Electrostatic spraying production line for composite material profile

Abstract

An electrostatic spraying production line for a composite material profile comprises a moving device, a dust removal device, a spraying device and a drying device, and the spraying device comprises a first spraying device body used for spraying conductive liquid and a second spraying device body used for spraying electrostatic paint; a plurality of hook assemblies used for being connected with a sectional material are connected to the moving device in a hung mode, and the moving device can drive the hook assemblies to move. The hook assembly comprises a hook part and a connecting part, and the connecting part can be embedded into the sectional material and fix the sectional material to the hook assembly. The sectional material is cleaned through the dust removal device before spraying, it is guaranteed that no dust is adsorbed to the surface of the sectional material, and it is guaranteed that after sprayed paint is adsorbed to the surface of the sectional material, the surface smoothness of the sectional material is good; through the drying device, the paint spraying and drying speed is increased through drying after spraying is finished, and the paint spraying efficiency is improved; the connecting part of the hook assembly is connected with the sectional material, and the sectional material is hung on the moving device through the hook part, so that the feeding and discharging process of the sectional material is simplified, and the spraying efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of spraying, and more particularly to an electrostatic spraying production line for composite material profiles. Background Technology

[0002] After the profiles are formed, they need to be painted. In the existing production process, electrostatic spraying is used to paint the surface of the profiles. Electrostatic spraying uses a grounded object as the anode and a high-voltage grid as the cathode. A negative high voltage is applied, forming a high-voltage electrostatic field between the two electrodes. The cathode generates corona discharge, which charges the sprayed paint particles and further atomizes them. According to the principle of like charges repelling and unlike charges attracting, the charged paint particles are attracted to the object along the electric field lines under the influence of the electrostatic field. After discharge, they adhere to the object.

[0003] Before painting, the profiles must be erected and hung on the transmission equipment, and the profiles need to be electrically connected to the transmission equipment to ensure that the profiles are grounded. However, since the profiles are very long, it is very inconvenient for workers to hang them, which greatly affects work efficiency. In order to ensure a reliable connection between the profiles and the hooks and to achieve electrical conductivity, workers need to spend a lot of time tightening the connection between the hooks and the profiles, which is time-consuming and labor-intensive, and greatly affects the painting efficiency.

[0004] In the existing production process, the paint is sprayed first, then leveled, and then dried. Because the drying temperature is high, the paint on the surface is dried first, while the paint inside is still fluid. After the paint inside dries, the surface may crack, resulting in poor drying effect.

[0005] Based on the above, this utility model proposes an electrostatic spraying production line for composite material profiles, which can effectively solve one or more of the above problems. Summary of the Invention

[0006] The purpose of this application is to provide an electrostatic spraying production line for composite material profiles.

[0007] To achieve the above objectives, this application adopts the following technical solution:

[0008] An electrostatic spraying production line for composite profiles includes a moving device for driving the profiles to move. Along the moving device, from the loading point to the unloading point, are sequentially arranged a dust removal device, a spraying device, and a drying device. The spraying device includes a first spraying device for spraying conductive liquid and a second spraying device for spraying electrostatic paint. The moving device is equipped with a plurality of hook assemblies for connecting the profiles, and the moving device can drive the hook assemblies to move. Each hook assembly includes a hook portion and a connecting portion, the connecting portion being able to embed into the profile and fix the profile to the hook assembly.

[0009] Preferably, the connecting part and the profile are interference fit.

[0010] Preferably, at least one side of the connecting portion is provided with a plurality of spring pieces. When the connecting portion is embedded in the profile, the side of the spring piece away from the connecting portion abuts against the inner wall of the profile, and the spring piece will bend.

[0011] Preferably, the connecting part includes two adjusting blocks and an adjusting rod passing through the two adjusting blocks. The top end of the adjusting rod is connected to the hook. The adjusting rod is threaded. Both adjusting blocks are threaded to engage with the thread on the adjusting rod, and the threads on the two adjusting blocks are in opposite directions. At least one set of opposing sides of the adjusting blocks are also provided with abutment plates. Each abutment plate is hinged with two connecting rods, and the other ends of the two connecting rods connected to the same abutment plate are respectively hinged to the two adjusting blocks.

[0012] Preferably, the abutment plate has an elastic block on the side opposite to the adjusting block.

[0013] Preferably, the bottom of the hook is provided with a plate.

[0014] Preferably, a leveling device is provided between the first spraying device and the second spraying device, and a leveling device is also provided between the second spraying device and the drying device. The leveling device includes an air supply mechanism.

[0015] Preferably, a heating structure is also provided in the leveling device between the second spraying device and the drying device.

[0016] Preferably, the moving device includes a guide rail and at least one drive structure disposed on the guide rail. The drive structure includes a chain connected to the guide rail, and a connecting ring is connected to the chain. The hook assembly is hung on the connecting ring and moves along the guide rail under the action of the drive structure.

[0017] Preferably, the moving device further includes at least one tensioning structure.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] This application discloses an electrostatic spraying production line for composite material profiles. A dust removal device cleans the profiles before spraying to ensure no dust adheres to the surface, resulting in a smooth surface after the paint adheres. A drying device accelerates the drying process after spraying, improving efficiency. A hook assembly connects to the profiles and hooks them onto a moving device, simplifying the loading and unloading process and further enhancing spraying efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the hook assembly of this utility model;

[0023] Figure 3 This is a cross-sectional structural diagram of the hook assembly of this utility model;

[0024] Figure 4 This is a schematic diagram of the hook assembly in another embodiment of the present invention;

[0025] Figure 5 This is a cross-sectional structural diagram of the hook assembly in another embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the hook assembly in another embodiment of the present invention;

[0027] Figure 7 This is a cross-sectional structural diagram of the hook assembly in another embodiment of the present invention.

[0028] Figure descriptions: 1-Moving device; 11-Hook assembly; 111-Hook; 112-Connecting part; 113-Spring piece; 114-Adjusting block; 115-Adjusting rod; 116-Abutting plate; 117-Connecting rod; 118-Plate body; 12-Guide rail; 13-Drive structure; 2-Dust removal device; 3-Drying device; 4-First spraying device; 5-Second spraying device; 6-Leveling device; 61-Air supply mechanism; 62-Heating structure; 9-Profile. Detailed Implementation

[0029] To make the technical problem solved by this utility model, the technical solution adopted, and the technical effect achieved clearer, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this utility model, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are merely used for distinction in description and have no special meaning.

[0033] like Figures 1 to 3 As shown, this application provides an electrostatic spraying production line for composite material profiles, including a moving device 1 for driving the profile 9 to move. A dust removal device 2, a spraying device, and a drying device 3 are sequentially arranged along the moving device 1 from the loading point to the unloading point. The spraying device includes a first spraying device 4 for spraying conductive liquid and a second spraying device 5 for spraying electrostatic paint. A plurality of hook assemblies 11 for connecting the profile 9 are hung on the moving device 1. The moving device 1 can drive the hook assemblies 11 to move. The hook assembly 11 includes a hook portion 111 and a connecting portion 112. The connecting portion 112 can be embedded into the profile 9 and fix the profile 9 to the hook assembly 11.

[0034] This application uses a dust removal device 2 to clean the profile 9 before spraying, ensuring that there is no dust adhering to the surface of the profile 9, and ensuring that the surface of the profile 9 has a good smoothness after the paint is adhering to the surface of the profile 9; using a drying device 3, the drying speed of the paint is accelerated after spraying, thereby improving the spraying efficiency; and using a hook assembly 11 to connect to the profile 9 via the connecting part 112, and to hang it on the moving device 1 via the hook part 111, simplifying the loading and unloading process of the profile 9 and improving the spraying efficiency.

[0035] Since the composite material does not have conductive properties, the first spraying device 4 needs to spray a conductive liquid, and the hook assembly 11 needs to have a conductive material or conductive structure to ground the conductive liquid bucket hook assembly 11, so that the profile 9 is grounded as a positive terminal, ensuring that the negatively charged paint mist sprayed in the second spraying device 5 can be adsorbed onto the surface of the profile 9, thus ensuring a better painting effect.

[0036] One end of the hook 111 is connected to the connecting part 112, and the other end of the hook 111 is provided with a guide part extending outward. The guide part can reduce the difficulty for workers to connect the profile 9 to the hook assembly 11 and then hang the profile 9 on the moving device 1, thereby increasing the feeding speed.

[0037] Furthermore, the bottom of the hook 111 is provided with a plate 118, which connects the hook 111 and the connecting part 112. This not only makes the connection between the hook 111 and the connecting part 112 more reliable, but also limits the profile 9 during use, ensuring that the top of each profile 9 is under the plate 118 and will not affect the hook 111 from being hooked onto the moving device 1.

[0038] Furthermore, the connecting part 112 and the profile 9 are interference fit.

[0039] Through interference fit, the profile 9 and the connecting part 112 can be connected well, ensuring a reliable connection effect. In order to facilitate the insertion of the connecting part 112 into the profile 9, a guide slope is provided between the bottom surface and the side surface of the connecting part 112, and the guide slope gradually slopes outward from the bottom surface until the top edge of the guide slope coincides with the side surface of the connecting part 112. Through the guide slope, when the worker inserts the connecting part 112 into the profile 9, the guide slope can play a guiding role, reducing the difficulty of inserting the connecting part 112 into the profile 9 and improving the worker's work efficiency.

[0040] Furthermore, a leveling device 6 is provided between the first spraying device 4 and the second spraying device 5, and a leveling device 6 is also provided between the second spraying device 5 and the drying device 3. The leveling device 6 includes an air supply mechanism 61.

[0041] By using the leveling device 6 located between the first spraying device 4 and the second spraying device 5, after the conductive liquid is sprayed onto the profile 9, the profile 9 enters the leveling device 6. The conductive liquid will flow downwards on the surface of the profile 9, ensuring that the conductive liquid can cover the surface of the profile 9. This ensures that after the profile 9 enters the second spraying device 5, the sprayed paint mist can be fully adsorbed on the surface of the profile 9, ensuring a better painting effect.

[0042] By setting a leveling device 6 between the second spraying device 5 and the drying device 3, the paint on the surface of the profile 9 will flow under the action of gravity before drying, thereby forming a uniform paint film on the surface of the profile 9 and ensuring a better spraying effect. If leveling is not performed, the paint on the surface will still be in droplet form during drying, and small bumps will appear on the surface of the profile 9 after drying, which will seriously affect the painting quality.

[0043] The air supply mechanism 61 includes an air supply duct and a fan installed in the air supply duct. Between the air inlet end of the air supply duct and the fan, there is also an adsorption component for adsorbing conductive liquid or paint liquid and a dehumidification component for dehumidification. The adsorption material in the adsorption structure can be activated carbon, and the dehumidification material in the dehumidification component can be calcium chloride, quicklime, charcoal, etc. A dust removal device is also installed between the air outlet end of the air supply duct and the fan to prevent dust and other small solid particles from being blown into the leveling device and to ensure that dust and other small solid particles are not adsorbed on the surface of the profile 9.

[0044] Furthermore, a heating structure 62 can be provided in the leveling device 6 between the second spraying device 5 and the drying device 3. The profile 9 can be preheated during the leveling process to increase the temperature of the profile 9 and prevent the paint film from drying and cracking due to the sudden temperature rise when the profile 9 enters the drying device 3, thus ensuring a better painting effect.

[0045] Furthermore, the moving device 1 includes a guide rail 12 and at least one drive structure 13 disposed on the guide rail 12. The drive structure 13 includes a chain connected to the guide rail 12, and a connecting ring is connected to the chain. The hook assembly 11 is hung on the connecting ring and moves along the guide rail 12 under the action of the drive structure 13.

[0046] The connecting ring is used to connect with the hook assembly 11 to ensure that the hook assembly 11 will not fall off the connecting ring during movement, thus ensuring a good connection effect and ensuring that the painting work can be carried out smoothly.

[0047] Furthermore, the mobile device 1 also includes at least one tensioning structure 14.

[0048] The tensioning structure 14 prevents poor meshing and chain vibration when the verticality of the chain is too large, and prevents the profile 9 hanging on the guide rail 12 from falling off due to vibration, thus ensuring a better movement effect.

[0049] like Figure 4 and 5 As shown, in another embodiment, at least one side of the connecting portion 112 is provided with a plurality of spring pieces 113. When the connecting portion 112 is embedded in the profile 9, the side of the spring piece 113 away from the connecting portion 112 abuts against the inner wall of the profile 9, and the spring piece 113 will bend.

[0050] When the worker inserts the connecting part 112 into the profile 9, the spring piece 113 will bend due to the pressure from the side wall of the profile 9. The spring piece 113 has the characteristic of returning to its original shape under this state. Therefore, the spring piece 113 has a reaction force on the side wall of the profile 9, thereby achieving an interference fit between the connecting part 112 and the profile 9. By utilizing the property of the spring piece 113 bending under pressure, the difficulty for the worker to insert the connecting part 112 is reduced, and the connection efficiency is improved. Furthermore, a guide slope is provided between the bottom surface and the side surface of the connecting part 112, and the guide slope gradually slopes outward from the bottom surface until the top edge of the guide slope coincides with the side surface of the connecting part 112, and the spring piece 113 is located above the guide slope.

[0051] like Figure 6 and 7 As shown, in another embodiment, the connecting part 112 includes two adjusting blocks 114 and an adjusting rod 115 passing through the two adjusting blocks 114. The top end of the adjusting rod 115 is connected to the hook part 111. The adjusting rod 115 is provided with threads. Both adjusting blocks 114 are provided with threads that mesh with the threads on the adjusting rod 115, and the threads on the two adjusting blocks 114 are in opposite directions. At least one set of opposing sides of the adjusting blocks 114 are also provided with abutment plates 116. Each abutment plate 116 is hinged with two connecting rods 117, and the other ends of the two connecting rods 117 connected to the same abutment plate 116 are respectively hinged to the two adjusting blocks 114.

[0052] The threads on the two adjusting blocks 114 are in opposite directions. When the adjusting rod 115 is rotated in the first direction, the two adjusting blocks 114 will move closer to each other. During the process of moving closer, the abutment plate 116 will move away from the adjusting rod 115 until the outer side of the abutment plate 116 abuts against the side wall of the profile 9. At this point, the connecting part 112 and the profile 9 will be engaged, and the profile 9 will be connected to the hook assembly 11. During the production process, the worker inserts the connecting part 112 into the profile 9 and then rotates the adjusting rod 115 in the first direction to achieve the connection between the hook assembly 11 and the profile 9, reducing the difficulty of connection and improving the connection efficiency.

[0053] When the adjusting rod 115 is rotated in the second direction opposite to the first direction, the two adjusting blocks 114 will move away from each other. During the process of moving away, the abutment plate 116 will move towards the adjusting rod 115. The outer side of the abutment plate 116 will detach from the side wall of the profile 9, and the fit between the connecting part 112 and the profile 9 will be broken. The profile 9 can then be removed from the hook assembly 11. During the production process, the worker can rotate the adjusting rod 115 in the second direction to disconnect the connection between the connecting part 112 and the profile 9, reducing the difficulty of unloading and improving the unloading efficiency.

[0054] Furthermore, an elastic block is provided on the side of the abutment plate 116 that is away from the adjusting block 114.

[0055] The elastic block will deform under the pressure of the side wall of the profile 9, and the elastic block will have the characteristic of returning to its original shape under this state. Therefore, the elastic block has a reaction force on the side wall of the profile 9, thereby realizing the interference fit between the connecting part 112 and the profile 9, strengthening the connection between the connecting part 112 and the profile 9, and ensuring a better connection effect.

[0056] Note that in the description of this specification, references to terms such as "an embodiment," "in other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0057] The above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. An electrostatic spraying production line for composite material profiles, characterized in that: The device includes a moving device (1) for driving the profile to move. Along the moving device (1) from the loading point to the unloading point, there are a dust removal device (2), a spraying device, and a drying device (3). The spraying device includes a first spraying device (4) for spraying conductive liquid and a second spraying device (5) for spraying electrostatic paint. The moving device (1) includes a guide rail (12) and a chain-driven drive structure (13). The hook assembly (11) is hooked to the chain through a connecting ring. The hook assembly (11) includes a hook (111) and a connecting part (112). The connecting part (112) can be embedded in the profile and fix the profile to the hook assembly (11).

2. The electrostatic spraying production line for composite material profiles according to claim 1, characterized in that: The connecting part (112) and the profile are interference fit.

3. The electrostatic spraying production line for composite material profiles according to claim 1, characterized in that: At least one side of the connecting part (112) is provided with a plurality of spring pieces (113). When the connecting part (112) is embedded in the profile, the side of the spring piece (113) away from the connecting part (112) abuts against the inner wall of the profile, and the spring piece (113) will bend.

4. The electrostatic spraying production line for composite material profiles according to claim 1, characterized in that: The connecting part (112) includes two adjusting blocks (114) and an adjusting rod (115) passing through the two adjusting blocks (114). The top end of the adjusting rod (115) is connected to the hook (111). The adjusting rod (115) is provided with threads. Both adjusting blocks (114) are provided with threads that mesh with the threads on the adjusting rod (115), and the threads on the two adjusting blocks (114) are in opposite directions. At least one set of opposing sides of the adjusting block (114) is also provided with abutment plates (116). Each abutment plate (116) is hinged with two connecting rods (117), and the other ends of the two connecting rods (117) connected to the same abutment plate (116) are respectively hinged to the two adjusting blocks (114).

5. The electrostatic spraying production line for composite material profiles according to claim 4, characterized in that: The abutment plate (116) has an elastic block on the side opposite to the adjusting block (114).

6. The electrostatic spraying production line for composite material profiles according to claim 1, characterized in that: The bottom of the hook (111) is provided with a plate (118).

7. The electrostatic spraying production line for composite material profiles according to claim 1, characterized in that: A leveling device (6) is provided between the first spraying device (4) and the second spraying device (5), and a leveling device (6) is also provided between the second spraying device (5) and the drying device (3). The leveling device (6) includes an air supply mechanism (61).

8. The electrostatic spraying production line for composite material profiles according to claim 7, characterized in that: A heating structure (62) is also provided in the leveling device (6) between the second spraying device (5) and the drying device (3).

9. The electrostatic spraying production line for composite material profiles according to claim 1, characterized in that: The connecting ring is connected to the chain, the hook assembly (11) is hung on the connecting ring, and moves along the guide rail (12) under the action of the drive structure (13).

10. An electrostatic spraying production line for composite material profiles according to claim 1, characterized in that: The moving device (1) also includes at least one tensioning structure (14).

Images