A continuous spraying device for building aluminum alloy formwork

Abstract

The present invention relates to a continuous spraying device for building aluminum alloy templates, which includes a spraying box, a conveying mechanism arranged in the inner cavity of the spraying box for conveying aluminum templates, a spraying mechanism for spraying aluminum templates, and a positioning mechanism for positioning aluminum templates. The conveying mechanism includes a guiding frame that penetrates the front and back of the spraying box. The present invention relates to the technical field of aluminum alloy template processing. This continuous spraying device for building aluminum alloy templates has adsorption-type synchronous positioning: through the synchronous movement of vacuum suction cups and conveyor belts, the bottom surface of the aluminum template is adsorbed and the front and rear gaps are eliminated, ensuring that the templates are closely arranged and avoiding coating defects caused by warping or misalignment during spraying. There is also two-way dynamic constraint: the positioning mechanisms symmetrically arranged on both sides cooperate with the abutting belts to friction-seal the sides of the templates, achieving left and right limits and preventing shaking during conveying, thereby improving the accuracy of the spraying path.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum alloy template processing, in particular to a continuous spraying device for a building aluminum alloy template. Background Art

[0002] In the continuous spraying process of building aluminum alloy formwork, the existing technology generally has the following problems:

[0003] Insufficient spraying efficiency and quality: The traditional conveying mechanism lacks effective positioning function. The aluminum template is prone to front and rear gaps or left and right deviations during the conveying process, resulting in uneven spraying and missing edges. The warping of adjacent aluminum templates can easily cause powder accumulation or coating defects.

[0004] Powder waste and environmental pollution: During spraying, powder easily overflows from the gap of aluminum template to the conveying mechanism or external environment, which not only wastes materials, but also increases the difficulty of subsequent cleaning and affects the health of operators.

[0005] Serious equipment wear and tear: In order to meet the needs of intermittent spraying, the nozzle needs to be started and stopped frequently. Long-term use can easily lead to nozzle blockage or damage, shortening the life of the equipment.

[0006] Separation of curing process: Some devices need to transfer the sprayed template to a separate curing area, resulting in discontinuity and low efficiency of the production line process.

[0007] Although existing technologies attempt to achieve positioning through mechanical clamping or fixed baffles, it is difficult to take into account both synchronization and sealing during dynamic transportation. An efficient integrated solution that integrates transportation, positioning, spraying and curing is urgently needed. Summary of the invention

[0008] In view of the deficiencies in the prior art, the present invention provides a continuous spraying device for building aluminum alloy templates, which solves the above-mentioned problems.

[0009] To achieve the above objectives, the present invention is implemented through the following technical solutions: a continuous spraying device for building aluminum alloy templates, comprising a spray box and a conveying mechanism arranged in the inner cavity of the spray box for conveying the aluminum template, a spraying mechanism for spraying the aluminum template and a positioning mechanism for positioning the aluminum template, the conveying mechanism comprising a guide frame running through the front and rear of the spray box, the inner cavity of the guide frame is rotatably connected with a conveying roller for conveying the aluminum template;

[0010] The positioning mechanism comprises a driving wheel rotatably arranged in the inner cavity of the spray box, the surface of the driving wheel is connected to a driving belt, and the surface of the driving belt is fixedly connected to a plurality of adsorption structures;

[0011] The adsorption structure includes a fixed pipeline fixed on the surface of the conveyor belt. The fixed pipeline is communicated with a vacuum pump group through a communication valve. The top end of the fixed pipeline is communicated with a telescopic pipeline. A lifting cylinder sleeved on the surface of the telescopic pipeline is slidably connected to the surface of the fixed pipeline. The top end of the telescopic pipeline is communicated with a vacuum suction cup. A return spring is sleeved on the surface of the telescopic pipeline. The two ends of the return spring are respectively fixedly connected to the top end of the lifting cylinder and the bottom of the vacuum suction cup. A guide rod is fixedly connected to the surface of the lifting cylinder. A guide rail abutted against the guide rod is fixedly connected to the inner cavity of the spraying box. When in use, the aluminum formwork is conveyed by the conveying roller in the guide frame. The conveyed aluminum formwork enters above the two positioning mechanisms. At this time, the driving wheel rotates to drive the conveyor belt to rotate. The conveying speed of the conveyor belt is the same as the conveying speed of the aluminum formwork on the conveying roller. The rotation of the conveyor belt drives the adsorption structure to rotate. The lower adsorption structure rotates to the upper part. At this time, the guide rod abuts against the side inclined surface of the guide rail. During the movement, it continuously moves upward, driving the vacuum suction cup to rise. Then the vacuum suction cup moves upward to pull the telescopic pipeline to rise and abut against the lower part of the aluminum formwork. At this time, the aluminum formwork squeezes the top of the vacuum suction cup, squeezing the return spring to move downward until the vacuum suction cup completely rotates to the horizontal position and the return spring is squeezed to the maximum extent. The vacuum suction cup drives the ejector rod to move downward. The ejector rod presses against the contact switch. The contact switch is connected to the communication valve through the plc. The communication valve is opened. At this time, the vacuum suction cup outputs negative pressure to the aluminum formwork to adsorb it, adsorbing multiple aluminum formworks tightly together, preventing warping caused by the front and back extrusion of the aluminum formwork and affecting the spraying effect, being able to tightly adhere the aluminum formworks front and back without gaps to ensure the conveying effect, and cooperating with the friction seal of the aluminum formwork on both sides through the abutting belt. While moving forward synchronously with it for sealing to prevent the powder above from escaping to the lower part of the aluminum formwork, it can also play a positioning function for the aluminum formwork, preventing it from shaking left and right, avoiding the problem of large gaps between aluminum formworks when using the nozzle, not causing waste of powder coating, and the nozzle does not need to be opened and closed frequently, resulting in a shortened service life of the nozzle, and effectively preventing the spraying powder from entering the conveying mechanism and effectively sealing.

[0012] As a further solution of the present invention: There are two positioning mechanisms, which are symmetrically arranged on both sides of the conveying mechanism. They are conveyed through the conveying mechanism, and then the positioning mechanisms on both sides perform positioning to make the conveying stable.

[0013] As a further solution of the present invention: The spraying mechanism includes a wrapping cover fixed in the inner cavity of the spraying box. A nozzle is arranged in the inner cavity of the wrapping cover. The two sides of the wrapping cover are concave to wrap the two ends of the aluminum formwork. The aluminum formwork is wrapped by the wrapping cover to prevent the powder sprayed by the internal nozzle from escaping everywhere.

[0014] As a further solution of the present invention: An electric heating component is disposed in the inner cavity behind the nozzle of the wrapping cover, and the aluminum template after spraying by the nozzle is cured through the electric heating component to make it solidify.

[0015] As a further solution of the present invention: A plurality of power rollers are rotatably connected to both sides of the inner cavity of the wrapping cover. A contact belt is drivingly connected to the surface of the power rollers. The side of the contact belt is in contact with the side of the aluminum template. The two sides of the aluminum template are frictionally sealed through the contact belt, and while moving forward synchronously with it to prevent the powder above from escaping below the aluminum template, it can play a positioning function for the aluminum template, so that it will not shake left and right.

[0016] As a further solution of the present invention: A contact switch is fixedly connected to the surface of the lifting cylinder. A top rod located above the contact switch is fixedly connected to the side of the vacuum suction cup. When in use, when the vacuum suction cup presses below the aluminum template, under pressure, the vacuum suction cup presses the return spring and descends, driving the top rod to press against the contact switch. The contact switch is connected to the communication valve through a PLC to open the communication valve. At this time, the vacuum suction cup outputs negative pressure to the aluminum template to adsorb it.

[0017] As a further solution of the present invention: The aluminum template is conveyed in the middle of the conveying rollers, and two transmission belts are evenly arranged on both sides below the aluminum template for stable conveying.

[0018] As a further solution of the present invention: Both ends of the guide rail are provided with downwardly bent inclined surfaces. By supporting the guide rod through the guide rail, the height of the vacuum suction cup can be effectively adjusted.

[0019] The present invention has the following beneficial effects compared with the prior art:

[0020] Precise positioning and seamless conveying:

[0021] Adsorption type synchronous positioning: Through the synchronous movement of the vacuum suction cup and the transmission belt, the bottom surface of the aluminum template is adsorbed and the front and rear gaps are eliminated, ensuring that the templates are closely arranged and avoiding coating defects caused by warping or misalignment during spraying.

[0022] Two-way dynamic constraint: The positioning mechanisms symmetrically arranged on both sides cooperate with the contact belt to frictionally seal the side of the template, realizing left and right limit, preventing shaking during conveying, and improving the accuracy of the spraying path.

[0023] Maximization of powder utilization rate:

[0024] Wrapped spraying environment: The wrapping cover and the contact belt form a closed cavity, effectively blocking the overflow of powder and reducing material waste.

[0025] Intelligent control of the spray head: The contact switch triggers the connection valve to open the spray head only when the adsorption is in place, avoiding empty spraying or misspraying, and further reducing powder loss.

[0026] Significant extension of equipment life:

[0027] Continuous and stable operation of the spray head: The synchronous adsorption and spraying mechanism enables the spray head to operate without frequent start and stop, reducing mechanical wear and thermal stress, and extending the service life of the spray head by more than 30%.

[0028] Anti-pollution design: The sealed structure prevents powder from entering moving parts such as conveyor rollers, reducing the equipment maintenance frequency.

[0029] Process integration and efficiency improvement:

[0030] Online curing function: Electric heating components are integrated in the wrapping cover to achieve immediate curing after spraying, shortening the production cycle and avoiding coating damage caused by secondary handling.

[0031] Adaptive adjustment ability: The reset spring cooperates with the inclined plane of the guide rail to automatically adjust the height of the vacuum suction cup according to the template thickness, making it compatible with different specifications of aluminum templates. Description of the drawings

[0032] Figure 1 is a structural cross-sectional view of the present invention;

[0033] Figure 2 is a structural side view of the present invention;

[0034] Figure 3 is the present invention Figure 1 a partial enlarged view of part A in;

[0035] Figure 4 is the present invention Figure 2 a partial enlarged view of part B in.

[0036] In the figure: 1, spraying box; 2, guide frame; 3, conveyor roller; 4, driving wheel; 5, transmission belt; 6, fixed pipeline; 7, lifting cylinder; 8, telescopic pipeline; 9, vacuum suction cup; 10, ejector rod; 11, contact switch; 12, guide rail; 13, inclined plane; 14, connection valve; 15, guide rod; 16, reset spring; 17, aluminum template; 18, wrapping cover; 19, abutting belt; 20, spray head. Detailed implementation manners

[0037] To further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following, in conjunction with the drawings and preferred embodiments, details the specific implementation manners, structures, features and their effects of the present invention as follows.

[0038] Please refer to Figures 1-4The present invention provides a technical solution: a continuous spraying device for building aluminum alloy templates, comprising a spraying box 1 and a conveying mechanism arranged in the inner cavity of the spraying box 1 for conveying an aluminum template 17, a spraying mechanism for spraying the aluminum template 17, and a positioning mechanism for positioning the aluminum template 17, the conveying mechanism comprising a guide frame 2 running through the front and rear of the spraying box 1, and the inner cavity of the guide frame 2 is rotatably connected with a conveying roller 3 for conveying the aluminum template 17;

[0039] The positioning mechanism includes a driving wheel 4 rotatably arranged in the inner cavity of the spray box 1, the surface of the driving wheel 4 is connected to a driving belt 5, and the surface of the driving belt 5 is fixedly connected to a plurality of adsorption structures;

[0040] The adsorption structure includes a fixed pipeline 6 fixed on the surface of the conveyor belt 5. The fixed pipeline 6 is connected to a vacuum pump group through a connecting valve 14. The top of the fixed pipeline 6 is connected to a telescopic pipeline 8. A lifting cylinder 7 sleeved on the surface of the telescopic pipeline 8 is slidably connected to the surface of the fixed pipeline 6. The top of the telescopic pipeline 8 is connected to a vacuum suction cup 9. A return spring 16 is sleeved on the surface of the telescopic pipeline 8. The two ends of the return spring 16 are respectively fixedly connected to the top of the lifting cylinder 7 and the bottom of the vacuum suction cup 9. A guide rod 15 is fixedly connected to the surface of the lifting cylinder 7. A guide rail 12 abutted against the guide rod 15 is fixedly connected inside the spraying box 1. When in use, the aluminum formwork 17 is conveyed by the conveying rollers 3 in the guide frame 2. The conveyed aluminum formwork 17 enters above the two positioning mechanisms. At this time, the driving wheel 4 rotates to drive the conveyor belt 5 to rotate. The conveying speed of the conveyor belt 5 is the same as the conveying speed of the aluminum formwork 17 on the conveying rollers 3. The rotation of the conveyor belt 5 drives the adsorption structure to rotate. The lower adsorption structure rotates to the upper part. At this time, the guide rod 15 abuts against the side inclined surface 13 of the guide rail 12 and continuously moves upward during the movement, driving the vacuum suction cup 9 to rise. Then the vacuum suction cup 9 moves upward to pull the telescopic pipeline 8 to rise and abut against the lower part of the aluminum formwork 17. At this time, the aluminum formwork 17 squeezes the top of the vacuum suction cup 9, squeezing the return spring 16 to move downward until the vacuum suction cup 9 completely rotates to the horizontal position and the return spring 16 is squeezed to the maximum extent. The vacuum suction cup 9 drives the ejector rod 10 to move downward. The ejector rod 10 presses against the contact switch 11. The contact switch 11 is connected to the connecting valve 14 through a plc. The connecting valve 14 is opened. At this time, the vacuum suction cup 9 outputs negative pressure to the aluminum formwork 17 to adsorb it, tightly adsorbing multiple aluminum formworks 17 together, preventing warping caused by the front and back extrusion of the aluminum formwork 17 and affecting the spraying effect. It can closely adhere the aluminum formwork 17 front and back without gaps to ensure the conveying effect. Cooperating with the friction sealing of both sides of the aluminum formwork 17 through the abutting belt 19, while moving forward synchronously with it for sealing to prevent the powder above from escaping to the lower part of the aluminum formwork 17, it can also play a positioning function for the aluminum formwork 17, making it not shake left and right, avoiding the problem of large gaps between the aluminum formworks 17 when using the spray head 20, not causing waste of powder coating, and the spray head 20 does not need to be opened and closed frequently, thus reducing the service life of the spray head 20, and effectively preventing the sprayed powder from entering the conveying mechanism and effectively sealing it.

[0041] There are two positioning mechanisms, which are symmetrically arranged on both sides of the conveying mechanism. They are conveyed through the conveying mechanism, and then the two positioning mechanisms on both sides perform positioning to enable stable conveying.

[0042] The spraying mechanism includes a wrapping cover 18 fixed inside the spraying box 1. A spray head 20 is arranged inside the wrapping cover 18. The two sides of the wrapping cover 18 are concave to wrap the two ends of the aluminum formwork 17. The aluminum formwork 17 is wrapped by the wrapping cover 18 to prevent the powder sprayed by the internal spray head 20 from spilling everywhere.

[0043] The inner cavity of the wrapping cover 18 behind the nozzle 20 is equipped with an electric heating component, and the aluminum template 17 sprayed by the nozzle 20 is cured by the electric heating component to solidify it.

[0044] There are multiple power rollers rotatably connected on both sides of the inner cavity of the wrapping cover 18, and the surface of the power roller is transmission-connected with an abutment belt 19. The side of the abutment belt 19 abuts against the side of the aluminum template 17. The abutment belt 19 performs friction sealing on both sides of the aluminum template 17, and while moving forward synchronously with it to seal and prevent the upper powder from escaping to the bottom of the aluminum template 17, it can also play a positioning function for the aluminum template 17 so that it will not shake left and right.

[0045] A contact switch 11 is fixedly connected to the surface of the lifting cylinder 7, and a push rod 10 located above the contact switch 11 is fixedly connected to the side of the vacuum suction cup 9. When the vacuum suction cup 9 is squeezed under the aluminum template 17 during use, the vacuum suction cup 9 squeezes the reset spring 16 to descend under pressure, driving the push rod 10 to squeeze the contact switch 11. The contact switch 11 is connected to the connecting valve 14 through the PLC, and the connecting valve 14 is opened. At this time, the vacuum suction cup 9 outputs negative pressure to the aluminum template 17 to adsorb it.

[0046] The aluminum template 17 is transported in the middle of the conveying roller 3, and two transmission belts 5 are evenly arranged on both sides below the aluminum template 17 to ensure stable transportation.

[0047] Both ends of the guide rail 12 are provided with downwardly bent inclined surfaces 13 , and the guide rail 12 supports the guide rod 15 , so that the height of the vacuum suction cup 9 can be effectively adjusted.

[0048] Precise positioning and seamless transportation:

[0049] Adsorption type synchronous positioning: Through the synchronous movement of the vacuum suction cup 9 and the transmission belt 5, the bottom surface of the aluminum template 17 is adsorbed and the front and rear gaps are eliminated to ensure that the templates are closely arranged and avoid coating defects caused by warping or misalignment during spraying.

[0050] Bidirectional dynamic constraint: The positioning mechanisms symmetrically arranged on both sides cooperate with the abutment belts 19 to frictionally seal the sides of the template to achieve left and right limit, prevent shaking during transportation, and improve the accuracy of the spray path.

[0051] Maximize powder utilization:

[0052] Wrap-type spraying environment: The wrapping cover 18 and the abutment belt 19 form a closed cavity, which effectively blocks the powder from spilling out and reduces material waste, and is expected to save 15% to 20% of the paint.

[0053] Intelligent control of the spray head: The contact switch 11 triggers the connection valve 14 to open the spray head 20 only when the adsorption is in place, avoiding empty spraying or mis-spraying, and further reducing powder loss.

[0054] Significant extension of equipment life:

[0055] Continuous and stable operation of the spray head: The synchronous adsorption and spraying mechanism enables the spray head to operate without frequent start-stop, reducing mechanical wear and thermal stress, and extending the service life of the spray head by more than 30%.

[0056] Anti-pollution design: The sealed structure prevents powder from entering moving parts such as the conveying roller 3, reducing the equipment maintenance frequency.

[0057] Process integration and efficiency improvement:

[0058] On-line curing function: An electric heating component is integrated inside the wrapping cover 18 to achieve immediate curing after spraying, shortening the production cycle and avoiding coating damage caused by secondary handling.

[0059] Adaptive adjustment ability: The reset spring 16 cooperates with the inclined plane 13 of the guide rail 12 to automatically adjust the height of the vacuum suction cup 9 according to the template thickness, being compatible with different specifications of aluminum templates.

[0060] Aluminum template conveying stage:

[0061] The aluminum template 17 is horizontally fed into the spraying box 1 through the conveying roller 3 inside the guide frame 2.

[0062] The driving wheels 4 on both sides drive the conveyor belt 5 to run synchronously at the same linear speed as the conveying roller 3, ensuring the synchronization of the adsorption structure and the template movement.

[0063] Vacuum adsorption positioning stage:

[0064] When the conveyor belt 5 rotates, the guide rod 15 of the adsorption structure rises along the inclined plane 13 of the guide rail 12, pushing the lifting cylinder 7 upward to make the vacuum suction cup 9 contact the bottom surface of the template.

[0065] The template pressure compresses the reset spring 16, and the ejector rod 10 triggers the contact switch 11, the connection valve 14 opens, and the vacuum pump group evacuates the vacuum suction cup 9 through the fixed pipeline 6 and the telescopic pipeline 8 to adsorb and fix the template.

[0066] Spraying and curing stage:

[0067] The positioned template enters the wrapping cover 18, the spray head 20 evenly sprays powder on its surface, and the abutting belts 19 on both sides synchronously friction-seal to prevent powder leakage.

[0068] After spraying, the electric heating component at the rear section of the wrapping cover 18 cures the coating thermally to form a continuous processing flow.

[0069] Reset and circulation stage:

[0070] After the adsorption structure is separated from the spraying area along with the conveyor belt 5, the guide rod 15 descends along the downward inclined section of the guide rail 12, the return spring 16 pushes the vacuum suction cup 9 to reset, and the communication valve 14 closes to release the vacuum, completing a single cycle.

[0071] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the above-disclosed technical content within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A continuous spraying device for building aluminum alloy templates, comprising a spraying box (1) and a conveying mechanism arranged in the inner cavity of the spraying box (1) for conveying the aluminum template (17), a spraying mechanism for spraying the aluminum template (17) and a positioning mechanism for positioning the aluminum template (17), characterized in that: The conveying mechanism comprises a guide frame (2) that passes through the front and rear of the spray box (1), and the inner cavity of the guide frame (2) is rotatably connected to a conveying roller (3) for conveying the aluminum template (17); The positioning mechanism comprises a driving wheel (4) rotatably arranged in the inner cavity of the spray box (1), the surface of the driving wheel (4) being transmission-connected to a driving belt (5), and the surface of the driving belt (5) being fixedly connected to a plurality of adsorption structures; The adsorption structure comprises a fixed pipe (6) fixed on the surface of a transmission belt (5), the fixed pipe (6) being connected to a vacuum pump group through a connecting valve (14), the top end of the fixed pipe (6) being connected to a telescopic pipe (8), the surface of the fixed pipe (6) being slidably connected to a lifting cylinder (7) sleeved on the surface of the telescopic pipe (8), the top end of the telescopic pipe (8) being connected to a vacuum suction cup (9), the surface of the telescopic pipe (8) being sleeved with a return spring (16), the two ends of the return spring (16) being respectively fixedly connected to the top end of the lifting cylinder (7) and the bottom end of the vacuum suction cup (9), the surface of the lifting cylinder (7) being fixedly connected to a guide rod (15), the inner cavity of the spray box (1) being fixedly connected to a guide rail (12) abutting against the guide rod (15), the guide rail (12) being Both ends of the rail (12) are provided with downwardly bent inclined surfaces (13); a contact switch (11) is fixedly connected to the surface of the lifting cylinder (7); a push rod (10) located above the contact switch (11) is fixedly connected to the side of the vacuum suction cup (9); the contact switch (11) is connected to a connecting valve (14) through a PLC; two positioning mechanisms are provided and are symmetrically arranged on both sides of the conveying mechanism; the aluminum template (17) is conveyed in the middle of the conveying roller (3); and two transmission belts (5) are evenly arranged on both sides below the aluminum template (17); the driving wheels (4) on both sides drive the transmission belt (5) to operate synchronously at the same linear speed as the conveying roller (3); and the vacuum suction cup (9) and the transmission belt (5) are synchronously moved to adsorb the bottom surface of the aluminum template (17) and eliminate the front and rear gaps.

2. A continuous spraying device for building aluminum alloy formwork according to claim 1, characterized in that: The spraying mechanism comprises a wrapping cover (18) fixed in the inner cavity of a spray box (1), a nozzle (20) being built in the inner cavity of the wrapping cover (18), an electric heating component being built in the inner cavity of the wrapping cover (18) located behind the nozzle (20), a plurality of power rollers being rotatably connected to both sides of the inner cavity of the wrapping cover (18), a contact belt (19) being transmission-connected to the surface of the power roller, and a side edge of the contact belt (19) being in contact with a side edge of an aluminum template (17).

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