High-speed wire rod breaking device

Abstract

The utility model relates to the technical field of metal rolling equipment, in particular to a high-speed wire rod breaking device. Comprising a shell, a main tool rest, an auxiliary tool rest, a driving mechanism and a hydraulic damper, the shell is arranged on a steel roller way in a sleeving mode, the main tool rest is vertically arranged in the shell, the auxiliary tool rest is slidably connected to the rear side of the main tool rest through an inclined guide rail, and cutting edges are arranged at the ends of the main tool rest and the auxiliary tool rest; the hydraulic damper is arranged between the main tool rest and the shell, the shell is of a box type structure, a through steel roller way is arranged in the shell, the shell is fixedly connected with a steel roller way base through high-strength bolts, the main tool rest is vertically connected to the top of the shell in a sliding mode through a rail, and an inclined guide rail is arranged on the rear side of the main tool rest. The auxiliary tool rest is slidably connected with an inclined guide rail behind the main tool rest; the high-speed wire rod breaking device solves the problems that in the prior art, damage is prone to occurring, stability is low, the effect is poor, maintenance time is long, and efficiency is low.

Description

Technical Field

[0001] This utility model relates to the field of metal rolling equipment technology, specifically to a high-speed wire cutting device. Background Technology

[0002] In the finishing mill area of ​​high-speed wire rod, a shear is installed in front of the finishing mill to prevent steel from entering the finishing mill and causing damage to the equipment in the event of an accident. The high-speed wire rod steel stacking shear plays a role in protecting safe production, preventing flying steel, and protecting the precision equipment in the high-speed area from damage caused by the impact of stacked steel. However, the existing shearing devices generally adopt single-blade vertical impact cutting, which has the following defects: the shearing shears used in the project have poor continuous impact resistance, the concentrated shearing impact force causes the blade holder to deform, and the average service life is less than 3 months; the overall stability is not high enough, there is a lack of physical interception structure, and some steel still flows into the finishing mill after cutting; installation and maintenance are inconvenient, and a single maintenance takes more than 30 minutes.

[0003] Therefore, there is an urgent need to design a high-speed wire breakage device to solve the problems of easy damage, low stability, poor performance, long maintenance time and low efficiency of existing technologies. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a high-speed wire cutting device.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a high-speed wire cutting device, including a housing, a main cutter post, a secondary cutter post, a drive mechanism and a hydraulic damper. The housing is sleeved on the steel roller conveyor. The main cutter post is vertically arranged inside the housing. The secondary cutter post is slidably connected to the rear side of the main cutter post through an inclined guide rail. Both the main cutter post and the secondary cutter post are provided with cutting edges at their ends. The drive mechanism is fixed to the rear of the housing and hinged to the main cutter post. The hydraulic damper is arranged between the main cutter post and the housing.

[0006] Specifically, the shell is a box-type structure, with a through steel roller conveyor inside, and the shell is fixedly connected to the steel roller conveyor base by high-strength bolts.

[0007] Specifically, the main tool holder is vertically slidably connected to the top of the housing via a rail, and an inclined guide rail is provided on the rear side of the main tool holder. The secondary tool holder is slidably connected to the inclined guide rail on the rear side of the main tool holder.

[0008] Specifically, the inclined guide rail is an L-shaped steel rail with an 8° angle, and the secondary tool holder slides with the guide rail through a roller assembly.

[0009] Specifically, the drive mechanism includes a cylinder and a connecting rod. The cylinder is fixed to the rear outer wall of the housing via a flange. One end of the connecting rod is hinged to the piston rod of the cylinder, and the other end of the connecting rod is rigidly connected to the top of the main tool holder.

[0010] Specifically, the upper end of the hydraulic damper is welded to the top of the housing, and the lower end of the hydraulic damper is connected to the main tool holder through a pin. The piston rod of the hydraulic damper extends and retracts freely when the main tool holder moves up and down, and a return spring is provided on the outer sleeve of the hydraulic damper.

[0011] This utility model has the following beneficial effects:

[0012] This invention relates to a high-speed wire cutting device that significantly improves cutting efficiency. The dual-blade time-space misalignment cutting design reduces the cutting time from 1.2 seconds in the traditional single-blade design to 0.5 seconds, increasing efficiency by 58%. The secondary blade's oblique tearing reduces the shearing impact force by 70%, extending blade life to 6 months (compared to 2 months in the traditional solution). The interception reliability has been revolutionaryly improved. The dual guarantee of main blade locking and secondary blade supplementary cutting increases the interception success rate from 85% in the traditional solution to 99.9%. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the high-speed wire cutting device installed on the rescue hoist.

[0014] In the diagram: 1-House; 2-Main tool holder; 3-Secondary tool holder; 4-Drive mechanism; 5-Hydraulic damper; 6-Steel roller conveyor. Detailed Implementation

[0015] The technical solutions of the present utility model will be described in further detail below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0016] Example 1:

[0017] like Figure 1 As shown, a high-speed wire cutting device includes a housing 1, a main cutter post 2, a secondary cutter post 3, a drive mechanism 4, and a hydraulic damper 5. The housing 1 is sleeved on a steel roller conveyor 6. The main cutter post 2 is vertically disposed inside the housing 1. The secondary cutter post 3 is slidably connected to the rear side of the main cutter post 2 via an inclined guide rail. Both the main cutter post 2 and the secondary cutter post 3 are provided with cutting edges at their ends. The drive mechanism 4 is fixed to the rear of the housing 1 and hinged to the main cutter post 2. The hydraulic damper 5 is disposed between the main cutter post 2 and the housing 1.

[0018] The housing 1 acts like a cover over the steel roller conveyor 6 in front of the finishing mill, and the frame of the housing 1 is used to fix the various components.

[0019] The main blade holder 2 is located below the top mounting plate of the housing 1. The bottom of the main blade holder 2 is provided with a blade, which is rigidly connected by a high-strength bolt. The blade is used to cut high-speed wires. The top of the main blade holder 2 is provided with a connecting rod hinge seat, which is connected to the drive mechanism 4 through a pin.

[0020] The secondary blade holder 3 is located on the rear side of the main blade holder 2 via an inclined guide rail. The inclined guide rail forms an 8° angle with the horizontal direction. The roller assembly is fixed to the back of the secondary blade holder 3 via pre-tightening bolts. The front end of the secondary blade holder 3 is provided with a slanted blade, which is fixed by welding. The slanted blade is used to tear the remaining part of the wire.

[0021] The drive mechanism 4 includes a cylinder and a connecting rod. The drive mechanism 4 is used to output shearing power. The cylinder is located on the outer wall of the rear part of the housing 1. The cylinder piston rod is hinged to the main blade holder 2 through the connecting rod.

[0022] The hydraulic damper 5 is located between the main tool holder 2 and the top of the housing 1. A one-way throttle valve is installed in the oil circuit of the hydraulic damper 5. A return spring sleeve is provided on the outside of the hydraulic damper 5. The hydraulic damper 5 is used to absorb 80% of the impact energy, and the return spring is used to provide the return thrust.

[0023] Example 2: Working principle using the structural form of Example 1.

[0024] When a steel pile-up accident occurs in high-speed wire rod, the cylinder of drive mechanism 4 drives the main cutter holder 2 to cut vertically downwards via a connecting rod. The main cutter cuts the main body of the wire rod with high impact force. At the same time, the auxiliary cutter holder 3 is guided by the 8° inclined guide rail behind the main cutter holder 2 and moves obliquely. Its oblique blade tears the remaining part of the wire rod. The time-space misalignment shearing of the main cutter and auxiliary cutter (the main cutter moves first, and the auxiliary cutter lags behind by 0.2 seconds) disperses the concentrated impact force of the traditional single cutter into two actions. Through the oblique tearing of the auxiliary cutter, 70% of the impact force is converted into a lateral component force, significantly reducing the impact on the cutter holder and avoiding deformation. The hydraulic damper 5 absorbs 80% of the vertical impact energy of the main cutter holder 2 through the throttling effect of the internal oil circuit. The return spring pushes the main cutter holder 2 to quickly return to its original position after shearing. The rigid connection between the housing 1 and the steel roller conveyor 6 and the double-blade physical interception design ensure that the wire rod is completely blocked after cutting, preventing residual steel from flowing into the finishing mill.

[0025] This utility model is not limited to the above-described embodiments. Anyone should know that any structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model.

[0026] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-speed wire cutting device, characterized in that, The device includes a housing, a main cutter post, a secondary cutter post, a drive mechanism, and a hydraulic damper. The housing is fitted onto a steel roller conveyor. The main cutter post is vertically disposed inside the housing. The secondary cutter post is slidably connected to the rear side of the main cutter post via an inclined guide rail. Both the main cutter post and the secondary cutter post have cutting edges at their ends. The drive mechanism is fixed to the rear of the housing and hinged to the main cutter post. The hydraulic damper is disposed between the main cutter post and the housing.

2. The high-speed wire cutting device according to claim 1, characterized in that, The shell is a box-type structure, with a through steel roller conveyor inside. The shell is fixedly connected to the steel roller conveyor base by high-strength bolts.

3. The high-speed wire cutting device according to claim 1, characterized in that, The main tool holder is vertically slidably connected to the top of the housing via a rail. An inclined guide rail is provided on the rear side of the main tool holder, and the secondary tool holder is slidably connected to the inclined guide rail on the rear side of the main tool holder.

4. The high-speed wire cutting device according to claim 3, characterized in that, The inclined guide rail is an 8° inclined steel rail, and the secondary tool holder slides with the guide rail through a roller assembly.

5. The high-speed wire cutting device according to claim 1, characterized in that, The drive mechanism includes a cylinder and a connecting rod. The cylinder is fixed to the rear outer wall of the housing via a flange. One end of the connecting rod is hinged to the piston rod of the cylinder, and the other end of the connecting rod is rigidly connected to the top of the main tool holder.

6. The high-speed wire cutting device according to claim 1, characterized in that, The upper end of the hydraulic damper is welded to the top of the housing, and the lower end of the hydraulic damper is connected to the main tool holder through a pin. The piston rod of the hydraulic damper extends and retracts freely when the main tool holder moves up and down. A return spring is provided on the outer sleeve of the hydraulic damper.

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