An automatic tray feeding device based on a laser cutting platform

Abstract

This invention discloses an automatic tray feeding device based on a laser cutting platform, relating to the field of feeding equipment. It includes a conveyor line and a protective cover fixed to the outside of the conveyor line. Support frames are fixedly mounted at both ends of the conveyor line, and first rotating shafts are rotatably mounted at both ends of the conveyor line. A first synchronous gear is fixedly fitted onto the outer surface of each first rotating shaft. A first synchronous toothed belt is connected between two first synchronous gears. This invention uses a docking component in the feeding unit to pre-prepare multiple trays. When the trays in the tray frame are picked up and reset for replenishment, the pre-assembled trays on the second synchronous toothed belt can be directly inserted into the corresponding mounting slots, thus completing the tray replenishment. When the first synchronous toothed belt moves the tray frame again, the limiting unit confines the trays within the tray frame for synchronous movement, thus completing the automatic tray feeding and replenishment process.

Description

Technical Field

[0001] This invention relates to the field of feeding equipment, specifically to an automatic feeding device for a material tray based on a laser cutting platform. Background Technology

[0002] For small workpieces produced in batches using additive manufacturing or compression molding, the burrs on their surfaces need to be trimmed in batches using laser cutting equipment. A first robotic arm places the trays carrying the batch of workpieces sequentially onto a rotatable platform. The platform rotates intermittently, bringing the trays one by one closer to the laser cutting equipment. Then, a second robotic arm transfers the trays from the platform to the processing position of the laser cutting equipment for laser trimming.

[0003] Multiple trays are stacked together in a tray frame. The conveyor line transports the tray frame to a designated position, allowing the first robotic arm to pick up the trays one by one. After all the trays in the tray frame have been picked up, the conveyor line returns the tray frame to its original position. Then, workers need to place the trays to be processed one by one inside the tray frame, ensuring they are arranged neatly (to guarantee that the first robotic arm can accurately pick up the trays). Therefore, manually assembling the trays inside the tray frame is quite laborious, and manual tray assembly cannot guarantee the accuracy of the arrangement. As a result, there is still a probability that the first robotic arm will not be able to accurately pick up each tray after the tray frame has been transported to the designated position. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic tray feeding device based on a laser cutting platform to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic tray feeding device based on a laser cutting platform, comprising: a conveyor line and a protective cover fixed outside the conveyor line; both ends of the conveyor line are fixedly mounted with support frames; both ends of the conveyor line are rotatably mounted with first rotating shafts; and the outer surface of each first rotating shaft is fixedly fitted with a first synchronous gear; a first synchronous toothed belt is driven between the two first synchronous gears; a drive motor is fixedly mounted at one end of the conveyor line, and the output end of the drive motor is drivenly mounted to the end of one of the first rotating shafts; the first synchronous toothed belt... There are two sets of wheels and two sets of the first synchronous toothed belts, which are symmetrically distributed. The first synchronous toothed belts are sleeved on the outside of the conveyor line, and material frames are fixedly provided on the upper end faces of the two first synchronous toothed belts. The conveyor line supports the first synchronous toothed belts and the material frames. The outer fixed frame of the protective cover is provided with a limiting plate. The distance between the upper end face of the material frame and the lower end face of the limiting plate is less than 5mm. Several mounting slots are opened on both the left and right sides of the inside of the material frame, and a material tray is slidably inserted between two oppositely distributed mounting slots. A limiting unit is provided between the material tray and the material frame.

[0006] It also includes: a feeding unit for automatically filling the material tray inside the material frame. The feeding unit is located at the end of the conveyor line. The feeding unit includes two symmetrically distributed limiting sleeves fixedly mounted at the end of the conveyor line. The upper and lower ends of the limiting sleeves are rotatably equipped with second rotating shafts, and the outer surface of the second rotating shafts is fixedly fitted with second synchronous gears. A second synchronous toothed belt is connected between the two second synchronous gears. The outer wall of the second synchronous toothed belt is equipped with several sets of docking components that are equidistantly distributed.

[0007] Preferably, the limiting unit includes a plurality of limiting slots formed inside the material frame. The number of limiting slots is the same as the number of mounting slots, and each limiting slot is distributed above the corresponding mounting slot. Each material tray has two symmetrically distributed right-angled trapezoidal slots on its upper surface. A first piston block is slidably fitted inside the limiting slot, and a tension spring is fixedly provided between the end of the first piston block near the right-angled trapezoidal slot and the limiting slot. A limiting trapezoidal block is also fixedly provided at the bottom of the first piston block and slidably fitted with the right-angled trapezoidal slot. The limiting trapezoidal block is in the shape of a right-angled trapezoid. An actuating component is also provided between the material frame and the limiting plate.

[0008] Preferably, the actuating component includes fixed base blocks fixed to the left and right end faces of the material frame. A sealing cylinder is fitted on the outer side of each limiting through groove, and the sealing cylinder is fixed inside the fixed base block. A connecting pipe is fixedly connected between the end face of the limiting through groove away from the mounting slot and the sealing cylinder. A second piston block is slidably fitted inside the sealing cylinder, and the connecting pipe is located on the side of the second piston block near the limiting plate. A pull rod passing through the sealing cylinder is fixedly installed at the end of the second piston block away from the connecting pipe. A second spring is installed on the outside of the pull rod, and the two ends of the second spring are fixed to the sealing cylinder and the second piston block, respectively. A connecting plate is fixedly installed at the end of several pull rods away from the sealing cylinder, and an extension rod is fixedly installed on the outside of the connecting plate. A stop block that obstructs the extension rod is also fixedly installed at the bottom of the limiting plate.

[0009] Preferably, the inclined surface of the limiting step block is parallel to the inclined surface of the right-angled trapezoidal groove.

[0010] Preferably, each group of docking components includes several groups of equidistant, linearly distributed limiting blocks. The number of groups of limiting blocks is the same as the number of mounting slots. Each group of limiting blocks consists of two blocks, which are symmetrically distributed front and back. The material tray is slidably fitted with the limiting blocks, and the material tray has a positioning slot. Each limiting block has a fixed frame inside. When the material tray and the limiting blocks are assembled, the axis of the frame coincides with that of the positioning slot. A sliding plate is slidably fitted inside the frame, and a first spring is fixedly installed between the top of the sliding plate and the frame. A dome-shaped limiting post is fixedly installed at the bottom of the sliding plate, and the arc end face of the dome-shaped limiting post abuts against the port of the positioning slot.

[0011] Preferably, each of the limiting sleeves has a skirt fixedly provided on its outer wall, and the material tray is located between two of the skirts.

[0012] Preferably, a transmission unit is provided between the second rotating shaft and the first rotating shaft, which are close to each other. The transmission unit includes a movable ratchet fixedly sleeved at both ends of the second rotating shaft located below. A transmission gear is fixedly sleeved at both ends of the first rotating shaft located close to the second rotating shaft. A slide bar is placed below each transmission gear. Two sets of meshing blocks are fixedly provided on the upper end surface of the slide bar. A set of ratchet blocks is also fixedly provided on the upper end surface of the slide bar, and the ratchet blocks are located between the two sets of meshing blocks. The meshing blocks are movably meshed with the transmission gears and the movable ratchet. A smooth part is provided at the end of each set of meshing blocks away from the limiting plate. An elastic limiting member is provided at the bottom of the two slide bars.

[0013] Preferably, a rotation damper is provided between each of the second rotating shafts and the limiting sleeve.

[0014] Preferably, when the slider moves away from the limiting plate, the ratchet block engages with the movable ratchet gear.

[0015] When the movable ratchet moves toward the limiting plate, the ratchet block and the movable ratchet do not engage in transmission.

[0016] Preferably, the elastic limiting member includes a first hanger and a second hanger respectively fixed below the two limiting sleeves and the two slide bars. A slide rod is fixedly installed inside the first hanger and slides through the second hanger. A third spring is fixedly installed between the first hanger and the second hanger and is sleeved on the outside of the slide rod.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] This invention uses docking components in the feeding unit to prepare multiple sets of trays in advance. When the trays in the tray frame are picked up and reset for replenishment, the trays pre-assembled on the second synchronous toothed belt can be directly inserted into the corresponding mounting slots to replenish the trays. When the first synchronous toothed belt moves the tray frame again, the limiting unit can confine the trays inside the tray frame for synchronous movement, thus completing the automatic feeding and replenishment of the trays. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the positional distribution of the material frame and the limiting plate of the present invention;

[0021] Figure 3 This is a schematic diagram of the limiting sleeve and the second synchronous toothed belt structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the conveyor line and protective cover structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the ratchet block and meshing block structure of the present invention;

[0024] Figure 6 This is a schematic diagram of the mounting slot structure of the present invention;

[0025] Figure 7 For the present invention Figure 6 Enlarged view of point A in the middle;

[0026] Figure 8This is a schematic diagram of the limiting block structure of the present invention;

[0027] Figure 9 For the present invention Figure 8 Enlarged view at point B in the middle;

[0028] Figure 10 For the present invention Figure 8 Enlarged view of point C.

[0029] In the diagram: 1. Conveyor line; 2. Protective cover; 3. First synchronous gear; 4. First synchronous toothed belt; 5. First rotating shaft; 6. Drive motor; 7. Material frame; 8. Mounting slot; 9. Material tray; 10. Limiting trapezoidal block; 11. Limiting through slot; 12. First piston block; 13. Right-angled trapezoidal slot; 14. Tension spring; 15. Limiting locking block; 16. Sleeve frame; 17. Sliding plate; 18. First spring; 19. Dome-shaped limiting post; 20. Positioning slot; 21. Sealing cylinder; 22. Second piston block; 23. 24. Pull rod; 25. Second spring; 26. Connecting plate; 27. Connecting pipe; 28. Fixed seat block; 29. ​​Stop block; 30. Limiting plate; 31. Bracket frame; 32. Limiting sleeve plate; 33. Second rotating shaft; 34. Second synchronous gear; 35. Second synchronous toothed belt; 36. Movable ratchet; 37. Slide bar; 38. Ratchet block; 39. Meshing block; 40. First hanger; 41. Second hanger; 42. Slide rod; 43. Third spring; 44. Extension rod; 45. Transmission gear; 46. Smooth part. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1: Please refer to Figures 1-10The diagram illustrates an automatic tray feeding device based on a laser cutting platform, comprising: a conveyor line 1 and a protective cover 2 fixed to the outside of the conveyor line 1. Support frames 30 are fixedly mounted at both ends of the conveyor line 1. First rotating shafts 5 are rotatably mounted at both ends of the conveyor line 1, and a first synchronous gear 3 is fixedly fitted onto the outer surface of each first rotating shaft 5. A first synchronous toothed belt 4 is driven between two first synchronous gears 3. A drive motor 6 is fixedly mounted at one end of the conveyor line 1, and the output end of the drive motor 6 is driven by the end of one of the first rotating shafts 5. The first synchronous gear 3 and the first... There are two sets of synchronous toothed belts 4, which are symmetrically distributed. The first synchronous toothed belt 4 is sleeved on the outside of the conveyor line 1, and a material frame 7 is fixedly installed on the upper end face of the two first synchronous toothed belts 4. The conveyor line 1 supports the first synchronous toothed belts 4 and the material frame 7. The outer fixed frame of the protective cover 2 is equipped with a limiting plate 29. The distance between the upper end face of the material frame 7 and the lower end face of the limiting plate 29 is less than 5mm. Several installation slots 8 are opened on the left and right sides of the inside of the material frame 7, which are distributed in a straight line at equal intervals. A material tray 9 is slidably inserted between two installation slots 8 that are distributed opposite to each other. A limiting unit is set between the material tray 9 and the material frame 7.

[0032] It also includes: a feeding unit for automatically filling the material tray 9 inside the material frame 7. The feeding unit is located at the end of the conveyor line 1. The feeding unit includes two symmetrically distributed limiting sleeves 31 fixedly mounted at the end of the conveyor line 1. The upper and lower ends of the limiting sleeves 31 are rotatably equipped with second rotating shafts 32, and the outer surface of the second rotating shafts 32 is fixedly fitted with second synchronous gears 33. A second synchronous toothed belt 34 is connected between the two second synchronous gears 33. The outer wall of the second synchronous toothed belt 34 is equipped with several sets of docking parts that are equidistantly distributed.

[0033] The limiting unit includes several limiting slots 11 formed inside the material frame 7. The number of limiting slots 11 is the same as the number of mounting slots 8, and each limiting slot 11 is distributed above the corresponding mounting slot 8. Each material tray 9 has two symmetrically distributed right-angled trapezoidal slots 13 on its upper surface. A first piston block 12 is slidably fitted inside the limiting slot 11, and a tension spring 14 is fixedly installed between the end of the first piston block 12 near the right-angled trapezoidal slot 13 and the limiting slot 11. A limiting trapezoidal block 10, which is slidably fitted to the right-angled trapezoidal slot 13, is also fixedly installed at the bottom of the first piston block 12. The limiting trapezoidal block 10 is in the shape of a right-angled trapezoid. A triggering component is also provided between the material frame 7 and the limiting plate 29. (See reference...) Figure 10 Under normal conditions, the limiting step block 10 remains inserted into the mounting slot 8. When the material tray 9 is inserted from the inside of the mounting slot 8, the limiting step block 10 and the first piston block 12 can be pushed upward by the inclined surface of the limiting step block 10, and the tension spring 14 is stretched until the limiting step block 10 enters the inside of the right-angled trapezoidal slot 13, after which the tension spring 14 will return to normal.

[0034] The actuating components include fixed base blocks 27 fixed to the left and right end faces of the material frame 7. Each limiting through groove 11 is equipped with a sealing cylinder 21 on its outer side, and the sealing cylinder 21 is fixed inside the fixed base block 27. A connecting pipe 26 is fixedly connected between the end face of the limiting through groove 11 away from the mounting slot 8 and the sealing cylinder 21. A second piston block 22 is slidably assembled inside the sealing cylinder 21, and the connecting pipe 26 is located on the side of the second piston block 22 near the limiting plate 29. A pull rod 23 is fixedly installed at the end of the second piston block 22 away from the connecting pipe 26, penetrating the sealing cylinder 21. A second spring 24 is installed on the outside of the pull rod 23, and the two ends of the second spring 24 are respectively connected to the sealing cylinder 21 and the second piston block. 22 is fixed, and a number of pull rods 23 are fixedly provided with connecting plates 25 at the ends away from the sealing cylinder 21. An extension rod 43 is fixedly provided on the outside of the connecting plate 25. A stop block 28 that obstructs the extension rod 43 is also fixedly provided at the bottom of the limiting plate 29. When the first synchronous toothed belt 4 moves the material frame 7 toward the limiting plate 29 and moves to the bottom of the limiting plate 29, the stop block 28 will obstruct the extension rod 43, causing the connecting plate 25 to stretch the second piston block 22 through the pull rod 23, thereby vacuuming the inside of the sealing cylinder 21, the connecting pipe 26 and the limiting through groove 11, so that the first piston block 12 can move upward under the action of negative pressure and stretch the tension spring 14 upward.

[0035] The inclined surface of the limiting step block 10 is parallel to the inclined surface of the right-angled trapezoidal groove 13.

[0036] Example 2: Please refer to Figure 6 , Figure 8 and Figure 9 This embodiment is a further explanation of other embodiments. Each set of docking components includes several sets of limiting blocks 15 distributed in a straight line at equal intervals. The number of sets of limiting blocks 15 is the same as the number of mounting slots 8. Each set of limiting blocks 15 has two blocks, which are symmetrically distributed front and back. The material tray 9 is slidably fitted with the limiting blocks 15, and the material tray 9 has a positioning slot 20 inside. Each limiting block 15 has a fixed frame 16 inside. In the assembled state of the material tray 9 and the limiting blocks 15, the frame... The axis of the sleeve 16 coincides with that of the positioning slot 20. The inside of the sleeve 16 is slidably fitted with a slide plate 17, and a first spring 18 is fixedly installed between the top of the slide plate 17 and the sleeve 16. A dome limiting post 19 is fixedly installed at the bottom of the slide plate 17, and the arc end face of the dome limiting post 19 abuts against the port of the positioning slot 20. The first spring 18 applies elastic pressure to the dome limiting post 19, so that the dome limiting post 19 is elastically squeezed against the port of the positioning slot 20, which can temporarily limit the material tray 9.

[0037] Each limiting sleeve 31 has a skirt fixedly installed on its outer wall. The material tray 9 is located between the two skirts. The skirts play a certain limiting role on the material tray 9, so that the staff can easily insert the material tray 9 between the two limiting blocks 15.

[0038] Example 3: Please refer to Figures 4-5 This embodiment is a further explanation of other embodiments. A transmission unit is provided between the second rotating shaft 32 and the first rotating shaft 5, which are close to each other. The transmission unit includes movable ratchet gears 35 fixedly sleeved at both ends of the second rotating shaft 32 located below. Transmission gears 44 are fixedly sleeved at both ends of the first rotating shaft 5 located close to the second rotating shaft 32. A slide bar 36 is placed below each transmission gear 44. Two sets of meshing blocks 38 are fixedly provided on the upper end surface of the slide bar 36. A set of ratchet blocks 37 are also fixedly provided on the upper end surface of the slide bar 36. Furthermore, the ratchet block 37 is located between the two sets of meshing blocks 38. The meshing blocks 38 are in active engagement with the transmission gear 44, and the ratchet block 37 is in active engagement with the movable ratchet gear 35. Each set of meshing blocks 38 is also provided with a smooth part 45 at the end away from the limiting plate 29. The bottom of the two slide bars 36 is provided with an elastic limiting member. Under the restriction of the slide bar 36 by the elastic limiting member, the first synchronous toothed belt 4 can be driven by the slide bar 36 to drive the second synchronous toothed belt 34 intermittently for a certain distance during transmission. This distance is the gap between the two sets of limiting blocks 15.

[0039] A rotation damper is provided between each second rotating shaft 32 and the limiting sleeve 31. The rotation damper increases the damping of the second rotating shaft 32 rotating inside the limiting sleeve 31, thus ensuring the stability of the transmission of the second rotating shaft 32.

[0040] When the slider 36 moves away from the limit plate 29, the ratchet block 37 engages with the movable ratchet gear 35 for transmission.

[0041] When the movable ratchet 35 moves toward the limiting plate 29, the ratchet block 37 and the movable ratchet 35 do not engage in transmission.

[0042] The elastic limiting component includes a first hanger 39 and a second hanger 40, which are respectively fixed below the two limiting sleeves 31 and the two slide bars 36. A slide rod 41 is fixedly installed inside the first hanger 39 and slides through the second hanger 40. A third spring 42 is fixedly installed between the first hanger 39 and the second hanger 40 and is sleeved on the outside of the slide rod 41. The elastic force generated by the compression of the third spring 42 allows the slide bar 36 to have a certain reset capability after displacement.

[0043] Working principle: Through the transmission of the first synchronous toothed belt 4 by the drive motor 6, as long as the material frame 7 moves to the lower position of the limiting plate 29, it reaches the designated position, allowing the robot arm to pick up and process the multiple material trays 9 placed inside the material frame 7. Through the multiple sets of limiting blocks 15 mounted on the outer wall of the second synchronous toothed belt 34, multiple sets of material trays 9 can be pre-assembled on the second synchronous toothed belt 34. When the first synchronous toothed belt 4 moves the material frame 7 toward the limiting sleeve 31, several material trays 9 can be directly inserted into the corresponding mounting slots 8. During the insertion process, the end of the material tray 9 will push the limiting step block 10 and the first piston block 12 upward through the inclined surface of the limiting step block 10 until the limiting step block 10 is embedded in the right-angled trapezoidal groove 13 under the action of the reaction spring force. At this time, the material tray 9 is effectively assembled inside the mounting slot 8. At this time, as the first synchronous toothed belt 4 moves the material frame 7 towards the limiting plate 29 again, the right-angled side of the limiting step block 10 fits with the right-angled side of the right-angled trapezoidal groove 13, which allows the dome limiting post 19 to separate from the positioning slot 20.

[0044] When the material frame 7 is transported to the designated position, the stop block 28 can push the extension rod 43 in advance, so that the connecting plate 25, along with several pull rods 23, pulls the second piston block 22. The second piston block 22 evacuates the air inside the sealing cylinder 21, connecting pipe 26, and limiting groove 11. The negative pressure can push the first piston block 12 upward, that is, make the first piston block 12 move upward along with the limiting step block 10, so that the limiting step block 10 cannot restrict the right-angled trapezoidal groove 13. At this time, the material tray 9 is in an unrestricted state, which makes it convenient for the robot to pick up and process the material tray 9.

[0045] refer to Figure 4 , Figure 5 When the material frame 7 is in the material receiving completed state, it will move towards the limiting plate 29 under the transmission of the first synchronous toothed belt 4. At this time, through the meshing action of the transmission gear 44 and the meshing block 38, the slide bar 36 moves away from the limiting plate 29. When it first moves, since there is a certain distance between the ratchet block 37 and the movable ratchet 35, the slide bar 36 will not drive the movable ratchet 35 to drive at the beginning of the movement. However, under the continuous transmission of the first synchronous toothed belt 4, the slide bar 36 will mesh with the movable ratchet 35 through the ratchet block 37, so that the second synchronous toothed belt 34 will drive clockwise a certain distance. The driving stroke is related to the overall length of a set of ratchet blocks 37. In this solution, the driving stroke is the distance between two adjacent sets of limiting blocks 15, so as to facilitate the replenishment of the material tray 9 in the material frame 7 next time.

[0046] When the first synchronous toothed belt 4 carries the material frame 7 towards the direction of the limiting sleeve plate 31, the meshing transmission of the transmission gear 44 and the meshing block 38, together with the elastic pushing of the second hanger 40 and the slide bar 36 by the third spring 42, allows the slide bar 36 to move back towards the direction of the limiting plate 29 until the transmission gear 44 contacts the smooth part 45, thereby completing the reset process of the slide bar 36.

[0047] Through the above driving method, the second synchronous toothed belt 34 can carry several sets of limit blocks 15 to transmit intermittently at equal intervals, thereby facilitating the automatic feeding of the material trays 9 inside the material frame 7. By setting multiple sets of limit blocks 15, multiple sets of material trays 9 can be prepared in advance, which can increase the rest time between groups of loading workers and reduce the workload of loading workers.

[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0049] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tray automatic feeding device based on a laser cutting platform, characterized in that, The utility model relates to a kind of automatic feeding device, including: Conveying line body (1) and the protective casing (2) fixed outside the conveying line body (1), the both ends of the conveying line body (1) are rotatably equipped with first rotating shaft (5), and the outer surface of each first rotating shaft (5) is also fixed with first synchronous gear (3) set, first synchronous gear belt (4) is transmission equipped between two first synchronous gears (3), one end of the conveying line body (1) is fixedly equipped with driving motor (6), and the output end of the driving motor (6) is transmission equipped with the end of the first rotating shaft (5), and the upper end surface of the first synchronous gear belt (4) is fixedly provided with material frame (7), the conveying line body (1) plays the role of bearing to the first synchronous gear belt (4) and the material frame (7), the outside of the protective casing (2) is fixedly arranged with limit plate (29), the inside of the material frame (7) is symmetrically arranged with a plurality of installation slots (8) that are linearly equidistantly distributed, and the sliding insertion of material tray (9) is arranged between the two installation slots (8) that are oppositely distributed, and the limit unit is arranged between the material tray (9) and the material frame (7); Also including: Feeding unit, for automatically filling the material tray (9) in the material frame (7), the feeding unit is arranged at the end of the conveying line body (1), and the feeding unit includes two limit sleeve plates (31) that are symmetrically arranged and fixedly arranged at the end of the conveying line body (1), the upper and lower ends of the limit sleeve plate (31) are rotatably equipped with second rotating shaft (32), and the outer surface of the second rotating shaft (32) is fixed with second synchronous gear (33) set, second synchronous gear belt (34) is transmission equipped between two second synchronous gears (33), and the outer wall of the second synchronous gear belt (34) is equipped with a plurality of docking components that are equidistantly distributed in groups; The limit unit includes a plurality of limit through-slots (11) formed in the interior of the material frame (7), the upper end surface of each material tray (9) is provided with two symmetrically distributed right-angled trapezoidal grooves (13), the interior of the limit through-slot (11) is slidably equipped with first piston block (12), and the end of the first piston block (12) close to the right-angled trapezoidal groove (13) is fixedly provided with tension spring (14) between the limit through-slot (11), the bottom of the first piston block (12) is also fixedly provided with limit ladder block (10) slidably equipped with the right-angled trapezoidal groove (13), the material frame (7) and the limit plate (29) are also provided with a touch component; The touch component includes fixed seat blocks (27) fixed at both ends of the material frame (7), a sealing cylinder (21) is arranged at the outer side of each limiting through groove (11), and the sealing cylinder (21) is fixed in the fixed seat block (27), a connecting pipe (26) is fixed and communicated between the end of the limiting through groove (11) away from the mounting slot (8) and the sealing cylinder (21), a second piston block (22) is slidingly arranged in the sealing cylinder (21), a pull rod (23) is fixedly arranged at the end of the second piston block (22) away from the connecting pipe (26), a second spring (24) is arranged on the outer side of the pull rod (23), and the two ends of the second spring (24) are fixed to the sealing cylinder (21) and the second piston block (22) respectively, a connecting plate (25) is fixedly arranged at the end of each pull rod (23) away from the sealing cylinder (21), and an extension rod (43) is fixedly arranged on the outer side of the connecting plate (25), and a stop block (28) for hindering the extension rod (43) is further fixedly arranged on the bottom of the limiting plate (29). The transmission unit is arranged between the second rotating shaft (32) and the first rotating shaft (5) close to each other, the transmission unit includes movable ratchet gears (35) fixedly sleeved at both ends of one second rotating shaft (32) located below, transmission gears (44) are fixedly sleeved at both ends of one first rotating shaft (5) close to the second rotating shaft (32), one sliding strip (36) is arranged below each transmission gear (44), two groups of meshing blocks (38) are fixedly arranged on the upper end surface of the sliding strip (36), one group of ratchet blocks (37) is further fixedly arranged on the upper end surface of the sliding strip (36), the meshing blocks (38) are movably engaged with the transmission gears (44), and the ratchet blocks (37) are movably engaged with the movable ratchet gears (35), and the end of each group of meshing blocks (38) away from the limiting plate (29) is further provided with a smooth part (45), and the bottoms of the two sliding strips (36) are provided with elastic limiting members.

2. The automatic tray feeding device based on a laser cutting platform according to claim 1, characterized in that: The inclined surface of the limiting ladder block (10) is parallel to the inclined surface of the right-angled trapezoidal groove (13).

3. The tray automatic feeding device based on a laser cutting platform according to claim 1, characterized in that: Each group of the butt joint components includes a plurality of limiting clamping blocks (15) distributed in a straight line at equal distances, the material tray (9) is slidingly embedded with the limiting clamping blocks (15), the inner portion of the material tray (9) is provided with a positioning slot hole (20), the inner portion of each limiting clamping block (15) is fixedly provided with a sleeve frame (16), the inner portion of the sleeve frame (16) is slidingly embedded with a sliding disc (17), a first spring (18) is fixedly arranged between the top of the sliding disc (17) and the sleeve frame (16), the bottom of the sliding disc (17) is fixedly provided with a dome-shaped limiting column (19), and the arc end surface of the dome-shaped limiting column (19) abuts against the port of the positioning slot hole (20).

4. The automatic tray feeding device based on a laser cutting platform according to claim 3, characterized in that: The outer wall of each limiting sleeve plate (31) is fixedly provided with a skirt, and the material tray (9) is located between two skirts.

5. The tray automatic feeding device based on a laser cutting platform according to claim 1, characterized in that: A rotation damper is arranged between each second rotating shaft (32) and the limiting sleeve plate (31).

6. The tray automatic feeding device based on a laser cutting platform according to claim 1, characterized in that: When the slide bar (36) moves away from the limiting plate (29), the ratchet block (37) is engaged with the movable ratchet gear (35) to drive; When the movable ratchet gear (35) moves towards the limiting plate (29), the ratchet block (37) is not engaged with the movable ratchet gear (35) to drive.

7. The tray automatic feeding device based on a laser cutting platform according to claim 1, characterized in that: The elastic limiting member comprises a first hanger (39) and a second hanger (40) fixed below two limiting sleeve plates (31) and two slide bars (36) respectively, a slide rod (41) is fixedly arranged in the first hanger (39), the slide rod (41) slidably penetrates the second hanger (40), and a third spring (42) is fixedly arranged between the first hanger (39) and the second hanger (40).

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