A photolithographic pad printing die apparatus

Abstract

The application discloses a kind of photoetching pad printing mould equipment, it is related to laser processing technical field, including the workbench for fixed lifting mechanism, the lifting mechanism side lifting is provided with laser laser assembly, the laser laser assembly includes laser, scanning galvanometer and field lens, the scanning galvanometer two sides are respectively movably provided with first half cylinder and second half cylinder, the first half cylinder and second half cylinder opposite side are provided with square groove, after being placed on the convex bottom plate after being engraved pad printing mould, start motor, make first half cylinder and second half cylinder mutually move and adhere, first half cylinder automatically drives to be engraved pad printing mould and moves to the just below field lens, without additional time cost, manually adjust the position between to be engraved pad printing mould and laser laser assembly, it is convenient to quickly carry out alignment and complete processing, and the convex bottom plate avoids that to be engraved pad printing mould moves, bottom and workbench generate friction.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laser processing, in particular to a photoetching pad printing mold equipment. BACKGROUND

[0002] Laser engraving processing is the most commonly used application of laser system. According to the mechanism of laser beam and material interaction, laser processing can be divided into two categories: laser thermal processing and photochemical reaction processing. Laser thermal processing refers to using the heat effect generated by laser beam projection on the material surface to complete the processing, including laser welding, laser engraving cutting, surface modification, laser marking, laser drilling and micro processing.

[0003] The traditional mold to be processed is directly placed on the processing table when laser printing is performed by a laser machine (also called a laser printing machine). When placing, personnel need to align and adjust the mold and the laser assembly. If the position is inclined or does not correspond, it is easy to affect the printed patterns on the mold, and the protection measures of the existing equipment are not perfect. Laser is the core energy source of photoetching pad printing, and its radiation poses a potential threat to the health of the operator.

[0004] Therefore, it is necessary to provide a photoetching pad printing mold equipment to solve the above problems. SUMMARY

[0005] The purpose of the present application is to provide a photoetching pad printing mold equipment to solve the problem that the traditional mold is directly placed on the processing table when printing, and the personnel need to align and adjust the mold and the laser assembly. If the position is inclined or does not correspond, it is easy to affect the printed patterns on the mold, and the protection measures of the existing equipment are not perfect.

[0006] To achieve the above purpose, the present application provides the following technical scheme: a photoetching pad printing mold equipment, comprising a workbench for fixing a lifting mechanism, a laser assembly is movably arranged on one side of the lifting mechanism, the laser assembly comprises a laser, a scanning galvanometer and a field lens;

[0007] First half cylinder and second half cylinder are movably arranged on both sides of the scanning galvanometer, square grooves are formed on opposite sides of the first half cylinder and the second half cylinder, bottom plates are arranged at the bottom ends of the two square grooves, and limit assemblies are magnetically attracted to the top ends of the two bottom plates;

[0008] The limit assembly comprises an outer frame and an inner frame, the inner frame is sleeved in the outer frame, and the outer frame and the inner frame are both arranged in a U shape, when the first half cylinder and the second half cylinder are moved towards each other and abutted, the two inner frames abut each other and form a rectangular groove structure, the rectangular groove structure is used for clamping and placing a mold to be engraved, and the mold to be engraved is kept horizontal in the rectangular groove structure;

[0009] The first half cylinder and the second half cylinder are provided with an extension end at the top end, the first half cylinder and the second half cylinder are close to each other and form a sealed protection outside the laser laser assembly and the to-be-engraved mold, and the to-be-engraved mold in the sealed protection is located directly below the scanning galvanometer.

[0010] Preferably, a moving groove is formed at the top end of the workbench, a bidirectional screw rod is rotatably connected between the two ends inside the moving groove, and a sliding block is matched with the two opposite threads of the bidirectional screw rod, respectively, and two bottom plates are fixed at the top end of the corresponding sliding blocks, respectively.

[0011] The two bottom plates are concave and convex, respectively, and the opposite sides of the two bottom plates are mutually connected, the to-be-engraved mold is arranged on the convex bottom plate, the convex bottom plate is provided with a pressure sensor, and the opposite sides of the first half cylinder and the second half cylinder are provided with an infrared sensor.

[0012] Preferably, a fan and a small dust collector are fixed at the bottom end of the opposite sides of the first half cylinder and the second half cylinder, respectively, and air ports are formed at the bottom end of the two square grooves, respectively, and the fan and the small dust collector are communicated with the corresponding air ports, respectively.

[0013] The air port is arranged above the limiting assembly.

[0014] Preferably, an air inlet is arranged on the side of the fan away from the first half cylinder, a gas guide cover is inserted into the air inlet, a connecting port is communicated with the side of the gas guide cover away from the air inlet, and an inert gas input device is connected to one end of the connecting port.

[0015] A compression screw is arranged at the top end of the air inlet.

[0016] Preferably, a lifting groove is formed at the top end of the first half cylinder and the second half cylinder, the extension end is slidably installed inside the lifting groove, and a fixing bolt is arranged outside the first half cylinder and the second half cylinder, and one end of the fixing bolt is compressed to the surface of the corresponding extension end.

[0017] Preferably, the lifting mechanism comprises an electric vertical rail, a sliding seat is slidably matched with the electric vertical rail, the laser is fixed on the sliding seat, the scanning galvanometer is connected to one end of the laser, and the field lens is arranged at the bottom end of the scanning galvanometer.

[0018] A square protection frame is arranged outside the field lens, the square protection frame is fixed at the bottom end of the scanning galvanometer, and the shapes of the two lifting grooves inside are matched with the shape of the square protection frame outside.

[0019] Preferably, a sealing gasket is arranged inside the two lifting grooves.

[0020] Preferably, the scanning galvanometer tip is provided with a heat dissipation screen, a rotating shaft is connected to the top of the heat dissipation screen, and a wind power detection fan blade is arranged at the top of the rotating shaft.

[0021] Preferably, the moving groove is provided with an elastic heat insulation pad, and the elastic heat insulation pad is provided with a slit along the length direction, and the slit is used for sliding the sliding block.

[0022] Preferably, the outer frame and the inner frame are provided with circular grooves at the corners.

[0023] The technical effects and advantages of the present application are as follows:

[0024] 1. After placing the to-be-engraved mold on the convex bottom plate, the motor is started, the first half cylinder and the second half cylinder are moved to fit each other, the first half cylinder automatically drives the to-be-engraved mold to move to the front of the field mirror, without the need of additional time to adjust the position between the to-be-engraved mold and the laser laser assembly, so as to facilitate quick alignment and completion of processing, and the convex bottom plate avoids friction between the bottom of the to-be-engraved mold and the workbench during movement of the to-be-engraved mold, and the bottom plate can also insulate the bottom end during engraving of the to-be-engraved mold.

[0025] 2. After the butt joint of the first half cylinder and the second half cylinder, the to-be-engraved mold and the outer side of the scanning galvanometer are protected, a support is formed between the scanning field mirror and the top of the workbench, the structure stability is enhanced, and the two bottom plates are butt jointed to support the bottom end of the to-be-engraved mold, the two inner frames are butt jointed to clamp and fix the entire outer side of the to-be-engraved mold, and movement during engraving is avoided.

[0026] 3. After the first half cylinder and the second half cylinder are relatively close, the laser laser assembly and the outer side of the to-be-engraved mold are sealed and protected, the two bottom plates are butt jointed to close the bottom end of the half cylinder, the extension end is tightly fitted with the square protection frame, and the sealing gasket is matched, so as to further enhance the sealing effect, the sealed environment can not only avoid the influence of external dust and airflow on laser engraving, but also can ensure that the gas fills the entire space when the inert gas is input, so as to provide stable environmental conditions for the engraving process.

[0027] 4. The sleeve design of the outer frame and the inner frame, and the feature of being able to increase more matching mold frames enable the equipment to adapt to molds of different sizes and different specifications, greatly enhancing the versatility of the equipment, and the magnetic attraction design of the outer frame, the inner frame and the bottom plate can facilitate disassembly and installation.

[0028] 5. The height of the extension end can be adjusted according to the height of the square protection frame, and the laser laser assembly height is precisely adjusted by cooperating with the lifting mechanism, so that the equipment can adapt to engraving requirements of different heights, greatly enhancing the versatility and flexibility of the equipment.

[0029] 6. After engraving is completed, the fan and small vacuum cleaner can automatically clean the mold surface, eliminating the need for manual cleaning and further improving work efficiency. In addition, when the two semi-cylinders move away from each other, the two inner frames and the base plate separate, exposing a part of the mold to be engraved, making it easier for operators to handle and improving the convenience of operation. At the same time, it also causes the base plate to move away from under the scanning galvanometer, facilitating heat dissipation in the processing area. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the photolithography pad printing mold equipment of the present invention from one perspective.

[0031] Figure 2 This is a schematic diagram from another perspective of the photolithography pad printing mold equipment of the present invention.

[0032] Figure 3 For the present invention Figure 1 Enlarged diagram of point A in the middle.

[0033] Figure 4 For the present invention Figure 2 Enlarged diagram of point B in the middle.

[0034] Figure 5 For the present invention Figure 2 Enlarged diagram of point C in the middle.

[0035] Figure 6 This is a schematic diagram of the outer frame and inner frame separation structure of the present invention.

[0036] Figure 7 This is a schematic diagram of the docking structure between the outer frame and the inner frame of the present invention.

[0037] Figure 8 This is a schematic diagram of the bidirectional lead screw of the present invention.

[0038] Figure 9 This is a schematic diagram of the structure of the clamping screw and the air guide cover of the present invention.

[0039] Figure 10 This is a schematic diagram of the air inlet structure of the present invention.

[0040] In the diagram: 1. Workbench; 2. Lifting mechanism; 3. Laser; 4. Scanning galvanometer; 5. Square protective frame; 6. First semi-cylinder; 7. Second semi-cylinder; 8. Mini vacuum cleaner; 9. Motor; 10. Air inlet; 11. Moving slot; 12. Base plate; 13. Limiting component; 14. Infrared sensor; 15. Extension end; 16. Sealing gasket; 17. Fixing bolt; 18. Lifting slot; 19. Fan; 20. Heat dissipation filter; 21. Wind power detection fan blade; 22. Shaft; 23. Outer frame; 24. Inner frame; 25. Circular slot; 26. Mold to be engraved; 27. Bidirectional lead screw; 28. Elastic heat insulation pad; 29. ​​Slit; 30. Clamping screw; 31. Air guide cover; 32. Connection port; 33. Air inlet; 34. Square slot. Detailed Implementation

[0041] This invention provides, for example Figures 1-10 The photolithography pad printing mold equipment shown includes a worktable 1 for fixing the lifting mechanism 2. The worktable 1 serves as a basic load-bearing component, providing a stable support platform for the entire equipment.

[0042] like Figure 1 , 8 As shown, a first semi-cylinder 6 and a second semi-cylinder 7 are movably mounted on both sides of the scanning galvanometer 4. The first semi-cylinder 6 and the second semi-cylinder 7 can be made of stainless steel, aluminum alloy, or carbon structural steel. A movable groove 11 is provided at the top of the worktable 1. A bidirectional lead screw 27 is rotatably connected between the two ends inside the movable groove 11. Slider blocks (not shown in the diagram, but not described in detail as this is a common technology) are fitted onto the two reverse threads of the bidirectional lead screw 27 and slide within the movable groove 11. Two base plates 12 are fixed to the tops of the corresponding sliders. An embedded groove is provided on one side of the movable groove 11, and a motor 9 is installed inside the embedded groove. The drive shaft of the motor 9 is fixedly connected to one end of the bidirectional lead screw 27. The motor 9 is a servo motor, which can drive the bidirectional lead screw 27 to rotate in both directions.

[0043] like Figure 3 As shown, an elastic heat insulation pad 28 is provided in the moving groove 11. The elastic heat insulation pad 28 has a slit 29 along its length, through which the slider slides. The elastic heat insulation pad 28 serves as a heat insulation pad.

[0044] like Figure 1As shown, under the drive of the motor 9, the slider matched with it can move in opposite directions, and then realize the approach and away of the first half cylinder 6 and the second half cylinder 7. The elastic heat insulation pad 28 arranged in the moving groove 11 can not only effectively block the heat on the workbench 1 from being transmitted to the internal components such as the bidirectional lead screw 27, but also ensure the smooth sliding of the slider through the slit 29, and reduce the interference of the external environment temperature on the internal components, so as to ensure the stability and service life of the components in long-term work, and avoid a large amount of dust from the outside entering the inside of the moving groove 11, which affects the sliding effect of the slider.

[0045] As shown in Figure 1 , 2 , the laser laser assembly is arranged on one side of the lifting mechanism 2 in a lifting manner, and the laser laser assembly comprises a laser 3, a scanning galvanometer 4 and a field lens. The scanning galvanometer 4 is connected to one end of the laser 3, and the field lens is arranged at the bottom end of the scanning galvanometer 4. A square protection frame 5 is arranged outside the field lens, and the top end of the square protection frame 5 is fixed to the bottom end of the scanning galvanometer 4. The laser 3 serves as a laser emitting source and can stably output laser; the scanning galvanometer 4 is connected to one end of the laser 3 and can quickly change the propagation direction of the laser to realize rapid scanning of the engraved area; and the field lens is arranged at the bottom end of the scanning galvanometer 4 and can focus the laser on the surface of the mold to be engraved 26 to ensure the clarity of the engraving.

[0046] As shown in Figure 1 , 2 , square grooves 34 are arranged on opposite sides of the first half cylinder 6 and the second half cylinder 7, which provide accommodation spaces for the limiting assembly 13 and the mold to be engraved 26. The first half cylinder 6 and the second half cylinder 7 are arranged in a lifting manner at the top ends and have extension ends 15. The opposite sides of the two extension ends 15 are consistent in size with the square grooves 34. Sealing pads 16 are arranged inside the two lifting grooves 18. The square protection frame 5 outside the field lens can not only protect the field lens from being damaged by external impact, but also match the inside of the lifting grooves 18 of the first half cylinder 6 and the second half cylinder 7 in shape. When the two half cylinders are close to each other, they can be tightly matched with the lifting grooves 18 and the sealing pads 16 inside, so as to further enhance the sealing property of the sealed environment.

[0047] It should be noted that sealing soft pads or the like can also be added to the opposite sides of the first half cylinder 6 and the second half cylinder 7. After the first half cylinder 6 and the second half cylinder 7 are connected, a seal is formed, and the mold to be engraved 26 in the sealed protection is located directly below the scanning galvanometer 4.

[0048] The lifting mechanism 2 comprises an electric vertical rail, and a sliding seat is slidably connected to the electric vertical rail. The laser 3 is fixed to the sliding seat, and the shapes of the inside of the two lifting grooves 18 and the outside of the square protection frame 5 are matched. The electric vertical rail makes the height adjustment of the laser laser assembly more accurate and convenient.

[0049] As shown in Figure 3 ,6 As shown in Figures 7 and 8, a base plate 12 is provided at the bottom of each of the two square grooves 34, and a limit component 13 is magnetically attached to the top of each of the two base plates 12. The base plate 12 is fixed inside the corresponding square groove 34.

[0050] The limiting component 13 includes an outer frame 23 and an inner frame 24. The outer frame 23 and the inner frame 24 can be matched with different sizes of molds 26 to be engraved. The inner frame 24 is fitted inside the outer frame 23, and both the outer frame 23 and the inner frame 24 are U-shaped. When the first semi-cylinder 6 and the second semi-cylinder 7 move towards each other and fit together, the two inner frames 24 fit together to form a rectangular groove structure. The rectangular groove structure is used to hold the mold 26 to be engraved. The mold 26 to be engraved is kept horizontal in the rectangular groove structure, which also reduces the risk of the operator being scratched when installing and disassembling the mold and improves the safety of operation.

[0051] In actual use, the mold to be engraved 26 is placed on the base plate 12 and locked with one of the inner frames 24. The person presses down on the mold to be engraved 26 to lock the mold to be engraved 26 and the inner frame 24, and to make the mold to be engraved 26 fit against the base plate 12 and keep it horizontal to avoid tilting the mold to be engraved 26.

[0052] The outer frame 23 and inner frame 24 are magnetically attached to the base plate 12, which facilitates installation and disassembly. Since the outer frame 23 and inner frame 24 are different sizes, they can clamp and fix molds 26 of different sizes to be engraved. After removing the inner frame 24, the outer frame 23 can be used to fix larger molds 26 to be engraved. The appropriate outer frame 23 and inner frame 24 can be flexibly replaced according to different specifications of molds 26 to be engraved, which enhances the versatility of the equipment.

[0053] It should be noted that in actual production, gradually smaller fixing frames are added sequentially inside the inner frame 24, so that they are nested together to increase the need for fixing the molds 26 to be engraved of different sizes.

[0054] like Figure 6 , 7 As shown, the two base plates 12 are respectively concave and convex, and the two base plates 12 are joined together on opposite sides. The mold to be engraved 26 is placed on the convex base plate 12, and an infrared sensor 14 is provided on the convex base plate 12. The convex base plate 12 supports a portion of the bottom end of the mold to be engraved 26. After the first semi-cylinder 6 and the second semi-cylinder 7 are brought close together, they form a sealed protection for the laser assembly and the outer side of the mold to be engraved 26.

[0055] Specifically, the first half-cylinder 6 and the second half-cylinder 7 are attached to each other to form a cylindrical protective structure. Since the scanning galvanometer 4 is stationary, the two extension ends 15 can clamp the two sides of the square protective frame 5. After moving, the to-be-engraved mold 26 is located directly below the scanning galvanometer 4. At this time, the to-be-engraved mold 26, the scanning galvanometer 4, and the first half-cylinder 6 and the second half-cylinder 7 are in a vertical state, which facilitates the subsequent laser laser assembly to perform direct engraving on the to-be-engraved mold 26.

[0056] The convex bottom plate 12 has a larger contact area with the to-be-engraved mold 26, which can provide more stable support for the mold. At the same time, during the movement of the mold, the friction between the bottom of the mold and the workbench 1 is avoided, and the wear of the mold is reduced. When the two bottom plates 12 are connected, they can not only form complete support for the bottom end of the to-be-engraved mold 26, but also can close the bottom end of the two half-cylinders, thereby enhancing the sealing effect.

[0057] The convex bottom plate 12 is provided with a pressure sensor or a diffuse reflection photoelectric sensor, and the first half-cylinder 6 and the second half-cylinder 7 are provided with an infrared sensor 14 (a reflection type infrared sensor can be used) on the opposite side. It should be noted that the workbench 1 is provided with a controller, and the infrared sensor 14 and the pressure sensor (or the diffuse reflection photoelectric sensor) are connected to the controller. The controller is connected to the motor 9.

[0058] When the mold is placed in the inner frame 24, the emission light path of the diffuse reflection photoelectric sensor is blocked (or the pressure sensor detects pressure), and the sensor sends a "placement complete" signal to the controller, triggering the motor 9 to start and drive the half-cylinder to close.

[0059] The reflection type infrared sensor is used to detect whether there is foreign matter (such as the hands of the operator or tools) during the closing process. When the two cylinders are close, if the infrared reflection light path is blocked, the sensor immediately sends a signal to the controller, and the controller cuts off the power supply of the motor 9 to stop the movement of the half-cylinder, thereby avoiding collision.

[0060] It should be noted that the "stop signal" of the reflection type infrared sensor has a higher priority than the "start signal" of the diffuse reflection photoelectric sensor, so that any detected obstacles can immediately interrupt the action.

[0061] The circular grooves 25 formed at the corners of the outer frame 23 and the inner frame 24 not only avoid damage to the to-be-engraved mold 26 caused by the sharp corners, but also facilitate the separation of the outer frame 23 and the inner frame 24.

[0062] For example, Figure 1 , 2As shown, the first half cylinder 6 and the second half cylinder 7 are respectively fixed with a fan 19 and a small vacuum cleaner 8 on the side away from the bottom end, the bottom end of the two square grooves 34 is provided with an air port 10, the fan 19 and the small vacuum cleaner 8 are respectively communicated with the corresponding air port 10, and the fan 19 is provided with an air inlet 33 on the side away from the first half cylinder 6; the air port 10 is arranged above the limiting assembly 13.

[0063] The wind power generated by the fan 19 can blow the dust on the surface of the to-be-engraved mold 26 to the small vacuum cleaner 8, which is collected and processed by the small vacuum cleaner 8, so that the to-be-engraved mold 26 is quickly cleaned, the manual cleaning step is saved, and the working efficiency is improved.

[0064] As shown in Figure 9 , 10 When the inert gas needs to be input, the air guide cover 31 is inserted into the air inlet 33, the side away from the air inlet 33 of the air guide cover 31 is communicated with the connecting port 32, one end of the connecting port 32 is connected with the inert gas input device, when the inert gas protection environment is needed, the air in the sealed environment is first sucked out by the small vacuum cleaner 8, and then the input speed of the inert gas is accelerated by the fan 19, so that the inert gas fills the entire sealed space, which effectively prevents the oxidation of the material in the laser engraving process, especially for the materials sensitive to oxidation, and widens the application range of the equipment. The pressing screw 30 at the top end of the air inlet 33 can firmly fix the air guide cover 31, so as to avoid the influence of gas leakage on the protection effect.

[0065] The air inlet 33 is provided with a pressing screw 30 at the top end. The pressing screw 30 can firmly fix the air guide cover 31, so as to avoid the influence of gas leakage on the protection effect.

[0066] As shown in Figure 2 , 4 The first half cylinder 6 and the second half cylinder 7 are respectively provided with a lifting groove 18 at the top end, the extension end 15 is slidingly installed in the lifting groove 18, and the first half cylinder 6 and the second half cylinder 7 are respectively provided with a fixing bolt 17 on the outer side, and one end of the fixing bolt 17 is pressed against the surface of the corresponding extension end 15. The outer fixing bolt 17 can be pressed and fixed. The height of the extension end 15 can be adjusted according to the height of the square protection frame 5, so as to ensure that the extension end 15 can be closely combined with the square protection frame 5 when the first half cylinder 6 and the second half cylinder 7 are close, and the sealed environment is further improved. This adjustable design can meet the height requirement of the lifting laser module, and improves the flexibility of the equipment.

[0067] It should be noted that when the two extension ends 15 are slidingly extended in the first half cylinder 6 and the second half cylinder 7, the extension lengths of the two extension ends 15 are kept consistent, so as to avoid tilting.

[0068] Specifically, a scale can also be arranged on the two extension ends 15 along the length direction, facilitating personnel to view when aligning, so that the extension lengths are consistent, and an electric push rod can be added inside the lifting groove 18 of the first half cylinder 6 and the second half cylinder 7 as needed, the electric push rod is connected to the bottom of the corresponding extension end 15, the two extension ends 15 are driven to rise by the electric push rod, and the electric push rods are connected to the same control system, and the lifting heights are controlled by the control system.

[0069] As shown in Figure 5 The top end of the scanning galvanometer 4 is provided with a heat dissipation screen 20, the top end of the heat dissipation screen 20 is rotationally connected with a rotating shaft 22, the top end of the rotating shaft 22 is provided with a wind power detection fan blade 21, the size of the heat dissipation airflow can be directly reflected by the rotation of the wind power detection fan blade 21, the operator can thus timely know the heat dissipation condition of the scanning galvanometer 4, and ensure that the equipment is always in a good working condition, and meanwhile, when the scanning galvanometer 4 is not working, whether the external environment wind power changes can be detected by the wind power detection fan blade 21.

[0070] Working principle: in the initial state, the first half cylinder 6 and the second half cylinder 7 are arranged away from each other, and are respectively located at both ends of the moving groove 11, and the laser group is arranged at the intermediate position between the first half cylinder 6 and the second half cylinder 7.

[0071] The to-be-engraved mold 26 is placed on the convex bottom plate 12 (the convex bottom plate 12 has a larger contact area than the concave bottom plate 12 and the to-be-engraved mold 26), the inner frame 24 of the bottom plate 12 can preliminarily position the to-be-engraved mold 26, and the to-be-engraved mold 26 is pressed downward by the personnel, on the one hand, the to-be-engraved mold 26 is clamped with the inner frame 24, and on the other hand, the to-be-engraved mold 26 is attached to the bottom plate 12 and kept horizontal, so as to avoid the to-be-engraved mold 26 from being inclined, the infrared sensor 14 detects that the to-be-engraved mold 26 is placed, transmits a signal to the controller, the controller controls the motor 9 to start, drives the bidirectional lead screw 27 to rotate, so as to drive the first half cylinder 6 and the second half cylinder 7 to move close to each other and drive the to-be-engraved mold 26 to move, and the convex bottom plate 12 avoids friction between the bottom of the to-be-engraved mold 26 and the workbench 1 when the to-be-engraved mold 26 moves.

[0072] The first half cylinder 6 can automatically drive the placed to-be-engraved mold 26 to move directly below the field lens, without the need of spending extra time to manually adjust the position between the to-be-engraved mold 26 and the laser group, so as to facilitate rapid alignment and completion of processing.

[0073] When the first half-cylinder 6 and the second half-cylinder 7 are attached to each other, the two extended ends 15 and the square protective frame 5 are attached, the two bottom plates 12 are butted against each other (forming complete support for the bottom end of the to-be-engraved mold 26, and at the same time, the bottom end of the first half-cylinder 6 and the second half-cylinder 7 is closed), the two limiting assemblies 13 form complete clamping and fixing for the outside of the to-be-engraved mold 26, and finally, a sealed environment for the to-be-engraved mold 26 and the protection of the bottom end of the scanning galvanometer 4 is formed. The first half-cylinder 6 and the second half-cylinder 7 form support between the scanning galvanometer 4 and the top end of the workbench 1, enhance the structural stability, and at the same time, in the laser engraving, avoid the influence of external dust or air flow.

[0074] When the engraving is completed, the fan 19 and the small vacuum cleaner 8 are started at the same time. The wind power generated by the fan 19 can blow the dust on the surface of the to-be-engraved mold 26 to the small vacuum cleaner 8, and the small vacuum cleaner 8 can absorb and process it.

[0075] Further, the air guide cover 31 can be connected at the air inlet 33 of the fan 19. The connecting port 32 on the air guide cover 31 is connected to the inert gas input device. The fan 19 can accelerate the input speed of the gas, so that the inert gas can be input into the first half-cylinder 6 and the second half-cylinder 7, and the laser engraving environment is protected (it is necessary to note that the small vacuum cleaner 8 first sucks out the internal air, and then the inert gas is introduced).

[0076] When the engraving is completed, the controller controls the bidirectional lead screw 27 to rotate reversely, so that the first half-cylinder 6 and the second half-cylinder 7 move away from each other. The first half-cylinder 6 drives the to-be-engraved mold 26 to move at the same time, so that the two limiting assemblies 13 (i.e. the two inner frames 24 or the outer frames 23) are separated. After separation, a part of the to-be-engraved mold 26 is exposed, which is more convenient for taking. After the first half-cylinder 6 and the second half-cylinder 7 move away from each other, no protrusion is generated on the workbench 1, which is convenient for subsequent cleaning.

Claims

1. A photo-etching pad printing die device, comprising a workbench (1) for fixing a lifting mechanism (2), and a laser laser assembly is arranged on one side of the lifting mechanism (2), characterized in that: The laser assembly comprises a laser (3), a scanning galvanometer (4) and a field lens; The first half cylinder (6) and the second half cylinder (7) are movably arranged on the two sides of the scanning galvanometer (4), and square grooves (34) are formed in the opposite sides of the first half cylinder (6) and the second half cylinder (7); the bottom ends of the two square grooves (34) are fixedly connected with bottom plates (12), and the top ends of the two bottom plates (12) are magnetically connected with limiting assemblies (13). The limiting assembly (13) comprises an outer frame (23) and an inner frame (24), the inner frame (24) is sleeved in the outer frame (23), and the outer frame (23) and the inner frame (24) are both arranged in a U shape; when the first half cylinder (6) and the second half cylinder (7) are moved towards each other and abutted, the two inner frames (24) abut against each other and form a rectangular groove structure, the rectangular groove structure is used for clamping and placing a to-be-engraved mold (26), and the to-be-engraved mold (26) is kept horizontal in the rectangular groove structure. The top ends of the first half cylinder (6) and the second half cylinder (7) are movably arranged with extension ends (15); when the first half cylinder (6) and the second half cylinder (7) are relatively close, a sealing protection is formed outside the laser assembly and the to-be-engraved mold (26), and the to-be-engraved mold (26) in the sealing protection is located directly below the scanning galvanometer (4).

2. A photolithographic pad printing die apparatus according to claim 1, wherein: The top end of the workbench (1) is provided with a moving groove (11), and a bidirectional screw rod (27) is rotatably connected between the two ends in the moving groove (11); the two opposite threads of the bidirectional screw rod (27) are respectively matched with sliding blocks, and the two bottom plates (12) are respectively fixed on the top ends of the corresponding sliding blocks. The two bottom plates (12) are respectively arranged in concave and convex shapes, and the opposite sides of the two bottom plates (12) are abutted against each other; the to-be-engraved mold (26) is arranged on the convex bottom plate (12); the convex bottom plate (12) is provided with a pressure sensor; and the opposite sides of the first half cylinder (6) and the second half cylinder (7) are provided with infrared sensors (14).

3. The photolithographic pad printing die apparatus of claim 1, wherein: The bottom ends of the opposite sides of the first half cylinder (6) and the second half cylinder (7) are respectively fixed with a fan (19) and a small vacuum cleaner (8); the bottom ends of the two square grooves (34) are respectively provided with air ports (10); and the fan (19) and the small vacuum cleaner (8) are respectively communicated with the corresponding air ports (10). The air port (10) is arranged above the limiting assembly (13).

4. A photolithographic pad printing die apparatus according to claim 3, wherein: The side, away from the first half cylinder (6), of the fan (19) is provided with an air inlet (33); a gas guide cover (31) is inserted into the air inlet (33); the side, away from the air inlet (33), of the gas guide cover (31) is communicated with a connecting port (32); and one end of the connecting port (32) is connected with an inert gas input device. The top end of the air inlet (33) is provided with a pressing screw (30).

5. The photolithographic pad printing die apparatus of claim 1, wherein: The top ends of the first half cylinder (6) and the second half cylinder (7) are respectively provided with lifting grooves (18); the extension ends (15) are slidably arranged in the lifting grooves (18); the outer sides of the first half cylinder (6) and the second half cylinder (7) are respectively provided with fixed bolts (17); and one end of the fixed bolt (17) is pressed against the surface of the corresponding extension end (15).

6. The photolithographic pad printing die apparatus of claim 1, wherein: The lifting mechanism (2) comprises an electric vertical rail, a sliding seat is slidingly fitted on the electric vertical rail, the laser (3) is fixed on the sliding seat, the scanning galvanometer (4) is connected to one end of the laser (3), and the field lens is arranged at the bottom end of the scanning galvanometer (4). A square protection frame (5) is arranged outside the field lens, the square protection frame (5) is fixed at the bottom end of the scanning galvanometer (4), and the shapes of the inner sides of the two lifting grooves (18) are matched with the outer side of the square protection frame (5).

7. A photolithographic pad printing die apparatus according to claim 5, wherein: The inner sides of the two lifting grooves (18) are each provided with a sealing gasket (16).

8. The photolithographic pad printing die apparatus of claim 1, wherein: The scanning galvanometer (4) is provided with a heat dissipation filter screen (20) at the top end, the heat dissipation filter screen (20) is rotationally connected with a rotating shaft (22) at the top end, and the rotating shaft (22) is provided with a wind power detection fan blade (21) at the top end.

9. The photolithographic pad printing die apparatus of claim 2, wherein: The moving groove (11) is provided with an elastic heat insulation pad (28), the elastic heat insulation pad (28) is provided with a fine gap (29) along the length direction, and the fine gap (29) is used for sliding of the sliding block.

10. The photolithographic pad printing die apparatus of claim 1, wherein: The outer frame (23) and the inner frame (24) are each provided with a circular groove (25) at the corner.

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