Coating machine capable of prolonging on-machine period of coating roller

Abstract

The invention relates to the technical field of metal material preparation and processing, in particular to a coating machine capable of prolonging the on-machine period of a coating roller. The invention provides a coating machine capable of prolonging the on-machine period of a coating roller, which comprises a coating machine frame, a spraying mechanism, a material recovery mechanism, an upper coating roller and a lower coating roller, the spraying mechanism, the upper coating roller and the lower coating roller are connected to the coating machine frame, and a gap for strip steel to pass through is arranged between the upper coating roller and the lower coating roller. The material recycling mechanism is arranged below the lower coating roller, the collecting range of the material recycling mechanism at least covers the upper coating roller and the lower coating roller, the spraying mechanism comprises a first spraying part and a second spraying part, the first spraying part is used for spraying the surface of the upper coating roller and / or the strip steel, and the second spraying part is used for spraying the surface of the lower coating roller; the recycling mechanism comprises a coating collecting tank and a water separation tank, and the water separation tank is arranged above the coating collecting tank and used for closing or opening a tank opening of the coating collecting tank.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of metal material preparation and processing, in particular to a coating machine capable of prolonging the in-machine cycle of coating rolls. BACKGROUND

[0002] At present, a double-roll driven coating machine is used in a silicon steel production line to coat the surface of a strip steel. The coating machine sprays coating liquid on the surface of the strip steel through the spraying beam and the extrusion of the coating roll, and the coating thickness of the silicon steel surface is obtained by adjusting the extrusion force.

[0003] With the demand for product types in the market, the product structure of the machine set is adjusted accordingly, and the product specifications and coating types are increased accordingly. The stability of the operation state of the existing coating coating equipment has declined. Due to the characteristics of the coating liquid, the prolongation of the in-machine cycle of the coating machine, and the increase in the width of the material, the coating roll body groove of the coating machine is partially blocked during the in-machine production process, the roll surface appears color difference, the surface of the strip steel presents coating texture, coating color difference, and other coating defects. The coating data of the surface of the strip steel fluctuates, resulting in a non-standard surface coating thickness, forcing unplanned replacement of the coating machine, and seriously affecting the in-machine cycle of the coating roll of the coating machine. SUMMARY

[0004] The present disclosure aims to at least solve one of the technical problems existing in the prior art or related art.

[0005] To this end, the present disclosure provides a coating machine capable of prolonging the in-machine cycle of coating rolls, comprising a coating machine rack, a spraying mechanism, a material recovery mechanism, an upper coating roll, and a lower coating roll. The spraying mechanism, the upper coating roll, and the lower coating roll are connected to the coating machine rack. The upper coating roll and the lower coating roll have a gap for the passage of a strip steel. The material recovery mechanism is arranged below the lower coating roll, and the collection range of the material recovery mechanism covers at least the upper coating roll and the lower coating roll. The spraying mechanism comprises a first spraying part and a second spraying part. The first spraying part is used to spray the surface of the upper coating roll and / or the strip steel. The second spraying part is used to spray the surface of the lower coating roll. The recovery mechanism comprises a coating collection tank and a water separation tank. The water separation tank is arranged above the coating collection tank, and the water separation tank is used to close or open the tank opening of the coating collection tank.

[0006] In a feasible implementation, the first spraying part comprises a first spraying beam, a first adjusting part, and a plurality of first spraying pipes. The first spraying beam is connected to the coating machine rack. The plurality of first spraying pipes are connected to the first spraying beam. The first adjusting part is used to adjust the spraying angle of the first spraying pipe relative to the strip steel or the upper coating roll.

[0007] In an embodiment, the second spraying member comprises a second spraying beam connected to the coating machine frame, a plurality of second spraying pipes connected to the second spraying beam, and a second adjusting member for adjusting the spraying angle of the second spraying pipes relative to the lower coating roller.

[0008] In an embodiment, the first spraying member and the second spraying member comprise a plurality of spraying passages and a plurality of cleaning passages, the spraying passages being isolated from the cleaning passages, the spraying passages being used for spraying coating material, and the cleaning passages being used for spraying cleaning liquid.

[0009] In an embodiment, an elastic baffle is further provided on the incoming side of the upper coating roller and the lower coating roller, and the baffle surface of the elastic baffle is inclined to the surface slope of the strip steel in contact with the upper coating roller, wherein the first spraying member comprises a coating spraying member for spraying coating material to the elastic baffle and a cleaning spraying member for spraying cleaning liquid to the upper coating roller.

[0010] In an embodiment, the outgoing side of the upper coating roller and the lower coating roller is provided with a supporting roller for supporting the strip steel to maintain the horizontal state of the baffle surface on the outgoing side.

[0011] In an embodiment, a water receiving groove is provided below the supporting roller.

[0012] In an embodiment, a driving mechanism is further provided, the driving mechanism being connected to the coating machine frame and being used for driving the water barrier groove to close or open the slot of the coating collection groove.

[0013] In an embodiment, the driving mechanism comprises a guide rail and a driving member, the water barrier groove being slidingly connected to the guide rail, and the driving member being used for driving the water barrier groove to move in the guide rail.

[0014] In an embodiment, the upper side of the coating collection groove is provided with a water barrier groove slide, and the water barrier groove is detachably connected to the water barrier groove slide, wherein the water barrier groove comprises a groove body, sliding blocks provided on the outer walls of the groove body on opposite sides, and a mounting operation lever connected to the outer wall of the groove body adjacent to the sliding blocks, and the sliding blocks are slidingly connected to the water barrier groove slide.

[0015] Compared with the prior art, the present disclosure at least includes the following beneficial effects: the spraying mechanism of the present disclosure includes a first spraying member and a second spraying member, wherein the first spraying member is used for spraying the surface of the coating roller and / or the strip steel upward, the second spraying member is used for spraying the surface of the coating roller downward, the spraying coating mode material is collected through the coating collection groove of the recovery mechanism, and the water barrier groove is arranged above the coating collection groove for closing or opening the slot of the coating collection groove, so that the water barrier groove can block the coating collection groove for the collection of the cleaning liquid when the spraying mechanism sprays the cleaning liquid, so that the cleaning liquid is not mixed with the coating, the coating concentration change is avoided to affect the coating quality of the strip steel surface, the spraying mechanism can realize the switching of the coating spraying and the cleaning liquid spraying on line, and the coating concentration is ensured not to be affected by the cleaning liquid, so as to realize the on-line cleaning of the coating roller without dismounting, and the on-line period of the coating roller is greatly increased. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings, which are incorporated into and form a part of the specification, illustrate an embodiment consistent with the present disclosure and, together with the description, serve to explain the principles of the disclosure.

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, brief introductions will be given below to the drawings needed to be used in the embodiments or prior art descriptions. Obviously, for those skilled in the art, other drawings can also be obtained from these drawings without any creative labor.

[0018] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of exemplary implementations. The accompanying drawings are merely illustrative and are not considered to be limiting upon the application. Furthermore, like reference numerals denote like parts throughout the drawings. In the drawings:

[0019] Figure 1 It is a cross-sectional structure schematic view of the strip steel running direction of the present disclosure;

[0020] Figure 2 It is a cross-sectional structure schematic view of the strip steel running direction of the present disclosure;

[0021] Figure 3 It is a structure schematic view of the first spraying member of the present disclosure;

[0022] Figure 4 It is a structure schematic view of the water barrier groove of the present disclosure.

[0023] Among them, Figures 1 to 4 The correspondence between the reference signs and the component names in the drawings is as follows:

[0024] 100- strip steel;

[0025] 1-material recovery mechanism; 11-coating collection tank; 12-waterproof tank; 121-tank body; 122-sliding block; 123-mounting operating rod; 2-upper coating roller; 3-lower coating roller; 4-first spraying member; 41-first spraying beam; 42-first adjusting member; 43-first spraying pipe; 5-second spraying member; 51-second spraying beam; 52-second adjusting member; 53-second spraying pipe; 6-elastic baffle; 7-supporting roller; 8-water collection tank. DETAILED DESCRIPTION

[0026] In order to enable the above-mentioned objects, features and advantages of the present disclosure to be more clearly understood, the following will further describe the solutions of the present disclosure. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0027] In the following description, a large number of specific details are set forth in order to facilitate a thorough understanding of the present disclosure, but the present disclosure can also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some of the embodiments of the present disclosure, not all the embodiments.

[0028] At present, with the market demand for product types, the product structure of the unit is adjusted, the product specification and the coating type are increased accordingly, and the stability of the operation state of the existing coating coating equipment is decreased. Due to the characteristics of the coating liquid, the coating machine cycle is prolonged, and the width of the material is increased, which causes the coating machine to produce in the process, the coating roller body groove appears to be partially blocked, the color difference appears on the roller surface, the surface of the strip steel presents coating texture, coating color difference and other coating defects; the coating data on the surface of the strip steel fluctuates, which causes the surface coating thickness index to be out of standard, forcing the unplanned replacement of the coating machine, and seriously affecting the coating cycle of the coating roller. During the replacement of the coating machine, due to the blockage of the groove of the roller body, the coating liquid stops being supplied, the roller body is not lubricated and cooled without coating liquid, the residual coating liquid in the inner wall of the groove appears to be dried and solidified in the groove, and the coating roller cannot be completely cleaned after being removed. The above conditions cause the interruption of production, increase the grinding cost of the coating roller and the abnormal consumption of the coating liquid auxiliary materials. During the removal of the coating roller, due to the blockage of the groove of the roller body, the coating liquid stops being supplied, the roller body is not lubricated and cooled without coating liquid, the residual coating liquid in the inner wall of the groove appears to be dried and solidified in the groove, and the coating roller cannot be completely cleaned after being removed. The coating roller cannot be completely cleaned by relying on the traditional roller surface brushing during the cleaning process after being removed. A small amount of solidified coating liquid still remains in the groove after the coating roller is ground, which brings quality risks for subsequent machine operation. According to the above conditions, the cleaning of the coating roller should be timely and online, and the cleaning effect of the cleaning after being removed is poor;

[0029] And the online cleaning uses cleaning liquid to replace the coating to coat, increases the coating roller pressure, uses the extrusion between the strip steel and the coating roller to reach the purpose of cleaning the coating roller groove, stops the cleaning liquid spraying mode after cleaning the roller surface color difference and switches to the coating spraying mode, which can quickly and effectively clean the groove residual coating liquid. But even if the online cleaning mode is used, there are still problems such as the decrease of the principle concentration of the cleaning liquid, the inadaptation of the cleaning spraying angle and pressure.

[0030] Based on this, the coating machine for prolonging the in-machine cycle of the coating roller is provided, the spraying mechanism of the coating machine includes a first spraying part and a second spraying part, the first spraying part is used to spray the surface of the upper coating roller and / or the strip steel, the second spraying part is used to spray the surface of the lower coating roller, the coating collection tank of the recovery mechanism is used to collect the sprayed coating, and the water barrier tank is arranged above the coating collection tank to close or open the tank opening of the coating collection tank, so that the water barrier tank can block the coating collection tank to collect the cleaning liquid when the spraying mechanism sprays the cleaning liquid, so that the cleaning liquid and the coating do not mix, the coating concentration change does not affect the coating quality of the strip steel surface, the spraying mechanism can realize the switching of the coating spraying and the cleaning liquid spraying online, and the coating concentration is not affected by the cleaning liquid, so as to realize the online cleaning of the coating roller without disassembly, and greatly increase the online cycle of the coating roller.

[0031] The coating machine for prolonging the in-machine cycle of the coating roller is described in detail through specific embodiments as follows:

[0032] Referring to Figures 1 to 4 The coating machine for prolonging the in-machine cycle of the coating roller is provided, which includes a coating machine frame, a spraying mechanism, a material recovery mechanism 1, an upper coating roller 2 and a lower coating roller 3, the spraying mechanism, the upper coating roller 2 and the lower coating roller 3 are connected to the coating machine frame, the upper coating roller 2 and the lower coating roller 3 have a gap for the strip steel 100 to pass through, the material recovery mechanism 1 is arranged below the lower coating roller 3, and the collection range of the material recovery mechanism 1 covers at least the upper coating roller 2 and the lower coating roller 3, the spraying mechanism includes a first spraying part 4 and a second spraying part 5, the first spraying part 4 is used to spray the surface of the upper coating roller 2 and / or the strip steel 100, and the second spraying part 5 is used to spray the surface of the lower coating roller 3; the recovery mechanism includes a coating collection tank 11 and a water barrier tank 12, the water barrier tank 12 is arranged above the coating collection tank 11, and the water barrier tank 12 is used to close or open the tank opening of the coating collection tank 11.

[0033] The coating machine frame of the present disclosure is the frame of the coating machine in the prior art, which will not be described herein. Among them, the relative distance of the upper coating roller 2 and the lower coating roller 3 can be adjusted to realize the adjustment of the size of the gap through which the strip steel 100 passes, so as to adjust the thickness of the coating layer of the strip steel 100. Specifically, the present disclosure sets the upper coating roller 2 as a fixed roller and the lower coating roller 3 as a movable roller, that is, the lower coating roller 3 can move relative to the upper coating roller 2, and can be driven by a motor slide rail, and the driving mode of the coating roller is a conventional setting in the art, which will not be described herein.

[0034] The spraying mechanism of the present disclosure comprises a first spraying member 4 and a second spraying member 5, wherein the first spraying member 4 is used for spraying the surface of the upper coating roller 2 and / or the strip steel 100. Spraying on the upper coating roller 2 makes the coating evenly brushed on the surface of the strip steel through the rotation of the upper coating roller, or directly sprays the coating on the surface of the strip steel to be brushed in contact with the upper coating roller 2, or sprays the coating on both the surface of the upper coating roller 2 and the surface of the strip steel 100 to meet the spraying of the strip steel 100 with high coating thickness.

[0035] The spraying mechanism of the present disclosure has a coating spraying mode and a cleaning liquid spraying mode. In the state of the coating spraying mode, the material sprayed in the spraying mode is collected by the coating collection groove 11 whose collection range covers at least the upper coating roller 2 and the lower coating roller 3; in the state of the cleaning liquid spraying mode, the water barrier groove 12 is arranged above the coating collection groove to close or open the slot of the coating collection groove, so that when the spraying mechanism sprays the cleaning liquid, the water barrier groove can block the coating collection groove to collect the cleaning liquid, so that the cleaning liquid does not mix with the coating, avoiding the influence of the change of the coating concentration on the coating quality of the strip steel surface. The spraying mechanism can realize the switching of the coating spraying and the cleaning liquid spraying on line, and ensure that the coating concentration is not affected by the cleaning liquid, thereby realizing the on-line cleaning of the coating roller without disassembly, greatly increasing the on-line period of the coating roller. Specifically, the water barrier groove 12 can be arranged in a manual driving mode and an electric control driving mode. In this embodiment, the electric control driving mode is specifically selected. For example, the water barrier groove 12 can control the closing or opening of the slot of the coating collection groove 11 through a swing arm or a linear motor. The closing and opening are the occupation of the slot of the coating collection groove 11, which gradually blocks the slot during the driving process, aiming to avoid the flow of the cleaning liquid into the coating collection groove 11. In some embodiments, a driving mechanism is further included, which is connected to the coating machine rack and is used to drive the water barrier groove 12 to close or open the slot of the coating collection groove 11. The driving mechanism can be selected as a swing arm or a linear motor. Further, the driving mechanism includes a guide rail and a driving piece. The water barrier groove 12 is slidably connected to the guide rail, and the driving piece is used to drive the water barrier groove 12 to move in the guide rail. Specifically, the guide direction of the guide rail is arranged above the coating collection groove 11, and the guide rail spans the slot range of the coating collection groove 11. The driving piece drives the water barrier groove 12 to move from one end of the guide rail to the other end. Specifically, at the first end of the guide rail, the water barrier groove 12 completely opens the slot of the coating collection groove 11, and at the opposite second end, the water barrier groove 12 completely closes the slot of the coating collection groove 11.

[0036] In some embodiments, the first spraying piece 4 includes a first spraying beam 41, a first adjusting piece 42, and a plurality of first spraying pipes 43. The first spraying beam 41 is connected to the coating machine rack, the plurality of first spraying pipes 43 are connected to the first spraying beam 41, and the first adjusting piece 42 is used to adjust the spraying angle of the first spraying pipe 43 relative to the strip steel 100 or the upper coating roller 2.

[0037] In this embodiment, the first spraying member 4 comprises a first spraying beam 41, a first adjusting member 42 and a plurality of first spraying pipes 43, wherein the first spraying beam 41 is a collection site of the plurality of first spraying pipes 43, and the first spraying beam 41 inputs the spraying paint or the cleaning liquid to the plurality of first spraying pipes 43 respectively or collectively. In the paint spraying mode and the cleaning liquid spraying mode of the present disclosure, the spraying angle of the plurality of first spraying pipes 43 needs to be adjusted. It should be noted that the cleaning liquid spraying mode or the paint spraying mode can also be performed without adjusting the spraying angle of the plurality of first spraying pipes 43, for example, the plurality of first spraying pipes 43 are set according to the spraying angle of the paint spraying mode. However, the cleaning liquid spraying mode is intended to increase the range of spraying on the device, and the paint spraying mode is intended to consider the parameters of the coating of the strip 100. Therefore, in this embodiment, the first adjusting member 42 is used to adjust the spraying angle of the first spraying pipe 43 relative to the strip 100 or the upper coating roller 2. Specifically, the first adjusting member 42 can be set as a manual drive or an electric drive, and the present disclosure specifically selects an electric drive, for example, the first adjusting member 42 is set as an electric spherical turntable to meet the adjustment requirements of each angle. It can be understood that the first spraying pipe 43 provided with the adjusting member should be provided with a soft connection to be mounted with the adjusting member, so that the basic function of the first spraying pipe 43 can be guaranteed when the adjusting member is adjusted.

[0038] In some embodiments, the second spraying member 5 comprises a second spraying beam 51, a second adjusting member 52 and a plurality of second spraying pipes 53, the second spraying beam 51 is connected to the coating machine rack, the plurality of second spraying pipes 53 are connected to the second spraying beam 51, and the second adjusting member 52 is used to adjust the spraying angle of the second spraying pipe 53 relative to the lower coating roller 3.

[0039] In this embodiment, in order to better clean the coating roller, the second spraying member 5 comprises a second spraying beam 51, a second adjusting member 52 and a plurality of second spraying pipes 53, the second spraying beam 51 is connected to the coating machine rack, the plurality of second spraying pipes 53 are connected to the second spraying beam 51, and the second adjusting member 52 is used to adjust the spraying angle of the second spraying pipe 53 relative to the lower coating roller 3. The structure and operating principle of the second spraying member 5 are the same as those of the first spraying member 4, and will not be described here. The difference between the second spraying member 5 and the first spraying member 4 lies in the spraying pressure and the angle.

[0040] In some embodiments, the first spraying member 4 and the second spraying member 5 comprise a plurality of spraying passages and a plurality of cleaning passages, the spraying passages and the cleaning passages are isolated, the spraying passages are used to spray the paint, and the cleaning passages are used to spray the cleaning liquid.

[0041] In this embodiment, the first spraying member 4 and the second spraying member 5 include a plurality of spraying passages and a plurality of cleaning passages. For example, two spraying passages and two cleaning passages are provided, and the spraying passages and the cleaning passages are arranged adjacently. When the strip steel 100 is coated, the spraying passages are used for spraying, and the cleaning passages are closed. When the coating roller needs to be cleaned, the cleaning passages spray cleaning liquid to the coating roller, and the spraying passages are closed. The arrangement of this embodiment can avoid mixing of the coating material and the cleaning liquid in the first spraying member 4 and the second spraying member 5, and can always ensure the concentration of the coating material in the first spraying member 4 and the second spraying member 5, thereby ensuring the spraying quality of the strip steel 100.

[0042] In some embodiments, an elastic baffle 6 is further included, which is arranged on the incoming side of the upper coating roller 2 and the lower coating roller 3, and the surface of the elastic baffle 6 is inclined to the surface of the strip steel 100 in contact with the upper coating roller 2. The first spraying member 4 includes a coating spraying member 44 and a cleaning spraying member 45. The coating spraying member 44 is used for spraying coating material to the elastic baffle 6, and the cleaning spraying member 45 is used for spraying cleaning liquid to the upper coating roller 2.

[0043] In this embodiment, the elastic baffle 6 of the present disclosure can slow down the speed of the coating material reaching the surface of the strip steel, and can avoid the accumulation of the coating material relative to the direct spraying on the strip steel 100. Specifically, the extension direction of the elastic baffle 6 is the width direction of the strip steel 100, and the extension direction length of the elastic baffle 6 is greater than or equal to the width of the strip steel 100, so as to satisfy that the coating material can fully cover the surface of the strip steel 100. The first spraying member 4 includes a coating spraying member 44 and a cleaning spraying member 45, which are distinguished by spraying pipes for cleaning liquid spraying mode or coating material spraying mode.

[0044] In some embodiments, the outgoing side of the upper coating roller 2 and the lower coating roller 3 is provided with a supporting roller 7, which is used for supporting the strip steel 100 to maintain the horizontal state of the surface on the outgoing side.

[0045] In this embodiment, in the conventional coating spraying mode, the strip steel 100 on the discharge side of the upper coating roller 2 and the lower coating roller 3 is bent downward due to gravity, which exerts pressure on the lower coating roller 3 so that the surface of the strip steel 100 is tightly attached to the lower coating roller 3. In this state, the cleaning liquid spraying mode is limited to the cleaning degree of the roller surface of the coating roller. Therefore, the present disclosure is provided with a support roller 7 on the discharge side of the upper coating roller 2 and the lower coating roller 3, so that the support roller 7 keeps the strip steel 100 in a horizontal state on the discharge side, thereby reducing the base area of the strip steel 100 and the coating roller and improving the cleaning degree of the coating roller in the cleaning liquid spraying mode. Further, a water receiving groove 8 is provided below the support roller 7. The surface of the strip steel 100 will retain cleaning liquid when the cleaning liquid spraying mode is used. The cleaning liquid will not fall off during normal transportation, but because the support roller 7 is provided, the roller surface of the support roller 7 is in contact with the surface of the strip steel 100, which will scrape off the cleaning liquid. Therefore, the water receiving groove 8 is provided below the support roller 7. Specifically, the water receiving groove 8 can be provided as a wide-mouthed groove body, such as a trapezoidal groove. Further, a drainage port can be provided for drainage to facilitate cleaning.

[0046] In some embodiments, a water barrier groove slide is provided above the coating collection groove 11, and the water barrier groove 12 is detachably connected to the water barrier groove slide. The water barrier groove 12 includes a groove body 121, slide blocks 122 provided on the outer walls of the opposite sides of the groove body 121, and an installation operation rod 123 connected to the outer wall of the groove body 121 adjacent to the slide blocks 122.

[0047] In this embodiment, a water barrier groove slide is provided above the coating collection groove 11, and the water barrier groove slide can be connected to the coating machine rack or provided with a separate mounting frame. As shown in Figure 4 The slide blocks 122 are provided on the outer walls of the opposite sides of the groove body 121 and are in sliding connection with the water barrier groove slide. The installation operation rod 123 can be held by the worker to slide the groove body 121 in the water barrier groove slide through the slide blocks 122, so as to close or open the slot of the coating collection groove 11 to meet the cleaning liquid collection in the cleaning liquid spraying mode.

[0048] It should be noted that the cleaning liquid of the present disclosure is provided as desalted water. The coating collection groove 11, the water barrier groove 12, and the water receiving groove 8 described herein can be provided as rectangular groove bodies, circular groove bodies, polygonal groove bodies, etc. The present disclosure is specifically provided as a wide-mouthed trapezoidal groove body. In the cleaning liquid spraying mode, the strip steel 100 between the coating rollers can be replaced with a cleaning template to prevent the surface of the strip steel 100 to be processed from being in contact with the cleaning liquid to produce a reaction, which will cause subsequent coating difficulties or reduce the coating effect.

[0049] In the present disclosure, the terms "first", "second", "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; the term "multiple" refers to two or more, unless otherwise explicitly limited. The terms "mount", "connect", "connect", "fix" and the like should be broadly understood, for example, "connect" can be fixed connection, can also be detachable connection, or integral connection; "connected" can be directly connected, or indirectly connected through intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0050] In the description of the present disclosure, it should be understood that the terms "upper", "lower", "left", "right", "front", "back" and the like indicate the orientation or positional relationship shown in the drawings, and are only used for the purpose of facilitating the description of the present disclosure and simplifying the description, and do not indicate or imply that the device or unit referred to must have a particular direction, be constructed and operated in a particular orientation, therefore, cannot be understood as a limitation on the present disclosure.

[0051] In the description of the present disclosure, the terms "one embodiment", "some embodiments", "a specific embodiment" and the like mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0052] The above is only the preferred embodiment of the present disclosure, and is not intended to limit the present disclosure. For those skilled in the art, the present disclosure can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A coating machine for extending the coating roller cycle, characterized in that: The coating machine comprises a coating machine frame, a spraying mechanism, a material recovery mechanism, an upper coating roller and a lower coating roller, wherein the spraying mechanism, the upper coating roller and the lower coating roller are connected to the coating machine frame, a gap is provided between the upper coating roller and the lower coating roller for the strip to pass through, the material recovery mechanism is arranged below the lower coating roller, and the collection range of the material recovery mechanism covers at least the upper coating roller and the lower coating roller, wherein: The spraying mechanism includes a first spraying member and a second spraying member, wherein the first spraying member is used to spray onto the surface of the upper coating roller and / or the steel strip, and the second spraying member is used to spray onto the surface of the lower coating roller; The recovery mechanism includes a paint collecting trough and a water isolation trough. The water isolation trough is arranged above the paint collecting trough, and the water isolation trough is used to close or open the notch of the paint collecting trough.

2. The coating machine for extending the coating roller cycle according to claim 1, characterized in that: The first spraying part includes a first spray beam, a first adjusting part and a plurality of first nozzles. The first spray beam is connected to the coating machine frame, and the plurality of first nozzles are connected to the first spray beam. The first adjusting part is used to adjust the spraying angle of the first nozzle relative to the strip steel or the upper coating roller.

3. The coating machine for extending the coating roller cycle according to claim 2, characterized in that: The second spraying part includes a second spray beam, a second adjusting part and a plurality of second nozzles. The second spray beam is connected to the coating machine frame. The plurality of second nozzles are connected to the second spray beam. The second adjusting part is used to adjust the spraying angle of the second nozzle relative to the lower coating roller.

4. The coating machine for extending the coating roller cycle according to claim 1, characterized in that: The first spraying member and the second spraying member include a plurality of spraying passages and a plurality of cleaning passages, wherein the spraying passages are isolated from the cleaning passages, the spraying passages are used for spraying paint, and the cleaning passages are used for spraying cleaning liquid.

5. The coating machine for extending the coating roller cycle according to claim 1, characterized in that: It also includes an elastic baffle, which is arranged on the material-incoming side of the upper coating roller and the lower coating roller, and the plate surface of the elastic baffle is inclined toward the surface of the strip steel in contact with the upper coating roller, wherein the first spraying part includes a paint spraying part and a cleaning spraying part, the paint spraying part is used to spray paint onto the elastic baffle, and the cleaning spraying part is used to spray cleaning liquid onto the upper coating roller.

6. The coating machine for extending the coating roller cycle according to claim 1, characterized in that: Support rollers are provided on the discharge sides of the upper coating roller and the lower coating roller, and the support rollers are used to support the strip steel at the discharge side to keep the plate surface in a horizontal state.

7. The coating machine for extending the coating roller cycle according to claim 1, characterized in that: A water receiving trough is provided below the supporting roller.

8. The coating machine for extending the coating roller cycle according to claim 1, characterized in that: It also includes a driving mechanism, which is connected to the coating machine frame and is used to drive the water isolation tank to close or open the notch of the paint collecting tank.

9. The coating machine for extending the coating roller cycle according to claim 1, characterized in that: The driving mechanism includes a guide rail and a driving member. The water isolation trough is slidably connected to the guide rail. The driving member is used to drive the water isolation trough to move in the guide rail.

10. The coating machine for extending the coating roller cycle according to claim 1, characterized in that: A water isolation trough slide is provided above the paint collecting trough, and the water isolation trough is detachably connected to the water isolation trough slide, wherein: The water isolation trough includes a trough body, a slider and an installation operating rod. The slider is arranged on the two opposite outer walls of the trough body, and the slider is slidably connected to the water isolation trough slide. The installation operating rod is connected to the outer wall of the trough body adjacent to the slider.

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