Side movable loop inlet empty passing pipe of high-speed wire rod rolling mill

Abstract

The utility model discloses a high-speed wire rod rolling mill side movable loop inlet air passing pipe, which relates to the technical field of ferrous metallurgy high-speed wire rod rolling mills, and comprises an air passing guide pipe and an eccentric wheel, the air passing guide pipe is arranged between a shear body and a measuring sleeve body of a high-speed wire rod rolling mill, so that a rolled piece penetrates through the air passing guide pipe to enter the measuring sleeve body; a side pushing hole is formed in the bottom of the empty guide pipe; the side pushing device has the advantages that the structure is simple, the trend of the head of a rolled piece is effectively guided, and the tail of the rolled piece is effectively prevented from being drifted.

Description

Technical Field

[0001] The utility model relates to the technical field of high-speed wire rod rolling mills in iron and steel metallurgy, and particularly relates to a bypass pipe at the inlet of the side live loop of a high-speed wire rod rolling mill. Background Art

[0002] The design of the inlet of the 2# side loop of the Morgan V high-speed wire rod rolling mill is a set of mechanisms with a cylinder clamping device. The purpose is to send a control signal to command the cylinder to move when the detection signal detects that the red billet leaves the outlet of the 18th stand of the pre-finishing mill, and clamp the rolled piece through the three-roll clamping device to prevent tail whipping. The disadvantages are as follows: 1. The mechanism is complex and difficult to maintain. 2. It is difficult to synchronize the signal controller and the mechanical cylinder control, and the action often occurs in advance or behind, resulting in steel piling accidents. According to statistics, there are up to 15 steel piling accidents in this area every year. There is an urgent need to design and use a bypass pipe at the inlet of the side live loop of a high-speed wire rod rolling mill to solve the above problems. Content of the Utility Model

[0003] The purpose of the utility model is to provide a bypass pipe at the inlet of the side live loop of a high-speed wire rod rolling mill to solve the problems existing in the above-mentioned prior art, with a simple structure, which can effectively guide the head of the rolled piece and prevent the tail from whipping.

[0004] To achieve the above purpose, the utility model provides the following scheme:

[0005] The utility model provides a bypass pipe at the inlet of the side live loop of a high-speed wire rod rolling mill, including: a bypass conduit and an eccentric wheel. The bypass conduit is arranged between the shear body and the measuring loop body of the high-speed wire rod rolling mill so that the rolled piece passes through the bypass conduit and enters the measuring loop body. A side push hole is arranged at the bottom of the bypass conduit; the top of the eccentric wheel extends into the side push hole and is higher than the bottom wall of the bypass conduit.

[0006] Preferably, one end of the bypass conduit close to the shear body is of a flared structure.

[0007] Preferably, the distance between the bypass conduit and the shear body is 25 mm, and the distance between the bypass conduit and the measuring loop body is 20 mm.

[0008] Preferably, the inner diameter of the bypass conduit is 30 mm.

[0009] Preferably, the wall thickness of the bypass conduit is 10 mm.

[0010] Preferably, the material of the bypass conduit is 65Mn.

[0011] Preferably, the side push hole is arranged in the middle of the bypass conduit.

[0012] Preferably, the depth of the side push hole is 14 mm.

[0013] Preferably, the top of the eccentric wheel is 2 mm higher than the inner wall of the bottom of the passing-through conduit.

[0014] Preferably, it further includes a fixing plate which is fixedly connected to the top of the passing-through conduit and is used to connect with the high-speed wire rod rolling mill.

[0015] The utility model has achieved the following technical effects compared with the prior art:

[0016] The utility model provides a passing-through pipe at the entrance of the live loop on the side of a high-speed wire rod rolling mill. By arranging a passing-through conduit between the shear body and the measuring sleeve body of the high-speed wire rod rolling mill, the function of guiding the head direction of the rolled piece and preventing the tail from whipping can be realized when the rolled piece passes through the passing-through conduit and enters the measuring sleeve body. In addition, by arranging the top of the eccentric wheel higher than the bottom inner wall of the passing-through conduit, it can ensure that the rolled piece in the conduit basically does not contact the conduit during normal production, thereby improving the service life of the passing-through conduit. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a structural sectional view of the passing-through pipe at the entrance of the live loop on the side of the high-speed wire rod rolling mill provided by the present utility model;

[0019] In the figure: 1. Passing-through conduit; 2. Side pushing hole; 3. Eccentric wheel; 4. Fixing plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model.

[0021] The purpose of the present utility model is to provide a passing-through pipe at the entrance of the live loop on the side of a high-speed wire rod rolling mill to solve the problems existing in the above-mentioned prior art, with a simple structure, effectively guiding the head direction of the rolled piece and preventing the tail from whipping.

[0022] In order to make the above-mentioned objects, features and advantages of the present utility model more obvious and understandable, the present utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0023] The utility model provides a bypass pipe at the entrance of the side live loop of a high-speed wire rod rolling mill. As Figure 1 shown, it includes a bypass conduit 1 and an eccentric wheel 3. The bypass conduit 1 is arranged between the shear body and the measuring sleeve body of the high-speed wire rod rolling mill so that the rolled piece passes through the bypass conduit 1 and enters the measuring sleeve body. A side push hole 2 is arranged at the bottom of the bypass conduit 1; the top of the eccentric wheel 3 extends into the side push hole 2 and is higher than the bottom wall of the bypass conduit 1. By arranging the bypass conduit 1 between the shear body and the measuring sleeve body of the high-speed wire rod rolling mill, the rolled piece passes through the bypass conduit 1 and enters the measuring sleeve body, which can guide the direction of the head of the rolled piece and prevent the tail from whipping. In addition, by arranging the top of the eccentric wheel 3 higher than the inner wall bottom of the bypass conduit 1, it can ensure that the rolled piece in the conduit basically does not contact the conduit during normal production, and improve the service life of the bypass conduit 1.

[0024] In a preferred embodiment, one end of the bypass conduit 1 close to the shear body is of a flared structure, which is beneficial to guiding the rolled piece into the conduit and the side live loop.

[0025] In a preferred embodiment, the distance between the bypass conduit 1 and the shear body is 25 mm, and the distance between the bypass conduit 1 and the measuring sleeve body is 20 mm.

[0026] In a preferred embodiment, the inner diameter of the bypass conduit 1 is 30 mm. Considering that the maximum outer diameter of the rolled piece of the 18-stand red billet type is 25.4 mm, the inner diameter of the designed conduit is 30 mm.

[0027] In a preferred embodiment, the wall thickness of the bypass conduit 1 is 10 mm, which effectively ensures the strength of the bypass conduit 1.

[0028] In a preferred embodiment, the material of the bypass conduit 1 is 65Mn, which has good heat resistance and wear resistance.

[0029] In a preferred embodiment, the side push hole 2 is arranged in the middle of the bypass conduit 1, effectively avoiding the contact between the rolled piece and the inner wall of the bypass conduit 1.

[0030] In a preferred embodiment, the depth of the side push hole 2 is 14 mm. The depth of the side push hole 2 is the wall thickness of the bypass pipe plus 4 mm, and the purpose is to provide adjustment space for the eccentric wheel 3.

[0031] In a preferred embodiment, the top of the eccentric wheel 3 is 2 mm higher than the inner wall at the bottom of the bypass conduit 1, so that the eccentric wheel 3 is 2 mm higher than the inner wall of the conduit, ensuring that the rolled piece in the conduit basically does not contact the conduit during normal production, and improving the service life of the bypass conduit 1.

[0032] In a preferred embodiment, the bypass pipe at the entrance of the side live loop of the high-speed wire rod rolling mill further includes a fixing plate 4. The fixing plate 4 is fixedly connected to the top of the bypass conduit 1, and the fixing plate 4 is used to connect with the high-speed wire rod rolling mill.

[0033] Through the design, manufacture and on-site use of a hollow pipe at the entrance of the live loop on the side of a high-speed wire rod rolling mill, the disadvantages of a set of mechanisms with a cylinder clamping device are solved: 1. The mechanism is complex and difficult to maintain. 2. It is difficult to synchronize signal control and mechanical cylinder control, and the action often occurs in advance or lags behind, resulting in steel piling accidents. The main benefits are: 1. Reducing accidents. 2. Reducing equipment maintenance. 3. Reducing spare parts consumption. 4. Improving the production operation rate of the rolling mill. Calculated by reducing 10 steel piling accidents in this area every year, a total of 120 minutes of accident time and 30 tons of medium-grade waste are saved. Calculated at a production capacity of 1.5 tons per minute, a benefit of 100 yuan per ton, and a price difference of 1,800 yuan between medium-grade waste and finished products, the total direct economic benefit generated each year is: 120×1.5×100 + 30×1,800 = 72,000 yuan. For enterprises that need to use hollow pipes in the entrance area of the 2# side loop of the Morgan V high-speed wire rod rolling mill, this design invention patent has good promotion and application significance.

[0034] In this utility model, specific examples are used to elaborate on the principle and implementation mode of the utility model. The description of the above embodiments is only used to help understand the method and its core idea of the utility model; at the same time, for those of ordinary skill in the art, based on the idea of the utility model, there will be changes in the specific implementation mode and application scope. In summary, the content of this specification should not be construed as a limitation of the utility model.

Claims

1. A high-speed wire rolling mill side live sleeve inlet empty tube, characterized in that: include: An air-through conduit, which is arranged between the shear body and the measuring sleeve body of the high-speed wire rolling mill so that the rolled piece passes through the air-through conduit and enters the measuring sleeve body, and a side push hole is arranged at the bottom of the air-through conduit; and An eccentric wheel, the top of which extends into the side thrust hole and is higher than the bottom wall of the air-through conduit.

2. The high-speed wire rolling mill side live sleeve inlet empty tube according to claim 1, characterized in that: One end of the air-through conduit close to the shear body is a bell-mouth structure.

3. The high-speed wire rolling mill side live sleeve inlet empty tube according to claim 2, characterized in that: The distance between the air-through conduit and the shear body is 25 mm, and the distance between the air-through conduit and the measuring sleeve body is 20 mm.

4. The high-speed wire rolling mill side live sleeve inlet empty tube according to claim 3, characterized in that: The inner diameter of the air-through conduit is 30 mm, and the inner diameter of the large-mouth end of the bell-mouth structure is 110 mm.

5. The high-speed wire rolling mill side live sleeve inlet empty tube according to claim 4, characterized in that: The wall thickness of the air-through conduit is 10 mm.

6. The high-speed wire rolling mill side live sleeve inlet empty tube according to claim 5, characterized in that: The material of the air-through conduit is 65Mn.

7. The high-speed wire rolling mill side live sleeve inlet empty tube according to claim 6, characterized in that: The side push hole is arranged in the middle of the air passage conduit.

8. The high-speed wire rolling mill side live sleeve inlet empty tube according to claim 7, characterized in that: The depth of the side push hole is 14 mm.

9. The high-speed wire rolling mill side live sleeve inlet empty tube according to claim 8, characterized in that: The top of the eccentric wheel is 2 mm higher than the inner wall of the bottom of the air-through conduit.

10. The high-speed wire rolling mill side live sleeve inlet empty tube according to claim 9, characterized in that: It also includes a fixing plate, which is fixedly connected to the top of the air-through conduit, and the fixing plate is used to be connected to the high-speed wire rolling mill.

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