Spraying process and device

Abstract

The invention relates to the technical field of spraying equipment, in particular to a spraying technology and device.S1, primer is sprayed firstly, and the spraying parameters are that the spraying distance is 60 mm, and the spraying speed is 80 mm / s; s2, after the primer is sprayed, finish paint is directly sprayed, and the spraying parameters are that the spraying distance is 40 mm, and the spraying speed is 60 mm / s; s3, the redundant primer and finish paint are recycled; s4, after spraying is completed, drying and air drying are conducted; and S4, the dried paint layer is polished. Automatic clamping and positioning of materials are completed through the downward moving and transmission effects of the spraying frame, meanwhile, the spraying faces of the materials are pretreated through the rotating spraying action of the spraying frame, redundant paint is sucked away, and the spraying faces are pre-dried and air-dried, the overall machining time is shortened, and meanwhile the production quality is improved.

Description

Technical Field

[0001] This invention relates to the field of spraying equipment technology, and more specifically to a spraying process and apparatus. Background Technology

[0002] Processing food is a common activity in people's lives, aimed at maintaining people's basic needs and ensuring their health. Cookware is often used when processing food, and non-stick pans are one of them. Non-stick pans are coated with Teflon and ceramic coatings to ensure excellent performance during use.

[0003] Existing etching pans lack positioning components during spraying, or their positioning efficiency is low. Secondly, the spraying and drying processes in etching pans are separate, usually requiring air drying, which is inefficient. Additionally, undried paint may flow under its own weight, resulting in uneven spray thickness. Furthermore, existing painting equipment sprays a relatively thick layer, requiring subsequent sanding to thin it out, which not only wastes paint but also increases the workload later on. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a spraying process and apparatus that can effectively solve the problems of low clamping efficiency and low drying efficiency after spraying in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a spraying process and apparatus, comprising the following steps: S1: First, spray the primer. The spraying parameters are: spraying distance 60mm and spraying speed 80 mm / s. S2: After spraying the primer, spray the topcoat directly. The spraying parameters are: spraying distance 40mm and spraying speed 60mm / s. S3: Recycle excess primer and topcoat; S4: After spraying, dry and air dry; S4: Sand the dried paint layer.

[0006] A spraying apparatus, used in the aforementioned spraying process, includes a processing table, materials placed on the processing table, and a fixed frame located above the processing table, and further includes: The clamping assembly includes two clamping frames movably mounted on a processing table. A lifting plate is movably mounted on the bottom of the fixed frame, and a telescopic tube is rotatably mounted on the lifting plate. When the lifting plate moves down, the two clamping frames move closer to each other. A composite spraying assembly includes a spraying frame installed at the bottom of a telescopic tube. The spraying frame is arc-shaped, with a heat dissipation plate on one side and a drying rack on the other side. A recycling rack is provided between the heat dissipation plate and the spraying frame. A transmission component is provided on the fixed frame. When the telescopic tube drives the spraying frame to rotate, the transmission component enables the drying rack to continuously blow out hot air, and the recycling rack to continuously absorb excess paint.

[0007] Furthermore, a servo motor for driving the telescopic tube to rotate is installed on the top wall of the fixed frame, and an electric push rod for driving the lifting plate to move up and down is installed on the fixed frame.

[0008] Furthermore, the clamping assembly also includes sliding plates symmetrically and movably mounted on both sides of the processing table. Each of the two sliding plates is fixedly mounted with a mounting bracket. The mounting bracket is provided with a second piston tube, and a second piston rod is movably inserted into each of the second piston tubes. The two clamping brackets are respectively fixedly connected to the two second piston rods in a one-to-one correspondence.

[0009] Furthermore, two first piston tubes are symmetrically installed on the bottom wall of the processing table. Each of the two first piston tubes is provided with a first piston rod, and the two first piston rods are fixedly connected to the two sliding plates in a one-to-one correspondence. The two first piston tubes are connected to the two second piston tubes in a one-to-one correspondence. When the two sliding plates move away from each other, the two clamping frames move further away from each other.

[0010] Furthermore, a connecting plate is rotatably mounted on the telescopic tube, and the connecting plate and the spraying frame are raised and lowered synchronously. An air box is fixedly mounted on the bottom wall of the fixed frame, and an air rod is movably inserted into the bottom wall of the air box, with a sealing plate on the air rod. A flow divider is fixedly mounted on the bottom wall of the processing table, and a first connecting pipe connects the flow divider and the air box, and the flow divider is connected to two first piston pipes respectively.

[0011] Furthermore, the heat sink plate has a heating chamber, the heating chamber has a heating wire, the heating chamber is connected to the drying rack, the drying rack has multiple air outlets, the composite spraying assembly also includes a transmission box installed on the top of the fixed frame, the transmission box has a third piston tube, a third piston rod is movably inserted into the third piston tube, and the third piston tube is connected to the heating chamber.

[0012] Furthermore, the top and bottom ends of the third piston tube are respectively connected to the first and second air outlet pipes, and a main air outlet pipe is connected between the first and second air outlet pipes, which is connected to the heating chamber.

[0013] Furthermore, the top and bottom ends of the third piston tube are respectively connected to the first suction pipe and the second suction pipe, and the first suction pipe and the second suction pipe are connected to a main suction pipe, which is connected to the recovery rack.

[0014] Furthermore, the top end of the telescopic tube rotates through into the transmission box, the transmission component includes a reciprocating lead screw rotatably installed in the transmission box, a second gear is provided on the reciprocating lead screw, a first gear adapted to the second gear is provided on the telescopic tube, a transmission frame is slidably installed in the transmission box, the transmission frame is provided with a threaded hole adapted to the reciprocating lead screw, and the third piston rod is fixedly connected to the transmission frame.

[0015] Furthermore, a spraying groove is provided on the side wall of the spraying frame, a protective ring is provided on the inner ring of the clamping frame, a collection groove is provided on the protective ring, and a recycling pipe is connected to the outside of the collection groove.

[0016] Furthermore, a loading and unloading assembly is provided on one side of the processing table for placing materials on or removing materials from the processing table.

[0017] The technical solution provided by this invention has the following advantages compared with the known prior art: The automatic clamping and positioning of materials is achieved by the downward movement and transmission of the spraying frame. At the same time, the rotation and spraying action of the spraying frame is used to pre-treat the spraying surface of the material, including sucking away excess paint, pre-drying and air-drying the spraying surface, reducing the overall processing time and improving production quality. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0019] Figure 1 This is an overall schematic diagram of the present invention; Figure 2 This is a front view of the present invention; Figure 3 This is a structural schematic diagram of the clamping component. Figure 4 This is a structural schematic diagram of the composite spraying assembly. Figure 5 This is a structural schematic diagram of the transmission assembly. Figure 6 This is a schematic diagram of the piston tube's motion. Figure 7 This is a schematic diagram showing the direction of material loading and unloading.

[0020] The labels in the diagram represent: 1. Processing table; 2. Material; 3. Fixing frame; 4. Spraying frame; 401. Spraying tank; 5. Telescopic tube; 6. Transmission box; 7. Servo motor; 8. Electric actuator; 9. Lifting plate; 10. Linkage plate; 11. Air box; 12. Air rod; 13. First piston tube; 14. First piston rod; 15. Sliding plate; 16. Mounting frame; 17. Second piston tube; 18. Second piston rod; 19. Clamping device. 20. Frame; 21. Protective ring; 22. First connecting pipe; 23. Diverter box; 24. Heat sink; 25. Drying rack; 26. First gear; 27. Second gear; 28. Reciprocating screw; 29. ​​Transmission frame; 30. Third piston tube; 31. Third piston rod; 32. Rotating ring; 33. Main exhaust pipe; 34. Main intake pipe; 35. First exhaust pipe; 36. Second intake pipe; 37. Second exhaust pipe. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0022] The present invention will be further described below with reference to embodiments.

[0023] Example 1: A spraying process includes the following steps: S1: First, spray the primer. The spraying parameters are: spraying distance 60mm and spraying speed 80 mm / s. S2: After spraying the primer, spray the topcoat directly. The spraying parameters are: spraying distance 40mm and spraying speed 60mm / s. S3: Recycle excess primer and topcoat; S4: After spraying, dry and air dry; S4: Sand the dried paint layer.

[0024] Example 2: refer to Figure 1A spraying device for two spraying processes includes a processing table 1, a material 2 placed on the processing table 1, and a fixed frame 3 located above the processing table 1. It also includes a clamping assembly comprising two clamping frames 19 movably mounted on the processing table 1. A lifting plate 9 is movably mounted on the bottom of the two fixed frames 3, and a telescopic tube 5 is rotatably mounted on the two lifting plates 9. A servo motor 7 for driving the telescopic tube 5 to rotate is mounted on the top wall of the two fixed frames 3. An electric push rod 8 for driving the lifting plates 9 to move up and down is mounted on the two fixed frames 3. When the two lifting plates 9 move down, the two clamping frames 19 move closer to each other. The clamping assembly also includes symmetrical movable... Sliding plates 15 are movably mounted on both sides of the machining table 1. Each sliding plate 15 has a mounting bracket 16 fixedly mounted on it. Each mounting bracket 16 has a second piston tube 17, and each second piston tube 17 has a second piston rod 18 movably inserted into it. Clamping brackets 19 are fixedly connected to the second piston rods 18 one-to-one. Two first piston tubes 13 are symmetrically mounted on the bottom wall of the machining table 1. Each first piston tube 13 has a first piston rod 14, and the two first piston rods 14 are fixedly connected to the two sliding plates 15 one-to-one. The two first piston tubes 13 and the two second piston tubes 17 are paired one-to-one. When the two sliding plates 15 move away from each other, the two clamping frames 19 move further away from each other. Spraying grooves 401 are provided on the side walls of the two spraying frames 4. Protective rings 20 are provided on the inner rings of the two clamping frames 19, and collection grooves are provided on the two protective rings 20. A recovery pipe is connected to the outside of the collection grooves. To facilitate the recovery of paint from the collection grooves, a recovery box can be connected externally. The recovery box is connected to the second piston tube 17, which has an air outlet. An air inlet pipe connects the second piston tube 17 and the recovery box. Air is drawn from the recovery box by sliding the second piston rod 18, thus extracting residual paint from the collection grooves. The collection trough needs to be tilted towards the interface with the recycling box. A connecting plate 10 is rotatably installed on the two telescopic pipes 5, and the connecting plate 10 and the spraying frame 4 are raised and lowered synchronously. An air box 11 is fixedly installed on the bottom wall of the two fixed frames 3. An air rod 12 is movably inserted into the bottom wall of the two air boxes 11, and a sealing plate is provided on the air rod 12. A diversion box 22 is fixedly installed on the bottom wall of the two processing tables 1. A first connecting pipe 21 is connected between the two diversion boxes 22 and the air box 11, and the diversion box 22 is connected to the two first piston pipes 13 respectively. A loading and unloading assembly is provided on one side of the two processing tables 1 for placing the material 2 on the processing table or removing the material 2 from the processing table 1.

[0025] After the two etching pots of material 2 are placed on the processing table 1, the loading and unloading components can be robotic arms. The robotic arms are used to assist in loading and unloading the etching pots. It is worth noting that the robotic arms should hold the outer wall of the etching pot and should not touch the inner wall of the etching pot to avoid affecting the coating effect.

[0026] Subsequently, the electric actuator 8 drives the lifting plate 9 to move downward, which in turn moves the telescopic tube 5 and the spraying frame 4 downward. The lifting plate 9 drives the air rod 12 downward. When the air rod 12 moves downward, it forces the air inside the air box 11 into the distribution box 22 through the first connecting pipe 21. The distribution box 22 distributes the air to the two first piston tubes 13. Under the action of air pressure, the two first piston rods 14 slide in the first piston tubes 13, causing the two sliding plates 15 and the mounting brackets 16 to move closer to each other. During the process of the first piston rods 14 sliding into the first piston tubes 13, another part of them connects with the second piston tube 17. Under the action of air pressure, the second piston rods 18 will move outward from the second piston tube 17. That is, when the two mounting brackets 16 move closer to each other, the two clamping brackets 19 will move closer to each other, and when the two mounting brackets 16 move away from each other, the two clamping brackets 19 will move further away from each other. This can improve the efficiency of clamping and releasing, and at the same time save more space. Under the aforementioned clamping action, the etching pot is quickly positioned.

[0027] Example 3: refer to Figure 4The composite spraying assembly includes two spraying frames 4 mounted at the bottom of a telescopic tube 5. The two spraying frames 4 are arc-shaped, and each spraying frame 4 has a heat sink 23 on one side. A heating chamber is formed within the heat sink 23, and a heating wire is installed in the heating chamber. The heating chamber is connected to a drying rack 24, which has multiple air outlets. The composite spraying assembly also includes a transmission box 6 mounted on the top of a fixed frame 3. A third piston tube 29 is installed in the transmission box 6, and a third piston rod 30 is movably inserted into the third piston tube 29. The third piston tube 29 is connected to the heating chamber. The top and bottom ends of the third piston tube 29 are respectively connected to a first air outlet 35 and a second air outlet 37. A common air outlet 33 is connected between the first air outlet 35 and the second air outlet 37, and the common air outlet 33 is connected to the heating chamber. A drying rack 24 is located on one side of the heat sink 23. The heat sink 23 and... A recovery rack is provided between the spraying racks 4. The top and bottom ends of the two third piston tubes 29 are respectively connected to the first suction pipe 34 and the second suction pipe 36. The two first suction pipes 34 and the two suction pipes 36 are connected to the main suction pipe 32. The main suction pipe 32 is connected to the recovery rack. The two fixed frames 3 are provided with a transmission component. When the two telescopic pipes 5 drive the spraying rack 4 to rotate, the drying rack 24 is continuously blown out hot air through the transmission component, and the recovery rack continuously sucks up excess paint. The top of the two telescopic pipes 5 rotates through into the transmission box 6. The two transmission components include a reciprocating screw 27 rotatably installed in the transmission box 6. The two reciprocating screws 27 are provided with a second gear 26. The two telescopic pipes 5 are provided with a first gear 25 adapted to the second gear 26. The two transmission boxes 6 are slidably installed with a transmission frame 28. The two transmission frames 28 are provided with a threaded hole adapted to the reciprocating screw 27. The two third piston rods 30 and the transmission frame 28 are fixedly connected.

[0028] After determining the position of the etching pot and the spraying rack 4, the arc shape of the spraying rack 4 is adapted to the inner wall contour of the etching pot. Placing the spraying nozzle in the spraying tank 401 prevents the spraying area from becoming too large and controls the spraying accuracy, as the spraying thickness is required. A recovery rack is also provided on one side of the spraying rack 4, and a heat sink 23 and a drying rack 24 are provided on the other side of the recovery rack. Figure 4 As shown, the shapes of the heat sink 23 and the drying rack 24 are adapted to the inner wall contour of the etching pot, but they do not contact the inner wall of the etching pot. The distance between the recycling rack and the inner wall of the etching pot is very close but not in contact, and the distance is slightly greater than the required coating thickness. In this way, the coating thickness after recycling will be close to the required thickness, which can reduce the difficulty and time of polishing after drying, thereby improving production efficiency and production quality.

[0029] The specific heat dissipation and recycling methods are as follows: the servo motor 7 drives the telescopic tube 5 to rotate, the telescopic tube 5 drives the spray frame 4 to rotate at a constant speed, and at the same time, the rotation of the telescopic tube 5 also drives the first gear 25, such as... Figure 5 As shown, during the rotation of the first gear 25, it drives the second gear 26. The transmission ratio between the first gear 25 and the second gear 26 is relatively large, resulting in a faster rotation speed of the second gear 26. The second gear 26 drives the reciprocating screw 27 to rotate. The reciprocating screw 27 drives the transmission frame 28 to slide back and forth in the transmission box 6 through threaded transmission. During the up and down sliding of the transmission frame 28, the third piston rod 30 below it slides back and forth in the third piston tube 29, as shown in the figure. Figure 6 As shown, when the third piston rod 30 moves upward, the second suction pipe 36 draws in air and the first exhaust pipe 35 discharges air; when the third piston rod 30 moves downward, the first suction pipe 34 draws in air and the second exhaust pipe 37 discharges air. This ensures that regardless of whether the third piston rod 30 moves upward or downward, the main suction pipe 33 will always draw in air and the main exhaust pipe 32 will always discharge air. The heat sink 23 is used to dry the scraped paint, followed by air drying. This prevents uneven paint layer thickness and improves production quality. A recycling box is installed on the main suction pipe 33 for easy paint recycling.

[0030] It is worth noting that, such as Figure 5 As shown in the diagram, a rotating ring 31 is rotatably connected to the telescopic tube 5. While the two are rotatably connected, they are also connected to each other, which allows gas to flow. Furthermore, a sealed bearing connects the two, so that the third piston tube 29 and the external first suction tube 34 and second suction tube 36 are all connected to the rotating ring 31.

[0031] Example 3: Each spraying operation can only use one type of paint. Therefore, for processes that require multiple layers of paint, multiple spraying stations can be set up. The spraying method and the paint recycling can be done in the same way, while different stations can use different methods.

[0032] The above-mentioned equipment is also applicable to thermos cups. It is only necessary to adjust the shape of the spray frame 4 and scraper, etc. The specific replacement structure is adjusted according to the actual situation.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A spraying process, comprising the following steps, characterized in that, S1: First, spray the primer. The spraying parameters are: spraying distance 60mm and spraying speed 80 mm / s. S2: After spraying the primer, spray the topcoat directly. The spraying parameters are: spraying distance 40mm and spraying speed 60mm / s. S3: Recycle excess primer and topcoat; S4: After spraying, dry and air dry; S4: Sand the dried paint layer.

2. A spraying apparatus, applied to the spraying process of claim 1, comprising a processing table, material placed on the processing table, and a fixed frame located above the processing table, characterized in that, Also includes: The clamping assembly includes two clamping frames movably mounted on a processing table. A lifting plate is movably mounted on the bottom of the fixed frame, and a telescopic tube is rotatably mounted on the lifting plate. When the lifting plate moves down, the two clamping frames move closer to each other. A composite spraying assembly includes a spraying frame installed at the bottom of a telescopic tube. The spraying frame is arc-shaped, with a heat dissipation plate on one side and a drying rack on the other side. A recycling rack is provided between the heat dissipation plate and the spraying frame. A transmission component is provided on the fixed frame. When the telescopic tube drives the spraying frame to rotate, the transmission component enables the drying rack to continuously blow out hot air, and the recycling rack to continuously absorb excess paint.

3. The spraying device according to claim 2, characterized in that, A servo motor for driving the telescopic tube to rotate is installed on the top wall of the fixed frame, and an electric push rod for driving the lifting plate to move up and down is installed on the fixed frame.

4. A spraying device according to claim 3, characterized in that, The clamping assembly also includes sliding plates symmetrically and movably installed on both sides of the processing table. Each of the two sliding plates is fixedly mounted with a mounting bracket. The mounting bracket is provided with a second piston tube, and a second piston rod is movably inserted into each of the second piston tubes. The two clamping brackets are respectively fixedly connected to the two second piston rods in a one-to-one correspondence.

5. A spraying apparatus according to claim 4, characterized in that, Two first piston tubes are symmetrically installed on the bottom wall of the processing table. Each of the two first piston tubes is provided with a first piston rod, and the two first piston rods are fixedly connected to the two sliding plates in a one-to-one correspondence. The two first piston tubes are connected to the two second piston tubes in a one-to-one correspondence. When the two sliding plates move away from each other, the two clamping frames move further away from each other.

6. A spraying apparatus according to claim 5, characterized in that, A connecting plate is rotatably mounted on the telescopic tube, and the connecting plate and the spraying frame are raised and lowered synchronously. An air box is fixedly mounted on the bottom wall of the fixed frame, and an air rod is movably inserted into the bottom wall of the air box, with a sealing plate on the air rod. A flow divider is fixedly mounted on the bottom wall of the processing table, and a first connecting pipe connects the flow divider and the air box, and the flow divider is connected to two first piston pipes respectively.

7. A spraying device according to claim 2, characterized in that, The heat sink has a heating chamber, which contains a heating wire. The heating chamber is connected to the drying rack, which has multiple air outlets. The composite spraying assembly also includes a transmission box mounted on the top of the fixed frame. The transmission box contains a third piston tube, on which a third piston rod is movably inserted. The third piston tube is connected to the heating chamber.

8. A spraying apparatus according to claim 7, characterized in that, The top and bottom ends of the third piston tube are respectively connected to the first and second air outlets, and a main air outlet is connected between the first and second air outlets, which is connected to the heating chamber.

9. A spraying apparatus according to claim 7, characterized in that, The top and bottom ends of the third piston tube are respectively connected to the first and second suction pipes. The first and second suction pipes are connected to a main suction pipe, which is connected to the recovery rack.

10. A spraying apparatus according to claim 7, characterized in that, The top end of the telescopic tube rotates through into the transmission box. The transmission component includes a reciprocating lead screw rotatably installed in the transmission box. The reciprocating lead screw is provided with a second gear. The telescopic tube is provided with a first gear adapted to the second gear. A transmission frame is slidably installed in the transmission box. The transmission frame is provided with a threaded hole adapted to the reciprocating lead screw. The third piston rod is fixedly connected to the transmission frame.

11. A spraying apparatus according to claim 2, characterized in that, The spraying rack has a spraying groove on its side wall, the clamping frame has a protective ring on its inner ring, the protective ring has a collection groove, and the collection groove is connected to a recycling pipe.

12. A spraying device according to claim 2, characterized in that, The processing table is equipped with a loading and unloading assembly on one side, which is used to place materials on the processing table or remove materials from the processing table.

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