A laser engraving device and method for tire mold side plates

Abstract

This invention relates to the field of laser engraving technology, and proposes a laser engraving device and method for tire mold side panels. The laser engraving device for tire mold side panels includes a processing base, with a laser engraving equipment body mounted on top of the processing base. It also includes an arc-shaped clamping frame, an arc-shaped sliding groove, and a closed light-shielding assembly. Two arc-shaped clamping frames are provided. A position adjustment mechanism is provided on one side of the arc-shaped clamping frame and the processing base. An arc-shaped sliding groove is fixedly connected to the top of the arc-shaped clamping frame. Multiple adjusting sliding frames are slidably connected to the arc-shaped sliding groove, and multiple closed light-shielding assemblies are slidably mounted on the adjusting sliding frames. This technical solution solves the problem in the prior art where it is difficult to ensure that the laser engraving area remains sealed from the external environment when engraving large tire side panels.

Description

Technical Field

[0001] This invention relates to the field of laser engraving technology, specifically to a laser engraving device and method for a tire mold side plate. Background Technology

[0002] Tire molds are custom-made molds used in the existing technology for vulcanizing various tires. By using vulcanizing equipment in conjunction with the tire mold, the tire forming process is completed. Tire molds come in different types, including a movable mold composed of a tread ring, a mold sleeve, and upper and lower side plates. Assembling the tread ring, mold sleeve, and upper and lower side plates together completes the vulcanization forming process of the tire. The upper and lower side plates of the tire mold correspond to the shape of the vulcanized tire. Therefore, before use, the side plates of the tire mold generally need to be machined using a machining center to complete the shape machining. However, the cutting tools used in machining centers are very fine and easily break. Furthermore, the texture lines on the tire mold side plates can only be machined to a size of 0.3 mm; smaller sizes make it difficult to guarantee the machining effect. Therefore, in the existing technology, laser engraving equipment is used to engrave the precision areas of the side plates.

[0003] However, the output area of ​​the laser emitting device in existing laser engraving equipment is relatively small, while the tire sidewall is relatively large. Therefore, the tire sidewall often needs to be moved continuously at the bottom of the laser emitting device to adjust the engraving position. This results in the processing area of ​​the laser engraving equipment being in contact with the external environment during use. This usage method not only makes the laser beam easily affected by the external environment after it is emitted, but the laser beam can also easily damage other things in the external environment, which is not conducive to the normal and safe use of the laser engraving equipment. Summary of the Invention

[0004] This invention proposes a laser engraving device and method for tire mold side panels, which solves the problem in the prior art that it is difficult to ensure that the laser engraving area is sealed from the external environment when engraving large tire side panels.

[0005] The technical solution of the present invention is as follows: A laser engraving device for the side plate of a tire mold, comprising a processing base, wherein a laser engraving equipment body is disposed on the top of the processing base, and further comprising:

[0006] An arc-shaped clamping frame is provided, wherein the number of arc-shaped clamping frames is set to two, and a position adjustment mechanism is provided on one side of the arc-shaped clamping frame and the processing base;

[0007] An arc-shaped sliding groove is fixedly connected to the top of the arc-shaped clamping frame, and multiple adjusting sliding frames are slidably connected to the arc-shaped sliding groove.

[0008] A closed light-shielding assembly is provided, wherein multiple closed light-shielding assemblies are slidably disposed on the adjusting sliding frame. The closed light-shielding assemblies are used to block the movement path of the laser beam, and the bottom of the closed light-shielding assemblies is connected to a bottom closing assembly.

[0009] To further adjust the position of the arc-shaped clamping frame, the position adjustment mechanism includes a rotating slot frame, a movable support, and a transverse component. The rotating slot frame is disposed on one side of the processing base, and a transmission screw is rotatably connected inside the rotating slot frame. A motor drive device is disposed on the rotating slot frame, and the output end of the motor drive device is fixedly connected to the transmission screw. The movable support is slidably connected inside the rotating slot frame and is threadedly connected to the transmission screw. The transverse component is disposed between the top two sides of the movable support and the arc-shaped clamping frame.

[0010] To facilitate the lateral movement of the arc-shaped clamping frame, the lateral movement assembly further includes a sliding groove, a bending slider, and a drive electric cylinder. The sliding groove is provided on both sides of the top of the movable support. The bending slider is slidably connected in the sliding groove and is fixedly connected to the arc-shaped clamping frame. The drive electric cylinder is mounted on the movable support, and its output end is fixedly connected to the bending slider.

[0011] To enable the adjusting sliding frame to slide on the arc-shaped sliding groove, an arc-shaped slide rail is fixedly connected to the inner bottom wall of the arc-shaped sliding groove, and arc-shaped slide grooves are provided on both inner walls of the arc-shaped slide rail.

[0012] To further support the bottom of the clamped side plate, multiple support rods are fixedly connected to the inner arc surface of the arc-shaped clamping frame.

[0013] To mark the moving position of the adjusting sliding frame, an arc-shaped mounting strip is fixedly connected to the outer arc surface of the arc-shaped slide rail, and multiple marking points are provided on the arc-shaped mounting strip.

[0014] To facilitate the installation of the adjusting sliding frame on the arc-shaped sliding groove, a clamp-type sliding seat is fixedly connected to one side of the adjusting sliding frame. Sliding protrusions are provided on both sides of the clamp-type sliding seat. The sliding protrusions are located in the arc-shaped sliding groove, and the bottom of the sliding protrusions is provided with an arc-shaped chamfer.

[0015] To further block the movement path of the laser beam, the closed light-shielding assembly includes a rectangular slider, a metal sliding cylinder, and a light-shielding cylinder. The rectangular slider is slidably connected within the adjusting sliding frame, and the metal sliding cylinder is slidably disposed within the rectangular slider. The light-shielding cylinder is located within the metal sliding cylinder, and a connecting strip is fixedly connected between the light-shielding cylinder and the metal sliding cylinder. A water-filling chamber is formed between the outer wall of the light-shielding cylinder and the inner wall of the metal sliding cylinder.

[0016] To keep the inner wall of the side panel sealed from the external environment, the bottom sealing component further includes a flexible water storage sleeve, which has a water storage chamber inside, and the water storage chamber is connected to the water injection chamber.

[0017] A laser engraving method for a tire mold side plate includes the following steps:

[0018] Step 1: Clamping the mold side plate: Move the cut tire mold side plate between the two arc-shaped clamping frames, and then start the drive electric cylinder to push the bending sliding member to move the arc-shaped clamping frame, so that the mold side plate is clamped between the two arc-shaped clamping frames.

[0019] Step 2: Move the side plate of the fixture: Start the motor drive device to drive the transmission screw to rotate, so that the moving support moves the clamped side plate to the upper side of the processing base.

[0020] Step 3: Mark the engraving area: Mark the positions on the mold side plate where laser engraving is required. After marking the mold side plate, record the positions of the marked points and the marked positions on the mold side plate. Use the marked points to determine the straight line position of the area to be laser engraved. Based on the marked laser engraving area on the side plate, adjust the position of the adjusting sliding frame on the arc-shaped sliding groove. New adjusting sliding frames can be added to the arc-shaped sliding groove using the clamp-type sliding seat.

[0021] Step 4: Isolate the laser beam: Move the rectangular slider to move the metal sliding cylinder and the light-shielding cylinder to the area on the side plate surface where the laser is being engraved, so that the laser beam passes through the light-shielding cylinder and comes into contact with the side plate surface. The light-shielding cylinder protects the laser beam. Then, water is injected into the water storage chamber through the water injection chamber, so that the bottom of the flexible water storage sleeve deforms and fits more closely with the side plate, thus isolating the laser beam from the outside world.

[0022] The working principle and beneficial effects of this invention are as follows:

[0023] In this invention, during actual use, to prevent the external environment from affecting the normal use of the laser beam after emission, after cutting the surface of the side plate, a position adjustment mechanism is used to move the arc-shaped clamping frame to clamp the side plate between two arc-shaped clamping frames. The position of the adjusting sliding frame on the arc-shaped sliding groove is adjusted, and the position of the sealing light-shielding component on the adjusting sliding frame is also adjusted, so that the sealing light-shielding component is moved to the position on the side plate where laser engraving is required. Then, the sealing light-shielding component is moved longitudinally on the adjusting sliding frame, so that the bottom... The sealing component contacts the side wall of the side plate to ensure the sealing of the laser beam's movement path. Using the above method, sealing and light-shielding components and bottom sealing components are set on multiple engraving areas of the side plate. Then, one area of ​​the side plate that needs to be laser engraved is moved to the bottom of the laser engraving equipment body. Under the action of the position adjustment mechanism, the clamped side plate is moved so that multiple engraving areas of the side plate are laser engraved in sequence. In the use of this invention, not only can the isolation between the external environment and the laser beam be ensured when engraving the laser beam emitted by the laser engraving equipment body, but the bottom sealing component can also prevent splashing problems that occur during the engraving process. Attached Figure Description

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;

[0027] Figure 3 This is a schematic diagram of the structure of the arc-shaped clamping frame, arc-shaped sliding groove, adjusting sliding frame and metal sliding cylinder in this invention.

[0028] Figure 4 This is a partial cross-sectional structural diagram showing the cooperation of the arc-shaped sliding groove, the adjusting sliding frame, the arc-shaped slide rail, and the clamp-type sliding seat in this invention;

[0029] Figure 5 For the present invention Figure 4 A magnified structural diagram of point A in the middle;

[0030] Figure 6 This is a schematic diagram of the planar structure of the rectangular sliding member, the metal sliding cylinder, the light-shielding cylinder, and the water injection chamber in this invention.

[0031] Figure 7This is a partial cross-sectional structural diagram showing the cooperation of the metal sliding cylinder, the light-shielding cylinder, the water injection chamber, the flexible water storage sleeve, and the water storage chamber in this invention.

[0032] In the diagram: 1. Processing base; 2. Laser engraving equipment body; 3. Arc-shaped clamping frame; 4. Arc-shaped sliding groove; 5. Adjustable sliding frame; 6. Rotating slot frame; 7. Transmission screw; 8. Motor drive device; 9. Moving support; 10. Sliding through groove; 11. Bending sliding component; 12. Drive electric cylinder; 13. Arc-shaped slide rail; 14. Arc-shaped slide groove; 15. Support rod; 16. Arc-shaped mounting strip; 17. Marking point; 18. Clamp-type sliding seat; 19. Sliding protrusion; 20. Rectangular sliding component; 21. Metal sliding cylinder; 22. Light-shielding cylinder; 23. Water injection chamber; 24. Flexible water storage sleeve; 25. Water storage chamber. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1, as Figures 1 to 7 As shown, this embodiment proposes a laser engraving device for the side plate of a tire mold, including a processing base 1. A laser engraving device body 2 is provided on the top of the processing base 1. The laser engraving device body 2 is a prior art device used in real life for laser engraving of the side plate of the mold, and is a prior art device known to those skilled in the art.

[0035] It also includes an arc-shaped clamping frame 3, with two arc-shaped clamping frames 3. Multiple support rods 15 are fixedly connected to the inner arc surface of the arc-shaped clamping frame 3. A friction arc surface is provided on the inner arc surface of the arc-shaped clamping frame 3. The side plate of the tire mold can be clamped by using the friction arc surface, while the bottom of the mold side plate can be supported by using the support rods 15.

[0036] A position adjustment mechanism is provided on one side of the arc-shaped clamping frame 3 and the processing base 1. The position adjustment mechanism includes a rotating slot frame 6, a movable support 9, and a transverse component. The rotating slot frame 6 is located on one side of the processing base 1. A transmission screw 7 is rotatably connected inside the rotating slot frame 6. A motor drive device 8 is provided on the rotating slot frame 6. The output end of the motor drive device 8 is fixedly connected to the transmission screw 7. The movable support 9 is slidably connected inside the rotating slot frame 6. The movable support 9 is threadedly connected to the transmission screw 7. A transverse component is provided between the top two sides of the movable support 9 and the arc-shaped clamping frame 3. When it is necessary to move the position of the arc-shaped clamping frame 3 laterally, the motor drive device 8 is started to drive the transmission screw 7 to rotate, so that the transmission screw 7 drives the movable support 9 to move inside the rotating slot frame 6 to adjust the position of the arc-shaped clamping frame 3. The movable support 9 is U-shaped, which facilitates the installation of the transverse component on the top two sides of the movable support 9.

[0037] The transverse component includes a sliding groove 10, a bent sliding member 11, and a drive electric cylinder 12. Sliding grooves 10 are provided on both sides of the top of the movable support 9. The bent sliding member 11 is slidably connected within the sliding groove 10 and is fixedly connected to the arc-shaped clamping frame 3. The drive electric cylinder 12 is mounted on the movable support 9, and its output end is fixedly connected to the bent sliding member 11. When it is necessary to move the two arc-shaped clamping frames 3 relative to each other, the drive electric cylinder 12 is activated to move the bent sliding member 11 within the sliding groove 10, allowing the two arc-shaped clamping frames 3 to clamp the mold side plate. The bent sliding member 11 is designed in a Z-shape, which ensures sufficient sliding connection area between the bottom of the bent sliding member 11 and the sliding groove 10, and also allows the top of the bent sliding member 11 to maintain sufficient movement distance relative to the arc-shaped clamping frame 3.

[0038] The top of the arc-shaped clamping frame 3 is fixedly connected to an arc-shaped sliding groove 4. Multiple adjustable sliding frames 5 are slidably connected to the arc-shaped sliding groove 4. An arc-shaped slide rail 13 is fixedly connected to the inner bottom wall of the arc-shaped sliding groove 4. Arc-shaped slide grooves 14 are provided on both sides of the inner wall of the arc-shaped slide rail 13 to enable the adjustable sliding frame 5 to move along the arc-shaped sliding area of ​​the arc-shaped sliding groove 4.

[0039] An arc-shaped mounting strip 16 is fixedly connected to the outer arc surface of the arc-shaped slide rail 13. Multiple marking points 17 are set on the arc-shaped mounting strip 16. After the cutting operation of the mold side plate, people will mark the position on the mold side plate that needs to be laser engraved. After the mold side plate is marked, the marking points 17 and the marked positions on the mold side plate can be recorded. The marking points 17 can be used to determine the straight line position of the area to be laser engraved, which makes it easier to move the adjusting sliding frame 5 to the straight line position corresponding to the laser engraving direction of the side plate.

[0040] A clamp-type sliding seat 18 is fixedly connected to one side of the adjusting sliding frame 5. Sliding protrusions 19 are provided on both sides of the clamp-type sliding seat 18. The sliding protrusions 19 are located in the arc-shaped slide groove 14. The bottom of the sliding protrusions 19 is provided with an arc-shaped chamfer. Because there are many areas on the side plate that may need laser engraving, the present invention can install multiple adjusting sliding frames 5 on the arc-shaped slide groove 4, which can move the clamp-type sliding seat 18 into the arc-shaped slide rail 13. The clamp-type sliding seat 18 has the characteristic of being deformable towards the middle area, so that the clamp-type sliding seat 18 can be smoothly squeezed into the arc-shaped slide rail 13, and the sliding protrusions 19 enter the arc-shaped slide groove 14, so that the clamp-type sliding seat 18 can slide in the arc-shaped slide rail 13, thereby adjusting the position of the adjusting sliding frame 5.

[0041] Multiple closed light-shielding components are slidably arranged on the adjusting sliding frame 5. The closed light-shielding components are used to block the movement path of the laser beam. The closed light-shielding components include a rectangular sliding member 20, a metal sliding cylinder 21, and a light-shielding cylinder 22. The rectangular sliding member 20 is slidably connected inside the adjusting sliding frame 5. The metal sliding cylinder 21 is slidably arranged inside the rectangular sliding member 20. The light-shielding cylinder 22 is located inside the metal sliding cylinder 21. A connecting strip is fixedly connected between the light-shielding cylinder 22 and the metal sliding cylinder 21. A water-filling chamber 23 is formed between the outer wall of the light-shielding cylinder 22 and the inner wall of the metal sliding cylinder 21. When the laser engraving equipment body 2 performs laser engraving on the corresponding area of ​​the side plate, the rectangular sliding member 20 is moved first to move the metal sliding cylinder 21 and the light-shielding cylinder 22 to the area of ​​the side plate surface to be laser engraved. The laser beam is protected by the light-shielding cylinder 22 after passing through the light-shielding cylinder 22.

[0042] The bottom of the enclosed shading component is connected to a bottom sealing component, which includes a flexible water storage sleeve 24. The flexible water storage sleeve 24 is provided with a water storage chamber 25. The water storage chamber 25 is connected to a water injection chamber 23. The flexible water storage sleeve 24 is tightly fitted to the bottom end of the side plate. Water is injected into the water storage chamber 25 through the water injection chamber 23, so that the bottom of the flexible water storage sleeve 24 deforms and fits more closely with the side plate.

[0043] The working principle of the laser engraving device on the side plate of the tire mold:

[0044] First, the side plate of the tire mold after cutting is moved between two arc-shaped clamping frames 3. Then, the drive electric cylinder 12 is started to push the bending sliding part 11 to move the arc-shaped clamping frame 3, so that the side plate of the mold is clamped between the two arc-shaped clamping frames 3. Then, the motor drive device 8 is started to drive the transmission screw 7 to rotate, so that the moving support 9 drives the clamped side plate to move to the upper side of the processing base 1.

[0045] According to the marked side plate laser engraving area, the position of the adjusting sliding frame 5 on the arc-shaped sliding groove 4 is adjusted. A new adjusting sliding frame 5 can be added to the arc-shaped sliding groove 4 through the clamp-type sliding seat 18. Then, the rectangular sliding member 20 is moved to move the metal sliding cylinder 21 and the light-shielding cylinder 22 to the area on the side plate surface where the laser is engraved. The laser passes through the light-shielding cylinder 22 and contacts the side plate surface. The laser beam is protected by the light-shielding cylinder 22. Water is then injected into the water storage chamber 25 through the water injection chamber 23, so that the bottom deformation of the flexible water storage sleeve 24 fits more closely with the side plate, thus isolating the laser beam from the outside world.

[0046] Example 2: Based on a laser engraving device for a tire mold side plate, the present invention also proposes a laser engraving method for a tire mold side plate, specifically including the following steps:

[0047] Step 1: Clamping the mold side plate: Move the tire mold side plate after cutting and processing to the two arc-shaped clamping frames 3, and then start the drive electric cylinder 12 to push the bending sliding part 11 to move the arc-shaped clamping frame 3 so that the mold side plate is clamped between the two arc-shaped clamping frames 3.

[0048] Step 2, Moving the side plate of the fixture: Start the motor drive device 8 to drive the transmission screw 7 to rotate, so that the moving support 9 drives the clamped side plate to move to the upper side of the processing base 1.

[0049] Step 3: Mark the engraving area: Mark the position on the mold side plate where laser engraving is required. After marking the mold side plate, the position of the marker point 17 and the marked position on the mold side plate can be recorded. The marker point 17 can be used to determine the straight line position of the area to be laser engraved. According to the marked side plate laser engraving area, the position of the adjusting sliding frame 5 on the arc-shaped sliding groove 4 can be adjusted. A new adjusting sliding frame 5 can be added to the arc-shaped sliding groove 4 through the clamp-type sliding seat 18.

[0050] Step 4: Isolate the laser beam: Move the rectangular slider 20 to move the metal sliding cylinder 21 and the light-shielding cylinder 22 to the area on the side plate surface where the laser is being engraved, so that the laser beam passes through the light-shielding cylinder 22 and comes into contact with the side plate surface. The laser beam is protected by the light-shielding cylinder 22. Then, water is injected into the water storage chamber 25 through the water injection chamber 23, so that the bottom deformation of the flexible water storage sleeve 24 fits more closely with the side plate, thus isolating the laser beam from the outside world.

[0051] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A laser engraving device for the side plate of a tire mold, comprising a processing base (1), wherein a laser engraving equipment body (2) is disposed on the top of the processing base (1), characterized in that, Also includes: Arc-shaped clamping frame (3), the number of arc-shaped clamping frames (3) is set to two, and the arc-shaped clamping frame (3) and one side of the processing base (1) are provided with a position adjustment mechanism; Arc-shaped sliding groove (4), the top of the arc-shaped clamping frame (3) is fixedly connected to the arc-shaped sliding groove (4), and multiple adjusting sliding frames (5) are slidably connected on the arc-shaped sliding groove (4); A closed light-shielding component is provided on the adjusting sliding frame (5), and the closed light-shielding component is used to close the movement path of the laser beam. The bottom of the closed light-shielding component is connected to a bottom closing component. The enclosed light-shielding component includes: A rectangular slider (20) is slidably connected inside the adjusting sliding frame (5); Metal sliding cylinder (21), the metal sliding cylinder (21) is slidably disposed inside the rectangular sliding member (20); A light-shielding cylinder (22) is located inside the metal sliding cylinder (21). A connecting strip is fixedly connected between the light-shielding cylinder (22) and the metal sliding cylinder (21). A water injection chamber (23) is formed between the outer wall of the light-shielding cylinder (22) and the inner wall of the metal sliding cylinder (21).

2. The laser engraving device for the side plate of a tire mold according to claim 1, characterized in that, The position adjustment mechanism includes: A rotating slot frame (6) is provided on one side of the processing base (1). A transmission screw (7) is rotatably connected inside the rotating slot frame (6). A motor drive device (8) is provided on the rotating slot frame (6). The output end of the motor drive device (8) is fixedly connected to the transmission screw (7). The movable support (9) is slidably connected in the rotating slot frame (6) and threadedly connected to the transmission screw (7); The lateral movement assembly is provided between the top two sides of the movable support (9) and the arc-shaped clamping frame (3).

3. The laser engraving device for the side plate of a tire mold according to claim 2, characterized in that, The lateral movement component includes: Sliding through groove (10), the sliding through groove (10) is provided on both sides of the top of the movable support (9); A bent sliding member (11) is slidably connected in the sliding through groove (10), and the bent sliding member (11) is fixedly connected to the arc-shaped clamping frame (3). A drive electric cylinder (12) is mounted on the movable support (9), and the output end of the drive electric cylinder (12) is fixedly connected to the bending sliding member (11).

4. The laser engraving device for the side plate of a tire mold according to claim 3, characterized in that, An arc-shaped slide rail (13) is fixedly connected to the inner bottom wall of the arc-shaped sliding groove (4), and arc-shaped slide grooves (14) are provided on both sides of the inner wall of the arc-shaped slide rail (13).

5. The laser engraving device for the side plate of a tire mold according to claim 4, characterized in that, Multiple support rods (15) are fixedly connected to the inner arc surface of the arc-shaped clamping frame (3).

6. The laser engraving device for the side plate of a tire mold according to claim 5, characterized in that, An arc-shaped mounting strip (16) is fixedly connected to the outer arc surface of the arc-shaped slide rail (13), and multiple marking points (17) are provided on the arc-shaped mounting strip (16).

7. The laser engraving device for the side plate of a tire mold according to claim 6, characterized in that, The adjusting sliding frame (5) is fixedly connected to a clamp-type sliding seat (18) on one side. Sliding protrusions (19) are provided on both sides of the clamp-type sliding seat (18). The sliding protrusions (19) are located in the arc-shaped sliding groove (14). The bottom of the sliding protrusions (19) is provided with an arc-shaped chamfer.

8. The laser engraving device for the side plate of a tire mold according to claim 7, characterized in that, The bottom closure component includes: A flexible water storage sleeve (24) is provided with a water storage chamber (25) inside the flexible water storage sleeve (24), and the water storage chamber (25) and the water injection chamber (23) are connected.

9. A laser engraving method for a tire mold side plate, using the laser engraving device for a tire mold side plate as described in claim 8, characterized in that, Includes the following steps: Step 1: Clamping the mold side plate: Move the tire mold side plate after cutting and processing to the two arc-shaped clamping frames (3), and then start the drive electric cylinder (12) to push the bending sliding part (11) to move the arc-shaped clamping frame (3) so that the mold side plate is clamped between the two arc-shaped clamping frames (3). Step 2, moving the side plate of the fixture: start the motor drive device (8) to drive the transmission screw (7) to rotate, so that the moving support (9) drives the clamped side plate to move to the upper side of the processing base (1); Step 3: Mark the engraving area: Mark the position on the mold side plate where laser engraving is required. After marking the mold side plate, the marking point (17) and the marked position on the mold side plate can be recorded. The marking point (17) can be used to determine the straight line position of the area to be laser engraved. According to the marked side plate laser engraving area, the position of the adjusting sliding frame (5) on the arc-shaped sliding groove (4) can be adjusted. A new adjusting sliding frame (5) can be added to the arc-shaped sliding groove (4) through the clamp-type sliding seat (18). Step 4: Isolate the laser beam: Move the rectangular slider (20) to move the metal sliding cylinder (21) and the light-shielding cylinder (22) to the area on the side plate surface where the laser is being engraved, so that the laser passes through the light-shielding cylinder (22) and comes into contact with the side plate surface. The laser beam is protected by the light-shielding cylinder (22). Then, water is injected into the water storage chamber (25) through the water injection chamber (23), so that the bottom deformation of the flexible water storage sleeve (24) fits more closely with the side plate, thus isolating the laser beam from the outside world.

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