Automatic feeding machine for steel pipe laser cutting

Abstract

The present invention relates to the technical field of feeding devices, and specifically to an automatic feeding machine for laser cutting of steel pipes, comprising a buffer tank and a conveying frame, a feeding mechanism being installed on one side of the conveying frame, the feeding mechanism comprising a discharge frame, the upper end of the discharge frame being designed with an inclined surface, a blank pipe being arranged on the upper end of the discharge frame, a feeding mechanism being installed on the upper end of the conveying frame, a plurality of groups of baffles being fixedly connected to a position near one side of the upper end of the conveying frame, the blank pipe being lifted upward for feeding by the mutual cooperation of a first chain and a feeding hook, and being detached by itself to move toward a feeding roller, and being replenished by itself by the inclined surface design of the discharge frame, so that the feeding hook can automatically circulate and feed, the automatic feeding can run continuously, manual intervention can be reduced, and production efficiency can be significantly improved.

Description

Technical Field

[0001] The invention relates to the technical field of feeding devices, in particular to an automatic feeding machine for laser cutting of steel pipes. Background Art

[0002] With the development of laser technology, laser cutting machines have gradually replaced some conventional pipe processing methods and have occupied a place in the field of industrial processing.

[0003] When transporting large pipes before cutting, most of them use gantry cranes to move the pipes, but the efficiency is low, and the bundling and disassembly of pipes and the loading process are time-consuming and labor-intensive. In addition, the laser cutting machine, as a fully automatic cutting equipment, does not require human intervention. When the outside of the pipe contains rust or sticky impurities, it cannot be cleaned in time, which will greatly affect the effect of laser cutting. In addition, the oil stains on the outer wall of the pipe due to processing reasons will also affect the subsequent processing of the pipe. For this reason, we propose an automatic feeding machine for steel pipe laser cutting. Summary of the invention

[0004] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the present invention proposes an automatic feeding machine for laser cutting of steel pipes.

[0005] The technical solution adopted by the present invention to solve its technical problems is: an automatic feeding machine for laser cutting of steel pipes, including a conveying frame, a feeding mechanism is installed on one side of the conveying frame, the feeding mechanism includes a discharge frame, the upper end of the discharge frame is designed as an inclined surface, a blank pipe is arranged on the upper end of the discharge frame, a feeding mechanism is installed on the upper end of the conveying frame, and a plurality of baffles are fixedly connected to the upper end of the conveying frame near one side.

[0006] Preferably, the feeding mechanism includes a buffer frame fixedly connected to the conveying frame, the upper end of the buffer frame is designed as a slope, a first motor is installed on the inner side of the buffer frame near the middle, the output shaft of the first motor is fixedly connected to the first fixed shaft, the outer side of the first fixed shaft is fixedly connected to two groups of symmetrical first gears, the outer side of the first gear is rotatably connected to the first chain, the outer side of the first chain is fixedly connected to a feeding hook, the inner side of the first chain is rotatably connected to the second gear, and the inner sides of the two groups of the second gears are commonly fixedly connected to the second fixed shaft.

[0007] Preferably, two groups of symmetrical rising frames are fixedly connected to one side of the buffer frame, two groups of symmetrical bearing seats are fixedly connected to the outer side of the rising frame, the outer side of the first fixed shaft is rotatably connected to one group of bearing seats, and the outer side of the second fixed shaft is rotatably connected to the other group of bearing seats.

[0008] Preferably, the feeding mechanism includes a second motor and feeding rollers, and multiple groups of feeding rollers are rotatably connected to the inner side of the conveying frame. The second motor is installed at the upper end of the conveying frame. The output shaft of the second motor is fixedly connected to a group of feeding rollers, one end of the feeding rollers is fixedly connected to a third gear, the outer sides of multiple groups of the third gears are rotatably connected to a second chain, and the inner side of the second chain is rotatably connected to a fourth gear.

[0009] Preferably, one end of the fourth gear is fixedly connected to the output shaft of the first electric telescopic rod through a connecting shaft, the outer shell of the first electric telescopic rod is fixedly connected to a mounting box, the lower end of the mounting box is fixedly connected to the conveying frame, a slide groove is provided on one side of the mounting box, and the connecting shaft of the fourth gear is slidably connected to the inner side of the slide groove.

[0010] Preferably, the feeding mechanism also includes two groups of fixed rods fixedly connected to the conveying frame, the rear ends of the two groups of fixed rods are commonly fixedly connected to an externally toothed annular plate, the rear end of the externally toothed annular plate is fixedly connected to a second annular plate, the outer side of the externally toothed annular plate is meshingly connected to a fifth gear, the rear end of the fifth gear is rotatably connected to a mounting plate via a rotating shaft, a third motor is installed at the rear end of the mounting plate, the output shaft of the third motor is fixedly connected to the fifth gear, the front end of the mounting plate is fixedly connected to a C-shaped plate near the middle, and the inner side of the C-shaped plate is slidably connected to the second annular plate.

[0011] Preferably, the front end of the mounting plate is rotatably connected to two sets of symmetrical limiting rollers, and the two sets of limiting rollers are slidably connected to the inner and outer sides of the second annular plate.

[0012] Preferably, the upper end of the mounting plate is fixedly connected to a detergent tank via a bracket, the output port of the detergent tank is fixedly connected to a sleeve, the lower end of the sleeve is fixedly connected to the mounting plate, the inner side of the mounting plate is slidably connected to a discharge pipe, a feed trough is provided on the outer side of the discharge pipe, the outer side of the discharge pipe passes through the mounting plate, a paint brush is fixedly connected to the outer side of the mounting plate near the lower end, and the inner side of the paint brush is designed for adsorption.

[0013] Preferably, the upper end of the paint brush is fixedly connected to the output shaft of the second electric telescopic rod, and the outer shell of the second electric telescopic rod is fixedly connected to the inner side of the mounting plate.

[0014] Preferably, the outer side of the fifth gear is rotatably connected to a synchronous belt, the inner side of the synchronous belt is rotatably connected to a sixth gear, the front end of the sixth gear is fixedly connected to a grinding shaft, the rear end of the grinding shaft is rotatably connected to a mounting plate via a rotating shaft, and the rear end of the sixth gear is fixedly connected to a cleaning barrel via a rotating shaft.

[0015] Compared with the prior art, the present invention provides an automatic feeding machine for steel pipe laser cutting, which has the following beneficial effects:

[0016] 1. Through the cooperation between the first chain and the feeding hook, the blank tube can be lifted upward for feeding, and it can automatically detach and move to the feeding roller, and the material can be replenished automatically through the inclined design of the unloading rack, so that the feeding hook can automatically circulate and feed. Automatic feeding can run continuously, reduce manual intervention, and significantly improve production efficiency. Automatic feeding can improve production continuity, ensure consistent processing conditions for each pipe, and ensure stable product quality. Through the cooperation between the first electric telescopic rod and the fourth gear, the tightness of the second chain can be adjusted to reduce energy loss of the second chain, ensure effective power transmission, improve equipment operation efficiency, and appropriate tightness reduces wear of the chain and sprocket, extends service life, and reduces replacement frequency.

[0017] 2. Through the cooperation between the external toothed ring plate and the fifth gear, the grinding shaft can perform comprehensive grinding and rust removal on the outer wall of the blank pipe. Rust removal can remove the unevenness of the outer wall, ensure the flatness of the cutting surface, and improve the cutting accuracy. Rust removal can remove surface impurities and oxide layers, reduce the wear of the tool during cutting, and extend the service life. Grinding helps to keep the outer diameter of the pipe consistent and ensure that the size after cutting meets the requirements. Through the cooperation between the second electric telescopic rod and the discharge pipe, the paint brush can output cleaning agent to the outer wall of the blank pipe. The cleaning agent can penetrate into the tiny pores on the surface of the pipe, effectively dissolve and remove residual grease, dirt and other impurities. The wiping process can further remove the cleaning agent and its dissolved dirt from the surface of the pipe, thereby ensuring that the surface of the pipe is thoroughly cleaned.

[0018] 3. Through the cooperation between the cleaning cylinder and the sixth gear, the impurities and liquids left after the outside of the blank tube is cleaned, further reducing the risk of corrosion and oxidation, and ensuring the quality of subsequent processing of the blank tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The overall structure of an automatic feeding machine for steel tube laser cutting proposed by the present invention is shown in FIG. Figure 1 ;

[0020] Figure 2 The overall structure of an automatic feeding machine for steel tube laser cutting proposed by the present invention is shown in FIG. Figure 2 ;

[0021] Figure 3 An automatic feeding machine for steel pipe laser cutting proposed by the present invention Figure 2 A schematic diagram of the structure enlargement of part A;

[0022] Figure 4This is a schematic cross-sectional view of the feeding mechanism of an automatic feeder for steel tube laser cutting proposed by the present invention. Figure 1 ;

[0023] Figure 5 An automatic feeding machine for steel pipe laser cutting proposed by the present invention Figure 4 A schematic diagram of the structure of part B in the middle is enlarged;

[0024] Figure 6 This is an enlarged schematic diagram of a feeding mechanism of an automatic feeder for laser cutting of steel pipes proposed by the present invention;

[0025] Figure 7 This is a schematic cross-sectional view of the feeding mechanism of an automatic feeder for steel tube laser cutting proposed by the present invention. Figure 2 ;

[0026] Figure 8 An automatic feeding machine for steel pipe laser cutting proposed by the present invention Figure 7 The enlarged schematic diagram of the structure of part C in the middle;

[0027] Fig. 9 This is a schematic cross-sectional view of the feeding mechanism of an automatic feeder for steel tube laser cutting proposed by the present invention. Figure 3 .

[0028] In the figure: 1, conveying frame; 2, feeding mechanism; 21, buffer frame; 22, first motor; 23, first fixed shaft; 24, first gear; 25, first chain; 26, second gear; 27, second fixed shaft; 28, bearing seat; 29, rising frame; 210, unloading frame; 211, feeding hook; 3, feeding mechanism; 31, second motor; 32, feeding roller; 33, third gear; 34, second chain; 35, fourth gear; 36, slide; 37, first electric telescopic rod; 38, Mounting box; 39, fixing rod; 310, outer toothed annular plate; 311, second annular plate; 312, fifth gear; 313, mounting plate; 314, third motor; 315, limiting roller; 316, C-shaped plate; 317, detergent tank; 318, sleeve; 319, discharge pipe; 320, feed trough; 321, paint brush; 322, synchronous belt; 323, sixth gear; 324, grinding shaft; 325, cleaning barrel; 326, second electric telescopic rod; 4, baffle; 5, blank tube. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0030] See also Figure 1-Figure 9An automatic feeding machine for steel pipe laser cutting includes a conveying frame 1, a feeding mechanism 2 is installed on one side of the conveying frame 1, the feeding mechanism 2 includes a discharge frame 210, the upper end of the discharge frame 210 is designed as an inclined surface, and a blank tube 5 is arranged on the upper end of the discharge frame 210, a feeding mechanism 3 is installed on the upper end of the conveying frame 1, and a plurality of baffles 4 are fixedly connected to the upper end of the conveying frame 1 near one side.

[0031] In this embodiment, the feeding mechanism 2 includes a buffer frame 21 fixedly connected to the conveying frame 1, the upper end of the buffer frame 21 is designed as a slope, and a first motor 22 is installed on the inner side of the buffer frame 21 near the middle position, the output shaft of the first motor 22 is fixedly connected to the first fixed shaft 23, and the outer side of the first fixed shaft 23 is fixedly connected to two groups of symmetrical first gears 24, the outer side of the first gear 24 is rotatably connected to the first chain 25, the outer side of the first chain 25 is fixedly connected to a feeding hook 211, the inner side of the first chain 25 is rotatably connected to the second gear 26, and the inner sides of the two groups of second gears 26 are commonly fixedly connected to the second fixed shaft 27.

[0032] Specifically, the buffer frame 21 is used as a support frame and uses an inclined surface design to guide the blank tube 5. The output shaft of the first motor 22 drives the first fixed shaft 23 to rotate, the first fixed shaft 23 drives the first gear 24 to rotate, the first gear 24 drives the first chain 25 to rotate, the first chain 25 drives the second gear 26 to rotate, the second gear 26 drives the second fixed shaft 27 to rotate, and the second gear 26 drives the loading hook 211 to rotate when the second gear 26 rotates. When the loading hook 211 moves from the bottom to the top, it drags a group of blank tubes 5 and is driven to move upward by the second gear 26. When the second gear 26 turns, the blank tube 5 breaks away from the loading hook 211, and then rolls to the position of the conveying frame 1 through the inclined surface of the buffer frame 21, stops rolling after touching the baffle 4, and finally stays to the outside of the feeding roller 32.

[0033] In this embodiment, two groups of symmetrical rising frames 29 are fixedly connected to one side of the buffer frame 21, and two groups of symmetrical bearing seats 28 are fixedly connected to the outer side of the rising frame 29. The outer side of the first fixed shaft 23 is rotatably connected to one group of bearing seats 28, and the outer side of the second fixed shaft 27 is rotatably connected to the other group of bearing seats 28.

[0034] Specifically, the second fixed shaft 27 and the first fixed shaft 23 are fixed on the inner side of the rising frame 29 through the bearing seat 28, so that the second gear 26 is supported.

[0035] In this embodiment, the feeding mechanism 3 includes a second motor 31 and a feeding roller 32. Multiple groups of feeding rollers 32 are rotatably connected to the inner side of the conveying frame 1. The second motor 31 is installed at the upper end of the conveying frame 1. The output shaft of the second motor 31 is fixedly connected to a group of feeding rollers 32. One end of the feeding roller 32 is fixedly connected to a third gear 33. The outer sides of multiple groups of third gears 33 are rotatably connected to the second chain 34. The inner side of the second chain 34 is rotatably connected to the fourth gear 35.

[0036] Specifically, the second motor 31 is started, and the output shaft of the second motor 31 drives the third gear 33 to rotate, and the third gear 33 drives the feeding roller 32 to rotate. A group of third gears 33 drives the remaining third gears 33 to rotate in the same direction through the second chain 34, and the third gears 33 transport the blank tube 5 to the cutting table by rotating.

[0037] In this embodiment, one end of the fourth gear 35 is fixedly connected to the output shaft of the first electric telescopic rod 37 through a connecting shaft, the outer shell of the first electric telescopic rod 37 is fixedly connected to the mounting box 38, the lower end of the mounting box 38 is fixedly connected to the conveying frame 1, and a slide groove 36 is provided on one side of the mounting box 38, and the connecting shaft of the fourth gear 35 is slidably connected to the inner side of the slide groove 36.

[0038] Specifically, the first electric telescopic rod 37 installed on the inner side of the installation box 38 is started, and the output shaft of the first electric telescopic rod 37 drives the fourth gear 35 to slide in the slide groove 36. When the fourth gear 35 moves, the second chain 34 is pulled open, thereby adjusting the opening degree of the second chain 34, which is used to control the tension of the second chain 34.

[0039] In this embodiment, the feeding mechanism 3 also includes two groups of fixed rods 39 fixedly connected to the conveying frame 1, and the rear ends of the two groups of fixed rods 39 are commonly fixedly connected to an external toothed annular plate 310, and the rear end of the external toothed annular plate 310 is fixedly connected to a second annular plate 311, and the outer side of the external toothed annular plate 310 is meshingly connected to a fifth gear 312, and the rear end of the fifth gear 312 is rotatably connected to a mounting plate 313 via a rotating shaft, and a third motor 314 is installed at the rear end of the mounting plate 313, and the output shaft of the third motor 314 is fixedly connected to the fifth gear 312, and the front end of the mounting plate 313 is fixedly connected to a C-shaped plate 316 near the middle, and the inner side of the C-shaped plate 316 is slidably connected to the second annular plate 311.

[0040] Specifically, the fixing rod 39 is used to fix the outer toothed annular plate 310 and the conveying frame 1 .

[0041] In this embodiment, the front end of the mounting plate 313 is rotatably connected to two sets of symmetrical limiting rollers 315 , and the two sets of limiting rollers 315 are slidably connected to the inner and outer sides of the second annular plate 311 .

[0042] Specifically, the third motor 314 is started, and the third motor 314 drives the fifth gear 312 to rotate. The fifth gear 312 is meshed with the outer teeth of the outer toothed ring plate 310. When the fifth gear 312 rotates, it drives the mounting plate 313 to move around the outer toothed ring plate 310. When the mounting plate 313 moves, it slides on the outer side of the second ring plate 311 through the C-shaped plate 316 to prevent the mounting plate 313 from falling off. When the mounting plate 313 rotates, it drives the limiting roller 315. The two sets of limiting rollers 315 fit the inner and outer sides of the outer toothed ring plate 310, so that when the mounting plate 313 moves, the limiting roller 315 reduces the friction during movement, thereby assisting the movement of the mounting plate 313.

[0043] In this embodiment, the upper end of the mounting plate 313 is fixedly connected to a detergent tank 317 through a bracket, the output port of the detergent tank 317 is fixedly connected to a sleeve 318, the lower end of the sleeve 318 is fixedly connected to the mounting plate 313, the inner side of the mounting plate 313 is slidably connected to a discharge pipe 319, the outer side of the discharge pipe 319 is provided with a feed trough 320, the outer side of the discharge pipe 319 passes through the mounting plate 313, and the outer side of the mounting plate 313 is fixedly connected to a paint brush 321 near the lower end, and the inner side of the paint brush 321 is designed for adsorption.

[0044] Specifically, the output shaft of the second electric telescopic rod 326 drives the paint brush 321 to fit the outer wall of the blank tube 5. When the mounting plate 313 moves, it drives the discharge pipe 319 to slide in the sleeve 318, so that the feed trough 320 is aligned with the output port of the detergent tank 317, so that the cleaning agent inside the detergent tank 317 enters the discharge pipe 319 through the feed trough 320, and then flows into the paint brush 321. After the paint brush 321 is penetrated, it cleans the outer wall of the blank tube 5 while following the movement of the mounting plate 313, thereby improving the cutting effect.

[0045] In this embodiment, the upper end of the paint brush 321 is fixedly connected to the output shaft of the second electric telescopic rod 326 , and the outer shell of the second electric telescopic rod 326 is fixedly connected to the inner side of the mounting plate 313 .

[0046] Specifically, the second electric telescopic rod 326 acts as kinetic energy to drive the paint brush 321 to fit the outer wall of the blank tube 5 .

[0047] In this embodiment, the outer side of the fifth gear 312 is rotatably connected to the synchronous belt 322, the inner side of the synchronous belt 322 is rotatably connected to the sixth gear 323, the front end of the sixth gear 323 is fixedly connected to the grinding shaft 324, the rear end of the grinding shaft 324 is rotatably connected to the mounting plate 313 via a rotating shaft, and the rear end of the sixth gear 323 is fixedly connected to the cleaning barrel 325 via a rotating shaft.

[0048] Specifically, the sixth gear 323 drives the grinding shaft 324 to rotate, and the grinding shaft 324 rotates and revolves with the mounting plate 313, so as to grind and clean the outer wall of the blank tube 5 to avoid residual impurities affecting the cutting. When the sixth gear 323 rotates, it drives the cleaning barrel 325 to rotate through the rotating shaft. When the cleaning barrel 325 rotates, it fully wipes the outer wall of the blank tube 5 to avoid missing dead corners.

[0049] Working principle: when in use, multiple groups of blank tubes 5 are placed on the upper end of the unloading rack 210, and the first motor 22 is started. The output shaft of the first motor 22 drives the first fixed shaft 23 to rotate, the first fixed shaft 23 drives the first gear 24 to rotate, the first gear 24 drives the first chain 25 to rotate, the first chain 25 drives the second gear 26 to rotate, the second gear 26 drives the second fixed shaft 27 to rotate, the second fixed shaft 27 and the first fixed shaft 23 are fixed on the inner side of the rising rack 29 through the bearing seat 28, so that the second gear 26 can be When the second gear 26 rotates, it drives the feeding hook 211 to rotate. When the feeding hook 211 moves upward from the bottom, it drags a group of blank tubes 5 and is driven to move upward by the second gear 26. When the second gear 26 turns, the blank tube 5 is separated from the feeding hook 211, and then rolls to the position of the conveying frame 1 through the inclined surface of the buffer frame 21, stops rolling after touching the baffle 4, and finally stops at the outside of the feeding roller 32. The remaining blank tubes 5 on the upper end of the unloading frame 210 use the inclined surface design of the unloading frame 210 to roll by themselves for feeding;

[0050] The first electric telescopic rod 37 installed on the inner side of the installation box 38 is started, and the output shaft of the first electric telescopic rod 37 drives the fourth gear 35 to slide in the slide groove 36. When the fourth gear 35 moves, the second chain 34 is pulled open, thereby adjusting the opening degree of the second chain 34 to control the tension of the second chain 34. After the adjustment is completed, the second motor 31 is started, and the output shaft of the second motor 31 drives the third gear 33 to rotate, and the third gear 33 drives the feeding roller 32 to rotate. A group of third gears 33 drives the remaining third gears 33 to rotate in the same direction through the second chain 34, and the third gear 33 rotates The blank tube 5 is conveyed to the cutting table, and the third motor 314 is started. The third motor 314 drives the fifth gear 312 to rotate, and the fifth gear 312 is meshed with the outer teeth of the outer toothed ring plate 310. When the fifth gear 312 rotates, it drives the mounting plate 313 to move around the outer toothed ring plate 310. When the mounting plate 313 moves, it slides on the outer side of the second ring plate 311 through the C-shaped plate 316 to prevent the mounting plate 313 from falling off. When the mounting plate 313 rotates, it drives the limiting roller 315. The two sets of limiting rollers 315 are attached to the inner and outer sides of the outer toothed ring plate 310, so that when the mounting plate 313 moves, it passes through the limiting rollers The wheel 315 reduces the friction during movement, thereby assisting the movement of the mounting plate 313. When the fifth gear 312 rotates, the sixth gear 323 is driven to rotate through the synchronous belt 322. The sixth gear 323 drives the grinding shaft 324 to rotate. The grinding shaft 324 rotates and revolves with the mounting plate 313, thereby grinding and cleaning the outer wall of the blank tube 5 to avoid residual impurities affecting the cutting. The second electric telescopic rod 326 is started, and the output shaft of the second electric telescopic rod 326 drives the paint brush 321 to fit the outer wall of the blank tube 5. When the mounting plate 313 moves, it drives the discharge pipe 319 in the sleeve 318. Slide, so that the feed slot 320 is aligned with the output port of the detergent tank 317, so that the cleaning agent inside the detergent tank 317 enters the discharge pipe 319 through the feed slot 320, and then flows into the paint brush 321. After the paint brush 321 is penetrated, it moves with the mounting plate 313 to clean the outer wall of the blank tube 5, thereby improving the cutting effect. When the sixth gear 323 rotates, it drives the cleaning cylinder 325 to rotate through the rotating shaft. When the cleaning cylinder 325 rotates, it wipes and polishes the outer wall of the blank tube 5 comprehensively to avoid missing dead corners, so that the outer wall of the blank tube 5 is comprehensively cleaned, thereby improving the processing effect.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic feeding machine for steel tube laser cutting, comprising a conveying frame (1), characterized in that: A loading mechanism (2) is installed on one side of the conveying frame (1), the loading mechanism (2) comprising a discharge frame (210), the upper end of the discharge frame (210) being designed as an inclined surface, the upper end of the discharge frame (210) being provided with a blank tube (5), the upper end of the conveying frame (1) being installed with a feeding mechanism (3), the upper end of the conveying frame (1) being fixedly connected to a position near one side with a plurality of baffles (4), the feeding mechanism (3) further comprising two groups of fixing rods (39) fixedly connected to the conveying frame (1), the rear ends of the two groups of fixing rods (39) being connected together. The outer ring plate (310) is fixedly connected to the outer ring plate (310), the rear end of the outer ring plate (310) is fixedly connected to the second ring plate (311), the outer side of the outer ring plate (310) is meshingly connected to a fifth gear (312), the rear end of the fifth gear (312) is rotatably connected to a mounting plate (313) via a rotating shaft, the feeding mechanism (2) comprises a buffer frame (21) fixedly connected to the conveying frame (1), the upper end of the buffer frame (21) is designed as an inclined surface, and a first motor (21) is installed on the inner side of the buffer frame (21) near the middle. 2), the output shaft of the first motor (22) is fixedly connected to a first fixed shaft (23), the outer side of the first fixed shaft (23) is fixedly connected to two sets of symmetrical first gears (24), the outer side of the first gear (24) is rotatably connected to a first chain (25), the outer side of the first chain (25) is fixedly connected to a feeding hook (211), the inner side of the first chain (25) is rotatably connected to a second gear (26), the inner sides of the two sets of the second gears (26) are commonly fixedly connected to a second fixed shaft (27), the feeding mechanism ( 3) comprises a second motor (31) and a feeding roller (32), wherein a plurality of groups of the feeding rollers (32) are rotatably connected to the inner side of the conveying frame (1), the second motor (31) is mounted on the upper end of the conveying frame (1), the output shaft of the second motor (31) is fixedly connected to a group of feeding rollers (32), one end of the feeding roller (32) is fixedly connected to a third gear (33), the outer sides of the plurality of groups of the third gears (33) are rotatably connected to a second chain (34), and the inner side of the second chain (34) is rotatably connected to a fourth gear (35).

2. The automatic feeding machine for steel tube laser cutting according to claim 1, characterized in that: Two groups of symmetrical rising frames (29) are fixedly connected to one side of the buffer frame (21), and two groups of symmetrical bearing seats (28) are fixedly connected to the outer side of the rising frame (29). The outer side of the first fixed shaft (23) is rotatably connected to one group of bearing seats (28), and the outer side of the second fixed shaft (27) is rotatably connected to the other group of bearing seats (28).

3. The automatic feeding machine for steel tube laser cutting according to claim 1, characterized in that: One end of the fourth gear (35) is fixedly connected to the output shaft of the first electric telescopic rod (37) via a connecting shaft; the housing of the first electric telescopic rod (37) is fixedly connected to a mounting box (38); the lower end of the mounting box (38) is fixedly connected to the conveying frame (1); a slide groove (36) is provided on one side of the mounting box (38); and the connecting shaft of the fourth gear (35) is slidably connected to the inner side of the slide groove (36).

4. The automatic feeding machine for steel tube laser cutting according to claim 1, characterized in that: A third motor (314) is installed at the rear end of the mounting plate (313); an output shaft of the third motor (314) is fixedly connected to the fifth gear (312); a C-shaped plate (316) is fixedly connected to the front end of the mounting plate (313) near the middle; the inner side of the C-shaped plate (316) is slidably connected to the second annular plate (311).

5. The automatic feeding machine for steel tube laser cutting according to claim 1, characterized in that: The front end of the mounting plate (313) is rotatably connected to two sets of symmetrical limiting rollers (315), and the two sets of limiting rollers (315) are slidably connected to the inner and outer sides of the second annular plate (311).

6. The automatic feeding machine for steel tube laser cutting according to claim 1, characterized in that: The upper end of the mounting plate (313) is fixedly connected to a detergent tank (317) via a bracket, the output port of the detergent tank (317) is fixedly connected to a sleeve (318), the lower end of the sleeve (318) is fixedly connected to the mounting plate (313), the inner side of the mounting plate (313) is slidably connected to a discharge pipe (319), the outer side of the discharge pipe (319) is provided with a feed trough (320), the outer side of the discharge pipe (319) passes through the mounting plate (313), and the outer side of the mounting plate (313) is fixedly connected to a paint brush (321) near the lower end, the inner side of the paint brush (321) is designed for adsorption.

7. The automatic feeding machine for steel tube laser cutting according to claim 6, characterized in that: The upper end of the paint brush (321) is fixedly connected to the output shaft of a second electric telescopic rod (326), and the outer shell of the second electric telescopic rod (326) is fixedly connected to the inner side of the mounting plate (313).

8. The automatic feeding machine for steel tube laser cutting according to claim 1, characterized in that: The outer side of the fifth gear (312) is rotatably connected to a synchronous belt (322), the inner side of the synchronous belt (322) is rotatably connected to a sixth gear (323), the front end of the sixth gear (323) is fixedly connected to a grinding shaft (324), the rear end of the grinding shaft (324) is rotatably connected to the mounting plate (313) via a rotating shaft, and the rear end of the sixth gear (323) is fixedly connected to a cleaning cylinder (325) via a rotating shaft.

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