Sheet coating device
By designing a combined structure of a liquid collection tank and a coating roller, and using a cover plate and fasteners, the problem of uneven paint film thickness during the coating process of silicon steel sheets was solved, achieving uniform coating on the sheet surface and ease of operation.
Patent Information
- Application Number
- CN202511155786.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-18
- Publication Date
- 2025-11-28
AI Technical Summary
In existing technologies, uneven paint film thickness during the coating process of silicon steel sheets leads to inconsistent coating.
A sheet coating apparatus was designed, including a liquid collection tank and a coating roller that can move above or below the sheet. The design of the cover plate and fasteners ensures the uniformity of the coating thickness on the sheet surface, and the coating process is optimized by the limiting structure and the drain port.
It achieves uniform coating thickness on the sheet surface, reduces coating liquid waste, improves operational convenience and safety, and reduces equipment weight.
Smart Images
Figure CN121017019A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the field of coating equipment, and particularly relates to a sheet coating device. BACKGROUND
[0002] At present, a layer of insulating paint needs to be coated on a silicon steel sheet used by a generator for insulation treatment. The silicon steel sheet coated with the insulating paint is referred to as a painted sheet. At present, the painted sheet is mainly made by hooking the upper end of the painted sheet, then immersing it in the insulating paint or directly spraying the insulating paint on the surface of the painted sheet, and then hanging it on a horizontal rod to wait until the painted sheet does not drip paint, and then hanging it into an oven for drying operation. Although this operation process is simple, when the painted sheet is hung on the horizontal rod, the paint film on the surface of the painted sheet will flow downward under the action of its own gravity, and finally result in that the thickness of the paint film on the surface of the painted sheet gradually thickens from top to bottom, that is, the thickness of the paint film on the surface of the painted sheet is not consistent as a whole. SUMMARY
[0003] In order to solve the above technical problems, the purpose of the present application is to provide a sheet coating device which has a simple structure, is convenient to use, and can make the coating thickness on the surface of the sheet relatively uniform.
[0004] In order to achieve the above purpose, the technical scheme of the present application is as follows: a sheet coating device, comprising a liquid collecting tank and a coating roller, the liquid collecting tank is horizontally arranged along the front and back directions, the tank walls on the left and right sides of the liquid collecting tank are each provided with two slide holes which are horizontally arranged along the front and back directions and are distributed in an upper and lower interval, the front end of each slide hole is open, the two slide holes on the same side are respectively an upper slide hole and a lower slide hole, the inner tank walls on the left and right sides of the liquid collecting tank are stepped to form horizontal lifting surfaces, the sheet is horizontally placed in the liquid collecting tank, and the left and right sides thereof are respectively placed on the two lifting surfaces, the horizontal height of the lifting surface is between the upper slide hole and the lower slide hole, the coating roller is horizontally arranged in the liquid collecting tank along the left and right directions, and the two ends of the coating roller are coaxially provided with handle rods; When the coating roller is located below the sheet, the two handle rods penetrate through the two lower slide holes to extend out of the liquid collecting tank, the coating roller moves forward and backward under the action of external force to perform coating operation on the lower surface of the sheet; Or when the coating roller is located above the sheet, the two handle rods penetrate through the two upper slide holes to extend out of the liquid collecting tank, the coating roller moves forward and backward under the action of external force to perform coating operation on the lower surface of the sheet.
[0005] The beneficial effects of the above technical scheme are that the sheet can be placed flat in the liquid collecting tank, the coating roller can be moved above or below the sheet, and the upper surface or the lower surface of the sheet can be coated by the coating roller, so that the coating thickness on the surface of the sheet is uniform.
[0006] The technical scheme further comprises a cover plate horizontally supported on the upper end of the collecting tank, and two pressing strips are arranged on the lower end of the cover plate in the front-rear direction and are spaced apart in the left-right direction, and the two pressing strips are located above the two supporting surfaces respectively, and the pressing strips and the corresponding supporting surfaces are used to clamp the corresponding side of the sheet, and the pressing strips are provided with escape sliding holes horizontally arranged in the front-rear direction and horizontally aligned with the upper sliding holes, and the front ends of the escape sliding holes penetrate the front ends of the corresponding pressing strips, and when the coating roller is located above the sheet, each handle rod penetrates the escape sliding hole and the upper sliding hole on the corresponding side to extend out of the collecting tank.
[0007] The technical scheme has the beneficial effects that the cover plate is arranged on the upper end of the collecting tank to avoid splashing of the coating liquid, and the pressing strips on the lower end of the cover plate can press the sheet on the supporting surface, so that the sheet is prevented from being moved under the action of the coating roller during coating.
[0008] The technical scheme further comprises a plurality of fasteners, and the left and right sides of the cover plate are provided with a plurality of fasteners spaced apart in the front-rear direction, and the fasteners are used to detachably assemble the cover plate on the upper end of the collecting tank.
[0009] The technical scheme has the beneficial effects that the cover plate can be assembled on the upper end of the collecting tank by the fasteners, so that the cover plate is prevented from being moved, and the pressing effect of the sheet between the supporting surface and the pressing strip is better.
[0010] In the technical scheme, the fastener is U-shaped, and the two ends of the fastener are respectively a bolt portion, the left and right sides of the cover plate are recessed with a plurality of first pin holes arranged in the left-right direction and spaced apart in the front-rear direction, and the outer tank walls on the left and right sides of the collecting tank are recessed with a plurality of second pin holes arranged in the left-right direction and spaced apart in the front-rear direction, the plurality of first pin holes, the second pin holes and the fasteners on the same side are one-to-one corresponding, the first pin holes and the second pin holes corresponding to each other are vertically aligned, and the bolt portions at the two ends of each fastener are respectively inserted into the corresponding first pin hole and second pin hole to limit the cover plate on the upper end of the collecting tank.
[0011] The technical scheme has the beneficial effects that the fastener can prevent the cover plate from being moved up and down and moved forward and backward relative to the collecting tank.
[0012] In the technical scheme, the tank walls on the left and right sides of the collecting tank are increased in height to form a fence, and at least the upper sliding hole is located on the fence.
[0013] The technical scheme has the beneficial effects that the tank walls on the left and right sides of the collecting tank have sufficient space for arranging the sliding holes, and the heights of the front and rear tank walls of the collecting tank are reduced, so that the weight of the collecting tank is also reduced.
[0014] The liquid collecting tank further comprises two limiting strips, the two limiting strips correspond to the two enclosures one by one, the limiting strip is installed at the front end of the corresponding enclosure, the limiting strip and the front end of the corresponding enclosure have a transition gap for the movement of the handle rod, and the front end of the upper sliding hole and the lower sliding hole are communicated through the transition gap.
[0015] The beneficial effects of the above technical solution are that the upper sliding hole, the transition gap and the lower sliding hole on the same side can form a U-shaped slide, and the notch of the slide faces backward, so that the two handle rods at both ends of the coating roller can be conveniently transferred between the lower sliding hole and the upper sliding hole.
[0016] The front end of the enclosure is recessed with an insertion hole above the upper sliding hole, the front upper end of the left and right sides of the liquid collecting tank is recessed with a third pin hole in front of the corresponding enclosure, the rear upper end of the limiting strip is protruded with an insertion tooth matched with the insertion hole, the front end of the limiting strip is provided with a fourth pin hole penetrating upward and downward, when the insertion tooth is inserted into the corresponding insertion hole, the third pin hole is aligned with the corresponding fourth pin hole for the insertion of a pin, and the pin is used to assemble the limiting strip at the front end of the corresponding enclosure.
[0017] The beneficial effects of the above technical solution are that the limiting strip can be conveniently installed at the front end of the corresponding enclosure.
[0018] The bottom wall of the front lower end of the liquid collecting tank is recessed downward to form a deepening part, and the deepening part is located in front of the enclosure.
[0019] The beneficial effects of the above technical solution are that the storage amount of the coating liquid in the liquid collecting tank can be reduced, and the amount of the coating liquid can be saved.
[0020] The lower end of the liquid collecting tank is provided with a drainage port, and an opening and closing member is arranged at the drainage port.
[0021] The beneficial effects of the above technical solution are that the coating liquid in the liquid collecting tank can be recycled by opening the opening and closing member after coating.
[0022] The lower end of the liquid collecting tank is provided with a support frame.
[0023] The beneficial effects of the above technical solution are that the liquid collecting tank can be lifted by the support frame, so that it is more convenient for people to operate the coating roller. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 It is a front view of the sheet coating device according to the embodiment of the application. Figure 2 The sheet coating device of the embodiment of the present application is shown in the elevational view after the cover plate and the sheet are removed. Figure 3 The front view of the coating roller of the embodiment of the present application is shown. Figure 4 The plan view of the sheet coating device of the embodiment of the present application is shown. Figure 5 The sectional view of the embodiment of the present application is shown at A-A. Figure 4 The sectional view of the embodiment of the present application is shown at B-B. Figure 6 The elevational view of the cover plate of the embodiment of the present application is shown. Figure 4 The elevational view of the cover plate of the embodiment of the present application is shown. Figure 7 The partial sectional view of the enclosure, the cover plate, the sheet and the fastener of the embodiment of the present application is shown in the assembled condition. Figure 8 The elevational view of the fastener of the embodiment of the present application is shown. Figure 9 The elevational view of the sump of the embodiment of the present application is shown. Figure 10 The elevational view of the limiting strip of the embodiment of the present application is shown. Figure 11 The schematic view of the limiting strip of the embodiment of the present application is shown in the assembled condition on the sump. Figure 12 The schematic view of the bottom wall of the sump of the embodiment of the present application is shown. Figure 13 The schematic view of the bottom wall of the sump of the embodiment of the present application is shown.
[0025] In the figure: 1, sump; 11, sliding hole; 11a, upper sliding hole; 11b, lower sliding hole; 12, lifting surface; 13, second pin hole; 14, enclosure; 141, insertion hole; 15, limiting strip; 151, insertion tooth; 152, fourth pin hole; 16, third pin hole; 17, insertion pin; 18, transition gap; 19, deepened portion; 191, liquid discharge opening; 192, opening and closing member; 2, coating roller; 21, handle rod; 211, through portion; 22, brush hair; 3, cover plate; 31, pressing strip; 311, avoiding sliding hole; 32, first pin hole; 4, fastener; 41, insertion pin portion; 5, support frame; 6, sheet. DETAILED DESCRIPTION
[0026] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The embodiments of the present application are shown in the accompanying drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.
[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application.
[0028] It is to be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if a device described herein is turned over in use or operation, a relative preposition such as "below" can be oriented upward, rather than downward, and the like. Consequently, the exemplary term "below" can include both an orientation of above and below. The device can be otherwise oriented (for example, rotated 90 degrees or at other orientations) and the spatially relative terms used herein interpreted accordingly.
[0029] It is to be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if a device described herein is turned over in use or operation, a relative preposition such as "below" can be oriented upward, rather than downward, and the like. Consequently, the exemplary term "below" can include both an orientation of above and below. The device can be otherwise oriented (for example, rotated 90 degrees or at other orientations) and the spatially relative terms used herein interpreted accordingly.
[0030] It is to be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if a device described herein is turned over in use or operation, a relative preposition such as "below" can be oriented upward, rather than downward, and the like. Consequently, the exemplary term "below" can include both an orientation of above and below. The device can be otherwise oriented (for example, rotated 90 degrees or at other orientations) and the spatially relative terms used herein interpreted accordingly.
[0031] As Figure 2As shown, the embodiment provides a sheet coating device, which comprises a liquid collecting tank 1 and a coating roller 2. The liquid collecting tank 1 is horizontally arranged along the front-rear direction. The tank wall on the left and right sides of the liquid collecting tank 1 is provided with two slide holes 11 horizontally arranged along the front-rear direction and spaced apart in the up-down direction. The front end of each slide hole 11 is open. The two slide holes 11 on the same side are respectively an upper slide hole 11a and a lower slide hole 11b. The inner tank wall on the left and right sides of the liquid collecting tank 1 is stepped to form a horizontal lifting surface 12. The sheet 6 is horizontally placed in the liquid collecting tank 1, and the left and right sides thereof are respectively placed on the two lifting surfaces 12. The horizontal height of the lifting surface 12 is between the upper slide hole 11a and the lower slide hole 11b. The coating roller 2 is horizontally arranged in the liquid collecting tank 1 along the left-right direction. The two ends of the coating roller 2 are coaxially provided with handle rods 21. When the coating roller 2 is below the sheet 6, the two handle rods 21 penetrate through the two lower slide holes 11b to extend out of the liquid collecting tank 1. The coating roller 2 moves forward and backward under the action of external force to perform coating work on the lower surface of the sheet 6. Or when the coating roller 2 is above the sheet 6, the two handle rods 21 penetrate through the two upper slide holes 11a to extend out of the liquid collecting tank 1. The coating roller 2 moves forward and backward under the action of external force to perform coating work on the lower surface of the sheet 6. In this way, the sheet can be placed flat in the liquid collecting tank. At the same time, the coating roller can be moved above or below the sheet, and the upper surface or the lower surface of the sheet can be coated by the coating roller. In this way, the coating thickness of the surface of the sheet can be uniform.
[0032] The coating liquid in the embodiment can be paint such as anticorrosive paint, wear-resistant paint or paint. Of course, it is not limited to this. The sheet in the embodiment can be a metal sheet, a plastic sheet or a wooden board, etc.
[0033] The roller part of the coating roller in the embodiment can be a rubber roller with smooth roller surface, which is suitable for paint and other materials that are easy to dry and harden.
[0034] As Figure 3As shown, of course the roll part of the coating roller in the embodiment can also be a bristle roller (i.e. the outer periphery is uniformly distributed with bristles 22), and the handle rods at both ends of the coating roller can be integrally formed and coaxially rotate through the middle part of the roll part, and the handle rods are rotationally arranged relative to the coating roller, at this time the operator can directly move the handle rods forward and backward after holding the two handle rods, at this time the roll part of the coating roller can contact the sheet and rotate by itself to realize uniform coating on the surface of the sheet. Of course, the two handle rods can also be coaxially fixed at both ends of the roll part, at this time the operator needs to rotate the two handle rods while moving the coating roller forward and backward by holding the two handle rods, so that the coating roller rotates on the surface of the sheet to uniformly coat. Preferably, the end of the handle rod close to the coating roller has a smaller diameter to form a through part 211, so that the size of the sliding hole 11 in the vertical direction can be reduced, thereby reducing the probability of splashing of the coating liquid through the sliding hole.
[0035] The coating roller in the embodiment can be removed after use for cleaning treatment to avoid the coating liquid adhering to the roll surface to affect normal use next time.
[0036] The sliding holes in the embodiment are all strip-shaped holes, preferably straight strip-shaped holes.
[0037] As shown in Figure 1 , Figure 2 and Figures 4-7 , the above technical solution further includes a cover plate 3 horizontally supported at the upper end of the liquid collecting groove 1, and two pressing strips 31 are arranged at the lower end of the cover plate 3 in the front-rear direction, and the two pressing strips 31 are spaced apart in the left-right direction, and the two pressing strips 31 are located above the two supporting surfaces 12, respectively, the pressing strip 31 and the corresponding supporting surface 12 are used to clamp the corresponding side of the sheet 6, and the pressing strip 31 has a avoiding sliding hole 311 arranged horizontally along the front-rear direction and horizontally aligned with the upper sliding hole 11a, the front end of the avoiding sliding hole 311 penetrates the front end of the corresponding pressing strip 31, and when the coating roller 2 is located above the sheet 6, each handle rod 21 penetrates the avoiding sliding hole 311 and the upper sliding hole 11a of the corresponding side to extend out of the liquid collecting groove 1. In this way, the cover plate can be provided at the upper end of the liquid collecting groove, so as to avoid splashing of the coating liquid, and in addition, the pressing strips at the lower end of the cover plate can press the sheet tightly on the supporting surface, so as to avoid displacement of the sheet under the action of the coating roller during coating.
[0038] As shown in Figure 5 and Figure 6As shown, in the embodiment, the slide holes are arranged on the pressing strips, and when the cover plate is installed in place on the upper end of the liquid collecting groove, the slide holes are aligned with the upper slide holes on the corresponding side. In this way, the pressing strips can not only press the sheet tightly against the lifting surfaces, but also do not affect the movement of the coating roller in the upper slide holes (specifically, the handle rods at both ends of the coating roller will also pass through the slide holes when passing through the upper slide holes). Furthermore, for the slide holes, when the cover plate is installed in place on the upper end of the liquid collecting groove, the rear end of the slide hole is flush with the rear end of the upper slide hole.
[0039] As shown, Figures 5-7 For the cover plate, since the lower end is provided with two pressing strips distributed along the left-right direction, and the two pressing strips are above the two lifting surfaces, at this time, the two pressing strips can not only press the two sides of the sheet tightly against the two lifting surfaces, but also can limit the left-right movement of the cover plate on the upper end of the liquid collecting groove.
[0040] As shown, Figure 1 , Figure 2 , Figures 4-10 In the above technical solution, a plurality of fasteners 4 are further included, and the left and right sides of the cover plate 3 are provided with a plurality of fasteners 4 distributed along the front-rear direction. The fasteners 4 are used to detachably assemble the cover plate 3 on the upper end of the liquid collecting groove 1. In this way, the cover plate can be assembled on the upper end of the liquid collecting groove through the fasteners, which can prevent the cover plate from moving, and also make the pressing effect of the sheet between the lifting surface and the pressing strip better.
[0041] In the embodiment, the purpose of arranging the fasteners is to further prevent the cover plate from moving forward and backward or jumping up and down. If the cover plate moves forward and backward, it may cause the local pressing effect of the sheet to be poor (for example, if the cover plate moves forward, the pressing effect of the rear end of the sheet will be poor, and conversely, if the cover plate moves backward, the pressing effect of the front end of the sheet will be poor). It may also cause the coating liquid on the coating roller to splash during coating operation, affecting the surrounding environment. If the cover plate jumps up and down, it may cause noise during coating operation, and also may cause the overall pressing effect of the sheet to be poor. Even if the cover plate jumps up and down, it may cause mechanical damage to the surface of the sheet due to impact. Therefore, it is necessary to arrange the fasteners to limit the cover plate in cooperation with the pressing strips.
[0042] Of course, the fasteners can directly use bolts to fasten the cover plate on the liquid collecting groove. However, every time the sheet is taken out or placed, the fasteners need to be unscrewed and the cover plate needs to be removed to completely expose the upper end of the liquid collecting groove. However, this has the disadvantages of complex operation and poor convenience.
[0043] For details, Figure 8 and Figure 9As shown, in the embodiment, the fastener 4 is designed to be U-shaped, and both ends of the fastener 4 are respectively provided with a latch portion 41. The left and right sides of the cover plate 3 are respectively provided with a plurality of first pin holes 32 arranged along the left-right direction and spaced along the front-rear direction. The outer groove walls of the left and right sides of the liquid collecting groove 1 are respectively provided with a plurality of second pin holes 13 arranged along the left-right direction and spaced along the front-rear direction. The plurality of first pin holes 32 and the plurality of second pin holes 13 on the same side correspond to the fastener 4 one by one. The first pin holes 32 and the second pin holes 13 corresponding to each other are aligned vertically. The latch portions 41 at both ends of each fastener 4 are respectively inserted into the corresponding first pin holes 32 and second pin holes 13, so as to limit the cover plate 3 on the upper end of the liquid collecting groove 1. In this way, the fastener can prevent the cover plate from moving up and down and moving forward and backward relative to the liquid collecting groove.
[0044] As shown in Figure 1 and Figure 4 , in the embodiment, four fasteners are provided, two on the left side of the cover plate and two on the right side of the cover plate. The two fasteners on the same side are spaced in the front-rear direction. For a single fastener, the two latch portions at both ends of the fastener are respectively inserted into the corresponding first pin hole and second pin hole. At this time, the fastener is equivalent to gripping the cover plate on the upper end of the liquid collecting groove, so that the cover plate cannot jump up and down, and cannot move forward and backward.
[0045] As shown in Figure 1 , Figure 2 , Figure 5 , Figure 8 and Figure 12 , in the above technical solution, the groove walls on the left and right sides of the liquid collecting groove 1 are both increased in height to form a barrier 14. At least the upper sliding hole 11a is located on the barrier 14. In this way, there is enough space on the side walls on the left and right sides of the liquid collecting groove to set the sliding hole. At the same time, the heights of the front and rear groove walls of the liquid collecting groove are reduced, which is also beneficial to reduce the weight of the liquid collecting groove. Of course, the two lifting surfaces are respectively located on the side of the two barriers close to each other. Preferably, the upper sliding hole is arranged on the barrier, and the lifting surface can be located at the original groove wall height of the liquid collecting groove (that is, the horizontal height of the lifting surface can be consistent with the height of the groove opening on the front and rear sides of the liquid collecting groove, and the lower sliding hole is located below the lifting surface. For the lower sliding hole, the front end can be bent upward to have an upward opening.
[0046] As shown in Figure 1 , Figure 2 , Figure 4 , Figure 6 , Figures 10-12As shown, the liquid collection tank in the above technical solution also includes two limiting strips 15, which correspond one-to-one with the two enclosures 14. The limiting strips 15 are installed at the front end of the corresponding enclosure 14, and there is a transition gap 18 between the limiting strips 15 and the front end of the corresponding enclosure 14 for the handle rod 21 to move. The front ends of the upper sliding hole 11a and the lower sliding hole 11b are connected through the transition gap 18. In this way, the upper sliding hole, the transition gap, and the lower sliding hole on the same side can form a U-shaped slide, with the groove opening of the slide facing backward. At this time, the two handle rods at both ends of the coating roller can be easily moved between the lower sliding hole and the upper sliding hole.
[0047] Specifically, the upper rear end of the tank walls on both sides of the liquid collection tank is raised to form a barrier, while the front end may not be raised, thus reserving space for the installation of the limiting strip.
[0048] like Figures 10-12 As shown, in the above technical solution, the front end of the enclosure 14 is recessed with an insertion hole 141 located above the upper sliding hole 11a. The upper front ends of the left and right sides of the liquid collection tank 1 are recessed with third pin holes 16 located in front of the enclosure 14 on the corresponding sides. The upper rear end of the limiting strip 15 is protruding with an insertion tooth 151 that mates with the insertion hole 141. The front end of the limiting strip 15 is provided with a fourth pin hole 152 that extends vertically. When the insertion tooth 151 is inserted into the corresponding insertion hole 141, the third pin hole 16 aligns with the corresponding fourth pin hole 152 to allow the insertion of the pin 17. The pin 17 is used to assemble the limiting strip 15 onto the front end of the corresponding enclosure 14. This allows the limiting strip to be conveniently installed at the front end of the corresponding enclosure.
[0049] Specifically, such as Figure 11 As shown, the limiting strip in this embodiment can be "Z" shaped, with its upper end forming the insertion teeth, and the fourth pin hole located at its lower front end. In this embodiment, the pin can be a single pin, or the third pin hole can be a threaded hole. In this case, the pin can be replaced by a bolt that threads with the third pin hole (in this case, the pin passes through the fourth pin hole and is threadedly connected to the third pin hole). In this embodiment, the pin and the insertion hole work together to limit the limiting strip. After the insertion teeth are inserted into the insertion hole, the lower front end of the limiting strip is in contact with the upper end of the corresponding unraised part of the collection tank wall. At this time, the limiting strip only has room to move forward. After the pin is inserted into the fourth and third pin holes, the limiting strip cannot move forward. At this time, the limiting strip is precisely limited to the corresponding position to form a transition gap with the corresponding side enclosure.
[0050] like Figure 1 , Figure 2 , Figure 4、 Figure 10 and Figure 12 As shown in the above technical solutions, the bottom wall of the front lower end of the collecting tank 1 is concave downward to form a deepened portion 19, and the deepened portion 19 is located in front of the surrounding barrier 14. In this way, the storage amount of the coating liquid in the collecting tank can be reduced, and the use amount of the coating liquid can be saved. Preferably, the deepened portion in the embodiment can be concave arc-shaped, and the two ends are flush with the left and right sides of the collecting tank.
[0051] Further preferably, as shown in the above technical solutions, Figure 1 、 Figure 2 、 Figure 4 、 Figure 6 and Figure 10 As shown in the above technical solutions, when the sheet is placed on the two lifting surfaces (the lifting surfaces on the two surrounding barriers can be located behind the deepened portion), the sheet is located behind the deepened portion, and the deepened portion and the two lifting surfaces are located between the two sliding grooves. In this way, the coating roller can be moved to the deepened portion to dip the coating liquid during the forward and backward movement, and can also be moved forward and backward along the two lower sliding grooves to perform coating operation on the lower surface of the sheet, or can be moved forward and backward along the two upper sliding grooves to perform coating operation on the upper surface of the sheet.
[0052] Further preferably, as shown in the above technical solutions, Figure 13 In the embodiment, the inner bottom wall (except the deepened portion) of the collecting tank can be slightly inclined forward and downward, and the inclination angle is α, and α can be 1-5° (any value or a range corresponding to any two values among 1°, 2°, 3°, 4° or 5°). In this way, the coating liquid collected at the rear part of the collecting tank (mainly the coating liquid dripping from the sheet) can flow back into the deepened portion by itself, but the lifting surface and the sliding groove still need to be kept parallel to each other, and preferably, the lifting surface and the sliding groove still need to be kept in a horizontal state. In this way, the coating roller can always maintain good contact with the surface of the sheet during coating of the surface of the sheet, and the sheet is always in a horizontal state (so that the liquid film coated on the surface of the sheet can maintain uniform thickness distribution).
[0053] As shown in the above technical solutions, Figure 6 and Figure 10 As shown in the above technical solutions, the lower end of the collecting tank 1 is provided with a liquid discharge port 191, and the liquid discharge port 191 is provided with an opening and closing member 192. In this way, after the coating is completed, the coating liquid in the collecting tank can be recovered by opening the opening and closing member. Preferably, the liquid discharge port in the embodiment can be directly at the deepened portion, and is preferably located at the lowest position of the horizontal height of the deepened portion. In this way, the coating liquid collected in the deepened portion can be fully discharged and recovered, so as to reduce the waste of the coating liquid. The opening and closing member in the embodiment can be a valve or a rubber plug.
[0054] As shown in the above technical solutions, Figure 1 andFigure 2 As shown in the above technical solution, the lower end of the liquid collecting tank 1 is provided with a support frame. In this way, the liquid collecting tank can be lifted by the support frame, which makes it more convenient for people to operate the coating roller. The support frame in this embodiment includes a plurality of support legs, which are used to collectively lift the liquid collecting tank (the support legs are similar to table legs that collectively lift the table top panel, so the specific structure of the support frame is not described in detail in this embodiment).
[0055] Specifically, as shown in the above technical solution, the sheet is placed on the two lifting surfaces, which are located at the rear of the deepening portion, and the cover plate is arranged on the liquid collecting tank, which is also located at the rear of the deepening portion and completely covers the sheet. Figure 1 Figure 4 As shown in the above technical solution, the sheet is placed on the two lifting surfaces, which are located at the rear of the deepening portion, and the cover plate is arranged on the liquid collecting tank, which is also located at the rear of the deepening portion and completely covers the sheet.
[0056] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A sheet coating apparatus characterized by comprising: Including the sump (1) and coating roller (2), the sump (1) is horizontally arranged along the front and back direction, the sump (1) both sides have two horizontally arranged along the front and back direction and spaced distribution of slide hole (11) on the groove wall, the front end of each slide hole (11) is open, the two slide holes (11) of the same side are respectively upper slide hole (11a) and lower slide hole (11b), the inner groove wall of the sump (1) both sides is stepped to form horizontal lifting surface (12), the sheet (6) is horizontally placed in the sump (1), and its both sides are respectively placed on two lifting surfaces (12), the horizontal height of the lifting surface (12) is between the upper slide hole (11a) and the lower slide hole (11b), the coating roller (2) is horizontally arranged in the sump (1) along the left and right direction, and the both ends of the coating roller (2) are coaxially provided with handle rod (21). When the coating roller (2) is below the sheet (6), the two handle rods (21) penetrate through the two lower slide holes (11b) to extend out of the sump (1), and the coating roller (2) moves forward and backward under the action of external force to perform coating operation on the lower surface of the sheet (6). Or when the coating roller (2) is above the sheet (6), the two handle rods (21) penetrate through the two upper slide holes (11a) to extend out of the sump (1), and the coating roller (2) moves forward and backward under the action of external force to perform coating operation on the lower surface of the sheet (6).
2. The sheet coating apparatus according to claim 1, characterized by It also includes a cover plate (3), the cover plate (3) is horizontally placed on the upper end of the sump (1), and the lower end of the cover plate (3) is provided with two pressing strips (31) along the front and back direction, and the two pressing strips (31) are spaced apart along the left and right directions, and the two pressing strips (31) are respectively located above the two lifting surfaces (12), the pressing strip (31) and the corresponding side lifting surface (12) are used to clamp the corresponding side of the sheet (6) together, and the pressing strip (31) has a slide hole (311) horizontally arranged along the front and back direction and horizontally aligned with the upper slide hole (11a), the front end of the slide hole (311) penetrates through the front end of the corresponding pressing strip (31), when the coating roller (2) is above the sheet (6), each handle rod (21) penetrates through the corresponding side slide hole (311) and upper slide hole (11a) to extend out of the sump (1).
3. The sheet coating apparatus according to claim 2, characterized by It also includes a plurality of fasteners (4), the left and right sides of the cover plate (3) are provided with a plurality of fasteners (4) spaced apart along the front and back direction, the fastener (4) is used to detachably assemble the cover plate (3) on the upper end of the sump (1).
4. The sheet coating apparatus according to claim 3, characterized by The fastener (4) is U-shaped, both ends of which are bolt portions (41), the cover plate (3) is concave on both sides and has a plurality of first pin holes (32) arranged in the left-right direction and spaced in the front-back direction, and the outer groove wall on both sides of the liquid collecting groove (1) is concave and has a plurality of second pin holes (13) arranged in the left-right direction and spaced in the front-back direction, the first pin holes (32) and the second pin holes (13) on the same side correspond to the fastener (4) one by one, the first pin holes (32) and the second pin holes (13) corresponding to each other are aligned vertically, and the bolt portions (41) at both ends of each fastener (4) are inserted into the corresponding first pin holes (32) and second pin holes (13) respectively to limit the cover plate (3) on the upper end of the liquid collecting groove (1).
5. The sheet coating apparatus according to claim 1, characterized by The groove walls on both sides of the liquid collecting groove (1) are raised to form a fence (14), and at least the upper sliding hole (11a) is located on the fence (14).
6. The sheet coating apparatus according to claim 5, wherein The liquid collecting groove further comprises two limiting strips (15), the two limiting strips (15) correspond to the two fences (14) one by one, the limiting strip (15) is installed at the front end of the corresponding fence (14), the limiting strip (15) and the front end of the corresponding fence (14) have a transition gap (18) for the movement of the handle rod (21), and the front ends of the upper sliding hole (11a) and the lower sliding hole (11b) are communicated through the transition gap (18).
7. The sheet coating apparatus according to claim 6, characterized by The front end of the fence (14) is concave and has an insertion hole (141) above the upper sliding hole (11a), the front upper end of the liquid collecting groove (1) on both sides is concave and has a third pin hole (16) in front of the corresponding fence (14), the rear upper end of the limiting strip (15) is convex and has an insertion tooth (151) matched with the insertion hole (141), the front end of the limiting strip (15) is provided with a fourth pin hole (152) penetrating vertically, when the insertion tooth (151) is inserted into the corresponding insertion hole (141), the third pin hole (16) is aligned with the corresponding fourth pin hole (152) to allow a bolt (17) to be inserted, and the bolt (17) is used to assemble the limiting strip (15) at the front end of the corresponding fence (14).
8. The sheet coating apparatus according to claim 5, wherein The groove bottom wall of the front lower end of the liquid collecting groove (1) is concave downward to form a deepening portion (19), and the deepening portion (19) is located in front of the fence (14).
9. The sheet coating apparatus according to claim 1, characterized by The roller surface of the coating roller (2) is uniformly distributed with bristles (22).
10. The sheet coating apparatus according to claim 1, characterized by The lower end of the liquid collecting groove (1) is provided with a support frame (5).