Continuous long and thin seamless aluminum pipe extrusion device and extrusion production method

Abstract

The invention belongs to the technical field of pipe machining, and particularly relates to a continuous long and thin seamless aluminum pipe extrusion device and an extrusion production method. The aluminum pipe cold-drawing machine comprises a machine base, and a die drawing base is fixedly installed on the machine base and used for cold-drawing forming of an aluminum pipe; the trough is fixedly mounted on one side of the draft base; the feeding mechanism is used for feeding materials into the trough; the hopper is arranged above the feeding mechanism; an aluminum pipe in the hopper is conveyed into the trough through the feeding mechanism; the feeding mechanism comprises a pair of charging trays which rotate coaxially, a plurality of grooves are evenly formed in the charging trays in the circumferential direction of the charging trays, and each groove corresponds to a single aluminum pipe. The linkage mechanism is used for automatically driving the material disc to rotate and discharging the aluminum pipe into the material groove; through the arrangement of the feeding mechanism, after an aluminum pipe in the material groove completely passes through the die drawing base, the feeding mechanism can automatically convey the aluminum pipe into the material groove through cooperation of the material disc and the linkage mechanism, and feeding is conducted on the interior of the material groove in time.

Description

Technical Field

[0001] The invention relates to the technical field of tube processing equipment, and in particular to a continuous long and thin seamless aluminum tube extrusion device and an extrusion production method. Background Art

[0002] In the existing aluminum tube processing, a relatively thick aluminum tube blank is subjected to multiple diameter reduction drawing to realize the processing of aluminum tube products with different tube diameter requirements. Cold drawing processing refers to the use of a drafting die to directly cold-draw a large-diameter tube into a smaller-diameter tube. A cold drawing machine is a mechanical equipment used to reduce the diameter and wall or reduce the wall and expand the diameter of the tube. When the existing cold drawing machine cold-draws the blank tube, the blank tube is first headed to form an end that can be clamped by the cold drawing machine. After annealing, the end of the blank tube is passed through the die by pushing the tube, and then the end is clamped by the clamping mechanism of the drawing machine, and the blank tube is pulled out through the die, and finally the head is removed and the useless end is cut off.

[0003] In the existing drawing equipment, after a tube is drawn, the head of the next tube is usually inserted into the drafting seat manually. There is no automatic mechanism for feeding the tubes. The manual feeding of the tubes has a low degree of automation and sometimes cannot be fed in time, which affects the processing efficiency of the tubes. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a continuous long and thin seamless aluminum tube extrusion device and an extrusion production method. By providing a feeding mechanism, the tube can be automatically fed in a timely manner, thereby overcoming the shortcomings of the prior art that the tube cannot be automatically fed, and aims to solve the problems in the background technology.

[0005] In order to achieve the above technical objectives, the specific technical scheme of the present invention is as follows: a continuous long and thin seamless aluminum tube extrusion device proposed in the present invention includes: a machine base, a draft seat is fixedly installed on the machine base, and is used for cold drawing the aluminum tube; a material trough is fixedly installed on one side of the draft seat; a feeding mechanism is used to feed the material into the material trough; a hopper is arranged above the feeding mechanism; the aluminum tube in the hopper is transported to the material trough through the feeding mechanism; the feeding mechanism includes: a pair of coaxially rotating material trays, and the material trays are evenly provided with a plurality of grooves along the circumference thereof, and each groove corresponds to a single aluminum tube; a linkage mechanism is used to automatically drive the material trays to rotate and feed the aluminum tube into the material trough.

[0006] As a preferred technical solution of the present invention, the linkage mechanism includes: a fixed frame; a lifting frame, the lifting frame is connected to a roller, and the roller can roll along the upper surface of the aluminum tube; and the lifting frame is fixedly connected to a rack for rotating with a material tray, and a rotating part coaxially connected to the material tray cooperates with the rack.

[0007] As a preferred technical solution of the present invention, the rotating part includes: a ring gear, meshing with the rack; a ratchet, rotatably connected inside the ring gear, and the ratchet is coaxially fixedly connected to the material tray; a plurality of ratchet pawls cooperating with the ratchet are evenly connected to the inner side of the ring gear, and an elastic part is fixedly connected between the ratchet pawls and the inner wall of the ring gear.

[0008] As a preferred technical solution of the present invention, a telescopic rod is fixedly connected between the lifting frame and the fixed frame, and a guide rod is fixedly connected to the lifting frame. The guide rod is movably connected to the fixed frame, and a cylindrical spring is connected to the surface of the guide rod. When the roller rolls along the upper surface of the aluminum tube, the cylindrical spring is in a compressed state.

[0009] As a preferred technical solution of the present invention, the linkage mechanism also includes: a fixed frame, in which a gear is rotatably connected, and a first tooth plate and a second tooth plate are respectively meshed on both sides of the gear, and the first tooth plate and the second tooth plate are both slidably connected to the fixed frame; a lifting plate, which is arranged in the material trough, and the aluminum tube falls into the material trough and drives the lifting plate to descend under its own gravity; the lifting plate and the first tooth plate are fixedly connected by a first bracket; the second tooth plate is fixedly connected to the lifting frame by a second bracket.

[0010] As a preferred technical solution of the present invention, a guide hole is provided on the surface of the draft seat for guiding the aluminum tube; and a pair of mounting seats are symmetrically connected to the draft seat, the mounting seats are slidably matched with the draft seat, and an adjusting screw is connected between the mounting seats and the draft seat, and a forming seat is fixedly installed on the mounting seat, and the forming seat is provided with an extrusion hole corresponding to the guide hole.

[0011] As a preferred technical solution of the present invention, a pushing mechanism is provided at one end of the material trough, and a pushing seat is connected to the pushing mechanism for pushing the aluminum tube in the material trough into the draft seat.

[0012] A method for extruding a continuous long and thin seamless aluminum tube comprises the following steps: Step 1: The drawing trolley drives the aluminum tube to move forward in the drafting seat, and cold drawing is performed during the movement, while the roller rolls on the upper surface of the aluminum tube; Step 2: When the end of the aluminum tube enters the draft seat, the roller separates from the surface of the aluminum tube, and the lifting frame descends due to the elastic force of the cylindrical spring, driving the rack to descend, the rack drives the rotating part to rotate, and drives the material tray to rotate, turning the single aluminum tube into the material trough, and at the same time, the aluminum tubes at the bottom of the hopper fall onto the material tray; Step 3: After the aluminum tube falls into the trough, the lifting plate descends under the gravity of the aluminum tube, thereby driving the lifting frame to rise, driving the roller to rise to the original position, and the pushing mechanism pushes the aluminum tube to move, so that the head of the aluminum tube is inserted into the draft seat, and the aluminum tube is driven to move in the draft seat by the pulling trolley.

[0013] The beneficial effects of the present invention are: The present invention is provided with a feeding mechanism. When the aluminum tube in the material trough completely passes through the draft plate, the feeding mechanism can automatically transport the aluminum tube into the material trough through the cooperation of the material tray and the linkage mechanism, and feed the material into the material trough in time, thereby achieving the purpose of automatic feeding.

[0014] The present invention adopts the cooperation of the material tray and the linkage mechanism and utilizes the gravity of the aluminum tube. Only when the aluminum tube in the material trough is completely drawn out, the aluminum tube will be automatically loaded. The loading is timely and there will be no misloading or overloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The present invention provides a schematic structural diagram of a continuous long and thin seamless aluminum tube extrusion device.

[0016] Figure 2 This is a schematic structural diagram of the draft seat proposed in the present invention.

[0017] Figure 3 This is a schematic diagram from another angle of the draft seat proposed by the present invention.

[0018] Figure 4 It is a structural schematic diagram of the feeding mechanism proposed in the present invention.

[0019] Figure 5 This is a schematic structural diagram of the rotating part proposed in the present invention.

[0020] Figure 6 It is a structural schematic diagram of the linkage mechanism proposed in the present invention.

[0021] Figure 7 This is a schematic diagram from another angle of the linkage mechanism proposed by the present invention.

[0022] In the figure: 1. machine base; 2. drafting seat; 21. guide hole; 22. mounting seat; 23. forming seat; 24. extrusion hole; 25. adjusting screw; 3. material trough; 4. hopper; 5. feeding mechanism; 51. material tray; 52. groove; 53. rotating part; 531. gear ring; 532. ratchet; 533. pawl; 534. elastic part; 54. linkage mechanism; 541. lifting frame; 542. fixed frame; 543. rack; 544. guide rod; 545. cylindrical spring; 546. roller; 547. lifting plate; 548. fixed frame; 549. gear; 5410. first gear plate; 5411. second gear plate; 5412. first bracket; 5413. second bracket; 5414. telescopic rod; 6. pushing mechanism; 61. pushing seat. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] Embodiment: This embodiment discloses a continuous long and thin seamless aluminum tube extrusion device, such as Figure 1-Figure 7 As shown, it includes: a machine base 1, on which a draft seat 2 is fixedly installed, which is used for cold drawing the aluminum tube; a material trough 3, which is fixedly installed on one side of the draft seat 2; a feeding mechanism 5, which is used for feeding the material trough 3; a hopper 4, which is arranged above the feeding mechanism 5, and multiple layers of aluminum tubes are horizontally discharged inside the hopper 4; the aluminum tubes in the hopper 4 are transported to the material trough 3 through the feeding mechanism 5; wherein, one end of the material trough 3 is provided with a pushing mechanism 6, and the pushing mechanism 6 is connected with a pushing seat 61, which is used to push the aluminum tubes in the material trough 3 into the draft seat 2; after the aluminum material falls into the material trough 3, the pushing mechanism 6 pushes the aluminum material to move, so that the head of the aluminum material is inserted into the draft seat 2, and then the aluminum material is clamped and driven to move by the drawing trolley, and the aluminum material is drawn and formed after passing through the draft seat 2, and the tube diameter is reduced.

[0025] like Figure 2-Figure 3 As shown, a guide hole 21 is provided on the surface of the draft seat 2, and the guide hole 21 faces the direction of the material trough 3 and is used to guide the aluminum tube; and a pair of mounting seats 22 are symmetrically connected to the draft seat 2, and the mounting seats 22 are slidably matched with the draft seat 2, and an adjusting screw 25 is connected between the mounting seat 22 and the draft seat 2, and a forming seat 23 is fixedly installed on the mounting seat 22 by bolts. During pulling, the two forming seats 23 contact each other, and the forming seat 23 is provided with an extrusion hole 24 corresponding to the guide hole 21; the two mounting seats 22 are driven to contact or separate by rotating the adjusting screw 25, so that the forming seat 23 is convenient to replace.

[0026] like Figure 4-Figure 5 As shown, the feeding mechanism 5 includes: a pair of coaxially rotating material trays 51, the material tray 51 is evenly provided with a plurality of grooves 52 along its circumference, each groove 52 corresponds to a single aluminum tube, and the number of grooves 52 in this embodiment is four; a linkage mechanism 54, which is used to automatically drive the material tray 51 to rotate. After the aluminum material in the material trough 3 is drawn and formed, the linkage mechanism 54 automatically drives the material tray 51 to rotate to a certain angle. Each time the material tray 51 rotates, one aluminum tube is transported into the material trough 3, and at the same time, the bottom layer of aluminum in the hopper 4 automatically falls into the upward groove 52 of the material tray 51.

[0027] Among them, a rotating member 53 is coaxially connected to the material tray 51, and the rotating member 53 includes: a ring gear 531, which is meshed with the rack 543; a ratchet 532, which is rotatably connected to the inside of the ring gear 531, and the ratchet 532 is coaxially fixedly connected to the material tray 51; a plurality of ratchet pawls 533 cooperating with the ratchet 532 are evenly connected to the inner side of the ring gear 531, and an elastic member 534 is fixedly connected between the ratchet pawls 533 and the inner wall of the ring gear 531; when the ring gear 531 rotates forward, it drives the ratchet 532 and the material tray 51 to rotate together; when the ring gear 531 rotates reversely, the ratchet 532 and the material tray 51 remain stationary.

[0028] like Figure 6-Figure 7 As shown, the linkage mechanism 54 includes: a fixed frame 542, which is fixedly connected to the drafting seat 2; a lifting frame 541, which is arranged below the fixed frame 542, and the lifting frame 541 is connected with a roller 546, and the roller 546 can roll along the upper surface of the aluminum tube; and the lifting frame 541 is fixedly connected with a rack 543 for rotating the material tray 51, and the rack 543 cooperates with the rotating member 53; a telescopic rod 5414 is fixedly connected between the lifting frame 541 and the fixed frame 542 to keep the lifting frame 541 stable when lifting, and a guide rod 544 is fixedly connected to the lifting frame 541 to guide The rod 544 is movably connected to the fixed frame 542, and a cylindrical spring 545 is connected to the surface of the guide rod 544. When the roller 546 rolls along the upper surface of the aluminum tube, the cylindrical spring 545 is in a compressed state; when the lifting frame 541 descends, the rack 543 drives the gear ring 531 to rotate forward, and the gear ring 531 drives the ratchet 532 to rotate, thereby driving the material tray 51 to rotate, and the aluminum tube is loaded into the material trough 3; when the lifting frame 541 rises, the rack 543 rises and drives the gear ring 531 to rotate in the opposite direction, the gear ring 531 will not drive the ratchet 532 to rotate, and the material tray 51 remains stationary, thereby avoiding the aluminum tube from returning.

[0029] The linkage mechanism 54 further includes: a fixed frame 548, the fixed frame 548 is fixedly connected to the die-drawing seat 2, a gear 549 is rotatably connected in the fixed frame 548, a first tooth plate 5410 and a second tooth plate 5411 are respectively meshed on both sides of the gear 549, and the first tooth plate 5410 and the second tooth plate 5411 are both slidably connected to the fixed frame 548; a lifting plate 547 is arranged in the material trough 3, and the aluminum tube falls into the material trough 3 and drives the lifting plate 547 to descend under its own gravity; the lifting plate 547 and the first tooth plate 5410 are connected to each other. The first tooth plate 5410 is fixedly connected with the lifting frame 541 through the first bracket 5412; the second tooth plate 5411 is fixedly connected with the lifting frame 541 through the second bracket 5413; after the aluminum tube is loaded into the material trough 3, the aluminum tube is pressed on the lifting plate 547, and under the gravity of the aluminum tube, the lifting plate 547 descends, driving the first tooth plate 5410 to move downward, and the first tooth plate 5410 drives the second tooth plate 5411 to move upward through the gear 549, thereby driving the lifting frame 541 to move upward, so that the height of the roller 546 is higher than the aluminum tube, avoiding obstruction to the movement of the aluminum tube.

[0030] Working principle of feeding mechanism 5: During the drawing process of aluminum tube, when the end of aluminum tube is separated from lifting plate 547, roller 546 is pressed against the upper surface of aluminum tube under the elastic force of cylindrical spring 545. As aluminum tube moves, roller 546 is separated from aluminum tube, lifting frame 541 descends under the elastic force of cylindrical spring 545, and lifting plate 547 rises at the same time. Lifting frame 541 drives rack 543 to descend, rack 543 drives rotating member 53 to rotate, and then drives material tray to rotate 90°. When material tray 51 rotates, aluminum material falls into material trough 3, and the loading is completed. The aluminum tube is automatically loaded, and the aluminum material in the hopper 4 falls into the groove 52 on the material tray 51; when the aluminum tube falls into the material trough 3, the lifting plate 547 descends under the gravity of the aluminum tube, driving the lifting frame 541 to rise, and then driving the roller 546 to rise, so as to avoid obstruction to the movement of the aluminum tube; this embodiment adopts the cooperation of the material tray 51 and the linkage mechanism 54, and utilizes the gravity of the aluminum tube. Only when the aluminum tube in the material trough 3 is completely drawn out, the aluminum tube will be automatically loaded, and the loading is timely without misloading or overloading.

[0031] A method for extruding a continuous long and thin seamless aluminum tube comprises the following steps: Step 1: The drawing trolley drives the aluminum tube to move forward in the drafting seat 2, and cold drawing is performed during the movement, while the roller 546 rolls on the upper surface of the aluminum tube; Step 2: When the end of the aluminum tube enters the drafting seat 2, the roller 546 separates from the surface of the aluminum tube, and the lifting frame 541 is lowered by the elastic force of the cylindrical spring 545, driving the rack 543 to descend, and the rack 543 drives the rotating member 53 to rotate, driving the material tray 51 to rotate, turning the single aluminum tube over and dropping it into the material trough 3, and at the same time, the aluminum tubes at the bottom layer in the hopper 4 fall onto the material tray 51; Step 3: After the aluminum tube falls into the trough 3, the lifting plate 547 descends under the gravity of the aluminum tube, thereby driving the lifting frame 541 to rise, driving the roller 546 to rise to the original position, and the pushing mechanism 6 pushes the aluminum tube to move, so that the head of the aluminum tube is inserted into the draft seat 2, and the aluminum tube is driven to move in the draft seat 2 by the pulling trolley.

[0032] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They 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. Therefore, they cannot be understood as limitations on the present invention.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A continuous long and thin seamless aluminum tube extrusion device, characterized in that: include: A machine base (1), wherein a drafting base (2) is fixedly mounted on the machine base (1) and is used for cold drawing the aluminum tube; A material trough (3) is fixedly mounted on one side of the die-drawing base (2); A feeding mechanism (5) for feeding materials into the trough (3); The hopper (4) is arranged above the feeding mechanism (5); the aluminum tube in the hopper (4) is transported to the trough (3) through the feeding mechanism (5); The feeding mechanism (5) comprises: a pair of coaxially rotating material trays (51), the material trays (51) being evenly provided with a plurality of grooves (52) along their circumferences, each groove (52) corresponding to a single aluminum tube; and a linkage mechanism (54) for automatically driving the material trays (51) to rotate and feeding the aluminum tubes into the material trough (3).

2. The continuous long and thin seamless aluminum tube extrusion device according to claim 1 is characterized in that: The linkage mechanism (54) comprises: a fixed frame (542); a lifting frame (541); a roller (546) is connected to the lifting frame (541); the roller (546) can roll along the upper surface of the aluminum tube; and a rack (543) is fixedly connected to the lifting frame (541) for rotating the material tray (51); a rotating member (53) cooperating with the rack (543) is coaxially connected to the material tray (51).

3. The continuous long and thin seamless aluminum tube extrusion device according to claim 2 is characterized in that: The rotating member (53) comprises: a toothed ring (531) meshing with the rack (543); a ratchet (532) rotatably connected inside the toothed ring (531), and the ratchet (532) is coaxially fixedly connected to the material tray (51); a plurality of ratchet pawls (533) cooperating with the ratchet (532) are evenly connected to the inner side of the toothed ring (531), and an elastic member (534) is fixedly connected between the ratchet pawls (533) and the inner wall of the toothed ring (531).

4. The continuous long and thin seamless aluminum tube extrusion device according to claim 3 is characterized in that: A telescopic rod (5414) is fixedly connected between the lifting frame (541) and the fixed frame (542), and a guide rod (544) is fixedly connected to the lifting frame (541). The guide rod (544) is movably connected to the fixed frame (542), and a cylindrical spring (545) is connected to the surface of the guide rod (544). When the roller (546) rolls along the upper surface of the aluminum tube, the cylindrical spring (545) is in a compressed state.

5. The continuous long and thin seamless aluminum tube extrusion device according to claim 4 is characterized in that: The linkage mechanism (54) further comprises: a fixed frame (548), a gear (549) being rotatably connected inside the fixed frame (548), a first tooth plate (5410) and a second tooth plate (5411) being respectively meshed on both sides of the gear (549), the first tooth plate (5410) and the second tooth plate (5411) being both slidably connected to the fixed frame (548); a lifting plate (547), disposed in the material trough (3), the aluminum tube falling into the material trough (3) driving the lifting plate (547) downward under its own gravity; the lifting plate (547) and the first tooth plate (5410) being fixedly connected via a first bracket (5412); and the second tooth plate (5411) being fixedly connected to the lifting frame (541) via a second bracket (5413).

6. The continuous long and thin seamless aluminum tube extrusion device according to claim 5 is characterized in that: The surface of the draft seat (2) is provided with a guide hole (21) for guiding the aluminum tube; and a pair of mounting seats (22) are symmetrically connected to the draft seat (2), the mounting seats (22) and the draft seat (2) are slidably matched, and an adjusting screw (25) is connected between the mounting seats (22) and the draft seat (2); a forming seat (23) is fixedly mounted on the mounting seat (22), and an extrusion hole (24) corresponding to the guide hole (21) is provided on the forming seat (23).

7. The continuous long and thin seamless aluminum tube extrusion device according to claim 6 is characterized in that: A material pushing mechanism (6) is provided at one end of the material trough (3), and a material pushing seat (61) is connected to the material pushing mechanism (6) for pushing the aluminum tube in the material trough (3) into the die drawing seat (2).

8. A method for producing a continuous long and thin seamless aluminum tube by extrusion, using a continuous long and thin seamless aluminum tube extrusion device as claimed in claim 7, characterized in that: The following steps are involved: Step 1: The drawing carriage drives the aluminum tube to move forward in the drafting seat (2), and cold drawing is performed during the movement, while the roller (546) rolls on the upper surface of the aluminum tube; Step 2: When the end of the aluminum tube enters the die-drawing seat (2), the roller (546) separates from the surface of the aluminum tube, and the lifting frame (541) is lowered by the elastic force of the cylindrical spring (545), driving the rack (543) to descend, and the rack (543) drives the rotating member (53) to rotate, driving the material tray (51) to rotate, turning the single aluminum tube over and dropping it into the material trough (3), and at the same time, the aluminum tubes at the bottom layer in the hopper (4) fall onto the material tray (51); Step 3: After the aluminum tube falls into the material trough (3), the lifting plate (547) descends under the gravity of the aluminum tube, thereby driving the lifting frame (541) to rise, driving the roller (546) to rise to the original position, and the pushing mechanism (6) pushes the aluminum tube to move, so that the head of the aluminum tube is inserted into the draft seat (2), and the aluminum tube is driven to move in the draft seat (2) through the pulling trolley.

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