Process for laminating multi-layered sanding and spraying shielding film

Abstract

The application relates to the field of sand blasting technology and discloses a process for multi-layered sanding of a film covering, which uses a sand blasting device, wherein the sand blasting device comprises a workbench, symmetrical block two and symmetrical block three are connected to the workbench, a pressure roller is connected to the symmetrical block two, a horizontal rod is connected to the symmetrical block three, a sleeve pipe is slidably connected to the horizontal rod, film winding wheels are connected to the two ends of the sleeve pipe, a balance rod is slidably connected to a side plate, a clamping strip is connected to one end of the balance rod, a connecting rod is connected to the clamping strip, clamping springs are sleeved on the connecting rod, and the clamping springs are fixedly connected between the clamping strips. The pressure roller structure is used to firmly press and adhere the protective film to the surface of the shell, the probability of sand particles entering the edge of the protective film is reduced, the vertically reciprocating spray gun structure is adopted, the probability of sand particles entering the edge of the protective film is reduced due to the inclination of the spray gun, and the accuracy of the sand blasting operation is improved.

Description

Technical Field

[0001] This invention relates to the field of sandblasting technology, and more particularly to a process for multi-layer masking and sandblasting with film. Background Technology

[0002] The technology for surface treatment of laptop shells has gradually matured. The surface of the shell without treatment has the texture of the raw material. It is necessary to use a spray gun on the equipment to spray fine sand particles onto the surface of the shell. This action is called sandblasting. The material texture of the shell surface is covered, and the entire shell surface has a fine sand particle effect. It feels slightly rough to the touch. Then the laptop shell is put into an anodizing process for dyeing.

[0003] Current sandblasting processes involve spraying sand particles onto the casing in a single pass. The spray gun continuously sprays sand back and forth on the product using high-pressure airflow. It is impossible to follow a specific path on the casing to spray sand particles onto the surface. Even if the spray gun can follow a designated path, the sprayed sand will spread out in a fan shape due to the wind, making it impossible to precisely and effectively control the size of the sprayed area. This makes it impossible to define standards for mass production.

[0004] If a protective film is pasted on the surface of the shell during the blasting process, and then part of the protective film is torn off after the film is cut, and then the shell is put into the sandblasting process, some sand particles will penetrate into the edge of the protective film due to the spray gun. This edge is the edge where the film was torn off after the film was cut. Therefore, it is not possible to effectively prevent sand from entering the film, and the surface cannot be made into a precise sandblasting pattern.

[0005] Because the protective film on the shell can cause sand to get in, it is impossible to create a sense of layering of sand particles. For example, if a part is sandblasted multiple times, the first, second and even third times may use different grits or the same grit to spray the shell surface. The overlapping areas will have different shades and grits of sand particles visually due to the number of sandblasting times and the different grit types.

[0006] Based on this, a process of multi-layer masking spraying and sanding is proposed. Summary of the Invention

[0007] The purpose of this invention is to provide a process for multi-layer masking and sanding by applying film in order to solve the above-mentioned problems.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] The process of multi-layer masking and sandblasting involves using a sandblasting device, including a worktable. The worktable is connected to two symmetrical blocks and a side plate. A pressure roller is connected to the second symmetrical block, and a crossbar is connected to the third symmetrical block. A sleeve is slidably connected to the crossbar, and wrapping wheels are connected to both ends of the sleeve. A balance bar is slidably connected to the side plate, and a clamping strip is connected to one end of the balance bar. A connecting rod is connected to the clamping strip, and a clamping spring is fitted onto the connecting rod. The clamping spring is fixedly connected between the clamping strips. A sliding rod is fixedly connected to the side plate, and a transmission mechanism is connected to the sliding rod. A spray gun is connected to the transmission mechanism.

[0010] Preferably, a support column is fixedly connected to the lower end of the workbench, and four support columns are provided, which are symmetrically connected to the lower end of the workbench.

[0011] Preferably, a conveyor belt is connected to the workbench, a rotary motor is connected to the conveyor belt, a motor frame is connected to the side plate, and the rotary motor is connected to the motor frame.

[0012] Preferably, a symmetrical block is connected to the workbench, and a push rod is connected to the symmetrical block.

[0013] Preferably, the transmission mechanism includes a transmission column, a slide frame slidably connected to the slide rod one, a sandblasting plate connected to the slide frame, the transmission column slidably connected to the sandblasting plate, a connecting block connected to the sandblasting plate, a slide rod two connected to the connecting block, a reciprocating block slidably connected to the slide rod two, a reciprocating spring and a retraction spring connected to one side of the reciprocating block, a sandblasting block connected to the reciprocating block, a spray gun connected to the sandblasting block, an inclined column connected to one end of the retraction spring, a limit rod connected to the inclined column, and an inclined block connected to the sandblasting plate.

[0014] Preferably, a slide bar is connected to the sandblasting plate, a sliding clamp is slidably connected to the slide bar, the transmission column is fixedly connected to the sliding clamp, and a handle is connected to the sliding clamp.

[0015] Preferably, an adjusting block is connected to the sandblasting plate, an adjusting rod and a bolt are connected to the adjusting block, and the inclined block is fixedly connected to one end of the adjusting rod.

[0016] The process of applying multi-layer masking and sandblasting film includes the following steps:

[0017] S1: Place the laptop casing to be sandblasted on the conveyor belt, and use pressure rollers to apply the protective film to both sides of the casing;

[0018] S2: Place the protective shell with the film applied between the clamping strips to clamp and fix the protective shell. The operator starts the spray gun and moves the sandblasting plate above the shell.

[0019] S3: Move the spray gun above the housing to perform sandblasting. After sandblasting, continue moving the sandblasting plate until the sandblasting of the upper surface of the housing is completed. Then, remove the protective film to complete the processing.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0021] 1. This application uses a pressure roller structure to firmly press and adhere the protective film to the surface of the outer shell, reducing the probability of sand particles entering the edge of the protective film. At the same time, it adopts a vertical reciprocating spray gun structure to avoid the spray gun tilting, which would increase the probability of sand particles entering the edge of the protective film and improve the accuracy of sandblasting operations.

[0022] 2. This application adopts a clamping bar structure to limit the outer shell. Combined with the linearly moving spray gun, the sandblasting path is regular and the processing accuracy is improved. The clamping bar can still move left and right while clamping the outer shell, so the processing position is adjustable. Attached Figure Description

[0023] Figure 1 A schematic diagram of the overall structure of the sandblasting equipment provided according to an embodiment of the present invention is shown;

[0024] Figure 2 A schematic diagram of the structure of the conveyor belt connection provided according to an embodiment of the present invention is shown;

[0025] Figure 3 A schematic diagram of the structure of the clamping strip connection provided according to an embodiment of the present invention is shown;

[0026] Figure 4 A schematic diagram of the connection structure on a sandblasting plate provided according to an embodiment of the present invention is shown;

[0027] Figure 5 A top view of the structure on the sandblasting plate provided according to an embodiment of the present invention is shown.

[0028] Legend:

[0029] 1. Workbench; 2. Support column; 3. Side plate; 4. Symmetrical block one; 5. Push rod; 6. Symmetrical block two; 7. Pressure roller; 8. Symmetrical block three; 9. Crossbar; 10. Sleeve; 11. Rotary motor; 12. Wrapping wheel; 13. Slide bar one; 14. Balance bar; 15. Clamping bar; 16. Connecting rod; 17. Clamping spring; 18. Motor frame; 19. Conveyor belt; 20. Slide carriage; 21. Sandblasting plate; 22. Slide bar; 23. Sliding clamp; 24. Handle; 25. Transmission column; 26. Inclined block; 27. Adjusting block; 28. Bolt; 29. ​​Slide bar two; 30. Reciprocating block; 31. Inclined column; 32. Limiting rod; 33. Connecting block; 34. Reciprocating spring; 35. Sandblasting block; 36. Spray gun; 37. Adjusting rod; 38. Contraction spring. Detailed Implementation

[0030] 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 embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figure 1-5 The present invention provides a technical solution:

[0032] The process of multi-layer masking and sandblasting involves using a sandblasting device, including a worktable 1. Symmetrical blocks 6 and 8, and a side plate 3 are connected to the worktable 1. Pressure rollers 7 are connected to symmetric blocks 6. As the outer shell moves with the conveyor belt 19, the pressure rollers 7 rotate, pressing the protective film between the structures onto the outer shell surface. A crossbar 9 is connected to symmetric blocks 8, and a sleeve 10 is slidably connected to the crossbar 9. Wrapping wheels 12 are connected to both ends of the sleeve 10. Changing the position of the sleeve 10 allows for film application to different locations on the outer shell. A balance bar 14 is slidably connected to the side plate 3, and a clamping strip 15 is connected to one end of the balance bar 14. A balance bar 14 is connected through the side plate 3, and two balance bars 14 are connected to the side plate 3. A connecting rod 16 is connected to the clamping bar 15. There are two clamping bars 15, and two balance bars 14 are fixedly connected to each of the two clamping bars 15. There are two connecting rods 16. One end of the two connecting rods 16 is fixedly connected to one of the clamping bars 15, and the other clamping bar 15 is slidably connected to the connecting rod 16. A clamping spring 17 is sleeved on the connecting rod 16. The clamping spring 17 is fixedly connected between the clamping bars 15 and sleeved on the connecting rod 16. A slide bar 13 is fixedly connected to the side plate 3. A transmission mechanism is connected to the slide bar 13, and a spray gun 36 is connected to the transmission mechanism.

[0033] Specifically, such as Figure 1 As shown, a support column 2 is fixedly connected to the lower end of the workbench 1. There are four support columns 2, which are symmetrically connected to the lower end of the workbench 1 to ensure the structural stability of the workbench 1.

[0034] Specifically, such as Figure 2 As shown, a conveyor belt 19 is connected to the workbench 1, a rotary motor 11 is connected to the conveyor belt 19, a motor frame 18 is connected to the side plate 3, and the rotary motor 11 is connected to the motor frame 18. The motor frame 18 ensures the secure connection of the rotary motor 11, and the rotary motor 11 has the function of driving the conveyor belt 19 to rotate.

[0035] Specifically, such as Figure 2 As shown, a symmetrical block 4 is connected to the workbench 1, and a push rod 5 is connected to the symmetrical block 4. The push rod 5 serves to guide and tighten the protective film. The protective film has a long strip structure and is wrapped around the wrapping wheel 12.

[0036] Specifically, such as Figure 4 and Figure 5 As shown, the transmission mechanism includes a transmission column 25, a slide frame 20 slidably connected to a slide rod 13, a sandblasting plate 21 connected to the slide frame 20, the sandblasting plate 21 can only reciprocate along the slide rod 13, the transmission column 25 is slidably connected to the sandblasting plate 21, a connecting block 33 is connected to the sandblasting plate 21, a slide rod 29 is connected to the connecting block 33, a reciprocating block 30 is slidably connected to the slide rod 29, and a reciprocating spring 34 and a retraction spring are connected to one side of the reciprocating block 30. A spring 38 and a reciprocating block 30 are connected to a sandblasting block 35. A spray gun 36 is connected to the sandblasting block 35. A groove is provided on the sandblasting plate 21, which is located directly below the slide rod 29. The sandblasting block 35 is slidably connected to the groove. One end of the retracting spring 38 is connected to an inclined column 31. An inclined surface is provided on the inclined column 31, which is parallel to the inclined surface on the inclined block 26. A limit rod 32 is connected to the inclined column 31, and the inclined block 26 is connected to the sandblasting plate 21.

[0037] Specifically, such as Figure 4 As shown, a slide bar 22 is connected to the sandblasting plate 21, and a sliding clamp 23 is slidably connected to the slide bar 22. The transmission column 25 is fixedly connected to the sliding clamp 23, and a handle 24 is connected to the sliding clamp 23. The operator only needs to push the handle 24 to move the spray gun 36. During this process, there is no need to contact the spray gun 36, which ensures that the spray gun 36 remains in a vertically downward position.

[0038] Specifically, such as Figure 4As shown, an adjusting block 27 is connected to the sandblasting plate 21, and an adjusting rod 37 and a bolt 28 are connected to the adjusting block 27. An inclined block 26 is fixedly connected to one end of the adjusting rod 37. By setting the adjusting rod 37, the inclined block 26 can be moved, thereby changing the position of the displacement endpoint of the spray gun 36 to meet the sandblasting requirements of shells of different lengths.

[0039] In summary, the multi-layer masking and sandblasting process provided in this embodiment involves placing the laptop shell on the conveyor belt 19 when sandblasting is required, starting the rotary motor 11, and using the rotary motor 11 to drive the conveyor belt 19 to rotate, pressing the protective film on the wrapping roller 12 onto the shell through the pressure roller 7. The sleeve 10 structure can be moved to adapt to the film application operation of shells in different positions, and the push rod 5 structure plays the role of tightening the protective film.

[0040] The outer shell is placed between the clamping bars 15, and the clamping spring 17 is contracted so that the clamping bars 15 can clamp the outer shell. During the clamping process, the balance bar 14 can still be moved to change the position of the outer shell.

[0041] The operator needs to install the spray gun 36 on the sandblasting block 35, ensuring that the spray gun 36 is perpendicular to the outer casing. The operator then starts the spray gun 36 and pushes the handle 24 to move it. The handle 24 causes the sliding clamp 23 to slide on the slide bar 22, and the transmission column 25 causes the inclined plate column 31 to slide. At this point, the inclined plate column 31 moves towards the inclined block 26. When the inclined plate column 31 contacts the inclined block 26, the inclined surface on the inclined plate 31 contacts the inclined surface on the inclined block 26. Continuing to move the inclined plate column 31 will compress the compression spring 38 structure. At this point, the inclined plate column 31 structure begins to separate from the transmission column 25, and finally, the inclined plate column 31 is no longer subjected to transmission. When the transmission column 25 contacts the drive, the reciprocating block 30 structure is acted upon by the reciprocating spring 34 and quickly returns to the initial position. During the slow movement of the spray gun 36 driven by the transmission column 25, a fine sandblasting is performed on the surface of the outer shell. Subsequently, when the spray gun 36 moves rapidly back to the initial position under the action of the reciprocating spring 34, the rapid movement of the spray gun 36 completes a rough sandblasting. Then, the position of the spray gun 36 can be changed by controlling the slide 20 to slide on the slide rod 13, and then sandblasting can be performed on different positions on the outer shell. Since the spray gun 36 is always perpendicular to the surface of the outer shell during the movement, the sandblasting accuracy and efficiency are greatly improved.

[0042] The above description of the embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multi-layer masking and sandblasting process, wherein the masking and sandblasting process uses a sandblasting device, including a worktable (1), characterized in that, The workbench (1) is connected to a symmetrical block two (6), a symmetrical block three (8) and a side plate (3). A pressure roller (7) is connected to the symmetrical block two (6). A crossbar (9) is connected to the symmetrical block three (8). A sleeve (10) is slidably connected to the crossbar (9). A wrapping wheel (12) is connected to both ends of the sleeve (10). A balance bar (14) is slidably connected to the side plate (3). A clamping bar (15) is connected to one end of the balance bar (14). A connecting rod (16) is connected to the clamping bar (15). A clamping spring (17) is sleeved on the connecting rod (16). The clamping spring (17) is fixedly connected between the clamping bars (15). A slide bar (13) is fixedly connected to the side plate (3). A transmission mechanism is connected to the slide bar (13). A spray gun (36) is connected to the transmission mechanism. The transmission mechanism includes a transmission column (25), a slide frame (20) is slidably connected to the slide rod (13), a sandblasting plate (21) is connected to the slide frame (20), the transmission column (25) is slidably connected to the sandblasting plate (21), a connecting block (33) is connected to the sandblasting plate (21), a slide rod (29) is connected to the connecting block (33), a reciprocating block (30) is slidably connected to the slide rod (29), a reciprocating spring (34) and a contraction spring (38) are connected to one side of the reciprocating block (30), a sandblasting block (35) is connected to the reciprocating block (30), a spray gun (36) is connected to the sandblasting block (35), a inclined column (31) is connected to one end of the contraction spring (38), a limit rod (32) is connected to the inclined column (31), and an inclined block (26) is connected to the sandblasting plate (21). A slide bar (22) is connected to the sandblasting plate (21), and a sliding clamp (23) is slidably connected to the slide bar (22). The transmission column (25) is fixedly connected to the sliding clamp (23), and a handle (24) is connected to the sliding clamp (23). An adjusting block (27) is connected to the sandblasting plate (21), and an adjusting rod (37) and a bolt (28) are connected to the adjusting block (27). The inclined block (26) is fixedly connected to one end of the adjusting rod (37).

2. The process of multi-layer masking and sanding according to claim 1, characterized in that, The lower end of the workbench (1) is fixedly connected to a support column (2), and four support columns (2) are provided, which are symmetrically connected to the lower end of the workbench (1).

3. The process of multi-layer masking and sandblasting according to claim 1, characterized in that, The workbench (1) is connected to a conveyor belt (19), the conveyor belt (19) is connected to a rotary motor (11), the side plate (3) is connected to a motor frame (18), and the rotary motor (11) is connected to the motor frame (18).

4. The process of multi-layer masking and sandblasting according to claim 1, characterized in that, The workbench (1) is connected to a symmetrical block (4), and the symmetrical block (4) is connected to a push rod (5).

5. The process of multi-layer masking and sandblasting according to claim 1, characterized in that, Includes the following steps: S1: Place the laptop shell to be sandblasted on the conveyor belt (19) and use the pressure rollers (7) to apply the protective film to both sides of the shell; S2: Place the protective shell with the film applied between the clamping strips (15) to clamp and fix the protective shell. The operator starts the spray gun (36) and moves the sandblasting plate (21) above the shell. S3: Move the spray gun (36) above the housing to perform sandblasting on the housing. After sandblasting is completed, continue to move the sandblasting plate (21) until the sandblasting operation on the upper surface of the housing is completed. Then, tear off the protective film to complete the processing.

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