Continuous aluminum pipe automatic production line

Abstract

The invention discloses an automatic production line for continuous aluminum pipes. The automatic production line comprises a preceding-stage processing device, a winding device, an unwinding device, a drawing machine, a cut-off machine, a discharging machine and a straightening machine. The preceding-stage processing device is used for providing continuous aluminum pipes; the winding device is used for winding the aluminum pipe; the unwinding device is used for unwinding an aluminum pipe; the drawing machine is in butt joint with the rear end of the unwinding device and used for drawing the aluminum pipe. The cut-off machine is in butt joint with the rear end of the drawing machine and used for cutting the aluminum pipe into sections. The discharging machine is in butt joint with the rear end of the cut-off machine and used for bearing and transferring the aluminum pipes. The straightening machine is in butt joint with the rear end of the discharging machine and used for straightening the aluminum pipe. By means of the structure, the drawing operation frequency of the drawing machine can be reduced, waste of aluminum pipes is reduced, meanwhile, the drawing precision is improved, automatic flow line production can be achieved, the production cost is reduced, meanwhile, the production efficiency is improved, and the use requirement is met.

Description

Technical Field

[0001] The invention relates to the field of aluminum tube processing equipment, and in particular to an automatic continuous aluminum tube production line. Background Art

[0002] The production process of aluminum tubes includes heat treatment of aluminum columns, hot sawing, pultrusion, drawing, straightening and other processes. In the existing aluminum tube production line, the aluminum columns are first processed into aluminum ingots, which are then pultruded into aluminum tubes of fixed length and then drawn to improve the accuracy of the aluminum tubes. Since the aluminum tubes are in sections, this production line needs to shrink the heads of the aluminum tubes before grabbing and dragging them forward during drawing, so that the front end of each section of the aluminum tube must be discarded, resulting in a certain amount of waste. Moreover, each section of the aluminum tube must repeat the operations of shrinking the heads, setting the molds, and drawing, which takes up a lot of time and labor costs, and each section of the aluminum tube must be manually intervened, making it difficult to achieve automated production. Therefore, there is an urgent need for a continuous aluminum tube automatic production line to solve the above problems. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an automatic production line for continuous aluminum tubes.

[0004] The technical solution adopted by an embodiment of the present invention to solve the technical problem is: a continuous aluminum tube automatic production line, including a pre-treatment device, a winding device, an unwinding device, a drawing machine, a cutting machine, a discharging machine and a straightening machine;

[0005] The pre-treatment device is used to provide continuous aluminum tubes;

[0006] The winding device is used to wind up the aluminum tube;

[0007] The unwinding device is used to unwind the aluminum tube;

[0008] The drawing machine is connected to the rear end of the unwinding device and is used to draw the aluminum tube;

[0009] The cutting machine is connected to the rear end of the drawing machine and is used to cut the aluminum tube into sections;

[0010] The discharging machine is connected to the rear end of the cutting machine and is used to receive and transport the aluminum tubes;

[0011] The straightening machine is connected to the rear end of the discharging machine and is used to straighten the aluminum tube.

[0012] As one of the preferred embodiments of the present invention, the drawing machine includes a first frame and a die base arranged on the first frame, a first driving device, a first belt drawing device, a second belt drawing device and an adjusting device;

[0013] The mold base is located at the front end;

[0014] The first driving device is connected to the first belt pulling device and the second belt pulling device;

[0015] The first belt pulling device and the second belt pulling device are connected to the rear end of the mold base and are arranged opposite to each other in the vertical direction;

[0016] The adjusting device is connected to the first belt pulling device and the second belt pulling device respectively, and is used to adjust the distance between the first belt pulling device and the second belt pulling device;

[0017] The aluminum tube is passed between the first belt pulling device and the second belt pulling device to pull the aluminum tube through the die base.

[0018] As one of the preferred embodiments of the present invention, a continuous aluminum tube automatic production line also includes a cooling device connected between the die base and the first belt pulling device and the second belt pulling device, which is used to cool the aluminum tube after drawing.

[0019] As one of the preferred embodiments of the present invention, the cutting machine includes a second frame, a movable frame, a second driving device, a metering device and a cutting device;

[0020] The second frame is provided with a feeding clamp seat and a discharging clamp seat;

[0021] The movable frame is installed on the second frame, and the aluminum tube is passed through the feed clamp seat, the movable frame and the discharge clamp seat;

[0022] The second driving device is installed on the second frame and connected to the movable frame, and is used to drive the movable frame to move back and forth between the feed clamp seat and the discharge clamp seat;

[0023] The metering device is installed on the second frame and is used to detect the length of the aluminum tube conveyed;

[0024] The cutting device is arranged on the movable frame and is used for cutting the aluminum tube.

[0025] As one of the preferred embodiments of the present invention, the straightening machine includes a first straightening device and a second straightening device; the discharging machine includes a turning discharging device, a first return material conveying device, a second return material conveying device, a first discharging conveying device and a second discharging conveying device;

[0026] The turning and discharging device is connected to a cutting machine that conveys the aluminum tube along a first direction M;

[0027] The first return material conveying device and the second return material conveying device are arranged on the left and right sides of the flipping and discharging device, respectively, and are used to convey the aluminum tube along the second direction N, which is opposite to the first direction M;

[0028] The first discharging conveying device is connected to the end of the first returning conveying device and between the first straightening device, and is used to convey the aluminum tube to the first straightening device along the first direction M;

[0029] The second discharging conveying device is connected to the end of the second returning conveying device and between the second straightening device, and is used to convey the aluminum tube along the first direction M to the second straightening device.

[0030] As one of the preferred embodiments of the present invention, a continuous aluminum tube automatic production line also includes a first partitioning and unloading device and a second partitioning and unloading device, the first partitioning and unloading device is connected between the first return material conveying device and the first discharge material conveying device, and the second partitioning and unloading device is connected between the second return material conveying device and the second discharge material conveying device.

[0031] As one of the preferred embodiments of the present invention, the first separating and unloading device includes a first driving assembly, a first transmission assembly, a first rotary belt and a plurality of first partitions;

[0032] The first driving assembly is connected to one end of the first transmission assembly;

[0033] The first rotary belt is rotatably connected between the first return conveyor device and the first discharge conveyor device and is connected to the other end of the first transmission assembly;

[0034] The first partitions are arranged at intervals along the rotation direction of the first rotary belt to form a plurality of first material unloading positions;

[0035] The first return material conveying device can convey the aluminum tube to the first unloading position, and transfer it to the first discharge material conveying device through the first rotary belt.

[0036] As one of the preferred embodiments of the present invention, a continuous aluminum tube automatic production line also includes a dryer connected between the front-stage processing device and the winding device, which is used to perform hot air drying on the aluminum tube.

[0037] As one of the preferred embodiments of the present invention, a continuous aluminum tube automatic production line also includes a speed adjustment machine connected between the unwinding device and the drawing machine, which is used to detect the conveying speed of the aluminum tube.

[0038] As one of the preferred embodiments of the present invention, a continuous aluminum tube automatic production line also includes a head shrinking machine connected between the unwinding device and the drawing machine, which is used to reduce the tube diameter of the front end of the aluminum tube.

[0039] The beneficial effects of the present invention are as follows: a continuous aluminum tube automatic production line, comprising a pre-stage processing device, a winding device, an unwinding device, a drawing machine, a cutting machine, a discharging machine and a straightening machine; the pre-stage processing device is used to provide continuous aluminum tubes; the winding device is used to wind the aluminum tubes; the unwinding device is used to unwind the aluminum tubes; the drawing machine is connected to the rear end of the unwinding device for drawing the aluminum tubes; the cutting machine is connected to the rear end of the drawing machine for cutting the aluminum tubes into sections; the discharging machine is connected to the rear end of the cutting machine for receiving and transporting the aluminum tubes; the straightening machine is connected to the rear end of the discharging machine for straightening the aluminum tubes; the above structure can reduce the number of drawing operations of the drawing machine, reduce the waste of aluminum tubes, and also improve the drawing accuracy, so as to realize automated assembly line production, reduce production costs and improve production efficiency, and meet usage requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0041] Figure 1 It is an automatic production line for continuous aluminum tubes;

[0042] Figure 2 It is the structural schematic diagram of the dryer;

[0043] Figure 3 It is a partial structural schematic diagram of the dryer;

[0044] Figure 4 It is a structural schematic diagram of a winding device;

[0045] Figure 5 is a first structural schematic diagram of a speed regulating machine;

[0046] Figure 6 is a second structural schematic diagram of the speed regulating machine;

[0047] Figure 7 It is a structural schematic diagram of the head shrinking machine;

[0048] Figure 8 This is an exploded view of the partial structure of the head shrinking machine;

[0049] Fig. 9 is a first structural schematic diagram of a drawing machine;

[0050] Fig.10 is a second structural schematic diagram of the drawing machine;

[0051] Fig.11 for Fig. 9 A partial enlarged view of the middle A area;

[0052] Fig.12 for Fig.10 A partial enlarged view of the middle B area;

[0053] Fig.13 for Fig. 9 A partial enlarged view of the middle C area;

[0054] Fig.14 for Fig. 9 A partial enlarged view of the D area in the middle;

[0055] Fig.15 for Fig. 9 A partial enlarged view of the middle E area;

[0056] Fig.16 for Fig. 9 A partial enlarged view of the middle F area;

[0057] Fig.17 is a first structural schematic diagram of a cutting machine;

[0058] Fig.18 is a second structural schematic diagram of the cutting machine;

[0059] Fig.19 is a first structural schematic diagram of a discharging machine;

[0060] Fig. 20 is a second structural schematic diagram of the discharging machine;

[0061] Fig.21 for Fig.19 A partial enlarged view of the middle G area;

[0062] Fig. 22 for Fig.19 A partial enlarged view of the middle H area. DETAILED DESCRIPTION

[0063] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0064] In the description of the present invention, the meaning of "above", "below", "exceed", etc. is not inclusive of the number itself, and the meaning of "above", "below", "within", etc. is inclusive of the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0065] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0066] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0067] Reference Figures 1 to 22 , a continuous aluminum tube automatic production line, including a pre-stage processing device, a winding device 110, an unwinding device 120, a drawing machine 200, a cutting machine 300, a discharging machine 400 and a straightening machine 500;

[0068] The pre-treatment device is used to provide continuous aluminum tubes;

[0069] The winding device 110 is used for winding the aluminum tube;

[0070] The unwinding device 120 is used for unwinding the aluminum tube;

[0071] The drawing machine 200 is connected to the rear end of the unwinding device 120 and is used to draw the aluminum tube;

[0072] The cutting machine 300 is connected to the rear end of the drawing machine 200 and is used to cut the aluminum tube into segments;

[0073] The discharging machine 400 is connected to the rear end of the cutting machine 300 and is used to receive and transport the aluminum tubes;

[0074] The straightening machine 500 is connected to the rear end of the discharging machine 400 and is used to straighten the aluminum tube.

[0075] 1) In the present invention, the pre-stage processing device includes heating the aluminum column, hot sawing the aluminum column into aluminum ingots, peeling the surface of the aluminum ingots, pultruding into aluminum tubes, and splicing the aluminum tubes, so as to produce continuous aluminum tubes. The above processes can all be carried out using existing processes and will not be described in detail here; further, the continuous aluminum tube provided by the pre-stage processing device is first cooled by water in a water tank.

[0076] Reference Figure 1-Figure 3, in some embodiments, a continuous aluminum tube automatic production line further includes a dryer 600 connected between the pre-treatment device and the winding device 110 for hot air drying of the aluminum tubes; as a preferred embodiment of the dryer 600, the dryer 600 includes a third rack 610, a blower device 620, an air duct 630, and an air guide seat 640; the blower device 620 is arranged on the third rack 610 for blowing hot air; the air duct 630 is arranged on the third rack 610 and one end thereof is communicated with the blower device 620; the air guide seat 640 is arranged on the third rack 610 and is communicated with the other end of the air duct 630, and an air outlet 650 is arranged on the air guide seat 640, and the aluminum tube is passed through the air guide seat 640; the hot air blown out by the blower device 620 can enter the air guide seat 640 through the air duct 630, and the aluminum tube is hot air dried through the air outlet 650 on the air guide seat 640.

[0077] Specifically, the aluminum tube made by the pultrusion process passes through the water tank for cooling and then passes through the air guide seat 640. Then the blower device 620 is started to blow hot air. The hot air enters the air guide seat 640 through the air duct 630 and is finally blown onto the aluminum tube through the air outlet 650, which can quickly dry the moisture on the surface of the aluminum tube by hot air; in some embodiments, the air guide seat 640 is provided with at least two and arranged along the length direction of the aluminum tube, which can enable the aluminum tube to pass through the hot air drying of at least two air guide seats 640, further improving the drying efficiency and drying effect of the aluminum tube; it can quickly dry the aluminum tube by hot air, not only improving the drying efficiency, but also improving the drying effect, which is beneficial to improving the processing quality of the aluminum tube and has very good practicability.

[0078] As a preferred embodiment of the air guide seat 640, the air guide seat 640 includes a first horizontal air plate 641, a vertical air plate 642, and a second horizontal air plate 643 that are sequentially communicated to form a U-shaped structure, and the aluminum tube passes through between the first horizontal air plate 641 and the second horizontal air plate 643; the lower end of the second horizontal air plate 643 has an air inlet 644 communicated with the other end of the air duct 630; the air outlet 650 is arranged on the first horizontal air plate 641, the vertical air plate 642, and / or the second horizontal air plate 643; during assembly, the aluminum tube is placed into the air guide seat 640 from the open end of the air guide seat 640, and the air outlet 650 is in a long and narrow shape, which can improve the wind speed when the hot air blows out through the air outlet 650, thereby further improving the drying efficiency and drying effect; furthermore, the air outlet 650 is located on the first horizontal air plate 641 and / or the second horizontal air plate 643 and at the front end and / or the rear end in the length direction of the aluminum tube, realizing multiple hot air drying of the aluminum tube.

[0079] In some embodiments, a flexible pad 770 is arranged in the air guide seat 640, and the aluminum tube is padded on the flexible pad 770; this setting can avoid friction damage between the aluminum tube and the air guide seat 640, which is beneficial to improving the forming quality of the aluminum tube.

[0080] In some embodiments, the third frame 610 is provided with an air collecting hood 680 which is covered on the air guide seat 640; this arrangement can make the blown hot air gather again in the air collecting hood 680 as much as possible, so as to achieve secondary hot air drying of the aluminum tube; in some embodiments, the air collecting hood 680 includes a base 681 and a flap 682 rotatably connected to the base 681.

[0081] 2)Reference Figure 1 and Figure 4 In some embodiments, the aluminum tube dried by the dryer 600 is coated with lubricating oil and pre-bent, then coiled on the winding device 110, moved to the front end of the drawing machine 200 by hoisting and used as the unwinding device 120, and then the aluminum tube coiled thereon is delivered to the drawing machine 200.

[0082] 3)Reference Figure 1 and Figure 5-Figure 6 In some embodiments, a continuous aluminum tube automatic production line also includes a speed adjustment machine 700 connected between the unwinding device 120 and the drawing machine 200, which is used to detect the conveying speed of the aluminum tube; the aluminum tube unwound by the unwinding device 120 first passes through the speed adjustment machine 700, and the speed adjustment machine 700 is linked with the drawing machine 200.

[0083] As a preferred embodiment of the speed adjusting machine 700, the speed adjusting machine 700 includes an adjusting seat 710, a first detection component 720 and a second detection component 730; a detection channel 750 is arranged on the adjusting seat 710, and the aluminum tube is passed through the detection channel 750; the first detection component 720 is arranged on one side of the detection channel 750; the second detection component 730 is arranged on the other side of the detection channel 750; the first detection component 720 can send an acceleration signal when detecting that the aluminum tube deviates to this side, and the second detection component 730 can send a deceleration signal when detecting that the aluminum tube deviates to this side.

[0084] Specifically, the aluminum tube unwound by the unwinding device 120 is passed through the detection channel 750. When the unwinding speed of the aluminum tube unwinding device increases, the aluminum tube will be offset to the side where the first detection component 720 is located, and then detected by the first detection component 720 and an acceleration message is sent to the pulling device. The pulling device increases the pulling speed to avoid bending of the aluminum tube. When the unwinding speed of the aluminum tube unwinding device decreases, the aluminum tube will be offset to the side where the second detection component 730 is located, and then detected by the second detection component 730 and a deceleration message is sent to the pulling device. The pulling device reduces the pulling speed to avoid pulling the aluminum tube.

[0085] In some embodiments, the first detection component 720 includes a plurality of first photoelectric switches 721 arranged at intervals perpendicular to the forward direction of the aluminum tube; the second detection component 730 includes a plurality of second photoelectric switches 731 arranged at intervals perpendicular to the forward direction of the aluminum tube.

[0086] Specifically, the first photoelectric switch 721 and the second photoelectric switch 731 are both set to 4. Under normal circumstances, the aluminum tube is located in the middle of the detection channel 750 for transportation. The more the aluminum tube is offset, the closer it is to the outer photoelectric switch. That is, the closer the photoelectric switch to the outer side detects the aluminum tube, the more the aluminum tube is offset.

[0087] In some embodiments, the adjustment seat 710 is provided with a first limit rotating wheel 761 and a second limit rotating wheel 762 arranged at intervals in the height direction, and the first limit rotating wheel 761 and the second limit rotating wheel 762 are connected to the adjustment seat 710 through a first adjustment structure 770; as a preferred embodiment of the first adjustment structure 770, the first adjustment structure 770 includes a first strip groove 771, a second strip groove 772, a first bolt assembly 773 and a second bolt assembly 774; the first strip groove 771 and the second The strip grooves 772 are arranged on both sides of the adjustment seat 710 and along the height direction; the first bolt assembly 773 is connected between one end of the first limiting wheel 761 and one end of the second limiting wheel 762 and the first strip groove 771; the second bolt assembly 774 is connected between the other end of the first limiting wheel 761 and the other end of the second limiting wheel 762 and the second strip groove 772; a detection channel 750 is constructed between the first limiting wheel 761, the second limiting wheel 762 and the adjustment seat 710.

[0088] Specifically, the positions of the first limit wheel 761 and the second limit wheel 762 on the adjustment seat 710 are adjusted by loosening and locking the first bolt assembly 773 and the second bolt assembly 774, thereby adapting to the height difference between the aluminum tube unwinding device and the drawing device. The aluminum tube abuts against the second limit wheel 762 at the lower end without affecting the forward conveying of the aluminum tube.

[0089] In some embodiments, the adjustment seat 710 is provided with a third limiting rotating wheel 763 and a fourth limiting rotating wheel 764 arranged at intervals along the width direction, and the third limiting rotating wheel 763 and the fourth limiting rotating wheel 764 are connected to the adjustment seat 710 through a second adjustment structure 780; as a preferred embodiment of the second adjustment structure 780, the second adjustment structure 780 includes a third strip groove 781, a fourth strip groove 782, a third bolt assembly 783 and a fourth bolt assembly 784; the third strip groove 781 and the fourth The strip grooves 782 are arranged on both sides of the adjustment seat 710 and along the width direction; the third bolt assembly 783 is connected between one end of the third limiting wheel 763 and one end of the fourth limiting wheel 764 and the third strip groove 781; the fourth bolt assembly 784 is connected between the other end of the third limiting wheel 763 and the other end of the fourth limiting wheel 764 and the fourth strip groove 782; a detection channel 750 is constructed between the third limiting wheel 763, the fourth limiting wheel 764 and the adjustment seat 710.

[0090] Specifically, the first limit wheel 761, the second limit wheel 762, the first adjustment structure 770, the third limit wheel 763, the fourth limit wheel 764 and the second adjustment structure 780 can be used in combination to define a complete detection channel 750, which can prevent the aluminum tube from being damaged by friction with the adjustment seat 40 in the horizontal and / or vertical directions. Of course, elastic pads can be installed on the outer walls of the first limit wheel 761, the second limit wheel 762, the third limit wheel 763 and the fourth limit wheel 764 to further reduce friction damage.

[0091] 4)Reference Figure 1 and Figure 7-Figure 8 In some embodiments, a continuous aluminum tube automatic production line further includes a head shrinking machine 800 connected between the unwinding device 120 and the drawing machine 200, for reducing the diameter of the front end of the aluminum tube.

[0092] ① As a preferred embodiment of the head shrinking machine 800, the head shrinking machine 800 includes a third driving device 810, a rotating seat 820, an directional disk 830, a guide disk 840 and a plurality of cutting dies 850; the third driving device 810 is connected to the rotating seat 820, and is used to drive the rotating seat 820 to rotate; the directional disk 830 is installed on the peripheral side of the rotating seat 820 and is circumferentially provided with a plurality of directional grooves 831, and the directional grooves 831 are arranged along the central radial direction of the directional disk 830; the cutting die 850 is arranged in the directional groove 831 and abuts against the rotating seat 820; the guide disk 840 is installed on the rotating seat 820 and is movably connected with the cutting die 850; the aluminum tube is passed through between the cutting dies 850, and the third driving device 810 drives the cutting die 850 to move inward when driving the rotating seat 820 to rotate forward, so as to extrude the aluminum tube to deform; or drives the cutting die 850 to move outward when driving the rotating seat 820 to rotate reversely, so as to make the aluminum tube move between the cutting dies 850.

[0093] Specifically, after pultrusion, the aluminum tube is sent to the head shrinking machine 800, and after the head shrinking process of the head shrinking machine 800, it is clamped and pulled by the tube drawing mechanism and sent to the drawing machine 200; Specifically, after pultrusion, the aluminum tube is inserted into the head shrinking space surrounded by multiple cutting dies 850. When the third driving device 810 drives the rotating seat 820 to rotate forward, it will drive the cutting die 850 to move in the directional groove 831 on the directional disk 830 toward the center of the directional disk 830 (the directional disk 830 and the pressure plate 881 do not move). The aluminum tube is then squeezed, causing the compression deformation of the aluminum tube to shrink; in the next movement stroke of the third drive device 810, the third drive device 810 drives the rotating seat 820 to rotate in the opposite direction, which will drive the cutting die 850 to move in the directional groove 831 on the directional disk 830 away from the center of the directional disk 830 (the directional disk 830 and the pressure plate 881 do not move), thereby making the cutting die 850 move away from the aluminum tube, and the tube drawing mechanism can grab the part squeezed by the cutting die 850 to pull the aluminum tube to the drawing machine 200.

[0094] ② In some embodiments, a plurality of first arc-shaped orientation grooves 861 are provided on the inner wall of the rotating seat 820, a plurality of second arc-shaped orientation grooves 862 are provided on the guide plate 840, one end of the cutting die 850 extends into the first arc-shaped orientation groove 861 and a guide block 851 extending into the second arc-shaped orientation groove 862 is provided thereon; when the rotating seat 820 rotates forward, one end of the cutting die 850 will be pushed up through the first arc-shaped orientation groove 861 thereon, so that the rotational motion of the rotating seat 820 and the guide plate 840 is converted into a linear motion of the cutting die 850 in the orientation groove 831; and the rotating When the seat 820 rotates in the opposite direction, the second arc-shaped directional groove 862 on the guide plate 840 will drive the movement of the guide block 851 and the cutting die 850, so that the rotational movement of the rotating seat 820 and the guide plate 840 is converted into the linear movement of the cutting die 850 in the directional groove 831, and finally the reciprocating movement of the cutting die 850 in the directional groove 831 is realized; the above structure can realize the automatic shrinking of the aluminum tube, which is convenient for the tube drawing mechanism to clamp and pull the aluminum tube, which not only saves labor costs, but also makes the front and rear connection of the aluminum tube in the drawing machine 200 smoother, which is beneficial to improving the production efficiency of the aluminum tube.

[0095] ③ As a preferred embodiment of the third driving device 810, the third driving device 810 includes a first motor 811, a reducer 812, a driving gear 813 and a driven gear 814. The output end of the first motor 811 is connected to the driving gear 813 through the reducer 812, and the driven gear 814 is connected to the rotating seat 820 and meshes with the driving gear 813; in this setting, the reducer 812 is driven to move by the first motor 811, and the driving gear 813 is driven to rotate after being decelerated by the reducer 812. The driving gear 813 drives the rotating seat 820 to rotate through the driven gear 814, and the rotating seat 820 is driven to move forward or reversely by changing the rotation direction of the first motor 811; in some embodiments, the driven gear 814 and the rotating seat 820 are integrally formed.

[0096] ④ In some embodiments, the guide plate 840 is connected to the rotating seat 820 through the positioning structure 870 so that the guide plate 840 and the rotating seat 820 rotate synchronously; as a preferred embodiment of the positioning structure 870, the positioning structure 870 is configured as a positioning pin.

[0097] ⑤ In some embodiments, the directional disk 830 is located on one side of the rotating seat 820, and the guide disk 840 is located on the other side of the rotation, and also includes a pressure plate 881 connected to the directional disk 830 through a detachable structure 880 and pressed on the guide disk 840; as a preferred embodiment of the detachable structure 880, the detachable structure 880 is configured as a bolt connection structure.

[0098] ⑥ In some embodiments, an automatic shrinking machine for aluminum tubes further includes a protective cover 890 which is arranged on the third driving device 810 , the rotating seat 820 , the directional disk 830 , the guide disk 840 and a plurality of cutting dies 850 .

[0099] 5)Reference Figure 1 and Figure 9-Figure 16 In some embodiments, the drawing machine 200 includes a first frame 210 and a die base 220, a first driving device 230, a first belt pulling device 240, a second belt pulling device 250 and an adjusting device 260 arranged on the first frame 210; the die base 220 is located at the front end; the first driving device 230 is connected to the first belt pulling device 240 and the second belt pulling device 250; the first belt pulling device 240 and the second belt pulling device 250 are connected to the rear end of the die base 220 and are arranged opposite to each other in the vertical direction; the adjusting device 260 is respectively connected to the first belt pulling device 240 and the second belt pulling device 250, and is used to adjust the distance between the first belt pulling device 240 and the second belt pulling device 250; the aluminum tube is inserted between the first belt pulling device 240 and the second belt pulling device 250 to draw the aluminum tube through the die base 220.

[0100] In the present invention, the aluminum tube after pultrusion is sent into the die base 220. Specifically, the die base 220 includes an inner die and an outer die. The aluminum tube is inserted into the inner die, and then the inner die and the aluminum tube are inserted into the outer die together, and then pulled between the first belt pulling device 240 and the second belt pulling device 250. The adjustment device 260 is used to adjust the distance between the first belt pulling device 240 and the second belt pulling device 250 so that the first belt pulling device 240 and the second belt pulling device 250 can be pressed against the aluminum tube, and then the first driving device 230 is started to drive the first belt pulling device 240 and the second belt pulling device 250 to rotate, so as to Fig. 9 Taking the perspective of as an example, the first driving device 230 drives the first belt pulling device 240 to rotate counterclockwise and drives the second belt pulling device 250 to rotate clockwise, so as to pull the aluminum tube backward; after the die base 220 is squeezed, the diameter and wall thickness of the aluminum tube are changed, and the drawing process of the aluminum tube is completed.

[0101] ①Reference Figure 9-10 In some embodiments, the first driving device 230 includes a variable frequency motor 231 and a dual output shaft reducer 232 connected to the output end of the variable frequency motor 231, the first output shaft of the dual output shaft reducer 232 is connected to the first belt pulling device 240, and the second output shaft is connected to the second belt pulling device 250; by setting a dual output shaft reducer 232, the first belt pulling device 240 and the second belt pulling device 250 can be driven at the same time.

[0102] ②Reference Figure 9-11 as well as Fig.13 In some embodiments, a crawler drawing machine further includes a third straightening device 271 connected to the front end of the die base 220 for straightening the front end of the aluminum tube; and / or further includes a fourth straightening device 272 connected between the die base 220 and the first belt pulling device 240 and the second belt pulling device 250 for straightening the rear end of the aluminum tube; specifically, the third straightening device 271 includes two groups of first straightening wheel assemblies 2711, one group of second straightening wheel assemblies 2712, one group of third straightening wheel assemblies 2713 and two groups of fourth straightening wheel assemblies 2714 arranged in sequence, each straightening wheel assembly The wheel assembly includes a wheel body, a screw and a handwheel. The handwheel is turned to drive the screw to rotate and convert it into linear motion of the wheel body. The second straightening wheel assembly 2712 and the third straightening wheel assembly 2713 are respectively located on both sides of the aluminum tube and are staggered in the length direction of the aluminum tube, so as to achieve straightening of the front end of the aluminum tube; the fourth straightening device 272 includes two groups of fifth straightening wheel assemblies. The fifth straightening wheel assemblies each include a wheel body 2721, a screw and an adjusting knob 2722. The adjusting knob 2722 is turned to drive the screw to rotate and convert it into linear motion of the wheel body 2721, so as to achieve straightening of the rear end of the aluminum tube.

[0103] ③Reference Figure 9-10 as well as Fig.12 In some embodiments, the mold base 220 is connected to the first frame 210 through a fine-tuning device 280, which is used to adjust the position of the mold base 220 in the horizontal and / or vertical direction; specifically, the fine-tuning device 280 includes an adjustment seat 281, two groups of fifth slide rail mechanisms 282 and two groups of sixth slide rail mechanisms 283, the mold base 220 is installed on the adjustment seat 281 through the two groups of fifth slide rail mechanisms 282, and the adjustment seat 281 is installed on the first frame 210 through the two groups of sixth slide rail mechanisms 283, wherein the fifth slide rail mechanism 282 is arranged in the vertical direction and the sixth slide rail mechanism 283 is arranged in the horizontal direction; it can achieve fine-tuning of the position of the aluminum tube, so that the aluminum tube is better relative to the first belt pulling device 240 and the second belt pulling device 250.

[0104] ④Reference Fig. 9 and Fig.13 In some embodiments, a continuous aluminum tube automatic production line further includes a cooling device 270 connected between the die base 220 and the first belt pulling device 240 and the second belt pulling device 250 for cooling the drawn aluminum tube.

[0105] Specifically, the cooling device 270 includes an upper cooling seat 271, a lower cooling seat 272 and ventilation holes 273 arranged on the upper cooling seat 271 and / or the lower cooling seat 272. The upper cooling seat 271 and the lower cooling seat 272 together enclose a cooling groove. The aluminum tube is inserted into the cooling groove. The ventilation holes are connected to the cooling groove and connected to an external air source. The external air source introduces air into the cooling groove through the ventilation holes, thereby achieving air cooling of the aluminum tube, which can prevent the temperature of the aluminum tube after being drawn by the mold base 220 from being too high and causing damage to the first belt pulling device 240 and the second belt pulling device 250; of course, the cooling device 270 can also adopt cooling methods such as water cooling.

[0106] ⑤Reference Figure 9-10 , Figure 13-Figure 16In some embodiments, the first belt pulling device 240 includes a first driving wheel 241, a first driven wheel 242 and a first belt 243. The first driving wheel 241 is located on one side of the first frame 210 and is connected to the first driving device 230. The first driven wheel 242 is located on the other side of the first frame 210. The first belt 243 is sleeved on the first driving wheel 241 and the first driven wheel 242 and a first drawing groove 244 is provided on the outer wall thereof, and the aluminum tube extends into the first drawing groove 244. Preferably, the second belt pulling device 250 includes a second driving wheel 251, a second driven wheel 252 and a second belt 253. The second driving wheel 251 is located on one side of the first frame 210 and is connected to the first driving device 230. The first driving device 230 is connected, and the second driven wheel 252 is located on the other side of the first frame 210. The second belt 253 is sleeved on the second driving wheel 251 and the second driven wheel 252 and a second drawing groove 254 is provided on the outer wall thereof, and the aluminum tube extends into the second drawing groove 254; it should be noted that the outer wall of the first driving wheel 241, the outer wall of the first driven wheel 242 and the inner wall of the first belt 243 are provided with a first V-shaped groove 245, and the outer wall of the second driving wheel 251, the outer wall of the second driven wheel 252 and the inner wall of the second belt 253 are provided with a second V-shaped groove 255, which can play a role in limiting the belt and preventing the belt from swinging sideways relative to the driving wheel and the driven wheel during rotation.

[0107] ⑥Reference Figure 9-10 , Figure 13-Figure 16 In some embodiments, the adjustment device 260 includes a plurality of first adjustment components 261 connected to the first belt pulling device 240 and arranged at intervals along its length direction, and a plurality of second adjustment components 262 connected to the second belt pulling device 250 and arranged at intervals along its length direction. The first adjustment components 261 and the second adjustment components 262 can adjust the distance between the first belt pulling device 240 and the second belt pulling device 250.

[0108] As a preferred embodiment of the first adjustment component 261, the first adjustment component 261 includes a second movable frame 2611, a first screw rod 2612, a second screw rod 2613, a first slide rail mechanism 2614, a second slide rail mechanism 2615, a first hand wheel 2616, a second hand wheel 2617 and a plurality of first pressure wheels 2618; the first screw rod 2612 and the second screw rod 2613 are respectively threadedly connected to the two sides of the second movable frame 2611; the first slide rail mechanism 2614 and the second slide rail mechanism 2615 are respectively Connected between the two sides of the second movable frame 2611 and the first frame 210; the first hand wheel 2616 is connected to the first screw rod 2612, and the second hand wheel 2617 is connected to the second screw rod 2613; the first pressure wheel 2618 is installed on the second movable frame 2611 and is arranged at intervals along the length direction of the first belt pulling device 240; the second movable frame 2611 can drive the first pressure wheel 2618 to approach or move away from the second belt pulling device 250 when the first hand wheel 2616 and / or the second hand wheel 2617 are rotated.

[0109] As a preferred embodiment of the second adjustment component 262, the second adjustment component 262 includes a third movable frame 2621, a third slide rail mechanism 2622, a fourth slide rail mechanism 2623, a first cylinder 2624, a second cylinder 2625 and a plurality of second pressure wheels 2626; the third slide rail mechanism 2622 and the fourth slide rail mechanism 2623 are respectively connected between the two sides of the third movable frame 2621 and the first frame 210; the first cylinder 2624 and the second cylinder 2625 are installed on the first frame 210 and are respectively connected to the two sides of the third movable frame 2621; the second pressure wheels 2626 are installed on the third movable frame 2621 and are arranged at intervals along the length direction of the second belt pulling device 250; the third movable frame 2621 can drive the second pressure wheels 2626 to approach or move away from the first belt pulling device 240 when the first cylinder 2624 and / or the second cylinder 2625 are actuated.

[0110] Specifically, the first adjustment component 261 and the second adjustment component 262 are preferably set to three groups, which can increase the adjustable range of the aluminum tube during the drawing process, that is, three-stage adjustment, and the second adjustment component 262 is realized by the cylinder on the third movable frame 2621, which is mainly used to tighten the second belt 253; the first adjustment component 261 is used to fine-tune the distance between the first belt 243 and the second belt 253, that is, to meet the drawing requirements of aluminum tubes with different diameters; it should be noted that the drawing machine provided by the present invention can be used in combination with multiple units to continuously improve the accuracy by gradually reducing the tube diameter and tube thickness, and is preferably used in combination with two drawing machines.

[0111] ⑦Reference Figure 1-Figure 2 as well as Figure 6In some embodiments, an auxiliary wheel 2619 is provided between the second movable frame 2611 and the first belt pulling device 240; the above structure can realize continuous drawing of the aluminum tube, which not only improves the drawing efficiency of the aluminum tube, but also improves the drawing accuracy of the aluminum tube to meet the use requirements.

[0112] 6)Reference Figure 1 In some embodiments, two drawing machines 200 are provided and are spaced between the unwinding device 120 and the cutting machine 300 along the conveying direction of the aluminum tube; the aluminum tube after pultrusion is drawn twice, which can further improve the accuracy of the aluminum tube. For example, the size of the pultruded aluminum tube is Φ16mm*1.0mm. After the drawing process of the first drawing machine 200, the size of the aluminum tube is Φ14mm*0.7mm. After the drawing process of the second drawing machine 200, the size of the aluminum tube is Φ12mm*0.5mm.

[0113] 8)Reference Figure 1 and Figure 17-Figure 18 In some embodiments, the cutting machine 300 includes a second frame 310, a first movable frame 320, a second driving device 330, a metering device 340 and a cutting device 350; a feed clamp 311 and a discharge clamp 312 are provided on the second frame 310; the first movable frame 320 is installed on the second frame 310, and the aluminum tube is passed through the feed clamp 311, the first movable frame 320 and the discharge clamp 312; the second driving device 330 is installed on the second frame 310 and connected to the first movable frame 320, and is used to drive the first movable frame 320 to move back and forth between the feed clamp 311 and the discharge clamp 312; the metering device 340 is installed on the second frame 310, and is used to detect the length of the aluminum tube conveying; the cutting device 350 is arranged on the first movable frame 320, and is used to cut the aluminum tube.

[0114] ① Specifically, the aluminum tube made in the drawing process is fed into the first movable frame 320 through the feed clamp seat 311, and then inserted into the discharge clamp seat 312; a pressing mechanism is set on the discharge clamp seat 312 to drive the aluminum tube to move forward or an external pulling mechanism is used to pull the aluminum tube forward; when cutting the aluminum tube, the moving speed of the aluminum tube is first obtained, and then the moving speed of the second driving device 330 is set for adaptation, the metering device 340 detects the length of the aluminum tube conveying in real time, and at the same time, the first movable frame 320 is driven by the second driving device 330 to move to the corresponding position along the moving direction of the aluminum tube, and then the cutting device 350 is started to cut the aluminum tube, and then it returns to the starting position after the cutting is completed. It should be noted that the aluminum tube is always in a forward moving state, that is, continuous cutting is achieved; through the above structure, not only can the aluminum tube be cut without stopping the machine, thereby improving production efficiency, but also the round-trip distance of the movable frame is reduced, which is beneficial to energy saving and emission reduction, and has very good practicality.

[0115] ② In one embodiment, the feed clamp 311 includes a first bracket 3111, a first pressing wheel 3112 and a second pressing wheel 3113, the first bracket 3111 is arranged on the second frame 310, the first pressing wheel 3112 and the second pressing wheel 3113 are installed on the first bracket 3111 and are spaced apart in the vertical direction, and the aluminum tube is passed through the first pressing wheel 3112 and the second pressing wheel 3113; further, the metering device 340 is configured as an encoder and is coaxially connected to the second pressing wheel 3113, which can obtain the rotation speed of the second pressing wheel 3113, and then calculate the distance the aluminum tube moves forward.

[0116] ③ In one embodiment, the second pressing wheel 3113 is located below the first pressing wheel 3112 and is provided with a first annular guide groove 3114; the first annular guide groove 3114 is provided to limit the position of the aluminum tube to prevent the aluminum tube from deviating to one side during movement.

[0117] ④ In one embodiment, the discharge clamp 312 includes a second bracket 3121, a third pressure wheel 3122 and a fourth pressure wheel 3123, the second bracket 3121 is arranged on the second frame 310, the third pressure wheel 3122 and the fourth pressure wheel 3123 are installed on the second bracket 3121 and are arranged at intervals in the vertical direction, and the aluminum tube is passed between the third pressure wheel 3122 and the fourth pressure wheel 3123.

[0118] ⑤ In one embodiment, the fourth pressing wheel 3123 is located below the third pressing wheel 3122 and is provided with a second annular guide groove 3124; the second annular guide groove 3124 is provided to limit the position of the aluminum tube to prevent the aluminum tube from deviating to one side during movement.

[0119] ⑥ In one embodiment, the second driving device 330 includes a second motor 331, a first synchronous gear 332, a second synchronous gear 333, a synchronous belt 334 and a drag chain 335; the second motor 331 is mounted on the second frame 310; the first synchronous gear 332 is mounted on the output shaft of the motor; the second synchronous gear 333 is rotatably connected to the second frame 310; the synchronous belt 334 is sleeved on the first synchronous gear 332 and the second synchronous gear 333; one end of the drag chain 335 is connected to the synchronous belt 334, and the other end is connected to the first movable frame 320.

[0120] ⑦ Preferably, the cutting device 350 includes a cylinder 351 and a cutter 352 connected to the output end of the cylinder 351.

[0121] ⑧ In one embodiment, the first movable frame 320 is connected to the second frame 310 via a guide rail 370; the movement of the first movable frame 320 is guided by providing the guide rail 370.

[0122] ⑨ The second frame 310 is provided with a positive limit detection switch 381, an origin detection switch 382 and a negative limit detection switch 383, which are used to provide a positive limit position signal, an origin position signal and a negative limit position signal respectively.

[0123] 9)Reference Figure 1 and Figure 19-22 In some embodiments, the straightening machine 500 includes a first straightening device 510 and a second straightening device 520; the discharging machine 400 includes a flipping discharging device 410, a first return material conveying device 420, a second return material conveying device 430, a first discharging conveying device 440 and a second discharging conveying device 450; the flipping discharging device 410 is connected to the cutting machine 300 that conveys the aluminum tube along the first direction M; the first return material conveying device 420 and the second return material conveying device 430 are arranged on the left and right sides of the flipping discharging device 410, and are used to convey the aluminum tube along the second direction N, which is opposite to the first direction M; the first discharging conveying device 440 is connected between the end of the first return material conveying device 420 and the first straightening device 510, and is used to convey the aluminum tube along the first direction M to the first straightening device 510; the second discharging conveying device 450 is connected between the end of the second return material conveying device 430 and the second straightening device 520, and is used to convey the aluminum tube along the first direction M to the second straightening device 520.

[0124] ① The discharge machine 400 provided by the present invention is connected between the cutting machine 300 and the straightening machine 500. The cutting machine 300 is located in the middle, and can cut the aluminum tube after pultrusion into a fixed length and then convey it along the first direction M. The flip discharge device 410 is connected to the discharge end of the cutting machine 300, and can receive the cut aluminum tube and alternately convey the aluminum tube to the first return material conveying device 420 and the second return material conveying device 430 located on the left side of the flip discharge device 410. The first return material conveying device 420 and the second return material conveying device 430 can convey the received aluminum tube along the second direction N; further, the first discharge conveying device 440 is connected to the first return material conveying device 420. The discharging end is located on the outside of the first return material conveying device 420, and can receive the aluminum tube transferred via the first return material conveying device 420 and convey it along the first direction M to the first straightening device 510 for straightening. The second discharging conveying device 450 is connected to the discharging end of the second return material conveying device 430 and is located on the outside of the second return material conveying device 430. It can receive the aluminum tube transferred via the second return material conveying device 430 and convey it along the first direction M to the second straightening device 520 for straightening. By setting up a return material conveying device to return the aluminum tube, not only can the efficiency between the pultrusion molding process and the straightening process be matched, but also the site occupancy can be greatly reduced, which has very good practicality.

[0125] ② As a preferred embodiment of the flipping and discharging device 410, the flipping and discharging device 410 includes a second driving component 411, a push rod 412 and a flipping bucket 413; one end of the push rod 412 is connected to the output end of the second driving component 411, and the other end is connected to the flipping bucket 413; the opening end of the flipping bucket 413 faces upward, and the cutting machine 300 can transport the aluminum tube into the flipping bucket 413; the second driving component 411 can drive the flipping bucket 413 to flip to the left or right through the push rod 412, so that the aluminum tube is alternately transported to the first return material conveying device 420 and the second return material conveying device 430; it should be noted that the second driving component 411 is preferably configured as a cylinder.

[0126] ③ As a preferred embodiment of the first return material conveying device 420, the first return material conveying device 420 includes a third drive assembly (not shown in the figure) and a plurality of supporting rollers 421 connected to the third drive assembly and arranged at intervals of N along the second direction, and the supporting rollers 421 are used to support the aluminum tubes; in some embodiments, the supporting rollers 421 are provided with an annular limiting groove 422 for placing the aluminum tubes.

[0127] ④ In some embodiments, a continuous aluminum tube automatic production line also includes a first partitioning and unloading device 460 and a second partitioning and unloading device 470, the first partitioning and unloading device 460 is connected between the first return material conveying device 420 and the first discharge material conveying device 440, and the second partitioning and unloading device 470 is connected between the second return material conveying device 430 and the second discharge material conveying device 450.

[0128] As a preferred embodiment of the first partitioning and unloading device 460, the first partitioning and unloading device 460 includes a first driving component 461, a first transmission component 462, a first rotary belt 463 and a plurality of first partitions 464; the first driving component 461 is connected to one end of the first transmission component 462; the first rotary belt 463 is rotatably connected between the first return conveying device 420 and the first discharge conveying device 440 and is connected to the other end of the first transmission component 462; the first partitions 464 are arranged at intervals along the rotation direction of the first rotary belt 463 to form a plurality of first unloading positions 465; the first return conveying device 420 can convey the aluminum tube to the first unloading position 465, and transfer it to the first discharge conveying device 440 through the first rotary belt 463.

[0129] Specifically, the first return material conveying device 420 provides aluminum tubes one by one and enters the nearest first unloading position 465, and the first unloading position 465 is driven by the first driving component 461 to move toward the first discharging conveying device 440 by a distance of the first unloading position 465, so that the next first unloading position 465 can receive the next aluminum tube from the first return material conveying device 420, and this cycle is repeated until the first first unloading position 465 moves close and transfers the aluminum tube on it to the first discharging conveying device 440; it should be noted that the first driving component 461 is preferably configured as a motor, and the first transmission component 462 is preferably configured as a sprocket structure.

[0130] As a preferred embodiment of the second dividing and unloading device 470, the second dividing and unloading device 470 includes a fourth driving component 471, a second transmission component 472, a second rotary belt 473 and a plurality of second partitions 474; the fourth driving component 471 is connected to one end of the second transmission component 472; the second rotary belt 473 is rotatably connected between the second return material conveying device 430 and the second discharge material conveying device 450 and is connected to the other end of the second transmission component 472; the second partitions 474 are arranged at intervals along the rotation direction of the second rotary belt 473 to form a plurality of second unloading positions 475; the second return material conveying device 430 can convey the aluminum tube to the second unloading position 475, and transfer it to the second discharge material conveying device 450 through the second rotary belt 473; it should be noted that the working principle of the second dividing and unloading device 470 is consistent with that of the first dividing and unloading device 460, which will not be repeated here.

[0131] 10) The advantages of the present invention are: the above structure can reduce the number of drawing operations of the drawing machine, reduce the waste of aluminum tubes, and also improve the drawing accuracy, so as to realize automated assembly line production, reduce production costs and improve production efficiency, thus meeting usage requirements.

[0132] Of course, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications and substitutions are all included in the scope defined by the claims of this application.

Claims

1. A continuous aluminum tube automatic production line, characterized by: It comprises a pre-processing device, a winding device (110), an unwinding device (120), a drawing machine (200), a cutting machine (300), a discharging machine (400) and a straightening machine (500); The pre-treatment device is used to provide a continuous aluminum tube; The winding device (110) is used for winding the aluminum tube; The unwinding device (120) is used for unwinding the aluminum tube; The drawing machine (200) is connected to the rear end of the unwinding device (120) and is used to draw the aluminum tube; The cutting machine (300) is connected to the rear end of the drawing machine (200) and is used to cut the aluminum tube into sections; The discharging machine (400) is connected to the rear end of the cutting machine (300) and is used to receive and transport the aluminum tubes; The straightening machine (500) is connected to the rear end of the discharging machine (400) and is used to straighten the aluminum tube.

2. The automatic production line for continuous aluminum tubes according to claim 1 is characterized in that: The drawing machine (200) comprises a first frame (210), a die base (220) arranged on the first frame (210), a first driving device (230), a first belt drawing device (240), a second belt drawing device (250), and an adjusting device (260); The mold base (220) is located at the front end; The first driving device (230) is connected to the first belt pulling device (240) and the second belt pulling device (250); The first belt pulling device (240) and the second belt pulling device (250) are connected to the rear end of the mold base (220) and are arranged opposite to each other in the vertical direction; The adjusting device (260) is connected to the first belt pulling device (240) and the second belt pulling device (250) respectively, and is used to adjust the distance between the first belt pulling device (240) and the second belt pulling device (250); The aluminum tube is inserted between the first belt pulling device (240) and the second belt pulling device (250) so as to pull the aluminum tube through the mold base (220).

3. The automatic production line for continuous aluminum tubes according to claim 2 is characterized in that: It also includes a cooling device (270) connected between the die base (220) and the first belt pulling device (240) and the second belt pulling device (250) and used for cooling the aluminum tube after drawing.

4. The automatic continuous aluminum tube production line according to claim 1 is characterized in that: The cutting machine (300) comprises a second frame (310), a first movable frame (320), a second driving device (330), a metering device (340) and a cutting device (350); The second frame (310) is provided with a feeding clamp seat (311) and a discharging clamp seat (312); The first movable frame (320) is installed on the second frame (310), and the aluminum tube is passed through the feed clamp seat (311), the first movable frame (320) and the discharge clamp seat (312); The second driving device (330) is installed on the second frame (310) and connected to the first movable frame (320), and is used to drive the first movable frame (320) to move back and forth between the feed clamp seat (311) and the discharge clamp seat (312); The metering device (340) is installed on the second frame (310) and is used to detect the length of the aluminum tube conveyed; The cutting device (350) is arranged on the first movable frame (320) and is used for cutting the aluminum tube.

5. The automatic continuous aluminum tube production line according to claim 1 is characterized in that: The straightening machine (500) comprises a first straightening device (510) and a second straightening device (520); the discharging machine (400) comprises a turning discharging device (410), a first return material conveying device (420), a second return material conveying device (430), a first discharging conveying device (440) and a second discharging conveying device (450); The turning and discharging device (410) is connected to the cutting machine (300) that conveys the aluminum tube along the first direction M; The first return material conveying device (420) and the second return material conveying device (430) are respectively arranged on the left and right sides of the flipping and discharging device (410), and are used to convey the aluminum tube along a second direction N, and the second direction N is opposite to the first direction M; The first material discharging conveying device (440) is connected between the end of the first material returning conveying device (420) and the first straightening device (510), and is used to convey the aluminum tube to the first straightening device (510) along a first direction M; The second discharge conveying device (450) is connected between the end of the second return conveying device (430) and the second straightening device (520) and is used to convey the aluminum tube along the first direction M to the second straightening device (520).

6. The automatic continuous aluminum tube production line according to claim 1 is characterized in that: It also includes a first partitioning and unloading device (460) and a second partitioning and unloading device (470), wherein the first partitioning and unloading device (460) is connected between the first return material conveying device (420) and the first discharge material conveying device (440), and the second partitioning and unloading device (470) is connected between the second return material conveying device (430) and the second discharge material conveying device (450).

7. The automatic continuous aluminum tube production line according to claim 6 is characterized in that: The first separating and unloading device (460) comprises a first driving assembly (461), a first transmission assembly (462), a first rotating belt (463) and a plurality of first partitions (464); The first driving assembly (461) is connected to one end of the first transmission assembly (462); The first rotary belt (463) is rotatably connected between the first return conveying device (420) and the first discharge conveying device (440) and is connected to the other end of the first transmission assembly (462); The first partitions (464) are arranged at intervals along the rotation direction of the first rotary belt (463) to form a plurality of first material discharge positions (465); The first return material conveying device (420) can convey the aluminum tube to the first unloading position (465), and transfer it to the first discharge material conveying device (440) through the first rotary belt (463).

8. The automatic continuous aluminum tube production line according to claim 1 is characterized by: It also includes a drying machine (600) connected between the pre-treatment device and the winding device (110) and used for hot air drying the aluminum tube.

9. The automatic continuous aluminum tube production line according to claim 1 is characterized in that: It also includes a speed adjustment machine (700) connected between the unwinding device (120) and the drawing machine (200) and used to detect the conveying speed of the aluminum tube.

10. The automatic continuous aluminum tube production line according to claim 1, characterized in that: It also includes a head shrinking machine (800) connected between the unwinding device (120) and the drawing machine (200) and used to reduce the diameter of the front end of the aluminum tube.

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