A flattening mechanism for film processing of a metal plate

Abstract

The present application relates to the field of metal plate film covering, and discloses a flattening mechanism for metal plate film covering processing, which comprises a shell and a transmission plate, and the inner side wall of the shell is rotationally connected with an upper roller and a lower roller. A pressing and scraping mechanism composed of a base, an elastic plate and a scraper is fixedly connected to the front of the roller on the top of the shell; a cutting mechanism is fixedly connected to the rear of the roller on the top of the shell; two limiting columns are vertically fixed in a support, and the outer part of the limiting columns is slidingly connected with a pulling block and a sliding plate with a cutting assembly through a traction rope; and a reset spring is sleeved outside the limiting columns. The deforming recovery ability of the elastic plate is used to make the scraper closely adhere to the surface of the material and forcibly scrape off dust, effectively eliminate the film gap and improve the overall adhesion, and the longitudinal pulling is converted into transverse cutting displacement stably through the traction rope, and the spring is combined to realize automatic resetting after cutting, thereby significantly improving the cooperation efficiency of the continuous processing assembly line.

Description

Technical Field

[0001] This invention relates to the field of metal sheet coating, and more particularly to a flattening mechanism for metal sheet coating processing. Background Technology

[0002] Metal sheets are widely used in modern industrial manufacturing. To improve the corrosion resistance and aesthetics of the sheet surface, a coating process is usually required. In a conventional coating production line, the flattening mechanism is the core section, which mainly relies on the physical extrusion of upper and lower rollers to tightly adhere the film to the metal sheet surface.

[0003] In actual industrial production environments, metal sheets easily absorb dust and fine particles from the surrounding environment during the initial flow and conveying process. Existing laminating and flattening equipment often only has a single roller pressing and shaping function, lacking a corresponding surface cleaning structure before the material enters the rollers for extrusion. Directly laminating metal sheets containing particulate impurities will hinder sufficient contact between the film and the metal substrate, resulting in micro-bubbles and local voids, severely reducing the adhesion and surface smoothness of the laminated product.

[0004] Furthermore, metal sheet lamination is typically a continuous feeding operation. After the sheet is flattened and shaped, the remaining film at the ends must be trimmed. Traditional flattening equipment mostly lacks a mechanically linked post-cutting structure, and the trimming of excess film often relies on manual cutting or transfer to a separate cutting machine. This separation of workstations not only makes it difficult to ensure uniform and even cuts, but also lacks effective transmission guidance and automatic reset mechanisms during the cutting process. This results in manual cutting actions not matching the continuous material conveying rhythm, easily causing production line interruptions and significantly reducing the continuity and production efficiency of the overall lamination operation.

[0005] Therefore, this invention proposes a flattening mechanism for metal plate coating processing to overcome the shortcomings of the prior art. Summary of the Invention

[0006] In view of the problems existing in the flattening mechanism for metal sheet coating processing, such as the lack of a matching surface cleaning structure for the metal sheet material before entering the roller extrusion, which leads to dust and impurities hindering adhesion and creating gaps in the coating, and the lack of a mechanically linked post-cutting structure in the post-coating cutting and trimming process, which often relies on manual or separate workstations, resulting in unstable guidance and automatic reset of the cutting process and significantly reducing continuous processing efficiency, this invention aims to provide a flattening mechanism for metal sheet coating processing with an improved structure that can effectively solve the above problems.

[0007] The present invention provides a flattening mechanism for metal plate coating processing, comprising: a housing, and a transmission plate fixedly connected to the front outer wall of the housing, the upper surface of the transmission plate being in slidable contact with material; an upper roller and a lower roller being rotatably connected to the inner wall of the housing; and a pressing and scraping mechanism and a cutting mechanism disposed at both ends of the conveying line.

[0008] The scraping mechanism has a base fixedly connected to the top of the housing, and an elastic plate extending downwards is fixedly connected to the bottom surface of the base. A scraper is fixedly connected to the bottom end of the elastic plate. The cutting mechanism has a support fixedly connected to the top of the housing. A first limiting post and a second limiting post are fixedly connected inside the support. The outer wall of the first limiting post is slidably connected to a pull block with a through-shaped interior, and the outer wall of the second limiting post is slidably connected to a slide plate with a through-shaped interior. A traction rope is fixedly connected between the pull block and the slide plate, and a cutting component is fixedly connected to the outer wall of the slide plate.

[0009] Furthermore, the main components are combined through a specific spatial arrangement and mechanical linkage. Specifically, the upper roller is arranged directly above the lower roller, and the top of the housing is fixedly connected to the scraping mechanism and the cutting mechanism, such that the scraping mechanism is located in front of the upper roller, while the cutting mechanism is located behind the upper roller, thus constructing a complete processing link from dust removal, flattening to finishing. In the transmission of the cutting mechanism, the traction rope slides against the inner wall of the support member, thereby smoothly converting the longitudinal force along the first limiting post into the lateral cutting displacement along the second limiting post.

[0010] A first spring is sleeved on the outer wall of the first limiting post. The two ends of the first spring abut against the side wall of the pull block and the inner wall of the support member, respectively. It is used to compress and store energy when the pull is subjected to force, so as to release the elastic potential energy to push the pull block to automatically reset after the external force is removed.

[0011] The outer wall of the second limiting post is fitted with a second spring. The two ends of the second spring abut against the side wall of the slide plate and the inner wall of the support member, respectively, so as to cooperate with the movement of the traction rope and realize the synchronous elastic reset of the lateral displacement component after the cutting operation is completed.

[0012] The cutting assembly specifically includes a connecting plate and a cutting blade. The end of the connecting plate is fixedly connected to the outer wall of the slide plate. The connecting plate extends in a cantilever shape and the cutting blade is fixedly connected to the outer wall of its other end, thereby enabling the cutting blade to perform precise cutting as the slide plate crosses the material conveying path.

[0013] The first end of the traction rope is fixedly connected to the side wall of the pull block, while the second end of the traction rope is fixedly connected to the side wall of the slide plate, ensuring that the driving force can be transmitted with high fidelity and without disconnection when changing direction at a right angle.

[0014] The centerlines of the first limiting post and the second limiting post are arranged perpendicularly to each other in a spatial layout. This orthogonal guiding relationship realizes a reasonable conversion between the direction of force application and the actual cutting edge direction.

[0015] The centerline of the upper roller is parallel to the centerline of the lower roller to ensure that when the material passes through the roller gap, the upper and lower roller surfaces can apply a uniform and continuous compaction force to the coating layer and the metal plate.

[0016] The bottom edge of the scraper is strictly parallel to the upper surface of the transmission plate, thereby ensuring that when metal material is brought into the front processing area, the scraping edge can fully cover and adaptively and tightly fit the surface of the plate to complete the forced scraping dust removal operation.

[0017] The present invention has the following beneficial effects: 1. This invention solves the problem of voids in the coating process caused by the lack of an automatic surface dust removal structure before coating metal plates in the prior art by setting a pressure scraping mechanism consisting of a base, an elastic plate, and a scraper in front of the roller. It achieves the technical effect of using the deformation recovery ability of the elastic plate to make the scraper closely adhere to the material surface, forcibly scraping away dust and impurities on the surface of the metal plate before coating, thereby improving the adhesion between the metal base plate and the coating, eliminating micro air bubbles between the coating layers, and laying a high-cleanliness physical foundation for the subsequent high-pressure leveling and shaping process.

[0018] 2. This invention solves the problem of inconvenient trimming caused by the lack of mechanical linkage in the residual film trimming process after lamination in the prior art by setting a cutting mechanism behind the roller and using the limiting column, pull block, slide plate and traction rope in the support to construct an orthogonal mechanical linkage transmission path. It achieves the technical effect of smoothly converting the longitudinal pulling operation into the transverse cutting displacement power, driving the cutting blade to accurately cross the material conveying path, and completing the efficient and flat cutting of the residual film at the end of the laminated metal plate.

[0019] 3. This invention solves the problem of existing cutting components failing to automatically return to their initial position after a single operation, causing processing interruptions, by installing springs on the outside of the limiting post that abut against the inner walls of the sliding component and the support component. It achieves the technical effect of using a double-spring structure to accumulate elastic potential energy during the pulling process and release it synchronously after the external force is removed, forcing the pulling block and the sliding plate carrying the cutting blade to automatically and quickly slide back to their original positions, thereby greatly improving the smoothness of the cutting process and continuous production line. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0021] Figure 1 This is a three-dimensional schematic diagram of a flattening mechanism for metal plate coating processing proposed in this invention; Figure 2 This is a schematic diagram of the structure of the first limiting post of a flattening mechanism for metal plate coating processing proposed in this invention; Figure 3 This is a schematic diagram of the base of a flattening mechanism for metal plate coating processing proposed in this invention; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 for Figure 3 Enlarged view of point B in the middle.

[0022] Legend: 1. Shell; 2. Conveyor plate; 3. Material; 4. Scraping mechanism; 41. Base; 42. Elastic plate; 43. Scraper; 5. Upper roll; 6. Lower roll; 7. Cutting mechanism; 71. Support component; 72. First limiting post; 73. First spring; 74. Pull block; 75. Traction rope; 76. Second limiting post; 77. Second spring; 78. Slide plate; 79. Cutting assembly; 791. Connecting plate; 792. Cutting disc. Detailed Implementation

[0023] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0024] Example: Reference Figures 1 to 5 This invention provides a flattening mechanism for metal plate coating processing, which aims to solve the problems in the prior art where the lack of an automatic dust removal structure before metal plate coating leads to gaps in the coating and the lack of mechanical linkage in the cutting process after coating, resulting in poor continuity of the overall processing operation due to the inability of the cut parts to automatically reset.

[0025] The flattening mechanism for metal plate coating processing includes a housing 1 and a transmission plate 2 fixedly connected to the front outer wall of the housing 1. The housing 1 serves as the bottom base and support frame of the entire device to support the various functional components and provide high-strength structural support. The transmission plate 2 is horizontally distributed around the housing 1 to place and guide the material 3 to move stably along the preset processing path, thereby providing a smooth feeding channel for subsequent dust removal and flattening processes. During processing, the material 3 is laid flat on the transmission plate 2, and the bottom surface of the material 3 makes sliding contact with the upper surface of the transmission plate 2. The material 3 is driven to move forward smoothly by the external transmission mechanism.

[0026] A roller pressing assembly is provided in the middle area of ​​the housing 1. Specifically, an upper roller 5 and a lower roller 6 are rotatably connected to the inner side wall of the housing 1. In order to ensure that a uniform and continuous flattening force is applied to the upper and lower surfaces of the material 3, the upper roller 5 is arranged and located directly above the lower roller 6, and the axis of the upper roller 5 is parallel to the axis of the lower roller 6. The material 3 moves along the conveyor plate 2 and smoothly enters the preset slit between the upper roller 5 and the lower roller 6. The upper roller 5 and the lower roller 6 rotate in cooperation to press the material 3 and the coating layer. The mechanical extrusion force of the rollers themselves is used to tightly press the bonding surface between the coating and the metal base plate, and squeeze out the tiny air trapped between the layers to ensure the flatness and surface firmness of the coated product.

[0027] The top of the housing 1 is fixedly connected to the pressure scraping mechanism 4 and the cutting mechanism 7. In the spatial layout of the overall processing line, the pressure scraping mechanism 4 is located in front of the upper roller 5. It is used to clean the upper surface of the material 3 before the material 3 enters the roller to be coated, thereby eliminating the coating gap caused by dust and impurities. The cutting mechanism 7 is arranged and located behind the upper roller 5. It is used to cut off and trim the excess film after the material 3 is flattened and coated. Thus, the housing 1 is used to form a complete linkage processing chain of pre-dust removal, central flattening and post-cutting.

[0028] The pressure scraping mechanism 4 includes a base 41, an elastic plate 42, and a scraper 43. The base 41 serves as the basic carrier for the suspended arrangement of the pressure scraping assembly and is fixedly connected to the top of the housing 1 near the feed side. The bottom surface of the base 41 is fixedly connected to the elastic plate 42, which extends downward and uses its own material's elastic deformation recovery capability to provide continuous and adaptive flexible downward pressure compensation force for the lower component. The bottom end of the elastic plate 42 is fixedly connected to the hard scraper 43. In terms of spatial position and size arrangement, the bottom edge of the scraper 43 is parallel to the upper surface of the transmission plate 2. In order to ensure that the surface to be processed of the metal sheet can be completely covered and thus prevent edge areas from being missed, the length of the scraper 43 is greater than or equal to the width of the material 3.

[0029] In actual working conditions, the conveyor plate 2 drives the material 3 to move forward smoothly and pass directly under the pressure scraping mechanism 4. The metal surface of the material 3 is inevitably subjected to the reverse elastic force generated by the downward bending deformation of the elastic plate 42, so that the bottom edge of the scraper 43 is closely attached to and pressed on the surface of the material 3 to be coated throughout the process. This structure based on elastic compensation and physical scraping ensures that the scraper 43 can stably peel off and forcibly scrape off the dust and impurity particles attached to the surface of the metal plate when the material 3 moves through it. This greatly improves the surface adhesion when the subsequent coating layer is applied, so as to eliminate coating bubbles and micro gaps. This effectively lays a highly clean physical foundation for the high-pressure flattening and shaping process of the upper roller 5 and the lower roller 6.

[0030] A support member 71 is fixedly connected to the top of the housing 1. The support member 71 has an L-shaped channel structure inside and serves as a sliding guide carrier for the cutting assembly. The first limiting post 72 and the second limiting post 76 are fixedly connected to the two ends inside the support member 71, respectively. In order to achieve the orthogonal conversion between the force application direction and the cutting direction, the axis of the first limiting post 72 and the axis of the second limiting post 76 are perpendicular to each other. This allows the longitudinal operation along the direction of the first limiting post 72 to be reasonably converted into a transverse cutting action along the direction of the second limiting post 76.

[0031] The pull block 74 is internally slidably connected to the outer wall of the first limiting post 72, while the slide plate 78 is internally slidably connected to the outer wall of the second limiting post 76. A flexible transmission component is connected between the outer wall of the pull block 74 and the outer wall of the slide plate 78. Specifically, the first end of the traction rope 75 is fixedly connected to the side wall of the pull block 74, and the tail end of the traction rope 75 is fixedly connected to the side wall of the slide plate 78. In order to ensure that the traction rope 75 does not leave the working track when stretched and smoothly transitions at right-angle bends, the traction rope 75 slides against the inner side wall of the support member 71, thereby transmitting the linear displacement generated by the pull block 74 to the laterally arranged slide plate 78 with high fidelity.

[0032] A cutting assembly 79 is fixedly connected to the outer wall of the slide plate 78. The cutting assembly 79 includes a cantilevered connecting plate 791 and a cutting blade 792 for directly cutting the film. The end of the connecting plate 791 is fixedly connected to the outer wall of the slide plate 78. The connecting plate 791 extends vertically downward and the cutting blade 792 is fixedly connected to the outer wall of its other end. The blade of the cutting blade 792 faces the cross-section of the conveying path after the film-coated material 3 leaves the roller, so that when the slide plate 78 moves laterally, it can drive the cutting blade 792 to cross the area to be cut of the material 3 to complete the trimming.

[0033] The outer wall of the first limiting post 72 is fitted with a first spring 73, the two ends of which abut against the side wall of the pull block 74 and the inner wall of the support member 71, respectively. Similarly, the outer wall of the second limiting post 76 is also fitted with a second spring 77, the two ends of which abut against the side wall of the slide plate 78 and the inner wall of the support member 71, respectively. By utilizing the double spring structure, elastic potential energy is accumulated during the pulling process and released synchronously after the external force is removed, forcing the pull block 74 and the slide plate 78 carrying the cutting disc 792 to automatically and quickly slide back to their original positions, thereby greatly improving the smoothness of the coordination between the cutting process and continuous production line production.

[0034] The implementation principle of this application embodiment is as follows: After the entire mechanism is started, the shell 1 serves as an overall support frame, bearing all functional components. The material 3 is placed on the transmission plate 2, and the transmission plate 2 drives the material 3 to move along the preset path, providing a stable material 3 conveying foundation for the subsequent flattening process. When the material 3 moves to the position of the pressing and scraping mechanism 4, the base 41 provides installation support. The elastic plate 42 drives the scraper 43 to adhere to the surface of the material 3 by its own elastic characteristics. The scraper 43 scrapes away the dust and impurities on the surface of the metal plate during the movement of the material 3, so that the surface of the material 3 can improve the adhesion when the film is coated, thereby eliminating the gaps generated during the film coating, and laying a flat foundation for the subsequent roll flattening. After the pressing and scraping process is completed, material 3 continues to move between the upper roller 5 and the lower roller 6. The upper roller 5 and the lower roller 6 rotate together to roll and press the material 3 and the coating layer. The rolling pressure compacts the bonding surface between the coating and the metal plate, so that the coating adheres tightly to the surface of material 3, thereby ensuring the flatness and firmness of the coating and completing the core flattening and shaping step. When material 3 is flattened and conveyed to the cutting mechanism 7 area, the support 71 provides an installation carrier for the cutting components. The operator pulls the pull block 74, causing the pull block 74 to drive the traction rope 75 fixedly connected to it. The traction rope 75 slides on the inner wall of the support 71, and the other end is fixedly connected to the slide plate 78, thus enabling the slide plate 78 to move. The outer wall of the slide plate 78 is fixedly connected to the connecting plate 791, and the other side of the connecting plate 791 is fixedly connected to the cutting blade 792, so that when the slide plate 78 moves, the cutting blade 792 can move synchronously with the slide plate 78, thereby enabling the cutting blade 792 to cut the film that has completed the coating operation, thus obtaining a flat and uniformly sized coated metal sheet. During the movement of the pull block 74, the inner wall of the pull block 74 slides... The movable connection to the outer wall of the first limiting post 72 allows the pull block 74 to move stably. The first spring 73 is sleeved on the outer wall of the first limiting post 72. The pull block 74 can press the first spring 73 with the support member 71, thereby causing the pull block 74 to press the first spring 73 when it moves. After the movement ends, the first spring 73 provides a restoring force, causing the pull block 74 to return to its original position and wait for the next operation. Similarly, when the slide plate 78 is pulled by the traction rope 75, it can slide stably on the outer wall of the second limiting post 76, while pressing the second spring 77 sleeved on the outer wall of the second limiting post 76. After the slide plate 78 with the cutting component 79 finishes its operation, the second spring 77 can provide a restoring force, causing the slide plate 78 to return to its original position and wait for the next operation, thereby greatly improving the operation continuity of the entire mechanism.

[0035] The coordinated control process for material conveying and dust removal involves the following: During actual operation, the feed speed of the conveyor plate 2 is synchronized with the linear speed of the upper roller 5 and the lower roller 6 to ensure that the material 3 does not experience pulling or stacking when passing through the pressure scraping mechanism 4 and the roller pressing area. Specifically, the control system presets the feed speed of the conveyor plate 2 to V1 = 0.05~0.15 m / s, and the rotational linear speed V2 of the upper roller 5 and the lower roller 6 satisfies V2 = V1 × (1 ± 0.02) to ensure that the material 3 experiences no tension fluctuations before entering the roller gap. Simultaneously, the pre-compression deformation of the elastic plate 42 is controlled between Δh = 2~5 mm, stabilizing the scraping force applied by the scraper 43 to the metal plate surface within the range of F = 0.5~2.0 N / cm. This ensures effective removal of particulate impurities while avoiding scratches or excessive friction on the coating substrate.

[0036] Next, the cutting trigger logic and reset timing control are explained: When the material 3 is coated and conveyed to the cutting mechanism 7 area, the operator or an external sensor (such as a photoelectric switch or limit switch) triggers the longitudinal pulling operation of the pull block 74. The effective stroke L1 of the pull block 74 is set to 10-30 mm, which is converted into the lateral stroke L2 of the slide plate 78 by the traction rope 75, which is 15-40 mm, so that the cutting blade 792 completely crosses the width direction of the material 3 to complete the cutting. After the cutting is completed, the external force is removed, and the first spring 73 and the second spring 77 release elastic potential energy in concert. The pull block 74 and the slide plate 78 automatically reset along the first limit post 72 and the second limit post 76, respectively. The reset time is controlled within Δt ≤ 0.5 s to ensure that it does not affect the continuous feeding of the next section of material. This timing control mechanism enables the cutting mechanism 7 to seamlessly connect with the feeding cycle of the transmission plate 2, significantly improving the continuity and automation of the assembly line operation.

[0037] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A flattening mechanism for metal sheet coating processing, comprising a housing and a transfer plate fixedly connected to the front outer wall of the housing, wherein the upper surface of the transfer plate slidably contacts material; Its features are, The inner wall of the housing is rotatably connected to an upper roller and a lower roller, with the upper roller located directly above the lower roller. The top of the housing is fixedly connected to a scraping mechanism and a cutting mechanism, respectively. The scraping mechanism is located in front of the upper roller, and the cutting mechanism is located behind the upper roller. The pressing and scraping mechanism includes a base fixedly connected to the top of the housing, an elastic plate fixedly connected to the bottom surface of the base, and a scraper fixedly connected to the bottom end of the elastic plate; The cutting mechanism includes a support member fixedly connected to the top of the housing. A first limiting post and a second limiting post are fixedly connected inside the support member. The inside of the pull block is slidably connected to the outer wall of the first limiting post. The inside of the slide plate is slidably connected to the outer wall of the second limiting post. A traction rope is fixedly connected between the pull block and the slide plate. The traction rope is slidably attached to the inner side wall of the support member. A cutting component is fixedly connected to the outer wall of the slide plate.

2. The flattening mechanism for metal plate coating processing as described in claim 1, characterized in that, A first spring is sleeved on the outer wall of the first limiting post, and the two ends of the first spring abut against the side wall of the pull block and the inner wall of the support member, respectively.

3. The flattening mechanism for metal sheet coating processing as described in claim 1, characterized in that, A second spring is fitted on the outer wall of the second limiting post, and the two ends of the second spring abut against the side wall of the slide plate and the inner wall of the support member, respectively.

4. A flattening mechanism for metal sheet coating processing as described in claim 1, characterized in that, The cutting assembly includes a connecting plate and a cutting blade. One end of the connecting plate is fixedly connected to the outer wall of the slide plate, and the other end of the connecting plate is fixedly connected to the cutting blade.

5. A flattening mechanism for metal sheet coating processing as described in claim 1, characterized in that, The first end of the traction rope is fixedly connected to the side wall of the pull block, and the second end of the traction rope is fixedly connected to the side wall of the slide plate.

6. A flattening mechanism for metal sheet coating processing as described in claim 1, characterized in that, The centerline of the first limiting post is perpendicular to the centerline of the second limiting post.

7. A flattening mechanism for metal sheet coating processing as described in claim 1, characterized in that, The centerline of the upper roll is parallel to the centerline of the lower roll.

8. A flattening mechanism for metal sheet coating processing as described in claim 1, characterized in that, The bottom edge of the scraper is parallel to the upper surface of the transmission plate.

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