Automatic feeding device of laser pipe cutting machine

Abstract

The utility model relates to an automatic feeding device of a laser pipe cutting machine. The automatic feeding device comprises a vertical rod, a winding frame is arranged on the left side of the vertical rod, a slope is arranged on the side, facing the vertical rod, of the winding frame, a transition wheel installation plate is arranged on the winding frame, a transition wheel is installed on the side face of the transition wheel installation plate, one end of a flexible belt is connected with the vertical rod, and the other end of the flexible belt winds around the transition wheel and then is connected with the vertical rod. A flexible belt tensioning assembly is connected; a V-shaped groove is formed between the transition wheel mounting plate and the slope, a material blocking mechanism is arranged on one of the front side face and the rear side face of the winding frame, a sorting mechanism is arranged on the other one of the front side face and the rear side face of the winding frame, and the material blocking mechanism and the sorting mechanism are matched to block and sort pipes to be cut at the V-shaped groove, so that only one pipe to be cut is reserved at the V-shaped groove. The automatic feeding device has the beneficial effects that the automatic feeding device can be used for stopping and sorting pipes at the V-shaped groove through the stopping mechanism and the sorting mechanism, so that redundant pipes in the V-shaped groove fall onto the flexible belt again.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cutting equipment, in particular to an automatic feeding device of a laser tube cutting machine. Background Art

[0002] Chinese patent document CN215787537U discloses a feeding device for a laser tube cutting machine, including a conveying device, a material guiding device and an adjusting clamping device; the material guiding device is located at one end of the conveying device, and the material guiding device includes a vertical pole away from the conveying device, a winding frame close to the conveying device, and a flexible belt connected to the vertical pole and the winding frame at both ends, and the height of the flexible belt close to the vertical pole is higher than the height close to the winding frame; the adjusting clamping device is located above the conveying belt, and the adjusting clamping device includes a first driving part, a second driving part, a blocking part and a clamping part; a stopper is provided at one end of the conveying device away from the material guiding device. The defects and shortcomings of the feeding device are that when it feeds by adjusting the tension of the flexible belt, it is impossible to screen and sort the pipes, which causes multiple pipes to be stacked on the conveying device, affecting the gripping and clamping of the adjusting clamping device.

[0003] Therefore, there is an urgent need to provide an automatic feeding device for a laser tube cutting machine that can automatically screen and sort tubes. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides an automatic feeding device for a laser tube cutting machine, which solves the technical problem that the automatic feeding device of the existing laser tube cutting machine cannot screen and sort the stacked tubes.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0008] The embodiment of the utility model provides an automatic feeding device for a laser tube cutting machine, comprising a plurality of uprights, a winding frame, a flexible belt, and a flexible belt tensioning assembly arranged at the lower part of the winding frame;

[0009] The winding racks are arranged one by one on the left side of the plurality of vertical poles, a slope is arranged on the side of the winding rack facing the vertical pole, and a transition wheel mounting plate is arranged on the winding rack near the slope, a transition wheel is mounted on the side of the transition wheel mounting plate, one end of the flexible belt is connected to the upper end of the vertical pole, and the other end of the flexible belt is connected to the flexible belt tensioning assembly after passing around the transition wheel;

[0010] A V-shaped groove is formed between the upper surface of the transition wheel mounting plate and the slope, and a material blocking mechanism is provided on one of the front side or rear side of the winding frame near the V-shaped groove, and a material sorting mechanism is provided on the other of the front side or rear side of the winding frame near the V-shaped groove. The material blocking mechanism and the material sorting mechanism cooperate to block and sort the pipe to be cut at the V-shaped groove, so that only one pipe to be cut is retained at the V-shaped groove.

[0011] Optionally, the flexible belt tensioning assembly includes a first servo motor, a first transmission shaft and a plurality of winding wheels;

[0012] The output end of the first servo motor is drivingly connected to the first transmission shaft, the first transmission shaft is rotationally connected to the winding frame, and the first transmission shaft is provided with a plurality of winding wheels for receiving the flexible belt.

[0013] Optionally, the material blocking mechanism includes a material blocking plate and a material blocking plate driving assembly;

[0014] A first linear guide is arranged on the side of the winding frame, the extension direction of the first linear guide is perpendicular to the slope, a first slider is arranged on the side of the baffle plate facing the winding frame, and the first slider is slidably arranged on the first linear guide;

[0015] The baffle plate driving assembly is installed in the middle of the winding frame, and the baffle plate driving assembly is connected to the baffle plate driving to drive the baffle plate to perform linear reciprocating motion along the first linear guide rail;

[0016] A material pushing cylinder is installed on the side of the material blocking plate away from the winding frame, and the material pushing cylinder is used to push out the excess pipe to be cut at the V-shaped groove.

[0017] Optionally, a first induction switch is installed on a side of the material baffle plate facing away from the winding frame.

[0018] Optionally, the baffle plate driving assembly includes: a second servo motor, a second transmission shaft, a helical gear, a trapezoidal lead screw and a lead screw nut;

[0019] The second servo motor is fixedly mounted on the winding frame, the output end of the second servo motor is drivingly connected to the second transmission shaft, and the second transmission shaft is rotatably arranged on the winding frame;

[0020] The winding frame also rotatably mounts the trapezoidal lead screw, one end of the trapezoidal lead screw is transmission-connected to the second transmission shaft via the helical gear, the other end of the trapezoidal lead screw is sleeved with the lead screw nut, and the lead screw nut is fixedly connected to the baffle plate.

[0021] Optionally, the material sorting mechanism includes a material sorting plate and a material sorting plate driving assembly;

[0022] A second linear guide is provided on the side of the winding frame, the extension direction of the second linear guide is parallel to the slope, a second slider is provided on the side of the material dividing plate facing the winding frame, and the second slider is slidably provided on the second linear guide;

[0023] The material dividing plate driving assembly is installed on the winding frame, and the material dividing plate driving assembly is drivingly connected to the material dividing plate to drive the material dividing plate to perform linear reciprocating motion along the second linear guide rail;

[0024] The dividing plate is provided with a V-shaped opening corresponding to the V-shaped groove, and the V-shaped opening has the same shape as the V-shaped groove and is used for carrying the pipe to be cut.

[0025] Optionally, a second induction switch is provided on the side of the dividing plate near the V-shaped opening.

[0026] Optionally, the dividing plate driving assembly includes a third servo motor, a third transmission shaft, a driving sprocket, a driven sprocket and a transmission chain;

[0027] A third servo motor is installed at the bottom of the winding frame, and an output end of the third servo motor is drivingly connected to the third transmission shaft, and the third transmission shaft is rotatably arranged on the winding frame;

[0028] The third transmission shaft is axially equipped with a driving sprocket corresponding to each of the dividing plates, and the driven sprocket is installed on the upper part of the winding frame. One end of the transmission chain is connected to the upper side of the dividing plate, and the other end is connected to the lower side of the dividing plate after passing through the driven sprocket and the driving sprocket in sequence.

[0029] (III) Beneficial effects

[0030] The beneficial effects of the utility model are as follows: the automatic feeding device of the laser tube cutting machine of the utility model comprises a plurality of vertical poles, a winding frame, a flexible belt and a flexible belt tensioning assembly arranged at the bottom of the winding frame; the winding frames are arranged one by one on the left side of the plurality of vertical poles, a slope is arranged on the side of the winding frame facing the vertical pole, and a transition wheel mounting plate is arranged on the winding frame near the slope, a transition wheel is installed on the side of the transition wheel mounting plate, one end of the flexible belt is connected to the upper end of the vertical pole, and the other end is connected to the flexible belt tensioning assembly after passing the transition wheel; a V-shaped groove is formed between the upper surface of the transition wheel mounting plate and the slope, and the front side of the winding frame One of the front or rear side surfaces is provided with a material blocking mechanism near the V-groove, and the other of the front or rear side surfaces of the winding frame is provided with a material sorting mechanism near the V-groove. The material blocking mechanism and the material sorting mechanism cooperate to block and sort the pipe to be cut at the V-groove, so that only one pipe to be cut is retained at the V-groove. Compared with the prior art, the automatic feeding device of the utility model can block and sort the pipe at the V-groove through the material blocking mechanism and the material sorting mechanism, so that the excess pipe falls back onto the flexible belt, and finally only one pipe to be cut is retained at the V-groove for clamping, feeding and cutting by subsequent devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a three-dimensional schematic diagram of the automatic feeding device of the laser tube cutting machine of the utility model;

[0032] Figure 2 for Figure 1 An enlarged schematic diagram of the automatic feeding device at position A;

[0033] Figure 3 for Figure 1 An enlarged schematic diagram of the automatic feeding device at position B;

[0034] Figure 4 for Figure 1 An enlarged schematic diagram of the automatic loading device at position C.

[0035] [Description of Reference Numerals]

[0036] 1: upright pole; 2: winding frame; 21: slope; 22: V-shaped groove; 3: flexible belt; 4: transition wheel mounting plate; 41: transition wheel; 5: first servo motor;

[0037] 6: material blocking mechanism; 61: material blocking plate; 62: material pushing cylinder; 63: material blocking plate driving assembly; 631: second servo motor; 632: second transmission shaft; 633: helical gear; 634: trapezoidal lead screw; 635: lead screw nut;

[0038] 7: material sorting mechanism; 71: material sorting plate; 711: V-shaped mouth; 72: second induction switch; 73: second linear guide rail; 74: second slider; 75: material sorting plate driving assembly; 751: third servo motor; 752: driving sprocket; 753: driven sprocket; 754: transmission chain. DETAILED DESCRIPTION

[0039] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below in conjunction with the accompanying drawings through specific implementation methods. Figure 1 The orientation is used as a reference.

[0040] Please refer to Figure 1 and Figure 2 , this embodiment provides an automatic feeding device for a laser tube cutting machine, comprising a plurality of uprights 1, a winding rack 2, a flexible belt 3, and a flexible belt tensioning assembly arranged at the bottom of the winding rack 2;

[0041] Winding racks 2 are arranged one by one on the left side of the plurality of upright poles 1, a slope 21 is arranged on the side of the winding rack 2 facing the upright pole 1, and a transition wheel mounting plate 4 is arranged on the winding rack 2 near the slope 21, a transition wheel 41 is mounted on the side of the transition wheel mounting plate 4, one end of the flexible belt 3 is connected to the upper end of the upright pole 1, and the other end of the flexible belt 3 is connected to the flexible belt tensioning assembly after passing the transition wheel 41;

[0042] A V-shaped groove 22 is formed between the upper surface of the transition wheel mounting plate 4 and the slope 21, and a material blocking mechanism 6 is provided on one of the front side surfaces or the rear side surfaces of the winding frame 2 near the V-shaped groove 22, and a material sorting mechanism 7 is provided on the other front side surface or the rear side surface of the winding frame 2 near the V-shaped groove 22. The material blocking mechanism 6 and the material sorting mechanism 7 cooperate to block and sort the pipe to be cut at the V-shaped groove 22, so that only one pipe to be cut is retained at the V-shaped groove 22.

[0043] The working process of the automatic feeding device of the laser tube cutting machine of this embodiment is as follows: first, multiple tubes to be fed and cut are stacked and placed on the flexible belt 3; secondly, the flexible belt tensioning assembly tightens the flexible belt 3, and the flexible belt 3 carries multiple tubes upward, and allows some of the tubes to enter the V-groove 22; thirdly, the material blocking mechanism 6 and the material sorting mechanism 7 cooperate to block and sort the tubes to be cut at the V-groove 22 to push out excess tubes, and finally only one tube to be cut is retained at the V-groove 22.

[0044] In this embodiment, the flexible belt tensioning assembly includes a first servo motor 5, a first transmission shaft, and a plurality of winding wheels. The output end of the first servo motor 5 is drivingly connected to the first transmission shaft, the first transmission shaft is rotationally connected to the winding frame 2, and the first transmission shaft is provided with a plurality of winding wheels for receiving the flexible belt 3. When in use, the first servo motor 5 drives the first transmission shaft to rotate, the first transmission shaft drives the plurality of winding wheels to rotate synchronously, and the winding wheels wind up the flexible belt 3, thereby achieving the purpose of tightening the flexible belt 3.

[0045] Combination Figure 3 As shown, the material blocking mechanism 6 of this embodiment specifically includes a material blocking plate 61 and a material blocking plate driving assembly 63. A first linear guide is provided on the side of the winding frame 2, and the extension direction of the first linear guide is perpendicular to the ramp 21. A first slider is provided on the side of the material blocking plate 61 facing the winding frame 2, and the first slider is slidably provided on the first linear guide; a material blocking plate driving assembly 63 is installed in the middle of the winding frame 2, and the material blocking plate driving assembly 63 is connected to the material blocking plate 61 to drive the material blocking plate 61 to make a linear reciprocating motion along the first linear guide; a material pushing cylinder 62 is installed on the side of the material blocking plate 61 away from the winding frame 2, and the material pushing cylinder 62 is used to push out the excess pipe to be cut at the V-shaped groove 22 so that it falls back on the flexible belt 3.

[0046] Furthermore, a first induction switch is installed on the side of the baffle plate 61 facing away from the winding frame 2, and the first induction switch is used to sense the pipe to be cut.

[0047] Furthermore, the material blocking plate driving assembly 63 includes: a second servo motor 631, a second transmission shaft 632, a helical gear 633, a trapezoidal lead screw 634 and a lead screw nut 635. The second servo motor 631 is fixedly mounted on the winding frame 2, and the output end of the second servo motor 631 is drivingly connected to the second transmission shaft 632, and the second transmission shaft 632 is rotatably arranged on the winding frame 2; the winding frame 2 is also rotatably mounted with a trapezoidal lead screw 634, one end of which is drivingly connected to the second transmission shaft 632 through the helical gear 633, and the other end of the trapezoidal lead screw 634 is sleeved with a lead screw nut 635, and the lead screw nut 635 is fixedly connected to the material blocking plate 61.

[0048] When in use, the second servo motor 631 drives the second transmission shaft 632 to rotate, and the second transmission shaft 632 drives the trapezoidal lead screw 634 to rotate through the helical gear 633, and the trapezoidal lead screw 634 drives the baffle plate 61 to perform linear reciprocating motion along the first linear guide rail through the lead screw nut 635.

[0049] Combination Figure 4As shown, the material sorting mechanism 7 of this embodiment includes a material sorting plate 71 and a material sorting plate driving assembly 75. A second linear guide 73 is provided on the side of the winding frame 2, and the extension direction of the second linear guide 73 is parallel to the slope 21. A second slider 74 is provided on the side of the material sorting plate 71 facing the winding frame 2, and the second slider 74 is slidably arranged on the second linear guide 73; the material sorting plate driving assembly 75 is installed on the winding frame 2, and the material sorting plate driving assembly 75 is connected to the material sorting plate 71 for driving the material sorting plate 71 to make linear reciprocating motion along the second linear guide 73; the material sorting plate 71 is provided with a V-shaped opening 711 corresponding to the V-shaped groove 22, and the V-shaped opening 711 has the same shape as the V-shaped groove 22, and is used to carry the pipe to be cut.

[0050] Furthermore, a second induction switch 72 is provided on the side of the dividing plate 71 near the V-shaped opening 711 , and the second induction switch 72 is used to sense whether there is a pipe to be cut at the V-shaped opening 711 .

[0051] Furthermore, the material dividing plate driving assembly 75 includes a third servo motor 751, a third transmission shaft, a driving sprocket 752, a driven sprocket 753 and a transmission chain 754. The third servo motor 751 is installed at the bottom of the winding frame 2, and the output end of the third servo motor 751 is drivingly connected to the third transmission shaft, and the third transmission shaft is rotatably arranged on the winding frame 2; the third transmission shaft is axially installed with a driving sprocket 752 corresponding to each material dividing plate 71, and the upper part of the winding frame 2 is installed with a driven sprocket 753, and one end of the transmission chain 754 is connected to the upper side of the material dividing plate 71, and the other end is connected to the lower side of the material dividing plate 71 after passing through the driven sprocket 753 and the driving sprocket 752 in sequence.

[0052] During operation, the third servo motor 751 drives all the driving sprockets 752 to rotate synchronously through the third transmission shaft, and the driving sprockets 752 drive the dividing plate 71 to reciprocate along the second linear guide rail 73 through the transmission chain 754 to lift the pipe.

[0053] The working process of the material blocking mechanism 6 and the material sorting mechanism 7 of this embodiment is as follows:

[0054] Step S1: The baffle plate driving assembly 63 drives the baffle plate 61 to move to the first predetermined position, which is determined according to the diameter or width of the pipe to be cut. That is, when the baffle plate 61 is at the first predetermined position, the distance between the right side surface of the baffle plate 61 and the right side surface of the transition wheel mounting plate 16 is equal to the diameter or width of the pipe to be cut. At this time, the V-shaped groove 22 only allows a single or stacked pipe to be cut to exist. The stacked pipe to be cut means that there is only one pipe to be cut in each layer along the height direction.

[0055] Step S2: the first servo motor 5 drives the reel to reel the flexible belt 3, and the pipe to be cut on the flexible belt 3 is fed into the V-shaped groove 22. At this time, the V-shaped groove 22 may contain a single or stacked pipe to be cut.

[0056] Step S3: When the first induction switch on the baffle plate 61 senses that there are multiple stacked pipes to be cut at the V-groove 22, the dividing plate driving assembly 75 drives the dividing plate 71 to rise to the second predetermined position, and at the same time lifts up the pipe to be cut at the V-groove 22. The second predetermined position is determined according to the diameter or width of the pipe to be cut. That is, when the dividing plate 71 is at the second predetermined position, the distance between the upper surface of the V-shaped mouth 711 on the dividing plate 71 and the lower end surface of the pushing cylinder 62 is the same as the diameter or width of the pipe to be cut. The pushing cylinder 62 is actuated to push the stacked excess pipes to be cut back onto the flexible belt 3, and only allows a single pipe to be cut to be on the V-shaped mouth 711, waiting for the subsequent pipe clamping device to clamp and load the material.

[0057] Step S4: When the second induction switch 72 at the dividing plate 71 is in a triggered state due to the gravity of the pipe to be cut, it is judged that there is a pipe to be cut at the V-shaped mouth 711, and the dividing plate 71 is kept in the second predetermined position; when the second induction switch 72 is not triggered, it means that there is no pipe to be cut at the V-shaped mouth 711.

[0058] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0059] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] In the present utility model, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0061] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An automatic feeding device for a laser tube cutting machine, characterized in that: It comprises a plurality of upright poles (1), a winding frame (2), a flexible belt (3), and a flexible belt tensioning assembly arranged at the bottom of the winding frame (2); The winding rack (2) is arranged one by one on the left side of the plurality of vertical poles (1); a slope (21) is arranged on the side of the winding rack (2) facing the vertical pole (1); and a transition wheel mounting plate (4) is arranged on the winding rack (2) near the slope (21); a transition wheel (41) is mounted on the side of the transition wheel mounting plate (4); one end of the flexible belt (3) is connected to the upper end of the vertical pole (1); and the other end of the flexible belt (3) is connected to the flexible belt tensioning assembly after passing through the transition wheel (41); A V-shaped groove (22) is formed between the upper surface of the transition wheel mounting plate (4) and the slope (21); a material blocking mechanism (6) is provided on one of the front side or rear side of the winding frame (2) near the V-shaped groove (22); and a material sorting mechanism (7) is provided on the other of the front side or rear side of the winding frame (2) near the V-shaped groove (22); the material blocking mechanism (6) and the material sorting mechanism (7) cooperate to block and sort the pipe to be cut at the V-shaped groove (22), so that only one pipe to be cut is retained at the V-shaped groove (22).

2. The automatic feeding device of the laser tube cutting machine according to claim 1, characterized in that: The flexible belt tensioning assembly comprises a first servo motor (5), a first transmission shaft and a plurality of winding wheels; The output end of the first servo motor (5) is drivingly connected to the first transmission shaft, the first transmission shaft is rotationally connected to the winding frame (2), and the first transmission shaft is provided with a plurality of winding wheels for receiving the flexible belt (3).

3. The automatic feeding device of the laser tube cutting machine according to claim 1, characterized in that: The material blocking mechanism (6) comprises a material blocking plate (61) and a material blocking plate driving assembly (63); A first linear guide is arranged on the side of the winding frame (2), the extension direction of the first linear guide is perpendicular to the slope (21), and a first slider is arranged on the side of the baffle plate (61) facing the winding frame (2), and the first slider is slidably arranged on the first linear guide; The baffle plate driving assembly (63) is installed in the middle of the winding frame (2), and the baffle plate driving assembly (63) is drivingly connected to the baffle plate (61) to drive the baffle plate (61) to perform linear reciprocating motion along the first linear guide rail; A material pushing cylinder (62) is installed on the side of the material blocking plate (61) facing away from the winding frame (2), and the material pushing cylinder (62) is used to push out the excess pipe to be cut at the V-shaped groove (22).

4. The automatic feeding device of the laser tube cutting machine according to claim 3, characterized in that: A first induction switch is installed on the side of the material blocking plate (61) facing away from the winding frame (2).

5. The automatic feeding device of the laser tube cutting machine according to claim 3, characterized in that: The baffle plate driving assembly (63) comprises: a second servo motor (631), a second transmission shaft (632), a helical gear (633), a trapezoidal lead screw (634) and a lead screw nut (635); The second servo motor (631) is fixedly mounted on the winding frame (2); the output end of the second servo motor (631) is drivingly connected to the second transmission shaft (632); and the second transmission shaft (632) is rotatably disposed on the winding frame (2); The winding frame (2) is also rotatably mounted with the trapezoidal lead screw (634), one end of which is transmission-connected to the second transmission shaft (632) via the helical gear (633), the other end of which is sleeved with the lead screw nut (635), and the lead screw nut (635) is fixedly connected to the material blocking plate (61).

6. The automatic feeding device of the laser tube cutting machine according to claim 3, characterized in that: The material sorting mechanism (7) comprises a material sorting plate (71) and a material sorting plate driving assembly (75); A second linear guide rail (73) is arranged on the side of the winding frame (2), the extension direction of the second linear guide rail (73) is parallel to the slope (21), and a second slider (74) is arranged on the side of the material dividing plate (71) facing the winding frame (2), and the second slider (74) is slidably arranged on the second linear guide rail (73); The material dividing plate driving assembly (75) is installed on the winding frame (2), and the material dividing plate driving assembly (75) is drivingly connected to the material dividing plate (71) to drive the material dividing plate (71) to perform linear reciprocating motion along the second linear guide rail (73); The dividing plate (71) is provided with a V-shaped opening (711) corresponding to the V-shaped groove (22); the V-shaped opening (711) has the same shape as the V-shaped groove (22) and is used to carry the pipe to be cut.

7. The automatic feeding device of the laser tube cutting machine according to claim 6, characterized in that: A second induction switch (72) is provided on the side of the material dividing plate (71) near the V-shaped opening (711).

8. The automatic feeding device of the laser tube cutting machine according to claim 6, characterized in that: The material dividing plate driving assembly (75) comprises a third servo motor (751), a third transmission shaft, a driving sprocket (752), a driven sprocket (753) and a transmission chain (754); The third servo motor (751) is installed at the bottom of the winding frame (2), the output end of the third servo motor (751) is drivingly connected to the third transmission shaft, and the third transmission shaft is rotatably arranged on the winding frame (2); The driving sprocket (752) is installed on the third transmission shaft axially corresponding to each of the dividing plates (71), and the driven sprocket (753) is installed on the upper part of the winding frame (2). One end of the transmission chain (754) is connected to the upper side of the dividing plate (71), and the other end is connected to the lower side of the dividing plate (71) after passing through the driven sprocket (753) and the driving sprocket (752) in sequence.

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