Three-section chain magnetic roller collecting device for bar finishing area

Abstract

The invention belongs to the technical field of bar finishing area collection, and particularly discloses a bar finishing area three-section-chain magnetic roller collecting device which comprises a PLC and a collecting assembly, the collecting assembly comprises a magnetic roller, an adsorption assembly is arranged in the magnetic roller, discharging assemblies are arranged at the two ends of the magnetic roller, and a plurality of feeding assemblies are arranged on the side edge of the magnetic roller side by side. A plurality of lifting arm assemblies are arranged below the magnetic roller side by side, a collecting tank is arranged below material arms of the lifting arm assemblies, a roller way is arranged below the collecting tank, and all the assemblies are electrically connected with a PLC. According to the three-section-chain magnetic roller collecting device for the bar finishing area, the PLC is used for coordinating operation of all the assemblies, the magnetism of the magnetic roller and lifting of the material arm are controlled, and the problem that in the bar collecting process of an existing three-section-chain collecting arm, the collecting efficiency is high is solved. The problems that due to the fact that the fall of the bars is high, mechanical parts are abraded quickly, and the bars are stacked unevenly and are prone to winding are solved, and the overall technical level and the product quality of the bar finished product collecting link are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of bar finishing area collection technology, specifically to a three-section chain magnetic roller collection device for bar finishing areas. Background Technology

[0002] Three-section chain collecting arms are common facilities and equipment in steel plants. They are mainly used in the bar finishing area to separate each row of steel bars that have passed cold shearing into qualified bars according to the required number of bars of each specification using a three-section chain counting machine or sorting machine. Finally, the bars are collected and bundled, and then sent to a baling machine for packaging via roller conveyors. Currently, the most widely used equipment for three-section chain collecting includes loading and unloading arm switching mechanisms and collecting devices. Working principle: The finished bars of the three-section chain first fall onto the loading arm. After the loading arm rises, it descends to the initial position. After the collection is completed, the unloading arm descends to the lowest position and drops the bars into the collecting trough.

[0003] However, the following deep-seated defects exist: the large height difference at the collection position, exceeding 700mm at times, causes significant impact on the material arm, resulting in rapid wear of the keyway of the synchronous shaft connected to each arm (replacing the shaft requires a 48-hour lead time due to the confined space) and frequent oil leakage problems in the cylinder seal (one cylinder has to be taken offline every month); the bars accumulate at one position on the material arm due to falling at the same location, and when the accumulation height exceeds 10cm, they begin to scatter and cross towards the lower part of the material arm, resulting in loose internal bundles after packaging; large-sized bars are prone to missing steel bars during multiple hoisting operations, and small-sized bars are prone to getting stuck at the bends or having uneven tails, causing the finished bundles to have bent steel ends; during the falling of the bars at the end of the three-segment chain, the two ends cannot fall simultaneously, and the end that falls later is affected by the inertial impact of the falling bars, causing the tail to swing and resulting in cross-entanglement with the adjacent falling bars. Summary of the Invention

[0004] The purpose of this invention is to provide a three-segment chain magnetic roller collecting device for bar finishing area, so as to solve the problems of rapid wear of mechanical parts and uneven stacking and easy entanglement of bars due to the high drop of the bars in the existing three-segment chain collecting arm during the bar collecting process.

[0005] To achieve the above objectives, the basic solution provided by this invention is as follows: a three-section chain magnetic roller collecting device for bar finishing area, comprising a collecting component and a PLC controller. The collecting component includes a magnetic roller, with drive components fixed at both ends of the inner wall of the magnetic roller. A motor is snapped into the drive component, and a bearing seat is bolted to the motor. An adsorption component is provided inside the magnetic roller, and the adsorption component includes a through shaft that passes through the magnetic roller and is snapped into the bearing seat. Several sets of feeding components are arranged side by side on the side of the magnetic roller, and several sets of lifting arm assemblies are arranged side by side below the magnetic roller. Each lifting arm assembly includes a material arm, and a collecting trough is provided below the material arm. A roller conveyor is provided below the collecting trough, and a base is provided below the roller conveyor. Two sets of unloading components are bolted to the base, and the unloading components are fixedly connected to the through shaft. The motor, feeding components, lifting arm assemblies, and unloading components are all electrically connected to the PLC controller.

[0006] The principle of this invention is as follows: The PLC controller starts the feeding assembly and motor. The finished steel moves towards the magnetic roller of the collecting assembly through the feeding assembly. When the steel approaches the magnetic roller, it can be attracted to the wall of the magnetic roller by the adsorption assembly. The motor drives the drive assembly to rotate, which in turn drives the magnetic roller to rotate. When the steel moves directly under the magnetic roller, the PLC controller starts the unloading assembly. The unloading assembly drives the adsorption assembly to rotate, so that the steel directly under the magnetic roller is demagnetized and falls into the material arm of the lifting arm assembly under the action of gravity. Then the unloading assembly drives the adsorption assembly to rotate in the opposite direction to the starting position to start the next steel receiving operation. At the same time, the material arm is lowered a preset distance. This cycle is repeated many times until the whole bundle of steel bars is collected. The material arm is lowered to the bottom of the collecting trough, and the roller conveyor is started to send out the finished steel. The magnetic roller continues to rotate at a low speed to receive steel. When the finished steel is completely removed from the steel unloading area of ​​the three-segment chain, the material arm is raised to the highest position and stopped. Then the steel receiving operation is repeated.

[0007] The beneficial effects of this invention are as follows: by cooperating with the unloading component and the adsorption component, the finished steel is automatically received and unloaded. Combined with the gradual descent of the lifting arm component as the steel is received, the whole bundle of steel bars can be stacked in an orderly manner, avoiding the steel from being scattered. At the same time, the magnetic roller rotates continuously at a low speed to ensure uninterrupted steel receiving, and the roller conveyor realizes the automatic removal of the finished steel. The whole process has a high degree of automation, which greatly improves the efficiency and regularity of finished steel collection and reduces errors and safety hazards caused by manual intervention.

[0008] Option 2, a preferred embodiment of the basic option, features a hollow cylinder with openings at both ends as the magnetic roller. The drive assembly includes an internal gear, the outer wall of which is fixed to the inner wall of the magnetic roller. A ring is fixed to the side of the internal gear, and a hollow shaft is fixed to the ring. The inner diameter of the hollow shaft is equal to that of the ring, and its end engages with a bearing seat. The inner diameter of the hollow shaft is larger than the diameter of the through shaft. An external gear meshes with the internal gear and engages with a motor. A full-level material switch is installed on the magnetic roller and is electrically connected to a PLC controller. This design features a compact meshing structure, reducing the space occupied by the device. The large tooth contact area reduces wear, improving transmission efficiency and component lifespan. The full-level material switch monitors the material level in real time, preventing overflow or idling and ensuring operational safety and continuity.

[0009] Option 3, a preferred embodiment of the basic option, involves several supports evenly fixed on the through shaft, with permanent magnets fixed to the ends of the supports. A gap is provided between the outer wall of the permanent magnet and the inner wall of the magnetic roller. The permanent magnets are evenly arranged through the supports, ensuring a stable magnetic field and uniform adsorption effect.

[0010] Option 4, which is a preferred option of the basic option, includes a chain 1 that meshes with two sprockets 1 arranged side by side, with the sprockets 1 arranged perpendicular to the magnetic roller.

[0011] Option 5, a preferred embodiment of the basic option, describes a lifting arm assembly comprising a chain and a track. The chain engages with three sprockets arranged in a triangular shape. The lowest sprocket is connected to a worm gear motor, which is electrically connected to a PLC controller. Both ends of the chain are hinged to the upper and lower ends of the lifting arm. Rollers are installed within the track, and the lifting arm is bolted to these rollers. This triangular arrangement of sprockets and chain drive, combined with the worm gear motor driving the sprockets, enables smooth lifting and precise positioning of the lifting arm. The lifting arm's interaction with the track via rollers results in low frictional resistance and smooth operation, effectively preventing jamming.

[0012] Option 6, a preferred option of the basic scheme, involves two support columns fixed to the base, with the motor bolted to these columns. A photoelectric beam switch is installed inside the collection trough, electrically connected to a PLC controller. The photoelectric beam switch can monitor the position or accumulation status of the steel in the trough in real time, promptly providing full or low material signals to achieve automated start / stop and unloading control, preventing overflow or idling, and improving the automation level and operational reliability of the collection operation.

[0013] Option 7, a preferred embodiment of the basic option, includes a cylinder containing a piston rod. A connecting rod is hinged to the end of the piston rod and fixed to the through shaft. This structure, where the cylinder drives the connecting rod, which in turn drives the through shaft to rotate, allows for precise control of the through shaft's rotation angle. This enables rapid demagnetization and reset of the magnetic roller in designated areas, ensuring the timeliness and accuracy of the unloading action. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a three-section chain magnetic roller collecting device in the bar finishing area of ​​the present invention; Figure 2 This is a front view of a three-section chain magnetic roller collecting device for the bar finishing zone according to the present invention; Figure 3 This is a right-side view of a three-section chain magnetic roller collecting device for the bar finishing zone of the present invention; Figure 4 This is a top view of the magnetic roller collecting assembly in a three-segment chain magnetic roller collecting device for bar finishing area according to the present invention; Figure 5 yes Figure 4 Sectional view at point AA; Figure 6 This is a schematic diagram of the installation between the through shaft, permanent magnet support, and permanent magnet in a three-segment chain magnetic roller collecting device for bar finishing area according to the present invention. Detailed Implementation

[0015] The present invention will be further described in detail below through specific embodiments: The reference numerals in the accompanying drawings of the instruction manual include: 1. Collection assembly, 11. Magnetic roller, 12. Drive assembly, 121. Internal gear, 122. External gear, 123. Hollow shaft, 13. Motor, 14. Bearing seat, 2. Feeding assembly, 21. Chain one, 22. Sprocket one, 3. Unloading assembly, 31. Cylinder, 32. Piston rod, 33. Connecting rod, 4. Lifting arm assembly, 41. Chain two, 42. Sprocket two, 43. Material arm, 44. Track, 45. Roller, 5. Base, 51. Roller conveyor, 52. Collection trough, 53. Support column, 6. Adsorption assembly, 61. Through shaft, 62. Bracket, 63. Permanent magnet.

[0016] Example like Figure 1 and Figure 6As shown: A three-section chain magnetic roller collecting device for a bar finishing area includes a PLC controller and a base 5. A roller conveyor 51 is located above the base 5, and a collecting trough 52 is located on the roller conveyor 51. A photoelectric photoelectric switch is installed inside the collecting trough 52 and is electrically connected to the PLC controller. Two support columns 53 are located at both ends of the collecting trough 52 and are fixed to the base 5. A motor 13 is bolted to the support columns 53. A magnetic roller 11 of the collecting assembly 1 is located above the collecting trough 52. A full-level material switch is installed on the magnetic roller 11 and is electrically connected to the PLC controller. Both ends of the inner wall of the magnetic roller 11 are fixedly provided with driving components 12. The driving components 12 include an internal gear 121, the outer wall of which is fixedly connected to the inner wall of the magnetic roller 11. A ring is fixedly connected to the side of the internal gear 121, and a hollow shaft 123 is fixedly connected to the ring. An external gear 122 meshes with the internal gear 121. The external gear 122 is engaged with a motor 13. A bearing seat 14 is bolted to the motor 13. The end of the hollow shaft 123 is engaged with the bearing seat 14. An adsorption component 6 is provided inside the magnetic roller 11. The through shaft 61 of the adsorption component 6 passes through the magnetic roller 11 and the bearing seat 14. A series of brackets 62 are evenly fixed on the through shaft 61, and permanent magnets 63 are fixed at the ends of the brackets 62. Two cylinders 31 with unloading components 3 are bolted to the base 5. A connecting rod 33 is hinged to the end of the piston rod 32 of the cylinder 31, and the other end of the connecting rod 33 is fixed to the through shaft 61. Nine sets of feeding components 2 and nine sets of lifting arm components 4 are arranged side-by-side on the side of the magnetic roller 11, with the feeding components 2 and lifting arm components 4 interleaved. The feeding component 2 includes a chain 21 and two sprockets 22. The chain 21 meshes with the two sprockets 22 arranged side-by-side. The sprockets 22 are equipped with… The lifting arm assembly 4 is perpendicular to the magnetic roller 11. The lifting arm assembly 4 includes a chain 41 and three sprockets 42. The three sprockets 42 are installed in a triangle. The sprocket 42 closest to the magnetic roller 11 is coaxial with the sprocket 22 closest to the magnetic roller 11. The lowest sprocket 42 is connected to a worm gear motor. The worm gear motor is electrically connected to the PLC controller. The two ends of the chain 41 are respectively hinged to the upper and lower ends of the material arm 43. The main body of the material arm 43 is located directly below the magnetic roller 11. The right end of the material arm 43 is bolted to the roller 45 in the track 44. The track 44 is vertically bolted to the base 5.

[0017] The implementation method of this embodiment is as follows: First, the chain 21 and motor 13 are started by the PLC controller. After the chain 21 is started, it drives the finished steel to move towards the magnetic roller 11. The motor 13 drives the external gear 122 and the internal gear 121 meshing with it to rotate, which in turn drives the magnetic roller 11 to rotate around the through shaft 61. The finished steel on the chain 21 is attracted to the surface of the magnetic roller 11 in turn by the magnetic force of the permanent magnet 63 inside the magnetic roller 11 until the full material switch on the magnetic roller 11 senses the steel bars. At this time, the PLC controller causes the piston rod 32 of the cylinder 31 to extend quickly, driving the permanent magnet 63 to rotate until the lower half of the magnetic roller 11 is in a non-magnetic state. The bars fall one by one into the material arm 43 of the lifting arm assembly 4 under the action of gravity.

[0018] At the same time, the sprocket 42 near the base 5 rotates at a certain angle under the drive of the worm gear motor, thereby driving the chain 41 to move the material arm 43 down within the track 44 to a preset height value. Subsequently, the PLC controller drives the piston rod 32 to retract, and the permanent magnet 63 in the magnetic roller 11 returns to the initial position. The above steel picking, steel transporting and steel unloading actions are repeated until the entire bundle of steel bars is collected.

[0019] When the entire bundle of steel bars is collected, the material arm 43 descends into the collection trough 52. At this time, the roller conveyor 51 starts to send out the finished steel. The magnetic roller 11 continues to rotate at a low speed to receive the steel. When the finished bar is completely removed from the steel unloading area of ​​the three-section chain, the photoelectric photoelectric switch in the collection trough 52 sends a signal to make the material arm 43 rise to the highest position and stop. Then the steel receiving operation is repeated.

[0020] The above descriptions are merely embodiments of the present invention, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A three-section chain magnetic roller collecting device for the bar finishing zone, characterized in that, The system includes a collection component (1) and a PLC controller. The collection component (1) includes a magnetic roller (11). Both ends of the inner wall of the magnetic roller (11) are fixed with drive components (12). The drive components (12) are connected to a motor (13). A bearing seat (14) is bolted to the motor (13). An adsorption component (6) is provided inside the magnetic roller (11). The adsorption component (6) includes a through shaft (61). The through shaft (61) passes through the magnetic roller (11) and is connected to the bearing seat (14). Several sets of feeding devices are arranged side by side on the side of the magnetic roller (11). The material assembly (2) has several sets of lifting arm assemblies (4) arranged side by side below the magnetic roller (11). The lifting arm assembly (4) includes a material arm (43). A collection trough (52) is provided below the material arm (43). A roller conveyor (51) is provided below the collection trough (52). A base (5) is provided below the roller conveyor (51). Two sets of unloading assemblies (3) are bolted to the base (5). The unloading assemblies (3) are fixedly connected to the through shaft (61). The motor (13), the feeding assembly (2), the lifting arm assembly (4) and the unloading assembly (3) are all electrically connected to the PLC controller.

2. The three-section chain magnetic roller collecting device for the bar finishing zone according to claim 1, characterized in that, The magnetic roller (11) is a hollow cylinder with open ends. The drive assembly (12) includes an internal gear (121). The outer wall of the internal gear (121) is fixed to the inner wall of the magnetic roller (11). A ring is fixed to the side of the internal gear (121). A hollow shaft (123) is fixed to the ring. The inner diameter of the hollow shaft (123) is equal to the inner diameter of the ring. The end of the hollow shaft (123) is engaged with the bearing seat (14). The inner diameter of the hollow shaft (123) is larger than the diameter of the through shaft (61). An external gear (122) meshes inside the internal gear (121). The external gear (122) is engaged with the motor (13). A full-level material switch is provided on the magnetic roller (11). The full-level material switch is electrically connected to the PLC controller.

3. The three-section chain magnetic roller collecting device for the bar finishing zone according to claim 1, characterized in that, A plurality of supports (62) are uniformly fixed on the through shaft (61), and a permanent magnet (63) is fixed to the end of the support (62). A gap is provided between the outer wall surface of the permanent magnet (63) and the inner wall surface of the magnetic roller (11).

4. The three-section chain magnetic roller collecting device for the bar finishing zone according to claim 1, characterized in that, The feeding assembly (2) includes a chain (21) that meshes with two sprockets (22) arranged side by side.

5. The three-section chain magnetic roller collecting device for the bar finishing zone according to claim 1, characterized in that, The lifting arm assembly (4) includes a chain (41) and a track (44). The chain (41) is engaged with three sprockets (42). The sprockets (42) are connected to a worm gear motor, which is electrically connected to a PLC controller. The two ends of the chain (41) are respectively hinged to the upper and lower ends of the lifting arm (43). The track (44) is provided with rollers (45), and the lifting arm (43) is bolted to the rollers (45).

6. The three-section chain magnetic roller collecting device for the bar finishing zone according to claim 1, characterized in that, Two support columns (53) are fixed on the base (5), the motor (13) is bolted to the support columns (53), and a photoelectric photoelectric switch is provided in the collection tank (52). The photoelectric photoelectric switch is electrically connected to the PLC controller.

7. The three-section chain magnetic roller collecting device for the bar finishing zone according to claim 1, characterized in that, The unloading assembly (3) includes a cylinder (31), a piston rod (32) is provided inside the cylinder (31), and a connecting rod (33) is hinged to the end of the piston rod (32), and the connecting rod (33) is fixed to the through shaft (61).

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