Aluminum pipe disc extruding and pulling production line

Abstract

The utility model discloses an aluminum pipe coil extruding and drawing production line which 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] This utility model relates to the field of aluminum tube processing equipment, and in particular to an aluminum tube disc extrusion and drawing production line. Background Technology

[0002] The production process of aluminum tubes includes heat treatment of aluminum columns, hot sawing, pultrusion molding, drawing, and straightening. In existing aluminum tube production lines, aluminum columns are first processed into aluminum ingots, then pultruded into aluminum tubes of fixed lengths before drawing to improve the precision of the aluminum tubes. Since the aluminum tubes are segmented, this type of production line requires the aluminum tubes to be shortened before being gripped and dragged forward during drawing, resulting in the discarding of the front end of each segment, causing some waste. Furthermore, each segment of aluminum tube requires repeated shortening, die fitting, and drawing operations, which consumes a lot of time and labor costs. In addition, each segment of aluminum tube requires manual intervention, making it difficult to achieve automated production. Therefore, there is an urgent need for an aluminum tube coil extrusion and coil drawing production line to solve the above problems. Utility Model Content

[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 aluminum tube disc extrusion and drawing production line.

[0004] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: an aluminum tube coil extrusion and drawing production line, including a pre-processing device, a winding device, an unwinding device, a drawing machine, a cutting machine, a discharge machine and a straightening machine;

[0005] The pre-processing unit is used to provide a continuous flow of aluminum tubes;

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

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

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

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

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

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

[0012] As one of the preferred embodiments of this utility model, the drawing machine includes a first frame and a mold base, a first drive device, a first belt drawing device, a second belt drawing device, and an adjustment device disposed on the first frame;

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

[0014] The first drive unit 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 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] An aluminum tube is inserted between the first belt pulling device and the second belt pulling device to pull the aluminum tube through the mold base.

[0018] As one of the preferred embodiments of this utility model, an aluminum tube extrusion and drawing production line further includes a cooling device connected between the die holder and the first belt drawing device and the second belt drawing device, for cooling the drawn aluminum tube.

[0019] As one of the preferred embodiments of this utility model, the cutting machine includes a second frame, a movable frame, a second drive device, a metering device, and a cutting device;

[0020] The second frame is equipped with a feed clamp and a discharge clamp;

[0021] The movable frame is mounted on the second frame, and the aluminum tube passes through the feed clamp, the movable frame, and the discharge clamp.

[0022] The second drive unit is mounted 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 and the discharge clamp.

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

[0024] The cutting device is mounted on a movable frame and is used to cut aluminum tubes.

[0025] As one of the preferred embodiments of this utility model, the straightening machine includes a first straightening device and a second straightening device; the discharge machine includes a flipping discharge device, a first return material conveying device, a second return material conveying device, a first discharge material conveying device, and a second discharge material conveying device.

[0026] The flipping discharge device is connected to the cutting machine that conveys aluminum tubes along the first direction M;

[0027] The first and second return material conveying devices are located on the left and right sides of the overturning discharge device, respectively, and are used to convey aluminum tubes along the second direction N, which is opposite to the first direction M.

[0028] The first discharge conveying device is connected between the end of the first return conveying device and 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 discharge conveying device is connected between the end of the second return conveying device and the second straightening device, and is used to convey the aluminum tube to the second straightening device along the first direction M.

[0030] As one of the preferred embodiments of this utility model, an aluminum tube coil extrusion and drawing production line further includes a first separating feeding device and a second separating feeding device. The first separating feeding device is connected between the first return material conveying device and the first discharge material conveying device, and the second separating feeding 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 this utility model, the first separating and feeding device includes a first driving component, a first transmission component, a first rotary belt, and a plurality of first partitions;

[0032] One end of the first drive assembly is connected to the first transmission assembly;

[0033] The first rotary belt is rotatably connected between the first return conveyor and the first discharge conveyor 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 rotating belt to form a number of first unloading positions;

[0035] The first return conveyor can transport aluminum tubes to the first unloading position and then transfer them to the first discharge conveyor via the first rotary belt.

[0036] As one of the preferred embodiments of this utility model, an aluminum tube coil extrusion and drawing production line also includes a dryer connected between the pre-processing device and the winding device, for hot air drying of the aluminum tube.

[0037] As one of the preferred embodiments of this utility model, an aluminum tube coil extrusion and drawing production line also includes a speed adjustment machine connected between the unwinding device and the drawing machine, used to detect the conveying speed of the aluminum tube.

[0038] As one of the preferred embodiments of this utility model, an aluminum tube coil extrusion and drawing production line also includes a shrinking machine connected between the unwinding device and the drawing machine, used to reduce the diameter of the front end of the aluminum tube.

[0039] The beneficial effects of this utility model are as follows: An aluminum tube coil extrusion and drawing production line includes a pre-processing device, a winding device, an unwinding device, a drawing machine, a cutting machine, a discharge machine, and a straightening machine; the pre-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 and is used to draw the aluminum tubes; the cutting machine is connected to the rear end of the drawing machine and is used to cut the aluminum tubes into segments; the discharge machine is connected to the rear end of the cutting machine and is used to receive and transfer the aluminum tubes; the straightening machine is connected to the rear end of the discharge machine and is used to straighten the aluminum tubes; the above structure can reduce the number of drawing operations of the drawing machine, reduce the waste of aluminum tubes, and improve the drawing accuracy, realize automated production line production, reduce production costs while improving production efficiency, and meet the needs of use. Attached Figure Description

[0040] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0041] Figure 1 This is an aluminum tube coil extrusion and drawing production line;

[0042] Figure 2 This is a schematic diagram of the dryer's structure;

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

[0044] Figure 4 This is a schematic diagram of the winding device.

[0045] Figure 5 This is a schematic diagram of the first structure of the speed regulating machine;

[0046] Figure 6 This is a schematic diagram of the second structure of the speed regulator;

[0047] Figure 7 This is a schematic diagram of the head-shrinking machine.

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

[0049] Figure 9 This is a schematic diagram of the first structure of the drawing machine;

[0050] Figure 10 This is a schematic diagram of the second structure of the drawing machine;

[0051] Figure 11 for Figure 9 A magnified view of a portion of region A in the middle;

[0052] Figure 12 for Figure 10A magnified view of a portion of region B in the middle;

[0053] Figure 13 for Figure 9 A magnified view of a portion of region C in the middle;

[0054] Figure 14 for Figure 9 A magnified view of a portion of region D in the middle;

[0055] Figure 15 for Figure 9 A magnified view of a portion of region E in the middle;

[0056] Figure 16 for Figure 9 A magnified view of a portion of region F in the middle;

[0057] Figure 17 This is a schematic diagram of the first structure of the cutting machine;

[0058] Figure 18 This is a schematic diagram of the second structure of the cutting machine;

[0059] Figure 19 This is a schematic diagram of the first structure of the discharge machine;

[0060] Figure 20 This is a schematic diagram of the second structure of the discharge machine;

[0061] Figure 21 for Figure 19 A magnified view of a portion of region G in the middle;

[0062] Figure 22 for Figure 19 A magnified view of a portion of region H in the middle. Detailed Implementation

[0063] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0064] In the description of this utility model, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0065] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0066] In this utility model, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0067] Reference Figures 1 to 22 An aluminum tube coil extrusion and drawing production line includes a pre-processing device, a winding device 110, an unwinding device 120, a drawing machine 200, a cutting machine 300, a discharge machine 400, and a straightening machine 500.

[0068] The pre-processing unit is used to provide a continuous flow of aluminum tubes;

[0069] The winding device 110 is used to wind up aluminum tubes;

[0070] Unwinding device 120 is used to unwind aluminum tubes;

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

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

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

[0074] The straightener 500 is connected to the rear end of the discharge machine 400 and is used to straighten aluminum tubes.

[0075] 1) In this utility model, the pre-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, thereby producing continuous aluminum tubes. The above processes can all be carried out using existing processes, and will not be described in detail here. Furthermore, the continuous aluminum tubes provided by the pre-processing device are first cooled by water cooling in a water tank.

[0076] Reference Figures 1-3In some embodiments, an aluminum tube extrusion and drawing production line further includes a dryer 600 connected between the pre-processing 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 frame 610, a blower 620, an air duct 630, and an air guide seat 640. The blower 620 is mounted on the third frame 610 and is used to blow hot air. The air duct 630 is mounted on the third frame 610 and one end is connected to the blower 620. The air guide seat 640 is mounted on the third frame 610 and is connected to the other end of the air duct 630. An air outlet 650 is provided on the air guide seat 640, and the aluminum tube passes through the air guide seat 640. The hot air blown by the blower 620 can enter the air guide seat 640 through the air duct 630 and be dried by the air outlet 650 on the air guide seat 640.

[0077] Specifically, the aluminum tubes produced in the pultrusion process are cooled in a water bath and then inserted into the air guide seat 640. The blower 620 is then activated to blow hot air. The hot air enters the air guide seat 640 through the air guide pipe 630 and is finally blown onto the aluminum tube through the air outlet 650, rapidly drying the moisture on the surface of the aluminum tube. In some embodiments, at least two air guide seats 640 are provided and arranged along the length of the aluminum tube, allowing the aluminum tube to pass through at least two air guide seats 640 for hot air drying, further improving the drying efficiency and effect. This rapid hot air drying of the aluminum tube not only improves drying efficiency but also enhances the drying effect, which is beneficial for improving the processing quality of the aluminum tube and has excellent practicality.

[0078] In a preferred embodiment of the air guide 640, the air guide 640 includes a first horizontal air plate 641, a vertical air plate 642, and a second horizontal air plate 643 connected in sequence to form a U-shaped structure. An aluminum tube is inserted 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 that communicates with the other end of the air guide tube 630. An air outlet 650 is disposed on the first horizontal air plate 641, the vertical air plate 642, and / or the second horizontal air plate 643. On the air plate 643; during assembly, the aluminum tube is inserted into the air guide seat 640 from the open end of the air guide seat 640, and the air outlet 650 is long and narrow, which can increase the wind speed when the hot air is blown 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 is located at the front end and / or the rear end of the aluminum tube in the length direction, so as to realize the multiple hot air drying of the aluminum tube.

[0079] In some embodiments, a flexible pad 770 is provided inside the air guide seat 640, and the aluminum tube is placed on the flexible pad 770; this arrangement can avoid frictional 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, a concentrator 680 is provided on the third frame 610 and covers the air guide seat 640; this arrangement enables the blown hot air to be gathered again in the concentrator 680 as much as possible, so as to achieve secondary hot air drying of the aluminum tube; in some embodiments, the concentrator 680 includes a base 681 and a flip cover 682 rotatably connected to the base 681.

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

[0082] 3) Reference Figure 1 and Figures 5-6 In some embodiments, an aluminum tube extrusion and drawing production line further includes a speed adjuster 700 connected between the unwinding device 120 and the drawing machine 200, used to detect the conveying speed of the aluminum tube; the aluminum tube unwound from the unwinding device 120 first passes through the speed adjuster 700, and the speed adjuster 700 is linked with the drawing machine 200.

[0083] In a preferred embodiment of the speed regulator 700, the speed regulator 700 includes an adjustment base 710, a first detection component 720, and a second detection component 730. The adjustment base 710 is provided with a detection channel 750, and an aluminum tube passes through the detection channel 750. The first detection component 720 is disposed on one side of the detection channel 750, and the second detection component 730 is disposed on the other side of the detection channel 750. The first detection component 720 can emit an acceleration signal when it detects that the aluminum tube is deflected to that side, and the second detection component 730 can emit a deceleration signal when it detects that the aluminum tube is deflected to that side.

[0084] Specifically, the aluminum tube fed by the unwinding device 120 passes through the detection channel 750. When the unwinding speed of the aluminum tube unwinding device increases, the aluminum tube will shift to the side where the first detection component 720 is located, and will be detected by the first detection component 720, which will send an acceleration message to the pulling device. The pulling device will then increase the pulling speed to prevent the aluminum tube from bending. When the unwinding speed of the aluminum tube unwinding device decreases, the aluminum tube will shift to the side where the second detection component 730 is located, and will be detected by the second detection component 730, which will send a deceleration message to the pulling device. The pulling device will then reduce the pulling speed to prevent the aluminum tube from being pulled.

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

[0086] Specifically, there are four of each of the first photoelectric switch 721 and the second photoelectric switch 731. Under normal circumstances, the aluminum tube is transported in the middle of the detection channel 750. The more the aluminum tube deviates, the closer it is to the outer photoelectric switch. That is, the closer the outer photoelectric switch is to the aluminum tube, the more the aluminum tube has deviated.

[0087] In some embodiments, the adjusting seat 710 is provided with a first limiting wheel 761 and a second limiting wheel 762 arranged at intervals along the height direction. The first limiting wheel 761 and the second limiting wheel 762 are connected to the adjusting seat 710 through a first adjusting structure 770. As a preferred embodiment of the first adjusting structure 770, the first adjusting 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 adjusting seat 710 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; the first limiting wheel 761, the second limiting wheel 762 and the adjusting seat 710 form a detection channel 750.

[0088] Specifically, the positions of the first limiting wheel 761 and the second limiting wheel 762 on the adjusting 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 limiting wheel 762 located at the lower end without affecting the forward conveying of the aluminum tube.

[0089] In some embodiments, the adjusting seat 710 is provided with a third limiting wheel 763 and a fourth limiting wheel 764 arranged at intervals along the width direction. The third limiting wheel 763 and the fourth limiting wheel 764 are connected to the adjusting seat 710 through a second adjusting structure 780. As a preferred embodiment of the second adjusting structure 780, the second adjusting 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 bolt assembly 784... The strip grooves 782 are arranged on both sides of the adjusting 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; the third limiting wheel 763, the fourth limiting wheel 764 and the adjusting seat 710 form a detection channel 750.

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

[0091] 4) Reference Figure 1 and Figures 7-8 In some embodiments, an aluminum tube extrusion and drawing production line further includes a 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 In a preferred embodiment of the shrinking machine 800, the shrinking machine 800 includes a third driving device 810, a rotating base 820, a directional disc 830, a guide disc 840, and a plurality of die-cutting molds 850; the third driving device 810 is connected to the rotating base 820 and is used to drive the rotating base 820 to rotate; the directional disc 830 is installed on the periphery of the rotating base 820 and has a plurality of directional grooves 831 arranged circumferentially thereon, the directional grooves 831 being arranged radially along the center of the directional disc 830; the die-cutting molds 850 are disposed in the directional grooves 831 and abut against the rotating base 820; the guide disc 840 is installed on the rotating base 820 and is movably connected to the die-cutting molds 850; the aluminum tube passes through the die-cutting molds 850, and the third driving device 810 drives the die-cutting molds 850 to move inward when driving the rotating base 820 to squeeze and deform the aluminum tube; or drives the die-cutting molds 850 to move outward when driving the rotating base 820 to move the aluminum tube between the die-cutting molds 850.

[0093] Specifically, after pultrusion, the aluminum tube is fed into the shrinking machine 800. After being shrunk by the shrinking machine 800, it is clamped and pulled by the tube drawing mechanism and fed into the drawing machine 200. Specifically, after pultrusion, the aluminum tube is inserted into the shrinking space formed by multiple dies 850. When the third drive device 810 drives the rotating seat 820 to rotate in the forward direction, it will drive the die 850 to move towards the center of the directional plate 830 in the directional groove 831 on the directional plate 830 (the directional plate 830 and the pressure plate 881 remain stationary). The aluminum tube is then squeezed, causing it to deform and shrink under pressure. In the next 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 die 850 to move away from the center of the directional plate 830 in the directional groove 831 on the directional plate 830 (the directional plate 830 and the pressure plate 881 remain stationary). This causes the die 850 to move away from the aluminum tube, and the tube pulling mechanism can grab the part squeezed by the die 850 to pull the aluminum tube to the drawing machine 200.

[0094] ② In some embodiments, the inner wall of the rotating seat 820 is provided with a plurality of first arc-shaped directional grooves 861, and the guide plate 840 is provided with a plurality of second arc-shaped directional grooves 862. One end of the die 850 extends into the first arc-shaped directional groove 861 and is provided with a guide block 851 extending into the second arc-shaped directional groove 862. When the rotating seat 820 rotates in the forward direction, it will push one end of the die 850 through the first arc-shaped directional groove 861, so that the rotational motion of the rotating seat 820 and the guide plate 840 is converted into the linear motion of the die 850 in the directional groove 831. When the seat 820 rotates in the reverse direction, it will drive the guide block 851 and the die 850 to move through the second arc-shaped directional groove 862 on the guide plate 840. This will convert the rotational motion of the seat 820 and the guide plate 840 into the linear motion of the die 850 in the directional groove 831, and finally realize the reciprocating motion of the die 850 in the directional groove 831. The above structure can realize the automatic shrinking of the aluminum tube, which makes it easier for the tube drawing mechanism to clamp and pull the aluminum tube. This not only saves labor costs, but also makes the connection of the aluminum tubes in the drawing machine 200 smoother, which is conducive to improving the production efficiency of aluminum tubes.

[0095] ③ In 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 configuration, the first motor 811 drives the reducer 812 to move, and after being reduced by the reducer 812, it drives the driving gear 813 to rotate. The driving gear 813 drives the rotating seat 820 to rotate through the driven gear 814. By changing the rotation direction of the first motor 811, the rotating seat 820 can be driven to move in the forward or reverse direction. In some embodiments, the driven gear 814 and the rotating seat 820 are integrally formed.

[0096] ④ In some embodiments, the guide disk 840 is connected to the rotating seat 820 through the positioning structure 870 so that the guide disk 840 and the rotating seat 820 rotate synchronously; as a preferred embodiment of the positioning structure 870, the positioning structure 870 is set 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. It 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 aluminum tube shrinking machine further includes a protective cover 890 covering the third drive device 810, the rotating seat 820, the directional plate 830, the guide plate 840, and a plurality of die 850.

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

[0100] In this invention, the pultruded aluminum tube is fed into a die holder 220. Specifically, the die holder 220 includes an inner die and an outer die. The aluminum tube passes through the inner die, and then the inner die and the aluminum tube are passed together through the outer die. It is then pulled between the first belt pulling device 240 and the second belt pulling device 250. The distance between the first belt pulling device 240 and the second belt pulling device 250 is adjusted by the adjusting device 260, ensuring that the first belt pulling device 240 and the second belt pulling device 250 can press against the aluminum tube. Then, the first driving device 230 is activated to drive the first belt pulling device 240 and the second belt pulling device 250 to rotate. Figure 9 Taking the first driving device 230 as an example, the first driving device 230 drives the first belt pulling device 240 to rotate counterclockwise and the second belt pulling device 250 to rotate clockwise, thereby pulling the aluminum tube backward; after being squeezed by the die holder 220, the diameter and wall thickness of the aluminum tube are changed, thus completing the pulling process of the aluminum tube.

[0101] ①Reference Figures 9-10 In some embodiments, the first drive 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 simultaneously.

[0102] ②Reference Figures 9-11 as well as Figure 13 In some embodiments, a tracked drawing machine further includes a third straightening device 271 docked to the front end of the die holder 220 for straightening the front end of the aluminum tube; and / or, it further includes a fourth straightening device 272 docked between the die holder 220 and the first belt drawing device 240 and the second belt drawing device 250 for straightening the rear end of the aluminum tube; specifically, the third straightening device 271 includes two sets of first straightening wheel assemblies 2711, one set of second straightening wheel assemblies 2712, one set of third straightening wheel assemblies 2713 and two sets of fourth straightening wheel assemblies 2714 arranged sequentially, each straightening wheel assembly 2714... The wheel assembly includes a wheel body, a lead screw, and a handwheel. Rotating the handwheel drives the lead screw to rotate, which is then converted into linear motion of the wheel body. The second straightening wheel assembly 2712 and the third straightening wheel assembly 2713 are located on both sides of the aluminum tube and are staggered along the length of the aluminum tube, which can straighten the front end of the aluminum tube. The fourth straightening device 272 includes two sets of fifth straightening wheel assemblies. Each fifth straightening wheel assembly includes a wheel body 2721, a lead screw, and an adjustment knob 2722. Rotating the adjustment knob 2722 drives the lead screw to rotate, which is then converted into linear motion of the wheel body 2721, thus straightening the rear end of the aluminum tube.

[0103] ③Reference Figures 9-10 as well as Figure 12 In some embodiments, the mold base 220 is connected to the first frame 210 via a fine-tuning device 280 for adjusting the position of the mold base 220 in the horizontal and / or vertical directions. Specifically, the fine-tuning device 280 includes an adjusting seat 281, two sets of fifth slide rail mechanisms 282, and two sets of sixth slide rail mechanisms 283. The mold base 220 is mounted on the adjusting seat 281 via the two sets of fifth slide rail mechanisms 282, and the adjusting seat 281 is mounted on the first frame 210 via the two sets of sixth slide rail mechanisms 283. The fifth slide rail mechanisms 282 are arranged vertically, and the sixth slide rail mechanisms 283 are arranged horizontally. This enables fine-tuning of the aluminum tube's position, allowing the aluminum tube to better align with the first belt pulling device 240 and the second belt pulling device 250.

[0104] ④Reference Figure 9 and Figure 13 In some embodiments, an aluminum tube extrusion and drawing production line further includes a cooling device 270 connected between the die holder 220 and the first belt drawing device 240 and the second belt drawing 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 provided 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 form a cooling channel. The aluminum tube passes through the cooling channel. The ventilation holes are connected to the cooling channel and connected to an external air source. The external air source introduces air into the cooling channel through the ventilation holes, thereby achieving air cooling of the aluminum tube. This can prevent the aluminum tube from being too hot after being drawn by the mold seat 220, which could damage the first belt pulling device 240 and the second belt pulling device 250. Of course, the cooling device 270 can also adopt water cooling or other cooling methods.

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

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

[0108] In a preferred embodiment of the first adjustment assembly 261, the first adjustment assembly 261 includes a second movable frame 2611, a first lead screw 2612, a second lead screw 2613, a first slide rail mechanism 2614, a second slide rail mechanism 2615, a first handwheel 2616, a second handwheel 2617, and a plurality of first pressure rollers 2618; the first lead screw 2612 and the second lead screw 2613 are respectively threaded to both sides of the second movable frame 2611; the first slide rail mechanism 2614 and the second slide rail mechanism 2615 are respectively The first handwheel 2616 is connected to the first lead screw 2612 on both sides of the second movable frame 2611 and the second handwheel 2617 is connected to the second lead screw 2613. The first pressure roller 2618 is mounted 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 roller 2618 to move closer to or away from the second belt pulling device 250 when rotating the first handwheel 2616 and / or the second handwheel 2617.

[0109] In 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 rollers 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 mounted on the first frame 210 and are respectively connected to the two sides of the third movable frame 2621; the second pressure rollers 2626 are mounted on the third movable frame 2621 and are spaced apart along the length direction of the second belt pulling device 250; the third movable frame 2621 can drive the second pressure rollers 2626 to move closer to or away from the first belt pulling device 240 when the first cylinder 2624 and / or the second cylinder 2625 are activated.

[0110] Specifically, the first adjustment component 261 and the second adjustment component 262 are preferably configured as three sets, which can improve the adjustable range of the aluminum tube during the drawing process, that is, three-stage adjustable. The second adjustment component 262 is used to adjust the third movable frame 2621 through a cylinder, mainly for tensioning the second belt 253. The first adjustment component 261 is used to fine adjust 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 this utility model can be used in combination with multiple machines to continuously improve the accuracy by gradually reducing the tube diameter and tube thickness. Preferably, two drawing machines are used in combination.

[0111] ⑦Reference Figures 1-2 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 enables continuous pulling of aluminum tubes, which not only improves the pulling efficiency of aluminum tubes, but also improves the pulling accuracy of aluminum tubes, thus meeting the usage requirements.

[0112] 6) Reference Figure 1 In some embodiments, two drawing machines 200 are provided and spaced apart 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 precision of the aluminum tube. For example, the size of the pultruded aluminum tube is Φ16mm*1.0mm. After the first drawing machine 200, the size of the aluminum tube is Φ14mm*0.7mm. After the second drawing machine 200, the size of the aluminum tube is Φ12mm*0.5mm.

[0113] 7) Reference Figure 1 and Figures 17-18 In some embodiments, the cutting machine 300 includes a second frame 310, a first movable frame 320, a second drive device 330, a metering device 340, and a cutting device 350. The second frame 310 is provided with a feeding clamp 311 and a discharging clamp 312. The first movable frame 320 is mounted on the second frame 310, and the aluminum tube passes through the feeding clamp 311, the first movable frame 320, and the discharging clamp 312. The second drive device 330 is mounted 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 feeding clamp 311 and the discharging clamp 312. The metering device 340 is mounted on the second frame 310 and is used to detect the length of the aluminum tube being conveyed. The cutting device 350 is disposed on the first movable frame 320 and is used to cut the aluminum tube.

[0114] ① Specifically, the aluminum tube produced in the drawing process is fed into the first movable frame 320 via the feeding clamp 311 and then passed through the discharge clamp 312. The aluminum tube is driven forward by a pressing mechanism on the discharge clamp 312 or by an external pulling mechanism. When cutting the aluminum tube, the speed of the aluminum tube movement is first obtained, and then the speed of the second drive device 330 is set for adaptation. The metering device 340 detects the length of the aluminum tube in real time. At the same time, the first movable frame 320 is driven to move along the direction of the aluminum tube movement to the corresponding position via the second drive device 330. Then the cutting device 350 is started to cut the aluminum tube. After cutting, it returns to the starting position. It should be noted that the aluminum tube is always in a forward movement state, that is, continuous cutting is achieved. The above structure not only enables the cutting of aluminum tubes without stopping the machine, thereby improving production efficiency, but also reduces the round-trip distance of the movable frame, which is conducive to energy conservation and emission reduction and has very good practicality.

[0115] ② In one embodiment, the feed clamp 311 includes a first support 3111, a first pressure roller 3112, and a second pressure roller 3113. The first support 3111 is mounted on the second frame 310. The first pressure roller 3112 and the second pressure roller 3113 are mounted on the first support 3111 and arranged at intervals in the vertical direction. The aluminum tube passes through the first pressure roller 3112 and the second pressure roller 3113. Furthermore, the metering device 340 is configured as an encoder and coaxially connected to the second pressure roller 3113, which can obtain the rotational speed of the second pressure roller 3113 and then calculate the distance the aluminum tube moves forward.

[0116] ③ In one embodiment, the second pressure roller 3113 is located below the first pressure roller 3112 and is provided with a first annular guide groove 3114; the aluminum tube is limited by the first annular guide groove 3114 to prevent the aluminum tube from shifting to one side during movement.

[0117] ④ In one embodiment, the discharge clamp 312 includes a second support 3121, a third pressure roller 3122 and a fourth pressure roller 3123. The second support 3121 is disposed on the second frame 310. The third pressure roller 3122 and the fourth pressure roller 3123 are mounted on the second support 3121 and are arranged at intervals in the vertical direction. The aluminum tube passes through the third pressure roller 3122 and the fourth pressure roller 3123.

[0118] ⑤ In one embodiment, the fourth pressure roller 3123 is located below the third pressure roller 3122 and is provided with a second annular guide groove 3124; the aluminum tube is limited by the second annular guide groove 3124 to prevent the aluminum tube from shifting to one side during movement.

[0119] ⑥ In one embodiment, the second drive device 330 includes a second motor 331, a first synchronous gear 332, a second synchronous gear 333, a synchronous belt 334, and a cable 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 cable 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 the guide rail 370.

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

[0123] 8) Reference Figure 1 and Figures 19-22 In some embodiments, the straightening machine 500 includes a first straightening device 510 and a second straightening device 520; the discharge machine 400 includes a flipping discharge device 410, a first return conveying device 420, a second return conveying device 430, a first discharge conveying device 440, and a second discharge conveying device 450; the flipping discharge device 410 is connected to the cutter 300 that conveys aluminum tubes along a first direction M; the first return conveying device 420 and the second return conveying device 430 are arranged on the left and right sides of the flipping discharge device 410, respectively, for conveying aluminum tubes along a second direction N, which is opposite to the first direction M; the first discharge conveying device 440 is connected between the end of the first return conveying device 420 and the first straightening device 510, for conveying aluminum tubes along the first direction M to the first straightening device 510; the second discharge conveying device 450 is connected between the end of the second return conveying device 430 and the second straightening device 520, for conveying aluminum tubes along the first direction M to the second straightening device 520.

[0124] ① The discharge machine 400 provided by this utility model 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 pultruded aluminum tube into a fixed length and then convey it along the first direction M. The flipping discharge device 410 is connected to the discharge end of the cutting machine 300 and can pick up the cut aluminum tube and alternately convey the aluminum tube to the first return conveying device 420 and the second return conveying device 430 located to the left of the flipping discharge device 410. The first return conveying device 420 and the second return conveying device 430 can convey the picked-up aluminum tube along the second direction N. Furthermore, the first discharge conveying device 440 is connected to the first return conveying device 420. The discharge end of the first return conveyor 430 is located outside the first return conveyor 420. It can receive the aluminum tubes transferred by the first return conveyor 420 and transport them along the first direction M to the first straightening device 510 for straightening. The discharge end of the second return conveyor 430 is connected to the discharge end of the second return conveyor 430 and is located outside the second return conveyor 430. It can receive the aluminum tubes transferred by the second return conveyor 430 and transport them along the first direction M to the second straightening device 520 for straightening. By setting up a return conveyor to return the aluminum tubes, it can not only match the efficiency between the pultrusion process and the straightening process, but also greatly reduce the space occupation, which has very good practicality.

[0125] ② As a preferred embodiment of the tilting discharge device 410, the tilting discharge device 410 includes a second drive assembly 411, a push rod 412, and a tilting bucket 413; one end of the push rod 412 is connected to the output end of the second drive assembly 411, and the other end is connected to the tilting bucket 413; the open end of the tilting bucket 413 faces upward, and the cutter 300 can transport aluminum tubes into the tilting bucket 413; the second drive assembly 411 can drive the tilting bucket 413 to tilt to the left or right through the push rod 412, so that the aluminum tubes are alternately transported to the first return conveying device 420 and the second return conveying device 430; it should be noted that the second drive assembly 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 along the second direction N. The supporting rollers 421 are used to support aluminum tubes. In some embodiments, the supporting rollers 421 are provided with annular limiting grooves 422 for placing aluminum tubes.

[0127] ④ In some embodiments, an aluminum tube coil extrusion and drawing production line further includes a first separating feeding device 460 and a second separating feeding device 470. The first separating feeding device 460 is connected between the first return material conveying device 420 and the first discharge material conveying device 440, and the second separating feeding device 470 is connected between the second return material conveying device 430 and the second discharge material conveying device 450.

[0128] In a preferred embodiment of the first separating and unloading device 460, the first separating and unloading device 460 includes a first driving assembly 461, a first transmission assembly 462, a first rotary 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 unloading positions 465; the first return conveying device 420 can transport aluminum tubes to the first unloading positions 465 and transfer them to the first discharge conveying device 440 via the first rotary belt 463.

[0129] Specifically, the first return conveyor 420 provides aluminum tubes one by one and enters the nearest first unloading position 465. The first unloading position 465 moves towards the first unloading conveyor 440 by the drive of the first drive assembly 461, so that the next first unloading position 465 can receive the next aluminum tube from the first return conveyor 420. This cycle continues until the first unloading position 465 moves close enough to transfer the aluminum tube on it to the first unloading conveyor 440. It should be noted that the first drive assembly 461 is preferably a motor, and the first transmission assembly 462 is preferably a sprocket structure.

[0130] In a preferred embodiment of the second separating and unloading device 470, the second separating and unloading device 470 includes a fourth drive assembly 471, a second transmission assembly 472, a second rotary belt 473, and a plurality of second partitions 474; the fourth drive assembly 471 is connected to one end of the second transmission assembly 472; the second rotary belt 473 is rotatably connected between the second return conveyor 430 and the second discharge conveyor 450 and is connected to the other end of the second transmission assembly 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 conveyor 430 can transport aluminum tubes to the second unloading positions 475 and transfer them to the second discharge conveyor 450 via the second rotary belt 473; it should be noted that the working principle of the second separating and unloading device 470 is the same as that of the first separating and unloading device 460, and will not be described in detail here.

[0131] 9) The advantages of this utility model are: the above structure can reduce the number of drawing operations of the drawing machine, reduce the waste of aluminum tubes, and improve the drawing accuracy. It can realize automated production line production, reduce production costs and improve production efficiency, and meet the needs of use.

[0132] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications and substitutions are included within the scope defined by the claims of this application.

Claims

1. An aluminum tube coil extrusion and drawing production line, characterized in that: It includes a pre-processing unit, a winding unit (110), an unwinding unit (120), a drawing machine (200), a cutting machine (300), a discharge machine (400), and a straightening machine (500). The pre-processing unit is used to provide a continuous aluminum tube; The winding device (110) is used to wind up the aluminum tube; The unwinding device (120) is used to unwind aluminum tubes; The drawing machine (200) is connected to the rear end of the unwinding device (120) and is used to draw aluminum tubes; 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; The discharge machine (400) is connected to the rear end of the cutting machine (300) and is used to receive and transfer aluminum tubes; The straightening machine (500) is connected to the rear end of the discharge machine (400) and is used to straighten the aluminum tube.

2. The aluminum tube coil extrusion and drawing production line according to claim 1, characterized in that: The drawing machine (200) includes a first frame (210) and a die holder (220), a first drive device (230), a first belt drawing device (240), a second belt drawing device (250), and an adjustment device (260) disposed on the first frame (210). The mold base (220) is located at the front end; The first drive 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); An aluminum tube is inserted between the first belt pulling device (240) and the second belt pulling device (250) to pull the aluminum tube through the mold base (220).

3. The aluminum tube coil extrusion and drawing production line according to claim 2, characterized in that: It also includes a cooling device (270) located between the mold base (220) and the first belt pulling device (240) and the second belt pulling device (250) for cooling the pulled aluminum tube.

4. The aluminum tube coil extrusion and drawing production line according to claim 1, characterized in that: The cutting machine (300) includes a second frame (310), a first movable frame (320), a second drive device (330), a metering device (340), and a cutting device (350). The second frame (310) is provided with a feed clamp (311) and a discharge clamp (312); The first movable frame (320) is mounted on the second frame (310), and the aluminum tube passes through the feed clamp (311), the first movable frame (320) and the discharge clamp (312); The second drive device (330) is mounted 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 being transported. The cutting device (350) is mounted on the first movable frame (320) and is used to cut aluminum tubes.

5. The aluminum tube coil extrusion and drawing production line according to claim 1, characterized in that: The straightening machine (500) includes a first straightening device (510) and a second straightening device (520); the discharge machine (400) includes a flipping discharge device (410), a first return material conveying device (420), a second return material conveying device (430), a first discharge conveying device (440), and a second discharge conveying device (450). The flipping discharge 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 discharge device (410) respectively, and are used to convey the aluminum tube along the second direction N, which is opposite to the first direction M; The first discharge conveying device (440) is connected between the end of the first return conveying device (420) and the first straightening device (510) to convey the aluminum tube along the first direction M to the first straightening device (510). The second discharge conveying device (450) is connected between the end of the second return conveying device (430) and the second straightening device (520) to convey the aluminum tube along the first direction M to the second straightening device (520).

6. The aluminum tube coil extrusion and drawing production line according to claim 5, characterized in that: It also includes a first separating feeding device (460) and a second separating feeding device (470), the first separating feeding device (460) being connected between the first return material conveying device (420) and the first discharge material conveying device (440), and the second separating feeding device (470) being connected between the second return material conveying device (430) and the second discharge material conveying device (450).

7. The aluminum tube coil extrusion and drawing production line according to claim 6, characterized in that: The first separating feeding device (460) includes a first driving assembly (461), a first transmission assembly (462), a first rotary belt (463), and a plurality of first partitions (464). The first drive 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 conveyor (420) and the first discharge conveyor (440) and is connected to the other end of the first transmission assembly (462); The first partition (464) is 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 conveyor (420) can convey aluminum tubes to the first unloading position (465) and transfer them to the first discharge conveyor (440) via the first rotary belt (463).

8. The aluminum tube coil extrusion and drawing production line according to claim 1, characterized in that: It also includes a dryer (600) connected between the pre-processing device and the winding device (110) for hot air drying of the aluminum tube.

9. The aluminum tube coil extrusion and drawing production line according to claim 1, characterized in that: It also includes a speed adjuster (700) connected between the unwinding device (120) and the drawing machine (200) for detecting the conveying speed of the aluminum tube.

10. An aluminum tube coil extrusion and drawing production line according to claim 1, characterized in that: It also includes a 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.

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