Processing method of water-based imitation leather paint puller and corresponding puller structure

Abstract

The application provides a processing method of a water-based imitation leather paint puller and a corresponding puller structure. The processing method of the water-based imitation leather paint puller realizes automation and precise control of the spraying process by using a spraying manipulator to spray different surfaces of the puller. The manipulator can spray according to a preset trajectory and speed, ensuring that the spraying thickness of each puller is uniform, thereby improving the overall aesthetic and durability of the product. The oven is used for baking, and the baking temperature and time are precisely controlled to ensure the complete curing of the epoxy resin color paint, the intermediate coating varnish and the water-based imitation leather paint, and improve the physical properties of the paint layer, such as hardness, wear resistance and corrosion resistance. The preparation process of the intermediate coating varnish and the water-based imitation leather paint, including the selection of raw materials, the mixing ratio and the preparation steps, ensures the stability and consistency of the paint. The water-based paint is more environmentally friendly than traditional solvent-based paint, which meets the current social requirements for environmental protection and sustainable development.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of clothing accessories, in particular to a processing method of a water-based imitation leather paint puller and a corresponding puller structure. BACKGROUND

[0002] In the zipper or other hardware accessory industry that requires surface treatment, the surface treatment of the puller is an important link.

[0003] The traditional puller surface treatment process mostly uses solvent-based paint for spraying. In the spraying link, the traditional technology may rely on manual operation, and the spraying efficiency is low, which is difficult to meet the needs of large-scale production. The preparation process of the intermediate coating varnish and the water-based imitation leather paint is complex, involving the mixing and proportioning of multiple raw materials. The solvent-based paint in the traditional technology releases harmful substances during use, pollutes the environment, and is also not conducive to the health of the operators.

[0004] Therefore, it is necessary to provide a processing method of a water-based imitation leather paint puller and a corresponding puller structure to solve the above technical problems. SUMMARY

[0005] The present application provides a processing method of a water-based imitation leather paint puller and a corresponding puller structure to solve the problem of low manual spraying efficiency and non-environmental-friendly ingredients in the traditional puller surface treatment process of the prior art.

[0006] To solve the above technical problems, the technical scheme of the present application is as follows: a processing method of a water-based imitation leather paint puller, comprising:

[0007] S1: hanging the puller on a screen plate, then hanging the screen plate on a paint spraying device, and spraying different surfaces of the puller by a spraying manipulator;

[0008] S2: spraying epoxy resin color paint;

[0009] S3: baking the epoxy resin color paint to completely cure the epoxy resin color paint and form an epoxy resin color paint layer;

[0010] S4: preparing an intermediate coating varnish, which specifically comprises:

[0011] S41: mixing polyester resin, polyurea resin, polyurethane resin, butyl acetate, ethyl acetate, polyether modified polydimethylsiloxane and polyester modified polydimethylsiloxane to prepare an intermediate coating varnish base;

[0012] S42: adding a curing agent and pure water to the intermediate coating varnish base to prepare the intermediate coating varnish;

[0013] S5: spraying the intermediate coating varnish on the surface of the epoxy resin color paint layer.

[0014] S6: baking the topcoat varnish, placing the puller sprayed with the topcoat varnish into an oven to bake, so that the topcoat varnish is solidified to form a topcoat varnish layer;

[0015] S7: preparing the water-based imitation leather paint, specifically comprising:

[0016] S71: mixing the water-based polyurethane resin, water, silicon dioxide, DPM film-forming agent, polydimethylsiloxane dispersion, polyamide wax, polyether siloxane copolymer and amine neutralizer to prepare a water-based imitation leather paint base;

[0017] S72: adding the curing agent and pure water to the water-based imitation leather paint base to prepare the water-based imitation leather paint;

[0018] S8: spraying the water-based imitation leather paint on the surface of the topcoat varnish layer;

[0019] S9: baking the water-based imitation leather paint, placing the puller sprayed with the water-based imitation leather paint into an oven to bake, so that the water-based imitation leather paint is solidified to form a water-based imitation leather paint layer.

[0020] In the present application, the proportion of the topcoat varnish in S41 is 50-60% of polyester resin, 10-20% of polyurea resin, 10-20% of polyurethane resin, 4-8% of butyl acetate, 4-8% of ethyl acetate, 1-3% of polyether modified polydimethylsiloxane and 1-3% of polyester modified polydimethylsiloxane, by weight percentage.

[0021] In the present application, the ratio of the topcoat varnish base to the curing agent to pure water ranges from 4:1:2 to 4:1:4.

[0022] In the present application, the proportion of the water-based imitation leather paint in S71 is 70-80% of water-based polyurethane resin, 10-20% of water, 2-6% of silicon dioxide, 2-6% of DPM film-forming agent, 0.5-3% of polydimethylsiloxane dispersion, 0.5-3% of polyamide wax, 0.5-3% of polyether siloxane copolymer and 0.1-1% of amine neutralizer, by weight percentage.

[0023] In the present application, the ratio of the water-based imitation leather paint base to the curing agent to pure water ranges from 10:2:1 to 10:2:2.

[0024] In the present application, the paint spraying device comprises:

[0025] A liquid collecting tank is arranged on one side of the support frame for collecting the paint after spraying.

[0026] A support frame is arranged on one side of the liquid collecting tank.

[0027] A rotating disc is arranged above the collecting groove, and the rotating disc is rotationally connected with the support frame, and the screen plate is detachably arranged on the rotating disc, and different surfaces of the puller are sprayed by the spraying manipulator.

[0028] In the present application, the paint spraying device further comprises a first driving member arranged on the support frame, the first driving member being connected with the rotating disc to drive the rotating disc to rotate.

[0029] In the present application, the rotating disc comprises:

[0030] An outer ring is connected with the support frame on both sides;

[0031] A fixing column is arranged on the outer ring, and the fixing column is provided with external threads, and the screen plate is sleeved outside the fixing column;

[0032] A positioning member is sleeved on the fixing column, and the positioning member is located outside the screen plate; and

[0033] A fixing nut is threadedly connected with the fixing column, and the fixing nut is used to define the connecting position of the positioning member and the fixing column.

[0034] In the present application, the positioning member comprises:

[0035] A support piece is located at the top end of the outer ring, and the support piece comprises two oppositely arranged support clamps, the two support clamps are respectively located on both sides of the fixing column, and the frame of the screen plate is located above the support piece;

[0036] A fixing piece is located above the screen plate, and the fixing piece is located below the fixing nut, and the fixing piece is sleeved on the fixing column;

[0037] An extension piece is located outside the frame of the screen plate, and the extension piece is connected with the support piece and the fixing piece.

[0038] The present application further provides a puller structure made by the processing method of the water-based imitation leather paint puller, and the puller structure comprises a puller body, an epoxy resin color paint layer, a middle coating varnish layer and a water-based imitation leather paint layer which are sequentially arranged on the puller body.

[0039] Compared with the prior art, the water-based imitation leather paint puller processing method and the corresponding puller structure have the following beneficial effects: in the water-based imitation leather paint puller processing method and the corresponding puller structure, the water-based imitation leather paint puller processing method realizes the automation and accurate control of the spraying process by using a spraying manipulator to spray different surfaces of the puller. The manipulator can spray according to a preset trajectory and speed, ensuring that the spraying thickness of each puller is uniform, thereby improving the overall aesthetic appearance and durability of the product. The oven is used for baking, and the baking temperature and time are accurately controlled to ensure the complete curing of the epoxy resin color paint, the intermediate coating varnish and the water-based imitation leather paint, and improve the physical properties of the paint layer, such as hardness, wear resistance and corrosion resistance. The preparation process of the intermediate coating varnish and the water-based imitation leather paint, including the selection of raw materials, the mixing ratio and the preparation steps, ensures the stability and consistency of the paint. The water-based paint has the characteristics of low volatile organic compound (VOCs) emission, and is more environmentally friendly than traditional solvent-based paint, which meets the current social requirements for environmental protection and sustainable development.

[0040] In summary, the water-based imitation leather paint puller processing method realizes the automation from puller hanging, spraying, baking to finished product offline. This highly automated processing process not only improves production efficiency, but also reduces errors and uncertainties caused by manual operation. In addition, automated production can reduce labor costs and improve market competitiveness. BRIEF DESCRIPTION OF DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following briefly introduces the drawings needed to be used in the embodiments. The drawings in the following description are only corresponding to some embodiments of the present application.

[0042] Figure 1 Flowchart of the preferred embodiment of the present application.

[0043] Figure 2 Schematic diagram of the screen plate structure of the preferred embodiment of the present application.

[0044] Figure 3 Schematic diagram of the paint spraying device structure of the preferred embodiment of the present application.

[0045] Figure 4 Schematic diagram of the connection structure of the rotating disc and the screen plate of the preferred embodiment of the present application.

[0046] Figure 5 Schematic diagram of the positioning member structure of the preferred embodiment of the present application.

[0047] Figure 6 Local cross-sectional view of the connection structure of the rotating disc and the screen plate of the preferred embodiment of the present application.

[0048] Figure 7 Schematic diagram of the internal structure of the oven of the preferred embodiment of the present application.

[0049] 11, slider; 12, screen; 121, frame; 122, crossbar; 123, plug-in part; 13, paint spraying device; 131, support frame; 1311, fixed rod; 1312, movable rod; 1313, second driving part; 132, rotating disc; 133, liquid collecting groove; 134, spraying manipulator; 135, first driving part; 1321, outer ring; 13211, first through hole; 1322, fixed column; 1323, positioning part; 13231, support piece; 13232, extension piece; 123233, fixed piece; 1324, fixed nut; 14, oven. DETAILED DESCRIPTION

[0050] 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 part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person skilled in the art without creative work fall within the protection scope of the present application.

[0051] In the drawings, similar elements are denoted by the same reference numerals.

[0052] The terms "first", "second", and the like in the present application are only for the purpose of description, and cannot be understood as indicating or implying relative importance, and are not as a limitation on the order.

[0053] Please refer to Figure 1 , wherein Figure 1 is a flowchart of the preferred embodiments of the present application.

[0054] The following is a preferred embodiment of a water-based imitation leather paint slider processing method and corresponding slider structure provided by the present application that can solve the above technical problems.

[0055] The preferred embodiment of the water-based imitation leather paint slider processing method provided by the present application is: a water-based imitation leather paint slider processing method and a slider structure made by the method. The following is a detailed description of the embodiments of the present application.

[0056] I. Water-based imitation leather paint slider processing method

[0057] 1. Hang the slider 11.

[0058] S1: Hang the slider 11 on the screen 12. The screen 12 is designed with a frame 121, a crossbar 122, and a plug-in part 123 to facilitate the fixing and hanging of the slider, as shown in Figure 2 . Then, hang the screen 12 on the support frame 131 of the paint spraying device 13, as shown in Figure 2 -Figure 4 As shown.

[0059] The puller 11 is hung by a special screen plate 12, and the frame 121, crossbar 122 and plug-in part 123 of the screen plate 12 are designed to enable the puller 11 to be firmly fixed on the screen plate 12, avoid moving or falling off during spraying, improve spraying precision, and ensure the stability and uniformity of the puller 11 during spraying. The paint spraying device 13 includes a liquid collecting groove 133, a support frame 131, a rotating disc 132 and other components. The rotating disc 132 is rotationally connected with the support frame 131, and the screen plate 12 is detachably arranged on the rotating disc 132 to facilitate subsequent spraying operation.

[0060] The spraying manipulator 134 can be used to accurately spray different surfaces of the puller 11. The liquid collecting groove 133 collects paint liquid dripping after spraying, and the use of the spraying manipulator 134 realizes accurate spraying of different surfaces of the puller 11, improves spraying efficiency and quality, and reduces the error of manual operation.

[0061] 2. Spraying and baking of epoxy resin color paint.

[0062] S2: Spraying epoxy resin color paint on the surface of the puller to form a basic color layer.

[0063] S3: Placing the puller sprayed with epoxy resin color paint into the oven 14 for baking, as shown. Figure 7 The temperature of the oven 14 is set at 120-150℃, and the time is set at 80-100 minutes to ensure complete curing of the epoxy resin color paint, form a solid epoxy resin color paint layer, improve the durability and adhesion of the puller surface coating, and prevent the coating from falling off or peeling off during use.

[0064] 3. Preparation and spraying of mid-coat varnish.

[0065] S4: Preparing mid-coat varnish, which specifically includes:

[0066] S41: Mixing polyester resin, polyurea resin, polyurethane resin, butyl acetate, ethyl acetate, polyether modified polydimethylsiloxane and polyester modified polydimethylsiloxane to prepare a mid-coat varnish base material.

[0067] According to the weight percentage, the polyester resin is 50%-60%, the polyurea resin is 10%-20%, the polyurethane resin is 10%-20%, the butyl acetate is 4%-8%, the ethyl acetate is 4%-8%, the polyether modified polydimethylsiloxane is 1%-3%, and the polyester modified polydimethylsiloxane is 1%-3%.

[0068] The polyester resin is a saturated resin with long-term durability and stability. It provides a solid foundation for the varnish base, ensuring the hardness, wear resistance, and chemical resistance of the coating. Its lightweight and high-strength characteristics also contribute to overall performance improvement. The polyurea resin is a colorless or light yellow transparent liquid with high elasticity and toughness after curing. The coating made of polyurea resin has strong toughness, insulating air, water resistance, strong density, non-toxicity, odorless curing, and continuity. The addition of polyurea resin improves the elasticity and flexibility of the varnish base, allowing it to better adapt to substrate deformation while enhancing the water resistance and density of the coating. The polyurethane resin is a thermoplastic compound composed of diaminocarbamate, which further enhances the strength and durability of the varnish base while providing good impact resistance and aging resistance. Its lightweight characteristics also help reduce the weight of the coating and improve overall performance.

[0069] Butyl acetate as a solvent ensures uniform dispersion of resin components during spraying, providing good leveling and helping to form a smooth and uniform coating surface. Its moderate evaporation rate also prevents the formation of pinholes or bubbles during drying. Ethyl acetate also has good solubility and volatility, and is relatively safe to use due to its low toxicity. It is also biodegradable, with minimal environmental impact. As an auxiliary solvent, ethyl acetate works together with butyl acetate to further ensure uniform dispersion of resin components and smoothness of the coating. Its environmentally friendly characteristics also align with the development trend of modern coatings industry.

[0070] Polyether-modified polydimethylsiloxane improves the hydrophobicity and anti-fouling performance of the varnish base, contributing to improved durability and aesthetics of the coating. Its elastic properties also help enhance the flexibility of the coating. Polyester-modified polydimethylsiloxane further improves the heat resistance and chemical resistance of the varnish base, allowing it to maintain stable performance in more severe environments.

[0071] In summary, the formulation of the intermediate coating varnish base achieves synergistic effects between various resins, solvents, and modified siloxane components through reasonable proportioning, resulting in excellent performance in hardness, flexibility, wear resistance, chemical resistance, heat resistance, and other aspects. The solvent components ensure uniform dispersion of resin components and good leveling, making the construction process more convenient and efficient. Butyl acetate and ethyl acetate both have good environmental characteristics, meeting the environmental requirements of modern coatings industry.

[0072] S42: Add curing agent and pure water to the base material of the intermediate coating varnish, and the ratio of the base material of the intermediate coating varnish to the curing agent to the pure water ranges from 4:1:2 to 4:1:4, to make the intermediate coating varnish. The addition of the curing agent and the pure water not only saves cost compared to directly using the paint base material, but also enables the intermediate coating varnish to be better cured to form a strong paint film, improving the overall quality of the puller.

[0073] S5: Spray the intermediate coating varnish on the surface of the epoxy resin color paint layer to enhance the adhesion and smoothness of the paint film. The spraying of the intermediate coating varnish enhances the adhesion and smoothness of the paint film, providing a better adhesion surface for the subsequent spraying of the water-based imitation leather paint.

[0074] S6: Place the puller sprayed with the intermediate coating varnish into the oven 14 for baking. The oven 14 is set at a temperature of 120-150℃, and the baking time is 30 minutes, to ensure that the intermediate coating varnish is completely cured to form an intermediate coating varnish layer.

[0075] 4. Preparation and spraying of water-based imitation leather paint.

[0076] S7: Prepare the water-based imitation leather paint. Specifically, it includes:

[0077] S71: Mix the water-based polyurethane resin, water, silicon dioxide (precipitation method), DPM film-forming agent, polydimethylsiloxane dispersion, polyamide wax, polyether siloxane copolymer, and amine neutralizer to make the water-based imitation leather paint base material.

[0078] Among them, the water-based polyurethane resin is 70%-80% by weight, the water is 10%-20% by weight, the silicon dioxide is 2%-6% by weight, the DPM film-forming agent is 2%-6% by weight, the polydimethylsiloxane dispersion is 0.5%-3% by weight, the polyamide wax is 0.5%-3% by weight, the polyether siloxane copolymer is 0.5%-3% by weight, and the amine neutralizer is 0.1%-1% by weight. The water-based imitation leather paint makes the paint film have a leather-like texture, improving the appearance of the puller.

[0079] The water-based polyurethane resin is a polyurethane with water as the dispersion medium, which has high performance, high environmental protection, high hardness, high gloss, high water resistance, etc. As the main component in the formula, the water-based polyurethane resin provides excellent flexibility and wear resistance for the primer, while ensuring the hardness and gloss of the coating. Its high environmental protection also meets the development trend of modern paint industry. Water plays the role of a diluent in the formula, making the primer more easily applied and coated, and the subsequent baking operation also helps to form a strong paint film. Silicon dioxide can improve the flowability and anti-stickiness of the primer, while increasing the hardness and smoothness of the paint film. DPM film former is di propylene glycol methyl ether, which helps to reduce the emission of volatile organic compounds as an additive for water-based paint, meeting environmental protection requirements. DPM film former can promote the plastic flow and elastic deformation of film-forming materials such as water-based polyurethane resin, thereby improving its aggregation performance, so that the paint can form a good film layer in a wide range of application temperatures. This is crucial for water-based imitation leather paint, as it ensures that the paint film can be uniformly and stably cured under various conditions. The addition of DPM film former improves the film performance of water-based imitation leather paint, helping to improve the gloss, flexibility and elasticity of the paint film, so that the paint film has a leather-like texture.

[0080] The polydimethylsiloxane dispersion can significantly improve the water resistance and durability of the paint, while enhancing the wear resistance and chemical corrosion resistance of the coating. Polyamide wax is a coating additive that can reduce surface tension, enhance water resistance and durability. Polyamide wax can make the primer more smooth, reducing the occurrence of shrinkage and peeling of the coating. At the same time, it can also enhance the water resistance and durability of the paint film. Polyether siloxane copolymer can further improve the flexibility and weather resistance of the primer, making the coating more adaptable to various environmental conditions. Amine neutralizer is an additive that can adjust the pH of the paint. The addition of amine neutralizer helps to stabilize the pH of the primer, ensuring that the paint maintains stable performance during application. At the same time, it can also promote the dispersion and dissolution of the paint, improving the uniformity and adhesion of the coating.

[0081] In summary, the water-based imitation leather paint primer has excellent performance in flexibility, hardness, gloss, water resistance, durability, etc. The materials in the formula have good flowability and dispersibility, making the application process more convenient and efficient. At the same time, the adhesion and film-forming property of the primer have been significantly improved. The materials in the formula are all environmentally friendly materials, meeting the environmental protection requirements of modern paint industry.

[0082] S72: Add the curing agent and pure water to the water-based imitation leather paint base, and the ratio of the water-based imitation leather paint base to the curing agent to the pure water ranges from 10:2:1 to 10:2:2, to make the water-based imitation leather paint. The addition of the curing agent and the pure water not only saves the cost of the paint base, but also enables the water-based imitation leather paint to be better cured to form a paint film with an imitation leather texture, thereby improving the overall aesthetic appearance and texture of the puller.

[0083] S8: Spray the water-based imitation leather paint on the surface of the mid-coat varnish layer to form a paint layer with an imitation leather texture.

[0084] S9: Place the puller sprayed with the water-based imitation leather paint into the oven 14 for baking. The temperature of the oven 14 is set at 100-130°C, and the baking time is 60-90 minutes, to ensure that the water-based imitation leather paint is completely cured to form a water-based imitation leather paint layer.

[0085] The structure of the screen plate 12 in the embodiment will be described:

[0086] In combination with Figure 2 and Figure 4 , the screen plate 12 in the embodiment includes a frame 121, a horizontal rod 122, and a plurality of plug-in parts 123. The frame 121 is a rectangular frame structure, and the horizontal rod 122 is arranged in the frame 121. The plurality of plug-in parts 123 are uniformly and spacedly arranged on the horizontal rod 122, which improves the efficiency of batch spraying of the puller.

[0087] Further, the horizontal rod 122 is provided with a plurality of single horizontal rods 122, and the two ends of each single horizontal rod 122 are connected to the width direction of the frame 121. The plurality of horizontal rods 122 are arranged along the length direction of the frame 121, which further improves the efficiency of batch spraying of the puller.

[0088] The paint spraying device 13 in the embodiment will be described in detail as follows:

[0089] In combination with Figure 3 - Figure 6 , the paint spraying device 13 includes a support frame 131, a rotating disc 132, a liquid collecting groove 133, and a spraying manipulator 134. The rotating disc 132 is rotationally connected to the support frame 131, and is used to place the screen plate 12. The screen plate 12 is detachably installed on the rotating disc 132, and can be laid flat on the rotating disc 132. The spraying manipulator 134 is used to spray different surfaces of the puller through three-axis rotation, thereby realizing omnidirectional paint spraying of the puller.

[0090] Further, the paint spraying device 13 further includes a first driving member 135, which is arranged on the support frame 131 and connected to the rotating disc 132. The first driving member 135 drives the rotating disc 132 to rotate, and cooperates with the spraying manipulator 134 to further improve the paint spraying efficiency of the device on the puller.

[0091] The rotating disc 132 comprises an outer ring 1321, a fixed column 1322, a positioning member 1323, and a fixed nut 1324. The outer ring 1321 is rotatably connected to the two sides of the outer ring 1321, and the outer ring 1321 is connected to the first driving member 135. The fixed column 1322 is arranged on the outer ring 1321, and the fixed column 1322 is provided with external threads. The mesh plate 12 is sleeved on the outer side of the fixed column 1322. The positioning member 1323 is arranged on the outer side of the mesh plate 12, and the positioning member 1323 is sleeved on the fixed column 1322. The fixed nut 1324 is threadedly connected with the fixed column 1322, and the fixed nut 1324 locks the connection position of the positioning member 1323 and the fixed column 1322, so as to avoid loosening and falling of the positioning member 1323. The design of the rotating disc 132 enables the mesh plate 12 to be firmly mounted on the rotating disc 132, and facilitates disassembly and replacement, thereby improving the flexibility of the spraying operation.

[0092] The outer ring 1321 in the embodiment is provided with a plurality of first through holes 13211. The fixed column 1322 is detachably connected with the first through holes 13211, so as to facilitate adjustment and assembly of the position of the fixed column 1322 according to different sizes of the mesh plate 12. The specific connection mode can be threadedly connected, or detachably fixed through a nut or the like, which will not be described herein.

[0093] The positioning member 1323 in the embodiment comprises a support sheet 13231, an extension sheet 13232, and a fixed sheet 123233. The support sheet 13231 is located at the top end of the rotating disc 132. The support sheet 13231 comprises two oppositely arranged support clamps, which are respectively located on the two sides of the fixed column 1322. The frame 121 of the mesh plate 12 is located above the support sheet 13231, so as to define the position of the support sheet 13231 and the mesh plate 12. The fixed sheet 123233 is located above the mesh plate 12 and below the fixed nut 1324. The fixed sheet 123233 is provided with a second through hole in the middle, and the fixed sheet 123233 is sleeved on the fixed column 1322 through the second through hole. The extension sheet 13232 is located outside the frame 121 of the mesh plate 12. The extension sheet 13232 connects the support sheet 13231 and the fixed sheet 123233. The frame 121 is positioned and fixed between the extension sheet 13232 and the fixed column 1322, so as to avoid falling of the mesh plate 12 from the outer ring 1321.

[0094] The support frame 131 in the embodiment comprises a fixed rod 1311 and a movable rod 1312. One end of the movable rod 1312 is rotatably connected with the fixed rod 1311, and the other end of the movable rod 1312 is rotatably connected with the rotating disc 132. The rotating support is adjusted to different angles, so that the position of the rotating disc 132 can be adjusted up and down, thereby facilitating the up and down operation of the mesh plate 12.

[0095] Further, the supporting frame 131 can be further provided with a second driving member 1313, which is arranged on the fixed rod 1311 and connected with the movable rod 1312, and drives the movable rod 1312 to rotate relative to the fixed rod 1311.

[0096] In this way, the processing of the water-based imitation leather paint puller is completed.

[0097] The first driving member and the second driving member in the embodiment can adopt rotating motors, rotating cylinders or other equivalent driving structures, which all have mature technical basis and can stably and accurately realize the required driving function. Meanwhile, the spraying manipulator 134 is designed as a three-axis driven mechanical arm structure, which has been widely applied in the field of automatic spraying and can meet the requirements of high-precision spraying in terms of motion control and positioning accuracy, and thus will not be described here.

[0098] The application further provides a puller structure made by the processing method of the water-based imitation leather paint puller, which comprises a puller body and an epoxy resin color paint layer, a middle coating varnish layer and a water-based imitation leather paint layer arranged on the puller body in sequence. The puller structure has the imitation leather texture, beautiful appearance, good adhesion and wear resistance. The epoxy resin color paint layer provides the basic color and adhesion; the middle coating varnish layer enhances the adhesion and smoothness of the paint film; and the water-based imitation leather paint layer gives the puller the imitation leather texture and improves the overall appearance and market competitiveness of the product.

[0099] To sum up, although the application has been disclosed by the preferred embodiments as above, the preferred embodiments are not used to limit the application, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the application, so the protection scope of the application is subject to the scope defined by the claims.

Claims

1. A processing method for a water-based imitation leather paint zipper pull, characterized in that, include: S1: Hang the zipper head on the mesh plate, then hang the mesh plate on the spray painting device, and use the spray painting robot to spray different sides of the zipper head; S2: Spraying epoxy resin paint; S3: Bake the epoxy resin paint to fully cure it and form an epoxy resin paint layer. S4: Preparation of intermediate coat varnish, specifically including: S41: A mixture of polyester resin, polyurea resin, polyurethane resin, butyl acetate, ethyl acetate, polyether-modified polydimethylsiloxane, and polyester-modified polydimethylsiloxane is used to prepare a mid-coat clear varnish primer. S42: Add a curing agent and pure water to the intermediate clear varnish base to prepare the intermediate clear varnish; S5: Spraying intermediate clear varnish, spraying the intermediate clear varnish onto the surface of the epoxy resin paint layer; S6: Baking the intermediate clear coat: Place the zipper head coated with the intermediate clear coat into the oven to bake, so that the intermediate clear coat can be cured and form an intermediate clear coat layer. S7: Preparation of water-based imitation leather paint, specifically including: S71: A water-based imitation leather base is prepared by mixing waterborne polyurethane resin, water, silica, DPM film-forming agent, polydimethylsiloxane dispersion, polyamide wax, polyether siloxane copolymer and amine neutralizer. S72: Add a curing agent and pure water to the water-based imitation leather paint primer to prepare the water-based imitation leather paint; S8: Spraying water-based imitation leather paint: Spraying the water-based imitation leather paint onto the surface of the intermediate clear coat layer; S9: Baking water-based imitation leather paint: Place the zipper head coated with water-based imitation leather paint into an oven to bake, so that the water-based imitation leather paint can be cured and form a water-based imitation leather paint layer.

2. The processing method of the water-based imitation leather paint zipper pull according to claim 1, characterized in that, By weight percentage, the intermediate clear coat in S41 comprises 50%–60% polyester resin, 10%–20% polyurea resin, 10%–20% polyurethane resin, 4%–8% butyl acetate, 4%–8% ethyl acetate, 1%–3% polyether-modified polydimethylsiloxane, and 1%–3% polyester-modified polydimethylsiloxane.

3. The processing method of the water-based imitation leather paint zipper pull according to claim 2, characterized in that, The ratio of the intermediate clear varnish primer to the curing agent to pure water ranges from 4:1:2 to 4:1:

4.

4. The processing method of the water-based imitation leather paint zipper pull according to claim 1, characterized in that, By weight percentage, the water-based imitation leather paint in S71 comprises 70%–80% water-based polyurethane resin, 10%–20% water, 2%–6% silica, 2%–6% DPM film-forming agent, 0.5%–3% polydimethylsiloxane dispersion, 0.5%–3% polyamide wax, 0.5%–3% polyether siloxane copolymer, and 0.1%–1% amine neutralizer.

5. The processing method of the water-based imitation leather paint zipper pull according to claim 4, characterized in that, The ratio of the water-based imitation leather paint primer to the curing agent to pure water ranges from 10:2:1 to 10:2:

2.

6. The processing method of the water-based imitation leather paint zipper pull according to claim 1, characterized in that, The painting device includes: A collection tank is used to collect the paint residue after spraying. The support frame is located on one side of the liquid collection tank; A rotating disc is located above the liquid collection tank, and the rotating disc is rotatably connected to the support frame. The screen plate is detachably mounted on the rotating disc, and different surfaces of the pull head are sprayed by a spraying robot.

7. The processing method of the water-based imitation leather paint zipper pull according to claim 6, characterized in that, The painting device also includes a first driving component, which is mounted on a support frame and connected to a rotating disk to drive the rotating disk to rotate.

8. The processing method of the water-based imitation leather paint zipper pull according to claim 7, characterized in that, The rotating disk includes: The outer ring is connected to the support frame on both sides; A fixing post is provided on the outer ring, and the fixing post is provided with external threads; the mesh plate is sleeved on the outside of the fixing post. A positioning element, sleeved on a fixed post, is located on the outer side of the mesh plate; and A fixing nut is threadedly connected to the fixing post, and the fixing nut is used to define the connection position between the positioning element and the fixing post.

9. The processing method of the water-based imitation leather paint zipper pull according to claim 8, characterized in that, The positioning element includes: A support plate is located at the top of the outer ring. The support plate includes two opposing support clips, which are respectively located on both sides of the fixing post. The frame of the mesh plate is located above the support plate. A fixing plate is located above the mesh plate and below the fixing nut, and the fixing plate is sleeved on the fixing post; An extension piece is located on the outer side of the frame of the mesh plate, and the extension piece connects the support piece and the fixing piece.

10. A slider structure, characterized in that, The zipper pull is manufactured by the processing method of any one of claims 1-9, wherein the zipper pull structure includes a zipper pull body and an epoxy resin paint layer, a mid-coat clear varnish layer and a water-based imitation leather paint layer sequentially disposed on the zipper pull body.

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