Eight-roller sizing device for steel pipe production

Abstract

The utility model discloses an eight-roller sizing device for steel pipe production, and aims to provide an eight-roller sizing device for steel pipe production, which can reduce sizing errors during steel pipe forming and improve product quality. Comprising two mounting discs which are arranged in parallel, eight groups of sizing rollers which are uniformly arranged are mounted in the mounting discs, the sizing rollers are connected with mounting seats, the mounting seats are slidably connected with the mounting discs, adjusting assemblies are arranged on the outer sides of the mounting seats, the adjusting assemblies are connected with the mounting seats in a matched manner, and the adjusting assemblies are connected with the mounting discs. The sizing device has the beneficial effects that the eight groups of sizing rollers are arranged to perform sizing forming on passing steel pipes, so that the sizing precision is improved; wherein the sizing rollers are mounted on the mounting seats, and the positions of the mounting seats can be adjusted through the adjusting assemblies, so that the eight groups of sizing rollers can form a circle, the precision during sizing forming of the steel pipe is ensured, and the product quality is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe forming, in particular to an eight-roller sizing device for steel pipe production. Background Art

[0002] In the production and processing of steel pipes, the sizing, reducing and tension reducing processes of steel pipes are the continuous binding processes of hollow bodies without mandrels. The purpose of sizing is to roll the steel pipes into certain required dimensional accuracy and roundness under the conditions of a smaller total reduction rate and a smaller single-machine reduction rate, and to further improve the quality of the outer surface of the steel pipe.

[0003] There are many types of existing sizing machines, which can be divided into two-roller, three-roller and four-roller sizing machines according to the number of rollers. Due to the number of rollers, the sizing accuracy of steel pipes is poor during sizing and forming, and the product quality needs to be improved. Utility Model Content

[0004] The utility model aims to overcome the drawback of large diameter sizing error during existing steel pipe forming and provides an eight-roller sizing device for steel pipe production, which can reduce the sizing error during steel pipe forming and improve product quality.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an eight-roller sizing device for steel pipe production, comprising two parallel arranged mounting plates, eight groups of evenly arranged sizing rollers are installed in the mounting plates, the sizing rollers are connected to a mounting seat, the mounting seat is slidably connected to the mounting plate, an adjustment component is arranged on the outside of the mounting seat, the adjustment component is matched and connected to the mounting seat, and the adjustment component is connected to the mounting plate.

[0006] The eight-roller sizing device consists of two parallel mounted disks and eight groups of sizing rollers, wherein the eight groups of sizing rollers are evenly arranged, and at the same time, the arc-shaped surfaces of the eight groups of sizing rollers form a circle, so that the steel pipe passing through them is sized by the sizing rollers. When eight groups of sizing rollers are used for sizing operations, the accuracy of steel pipe sizing and forming can be improved, the sizing error can be reduced, and the product quality can be improved. At the same time, the sizing rollers are installed on the mounting seat, and the mounting seat is slidably connected to the mounting disk. At the same time, an adjustment component is installed on the mounting disk, and the adjustment component is connected to the mounting seat. The position of the mounting seat can be adjusted by the adjustment component, thereby adjusting the position of the sizing rollers, ensuring the accuracy of the sizing operation, ensuring the accuracy of the steel pipe sizing and forming, and ensuring the improvement of product quality.

[0007] Preferably, the inner surface of the mounting plate is provided with a guide groove, the mounting seat comprises two mounting plates arranged in parallel and a connecting block disposed between the two mounting plates, the end surface of the mounting plate is embedded in the guide groove, the sizing roller is installed between the two mounting plates, and the connecting block is connected to the adjustment assembly. The provided guide groove is connected with the mounting plate of the mounting seat to achieve a guiding connection, thereby ensuring the adjustment accuracy of the mounting seat during adjustment and ensuring convenient adjustment operation.

[0008] Preferably, the sizing roller is sleeved with a connecting shaft, and the connecting shaft is placed between the two mounting plates and connected to the mounting plates. A bearing is installed at the center of the sizing roller, and the bearing is sleeved with a connecting shaft, wherein the connecting shaft is installed between the two mounting plates, and plays a role in fixing the sizing roller, thereby ensuring the stability of the sizing roller during sizing forming.

[0009] Preferably, the adjustment assembly includes a fixing plate, a threaded hole is provided in the middle of the fixing plate, an adjustment screw is sleeved in the threaded hole, and one end of the adjustment screw is connected to the connection block. The adjustment assembly consists of a fixing plate and an adjustment screw, wherein the fixing plate is fixed on the mounting plate, a threaded hole is provided in the middle of the fixing plate, the adjustment screw is installed in the threaded hole, and the end of the adjustment screw is connected to the connection block. By rotating the adjustment screw, the mounting seat can be adjusted, and then the sizing roller can be adjusted, so as to ensure the accuracy of the steel pipe sizing forming and improve the product quality.

[0010] Preferably, the mounting plate is connected to the fixing plate by bolts, and the fixing plate is fixed to the mounting plate by bolts, which is convenient for installation.

[0011] Preferably, the outer side surface of the end of the mounting plate is provided with a sloping surface. The sloping surface provided on the outer side of the end of the mounting plate can provide adjustment space for the mounting seat, facilitate the adjustment of the mounting seat, and make the adjustment operation convenient.

[0012] Preferably, the side wall at one end of the connection block is provided with an arc-shaped clearance groove, and the side wall at the other end of the connection block is provided with a connection groove, the cross-sectional shape of the connection groove is T-shaped, and the end of the adjustment screw is connected with a clamping block, and the clamping block is embedded in the connection groove. The inner side wall of the connection block is provided with a clearance groove, and the clearance groove provides a rotation space for the sizing roller. The connection groove is provided with a T-shaped cross-sectional groove, and the clamping block connected to the end of the adjustment screw is embedded in the connection groove to complete the connection, which is convenient for installation and connection, and ensures the reliability of adjustment.

[0013] The beneficial effects of the utility model are as follows: by setting eight groups of sizing rollers, the steel pipe passing through is sizing-formed, thereby improving the sizing accuracy; wherein the sizing rollers are installed on a mounting seat, and the mounting seat can be adjusted in position by an adjustment component, so that the eight groups of sizing rollers can form a circle, thereby ensuring the accuracy during the sizing of the steel pipe and ensuring the product quality; wherein a guide groove is provided on the mounting plate, and the guide groove and the mounting seat can slide when adjusting, and the guide groove plays a guiding role in the adjustment, thereby ensuring convenient adjustment and adjustment accuracy; the adjustment component is composed of a fixed plate and an adjusting screw, and the fixed plate is fixed to the mounting plate by bolts, thereby realizing convenient assembly, and the adjusting screw is installed in the threaded hole of the fixed plate, and the sizing roller can be adjusted by rotating the adjusting screw, thereby making the adjustment operation convenient and simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional view of the utility model;

[0015] Figure 2 It is a cross-sectional view of the utility model;

[0016] Figure 3 This is the front view of the installation plate of the utility model;

[0017] Figure 4 yes Figure 2 Enlarged view at A in the middle;

[0018] Figure 5 It is a three-dimensional view of the mounting seat and the adjustment component of the utility model.

[0019] In the accompanying drawings,

[0020] 1. Mounting plate, 2. Sizing roller, 3. Mounting seat, 4. Adjustment assembly, 10. Guide groove, 20. Connecting shaft, 30. Mounting plate, 31. Connecting block, 32. Make way slope, 33. Make way groove, 34. Connecting groove, 40. Fixing plate, 41. Threaded hole, 42. Adjustment screw, 43. Block. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0022] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0023] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0024] Embodiment 1, as Figure 1-5As shown, an eight-roller sizing device for steel pipe production includes two parallel arranged mounting plates 1, eight groups of evenly arranged sizing rollers 2 are installed in the mounting plates 1, the sizing rollers 2 are connected to mounting seats 3, the mounting seats 3 are slidably connected to the mounting plates 1, an adjustment component 4 is arranged on the outer side of the mounting seats 3, the adjustment component 4 is matched and connected to the mounting seats 3, and the adjustment component 4 is connected to the mounting plates 1.

[0025] A guide groove 10 is provided on the inner surface of the mounting plate 1, and the mounting seat 3 includes two parallel mounted plates 30 and a connecting block 31 placed between the two mounting plates 30, the end faces of the mounting plates 30 are embedded in the guide groove 10, the sizing roller 2 is installed between the two mounting plates 30, and the connecting block 31 is connected to the adjustment component 4.

[0026] The sizing roller 2 is sleeved with a connecting shaft 20 , and the connecting shaft 20 is placed between two mounting plates 30 and connected to the mounting plates 30 .

[0027] The adjustment assembly 4 includes a fixing plate 40 , a threaded hole 41 is provided in the middle of the fixing plate 40 , an adjustment screw 42 is sleeved in the threaded hole 41 , and one end of the adjustment screw 42 is connected to the connection block 31 .

[0028] The mounting plate 1 is connected to the fixing plate 40 by bolts.

[0029] The outer side surface of the end of the mounting plate 30 is provided with a relief slope 32 .

[0030] An arc-shaped clearance groove 33 is provided on the side wall of one end of the connecting block 31, and a connecting groove 34 is provided on the side wall of the other end of the connecting block 31. The cross-sectional shape of the connecting groove 34 is T-shaped. The end of the adjusting screw 42 is connected to a clamping block 43, and the clamping block 43 is embedded in the connecting groove 34.

[0031] The working principle of the utility model is as follows: Figure 1-5 As shown, two parallel mounting plates 1 are connected by bolts, wherein eight groups of guide grooves 10 for guiding are arranged on the inner surface of the mounting plates 1, and eight groups of mounting seats 3 for mounting sizing rollers 2 are arranged between the two mounting plates 1, and the mounting seats 3 are composed of two parallel mounting plates 30 and a connecting block 31, wherein the connecting block 31 is placed between the two mounting plates 30 and close to one end of the mounting plates 30. The mounting plate 30 is embedded in the guide groove 10. A connecting shaft 20 is arranged between the two mounting plates 30, and a sizing roller 2 is sleeved on the connecting shaft 20. At the same time, a bearing is arranged between the sizing roller 2 and the connecting shaft 20 to ensure stable connection and support. The eight groups of sizing rollers 2 can form a circle. When the steel pipe is sizing and forming, the steel pipe passes through the eight groups of sizing rollers 2, and the sizing rollers 2 are used to adjust and sizing the steel pipe.

[0032] The adjustment assembly 4 installed on the mounting plate 1 is composed of a fixing plate 40 and an adjusting screw 42, wherein the fixing plate 40 is fixed to the mounting plate 1 by bolts, a threaded hole 41 is provided on the fixing plate 40, and the adjusting bolt is installed in the threaded hole 41, wherein one end of the adjusting bolt is an adjustment end for convenient adjustment by a wrench, and the other end is connected to the connecting block 31. Among them, a clearance groove 33 is provided at one end of the connecting block 31, and the clearance groove 33 provides a rotation space for the sizing roller 2. A connecting groove 34 is provided on the other end surface. The cross-section of the connecting groove 34 is T-shaped. A clamping block 43 is provided at one end of the adjusting bolt. The clamping block 43 is a T-shaped block. The clamping block 43 is embedded in the connecting groove 34, so that the mounting seat 3 can be pushed to move when the adjusting bolt is rotated, thereby adjusting the position of the sizing roller 2. By adjusting the position of the sizing roller 2, it can be ensured that the eight groups of sizing rollers 2 can form a circle, and it is ensured that when the steel pipe passes through the eight groups of sizing rollers 2, the sizing rollers 2 complete the sizing forming, thereby ensuring the roundness of the steel pipe after sizing forming.

[0033] At the same time, a sloping surface 32 is provided on the outer side surface of the end of the mounting plate 30, and the sloping surface 32 can facilitate the adjustment of the mounting seat 3, ensure the accurate position of the sizing roller 2, and ensure the accuracy of sizing forming.

[0034] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An eight-roller sizing device for steel pipe production, characterized in that: The invention comprises two parallelly arranged mounting plates (1), wherein eight groups of uniformly arranged sizing rollers (2) are installed in the mounting plates (1), the sizing rollers (2) are connected to mounting seats (3), the mounting seats (3) are slidably connected to the mounting plates (1), an adjustment component (4) is arranged outside the mounting seats (3), the adjustment component (4) is matched and connected to the mounting seats (3), and the adjustment component (4) is connected to the mounting plates (1).

2. The eight-roller sizing device for steel pipe production according to claim 1 is characterized in that: The inner surface of the mounting plate (1) is provided with a guide groove (10); the mounting seat (3) comprises two mounting plates (30) arranged in parallel and a connecting block (31) disposed between the two mounting plates (30); the end surface of the mounting plate (30) is embedded in the guide groove (10); the sizing roller (2) is mounted between the two mounting plates (30); and the connecting block (31) is connected to the adjustment assembly (4).

3. The eight-roller sizing device for steel pipe production according to claim 2 is characterized in that: The sizing roller (2) is sleeved with a connecting shaft (20), and the connecting shaft (20) is placed between two mounting plates (30) and connected to the mounting plates (30).

4. The eight-roller sizing device for steel pipe production according to claim 2 is characterized in that: The adjustment assembly (4) comprises a fixing plate (40), a threaded hole (41) is provided in the middle of the fixing plate (40), an adjustment screw rod (42) is sleeved in the threaded hole (41), and one end of the adjustment screw rod (42) is connected to the connection block (31).

5. The eight-roller sizing device for steel pipe production according to claim 4 is characterized in that: The mounting plate (1) is connected to the fixing plate (40) via bolts.

6. The eight-roller sizing device for steel pipe production according to claim 2 is characterized in that: The outer side surface of the end of the mounting plate (30) is provided with a relief slope (32).

7. The eight-roller sizing device for steel pipe production according to claim 4 is characterized in that: A side wall at one end of the connection block (31) is provided with an arc-shaped clearance groove (33), and a side wall at the other end of the connection block (31) is provided with a connection groove (34), the cross-sectional shape of the connection groove (34) is T-shaped, and a clamping block (43) is connected to the end of the adjustment screw rod (42), and the clamping block (43) is embedded in the connection groove (34).

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