Steel taking device and steel taking and connecting system

Abstract

The present invention discloses a steel taking device and a steel taking and connecting system. It comprises a closed-loop transfer and connecting steel system and a steel taking system; the closed-loop transfer and connecting steel system comprises a plurality of groups of closed-loop chain units arranged at intervals; wherein each group of closed-loop chain units comprises: a closed-loop chain bracket, an upper sprocket is mounted on the bracket, a tensioning frame is mounted on the bracket below the upper sprocket, and a lower sprocket is mounted on the tensioning frame; a closed-loop chain is arranged on the upper sprocket and the lower sprocket; two groups of steel connecting arms are fixed at equal intervals on the closed-loop chain; the upper sprockets in each group of closed-loop chain units are coaxially arranged; a steel connecting transmission shaft is passed through the shaft hole of the upper sprocket and is connected to the sprocket for transmission; a steel connecting motor is connected to the steel connecting transmission shaft for transmission. The present invention can not only effectively solve the impact of rolled pieces on the roller, but also has high efficiency, stable structure, and simple and convenient equipment maintenance.

Description

Technical Field

[0001] The invention relates to a steel taking device and a steel taking and connecting system. Background Art

[0002] In a bar steel rolling production line, bars need to be collected after rolling. The bars are counted before being collected to prepare for subsequent collection and bundling. In the past, chain conveying was used, and the weight of the rolled pieces was used to perform free fall motion. Although this method can also meet the collection and bundling functions, it will cause the rolled pieces to impact the collection and transportation rollers. To address this problem, the present invention proposes a steel-taking device for collecting bars. Summary of the Invention

[0003] In view of the above problems, the present invention proposes a steel taking device and a steel taking and connecting system that are simple and convenient to maintain.

[0004] To achieve the above-mentioned purpose, the steel taking and connecting system of the present invention comprises a closed-loop transfer and connecting steel system and a steel taking system; the closed-loop transfer and connecting steel system comprises a plurality of groups of closed-loop chain units arranged at intervals; wherein,

[0005] Each closed-loop chain unit comprises: a closed-loop chain bracket, an upper sprocket is mounted on the bracket, a tensioning frame is mounted on the bracket below the upper sprocket, and a lower sprocket is mounted on the tensioning frame; a closed-loop chain is provided on the upper and lower sprockets; two sets of connecting steel arms are fixed at equal intervals on the closed-loop chain;

[0006] The upper sprockets in each group of closed-loop chain units are coaxially arranged;

[0007] The steel transmission shaft is passed through the shaft hole of the upper sprocket and is connected to the sprocket for transmission;

[0008] The steel connecting motor is in driving connection with the steel connecting transmission shaft.

[0009] Furthermore, the steel taking system comprises a plurality of sets of steel taking devices arranged at intervals, wherein the steel taking devices and the closed-loop chain units are arranged alternately;

[0010] Each group of the steel taking devices includes a steel taking bracket, a fixed slide is installed on the steel taking bracket, and a steel taking arm is slidably arranged in the fixed slide; a reciprocating drive device is used to drive the steel taking arm to reciprocate along the slide.

[0011] Furthermore, the reciprocating drive device includes:

[0012] Connecting rod, take the rear end of the steel arm and hinge it to one end of the connecting rod;

[0013] The bearing seat is installed on the steel bracket.

[0014] Take the steel drive shaft and set it in the bearing seat;

[0015] A lever, the fulcrum of which is mounted on the steel transmission shaft, and the other end of the connecting rod is hinged to the free end of the driven rod of the lever;

[0016] A steel motor is provided, wherein a crank is mounted on the output shaft of the steel motor, the other end of the crank is hinged to one end of a driving rod, and the other end of the driving rod is hinged to the free end of the active rod of the lever;

[0017] A lifting device, the steel-taking motor is installed on the lifting device.

[0018] Furthermore, the lifting device includes a tail swing shaft hydraulic cylinder, a guide seat, a guide rod, and a base; two groups of guide rods are arranged along the center line of the platform roller and are fixed on the base respectively. The base is fixed on the civil foundation. The steel motor is fixed on the guide seat. The wire seat can move along the two groups of guide rods. The flat head of the tail swing shaft hydraulic cylinder is hinged to the lower part of the guide seat, and the tail of the tail swing shaft hydraulic cylinder is hinged to the base.

[0019] Furthermore, the steel transportation process of the system is as follows:

[0020] 1) The steel-taking arm extends forward and waits at the steel-taking position. When the transport chain transports the rolled piece to the end of the chain, the rolled piece will move horizontally at a certain initial velocity and its own weight, and fall onto the steel-taking arm. At the same time, the steel-taking arm will move backward;

[0021] 2) When the rolled piece touches the baffle on one side of the transport roller, it is blocked by the baffle and falls onto a set of steel receiving arms below the steel taking arm. At the same time, the steel taking arm retreats to the unloading position.

[0022] 3) The steel taking motor rotates and drives the steel taking arm to move, so that the steel taking arm returns from the steel unloading position to the steel taking position again;

[0023] At the same time, the steel receiving motor rotates to drive the upper sprocket to rotate counterclockwise, and the upper sprocket drives the meshing chain to rotate counterclockwise. The steel receiving arm at the steel receiving position carries the rolled piece downward, and the other set of steel receiving arms moves upward. When the steel receiving arm carrying the rolled piece moves to the roller surface of the platform transport roller, the rolled piece just falls on the roller surface of the platform transport roller due to the obstruction of the roller surface.

[0024] 4) The transport rollers on the platform rotate to remove the rolled product from the roller surface. At the same time, the two sets of steel receiving arms continue to rotate, allowing the other set of steel taking arms to reach the steel receiving position. This cycle repeats, achieving a cycle of taking, receiving, and transporting steel.

[0025] Furthermore, the steel taking process of the system is as follows:

[0026] 1) First, fully extend the piston rod of the hydraulic cylinder driving the tail swing shaft, so that the steel taking motor is in the highest position. The driving motor rotates so that the crank is in the horizontal position. At this time, the driving rod, active rod, driven rod, and connecting rod are all in the minimum limit position. At the same time, the steel taking arm is just in the unloading position;

[0027] 2) The steel picking motor rotates, the motor drives the crank to rotate, the crank rotation drives the driving rod to rotate, the driving rod drives the active rod to rotate, the active rod drives the driven rod on the articulated transmission shaft to move, thereby driving multiple groups of steel picking arms to move, and the multiple groups of steel picking arms respectively slide on the corresponding fixed slide rails. When the crank rotates to a predetermined angle, the steel picking arm reaches the card point position;

[0028] 3) Drive the tail swing shaft hydraulic cylinder to retract, thereby driving the steel taking motor downward; when the steel taking motor rotates, the crank rotates to a predetermined angle, causing the steel taking arm to reach the steel taking position and wait for steel taking;

[0029] 4) After the steel is taken out, the steel taking motor rotates, and the crank rotates to drive the steel taking arm to move toward the steel unloading position; when the steel taking arm runs to the stuck point, the piston rod of the tail swing shaft hydraulic cylinder is driven to extend, so that the steel taking arm continues to move toward the steel unloading position;

[0030] 5) When the rolled piece touches the baffle on one side of the platform transport roller, the rolled piece on the steel taking arm will all fall onto the steel receiving arm due to the obstruction of the rolled piece; this cycle can realize the steel taking and steel receiving sequence.

[0031] To achieve the above-mentioned purpose, the steel taking device of the present invention includes a steel taking bracket, a fixed slide is installed on the steel taking bracket, and a steel taking arm is slidably arranged in the fixed slide; and a reciprocating drive device is used to drive the steel taking arm to reciprocate along the slide.

[0032] Furthermore, the reciprocating drive device includes:

[0033] Connecting rod, take the rear end of the steel arm and hinge it to one end of the connecting rod;

[0034] The bearing seat is installed on the steel bracket.

[0035] Take the steel drive shaft and set it in the bearing seat;

[0036] A lever, the fulcrum of which is mounted on the steel transmission shaft, and the other end of the connecting rod is hinged to the free end of the driven rod of the lever;

[0037] A steel motor is provided, wherein a crank is mounted on the output shaft of the steel motor, the other end of the crank is hinged to one end of a driving rod, and the other end of the driving rod is hinged to the free end of the active rod of the lever;

[0038] A lifting device, the steel-taking motor is installed on the lifting device.

[0039] Furthermore, the lifting device includes a tail swing shaft hydraulic cylinder, a guide seat, a guide rod, and a base; two groups of guide rods are arranged along the center line of the platform roller and are fixed on the base respectively. The base is fixed on the civil foundation. The steel motor is fixed on the guide seat. The wire seat can move along the two groups of guide rods. The flat head of the tail swing shaft hydraulic cylinder is hinged to the lower part of the guide seat, and the tail of the tail swing shaft hydraulic cylinder is hinged to the base.

[0040] Furthermore, the steel taking process of the steel taking device is as follows:

[0041] 1) First, fully extend the piston rod of the hydraulic cylinder driving the tail swing shaft, so that the steel taking motor is in the highest position. The driving motor rotates so that the crank is in the horizontal position. At this time, the driving rod, active rod, driven rod, and connecting rod are all in the minimum limit position. At the same time, the steel taking arm is just in the unloading position;

[0042] 2) The steel picking motor rotates, the motor drives the crank to rotate, the crank rotation drives the driving rod to rotate, the driving rod drives the active rod to rotate, the active rod drives the driven rod on the articulated transmission shaft to move, thereby driving multiple groups of steel picking arms to move, and the multiple groups of steel picking arms respectively slide on the corresponding fixed slide rails. When the crank rotates to a predetermined angle, the steel picking arm reaches the card point position;

[0043] 3) Drive the tail swing shaft hydraulic cylinder to retract, thereby driving the steel taking motor downward; when the steel taking motor rotates, the crank rotates to a predetermined angle, causing the steel taking arm to reach the steel taking position and wait for steel taking;

[0044] 4) After the steel is taken out, the steel taking motor rotates, and the crank rotates to drive the steel taking arm to move toward the steel unloading position; when the steel taking arm runs to the stuck point, the piston rod of the tail swing shaft hydraulic cylinder is driven to extend, so that the steel taking arm continues to move toward the steel unloading position;

[0045] 5) When the rolled piece touches the baffle on one side of the platform transport roller, the rolled piece on the steel taking arm will all fall onto the steel receiving arm due to the obstruction of the rolled piece; this cycle can realize the steel taking and steel receiving sequence.

[0046] The steel taking device of the present invention utilizes a reciprocating steel taking device to drive the steel taking arm to achieve steel taking; it has a compact structure and low cost, and then utilizes a steel connecting system to bring the bars unloaded by the steel taking arm down to the conveyor belt to complete the steel connecting; it can not only better solve the impact of the rolled piece on the roller, but also has high efficiency, stable structure and simple and convenient equipment maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is a front view of a steel taking and connecting system of the present invention.

[0048] Figure 2 yes Figure 1 Top view.

[0049] Figure 3 yes Figure 1 Schematic diagram of steel removal using the central steel removal arm.

[0050] Figure 4 It is a structural schematic diagram of the transport chain part and the steel taking and connecting system in the present invention.

[0051] Figure 5 It is a schematic diagram of the steel connection part in the present invention.

[0052] Figure 6 for Figure 1 side view.

[0053] Figure 7 for Figure 6 Schematic top view of .

[0054] Figure 8 Schematic diagram of the steel arm position.

[0055] Figure 9 This is a schematic diagram of the steel arm drive and lifting device structure.

[0056] Figure 10 Take the dynamic diagram of the steel arm.

[0057] Figure 11 for Figure 10 A simple diagram of .

[0058] Figure 12 This is a three-dimensional schematic diagram of the steel arm part.

[0059] Figure 13 Schematic diagram of the lifting device.

[0060] Figure 14 This is a three-dimensional schematic diagram of the steel motor part.

[0061] Figure 15 This is a three-dimensional schematic diagram of the steel arm and driving part. DETAILED DESCRIPTION

[0062] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0063] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0064] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0065] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediary, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0066] The present invention will be further described below with reference to the accompanying drawings.

[0067] Example 1

[0068] like Figure 1-5 As shown, this embodiment provides a steel taking and connecting system, including a closed-loop transfer and connecting steel system and a steel taking system.

[0069] Example 2

[0070] Based on the above embodiments, the closed-loop transfer link steel system includes a transmission system, a closed-loop chain system, and a support.

[0071] The transmission system includes a drive motor 11, a base 12, a coupling 19, a sprocket, a bearing seat 14, a support 17, and a transmission shaft 13. The steel connecting motor is fixed on the base, which is fixed on the civil engineering foundation. The output shaft of the steel connecting motor is connected to one end of the coupling, and the other end of the coupling is connected to one end of the transmission shaft. 10 groups of bearing seats are arranged along the center line of the platform conveyor roller. The hinge centers of the 10 groups of bearing seats are on the same center line. 10 groups of supports are arranged along the center line of the platform conveyor roller. Each group of bearing seats is fixed to the corresponding support. The transmission shaft is hinged to the 10 groups of bearing seats. 10 groups of sprockets are arranged along the center line of the platform conveyor roller. The 10 groups of sprockets are hinged to the transmission shaft. The sprockets of each group are located on one side of each corresponding group of bearing seats.

[0072] Example 3

[0073] Based on the above embodiment, the closed-loop chain system includes sprockets, a closed-loop chain 15, a steel connecting arm 16, and a tensioning frame 18. The closed-loop chain system consists of 10 closed-loop chain units, arranged along the centerline of the platform conveyor roller. Each closed-loop chain unit has a completely identical structure. The connection relationship is now explained using the structural composition of a group of closed-loop chain units. Ten upper sprockets are arranged along the centerline of the platform conveyor roller. The 10 sprockets are hinged to the drive shaft, and each upper sprocket is located on one side of each corresponding bearing seat in the drive system. Ten tensioning frames are arranged along the centerline of the platform conveyor roller. Each tensioning frame is fixed to a corresponding support. Each tensioning frame is hinged to a lower sprocket. Each chain 15 is meshed with the upper and lower sprockets to form a closed-loop chain. Each closed-loop chain is fixed with two steel connecting arms 16, located at position A (i.e., the steel connecting position) and position B, respectively. Positions A and B are in an antisymmetric relationship.

[0074] Example 4

[0075] Based on the above embodiment, the steel taking system includes a steel taking device, a driving system, and a lifting system.

[0076] Example 5

[0077] On the basis of the above embodiment, the steel taking device includes a steel taking arm 21, a fixed slide 22, a support, a connecting rod 23, a driven rod 24, an active rod 25, a bearing seat, and a transmission shaft 28. The steel taking system consists of 10 groups of steel taking units. The steel taking arm, fixed slide, support, connecting rod, driven rod, and bearing seat are arranged in 10 groups along the center line of the platform roller. The structural form of each group of steel taking units is exactly the same. The connection relationship is explained by one group. One end of the steel taking arm is hinged to one end of the connecting rod, and the steel taking arm can slide freely in the slide. The other end of the connecting rod is hinged to one end of the driven rod, and the other end of the driven rod is hinged to the transmission shaft. The bearing seats are arranged in 10 groups along the center line of the platform roller. The hinge centers of the bearing seats are on the same center line. The transmission shaft is hinged to the transmission shaft. The brackets are arranged in 10 groups along the center line of the platform roller. Each group of bearing seats is fixed to the corresponding bracket. Each group of brackets is fixed on the civil engineering foundation.

[0078] Example 6

[0079] Based on the above embodiment, the drive system includes a steel motor 210 (double-output shaft form), a crank 29, a drive rod 26, and an active rod 25. The crank, drive rod, and active rod are arranged in two groups along the center line of the platform roller, respectively located on both sides of the drive motor. The connection relationship is explained using the structure on one side. One end of the crank is hinged to one side output shaft of the motor, the other end of the crank is hinged to one end of the drive rod, the other end of the drive rod is hinged to one end of the active rod, and the other end of the active rod is hinged to the transmission shaft. The crank, drive rod, and active rod are not in the same plane. The connection method on the other side of the motor is the same as above.

[0080] Example 7

[0081] Based on the above embodiment, the lifting system includes a tail swing axis hydraulic cylinder 212, a guide base 211, guide rods 213, and a base 214. Two sets of guide rods are arranged along the centerline of the platform roller, and are fixed to the base. The base is fixed to the civil foundation. The motor is fixed to the guide base. The wire base can move along the two sets of guide rods. The flat head of the tail swing axis hydraulic cylinder is hinged to the lower part of the guide base, and the tail of the tail swing axis hydraulic cylinder is hinged to the base.

[0082] Example 8

[0083] On the basis of the above embodiment, the steel taking process is as follows:

[0084] The first step is to fully extend the piston rod of the hydraulic cylinder driving the tail swing shaft so that the motor is in the highest position. The driving motor rotates so that the cranks connected on both sides of the motor are in a horizontal position. At this time, the driving rod, active rod, driven rod, and connecting rod are all in the minimum limit position. At the same time, the steel taking arm is just in the steel unloading position (steel unloading position (steel taking arm position 2)).

[0085] In the second step, the steel retrieval motor rotates, driving the crank. This rotation drives the drive rod, which in turn drives the active drive. This active drive drives the 10 follower rods on the articulated transmission, which in turn move the 10 steel retrieval arms. Each of the 10 steel retrieval arms slides on its corresponding fixed rails. When the crank rotates to a certain angle, the steel retrieval arm reaches the blocking point (blocking point position (steel retrieval arm position 3)). Then, when the steel retrieval motor rotates, the inherent characteristics of the four-bar linkage cause the crank movement to cause the steel retrieval arm to move toward the unloading position (steel retrieval arm position 2). This is not what we want. To ensure that the steel retrieval arm reaches the steel retrieval position (steel retrieval arm position 1) smoothly, we can achieve this by driving the hydraulic cylinder's piston stem to extend and retract. In the third step, the tail swing shaft hydraulic cylinder retracts, so that when the drive motor rotates, the crank rotates to a certain angle, causing the steel retrieval arm to reach the steel retrieval position (steel retrieval arm position 1) and wait for steel to be retrieved. Fourth, when the conveyor chain transports the workpiece to the end of the chain, it experiences a horizontal motion with a certain initial velocity and weight, landing on the pick-up arm. The drive motor then rotates, causing the crank to move the pick-up arm toward the unloading position (pick-up arm position 2), allowing the pick-up arm to sequentially pick up the workpiece. When the workpiece reaches the blocking point (pick-up arm position 3), due to the inherent characteristics of the four-bar linkage, continued crank rotation causes the pick-up arm to move toward the unloading position (pick-up arm position 1), which is undesirable. To ensure smooth drop of the workpiece from the pick-up arm onto the receiving arm, the piston rod of the tail swing shaft hydraulic cylinder is extended, causing the pick-up arm to continue moving toward the unloading position (pick-up arm position 2). Fifth, when the workpiece hits the side plate on the gantry conveyor roller, the workpiece obstructs the pick-up arm, causing it to fall onto the receiving arm. This completes the entire pick-up process. The steel taking and steel receiving sequence can be realized by repeating the process repeatedly.

[0086] Example 9

[0087] Based on the above embodiment, the steel connection and transportation process is as follows: First, the positions of the steel pick-up arm and the steel receiving arm are not in the same plane. In the first step, the steel pick-up arm is positioned at the steel pick-up position (steel pick-up arm position 1) and waits. When the transport chain transports the rolled material to the end of the chain, it will move horizontally with a certain initial velocity and its own weight, and fall onto the steel pick-up arm. At the same time, the steel pick-up arm will move backward. In the second step, when the rolled material hits the baffle on one side of the transport roller, it is blocked by the baffle and falls to a set of steel receiving arms in position A. At the same time, the steel pick-up arm also reaches the unloading position (steel pick-up arm position 2), and the other set of steel receiving arms is in position B. The third step is to drive the motor to rotate and simultaneously drive the steel-taking arm to move, so that the steel-taking arm has the steel-unloading position (steel-taking arm position 2) and returns to the steel-taking position (steel-taking arm position 1). The motor rotation drives the upper sprocket to rotate counterclockwise, and the upper sprocket drives the meshing chain to rotate counterclockwise. The steel-receiving arm at position A moves downward, and the steel-receiving arm at position B moves upward. The steel-receiving arm and the gantry transport roller are not in the same plane. When the steel-receiving arm at position A moves to the roller surface of the gantry transport roller, due to the obstruction of the roller surface, the rolled product just falls on the roller surface of the gantry transport roller. The fourth step is to drive the gantry transport roller to rotate and transport the rolled product on the roller surface. At the same time, the two sets of steel-receiving arms do not stop moving. Through the control of the drive motor encoder, the steel-receiving arm at position A reaches position B, and the steel-receiving arm at position B reaches position A. This cycle can be repeated to achieve the cycle of taking steel, receiving steel, and transporting steel. The present invention can not only effectively solve the impact of the rolled piece on the roller table, but also has high efficiency, stable structure and simple and convenient equipment maintenance.

[0088] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0089] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A steel taking and connecting system, characterized in that: It includes a closed-loop transport link steel system and a steel taking system; the closed-loop transport link steel system includes multiple groups of closed-loop chain units arranged at intervals; wherein, Each closed-loop chain unit comprises: a closed-loop chain bracket, an upper sprocket is mounted on the bracket, a tensioning frame is mounted on the bracket below the upper sprocket, and a lower sprocket is mounted on the tensioning frame; a closed-loop chain is provided on the upper and lower sprockets; two sets of connecting steel arms are fixed at equal intervals on the closed-loop chain; The upper sprockets in each group of closed-loop chain units are coaxially arranged; The steel transmission shaft is passed through the shaft hole of the upper sprocket and is connected to the sprocket for transmission; A steel connecting motor is connected to the steel connecting transmission shaft; The steel taking system comprises a plurality of sets of steel taking devices arranged at intervals, wherein the steel taking devices and the closed-loop chain units are arranged alternately; Each group of the steel taking device comprises a steel taking bracket, a fixed slide is installed on the steel taking bracket, and a steel taking arm is slidably arranged in the fixed slide; a reciprocating drive device is used to drive the steel taking arm to reciprocate along the slide; the reciprocating drive device comprises: Connecting rod, take the rear end of the steel arm and hinge it to one end of the connecting rod; The bearing seat is installed on the steel bracket. Take the steel drive shaft and set it in the bearing seat; A lever, the fulcrum of which is mounted on the steel transmission shaft, and the other end of the connecting rod is hinged to the free end of the driven rod of the lever; A steel motor is provided, wherein a crank is mounted on the output shaft of the steel motor, the other end of the crank is hinged to one end of a driving rod, and the other end of the driving rod is hinged to the free end of the active rod of the lever; A lifting device, wherein the steel-taking motor is installed on the lifting device; The lifting device includes a tail swing shaft hydraulic cylinder, a guide seat, a guide rod, and a base; two groups of guide rods are arranged along the center line of the platform roller and are fixed to the base respectively. The base is fixed to the civil foundation. A steel motor is fixed to the guide seat. The wire seat can move along the two groups of guide rods. The flat head of the tail swing shaft hydraulic cylinder is hinged to the lower part of the guide seat, and the tail of the tail swing shaft hydraulic cylinder is hinged to the base. The steel taking process of the system is as follows: 1) First, fully extend the piston rod of the hydraulic cylinder driving the tail swing shaft, so that the steel taking motor is in the highest position. The driving motor rotates so that the crank is in the horizontal position. At this time, the driving rod, active rod, driven rod, and connecting rod are all in the minimum limit position. At the same time, the steel taking arm is just in the steel unloading position; 2) The steel picking motor rotates, which drives the crank to rotate. The crank rotation drives the driving rod to rotate. The driving rod drives the active rod to rotate. The active rod drives the driven rod on the articulated transmission shaft to move, thereby driving multiple sets of steel picking arms to move. The fixed slide rails corresponding to the multiple sets of steel picking arms slide. When the crank rotates to a predetermined angle, the steel picking arm reaches the card point position. 3) Drive the tail swing shaft hydraulic cylinder to retract, thereby driving the steel picking motor downward; when the steel picking motor rotates, the crank rotates to a predetermined angle, causing the steel picking arm to reach the steel picking position and wait for steel picking; 4) After the steel is taken out, the steel taking motor rotates, and the crank rotates to drive the steel taking arm to move toward the steel unloading position; when the steel taking arm reaches the stuck point, the piston rod of the tail swing shaft hydraulic cylinder is driven to extend, causing the steel taking arm to continue to move toward the steel unloading position; 5) When the rolled piece touches the baffle on one side of the platform transport roller, the rolled piece on the steel taking arm will fall onto the steel receiving arm due to the obstruction of the rolled piece; this cycle can realize the steel taking and steel receiving sequence.

2. The steel taking and connecting system according to claim 1, characterized in that: The steel transportation process of the system is as follows: 1) The steel-taking arm extends forward and waits at the steel-taking position. When the transport chain transports the rolled piece to the end of the chain, the rolled piece will move horizontally at a certain initial velocity and its own weight, and fall onto the steel-taking arm. At the same time, the steel-taking arm will move backward; 2) When the rolled piece touches the baffle on one side of the transport roller, it is blocked by the baffle and falls onto a set of steel receiving arms below the steel taking arm. At the same time, the steel taking arm retreats to the unloading position. 3) The steel taking motor rotates and drives the steel taking arm to move, so that the steel taking arm returns from the steel unloading position to the steel taking position; At the same time, the steel receiving motor rotates to drive the upper sprocket to rotate counterclockwise, and the upper sprocket drives the meshing chain to rotate counterclockwise. The steel receiving arm at the steel receiving position carries the rolled piece downward, and the other set of steel receiving arms moves upward. When the steel receiving arm carrying the rolled piece moves to the roller surface of the platform transport roller, the rolled piece just falls on the roller surface of the platform transport roller due to the obstruction of the roller surface. 4) Drive the gantry transport roller to rotate and transport the rolled products on the roller surface. At the same time, the two sets of steel receiving arms continue to rotate, so that the other set of steel taking arms reaches the steel receiving position. This cycle repeats itself to achieve a cyclic process of taking steel, receiving steel, and transporting steel.

3. A steel taking device, characterized in that: It includes a steel taking bracket, a fixed slide is installed on the steel taking bracket, and a steel taking arm is slidably arranged in the fixed slide; a reciprocating drive device is used to drive the steel taking arm to reciprocate along the slide; The reciprocating drive device comprises: Connecting rod, take the rear end of the steel arm and hinge it to one end of the connecting rod; The bearing seat is installed on the steel bracket. Take the steel drive shaft and set it in the bearing seat; A lever, the fulcrum of which is mounted on the steel transmission shaft, and the other end of the connecting rod is hinged to the free end of the driven rod of the lever; A steel motor is provided, wherein a crank is mounted on the output shaft of the steel motor, the other end of the crank is hinged to one end of a driving rod, and the other end of the driving rod is hinged to the free end of the active rod of the lever; A lifting device, wherein the steel-taking motor is installed on the lifting device; The lifting device includes a tail swing shaft hydraulic cylinder, a guide seat, a guide rod, and a base; two groups of guide rods are arranged along the center line of the platform roller and are fixed to the base respectively. The base is fixed to the civil foundation. A steel motor is fixed to the guide seat. The wire seat can move along the two groups of guide rods. The flat head of the tail swing shaft hydraulic cylinder is hinged to the lower part of the guide seat, and the tail of the tail swing shaft hydraulic cylinder is hinged to the base. The steel taking process of the steel taking device is as follows: 1) First, fully extend the piston rod of the hydraulic cylinder driving the tail swing shaft, so that the steel taking motor is in the highest position. The driving motor rotates so that the crank is in the horizontal position. At this time, the driving rod, active rod, driven rod, and connecting rod are all in the minimum limit position. At the same time, the steel taking arm is just in the steel unloading position; 2) The steel picking motor rotates, which drives the crank to rotate. The crank rotation drives the driving rod to rotate. The driving rod drives the active rod to rotate. The active rod drives the driven rod on the articulated transmission shaft to move, thereby driving multiple sets of steel picking arms to move. The fixed slide rails corresponding to the multiple sets of steel picking arms slide. When the crank rotates to a predetermined angle, the steel picking arm reaches the card point position. 3) Drive the tail swing shaft hydraulic cylinder to retract, thereby driving the steel picking motor downward; when the steel picking motor rotates, the crank rotates to a predetermined angle, causing the steel picking arm to reach the steel picking position and wait for steel picking; 4) After the steel is taken out, the steel taking motor rotates, and the crank rotates to drive the steel taking arm to move toward the steel unloading position; when the steel taking arm reaches the stuck point, the piston rod of the tail swing shaft hydraulic cylinder is driven to extend, causing the steel taking arm to continue to move toward the steel unloading position; 5) When the rolled piece touches the baffle on one side of the platform transport roller, the rolled piece on the steel taking arm will fall onto the steel receiving arm due to the obstruction of the rolled piece; this cycle can realize the steel taking and steel receiving sequence.

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