A laser cutting device for tarpaulin processing

Abstract

The present invention discloses a laser cutting device for tarpaulin processing, which relates to the technical field of laser cutting devices. In order to solve the problem that the existing laser cutting device limits the two ends of the fabric to avoid wrinkles during cutting, but due to the various shapes of tarpaulin products, if the tarpaulin products and waste on the workbench are missed during cleaning after cutting, the tarpaulin placed below will make the tarpaulin to be cut subsequently uneven, thus affecting the cutting qualification rate. A laser cutting device body is arranged at the lower end of the laser cutting device body. A driving frame is slidably installed above the laser cutting device body. A laser fixing seat is slidably installed above the driving frame. A tarpaulin unloading driving mechanism is installed below the rear side of the driving frame. A waste slot is arranged at the rear end of the second sprocket of the laser cutting workbench. A product slot is arranged at the rear side of the waste slot.

Description

Technical Field

[0001] The present invention relates to the technical field of laser cutting devices, and in particular to a laser cutting device for tarpaulin processing. Background Art

[0002] A tarpaulin is a high-strength waterproof material with good toughness and softness, often used as canvas, polyester with a polyurethane coating, or made into polyethylene plastics. Tarpaulins usually have strong grommets at the corners or edges for easy threading of ropes for tying, hanging, or covering. Tarpaulins are a widely used textile, and their main applications include but are not limited to the following aspects: It can be used as a material for temporary sheds and warehouses to provide shelter for materials, goods, and equipment; the surface of the tarpaulin is flat and brightly colored, suitable for printing various advertisements, slogans, patterns, etc.; it can be used as a tent, sunshade, picnic mat, etc. to provide a comfortable resting environment for people. In addition, tarpaulins can also be used to make toys such as kites and sailboats to enrich people's entertainment life. Due to different usage requirements, tarpaulins need to be cut into different sizes, and a laser cutting device for tarpaulins is a laser device specifically used for cutting materials such as tarpaulins. This device utilizes the high energy density characteristics of the laser beam. Through a focusing mirror, the laser beam is focused into an extremely small light spot and irradiated onto the surface of the tarpaulin, causing the material to quickly melt, vaporize, or reach the ignition point, thereby achieving precise cutting. The laser cutting device for tarpaulins has the following advantages: The laser beam is fine, enabling high-precision cutting to meet the fine processing requirements of materials such as tarpaulins. The cutting speed is fast, the typesetting is flexible, and the production efficiency can be greatly improved. There is no mechanical contact during the laser cutting process, eliminating the need for cutting tools and coolants, reducing pollution and energy consumption.

[0003] Chinese Patent Publication No. CN213080413U discloses a laser cutting device for fabric processing, including a workbench. The workbench is provided with a cutting mechanism for laser cutting of fabrics. Both ends of the left side of the upper end surface of the workbench are fixedly connected with support plates. A winding cylinder is rotatably connected between the two support plates. The bottom of the workbench is fixedly connected with a cylinder. The output end of the cylinder is fixedly connected with a telescopic rod. The bottom of the telescopic rod is fixedly connected with a bottom plate; the limiting plate presses the suspended fabric tightly against the workbench, completing the limiting of both ends of the fabric and stretching the fabric, capable of stretching the fabric while limiting both ends of the fabric, preventing wrinkles from occurring when the fabric is laid flat for cutting, and avoiding the phenomenon of fabric waste caused by fabric distortion and inclination during cutting, with a simple structure and strong practicability.

[0004] The existing technical solutions in the above have the following defects: The above laser cutting device avoids wrinkles during cutting by limiting both ends of the fabric. However, due to the various shapes of tarpaulin products, if the tarpaulin products and waste on the workbench are not cleared after cutting and are left under the tarpaulin, it will make the tarpaulin to be cut subsequently uneven, thus affecting the cutting qualification rate. Therefore, we propose a laser cutting device for tarpaulin processing to solve the problems raised above. Summary of the Invention

[0005] The purpose of the present invention is to provide a laser cutting device for tarpaulin processing to solve the problem raised in the above background technology that the existing laser cutting device avoids wrinkles during cutting by limiting both ends of the fabric. However, due to the various shapes of tarpaulin products, if the tarpaulin products and waste on the workbench are not cleared after cutting and are left under the tarpaulin, it will make the tarpaulin to be cut subsequently uneven, thus affecting the cutting qualification rate.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: A laser cutting device for tarpaulin processing, including the laser cutting device body. The lower end of the laser cutting device body is provided with the laser cutting device body. A driving frame is slidably installed above the laser cutting device body. A laser fixing seat is slidably installed above the driving frame. A tarpaulin unloading driving mechanism is installed below the rear side of the driving frame. A waste slot is provided at the rear end of the second sprocket of the laser cutting workbench. A product slot is provided at the rear side of the waste slot.

[0007] Preferably, the rear side of the driving frame is slidably connected to the second sprocket of the laser cutting workbench through a drag chain. The rear side of the laser fixing seat is slidably connected to the driving frame through a drag chain.

[0008] Preferably, a vacuum pump is fixedly installed at the middle position above the laser fixing seat. A filter box is installed on one side of the vacuum pump. The intake end of the vacuum pump is hermetically installed with a main intake pipe. The end of the main intake pipe away from the vacuum pump is hermetically installed with an intake three-way valve.

[0009] Preferably, a smoke isolation cover is fixedly installed at the outer end below the laser fixing seat. A laser cutting head is installed at the middle position below the laser fixing seat. The laser cutting head is located inside the smoke isolation cover. A CCD camera is installed on the front side of the smoke isolation cover. The upper end of the filter box is hermetically installed with an air outlet pipe of the filter box. The upper end of the air outlet pipe of the filter box is hermetically connected to one end of the intake three-way valve. The other end of the intake three-way valve is hermetically installed with a total suction pipe of the vacuum suction cup. The lower ends of the smoke isolation cover and the filter box are hermetically connected through a filter box intake pipe.

[0010] Preferably, a cloth winding roller is rotatably installed at the lower end of the front side of the laser cutting workbench. An ion air bar is installed above the cloth winding roller. A second cloth guiding roller is installed above the ion air bar. A first cloth guiding roller is installed above the second cloth guiding roller. The second cloth guiding roller and the first cloth guiding roller are rotatably connected to the second cloth guiding roller. A cloth receiving roller is rotatably installed at the lower end of the rear side of the laser cutting workbench.

[0011] Preferably, the tarpaulin unloading driving mechanism includes an electric telescopic cylinder of the tarpaulin unloading driving mechanism, a driving box, a support frame, a driving motor, a driving sprocket, a driven sprocket, a driving rod, a chain, a chain plate vacuum suction cup driving mechanism, a tarpaulin driving wheel, a driving lead screw, and an installation plate of the electric telescopic cylinder of the tarpaulin unloading driving mechanism. An electric telescopic cylinder groove of the tarpaulin unloading driving mechanism is formed at the lower end of the driving frame. A driving lead screw is installed at the upper end of the inner wall of the electric telescopic cylinder groove of the tarpaulin unloading driving mechanism. Two installation plates of the electric telescopic cylinder of the tarpaulin unloading driving mechanism are symmetrically and drivingly installed below the driving lead screw. Electric telescopic cylinders of the tarpaulin unloading driving mechanism are symmetrically and fixedly installed below the installation plates of the electric telescopic cylinder of the tarpaulin unloading driving mechanism. A driving box is installed below the electric telescopic cylinder of the tarpaulin unloading driving mechanism. Support frames are fixedly installed on both sides of the driving box. The support frames are fixedly connected to the lower ends of the electric telescopic cylinders of the tarpaulin unloading driving mechanism. The upper ends of the electric telescopic cylinders of the tarpaulin unloading driving mechanism are fixedly connected to the inner walls of the electric telescopic cylinder grooves of the tarpaulin unloading driving mechanism.

[0012] Preferably, a driving motor is fixedly installed on one side of the support frame. A driving sprocket and a driven sprocket are installed inside the driving box. The driving sprocket is located above the driven sprocket. The driving sprocket and the driven sprocket are connected by a chain. The output end of the driving motor is drivingly connected to the driving sprocket. A driving rod is installed between the two driving boxes. The driven sprocket is fixedly sleeved on the outside of one end of the driving rod. The driven sprocket is rotatably connected to the driving box through a bearing. The chain plate vacuum suction cup driving mechanism and the tarpaulin driving wheel are fixedly installed at intervals on the outside of the driving rod.

[0013] Preferably, the chain plate vacuum suction cup driving mechanism includes a mounting chain plate, a vacuum suction cup, a second vacuum suction cup sub-suction pipe, a second vacuum suction cup sub-suction pipe valve, a first sprocket, a mounting chain plate connecting strip, a second sprocket, a second vacuum suction cup sub-suction pipe limiting plate, and a first vacuum suction cup sub-suction pipe. Ten mounting chain plates are arranged on the outer side of the chain plate vacuum suction cup driving mechanism. A mounting chain plate connecting strip is installed between the left and right ends of adjacent mounting chain plates. The mounting chain plate connecting strip is rotatably connected to the mounting chain plate through a connecting rod. Five vacuum suction cups are equidistantly installed inside the mounting chain plate. A second vacuum suction cup sub-suction pipe is hermetically connected in series at the rear end of the vacuum suction cup. A first sprocket and a second sprocket are respectively arranged inside both sides of the chain plate vacuum suction cup driving mechanism. The first sprocket is located on one side of the second sprocket. The first sprocket and the second sprocket are respectively key-connected to the driving rods on both sides. Sprocket grooves are symmetrically formed at the left and right ends of the mounting chain plate, and the sprocket grooves are respectively meshed with the first sprocket. Six second vacuum suction cup sub-suction pipe grooves are annularly formed on the outer sides of the first sprocket and the second sprocket. The second vacuum suction cup sub-suction pipe is movably connected to the second vacuum suction cup sub-suction pipe groove.

[0014] Preferably, a second vacuum suction cup sub-suction pipe limiting plate is arranged on one side of the first sprocket. A shunt is installed on one side of the second vacuum suction cup sub-suction pipe limiting plate. One end of the second vacuum suction cup sub-suction pipe is hermetically connected to one end of the shunt. A second vacuum suction cup sub-suction pipe valve is hermetically installed on one side of the second vacuum suction cup sub-suction pipe. One side of the shunt is hermetically connected to a first vacuum suction cup sub-suction pipe. The other end of the first vacuum suction cup sub-suction pipe is hermetically connected to the filter box inlet pipe through the shunt.

[0015] Preferably, driving rod grooves are symmetrically formed on both sides of the second vacuum suction cup sub-suction pipe limiting plate. The driving rod is located inside the driving rod groove and is rotatably connected through a bearing. A second vacuum suction cup sub-suction pipe limiting groove is formed at the middle position of the second vacuum suction cup sub-suction pipe limiting plate. One end of the second vacuum suction cup sub-suction pipe passes through the inside of the second vacuum suction cup sub-suction pipe limiting groove. A sliding block groove is formed on the outer side of the second vacuum suction cup sub-suction pipe limiting groove. Sliding blocks are symmetrically installed above and below one end of the shunt. The sliding blocks are slidably connected to the sliding block groove.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The chain plate vacuum suction cup driving mechanism of the present invention can suck the tarpaulin products and waste materials and drive them to move, so that they enter the corresponding waste slot or product slot. During the sucking, the driving screw is started according to the position of the tarpaulin product to adjust the position of the electric telescopic cylinder mounting plate of the tarpaulin unloading driving mechanism, and the electric telescopic cylinder mounting plate of the tarpaulin unloading driving mechanism drives the electric telescopic cylinder of the tarpaulin unloading driving mechanism to move horizontally. The electric telescopic cylinder of the tarpaulin unloading driving mechanism drives the driving box to move through the supporting frame, and the driving box drives the driving rod to move horizontally, so that the position of the chain plate vacuum suction cup driving mechanism is aligned with the tarpaulin product. The air inlet three-way valve is adjusted to connect the main air inlet pipe and the main air suction pipe of the vacuum suction cup, and the vacuum pump is started. The negative pressure generated by the vacuum pump allows air to be sucked from the vacuum suction cup, and enters the diverter through the second vacuum suction cup branch air suction pipe. The diverter collects the air into the first vacuum suction cup branch air suction pipe, and the air in the first vacuum suction cup branch air suction pipe is then collected into the main air suction pipe of the vacuum suction cup through the diverter, so that the vacuum suction cup generates negative pressure, and the electric telescopic cylinder of the tarpaulin unloading drive mechanism is extended to drive the drive box to move downward, so that the vacuum suction cup is adsorbed on the upper surface of the tarpaulin product, thereby fixing the tarpaulin product. At this time, the drive The drag chain between the dynamic drive frame and the laser cutting workbench allows the vacuum suction cup to be placed above the product slot. When the tarpaulin product is long, the drive motor can be driven, and the drive motor drives the active sprocket to rotate, and the active sprocket drives the driven sprocket to rotate through the chain, and the driven sprocket drives the drive rod to rotate, and the drive rod drives the installation chain plate to roll through the drive sprocket, so that the vacuum suction cup can roll, and the second vacuum suction cup sub-suction pipe valve is used to adjust the on-off of the second vacuum suction cup sub-suction pipe. When the vacuum suction cup moves to the lower end of the chain plate vacuum suction cup drive mechanism, the second vacuum suction cup sub-suction pipe valve can be opened. When it leaves the chain plate When the vacuum suction cup driving mechanism is at the lower end, the second vacuum suction cup suction pipe valve can be closed to drag the tarpaulin product into the product slot. At this time, the waste is grabbed by the chain plate vacuum suction cup driving mechanism and driven to the top of the waste slot. The waste enters the waste slot in the above manner, which solves the problem that the existing laser cutting device limits the two ends of the fabric to avoid wrinkles during cutting. However, due to the different shapes of tarpaulin products, if the tarpaulin products and waste materials on the workbench are missed when cleaning after cutting, they will be placed under the tarpaulin, which will make the tarpaulin that needs to be cut later uneven, thereby affecting the cutting qualification rate.

[0018] 2. In the present invention, the CCD camera takes pictures of the cut image and sends it to the control unit of the laser cutting device body. The control unit analyzes and identifies the image processing algorithm to determine whether the cut pattern is deviated or shifted. When a problem is found, the cutting operation is stopped to facilitate the staff to adjust the fault in time, thereby preventing more unqualified tarpaulin products from being cut. After the cutting operation is completed, the CCD camera observes the positions of the cut tarpaulin products and waste materials, and records the positions of the tarpaulin products and waste materials, which is convenient for the subsequent suction operation of the tarpaulin products and waste materials. By using one CCD camera, different usage requirements are met, thus reducing the equipment cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the front view of the present invention;

[0020] Figure 2 is the top view of the present invention;

[0021] Figure 3 is the connection relationship diagram of the driving frame and the tarpaulin unloading driving mechanism in the present invention;

[0022] Figure 4 is the front view of the chain plate vacuum suction cup driving mechanism in the present invention;

[0023] Figure 5 in the present invention Figure 4 is the sectional view taken along the A-A direction;

[0024] Figure 6 is the structural schematic diagram of the chain plate vacuum suction cup driving mechanism in the present invention;

[0025] Figure 7 is the three-dimensional view of the second vacuum suction cup split suction pipe limiting plate in the present invention;

[0026] Figure 8 is the structural schematic diagram of the first sprocket in the present invention.

[0027] In the figure: 1. Laser cutting device body; 2. Driving frame; 3. Laser fixing seat; 4. Smoke isolation shield; 5. Cloth winding roller; 6. Ion air bar; 7. First cloth guiding roller; 8. Laser cutting head; 9. Vacuum pump; 10. Filter box; 11. Main air inlet pipe; 12. Intake three-way valve; 13. Outlet pipe of the filter box; 14. Total suction pipe of the vacuum suction cup; 15. Intake pipe of the filter box; 16. Second cloth guiding roller; 17. Cloth receiving roller; 18. Waste material trough; 19. Product trough; 20. Electric telescopic cylinder trough of the tarpaulin unloading driving mechanism; 21. Electric telescopic cylinder of the tarpaulin unloading driving mechanism; 22. Driving box; 23. Support frame; 24. Driving motor; 25. Driving sprocket; 26. Driven sprocket; 27. Driving rod; 28. Chain; 29. Chain plate vacuum suction cup driving mechanism; 30. Tarpaulin driving wheel; 31. Mounting chain plate; 32. Vacuum suction cup; 33. Second sub-suction pipe of the vacuum suction cup; 34. Valve of the second sub-suction pipe of the vacuum suction cup; 35. First sprocket; 36. Tarpaulin unloading driving mechanism; 37. Connecting bar of the mounting chain plate; 38. Laser cutting workbench; 39. Second sprocket; 40. Driving lead screw; 41. Mounting plate of the electric telescopic cylinder of the tarpaulin unloading driving mechanism; 42. Limiting plate of the second sub-suction pipe of the vacuum suction cup; 43. Trough of the second sub-suction pipe of the vacuum suction cup; 44. Shunt; 45. First sub-suction pipe of the vacuum suction cup; 46. Sliding block; 47. Limiting groove of the second sub-suction pipe of the vacuum suction cup; 48. Trough of the driving rod; 49. Trough of the sliding block; 50. CCD camera. Detailed implementation mode

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0029] Please refer to Figures 1-8 , an embodiment provided by the present invention: A laser cutting device for tarpaulin processing, including a laser cutting device body 1, a laser cutting device body 1 is provided at the lower end of the laser cutting device body 1, a driving frame 2 is slidably installed above the laser cutting device body 1, a laser fixing seat 3 is slidably installed above the driving frame 2, a tarpaulin unloading driving mechanism 36 is installed below the rear side of the driving frame 2, a waste material trough 18 is provided at the rear end of the second sprocket 39 of the laser cutting workbench 38, and a product trough 19 is provided at the rear side of the waste material trough 18.

[0030] After the cutting operation is completed, the CCD camera 50 observes the position of the cut tarpaulin product and the waste material. After the observation is completed, the driving screw 40 is started to adjust the position of the electric telescopic cylinder mounting plate 41 of the tarpaulin unloading driving mechanism according to the position of the tarpaulin product. The electric telescopic cylinder mounting plate 41 of the tarpaulin unloading driving mechanism drives the electric telescopic cylinder 21 of the tarpaulin unloading driving mechanism to move horizontally. The electric telescopic cylinder 21 of the tarpaulin unloading driving mechanism drives the driving box 22 to move through the support frame 23. The driving box 22 drives the driving rod 27 to move horizontally, so that the position of the chain plate vacuum suction cup driving mechanism 29 is aligned with the tarpaulin product. At this time, the air intake three-way valve 12 is adjusted to connect the main air intake pipe 11 and the vacuum suction cup main suction pipe 14, and the vacuum pump 9 is started. The negative pressure generated by the vacuum pump 9 allows air to be sucked from the vacuum suction cup 32, and enters the diverter 44 through the second vacuum suction cup branch suction pipe 33. The diverter 44 collects the air into the first vacuum suction cup branch suction pipe 45. The air in the first vacuum suction cup branch suction pipe 45 is then collected into the vacuum suction cup main suction pipe 14 through the diverter 44, so that the vacuum suction cup 32 generates negative pressure, and the electric telescopic cylinder 21 of the tarpaulin unloading drive mechanism drives the drive box 22 to move downward, so that the vacuum suction cup 32 is adsorbed on the upper surface of the tarpaulin product, thereby fixing the tarpaulin product. At this time, the drag chain between the driving frame 2 and the laser cutting workbench 38 is driven to place the vacuum suction cup 32 above the product slot 19. When the size of the tarpaulin product is long, the driving motor 24 can be driven, and the driving motor 24 drives the active sprocket 25 to rotate. The active sprocket 25 drives the driven sprocket 26 to rotate through the chain 28, and the driven sprocket 26 drives the driving rod 27 to rotate. The driving rod 27 drives the installation chain plate 31 to roll by driving the first sprocket 35, so that the vacuum suction cup 32 rolls, and the second vacuum suction cup is divided into the suction pipe valve. 34 adjusts the on-off of the second vacuum suction cup suction pipe 33. When the vacuum suction cup 32 moves to the lower end of the chain plate vacuum suction cup driving mechanism 29, the second vacuum suction cup suction pipe valve 34 can be opened. When leaving the lower end of the chain plate vacuum suction cup driving mechanism 29, the second vacuum suction cup suction pipe valve 34 can be closed, thereby dragging the tarpaulin product into the interior of the product groove 19. At this time, the chain plate vacuum suction cup driving mechanism 29 grabs the waste material and drives it to the top of the waste groove 18. The waste material enters the waste groove 18 in the above manner, and finally the cloth collecting roller 17 is started to drive the cloth to move forward, and then the subsequent cutting operation is carried out.

[0031] See also Figures 1-2 The rear side of the driving frame 2 is slidably connected to the second sprocket 39 of the laser cutting workbench 38 through a drag chain, and the rear side of the laser fixing seat 3 is slidably connected to the driving frame 2 through a drag chain.

[0032] The drive of the drag chain can achieve high-precision driving requirements, thereby accurately meeting the cutting requirements of various sizes.

[0033] See alsoFigures 1-2 At the middle position above the laser fixing base 3, a vacuum pump 9 is fixedly installed. One side of the vacuum pump 9 is provided with a filter box 10. The air inlet end of the vacuum pump 9 is hermetically installed with a main intake pipe 11. The end of the main intake pipe 11 away from the vacuum pump 9 is hermetically installed with an intake three-way valve 12. The outer end below the laser fixing base 3 is fixedly installed with a smoke isolation cover 4. At the middle position below the laser fixing base 3, a laser cutting head 8 is installed. The laser cutting head 8 is located inside the smoke isolation cover 4. A CCD camera 50 is installed on the front side of the smoke isolation cover 4. Above the filter box 10, a filter box outlet pipe 13 is hermetically installed. The upper end of the filter box outlet pipe 13 is hermetically connected to one end of the intake three-way valve 12. The other end of the intake three-way valve 12 is hermetically installed with a vacuum chuck main suction pipe 14. The lower ends of the smoke isolation cover 4 and the filter box 10 are hermetically connected through a filter box intake pipe 15.

[0034] The vacuum pump 9 generates negative pressure by sucking air, so as to meet the requirements of sucking smoke during cutting and the suction requirements when the chain plate vacuum chuck driving mechanism 29 grabs materials. The flow direction of the negative pressure gas can be adjusted by adjusting the intake three-way valve 12. The CCD camera 50 is arranged outside the smoke isolation cover 4, which can effectively prevent the influence of the smoke during cutting on the clarity of the captured image. The filter box 10 is used to filter the smoke.

[0035] Please refer to Figures 1-2 At the lower end of the front side of the laser cutting workbench 38, a cloth winding roller 5 is rotatably installed. Above the cloth winding roller 5, an ion wind bar 6 is installed. Above the ion wind bar 6, a second cloth guiding roller 16 is installed. Above the second cloth guiding roller 16, a first cloth guiding roller 7 is installed. The second cloth guiding roller 16 and the first cloth guiding roller 7 are rotatably connected to the second cloth guiding roller 16. At the lower end of the rear side of the laser cutting workbench 38, a cloth receiving roller 17 is rotatably installed. The ion wind generated by the ion wind bar 6 blows the tarpaulin, which can effectively blow away the dust electrostatically adsorbed on the surface of the tarpaulin, thereby improving the cutting accuracy. The cloth winding roller 5 can wind up the tarpaulin, and the cloth receiving roller 17 can provide power for the tarpaulin roll.

[0036] Please refer to Figure 3, the tarpaulin unloading drive mechanism 36 includes an electric telescopic cylinder 21 of the tarpaulin unloading drive mechanism, a drive box 22, a support frame 23, a drive motor 24, a driving sprocket 25, a driven sprocket 26, a drive rod 27, a chain 28, a chain plate vacuum suction cup drive mechanism 29, a tarpaulin drive wheel 30, a drive screw rod 40, and a mounting plate 41 for the electric telescopic cylinder of the tarpaulin unloading drive mechanism. At the lower end of the drive frame 2, there is a groove 20 for the electric telescopic cylinder of the tarpaulin unloading drive mechanism. At the upper end of the inner wall of the groove 20 for the electric telescopic cylinder of the tarpaulin unloading drive mechanism, a drive screw rod 40 is installed. Symmetrically and drivably below the drive screw rod 40, there are two mounting plates 41 for the electric telescopic cylinder of the tarpaulin unloading drive mechanism. Symmetrically and fixedly below the mounting plates 41 for the electric telescopic cylinder of the tarpaulin unloading drive mechanism, there are electric telescopic cylinders 21 of the tarpaulin unloading drive mechanism. Below the electric telescopic cylinders 21 of the tarpaulin unloading drive mechanism, a drive box 22 is installed. On both sides of the drive box 22, support frames 23 are fixedly installed. The support frames 23 are fixedly connected to the lower ends of the electric telescopic cylinders 21 of the tarpaulin unloading drive mechanism. The upper ends of the electric telescopic cylinders 21 of the tarpaulin unloading drive mechanism are fixedly connected to the inner wall of the groove 20 for the electric telescopic cylinder of the tarpaulin unloading drive mechanism. On one side of the support frame 23, a drive motor 24 is fixedly installed. Inside the drive box 22, a driving sprocket 25 and a driven sprocket 26 are installed. The driving sprocket 25 is located above the driven sprocket 26. The driving sprocket 25 and the driven sprocket 26 are connected by a chain 28. The output end of the drive motor 24 is connected to the driving sprocket 25. Between the two drive boxes 22, a drive rod 27 is installed. The driven sprocket 26 is fixedly sleeved on the outside of one end of the drive rod 27. The driven sprocket 26 is rotatably connected to the drive box 22 through a bearing. At intervals on the outside of the drive rod 27, a chain plate vacuum suction cup drive mechanism 29 and a tarpaulin drive wheel 30 are fixedly installed.

[0037] The drive screw rod 40 can drive the chain plate vacuum suction cup drive mechanism 29 and the tarpaulin drive wheel 30 to move horizontally. The electric telescopic cylinder 21 of the tarpaulin unloading drive mechanism can drive the chain plate vacuum suction cup drive mechanism 29 and the tarpaulin drive wheel 30 to move vertically. The drive motor 24 provides power for the rotation of the chain plate vacuum suction cup drive mechanism 29 and the tarpaulin drive wheel 30. The chain plate vacuum suction cup drive mechanism 29 is used to suck the tarpaulin products and waste, so that they are put into the waste material tank 18 and the product tank 19. When the waste is a positive film, the tarpaulin drive wheel 30 can be driven to push the tarpaulin products, so that they enter the waste material tank 18.

[0038] Please refer to Figures 3-8, the chain plate vacuum suction cup driving mechanism 29 includes a mounting chain plate 31, a vacuum suction cup 32, a second vacuum suction cup branch suction pipe 33, a second vacuum suction cup branch suction pipe valve 34, a first sprocket 35, a mounting chain plate connecting strip 37, a second sprocket 39, a second vacuum suction cup branch suction pipe limiting plate 42 and a first vacuum suction cup branch suction pipe 45. There are ten mounting chain plates 31 arranged on the outer side of the chain plate vacuum suction cup driving mechanism 29. A mounting chain plate connecting strip 37 is installed between the left and right ends of adjacent mounting chain plates 31. The mounting chain plate connecting strip 37 and the mounting chain plate 31 are rotationally connected by a connecting rod. Five vacuum suction cups 32 are equidistantly installed inside the mounting chain plate 31. The second vacuum suction cup branch suction pipe 33 is hermetically connected in series to the rear end of the vacuum suction cup 32. A first sprocket 35 and a second sprocket 39 are respectively arranged inside both sides of the chain plate vacuum suction cup driving mechanism 29. The first sprocket 35 is located on one side of the second sprocket 39. The first sprocket 35 and the second sprocket 39 are respectively key-connected to the driving rods 27 on both sides. Sprocket grooves are symmetrically opened at the left and right ends of the mounting chain plate 31, and the sprocket grooves are respectively meshed with the first sprocket 35. Six second vacuum suction cup branch suction pipe grooves 43 are annularly opened on the outer sides of the first sprocket 35 and the second sprocket 39. The second vacuum suction cup branch suction pipe 33 is movably connected to the second vacuum suction cup branch suction pipe groove 43. A second vacuum suction cup branch suction pipe limiting plate 42 is arranged on one side of the first sprocket 35. A shunt device 44 is installed on one side of the second vacuum suction cup branch suction pipe limiting plate 42. One end of the second vacuum suction cup branch suction pipe 33 is hermetically connected to one end of the shunt device 44. A second vacuum suction cup branch suction pipe valve 34 is hermetically installed on one side of the second vacuum suction cup branch suction pipe 33. One side of the shunt device 44 is hermetically connected to the first vacuum suction cup branch suction pipe 45. The other end of the first vacuum suction cup branch suction pipe 45 is hermetically connected to the filter box intake pipe 15 through the shunt device 44. Driving rod grooves 48 are symmetrically opened on both sides of the second vacuum suction cup branch suction pipe limiting plate 42. The driving rod 27 is located inside the driving rod grooves 48 and is rotationally connected through a bearing. A second vacuum suction cup branch suction pipe limiting groove 47 is opened at the middle position of the second vacuum suction cup branch suction pipe limiting plate 42. One end of the second vacuum suction cup branch suction pipe 33 passes through the inside of the second vacuum suction cup branch suction pipe limiting groove 47. A sliding block groove 49 is opened on the outer side of the second vacuum suction cup branch suction pipe limiting groove 47. Sliding blocks 46 are symmetrically installed above and below one end of the shunt device 44. The sliding blocks 46 are slidably connected to the sliding block grooves 49.

[0039] The first sprocket wheel 35 and the second sprocket wheel 39 can be driven to roll by the mounting chain plate connecting strip 37 connecting the mounting chain plates 31, thereby driving the vacuum suction cup 32 to roll. The second vacuum suction cup split suction air pipe grooves 43 of the first sprocket wheel 35 and the second sprocket wheel 39 can limit the second vacuum suction cup split suction air pipe 33, so as to realize the transmission of gas during rotation. The diverter 44 between the second vacuum suction cup split suction air pipe 33 and the first vacuum suction cup split suction air pipe 45 can rotate together with the second vacuum suction cup split suction air pipe 33, and at the same time maintain a rotationally sealed connection with the first vacuum suction cup split suction air pipe 45 while rotating.

[0040] Working principle: When in use, first convert the drawing of the product to be cut into a file format that can be recognized by the laser cutting machine and input it into the laser cutting device body 1, drag one end of the tarpaulin through the ion wind rod 6, the rear surface of the second cloth guide roller 16 and the upper surface of the first cloth guide roller 7 in turn, and then place it on the laser cutting workbench 38, and finally wrap the tarpaulin around and fix it on the surface of the cloth collection roller 17, turn on the laser cutting device body 1 for cutting, and the laser cutting device body 1 starts to cut the tarpaulin according to the predetermined path. The laser cutting workbench 38 pushes the drive frame 2 through the drag chain on its rear side, and the drive frame 2 pushes the laser fixing seat 3 through the drag chain on one side. The laser in the laser cutting device body 1 forms a high-power density laser beam, and the laser beam passes through The optical path system transmits and focuses, focusing into a point. When the high-power density laser beam irradiates the surface of the tarpaulin, the surface of the tarpaulin quickly absorbs the laser energy and converts it into heat energy, causing the surface temperature to rise rapidly. When the melting point of the tarpaulin is reached, the tarpaulin begins to melt to form a molten pool, thereby achieving cutting. The laser cutting head 8 moves along a predetermined trajectory along with the laser fixing seat 3, and the laser beam forms a continuous cutting line on the surface of the tarpaulin. While cutting, the turned-on vacuum pump 9 generates negative pressure. At this time, the air intake three-way valve 12 connects the main air intake pipe 11 and the filter box outlet pipe 13. The negative pressure draws the cut smoke into the filter box 10 through the filter box air intake pipe 15, and enters the filter box outlet pipe 13 after being filtered by the filter box 10, and then enters the vacuum pump through the main air intake pipe 11. 9 is discharged, the CCD camera 50 takes a picture of the cut image and sends it to the control unit of the laser cutting device body 1, the control unit analyzes and identifies the image processing algorithm, so as to determine whether the cut pattern is deviated or shifted. When a problem is found, the cutting operation is stopped so that the staff can adjust the fault in time, so as to prevent more unqualified tarpaulin products from being cut. After the cutting operation is completed, the CCD camera 50 observes the position of the cut tarpaulin product and the waste material. After the observation is completed, the driving screw 40 is started according to the position of the tarpaulin product to adjust the position of the electric telescopic cylinder mounting plate 41 of the tarpaulin unloading drive mechanism, and the electric telescopic cylinder mounting plate 41 of the tarpaulin unloading drive mechanism drives the electric telescopic cylinder 21 of the tarpaulin unloading drive mechanism Move horizontally, the electric telescopic cylinder 21 of the tarpaulin unloading drive mechanism drives the drive box 22 to move through the support frame 23, and the drive box 22 drives the drive rod 27 to move horizontally, so that the position of the chain plate vacuum suction cup drive mechanism 29 corresponds to the position of the tarpaulin product. At this time, adjust the air intake three-way valve 12 to connect the main air intake pipe 11 and the vacuum suction cup main suction pipe 14, start the vacuum pump 9, and the negative pressure generated by the vacuum pump 9 allows air to be sucked in from the vacuum suction cup 32, and enter the diverter 44 through the second vacuum suction cup branch suction pipe 33. The diverter 44 merges the air into the first vacuum suction cup branch suction pipe 45, and the air in the first vacuum suction cup branch suction pipe 45 is then merged into the vacuum suction cup main suction pipe 14 through the diverter 44, so that the vacuum suction cup 32 generates negative pressure.The electric telescopic cylinder 21 of the stretching tarpaulin unloading drive mechanism drives the drive box 22 to move downward, enabling the vacuum suction cup 32 to adsorb on the upper surface of the tarpaulin product, thereby fixing the tarpaulin product. At this time, the drag chain between the drive frame 2 and the laser cutting workbench 38 positions the vacuum suction cup 32 above the product slot 19. When the tarpaulin product is relatively long, the drive motor 24 can be driven. The drive motor 24 drives the driving sprocket 25 to rotate. The driving sprocket 25 drives the driven sprocket 26 to rotate through the chain 28. The driven sprocket 26 drives the drive rod 27 to rotate. The drive rod 27 drives the installation chain plate 31 to roll through the driving first sprocket 35, thereby enabling the vacuum suction cup 32 to roll. The on-off of the second vacuum suction cup sub-air pipe 33 is adjusted through the second vacuum suction cup sub-air pipe valve 34. The second vacuum suction cup sub-air pipe valve 34 can be opened when the vacuum suction cup 32 moves to the lower end of the chain plate vacuum suction cup drive mechanism 29, and can be closed when leaving the lower end of the chain plate vacuum suction cup drive mechanism 29, thereby dragging the tarpaulin product into the interior of the product slot 19. At this time, the chain plate vacuum suction cup drive mechanism 29 grabs the waste material again and drives it above the waste material slot 18. The waste material enters the waste material slot 18 through the above method. Finally, the cloth receiving roller 17 is started to drive the cloth to move forward, and subsequent cutting operations are carried out.,

[0041] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A laser cutting device for tarpaulin processing, comprising a laser cutting device body (1), characterized in that: A laser cutting workbench (38) is provided at the lower end of the laser cutting device body (1), a driving frame (2) is slidably mounted above the laser cutting device body (1), a laser fixing seat (3) is slidably mounted above the driving frame (2), a tarpaulin unloading driving mechanism (36) is installed below the rear side of the driving frame (2), a waste trough (18) is provided at the rear end of the laser cutting workbench (38), a product trough (19) is provided at the rear side of the waste trough (18), and the tarpaulin unloading driving mechanism (36) comprises a tarpaulin unloading driving mechanism electric telescopic cylinder (21), a driving box (22), a supporting frame (23), a driving motor (24), a driving sprocket (25), a driven sprocket (26), a driving rod (2 7), a chain (28), a chain plate vacuum suction cup drive mechanism (29), a tarpaulin drive wheel (30), a drive screw (40) and a tarpaulin unloading drive mechanism electric telescopic cylinder mounting plate (41), the lower end of the drive frame (2) is provided with a tarpaulin unloading drive mechanism electric telescopic cylinder groove (20), the upper end of the inner wall of the tarpaulin unloading drive mechanism electric telescopic cylinder groove (20) is mounted with a drive screw (40), two tarpaulin unloading drive mechanism electric telescopic cylinder mounting plates (41) are symmetrically and transmission-mounted below the drive screw (40), the tarpaulin unloading drive mechanism electric telescopic cylinder (21) is symmetrically and fixedly mounted below the tarpaulin unloading drive mechanism electric telescopic cylinder mounting plate (41), the tarpaulin unloading drive mechanism electric telescopic cylinder ( A drive box (22) is installed below the tarpaulin unloading drive mechanism (21), support frames (23) are fixedly installed on both sides of the drive box (22), the support frame (23) is fixedly connected to the lower end of the electric telescopic cylinder (21) of the tarpaulin unloading drive mechanism, the upper end of the electric telescopic cylinder (21) of the tarpaulin unloading drive mechanism is fixedly connected to the inner wall of the electric telescopic cylinder slot (20) of the tarpaulin unloading drive mechanism, a drive motor (24) is fixedly installed on one side of the support frame (23), a driving sprocket (25) and a driven sprocket (26) are installed inside the drive box (22), the driving sprocket (25) is located above the driven sprocket (26), the driving sprocket (25) and the driven sprocket (26) are connected to each other through a chain (28), and the driving sprocket (25) and the driven sprocket (26) are connected to each other through a chain (28). The output end of the motor (24) is connected to the driving sprocket (25) in a transmission manner. A driving rod (27) is installed between the two driving boxes (22). The driven sprocket (26) is fixedly sleeved on the outside of one end of the driving rod (27). The driven sprocket (26) is rotatably connected to the driving box (22) via a bearing. A chain plate vacuum suction cup driving mechanism (29) and a tarpaulin driving wheel (30) are fixedly installed at intervals on the outside of the driving rod (27). The chain plate vacuum suction cup driving mechanism (29) is used to absorb the tarpaulin product and waste materials, so that they are put into the waste trough (18) and the product trough (19). When the waste materials are whole pieces, the tarpaulin driving wheel (30) is driven to push the tarpaulin product, so that it enters the waste trough (18).

2. The laser cutting device for tarpaulin processing according to claim 1, characterized in that: The rear side of the driving frame (2) is slidably connected to the laser cutting workbench (38) via a drag chain, and the rear side of the laser fixing seat (3) is slidably connected to the driving frame (2) via a drag chain.

3. The laser cutting device for tarpaulin processing according to claim 1, characterized in that: A vacuum pump (9) is fixedly mounted at a middle position above the laser fixing seat (3), a filter box (10) is mounted on one side of the vacuum pump (9), a main air intake pipe (11) is sealably mounted on the air intake end of the vacuum pump (9), and an air intake three-way valve (12) is sealably mounted on one end of the main air intake pipe (11) away from the vacuum pump (9).

4. The laser cutting device for tarpaulin processing according to claim 3, characterized in that: A smoke shield (4) is fixedly mounted on the outer end below the laser fixing seat (3); a laser cutting head (8) is mounted at a middle position below the laser fixing seat (3); the laser cutting head (8) is located inside the smoke shield (4); a CCD camera (50) is mounted on the front side of the smoke shield (4); a filter box air outlet pipe (13) is sealably mounted above the filter box (10); the upper end of the filter box air outlet pipe (13) is sealably connected to one end of an air intake three-way valve (12); a vacuum suction cup main air intake pipe (14) is sealably mounted on the other end of the air intake three-way valve (12); and the smoke shield (4) is sealably connected to the lower end of the filter box (10) via a filter box air intake pipe (15).

5. The laser cutting device for tarpaulin processing according to claim 1, characterized in that: A cloth rolling roller (5) is rotatably mounted on the lower end of the front side of the laser cutting workbench (38); an ion wind rod (6) is mounted above the cloth rolling roller (5); a second cloth guide roller (16) is mounted above the ion wind rod (6); a first cloth guide roller (7) is mounted above the second cloth guide roller (16); the first cloth guide roller (7) is rotatably connected to the second cloth guide roller (16); and a cloth collecting roller (17) is rotatably mounted on the lower end of the rear side of the laser cutting workbench (38).

6. The laser cutting device for tarpaulin processing according to claim 5, characterized in that: The chain plate vacuum suction cup drive mechanism (29) comprises a mounting chain plate (31), a vacuum suction cup (32), a second vacuum suction cup sub-suction pipe (33), a second vacuum suction cup sub-suction pipe valve (34), a first sprocket (35), a mounting chain plate connecting strip (37), a second sprocket (39), a second vacuum suction cup sub-suction pipe limit plate (42) and a first vacuum suction cup sub-suction pipe (45). Ten mounting chain plates (31) are arranged on the outside of the chain plate vacuum suction cup drive mechanism (29). A mounting chain plate connecting strip (37) is arranged between the left and right ends of adjacent mounting chain plates (31). The mounting chain plate connecting strip (37) is rotatably connected to the mounting chain plate (31) via a connecting rod. Five vacuum suction cups (32) are equidistantly arranged inside the mounting chain plate (31). The rear end of the vacuum suction cup (32) is sealed and connected in series with a second vacuum suction cup sub-suction pipe (33); a first sprocket (35) and a second sprocket (39) are respectively arranged inside the two sides of the chain plate vacuum suction cup drive mechanism (29); the first sprocket (35) is located on one side of the second sprocket (39); the first sprocket (35) and the second sprocket (39) are respectively key-connected to the drive rods (27) on the two sides; sprocket grooves are symmetrically provided at the left and right ends of the mounting chain plate (31); the sprocket grooves are respectively meshed and connected with the first sprocket (35); six second vacuum suction cup sub-suction pipe grooves (43) are annularly provided on the outer sides of the first sprocket (35) and the second sprocket (39); the second vacuum suction cup sub-suction pipe (33) is movably connected to the second vacuum suction cup sub-suction pipe groove (43).

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