Device for cleaning tail steel of bar and bar shearing mechanism

Abstract

The utility model discloses a device for cleaning bar tail steel. The device comprises a through shaft arranged in the width direction of a roller way. The two ends of the through shaft are mounted on the corresponding bearing seats; supporting arms are fixedly arranged on the through shaft and located on the two sides of the roller way, the supporting arms are vertically arranged, a steel pushing frame is hinged to the tops of the two supporting arms, and a limiting block is arranged on at least one supporting arm and located below the steel pushing frame. The steel pushing frame is located above the roller way, and when the supporting arm rotates along with the through shaft, the steel pushing frame falls on the roller way and pushes short steel on the roller way out of a cold shearing area; the through shaft is connected with a power mechanism used for driving the through shaft to rotate along the axis of the through shaft. The through shaft is installed below the roller way, the supporting arm is installed on the through shaft, the steel pushing frame is installed on the supporting arm, finally the through shaft is driven by the power mechanism to rotate, the supporting arm and the steel pushing frame are sequentially driven to rotate relative to the through shaft, and therefore short steel on the roller way is pushed away from a preset area, and the production progress is accelerated.

Description

Technical Field

[0001] This utility model belongs to the technical field of bar shearing equipment, and in particular relates to a device for cleaning the tail steel of bars. Background Technology

[0002] Cold shear is a key piece of equipment for cutting bars to length. When cold shearing bars, after the "last cut", a short piece of steel (usually 20-30cm in length) will remain on the roller conveyor. These short pieces of steel will remain on the roller conveyor after cold shearing and need to be cleaned by workers on site using tools such as hooks.

[0003] Because the short steel pieces left on the roller conveyor are inside the cold shear space, the cleaning tools are restricted by the space of the cold shear, resulting in a slow cleaning speed, which in turn reduces the bar shearing speed and affects the production rhythm. Utility Model Content

[0004] The purpose of this invention is to provide a device for cleaning the tail steel of bar stock. It is installed on a roller conveyor and driven by a drive device, which can quickly clean the short steel.

[0005] The present invention adopts the following technical solution: a device for cleaning the tail steel of bar stock, comprising a through shaft arranged along the width direction of the roller conveyor;

[0006] Both ends of the through shaft are mounted on corresponding bearing seats;

[0007] Support arms are fixedly installed on both sides of the roller conveyor on the through shaft. The support arms are vertically arranged, and a pusher frame is hinged to the top of the two support arms. A limit block is installed on at least one support arm below the pusher frame.

[0008] The steel pusher is located above the roller conveyor. When the support arm rotates with the through shaft, the steel pusher falls onto the roller conveyor and pushes the short steel on the roller conveyor out of the cold shearing area.

[0009] The through shaft is connected to a power mechanism, which drives the through shaft to rotate along its axis.

[0010] Furthermore, the pusher frame includes two crossbars arranged along the length of the roller conveyor, with the rear ends of the two crossbars respectively hinged to the top of the corresponding support arm;

[0011] The front ends of the two crossbars are connected by push plates.

[0012] Furthermore, the front end of the pusher plate is a vertical surface.

[0013] Furthermore, the power mechanism is connected to the through shaft via a crank;

[0014] One end of the crank is fixedly connected to the through shaft, and the other end of the crank is hinged to the output shaft of the power mechanism.

[0015] Furthermore, the angles formed by the two support arms and the through shaft are equal, and the distances of the two support arms from the sides of the roller conveyor are equal.

[0016] Furthermore, the crossbar is hinged to the support arm via a short axis.

[0017] Another technical solution of this utility model: a bar shearing mechanism, including the above-mentioned device for cleaning the tail steel of a bar.

[0018] Furthermore, a device for cleaning the tail steel of the bar is installed at the inlet of the cold shear.

[0019] The beneficial effects of this utility model are as follows: This utility model installs a through shaft below the roller conveyor, installs a support arm on the through shaft, and then installs a steel pusher frame on the support arm. Finally, the through shaft is driven to rotate by a power mechanism, which in turn drives the support arm and the steel pusher frame to rotate relative to the through shaft, thereby pushing the short steel on the roller conveyor away from the predetermined area, thus speeding up the production progress. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a device for cleaning the tail steel of a bar according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the working state of an embodiment of the present utility model.

[0022] Among them: 10. Roller conveyor;

[0023] 21. Bearing housing; 22. Power mechanism; 23. Support arm; 24. Through shaft; 25. Push plate; 26. Limiting block; 27. Crossbar;

[0024] A. Steel pushing area; A1. Steel pushing device in non-steel pushing state; A2. Steel pushing device in steel pushing state;

[0025] 30. Cold shear; 40. Power station. Detailed Implementation

[0026] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0027] When cleaning the tail steel (i.e., short steel), workers need to use iron hooks under the cold shear to perform the cleaning operation, which poses a significant safety risk. Since one multiple-length steel piece is cut every minute, the tail steel needs to be cleaned every minute, resulting in high labor intensity for employees. During the cleaning process, the cold shear cannot cut normally, and the roller conveyor cannot transport materials properly, severely affecting the production rhythm and reducing output. To address these shortcomings, the solutions needed are to reduce employee safety risks, labor intensity, improve work efficiency, and enhance the quality of steel cutting.

[0028] This utility model discloses a device for cleaning the tail steel of a bar stock, such as... Figure 1As shown, it includes a through shaft 24 arranged along the width direction of the roller conveyor 10; both ends of the through shaft 24 are mounted on corresponding bearing seats 21; support arms 23 are fixedly arranged on the through shaft 24 and on both sides of the roller conveyor 10, the support arms 23 are arranged vertically, and a pusher frame is hinged to the top of the two support arms 23; at least one support arm 23 is provided with a limit block 26 below the pusher frame; the pusher frame is located above the roller conveyor 10, and when the support arm 23 rotates with the through shaft 24, the pusher frame falls on the roller conveyor 10 and pushes the short steel on the roller conveyor 10 out of the cold shear 30 area; the through shaft 24 is connected to a power mechanism 22, which is used to drive the through shaft 24 to rotate along its axis.

[0029] This invention installs a through shaft 24 below the roller conveyor, a support arm 23 on the through shaft 24, and a steel pusher frame on the support arm 23. Finally, the through shaft 24 is driven to rotate by a power mechanism 22, which in turn drives the support arm 23 and the steel pusher frame to rotate relative to the through shaft 24, thereby pushing the short steel on the roller conveyor 10 away from the predetermined area and thus speeding up the production progress.

[0030] The steel pusher frame includes two crossbars 27 arranged along the length of the roller conveyor 10. The rear ends of the two crossbars 27 are respectively hinged to the top of the corresponding support arm 23; the front ends of the two crossbars 27 are connected by a steel pusher plate 25. The arrangement of the two crossbars 27 allows the steel pusher plate 25 to extend towards the cold shear 30, so that it is located in the outer area of ​​the cold shear 30 when not pushing steel, and extends into the inner area of ​​the cold shear 30 when pushing steel.

[0031] In one embodiment, the front end of the pusher plate 25 is a vertical surface. This setting ensures that the pusher plate 25 acts like a "wall," pushing all the short steel bars away from the predetermined area from the rear to the front of the roller conveyor 10 at once, preventing any short steel bars from being missed.

[0032] The power mechanism 22 is connected to the through shaft 24 via a crank; one end of the crank is fixedly connected to the through shaft 24, and the other end of the crank is hinged to the output shaft of the power mechanism 22. In this embodiment, the crank is made of steel plate, which is locally sourced and has high strength, thus reducing equipment production costs.

[0033] The two support arms 23 form equal angles with the through shaft 24, and the two support arms 23 are equidistant from both sides of the roller conveyor 10. This design ensures that the pusher frame is located at the center of the roller conveyor and will not shift in the width direction of the roller conveyor 10. At the same time, this arrangement ensures that the two support arms 23 are subjected to uniform force.

[0034] The crossbar 27 is hinged to the support arm 23 via a short shaft. The short shaft design facilitates machining and reduces processing difficulty. Specifically, holes are drilled at corresponding positions on the crossbar 27 and the support arm 23, the short shaft passes through the through holes in both components, and locating pins are installed at both ends of the short shaft for easy disassembly and installation.

[0035] In this embodiment, a PLC interlock is used as the control system, and the power mechanism 22 is a hydraulic cylinder. The hydraulic rod drives the steel pushing device to move to achieve automatic cleaning of short steel. The entire device consists of three parts: PLC operating system, hydraulic system, and steel pushing device.

[0036] Hydraulic system parameters: Volume 1m³ 3 The pressure is 10 Map. The steel structure uses a φ80*2000mm round steel as the through shaft 24, which is fixed above the steel plate foundation below the roller frame by two bearing seats 21. Two 30mm*150mm*1500mm steel plates serve as support arms 23. The support arms 23 and the crossbars 27 are connected by short shafts through holes, and the two lower support arms 23 are welded to the through shaft 24 at a 70° angle. At the same time, a 30mm*1500mm push steel plate is welded between the two crossbars 27 above the angle.

[0037] This utility model also discloses a bar shearing mechanism, including the aforementioned device for cleaning the tail steel of the bar. Specifically, the device for cleaning the tail steel of the bar is installed at the inlet of the cold shear 30.

[0038] The working process of this utility model is as follows:

[0039] After the cold shear 30 has completely cut the steel, the remaining tail steel (short steel) is scrap. The operator presses the interlock button, and the hydraulic system receives a drive command. The solenoid valve controls the power station 40 to drive the hydraulic cylinder; the hydraulic cylinder drives the support arm 23 to rotate via the crank, causing the pusher plate 25 to move forward. Figure 2 As shown in the figure, A is the steel pushing area, A1 is the steel pushing device in the non-steel pushing state, and A2 is the position of the steel pushing device in the steel pushing state.

[0040] When the support arm 23 rotates at a large angle, the crossbar 27 contacts the roller conveyor 10 and eventually becomes parallel to the roller conveyor 10. At the same time, it pushes the short steel forward through the push plate 25 until the short steel is placed in the scrap steel hopper, thus completing the steel pushing operation.

Claims

1. A device for cleaning the tail steel of a bar stock, characterized in that, Includes a through shaft (24) arranged along the width direction of the roller conveyor (10); Both ends of the through shaft (24) are mounted on corresponding bearing seats (21); Support arms (23) are fixedly provided on the through shaft (24) and on both sides of the roller conveyor (10). The support arms (23) are vertically arranged, and a pusher frame is hinged to the top of the two support arms (23). A limit block (26) is provided on at least one support arm (23) and below the pusher frame. The pusher frame is located above the roller conveyor (10). When the support arm (23) rotates with the through shaft (24), the pusher frame falls on the roller conveyor (10) and pushes the short steel on the roller conveyor (10) out of the cold shear (30) area. The through shaft (24) is connected to a power mechanism (22), which is used to drive the through shaft (24) to rotate along its axis.

2. The apparatus for cleaning the tail steel of a bar as described in claim 1, characterized in that, The pusher frame includes two crossbars (27) arranged along the length of the roller conveyor (10), and the rear ends of the two crossbars (27) are respectively hinged to the top of the corresponding support arm (23); The front ends of the two crossbars (27) are connected by a push plate (25).

3. The apparatus for cleaning the tail steel of a bar as described in claim 2, characterized in that, The front end of the push plate (25) is a vertical surface.

4. The apparatus for cleaning the tail steel of a bar as described in claim 2 or 3, characterized in that, The power mechanism (22) is connected to the through shaft (24) via a crank; One end of the crank is fixedly connected to the through shaft (24), and the other end of the crank is hinged to the output shaft of the power mechanism (22).

5. The apparatus for cleaning the tail steel of a bar as described in claim 4, characterized in that, The two support arms (23) form equal angles with the through shaft (24), and the two support arms (23) are equidistant from both sides of the roller conveyor (10).

6. The apparatus for cleaning the tail steel of a bar as described in claim 4, characterized in that, The crossbar (27) is hinged to the arm (23) via a short shaft.

7. A bar shearing mechanism, characterized in that, Includes an apparatus for cleaning the tail steel of a bar as described in any one of claims 1-6.

8. A bar shearing mechanism as described in claim 7, characterized in that, The device for cleaning the tail steel of the bar is installed at the inlet of the cold shear (30).

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