Aluminum bar conveying system

Abstract

The invention relates to the technical field of bar conveying, and discloses an aluminum bar conveying system which comprises two placing inclined rails, two flat-end A-shaped frames, a driving unit and conveying wheels, lifting driving structures are installed on the flat-end A-shaped frames, lifting hooks are fixed to the lifting driving structures, guiding inclined rails are installed at the tops of the placing inclined rails, and the guiding inclined rails are fixed to the flat-end A-shaped frames. The lowest point of the guide inclined rail is higher than the conveying wheel, an aluminum bar rolls to the conveying wheel through the guide inclined rail, and a plurality of unloading positioning plates are rotationally connected between the guide inclined rail and the conveying wheel; the guide inclined rail is additionally arranged, the smoothness of the aluminum bar before entering the conveying wheel is improved, meanwhile, the width of the support is increased, the structural stability is improved, meanwhile, the force unloading positioning plate unloads the aluminum bar and smoothly guides the aluminum bar to the conveying wheel, and the problem that the aluminum bar cannot smoothly enter the conveying wheel when a closed-loop type conveying structure turns over at the angle of a lifting hook is solved. And the aluminum bar can move at a constant speed at the guide inclined rail or is always in a controllable movement range.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rod conveying, in particular to an aluminum rod conveying system. BACKGROUND

[0002] In the aluminum extrusion process, the equal-length aluminum rods need to be sequentially fed into the preheating furnace or the extrusion production line. After preheating is completed, the aluminum rods are pushed by the extrusion mechanism for extrusion molding.

[0003] The aluminum rod is a solid structure, and the large size parameters of the length and diameter of the aluminum rod during the extrusion molding process result in heavy quality. The aluminum rods are sequentially arranged on the platform, and the aluminum rods are lifted to the target height by the conveying mechanism and are conveyed along the axial direction of the aluminum rods to the preheating furnace or the extrusion production line by the roller.

[0004] The most commonly used at present is a circulating aluminum rod conveying mechanism. The principle is to use a closed-loop continuous power structure, such as a chain wheel, a chain structure, etc. The chain is used as a carrier to fix the bracket. The bracket is rotated to lift the aluminum rod below, and when the bracket is raised, the aluminum rod is fed to the conveying roller.

[0005] The conveying roller is supported and lifted by the bracket. When the bracket rotates at an angle, the aluminum rod starts to have a tendency to separate from the bracket. If the conveying roller is too close to the bracket, the aluminum rod cannot be completely guided to the conveying roller due to the limitation of the bracket. Therefore, the aluminum rod cannot move to the conveying roller under the guidance control, resulting in uncontrollable kinetic energy of the aluminum rod on the conveying roller. When the distance between the bracket and the conveying roller is narrow, the center of gravity is high. When subjected to a horizontal motion and the longitudinal force arm is greater than the horizontal force arm, the bracket has a tendency to overturn, that is, the bracket is unevenly stressed, and the material is easily fatigued and broken over time. SUMMARY

[0006] The purpose of the present application is to provide an aluminum rod conveying system. A guide inclined rail is added to increase the smoothness of the aluminum rod before entering the conveying wheel. The width of the bracket is increased to increase the structural stability. The unloading positioning plate unloads the aluminum rod and smoothly guides it to the conveying wheel. The unloading behavior occurs in the middle of the bracket, which reduces the impact on the bracket material and achieves smooth conveying to solve the problems in the background technology.

[0007] To achieve the above purpose, the present application provides the following technical scheme: An aluminum rod conveying system, comprising two placing inclined rails, two flat-end A-shaped frames, a driving unit and a conveying wheel, each of the flat-end A-shaped frames is provided with a lifting driving structure, a lifting hook is fixed to the lifting driving structure, the lifting hook lifts the aluminum rod on the placing inclined rail to the conveying wheel, the conveying wheel is driven to rotate by the driving unit, the conveying wheel conveys the aluminum rod to a preheater along an axial direction, a conveying support is fixedly connected to a side of the flat-end A-shaped frame away from the placing inclined rail, and the conveying wheel and the driving unit are installed on the top of the conveying support. A guide inclined rail is installed on the top of the placing inclined rail, the lowest point of the guide inclined rail is higher than the conveying wheel, the aluminum rod rolls down to the conveying wheel through the guide inclined rail, and a plurality of force relieving positioning plates are rotationally connected between the guide inclined rail and the conveying wheel.

[0008] As a further scheme of the present application, a limiting arc surface is formed in the side surface of the force relieving positioning plate, the arc surface of the limiting arc surface is opposite to the arc surface of the lifting hook, the rotation direction of the force relieving positioning plate is forward and reverse rotation, and the width of the force relieving positioning plate gradually increases from the rotation center to the limiting arc surface.

[0009] As a further scheme of the present application, the placing inclined rail and the flat-end A-shaped frame are fixedly connected through an inverse slope.

[0010] As a further scheme of the present application, the top surface of the guide inclined rail extends to the top of the shaft seat of the lifting driving structure and the shaft seat of the conveying wheel at both ends.

[0011] As a further scheme of the present application, a rubber layer is attached to the arc-shaped recessed surface of the conveying wheel, and the rubber layer is composed of a plurality of rubber pieces.

[0012] As a further scheme of the present application, the end of the lifting hook away from the lifting driving structure has a sharp head, and the width of the lifting hook gradually decreases from the lifting driving structure to the sharp head.

[0013] As a further scheme of the present application, the force relieving positioning plate rotates clockwise until the limiting arc surface corresponds to the arc-shaped recessed surface of the conveying wheel, and the highest point of the tangent surface of the circular arc surface of the force relieving positioning plate and the limiting arc surface is flush with the lowest point of the guide inclined rail.

[0014] As a further scheme of the present application, the force relieving positioning plate rotates counterclockwise, the vertical distance between the sharp end of the limiting arc surface and the guide inclined rail is not less than the diameter of the aluminum rod, and when the aluminum rod separates from the lifting hook and enters the guide inclined rail, the aluminum rod is located at the included angle between the guide inclined rail and the force relieving positioning plate.

[0015] The elastic element can be a torsion spring or a tension spring, the angle between the force relieving positioning plate and the guide inclined rail is less than 90 degrees in the static state of the force relieving positioning plate, and the force relieving positioning plate is not perpendicular to the horizontal plane. The force relieving positioning plate is driven to rotate by the power driving element.

[0016] Compared with the prior art, the beneficial effects of the present application are: The guide inclined rail is additionally arranged to increase the smoothness of the aluminum rod before entering the conveying wheel, and the support width is increased, the structural stability is increased, the force relieving positioning plate is used to relieve the force of the aluminum rod and smoothly guide the aluminum rod to the conveying wheel, the force relieving behavior occurs in the middle part of the support, the influence on the support material is reduced, and the problem that the aluminum rod cannot smoothly enter the conveying wheel when the hook angle of the closed-loop conveying structure is turned is solved, so that the aluminum rod can move at a uniform speed at the guide inclined rail or always be in a controllable motion range. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 It is a perspective view of an aluminum rod conveying system; Figure 2 It is a top view of an aluminum rod conveying system; Figure 3 It is a perspective view of an aluminum rod conveying system; Figure 4 It is a perspective view of an aluminum rod conveying system after the force relieving positioning plate is rotated; Figure 5 It is a use schematic view of a force relieving positioning plate in an aluminum rod conveying system; Figure 6 It is a flat posture schematic view of a force relieving positioning plate in an aluminum rod conveying system; Figure 7 It is a schematic view of an aluminum rod in an unguided state; Figure 8 It is a schematic view of the tangential angle of a conveying wheel in the motion trajectory of an aluminum rod; In the figure: 1, placing inclined rail; 11, reverse inclined surface; 2, flat end A type frame; 21, lifting driving structure; 22, lifting hook; 221, sharp head; 3, guide inclined rail; 4, conveying support; 5, driving unit; 6, force relieving positioning plate; 61, limiting arc surface; 7, conveying wheel. DETAILED DESCRIPTION

[0019] Referring to Figures 1-8 In this embodiment: Two placing inclined rails 1, two flat-end A-shaped frames 2, a driving unit 5, and a conveying wheel 7 are included. The flat-end A-shaped frame 2 is provided with a lifting driving structure 21. The lifting driving structure 21 is fixed with a lifting hook 22. The lifting hook 22 lifts the aluminum bar on the placing inclined rail 1 to the conveying wheel 7. The conveying wheel 7 is driven to rotate by the driving unit 5. The conveying wheel 7 conveys the aluminum bar to the preheating machine along the axial direction.

[0020] The length of the aluminum bar is greater than the distance between the two placing inclined rails 1. The two ends of the aluminum bar protrude on the opposite sides of the two placing inclined rails 1. The flat-end A-shaped frame 2 is provided with a lifting driving structure 21. The lifting driving structure 21 is a closed-loop driving structure, for example, a chain wheel and a chain are matched. At the same time, the lifting hook 22 can be matched with the flat-end A-shaped frame 2 to guide the sliding groove structure to ensure the stability of the posture of the lifting hook 22. The lifting hook 22 rotates to the lower side of the placing inclined rail 1. The lifting hook 22 hooks the aluminum bar and lifts the aluminum bar upward. The driving unit 5 is a multi-link transmission structure. The driving unit 5 drives multiple conveying wheels 7 to rotate in the same direction and is driven by a motor.

[0021] In order to solve the problem that the lifting hook 22 cannot directly guide the aluminum bar into the conveying wheel 7, and to solve the problem that due to this problem, the kinetic energy is impacted on the elevated frame below the conveying wheel 7, which causes material fatigue problems on the basis of high gravity center, the following improvements are made: The improvement content is that the flat-end A-shaped frame 2 is fixedly connected with a conveying support 4 away from the placing inclined rail 1. The conveying wheel 7 and the driving unit 5 are installed on the top of the conveying support 4. The top of the placing inclined rail 1 is provided with a guide inclined rail 3. The lowest point of the guide inclined rail 3 is higher than the conveying wheel 7. The aluminum bar rolls down to the conveying wheel 7 through the guide inclined rail 3. A plurality of force unloading positioning plates 6 are rotationally connected between the guide inclined rail 3 and the conveying wheel 7. Limiting arc surfaces 61 are formed on the side surfaces of the force unloading positioning plates 6. The arc surfaces of the limiting arc surfaces 61 are opposite to the arc surfaces of the lifting hook 22. The rotation direction of the force unloading positioning plates 6 is forward and reverse rotation. The width from the rotation center of the force unloading positioning plates 6 to the limiting arc surfaces 61 gradually increases.

[0022] After the lifting hook 22 lifts the aluminum bar, the angle of the lifting hook 22 changes. The aluminum bar first falls at the guide inclined rail 3. Because the tangent of the arc surface of the conveying wheel 7 and the horizontal direction has a large angle, referring to Figure 8Therefore, through the small slope guiding transition of the guide ramp 3, the aluminum bar slides to the conveying wheel 7 at the guide ramp 3, the force relieving positioning plate 6 rotates counterclockwise or reverses, the force relieving positioning plate 6 reverses to the upper side of the guide ramp 3, and the tip of the limiting arc surface 61 has a vertical spacing with the guide ramp 3 not less than the diameter of the aluminum bar. When the aluminum bar separates from the lifting hook 22 and enters the guide ramp 3, the aluminum bar is located at the included angle between the guide ramp 3 and the force relieving positioning plate 6. At this time, the aluminum bar rotates clockwise or forwards, the kinetic energy of the aluminum bar at the guide ramp 3 is applied to the force relieving positioning plate 6, and the included angle between the force relieving positioning plate 6 and the guide ramp 3 gradually expands, so that the aluminum bar can move uniformly at the guide ramp 3 or always be in a controllable motion range, avoiding the problem that the kinetic energy of the aluminum bar gradually increases to cause strong impact on the conveying wheel 7.

[0023] The force applied by the aluminum bar to the force relieving positioning plate 6 is applied to the rotating structure of the force relieving positioning plate 6. When the number of the force relieving positioning plates 6 is multiple, the kinetic energy applied by the aluminum bar to the force relieving positioning plate 6 is applied to the fixed connection between the force relieving positioning plate 6 and the shaft when the force relieving positioning plate 6 rotates through the shaft. Therefore, the width gradually increases from the rotating center of the force relieving positioning plate 6 to the limiting arc surface 61, which can not only ensure the structural strength, but also further guide, as follows: The force relieving positioning plate 6 rotates clockwise until the limiting arc surface 61 corresponds to the arc concave surface of the conveying wheel 7, and the highest point of the tangent surface of the arc surface of the force relieving positioning plate 6 and the lowest point of the guide ramp 3 are flush.

[0024] Please refer to Figure 6 When the force relieving positioning plate 6 lies flat, the highest point of the tangent surface of the arc surface of the force relieving positioning plate 6 and the lowest point of the guide ramp 3 are flush, and the force relieving positioning plate 6 always rotates with the movement of the aluminum bar. Finally, the force relieving positioning plate 6 is guided to the conveying wheel 7 through the inclined surface. During the whole process, the force relieving positioning plate 6 is in contact with the aluminum bar. It is just because of the contact between the force relieving positioning plate 6 and the aluminum bar that the force relieving positioning plate 6 can always control the motion trajectory of the aluminum bar, thereby avoiding the impact of the aluminum bar on the conveying wheel 7.

[0025] Further, the arc-shaped concave surface of the conveying wheel 7 is attached with a rubber layer, and the rubber layer is composed of multiple rubber pieces. Since the conveying wheel 7 is used to increase the friction with the aluminum bar, the friction can be increased by combining the aluminum bar pressure with the rubber layer. However, the rubber layer has a defect that if the aluminum bar impacts the conveying wheel 7, the rubber layer will deform, and the rubber layer does not have rigidity, and the aluminum bar will deform under the influence of kinetic energy and the rubber layer, causing the aluminum bar to easily roll out of the concave surface of the conveying wheel 7. Therefore, the rigid limiting of the aluminum bar by the limiting arc surface 61 can avoid this problem. The multiple rubber pieces have gaps, and the rubber deformation will not cause the entire rubber piece to be squeezed, avoiding the problem of the closed-loop rubber separating from the inner cylinder of the conveying wheel 7 under impact. When the conveying wheel 7 is conveying, the unloading positioning plate 6 can be further rotated clockwise to avoid axial friction between the unloading positioning plate 6 and the aluminum bar.

[0026] The inclined rail 1 is fixedly connected with the flat-end A-shaped frame 2 through the reverse slope 11. Please refer to Figure 3 In the mass processing process, the number of aluminum bars placed above the inclined rail 1 is continuously supplemented. The advantage of setting the reverse slope 11 is that the kinetic energy of the rear aluminum bar can be used to affect the front aluminum bar, so that the front aluminum bar is lifted to a high position and is close to the lifting hook 22. The height of the aluminum bar lifted by the lifting hook 22 is shortened, and the energy consumption is reduced.

[0027] The top surface of the guide inclined rail 3 extends to the upper side of the shaft seat of the lifting driving structure 21 and the shaft seat of the conveying wheel 7.

[0028] When the top surface of the guide inclined rail 3 extends to the upper side of the shaft seat of the lifting driving structure 21, the lifting hook 22 is rotated to the upper side of the guide inclined rail 3, the distance between the inner diameter bottom surface of the lifting hook 22 and the surface of the guide inclined rail 3 is reduced, the kinetic energy is reduced, and the distance between the bottom end of the guide inclined rail 3 and the conveying wheel 7 is shortened, so that the travel distance of the guide inclined rail 3 and the unloading positioning plate 6 is longer.

[0029] The end of the lifting hook 22 away from the lifting driving structure 21 has a sharp head 221, and the width of the lifting hook 22 gradually decreases from the lifting driving structure 21 to the sharp head 221.

[0030] Please refer to Figure 3 The sharp head 221 can reduce the influence of the subsequent aluminum bar on the lifting hook 22 during the lifting of the bottom aluminum bar. If the end of the lifting hook 22 has a width, the subsequent aluminum bar is easy to act on the corner of the end of the lifting hook 22 during the lifting process, causing the lifting hook 22 to be stuck.

[0031] The elastic member can be a torsion spring or a tension spring. In the static state of the force relief positioning plate 6, the angle between the force relief positioning plate 6 and the guide inclined rail 3 is less than 90 degrees, and the force relief positioning plate 6 is not perpendicular to the horizontal plane. The aluminum bar is relieved by the elastic member, so that the kinetic energy of the aluminum bar entering the conveying wheel 7 is reduced. The advantage is to reduce the application of additional energy, and the disadvantage is that the speed of the aluminum bar moving on the guide inclined rail 3 is not uniform.

[0032] The force relief positioning plate 6 is driven to rotate by the power driving member. The driving member is used to relieve force and drive the force relief positioning plate 6 to rotate at the same time. The aluminum bar is always in contact with the force relief positioning plate 6, and the aluminum bar is always in a controllable state. The driving member drives the force relief positioning plate 6 to rotate, so as to control the movement speed of the aluminum bar. The advantage is that the control is more stable, and the disadvantage is that the additional energy is wasted.

[0033] Both can be selected and used according to actual conditions and needs.

[0034] It is supplemented that, since the force relief behavior occurs between the flat-end A-shaped frame 2 and the conveying support 4, and the flat-end A-shaped frame 2 and the conveying support 4 are fixedly connected and can be regarded as a whole, the entire force relief process occurs in the middle of the flat-end A-shaped frame 2 and the conveying support 4 as a whole. Compared with the aluminum bar acting on the tail of the conveying support 4, the conveying support 4 is more not prone to tilting, and the impact of the kinetic energy of the aluminum bar on the material of the conveying support 4 is reduced.

[0035] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can make equivalent replacements or changes to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. An aluminum rod conveying system, comprising two placing inclined rails (1), two flat-end A-shaped frames (2), a driving unit (5), a conveying wheel (7), the flat-end A-shaped frame (2) is provided with a lifting driving structure (21), the lifting driving structure (21) is fixed with a lifting hook (22), the lifting hook (22) lifts the aluminum rod on the placing inclined rail (1) to the conveying wheel (7), the conveying wheel (7) is driven to rotate by the driving unit (5), and the conveying wheel (7) conveys the aluminum rod to a preheating machine in an axial direction, characterized in that: The flat end A-shaped frame (2) is fixedly connected with a conveying support (4) away from one side of the placing inclined rail (1), and the conveying wheel (7) and the driving unit (5) are installed on the top of the conveying support (4). ​ The top of the placing inclined rail (1) is provided with a guide inclined rail (3), the lowest point of the guide inclined rail (3) is higher than the conveying wheel (7), the aluminum bar falls through the guide inclined rail (3) to the conveying wheel (7), and the guide inclined rail (3) is rotationally connected with a plurality of force-unloading positioning plates (6) between the guide inclined rail (3) and the conveying wheel (7).

2. An aluminum billet delivery system as defined in claim 1, wherein: The side surface of the force-unloading positioning plate (6) is provided with a limiting arc surface (61), the arc surface of the limiting arc surface (61) is opposite to the arc surface of the lifting hook (22), the rotation direction of the force-unloading positioning plate (6) is forward and reverse rotation, and the width of the force-unloading positioning plate (6) gradually increases from the rotation center to the limiting arc surface (61).

3. An aluminum billet delivery system as defined in claim 1, wherein: The placing inclined rail (1) and the flat end A-shaped frame (2) are fixedly connected through an inverse slope (11).

4. An aluminum billet delivery system as defined in claim 1, wherein: The top surface of the guide inclined rail (3) extends to the upper side of the shaft seat of the lifting driving structure (21) and the shaft seat of the conveying wheel (7) at both ends.

5. An aluminum billet delivery system as defined in claim 1, wherein: The arc-shaped concave surface of the conveying wheel (7) is attached with a rubber layer, and the rubber layer is composed of a plurality of rubber pieces.

6. An aluminum billet delivery system as defined in claim 1, wherein: The lifting hook (22) has a sharp end (221) away from the lifting driving structure (21), and the width of the lifting hook (22) gradually decreases from the lifting driving structure (21) to the sharp end (221).

7. An aluminum billet delivery system as defined in claim 2, wherein: The force-unloading positioning plate (6) rotates clockwise until the limiting arc surface (61) corresponds to the arc-shaped concave surface of the conveying wheel (7), the highest point of the tangent surface of the circular arc surface of the force-unloading positioning plate (6) and the limiting arc surface (61) is flush with the lowest point of the guide inclined rail (3).

8. An aluminum billet delivery system as defined in claim 7, wherein: The force-unloading positioning plate (6) rotates counterclockwise, the vertical distance between the sharp end of the limiting arc surface (61) and the guide inclined rail (3) is not less than the diameter of the aluminum bar, and when the aluminum bar separates from the lifting hook (22) and enters the guide inclined rail (3), the aluminum bar is located at the included angle between the guide inclined rail (3) and the force-unloading positioning plate (6).

9. An aluminum billet delivery system as defined in claim 1, wherein: The rotation of the force-unloading positioning plate (6) is provided with an elastic member, which can be a torsion spring or a tension spring, and in the static state of the force-unloading positioning plate (6), the included angle between the force-unloading positioning plate (6) and the guide inclined rail (3) is less than 90 degrees, and the force-unloading positioning plate (6) is not perpendicular to the horizontal plane.

10. An aluminum billet delivery system as defined in claim 1, wherein: The force-unloading positioning plate (6) is driven to rotate by a power driving member.

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