An ultrafast laser-assisted silk screen removal process

Abstract

The present application relates to an ultrafast laser high-efficiency silk screen removal process, comprising the following steps: Step 1: placing a plastic plate on a placement seat, with the side of the plastic plate printed with the silk screen image facing vertically upward; Step 2: driving a transmission component to move the placement seat into the lifting range of a lifting frame, causing the lifting frame to lift the plastic plate; Step 3: driving a clamping and moving component to clamp the plastic plate; Step 4: driving an ultrafast laser emitter to emit an ultrafast laser toward the silk screen image on the plastic plate, while driving the clamping and moving component to move the plastic plate until the silk screen image on the plastic plate is completely removed; Step 5: driving the clamping and moving component to reset the plastic plate, causing the lifting frame to lower the plastic plate onto the placement seat, and driving the transmission component to transport the placement seat and the plastic plate out; Step 6: performing injection molding on the plastic plate at the location where the silk screen is to be removed. The present application has the effect of removing silk screen images from plastic plates.

Description

Technical Field

[0001] The present application relates to the technical field of equipment for removing silk screen images and texts, and in particular to an ultrafast laser high-efficiency silk screen removal process. Background Art

[0002] Silk screen printing is the abbreviation of screen printing. Silk screen printing belongs to the four major printing methods, which are known as flat printing, letterpress printing and gravure printing. The principle of silk screen printing is: synthetic fiber fabric or metal screen is stretched on the screen frame, and the screen printing plate is made by hand-carved paint film or photochemical plate making. When printing, the ink is transferred to the substrate through the holes of the plate through a certain pressure to form an image or text.

[0003] During the production process of plastic boards, it is necessary to screen-print patterns on the plastic boards. However, screen printing deviations or displacements are prone to occur during the screen printing process. These products that do not meet the requirements can generally only be treated as waste. Because there are screen-printed patterns on the plastic boards, it is difficult to directly recycle and reuse them, which is not conducive to environmental protection and increases production costs. When recycling old plastic boards that have been used for a long time, the screen printing marks on the old plastic boards are even more difficult to handle, which brings inconvenience to the reuse of the plastic boards after recycling. Summary of the Invention

[0004] In order to remove silk-screen images and texts on plastic plates, the present application provides an ultrafast laser efficient silk-screen removal process.

[0005] On the one hand, the present application provides an ultrafast laser high-efficiency silk screen removal process, which adopts the following technical solutions:

[0006] An ultrafast laser high-efficiency silk screen removal process comprises the following steps: step 1: placing a plastic plate on a placement seat with the side of the plastic plate printed with a silk screen image facing vertically upward; step 2: driving a transmission component to move the placement seat into the lifting range of a lifting frame, so that the lifting frame lifts the plastic plate; step 3: driving a clamping and moving component to clamp the plastic plate; step 4: driving an ultrafast laser emitter to emit an ultrafast laser toward the silk screen image on the plastic plate, and simultaneously driving the clamping and moving component to move the plastic plate until the silk screen image on the plastic plate is completely removed; step 5: driving the clamping and moving component to reset the plastic plate, so that the lifting frame lowers the plastic plate onto the placement seat, and driving the transmission component to transport the placement seat and the plastic plate out; and step 6: performing injection molding on the plastic plate at the location where the silk screen is to be removed.

[0007] By adopting the above technical solution, when it is necessary to remove the silk-screened pattern on the plastic plate, the plastic plate is moved to the emission position of the ultrafast laser emitter by conveying and lifting, and the ultrafast laser emitter is driven to emit ultrafast laser at the silk-screened pattern on the plastic plate, so that the ultrafast laser eliminates the silk-screened pattern. At the same time as the emission, the clamping and moving assembly is driven to move the plastic plate, so that the ultrafast laser emitter removes the silk-screened pattern. After the silk-screened pattern is removed, the plastic plate is injection molded to repair the damaged part of the plastic plate so that the plastic plate can be put into use again as soon as possible.

[0008] On the other hand, the present application provides an ultrafast laser high-efficiency silk screen removal device, which adopts the following technical solutions:

[0009] An ultrafast laser high-efficiency silk screen removal device includes a frame, an ultrafast laser emitter is provided on the top of the frame, a transmission component is provided on the frame, a placement seat is provided on the transmission component, a lifting frame for lifting or lowering a plastic plate is provided on the frame, and a clamping and moving component is provided on the top of the frame.

[0010] By adopting the above technical solution, when it is necessary to remove the silk-screened images and texts on the plastic plate, the plastic plate can be placed on the placement seat, the transmission component can be driven to move the plastic plate to the lifting frame, and the lifting frame can be used to move the plastic plate to a suitable position. The clamping and moving component can be driven to clamp the plastic plate, and the ultrafast laser emitter can be driven to emit ultrafast laser at the silk-screened images and texts on the plastic plate, thereby eliminating the silk-screened images and texts. At the same time, the clamping and moving component can be driven to move the plastic plate, so that the silk-screened images and texts on the plastic plate can be gradually removed.

[0011] Optionally, a scanner is provided on the frame, and the scanner is located above the transmission component. A display is provided on the frame, and the display is electrically connected to the scanner.

[0012] By adopting the above technical solution, before scanning the silk-screened image, the scanner can be ordered to scan the silk-screened image on the plastic plate. After the scanning is completed, the scanner transmits the scanned image to the display, and the display performs image recognition on the image. The elimination path of the silk-screened image is obtained based on the scanned image, and an electrical signal is transmitted to the clamping and moving component, so that the clamping and moving component moves the plastic plate according to the elimination path, so that the silk-screened image is eliminated as completely as possible.

[0013] Optionally, a clamping drive member is provided on the frame, a bidirectional screw is provided at the output end of the clamping drive member, a sensing plate is slidably connected to the frame, the bidirectional screw is threadedly connected to the sensing plate, a contact switch is provided on the side wall of the sensing plate, the contact switch is electrically connected to the scanner, and a limit plate is provided on the frame for hindering the movement of the sensing plate, the limit plate is close to the thread dividing point of the bidirectional screw, and the thickness of the limit plate is greater than the total thickness of the two contact switches.

[0014] By adopting the above technical solution, the clamping drive member can drive the sensing plate to move toward the plastic plate, so that the contact switch contacts the side wall of the plastic plate. After the contact, the scanner receives the signal and scans the plastic plate. When no plastic plate is placed on the placement seat, the contact switch cannot contact other objects, so the scanner cannot receive the signal and does not scan. The display cannot receive the image, and the placement seat can be skipped at this time to improve efficiency.

[0015] Optionally, the clamping and moving assembly includes a moving drive member arranged on the top of the frame, a first moving seat being provided at the output end of the moving drive member, the first moving seat being slidably connected to the frame, a second moving drive member being provided on the first moving seat, a second moving seat being slidably connected to the first moving seat, a moving direction of the second moving seat being perpendicular to the moving direction of the first moving seat, a clamping drive member being provided on the second moving seat, and a clamping plate for clamping the plastic plate being provided at the output end of the clamping drive member.

[0016] By adopting the above technical solution, after the plastic plate is lifted, the clamping drive member is driven to make the clamping plate clamp the plastic plate, and the first moving drive member and the second moving drive member are driven respectively to move the plastic plate, so that there is no need to move the ultrafast laser emitter to remove the silk-screen image and text, and the ultrafast laser emitter remains stable.

[0017] Optionally, a transverse driving member is provided on the frame, a longitudinal driving member is provided at the output end of the transverse driving member, an injection molding member is provided at the output end of the longitudinal driving member, a plastic filling cylinder is connected to the injection molding member, and the injection molding member is located above the conveying assembly.

[0018] By adopting the above technical solution, after the silk-screened pattern is removed, the plastic plate is moved to the bottom of the injection molded part, and the transverse drive member and the longitudinal drive member are driven to move the injection molded part to the damaged position of the plastic plate for injection molding, thereby repairing the plastic plate and allowing the plastic plate to be put back into use as soon as possible after the silk-screened pattern is removed.

[0019] Optionally, a scraping drive member is provided on the frame, and a main scraper for scraping the top surface of the plastic plate is provided at the output end of the scraping drive member.

[0020] By adopting the above technical solution, after the plastic plate is injection molded, the scraping drive member can be driven to cause the main scraper to sweep the top surface of the plastic plate to scrape away the injection molding material on the top surface of the plastic plate.

[0021] Optionally, a downward-pressing driving member is provided at the output end of the scraping driving member, and the main scraper is located at the output end of the downward-pressing driving member.

[0022] By adopting the above technical solution, when it is necessary to scrape the plastic plate, the downward driving member is driven to make the bottom wall of the main scraper abut against the top surface of the plastic plate, which is convenient for scraping the top surface of the plastic plate. After the scraping is completed, the main scraper is driven to rise to facilitate the conveying of the plastic plate.

[0023] Optionally, a flat scraper drive is provided on the main scraper, and an auxiliary scraper is provided at the output end of the flat scraper drive. The auxiliary scraper is slidingly matched with the main scraper, the auxiliary scraper is in contact with the side wall of the main scraper, and the auxiliary scraper is in contact with the bottom wall of the main scraper.

[0024] By adopting the above technical solution, after the main scraper completes scraping, the flat scraper driving member can be driven to make the auxiliary scraper scrape the main scraper to scrape away the injection molding material stuck on the main scraper.

[0025] Optionally, the bottom of the auxiliary scraper is rotatably connected to an anti-drip plate, the bottom of the auxiliary scraper is slidably connected to a sliding rod, the top of the sliding rod abuts against the bottom wall of the main scraper, and the bottom end of the sliding rod abuts against the side of the anti-drip plate close to the auxiliary scraper.

[0026] By adopting the above technical solution, when the auxiliary scraper sweeps the main scraper, the anti-drip plate can receive the dripping injection molding material, thereby reducing the situation where the injection molding material drips onto the plastic plate and the chain.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. When it is necessary to remove the silk-screened pattern on the plastic plate, the plastic plate is moved to the launch position of the ultrafast laser emitter by conveying and lifting, and the ultrafast laser emitter is driven to emit ultrafast laser at the silk-screened pattern on the plastic plate. The ultrafast laser removes the silk-screened pattern. At the same time, the clamping and moving assembly is driven to move the plastic plate, so that the ultrafast laser emitter removes the silk-screened pattern. After the silk-screened pattern is removed, the plastic plate is injection molded to repair the damaged part of the plastic plate so that the plastic plate can be put back into use as soon as possible.

[0029] 2. When it is necessary to remove the silk-screened images on the plastic plate, the plastic plate can be placed on the placement seat, the transmission component can be driven to move the plastic plate to the lifting frame, the lifting frame can be made to move the plastic plate to a suitable position, the clamping and moving component can be driven to clamp the plastic plate, and the ultrafast laser emitter can be driven to emit ultrafast laser to the silk-screened images on the plastic plate, thereby removing the silk-screened images. At the same time, the clamping and moving component can be driven to move the plastic plate, so that the silk-screened images on the plastic plate can be gradually removed.

[0030] 3. After the silk-screen pattern is removed, the plastic plate is moved to the bottom of the injection molded part, and the transverse and longitudinal drive members are driven to move the injection molded part to the damaged position of the plastic plate for injection molding, thereby repairing the plastic plate so that the plastic plate can be put back into use as soon as possible after the silk-screen pattern is removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure in the embodiment of the present application.

[0032] Figure 2 It is an exploded view of the placement seat and the moving seat in the embodiment of the present application.

[0033] Figure 3 It is a schematic diagram of the position of the injection molded parts in the embodiment of the present application.

[0034] Figure 4 It is a partial cross-sectional view of the auxiliary scraper in the embodiment of the present application.

[0035] Description of reference numerals:

[0036] 1. Frame; 11. Display; 12. Upper cover; 13. Ultrafast laser emitter; 14. Limit plate; 21. Chain; 22. Sprocket; 23. Transmission drive; 24. Placement seat; 241. Baffle; 242. Plug-in block; 25. Moving seat; 251. Plug-in slot; 31. Scanner; 32. Clamping drive; 321. Bidirectional screw; 33. Sensor plate; 331. Contact switch; 41. Lifting frame; 42. Lifting drive; 51. First moving drive; 52. First moving seat; 53. First screw; 54. 4. Secondary shifting drive member; 55. Secondary shifting seat; 551. Clamping drive member; 552. Clamping plate; 56. Secondary screw rod; 61. Injection molded part; 611. One-way valve; 62. Transverse shifting drive member; 621. Transverse shifting seat; 63. Longitudinal shifting drive member; 631. Longitudinal shifting seat; 64. Plastic filling cylinder; 71. Scraping drive member; 72. Scraping seat; 73. Pressing drive member; 74. Main scraper; 81. Flat scraping drive member; 811. Flat scraping screw rod; 82. Auxiliary scraper; 821. Sliding rod; 822. Extension plate; 83. Anti-drip plate. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-4 This application is described in further detail.

[0038] The embodiments of the present application disclose an ultrafast laser device for efficiently removing silk screen printing.

[0039] Reference Figure 1An ultrafast laser high-efficiency silk screen removal device includes a frame 1, an upper cover 12 is fixed on the top of the frame 1, an ultrafast laser emitter 13 is provided on the side of the upper cover 12 close to the frame 1, the output end of the ultrafast laser emitter 13 is vertically downward, a transmission component is provided on the frame 1, the transmission component includes a chain 21, a sprocket 22 and a transmission drive member 23 fixed on the frame 1, the sprocket 22 is rotatably connected to the side wall of the frame 1, the sprocket 22 is engaged with the chain 21, the transmission drive member 23 is a servo motor, the output end of the transmission drive member 23 is connected to the sprocket 22, the chain 21 is located below the ultrafast laser emitter 13, a placement seat 24 is provided on the chain 21, and a baffle 241 is provided on the top of the placement seat 24.

[0040] When it is necessary to remove the silk-screened pattern on the plastic plate, the plastic plate on which the silk-screened pattern needs to be removed can be placed on the placement seat 24, and the baffle 241 can abut against the side wall of the plastic plate, thereby limiting the plastic plate and preventing the plastic plate from deflecting. The transmission drive 23 is driven to cause the chain 21 to drive the placement seat 24 and the plastic plate on the placement seat 24 to move, thereby moving the plastic plate to directly below the output end of the ultrafast laser emitter 13, and driving the ultrafast laser emitter 13 to cause the ultrafast laser emitter 13 to emit ultrafast laser at the silk-screened pattern on the plastic plate, thereby removing the silk-screened pattern on the plastic plate.

[0041] Reference Figure 1 and Figure 2 A movable seat 25 is provided on the chain 21, and the movable seat 25 is located between the chain 21 and the placement seat 24. A plug-in block 242 is provided on the side of the placement seat 24 close to the movable seat 25. The plug-in block 242 is plugged into the movable seat 25. The side wall of the movable seat 25 is provided with a plug-in groove 251, and the plug-in block 242 can be inserted into the plug-in groove 251, so that the placement seat 24 is easy to disassemble and replace. The extension direction of the plug-in groove 251 is perpendicular to the moving direction of the chain 21. Therefore, the placement seat 24 is not easily affected by inertia and separated from the movable seat 25 during the movement.

[0042] Reference Figure 1 and Figure 2 The side wall of the frame 1 is provided with a lifting drive member 42, which is a cylinder. The output end of the lifting drive member 42 is installed with a lifting frame 41, which is located directly below the output end of the ultrafast laser emitter 13. When the plastic plate moves to the position directly below the output end of the ultrafast laser emitter 13, the plastic plate is also located on the moving path of the lifting frame 41. The lifting drive member 42 can be driven to make the lifting frame 41 rise and lift the plastic plate, so that the plastic plate is close to the output end of the ultrafast laser emitter 13, which is convenient for the ultrafast laser emitter 13 to remove the silk-screen images on the plastic plate.

[0043] A clamping and moving assembly is provided on the top of the frame 1, and the clamping and moving assembly includes a moving drive member 51, a first moving seat 52, a second moving drive member 54, a second moving seat 55 and a clamping drive member 551. The output end of the moving drive member 51 is connected to the first moving seat 52, the second moving drive member 54 and the second moving seat 55 are arranged on the top of the first moving seat 52, the clamping drive member 551 is fixed on the top surface of the second moving seat 55, the clamping drive member 551 is a cylinder, and the clamping drive member 551 is provided with four pieces. The clamping drive member 551 is horizontally arranged, and a clamping plate 552 is installed at the output end of the clamping drive member 551. The clamping plate 552 is L-shaped, and the clamping drive member 551 can drive the clamping plate 552 to perform linear displacement.

[0044] After the lifting drive 42 drives the lifting frame 41 to lift the plastic plate, it can drive the clamping drive 551 to make the clamping plate 552 press against the side wall of the plastic plate to clamp the plastic plate, thereby reducing the deviation of the plastic plate during the removal of the silk-screen pattern and improving the removal quality.

[0045] The first moving drive member 51 and the second moving drive member 54 are both servo motors. The output end of the first moving drive member 51 is connected to the first screw rod 53, which extends in the horizontal direction. The end of the first screw rod 53 away from the first moving drive member 51 is rotatably connected to the top of the frame 1, the first screw rod 53 is threadedly connected to the first moving seat 52, the first screw rod 53 passes through the first moving seat 52, and the first moving seat 52 is slidably connected to the top surface of the frame 1. The second moving drive member 54 is installed on the top surface of the first moving seat 52. The output end of the second moving drive member 54 is connected to the second screw rod 56, the second screw rod 56 extends in the horizontal direction, the extension direction of the second screw rod 56 is perpendicular to the extension direction of the first screw rod 53, the end of the second screw rod 56 away from the second moving drive member 54 is rotatably connected to the first moving seat 52, the second moving seat 55 is slidably connected to the top surface of the first moving seat 52, the second screw rod 56 is threadedly connected to the second moving seat 55, and the second screw rod 56 passes through the second moving seat 55.

[0046] After the clamping drive 551 drives the clamping plate 552 to clamp the plastic, the lifting drive 42 is driven to lower the lifting frame 41, so that the lifting frame 41 is away from the plastic plate, and the ultrafast laser emitter 13 is driven to emit ultrafast laser to the plastic plate. At this time, the first moving drive 51 and the second moving drive 54 can be driven to move the first moving seat 52 and the second moving seat 55 respectively, so that the plastic plate can be moved, so that the ultrafast laser emitted by the ultrafast laser emitter 13 can gradually remove the silk-screened pattern on the plastic plate without moving the ultrafast laser generator, thereby maintaining the stability of the ultrafast laser emitter 13. After the silk-screened pattern is completed, the first moving drive 51 and the second moving drive 54 are driven to reset the plastic plate, and the lifting frame 41 is driven to rise to support the plastic plate. The clamping drive 551 is driven to move away from the plastic plate, and the lifting frame 41 is driven to lower the plastic plate onto the placement seat 24, and then the transportation can continue.

[0047] A scanner 31 is installed on the side wall of the frame 1 and is located above the chain 21 . A display 11 is provided on the top of the frame 1 and is electrically connected to the scanner 31 . An image processor is provided on the display 11 .

[0048] When the chain 21 drives the plastic plate to pass directly under the scanner 31, the scanner 31 can scan the top surface of the plastic plate. After the scanning is completed, the scanner 31 transmits the scanned image to the display 11, and the display 11 obtains the scanned image of the plastic plate. The image processor recognizes the silk-screened image on the plastic plate. After the recognition is completed, the image processor derives the moving path of the plastic plate after lifting according to the shape of the silk-screened image, and transmits an electrical signal to the first moving drive member 51 and the second moving drive member 54. After the clamping drive member 551 clamps the plastic plate, the first moving drive member 51 and the second moving drive member 54 are driven according to the electrical signal, so that the plastic plate moves along the moving path when the silk-screen is removed. After the silk-screen is removed, the plastic plate is driven to reset by the first moving drive member 51 and the second moving drive member 54. At this time, the lifting drive member 42 can be driven to lower the plastic plate into the placement seat 24.

[0049] The side wall of the frame 1 is equipped with a clamping drive member 32, which is a servo motor. The output end of the clamping drive member 32 is connected to a bidirectional lead screw 321, which is located above the chain 21. The bidirectional lead screw 321 is close to the scanner 31, and the extension direction of the bidirectional lead screw 321 is perpendicular to the moving direction of the sprocket 22. The thread dividing point of the bidirectional lead screw 321 is located at the center of the bidirectional lead screw 321. The side wall of the frame 1 is slidingly connected with an induction plate 33. The induction plate 33 is provided with two pieces. The induction plates 33 are symmetrically arranged on the bidirectional lead screw 321. The induction plate 33 is symmetrical with the thread dividing point of the bidirectional lead screw 321. The bidirectional lead screw 321 is threadedly connected to the induction plate 33. The bidirectional lead screw 321 passes through the induction plate 33. The side walls of the induction plates 33 close to each other are provided with contact switches 331, and the contact switches 331 are electrically connected to the scanner 31.

[0050] When the chain 21 drives the plastic plate to move directly below the scanner 31, the drive of the transmission drive member 23 can be suspended to stop the plastic plate directly below the scanner 31, and the clamping drive member 32 can be driven to make the sensor plates 33 approach each other, so that the contact switch 331 on the sensor plate 33 contacts the side wall of the plastic plate. After contact, the scanner 31 receives the electrical signal, scans the top surface of the plastic plate, and transmits the scanned image to the display 11. The spacing between the movable seats 25 on the chain 21 can be set so that when one of the placement seats 24 is directly below the ultrafast laser emitter 13, the other adjacent placement seat 24 is exactly below the scanner 31, thereby improving work efficiency.

[0051] A limit plate 14 is provided on the frame 1. The limit plate 14 is close to the thread dividing point of the bidirectional lead screw 321. The thickness of the limit plate 14 is greater than the total thickness of the two contact switches 331. When no plastic plate is placed on the placement seat 24 directly below the scanner 31, the two sensor plates 33 approach each other until the side walls of the sensor plates 33 approach each other abut against the limit plate 14. During this process, the contact switch 331 does not come into contact with other objects, so the scanner 31 does not scan and the display 11 cannot be scanned. Therefore, when the placement seat 24 is moved to directly below the ultrafast laser emitter 13, the steps of lifting, clamping, and emitting ultrafast lasers can be omitted, thereby improving efficiency and saving energy.

[0052] Reference Figure 1 and Figure 3 The side wall of the frame 1 is provided with a transverse driving member 62, which is a cylinder. The output end of the transverse driving member 62 is provided with a transverse seat 621, which is slidably connected to the frame 1. The transverse driving member 62 can drive the transverse seat 621 to move horizontally. The side wall of the transverse seat 621 is provided with a longitudinal driving member 63, which is a cylinder. The output end of the longitudinal driving member 63 is provided with a longitudinal seat 631. 631 is slidably connected to the transverse seat 621, and the longitudinal driving member 63 can drive the longitudinal seat 631 to make horizontal displacement. The displacement direction of the longitudinal seat 631 is perpendicular to the displacement direction of the transverse seat 621. The longitudinal seat 631 is connected to the injection molding part 61, and the injection molding part 61 is an injection molding gun. The input end of the injection molding part 61 is connected to the plastic filling cylinder 64, and the output end of the injection molding part 61 is connected to the one-way valve 611. The injection molding part 61 is located above the chain 21.

[0053] After the silk-screened pattern is removed from the plastic plate, the lifting drive 42 lowers the plastic plate onto the placement seat 24 for further transportation. When the plastic plate is transported to the bottom of the injection molded part 61, the drive of the conveying drive 23 can be paused, and the transverse drive 62 and the longitudinal drive 63 can be driven respectively to move the injection molded part 61 to the position directly above the position where the silk-screened pattern is removed from the plastic plate. The one-way valve 611 is opened to allow the injection molded part 61 to perform injection molding on the position where the silk-screened pattern is removed from the plastic plate, thereby repairing the damaged part of the plastic plate when the silk-screened pattern is removed, so that the plastic plate after the silk-screened pattern is removed can be reused.

[0054] An opening is provided on the side of the plastic filling cylinder 64 away from the injection molded part 61, and the plastic filling cylinder 64 can be replenished with plastic filling material through the opening. A sealing cover is provided at the opening of the plastic filling cylinder 64 to reduce the leakage of the plastic filling material.

[0055] Reference Figure 1The side wall of the frame 1 is provided with a scraping drive member 71, which is a cylinder. A scraping seat 72 is installed at the output end of the scraping drive member 71. The side wall of the scraping seat 72 is provided with a downward pressing drive member 73, which is a cylinder. A main scraper 74 is provided at the output end of the downward pressing drive member 73, and the main scraper 74 extends in the horizontal direction.

[0056] After the injection molding of the plastic plate is completed, the conveying drive member 23 is continued to be driven to make the plastic plate reach directly below the main scraper 74, the pressing drive member 73 is driven to make the bottom wall of the main scraper 74 rest against the top surface of the plastic plate, and the scraping drive member 71 is driven to make the main scraper 74 and the pressing drive member 73 slide, so that the main scraper 74 sweeps the top surface of the plastic plate to scrape away the excess injection molding material.

[0057] Reference Figure 1 and Figure 4 The side wall of the main scraper 74 is provided with a flat scraper drive 81, which is a servo motor. The output end of the flat scraper drive 81 is installed with a flat scraper screw 811. The side wall of the main scraper 74 is slidingly connected with an auxiliary scraper 82. The auxiliary scraper 82 is threadedly connected to the flat scraper screw 811. The auxiliary scraper 82 fits against the side wall of the main scraper 74, and the auxiliary scraper 82 fits against the bottom wall of the main scraper 74.

[0058] When the main scraper 74 is scraping the plastic plate, it is easy to get stained with the injection molding material. After the injection molding material gets on the main scraper 74, it is easy to drip onto the chain 21. Therefore, after the main scraper 74 completes scraping the plastic plate, it can drive the flat scraping drive 81 to make the auxiliary scraper 82 slide, thereby scraping the injection molding material on the main scraper 74 and reducing the injection molding material dripping onto the chain 21.

[0059] Reference Figure 1 and Figure 4 The auxiliary scraper 82 includes a vertical plate and a horizontal plate. The horizontal plate is located at the bottom of the vertical plate. The side wall of the vertical plate fits with the side wall of the main scraper 74. The top wall of the horizontal plate fits with the bottom wall of the main scraper 74. The bottom of the horizontal plate is rotatably connected to the anti-drip plate 83. The anti-drip plate 83 is an arc-shaped plate. The inner arc side of the anti-drip plate 83 is close to the auxiliary scraper 82. The inner arc side of the anti-drip plate 83 faces upward. The top of the horizontal plate is slidably connected to the sliding rod 821. The sliding rod 821 It is plugged into the top surface of the horizontal plate, the top end of the sliding rod 821 abuts against the bottom wall of the main scraper 74, the top end of the sliding rod 821 can pass through the top surface of the horizontal plate, the bottom end of the sliding rod 821 passes through the bottom surface of the horizontal plate, and the bottom end of the sliding rod 821 abuts against the inner arc side of the anti-drip plate 83. The side wall of the sliding rod 821 is provided with an extension plate 822, which slides inside the horizontal plate and can prevent the sliding rod 821 from sliding out of the horizontal plate.

[0060] When the top end of the sliding rod 821 abuts against the bottom wall of the main scraper 74, the bottom end of the sliding rod 821 abuts against the inner arc side of the anti-drip plate 83, so that the inner arc side of the anti-drip plate 83 faces upward, so that the anti-drip plate 83 can receive the injection molding material dripping downward. When the cross plate moves to the end in the extension direction of the main scraper 74, the top end of the sliding rod 821 does not abut against the bottom wall of the main scraper 74, and the anti-drip plate 83 rotates downward under the action of gravity. The inner arc side of the anti-drip plate 83 no longer faces upward, causing the received injection molding material to drip downward. A collection container can be placed under the anti-drip plate 83 to collect the injection molding material. At the same time, the chain 21 can be less likely to be stained by the injection molding material.

[0061] The top of the sliding rod 821 is provided with a curved surface, which allows the sliding rod 821 to be pressed into the horizontal plate by the main scraper 74 when the auxiliary scraper 82 slides, and to abut against the inner arc side of the anti-drip plate 83 again, so that the inner arc side of the anti-drip plate 83 is facing upward again.

[0062] The embodiments of the present application also disclose an ultrafast laser efficient silk screen removal process.

[0063] An ultrafast laser high-efficiency silk screen removal process, comprising:

[0064] Step 1: Place the plastic plate on the placement seat 24 so that the side of the plastic plate with the silk-screen image is facing vertically upwards;

[0065] Step 2: Drive the transmission assembly to move the placement seat 24 into the lifting range of the lifting frame 41, so that the lifting frame 41 lifts the plastic plate;

[0066] Step 3: driving the clamping and moving assembly to clamp the plastic plate;

[0067] Step 4: driving the ultrafast laser emitter 13 to emit ultrafast laser light toward the silk-screened image on the plastic plate, and simultaneously driving the clamping and moving assembly to move the plastic plate until the silk-screened image on the plastic plate is completely removed;

[0068] Step 5: Drive the clamping and moving assembly to reset the plastic plate, so that the lifting frame 41 lowers the plastic plate onto the placement seat 24, and drives the conveying assembly to transport the placement seat 24 and the plastic plate out;

[0069] Step 6: Injection molding is performed on the plastic plate where the silk screen was removed.

[0070] Here, step 6 can be completed by the injection molded part 61 in this embodiment.

[0071] The implementation principle of the embodiment of the present application is as follows: when it is necessary to remove the silk-screened image on the plastic plate, the plastic plate can be placed on the placement seat 24, the transmission component is driven to transmit the plastic plate, and the ultrafast laser emitter 13 is driven to emit ultrafast laser to remove the silk-screened image on the plastic plate; before removing the silk-screen, the plastic plate is first scanned to improve the accuracy of removing the silk-screen; when removing the silk-screen, the clamping drive 551 can be driven to clamp the plastic plate, and the first moving drive 51 and the second moving drive 54 can be driven to move the plastic plate, so that there is no need to move the ultrafast laser emitter 13, so that the ultrafast laser emitter 13 maintains stability and is not prone to shaking; after removing the silk-screen, the plastic plate is remolded by the injection molding part 61 to complete the repair of the plastic plate, so that the plastic plate can be quickly put back into use.

[0072] The above are all preferred embodiments of the present application. These embodiments are only explanations of the present application and do not limit the scope of protection of the present application in turn. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be covered within the scope of protection of the present application.

Claims

1. An ultrafast laser high-efficiency silk screen removal process, characterized in that: The invention is applicable to ultrafast laser high-efficiency silk screen removal equipment, wherein the ultrafast laser high-efficiency silk screen removal equipment comprises a frame (1), an ultrafast laser emitter (13) is provided on the top of the frame (1), a transmission component is provided on the frame (1), a placement seat (24) is provided on the transmission component, a lifting frame (41) for lifting or lowering a plastic plate is provided on the frame (1), and a clamping and moving component is provided on the top of the frame (1); The frame (1) is provided with a scanner (31), the scanner (31) is located above the transmission component, the frame (1) is provided with a display (11), the display (11) is electrically connected to the scanner (31); The frame (1) is provided with a clamping contact driving member (32), the output end of the clamping contact driving member (32) is provided with a bidirectional screw rod (321), the frame (1) is slidably connected with a sensing plate (33), the bidirectional screw rod (321) is threadedly connected to the sensing plate (33), a side wall of the sensing plate (33) is provided with a contact switch (331), the contact switch (331) is electrically connected to the scanner (31), and the frame (1) is provided with a limit plate (14) for preventing the sensing plate (33) from moving, the limit plate (14) and the bidirectional screw rod (321) are close to the thread dividing point, and the thickness of the limit plate (14) is greater than the total thickness of the two contact switches (331); The ultrafast laser efficient silk screen removal process comprises the following steps: Step 1: Place the plastic plate on the placement seat (24) so ​​that the side of the plastic plate with the silk-screen image is facing vertically upward; Step 2: driving the transmission assembly to move the placement seat (24) into the lifting range of the lifting frame (41), so that the lifting frame (41) lifts the plastic plate; Step 3: driving the clamping and moving assembly to clamp the plastic plate; Step 4: driving the ultrafast laser emitter (13) to emit ultrafast laser light toward the silk-screened image on the plastic plate, and simultaneously driving the clamping and moving assembly to move the plastic plate until the silk-screened image on the plastic plate is completely removed; Step 5: driving the clamping and moving assembly to reset the plastic plate, causing the lifting frame (41) to lower the plastic plate onto the placement seat (24), and driving the conveying assembly to transport the placement seat (24) and the plastic plate out; Step 6: Injection molding is performed on the plastic plate where the silk screen was removed.

2. The ultrafast laser high-efficiency silk screen removal process according to claim 1, characterized in that: The clamping and moving assembly comprises a moving drive member (51) arranged on the top of the frame (1); a first moving seat (52) is provided at the output end of the moving drive member (51); the first moving seat (52) is slidably connected to the frame (1); a second moving drive member (54) is provided on the first moving seat (52); a second moving seat (55) is provided at the output end of the second moving drive member (54); the second moving seat (55) is slidably connected to the first moving seat (52); the moving direction of the second moving seat (55) is perpendicular to the moving direction of the first moving seat (52); a clamping drive member (551) is provided on the second moving seat (55); and a clamping plate (552) for clamping the plastic plate is provided at the output end of the clamping drive member (551).

3. The ultrafast laser high-efficiency silk screen removal process according to claim 1, characterized in that: The frame (1) is provided with a transverse driving member (62), the output end of the transverse driving member (62) is provided with a longitudinal driving member (63), the output end of the longitudinal driving member (63) is provided with an injection molding member (61), the injection molding member (61) is connected to a plastic filling cylinder (64), and the injection molding member (61) is located above the transmission component.

4. The ultrafast laser high-efficiency silk screen removal process according to claim 3, characterized in that: A scraping drive member (71) is provided on the frame (1), and a main scraper (74) for scraping the top surface of the plastic plate is provided at the output end of the scraping drive member (71).

5. The ultrafast laser high-efficiency silk screen removal process according to claim 4, characterized in that: The output end of the scraping drive member (71) is provided with a downward pressing drive member (73), and the main scraper (74) is located at the output end of the downward pressing drive member (73).

6. The ultrafast laser high-efficiency silk screen removal process according to claim 4, characterized in that: The main scraper (74) is provided with a flat scraper drive member (81), and the output end of the flat scraper drive member (81) is provided with an auxiliary scraper (82). The auxiliary scraper (82) is slidably matched with the main scraper (74), and the auxiliary scraper (82) is in contact with the side wall of the main scraper (74), and the auxiliary scraper (82) is in contact with the bottom wall of the main scraper (74).

7. The ultrafast laser high-efficiency silk screen removal process according to claim 6, characterized in that: The bottom of the auxiliary scraper (82) is rotatably connected to an anti-drip plate (83), and the bottom of the auxiliary scraper (82) is slidably connected to a sliding rod (821). The top end of the sliding rod (821) abuts against the bottom wall of the main scraper (74), and the bottom end of the sliding rod (821) abuts against the side of the anti-drip plate (83) close to the auxiliary scraper (82).

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