Aluminum rod automatic feeding device

Abstract

The invention discloses an automatic feeding device for aluminum bars, comprising a conveying frame extending forward and backward and a mounting frame fixed on the ground on the right side of the conveying frame, a rotating shaft is installed on the upper left part of the mounting frame, a plurality of rotating disks arranged forward and backward are fixed on the rotating shaft, mounting slots are formed on the outer side walls of the upper, lower, left and right parts of the rotating disk, the mounting slots on the same side of all the rotating disks are aligned forward and backward, and the mounting slots correspond to the conveying frame; circular baffles are fixed on the front and rear outer side walls of the rotating shaft, all the rotating disks are between two circular baffles, a forward and backward moving mechanism is installed on the top surface of the top plate of the mounting frame on the right side of the rotating disk, and two material guide frames are installed on the forward and backward moving mechanism, and the material outlet at the left end of one of the material guide frames faces all the mounting slots on the right side. It can automatically feed and feed aluminum bars without manual loading and unloading, greatly reducing the amount of manual labor and improving processing efficiency.

Description

Technical field:

[0001] The invention relates to the technical field of aluminum bar processing equipment, and more specifically to an automatic aluminum bar feeding device. Background technology:

[0002] When the existing aluminum bars need to be processed, they need to be manually placed on the conveyor rack and gradually transported through the conveyor rack. However, the aluminum bars are generally heavy, reaching about 100 kg, which makes the processing process require manual handling by multiple people, which is very labor-intensive and the effect is not ideal.

[0003] Therefore, some of the existing methods are to lift and transport by crane, and the crane is manually operated for transportation. However, there is no specific clamp for crane transportation, and it is necessary to manually fix it on the hook with straps, etc. for operation, which makes loading and unloading troublesome and greatly reduces the transportation effect and speed. Summary of the invention:

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an automatic aluminum bar feeding device, which can automatically transport and feed aluminum bars without manual loading and unloading, greatly reducing manual labor and improving processing efficiency.

[0005] The solution of the present invention to solve the technical problem is:

[0006] An automatic feeding device for aluminum bars comprises a conveying frame extending forward and backward and a mounting frame fixed on the ground on the right side of the conveying frame, a rotating shaft is installed on the upper left part of the mounting frame, a plurality of rotating disks arranged forward and backward are fixed on the rotating shaft, and mounting slots are formed on the outer side walls of the upper, lower, left and right parts of the rotating disks, the mounting slots on the same side of all the rotating disks are aligned forward and backward, and the mounting slots correspond to the conveying frame;

[0007] Circular baffles are fixed on the front and rear outer walls of the rotating shaft, all rotating disks are located between the two circular baffles, a forward and backward moving mechanism is installed on the top surface of the top plate of the mounting fixing frame on the right side of the rotating disk, and two material guide racks are installed on the forward and backward moving mechanism, and the discharge port at the left end of one of the material guide racks faces all the mounting slots on the right side.

[0008] The front and rear parts of the rotating shaft are movably connected to the connecting seat through bearings. The connecting seat is fixed on the top surface of the top plate of the mounting bracket. A rotating servo motor is fixed on the top surface of the rear part of the top plate of the mounting bracket. The rotating servo motor drives the rotating shaft to rotate.

[0009] The forward and backward moving mechanism includes front and rear fixed plates fixed to the right part of the top plate of the mounting fixed frame, and the two ends of the moving screw extending forward and backward are movably connected to the two fixed plates through bearings, and a moving servo motor is fixed on the outer wall of one of the fixed plates, and the moving servo motor drives the moving screw to rotate, and two moving blocks are screwed on the moving screws, and the top surface of the moving block is fixed on the bottom plate of the corresponding material guide frame.

[0010] A front blocking frame and a rear blocking frame are fixed on the top surface of the top plate of the front and rear mounting fixing frames of the two circular baffles, and a material blocking plate extending forward and backward is fixed to the right side of the front blocking frame and the rear blocking frame. The front material blocking plate blocks the discharge port of the front material guide frame, and the rear material blocking plate corresponds to the discharge port of the rear material guide frame.

[0011] The conveyor frame includes a main frame, and the left and right parts of the top surface of the top plate of the main frame are fixed with fixed side plates extending forward and backward. The two ends of a plurality of conveyor rollers are movably connected to the two fixed side plates through bearings, one end of the conveyor roller extends out of the fixed side plate on the corresponding side and is fixed with a double-row sprocket. In two adjacent double-row sprockets, the conveyor chain is tensioned on the corresponding sprockets of the two adjacent double-row sprockets, and a main conveying drive motor is fixed on the top plate of the main frame. The output shaft of the main conveying drive motor is connected to one end of one of the conveyor rollers (one end extending out of the corresponding fixed side plate) through a coupling.

[0012] A left support plate is fixed to the left side of the fixed side plate at the left side of the top plate of the main frame facing the two circular baffles, and a rear limit baffle extending to the right is fixed to the rear of the left support plate, and the rear limit baffle is located on the left side behind the rear circular baffle;

[0013] A guide reinforcement plate is fixed on the right side wall of the fixed baffle plate on the right side, and the top surface of the guide reinforcement plate is an oblique guide wall surface, which faces the left side between the two circular baffle plates;

[0014] A plurality of front and rear corresponding fixing seats are fixed on the right side wall of the left support plate, a plurality of guide sleeves are fixed on the right side wall of the fixing seat, the limiting anti-collision plate is located on the right side of the fixing seat, a transverse guide rod is fixed on the left side wall of the limiting anti-collision plate, the transverse guide rod is inserted in the corresponding guide sleeve, a guide block is fixed on the left end top surface of the transverse guide rod, the guide block is inserted in the transverse guide groove formed in the middle part of the top surface of the guide sleeve, a second buffer spring is inserted in the guide sleeve, one end of the second buffer spring forces the right side wall of the fixing seat, the other end of the second buffer spring forces the left side wall of the limiting anti-collision plate, and an elastic protective layer is fixed on the right side wall of the limiting anti-collision plate.

[0015] An upper horizontal plate is fixed to the top surface of the left support plate and the rear limit baffle, and the right end of the upper horizontal plate is movably connected to an arc-shaped baffle via a hinge shaft, one end of a plurality of third buffer springs is fixed to the left side wall of the arc-shaped baffle, and the other ends of all the third buffer springs are fixed to the right side wall of the support frame fixed on the top surface of the upper horizontal plate, and the arc-shaped baffle is close to the outer side walls of the left and upper parts of all rotating disks.

[0016] The outstanding effects of the present invention are:

[0017] Compared with the existing technology, it can automatically transport and load aluminum bars without manual loading and unloading, greatly reducing manual labor and improving processing efficiency. Description of the drawings:

[0018] Figure 1 It is a partial structural schematic diagram of the present invention;

[0019] Figure 2 yes Figure 1 A partial enlarged view of

[0020] Figure 3 yes Figure 1 a partial enlarged view of another part;

[0021] Figure 4 is a partial top view of the present invention;

[0022] Figure 5 yes Figure 4 A partial enlarged view of . Specific implementation method:

[0023] For example, see Figures 1 to 5 As shown, an automatic feeding device for aluminum bars comprises a conveying frame 10 extending forward and backward and a mounting frame 20 fixed on the ground on the right side of the conveying frame 10, a rotating shaft 21 is installed on the upper left part of the mounting frame 20, a plurality of rotating disks 22 arranged forward and backward are fixed on the rotating shaft 21, and mounting slots 23 are formed on the outer side walls of the upper, lower, left and right parts of the rotating disks 22, and the mounting slots 23 on the same side of all the rotating disks 22 are aligned forward and backward, and the mounting slots 23 correspond to the conveying frame 10;

[0024] Circular baffles 24 are fixed on the front and rear outer walls of the rotating shaft 21, and all the rotating disks 22 are located between the two circular baffles 24. A forward and backward moving mechanism 30 is installed on the top surface of the top plate of the mounting fixing frame 20 on the right side of the rotating disk 22, and two material guide racks 40 are installed on the forward and backward moving mechanism 30, and the discharge port at the left end of one of the material guide racks 40 faces all the mounting slots 23 on the right side.

[0025] The front and rear parts of the rotating shaft 21 are movably connected to the connecting seat 25 through bearings. The connecting seat 25 is fixed on the top surface of the top plate of the mounting bracket 20. A rotating servo motor 26 is fixed on the top surface of the rear part of the top plate of the mounting bracket 20. The output shaft of the rotating servo motor 26 is connected to the rear end of the rotating shaft 21 through a coupling.

[0026] The front-to-back moving mechanism 30 includes front and rear fixed plates 31 fixed to the right part of the top plate of the mounting fixed frame 20, and the two ends of the moving screw 32 extending forward and backward are movably connected to the two fixed plates 31 through bearings, and a moving servo motor 33 is fixed to the outer wall of one of the fixed plates 31, and the output shaft of the moving servo motor 33 is a spline shaft, which is inserted into the spline hole at one end of the corresponding moving screw 32 and drives the moving screw 32 to rotate, and two moving blocks 34 are screwed on the moving screw 31, and the top surface of the moving block 34 is fixed to the bottom plate of the corresponding material guide frame 40.

[0027] Furthermore, the material guide frame 40 includes a bottom plate, and side fixing plates are fixed to the front and rear parts of the top surface of the bottom plate. Both ends of a plurality of drive rollers 41 are movably connected to the two side fixing plates through bearings. All drive rollers 41 are close to each other on the left and right to form a conveying roller conveyor extending obliquely upward from left to right, and the left end of the conveying roller conveyor is a material discharge port.

[0028] A front blocking frame 50 and a rear blocking frame 60 are fixed on the top surface of the top plate of the mounting frame 20 at the front and rear of the two circular baffles 24, and a material blocking plate 51 extending forward and backward is fixed to the right side of the front blocking frame 50 and the rear blocking frame 60. The front material blocking plate 51 blocks the discharge port of the front material guide frame 40, and the rear material blocking plate 51 corresponds to the discharge port of the rear material guide frame 40. The front blocking frame 50 and the rear blocking frame 60 can block the discharge port of the other material guide frame 40 when one of the material guide frames 40 outputs aluminum bars, so as to prevent the aluminum bars therein from rolling out.

[0029] Furthermore, two guide groove bars 1 extending forward and backward are fixed to the top surface of the top plate of the mounting fixing frame 20, and a guide slider 42 is fixed to the bottom surface of the bottom plate of the guide frame 40. The guide slider 42 is inserted into the guide groove extending forward and backward formed on the top surface of the corresponding guide groove bar 1 and cooperates with the guide groove.

[0030] Furthermore, a sensing protrusion 341 is fixed on the right side wall of the moving block 34, a connecting plate is fixed on the middle of the right part of the top plate of the mounting bracket 20, a first proximity switch 2 is fixed on the connecting plate, and the sensing protrusion 341 corresponds to the sensing end of the first proximity switch 2. The sensing protrusion 341 is sensed by the sensing end of the first proximity switch 2, indicating that the material guide rack 40 is in the middle, and its discharge port faces the right part between the two circular baffles 24.

[0031] Furthermore, all the installation slots 23 of the rotating disk 22 are evenly distributed on the outer side wall of the rotating disk 22 with the central axis of the rotating disk 22 as the center.

[0032] Side sensing blocks 3 are fixed on the outer side walls of the left, right, top and bottom of the circular baffle 24. The side sensing blocks 3 correspond to the corresponding mounting slots 23 front to back. A vertical screw-connected through hole is formed on the top plate of the mounting bracket 20. The second proximity switch 4 is screwed in the vertical screw-connected through hole, and its top end corresponds to the side sensing block 3 at the bottom.

[0033] Furthermore, a connecting beam 43 is fixed to the top surface between the left ends of the two side fixing plates of the guide rack 40, and a plurality of vertical through holes are formed in the middle portion of the connecting beam 43. The screw parts of a plurality of adjusting bolts 44 are inserted into the corresponding vertical through holes, and the bottom ends of the screw parts of all adjusting bolts 44 extend out of the bottom ends of the vertical through holes and are fixed on the top surface of the same clamping plate 45. An elastic block 46 is fixed to the bottom surface of the clamping plate 45, and an oblique guide wall is formed on the lower portion of the right side wall of the elastic block 46, with the right end being higher and the left end being lower. A buffer spring 47 is inserted into the lower portion of the screw part of the adjusting bolt 44, and the bottom end of the buffer spring 47 forces on the top surface of the clamping plate 45, and the top end of the buffer spring 47 forces on the bottom surface of the connecting beam 43. An adjusting nut 48 is threaded on the screw part of the adjusting bolt 44, and the bottom surface of the adjusting nut 48 presses against the top surface of the connecting beam 43.

[0034] Further, the conveyor frame 10 includes a main frame, and the left and right parts of the top surface of the top plate of the main frame are fixed with fixed side plates 11 extending forward and backward. Both ends of a plurality of conveyor rollers 12 are movably connected to the two fixed side plates 11 through bearings, and one end of the conveyor roller 12 extends out of the fixed side plate 11 on the corresponding side and is fixed with a double-row sprocket 13. In two adjacent double-row sprockets 13, a conveyor chain 14 is tensioned on the corresponding sprockets of the two adjacent double-row sprockets 13. A main conveyor drive motor 15 is fixed on the top plate of the main frame, and the output shaft of the main conveyor drive motor 15 is connected to one end of one of the conveyor rollers 12 through a coupling, and this end is an end extending out of the corresponding fixed side plate 11.

[0035] A left support plate 70 is fixed to the left side of the fixed side plate 11 on the left side of the top plate of the main frame facing the two circular baffles 24, and a rear limit baffle 71 extending rightward is fixed to the rear of the left support plate 70. The rear limit baffle 71 is located on the left side behind the rear circular baffle 24;

[0036] A guide reinforcing plate 111 is fixed on the right side wall of the fixed side plate 11 on the right side. The top surface of the guide reinforcing plate 111 is an oblique guide wall surface, which faces the left side between the two circular baffles 24.

[0037] A plurality of front and rear corresponding fixing seats 72 are fixed on the right side wall of the left support plate 70, a plurality of guide sleeves 73 are fixed on the right side wall of the fixing seat 72, a limiting anti-collision plate 74 is located on the right side of the fixing seat 72, a transverse guide rod 75 is fixed on the left side wall of the limiting anti-collision plate 74, the transverse guide rod 75 is inserted in the corresponding guide sleeve 73, a guide block 751 is fixed on the left end top surface of the transverse guide rod 75, the guide block 751 is inserted in the transverse guide groove formed in the middle part of the top surface of the guide sleeve 73, a second buffer spring 76 is inserted in the guide sleeve 73, one end of the second buffer spring 76 forces the right side wall of the fixing seat 72, the other end of the second buffer spring 76 forces the left side wall of the limiting anti-collision plate 74, and an elastic protective layer 77 is fixed on the right side wall of the limiting anti-collision plate 74.

[0038] The upper horizontal plate 78 is fixed to the top surface of the left support plate 70 and the rear limit baffle plate 71, and the right end of the upper horizontal plate 78 is movably connected to the arc baffle plate 79 through a hinge shaft, and one end of a plurality of third buffer springs 791 is fixed to the left wall of the arc baffle plate 79, and the other ends of all the third buffer springs 791 are fixed to the right wall of the support frame fixed on the top surface of the upper horizontal plate 78. The arc baffle plate 79 is close to the outer side wall of the left and upper parts of all the rotating disks 22. It can block the conveyed aluminum rods and prevent them from rolling out of the rotating disk 22.

[0039] A right connecting beam is fixed to the top surface of the right ends of the two side fixing plates of each material guide rack 40, and a proximity switch is fixed to the bottom surface of the right connecting beam.

[0040] In this embodiment, all electrical devices and electrical components are electrically connected to the control host through electrical connection lines, and their operation is controlled by the control host.

[0041] When the present embodiment is in use, the aluminum bars to be processed are first manually placed in the guide rack 40 whose discharge port is blocked by the front blocking rack 50 or the rear blocking rack 60, or the right end of the guide rack 40 may be facing the outlet of the output rack for cutting aluminum bars, so as to realize automatic material connection. When the proximity switch senses the aluminum bars for a long time (generally about 5 seconds), it indicates that the guide rack 40 is full of materials. At this time, the control host needs the output rack for cutting aluminum bars corresponding to the controller to stop conveying. At this time, the control host controls the movement servo motor 33 to operate, so that the two guide racks 40 move, and the discharge port of the guide rack 40 filled with materials is facing the right side between the two circular baffles 24. At this time, the other guide rack 40 is blocked by the front blocking rack 50 or the rear blocking rack 60. At this time, the guide rack 40 here can be manually loaded, or it can be facing the outlet of another output rack for cutting aluminum bars to realize material connection.

[0042] At this time, the rotary servo motor 26 runs, causing the rotating shaft 21 to rotate, causing the second proximity switch 4 to sense the side sensing block 3 at the bottom, and the rotary servo motor 26 stops running. At this time, the installation slot 23 on the right is facing the discharge port of the guide rack 40. Since all the transmission rollers 41 on the guide rack 40 are arranged obliquely, at this time, the aluminum rod at the far left end will be transported to the left and fall into all the installation slots 23 on the right side and be blocked by the two circular baffles 24. Among them, the aluminum rod at the far left end will be pressed against the bottom surface of the elastic block 46 above, reducing its rolling speed and achieving a certain buffering effect.

[0043] Then, the rotating servo motor 26 continues to run, and the incoming aluminum rod is conveyed counterclockwise. When the subsequent installation slot 23 faces the discharge port of the guide rack 40, the second aluminum rod will enter the corresponding installation slot 23, and the materials are fed in this way in sequence; generally, the rotation time is controlled by the host controller, that is, after not rotating 90°, that is, after one installation slot 23 moves to a certain position, it is generally 10 to 20 seconds, and then, the rotating servo motor 26 continues to run and rotate so that the subsequent installation slot 23 faces the discharge port of the guide rack 40.

[0044] During the conveying process, when the aluminum rod reaches the left side, it will fall onto the corresponding conveying rollers 12 of the conveying frame 10. When falling, the elastic protective layer 77 will buffer and block the material to prevent it from being broken or crashing other parts, thereby ensuring normal transportation.

[0045] Finally, the aluminum rod that falls onto the conveying roller 12 is operated by the main conveying drive motor 15, so that all the conveying rollers 12 convey the aluminum rod, conveying it forward or backward, and conveying it to the subsequent processing equipment to complete automatic loading, which has a high degree of automation and good effect.

[0046] When the aluminum bars in a guide rack 40 are conveyed, it is controlled by the control host and statistics are made according to the feeding time of each aluminum bar. For example, if there are 10 aluminum bars conveyed and the rotating servo motor 26 is running, the rotation and dwell time of each installation slot 23 is 20 seconds. Then generally after 200 seconds (generally controlled at 220 seconds), the guide rack 40 moves the other guide rack 40 filled with aluminum bars into place by moving the servo motor 33 to continue feeding. At this time, the removed guide rack 40 can continue to feed, thereby realizing continuous conveying, and its conveying effect is good and efficiency is high.

Claims

1. An automatic aluminum rod feeding device, comprising a conveying frame (10) extending forward and backward and a mounting frame (20) fixed on the ground on the right side of the conveying frame (10), characterized in that: A rotating shaft (21) is installed on the upper left portion of the mounting frame (20), and a plurality of rotating disks (22) arranged front and rear are fixed on the rotating shaft (21). The outer side walls of the upper, lower, left and right portions of the rotating disks (22) are all formed with mounting slots (23), and the mounting slots (23) on the same side of all the rotating disks (22) are aligned front and rear, and the mounting slots (23) correspond to the conveying frame (10); Circular baffles (24) are fixed on the front and rear outer side walls of the rotating shaft (21), all the rotating disks (22) are located between the two circular baffles (24), a forward and backward moving mechanism (30) is installed on the top surface of the top plate of the mounting fixing frame (20) on the right side of the rotating disk (22), and two material guide frames (40) are installed on the forward and backward moving mechanism (30), wherein the material outlet at the left end of one of the material guide frames (40) faces all the mounting slots (23) on the right side; The front-to-back moving mechanism (30) comprises a front and rear fixing plate (31) fixed to the right part of the top plate of the mounting fixing frame (20); two ends of a moving screw (32) extending front and back are movably connected to the two fixing plates (31) via bearings; a moving servo motor (33) is fixed to the outer wall of one of the fixing plates (31); the moving servo motor (33) drives the moving screw (32) to rotate; two moving blocks (34) are screwed to the moving screw (31); and the top surfaces of the moving blocks (34) are fixed to the bottom plates of the corresponding material guide frames (40); A front blocking frame (50) and a rear blocking frame (60) are fixed on the top surfaces of the top plates of the front and rear mounting frames (20) of the two circular baffles (24), and a material blocking plate (51) extending forward and backward is fixed on the right sides of the front blocking frame (50) and the rear blocking frame (60), the front material blocking plate (51) blocks the material discharge port of the front material guide frame (40), and the rear material blocking plate (51) corresponds to the material discharge port of the rear material guide frame (40); A left support plate (70) is fixed to the left side of the fixed side plate (11) at the left side of the top plate of the main frame facing the two circular baffles (24), and a rear limit baffle (71) extending rightward is fixed to the rear of the left support plate (70), and the rear limit baffle (71) is located on the left side behind the rear circular baffle (24); A plurality of front and rear corresponding fixing seats (72) are fixed on the right side wall of the left support plate (70), a plurality of guide sleeves (73) are fixed on the right side wall of the fixing seat (72), a limiting anti-collision plate (74) is located on the right side of the fixing seat (72), a transverse guide rod (75) is fixed on the left side wall of the limiting anti-collision plate (74), the transverse guide rod (75) is inserted into the corresponding guide sleeve (73), a guide block (751) is fixed on the top surface of the left end of the transverse guide rod (75), the guide block (751) is inserted into a transverse guide groove formed in the middle of the top surface of the guide sleeve (73), a second buffer spring (76) is inserted into the guide sleeve (73), one end of the second buffer spring (76) is applied to the right side wall of the fixing seat (72), the other end of the second buffer spring (76) is applied to the left side wall of the limiting anti-collision plate (74), and an elastic protective layer (77) is fixed on the right side wall of the limiting anti-collision plate (74); An upper horizontal plate (78) is fixed to the top surfaces of the left support plate (70) and the rear limit baffle plate (71); the right end of the upper horizontal plate (78) is movably connected to an arc-shaped baffle plate (79) via a bearing; one end of a plurality of third buffer springs (791) is fixed to the left side wall of the arc-shaped baffle plate (79); the other ends of all the third buffer springs (791) are fixed to the right side wall of the support frame fixed to the top surface of the upper horizontal plate 78; the arc-shaped baffle plate (79) is close to the outer side walls of the left and upper parts of all the rotating disks (22).

2. The automatic aluminum bar feeding device according to claim 1 is characterized in that: The front and rear parts of the rotating shaft (21) are movably connected to a connecting seat (25) via bearings; the connecting seat (25) is fixed to the top surface of a top plate of the mounting bracket (20); a rotating servo motor (26) is fixed to the top surface of the rear part of the top plate of the mounting bracket (20); and an output shaft of the rotating servo motor (26) is connected to the rear end of the rotating shaft (21) via a coupling.

3. The automatic aluminum bar feeding device according to claim 1 is characterized in that: The material guide frame (40) comprises a bottom plate, the front and rear parts of the top surface of the bottom plate are both fixed with side fixing plates, the two ends of a plurality of transmission rollers (41) are movably connected to the two side fixing plates via bearings, all the transmission rollers (41) are close to each other on the left and right to form a conveying roller conveyor extending obliquely upward from left to right, and the left end of the conveying roller conveyor is a material discharge port.

4. The automatic aluminum bar feeding device according to claim 1 is characterized in that: Two guide groove bars (1) extending forward and backward are fixed to the top surface of the top plate of the mounting fixing frame (20), and a guide slider (42) is fixed to the bottom surface of the bottom plate of the material guide frame (40). The guide slider (42) is inserted into the guide groove extending forward and backward formed on the top surface of the corresponding guide groove bar (1) and cooperates with the guide groove.

5. The automatic aluminum bar feeding device according to claim 1 is characterized in that: A sensing protrusion (341) is fixed on the right side wall of the moving block (34), a connecting plate is fixed on the middle of the right part of the top plate of the mounting bracket (20), a first proximity switch (2) is fixed on the connecting plate, and the sensing protrusion (341) corresponds to the sensing end of the first proximity switch (2).

6. The automatic aluminum bar feeding device according to claim 1, characterized in that: All the installation slots (23) of the rotating disk (22) are evenly distributed on the outer side wall of the rotating disk (22) with the central axis of the rotating disk (22) as the center.

7. The automatic aluminum bar feeding device according to claim 1 is characterized in that: Side sensing blocks (3) are fixed on the outer side walls of the left, right, upper and lower parts of the circular baffle (24), and the side sensing blocks (3) correspond to the corresponding mounting slots (23) in front and back. A vertical screw-connected through hole is formed on the top plate of the mounting bracket (20), and the second proximity switch (4) is screwed in the vertical screw-connected through hole, and its top end corresponds to the side sensing block (3) at the bottom.

8. The automatic aluminum bar feeding device according to claim 3 is characterized in that: A connecting beam (43) is fixed to the top surface between the left ends of the two side fixing plates of the guide frame (40), and a plurality of vertical through holes are formed in the middle of the connecting beam (43). The screw parts of a plurality of adjusting bolts (44) are inserted into the corresponding vertical through holes. The bottom ends of the screw parts of all the adjusting bolts (44) extend out of the bottom ends of the vertical through holes and are fixed to the top surface of the same pressing plate (45). An elastic block (46) is fixed to the bottom surface of the pressing plate (45). The elastic block (46) The lower part of the right side wall is formed with an oblique guide wall, the right end of which is higher than the left end. The lower part of the screw portion of the adjusting bolt (44) is sleeved with a buffer spring (47), the bottom end of the buffer spring (47) is applied to the top surface of the clamping plate (45), the top end of the buffer spring (47) is applied to the bottom surface of the connecting beam (43), and the screw portion of the adjusting bolt (44) is threaded with an adjusting nut (48), and the bottom surface of the adjusting nut (48) is pressed against the top surface of the connecting beam (43).

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