Figure 14The utility model provides a slurry forms meniscus schematic diagram.

[0042] Mark explanation:

[0043] 1, coating roller; 2, swing arm; 3, first connecting plate; 4, die; 5, roller seat; 6, first bearing; 7, first baffle; 8, oil seal mounting plate; 9, spacer; 10, first nut; 11, support shaft; 12, second bearing; 13, second baffle; 14, perforation; 15, second nut; 16, first limit block; 17, limit groove; 18, first threaded hole; 19, second limit block; 20, slurry; 21, first speed reducer; 22, first driving part; 23, air cylinder; 24, connecting piece; 25, first linear guide rail; 26, limiting piece; 27, second speed reducer; 28, mounting plate; 29, cover plate; 30, rotating shaft sleeve; 31, second driving part; 32, cleaning bottom plate; 33, third driving part; 34, second linear guide rail; 35, driving motor; 36, synchronous wheel; 37, synchronous idler; 38, synchronous belt; 39, sliding block; 40, base; 41, cutter head scraping piece; 42, receiving box; 43, second connecting plate. DETAILED DESCRIPTION

[0044] The technical scheme of the utility model will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are some embodiments of the utility model, not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0045] In the description of the utility model, it should be explained that the orientation or position relation indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relation shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0046] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0047] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as there is no conflict.

[0048] Embodiment 1

[0049] Please refer to Figures 1 to 14 The present embodiment provides a coating device, comprising: a back roller assembly comprising a coating roller 1 and two sets of first bearing structures, the two sets of first bearing structures are symmetrically arranged at both ends of the coating roller 1, and the two ends of the coating roller 1 are rotatably connected with the two sets of first bearing structures respectively; a rotating assembly comprising a frame, a second bearing structure and a driving assembly, the frame comprises two swing arms 2 arranged at intervals along the length direction of the coating roller 1, and the two swing arms 2 are connected by a first connecting plate 3; each swing arm 2 is rotatably connected with a first bearing structure through a second bearing structure, and the rotation axis of the swing arm 2 coincides with the rotation axis of the coating roller 1; the adjusting end of the driving assembly is drivingly connected with the frame or the second bearing structure, for driving the frame to rotate; a die head 4 is connected with the first connecting plate 3 and arranged at a preset distance from the coating roller 1, for rotating with the frame to adjust the horizontal angle between the die head 4 and the coating roller 1.

[0050] It should be noted that the first bearing structure and the driving assembly are fixedly arranged with external equipment, for example, fixed on a coating machine, so as to facilitate the rotation of the coating roller 1 and the frame; the coating roller 1 is parallel to the die head 4.

[0051] In the present embodiment, the coating roller 1 is rotatably arranged through the first bearing structure, and each swing arm 2 is rotatably connected with the first bearing structure through the second bearing structure; when it is necessary to adjust the horizontal angle between the die head 4 and the coating roller 1, the frame is driven to rotate around the first bearing structure through the adjusting end of the driving assembly, and the die head 4 is driven to rotate around the coating roller 1, the horizontal angle between the die head 4 and the coating roller 1 can be adjusted to a suitable angle according to the viscosity of the slurry 20, the die head 4 performs coating on the substrate on the coating roller 1, so that the slurry 20 between the coating lip of the die head 4 and the coating roller 1 forms a meniscus, ensuring uniform coating of the slurry 20 and improving the coating quality; through the arrangement of the first bearing structure and the second bearing structure, the rotation fluency and stability of the coating roller 1 and the swing arm 2 during rotation are improved, the adjustment accuracy is ensured, and the frame adopts the structure form of two swing arms 2 and the first connecting plate 3 connection, which can reserve enough space to arrange the die head 4, the back roller assembly and other parts, ensuring the connection strength while improving the space utilization.

[0052] Embodiment 2

[0053] As a further improvement on embodiment 1, as Figures 1 to 7As shown in the figure, the first bearing structure comprises a roller seat 5, a first bearing 6, a first baffle 7 and an oil seal mounting plate 8; the swing arm 2 is rotationally connected with the roller seat 5; the first bearing 6 is embedded in the roller seat 5; the coating roller 1 is rotationally connected with the first bearing 6 through a rotating shaft; the first baffle 7 and the oil seal mounting plate 8 are respectively arranged on both sides of the roller seat 5 and abut against the outer ring of the first bearing 6.

[0054] It should be noted that the rotating shaft is arranged through the inner ring of the first bearing 6; the rotating shaft, the first bearing 6 and the coating roller 1 are coaxially arranged.

[0055] In this embodiment, the roller seat 5 can be used to be fixedly arranged with external equipment, the first bearing 6 is arranged in the roller seat 5, the end of the coating roller 1 is connected with the first bearing 6 through a rotating shaft to support the rotation of the coating roller 1, then the first baffle 7 and the oil seal mounting plate 8 are arranged on both sides of the roller seat 5 to abut against the outer ring of the first bearing 6, which prevents the outer ring of the first bearing 6 from rotating and limits the first bearing 6 in the axial direction to avoid deviation and disengagement during work, thereby improving stability and service life.

[0056] Specifically, the first baffle 7 is located on the side of the roller seat 5 away from the coating roller 1.

[0057] In an embodiment, as shown in Figure 5 , Figure 7 and , the first bearing structure further comprises a spacer sleeve 9 and a first nut 10; the spacer sleeve 9 is sleeved on the rotating shaft and abuts against the side of the inner ring of the first bearing 6 away from the coating roller 1; the first nut 10 is threadedly sleeved on the rotating shaft and abuts against the side of the spacer sleeve 9 away from the first bearing 6.

[0058] In this embodiment, the first nut 10 and the spacer sleeve 9 cooperate to abut against the inner ring of the first bearing 6, so that the inner ring of the first bearing 6 is further fixed with the coating roller 1 and is limited in the axial direction to avoid falling off, thereby ensuring that the inner ring of the first bearing 6 rotates with the coating roller 1 and improving stability.

[0059] Specifically, a limiting protrusion is arranged on the rotating shaft on the side of the inner ring of the first bearing 6 close to the coating roller 1, which clamps the inner ring of the first bearing 6 through the limiting protrusion cooperating with the spacer sleeve 9 to improve stability.

[0060] Specifically, the first bearing 6 is an angular contact bearing, which improves stability.

[0061] Figure 5 , Figure 8 and Figure 9As shown, the second bearing structure comprises a support shaft 11, a second bearing 12 and a second baffle 13, and the swing arm 2 is coaxial with the coating roller 1 and is provided with a through hole 14; the second bearing 12 is embedded in the through hole 14; one end of the support shaft 11 is connected with the first bearing structure, and the other end is embedded in the second bearing 12; the second baffle 13 is arranged on the side of the swing arm 2 away from the coating roller 1, and the second baffle 13 abuts against the outer ring of the second bearing 12; and the adjusting end of the driving assembly is connected with the second baffle 13.

[0062] It should be noted that the through hole 14, the support shaft 11 and the second bearing 12 are coaxial with the coating roller 1.

[0063] In this embodiment, one end of the support shaft 11 is connected with the first bearing structure for fixation, so as to provide a rotation support point for the rotation of the swing arm 2, and the second bearing 12 is embedded in the through hole 14 of the swing arm 2 and rotates in cooperation with the support shaft 11, so as to improve the stability and smoothness of rotation. In addition, the second baffle 13 is limited by the outer ring of the second bearing 12 on the side of the swing arm 2 away from the coating roller 1, so as to avoid the rotation and falling off of the outer ring of the second bearing 12 and ensure the stable rotation of the swing arm 2. In addition, the adjusting end of the driving assembly is connected with the second baffle 13, so as to drive the second baffle 13 and the swing arm 2 to rotate, so as to save space and facilitate the disassembly.

[0064] Specifically, the support shaft 11 is connected with the roller seat 5, so as to ensure the stability.

[0065] Specifically, as shown in the drawings, Figure 5 the side wall of one end of the through hole 14 close to the coating roller 1 is provided with a first limiting flange, the outer ring of the second bearing 12 abuts against the first limiting flange, and the second baffle 13 abuts against the outer ring of the second bearing 12 on both sides, so as to improve the stability.

[0066] Specifically, the swing arm 2 is located on the side of the roller seat 5 away from the coating roller 1, so as to facilitate the connection of the swing arm 2.

[0067] In an embodiment, as shown in the drawings, Figure 5 and Figure 9 the second bearing structure further comprises a second nut 15, the second nut 15 is threadedly sleeved on the support shaft 11 and abuts against the side of the inner ring of the second bearing 12 away from the coating roller 1.

[0068] In this embodiment, after the support shaft 11 is embedded in the inner ring of the second bearing 12, the second nut 15 is threadedly connected on the support shaft 11 and abuts against the inner ring of the second bearing 12, so as to limit the inner ring of the second bearing 12 and fix the inner ring of the second bearing 12 on the support shaft 11, so as to ensure the stability.

[0069] Specifically, the second limiting flange is arranged on the support shaft 11, and abuts against one side of the inner ring of the second bearing 12 close to the coating roller 1, and cooperates with the second nut 15 to fix the inner ring of the second bearing 12, thereby improving stability.

[0070] Specifically, the second bearing 12 is an angular contact bearing, thereby improving stability.

[0071] In an embodiment, as shown in Figure 4 and Figure 8 Further comprising a first limiting block 16; the periphery of the swing arm 2 is provided with a limiting groove 17 corresponding to the first bearing structure, and a plurality of first threaded holes 18 are arranged on the first bearing structure around the axis of the coating roller 1; the first limiting block 16 is screw-connected with the first threaded holes 18 and is adapted to be embedded in the limiting groove 17.

[0072] In the embodiment, when the driving assembly drives the swing arm 2 to rotate to a proper position, the first limiting block 16 is screw-connected with the first threaded hole 18 at the corresponding position according to the position of the limiting groove 17 at this time, and the first limiting block 16 is embedded in the limiting groove 17, so that the swing arm 2 is fixed with the first bearing structure, thereby improving stability, reducing the acting force of the swing arm 2 on the driving assembly, improving service life, facilitating use, and being high in flexibility and adaptability to different adjustment positions of the swing arm 2.

[0073] Specifically, the first limiting block 16 is screw-connected with the limiting groove 17, thereby further improving stability.

[0074] Specifically, the first threaded holes 18 are arranged on one side of the roller seat 5 close to the swing arm 2, thereby facilitating connection.

[0075] In an embodiment, as shown in Figures 2 to 4 The swing arm 2 is provided with at least two symmetrical second limiting blocks 19; the second limiting blocks 19 extend towards the first bearing structure by a preset length; a plurality of second threaded hole assemblies are arranged on the first bearing structure around the axis of the coating roller 1, and one of the second threaded hole assemblies is detachably connected with a third limiting block; the third limiting block is located on the rotating path of the second limiting block 19 and is used for limiting the second limiting block 19.

[0076] In this embodiment, by providing at least two second limiting blocks 19 on the swing arm 2, during installation, the third limiting block can be connected to one set of second threaded hole assemblies, and the swing arm 2 is rotated to abut the third limiting block against the second limiting block 19, so as to stabilize the frame body, facilitate the installation of other components, and after the installation is completed, when it is necessary to adjust the angle of the die head 4 and the coating roller 1, the third limiting block can be first disassembled to avoid affecting the rotation of the swing arm 2, and when the driving assembly adjusts the die head 4 to a suitable angle, the third limiting block can be connected below or behind the second limiting block 19 according to the position of the second limiting block 19, and abuts against the second limiting block 19 or maintains a preset angle with the second limiting block 19, and there is a certain distance between the two, so as to prevent the harm caused by the uncontrolled rotation of the frame body after the failure of the driving assembly, that is, the maximum rotation path of the frame body after the failure of the driving assembly is the distance between the second limiting block 19 and the third limiting block, and the second limiting block 19 can abut against the third limiting block to limit the position, thereby improving the safety.

[0077] Specifically, a plurality of second threaded hole assemblies are arranged on the roller seat 5, and the third limiting block can be connected to one of the second threaded hole assemblies by a screw to be fixed on the roller seat 5 for limiting, and the third limiting block can be adjusted according to actual conditions to facilitate installation and disassembly.

[0078] Specifically, the swing arm 2 is provided with a connecting groove corresponding to the second limiting block 19, and the second limiting block 19 is adapted to be embedded in the connecting groove and is screw-connected with the connecting groove, thereby further improving the stability.

[0079] In an embodiment, as shown in Figure 1 、 Figure 2 and Figures 5 to 7 , the back roller assembly further comprises a first speed reducer 21 and a first driving member 22; the first speed reducer 21 is arranged on the first bearing structure away from the driving assembly, and the output end of the first speed reducer 21 is drivingly connected with the coating roller 1; the output end of the first driving member 22 is drivingly connected with the input end of the first speed reducer 21.

[0080] In this embodiment, the first driving member 22 drives the first speed reducer 21 to drive the coating roller 1 to rotate, thereby driving the substrate auxiliary coating.

[0081] Specifically, the first driving member 22 can adopt a servo motor, and the output end of the first speed reducer 21 is connected with the coating roller 1 through a shaft coupling, thereby improving the stability of transmission.

[0082] In an embodiment, as shown in Figure 1 、 Figure 2 and Figure 10As shown, the moving assembly comprises two air cylinders 23, the cylinder shafts of the two air cylinders 23 are connected with two ends of the die head 4 through connecting pieces 24, for driving the die head 4 to move towards or away from the coating roller 1; a first linear guide rail 25 is arranged on the first connecting plate 3 corresponding to each connecting piece 24, and the connecting piece 24 is in sliding connection with the first linear guide rail 25.

[0083] In the embodiment, two air cylinders 23 are arranged, and the two air cylinders 23 are connected with the die head 4 through connecting pieces 24, so that the connecting strength is improved, and the die head 4 can be adjusted to move towards or away from the coating roller 1 according to actual needs, so that the distance between the die head 4 and the coating roller 1 is adjusted.

[0084] In an embodiment, as shown in Figure 1 , Figure 2 and Figure 10 , at least one connecting piece 24 is provided with a limiting piece 26; the limiting piece 26 corresponds to the position of the first bearing structure, and is used for abutting against the first bearing structure for limiting.

[0085] In the embodiment, when the moving assembly drives the die head 4 to move towards the coating roller 1, the limiting piece 26 can abut against the first bearing structure first, so as to limit the minimum distance between the die head 4 and the coating roller 1, and the minimum distance can be adjusted by selecting limiting pieces 26 with different lengths according to actual conditions, so as to avoid the die head 4 abutting against the coating roller 1 and causing damage.

[0086] Specifically, the limiting piece 26 is arranged on each of the two connecting pieces 24, so as to further improve the stability.

[0087] Specifically, the two connecting pieces 24 are connected through a second connecting plate 43, so as to improve the stability.

[0088] Specifically, a sliding groove is arranged on the swing arm 2 corresponding to the moving direction of the connecting piece 24 along the die head 4, so as to provide space for arranging the connecting piece 24 and avoid affecting the movement of the connecting piece 24.

[0089] In an embodiment, as shown in Figure 9 , the driving assembly comprises: a second speed reducer 27, which is fixedly arranged with an external device through a mounting plate 28; a cover plate 29, one end of which is arranged in the second speed reducer 27, and the other end is connected with the output end of the second speed reducer 27; a rotating shaft sleeve 30, one end of which is connected with the swing arm 2, and the other end is drivingly connected with the cover plate 29; and a second driving piece 31, which is arranged on the second speed reducer 27 and connected with the input end of the second speed reducer 27.

[0090] In the embodiment, the second speed reducer 27 is fixedly arranged with the external device through the mounting plate 28, for example, can be fixed on the coating machine, improve the stability, when the horizontal angle between the die head 4 and the coating roller 1 needs to be adjusted, the second speed reducer 27 can be driven to work through the second driving part 31, drive the cover plate 29 to rotate, the cover plate 29 drives the rotating shaft sleeve 30 to rotate, and then drives the frame body to rotate around the coating roller 1, so that the horizontal angle between the die head 4 and the coating roller 1 is adjusted, and the stability is improved.

[0091] Specifically, the second driving part 31 is a hand wheel, and the second speed reducer 27 is driven to work through the hand wheel.

[0092] Specifically, the rotating shaft sleeve 30 is connected to the second baffle 13, so as to save space and facilitate disassembly together.

[0093] In an embodiment, as shown in Figure 11 and Figure 13 The cleaning assembly further includes a cleaning bottom plate 32, a scraper structure, a third driving part 33 and a fourth driving part. The cleaning bottom plate 32 is connected to the two swing arms 2 at both ends respectively, and a second linear guide rail 34 is arranged on the cleaning bottom plate 32 along the length direction of the die head 4. The third driving part 33 is slidably connected to the second linear guide rail 34 through a sliding block 39. The fourth driving part is arranged on the cleaning bottom plate 32 and is used to drive the third driving part 33 to move along the second linear guide rail 34. The scraper structure is drivingly connected to the output end of the third driving part 33 and is used to be driven by the third driving part 33 to move towards or away from the die head 4, so as to clean the die head 4.

[0094] It should be noted that the cleaning bottom plate 32 is detachably connected to the swing arm 2, which is convenient for installation and disassembly. The scraper structure is matched with the coating lip of the die head 4.

[0095] In the embodiment, after the die head 4 finishes coating, the cleaning assembly can be arranged, the scraper structure is driven by the third driving part 33 to approach and abut the coating lip of the die head 4, and then the scraper structure is driven by the fourth driving part to move along the length direction of the die head 4, so as to clean the coating lip of the die head 4. The adjustment is flexible and convenient.

[0096] Specifically, the cleaning bottom plate 32 is bolted to the swing arm 2. Since the scraper structure, the third driving part 33 and the fourth driving part are all arranged on the cleaning bottom plate 32, when not in use, the cleaning assembly can be removed as a whole by disassembling the cleaning bottom plate 32, so as to save operation space. When in use, the cleaning assembly can be simply and conveniently installed again.

[0097] Specifically, the third driving part 33 is a pneumatic sliding table. The third driving part 33 adopts a pneumatic sliding table, and the adjustment end of the pneumatic sliding table is connected to the scraper structure, so as to drive the scraper structure to move towards or away from the die head 4.

[0098] Specifically, the fourth driving member comprises a driving motor 35, a synchronous wheel 36, a synchronous idler wheel 37 and a synchronous belt 38, the synchronous wheel 36 and the synchronous idler wheel 37 are arranged on the cleaning bottom plate 32 along the length direction of the die head 4; the synchronous wheel 36 is drivingly connected with the synchronous idler wheel 37 through the synchronous belt 38; the driving motor 35 is drivingly connected with the synchronous wheel 36 for driving the synchronous wheel 36 to rotate; the synchronous belt 38 is connected with the sliding block 39. When it is needed to drive the scraper structure to move along the length direction of the die head 4 to clean the coating lip, the driving motor 35 drives the synchronous wheel 36 to rotate, and then drives the synchronous belt 38 to rotate, so that the synchronous belt 38 drives the sliding block 39 to move on the second linear guide rail 34, and the movement of the third driving member 33 and the scraper structure is realized.

[0099] Specifically, the scraper structure comprises a base 40, a cutter head scraping piece 41 and a receiving box 42; the base 40 is connected with the output end of the third driving member 33; the cutter head scraping piece 41 is arranged on the base 40 and is matched with the coating lip of the die head 4; the receiving box 42 is arranged on the base 40 and is located below the cutter head scraping piece 41. During cleaning, the cutter head scraping piece 41 moves in close contact with the coating lip, and the slurry 20 cleaned by the cutter head scraping piece 41 falls into the receiving box 42.

[0100] Specifically, the two ends of the receiving box 42 are rotatably connected with the base 40 through connecting arms, so that the center of gravity of the receiving box 42 is downward, and the receiving box 42 can always be kept below the cutter head scraping piece 41 under the action of gravity, so as to facilitate receiving.

[0101] Specifically, the frame body further comprises a third connecting plate, the two ends of the third connecting plate are respectively connected with the two swing arms 2, and the side of the third connecting plate is connected with the first connecting plate 3, so as to further improve the connection strength.

[0102] The specific working principle of the coating device provided by the embodiment is as follows: when the angle needs to be adjusted, first, the first limiting block 16 is disassembled, and at the same time, the second driving member 31 drives the second speed reducer 27 to drive the swing arm 2 to rotate around the support shaft 11, thereby driving the die head 4 to rotate around the coating roller 1, so as to adjust the horizontal angle between the die head 4 and the coating roller 1; after the horizontal angle between the die head 4 and the coating roller 1 is adjusted to a suitable angle, first, according to the position of the swing arm 2, the first limiting block 16 is connected to the roller seat 5, and the first limiting block 16 is embedded in the limiting groove 17 for stabilization; then, the third limiting block is connected to the rear or the lower side of the second limiting block 19 at a preset interval, which plays a limiting protection role; at the same time, the distance between the die head 4 and the coating roller 1 can be adjusted according to actual needs by the moving assembly, so as to complete the position adjustment; during work, the first driving member 22 drives the first speed reducer 21, thereby driving the coating roller 1 to rotate, so as to realize coating of the substrate; after coating is completed, the coating lip of the die head 4 can be cleaned by the cleaning assembly; the coating device provided by the embodiment is provided with the first bearing structure and the second bearing structure, which facilitates the adjustment of the horizontal angle between the die head 4 and the coating roller 1, so as to adapt to slurries 20 of different viscosities, so that the slurry 20 between the coating lip of the die head 4 and the coating roller 1 forms a meniscus, ensures uniform smearing of the slurry 20, improves the coating quality, improves the adjustment precision and stability, ensures the overall service life, and solves the technical problem that the angle between the coating lip of the coating die and the coating roller 1 in the existing coating device is usually fixed at 0 degrees horizontally, and it is difficult for a slurry with low viscosity to form a meniscus between the coating lip and the coating roller 1, which leads to uneven smearing of the slurry and affects the coating quality.

[0103] Obviously, the above embodiments are merely examples for clear illustration, but not limitation of the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A coating device characterized by comprising: The application relates to a back roller assembly, which comprises a coating roller (1) and two groups of first bearing structures symmetrically arranged at two ends of the coating roller (1) and rotationally connected with the two ends of the coating roller (1) respectively. The back roller assembly further comprises a rotating assembly, which comprises a frame body, a second bearing structure and a driving assembly. The frame body comprises two swing arms (2) arranged at intervals along the length direction of the coating roller (1) and connected through a first connecting plate (3). Each swing arm (2) is rotationally connected with a first bearing structure through the second bearing structure, and the rotation axis of the swing arm (2) coincides with the rotation axis of the coating roller (1).

2. The coating apparatus according to claim 1, wherein The driving assembly is drivingly connected with the frame body or the second bearing structure, and is used for driving the frame body to rotate.

3. The coating apparatus according to claim 2, wherein The first bearing structure comprises a roller seat (5), a first bearing (6), a first baffle (7) and an oil seal mounting plate (8).

4. The coating apparatus according to claim 1, wherein The swing arm (2) is rotationally connected with the roller seat (5).

5. The coating apparatus according to claim 4, wherein The first bearing (6) is embedded in the roller seat (5). The coating roller (1) is rotationally connected with the first bearing (6) through a rotating shaft. The first baffle (7) and the oil seal mounting plate (8) are arranged at two sides of the roller seat (5) respectively and abut against the outer rings of the first bearing (6) respectively. The first bearing structure further comprises a spacer sleeve (9) and a first nut (10). The spacer sleeve (9) is sleeved on the rotating shaft and abuts against the side, away from the coating roller (1), of the inner ring of the first bearing (6). The first nut (10) is threadedly sleeved on the rotating shaft and abuts against the side, away from the first bearing (6), of the spacer sleeve (9). The second bearing structure comprises a supporting shaft (11), a second bearing (12) and a second baffle (13). The swing arm (2) is coaxially provided with a through hole (14) with the coating roller (1). The second bearing (12) is embedded in the through hole (14). One end of the supporting shaft (11) is connected with the first bearing structure, and the other end is embedded in the second bearing (12). The second baffle (13) is arranged at the side, away from the coating roller (1), of the swing arm (2) and abuts against the outer ring of the second bearing (12). The second nut (15) is threadedly sleeved on the supporting shaft (11) and abuts against the side, away from the coating roller (1), of the inner ring of the second bearing (12).

6. The coating apparatus according to any one of claims 1 to 5, characterized in that Further comprising a first limiting block (16); a limiting groove (17) is arranged on the circumference of the swing arm (2) corresponding to the first bearing structure, a plurality of first threaded holes (18) are arranged on the first bearing structure around the shaft of the coating roller (1); the first limiting block (16) is screw-connected with the first threaded hole (18) and is adapted to be embedded in the limiting groove (17); And / or, the swing arm (2) is provided with at least two symmetrical second limiting blocks (19); the second limiting block (19) extends by a preset length towards the first bearing structure; a plurality of second threaded hole assemblies are arranged on the first bearing structure around the shaft of the coating roller (1), one of the second threaded hole assemblies is detachably connected with a third limiting block; the third limiting block is located on the rotation path of the second limiting block (19) and is used for limiting the second limiting block (19); And / or, the back roller assembly further comprises a first speed reducer (21) and a first driving member (22); the first speed reducer (21) is arranged on the first bearing structure away from the driving assembly, the output end of the first speed reducer (21) is drivingly connected with the coating roller (1); the output end of the first driving member (22) is drivingly connected with the input end of the first speed reducer (21).

7. The coating apparatus according to any one of claims 1 to 5, wherein Further comprising a moving assembly, the moving assembly comprises two air cylinders (23), the cylinder shafts of the two air cylinders (23) are respectively connected with the two ends of the die head (4) through connecting members (24), which are used for driving the die head (4) to move towards or away from the coating roller (1); a first linear guide rail (25) is arranged on the first connecting plate (3) corresponding to each connecting member (24), and the connecting member (24) is slidingly connected with the first linear guide rail (25).

8. The coating apparatus according to claim 7, wherein At least one connecting member (24) is provided with a limiting member (26); the limiting member (26) corresponds to the position of the first bearing structure and is used for limiting the first bearing structure.

9. The coating apparatus of claim 1, wherein The driving assembly comprises: A second speed reducer (27) is fixedly arranged on an installation plate (28) and an external device; A cover plate (29) is arranged in one end of the second speed reducer (27) and the other end is connected with the output end of the second speed reducer (27); A rotating shaft sleeve (30) is connected with the swing arm (2) at one end and is drivingly connected with the cover plate (29) at the other end; A second driving member (31) is arranged on the second speed reducer (27) and is connected with the input end of the second speed reducer (27).

10. The coating apparatus of claim 1, wherein The cleaning assembly comprises a cleaning bottom plate (32), a scraper structure, a third driving member (33) and a fourth driving member, the cleaning bottom plate (32) is connected with the two swing arms (2) at both ends respectively, a second linear guide rail (34) is arranged on the cleaning bottom plate (32) along the length direction of the die head (4), the third driving member (33) is slidably connected with the second linear guide rail (34) through a sliding block (39), the fourth driving member is arranged on the cleaning bottom plate (32) and used for driving the third driving member (33) to move along the second linear guide rail (34), the scraper structure is drivingly connected with the output end of the third driving member (33) and used for being driven by the third driving member (33) to move towards the direction of approaching or moving away from the die head (4) so as to clean the die head (4).

Images