Laser marking feeding device

Abstract

The invention relates to a laser marking feeding device which is used for a plurality of materials to be marked, the laser marking feeding device comprises a device body, a laser marking machine, a conveying mechanism and a material blocking structure, and the device body is provided with a machining area and a feeding area; the laser marking machine is installed in the machining area. The conveying mechanism is installed in the machining area and the feeding area and arranged below the laser marking machine, the conveying mechanism is used for conveying the to-be-marked material pieces from the feeding area to the machining area along the horizontal path, and the multiple to-be-marked material pieces are stacked on the conveying mechanism of the feeding area; the material blocking part structure is arranged between the machining area and the feeding area and arranged above the conveying mechanism, the height of the material blocking part structure is larger than the thickness of a plurality of to-be-marked material parts, and the distance between the material blocking part structure and the conveying mechanism is larger than the thickness of one to-be-marked material part and smaller than the thickness of two to-be-marked material parts. The laser marking feeding device has the advantage that the conveying path or the device structure of automatic feeding is simplified.

Description

Technical Field

[0001] The present invention relates to a feeding device for a mechanical process, and in particular to a feeding device for a laser marking process. Background Art

[0002] Laser marking is the process of using lasers to create text, patterns, and other marks on the surface of an object. The principle is to use lasers to carve on the surface of an object. Depending on the power and beam density of the laser, different engraving effects can be produced.

[0003] In addition, the laser marking process usually uses an automatic feeding device to feed the materials to be marked one by one into the bottom of the laser marking machine, and the laser marking machine then performs surface engraving on the materials to be marked. Finally, the objects that have completed the laser marking are removed from the material belt, and the laser marking process is completed.

[0004] However, these automatic feeders, designed to ensure that the materials to be marked are delivered one piece at a time to the bottom of the laser marking machine, often result in excessively long conveyor paths or complex structures. Therefore, simplifying the conveyor path and structure of automatic feeders has become a key research and development focus for automatic feeder manufacturers. Summary of the Invention

[0005] The object of the present invention is to provide a laser marking feeding device, which utilizes the advantages of stacking multiple materials to be marked on a conveying mechanism located in the feeding area, so that only the materials to be marked at the bottom can be driven by the conveying mechanism to pass through the spacing, and the remaining multiple materials to be marked are stopped in the feeding area by the blocking member structure, so that the laser marking feeding device of the present invention has the advantage of simplifying the conveying path or device structure of automatic feeding.

[0006] In an embodiment of the present invention, the present invention provides a laser marking feeding device for a plurality of materials to be marked, the laser marking feeding device comprising: a device body, provided with a processing area and a feeding area arranged on one side of the processing area; a laser marking machine, installed in the processing area; a conveying mechanism, installed in the processing area and the feeding area and arranged below the laser marking machine, the conveying mechanism is used to convey the materials to be marked from the feeding area to the processing area along a horizontal path; and a material blocking member structure, arranged between the processing area and the feeding area and arranged in the Above the conveying mechanism, the height of the material blocking structure is greater than the thickness of the plurality of materials to be marked, and there is a spacing between the material blocking structure and the conveying mechanism that is greater than the thickness of one of the materials to be marked and less than the thickness of two of the materials to be marked; wherein, when the plurality of materials to be marked are stacked on the conveying mechanism located in the feeding area, only the material to be marked at the bottom can be driven by the conveying mechanism and along the horizontal path from the feeding area, through the spacing to the processing area, and the remaining plurality of materials to be marked are stopped in the feeding area by the material blocking structure.

[0007] In some embodiments, the material to be marked has two transverse material belts formed on opposite sides thereof, and the conveying mechanism includes two driving wheels and two driven wheels pivotally connected to the device body and arranged on opposite sides of the processing area and the feeding area, and two crawlers respectively wrapped around the outside of each driving wheel and each driven wheel and rotating with each driving wheel, and the two transverse material belts are placed on the two crawlers.

[0008] In some embodiments, the material blocking structure includes two upright baffles fixed to the device body, the two upright baffles are arranged above the two tracks, the height is the height of each upright baffle, and the spacing is formed between the two tracks and the two upright baffles.

[0009] In some embodiments, three limit plates are further included, and the three limit plates are fixed to the device body. One of the limit plates and the two upright baffles are arranged on two opposite sides of the feed area and the ends extend with an inclined section that gradually inclines upward and outward, and the remaining two limit plates are arranged on the other opposite sides of the feed area.

[0010] In some embodiments, a first lifting baffle module is further included, which is arranged between the two crawlers, the processing area and the feeding area. The first lifting baffle module includes a first baffle and a first actuator fixed to the device body and driving the first baffle to be higher than the two crawlers or lower than the two crawlers. The first baffle and the two upright baffles are located on the same horizontal plane or are arranged on the side of the two upright baffles adjacent to the feeding area.

[0011] In some embodiments, the first lifting baffle module further includes a first position sensor, which is installed on a side of the first actuator adjacent to the feeding area, and is used to sense the material to be marked.

[0012] In some embodiments, the first lifting baffle module further includes at least one second position sensor, the second position sensor being configured corresponding to the first baffle and configured to sense whether the first baffle is above or below the two crawlers.

[0013] In some embodiments, a second lifting baffle module is further included, which is arranged between the two crawlers and on the side of the processing area away from the first lifting baffle module. The second lifting baffle module includes a second baffle and a second actuator fixed to the device body and driving the second baffle to be higher than the two crawlers or lower than the two crawlers.

[0014] In some embodiments, the second lifting block module further includes a third position sensor. The third position sensor is installed on a side of the second actuator adjacent to the processing area. The third position sensor is used to sense the material to be marked.

[0015] In some embodiments, the second lifting baffle module further includes at least one fourth position sensor, the fourth position sensor being configured corresponding to the second baffle and configured to sense whether the second baffle is above or below the two crawlers.

[0016] In some embodiments, the first position sensor generates a first positioning signal when sensing the material to be marked, the third position sensor generates a non-positioning signal when not sensing the material to be marked, the fourth position sensor generates a descending signal when sensing that the second baffle is lower than the two tracks, and the first actuator receives the first positioning signal and the non-positioning signal, or receives the first positioning signal and the descending signal to drive the first baffle below the two tracks.

[0017] In some embodiments, the third position sensor generates a second positioning signal when sensing the material to be marked. The first actuator receives the second positioning signal and drives the first baffle to be higher than the two crawlers. The laser marking machine receives the second positioning signal and performs laser engraving on the material to be marked. The laser marking machine generates a laser completion signal after the laser engraving is completed. The second actuator receives the second positioning signal and the laser completion signal and drives the second baffle to be lower than the two crawlers.

[0018] Based on the above, the laser marking feeding device of the present invention adopts a conveying mechanism to convey the materials to be marked along a horizontal path, and then the height of the material blocking structure is greater than the thickness of the multiple materials to be marked, and there is a spacing between the material blocking structure and the conveying mechanism that is greater than the thickness of one material to be marked and less than the thickness of two materials to be marked. After that, when the multiple materials to be marked are stacked on the conveying mechanism located in the feeding area, only the material to be marked at the bottom can be driven by the conveying mechanism and along the horizontal path from the feeding area, through the spacing to the processing area, and the remaining multiple materials to be marked are stopped in the feeding area by the material blocking structure, so that the materials to be marked can be automatically fed into the processing area one by one, so that the laser marking feeding device of the present invention has the advantage of simplifying the conveying path or device structure of automatic feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the laser marking feeding device of the present invention.

[0020] Figure 2 This is another perspective schematic diagram of the laser marking feeding device of the present invention.

[0021] Figure 3 It is a three-dimensional schematic diagram of the first and second lifting baffle modules of the present invention.

[0022] Figure 4 This is a schematic diagram of the use status of the first and second lifting baffle modules of the present invention.

[0023] Figure 5 This is a cross-sectional view of the laser marking feeding device of the present invention in the first usage state.

[0024] Figure 6 For the present invention Figure 4 A partial enlarged schematic diagram.

[0025] Figure 7 This is a schematic diagram of another usage state of the first and second lifting baffle modules of the present invention.

[0026] Figure 8 This is a cross-sectional view of the laser marking feeding device of the present invention in the second usage state.

[0027] Figure 9 This is a cross-sectional view of the laser marking feeding device of the present invention in the third usage state.

[0028] Figure 10 This is a three-dimensional diagram of the laser marking feeding device of the present invention in a fourth usage state.

[0029] In the picture: 10: Laser marking feeding device; 1: Device body; 11: Processing area; 12: Feeding area; 2: Laser marking machine; 3: Conveying mechanism; 31: Driving wheel; 32: Driven wheel; 33: Track; 4: Material blocking structure; 41: Upright baffle; 5: Limiting plate; 51: Inclined section; 6: First lifting baffle module; 61: First baffle; 611: First notch; 62: First actuator; 63: First position sensor; 64: Second position sensor; 7: Second lifting baffle module; 71: Second baffle; 711: Second notch; 72: Second actuator; 73: Third position sensor; 74: Fourth position sensor; H: Height; S: Spacing; 100: Material to be marked; 101: Horizontal material strip; 102: Vertical material strip; 103: Parts to be laser marked. DETAILED DESCRIPTION

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0031] Please refer to Figures 1 to 10 As shown, the present invention provides a laser marking feeding device. The laser marking feeding device 10 mainly includes a device body 1, a laser marking machine 2, a conveying mechanism 3 and a material blocking structure 4.

[0032] like Figures 1 to 2 、 Figures 5 and 6 、 Figures 8 to 10 As shown, this laser marking feeding device 10 is used for a plurality of materials 100 to be marked, each of which has two transverse material strips 101 formed on opposite sides thereof, a plurality of vertical material strips 102 spanning between the two transverse material strips 101, and a plurality of parts to be laser marked 103 spanning between the plurality of vertical material strips 102.

[0033] like Figures 1 to 2 、 Figures 5 and 6 、 Figures 8 to 10 As shown, the device body 1 is provided with a processing area 11 and a feeding area 12 disposed on one side of the processing area 11 .

[0034] like Figure 2 、 Figure 5 、 Figure 9 As shown, a laser marking machine 2 is installed in the processing area 11 , and the laser marking machine 2 is used to laser engrave the surfaces of a plurality of parts 103 to be laser marked.

[0035] like Figure 2 、 Figures 5 and 6 、 Figures 8 to 10 As shown, the conveying mechanism 3 is installed between the processing area 11 and the feeding area 12 and is disposed below the laser marking machine 2 . The conveying mechanism 3 is used to convey the workpiece 100 to be marked from the feeding area 12 to the processing area 11 along a horizontal path.

[0036] The details are as follows. The conveying mechanism 3 includes two driving wheels 31 and two driven wheels 32 pivotally connected to the device body 1 and disposed on opposite sides of the processing area 11 and the feed area 12, and two crawler belts 33 respectively covering the outside of each driving wheel 31 and each driven wheel 32 and rotating with each driving wheel 31. Specifically, one driving wheel 31, driven wheel 32, and crawler belt 33 are disposed on one side of the feed area 12 and the processing area 11, while the other driving wheel 31, driven wheel 32, and crawler belt 33 are disposed on the other side of the feed area 12 and the processing area 11. Two transverse material belts 101 are placed on the two crawler belts 33, thereby enabling the conveying mechanism 3 to transport the materials 100 to be marked from the feed area 12 to the processing area 11 along a horizontal path. The crawler belt 33 in this embodiment can be a belt or a chain.

[0037] like Figures 1 to 2 、 Figures 5 and 6 、 Figures 8 to 10 As shown, the material blocking member structure 4 is arranged between the processing area 11 and the feeding area 12 and is configured above the conveying mechanism 3. The height H of the material blocking member structure 4 is greater than the sum of the thicknesses of the multiple materials 100 to be marked. There is a spacing S between the material blocking member structure 4 and the conveying mechanism 3 that is greater than the thickness of one material 100 to be marked and less than the thickness of two materials 100 to be marked.

[0038] Further explanation is as follows: the material blocking structure 4 includes two upright baffles 41 fixed to the device body 1, the two upright baffles 41 are arranged above the two tracks 33, the height H is the height of each upright baffle 41, and the spacing S is formed between the two tracks 33 and the two upright baffles 41.

[0039] When a plurality of materials 100 to be marked are stacked on the conveying mechanism 3 located in the feed area 12, only the materials 100 to be marked at the bottom can be driven by the conveying mechanism 3 and along the horizontal path from the feed area 12, through the spacing S to the processing area 11, and the remaining plurality of materials 100 to be marked are stopped in the feed area 12 by the material blocking structure 4.

[0040] like Figures 1 to 2 、 Figure 5 、 Figures 8 to 10 As shown, the laser marking feeding device 10 of the present invention further includes three limit plates 5, which are fixed to the device body 1. One limit plate 5 and two upright baffles 41 are arranged on two opposite sides of one of the feeding area 12 and an inclined section 51 is extended at the end thereof and gradually tilted upward and outward to facilitate stacking of multiple materials 100 to be marked on the conveying mechanism 3 located in the feeding area 12. The remaining two limit plates 5 are arranged on the other opposite sides of the feeding area 12.

[0041] like Figures 2 to 10 As shown, the laser marking feeding device 10 of the present invention further includes a first lifting baffle module 6, which is arranged between the two tracks 33, the processing area 11 and the feeding area 12. The first lifting baffle module 6 includes a first baffle 61 and a first actuator 62 fixed to the device body 1 and driving the first baffle 61 to be higher than the two tracks 33 or lower than the two tracks 33. The first baffle 61 and the two upright baffles 41 are located on the same horizontal plane or are arranged on the side of the two upright baffles 41 adjacent to the feeding area 12.

[0042] In addition, the first lifting baffle module 6 further includes a first position sensor 63 and one or more second position sensors 64. The first position sensor 63 is installed on the side of the first actuator 62 adjacent to the feeding area 12. The first position sensor 63 is used to sense the material 100 to be marked. The second position sensor 64 is configured corresponding to the first baffle 61. The second position sensor 64 is used to sense whether the first baffle 61 is higher than the second track 33 or lower than the second track 33.

[0043] The details are as follows. In this embodiment, the number of the second position sensors 64 is two. The first baffle 61 is provided with a first notch 611. One second position sensor 64 is provided corresponding to the lower edge of the first baffle 61, and the other second position sensor 64 is provided corresponding to the first notch 611 of the first baffle 61. The second position sensor 64 can be an infrared sensor or an ultrasonic sensor. Figure 4As shown, when the first baffle 61 is higher than the two tracks 33, the first baffle 61 is higher than one of the second position sensors 64, so that the infrared rays of one infrared sensor or the ultrasonic waves of the ultrasonic sensor are not blocked and a first protrusion signal is generated. The first baffle 61 blocks the other second position sensor 64, so that the infrared rays of the other infrared sensor or the ultrasonic waves of the ultrasonic sensor are blocked and a second protrusion signal is generated. The processor (not disclosed in the figure) calculates and presets that the first baffle 61 must be higher than the two tracks 33. When the first protrusion signal and the second protrusion signal are received at the same time, no alarm signal will be issued. On the contrary, when the processor calculates and presets that the first baffle 61 must be higher than the two tracks 33, when the first protrusion signal and the second protrusion signal are not received at the same time, an alarm signal will be issued via a whistle (not disclosed in the figure) or a screen (not disclosed in the figure).

[0044] Furthermore, if Figure 7 As shown, when the first baffle 61 is lower than the two tracks 33, the first baffle 61 blocks one of the second position sensors 64, so that the infrared rays of one infrared sensor or the ultrasonic waves of the ultrasonic sensor are blocked, thereby generating a first retraction signal. The other second position sensor 64 is opposite to the first notch 611 of the first baffle 61, so that the infrared rays of the other infrared sensor or the ultrasonic waves of the ultrasonic sensor are not blocked, thereby generating a second retraction signal. The processor (not shown) calculates and presets that the first baffle 61 must be lower than the two tracks 33. When the first retraction signal and the second retraction signal are received at the same time, no alarm signal will be issued. On the contrary, when the processor calculates and presets that the first baffle 61 must be lower than the two tracks 33 and the first retraction signal and the second retraction signal are not received at the same time, an alarm signal will be issued via a whistle (not shown) or a screen (not shown).

[0045] like Figures 2 to 5 、 Figures 7 to 10 As shown, the laser marking feeding device 10 of the present invention further includes a second lifting baffle module 7, which is arranged between the two tracks 33 and on the side of the processing area 11 away from the first lifting baffle module 6. The second lifting baffle module 7 includes a second baffle 71 and a second actuator 72 fixed to the device body 1 and driving the second baffle 71 to be higher than the two tracks 33 or lower than the two tracks 33.

[0046] In addition, the second lifting baffle module 7 further includes a third position sensor 73 and a fourth position sensor 74. The third position sensor 73 is installed on the side of the second actuator 72 adjacent to the processing area 11. The third position sensor 73 is used to sense the material 100 to be marked. The fourth position sensor 74 is configured corresponding to the second baffle 71. The fourth position sensor 74 is used to sense whether the second baffle 71 is higher than the second track 33 or lower than the second track 33.

[0047] The details are as follows. In this embodiment, the number of the fourth position sensors 74 is two. The second baffle 71 is provided with a second notch 711. One of the fourth position sensors 74 is provided corresponding to the lower edge of the second baffle 71, and the other fourth position sensor 74 is provided corresponding to the second notch 711 of the second baffle 71. The fourth position sensor 74 can be an infrared sensor or an ultrasonic sensor. Figure 4 As shown, when the second baffle 71 is higher than the two tracks 33, the second baffle 71 is higher than one of the fourth position sensors 74, so that the infrared rays of one infrared sensor or the ultrasonic waves of the ultrasonic sensor are not blocked and a third protrusion signal is generated. The second baffle 71 blocks the other fourth position sensor 74, so that the infrared rays of the other infrared sensor or the ultrasonic waves of the ultrasonic sensor are blocked and a fourth protrusion signal is generated. The processor calculates and presets that the second baffle 71 needs to be higher than the two tracks 33. When the third protrusion signal and the fourth protrusion signal are received at the same time, no alarm signal will be issued. On the contrary, the processor calculates and presets that the second baffle 71 needs to be higher than the two tracks 33. When the third protrusion signal and the fourth protrusion signal are not received at the same time, an alarm signal will be issued via a whistle or a screen.

[0048] Furthermore, if Figure 7 As shown, when the second baffle 71 is lower than the two tracks 33, the second baffle 71 blocks one of its fourth position sensors 74, so that the infrared rays of one infrared sensor or the ultrasonic waves of the ultrasonic sensor are blocked, thereby generating a third retraction signal. The other fourth position sensor 74 is opposite to the second notch 711 of the second baffle 71, so that the infrared rays of the other infrared sensor or the ultrasonic waves of the ultrasonic sensor are not blocked, thereby generating a fourth retraction signal. The processor calculates and presets that the second baffle 71 must be lower than the two tracks 33. When the third retraction signal and the fourth retraction signal are received at the same time, no alarm signal will be issued. Conversely, when the processor calculates and presets that the second baffle 71 must be lower than the two tracks 33 and the third retraction signal and the fourth retraction signal are not received at the same time, an alarm signal will be issued via a horn or a screen.

[0049] In addition, when the first position sensor 63 senses the material 100 to be marked, it generates a first positioning signal. When the third position sensor 73 does not sense the material 100 to be marked, it generates a non-positioning signal. When the fourth position sensor 74 senses that the second baffle 71 is lower than the two tracks 33, it generates a descending signal. The first actuator 62 receives the first positioning signal and the non-positioning signal, or receives the first positioning signal and the descending signal, it drives the first baffle 61 below the two tracks 33. Except for the above two cases, the first actuator 62 will only drive the first baffle 61 above the two tracks 33.

[0050] In addition, when the third position sensor 73 senses the material 100 to be marked, it will generate a second positioning signal. When the first actuator 62 receives the second positioning signal, it will drive the first baffle 61 to be higher than the second track 33. When the laser marking machine 2 receives the second positioning signal, it will laser engrave the material 100 to be marked. When the laser marking machine 2 completes the laser engraving, it will generate a laser completion signal. When the second actuator 72 receives the second positioning signal and the laser completion signal, it will drive the second baffle 71 to be lower than the second track 33. Except for the above situation, the second actuator 72 will only drive the second baffle 71 to be higher than the two track 33.

[0051] like Figures 5 and 6 、 Figure 8 As shown, the first and second usage states of the laser marking feeding device 10 of the present invention are shown. First, a plurality of materials 100 to be marked are stacked on the conveyor mechanism 3 located in the feeding area 12. When the first position sensor 63 senses the materials 100 to be marked, it generates a first positioning signal. At this time, there are no materials 100 to be marked in the processing area 11, so the third position sensor 73 does not sense the materials 100 to be marked and generates a non-positioning signal. The first actuator 62 receives the first positioning signal and the non-positioning signal and drives the first blocking plate 61 below the two crawlers 33. The two crawlers 33 then rotate along with the driving wheels 31. The material 100 to be marked at the bottom can be driven by the two crawlers 33 along a horizontal path from the feeding area 12, through the spacing S, to the processing area 11. The remaining plurality of materials 100 to be marked are stopped in the feeding area 12 by the blocking structure 4.

[0052] like Figures 9 and 10 As shown in the figure, the third and fourth use states of the laser marking feeding device 10 of the present invention. Finally, after the material 100 to be marked enters the processing area 11, the third position sensor 73 senses the material 100 to be marked and generates a second positioning signal. At the same time, the first actuator 62 receives the second positioning signal and drives the first baffle 61 above the second track 33, thereby preventing another material 100 to be marked from being fed into the processing area 11. The laser marking machine 2 receives the second positioning signal and performs laser engraving on the material 100 to be marked. When the laser engraving is completed, the laser marking machine 2 generates a laser completion signal. The second actuator 72 receives the second positioning signal and the laser completion signal and drives the second baffle 71 below the second track 33, allowing the completed material 100 to be conveyed to the side of the processing area 11 away from the feeding area 12 and to be separated from the second track 33 and to the collection box (not shown).

[0053] In addition, the fourth position sensor 74 senses that the second baffle 71 is lower than the second track 33 and generates a descending signal. The first actuator 62 receives the first positioning signal and the descending signal and drives the first baffle 61 to be lower than the second track 33, so that the other material 100 to be marked at the bottom can be driven by the two tracks 33 and along the horizontal path from the feed area 12 to the processing area 11 through the spacing S. The remaining multiple materials 100 to be marked are stopped in the feed area 12 by the material blocking structure 4. That is, when the completed material 100 to be marked is sent out of the processing area 11, another material 100 to be marked can be sent to the processing area 11, thereby achieving the effect of process automation.

[0054] By this means, the laser marking feeding device 10 of the present invention adopts the conveying mechanism 3 to convey the material 100 to be marked from the feeding area 12 to the processing area 11 along a horizontal path, and then the height H of the blocking member structure 4 is greater than the thickness of the plurality of materials 100 to be marked, and there is a spacing S between the blocking member structure 4 and the conveying mechanism 3 that is greater than the thickness of one material 100 to be marked and less than the thickness of two materials 100 to be marked. After that, when the plurality of materials 100 to be marked are stacked on the conveying mechanism 3 located in the feeding area 12, only the material 100 to be marked at the bottom can be driven by the conveying mechanism 3 and along the horizontal path from the feeding area 12, through the spacing S to the processing area 11, and the remaining plurality of materials 100 to be marked are stopped in the feeding area 12 by the blocking member structure 4, thereby achieving the effect of automatically feeding the materials 100 to be marked into the processing area 11 one by one, so that the laser marking feeding device 10 of the present invention has the advantage of simplifying the conveying path or device structure of automatic feeding.

[0055] The above embodiments are merely preferred embodiments for the purpose of fully illustrating the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are within the scope of protection of the present invention. The scope of protection of the present invention shall be subject to the claims.

Claims

1. A laser marking feeding device for a plurality of materials to be marked, characterized in that: The laser marking feeding device comprises: a device body, provided with a processing area and a feeding area arranged on one side of the processing area; a laser marking machine installed in the processing area; a conveying mechanism installed between the processing area and the feeding area and disposed below the laser marking machine, the conveying mechanism being used to convey the to-be-marked material from the feeding area to the processing area along a horizontal path; and a material stopper structure disposed between the processing area and the feeding area and arranged above the conveying mechanism, wherein the height of the material stopper structure is greater than the thickness of the plurality of materials to be marked, and a spacing between the material stopper structure and the conveying mechanism is greater than the thickness of one of the materials to be marked and less than the thickness of two of the materials to be marked; When the plurality of materials to be marked are stacked on the conveying mechanism located in the feed area, only the materials to be marked at the bottom can be driven by the conveying mechanism and along the horizontal path from the feed area, through the spacing to the processing area, and the remaining plurality of materials to be marked are stopped in the feed area by the blocking structure.

2. The laser marking feeding device according to claim 1, characterized in that: The material to be marked has two transverse material belts formed on opposite sides thereof. The conveying mechanism includes two driving wheels and two driven wheels pivotally connected to the device body and arranged on opposite sides of the processing area and the feeding area, and two crawlers respectively wrapped around the outside of each driving wheel and each driven wheel and rotating with each driving wheel. The two transverse material belts are placed on the two crawlers.

3. The laser marking feeding device according to claim 2, characterized in that: The material blocking structure includes two upright baffles fixed to the device body. The two upright baffles are arranged above the two crawlers. The height is the height of each upright baffle. The spacing is formed between the two crawlers and the two upright baffles.

4. The laser marking feeding device according to claim 3, characterized in that: It further includes three limit plates, which are fixed to the device body. One of the limit plates and the two upright baffles are arranged on two opposite sides of the feed area and have an inclined section extending from the end that gradually inclines upward and outward. The remaining two limit plates are arranged on the other opposite sides of the feed area.

5. The laser marking feeding device according to claim 3, characterized in that: The device further includes a first lifting baffle module, which is arranged between the two crawlers, the processing area and the feeding area. The first lifting baffle module includes a first baffle and a first actuator fixed to the device body and driving the first baffle to be higher than or lower than the two crawlers. The first baffle and the two upright baffles are located on the same horizontal plane or are arranged on the side of the two upright baffles adjacent to the feeding area.

6. The laser marking feeding device according to claim 5, characterized in that: The first lifting baffle module further includes a first position sensor. The first position sensor is installed on a side of the first actuator adjacent to the feeding area. The first position sensor is used to sense the material to be marked.

7. The laser marking feeding device according to claim 5, characterized in that: The first lifting baffle module further includes at least one second position sensor. The second position sensor is configured corresponding to the first baffle and is used to sense whether the first baffle is above or below the two crawlers.

8. The laser marking feeding device according to claim 6, characterized in that: The device further includes a second lifting baffle module, which is arranged between the two crawlers and on a side of the processing area away from the first lifting baffle module. The second lifting baffle module includes a second baffle and a second actuator fixed to the device body and driving the second baffle to be higher than or lower than the two crawlers.

9. The laser marking feeding device according to claim 8, characterized in that: The second lifting baffle module further includes a third position sensor. The third position sensor is installed on a side of the second actuator adjacent to the processing area. The third position sensor is used to sense the material to be marked.

10. The laser marking feeding device according to claim 9, characterized in that: The second lifting baffle module further includes at least one fourth position sensor. The fourth position sensor is configured corresponding to the second baffle and is used to sense whether the second baffle is above or below the two crawlers.

11. The laser marking feeding device according to claim 10, characterized in that: When the first position sensor senses the material to be marked, it generates a first positioning signal. When the third position sensor does not sense the material to be marked, it generates a non-positioning signal. When the fourth position sensor senses that the second baffle is lower than the two tracks, it generates a descending signal. The first actuator receives the first positioning signal and the non-positioning signal, or receives the first positioning signal and the descending signal, and drives the first baffle to be lower than the two tracks.

12. The laser marking feeding device according to claim 11, characterized in that: When the third position sensor senses the material to be marked, it generates a second positioning signal. When the first actuator receives the second positioning signal, it drives the first baffle to be higher than the two crawlers. When the laser marking machine receives the second positioning signal, it laser engraves the material to be marked. When the laser marking machine completes the laser engraving, it generates a laser completion signal. When the second actuator receives the second positioning signal and the laser completion signal, it drives the second baffle to be lower than the two crawlers.

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