Full-automatic laser etching machine

Abstract

The utility model aims at providing a kind of full-automatic laser etching machine, it includes machine table, feeding assembly and stacking assembly, at least one laser is provided on machine table, feeding assembly includes feeding belt and several material carrying fixtures, feeding belt is rotationally arranged on machine table, each material carrying fixture is spaced apart and arranged on feeding belt, feeding belt is used to drive each material carrying fixture to circulate through each laser, stacking assembly includes two stacking devices and two transfer driving members, two stacking devices are all arranged on machine table, and two stacking devices are respectively located at the two ends of feeding belt, one transfer driving member is respectively arranged between feeding belt and two stacking devices, one of the transfer driving member is used to transfer workpiece from one of the stacking devices to the material carrying fixture of feeding belt, and the other transfer driving member is used to transfer workpiece from the material carrying fixture of feeding belt to the other stacking device.

Description

Technical Field

[0001] This utility model relates to the technical field of laser engraving equipment, and in particular to a fully automatic laser engraving machine. Background Technology

[0002] Laser engraving, also known as laser carving or laser marking, is a technology that uses a high-energy-density laser beam to carve, cut, and mark materials. Specifically, it uses a high-intensity focused laser beam emitted by a laser to rapidly melt, evaporate, or chemically react the surface of a material. This process exposes deeper materials through changes in the surface material or causes chemical and physical changes in the surface material to form traces, thereby creating patterns or text.

[0003] Most laser engraving machines currently in use are manually loaded and unloaded. Specifically, a fixture for fixing the workpiece is installed at the corresponding position of the laser on the laser engraving machine. The worker places the workpiece on the fixture for fixation, then starts the laser to engrave the workpiece. After the laser engraving is completed, the worker manually removes the workpiece from the fixture.

[0004] However, this manual loading and unloading method severely restricts the efficiency of laser engraving on workpieces, and there are certain safety hazards for workers when manually loading and unloading, as their hands are easily burned when passing over the laser. Therefore, in order to solve the above-mentioned shortcomings, the fully automatic laser engraving machine of this application is proposed. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a fully automatic laser engraving machine that realizes automatic loading and unloading and effectively improves laser engraving efficiency.

[0006] The objective of this utility model is achieved through the following technical solution: A fully automatic laser engraving machine includes: A machine platform, wherein at least one laser is provided on the machine platform; A feeding assembly includes a feeding belt and several material carrier fixtures. The feeding belt is rotatably mounted on the machine base, and each of the material carrier fixtures is spaced apart on the feeding belt. The feeding belt is used to drive each of the material carrier fixtures to circulate through each of the lasers. A stacking assembly includes two stacking devices and two transfer drives. The two stacking devices are both mounted on the machine base and are located at opposite ends of the feed belt. A transfer drive is provided between the feed belt and the two stacking devices. One of the transfer drives is used to transfer a workpiece from one of the stacking devices to a loading fixture on the feed belt, and the other transfer drive is used to transfer a workpiece from the loading fixture on the feed belt to the other stacking device.

[0007] Optionally, the feeding assembly further includes two tilting components, both of which are disposed on the machine platform and located at both ends of the feeding belt.

[0008] Optionally, the material-turning component includes a transverse drive unit, a longitudinal drive unit, a rotary drive unit, and a suction block. The transverse drive unit is disposed on the machine base, and the longitudinal drive unit is disposed on the output shaft of the transverse drive unit. The transverse drive unit is used to drive the longitudinal drive unit to move closer to or away from the feed belt. The rotary drive unit is disposed on the output shaft of the longitudinal drive unit and is used to drive the rotary drive unit to perform lifting and lowering movements. The suction block is disposed on the output shaft of the rotary drive unit and is used to drive the suction block to reciprocate and rotate 180°.

[0009] Optionally, the suction block is provided with a plurality of suction holes.

[0010] Optionally, the material carrier fixture has a material loading hole, and a locking block is slidably disposed inside the material carrier fixture. The locking block is used to extend into the material loading hole to clamp the workpiece.

[0011] Optionally, the suction block is further provided with a top holding block, which, when the suction block approaches the loading fixture, causes the top holding block to move the clamping block away from the loading hole to release the workpiece.

[0012] Optionally, the stacking device includes a stacking frame and two stacking drive components. The stacking frame is disposed on the machine base, and two stacking zones are provided in the stacking frame at intervals. The two stacking drive components are respectively disposed in the two stacking zones. Both stacking drive components are used to support the stacked trays. A carrying belt is rotatably disposed on the inner walls on both sides of one of the stacking zones of the stacking frame. The carrying belt is used to drive the tray to move unidirectionally on the two stacking drive components.

[0013] Optionally, the stacking rack is further provided with two material support components, which are located on the outer walls of the stacking rack on both sides near the bearing belt. The two material support components are used to jointly support the stacked material trays.

[0014] Optionally, the material support component includes a material support cylinder and a support plate. The material support cylinder is disposed on the stacking frame, and the support plate is disposed on the output shaft of the material support cylinder. The material support cylinder is used to drive the support plate to extend into the stacking area so that the support plate supports the material tray.

[0015] Optionally, the transfer drive includes a robotic arm and a clamping claw. The robotic arm is mounted on the machine platform, and the clamping claw is mounted on the output shaft of the robotic arm. The robotic arm is used to drive the clamping claw to move back and forth between the stacking device and the loading fixture.

[0016] Compared with the prior art, the present invention has at least the following advantages: This utility model discloses a fully automatic laser engraving machine, comprising a machine base, a feeding assembly, and a stacking assembly. At least one laser is mounted on the machine base. The feeding assembly includes a feeding belt and several material-carrying fixtures. The feeding belt is rotatably mounted on the machine base, and the material-carrying fixtures are spaced apart on the feeding belt. The feeding belt drives the material-carrying fixtures to circulate through each laser. The stacking assembly includes two stacking devices and two transfer drives. Both stacking devices are mounted on the machine base and located at opposite ends of the feeding belt. A transfer drive is positioned between the feeding belt and each of the two stacking devices. One transfer drive is used to transfer the workpiece from one of the stacking devices to the material-carrying fixture on the feeding belt, and the other transfer drive is used to transfer the workpiece from the material-carrying fixture on the feeding belt to the other stacking device. In this way, the workpiece to be laser-engraved is transferred from one of the stacking devices to the material carrier fixture on the feeding belt by one of the transfer drive components. The feeding belt then drives the material carrier fixture through the laser, allowing the laser to engrave the workpiece. After the workpiece is laser-engraved, another transfer drive component transfers the laser-engraved workpiece from the material carrier fixture to another stacking device for unloading. This achieves automatic feeding, laser engraving, and unloading, replacing the manual feeding and unloading method used in the prior art, thereby improving the laser engraving efficiency of the workpiece. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a fully automatic laser engraving machine according to one embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the flipping component according to one embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of a material-carrying fixture according to one embodiment of the present invention; Figure 4 This is a cross-sectional schematic diagram of the suction block and the loading fixture according to one embodiment of the present invention; Figure 5This is a schematic diagram of the structure of a stacking device supporting multiple material trays according to one embodiment of the present invention; Figure 6 for Figure 5 The diagram shows the structure of the stacking device. Figure 7 This is a schematic diagram of the casing according to one embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures: 10. Fully automatic laser engraving machine; 100. Machine base; 200. Feeding assembly; 300. Stacking assembly; 400. Laser; 210. Feeding belt; 220. Material carrier fixture; 310. Stacking device; 320. Transfer drive; 230. Turning component; 231. Horizontal drive; 232. Vertical drive; 233. Rotary drive; 234. Suction block; 2341. Adsorption Hole; 221, loading hole; 240, clamping block; 250, spring; 260, top holding block; 261, first inclined surface; 241, second inclined surface; 311, stacking rack; 312, stacking drive component; 20, material tray; 313, carrying belt; 314, material support component; 3141, material support cylinder; 3142, pallet; 321, robot arm; 322, clamping claw; 500, machine housing. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more comprehensive description will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model.

[0021] like Figure 1 As shown, a fully automatic laser engraving machine 10 includes a machine base 100, a feeding assembly 200, and a stacking assembly 300. At least one laser 400 is mounted on the machine base 100. The feeding assembly 200 includes a feeding belt 210 and several material-carrying fixtures 220. The feeding belt 210 is rotatably mounted on the machine base 100, and the material-carrying fixtures 220 are spaced apart on the feeding belt 210. The feeding belt 210 drives each material-carrying fixture 220 to circulate through each laser 400. The stacking assembly 300 includes two stacking devices 310 and two transfer drives. The moving part 320 and the two stacking devices 310 are both mounted on the machine base 100, and the two stacking devices 310 are located at both ends of the feeding belt 210. A transfer drive 320 is provided between the feeding belt 210 and the two stacking devices 310. One of the transfer drive 320 is used to transfer the workpiece from one of the stacking devices 310 to the loading fixture 220 of the feeding belt 210, and the other transfer drive 320 is used to transfer the workpiece from the loading fixture 220 of the feeding belt 210 to the other stacking device 310.

[0022] It should be noted that the laser 400 is fixedly mounted on the machine base 100 along the conveying direction of the feed belt 210, and the laser emitting lens of the laser 400 is aligned with the material-carrying fixture 220 on the feed belt 210. The laser 400 can be installed as one, two, or three as needed. For ease of explanation, this application uses two lasers 400 as a specific embodiment for illustration. Furthermore, the laser emitting lens of the laser 400 can be mounted vertically downwards above the material-carrying fixture 220, or laterally on one side of the material-carrying fixture 220, so that the laser 400 can laser-engrave the surface of the workpiece within the material-carrying fixture 220, or laser-engrave the side of the workpiece. Furthermore, the feed belt 210 is rotatably mounted on the machine base 100. Specifically, the feed belt 210 can be a closed belt as in the prior art, or a chain belt as commonly used in the prior art. Each material-carrying fixture 220 is fixedly mounted on the outer wall of the feed belt 210 by screws at equal intervals. The feed belt 210 is rotatably mounted on the machine base 100 via rollers or sprockets. By setting a motor to drive the rollers or sprockets to rotate, the feed belt 210 can be driven to rotate at any settable speed. In this way, the feed belt 210 drives each material-carrying fixture 220 to circulate through the laser 400, enabling the laser 400 to laser engrave the workpieces in each material-carrying fixture 220 one by one. Furthermore, two stacking devices 310 are both mounted on the machine base 100, and the two stacking devices 310 are respectively located at both ends of the feed belt 210. It is important to note that, to facilitate the storage and transfer of workpieces to be laser-engraved, a common practice is to design workpiece trays with multiple storage slots within them, allowing workpieces to be placed inside. This allows for the simultaneous transfer and storage of multiple workpieces by moving the entire tray, improving feeding efficiency. Therefore, two stacking devices 310 are used to stack multiple trays. Specifically, the two stacking devices 310 are located at opposite ends of the feed belt 210, and a transfer drive 320 is installed between each stacking device 310 and the feed belt 210. Thus, one stacking device 310 is used to stack multiple trays containing workpieces to be laser-engraved (this is the loading end), and the other stacking device 310 is used to stack multiple trays containing laser-engraved workpieces (this is the unloading end).Thus, the workpiece to be laser-engraved is transferred from one of the stacking devices 310 to the carrying fixture 220 of the feeding belt 210 by one of the transfer drive components 320. The feeding belt 210 then drives the carrying fixture 220 past the laser 400, allowing the laser 400 to laser-engrave the workpiece. After the workpiece is laser-engraved, another transfer drive component 320 transfers the laser-engraved workpiece from the carrying fixture 220 to another stacking device 310 for unloading. This achieves automatic loading, laser engraving, and unloading, replacing the manual loading and unloading method used in the prior art, thereby improving the laser engraving efficiency of the workpiece.

[0023] like Figure 1 and Figure 2 As shown, in one embodiment, the feeding assembly 200 further includes two tilting components 230, both of which are disposed on the machine base 100 and are located at both ends of the feeding belt 210.

[0024] It should be noted that workpieces are sometimes placed upright and sometimes upside down in the tray, depending on the needs. For example, workpieces that require upright placement for stability are usually placed upright, while workpieces that cannot be stabilized upright and require inversion for stability are usually placed upside down in the tray. However, for workpieces placed upside down in the tray, once the laser-engraved surface is facing up, the workpiece needs to be removed from the tray, flipped once so that the front side is facing up, and after laser engraving, it needs to be flipped a second time so that the front side is facing down again before being placed upside down and transferred to the tray for storage. Therefore, to solve the problem of workpieces needing to be flipped for successful laser engraving, the technical solution of this embodiment is proposed. Specifically, two flipping components 230 are both mounted on the machine base 100, and the two flipping components 230 are located on one side of each end of the feeding belt 210. Thus, after one of the transfer drive units 320 removes the workpiece from one of the stacking devices 310, it places the workpiece directly onto one of the flipping units 230. The flipping unit 230 then flips the workpiece and places it into the carrying fixture 220. Similarly, after the workpiece is laser-engraved, another flipping unit 230 flips the workpiece, which is currently upright in the carrying fixture 220, and then another transfer drive unit 320 transfers the workpiece from the flipping unit 230 to another stacking device 310.

[0025] like Figure 2As shown, in one embodiment, the material turning component 230 includes a transverse drive unit 231, a longitudinal drive unit 232, a rotary drive unit 233, and a suction block 234. The transverse drive unit 231 is mounted on the machine base 100, and the longitudinal drive unit 232 is mounted on the output shaft of the transverse drive unit 231. The transverse drive unit 231 is used to drive the longitudinal drive unit 232 to move closer to or away from the feed belt 210. The rotary drive unit 233 is mounted on the output shaft of the longitudinal drive unit 232, and the longitudinal drive unit 232 is used to drive the rotary drive unit 233 to perform lifting and lowering movements. The suction block 234 is mounted on the output shaft of the rotary drive unit 233, and the rotary drive unit 233 is used to drive the suction block 234 to reciprocate and rotate 180°.

[0026] It should be noted that, for ease of description, the spatial direction formed by the X, Y, and Z directions is used, where the X, Y, and Z directions are mutually perpendicular. The direction in which the feed belt 210 drives the material-carrying fixture 220 forward is defined as the X direction. The transverse drive unit 231 drives the longitudinal drive unit 232 to move along the Y direction, the longitudinal drive unit 232 drives the rotary drive unit 233 to move along the Z direction, and the rotary drive unit 233 drives the suction block 234 to rotate 180° clockwise or 180° counterclockwise. This allows the suction block 234 to pick up the workpiece, flip it 180°, and place it into the material-carrying fixture 220. In one embodiment, the transverse drive unit 231 and the longitudinal drive unit 232 are both linear motion cylinders, and the rotary drive unit 233 is a tilting cylinder.

[0027] like Figure 2 As shown, in one embodiment, the suction block 234 has a plurality of suction holes 2341.

[0028] Specifically, the adsorption hole 2341 is used to connect with an external vacuum generator, so that the adsorption hole 2341 can form a negative pressure, so that the suction block 234 can adsorb and fix the workpiece.

[0029] like Figure 3 and Figure 4 As shown, in one embodiment, the material carrier 220 has a material carrier hole 221, and a locking block 240 is slidably disposed inside the material carrier 220. The locking block 240 is used to extend into the material carrier hole 221 to clamp the workpiece.

[0030] It should be noted that, in order to ensure the workpiece is stably fixed on the material carrier 220 and to prevent the workpiece from loosening and affecting the laser engraving quality, a material carrier hole 221 is provided on the material carrier 220. After part of the workpiece structure is inserted into the material carrier hole 221, it is further clamped and fixed by the locking block 240 that is slidably installed inside the material carrier 220.

[0031] like Figure 4As shown, in one embodiment, a spring 250 is provided on the end of the locking block 240 away from the loading hole 221. The spring 250 pushes the locking block 240, so that the locking block 240 extends into the loading hole 221 to clamp the workpiece.

[0032] It should be noted that in this embodiment, the spring 250 pushes the locking block 240, thereby causing the locking block 240 to clamp and fix the workpiece.

[0033] like Figure 4 As shown, in one embodiment, the suction block 234 is also provided with a top holding block 260. When the suction block 234 approaches the loading fixture 220, the top holding block 260 drives the locking block 240 away from the loading hole 221 to release the workpiece.

[0034] It should be noted that while the clamping block 240 secures the workpiece in its natural state, a supporting block 260 is installed on the suction block 234 to allow the suction block 234 to smoothly place the workpiece into or remove it from the loading hole 221. For example, in one embodiment, the supporting block 260 has a first inclined surface 261, and the clamping block 240 has a second inclined surface 241. When the supporting block 260 descends vertically, the first inclined surface 261 pushes against the second inclined surface 241, thereby causing the clamping block 240 to push against and compress the spring 250. Simultaneously, the clamping block 240 retracts from the loading hole 221, thus allowing the workpiece to be smoothly placed into or removed from the loading hole 221.

[0035] like Figure 1 , Figure 5 and Figure 6 As shown, in one embodiment, the stacking device 310 includes a stacking frame 311 and two stacking drive members 312. The stacking frame 311 is mounted on the machine base 100. Two stacking areas are provided in the stacking frame 311 at intervals. The two stacking drive members 312 are respectively disposed in the two stacking areas. Both stacking drive members 312 are used to support the stacked trays 20. A carrying belt 313 is rotatably disposed on the inner walls on both sides of one of the stacking areas of the stacking frame 311. The carrying belt 313 is used to drive the trays 20 to move unidirectionally on the two stacking drive members 312.

[0036] It should be noted that the stacking rack 311 is installed on the machine base 100, and two stacking drive units 312 are installed alternately on the stacking rack 311. One stacking drive unit 312 is used to support the full material tray 20, and the other stacking drive unit 312 is used to support the empty material tray 20. Specifically, at the loading end, the full material tray 20 is used to load the workpiece to be laser engraved, and at the unloading end, the full material tray 20 is used to load the workpiece after laser engraving. Specifically, at the loading end, several stacked full material trays 20 are first placed on the stacking drive unit 312 near the carrying belt 313, so that each material tray 20 is transferred one by one to the other stacking drive unit 312 via the carrying belt 313. After the transferred drive unit 320 removes the workpiece to be laser engraved from the material tray 20, the empty material trays 20 are stacked one by one on the stacking drive unit 312. In one embodiment, the stacking drive 312 includes an electric cylinder and a lifting plate. The electric cylinder is mounted on the stacking rack 311 or the machine base 100, and the lifting plate is mounted on the output shaft of the electric cylinder. The electric cylinder drives the lifting plate to move up and down, and the material trays 20 are stacked on the lifting plate.

[0037] like Figure 1 , Figure 5 and Figure 6 As shown, in one embodiment, the stacking rack 311 is also provided with two material support members 314. The two material support members 314 are located on the outer walls of the stacking rack 311 on both sides near the bearing belt 313. The two material support members 314 are used to jointly support the stacked material trays 20.

[0038] Specifically, the two stacking devices 310 and the transfer drive 320 are defined as the loading end and the unloading end, respectively. At the loading end, two material support members 314 jointly support several stacked trays 20. For ease of description, the stacking drive 312 located on the carrying belt 313 is defined as the first drive member, and the other stacking drive 312 is defined as the second drive member. After the first drive unit lifts each stacked tray 20 away from the support member 314, the two support members 314 retract from the stacking area. The first drive unit then lowers each stacked tray 20 until the second tray 20 from the bottom up is aligned with the support member 314. The support member 314 then extends back into the stacking area to support the second and subsequent trays 20. The first drive unit continues to lower the bottom tray 20 until it is supported by the carrier belt 313. The first drive unit then detaches from the tray 20, and the carrier belt 313 transfers the tray 20 to the second drive unit. After all the workpieces in the tray 20 transferred to the second drive unit are removed, the second drive unit lowers the empty tray 20 by the thickness of one tray. The new bottom tray 20, located at the position of the first drive unit, is then transferred to the second drive unit by the carrier belt 313 for stacking. Thus, the bottom trays 20 of the first driving member are stacked one by one on the top of the second driving member, so that the workpieces to be laser-engraved can be continuously transferred one by one by the transfer driving member 320 into the material carrier fixture 220. Similarly, at the unloading end, the empty stacked trays 20 are supported by two material support members 314, so that the empty trays 20 are transferred one by one from the bottom of the first driving member and stacked on the top of the second driving member, so that the laser-engraved workpieces are finally transferred by the transfer driving member 320 and placed in the empty trays 20. Finally, the trays 20 filled with laser-engraved workpieces are stacked on the second driving member at the unloading end.

[0039] like Figure 5 and Figure 6 As shown, in one embodiment, the material support component 314 includes a material support cylinder 3141 and a support plate 3142. The material support cylinder 3141 is disposed on the stacking frame 311, and the support plate 3142 is disposed on the output shaft of the material support cylinder 3141. When the material support cylinder 3141 drives the support plate 3142 to extend into the stacking area, the support plate 3142 supports the material tray 20.

[0040] It should be noted that a raised edge is provided on the outer wall of the material tray 20. When the material support cylinder 3141 drives the support plate 3142 to extend into the stacking area, the support plate 3142 is located below the raised edge, so that the support plate 3142 can support the material tray 20.

[0041] like Figure 1As shown, in one embodiment, the transfer drive 320 includes a robot arm 321 and a clamping claw 322. The robot arm 321 is mounted on the machine base 100, and the clamping claw 322 is mounted on the output shaft of the robot arm 321. The robot arm 321 is used to drive the clamping claw 322 to move back and forth between the stacking device 310 and the loading fixture 220.

[0042] It should be noted that the robotic arm 321 can be an existing multi-axis robotic arm, which will not be elaborated here. Furthermore, in one embodiment, the gripper 322 is a pneumatic gripper. Thus, the robotic arm 321 can stably pick up and place workpieces by driving the gripper 322.

[0043] like Figure 7 As shown, in one embodiment, a housing 500 is also provided on the machine base 100, and the feeding assembly 200 and the stacking assembly 300 are both located inside the housing 500. In this way, the housing 500 isolates and protects the feeding assembly 200 and the stacking assembly 300, and the transfer drive 320 is disposed on the top of the housing 500.

[0044] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the utility model patent. Unless otherwise specifically defined, the installation / fixing / setting mentioned in this utility model can be understood as including, but not limited to, locking and fixing with screws / bolts, welding, or bonding with adhesives, wherein the adhesives used can be commercially available finished products. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A fully automatic laser engraving machine, characterized in that, include: A machine platform, wherein at least one laser is provided on the machine platform; A feeding assembly includes a feeding belt and several material carrier fixtures. The feeding belt is rotatably mounted on the machine base, and each of the material carrier fixtures is spaced apart on the feeding belt. The feeding belt is used to drive each of the material carrier fixtures to circulate through each of the lasers. A stacking assembly includes two stacking devices and two transfer drives. The two stacking devices are both mounted on the machine base and are located at opposite ends of the feed belt. A transfer drive is provided between the feed belt and the two stacking devices. One of the transfer drives is used to transfer a workpiece from one of the stacking devices to a loading fixture on the feed belt, and the other transfer drive is used to transfer a workpiece from the loading fixture on the feed belt to the other stacking device.

2. The fully automatic laser engraving machine according to claim 1, characterized in that, The feeding assembly also includes two tilting components, both of which are disposed on the machine platform and located at both ends of the feeding belt.

3. The fully automatic laser engraving machine according to claim 2, characterized in that, The material-turning component includes a transverse drive unit, a longitudinal drive unit, a rotary drive unit, and a suction block. The transverse drive unit is mounted on the machine base, and the longitudinal drive unit is mounted on the output shaft of the transverse drive unit. The transverse drive unit is used to drive the longitudinal drive unit to move closer to or away from the feed belt. The rotary drive unit is mounted on the output shaft of the longitudinal drive unit and is used to drive the rotary drive unit to perform lifting and lowering movements. The suction block is mounted on the output shaft of the rotary drive unit and is used to drive the suction block to reciprocate and rotate 180°.

4. The fully automatic laser engraving machine according to claim 3, characterized in that, The suction block has several suction holes.

5. The fully automatic laser engraving machine according to claim 3, characterized in that, The material carrier fixture has a material loading hole, and a locking block is slidably disposed inside the material carrier fixture. The locking block is used to extend into the material loading hole to clamp the workpiece.

6. The fully automatic laser engraving machine according to claim 5, characterized in that, The suction block is also provided with a top holding block. When the suction block approaches the material loading fixture, the top holding block causes the clamping block to move away from the material loading hole to release the workpiece.

7. The fully automatic laser engraving machine according to claim 1, characterized in that, The stacking device includes a stacking frame and two stacking drive components. The stacking frame is mounted on the machine platform and has two spaced-apart stacking zones. The two stacking drive components are respectively located in the two stacking zones and are used to support the stacked trays. A carrying belt is rotatably mounted on the inner walls of one of the stacking zones of the stacking frame. The carrying belt is used to drive the tray to move unidirectionally on the two stacking drive components.

8. The fully automatic laser engraving machine according to claim 7, characterized in that, The stacking rack is also provided with two material support components. The two material support components are located on the outer walls of the stacking rack on both sides near the bearing belt. The two material support components are used to jointly support the stacked material trays.

9. The fully automatic laser engraving machine according to claim 8, characterized in that, The material support component includes a material support cylinder and a support plate. The material support cylinder is disposed on the stacking frame, and the support plate is disposed on the output shaft of the material support cylinder. The material support cylinder is used to drive the support plate to extend into the stacking area so that the support plate supports the material tray.

10. The fully automatic laser engraving machine according to claim 1, characterized in that, The transfer drive includes a robotic arm and a clamping claw. The robotic arm is mounted on the machine platform, and the clamping claw is mounted on the output shaft of the robotic arm. The robotic arm is used to drive the clamping claw to move back and forth between the stacking device and the loading fixture.

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