Cold drawing device for large steel pipe

Abstract

The utility model discloses a cold-drawing device for a large steel pipe, which relates to the field of cold-drawing machines, and comprises three groups of supporting mechanisms and a limiting plate, the supporting mechanisms are arranged on the limiting plate in a sliding manner, the limiting plate is divided into three sections, and the supporting mechanisms are arranged on the limiting plate in a sliding manner. The three sets of supporting mechanisms are arranged on the base and used for limiting the moving paths of the three sets of supporting mechanisms from left to right correspondingly, the first rolling wheel, the second rolling wheel, the third rolling wheel, the first baffle, the second baffle and the third baffle are fixedly connected with the base, and the rolling wheels are installed in the supporting mechanisms, so that friction between the cold-drawn large steel pipe and the supporting mechanisms is reduced; and the limiting plate is matched with the baffle to abut against the arranged supporting mechanism, so that the supporting mechanism can efficiently support the cold-drawn large steel pipe, efficient supporting with smaller friction on the cold-drawn large steel pipe is achieved, the working efficiency is improved, and the service life of the device is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of cold drawing machines, in particular to a cold drawing device for large steel pipes. Background Art

[0002] Cold drawing is a material processing technology. For metal materials, cold drawing refers to drawing the material at room temperature in order to achieve a certain shape and certain mechanical properties. Cold-drawn products have the advantages of high dimensional accuracy and good surface finish compared to hot forming.

[0003] When the existing cold drawing machine supports the large steel pipe after cold drawing, the supporting effect is not good and friction is generated, which still causes damage to the large steel pipe after cold drawing, reduces product quality and reduces work efficiency. Utility Model Content

[0004] In order to solve the above technical problems or at least partially solve the above technical problems, the utility model provides a cold drawing device for large steel pipes, which realizes efficient and less frictional support for the large steel pipes after cold drawing through the cooperation of a supporting mechanism, a roller, a limit plate and a baffle, thereby improving the working efficiency and the service life of the device.

[0005] The utility model provides a cold drawing device for large steel pipes, a support mechanism, the support mechanism comprising a support rod, an electric push rod, a base and a pulley, the support mechanism is provided with three groups, and the support moves with the movement of the large steel pipe after cold drawing, a limit plate, the support mechanism is slidably mounted on the limit plate, the limit plate is divided into three sections, and is respectively used to limit the moving path of the three groups of support mechanisms from left to right, a first roller, a second roller and a third roller, which are mounted on the support rod and roll in contact with the surface of the large steel pipe, and a first baffle, a second baffle and a third baffle are fixedly connected to the base.

[0006] Optionally, a support seat is further included, the limiting plate is installed on the upper end of the support seat, grooves are provided on both sides of the limiting plate, and the supporting mechanism is slidably connected to the support seat.

[0007] Optionally, the upper end of the electric push rod is fixedly connected to the support rod, and the lower end of the electric push rod is fixedly connected to the base. Pulleys are installed on both sides of the base, and a sliding groove is opened inside the support seat, and the pulley is slidably connected to the sliding groove.

[0008] Optionally, the first roller, the second roller and the third roller form a group, and the first roller, the second roller and the third roller are provided in three groups, the first roller is rotatably connected to the lower end of the corresponding support rod, the second roller and the third roller are respectively rotatably connected to the two sides of the corresponding support rod, and the lower ends of the second roller and the third roller are at the same horizontal position as the first roller.

[0009] Optionally, a cold drawing box is installed on one side of the support seat, a drawing car is provided on the side of the cold drawing box for discharging materials, and the support mechanism is located between the support seat and the drawing car.

[0010] Optionally, it also includes a chain conveyor, the driving motor on the chain conveyor is fixedly connected to the support seat, the roller on the chain conveyor is rotatably connected to the support seat, the hook of the pulling car is fixedly connected to the chain on the chain conveyor, and the wheel of the pulling car is located in a groove on the support seat.

[0011] Optionally, a spring rod is fixedly connected to one side of the three bases close to the limit plate segment, and the three spring rods are fixedly connected to the first baffle plate, the second baffle plate and the third baffle plate respectively.

[0012] Optionally, the length of the first baffle is greater than that of the second baffle, and the length of the second baffle is greater than that of the third baffle.

[0013] Optionally, the support mechanism with the first baffle installed is the closest to the cold drawing box, and the support mechanism with the third baffle installed is the farthest from the cold drawing box.

[0014] Optionally, surfaces of the first roller, the second roller and the third roller are coated with a cooling coating.

[0015] Compared with the prior art, the technical solution provided by the embodiment of the utility model has the following advantages: by installing rollers in the support mechanism, the friction between the large steel pipe after cold drawing and the support mechanism is reduced, and the support mechanism is supported by the limit plate and the baffle plate, so that the support mechanism can efficiently support the large steel pipe after cold drawing, thereby achieving efficient and less frictional support for the large steel pipe after cold drawing, and improving work efficiency and the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0017] In order to more clearly illustrate the implementation mode of the utility model or the technical solution in the prior art, the drawings required for use in the implementation mode or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic structural diagram of a cold drawing device for a large steel pipe according to the utility model;

[0019] Figure 2 for Figure 1 A schematic diagram of the structure of the support seat shown in ;

[0020] Figure 3 for Figure 1 The structural schematic diagram of the limiting plate shown in ;

[0021] Figure 4 for Figure 1 A schematic diagram of the structure of the support mechanism shown in ;

[0022] Figure 5 for Figure 1 A schematic structural diagram of the side of the support mechanism shown in FIG.

[0023] Description of Reference Numerals

[0024] 1. Cold drawing box; 2. Support mechanism; 21. Support rod; 22. Electric push rod; 23. Base; 24. Pulley; 3. Drawing car; 4. Support seat; 41. Groove; 42. Limit plate; 5. Chain conveyor belt; 6. Spring rod; 7. First baffle; 8. Second baffle; 9. Third baffle; 10. First roller 11. Second roller; 12. Third roller. DETAILED DESCRIPTION

[0025] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the scheme of the utility model will be further described below. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0026] The following description sets forth many specific details to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the implementation methods in the specification are only part of the implementation methods of the present invention, rather than all of the implementation methods.

[0027] Combination Figures 1 to 5 As shown, the cold drawing device for large steel pipes provided by the embodiment of the utility model includes a support mechanism 2, and the support mechanism 2 includes a support rod 21, an electric push rod 22, a base 23 and a pulley 24. The support mechanism 2 is provided with three groups, which are supported to move with the movement of the large steel pipe after cold drawing, a limit plate 42, and the support mechanism 2 is slidably installed on the limit plate 42. The limit plate 42 is divided into three sections, which are respectively used to limit the moving path of the three groups of support mechanisms 2 from left to right, a first roller 10, a second roller 11 and a third roller 12, which are installed on the support rod 21 and roll in contact with the surface of the large steel pipe, a first baffle 7, a second baffle 8 and a third baffle 9, which are fixedly connected to the base 23.

[0028] Therefore, by installing rollers in the supporting mechanism, the friction between the large steel pipe after cold drawing and the supporting mechanism is reduced, and the supporting mechanism is supported by the limit plate and the baffle plate, so that the supporting mechanism can efficiently support the large steel pipe after cold drawing, thereby achieving efficient and less frictional support for the large steel pipe after cold drawing, thereby improving work efficiency and the service life of the device.

[0029] The supporting base 4 is also included. A limiting plate 42 is installed on the upper end of the supporting base 4. Grooves 41 are provided on both sides of the limiting plate 42. The supporting mechanism 2 is slidably connected to the supporting base 42.

[0030] In some embodiments, Figure 1 and Figure 4 As shown, the upper end of the electric push rod 22 is fixedly connected to the support rod 21, and the lower end of the electric push rod 22 is fixedly connected to the base 23. Pulleys 24 are installed on both sides of the base 23. A slide groove is opened inside the support seat 4, and the pulley 24 is slidably connected to the slide groove.

[0031] Therefore, when the steel pipe is cold drawn, the electric push rod 22 is started to move the support rod 21 up and down, so that the support rod 21 fits the steel pipe, and drives the base 23 to move in the slide groove in the support seat 4 through the pulley 24.

[0032] In some embodiments, Figure 4 As shown, the first roller 10, the second roller 11 and the third roller 12 are a group, and the first roller 10, the second roller 11 and the third roller 12 are provided with three groups, the first roller 10 is rotatably connected to the lower end of the corresponding support rod 21, the second roller 11 and the third roller 12 are rotatably connected to the two sides of the corresponding support rod 21 respectively, and the lower ends of the second roller 11 and the third roller 12 are at the same horizontal position as the first roller 10.

[0033] Thus, by installing rollers on both sides and the lower end of the support rod 21, the friction between the support rod 21 and the surface of the steel pipe is reduced.

[0034] Among them, the surfaces of the first roller 10, the second roller 11 and the third roller 12 are coated with a cooling coating. When the steel pipe moves and drives the rollers to roll, the cooling coating on the surface can dissipate heat for the cold-drawn steel pipe, further improving the quality of the product.

[0035] In some embodiments, Figure 4 and Figure 5 As shown, a spring rod 6 is fixedly connected to one side of the three bases 23 close to the limit plate 42 segment, and the three spring rods 6 are fixedly connected to the first baffle plate 7, the second baffle plate 8 and the third baffle plate 9 respectively.

[0036] Among them, the length of the first baffle 7 is greater than the second baffle 8, the length of the second baffle 8 is greater than the third baffle 9, the support mechanism 2 installed with the first baffle 7 is the closest to the cold drawing box 1, and the support mechanism 2 installed with the third baffle 9 is the farthest from the cold drawing box 1.

[0037] Therefore, when the drawing vehicle 3 cold-draws the steel pipe, it fits into the support mechanism 2, thereby driving the baffle to move. When the baffle moves to the position corresponding to the limit plate, the baffle stops moving, and the support mechanism 2 connected to the baffle also stops moving. The spring connection can reduce the impact force generated when the support mechanism 2 stops moving, thereby increasing the service life of the support mechanism 2. The three support mechanisms 2 provide support as the steel pipe moves, thereby providing stable support for large steel pipes after cold drawing.

[0038] In some embodiments, Figure 1 As shown, a cold drawing box 1 is installed on one side of the support seat 4 , a drawing vehicle 3 is provided on the discharge side of the cold drawing box 1 , and the support mechanism 2 is located between the support seat 4 and the drawing vehicle 3 .

[0039] It also includes a chain conveyor 5, which is rotatably connected to the support seat 4, a hook of the drawing vehicle 3 is fixedly connected to the chain conveyor 5, and a wheel of the drawing vehicle 3 is located in a groove 41 on the support seat 4.

[0040] Therefore, when the drawing vehicle 3 is firmly connected to the large steel pipe, the chain conveyor 5 is started to drive the drawing vehicle 3 to move, so that the large steel pipe passes through the cold drawing box 1 to complete the cold drawing.

[0041] The following is combined with Figure 1-5 Describe a specific embodiment of the utility model:

[0042] like Figure 1-Figure 5 As shown, the support mechanism 2 includes a support rod 21, an electric push rod 22, a base 23 and a pulley 24. The support mechanism 2 is provided with three groups, which move with the movement of the large steel pipe after cold drawing. The support mechanism 2 is slidably mounted on the limit plate 42. The limit plate 42 is divided into three sections, which are respectively used to limit the moving path of the three groups of support mechanisms 2 from left to right. The first roller 10, the second roller 11 and the third roller 12 are mounted on the support rod 21 and roll in contact with the surface of the large steel pipe. The first baffle 7, the second baffle 8 and the third baffle 9 are fixedly connected to the base 23, as shown in FIG. Figure 1 As shown, a cold drawing box 1 is installed on one side of the support seat 4, a drawing car 3 is provided on the discharge side of the cold drawing box 1, the support mechanism 2 is located between the support seat 4 and the drawing car 3, and also includes a chain conveyor 5, the chain conveyor 5 is rotatably connected to the support seat 4, the hook of the drawing car 3 is fixedly connected to the chain conveyor 5, and the wheel of the drawing car 3 is located in the groove 41 on the support seat 4.

[0043] In actual use, after the drawing vehicle 3 is firmly connected to the large steel pipe, the chain conveyor 5 is started to drive the drawing vehicle 3 to move, so that the large steel pipe passes through the cold drawing box 1 to complete the cold drawing. When the steel pipe is cold drawn, the electric push rod 22 is started to move the support rod 21 up and down, so that the roller installed on the support rod 21 fits with the steel pipe, driving the base 23 to move through the pulley 24 in the slide groove in the support seat 4, and then driving the baffle to move. When the baffle moves to the position corresponding to the limit plate, the baffle stops moving, and the support mechanism 2 connected to the baffle also stops Movement, the spring connection can reduce the impact force generated when the support mechanism 2 stops moving, thereby increasing the service life of the support mechanism 2. When the drawing vehicle 3 moves to the end of the chain conveyor 5, the cold drawing is completed, and the three support mechanisms 2 are fixed to stably support the large steel pipe after cold drawing. The three support mechanisms 2 support the large steel pipe as it moves, thereby achieving efficient and less frictional support for the large steel pipe after cold drawing, thereby improving work efficiency and the service life of the device.

[0044] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0045] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments described herein, but should conform to the widest scope consistent with the principles and novel features of the present invention.

Claims

1. A cold drawing device for large steel pipes, characterized in that: include: A support mechanism (2), the support mechanism (2) comprising a support rod (21), an electric push rod (22), a base (23) and a pulley (24), the support mechanism (2) being provided with three groups, which support the movement of the large steel pipe after cold drawing; A limiting plate (42), the supporting mechanism (2) is slidably mounted on the limiting plate (42), the limiting plate (42) being divided into three sections, respectively used to limit the moving paths of the three groups of supporting mechanisms (2) from left to right; The first roller (10), the second roller (11) and the third roller (12) are mounted on the support rod (21) and roll in contact with the surface of the large steel pipe; The first baffle plate (7), the second baffle plate (8) and the third baffle plate (9) are fixedly connected to the base (23).

2. The cold drawing device for large steel pipes according to claim 1, characterized in that: It also includes a support seat (4), the limiting plate (42) is installed on the upper end of the support seat (4), grooves (41) are provided on both sides of the limiting plate (42), and the support mechanism (2) is slidably connected to the support seat (4).

3. The cold drawing device for large steel pipe according to claim 2, characterized in that: The upper end of the electric push rod (22) is fixedly connected to the support rod (21), and the lower end of the electric push rod (22) is fixedly connected to the base (23). Pulleys (24) are installed on both sides of the base (23). A sliding groove is provided inside the support seat (4), and the pulley (24) is slidably connected to the sliding groove.

4. The cold drawing device for large steel pipes according to claim 1, characterized in that: The first roller (10), the second roller (11) and the third roller (12) form a group, and the first roller (10), the second roller (11) and the third roller (12) are provided with three groups, the first roller (10) is rotatably connected to the lower end of the corresponding support rod (21), the second roller (11) and the third roller (12) are rotatably connected to the two sides of the corresponding support rod (21), respectively, and the lower ends of the second roller (11) and the third roller (12) are at the same horizontal position as the first roller (10).

5. The cold drawing device for large steel pipes according to claim 2, characterized in that: A cold drawing box (1) is installed on one side of the support seat (4), a drawing car (3) is provided on the material discharge side of the cold drawing box (1), and the support mechanism (2) is located between the support seat (4) and the drawing car (3).

6. The cold drawing device for large steel pipes according to claim 5, characterized in that: It also comprises a chain conveyor (5), wherein the driving motor on the chain conveyor (5) is fixedly connected to the support seat (4), the roller on the chain conveyor (5) is rotatably connected to the support seat (4), the hook of the pulling vehicle (3) is fixedly connected to the chain on the chain conveyor (5), and the wheel of the pulling vehicle (3) is located in a groove (41) on the support seat (4).

7. The cold drawing device for large steel pipes according to claim 1, characterized in that: A spring rod (6) is fixedly connected to one side of the three bases (23) close to the limit plate (42) segment, and the three spring rods (6) are respectively fixedly connected to the first baffle plate (7), the second baffle plate (8) and the third baffle plate (9).

8. The cold drawing device for large steel pipes according to claim 1, characterized in that: The length of the first baffle (7) is greater than that of the second baffle (8), and the length of the second baffle (8) is greater than that of the third baffle (9).

9. The cold drawing device for large steel pipes according to claim 1, characterized in that: The distance between the support mechanism (2) equipped with the first baffle (7) and the cold drawing box (1) is the shortest, and the distance between the support mechanism (2) equipped with the third baffle (9) and the cold drawing box (1) is the farthest.

10. The cold drawing device for large steel pipe according to claim 1, characterized in that: The surfaces of the first roller (10), the second roller (11) and the third roller (12) are coated with a cooling coating.

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