Liquefied gas cylinder production laser cutting device

Abstract

The application belongs to the technical field of liquefied gas cylinder production, in particular to a laser cutting device for liquefied gas cylinder production, comprising two conveying plates, a first cutting gun is fixed on one side of the first pressing plate, a second cutting gun is slidably arranged on one side of the connecting frame, the first cutting gun and the second cutting gun are used for cutting the first bottle body, a transmission device is arranged on one side of the fixed box, the transmission device is used for driving the driving wheel to rotate, and two conveying plates are provided with collecting boxes on one side; the first bottle body can be rotated by the driving wheel after being transported by the conveying belt, and the first bottle body is laser cut, the cuttings and waste of the first bottle body can be conveyed to one side by the conveying belt and the transmission roller, the cutting process of the liquefied gas cylinder can be simplified, the first bottle body can be directly processed without being transported after being conveyed to the processing area, the cuttings and waste generated after cutting can be directly recycled, and the working efficiency of laser cutting of the liquefied gas cylinder is improved.

Description

Technical Field

[0001] This invention belongs to the field of liquefied petroleum gas (LPG) cylinder production technology, specifically a laser cutting device for LPG cylinder production. Background Technology

[0002] When producing liquefied petroleum gas (LPG) cylinders, the top, body, and bottom need to be processed separately. Then, the top, body, and bottom are welded together. The welded LPG cylinder is then transferred to the subsequent processing area. When making the top, the steel plate is stamped into shape using a stamping machine. The stamped top is then transferred to the cutting area, where it is trimmed and laser-cut to facilitate subsequent welding. Since the top needs to connect to the inlet valve and some other pressure devices, the connection port is also cut out on the top using laser cutting. After cutting the top, it is transferred for further processing.

[0003] A patent with publication number CN217859424U discloses a laser cutting device for stainless steel cylinders, including a worktable. A fixing block is fixedly connected inside the mounting plate, and a fixing sleeve is fixedly connected to the output end of the rear fixed rod. The fixing sleeve is adapted to a gear. This laser cutting device for stainless steel cylinders is beneficial for limiting the threaded rod and preventing it from disengaging from the locking mechanism. It is also beneficial for fixing the fixing block and the fixing sleeve, and facilitates the movement of the fixed block by the moving cylinder, thereby moving the laser cutting head to cut the cylinder.

[0004] The above-mentioned method involves a rather cumbersome production process for liquefied petroleum gas (LPG) cylinders. It requires transporting the cylinder top to a cutting table for trimming and cutting, then transporting it to another cutting table to cut out the inlet valve. After cutting, the cylinder top is transported out of the cutting table, and the debris and waste from the cutting table are cleaned and recycled. This reduces the production efficiency of LPG cylinders, and the cumbersome production process results in higher energy consumption and time requirements.

[0005] Therefore, the present invention provides a laser cutting device for the production of liquefied petroleum gas cylinders. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this invention to solve its technical problem is as follows: A laser cutting device for producing liquefied petroleum gas cylinders, comprising two conveyor plates, two drive rollers connected between the two conveyor plates, a conveyor belt between the two drive rollers for transporting a first cylinder, two hydraulic cylinders on each side of the two conveyor plates, a transmission platform fixed between the two hydraulic cylinders, multiple transmission rollers rotatably connected between the two transmission platforms, first transmission rods rotatably connected to each side of the two transmission platforms, both first transmission rods being in close contact with the conveyor belt, and teeth being provided at one end of each of the two first transmission rods and one end of each transmission roller. The first transmission rod is engaged with the transmission rollers on both sides. A chain is engaged between the multiple transmission rollers. A first pressing plate and a second pressing plate are rotatably connected to one side of each of the two transmission platforms. A first cutting gun is fixed to one side of the first pressing plate, and a connecting frame is fixed to one side of the second pressing plate. A second cutting gun is slidably arranged on one side of the connecting frame. The first and second cutting guns are used to cut the first bottle. A fixed box is slidably connected to one side of the transmission platform. A transmission device is provided on one side of the fixed box. A drive wheel is rotatably connected to one side of the fixed box. The transmission device is used to drive the drive wheel to rotate. A collection box is provided on one side of each of the two conveyor plates.

[0008] Preferably, support rollers are rotatably connected between the two conveyor plates on both sides of the transmission table, and one side of the collection box is in close contact with one side of the conveyor belt.

[0009] Preferably, both sides of the two conveyor plates are fixedly connected to fixed rods, both sides of the two drive rollers are slidably connected to the two fixed rods, and one side of each of the multiple fixed rods is fitted with a first spring. One end of the multiple first springs is fixedly connected to the drive rollers, and the other end of the multiple first springs is fixedly connected to the conveyor plates.

[0010] Preferably, the transmission device further includes a fixed cylinder rotatably connected to one side of the transmission platform, a sliding rod slidably connected inside the fixed cylinder, a first bevel gear fixedly connected to one end of the sliding rod, a second bevel gear fixedly connected to one end of the drive wheel, the second bevel gear being fixedly connected to the drive wheel, the first bevel gear and the second bevel gear being meshed together, and the fixed cylinder being connected to one of the transmission rollers via a belt drive.

[0011] Preferably, a fourth spring is sleeved on one side of the sliding rod, one end of the fourth spring is fixedly connected to the fixed cylinder, and the other end of the fourth spring is fixedly connected to the sliding rod. A limit is provided between the sliding rod and the fixed cylinder, and the sliding rod can rotate with the fixed cylinder and slide inside the fixed cylinder.

[0012] Preferably, two telescopic rods are fixedly connected to one side of the first pressing plate. One end of each of the two telescopic rods is rotatably connected to a roller. A third spring is sleeved on one side of each of the two telescopic rods. One end of each of the two third springs is fixedly connected to the first pressing plate, and the other end of each of the two third springs is fixedly connected to the side of the telescopic rod near the roller.

[0013] Preferably, a cylinder is fixedly connected to one side of the first pressing plate, a pressing block is fixedly connected to the output end of the cylinder, and a fixing column is fixedly connected to one side of the first pressing plate located on the side of the pressing block.

[0014] Preferably, a rotating box is rotatably connected to one side of the connecting frame, a bidirectional motor is fixedly connected inside the rotating box, threaded rods are fixedly connected to both sides of the bidirectional motor, and sliding cylinders are slidably connected to both sides of the rotating box. The second cutting gun is fixedly connected to the sliding cylinder on one side.

[0015] Preferably, a sliding frame is slidably connected to one side of the sliding cylinder, and two grinding rollers are rotatably connected to one side of the sliding frame. A torsion spring is sleeved between the two grinding rollers, and the two ends of the torsion spring are respectively fixed to the two grinding rollers.

[0016] Preferably, a connecting rod is fixedly connected inside the sliding frame, a second spring is sleeved on one side of the connecting rod, one end of the second spring is fixedly connected to the sliding cylinder, the other end of the second spring is fixedly connected to the sliding frame, and a ball is rotatably arranged on the lower side of the sliding frame.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. The laser cutting device for producing liquefied petroleum gas (LPG) cylinders of the present invention can perform laser cutting on the first cylinder after it is transported by a conveyor belt and driven by a drive wheel. The debris and waste generated after the first cylinder is cut can be transported to one side by the conveyor belt and drive roller, which simplifies the cutting process of LPG cylinders. After the first cylinder is transported to the processing area, it can be processed directly without transfer, and the debris and waste generated after cutting can be directly recycled, thus speeding up the work efficiency of laser cutting of LPG cylinders.

[0019] 2. In the laser cutting device for producing liquefied gas cylinders described in this invention, when the first transmission rod presses down on the conveyor belt, the conveyor belt will bring the drive rollers on both sides closer to each other. The drive rollers slide on the fixed rod and stretch the first spring, and the first spring is always in a stretched state, so that the conveyor belt can always be kept taut. Also, when the first transmission rod presses down on the conveyor belt, the drive rollers can drive the conveyor belt and cause it to deform without being damaged by the pressing. The conveyor belt is supported by the support rollers so that the conveyor belt can always be kept on a plane, so that the conveyor belt can better transport the first cylinder for processing. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the drive roller structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the transmission table structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the pressing block structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the telescopic rod structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the fixing box structure of the present invention;

[0027] Figure 7 This is a schematic diagram of the fixed cylinder structure of the present invention;

[0028] Figure 8 This is a schematic diagram of the fixed column structure of the present invention;

[0029] Figure 9 This is a schematic diagram of the sliding cylinder structure of the present invention;

[0030] In the diagram: 1. Conveyor plate; 2. Conveyor belt; 3. Hydraulic cylinder; 4. Collection box; 5. Drive roller; 6. Fixed rod; 7. First spring; 9. Connecting frame; 11. First bottle body; 12. Transmission table; 13. Transmission roller; 14. Support roller; 15. First pressing plate; 16. Second pressing plate; 17. Cylinder; 18. First cutting gun; 19. Rotating box; 21. Sliding cylinder; 22. Second cutting gun; 23. Bidirectional motor; 24. 25. Threaded rod; 26. Sliding frame; 27. Connecting rod; 28. Second spring; 29. ​​Ball bearing; 30. Grinding roller; 31. Torsion spring; 32. Telescopic rod; 33. Third spring; 34. Roller; 35. First transmission rod; 36. Chain; 37. Fixed cylinder; 38. Drive wheel; 39. Fourth spring; 40. Sliding rod; 41. Pressing block; 42. Fixed column; 43. First bevel gear; 44. Second bevel gear; 45. Fixed box. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments. Example 1

[0032] like Figures 1 to 9As shown in the embodiment of the present invention, a laser cutting device for producing liquefied petroleum gas cylinders includes two conveyor plates 1, two drive rollers 5 connected between the two conveyor plates 1, and a conveyor belt 2 between the two drive rollers 5 for transporting a first cylinder 11. Two hydraulic cylinders 3 are provided on both sides of each of the two conveyor plates 1, and a transmission platform 12 is fixedly connected between the two hydraulic cylinders 3. Multiple transmission rollers 13 are rotatably connected between the two transmission platforms 12. First transmission rods 34 are rotatably connected to both sides of each of the two transmission platforms 12. Both first transmission rods 34 are in close contact with the conveyor belt 2. One end of each of the two first transmission rods 34 and one end of each transmission roller 13 are provided with teeth. The two first transmission rods 34 respectively interact with the transmission rollers 13 on both sides. The moving rollers 13 are meshed together, and a chain 36 is meshed between multiple transmission rollers 13. A first pressing plate 15 and a second pressing plate 16 are rotatably connected to one side of the two transmission tables 12 respectively. A first cutting gun 18 is fixedly connected to one side of the first pressing plate 15, and a connecting frame 9 is fixedly connected to one side of the second pressing plate 16. A second cutting gun 22 is slidably arranged on one side of the connecting frame 9. The first cutting gun 18 and the second cutting gun 22 are used to cut the first bottle body 11. A fixed box 45 is slidably connected to one side of the transmission table 12. A transmission device is provided on one side of the fixed box 45. A drive wheel 38 is rotatably connected to one side of the fixed box 45. The transmission device is used to drive the drive wheel 38 to rotate. A collection box 4 is provided on one side of the two conveyor plates 1.

[0033] Specifically, the production of liquefied petroleum gas (LPG) cylinders requires separate processing of the top, body, and bottom. These components are then welded together, and the welded LPG cylinders are transferred to subsequent processing areas. When manufacturing the top, steel plates are stamped using a stamping machine. The stamped top is then transferred to a cutting area for trimming and laser cutting to facilitate subsequent welding. Since the top needs to connect to the inlet valve and other pressure devices, laser cutting is used to create the connection points. After cutting the top, it is transferred to another cutting area, and debris and waste from the cutting table are cleaned. This production process is quite cumbersome, requiring the top to be transferred to a cutting table for trimming and cutting, then to another cutting table to cut the inlet valve, and finally transferred back to the cutting table for cleaning and recycling debris and waste. This reduces the production efficiency of LPG cylinders, and the production process requires significant energy and time.

[0034] In this example, the first bottle 11 is the bottle top. The first bottle 11 is placed on the conveyor belt 2. The hydraulic cylinder 3 is activated, moving the transmission platform 12 downwards, causing the first transmission rod 34 to press down against the conveyor belt 2. The drive roller 5 is activated, causing the conveyor belt 2 to rotate and transfer the first bottle 11 onto the transmission rollers 13 between the transmission platforms 12. The conveyor belt 2 then rotates the first transmission rod 34, causing the transmission rollers 13 on both sides to rotate. The chain 36 then causes multiple transmission rollers 13 to rotate together, allowing the first bottle 11 to move smoothly. The drive roller 5 is stopped from rotating onto the transmission roller 13. The first pressing plate 15 and the second pressing plate 16 are rotated to press the first bottle body 11 onto the transmission roller 13. The drive wheel 38 is brought into contact with the first bottle body 11 by the sliding fixing box 45. At this time, the drive roller 5 is restarted to rotate the drive wheel 38 through the transmission device. The first bottle body 11 is rotated by the drive wheel 38. The first cutting gun 18 is started to perform laser cutting and trimming on the bottom edge of the first bottle body 11. The second cutting gun 22 is started to laser cut the top of the first bottle body 11. 1. An opening is made. The first cutting gun 18 and the second cutting gun 22 are both laser cutting heads, and one end of each is connected to the laser cutting machine. After the first bottle body 11 is cut, the first pressing plate 15 and the second pressing plate 16 are rotated to stop pressing the first bottle body 11. At this time, the rotation of the transmission roller 13 moves the first bottle body 11 out of the transmission table 12 and transfers it to the other side of the conveyor belt 2 for subsequent transfer processing. The debris and waste generated after cutting the first bottle body 11 are conveyed by the conveyor belt 2 to... The first bottle 11 can be recycled in the collection box 4 on one side; after being transferred by the conveyor belt 2, the first bottle 11 can be rotated by the drive wheel 38 to perform laser cutting. The debris and waste generated after the first bottle 11 is cut can be transferred to one side by the conveyor belt 2 and the drive roller 13, which simplifies the cutting process of liquefied gas cylinders. After the first bottle 11 is transferred to the processing area, it can be processed directly without transfer, and the debris and waste generated after cutting can be directly recycled, which speeds up the work efficiency of laser cutting of liquefied gas cylinders.

[0035] like Figures 1 to 9 As shown, support rollers 14 are rotatably connected between the two conveyor plates 1 on both sides of the transmission table 12, and one side of the collection box 4 is in close contact with one side of the conveyor belt 2.

[0036] Specifically, when the first transmission rod 34 presses down on the conveyor belt 2, the conveyor belt 2 will be supported by the support roller 14 so that the conveyor belt 2 can always be kept on a plane, so that the conveyor belt 2 can better transport the first bottle 11 for processing.

[0037] like Figures 1 to 9As shown, two conveyor plates 1 are fixedly connected to two fixed rods 6 on both sides, two drive rollers 5 are slidably connected to two fixed rods 6 on both sides, and a first spring 7 is sleeved on one side of multiple fixed rods 6. One end of multiple first springs 7 is fixedly connected to drive rollers 5, and the other end of multiple first springs 7 is fixedly connected to conveyor plates 1.

[0038] Specifically, when the first transmission rod 34 presses down on the conveyor belt 2, the conveyor belt 2 will bring the drive rollers 5 on both sides closer to each other. The drive rollers 5 slide on the fixed rod 6 and stretch the first spring 7. The first spring 7 is always in a stretched state, so that when the first transmission rod 34 presses down on the conveyor belt 2, the drive rollers 5 can drive the conveyor belt 2 and keep the conveyor belt 2 in a taut state.

[0039] like Figures 1 to 9 As shown, the transmission device also includes a fixed cylinder 37 rotatably connected in a transmission platform 12 on one side. A sliding rod 40 is slidably connected in the fixed cylinder 37. A first bevel gear 43 is fixedly connected to one end of the sliding rod 40, and a second bevel gear 44 is fixedly connected to one end of the drive wheel 38. The second bevel gear 44 is fixedly connected to the drive wheel 38. The first bevel gear 43 and the second bevel gear 44 are meshed together. The fixed cylinder 37 is connected to a transmission roller 13 via a belt drive.

[0040] Specifically, when the drive wheel 38 is driven to rotate by the transmission device, the rotation of the transmission roller 13 drives the fixed cylinder 37 to rotate via the belt. The rotation of the fixed cylinder 37 causes the sliding rod 40 to rotate. The rotation of the sliding rod 40 causes the drive wheel 38 to rotate via the first bevel gear 43 and the second bevel gear 44. Thus, the drive wheel 38 is driven to rotate by the transmission of the conveyor belt 2.

[0041] like Figures 1 to 9 As shown, a fourth spring 39 is sleeved on one side of the sliding rod 40. One end of the fourth spring 39 is fixedly connected to the fixed cylinder 37, and the other end of the fourth spring 39 is fixedly connected to the sliding rod 40. A limit is provided between the sliding rod 40 and the fixed cylinder 37, so that the sliding rod 40 can rotate with the fixed cylinder 37 and slide inside the fixed cylinder 37.

[0042] Specifically, when the drive wheel 38 is in close contact with the first bottle body 11 and drives the first bottle body 11 to rotate, the first bottle body 11 pushes the drive wheel 38 to move the fixed box 45, and the fixed box 45 moves the sliding rod 40 to slide inside the fixed cylinder 37, and compresses the fourth spring 39 so that the drive wheel 38 can be in close contact with the surface of the first bottle body 11. In this way, the sliding rod 40 can slide inside the fixed cylinder 37 and also rotate with the fixed cylinder 37.

[0043] like Figures 1 to 9As shown, two telescopic rods 31 are fixedly connected to one side of the first pressing plate 15. One end of each telescopic rod 31 is rotatably connected to a roller 33. A third spring 32 is sleeved on one side of each telescopic rod 31. One end of each third spring 32 is fixedly connected to the first pressing plate 15, and the other end of each third spring 32 is fixedly connected to the side of the telescopic rod 31 near the roller 33.

[0044] Specifically, when the first pressing plate 15 rotates and presses to fix the first bottle body 11, the first bottle body 11 presses against the roller 33, causing the roller 33 to slide within the first pressing plate 15. The third spring 32 is compressed by the telescopic rod 31, causing the roller 33 to be tightly attached to the first bottle body 11. When the drive wheel 38 drives the first bottle body 11 to rotate, the first bottle body 11 will rotate through the roller 33. The rotation of the first bottle body 11 by the cooperation of the drive wheel 38 and the roller 33 reduces the scratches and damage to the side wall of the first bottle body 11.

[0045] like Figures 1 to 9 As shown, a cylinder 17 is fixedly connected to one side of the first pressing plate 15, a pressing block 41 is fixedly connected to the output end of the cylinder 17, and a fixing post 42 is fixedly connected to one side of the first pressing plate 15 located on the side of the pressing block 41.

[0046] Specifically, after the first cutting gun 18 cuts and trims the first bottle 11, the cylinder 17 is activated to move the pressing block 41 downward. The pressing block 41 is an arc-shaped inclined block, which can press the excess waste material onto the fixed post 42 and wrap it around the fixed post 42. This allows for the initial collection of the waste material generated after cutting the first bottle 11, which is convenient for subsequent recycling and utilization of the waste material. Example 2

[0047] like Figures 1 to 9 As shown in Example 1, another embodiment of the present invention is as follows:

[0048] A rotating box 19 is rotatably connected to one side of the connecting frame 9. A bidirectional motor 23 is fixedly connected inside the rotating box 19. Threaded rods 24 are fixedly connected to both sides of the bidirectional motor 23. Sliding cylinders 21 are slidably connected to both sides of the rotating box 19. The second cutting gun 22 is fixedly connected to the sliding cylinder 21 on one side.

[0049] Specifically, when cutting the top of the first bottle 11, the bidirectional motor 23 is started to rotate the threaded rod 24, so that the sliding cylinder 21 slides in the rotating box 19, thereby adjusting the distance of the second cutting gun 22 to cut the air inlet of the required size.

[0050] like Figures 1 to 9 As shown, a sliding frame 25 is slidably connected to one side of the sliding cylinder 21, and two grinding rollers 29 are rotatably connected to one side of the sliding frame 25. A torsion spring 30 is sleeved between the two grinding rollers 29, and the two ends of the torsion spring 30 are respectively fixed to the two grinding rollers 29.

[0051] Specifically, after the top of the first bottle 11 is cut, the rotating box 19 is rotated through the connecting frame 9 to move the sliding frame 25 to the cut position of the first bottle 11. The first bottle 11 is rotated and the cut position of the first bottle 11 is polished by the polishing roller 29 so that the top of the first bottle 11 can be welded to the air inlet valve later. The two polishing rollers 29 are pressed against the cut position of the first bottle 11 and the torsion spring 30 makes the two polishing rollers 29 stick tightly to the first bottle 11 for polishing.

[0052] like Figures 1 to 9 As shown, a connecting rod 26 is fixedly connected inside the sliding frame 25. A second spring 27 is sleeved on one side of the connecting rod 26. One end of the second spring 27 is fixedly connected to the sliding cylinder 21, and the other end of the second spring 27 is fixedly connected to the sliding frame 25. A ball bearing 28 is rotatably arranged on the lower side of the sliding frame 25.

[0053] Specifically, when the sliding frame 25 moves to the cutting point of the first bottle 11, the sliding frame 25 will move towards the first bottle 11 with the ball 28. The ball 28 presses against the first bottle 11, causing the sliding frame 25 to move upward through the connecting rod 26 and compress the second spring 27, so that the polishing roller 29 can move smoothly to the cutting point of the first bottle 11 for polishing.

[0054] Working principle: The first bottle 11 is placed on the conveyor belt 2. The hydraulic cylinder 3 is activated, which moves the transmission platform 12 downwards, causing the first transmission rod 34 to press down on the conveyor belt 2. The drive roller 5 is activated, causing the conveyor belt 2 to rotate and transfer the first bottle 11 to the transmission roller 13 between the transmission platforms 12. The transmission belt 2 drives the first transmission rod 34 to rotate, which in turn causes the transmission rollers 13 on both sides to rotate. Then, the chain 36 causes multiple transmission rollers 13 to rotate together, allowing the first bottle 11 to move smoothly to the transmission roller 13. Stop the drive roller 5 from rotating, rotate the first pressing plate 15 and the second pressing plate 16 to press the first bottle 11 onto the transmission roller 13, and use the sliding fixing box 45 to make the drive wheel 38 fit against the first bottle 11. At this time, start the drive roller 5 again to make the drive wheel 38 rotate through the transmission device, so that the first bottle 11 can be rotated by the drive wheel 38. Start the first cutting gun 18 to perform laser cutting trimming on the bottom edge of the first bottle 11, and start the sliding cylinder 21 to laser cut the top of the first bottle 11. The opening is designed so that both the first cutting gun 18 and the sliding cylinder 21 are laser cutting heads, and one end of each is connected to the cutting machine. After the first bottle 11 is cut, the first pressing plate 15 and the second pressing plate 16 are rotated to stop pressing the first bottle 11. At this time, the rotation of the transmission roller 13 causes the first bottle 11 to move out of the transmission table 12 and be transferred to the other side of the conveyor belt 2 for subsequent transfer processing. The debris and waste generated after cutting the first bottle 11 are conveyed by the conveyor belt 2 to a collection point on one side. The first bottle 11 can be laser-cut by rotating the first bottle 11 via the drive wheel 38 after being transferred by the conveyor belt 2. The debris and waste generated after the first bottle 11 is cut can be transferred to one side by the conveyor belt 2 and the drive roller 13. This simplifies the cutting process of the liquefied gas cylinder. After the first bottle 11 is transferred to the processing area, it can be processed directly without transfer. The debris and waste generated after cutting can be directly recycled, which speeds up the work efficiency of laser cutting of liquefied gas cylinders.

[0055] When the first transmission rod 34 presses down on the conveyor belt 2, the conveyor belt 2 is supported by the support roller 14, ensuring that the conveyor belt 2 remains on a single plane, allowing it to better transport the first bottle 11 for processing. When the first transmission rod 34 presses down on the conveyor belt 2, the conveyor belt 2 pulls the drive rollers 5 on both sides closer together. The drive rollers 5 slide on the fixed rod 6 and stretch the first spring 7, which remains stretched, keeping the conveyor belt taut. This also allows the drive rollers to drive the conveyor belt and prevent deformation due to the pressure. When the drive wheel 38 is driven to rotate via the transmission device, the rotation of the transmission roller 13 drives the fixed cylinder 37 to rotate via the belt. The rotation of the fixed cylinder 37 causes the sliding rod 40 to rotate, which in turn drives the drive wheel 38 via the first bevel gear 43 and the second bevel gear 44. Thus, the drive wheel is driven by the transmission of the conveyor belt 2. 38 rotates; when the drive wheel 38 is close to the first bottle body 11 and drives the first bottle body 11 to rotate, the first bottle body 11 pushes the drive wheel 38 to move the fixed box 45, and the fixed box 45 moves the sliding rod 40 to slide in the fixed cylinder 37, and compresses the fourth spring 39 so that the drive wheel 38 can be close to the surface of the first bottle body 11. In this way, the sliding rod 40 can slide in the fixed cylinder 37 and also rotate with the fixed cylinder 37; when the first pressing plate 15 rotates to press and fix the first bottle body 11, the first bottle body 11 presses against the roller 33 to make the roller 33 slide in the first pressing plate 15, and compresses the third spring 32 through the telescopic rod 31, so that the roller 33 is close to the first bottle body 11. When the drive wheel 38 drives the first bottle body 11 to rotate, the first bottle body 11 will rotate through the roller 33. The drive wheel 38 and the roller 33 cooperate to make the first bottle body 11 rotate, reducing the scratches and damage to the side wall of the first bottle body 11;

[0056] After the first cutting gun 18 trims the first bottle body 11, the cylinder 17 is activated to move the pressing block 41 downwards. The pressing block 41 is an arc-shaped inclined block, which can press the excess waste onto the fixed post 42 and wrap it around the fixed post 42, thus initially collecting the waste generated after cutting the first bottle body 11, which is convenient for subsequent recycling and utilization. When cutting the top of the first bottle body 11, the bidirectional motor 23 is activated to rotate the threaded rod 24, causing the sliding cylinder 21 to slide within the rotating box 19, thereby adjusting the distance of the second cutting gun 22 to cut the air inlet of the required size. After the top of the first bottle body 11 is cut, the rotating box 19 is rotated via the connecting frame 9 to move the sliding cylinder 21. The frame 25 moves to the cut of the first bottle 11, and rotates the first bottle 11 to grind the cut of the first bottle 11 by the grinding roller 29 so that the top of the first bottle 11 can be welded to the air inlet valve later. The two grinding rollers 29 press against the cut of the first bottle 11 and are pressed tightly against the first bottle 11 by the torsion spring 30. When the sliding frame 25 moves to the cut of the first bottle 11, the sliding frame 25 will move towards the first bottle 11 with the ball 28. The ball 28 presses against the first bottle 11, causing the sliding frame 25 to move upward through the connecting rod 26 and compress the second spring 27, so that the grinding roller 29 can move smoothly to the cut of the first bottle 11 for grinding.

[0057] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser cutting device for producing liquefied petroleum gas cylinders, characterized in that: It includes two conveyor plates (1), two drive rollers (5) are connected between the two conveyor plates (1), a conveyor belt (2) is provided between the two drive rollers (5), the conveyor belt (2) is used to transfer the first bottle (11), two hydraulic cylinders (3) are provided on both sides of the two conveyor plates (1), a transmission table (12) is fixed between the two hydraulic cylinders (3), a plurality of transmission rollers (13) are rotatably connected between the two transmission tables (12), a first transmission rod (34) is rotatably connected on both sides of the two transmission tables (12), the two first transmission rods (34) are in close contact with the conveyor belt (2), one end of the two first transmission rods (34) and one end of the transmission rollers (13) are provided with teeth, the two first transmission rods (34) are respectively meshed with the transmission rollers (13) on both sides, and a chain (36) is meshed between the plurality of transmission rollers (13). One pressing plate (15) and a second pressing plate (16) are rotatably connected to one side of the two transmission platforms (12). A first cutting gun (18) is fixed to one side of the first pressing plate (15), and a connecting frame (9) is fixed to one side of the second pressing plate (16). A second cutting gun (22) is slidably arranged on one side of the connecting frame (9). The first cutting gun (18) and the second cutting gun (22) are used to cut the first bottle body (11). A fixed box (45) is slidably connected to one side of the transmission platform (12). A transmission device is provided on one side of the fixed box (45). A drive wheel (38) is rotatably connected to one side of the fixed box (45). The transmission device is used to drive the drive wheel (38) to rotate. A collection box (4) is provided on one side of the two conveyor plates (1). Support rollers (14) are rotatably connected between the two conveyor plates (1) on both sides of the transmission table (12), and one side of the collection box (4) is in close contact with one side of the conveyor belt (2); Two conveyor plates (1) are fixedly connected to two fixed rods (6) on both sides. Two drive rollers (5) are slidably connected to two fixed rods (6) on both sides. A first spring (7) is sleeved on one side of multiple fixed rods (6). One end of multiple first springs (7) is fixedly connected to drive rollers (5), and the other end of multiple first springs (7) is fixedly connected to conveyor plates (1). Two telescopic rods (31) are fixedly connected to one side of the first pressing plate (15). One end of each of the two telescopic rods (31) is rotatably connected to a roller (33). A third spring (32) is sleeved on one side of each of the two telescopic rods (31). One end of each of the two third springs (32) is fixedly connected to the first pressing plate (15), and the other end of each of the two third springs (32) is fixedly connected to the side of the telescopic rod (31) near the roller (33). A cylinder (17) is fixedly connected to one side of the first pressing plate (15), and a pressing block (41) is fixedly connected to the output end of the cylinder (17). A fixing column (42) is fixedly connected to one side of the first pressing plate (15) on the side of the pressing block (41).

2. The laser cutting device for producing liquefied petroleum gas cylinders according to claim 1, characterized in that: The transmission device further includes a fixed cylinder (37) rotatably connected to the transmission platform (12) on one side. A sliding rod (40) is slidably connected inside the fixed cylinder (37). A first bevel gear (43) is fixedly connected to one end of the sliding rod (40), and a second bevel gear (44) is fixedly connected to one end of the drive wheel (38). The second bevel gear (44) is fixedly connected to the drive wheel (38). The first bevel gear (43) and the second bevel gear (44) are meshed together. The fixed cylinder (37) is connected to one of the transmission rollers (13) via a belt drive.

3. The laser cutting device for producing liquefied petroleum gas cylinders according to claim 2, characterized in that: A fourth spring (39) is sleeved on one side of the sliding rod (40). One end of the fourth spring (39) is fixedly connected to the fixed cylinder (37), and the other end of the fourth spring (39) is fixedly connected to the sliding rod (40). A limit is provided between the sliding rod (40) and the fixed cylinder (37). The sliding rod (40) can rotate with the fixed cylinder (37) and slide inside the fixed cylinder (37).

4. The laser cutting device for producing liquefied petroleum gas cylinders according to claim 1, characterized in that: The connecting frame (9) is rotatably connected to a rotating box (19) on one side. A bidirectional motor (23) is fixedly connected inside the rotating box (19). Threaded rods (24) are fixedly connected to both sides of the bidirectional motor (23). Sliding cylinders (21) are slidably connected to both sides of the rotating box (19). The second cutting gun (22) is fixedly connected to the sliding cylinder (21) on one side.

5. The laser cutting device for producing liquefied petroleum gas cylinders according to claim 4, characterized in that: A sliding frame (25) is slidably connected to one side of the sliding cylinder (21). Two grinding rollers (29) are rotatably connected to one side of the sliding frame (25). A torsion spring (30) is sleeved between the two grinding rollers (29). The two ends of the torsion spring (30) are respectively fixed to the two grinding rollers (29).

6. The laser cutting device for producing liquefied petroleum gas cylinders according to claim 5, characterized in that: A connecting rod (26) is fixedly connected inside the sliding frame (25). A second spring (27) is sleeved on one side of the connecting rod (26). One end of the second spring (27) is fixedly connected to the sliding cylinder (21), and the other end of the second spring (27) is fixedly connected to the sliding frame (25). A ball (28) is rotatably arranged on the lower side of the sliding frame (25).

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