Continuous spraying device for building aluminum alloy formwork

Abstract

The invention relates to a building aluminum alloy formwork continuous spraying device which comprises a spraying box, a conveying mechanism arranged in an inner cavity of the spraying box and used for conveying an aluminum formwork, a spraying mechanism used for spraying the aluminum formwork and a positioning mechanism used for positioning the aluminum formwork. The invention relates to the technical field of aluminum alloy formwork machining. According to the continuous spraying device for the building aluminum alloy formworks, adsorption type synchronous positioning is achieved, through synchronous movement of the vacuum suction cups and the transmission belt, the bottom faces of the aluminum formworks are adsorbed, front-back gaps are eliminated, it is ensured that the formworks are tightly arranged, and coating defects caused by warping or dislocation in the spraying process are avoided; the positioning mechanisms symmetrically arranged on the two sides are matched with the abutting belts to conduct friction sealing on the side edges of the formwork, left-right limiting is achieved, shaking in the conveying process is prevented, and the spraying path precision is improved.

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: 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.

[0003] 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.

[0004] 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.

[0005] 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.

[0006] 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

[0007] 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.

[0008] 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; 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; The adsorption structure includes a fixed pipe fixed on the surface of the transmission belt, the fixed pipe is connected to the vacuum pump group through a connecting valve, the top of the fixed pipe is connected to a telescopic pipe, the surface of the fixed pipe is slidably connected to a lifting cylinder sleeved on the surface of the telescopic pipe, the top of the telescopic pipe is connected to a vacuum suction cup, the surface of the telescopic pipe is sleeved with a reset spring, the two ends of the reset spring are respectively fixedly connected to the top of the lifting cylinder and the bottom of the vacuum suction cup, the surface of the lifting cylinder is fixedly connected to a guide rod, the inner cavity of the spray box is fixedly connected to a guide rail abutting the guide rod, when in use, the aluminum template is transported by the conveying roller in the guide frame, and the conveyed aluminum template enters above the two positioning mechanisms, at this time, the driving wheel rotates to drive the transmission belt to rotate, the transmission speed of the transmission belt is the same as the conveying speed of the aluminum template on the conveying roller, the rotation of the transmission belt drives the adsorption structure to rotate, and the lower adsorption structure rotates to the top, at this time, the guide rod abuts against the side inclined surface of the guide rail, and continuously moves upward during movement, driving the vacuum suction cup to rise, and then the vacuum suction cup moves upward to pull the telescopic pipe to rise and abut At the bottom of the aluminum template, the aluminum template squeezes the top of the vacuum suction cup, and the extrusion reset spring moves downward until the vacuum suction cup is completely rotated to the horizontal. At this time, the reset spring is squeezed to the maximum extent, and the vacuum suction cup drives the push rod to move downward. The push rod squeezes the contact switch. The contact switch is connected to the connecting valve through the PLC, and the connecting valve is opened. At this time, the vacuum suction cup outputs negative pressure to the aluminum template, adsorbs it, and adsorbs multiple aluminum templates tightly together to prevent warping caused by the front and back extrusion of the aluminum template, which affects the spraying effect. The aluminum template can be tightly attached to the front and back without leaving a gap to ensure the conveying effect, and the friction seal is performed on both sides of the aluminum template through the abutment belt. While moving forward synchronously with it to seal, prevent the upper powder from escaping to the bottom of the aluminum template. At the same time, it can play a positioning function for the aluminum template, so that it will not shake left and right, avoiding the problem of large gaps between the aluminum templates when using nozzles, and will not cause waste of powder coating. The nozzle does not need to be opened and closed from time to time, which shortens the service life of the nozzle, and can effectively prevent the spray powder from entering the conveying mechanism and effectively seal.

[0009] As a further solution of the present invention: two positioning mechanisms are provided and are symmetrically arranged on both sides of the conveying mechanism. The conveying mechanism is used for conveying, and then the positioning mechanisms on both sides perform positioning, so that the conveying is carried out stably.

[0010] As a further solution of the present invention: the spraying mechanism includes a wrapping cover fixed in the inner cavity of the spray box, the inner cavity of the wrapping cover has a built-in nozzle, the two sides of the wrapping cover are concave to wrap the two ends of the aluminum template, and the aluminum template is wrapped by the wrapping cover to prevent powder sprayed from the internal nozzle from escaping.

[0011] As a further solution of the present invention: the inner cavity of the wrapping cover behind the nozzle is equipped with an electric heating component, and the aluminum template sprayed by the nozzle is cured by the electric heating component to solidify it.

[0012] As a further solution of the present invention: multiple power rollers are rotatably connected to both sides of the inner cavity of the wrapping cover, and the surfaces of the power rollers are transmission-connected with abutment belts. The sides of the abutment belts abut against the sides of the aluminum template, and the abutment belts are frictionally sealed on both sides of the aluminum template. While moving forward synchronously with the abutment belts to seal and prevent the upper powder from escaping to the bottom of the aluminum template, the abutment belts can also play a positioning function for the aluminum template so that it will not shake left and right.

[0013] As a further solution of the present invention: a contact switch is fixedly connected to the surface of the lifting cylinder, and a push rod located above the contact switch is fixedly connected to the side of the vacuum suction cup. When the vacuum suction cup is squeezed under the aluminum template during use, the vacuum suction cup squeezes the reset spring down under pressure, driving the push rod to squeeze the contact switch. The contact switch is connected to the connecting valve through the PLC, and the connecting valve is opened. At this time, the vacuum suction cup outputs negative pressure to the aluminum template to adsorb it.

[0014] As a further solution of the present invention: the aluminum template is transported in the middle of the conveying roller, and two transmission belts are evenly arranged on both sides below the aluminum template to ensure stable transportation.

[0015] As a further solution of the present invention: both ends of the guide rail are provided with downwardly bent inclined surfaces, and the guide rail is used to support the guide rod, so that the height of the vacuum suction cup can be effectively adjusted.

[0016] Compared with the prior art, the present invention has the following beneficial effects: Precise positioning and seamless transportation: 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 to ensure that the templates are closely arranged and avoid coating defects caused by warping or misalignment during spraying.

[0017] Bidirectional dynamic constraint: The positioning mechanisms symmetrically arranged on both sides cooperate with the abutment belt 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.

[0018] Maximize powder utilization: Wrap-around spraying environment: The wrap-around cover and abutment belt form a closed cavity, effectively blocking powder spillage and reducing material waste.

[0019] Intelligent control of printhead: The contact switch triggers the connecting valve to open the printhead only when it is adsorbed in place, avoiding empty spraying or mis-spraying, and further reducing powder loss.

[0020] Equipment life is significantly extended: The nozzle works continuously and stably: the synchronous adsorption and spraying mechanism eliminates the need for frequent start and stop of the nozzle, reduces mechanical wear and thermal stress, and extends the service life of the nozzle by more than 30%.

[0021] Anti-pollution design: The sealing structure prevents powder from entering the moving parts such as the conveyor roller, reducing the frequency of equipment maintenance.

[0022] Process integration and efficiency improvement: Online curing function: The electric heating component is integrated in the package cover to achieve instant curing after spraying, shorten the production cycle, and avoid coating damage caused by secondary handling.

[0023] Adaptive adjustment capability: The reset spring cooperates with the inclined surface of the guide rail to automatically adjust the height of the vacuum suction cup according to the thickness of the template, and is compatible with aluminum templates of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural cross-sectional view of the present invention; Figure 2 It is a structural side view of the present invention; Figure 3 For the present invention Figure 1 A partial enlarged view of the middle A; Figure 4 For the present invention Figure 2 A partial enlarged view of point B in the middle.

[0025] In the figure: 1. Spray box; 2. Guide frame; 3. Conveyor roller; 4. Driving wheel; 5. Transmission belt; 6. Fixed pipe; 7. Lifting cylinder; 8. Telescopic pipe; 9. Vacuum suction cup; 10. Push rod; 11. Contact switch; 12. Guide rail; 13. Inclined surface; 14. Connecting valve; 15. Guide rod; 16. Reset spring; 17. Aluminum template; 18. Wrapping cover; 19. Abutment belt; 20. Spray head. DETAILED DESCRIPTION

[0026] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0027] See also Figure 1-4 The 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; 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; The adsorption structure includes a fixed pipe 6 fixed on the surface of the transmission belt 5, the fixed pipe 6 is connected to the vacuum pump group through a connecting valve 14, the top of the fixed pipe 6 is connected to a telescopic pipe 8, the surface of the fixed pipe 6 is slidably connected to a lifting cylinder 7 sleeved on the surface of the telescopic pipe 8, the top of the telescopic pipe 8 is connected to a vacuum suction cup 9, the surface of the telescopic pipe 8 is sleeved with a return spring 16, 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, the surface of the lifting cylinder 7 is fixedly connected to a guide rod 15, and the inner cavity of the spray box 1 is fixedly connected to a guide rail 1 abutting against the guide rod 15 2. When in use, the aluminum template 17 is transported by the conveying roller 3 in the guide frame 2. The conveyed aluminum template 17 enters the top of the two positioning mechanisms. At this time, the driving wheel 4 rotates to drive the transmission belt 5 to rotate. The transmission speed of the transmission belt 5 is the same as the conveying speed of the aluminum template 17 on the conveying roller 3. The rotation of the transmission belt 5 drives the adsorption structure to rotate. The adsorption structure below rotates to the top. At this time, the guide rod 15 abuts against the side slope 13 of the guide rail 12, and continuously moves upward during the movement, driving the vacuum suction cup 9 to rise, and then the vacuum suction cup 9 moves upward to pull the telescopic pipe 8 to rise and abut against the aluminum template 17. At this time, the aluminum template 17 squeezes the top of the vacuum suction cup 9, squeezing the reset spring 16 downward until the vacuum suction cup 9 is completely rotated to the horizontal. At this time, the reset spring 16 is squeezed to the maximum extent, and the vacuum suction cup 9 drives the push rod 10 to move downward. The push rod 10 squeezes the contact switch 11. The contact switch 11 is connected to the connecting valve 14 through the plc. 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, and multiple aluminum templates 17 are tightly adsorbed together to prevent warping caused by the front and back squeezing of the aluminum template 17, which affects the spraying effect. The plate 17 is tightly attached to the front and back without leaving any gap to ensure the conveying effect, and the abutment belt 19 is used to frictionally seal the two sides of the aluminum template 17. 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, avoiding the problem of large gaps between the aluminum templates 17 when using the nozzle 20, and will not cause waste of powder coating. The nozzle 20 does not need to be opened and closed from time to time, which will shorten the service life of the nozzle 20, and can effectively prevent the spray powder from entering the conveying mechanism, effectively sealing.

[0028] Two positioning mechanisms are provided, and are symmetrically arranged on both sides of the conveying mechanism. The conveying mechanism is used for conveying, and then the positioning mechanisms on both sides are used for positioning, so that the conveying can be carried out stably.

[0029] The spraying mechanism includes a wrapping cover 18 fixed in the inner cavity of the spray box 1, and a nozzle 20 is built in the inner cavity of the wrapping cover 18. The two sides of the wrapping cover 18 are concave to wrap the two ends of the aluminum template 17. The aluminum template 17 is wrapped by the wrapping cover 18 to prevent the powder sprayed by the internal nozzle 20 from scattering everywhere.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] Precise positioning and seamless transportation: 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.

[0036] 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.

[0037] Maximize powder utilization: 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.

[0038] Intelligent control of the nozzle: the contact switch 11 triggers the connecting valve 14 to open the nozzle 20 only when it is adsorbed in place, avoiding empty spraying or mis-spraying, and further reducing powder loss.

[0039] Equipment life is significantly extended: The nozzle works continuously and stably: the synchronous adsorption and spraying mechanism eliminates the need for frequent start and stop of the nozzle, reduces mechanical wear and thermal stress, and extends the service life of the nozzle by more than 30%.

[0040] Anti-pollution design: The sealing structure prevents powder from entering the moving parts such as the conveying roller 3, reducing the frequency of equipment maintenance.

[0041] Process integration and efficiency improvement: Online curing function: The electric heating component is integrated in the package cover 18 to achieve instant curing after spraying, shorten the production cycle, and avoid coating damage caused by secondary handling.

[0042] Adaptive adjustment capability: The reset spring 16 cooperates with the inclined surface 13 of the guide rail 12 to automatically adjust the height of the vacuum suction cup 9 according to the thickness of the template, and is compatible with aluminum templates of different specifications.

[0043] Aluminum formwork conveying stage: The aluminum template 17 is horizontally fed into the spray box 1 via the conveying rollers 3 in the guide frame 2 .

[0044] The driving wheels 4 on both sides drive the transmission belt 5 to run synchronously at the same linear speed as the conveying roller 3, ensuring that the adsorption structure and the template move synchronously.

[0045] Vacuum adsorption positioning stage: When the transmission belt 5 rotates, the guide rod 15 of the adsorption structure is lifted along the inclined surface 13 of the guide rail 12, pushing the lifting cylinder 7 to move upward, so that the vacuum suction cup 9 contacts the bottom surface of the template.

[0046] The template pressure compresses the reset spring 16, the push rod 10 triggers the contact switch 11, the connecting valve 14 opens, and the vacuum pump group evacuates the vacuum suction cup 9 through the fixed pipe 6 and the telescopic pipe 8 to adsorb and fix the template.

[0047] Spraying and curing stage: The positioned template enters the wrapping cover 18, and the spray head 20 sprays powder evenly on its surface. The abutment belts 19 on both sides simultaneously rub and seal to prevent the powder from leaking out.

[0048] After the spraying is completed, the electric heating component at the rear section of the wrapping cover 18 thermally cures the coating to form a continuous processing flow.

[0049] Reset and cycle phase: After the adsorption structure leaves the spraying area along with the transmission belt 5, the guide rod 15 descends along the downward inclined section of the guide rail 12, the reset spring 16 pushes the vacuum suction cup 9 to reset, and the connecting valve 14 is closed to release the vacuum, completing a single cycle.

[0050] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still 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 an 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 via 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 The top of the lifting cylinder (7) and the bottom of the vacuum suction cup (9) are respectively fixedly connected, the surface of the lifting cylinder (7) is fixedly connected with a guide rod (15), the inner cavity of the spray box (1) is fixedly connected with a guide rail (12) abutting against the guide rod (15), and both ends of the guide rail (12) are provided with a downwardly bent inclined surface (13); the surface of the lifting cylinder (7) is fixedly connected with a contact switch (11), and the side of the vacuum suction cup (9) is fixedly connected with a top rod (10) located above the contact switch (11); The vacuum suction cup (9) and the transmission belt (5) move synchronously to absorb 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: Two positioning mechanisms are provided and are symmetrically arranged on both sides of the conveying mechanism. The spraying mechanism comprises a wrapping cover (18) fixed in the inner cavity of the spray box (1). The inner cavity of the wrapping cover (18) contains a nozzle (20). The inner cavity of the wrapping cover (18) located behind the nozzle (20) contains an electric heating component. Both sides of the inner cavity of the wrapping cover (18) are rotatably connected to a plurality of power rollers. The surfaces of the power rollers are transmission-connected to abutment belts (19). The side edges of the abutment belts (19) abut against the side edges of the aluminum template (17). The aluminum template (17) is conveyed in the middle of the conveying roller (3). 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 belts (5) to operate synchronously at the same linear speed as the conveying roller (3).

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