Laser engraving machine for mold cavity texture engraving machining

Abstract

The invention relates to the technical field of laser engraving, and discloses a laser engraving machine for mold cavity texture engraving processing, which comprises a case, an X-axis moving module, a Y-axis moving module, a laser module and a fixing plate are arranged in the case, and is characterized in that the fixing plate is mounted on a base of the Y-axis moving module, a back plate is arranged on one side of the fixing plate, and the X-axis moving module, the Y-axis moving module, the laser module and the fixing plate are arranged in the case. One side of the back plate is rotatably connected with a frame through a transmission mechanism, one end of the frame is provided with a mounting port, the mounting port is internally and rotatably connected with a sleeve through an adjusting assembly, the sleeve is internally provided with a fixing mechanism, the fixing mechanism is used for mounting a laser module and can cool the laser module, and one side of the case is provided with an opening. According to the laser engraving machine for mold cavity texture engraving machining, the laser module can be adjusted to integrally swing to the inclined posture to enter the mold cavity, the texture engraving machining efficiency is improved, efficient temperature control can be conducted on the laser module, and the laser module is made to be in a reasonable working environment.

Description

Technical Field

[0001] The invention relates to the technical field of laser engraving, in particular to a laser engraving machine for engraving and processing mold cavity textures. Background Art

[0002] Mould etching is a common process for mould surface treatment, which directly affects the appearance and surface strength of the product surface. It is widely used due to its low process cost, rich effects and fast speed. Laser engraving machine is an advanced equipment that uses laser to engrave the material to be engraved. It can improve the efficiency of engraving, make the surface of the engraved part smooth and round, quickly reduce the temperature of the engraved non-metallic material, and reduce the deformation and internal stress of the engraved object.

[0003] After massive searches, it was found that the prior art publication number is CN116372362A, which discloses a combined mechanical arm automatic spraying and laser engraving equipment for mold etching, including a combined mechanical arm for laser engraving movement, one end of the combined mechanical arm is movably connected to a laser engraving instrument, a ring frame is fixedly installed on the outer wall of the laser engraving instrument, a driving component for moving the spraying equipment is arranged in the ring frame, a ring plate is arranged at one end of the driving component, a water collecting chamber is fixedly installed on the lower end face of the ring plate, a water outlet chamber is fixedly installed at one end of the water collecting chamber, a water spray chamber is arranged in the water outlet chamber to change the cooling liquid spraying range. A protective nozzle is arranged in the water spray chamber, and a nozzle is arranged in the water spray chamber. Through the cooperation of the auxiliary component and the adjustment component, the two cooling liquids entering the water outlet chamber are transformed into two different spraying forms, which is convenient for operation, and at the same time, the driving component is cooperated to make the device adapt to processing at different positions.

[0004] The laser engraving machine mainly includes a motion system, a control system and a laser module. The motion system of the laser engraving machine realizes the precise positioning and movement of the laser module on the plane through the relative movement of the X-axis and the Y-axis, and completes the fine processing of the workpiece surface. When the laser head of the laser engraving machine approaches the upper limit switch, the switch will be triggered, thereby stopping the movement of the laser engraving machine to prevent the laser head from hitting the boundary of the machine or exceeding the working range, protecting the safety of the equipment and the workpiece. In addition, the engraving machine also has ventilation and exhaust gas treatment functions. Because the laser is a high-temperature processing, smoke and exhaust gas may be generated during processing. Ensure that the working area has sufficient ventilation to eliminate the harmful gases and smoke generated by laser engraving. If necessary, install the exhaust gas treatment equipment appropriately to prevent the pollutants from affecting the health of the operator, and the laser module can also be cooled during exhaust to reduce the heat generated by the laser module when it is working, so as to ensure that it can work for a long time.

[0005] At present, engraving machines usually use the airflow of smoke exhaust in the chassis to cool down the laser module, but this cooling efficiency is low and cannot meet the temperature control requirements of high-power laser modules. In addition, since the laser module is directly installed on the motion system and relies on the inclined laser beam emitted by the laser module itself for engraving, it is difficult to efficiently perform texture engraving in the uneven mold cavity.

[0006] In view of the above-mentioned defects, the designer actively carried out research and innovation in order to create a laser engraving machine for mold cavity texture engraving processing, so that it has more industrial utilization value. Summary of the invention

[0007] 1. Technical issues to be resolved

[0008] In view of the shortcomings of the prior art, the present invention provides a laser engraving machine for mold cavity texture engraving, which solves the problem that the traditional cooling efficiency is low and cannot meet the temperature control requirements of high-power laser modules. In addition, since the laser module is directly installed on the motion system and relies on the inclined laser beam emitted by the laser module itself for engraving, it is difficult to efficiently perform texture engraving in the uneven mold cavity.

[0009] (II) Technical solution

[0010] To achieve the above-mentioned purpose, the present invention provides the following technical solutions:

[0011] A laser engraving machine for mold cavity texture engraving processing comprises a chassis, wherein an X-axis moving module, a Y-axis moving module, a laser module and a fixed plate are arranged in the chassis, wherein the fixed plate is mounted on a base of the Y-axis moving module, wherein a back plate is arranged on one side of the fixed plate, wherein one side of the back plate is rotatably connected to a frame via a transmission mechanism, wherein an installation opening is provided at one end of the frame, wherein a sleeve is rotatably connected to the installation opening via an adjustment component, wherein a fixing mechanism is installed in the sleeve, wherein the fixing mechanism is used to install the laser module and can cool the laser module;

[0012] An opening is provided on one side of the chassis, and a cover plate is hingedly connected to the opening through a hinge, and a filter is installed on the cover plate;

[0013] The fixing mechanism comprises a sleeve, two annular tubes are connected inside the sleeve, a plurality of spiral tubes are commonly connected between the two annular tubes, and the spiral tubes communicate with the two annular tubes, the laser module is installed in the two annular tubes, the plurality of spiral tubes are all wound around the side wall of the laser module, and an exhaust channel is formed between two adjacent spiral tubes;

[0014] A liquid inlet pipe is connected to the tube wall of one of the annular tubes, and a liquid return pipe is connected to the tube wall of the other annular tube. One end of the liquid return pipe passes through the side wall of the sleeve. Two fixing rings are connected to the tube wall of the sleeve, and the two fixing rings are respectively located at the upper and lower ends of the sleeve.

[0015] As a further improvement of the present invention, two annular grooves are arranged on the tube wall of the sleeve, and a plurality of evenly distributed through holes are opened at the bottom of the two annular grooves, wherein a first annular cover is connected to the notch of one of the annular grooves, and a second annular cover is connected to the notch of the other annular groove, an air inlet pipe is connected to the side wall of the first annular cover, and two exhaust pipes are fixedly and symmetrically connected to the side wall of the second annular cover.

[0016] As a further improvement of the present invention, an air collecting hood is connected to the outer edge of the lower pipe opening of the sleeve, a plurality of evenly distributed negative pressure holes are opened at the corners of the air collecting hood, an exhaust port is arranged at one end of the air collecting hood, two transverse pipes are connected to the exhaust port, the exhaust pipe extends into the air collecting hood and is connected to a nozzle, and the nozzle is coaxially arranged in the transverse pipe.

[0017] As a further improvement of the present invention, the adjustment assembly includes a bracket, which is installed on one side of a frame, a first motor is connected to one side of the frame, a worm is connected to the output end of the first motor, a worm is meshed with a worm wheel on one side of the worm, and two rotating shafts are symmetrically connected to the side wall of the sleeve, and the two rotating shafts are rotatably connected to the side wall of the frame through ball bearings, and one end of one of the rotating shafts passes through the ball bearing and is coaxially connected to one side of the worm wheel.

[0018] As a further improvement of the present invention, the transmission mechanism includes a mounting frame, which is mounted on one side of the back plate, the upper end of the mounting frame is connected to the second motor, the side wall of the mounting frame is rotatably connected to the main shaft through a rolling bearing, the lower end of the main shaft is connected to the upper end of the frame, a synchronous belt is sleeved on the shaft wall of the main shaft, two synchronous wheels are sleeved in the synchronous belt, one of the synchronous wheels is mounted on the shaft wall of the main shaft, and the other synchronous wheel is coaxially mounted on the output end of the second motor.

[0019] As a further improvement of the present invention, a recessed portion is provided on the tube wall of the sleeve, the recessed portion forms an annular protrusion inside the sleeve, the annular protrusion forms a flow limiting portion in the exhaust channel, and a lower recessed portion is provided on the tube wall of the spiral tube, the lower recessed portion forms a spoiler on the inner side of the spiral tube.

[0020] As a further improvement of the present invention, a rectangular opening is provided on the side wall of the fixed plate, an electric push rod is connected to the inside of the rectangular opening, an output end of the electric push rod passes through one side of the rectangular opening and is connected to a connecting block, the connecting block is connected to the lower end of the back plate, slide rails are connected to the opposite side edges of the back plate, and slide grooves are provided on the opposite sides of the fixed plate, and the slide grooves cooperate with the slide rails.

[0021] As a further improvement of the present invention, a partition is connected inside the chassis, the upper end of the partition is connected to a carrier, the four corners of the partition are connected to air guide plates, the side wall of the air guide plate is provided with an air inlet, the upper end of the air guide plate is provided with a sealing portion, one side of the chassis is connected to a negative pressure pipe, and one side of the chassis is connected to an exhaust fan.

[0022] (III) Beneficial effects

[0023] Compared with the prior art, the present invention provides a laser engraving machine for mold cavity texture engraving, which has the following beneficial effects:

[0024] 1. When the present invention is in use, the X-axis moving module and the Y-axis moving module installed in the chassis can generate displacement in the horizontal and vertical directions so that the laser module can adjust its position to perform texture engraving in the mold cavity; in addition, the laser module is installed in the sleeve. When it is necessary to change its inclination angle, the first motor is started to drive the worm to rotate the worm wheel, and the rotation of the worm wheel drives the rotating shaft to swing the sleeve. When the sleeve swings, it can drive the laser module installed in the sleeve through the fixing mechanism to swing, so that the laser module can swing within a small range. In addition, the laser module itself can emit a laser beam with an inclined angle, so that the laser beam generated by the laser module is obliquely irradiated in the mold cavity, thereby improving the efficiency of texture engraving.

[0025] 2. When the fixing mechanism of the present invention is in use, the coolant is input into the liquid inlet pipe, the coolant enters the upper annular pipe and enters the lower annular pipe from the plurality of spiral pipes, and the coolant flows back to the coolant tank from the return pipe, thus forming a circulating cooling flow path, and at this time, liquid cooling can be used to reduce the temperature generated when the laser module is working;

[0026] 3. In addition, compressed gas is sent into the first annular cover through the air inlet pipe, and then the compressed gas passes through the through hole into the exhaust channel. Under the structural restriction of the spiral tube, when the compressed gas passes through the exhaust channel of the spiral structure, it can cool down the laser module and the coolant in the spiral tube;

[0027] 4. The compressed gas enters the second annular cover from the through hole, and is finally ejected through the nozzle on the exhaust pipe to form a high-speed airflow in the horizontal pipe. When the airflow is discharged, a pressure difference is formed at both ends of the horizontal pipe. In this way, the end of the horizontal pipe that generates negative pressure suction can extract the smoke floating near the laser module from the negative pressure hole on the wind collecting cover, and the adsorbed smoke is discharged through the exhaust port to prevent the smoke from floating near the laser module and affecting the light exposure.

[0028] 5. When the transmission mechanism provided in the present invention is in use, the second motor synchronous wheel is started to rotate, driving the synchronous belt to rotate another synchronous wheel. At this time, the synchronous wheel drives the main shaft to rotate the frame. When the frame rotates, it drives the fixing mechanism to make the laser module do circular motion around the main shaft.

[0029] 6. When the adjustment component drives the laser module to tilt, the transmission mechanism can drive the laser module to do circular motion in a tilted posture, which can effectively adapt to the concave and convex surfaces in the mold cavity and improve the working efficiency of the laser engraving machine.

[0030] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings as shown below. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 This is a schematic diagram of the structure of a laser engraving machine for mold cavity texture engraving proposed by the present invention;

[0033] Figure 2 A cross-sectional view of a chassis in a laser engraving machine for mold cavity texture engraving processing proposed by the present invention Figure 1 ;

[0034] Figure 3 A cross-sectional view of a chassis in a laser engraving machine for mold cavity texture engraving processing proposed by the present invention Figure 2 ;

[0035] Figure 4 This is a structural schematic diagram of a fixing mechanism, an adjusting component and a transmission mechanism in a laser engraving machine for mold cavity texture engraving processing proposed by the present invention;

[0036] Figure 5This is a schematic structural diagram of a transmission mechanism, an adjustment component, a sleeve and a frame in a laser engraving machine for mold cavity texture engraving processing proposed by the present invention;

[0037] Figure 6 This is a schematic structural diagram of a sleeve, a first annular cover, a second annular cover, a fixing ring and a laser module in a laser engraving machine for mold cavity texture engraving processing proposed by the present invention;

[0038] Figure 7 This is a schematic diagram of the structure of a sleeve, a spiral tube and a ring tube in a laser engraving machine for mold cavity texture engraving processing proposed by the present invention;

[0039] Figure 8 This is a schematic diagram of the structure of a liquid inlet pipe, a liquid return pipe, a spiral pipe, and a ring pipe in a laser engraving machine for mold cavity texture engraving processing proposed by the present invention;

[0040] Fig. 9 This is a schematic structural diagram of a back plate and a fixed plate in a laser engraving machine for mold cavity texture engraving proposed by the present invention;

[0041] Fig.10 This is a schematic structural diagram of a sleeve, a first annular cover, a second annular cover, and an air inlet pipe in a laser engraving machine for mold cavity texture engraving processing proposed by the present invention;

[0042] Fig.11 This is a schematic diagram of the structure of an exhaust pipe, an air collecting hood and a transverse pipe in a laser engraving machine for mold cavity texture engraving processing proposed by the present invention;

[0043] Fig.12 A schematic diagram of the structure of a laser engraving machine for engraving textures in a mold cavity proposed by the present invention when the transmission mechanism drives the sleeve to tilt Figure 1 ;

[0044] Fig.13 A schematic diagram of the structure of a laser engraving machine for engraving textures in a mold cavity proposed by the present invention when the transmission mechanism drives the sleeve to tilt Figure 2 ;

[0045] Fig.14 A schematic diagram of the structure of a laser engraving machine for engraving textures in a mold cavity proposed by the present invention when the transmission mechanism drives the sleeve to tilt Figure 3 .

[0046] The meanings of the various reference numerals in the figures are as follows.

[0047] 1. Chassis; 2. Cover; 3. Exhaust fan; 4. Negative pressure pipe; 5. Air guide plate; 6. Carrier; 7. Partition; 8. Y-axis moving module; 9. X-axis moving module; 10. Back plate; 11. Frame; 12. Wind hood; 13. Casing; 14. Sleeve; 15. Laser module; 16. Fixing plate; 17. Second motor; 18. Synchronous belt; 19. Spindle; 20. First motor; 21. Worm gear; 22. Worm Rod; 23, synchronous wheel; 24, liquid inlet pipe; 25, liquid return pipe; 26, air inlet pipe; 27, first annular cover; 28, fixed ring; 29, recessed portion; 30, second annular cover; 31, exhaust passage; 32, annular pipe; 33, lower recessed portion; 34, spiral pipe; 35, slide groove; 36, electric push rod; 37, slide rail; 38, annular groove; 39, through hole; 40, exhaust pipe; 41, nozzle; 42, horizontal pipe. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] 1. A laser engraving machine for mold cavity texture engraving processing, comprising a chassis 1, wherein an X-axis moving module 9, a Y-axis moving module 8, a laser module 15 and a fixed plate 16 are arranged in the chassis 1, characterized in that: the fixed plate 16 is installed on the base of the Y-axis moving module 8, a back plate 10 is arranged on one side of the fixed plate 16, one side of the back plate 10 is rotatably connected to a frame 11 through a transmission mechanism, an installation port is opened at one end of the frame 11, a sleeve 14 is rotatably connected in the installation port through an adjusting component, a fixing mechanism is installed in the sleeve 14, the fixing mechanism is used to install the laser module 15, and the laser module 15 can be cooled.

[0050] An opening is provided on one side of the chassis 1 , and a cover plate 2 is hingedly connected to the opening via a hinge, and a filter is installed on the cover plate 2 .

[0051] A partition 7 is connected inside the chassis 1, and a carrier 6 is connected to the upper end of the partition 7. Wind guide plates 5 are connected to the four corners of the partition 7. An air inlet is provided on the side wall of the wind guide plate 5. A sealing portion is provided on the upper end of the wind guide plate 5. A negative pressure pipe 4 is connected to one side of the chassis 1, and an exhaust fan 3 is connected to one side of the chassis 1.

[0052] A rectangular opening is provided on the side wall of the fixed plate 16, and an electric push rod 36 is connected inside the rectangular opening. The output end of the electric push rod 36 passes through one side of the rectangular opening and is connected to a connecting block. The connecting block is connected to the lower end of the back plate 10. Slide rails 37 are connected to the opposite side edges of the back plate 10. Slide grooves 35 are provided on the opposite sides of the fixed plate 16, and the slide grooves 35 cooperate with the slide rails 37.

[0053] 2. The fixing mechanism includes a sleeve 13, two annular tubes 32 are connected inside the sleeve 13, a plurality of spiral tubes 34 are commonly connected between the two annular tubes 32, and the spiral tubes 34 communicate with the two annular tubes 32, the laser module 15 is installed inside the two annular tubes 32, and the plurality of spiral tubes 34 are all wound around the side wall of the laser module 15, wherein an exhaust passage 31 is formed between two adjacent spiral tubes 34;

[0054] A liquid inlet pipe 24 is connected to the wall of one of the annular tubes 32, and a liquid return pipe 25 is connected to the wall of the other annular tube 32. One end of the liquid return pipe 25 passes through the side wall of the sleeve 13. Two fixing rings 28 are connected to the wall of the sleeve 13, and the two fixing rings 28 are respectively located at the upper and lower ends of the sleeve 14.

[0055] Two annular grooves 38 are provided on the tube wall of the sleeve 13, and a plurality of evenly distributed through holes 39 are opened at the bottom of the two annular grooves 38. The first annular cover 27 is connected to the notch of one of the annular grooves 38, and the second annular cover 30 is connected to the notch of the other annular groove 38. An air inlet pipe 26 is connected to the side wall of the first annular cover 27, and two exhaust pipes 40 are fixedly and symmetrically connected to the side wall of the second annular cover 30.

[0056] The outer edge of the lower end of the sleeve 13 is connected to the wind collecting hood 12, and a plurality of evenly distributed negative pressure holes are opened at the corners of the wind collecting hood 12. An exhaust port is arranged at one end of the wind collecting hood 12, and two horizontal pipes 42 are connected to the exhaust port. The exhaust pipe 40 extends into the wind collecting hood 12 and is connected to a nozzle 41, and the nozzle 41 is coaxially arranged in the horizontal pipe 42.

[0057] A recessed portion 29 is provided on the tube wall of the sleeve 13, and the recessed portion 29 forms an annular protrusion inside the sleeve 13, and the annular protrusion forms a flow limiting portion in the exhaust passage 31. A lower recessed portion 33 is provided on the tube wall of the spiral tube 34, and the lower recessed portion 33 forms a spoiler on the inner side of the spiral tube 34.

[0058] 3. The adjustment component includes a bracket, which is installed on one side of the frame 11. A first motor 20 is connected to one side of the frame 11. A worm 22 is connected to the output end of the first motor 20. A worm wheel 21 is meshed on one side of the worm 22. Two rotating shafts are symmetrically connected to the side wall of the sleeve 14. Both rotating shafts are rotatably connected to the side wall of the frame 11 through ball bearings. One end of one of the rotating shafts passes through the ball bearing and is coaxially connected to one side of the worm wheel 21.

[0059] 4. The transmission mechanism includes a mounting frame, which is installed on one side of the back plate 10. The upper end of the mounting frame is connected to the second motor 17. The side wall of the mounting frame is rotatably connected to the main shaft 19 through a rolling bearing. The lower end of the main shaft 19 is connected to the upper end of the frame 11. A synchronous belt 18 is sleeved on the shaft wall of the main shaft 19. Two synchronous wheels 23 are sleeved in the synchronous belt 18, one of which is installed on the shaft wall of the main shaft 19, and the other synchronous wheel 23 is coaxially installed at the output end of the second motor 17.

[0060] First embodiment

[0061] See attached Figure 1-14 ,

[0062] A laser engraving machine for mold cavity texture engraving processing comprises a chassis 1, wherein an X-axis moving module 9, a Y-axis moving module 8, a laser module 15 and a fixed plate 16 are arranged in the chassis 1, wherein the fixed plate 16 is mounted on the base of the Y-axis moving module 8, a back plate 10 is arranged on one side of the fixed plate 16, a rectangular opening is provided on the side wall of the fixed plate 16, an electric push rod 36 is connected in the rectangular opening, an output end of the electric push rod 36 passes through one side of the rectangular opening and is connected to a connecting block, the connecting block is connected to the lower end of the back plate 10, slide rails 37 are connected at the opposite side edges of the back plate 10, slide grooves 35 are provided on the opposite sides of the fixed plate 16, the slide grooves 35 cooperate with the slide rails 37, one side of the back plate 10 is rotatably connected to a frame 11 through a transmission mechanism, one end of the frame 11 is provided with a mounting opening, and a sleeve 14 is rotatably connected in the mounting opening through an adjusting component.

[0063] The adjustment component includes a bracket, which is installed on one side of the frame 11. A first motor 20 is connected to one side of the frame 11. A worm 22 is connected to the output end of the first motor 20. A worm wheel 21 is meshed on one side of the worm 22. Two rotating shafts are symmetrically connected to the side wall of the sleeve 14. Both rotating shafts are rotatably connected to the side wall of the frame 11 through ball bearings. One end of one of the rotating shafts passes through the ball bearing and is coaxially connected to one side of the worm wheel 21. A fixing mechanism is installed in the sleeve 14. The fixing mechanism is used to install the laser module 15 and can cool the laser module 15.

[0064] An opening is provided on one side of the chassis 1, and a cover plate 2 is hinged at the opening, a filter is installed on the cover plate 2, a partition plate 7 is connected to the inside of the chassis 1, the upper end of the partition plate 7 is connected to a carrier 6, the four corners of the partition plate 7 are connected to air guide plates 5, the side wall of the air guide plate 5 is provided with an air inlet, the upper end of the air guide plate 5 is provided with a sealing portion, a negative pressure pipe 4 is connected to one side of the chassis 1, and an exhaust fan 3 is connected to one side of the chassis 1.

[0065] When the present invention is in use, the X-axis moving module 9 and the Y-axis moving module 8 installed in the chassis 1 can generate displacement in the horizontal and vertical directions to adjust the position of the laser module 15 to perform texture engraving in the mold cavity.

[0066] In addition, the laser module 15 is installed in the sleeve 14. When its tilt angle needs to be changed, the first motor 20 is started to drive the worm 22 to rotate the worm wheel 21. The rotation of the worm wheel 21 drives the rotating shaft to swing the sleeve 14. When the sleeve 14 swings, it can drive the laser module 15 installed in the sleeve 13 through the fixing mechanism to swing, so that the laser module 15 can swing within a small range, so that the laser beam generated by the laser module 15 can be tilted to irradiate the mold cavity for texture engraving.

[0067] In addition, by starting the electric push rod 36 to drive the connecting block to move the back plate 10, the back plate 10 can slide on the mounting plate 16 through the cooperation of the slide rail 37 and the slide groove 35, and then the back plate 10 can drive the fixing mechanism to move the laser module 15 in the vertical direction, so that the laser module 15 can be suitable for engraving textures in cavities of different depths.

[0068] When the laser engraving machine is working, a lot of smoke will be generated. Use a pipe to connect the air inlet end of the exhaust fan 3 to the negative pressure pipe 4, so that the air in the chassis 1 can be extracted to discharge the smoke. At the same time, the external gas enters the chassis 1 from the filter on the cover plate 2, and the airflow carries the smoke from the air inlet on the air guide plate 5 to the bottom of the partition 7, and then is discharged from the negative pressure pipe 4 by the exhaust fan 3.

[0069] Second embodiment

[0070] The differences from the first embodiment are as follows:

[0071] See attached Figure 6-10 ,

[0072] The fixing mechanism includes a sleeve 13, two annular tubes 32 are connected inside the sleeve 13, a plurality of spiral tubes 34 are commonly connected between the two annular tubes 32, and the spiral tubes 34 connect the two annular tubes 32, the laser module 15 is installed in the two annular tubes 32, and the plurality of spiral tubes 34 are all wound around the side wall of the laser module 15, wherein an exhaust passage 31 is formed between two adjacent spiral tubes 34.

[0073] A liquid inlet pipe 24 is connected to the wall of one of the annular tubes 32, and a liquid return pipe 25 is connected to the wall of the other annular tube 32. One end of the liquid return pipe 25 passes through the side wall of the sleeve 13. Two fixing rings 28 are connected to the wall of the sleeve 13, and the two fixing rings 28 are respectively located at the upper and lower ends of the sleeve 14.

[0074] Two annular grooves 38 are provided on the tube wall of the sleeve 13, and a plurality of evenly distributed through holes 39 are opened at the bottom of the two annular grooves 38. The first annular cover 27 is connected to the notch of one annular groove 38, and the second annular cover 30 is connected to the notch of the other annular groove 38. An air inlet pipe 26 is connected to the side wall of the first annular cover 27, and two exhaust pipes 40 are fixedly and symmetrically connected to the side wall of the second annular cover 30.

[0075] The outer edge of the lower end of the sleeve 13 is connected to the wind collecting hood 12, and a plurality of evenly distributed negative pressure holes are opened at the corners of the wind collecting hood 12. An exhaust port is arranged at one end of the wind collecting hood 12, and two horizontal pipes 42 are connected to the exhaust port. The exhaust pipe 40 extends into the wind collecting hood 12 and is connected to a nozzle 41, and the nozzle 41 is coaxially arranged in the horizontal pipe 42.

[0076] A recessed portion 29 is provided on the tube wall of the sleeve 13, and the recessed portion 29 forms an annular protrusion inside the sleeve 13, and the annular protrusion forms a flow limiting portion in the exhaust passage 31. A lower recessed portion 33 is provided on the tube wall of the spiral tube 34, and the lower recessed portion 33 forms a spoiler on the inner side of the spiral tube 34.

[0077] The fixing mechanism provided in the present invention, when in use, inputs coolant into the liquid inlet pipe 24 through the water pump built into the coolant tank (using a hose), the coolant enters the upper annular tube 32 and enters the lower annular tube 32 from the multiple spiral tubes 34, and the coolant flows back to the coolant tank from the return pipe 25, thus forming a circulating cooling flow path, at which time liquid cooling can be used to reduce the temperature generated when the laser module 15 is working.

[0078] In addition, compressed gas is sent into the first annular cover 27 through the air inlet pipe 26. At this time, the compressed gas passes through the through hole 39 and enters the exhaust channel 31. Under the structural restriction of the spiral tube 34, when the compressed gas passes through the exhaust channel 31 with a spiral structure, it can cool down the laser module 15 and the coolant in the spiral tube 34.

[0079] The compressed gas enters the second annular cover 30 from the through hole 39, and is finally ejected through the nozzle 41 on the exhaust pipe 40 to form a high-speed airflow in the transverse pipe 42. When the airflow is discharged, a pressure difference is formed at both ends of the transverse pipe 42, so that the end of the transverse pipe 42 that generates negative pressure suction can extract the smoke floating near the laser module 15 from the negative pressure hole on the wind collecting cover 12, and the adsorbed smoke is discharged through the exhaust port to prevent the smoke from floating near the laser module 15 and affecting the light irradiation.

[0080] Third embodiment

[0081] The differences from the first embodiment are as follows:

[0082] See attached Figure 4-5 ,

[0083] The transmission mechanism includes a mounting frame, which is installed on one side of the back plate 10. The upper end of the mounting frame is connected to the second motor 17. The side wall of the mounting frame is rotatably connected to the main shaft 19 through a rolling bearing. The lower end of the main shaft 19 is connected to the upper end of the frame 11. A synchronous belt 18 is sleeved on the shaft wall of the main shaft 19. Two synchronous wheels 23 are sleeved in the synchronous belt 18, one of which is installed on the shaft wall of the main shaft 19, and the other synchronous wheel 23 is coaxially installed at the output end of the second motor 17.

[0084] The transmission mechanism provided in the present invention, when in use, starts the second motor 17 to rotate the synchronous wheel 23 and drives the synchronous belt 18 to rotate another synchronous wheel 23. At this time, the synchronous wheel 23 drives the main shaft 19 to rotate the frame 11. When the frame 11 rotates, it drives the fixing mechanism to make the laser module 15 do a circular motion around the main shaft 19.

[0085] See attached Figure 12-14 ,

[0086] When the adjustment component drives the laser module 15 to tilt, the transmission mechanism can drive the laser module 15 to perform circular motion in a tilted posture, which can effectively adapt to the concave and convex surface in the mold cavity and improve the working efficiency of the laser engraving machine.

[0087] In summary, the laser engraving machine for mold cavity texture engraving can adjust the overall swing of the laser module to an inclined posture in the mold cavity, thereby improving the efficiency of texture engraving processing, and can also efficiently control the temperature of the laser module to put it in a reasonable working environment.

[0088] It should be noted that the term "comprises" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article, or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0089] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0090] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implying the number of technical features indicated. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0091] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0092] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser engraving machine for mold cavity texture engraving, comprising a chassis (1), wherein an X-axis moving module (9), a Y-axis moving module (8), a laser module (15) and a fixed plate (16) are arranged in the chassis (1), characterized in that: The fixing plate (16) is mounted on a base of the Y-axis moving module (8); a back plate (10) is provided on one side of the fixing plate (16); a frame (11) is rotatably connected to one side of the back plate (10) via a transmission mechanism; a mounting opening is provided at one end of the frame (11); a sleeve (14) is rotatably connected to the mounting opening via an adjustment component; a fixing mechanism is installed in the sleeve (14); the fixing mechanism is used to mount a laser module (15) and can cool the laser module (15); An opening is provided on one side of the chassis (1), and a cover plate (2) is hingedly connected to the opening via a hinge, and a filter is installed on the cover plate (2); The fixing mechanism comprises a sleeve (13), two annular tubes (32) are connected inside the sleeve (13), a plurality of spiral tubes (34) are commonly connected between the two annular tubes (32), and the spiral tubes (34) communicate with the two annular tubes (32), the laser module (15) is installed inside the two annular tubes (32), the plurality of spiral tubes (34) are all wound around the side wall of the laser module (15), and an exhaust passage (31) is formed between two adjacent spiral tubes (34); A liquid inlet pipe (24) is connected to the tube wall of one of the annular tubes (32), and a liquid return pipe (25) is connected to the tube wall of the other annular tube (32). One end of the liquid return pipe (25) passes through the side wall of the sleeve (13). Two fixing rings (28) are connected to the tube wall of the sleeve (13). The two fixing rings (28) are respectively located at the upper and lower ends of the sleeve (14).

2. A laser engraving machine for mold cavity texture engraving according to claim 1, characterized in that: Two annular grooves (38) are arranged on the tube wall of the sleeve (13), and a plurality of evenly distributed through holes (39) are opened at the bottom of the two annular grooves (38), a first annular cover (27) is connected to the notch of one of the annular grooves (38), and a second annular cover (30) is connected to the notch of the other annular groove (38), an air inlet pipe (26) is connected to the side wall of the first annular cover (27), and two exhaust pipes (40) are fixedly and symmetrically connected to the side wall of the second annular cover (30).

3. A laser engraving machine for mold cavity texture engraving according to claim 2, characterized in that: The outer edge of the lower end of the sleeve (13) is connected to a wind collecting hood (12), and a plurality of evenly distributed negative pressure holes are provided at the corners of the wind collecting hood (12). An exhaust port is provided at one end of the wind collecting hood (12), and two transverse pipes (42) are connected to the exhaust port. The exhaust pipe (40) extends into the wind collecting hood (12) and is connected to a nozzle (41), and the nozzle (41) is coaxially arranged in the transverse pipe (42).

4. The laser engraving machine for mold cavity texture engraving according to claim 1, characterized in that: The adjustment assembly comprises a bracket, the bracket is mounted on one side of a frame (11), one side of the frame (11) is connected to a first motor (20), an output end of the first motor (20) is connected to a worm (22), one side of the worm (22) is meshed with a worm wheel (21), the side wall of the sleeve (14) is symmetrically connected to two rotating shafts, both of the two rotating shafts are rotatably connected to the side wall of the frame (11) via ball bearings, one end of one of the rotating shafts passes through the ball bearing and is coaxially connected to one side of the worm wheel (21).

5. The laser engraving machine for mold cavity texture engraving according to claim 1, characterized in that: The transmission mechanism comprises a mounting frame, the mounting frame is mounted on one side of the back plate (10), the upper end of the mounting frame is connected to a second motor (17), the side wall of the mounting frame is rotatably connected to a main shaft (19) via a rolling bearing, the lower end of the main shaft (19) is connected to the upper end of the frame (11), a synchronous belt (18) is sleeved on the shaft wall of the main shaft (19), two synchronous wheels (23) are sleeved in the synchronous belt (18), one of the synchronous wheels (23) is mounted on the shaft wall of the main shaft (19), and the other synchronous wheel (23) is coaxially mounted on the output end of the second motor (17).

6. The laser engraving machine for mold cavity texture engraving according to claim 1, characterized in that: The tube wall of the sleeve (13) is provided with a recessed portion (29), the recessed portion (29) forms an annular protrusion in the sleeve (13), and the annular protrusion forms a flow limiting portion in the exhaust passage (31); the tube wall of the spiral tube (34) is provided with a lower recessed portion (33), and the lower recessed portion (33) forms a flow spoiler on the inner side of the spiral tube (34).

7. The laser engraving machine for mold cavity texture engraving according to claim 1, characterized in that: A rectangular opening is provided on the side wall of the fixed plate (16), an electric push rod (36) is connected inside the rectangular opening, an output end of the electric push rod (36) passes through one side of the rectangular opening and is connected to a connecting block, the connecting block is connected to the lower end of the back plate (10), and the opposite side edges of the back plate (10) are connected to slide rails (37), and the opposite sides of the fixed plate (16) are provided with slide grooves (35), and the slide grooves (35) cooperate with the slide rails (37).

8. The laser engraving machine for mold cavity texture engraving according to claim 1, characterized in that: The chassis (1) is connected to a partition (7), the upper end of the partition (7) is connected to a carrier (6), the four corners of the partition (7) are connected to air guide plates (5), the side wall of the air guide plate (5) is provided with an air inlet, the upper end of the air guide plate (5) is provided with a sealing portion, one side of the chassis (1) is connected to a negative pressure pipe (4), and one side of the chassis (1) is connected to an exhaust fan (3).

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