Aluminum alloy strip automatic coating equipment and process

Abstract

The present application relates to an automatic film coating equipment and process for aluminum alloy strips, and relates to the technical field of film coating equipment for strips, which comprises a feeding mechanism, a reaction device and a winding mechanism; the reaction device comprises a base and a plurality of treatment tanks, and the plurality of treatment tanks are fixedly arranged on the side surface of the base along a straight line direction; the plurality of treatment tanks are a degreasing tank for removing oil stains on the surface of the strip, a rust removing tank for removing rust stains on the surface of the strip, a neutralizing tank for neutralizing rust removing liquid on the strip, a coating tank for coating the surface of the strip and a drying tank for drying the strip, and a strip channel which passes through the plurality of treatment tanks at the same time is provided above the base; the degreasing tank is located at the end of the base near the feeding mechanism, and the drying tank is located at the end of the base near the winding mechanism; a recovery component and a supply component are provided on the side surface of the base; in the present application, automatic film coating processing of the strip is realized, the coating efficiency of the strip is improved, and the needs of mass production are met.

Description

Technical Field

[0001] The present application relates to the technical field of strip coating equipment, and in particular to an automatic coating equipment and process for aluminum alloy strips. Background Art

[0002] Aluminum alloy strips, as the preferred material for cable shielding, play a vital role in the fields of power transmission and communication due to their light weight, high strength, excellent conductivity, etc. However, with the advancement of science and technology and the continuous improvement of industrial demand, the performance requirements for aluminum alloy strips are becoming increasingly stringent, especially in terms of conductivity and corrosion resistance.

[0003] In order to meet these challenges, surface coating of aluminum alloy strips has become an effective solution. Coating can not only improve the conductivity of the material, but also significantly enhance its corrosion resistance, thereby extending the service life of the cable and ensuring the stability and safety of power and signal transmission. In the relevant technical field, manual spraying undoubtedly occupies an important position in the traditional method of aluminum alloy surface treatment. This method mainly relies on the skills and experience of the operator to evenly spray the paint on the aluminum alloy surface through manual operation to achieve the purpose of beautification, corrosion protection or functional enhancement.

[0004] First, manual spraying is inefficient and difficult to adapt to the needs of modern large-scale production; second, manual spraying is difficult to ensure uniformity of film quality. Due to the influence of various factors such as the skill level of the operator, the accuracy of the spraying equipment, and the spraying environment, manual spraying often leads to problems such as uneven film thickness and surface roughness, which not only affects the aesthetics of the aluminum alloy strip, but is also likely to have an adverse effect on its conductivity and corrosion resistance, and there is room for improvement. Summary of the invention

[0005] The purpose of this application is to provide an automatic coating device and process for aluminum alloy strips, so as to solve the problem that the coating efficiency of aluminum alloy strips by traditional coating methods is low and cannot meet the demand.

[0006] In the first aspect, the present application provides an automatic coating device for aluminum alloy strips using the following technical solutions:

[0007] An automatic coating equipment for aluminum alloy strips, comprising a feeding mechanism for unwinding the strips, a reaction device for processing the strips and a winding mechanism for winding the coated strips; the reaction device is located between the feeding mechanism and the winding mechanism; the reaction device comprises a base and a plurality of treatment tanks, and the plurality of treatment tanks are fixedly arranged on the side surface of the base along a straight line direction; the plurality of treatment tanks are a degreasing tank for removing oil stains on the surface of the strips, a rust removing tank for removing rust stains on the surface of the strips, a neutralizing tank for neutralizing rust removing liquid on the strips, a coating tank for coating the surface of the strips and a drying tank for drying the strips, and a strip passage is provided above the base which passes through the degreasing tank, the rust removing tank, the neutralizing tank and the drying tank in sequence; the degreasing tank is located at the end of the base close to the feeding mechanism, and the drying tank is located at the end of the base close to the winding mechanism; the side surface of the base is provided with a recovery component for recovering waste gas generated in the treatment tank and a supply component for supplying the treatment liquid required by the corresponding treatment tank.

[0008] By adopting the above technical scheme, when the automatic coating equipment is in operation, the material tray is pre-installed on the feeding mechanism, and the corresponding treatment liquid is supplied to the corresponding treatment tank by using the supply component; then the feeding mechanism is used to unwind the strip, and the strip is sequentially entered into the degreasing tank, the neutralization tank, the coating tank and the drying tank, and after drying, the processed strip is reeled up by the reeling mechanism; in this process, the waste gas generated in the degreasing tank, the rust removal tank, the neutralization tank and the coating tank is recovered by the recovery component; thereby, the automated coating processing of the strip is realized, the coating efficiency of the strip is improved, and the needs of mass production are met.

[0009] Optionally, the recovery component includes a main pipe with negative pressure inside and a plurality of branch pipes fixed on the main pipe, and the plurality of branch pipes are respectively connected to the interior of the degreasing tank, the rust removal tank, the neutralization tank and the coating tank.

[0010] By adopting the above technical scheme, during the strip coating process, waste gas will be generated inside the degreasing tank, rust removal tank, neutralization tank and coating tank. Due to the combined arrangement of the main pipe and several branch pipes, the waste generated in the degreasing tank, rust removal tank, neutralization tank and coating tank can be concentratedly sucked into the main pipe for treatment, thereby reducing the impact of the generated waste gas on the processing environment and improving its environmental protection performance.

[0011] Optionally, the degreasing pool includes two degreasing tanks fixed side by side on the base for containing degreasing liquid, a first water washing tank for cleaning residual degreasing liquid and a first wind shearing box for drying the water washing liquid on the strip, and the two degreasing tanks are used in rotation.

[0012] By adopting the above technical solution, when the degreasing liquid in a degreasing tank gradually reduces its efficiency or reaches a saturated state due to use, it can be immediately switched to another degreasing tank to continue the degreasing work without interrupting the entire production process to replace or regenerate the degreasing liquid. This greatly reduces the waiting time and improves the degreasing efficiency; the first water washing tank is used to clean the residual degreasing liquid on the strip to ensure the cleanliness of subsequent processing; and the first wind shearing box is used to blow dry the water washing liquid on the strip to avoid the adverse effects of residual water on subsequent processes. This design makes the entire degreasing, cleaning, and drying process smoother and more efficient.

[0013] Optionally, the rust removal pool includes two rust removal boxes fixed side by side on the base for holding rust removal liquid, a second water washing box for cleaning residual rust removal liquid and a second wind shear box for blowing dry the water washing liquid on the strip, and the two rust removal boxes are used in rotation.

[0014] By adopting the above technical solution, two rust removal boxes fixed side by side on the base are used in rotation to ensure the continuity of rust removal work. When the rust removal liquid in one rust removal box is less effective or reaches saturation, it can be immediately switched to another rust removal box without interrupting the production process, thereby improving the rust removal efficiency. By using a second water washing box for cleaning the residual rust removal liquid and a second air shearing box for drying the water washing liquid on the strip, the production process is further optimized to ensure that the surface of the strip after rust removal is clean and dry, providing good conditions for subsequent processing procedures.

[0015] Optionally, the neutralization tank includes two neutralization boxes fixed side by side on the base for carrying neutralization liquid, a third water washing box for cleaning residual neutralization liquid and a third wind shear box for drying the water washing liquid on the strip, and the two neutralization boxes are used in rotation.

[0016] By adopting the above technical solution, the main function of the neutralizing liquid is to neutralize the acidic or alkaline components in the rust removal liquid to prevent these residues from further corroding the metal surface or affecting the stability of the metal. Through the neutralization treatment, the metal surface can be ensured to be smoother and more stable, thereby improving the surface quality of the metal after rust removal. When the neutralizing liquid in a neutralization box reaches saturation or needs to be replaced, it can be immediately switched to another neutralization box without interrupting the production process. This helps to improve production efficiency and reduce production costs.

[0017] Optionally, the coating pool includes a plurality of coating boxes fixed side by side on the base, two fourth water washing boxes for cleaning residual coating liquid and a fourth wind cutting box for blowing dry the water washing liquid on the strip. The number of activated coating boxes can be adjusted according to the time required for coating.

[0018] By adopting the above technical solution, the number of coating boxes activated can be adjusted according to the time required for coating, which can reduce unnecessary energy waste and coating solution consumption. When the coating demand is low, the number of coating boxes activated can be reduced, thereby reducing energy consumption and coating solution costs. This flexible coating method helps enterprises achieve the goals of energy conservation, emission reduction, cost reduction and efficiency improvement. When a coating box needs to be maintained or cleaned, the coating box can be turned off and other coating boxes can be enabled to continue working, thereby ensuring the continuity of production. In addition, this design also facilitates operators to carry out daily inspections and maintenance work, ensuring the long-term and stable operation of the coating equipment.

[0019] Optionally, a dyeing box located between the coating box and the fourth washing box is fixedly provided on the base platform, and the dyeing tank is used to hold dyeing liquid.

[0020] By adopting the above technical solution and using the dyeing liquid in the dyeing box to dye the coated strip, the aluminum alloy strip can be made to present a variety of colors, such as black, red, blue, green, etc., thereby greatly enriching its appearance and improving the aesthetics and visual effect of the product.

[0021] Optionally, the coating box includes a box body fixed on a base and a box cover arranged on the box body, one side of the box cover is hinged to an opening edge of an upper side of the box body, an exhaust hole connected to an end of a branch pipe away from a main pipe is provided at an upper portion of a vertical side of the box body, and a handle is provided on the side of the box cover away from the box body.

[0022] By adopting the above technical solution, when the coating equipment is used, the staff can pull the handle to flip the box cover upwards and quickly open the box cover, which is convenient for adjusting the position of the aluminum alloy strip inside the box and inspecting the parts inside the box.

[0023] The lockhole that is formed on the two ends of the support frame is formed on the upper and lower ends of the support frame, and the lockhole that is formed on the two ends of the support frame is formed on the upper and lower ends of the support frame.

[0024] By adopting the above technical solution, when the box cover is rotated downward to block the upper opening of the box cover, the box cover is in a locked state, and the elastic extrusion piece continues to squeeze the locking plate to block the connection between the branch pipe and the box body, thereby reducing the possibility of leakage of the exhausted exhaust gas; when the box cover needs to be opened from the locked state, the handle is pushed in the direction close to the locking protrusion, so that the two locking protrusions slide away from each other along the guiding inclined surface, thereby unlocking the box cover; after the box cover is opened to a certain angle, the handle can be reset, and then the sealing plate re-seals the connection between the branch pipe and the box body under the action of the elastic extrusion piece.

[0025] In the second aspect, the present application provides an automatic coating process for aluminum alloy strips using the following technical solutions:

[0026] An automatic coating process for aluminum alloy strips, using the above-mentioned automatic coating equipment for aluminum alloy strips, includes the following steps: Step 1, placing a material tray wound by the strip to be processed on a feeding mechanism in advance; the supply component supplies the corresponding treatment liquid to the corresponding treatment tank; Step 2, the feeding mechanism feeds the strip into a degreasing tank, a rust removal tank, a neutralization tank, a coating tank and a drying tank in sequence; the recovery component is used to recover the waste gas generated in the degreasing tank, the rust removal tank, the neutralization tank and the coating tank during this process; Step 3, using a winding mechanism to wind up the dried strip.

[0027] By adopting the above technical solution, the automated coating process of the strip is realized, the coating efficiency of the strip is improved, and the needs of mass production are met.

[0028] In summary, this application includes the following beneficial technical effects:

[0029] When the automatic coating equipment is in operation, the material tray is pre-installed on the feeding mechanism, and the corresponding treatment liquid is supplied to the corresponding treatment tank by using the supply component; then the feeding mechanism is used to unwind the strip, and the strip enters the degreasing tank, neutralization tank, coating tank and drying tank in sequence, and the winding mechanism is used to wind up the processed strip after drying; in this process, the waste gas generated in the degreasing tank, rust removal tank, neutralization tank and coating tank is recovered by the recovery component; the automated coating processing of the strip is realized, the coating efficiency of the strip is improved, and the needs of mass production are met. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1It is a schematic diagram of the overall structure of Example 1 of the present application;

[0032] Figure 2 It is a partial structural diagram of the installation and coordination of the recovery component and the supply component in Example 1 of the present application;

[0033] Figure 3 This is a schematic diagram of the structure of the sealing plate installation and coordination in Example 2 of the present application;

[0034] Figure 4 It is a partial cross-sectional structural schematic diagram of the installation and matching of the sealing plate in Example 2 of the present application;

[0035] Figure 5 It is a schematic diagram of the structure of the installation and cooperation of the elastic extrusion part in Example 2 of the present application.

[0036] In the figure, 1, feeding mechanism; 2, winding mechanism; 3, base; 31, recovery assembly; 311, main pipe; 312, branch pipe; 32, supply assembly; 321, supply box; 322, water supply pump; 323, water supply pipe; 324, return pipe; 4, treatment tank; 41, degreasing tank; 411, degreasing tank; 412, first water washing box; 413, first wind shear box; 42, rust removal tank; 421, rust removal box; 422, second water washing box; 423, second wind shear box; 43, neutralization tank; 431, neutralization box; 432, third water washing box; 433, third wind shear box; 44. Coating tank; 441. Coating box; 4411. Box body; 4412. Box cover; 4413. Handle; 4414. Unlocking rod; 44141. Guide slope; 442. Fourth water washing box; 443. Fourth wind cutting box; 444. Dyeing box; 45. Drying tank; 451. Drying box; 5. Sealing plate; 51. Sealing groove; 52. Elastic pad; 53. Connecting rod; 54. Bending rod; 55. Locking rod; 56. Locking protrusion; 561. Guide slope; 6. Elastic extrusion piece; 61. Guide block; 611. Guide through hole; 62. Baffle; 63. Compression spring. DETAILED DESCRIPTION

[0037] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0038] Embodiment 1:

[0039] Reference Figure 1 , an automatic coating equipment for aluminum alloy strips, comprising a feeding mechanism 1, a reaction device and a winding mechanism 2; the reaction device is located between the feeding mechanism 1 and the winding mechanism 2; the reaction device comprises a base 3 and a plurality of treatment pools 4 for processing strips, the plurality of treatment pools 4 are fixedly arranged on the upper side of the base 3 along a straight line direction, and four strip channels (not shown in the figure) are arranged above the base 3 and penetrate all the treatment pools 4 at the same time, that is, four strips can be coated at the same time;

[0040] The plurality of treatment pools 4 are, in sequence, a degreasing pool 41 for removing oil stains from the surface of the strip, a rust removing pool 42 for removing rust from the surface of the strip, a neutralizing pool 43 for neutralizing the rust removing liquid on the strip, a coating pool 44 for coating the surface of the strip, and a drying pool 45 for drying the strip; the degreasing pool 41 is located on the base 3 at the end close to the feeding mechanism 1, and the drying pool 45 is located on the base 3 at the end close to the winding mechanism 2; the feeding mechanism 1 is used to unwind the strip and allow the strip to enter the degreasing pool 41, the neutralizing pool 43, the coating pool 44 and the drying pool 45 in sequence, and the winding mechanism 2 is used to rewind the processed strip.

[0041] Reference Figure 1 , the feeding mechanism 1 and the winding mechanism 2 both follow the standard unwinding and winding design concept, and the core structure includes a vertically configured motor, a support plate tightly mounted on the periphery of the motor output shaft, and a limit rod firmly set in the center of the upper surface of the support plate. During operation, whether it is unwinding or winding, the material tray is properly placed on the support plate and simultaneously sleeved on the limit rod (in particular, the material tray is only sleeved during unwinding, and one end of the material belt is fixedly connected to the periphery of the limit rod during winding). Driven by the motor, the support plate rotates accordingly, thereby efficiently completing the unwinding and winding operations. Since the basic working principles of these mechanisms are already common sense, they will not be described in detail here.

[0042] Reference Figure 1 The degreasing tank 41 includes two degreasing tanks 411 fixedly arranged side by side on the base 3 for carrying degreasing liquid, a first water washing tank 412 for washing the residual degreasing liquid, and a first wind shearing box 413 for drying the water washing liquid on the strip. The degreasing liquid in the degreasing tank 411 adopts a solvent degreasing agent, and the degreasing method adopted is an ultrasonic cleaning method, which will not be described in detail here;

[0043] The washing liquid in the first washing box 412 is ultrapure water. The first wind shear box 413 is provided with air ducts symmetrically arranged on both sides of the strip. The surface of the aluminum alloy strip is dried by spraying high-pressure air. The residual ultrapure water on the strip can be blown dry, reducing the impact of the residual ultrapure water on subsequent treatment processes. The two deoiling tanks 411 are used in rotation. When one deoiling tank 411 is performing deoiling treatment, the other deoiling tank 411 is in a state of standby, maintenance or refilling with deoiling liquid.

[0044] Reference Figure 1The rust removal tank 42 includes two rust removal boxes 421 fixed side by side on the base 3 for carrying rust removal liquid, a second water washing box 422 for cleaning the residual rust removal liquid and a second wind shear box 423 for blowing the water washing liquid on the strip, and the two rust removal boxes 421 are used in rotation; the neutralization tank 43 includes two neutralization boxes 431 fixed side by side on the base 3 for carrying neutralization liquid, a third water washing box 432 for cleaning the residual neutralization liquid and a third wind shear box 433 for blowing the water washing liquid on the strip, and the two neutralization boxes 431 are used in rotation.

[0045] The rust removal liquid in the rust removal box 421 can be alkaline or acidic as needed, which is used to undergo an oxidation-reduction reaction with the rust on the strip, remove the oxide layer and rust on the surface of the strip, make its surface smoother, and facilitate the adhesion of the coating layer; the neutralizing liquid in the neutralizing box 431 is used to neutralize the residual rust removal liquid on the strip to produce a neutralization reaction.

[0046] Reference Figure 1 The coating pool 44 includes four coating boxes 441 fixedly arranged side by side on the base 3, a fourth water washing box 442 for washing residual coating liquid, and a fourth wind shear box 443 for blowing the washing liquid on the strip. The number of coating boxes 441 activated can be adjusted according to the time required for coating; if the strip needs a longer time for coating reaction, more coating boxes 441 are activated to extend the corresponding coating time;

[0047] The second water washing box 422, the third water washing box 432 and the fourth water washing box 442 have the same structure as the first water washing box 412, and are all filled with ultrapure water; the second wind shear box 423, the third wind shear box 433 and the fourth wind shear box 443 have the same structure as the fourth wind shear box 443, and will not be repeated here.

[0048] Reference Figure 1 The base 3 is fixed with a dyeing box 444 located between the coating box 441 and the fourth washing box 442, wherein the dyeing tank is used to hold the dyeing liquid; through the dyeing treatment after coating, the aluminum alloy strip can present a variety of colors, such as black, red, blue, green, etc., thereby greatly enriching its appearance and improving the aesthetics and visual effects of the product. The drying tank 45 is a drying box 451 fixed on the base 3, and the corresponding electric heating tube is installed inside the drying box 451 to heat and dry the aluminum alloy strip after electroplating.

[0049] Reference Figure 1 and Figure 2A recovery component 31 for recovering waste gas generated in the degreasing tank 41, the rust removal tank 42, the neutralization tank 43 and the coating tank 44 is provided on the side of the base 3, wherein the recovery component 31 includes a main pipe 311 with negative pressure inside and a plurality of branch pipes 312 fixed on the main pipe 311, and the plurality of branch pipes 312 are respectively connected with the inside of the degreasing tank 41, the rust removal tank 42, the neutralization tank 43 and the coating tank 44;

[0050] A supply assembly 32 for supplying the required treatment liquid is also provided on the side of the base 3. The supply assembly 32 is composed of multiple groups, which are respectively used to supply degreasing liquid, rust removing liquid, neutralizing liquid, plating liquid and ultrapure water; wherein the supply assembly 32 includes a supply box 321, a water supply pump 322, a water supply pipe 323 and a return pipe 324. The treatment liquid in the supply box 321 is delivered to the corresponding treatment tank 4 through the water supply pump 322. The original treatment liquid in the treatment tank 4 is collected in the supply box 321 through the return pipe 324, which will not be repeated here.

[0051] Reference Figure 2 The coating box 441 specifically includes a box body 4411 fixed on the base 3, and a box cover 4412 covered on the box body 4411, wherein one side of the box cover 4412 is hinged to the edge of the upper opening of the box body 4411, and an exhaust hole (not shown in the figure) connected to the end of the branch pipe 312 away from the main pipe 311 is opened on the upper part of the vertical side of the box body 4411, and a handle 4413 is fixed on the upper side of the box cover 4412;

[0052] The box cover 4412 is made of transparent material, which is convenient for directly observing the reaction situation inside the box body 4411; the staff can pull the handle 4413 to flip the box cover 4412 upwards, and quickly open the box cover 4412 to facilitate adjusting the position of the aluminum alloy strip inside the box body 4411, inspecting the parts inside the box body 4411, etc.

[0053] The de-oiling box 411, rust removal box 421, neutralization box 431 and coating box 441 on the base 3 have the same structure, and all include a box body 4411, a box cover 4412, and a handle 4413. The box body 4411 structures corresponding to the de-oiling box 411, rust removal box 421, neutralization box 431 and coating box 441 are also connected to the corresponding branch pipes 312, which will not be repeated here.

[0054] An automatic coating process for aluminum alloy strips, using the above-mentioned automatic coating equipment for aluminum alloy strips for processing, comprises the following steps:

[0055] Step 1: Place the material tray wound by the strip to be processed on the feeding mechanism 1 in advance; the supply component 32 supplies the corresponding treatment liquid into the corresponding treatment tank 4;

[0056] Step 2, the feeding mechanism 1 feeds the strip into the degreasing tank 41, the rust removal tank 42, the neutralization tank 43, the coating tank 44 and the drying tank 45 in sequence; the recovery component 31 is used to recover the waste gas generated in the degreasing tank 41, the rust removal tank 42, the neutralization tank 43 and the coating tank 44 during this process;

[0057] Step 3: Use the winding mechanism 2 to wind up the dried strip.

[0058] The implementation principle of the embodiment of the present application is:

[0059] When the automatic coating equipment is in operation, the material tray is pre-installed on the feeding mechanism 1, and the corresponding treatment liquid is supplied to the corresponding treatment tank 4 by using the supply component 32; then the feeding mechanism 1 is used to unwind the strip, and the strip is sequentially entered into the degreasing tank 41, the neutralization tank 43, the coating tank 44 and the drying tank 45, and after drying, the processed strip is reeled up by the reeling mechanism 2; in this process, the waste gas generated in the degreasing tank 41, the rust removal tank 42, the neutralization tank 43 and the coating tank 44 is recovered by the recovery component 31.

[0060] Embodiment 2:

[0061] Reference Figure 3 , Figure 4 and Figure 5 The embodiment of the present application is different from the embodiment 1 in that two sealing plates 5 are symmetrically slidably arranged along the vertical direction on the vertical side surface of the box body 4411, and the two sealing plates 5 are symmetrically arranged on the opposite sides of the branch pipe 312. The two opposite side surfaces of the two sealing plates 5 are provided with sealing grooves 51 for the outer periphery of the branch pipe 312 to be inserted, and the inner wall of the sealing groove 51 is fixed with an elastic pad 52 made of rubber material; the outer side surface of the box body 4411 is provided with an elastic extrusion member 6 for driving the two sealing plates 5 to slide toward each other;

[0062] A connecting rod 53 is fixedly arranged on the side surfaces of the two sealing plates 5 that are away from each other in the horizontal direction. The sealing plates 5 can slide back and forth along the length direction of the connecting rod 53. Two bending rods 54 located on opposite sides of the box body 4411 are vertically fixedly arranged at the ends of the two connecting rods 53. A locking rod 55 is fixedly arranged on the ends of the bending rods 54 in the vertical upward direction. A locking protrusion 56 located above the box cover 4412 is fixedly arranged on the upper end of the locking rod 55. A guiding inclined surface 561 is provided on the upper side edge of the locking protrusion 56 for abutting when the box cover 4412 rotates downward; the handle 4413 is slidably arranged on the upper side surface of the box cover 4412. Two unlocking rods 4414 that are in contact with the upper side surface of the box cover 4412 are relatively fixedly arranged on the handle 4413, wherein the edge of the end of the unlocking rod 4414 away from the handle 4413 is provided with a guiding inclined surface 44141;

[0063] When the box cover 4412 rotates downward to block the upper part of the box body 4411, the box cover 4412 slides downward along the guide inclined surface 561, and in this process overcomes the elastic extrusion force of the elastic extrusion member 6 until the box cover 4412 is below the locking protrusion 56. At this time, the upper edge of the box cover 4412 abuts against the bottom side of the locking protrusion 56, that is, the box cover 4412 is in a locked state, and in this state, the elastic extrusion member 6 continues to squeeze the locking plate to block the connection between the branch pipe 312 and the box body 4411;

[0064] When it is necessary to open the box cover 4412, push the handle 4413 in the direction close to the locking protrusion 56, so that the two locking protrusions 56 slide along the guiding inclined surface 44141 in the direction away from each other. In this process, the extrusion force of the elastic extrusion piece 6 is overcome, so that the sealing box slides synchronously in the direction away from each other, thereby unlocking the box cover 4412; after the box cover 4412 is opened to a certain angle, the handle 4413 can be reset, and then the sealing plate 5 re-seals the connection between the branch pipe 312 and the box body 4411.

[0065] Reference Figure 5 A guide block 61 is fixedly provided on the outer surface of the box body 4411, and a guide through hole 611 is opened on the guide block 61 for the connecting rod 53 to pass through. The elastic extrusion member 6 includes a compression spring 63 and a baffle 62 fixedly provided on the outer periphery of the connecting rod 53, wherein the guide block 61 is located on the side of the baffle 62 away from the sealing plate 5, and the two ends of the compression spring 63 are respectively fixedly connected to the side surfaces of the baffle 62 and the guide block 61 that are close to each other; when the sides of the two sealing plates 5 that are close to each other are in abutment, the compression spring 63 is in a compressed state.

[0066] The implementation principle of the embodiment of the present application is:

[0067] When the box cover 4412 rotates downward to block the upper opening of the box cover 4412, the box cover 4412 is in a locked state, and the elastic extrusion member 6 continues to squeeze the locking plate to block the connection between the branch pipe 312 and the box body 4411; when the box cover 4412 needs to be opened from the locked state, the handle 4413 is pushed in the direction close to the locking protrusion 56, so that the two locking protrusions 56 slide away from each other along the guiding inclined surface 44141, thereby unlocking the box cover 4412; after the box cover 4412 is opened to a certain angle, the handle 4413 can be reset, and then the sealing plate 5 re-seals the connection between the branch pipe 312 and the box body 4411 under the action of the elastic extrusion member 6.

[0068] Unless otherwise defined, the terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The "first", "second", "third" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and other similar words do not indicate a quantitative limit, but indicate that there is at least one. "Including" or "comprising" and other similar words mean that the elements or objects appearing in front of "including" or "comprising" cover the elements or objects listed after "including" or "comprising" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0069] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An automatic coating equipment for aluminum alloy strip, characterized in that: The invention comprises a feeding mechanism (1) for unwinding a strip, a reaction device for processing the strip, and a winding mechanism (2) for winding the coated strip; the reaction device is located between the feeding mechanism (1) and the winding mechanism (2); the reaction device comprises a base (3) and a plurality of processing pools (4), and the plurality of processing pools (4) are fixedly arranged on the upper side of the base (3) along a straight line direction; The plurality of treatment tanks (4) are a degreasing tank (41) for removing oil stains from the surface of the strip, a rust removal tank (42) for removing rust from the surface of the strip, a neutralization tank (43) for neutralizing rust removal liquid on the strip, a coating tank (44) for coating the surface of the strip, and a drying tank (45) for drying the strip. A strip passage is provided above the base platform (3) and passes through the degreasing tank (41), the rust removal tank (42), the neutralization tank (43) and the drying tank (45) in sequence. The degreasing pool (41) is located on the end of the base (3) close to the feeding mechanism (1), and the drying pool (45) is located on the end of the base (3) close to the winding mechanism (2); a recovery component (31) for recovering waste gas generated in the treatment pool (4) and a supply component (32) for supplying the treatment liquid required by the corresponding treatment pool (4) are provided on the side of the base (3); The recovery component (31) comprises a main pipe (311) with negative pressure inside and a plurality of branch pipes (312) fixed on the main pipe (311), wherein the plurality of branch pipes (312) are respectively connected to the interior of a degreasing tank (41), a rust removal tank (42), a neutralization tank (43) and a coating tank (44); the coating tank (44) comprises a plurality of coating boxes (441) fixed side by side on a base (3), two fourth water washing boxes (442) for washing residual coating liquid and a fourth wind shear box (443) for drying the water washing liquid on the strip, and the number of coating boxes (441) activated can be adjusted according to the time required for coating; The coating box (441) comprises a box body (4411) fixed on a base (3) and a box cover (4412) covering the box body (4411); one side of the box cover (4412) is hinged to the edge of the upper opening of the box body (4411); an exhaust hole connected to the end of the branch pipe (312) away from the main pipe (311) is provided on the upper part of the vertical side of the box body (4411); and a handle (4413) is provided on the side of the box cover (4412) away from the box body (4411); Two sealing plates (5) are symmetrically slidably disposed on the box body (4411) in the vertical direction and are located on both sides of the branch pipe (312). Sealing grooves (51) for the outer periphery of the branch pipe (312) to be inserted are provided on the opposite side surfaces of the two sealing plates (5), and elastic pads (52) are fixedly disposed on the inner walls of the sealing grooves (51); connecting rods (53) are fixedly disposed in the horizontal direction on the side surfaces of the two sealing plates (5) that are away from each other, and the sealing plates (5) can reciprocate along the length direction of the connecting rods (53); and an elastic extrusion member (6) for driving the two sealing plates (5) to slide toward each other is disposed on the outer side surface of the box body (4411); The ends of the two connecting rods (53) are vertically fixed with bending rods (54) located on two opposite sides of the box body (4411), and the ends of the bending rods (54) are fixed with locking rods (55) in a vertically upward direction, and the upper ends of the locking rods (55) are fixed with locking protrusions (56) located above the box cover (4412), and the upper side edges of the locking protrusions (56) are provided with guiding inclined surfaces (561); The handle (4413) is slidably mounted on the upper side of the box cover (4412); an unlocking rod (4414) is fixedly mounted on the handle (4413) and is in contact with the upper side of the box cover (4412); a guiding inclined surface (44141) is disposed on the end edge of the unlocking rod (4414); and the unlocking rod (4414) can squeeze the locking protrusion (56) as the handle (4413) slides, so that the two sealing plates (5) slide in a direction away from each other.

2. The automatic coating equipment for aluminum alloy strip according to claim 1, characterized in that: The degreasing pool (41) comprises two degreasing tanks (411) fixedly arranged side by side on the base (3) for containing degreasing liquid, a first water washing tank (412) for washing residual degreasing liquid, and a first wind shearing box (413) for drying the water washing liquid on the strip, and the two degreasing tanks (411) are used in rotation.

3. The automatic coating equipment for aluminum alloy strip according to claim 1, characterized in that: The rust removal pool (42) comprises two rust removal boxes (421) fixedly arranged side by side on the base (3) for containing rust removal liquid, a second water washing box (422) for washing residual rust removal liquid, and a second air shear box (423) for drying the water washing liquid on the strip. The two rust removal boxes (421) are used in rotation.

4. The automatic coating equipment for aluminum alloy strip according to claim 1, characterized in that: The neutralization tank (43) comprises two neutralization boxes (431) fixedly arranged side by side on the base (3) for carrying neutralization liquid, a third water washing box (432) for washing residual neutralization liquid, and a third wind shear box (433) for drying the water washing liquid on the strip. The two neutralization boxes (431) are used in rotation.

5. The automatic coating equipment for aluminum alloy strip according to claim 1, characterized in that: A dyeing box (444) is fixedly provided on the base platform (3) and is located between the coating box (441) and the fourth washing box (442). The dyeing box (444) is used to hold dyeing liquid.

6. An automatic coating process for aluminum alloy strip, characterized in that: The automatic coating equipment for aluminum alloy strips according to any one of claims 1 to 5 comprises the following steps: Step 1: placing a material tray formed by winding the strip to be processed on the feeding mechanism (1) in advance; the supply component (32) supplies the corresponding treatment liquid into the corresponding treatment tank (4); Step 2, the feeding mechanism (1) feeds the strip into the degreasing tank (41), the rust removal tank (42), the neutralization tank (43), the coating tank (44) and the drying tank (45) in sequence; the recovery component (31) is used to recover the waste gas generated in the degreasing tank (41), the rust removal tank (42), the neutralization tank (43) and the coating tank (44) during this process; Step 3: Use the winding mechanism (2) to wind up the dried strip.

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