A spraying system and spraying method for processing a shaped perforated aluminum template

Abstract

The present application relates to the technical field of engineering aluminum formwork processing, in particular to a spraying system and method for processing shaped perforated aluminum formwork, which provides a spraying system for processing shaped perforated aluminum formwork, which is based on the cooperation of a perforated powder spraying machine and a perforated powder guiding tool. The perforated powder spraying machine sprays electrified fluorocarbon paint, and the perforated powder guiding tool can guide the electrified fluorocarbon paint to move towards the perforation of the shaped perforated aluminum formwork based on its electrification characteristics, thereby improving the adhesion degree of the perforation. The perforated powder guiding tool with a special structure is adopted, in which the periodic vibration generated by the vibration column changes the distribution of the first gap, so that the electrified fluorocarbon paint moves in a certain direction when moving, thereby being more easily attached to the inner wall of the perforation. At the same time, the perforation of the shaped perforated aluminum formwork is reinforced by the matched spraying system, the adhesion rate of the paint in the perforation is improved, and the overall service life of the aluminum formwork is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aluminum formwork processing, in particular to a spraying system and spraying method for processing a shaped perforated aluminum formwork. BACKGROUND

[0002] The aluminum formwork is also known as aluminum alloy formwork, and is a full name of concrete engineering aluminum alloy formwork. It is a new formwork system after wood formwork, plywood and steel formwork. It is made of aluminum alloy profiles through mechanical processing and welding splicing process and is suitable for concrete engineering.

[0003] In order to enable the aluminum formwork to be repeatedly used, it often needs to be sprayed, and release agent and other protective coatings are sprayed on the surface. The traditional aluminum formwork release agent relies on surface brushing of release agent to eliminate the bonding force between the formwork and the concrete or the cohesion of the concrete surface. Its mechanism is to rely on chemical reaction between the release agent and the concrete to generate non-water-soluble calcium soap to form a non-bonding isolation film, thereby reducing the friction factor of the contact surface and avoiding direct contact between the concrete and the formwork.

[0004] Most of the aluminum formwork is a light plate structure, that is, there is no inner cavity structure, and the surface is not provided with perforations. Therefore, the conventional spraying system and spraying method can uniformly spray the release agent and other protective coatings on the surface.

[0005] As shown in Figure 1 and Figure 2 , it is a shaped perforated aluminum formwork. The difference from the conventional aluminum formwork is that there is an open cavity structure, and perforations are distributed on the surface. In use, the perforations are used for fixing wall bolts, pull-out pieces or connecting pieces, and the cavity can reduce the weight of the formwork and form a standardized module, which is suitable for standard floor construction of high-rise buildings such as residential buildings, office buildings and commercial complexes. This type of building component is highly standardized, and can be quickly assembled through holes, which can greatly improve the construction efficiency.

[0006] The conventional spraying system and spraying method for this type of shaped perforated aluminum formwork cannot well treat the adhesion of the coating in the perforations, and poor adhesion of the coating will affect the service life of the perforations, resulting in that the plate body of this type of aluminum formwork can still be used, but the perforations are irreversibly damaged and thus scrapped. Therefore, manual additional spraying of the perforations is needed, but this manual spraying method is not consistent with the overall automatic spraying. SUMMARY

[0007] The purpose of the present application is to provide a spraying system and spraying method for processing a shaped perforated aluminum formwork in view of the above-mentioned problems.

[0008] The technical scheme adopted by the present application is as follows: a spraying system for processing a shaped perforated aluminum template, which is suitable for spraying the shaped perforated aluminum template, and is sequentially provided with a pretreatment cleaning mechanism, a moisture drying mechanism, a dust blowing mechanism, a film spraying mechanism and a curing drying mechanism along a production direction;

[0009] The pretreatment cleaning mechanism is used for removing grease on the surface of the shaped perforated aluminum template.

[0010] The moisture drying mechanism is used for drying the moisture remaining on the surface of the shaped perforated aluminum template after the grease is removed.

[0011] The dust blowing mechanism is used for removing floating dust on the surface of the shaped perforated aluminum template.

[0012] The film spraying mechanism is used for spraying a film preservative on the surface of the shaped perforated aluminum template.

[0013] The curing drying mechanism is used for curing the reagent on the surface of the shaped perforated aluminum template, and further comprises a perforated powder spraying mechanism, which is arranged between the film spraying mechanism and the curing drying mechanism, and comprises a perforated powder spraying machine and a perforated powder guiding tool.

[0014] The perforated powder spraying machine can spray the charged fluorocarbon paint towards the shaped perforated aluminum template.

[0015] The perforated powder guiding tool can be arranged in the shaped perforated aluminum template and can guide the charged fluorocarbon paint into the perforations of the shaped perforated aluminum template.

[0016] Further, the perforated powder spraying machine comprises a perforated powder spraying box, a reciprocating powder spraying table and a conveying belt.

[0017] The conveying belt is arranged in a spraying cavity of the perforated powder spraying box and moves along the production direction under the driving of a motor.

[0018] The shaped perforated aluminum template is connected below the conveying belt by a clamp and can move together with the conveying belt.

[0019] The reciprocating powder spraying table is arranged on both sides of the perforated powder spraying box and can spray the charged fluorocarbon paint onto the shaped perforated aluminum template.

[0020] Further, the output end of the reciprocating powder spraying table is in communication with a negative electric atomizing nozzle, and the input end of the reciprocating powder spraying table is in communication with a large cyclone separator.

[0021] The negative electric atomizing nozzle is located in the spraying cavity and the spraying end can face the shaped perforated aluminum template.

[0022] Further, the perforated powder guiding tool comprises a tool frame, a powder guiding structure and a power supply.

[0023] The tooling frame can fit into the inner cavity of the shaped perforated aluminum template;

[0024] The number of powder guiding structures matches the number of perforations on the surface of the shaped perforated aluminum template, and the powder guiding structures are located inside the tooling frame, with the installation position matching the perforation position.

[0025] The power supply is located on the tooling frame, and the anode end is connected to the powder guiding structure.

[0026] Furthermore, the powder guiding structure includes a cylinder, an anode body, and a vibrating column;

[0027] One side of the cylinder is an open end, and the open end can fit into the perforation;

[0028] The anode body is located on the other side of the cylinder;

[0029] The vibrating column is located inside the cylinder and can vibrate inside the cylinder. One end of the vibrating column is connected to the anode body.

[0030] Furthermore, the axis of the vibrating column coincides with the axis of the cylinder, the vibrating column is made of soft material, and a vibrating motor is installed inside the vibrating column.

[0031] Furthermore, there is a first gap between the vibrating column and the inner wall of the cylinder, and a second gap between the anode body and the inner wall of the cylinder, and the width of the second gap is smaller than the width of the first gap.

[0032] Furthermore, the anode body is connected to the anode terminal of the power supply via an insulated rubber wire.

[0033] Furthermore, the tooling frame is also provided with equalizing rings, and the equalizing rings are located on the outside of the tooling frame. The number of equalizing rings matches the number of perforations on the surface of the shaped perforated aluminum template, and the equalizing rings can fit into the perforations.

[0034] This application also provides a spraying method for processing shaped perforated aluminum templates, which is based on the above-mentioned spraying system for processing shaped perforated aluminum templates and includes the following steps:

[0035] S1. Place the shaped perforated aluminum template on the pretreatment cleaning mechanism to remove the grease from the surface of the shaped perforated aluminum template;

[0036] S2. The shaped perforated aluminum template after degreasing is conveyed to the moisture drying unit by the conveying mechanism to dry the residual moisture on the surface of the shaped perforated aluminum template;

[0037] S3. The dried and shaped perforated aluminum template is conveyed to the dust blowing mechanism by the conveying mechanism to remove the floating dust on the surface of the shaped and perforated aluminum template;

[0038] S4. The shaped perforated aluminum template with removed surface dust is conveyed to the film spraying mechanism via a conveying mechanism, and the film protective agent is sprayed on the surface of the shaped perforated aluminum template;

[0039] S5. The shaped perforated aluminum template with sprayed film protective agent is removed, the perforated powder guide tool is installed, the shaped perforated aluminum template with installed perforated powder guide tool is installed on the conveying belt through a clamp, and the power supply is connected to the anode body and then conveyed to the perforated powder spraying machine;

[0040] S6. The perforated powder spraying machine sprays the charged fluorocarbon paint on the shaped perforated aluminum template, and the vibration motor periodically vibrates;

[0041] S7. The shaped perforated aluminum template with completed perforated powder spraying is conveyed to the curing and drying mechanism, and the reagent and powder on the surface of the shaped perforated aluminum template are cured.

[0042] The beneficial effects of the present application include at least one of the following;

[0043] 1. A spraying system for processing a shaped perforated aluminum template is provided, which is based on the cooperation of a perforated powder spraying machine and a perforated powder guide tool, wherein the perforated powder spraying machine sprays charged fluorocarbon paint, and the perforated powder guide tool can guide the charged fluorocarbon paint to move towards the perforations of the shaped perforated aluminum template based on its charged characteristics, thereby improving the adhesion degree to the perforations.

[0044] 2. The perforated powder guide tool with a special structure is adopted, wherein the periodically vibrating vibration column arranged therein can change the distribution of the first gap, so that the charged fluorocarbon paint moves in a certain direction when moving along the vibration, thereby being more easily attached to the inner wall of the perforation.

[0045] 3. A matching spraying method for processing a shaped perforated aluminum template is provided, which is based on the existing pretreatment cleaning, moisture drying, dust blowing and other processes, and increases the perforated powder spraying. The perforations of the shaped perforated aluminum template are intensively sprayed by the matching spraying system, the adhesion rate of the paint in the perforation is improved, the probability of subsequent manual supplementary spraying is greatly reduced, the service life of the shaped perforated aluminum template is improved, and the manual work intensity is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 It is a physical diagram of a shaped perforated aluminum template;

[0047] Figure 2 It is a schematic diagram of the internal structure of a shaped perforated aluminum template;

[0048] Figure 3 It is a spraying process diagram for processing a shaped perforated aluminum template;

[0049] Figure 4 It is a structure schematic diagram of a perforated powder spraying machine;

[0050] Figure 5 Fig. 1 is a schematic view of a connection structure of a shaped perforated aluminum template and a perforated powder guide tool;

[0051] Figure 6 Fig. 2 is a schematic view of a structure of a powder guide structure;

[0052] Figure 7 Fig. 3 is a schematic view of another perspective of a structure of a powder guide structure;

[0053] Figure 8 Fig. 4 is a schematic view of one vibration state of a vibration column;

[0054] Figure 9 Fig. 5 is a schematic view of another vibration state of a vibration column.

[0055] In the figures:

[0056] 1 is a shaped perforated aluminum template, 2 is a first piece loading device, 3 is a hot water dust removal device, 4 is a first acid degreasing device, 5 is a second acid degreasing device, 6 is a water washing device, 7 is a neutralizing device, 8 is a first water washing device, 9 is a second water washing device, 10 is a dripping drying device, 11 is a moisture drying device, 12 is a dust blowing device, 13 is a double-sided film coating agent spraying device, 14 is a second piece loading device, 15 is a perforated powder spraying mechanism, 16 is a curing and drying device, 17 is a piece unloading device, 18 is a perforated powder spraying box, 19 is a reciprocating powder spraying table, 20 is a negative ion atomizing nozzle, 21 is a spraying cavity, 22 is a conveying belt, 23 is a clamp, 24 is a tool frame, 25 is a perforation, 26 is a pressure equalizing ring, 27 is a power supply, 28 is an insulating rubber wire, 29 is a cylinder, 30 is a vibration column, 31 is an anode body, 32 is a vibration motor, 33 is a first gap, and 34 is a second gap. DETAILED DESCRIPTION

[0057] In order to make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application but not all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0058] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0059] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other in the case of no conflict.

[0060] It should be noted that similar reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

[0061] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly understood by those skilled in the art, and are only for the convenience of describing the present application and simplifying the description, and thus cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0062] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0063] A spraying system for processing a shaped perforated aluminum template is suitable for spraying a shaped perforated aluminum template, and along the production direction, the spraying system is sequentially provided with a pretreatment cleaning mechanism, a moisture drying mechanism, a dust blowing mechanism, a film spraying mechanism and a curing drying mechanism.

[0064] The pretreatment cleaning mechanism is used to remove grease on the surface of the shaped perforated aluminum template 1.

[0065] The moisture drying mechanism is used to dry the residual moisture on the surface of the shaped perforated aluminum template 1 after removing the grease.

[0066] The dust blowing mechanism is used to remove floating dust on the surface of the shaped perforated aluminum template 1.

[0067] The film spraying mechanism is used to spray a film preservative on the surface of the shaped perforated aluminum template 1.

[0068] The solidification drying mechanism is used for solidifying the surface reagent of the shaped perforated aluminum template 1, and is characterized in that it further comprises a perforated powder spraying mechanism 15 arranged between the film spraying mechanism and the solidification drying mechanism, wherein the perforated powder spraying mechanism 15 comprises a perforated powder spraying machine and a perforated powder guiding tool.

[0069] The perforated powder spraying machine can spray the charged fluorocarbon paint towards the shaped perforated aluminum template 1.

[0070] The perforated powder guiding tool can be arranged in the shaped perforated aluminum template 1 and can guide the charged fluorocarbon paint into the perforations 25 of the shaped perforated aluminum template 1.

[0071] The purpose of the design is to provide a spraying system for processing a shaped perforated aluminum template, which is based on the cooperation of a perforated powder spraying machine and a perforated powder guiding tool, wherein the perforated powder spraying machine sprays the charged fluorocarbon paint, and the perforated powder guiding tool can guide the charged fluorocarbon paint to move towards the perforations of the shaped perforated aluminum template based on its charged characteristics, thereby improving the adhesion degree of the perforations.

[0072] Meanwhile, as shown in Figure 4 The specific structure of the perforated powder spraying machine provided in the embodiment comprises a perforated powder spraying box 18, a reciprocating powder spraying table 19 and a conveying belt 22.

[0073] The conveying belt 22 is arranged in the spraying cavity 21 of the perforated powder spraying box 18 and moves along the production direction under the driving of a motor.

[0074] The shaped perforated aluminum template 1 is connected below the conveying belt 22 by a clamp 23 and can move together with the conveying belt 22.

[0075] The reciprocating powder spraying table 19 is arranged on both sides of the perforated powder spraying box 18 and can spray the charged fluorocarbon paint onto the shaped perforated aluminum template 1.

[0076] Meanwhile, the output end of the reciprocating powder spraying table 19 is in communication with the negative electric atomizing nozzle 20, and the input end of the reciprocating powder spraying table 19 is in communication with a large cyclone separator.

[0077] The negative electric atomizing nozzle 20 is located in the spraying cavity 21 and the spraying end can face the shaped perforated aluminum template 1.

[0078] It should be pointed out that the perforated powder spraying machine provided in the embodiment is based on the electrostatic powder spraying method, which sprays the powder with negative charge towards the shaped perforated aluminum template through the negative electric atomizing nozzle. The powder with negative charge moves and deposits towards the perforation area of the aluminum template under the action of air flow and positive electric attraction.

[0079] As shown in Figures 5 to 7As shown, the perforated powder guiding tool includes a tool frame 24, a powder guiding structure, and a power supply 27;

[0080] The tool frame 24 can be attached to the inner cavity of the shaped perforated aluminum template 1;

[0081] The number of powder guiding structures matches the number of perforations 25 on the surface of the shaped perforated aluminum template 1, and the powder guiding structures are arranged on the inner side of the tool frame 24, with the installation position matching the position of the perforations 25;

[0082] The power supply 27 is arranged on the tool frame 24, and the anode end is in communication with the powder guiding structure.

[0083] Meanwhile, the powder guiding structure includes a cylinder 29, an anode body 31, and a vibration column 30;

[0084] One side of the cylinder 29 is an open end, and the open end can be attached to the perforation 25;

[0085] The anode body 31 is arranged on the other side of the cylinder 29;

[0086] The vibration column 30 is arranged in the cylinder 29 and can vibrate in the cylinder 29, with one end of the vibration column 30 connected to the anode body 31.

[0087] The purpose of this design is that since the shaped perforated aluminum template itself does not have additional charges, when the negatively charged paint powder comes into contact with the surface of the shaped perforated aluminum template, the potential difference between the shaped perforated aluminum template and the negatively charged paint powder tends to zero after the positive charges on the surface of the shaped perforated aluminum template are neutralized, and the negatively charged paint powder will not further adhere. However, due to the special structure of the tool, a positive charge can be generated near the perforated area of the shaped perforated aluminum template, guiding the negatively charged paint powder to deposit and enrich in this area, which is beneficial for adhesion in the perforation.

[0088] Meanwhile, as shown in Figure 8 and Figure 9 The axis of the vibration column 30 coincides with the axis of the cylinder 29, the vibration column 30 is made of soft material, a vibration motor 32 is arranged in the vibration column 30, there is a first gap 33 between the vibration column 30 and the inner wall of the cylinder 29, there is a second gap 34 between the anode body 31 and the inner wall of the cylinder 29, and the width of the second gap 34 is smaller than the width of the first gap 33.

[0089] The purpose of this design is to use a perforated powder guiding tool with a special structure, in which the periodic vibration generated by the vibration column can change the distribution of the first gap, so that the charged fluorocarbon paint moves in a certain direction when it moves, thereby making it easier to adhere to the inner wall of the perforation.

[0090] It also needs to be pointed out that in many times of practice, it is difficult to guide the negative charged coating powder to the perforation of the aluminum template more evenly through the form of guiding adsorption by a single anode body, although the thickness accuracy of the coating powder in the perforation of the aluminum template is not high in actual use, and good adhesion can be achieved, which is mainly used for perforation protection.

[0091] In order to further improve this problem, a vibration column structure is introduced in the embodiment. The vibration column is usually made of soft material, which can deform when the vibration column vibrates. The vibration column is installed on the anode column and has a diameter slightly smaller than that of the anode column, so that part of the anode column can leak out and face the perforation of the aluminum template.

[0092] The size of the entire cylinder is slightly larger than the size of the perforation, and is also a cylindrical structure, and the vibration column is also a cylindrical structure, and its cross section forms a concentric circle with the cylinder. When the vibration column vibrates, it changes the shape of the first gap 33, thereby indirectly adjusting the strength of the negative charged coating powder in each direction. It needs to be pointed out that in the embodiment, the vibration column is used to adjust the area of the anode column that leaks out. At this time, the number of vibration motors 32 in the vibration column can be two or more, one for vertical vibration and the other for horizontal vibration, and the two are superimposed to achieve more precise adjustment.

[0093] In addition, in use, due to the guidance of the anode body, the negative charged coating powder sprayed by the negative charged atomizing nozzle moves towards the anode body in the perforation powder spraying box, so that it will finally gather in the first gap 33 and the second gap 34. Therefore, after completing a batch of processing, the entire tooling needs to be maintained to remove the powder in the two gaps and restore the guiding effect.

[0094] The material of the tooling frame 24 is usually ABS plastic, so the whole body will not conduct electricity, and the contact with the aluminum template will not make the aluminum template conduct electricity to become an anode body, but will direct the negative charged powder towards the perforation.

[0095] In addition, in the embodiment, the powder is negatively charged, and then guided by the anode body. However, in specific practice, the powder can also be positively charged, and then guided by a negative electrode body. The principle is the same.

[0096] In the embodiment, the tooling frame 24 is also provided with an equalizing ring 26, and the equalizing ring 26 is located outside the tooling frame 24. The number of equalizing rings 26 matches the number of perforations 25 on the surface of the shaped perforated aluminum template 1, and the equalizing ring 26 can be attached to the perforation 25.

[0097] The purpose of such design is that when the above structure is used to coat the powder with negative electricity on the perforated attachment belt in actual use, excessive attraction will occur at the edge of the perforation, therefore, the equalizing ring is arranged to form a conductive surface with the same potential as the tool body on the surface of the equalizing ring, so that the electric field strength at the edge of the hole gradually decays from the edge to the center, and the powder particles make parabolic motion in the uniform electric field instead of being excessively attracted by the edge.

[0098] In a specific implementation scenario, the perforation depth of the aluminum template is 15 mm, the perforation diameter is 10 mm, and the powder thickness in the perforation center area needs to be 80-100 μm. By the technical scheme provided in this embodiment, the anode body is connected to the anode electric, the negative electric atomizing nozzle is connected to the negative electric, and the equalizing ring is installed at the edge of the perforation, and the diameter of the equalizing ring is 12 mm. The pulse vibration frequency of the vibration motor is set to 20-30 Hz.

[0099] The technical scheme provided in this embodiment still has certain improvement space in practice. On the one hand, the coverage of the powder in the perforation needs to be further improved in the process of guiding the anode body. Through slice laser scanning, the coverage is about 92%. On the other hand, the deposition thickness uniformity is that the deposition thickness at the end far from the tool is slightly lower than that at the end close to the tool, and the overall deposition thickness is still in the range of 80-100 μm. Since the aluminum template is mainly used for protection of the perforation in use and for subsequent installation of bolts and other structures, the precision requirement is not strict, but there is still room for improvement. When the person skilled in the art implements the scheme, the frequency of the vibration motor can be adjusted by a more precise algorithm to adjust the direction of guidance, so as to improve the deposition thickness uniformity. The person skilled in the art can also further improve the first gap and the second gap. At present, the technical scheme provided in this embodiment is in the form of a circular ring, and in the future, it can be set in the form of a circular table, that is, it can be set to be inclined. In this way, the powder can be guided to move obliquely, and it is easier to contact the inner wall of the perforation to complete the deposition.

[0100] As shown in Figure 3 Fig. 1, the spraying system for processing a shaped perforated aluminum template provided in this embodiment provides a spraying method for processing a shaped perforated aluminum template, which includes the following steps:

[0101] S1. Place the shaped perforated aluminum template 1 on the pretreatment cleaning mechanism to remove oil on the surface of the shaped perforated aluminum template 1.

[0102] S2. After the oil is removed, the shaped perforated aluminum template 1 is conveyed to the moisture drying mechanism by the conveying mechanism to dry the moisture remaining on the surface of the shaped perforated aluminum template 1.

[0103] S3. After drying, the shaped perforated aluminum template 1 is conveyed to the dust blowing mechanism by the conveying mechanism to remove floating dust on the surface of the shaped perforated aluminum template 1.

[0104] S4. The surface dust-removed shaped perforated aluminum template 1 is conveyed to the film spraying mechanism via the conveying mechanism, and the shaped perforated aluminum template 1 is sprayed with the film protection agent on the surface;

[0105] S5. The shaped perforated aluminum template 1 sprayed with the film protection agent is taken down, the perforated powder guide tool is installed, the shaped perforated aluminum template 1 installed with the perforated powder guide tool is installed on the conveying belt 22 through the clamp 23, and the power supply 27 is communicated with the anode body 31, and then conveyed to the perforated powder spraying machine;

[0106] S6. The perforated powder spraying machine sprays the charged fluorocarbon paint on the shaped perforated aluminum template 1, and the vibration motor 32 periodically vibrates;

[0107] S7. The shaped perforated aluminum template 1 completed with the perforated powder spraying is conveyed to the curing and drying mechanism, and the reagent and the powder on the surface of the shaped perforated aluminum template 1 are cured.

[0108] The purpose of such design is to provide a matched shaped perforated aluminum template processing spraying method. On the basis of the existing pretreatment cleaning, moisture drying, dust blowing and other processes, the perforated powder spraying is added, the perforated powder is strengthened by the matched spraying system, the adhesion rate of the paint in the perforation is improved, the probability of subsequent manual supplementary spraying is greatly reduced, the service life of the shaped perforated aluminum template is improved, and the manual work intensity is reduced.

[0109] The overall working process is that the on-site worker first puts the shaped perforated aluminum template 1 through the first feeding device 2, and moves with the feeding belt, and then passes through the hot water washing and dust removing device 3, the first acid degreasing device 4, the second acid degreasing device 5, the water washing device 6, the neutralizing device 7, the first water washing device 8, the second water washing device 9, the dripping drying device 10, the moisture drying device 11, the dust blowing device 12 and the double-sided film protection agent spraying device 13, and then the on-site worker takes it down, installs the perforated powder guide tool, and completes the curing of the powder and the film protection agent through the second feeding device 14, the perforated powder spraying mechanism 15 and the curing and drying device 16, and finally completes the unloading from the unloading device 17.

[0110] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A spraying system for processing shaped perforated aluminum templates, suitable for spraying shaped perforated aluminum templates, wherein along the production direction, the spraying system is sequentially provided with a pretreatment cleaning mechanism, a moisture drying mechanism, a dust blowing mechanism, a film spraying mechanism, and a curing and drying mechanism; The pretreatment cleaning mechanism is used to remove grease from the surface of the shaped perforated aluminum template (1); The moisture drying mechanism is used to dry the residual moisture on the surface of the shaped perforated aluminum template (1) after the grease has been removed; The dust blowing mechanism is used to remove floating dust from the surface of the shaped perforated aluminum template (1); The spraying mechanism is used to spray a protective film agent onto the surface of the shaped perforated aluminum template (1); The curing and drying mechanism is used to cure the surface reagent of the shaped perforated aluminum template (1), characterized in that, It also includes a perforated powder coating mechanism (15), which is located between the film spraying mechanism and the curing and drying mechanism. The perforated powder coating mechanism (15) includes a perforated powder coating machine and a perforated powder guiding fixture. The perforated powder coating machine can spray charged fluorocarbon coating onto a shaped perforated aluminum template (1); The perforated powder guiding tool can be installed inside the shaped perforated aluminum template (1) and can guide the charged fluorocarbon coating into the perforations (25) of the shaped perforated aluminum template (1); The perforated powder coating machine includes a perforated powder coating box (18), a reciprocating powder coating table (19), and a conveyor belt (22). The conveyor belt (22) is located in the spraying chamber (21) of the perforated powder coating box (18) and moves along the production direction under the drive of the motor; The shaped perforated aluminum template (1) is connected to the bottom of the conveyor belt (22) by a clamp (23) and can move together with the conveyor belt (22); The reciprocating powder spraying station (19) is located on both sides of the perforated powder spraying box (18) and can spray charged fluorocarbon coating onto the shaped perforated aluminum template (1). The perforated powder guiding fixture includes a fixture frame (24), a powder guiding structure, and a power supply (27). The tooling frame (24) can fit into the inner cavity of the shaped perforated aluminum template (1); The number of powder guiding structures matches the number of perforations (25) on the surface of the shaped perforated aluminum template (1), and the powder guiding structures are located on the inner side of the tooling frame (24), with the installation position matching the position of the perforations (25). The power supply (27) is located on the tooling frame (24), and the anode end is connected to the powder guiding structure; The powder guiding structure includes a cylinder (29), an anode body (31), and a vibrating column (30). The cylinder (29) has an open end on one side, and the open end can fit into the perforation (25); The anode body (31) is located on the other side of the cylinder (29); The vibrating column (30) is located inside the cylinder (29) and can vibrate inside the cylinder (29). One end of the vibrating column (30) is connected to the anode body (31).

2. The spraying system for processing shaped perforated aluminum templates according to claim 1, characterized in that, The output end of the reciprocating powder spraying station (19) is connected to the negatively charged atomizing nozzle (20), and the input end of the reciprocating powder spraying station (19) is connected to the large cyclone separator. The negatively charged atomizing nozzle (20) is located in the spraying chamber (21), and the spraying end can be directed toward the shaped perforated aluminum template (1).

3. The spraying system for processing shaped perforated aluminum templates according to claim 1, characterized in that, The axis of the vibrating column (30) coincides with the axis of the cylinder (29). The vibrating column (30) is made of soft material and a vibrating motor (32) is installed inside the vibrating column (30).

4. The spraying system for processing shaped perforated aluminum templates according to claim 1, characterized in that, There is a first gap (33) between the vibrating column (30) and the inner wall of the cylinder (29), and there is a second gap (34) between the anode body (31) and the inner wall of the cylinder (29), and the width of the second gap (34) is smaller than the width of the first gap (33).

5. The spraying system for processing shaped perforated aluminum templates according to claim 1, characterized in that, The anode (31) is connected to the anode end of the power supply (27) via an insulated rubber wire (28).

6. The spraying system for processing shaped perforated aluminum templates according to claim 1, characterized in that, The tooling frame (24) is also provided with a pressure equalizing ring (26), and the pressure equalizing ring (26) is located on the outside of the tooling frame (24). The number of pressure equalizing rings (26) matches the number of perforations (25) on the surface of the shaped perforated aluminum template (1). The pressure equalizing ring (26) can fit with the perforations (25).

7. A spraying method for processing shaped perforated aluminum templates, implemented based on the spraying system for processing shaped perforated aluminum templates according to any one of claims 1 to 6, characterized in that, Includes the following steps: S1. Place the shaped perforated aluminum template (1) on the pretreatment cleaning mechanism to remove the grease from the surface of the shaped perforated aluminum template (1); S2. The shaped perforated aluminum template (1) after degreasing is conveyed to the moisture drying mechanism via the conveying mechanism to dry the residual moisture on the surface of the shaped perforated aluminum template (1); S3. The dried shaped perforated aluminum template (1) is conveyed to the dust blowing mechanism by the conveying mechanism to remove the floating dust on the surface of the shaped perforated aluminum template (1); S4. The shaped perforated aluminum template (1) with surface dust removed is conveyed to the spraying mechanism via the conveying mechanism, and a protective film agent is sprayed onto the surface of the shaped perforated aluminum template (1). S5. Remove the shaped perforated aluminum template (1) for spraying the protective film agent, install the perforated powder guide fixture, and install the shaped perforated aluminum template (1) with the perforated powder guide fixture on the conveyor belt (22) through the clamp (23), and then connect the power supply (27) to the anode body (31) and transport it to the perforated powder spraying machine. S6. A perforated powder coating machine sprays an electrically charged fluorocarbon coating onto a shaped perforated aluminum template (1), wherein the vibration motor (32) vibrates periodically. S7. The perforated aluminum template (1) after the perforation powder coating is completed is transported to the curing and drying mechanism to cure the reagent and powder on the surface of the perforated aluminum template (1).

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