A bar production line prevents falling material disorder steel system and blanking method

Abstract

This invention discloses a system and method for preventing disordered steel dropping during a bar production line, belonging to the field of steel production technology. Its features include a chain-type steel transfer machine, a steel-shifting device, a flat-support steel transfer machine, and a bundled transport roller conveyor. The chain-type steel transfer machine is used to transport standard-length bars and includes a baffle plate to prevent the rolled pieces from continuing to move forward. The steel-shifting device includes a steel-shifting arm, arranged at the tail of the chain-type steel transfer machine, used to confine the rolled pieces within the arm's picking range. The flat-support steel transfer machine includes a support arm, arranged between the chain-type steel transfer machine and the bundled transport roller conveyor, used to transport the standard-length bars from the chain-type steel transfer machine to the bundled transport roller conveyor. This invention effectively solves the problem of disordered steel dropping during the process of bars of different specifications, ensuring the quality of the bundles. The entire process is automatically controlled, improving work efficiency and reducing manual labor intensity.

Description

Technical Field

[0001] This invention belongs to the field of steel production technology, and in particular relates to a system and method for preventing material drop and disorder in a bar production line. Background Technology

[0002] On the bar production line, the bars are sheared by a double-length flying shear and then cooled on a cooling bed. They are then cut to the required length by a cold shear. The cut bars are transported away by a post-shear roller conveyor, then aligned by a trimming roller conveyor, and finally transferred to an inspection table for inspection, sorting, and counting. After bundling, weighing, and labeling, they are transported by overhead crane to the finished product warehouse for storage or directly loaded into transport vehicles.

[0003] In existing bar production lines, the counted bars of specified length exhibit varying degrees of steel irregularities when transported to the bundling roller conveyor, with smaller-sized bars experiencing the most severe irregularities. This steel irregularity directly leads to poor bundling quality, making loose bundles more likely, which not only affects product quality but also increases the workload for workers.

[0004] There are different types of existing equipment for processing random steel bars, but all of them have some shortcomings.

[0005] A search revealed Chinese invention patent application number 202111366999.8, filed on November 18, 2021, which discloses a bar production line and a method for preventing bar material from falling out of control and causing irregular steel flow. Its technical features are:

[0006] It includes a chain conveyor and a rotary device arranged sequentially. The outlet of the chain conveyor is equipped with a guide plate and a baffle device. The baffle device includes a baffle arm that prevents the bars leaving the chain conveyor from moving forward. A guide channel is formed between the baffle arm and the guide plate to guide the bars as they fall. The falling bars enter the receiving area of ​​the rotary device from the lower end of the guide channel. In this invention, the bars are in the working area of ​​the baffle arm, which can prevent scrambling during the falling process to some extent. However, its shortcomings include:

[0007] 1) When the bar is falling, after leaving the working area of ​​the stop arm, there is still an unavoidable speed difference. Therefore, the bar will be tilted at the head and tail during the movement to the landing point, resulting in tail swing, crossing and entanglement, which makes it impossible to guarantee the quality of the bundle.

[0008] 2) To guide the bar stock during its descent, the stop arm is typically equipped with a counterweight at its lower end or a resilient reset device connected to the other side. However, in actual bar production lines, there are bars with a wide range of specifications, and a single type of counterweight or resilient reset device cannot meet the needs of different specifications. If the counterweight is too small, it will not provide guidance; if it is too large, it will cause the bar stock to fall unevenly.

[0009] 3) The chain conveyor and the material blocking device are arranged on one side of the bundling roller conveyor, and the rotary device is arranged on the other side, which makes the daily maintenance and replacement of the bundling roller conveyor difficult and increases the labor intensity. Summary of the Invention

[0010] 1) The technical problem that the invention aims to solve

[0011] To address the aforementioned problems, a method for preventing disordered steel discharge during a bar production line is provided. This method solves the problem of disordered steel discharge during the discharge of bars of different specifications. The entire process is automatically controlled, improving work efficiency and reducing manual labor intensity.

[0012] 2) Technical Solution

[0013] To achieve the above objectives, the present invention adopts the following technical solution: a system for preventing material drop and disorder in a bar production line, comprising:

[0014] A chain-type steel transfer machine includes a steel transfer frame and a conveyor chain assembly, which is installed on the steel transfer frame. The conveyor chain assembly includes a conveyor chain for transporting fixed-length bars. One end of the chain-type steel transfer machine receives the fixed-length bars, and the other end is equipped with a baffle plate.

[0015] The steel-shifting device includes a steel-shifting arm assembly and a bottom swing mechanism. The bottom swing mechanism drives the steel-shifting arm assembly to rotate and limits multiple sets of fixed-length bars between itself and the baffle plate, with a spacing of L1. The bottom swing mechanism is located at the bottom of the steel-shifting frame.

[0016] The flat-lift steel transfer machine includes a Wheatstone assembly and a main shaft. The Wheatstone assembly is mounted on the main shaft. The Wheatstone assembly includes a support arm and a swing arm. The support arm has an opening with a spacing of L2, which meets the condition L2>L1. The swing arm is mounted on the main shaft and rotates synchronously with the main shaft. The support arm is rotatably mounted on the swing arm, and the opening is always vertically upward as the swing arm rotates.

[0017] Bundled transport roller conveyors are used to transport multiple sets of standard-length bars to the next workstation;

[0018] The steel-shifting device is located at the tail of the chain-type steel transfer machine, and the flat-support steel transfer machine is located between the chain-type steel transfer machine and the bundled transport roller conveyor. It is used to transport multiple sets of fixed-length bars on the chain-type steel transfer machine to the bundled transport roller conveyor.

[0019] In a further technical solution, the baffle plate includes an installation part and a side part. The installation part is provided with a strip-shaped groove and a waist-shaped hole. A positioning bolt is installed in the strip-shaped groove, and the positioning bolt connects the installation part and the steel transfer frame.

[0020] The vertical height of the upper surface of the mounting part is X, and the vertical height of the upper surface of the conveyor chain is Y. The height difference is XY=H1, where H1 is 3~5mm.

[0021] The mounting part is provided with an angled side on the side away from the bundled transport roller, with the angled side having an angle α of 10-15°; the bottom height of the angled side is lower than Y, and the top height is higher than Y.

[0022] In a further technical solution, a fixing nut is provided on the mounting part, and an adjusting screw is installed on the fixing nut; limit strips are installed on the upper and lower sides of the first strip groove, and a movable plate is installed on the two sets of limit strips. The movable plate has a second strip groove that matches the first strip groove and is passed through by a positioning bolt; the adjusting screw is rotatably connected to the movable plate, and an adjusting sprocket is installed at the end of the movable plate away from the adjusting screw.

[0023] In a further technical solution, the bottom rocking mechanism includes a position frame one and a position frame two, with a hydraulic cylinder hinged on the position frame one;

[0024] The second position frame is provided in multiple sets, and a first drive shaft and a second drive shaft are installed on the upper part; the first drive shaft and the second drive shaft are coaxial and connected by a coupling.

[0025] Both drive shaft one and drive shaft two are fitted with steel levers;

[0026] The steel lever arm assembly includes a steel lever arm and a fixed ring, which are connected by a combination bolt. The fixed ring is provided with a keyway and a key is installed to make the steel lever arm and drive shaft one or drive shaft two rotate coaxially. A crank arm is fixedly installed on the outside of the steel lever arm.

[0027] The hydraulic cylinder and the crank arm are rotatably connected by a mounting pin.

[0028] In a further technical solution, the flat-lift steel transfer machine also includes a second coupling, a third coupling, a bearing housing, and a drive assembly. Multiple sets of main shafts are provided and are coaxially connected through the third coupling. The main shaft is sleeved and installed in the bearing housing, which supports the rotation of the main shaft. The third coupling is used to connect the drive assembly and the main shaft.

[0029] The swing arm is coaxially connected to the main shaft via a key;

[0030] When the support arm is in the initial receiving position, the support arm is located at the bottom of the conveyor chain, and the distance between the top of the support arm and the upper surface of the conveyor chain is H4, where H4>50mm;

[0031] A brake is installed on the drive assembly, which is used to control the opening and closing of the rotation of the output end of the drive assembly.

[0032] In a further technical solution, multiple sets of the conveyor chain assemblies are arranged parallel to each other along the axial direction of the fixed-length bar, with an adjacent spacing of 1.2 to 1.5 meters.

[0033] The steel lifting arms and support arms are arranged in multiple groups, and their arrangement direction is the same as that of the conveyor chain assembly. The spacing between two adjacent corresponding groups is 1.2 to 1.5 meters.

[0034] At least two sets of steel lever arm assemblies are installed on the drive shaft one or drive shaft two.

[0035] At least two sets of Wheatstone components shall be installed on a single spindle; the length of a single set of fixed-length bars shall be at least greater than the distance between the two sets of steel-drawing arm components and greater than the distance between the two sets of Wheatstone components.

[0036] In a further technical solution, the Wheatstone assembly also includes a counterweight and a synchronous transmission component. The counterweight and the support arm are installed at both ends of the swing arm, and the main shaft is eccentrically positioned at the installation position of the swing arm and close to the counterweight.

[0037] The counterweight is fan-shaped, and the synchronous transmission component is used to keep the opening of the support arm facing upwards.

[0038] In a further technical solution, a working plate and an inclined constraint plate are installed on the steel transfer frame; a guide rod and a return spring are installed between the working plate and the inclined constraint plate, the bottom end of the guide rod is fixedly connected to the inclined constraint plate, and the top end passes through the working plate and is fitted with a sealing plate; the return spring is sleeved on the guide rod and is fixedly connected to the working plate and the inclined constraint plate at the top and bottom respectively.

[0039] The inclined constraint plate is inclined downward in the direction of the advance of the fixed-length bar; a guide groove is provided on the inclined constraint plate, and a sliding plate is installed in the guide groove, the bottom of the sliding plate is in movable contact with multiple sets of fixed-length bars;

[0040] A traction component is installed on the working plate, and a connecting rod is installed at the bottom of the traction component. The connecting rod is detachably connected to the sliding plate. The traction component is used to drive the sliding plate to slide along the guide groove.

[0041] A magnetic section is provided on the steel transfer frame, and magnetic flow stabilizers are installed at the bottom of the magnetic section to evenly distribute the material.

[0042] In a further technical solution, a fixed frame is installed at one end of the steel-moving machine frame near the flat-support steel-moving machine. A rotating shaft is installed on the fixed frame, and a rotary motor is installed at one end of the rotating shaft. The output end of the rotary motor is coaxially connected to the rotating shaft. The rotating shaft is also provided with multiple sets of coaxially arranged curved grooves. Curved guide posts and sliding blocks are installed in the curved grooves, and the sliding blocks are sleeved on the curved guide posts. A connecting spring is installed between the sliding block and the end of the curved groove away from the fixed-length bar.

[0043] The sliding block is integrally provided with a gripper, and a clamping part is provided on the side of the gripper facing the fixed-length bar; the clamping part is used to press on multiple sets of fixed-length bars as the rotating shaft rotates.

[0044] Multiple sets of curved grooves are adjacent to each other by 5-10°.

[0045] A method for preventing haphazard material feeding in a bar production line system further includes the following steps:

[0046] Step 1: When the steel-pulling arm is in the low position, the support arm is located at the bottom of the conveyor chain and at the receiving position; the counter counts the number of standard-length bars that pass through.

[0047] Once the required number of bars are bundled, the bar separator rises and separates them; then, the chain transfer machine moves quickly to transport the bars to the baffle plate and stops moving.

[0048] Step 2: When the top of the steel arm is in a low position, the top of the steel arm is located at the bottom of the conveyor chain, and the distance between it and the upper surface of the conveyor chain is H3, where H3>50mm.

[0049] When the top of the steel-pulling arm is at the working high position, it is located on the conveyor chain;

[0050] The hydraulic cylinder inside the steel-pulling device is activated, driving the steel-pulling arm to move from a low position to a high position. Bundles of fixed-length bars are squeezed by the steel-pulling arm and all are restricted within the L1 range.

[0051] Step 3: The brake of the flat-lift steel transfer machine is released, the drive component is started, the main shaft is driven to rotate one revolution, and after the support arm starts from the receiving position, the support arm moves horizontally around the axis of the main shaft, with the opening facing upward; it drives multiple sets of fixed-length bars to leave the chain-type steel transfer machine and transport them to the bundled transport roller conveyor.

[0052] Step 4: The bundled transport roller conveyor transports the standard-length bars to the baling machine for bundling. At the same time, the steel lifting arm moves to the low position, the support arm returns to the receiving position, and the brake closes to engage the brake.

[0053] This completes the transfer of a bundle of bars from the chain-type steel transfer machine to the bundled transport roller conveyor.

[0054] 3) Beneficial effects

[0055] Compared with the prior art, the technical solution provided by this invention has the following significant advantages:

[0056] This invention relates to a bar production line system for preventing haphazardly falling bars. The bars are conveyed to a baffle plate via a conveyor chain, and then restrained between the baffle plate and the puller arm. A bottom-mounted flat-lifting and transferring machine smoothly lifts multiple sets of standard-length bars onto a bundled transport roller conveyor. Throughout the transport process, the standard-length bars do not exhibit any head-to-tail deviation, thus preventing tail-wagging, crossing, or entanglement. This effectively solves the problem of haphazardly falling bars of different specifications, ensuring bundle quality. The entire process is automated, improving work efficiency and reducing manual labor intensity. The device is simple, compact, and easy to manufacture and install.

[0057] This invention uses the output end of the traction component to move the connecting rod laterally. Due to the inclined setting of the inclined constraint plate, the bottom of the connecting rod not only drives the sliding plate to move, but also moves downward against the inclined constraint plate during sliding. This allows the movable contact with the stacked fixed-length bar material to push it down from a higher position to form a lower stacked fixed-length bar material, which is conducive to smooth movement.

[0058] In this embodiment, a rotary motor drives a rotating shaft to rotate, which in turn drives multiple sets of grippers to move and abut against multiple sets of fixed-length bars in sequence. Combined with the inclined constraint plate reducing the height of the multiple sets of fixed-length bars, it forms a similar effect to fingers clamping the multiple sets of fixed-length bars on different planes, thus avoiding the fixed-length bars from being reversed and twisted due to speed collision with the baffle plate during the transport of the conveyor chain. Attached Figure Description

[0059] The following description, with reference to the accompanying drawings, details the specific implementation of the present invention, including the shape and structure of each component, the relative positions and connections between the parts, the function and working principle of each part, the manufacturing process, and the operation and use methods, to help those skilled in the art to have a more complete, accurate, and in-depth understanding of the inventive concept and technical solution of the present invention.

[0060] Figure 1 This is a top view of the system for preventing material drop and disorder in the bar production line of the present invention.

[0061] Figure 2 yes Figure 1 A schematic diagram of the AA-direction section;

[0062] Figure 3 This is a side view schematic diagram of the bar production line system for preventing material drop and disordered steel production according to the present invention;

[0063] Figure 4 This is a side view of the conveyor chain assembly of the bar production line system for preventing material drop and steel misalignment according to the present invention;

[0064] Figure 5 This is a schematic diagram of the baffle plate of the bar production line system for preventing material drop and disorder in the present invention;

[0065] Figure 6 This is a top view schematic diagram of the steel-pulling device in the bar production line system for preventing material drop and disordered steel production according to the present invention.

[0066] Figure 7 yes Figure 6 BB-direction sectional view;

[0067] Figure 8 This is a schematic diagram of the low position and working high position of the steel-drawing arm of the present invention;

[0068] Figure 9 This is a schematic diagram of the steel-shifting arm assembly of the present invention;

[0069] Figure 10 This is a top view schematic diagram of the flat support and steel transfer machine of the bar production line system for preventing material drop and disorder in the present invention;

[0070] Figure 11 yes Figure 10 Schematic diagram of the CC section;

[0071] Figure 12 This is a side view schematic diagram of another bar production line system for preventing material drop and disordered steel production according to the present invention;

[0072] Figure 13 yes Figure 12 Enlarged view of part D;

[0073] Figure 14 This is a top view of the inclined constraint plate;

[0074] Figure 15 This is a vertical sectional view of the inclined constraint plate;

[0075] Figure 16 This is a side view schematic diagram of another bar production line system for preventing material drop and disordered steel production according to the present invention;

[0076] Figure 17 for Figure 16 Enlarged view of part E;

[0077] Figure 18 This is a schematic diagram showing the position of the fixed frame and rotating shaft of the present invention installed on the chain-type mobile steel machine;

[0078] Figure 19 This is a schematic diagram of the upper structure of the fixing frame of the present invention;

[0079] Figure 20 This is a cross-sectional schematic diagram of the rotating shaft of the present invention.

[0080] In the picture:

[0081] 1. Chain-type steel transfer machine; 2. Steel shifting device; 3. Flat-support steel transfer machine; 4. Bundled transport roller conveyor;

[0082] 101. Conveyor chain assembly; 102. Baffle plate; 103. Steel transfer frame one; 104. Conveyor chain; 105. Positioning bolt; 106. Angled side; 107. Limiting strip; 108. Moving plate; 109. Adjusting sprocket; 1021. Mounting part; 1022. Side guard part;

[0083] 201. Steel lever arm assembly; 2011. Steel lever arm; 2012. Fixing ring; 202. Hydraulic cylinder; 203. Drive shaft one; 204. Coupling one; 205. Drive shaft two; 206. Pin; 207. Crank arm; 208. Positioning frame one; 209. Positioning frame two;

[0084] 301. Wheatstone assembly; 3011. Support arm; 3012. Counterweight; 3013. Swing arm; 302. Main shaft; 303. Coupling II; 304. Drive assembly; 3041. Brake; 305. Coupling III; 306. Bearing housing;

[0085] 5. Fixed-length bars;

[0086] 61. Working plate; 62. Inclined constraint plate; 63. Guide rod; 64. Return spring; 65. Sliding plate; 66. Traction component; 67. Connecting rod; 68. Magnetic zone; 681. Magnetic current stabilizer;

[0087] 71. Fixed frame; 72. Rotating shaft; 73. Rotary motor; 74. Curved groove; 75. Curved guide post; 76. Sliding block; 77. Connecting spring; 78. Gripper; 781. Clamping part. Detailed Implementation

[0088] To further understand the content of this invention, a detailed description of the invention will be provided in conjunction with the accompanying drawings and embodiments.

[0089] Example 1

[0090] Combination Figure 1-4 6-8 and 10-11, a bar production line system for preventing material loss and disorder in this embodiment is characterized by including a chain-type steel transfer machine 1, a steel-shifting device 2, a flat-support steel transfer machine 3, and a bundled transport roller conveyor 4. The chain-type steel transfer machine 1 is used to transport fixed-length bars, the steel-shifting device 2 is arranged at the tail of the chain-type steel transfer machine 1, and the flat-support steel transfer machine 3 is arranged between the chain-type steel transfer machine 1 and the bundled transport roller conveyor 4 to transport the fixed-length bars on the chain-type steel transfer machine 1 to the bundled transport roller conveyor 4.

[0091] The chain-type steel transfer machine 1 includes a conveyor chain assembly 101, and a baffle plate 102 is bolted to the tail of the conveyor chain assembly 101.

[0092] The conveyor chain assembly includes a drive sprocket, an adjusting sprocket, and a steering sprocket. Figure 2 The chain-driven steel transfer machine has drive sprockets and adjusting sprockets installed at both ends on its two sides, and a bottom sprocket is also installed on the bottom inner side of the steel transfer frame. The steering sprocket is installed on the steel transfer frame and faces downwards, positioned horizontally between the drive sprocket and the adjusting sprocket. Figure 4 As shown, the conveyor chain assembly includes a conveyor chain, which is sequentially connected to a drive sprocket and an adjusting sprocket. The chain then drives the steel bars to the bottom sprocket via a steering sprocket, and finally returns to the drive sprocket to complete the end-to-end closure, forming a conveyor chain that is both driven and tensioned at the top. The drive of the conveyor chain propels the fixed-length bars forward synchronously. The adjusting sprocket can be adjusted horizontally relative to the moving steel bars, thereby adjusting the tension of the conveyor chain.

[0093] like Figure 6 As shown, the steel-shifting device 2 includes a steel-shifting arm assembly 201 and a bottom swing mechanism. The bottom swing mechanism drives the steel-shifting arm assembly 201 to rotate, and defines multiple sets of fixed-length bars 5 between the bottom swing mechanism and the baffle plate 102, with a spacing of L1. The bottom swing mechanism is located at the bottom of the steel-shifting frame 103. The bottom swing mechanism includes a position frame 208 and a position frame 209. A hydraulic cylinder 202 is hinged on the position frame 208.

[0094] Multiple sets of the second position frame 209 are provided, and a first drive shaft 203 and a second drive shaft 205 are installed on the upper part; the first drive shaft 203 and the second drive shaft 205 are coaxial and connected by a first coupling 204.

[0095] Both drive shaft 203 and drive shaft 205 are fitted with steel levers 2011.

[0096] The steel lever arm assembly 201 includes a steel lever arm 2011 and a fixing ring 2012. The steel lever arm 2011 and the fixing ring 2012 are connected by combination bolts. The fixing ring 2012 is provided with a keyway and a key is installed to make the steel lever arm 2011 and the drive shaft 203 or the drive shaft 205 rotate coaxially. A crank arm 207 is fixedly installed on the outside of the steel lever arm 2011.

[0097] The hydraulic cylinder 202 and the crank arm 207 are rotatably connected by a mounting pin 206.

[0098] like Figure 10 As shown,

[0099] The flat-lift steel transfer machine 3 also includes a second coupling 303, a third coupling 305, a bearing seat 306, and a drive assembly 304. Multiple sets of main shafts 302 are provided and coaxially connected via the third coupling 305. The main shaft 302 is sleeved and installed inside the bearing seat 306, which supports the rotation of the main shaft 302. The third coupling 305 connects the drive assembly 304 and the main shaft 302. The swing arm 3013 is coaxially connected to the main shaft 302 via a key. When the support arm 3011 is in the initial receiving position, it is located at the bottom of the conveyor chain 104, with its top distance from the upper surface of the conveyor chain 104 being H4, where H4 > 50 mm. A brake 305 is installed on the drive assembly 304, which controls the opening and closing of the output rotation of the drive assembly 304.

[0100] Figure 4 In the diagram, X represents the upper surface of the baffle plate 102, Y represents the upper surface of the chain of the conveyor chain assembly 101, XY = H1, and the value of H1 is 3-5 mm. Z represents the top surface of the baffle plate 102, ZY = H2. However, since the diameter range of the fixed-length bars cannot be determined or the diameter range fluctuates greatly during rolling extrusion, the end value under extreme conditions is the diameter of a group of fixed-length bars, and the other end value is the sum of the diameters of all bars.

[0101] Combination Figure 2 , Figure 10 and 11 The flat-lift steel transfer machine 3 includes a Wheatstone assembly 301 and a main shaft 302. The Wheatstone assembly 301 is mounted on the main shaft 302. The Wheatstone assembly 301 includes a support arm 3011 and a swing arm 3013. The support arm 3011 has an opening with a spacing of L2, which meets the condition L2>L1. The swing arm 3013 is mounted on the main shaft 302 and rotates synchronously. The support arm 3011 is rotatably mounted on the swing arm 3013, and the opening is always vertically upward as the swing arm 3013 rotates.

[0102] like Figure 11As shown, the Wheatstone assembly 301 also includes a counterweight 3012 and a synchronous transmission component. The counterweight 3012 and the support arm 3011 are mounted at both ends of the swing arm 3013. The main shaft 302 is eccentrically positioned at the mounting position of the swing arm 3013 and close to the counterweight 3012. The counterweight 3012 is fan-shaped, and the synchronous transmission component is used to keep the opening of the support arm 3011 facing upwards. The synchronous transmission component refers to existing synchronous transmissions, such as chain synchronization systems and gear synchronization systems. For example, in a chain synchronization system, the core is a 1:1 speed ratio reverse transmission. Not shown in the figure, the main shaft sprocket is mounted on the main shaft and driven to rotate by a motor. A pallet sprocket is mounted on the support arm, and the pallet sprocket is the same size as the main shaft sprocket. A tension wheel is mounted on the swing arm to change the chain path and maintain chain tension. A synchronous chain is installed, connecting all the sprockets at both ends. Working principle: When the main shaft rotates, it drives the main shaft sprocket fixed on it to rotate. Since the support arm is connected to the swing arm, the entire support arm revolves with the swing arm and the main shaft. Simultaneously, the main shaft sprocket drives the pallet sprocket via a synchronous chain. The chain's winding path causes the rotation direction applied by the main shaft sprocket to the pallet sprocket to be opposite to the rotation direction of the main shaft itself. This achieves a clockwise rotation of θ degrees on the main shaft, and through chain transmission, the pallet sprocket, i.e., the pallet, is driven to rotate counterclockwise by θ degrees.

[0103] The Whiston assembly 301 includes a support arm 3011 and a counterweight 3012, wherein the opening distance of the support arm 3011 is L2, and L2>L1. The drive assembly 304 includes a brake 3041.

[0104] When the support arm 3011 is in the receiving position, that is... Figure 3 As shown, the distance from the top of the conveyor chain assembly 101 to the upper surface of the chain is H4, where H4 > 50mm. Multiple sets of the steel-pulling arms 2011 and support arms 3011 are arranged in the same direction as the conveyor chain assembly 101, with each set spaced 1.2-1.5 meters apart. During movement, the support arm 3011 always translates around the axis of the main shaft 302, with L2 taken as the limit position of the top opening, ensuring that a single rotation can drive multiple sets of fixed-length bars in a single transport.

[0105] A method for preventing disordered material feeding in a bar production line, comprising the following steps:

[0106] Step 1: Initial setup: Steel-pulling arm 2011 is in the low position, and support arm 3011 is in the receiving position;

[0107] The counter counts the number of standard-length bars that pass through. When the required number for bundling is reached, the steel divider rises to separate the standard-length bars, thereby limiting the number of bars that can be bundled at one time. Then, the chain steel transfer machine 1 moves quickly to transport the bars to the baffle plate 102 and then stops.

[0108] Step 2: The hydraulic cylinder 202 of the steel-pulling device 2 is activated, driving the steel-pulling arm 2011 to move from a low position to a high position. The bundle of bars is completely confined within the L1 range by the action of the steel-pulling arm 2011. During this process, the bars do not deviate at the head or tail, thus preventing tail swinging, crossing, and entanglement.

[0109] Step 3: The brake 3041 of the flat-lift steel transfer machine 3 is opened, the drive assembly 304 is started, and the main shaft 302 is driven to rotate one revolution. After the support arm 3011 starts from the receiving position, it moves around the axis of the main shaft 302. During this process, the bar stock of the chain steel transfer machine 1 is transported to the conveying bundle conveyor roller 4.

[0110] Step 4: The bundled transport roller conveyor 4 transports the bar stock to the baler for bundling. At the same time, the steel pusher arm 2011 moves to the low position, the support arm 3011 returns to the receiving position, and the brake 3041 closes to brake.

[0111] At this point, the transport of a bundle of bars from the chain-type steel transfer machine 1 to the conveyor roller conveyor 4 for bundling is completed.

[0112] This invention relates to a bar production line system for preventing disordered bar stock during descent. The bars remain perfectly aligned throughout the transport process, preventing tail-wagging, crossing, and tangling. This effectively solves the problem of disordered bar stock of different specifications during descent, ensuring bundle quality. The entire process is automated, improving work efficiency and reducing manual labor intensity. The device is simple, compact, and easy to manufacture and install.

[0113] Example 2

[0114] Combination Figure 5 This embodiment of a bar production line has a basic structure similar to that of Embodiment 1. The baffle plate 102 includes an installation part 1021 and a baffle part 1022. The installation part 1021 has a strip-shaped groove 1023 and a waist-shaped hole. A positioning bolt is installed in the strip-shaped groove 1023, and the positioning bolt connects the installation part 1021 and the steel transfer frame 103.

[0115] The vertical height of the upper surface of the mounting part 1021 is X, and the vertical height of the upper surface of the conveyor chain 104 is Y. The height difference is XY=H1, where H1 is 3~5mm.

[0116] The mounting section 1021 has an angled side 106 on the side away from the bundled transport roller conveyor 4. The angled side 106 is at an angle α, which is 10-15°. The bottom height of the angled side 106 is lower than Y, and the top height is higher than Y. Multiple sets of the conveyor chain assembly 101 are arranged parallel to each other along the running direction of the bar, with a spacing of 1.2-1.5 meters between each set. A fixing nut is provided on the mounting section 1021, and an adjusting screw 105 is installed on the fixing nut. Limiting strips 107 are installed on the upper and lower sides of the first strip groove 1023. Moving plates 108 are installed on the two sets of limiting strips 107. The moving plates 108 have a second strip groove adapted to the first strip groove 1023 and are passed through by positioning bolts. The adjusting screw 105 is rotatably connected to the moving plate 108, and an adjusting sprocket 109 is installed at the end of the moving plate 108 away from the adjusting screw 105.

[0117] Example 3

[0118] Combination Figure 8 and 9 This embodiment provides a system for preventing material drop and disorder in a bar production line. Its structure is basically the same as that in Embodiment 1. The steel-shifting arm assembly 201 includes a steel-shifting arm 2011 and a fixing ring 2012. The steel-shifting arm 2011 and the fixing ring 2012 are connected by bolts. The steel-shifting arm 2011 is provided with a keyway.

[0119] When the steel lever arm 2011 is in a low position, the distance between it and the upper surface of the conveyor chain assembly 101 is H3, where H3 > 50 mm.

[0120] When the steel-pulling arm 2011 is in the high position, the distance between it and the stop plate 102 is L1. The hydraulic cylinder 202 is equipped with a displacement sensor, which is built-in.

[0121] Example 4

[0122] like Figure 12-15 As shown, another embodiment of the present invention is provided. Based on embodiment 3, in order to reduce the problem of tangled steel winding of multiple sets of fixed-length bars in the early stage, a working plate 61 and an inclined constraint plate 62 are installed on the steel transfer frame 103. A guide rod 63 and a return spring 64 are installed between the working plate 61 and the inclined constraint plate 62. The bottom end of the guide rod 63 is fixedly connected to the inclined constraint plate 62, and the top end passes through the working plate 61 and is fitted with a sealing plate. The return spring 64 is sleeved on the guide rod 63 and is fixedly connected to the working plate 61 and the inclined constraint plate 62 at the top and bottom, respectively.

[0123] The inclined constraint plate 62 is inclined downward in the direction of the advance of the fixed length bar 5; a guide groove is provided on the inclined constraint plate 62, and a sliding plate 65 is installed in the guide groove. The bottom of the sliding plate 65 is in movable contact with multiple sets of fixed length bars 5.

[0124] A traction component 66 is installed on the working plate 61, and a connecting rod 67 is installed at the bottom of the traction component 66. The connecting rod 67 is detachably connected to the sliding plate 65. The traction component 66 is used to drive the sliding plate 65 to slide along the guide groove. The traction component can be an electric push rod, a pneumatic cylinder, or a hydraulic cylinder.

[0125] A magnetic section 68 is provided on the steel transfer frame 103, and magnetic current stabilizers 681 are installed at the bottom of the magnetic section to evenly distribute the material.

[0126] In use, the output end of the traction component moves to drive the connecting rod to move laterally. Due to the inclined setting of the inclined constraint plate, the bottom of the connecting rod drives the sliding plate to move, and during the sliding, it abuts against the inclined constraint plate and moves downward, thereby moving and abutting against the stacked fixed-length bar material. It pushes the stacked fixed-length bar material from a higher position to gradually descend, forming a lower stacked fixed-length bar material, and is constrained by the steel arm to be pulled out later.

[0127] Example 5

[0128] like Figure 16-17 As shown, in another embodiment of the present invention, based on embodiment 2, a fixed frame 71 is installed at the end of the steel-moving frame 103 near the flat-support steel-moving machine 3. A rotating shaft 72 is installed on the fixed frame 71, and a rotating motor 73 is installed at the end of the rotating shaft 72. The output end of the rotating motor 73 is coaxially connected to the rotating shaft 72. The rotating shaft 72 is also provided with multiple sets of coaxially arranged curved grooves 74, such as... Figure 16 As shown, a curved guide post 75 and a sliding block 76 are installed in the curved groove 74, and the sliding block 76 is sleeved on the curved guide post 75; a connecting spring 77 is installed between the sliding block 76 and the end of the curved groove 74 away from the fixed-length bar 5.

[0129] The sliding block 76 is integrally provided with a gripper 78, and the gripper 78 is provided with a clamping part 781 on the side facing the fixed length bar 5; the clamping part 781 is used to press on multiple sets of fixed length bars 5 as the rotating shaft 72 rotates.

[0130] Multiple sets of curved grooves 74 are adjacent and differ by 5-10°.

[0131] When the conveyor chain transports multiple sets of fixed-length bars, collisions with the edge of the baffle plate will cause them to bounce upwards and backwards. (Refer to...) Figure 5 This results in disordered steel, causing some of the standard-length bars to become entangled.

[0132] In this embodiment, a rotary motor drives a rotating shaft to rotate, which in turn drives multiple sets of grippers to move and abut against multiple sets of fixed-length bars in sequence. Combined with the inclined constraint plate lowering the height of the multiple sets of fixed-length bars, it forms a shape similar to multiple rotating fingers, which clamp the multiple sets of fixed-length bars in sequence on different planes. This avoids the fixed-length bars from being reversed and twisted due to speed collision with the baffle plate during the transport of the conveyor chain.

[0133] In this embodiment, a rotary motor drives a rotating shaft to rotate, simultaneously causing the grippers to move and abut against multiple sets of fixed-length bars. When one end of the conveyor chain is detected entering the baffle plate, the rotary motor drives the first set of grippers to abut against the fixed-length bars. Since the first set of grippers is relatively short, its position is limited to the right end of the multiple sets of fixed-length bars. Figure 15 As shown. Continue rotating until the second set of grippers is positioned in the middle of the multiple sets of standard-length bars. Continue rotating until the third set of grippers is positioned at the left end of the multiple sets of standard-length bars. During continuous rotation, it is necessary to ensure that the first set of grippers, while clamping the standard-length bars, does not reach the end wall of the curved groove, and the same applies to the second set of grippers, ensuring sufficient space for all three sets of grippers to clamp. A connecting spring is used to ensure the initial position of the three sets of grippers, facilitating quick reset.

[0134] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A system for preventing uneven material drop and disorder in a bar production line, characterized in that, include: The chain-type steel transfer machine (1) includes a steel transfer frame (103) and a conveyor chain assembly (101). The conveyor chain assembly (101) is installed on the steel transfer frame (103). The conveyor chain assembly (101) includes a conveyor chain (104) for transporting fixed-length bars (5). One end of the chain-type steel transfer machine (1) enters the fixed-length bars (5), and the other end is equipped with a baffle plate (102). The steel-moving device (2) includes a steel-moving arm assembly (201) and a bottom swing mechanism. The bottom swing mechanism drives the steel-moving arm assembly (201) to rotate and limits multiple sets of fixed-length bars (5) between it and the baffle plate (102) with a spacing of L1. The bottom swing mechanism is located at the bottom of the steel-moving frame (103). The flat-lift steel transfer machine (3) includes a Wheatstone assembly (301) and a main shaft (302). The Wheatstone assembly (301) is mounted on the main shaft (302). The Wheatstone assembly (301) includes a support arm (3011) and a swing arm (3013). The support arm (3011) has an opening, and the distance between the openings is L2, which meets the condition that L2>L1. The swing arm (3013) is mounted on the main shaft (302) and rotates synchronously. The support arm (3011) is rotatably mounted on the swing arm (3013), and the opening is always vertically upward as the swing arm (3013) rotates. Bundled transport roller conveyor (4) is used to transport multiple sets of fixed-length bars (5) to the next work station; The steel-shifting device (2) is arranged at the tail of the chain steel-shifting machine (1), and the flat-lift steel-shifting machine (3) is arranged between the chain steel-shifting machine (1) and the bundled transport roller conveyor (4) to transport multiple sets of fixed-length bars (5) on the chain steel-shifting machine (1) to the bundled transport roller conveyor (4). The bottom rocking mechanism includes a first position frame (208) and a second position frame (209), and a hydraulic cylinder (202) is hinged on the first position frame (208). The second position frame (209) is provided with multiple sets, and a first drive shaft (203) and a second drive shaft (205) are installed on the upper part; the first drive shaft (203) and the second drive shaft (205) are coaxial and connected by a first coupling (204); Both drive shaft one (203) and drive shaft two (205) are fitted with a lever arm (2011). The steel lever arm assembly (201) includes a steel lever arm (2011) and a fixing ring (2012). The steel lever arm (2011) and the fixing ring (2012) are connected by a combination bolt. The fixing ring (2012) is provided with a keyway and a key is installed to make the steel lever arm (2011) and the first drive shaft (203) or the second drive shaft (205) rotate coaxially. A crank arm (207) is fixedly installed on the outside of the steel lever arm (2011). The hydraulic cylinder (202) and the crank arm (207) are rotatably connected by a mounting pin (206); Multiple sets of the conveyor chain assembly (101) are arranged parallel to the axial direction of the fixed-length bar (5), with an adjacent spacing of 1.2 to 1.5 meters; The steel lifting arm (2011) and the support arm (3011) are arranged in multiple groups, and are arranged in the same direction as the conveyor chain assembly (101). The distance between two adjacent corresponding groups is 1.2 to 1.5 meters. At least two sets of steel lever arm assemblies (201) are installed on the first drive shaft (203) or the second drive shaft (205). At least two sets of Wheatstone components (301) are installed on a single spindle (302); the length of a single set of fixed-length bars (5) is at least greater than the distance between the two sets of steel arm components (201) and greater than the distance between the two sets of Wheatstone components (301); The Whiston assembly (301) also includes a counterweight (3012) and a synchronous transmission component, wherein the counterweight (3012) and the support arm (3011) are mounted at both ends of the swing arm (3013), and the main shaft (302) is eccentrically positioned at the mounting position of the swing arm (3013) and close to the counterweight (3012). The counterweight (3012) is fan-shaped, and the synchronous transmission component is used to keep the opening of the support arm (3011) facing upward. A working plate (61) and an inclined constraint plate (62) are installed on the steel transfer frame (103); a guide rod (63) and a return spring (64) are installed between the working plate (61) and the inclined constraint plate (62). The bottom end of the guide rod (63) is fixedly connected to the inclined constraint plate (62), and the top end passes through the working plate (61) and is fitted with a sealing plate; the return spring (64) is sleeved on the guide rod (63) and is fixedly connected to the working plate (61) and the inclined constraint plate (62) at the top and bottom respectively. The inclined constraint plate (62) is inclined downward in the direction of the advance of the fixed length bar (5); a guide groove is provided on the inclined constraint plate (62), and a sliding plate (65) is installed in the guide groove. The bottom of the sliding plate (65) is in contact with multiple sets of fixed length bars (5) and slides upward from the bottom. A traction component (66) is installed on the working plate (61), and a connecting rod (67) is installed at the bottom of the traction component (66). The connecting rod (67) is detachably connected to the sliding plate (65). The traction component (66) is used to drive the sliding plate (65) to slide along the guide groove. A magnetic section (68) is provided on the steel transfer frame (103), and a magnetic current stabilizer (681) is installed at the bottom of the magnetic section (68) to evenly distribute the material. A fixed frame (71) is installed at the end of the steel transfer frame (103) near the flat support steel transfer machine (3). A rotating shaft (72) is installed on the fixed frame (71). A rotary motor (73) is installed at the end of the rotating shaft (72). The output end of the rotary motor (73) is coaxially connected to the rotating shaft (72). The rotating shaft (72) is also provided with multiple sets of coaxially arranged curved grooves (74). Curved guide posts (75) and sliding blocks (76) are installed in the curved grooves (74). The sliding blocks (76) are sleeved on the curved guide posts (75). A connecting spring (77) is installed between the sliding block (76) and the end of the curved groove (74) away from the fixed length bar (5). The sliding block (76) is integrally provided with a gripper (78), and the gripper (78) is provided with a clamping part (781) on the side facing the fixed length bar (5); the clamping part (781) is used to press on multiple sets of fixed length bars (5) as the rotating shaft (72) rotates; Multiple sets of curved grooves (74) are adjacent and differ by 5-10°.

2. The system for preventing material drop and disorder in a bar production line according to claim 1, characterized in that, The baffle plate (102) includes a mounting part (1021) and a side part (1022). The mounting part (1021) is provided with a strip-shaped groove (1023) and a waist-shaped hole. A positioning bolt is installed in the strip-shaped groove (1023), and the positioning bolt connects the mounting part (1021) and the steel transfer frame (103). The vertical height of the upper surface of the mounting part (1021) is X, and the vertical height of the upper surface of the conveyor chain (104) is Y. The height difference is XY=H1, where H1 is 3~5mm. The mounting part (1021) is provided with an angled side (106) on the side away from the bundled transport roller (4). The angled side (106) is at an angle α, which is 10-15°. The bottom height of the angled side (106) is lower than Y, and the top height is higher than Y.

3. The system for preventing material drop and disorder in a bar production line according to claim 2, characterized in that, A fixing nut is provided on the mounting part (1021), and an adjusting screw (105) is installed on the fixing nut; a limiting strip (107) is installed on the upper and lower sides of the first strip groove (1023), and a moving plate (108) is installed on the two sets of limiting strips (107). The moving plate (108) has a second strip groove that matches the first strip groove (1023) and is passed through by a positioning bolt; the adjusting screw (105) is connected to the moving plate (108), and an adjusting sprocket (109) is installed at the end of the moving plate (108) away from the adjusting screw (105).

4. The system for preventing material spillage and disorderly steel cutting in a bar production line according to claim 1, characterized in that, The flat-lift steel transfer machine (3) also includes a second coupling (303), a third coupling (305), a bearing housing (306), and a drive assembly (304). Multiple sets of main shafts (302) are provided and connected to each other through the third coupling (305). The main shaft (302) is sleeved and installed in the bearing housing (306), and the bearing housing (306) is used to support the rotation of the main shaft (302). The third coupling (305) is used to connect the drive assembly (304) and the main shaft (302). The swing arm (3013) is coaxially connected to the main shaft (302) via a key; When the support arm (3011) is in the initial receiving position, the support arm (3011) is located at the bottom of the conveyor chain (104), and the distance between the top of the support arm and the upper surface of the conveyor chain (104) is H4, where H4>50mm; A brake (3041) is installed on the drive assembly (304), and the brake (3041) is used to control the opening and closing of the rotation of the output end of the drive assembly (304).

5. A method for preventing haphazard material feeding in a bar production line, characterized in that, The bar production line system for preventing material drop and disorder as described in any one of claims 1-4 further includes the following steps: Step 1: When the steel-pulling arm (2011) is in the low position, the support arm (3011) is located at the bottom of the conveyor chain (104) and at the receiving position; the counter counts the number of standard-length bars that pass through. Once the required number of bars for bundling is reached, the bar separator rises and separates the bars; then, the chain transfer machine (1) moves quickly to transport the bars to the baffle plate (102) and stops moving. Step 2: When the top of the steel arm (2011) is in a low position, the top of the steel arm (2011) is located at the bottom of the conveyor chain (104), and the distance between it and the upper surface of the conveyor chain (104) is H3, where H3>50mm. When the top of the steel-pulling arm (2011) is at the working high position, it is located on the conveyor chain (104); The hydraulic cylinder (202) inside the steel-pulling device (2) is activated, driving the steel-pulling arm (2011) to move from a low position to a high position. The bundled number of fixed-length bars (5) are squeezed by the steel-pulling arm (2011) and all are restricted within the L1 range. Step 3: The brake (3041) of the flat-lift steel transfer machine (3) is opened, the drive assembly (304) is started, the drive main shaft (302) rotates one revolution, and after the support arm (3011) starts from the receiving position, the support arm (3011) moves around the axis of the main shaft (302) while the opening is kept facing upward; it drives multiple sets of fixed-length bars (5) to disengage from the chain-type steel transfer machine (1) and transport them to the bundled transport roller conveyor (4); Step 4: The bundled transport roller conveyor (4) transports the fixed-length bar stock (5) to the baler for bundling. At the same time, the steel arm (2011) moves to the low position, the support arm (3011) returns to the receiving position, and the brake (3041) closes to brake. Thus, the transport of a bundle of bars from the chain transfer machine (1) to the bundle transport roller conveyor (4) is completed.

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