Pre-finish rolling outlet sliding guide and guard set of high-speed wire rod rolling mill

Abstract

The utility model relates to the technical field of sliding guide sets, and discloses a high-speed wire rod rolling mill pre-finish rolling outlet sliding guide set which comprises a lower sliding guide piece and an upper sliding guide piece, and guide grooves are formed in the opposite sides of the lower sliding guide piece and the upper sliding guide piece. The inner portion of the front end of the outlet sliding guide and guard set is designed to be in an arc shape with the smooth edge, and the specific size of the arc shape length and the specific size of the opening degree are determined according to the boundary dimension of an outlet rolled piece. The problems that when an existing high-speed wire rod rolling mill pre-finish rolling outlet sliding guide and guard set is used, a wire rod blank easily slides out, and the limiting and protecting performance of the sliding guide and guard set on the wire rod is limited are solved, and the situation that the outlet guide and guard set retreats from a guide and guard box due to overlarge impact load can be effectively avoided; and the impact damage of the steel heaping rolled piece to the whole guide base, the roll collar, the roll collar cooling water pipe and the like is reduced.

Description

Technical Field

[0001] The present utility model application relates to the technical field of sliding guide assemblies, and specifically to a sliding guide assembly at the outlet of the pre-finishing mill of a high-speed wire rod mill. Background Art

[0002] High-speed wire rods refer to wire-shaped steel products rolled by high-speed rolling mills. The main function of the pre-finishing mill unit is to initially shape the billets from the rough and medium rolling mills, so as to provide high-speed wire rod billets with qualified shapes for the finishing mill unit. When problems such as uneven temperature of the incoming rolled pieces, large elbows of the incoming rolled pieces, incorrect rolling line of the pre-finishing mill unit, and uneven wear of the pre-finishing roll rings occur, it is difficult to control the shape and size of the head of the rolled piece, and the impact and wear of the rolled piece on the outlet sliding guide assembly are relatively large. It is necessary to ensure reliable connection and fastening between the outlet sliding guide assembly and the guide base.

[0003] Since the shape structure of the internal rolling channel of the outlet sliding guide assembly and the fixing method between the outlet sliding guide assemblies are the key influencing factors for the reliable connection between the outlet sliding guide assembly and the guide box, when the connection between the outlet sliding guide assembly and the guide box and the fastening force of the outlet sliding guide assembly are too small, and when the rough and medium rolling rolled pieces impact the outlet sliding guide assembly due to elbows or other reasons and cause the outlet sliding guide assembly to withdraw, it will cause damage to the overall guide box or the outlet rotating body and the guide support base, resulting in the expansion of the accident. Summary of the Invention

[0004] In order to solve the problems that the wire rod billets are prone to slipping out during the use of the existing sliding guide assembly at the outlet of the pre-finishing mill of a high-speed wire rod mill and the sliding guide assembly has limited performance in limiting and protecting the wire rod, the present utility model provides a sliding guide assembly at the outlet of the pre-finishing mill of a high-speed wire rod mill to solve the above problems.

[0005] To achieve the above object, the present utility model provides the following technical solutions:

[0006] A sliding guide assembly at the outlet of the pre-finishing mill of a high-speed wire rod mill includes a lower sliding guide plate and an upper sliding guide plate. Guide grooves are provided on the opposite sides of the lower sliding guide plate and the upper sliding guide plate. Fixed side plates are fixed to the middle parts of the front and rear sides of the upper sliding guide plate facing the lower sliding guide plate. Fixed side grooves matching the fixed side plates are provided on the middle parts of the front and rear sides of the upper sliding guide plate facing the lower sliding guide plate. Limiting components are provided at both ends of the opposite sides of the lower sliding guide plate and the upper sliding guide plate.

[0007] Further, the edges at both ends of the inner guide grooves of the lower sliding guide plate and the upper sliding guide plate are set to be arc-shaped, and the guide grooves are set to be arc-shaped matching the billet. The lower sliding guide plate, the upper sliding guide plate, the fixed side plates, and the fixed side grooves are all made of cast iron or cast steel.

[0008] Further, on the inner bottom surface of each of the fixed side grooves, limiting bumps are symmetrically fixed, and on the bottom of each of the fixed side plates, limiting card slots adapted to the limiting bumps are symmetrically formed.

[0009] Further, the limiting assembly includes fixed sleeves, support sleeves, connecting rods and limiting insertion rods. On the front and rear ends of the lower sliding guide plate close to the upper sliding guide plate side, fixed sleeves are fixed, and on the lower sliding guide plate on the side of each fixed sleeve, support sleeves are fixed. Inside each support sleeve, a limiting slider is slidably sleeved, and one end of each limiting slider is fixed with a connecting rod. The ends of the connecting rods extending outside the support sleeves are all fixed with pulling plates, and on the upper parts of the pulling plates, limiting insertion rods are fixed. Each of the limiting insertion rods is inserted into the fixed sleeve.

[0010] Further, the height of each of the limiting sliders is greater than the height of the connecting rod, and the distance between each of the fixed sleeve and the support sleeve and the side surfaces of the lower sliding guide plate and the upper sliding guide plate is equal to the thickness of the pulling plate.

[0011] Further, on the middle of one side of each of the pulling plates facing the support sleeve and the fixed sleeve, an auxiliary pulling groove is formed, and the length of each of the connecting rods is less than the length of the limiting insertion rod.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. In the present utility model, the front end inside the outlet sliding guide assembly is designed as an arc with a smooth edge, and the length and opening degree of the arc are determined according to the outer dimension of the outlet rolled piece, solving the problems that in the prior art, the wire blank is prone to slipping out during the use of the outlet sliding guide assembly of the high-speed wire rod mill pre-finishing mill, and the limiting and protecting performance of the sliding guide assembly for the wire is limited. It can effectively avoid the outlet guide assembly being flushed out of the guide box due to excessive impact load, and reduce the impact damage of the stacked steel rolled piece on the overall guide base, roll ring, roll ring cooling water pipe, etc.

[0014] 2. In the present utility model, by inserting the limiting insertion rod into the fixed sleeve, the lower sliding guide plate and the upper sliding guide plate are limited, which is convenient for the fixed assembly of the upper and lower sliding guide plates, thereby facilitating the limiting of the wire blank, and the design of being convenient for disassembly facilitates the opening of the upper and lower sliding guide plates, improving the convenience of maintaining the sliding guide assembly, and at the same time ensuring the stability during guiding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a front view schematic diagram of the structure of a sliding guide set according to an embodiment of the present application;

[0017] Figure 2 is Figure 1 A front view schematic diagram of the structure of the sliding guide set after it is opened in the shown embodiment;

[0018] Figure 3 is Figure 1 A bottom view schematic diagram of the structure of the sliding guide set after it is opened in the shown embodiment;

[0019] Figure 4 is Figure 1 A front view schematic diagram of the structure of the fixed component in the shown embodiment.

[0020] The meanings of the reference numerals in the figure: 1, lower sliding guide plate; 2, upper sliding guide plate; 3, guide groove; 4, fixed side plate; 5, fixed side groove; 6, limit convex block; 7, limit card slot; 8, fixed sleeve; 9, support sleeve; 10, limit slider; 11, connecting rod; 12, pulling plate; 13, limit insertion rod; 14, spring. Specific embodiments

[0021] To make the application purpose, features, and advantages of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the embodiments described below are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0022] Referring to Figure 1 、 Figure 2 and Figure 3 , a sliding guide set at the outlet of the pre-finishing mill of a high-speed wire rod mill includes a lower sliding guide plate 1 and an upper sliding guide plate 2. Guide grooves 3 are provided on the opposite sides of the lower sliding guide plate 1 and the upper sliding guide plate 2. The edges at both ends of the guide grooves 3 in the lower sliding guide plate 1 and the upper sliding guide plate 2 are both arc-shaped, and the guide grooves 3 are arranged in an arc shape matching the billet. The lower sliding guide plate 1, the upper sliding guide plate 2, the fixed side plate 4, and the fixed side groove 5 are all made of cast iron or cast steel. Fixed side plates 4 are fixed in the middle of the front and rear sides of the upper sliding guide plate 2 facing the lower sliding guide plate 1. Fixed side grooves 5 matching the fixed side plates 4 are provided in the middle of the front and rear sides of the upper sliding guide plate 2 facing the lower sliding guide plate 1. Limit convex blocks 6 are symmetrically fixed on the inner bottom surface of each fixed side groove 5. Limit card slots 7 matching the limit convex blocks 6 are symmetrically provided at the bottom of each fixed side plate 4. Limit components are provided at both ends of the opposite sides of the lower sliding guide plate 1 and the upper sliding guide plate 2.

[0023] Specifically, when it is necessary to guide the wire blank, the upper sliding guide piece 2 and the lower sliding guide piece 1 are arranged oppositely, so that the fixed side plate 4 is inserted into the fixed side groove 5, and at the same time, the limiting convex block 6 is inserted into the limiting card slot 7, so as to limit the lower sliding guide piece 1 and the upper sliding guide piece 2, thereby wrapping the wire, which is convenient for guiding the wire blank.

[0024] As an optimized solution, as Figure 3 and Figure 4 shown, the limiting component includes a fixed sleeve 8, a support sleeve 9, a connecting rod 11 and a limiting insertion rod 13. Fixed sleeves 8 are fixed at both ends of the front and rear sides of the lower sliding guide piece 1 close to the upper sliding guide piece 2, and support sleeves 9 are fixed on the lower sliding guide piece 1 on the side of the fixed sleeve 8. A limiting slider 10 is slidably sleeved inside each support sleeve 9. The height of each limiting slider 10 is greater than the height of the connecting rod 11. The distance between each fixed sleeve 8 and the support sleeve 9 to the side surfaces of the lower sliding guide piece 1 and the upper sliding guide piece 2 is equal to the thickness of the pulling plate 12. One end of each limiting slider 10 is fixed with a connecting rod 11, and the end of the connecting rod 11 extending outside the support sleeve 9 is fixed with a pulling plate 12. An auxiliary pulling groove is formed in the middle of one side of each pulling plate 12 facing the support sleeve 9 and the fixed sleeve 8. The length of each connecting rod 11 is less than the length of the limiting insertion rod 13, and a limiting insertion rod 13 is fixed on the upper part of the pulling plate 12. Each limiting insertion rod 13 is inserted into the fixed sleeve 8.

[0025] Specifically, when the lower sliding guide piece 1 and the upper sliding guide piece 2 are installed, the pulling plate 12 is pulled to drive the connecting rod 11 and the limiting slider 10 to move by compressing the spring 14, so that the limiting insertion rod 13 can be moved to be misaligned with the support sleeve 9. After the lower sliding guide piece 1 and the upper sliding guide piece 2 are aligned and engaged, the pulling plate 12 is released. Under the push of the spring 14, the limiting insertion rod 13 is inserted into the fixed sleeve 8 to limit the lower sliding guide piece 1 and the upper sliding guide piece 2, and thus the lower sliding guide piece 1 and the upper sliding guide piece 2 can be fixed.

[0026] For those skilled in the art, it is obvious that this application is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of this application, this application can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of this application is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in this application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0027] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present application.

Claims

1. A sliding guide assembly for a high-speed wire rod mill pre-finishing rolling outlet, characterized in that: The invention comprises a lower sliding guide plate (1) and an upper sliding guide plate (2), wherein the lower sliding guide plate (1) and the upper sliding guide plate (2) are provided with guide grooves (3) on opposite sides thereof, and the upper sliding guide plate (2) is provided with fixed side plates (4) fixed to the middle of the front and rear sides thereof facing the lower sliding guide plate (1), and the upper sliding guide plate (2) is provided with fixed side grooves (5) matched with the fixed side plates (4) on the middle of the front and rear sides thereof facing the lower sliding guide plate (1), and both ends of the opposite sides of the lower sliding guide plate (1) and the upper sliding guide plate (2) are provided with limiter components.

2. The sliding guide assembly for the pre-finishing exit of a high-speed wire rod rolling mill according to claim 1, characterized in that: The edges at both ends of the guide groove (3) in the lower sliding guide plate (1) and the upper sliding guide plate (2) are both arranged in an arc shape, and the guide groove (3) is arranged in an arc shape that matches the blank. The lower sliding guide plate (1), the upper sliding guide plate (2), the fixed side plate (4) and the fixed side groove (5) are all made of cast iron or cast steel.

3. The sliding guide assembly for the pre-finishing exit of a high-speed wire rod rolling mill according to claim 1, characterized in that: A limiting protrusion (6) is symmetrically fixed to the inner bottom surface of each fixed side groove (5), and a limiting slot (7) cooperating with the limiting protrusion (6) is symmetrically opened at the bottom of each fixed side plate (4).

4. The sliding guide assembly for the pre-finishing exit of a high-speed wire rod rolling mill according to claim 1, characterized in that: The limit assembly comprises a fixing sleeve (8), a supporting sleeve (9), a connecting rod (11) and a limit plug rod (13); the fixing sleeve (8) is fixed to both ends of the front and rear sides of the lower sliding guide plate (1) close to the upper sliding guide plate (2); and the supporting sleeve (9) is fixed to the lower sliding guide plate (1) on the side of the fixing sleeve (8); each of the support sleeves (9) is slidably sleeved with a limit slider (10) inside, and a connecting rod (11) is fixed to one end of the limit slider (10); a pulling plate (12) is fixed to one end of the connecting rod (11) extending outside the support sleeve (9), and a limit plug rod (13) is fixed to the upper part of the pulling plate (12); and each of the limit plug rods (13) is inserted into the fixing sleeve (8).

5. The sliding guide assembly for the pre-finishing exit of a high-speed wire rod rolling mill according to claim 4, characterized in that: The height of each of the limit sliding blocks (10) is greater than the height of the connecting rod (11), and the distance between each of the fixing sleeves (8) and the supporting sleeve (9) and the side surfaces of the lower sliding guide plate (1) and the upper sliding guide plate (2) is equal to the thickness of the pulling plate (12).

6. The sliding guide assembly for the pre-finishing exit of a high-speed wire rod rolling mill according to claim 4, characterized in that: Each of the pulling plates (12) is provided with an auxiliary pulling groove in the middle of one side facing the supporting sleeve (9) and the fixing sleeve (8), and the length of each of the connecting rods (11) is smaller than the length of the limiting plug rod (13).

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