Rotational-rotation rod discharging mechanism of extrusion aluminum alloy casting rod heating furnace

Abstract

The invention discloses an extrusion aluminum alloy casting rod heating furnace rotary-rotation rod discharging mechanism, and belongs to the field of metal processing.The extrusion aluminum alloy casting rod heating furnace rotary-rotation rod discharging mechanism comprises a blank preheating furnace, a conveying sliding way, a to-be-pressed blank and an extruder, a rotary adjusting assembly is arranged at one end of the blank preheating furnace, and an extrusion pretreatment assembly is arranged at the other end of the blank preheating furnace; a blank to be pressed is located in the conveying sliding way, and the extruding machine is adjacent to the blank preheating furnace. Through cooperative use of the rotation adjusting assembly and the extrusion pretreatment assembly, a to-be-pressed blank is driven by the driving roller to rotate, is conveyed to an outlet of the blank preheating furnace and is positioned, so that the heating uniformity of the to-be-pressed blank is ensured, and the to-be-pressed blank can be returned to the blank preheating furnace for heat preservation after a cutting process is finished after posture conversion; and forward conveying can be executed again by conducting posture conversion again, and the surface of the to-be-pressed blank is pretreated through the extrusion pretreatment assembly when the to-be-pressed blank rotates and stretches out, so that the yield after extrusion forming is improved.

Description

Technical Field

[0001] The invention relates to the technical field of metal processing, in particular to a rod-rotating mechanism for an extruded aluminum alloy cast rod heating furnace. Background Art

[0002] Aluminum profiles are aluminum alloy industrial materials produced by hot extrusion. Before extrusion, a pusher is needed to push the aluminum alloy cast bars into the blank preheating furnace to heat them to between 400℃ and 540℃. Then, the blanks to be pressed are pushed out for cutting and transported to the extruder for extrusion molding. After cutting, a pusher is needed to push the blanks to be pressed back into the furnace for heat preservation. After the extruder finishes working, the blanks to be pressed are pushed out again. The existing rod discharging mechanism only has a pushing function and cannot rotate the cast rods in the billet preheating furnace, because the billet preheating furnace uses the electric induction principle to heat the cast rods. If there is residual stress from heat treatment in the aluminum cast rods, it will cause uneven heating, which will affect the quality of the cast rods after extrusion molding. At the same time, after the aluminum casting rod is heated to a high temperature, an oxide layer will be generated on its surface. The material of the oxide layer is aluminum oxide. Because aluminum oxide is highly brittle, the oxide layer is easily broken during the extrusion process, resulting in cracks, peeling or burrs on the surface of the molded part. Therefore, a rod-discharging mechanism for an extruded aluminum alloy cast rod heating furnace is proposed to solve the above problems. Summary of the invention

[0003] The purpose of the present invention is to solve the problem that the rod discharging mechanism of the aluminum alloy casting rod heating furnace in the prior art cannot evenly heat the aluminum billet to be pressed and cannot remove the oxide layer, and to propose a rotary rod discharging mechanism of the extruded aluminum alloy casting rod heating furnace.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: The extruded aluminum alloy casting rod heating furnace rotation adjustment rod discharging mechanism comprises a billet preheating furnace, a conveying slide, billet to be pressed and an extruder, one end of the billet preheating furnace is provided with a rotation adjustment component for driving the billet to be pressed to move and rotate, the other end of the billet preheating furnace is provided with an extrusion pretreatment component for grinding the oxide layer on the surface of the billet to be pressed, the conveying slide is located at the end of the rotation adjustment component away from the billet preheating furnace, the billet to be pressed is located in the conveying slide, and the extruder is adjacent to the billet preheating furnace; The rotation adjustment assembly includes a casing, in which a plurality of roller adjustment units are fixedly installed, and two oppositely arranged roller adjustment units form a group, a group of vertically arranged roller adjustment units are fixedly installed on the inner wall in the middle of the casing, and two groups of horizontally arranged roller adjustment units are fixedly installed on the inner side walls at both ends of the casing, and the gap between each group of roller adjustment units matches the diameter of the blank to be pressed.

[0005] Preferably, a conveyor chain is arranged at the center of the bottom of the conveyor slide, and a plurality of auxiliary rollers are rotatably connected to both sides of the bottom of the conveyor slide to reduce the resistance of the blank to be pressed when rotating.

[0006] Preferably, the roller adjustment unit comprises a rotating platform and a driving roller, a rotating mounting seat for adjusting the working angle of the driving roller is fixedly mounted on the table top of the rotating platform, and an adjusting motor is fixedly connected to the back side of the rotating platform.

[0007] Preferably, one side of the driving roller is rotatably connected to the inner side wall of the rotating mounting seat, and the other side of the driving roller is connected to a driving motor through the side wall of the rotating mounting seat, and the driving motor is fixedly connected to the outer side wall of the rotating mounting seat.

[0008] Preferably, the extrusion pretreatment component includes a bracket, a transverse moving platform is fixedly installed on the top of the bracket, a screw rod is arranged on the surface of the transverse moving platform, one end of the screw rod is rotatably connected to the transverse moving platform, the other end of the screw rod passes through the transverse moving platform and is connected to a transverse moving motor, a slide is slidably connected to the surface of the transverse moving platform, a plurality of mounting plates are fixedly installed on the surface of the slide, a plurality of grinding units are fixedly installed between the mounting plates, and the bottom of the slide is slidably connected to the screw rod.

[0009] Preferably, the grinding unit includes a plurality of high-damping bearing seats, which are fixedly connected to the inner wall of the mounting plate, and a wire roller is rotatably connected inside the high-damping bearing seat. The wire roller located at one end of the slide is close to the billet to be pressed, and the wire roller located at the other end of the slide is away from the billet to be pressed, so as to avoid the wire roller from contacting the billet to be pressed in a high-temperature state for a long time.

[0010] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention realizes bidirectional motion control of the blank to be pressed by arranging a rotary adjustment component, drives the blank to be pressed to rotate and convey and position to the outlet of the blank preheating furnace through a driving roller, and after the cutting is completed, drives the blank to be pressed to rotate in the opposite direction through the driving roller and retracts into the blank preheating furnace for heat preservation, and in the heat preservation stage, the roller adjustment unit stops conveying and changes its own state through rotation, and after the extruder is completed, drives the blank to be pressed to extend out of the outlet of the blank preheating furnace again, thereby achieving the function of adjusting the position of the blank to be pressed and ensuring the uniformity of heating of the blank to be pressed, thereby improving the molding quality after extrusion.

[0011] 2. The present invention sets an extrusion pretreatment component to be linked with the discharging movement. In the process of the billet to be pressed rotating and extending, the surface of the billet to be pressed is polished by the wire roller, so as to achieve the effect of removing the oxide layer on the surface of the billet to be pressed, thereby improving the uniformity of the plastic flow of the billet to be pressed when being extruded, and further improving the quality of extrusion molding. The high-damping bearing seat can make the wire roller evenly heated, and the traverse motor drives the lead screw to drive the slide to move, so that the wire rollers on both sides of the slide can work in turn, avoiding the wire rollers from being heated for a long time and improving the service life of the wire rollers. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the rod-discharging mechanism of the extruded aluminum alloy cast rod heating furnace proposed by the present invention; Figure 2 It is a structural cross-sectional view of a rotary adjustment component in a rotary adjustment rod discharging mechanism of an extruded aluminum alloy cast rod heating furnace proposed by the present invention; Figure 3 It is a structural schematic diagram of the roller adjustment unit in the rod-discharging mechanism of the extruded aluminum alloy cast rod heating furnace proposed by the present invention during forward conveying; Figure 4 It is a structural schematic diagram of the roller adjustment unit in the rod-discharging mechanism of the extruded aluminum alloy cast rod heating furnace proposed by the present invention during reverse conveying; Figure 5 It is a structural assembly diagram of a roller adjustment unit in a rod-discharging mechanism of an extruded aluminum alloy cast rod heating furnace proposed by the present invention; Figure 6 This is a structural assembly diagram of the extrusion pretreatment components in the rod-rotating mechanism of the extruded aluminum alloy cast rod heating furnace proposed by the present invention.

[0013] In the figure: 1. Blank preheating furnace; 2. Conveying slide; 3. Blank to be pressed; 4. Machine casing; 5. Auxiliary roller; 6. Rotating platform; 7. Driving roller; 8. Rotating mounting seat; 9. Adjusting motor; 10. Driving motor; 11. Bracket; 12. Transverse platform; 13. Screw; 14. Transverse motor; 15. Slide; 16. Mounting plate; 17. High damping bearing seat; 18. Wire roller; 19. Extruder. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention will be clearly and completely described 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0015] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0016] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0017] Example, see Figures 1 to 6 The extruded aluminum alloy casting rod heating furnace rotation adjustment rod discharging mechanism comprises a billet preheating furnace 1, a conveying slide 2 and a billet to be pressed 3, and one end of the billet preheating furnace 1 is provided with a rotation adjustment component for driving the billet to be pressed 3 to move and rotate; The rotary adjustment assembly includes a casing 4, in which six roller adjustment units are fixedly installed, and two of them are opposite to each other. A group of vertically arranged roller adjustment units are fixedly installed on the inner wall of the middle part of the casing 4, and two groups of horizontally arranged roller adjustment units are fixedly installed on the inner side walls at both ends of the casing 4, respectively. The gap between each group of roller adjustment units matches the diameter of the blank 3 to be pressed; The other end of the billet preheating furnace 1 is provided with an extrusion pretreatment component for grinding the oxide layer on the surface of the billet 3 to be pressed. The conveying slide 2 is located at the end of the rotating adjustment component away from the billet preheating furnace 1. The billet 3 to be pressed is located in the conveying slide 2, and the extruder 19 is adjacent to the billet preheating furnace 1.

[0018] Furthermore, a conveyor chain is provided at the center of the bottom of the conveyor slide 2, and a plurality of auxiliary rollers 5 are rotatably connected to both sides of the bottom of the conveyor slide 2 to reduce the resistance of the blank 3 to be pressed when rotating; Further, the roller adjustment unit includes a rotating platform 6 and a driving roller 7. A rotating mounting seat 8 for adjusting the working angle of the driving roller 7 is fixedly installed on the table of the rotating platform 6. An adjusting motor 9 is fixedly connected to the back of the rotating platform 6. One side of the driving roller 7 is rotatably connected to the inner side wall of the rotating mounting seat 8. The other side of the driving roller 7 is connected to a driving motor 10 through the side wall of the rotating mounting seat 8. The driving motor 10 is fixedly connected to the outer side wall of the rotating mounting seat 8. It is worth noting that the roller adjustment unit has the following features: Figure 3 and Figure 4 The two working states shown are Figure 3 In the state shown, the roller adjustment unit can drive the blank 3 to be pressed to rotate at high speed and extend slowly. Figure 4 In the state shown, the blank 3 to be pressed can be driven to retract into the blank preheating furnace 1 by the roller adjustment unit.

[0019] A further advantage of adopting the above method is that when the conveyor chain pushes the blank 3 to be pressed into the casing 4, the blank 3 to be pressed is driven by the driving roller 7 to rotate and move toward the outlet of the blank preheating furnace 1, so that the blank 3 to be pressed is heated more evenly by rotation. While waiting for the cutting machine to work, the motor 9 is adjusted to drive the rotating platform 6 to rotate, so that the rotating mounting seat 8 drives the driving roller 7 to rotate to Figure 4 In the state shown, after the cutting is completed, the billet 3 to be pressed is driven by the driving roller 7 to rotate in the opposite direction and retract into the billet preheating furnace 1 for insulation, waiting for the extruder 19 to work. During the insulation stage, the roller adjustment unit is on standby and changes to Figure 3 In the state shown, the extruder 19 is waiting to work, so that the bidirectional movement control of the blank 3 to be pressed is realized and the heating uniformity of the blank 3 to be pressed is ensured.

[0020] It should be noted that the cutting machine is a prior art and will not be described in detail.

[0021] Further, the extrusion pretreatment component includes a bracket 11, a traverse platform 12 is fixedly installed on the top of the bracket 11, a screw rod 13 is arranged on the surface of the traverse platform 12, one end of the screw rod 13 is rotatably connected to the traverse platform 12, the other end of the screw rod 13 passes through the traverse platform 12 and is connected to a traverse motor 14, a slide 15 is slidably connected to the surface of the traverse platform 12, a plurality of mounting plates 16 are fixedly installed on the surface of the slide 15, a plurality of grinding units are fixedly installed between the mounting plates 16, the bottom of the slide 15 is slidably connected to the screw rod 13, the grinding unit includes a plurality of high-damping bearing seats 17, the high-damping bearing seats 17 are fixedly connected to the inner side wall of the mounting plate 16, a wire roller 18 is rotatably connected in the high-damping bearing seat 17, the wire roller 18 at one end of the slide 15 is close to the blank 3 to be pressed, and the wire roller 18 at the other end of the slide 15 is away from the blank 3 to be pressed, so as to prevent the wire roller 18 from contacting the blank 3 to be pressed under high temperature for a long time; A further advantage of adopting the above method is that, during the process of the blank 3 to be pressed rotating and extending, the surface of the blank 3 to be pressed is polished by the wire roller 18, so as to achieve the effect of removing the oxide layer on the surface of the blank 3 to be pressed, improve the uniformity of the plastic flow of the blank 3 to be pressed, and thus improve the quality of subsequent extrusion molding. Under the damping effect of the high-damping bearing seat 17, the wire roller 18 can be driven to rotate slowly by the friction force when the blank 3 to be pressed rotates, so that the wire roller 18 is evenly heated. After the blank 3 to be pressed is retracted into the blank preheating furnace 1, the transverse motor 14 drives the screw rod 13 to rotate, and the slide 15 is driven to translate by the screw rod 13, so that the wire roller 18 is away from the outlet of the blank preheating furnace 1, and at the same time drives another group of wire rollers 18 to move to the working position, so as to avoid the wire roller 18 being heated for a long time and ensure the thermal operation stability of the wire roller 18.

[0022] When the present invention is in use, after the blank to be pressed 3 is placed in the conveying slide 2, the blank to be pressed 3 is pushed into the casing 4 by the conveying chain in the conveying slide 2. After the blank to be pressed 3 enters the casing 4, the blank to be pressed 3 is driven by the driving roller 7 to rotate and move toward the outlet of the blank preheating furnace 1, so that the portion of the blank to be pressed 3 located in the blank preheating furnace 1 can be evenly heated, thereby avoiding the residual stress of heat treatment affecting the quality after extrusion molding; After the blank 3 to be pressed leaves the outlet of the blank preheating furnace 1, it contacts the wire roller 18, and the surface of the blank 3 to be pressed is polished by the wire roller 18, so as to achieve the effect of removing the oxide layer on the surface of the blank 3 to be pressed, and to prevent the oxide layer from breaking and entering the blank 3 to be pressed, thereby preventing cracks, peeling or burrs on the surface of the molded part, improving the uniformity of the plastic flow of the blank 3 to be pressed when it is extruded by the extruder 19, achieving the effect of extrusion pretreatment on the surface of the blank 3 to be pressed during the rod discharging process, and improving the yield rate after extrusion molding; The polished blank 3 to be pressed continues to extend until it enters a suitable cutting position. At this time, the driving motor 10 is on standby to stop the movement and rotation of the blank 3 to be pressed, and the blank is cut by the cutting machine. While waiting for the cutting machine to work, the motor 9 is adjusted to drive the rotating platform 6 to rotate 180 degrees, so that the rotating mounting seat 8 drives the driving roller 7 to rotate to Figure 4 The status shown; After the cutting is completed, the push mechanism in the prior art pushes the cut blank 3 to be pressed into the working area of ​​the extruder 19, and then the driving motor 10 continues to work and drives the blank 3 to rotate in the opposite direction through the driving roller 7 and retracts it into the blank preheating furnace 1 for insulation to wait for the extruder 19 to complete the work. During the insulation stage, the motor 9 is adjusted to drive the rotating platform 6 to rotate 180 degrees again, so that the rotating mounting seat 8 drives the driving roller 7 to rotate to Figure 3In the state shown, at the same time, the transverse motor 14 drives the screw rod 13 to rotate, and the slide 15 is driven to translate through the screw rod 13, so that the wire roller 18 is away from the outlet of the blank preheating furnace 1, and at the same time drives another group of wire rollers 18 to move to the working position, so as to avoid the wire roller 18 being heated for a long time, thereby ensuring the thermal operation stability of the wire roller 18 and improving its service life.

[0023] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rod discharging mechanism for a heating furnace for extruding aluminum alloy cast rods, comprising a billet preheating furnace (1), a conveying slideway (2), billets to be pressed (3) and an extruder (19), characterized in that: A rotary adjustment component for driving the billet (3) to be pressed to move and rotate is disposed at one end of the billet preheating furnace (1), and an extrusion pretreatment component for grinding the oxide layer on the surface of the billet (3) to be pressed is disposed at the other end of the billet preheating furnace (1); the conveying slideway (2) is located at the end of the rotary adjustment component away from the billet preheating furnace (1); the billet (3) to be pressed is located in the conveying slideway (2); and the extruder (19) is adjacent to the billet preheating furnace (1); The rotary adjustment assembly comprises a casing (4), a plurality of roller adjustment units are fixedly mounted in the casing (4), and two roller adjustment units arranged opposite to each other form a group, a group of vertically mounted roller adjustment units are fixedly mounted on the inner wall in the middle of the casing (4), and two groups of horizontally mounted roller adjustment units are fixedly mounted on the inner side walls at both ends of the casing (4), and the gap between each group of roller adjustment units matches the diameter of the blank (3) to be pressed.

2. The rod-discharging mechanism of the extruded aluminum alloy cast rod heating furnace according to claim 1, characterized in that: A conveyor chain is arranged at the center of the bottom of the conveyor slide (2), and a plurality of auxiliary rollers (5) are rotatably connected to both sides of the bottom of the conveyor slide (2) to reduce the resistance of the blank (3) to be pressed when it rotates.

3. The rod-discharging mechanism of the extruded aluminum alloy cast rod heating furnace according to claim 1, characterized in that: The roller adjustment unit comprises a rotating platform (6) and a driving roller (7); a rotating mounting seat (8) for adjusting the working angle of the driving roller (7) is fixedly mounted on the table top of the rotating platform (6); and an adjustment motor (9) is fixedly connected to the back of the rotating platform (6).

4. The rod-discharging mechanism of the extruded aluminum alloy cast rod heating furnace according to claim 3, characterized in that: One side of the driving roller (7) is rotatably connected to the inner side wall of the rotating mounting seat (8), and the other side of the driving roller (7) is connected to a driving motor (10) through the side wall of the rotating mounting seat (8), and the driving motor (10) is fixedly connected to the outer side wall of the rotating mounting seat (8).

5. The rod-discharging mechanism of the extruded aluminum alloy cast rod heating furnace according to claim 1, characterized in that: The extrusion pretreatment component comprises a bracket (11), a transverse platform (12) is fixedly mounted on the top of the bracket (11), a screw rod (13) is arranged on the surface of the transverse platform (12), one end of the screw rod (13) is rotatably connected to the transverse platform (12), the other end of the screw rod (13) passes through the transverse platform (12) and is connected to a transverse motor (14), a slide (15) is slidably connected to the surface of the transverse platform (12), a plurality of mounting plates (16) are fixedly mounted on the surface of the slide (15), a plurality of grinding units are fixedly mounted between the mounting plates (16), and the bottom of the slide (15) is slidably connected to the screw rod (13).

6. The rod-discharging mechanism of the extruded aluminum alloy cast rod heating furnace according to claim 5, characterized in that: The grinding unit comprises a plurality of high-damping bearing seats (17), wherein the high-damping bearing seats (17) are fixedly connected to the inner side wall of the mounting plate (16), and a steel wire roller (18) is rotatably connected inside the high-damping bearing seats (17). The steel wire roller (18) located at one end of the slide (15) is in close contact with the blank to be pressed (3), and the steel wire roller (18) located at the other end of the slide (15) is away from the blank to be pressed (3), so as to prevent the steel wire roller (18) from contacting the blank to be pressed (3) in a high-temperature state for a long time.

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