Purging device and rolling mill thereof

Abstract

The utility model discloses a purging device and a rolling mill thereof, the purging device comprises a telescopic assembly capable of axially telescoping and a blowpipe assembly, the blowpipe assembly is arranged at one end of the telescopic assembly, and the other end of the telescopic assembly is rotatably arranged in the rolling mill. According to the blowing device, the pipe blowing assembly can be close to or far away from a pipe fitting through stretching and retracting of the telescopic assembly and running fit between the telescopic assembly and the rolling mill, then the pipe blowing assembly is made to go deep into the fin machining initial position of the rolling mill, and the problem that in the prior art, fin segments cannot be completely covered and blown is solved; the rolling machine can be flexibly adjusted to be retracted and released, production adjustment is not affected, and in production, the rolling machine rolls the blowing device while conducting surface blowing on the rolled part of the pipe fitting and removing residual cutting fluid, so that residual stains on the surface are reduced, the residual cutting fluid is removed from the whole section of the pipe fitting, dry spots and accumulated dirt on the outer surface of the pipe fitting are eliminated, and the service life of the pipe fitting is prolonged. And the surface quality of the pipe fitting is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to rolling mill technical field especially, relates to a kind of blowing device and its rolling mill. BACKGROUND

[0002] In efficient tube rolling production, after rolling is completed, the machining residual cutting fluid can be attached in copper tube fin gap in large quantities, the current commonly used method is to remove the cutting fluid attached in copper tube fin gap after rolling production by soaking, but in order to improve production efficiency, copper tube after rolling production is not immediately put into soaking, generally, after producing a batch of tubes, it is together into cleaning, in this process, copper tube is exposed to air, cutting fluid remaining in copper tube fin gap can be dried to form dense stain, which is generally difficult to remove by soaking, and the stain remaining on the surface of copper tube can seriously exacerbate the corrosion and oxidation of the surface of copper tube, causing oxidation and blackening, affecting the surface quality of efficient tube, and can also exacerbate the corrosion of the surface of copper tube, which may not reach the service life and fail prematurely.

[0003] In order to solve the above problems, the copper tube is generally blown by the blowing device, and the conventional blowing device is currently placed outside the rolling mill, so that a long fin segment from the installation position to the fin processing starting end cannot be blown, resulting in that the surface quality of the segment after cleaning and drying is significantly lower than that of the blown segment. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of blowing device and its rolling mill, to solve the technical problem that the conventional blowing device of current existing is placed outside the rolling mill, resulting in that a long fin segment from the installation position to the fin processing starting end cannot be blown.

[0005] In order to solve the above problems, according to one aspect of the present application, the utility model embodiment provides a kind of blowing device, for rolling mill, pipe fitting is installed on the rolling mill, the blowing device includes the telescopic assembly that can be axially telescopic and blow pipe assembly, the blow pipe assembly is set to one end of the telescopic assembly, the other end of the telescopic assembly is rotatably set to the inside of the rolling mill, so that the blow pipe assembly is close to or away from the pipe fitting.

[0006] In some embodiments, the telescopic assembly includes a first connecting rod and a second connecting rod, one end of the first connecting rod is rotatably set to the inside of the rolling mill, the blow pipe assembly is set to one end of the second connecting rod, and a circumferential relative rotation is constructed between the other end of the first connecting rod and the other end of the second connecting rod, so that the first telescopic structure of one end of the first connecting rod is close to or away from one end of the second connecting rod.

[0007] In some embodiments, the first telescopic structure comprises a first axially extending rod configured at the other end of the first connecting rod and a first axially inserted hole provided at the other end of the second connecting rod; the first axially extending rod is inserted into the first axially inserted hole, and the outer wall of the first axially extending rod is configured with a first external thread, and the inner wall of the first axially inserted hole is configured with a first internal thread matched with the first external thread.

[0008] In some embodiments, the first telescopic structure comprises a second axially extending rod configured at the other end of the second connecting rod and a second axially inserted hole provided at the other end of the first connecting rod; the second axially extending rod is inserted into the second axially inserted hole, and the outer wall of the second axially extending rod is configured with a second external thread, and the inner wall of the second axially inserted hole is configured with a second internal thread matched with the second external thread.

[0009] In some embodiments, the blowing device further comprises an inserted tube rotatably provided at one end of the second connecting rod, the axis of the inserted tube and the axis of the second connecting rod form a preset included angle, the preset included angle is greater than 0° and less than 90°, and the blowing tube assembly is inserted into the inserted tube.

[0010] In some embodiments, the inner wall of the inserted tube is configured with an internal thread, and the outer wall of the blowing tube assembly is configured with an external thread; and / or, the preset included angle is 90°.

[0011] In some embodiments, the outer wall of the inserted tube is configured with a connecting portion extending towards the second connecting rod, the connecting portion is configured with an inserted shaft away from one end of the inserted tube, and one end of the second connecting rod is configured with a third axially inserted hole for inserting the inserted shaft.

[0012] In some embodiments, the blowing device further comprises a third connecting rod, the third connecting rod is connected with the rolling mill and rotatably connected with one end of the first connecting rod.

[0013] In some embodiments, the blowing device further comprises a rotating shaft, the third connecting rod is configured with a first chord surface near the side wall of one end of the first connecting rod, the first chord surface is provided with a first through hole, the first connecting rod is configured with a second chord surface near the side wall of one end of the third connecting rod, the second chord surface is provided with a second through hole, the first chord surface and the second chord surface abut each other, and the rotating shaft is inserted into the first through hole and the second through hole.

[0014] In some embodiments, the blowing device further comprises a base, the base is detachably provided inside the rolling mill, one end of the third connecting rod away from the first connecting rod is rotatably inserted into the side wall of the base, and when rotating, the one end of the first connecting rod can be close to or away from the base.

[0015] In some embodiments, the blowpipe assembly includes an air inlet end connected to the air supply pipe and an air outlet end facing the tube, and the air outlet end is tapered in the air outlet direction.

[0016] According to another aspect of the present application, the utility model embodiment further provides a rolling mill, the rolling mill includes a rolling mill head and a front guide sleeve support assembly and the above-mentioned blowing device, the tube is arranged on the guide sleeve support assembly, and the tube extends to the rolling mill head, when the blowing device includes a base and a first connecting rod, the base is arranged on the front guide sleeve support assembly, and the first connecting rod is located on the side of the front guide sleeve support assembly close to the rolling mill head.

[0017] Compared with the prior art, the blowing device has at least the following beneficial effects:

[0018] The utility model discloses a kind of blowing devices, which is used for rolling mill, and the tube is arranged on the rolling mill, and the blowing device includes telescopic component that can be axially telescopic and blowpipe assembly, blowpipe assembly is arranged at one end of telescopic component, and the other end of telescopic component is rotatably arranged in the inside of rolling mill, the blowing device of the utility model can make blowpipe assembly close to or away from tube by the telescopic of telescopic component and the rotation cooperation between telescopic component and rolling mill, and then make blowpipe assembly penetrate to the fin processing starting position of rolling mill, solve the problem that previous fin section cannot be fully covered and blown, and can be flexibly adjusted, without affecting production adjustment, in production, rolling mill side rolls blowing device side to the surface of the part of tube that has been rolled is blown, to remove residual cutting fluid, to reduce surface stain residue, realize that residual cutting fluid is removed in the whole section of tube, eliminate dry spot and accumulated dirt on the surface of tube, and ensure the surface quality of tube.

[0019] Another aspect, the rolling mill provided by the utility model is manufactured based on the above-mentioned blowing device, and its beneficial effects refer to those of the above-mentioned blowing device, which will not be repeated here.

[0020] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and can be implemented according to the content of the specification, the following preferred embodiments of the utility model are described in detail with the help of drawings. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the premise of not paying creative effort.

[0022] Figure 1 The structure diagram of the blowing device provided by the embodiment of the present application is shown.

[0023] Figure 2 The exploded structure diagram of the blowing device provided by the embodiment of the present application is shown.

[0024] Figure 3 The exploded structure diagram of the blowing device provided by the embodiment of the present application is shown.

[0025] Figure 4 The sectional view of the rolling mill provided by the embodiment of the present application is shown.

[0026] Figure 5 The sectional view of the rolling mill provided by the embodiment of the present application is shown. Figure 4

[0027] Figure 6 The sectional view of the rolling mill provided by the embodiment of the present application is shown.

[0028] Explanation of the reference signs:

[0029] 1, pipe fitting;

[0030] 21, telescopic assembly; 211, first connecting rod; 2111, first axial extension rod; 2112, second chord surface; 2113, second through hole;

[0031] 212, second connecting rod; 2121, first axial insertion hole; 2122, third axial insertion hole;

[0032] 22, blowing pipe assembly; 221, air inlet end; 222, air outlet end;

[0033] 23, insertion pipe; 231, connecting part; 2311, insertion shaft;

[0034] 24, third connecting rod; 241, first chord surface; 2411, first through hole;

[0035] 25, rotating shaft;

[0036] 26, base;

[0037] 31, rolling mill head;

[0038] 32, front guide sleeve support assembly. ​Detailed Implementation

[0039] To further illustrate the technical means and effects adopted by this utility model to achieve its intended purpose, the specific implementation methods, structures, features, and effects according to this utility model application are described in detail below with reference to the accompanying drawings and preferred embodiments. In the following description, different "an embodiment" or "an embodiment" do not necessarily refer to the same embodiment. Furthermore, specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0040] In the description of this utility model, it should be clarified that the terms "first," "second," etc., in the specification, claims, and drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence; the terms "vertical," "lateral," "longitudinal," "front," "back," "left," "right," "up," "down," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this utility model, and do not mean that the device or element referred to must have a specific orientation or position, and therefore should not be construed as a limitation of this utility model.

[0041] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] Example 1

[0043] like Figures 1-6 As shown, this utility model embodiment provides a purging device for a rolling mill. The rolling mill is equipped with a pipe fitting 1. The purging device includes a telescopic component 21 that can extend and retract axially and a blowpipe component 22. The blowpipe component 22 is disposed at one end of the telescopic component 21, and the other end of the telescopic component 21 is rotatably disposed inside the rolling mill so that the blowpipe component 22 can move closer to or further away from the pipe fitting 1.

[0044] In the embodiment, the blowing device is used for a roller mill on which a pipe 1 is arranged, the blowing device comprises a telescopic assembly 21 capable of axial telescoping and a blowing pipe assembly 22, the blowing pipe assembly 22 is arranged at one end of the telescopic assembly 21, and the other end of the telescopic assembly 21 is rotatably arranged in the interior of the roller mill. The blowing device of the embodiment can make the blowing pipe assembly 22 close to or away from the pipe 1 through the telescoping of the telescopic assembly 21 and the rotation between the telescopic assembly 21 and the roller mill, and then make the blowing pipe assembly 22 deeply into the fin processing starting position of the roller mill, thereby solving the problem that the previous fin section cannot be fully covered and blown, and the telescoping can be flexibly adjusted without affecting the production adjustment. In the production, the roller mill rolls while the blowing device blows the surface of the part of the pipe 1 on which the rolling is completed, and removes the residual cutting fluid, so as to reduce the surface stain residue, remove the residual cutting fluid of the whole section of the pipe 1, eliminate the dry spots and accumulated dirt on the outer surface of the pipe 1, and ensure the surface quality of the pipe 1.

[0045] In some embodiments, the telescopic assembly 21 comprises a first connecting rod 211 and a second connecting rod 212, one end of the first connecting rod 211 is rotatably arranged in the interior of the roller mill, the blowing pipe assembly 22 is arranged at one end of the second connecting rod 212, and a first telescoping structure is configured between the other end of the first connecting rod 211 and the other end of the second connecting rod 212, which makes one end of the first connecting rod 211 axially close to or away from one end of the second connecting rod 212 when the first connecting rod 211 and the second connecting rod 212 rotate relative to each other.

[0046] In the embodiment, a first telescoping structure is configured between the other end of the first connecting rod 211 and the other end of the second connecting rod 212, which makes one end of the first connecting rod 211 axially close to or away from one end of the second connecting rod 212 when the first connecting rod 211 and the second connecting rod 212 rotate relative to each other, and the telescoping between the first connecting rod 211 and the second connecting rod 212 is realized when the second connecting rod 212 rotates relative to the first connecting rod 211. The blowing pipe assembly 22 deeply into the fin processing starting position of the roller mill, thereby solving the problem that the previous fin section cannot be fully covered and blown, and the telescoping can be flexibly adjusted without affecting the production adjustment. In the production, the roller mill rolls while the blowing device blows the surface of the part of the pipe 1 on which the rolling is completed, and removes the residual cutting fluid, so as to reduce the surface stain residue, remove the residual cutting fluid of the whole section of the pipe 1, eliminate the dry spots and accumulated dirt on the outer surface of the pipe 1, and ensure the surface quality of the pipe 1.

[0047] In some embodiments, the first telescopic structure comprises a first axial extension rod 2111 configured at the other end of the first connecting rod 211 and a first axial insertion hole 2121 configured at the other end of the second connecting rod 212; the first axial extension rod 2111 is inserted into the first axial insertion hole 2121, and the outer wall of the first axial extension rod 2111 is configured with a first external thread, and the inner wall of the first axial insertion hole 2121 is configured with a first internal thread matched with the first external thread.

[0048] In this embodiment, the first axial extension rod 2111 is configured at the other end of the first connecting rod 211, the first axial insertion hole 2121 is configured at the other end of the second connecting rod 212, the outer wall of the first axial extension rod 2111 is configured with a first external thread, the inner wall of the first axial insertion hole 2121 is configured with a first internal thread, and the first telescopic structure is achieved by matching the first external thread of the first axial extension rod 2111 with the first internal thread of the first axial insertion hole 2121.

[0049] In some embodiments, the first telescopic structure comprises a second axial extension rod configured at the other end of the second connecting rod 212 and a second axial insertion hole configured at the other end of the first connecting rod 211; the second axial extension rod is inserted into the second axial insertion hole, the outer wall of the second axial extension rod is configured with a second external thread, and the inner wall of the second axial insertion hole is configured with a second internal thread matched with the second external thread.

[0050] In this embodiment, the second axial extension rod is configured at the other end of the second connecting rod 212, the second axial insertion hole is configured at the other end of the first connecting rod 211, the outer wall of the second axial extension rod is configured with a second external thread, the inner wall of the second axial insertion hole is configured with a second internal thread, and the first telescopic structure is achieved by matching the second external thread of the second axial extension rod with the second internal thread of the second axial insertion hole.

[0051] In some embodiments, the blowing device further comprises a plug-in pipe 23 rotatably arranged at one end of the second connecting rod 212, an axis of the plug-in pipe 23 forms a preset angle with an axis of the second connecting rod 212, the preset angle is greater than 0° and less than 90°, and the blowing pipe assembly 22 is arranged in the plug-in pipe 23. The angle adjustment between the blowing pipe assembly 22 and the one end of the second connecting rod 212 in different directions is facilitated, so that the blowing pipe assembly 22 can blow the surface of the part of the pipe 1 that has been rolled to remove residual cutting fluid, thereby reducing surface stain residues, removing residual cutting fluid from the entire pipe 1, eliminating dry spots and accumulated dirt on the outer surface of the pipe 1, and ensuring the surface quality of the pipe 1.

[0052] In some embodiments, the inner wall of the plug-in pipe 23 is provided with internal threads, and the outer wall of the blowing pipe assembly 22 is provided with external threads, so that the relative position between the two ends of the blowing pipe assembly 22 and the one end of the second connecting rod 212 is adjusted, so that the blowing pipe assembly 22 can blow the surface of the part of the pipe 1 that has been rolled to remove residual cutting fluid, thereby reducing surface stain residues, removing residual cutting fluid from the entire pipe 1, eliminating dry spots and accumulated dirt on the outer surface of the pipe 1, and ensuring the surface quality of the pipe 1.

[0053] In some embodiments, the preset angle is 90°.

[0054] In some embodiments, the outer wall of the plug-in pipe 23 is provided with a connecting portion 231 extending towards the second connecting rod 212, the connecting portion 231 is provided with a plug-in shaft 2311 away from one end of the plug-in pipe 23, and one end of the second connecting rod 212 is provided with a third axial plug-in hole 2122 for inserting the plug-in shaft 2311.

[0055] In this embodiment, the plug-in shaft 2311 is arranged on the connecting portion 231 of the plug-in pipe 23, and the third axial plug-in hole 2122 for inserting the plug-in shaft 2311 is arranged at one end of the second connecting rod 212, so that the plug-in pipe 23 is rotatably arranged at one end of the second connecting rod 212.

[0056] In some embodiments, the blowing device further comprises a third connecting rod 24, the third connecting rod 24 is connected to the rolling mill and rotatably connected to one end of the first connecting rod 211, and the other end of the telescopic assembly 21 is rotatably arranged in the interior of the rolling mill through the rotatable connection between the third connecting rod 24 and the one end of the first connecting rod 211.

[0057] In some embodiments, the blowing device further comprises a rotating shaft 25, the third connecting rod 24 is provided with a first string section 241 on the side wall near one end of the first connecting rod 211, the first string section 241 is provided with a first through hole 2411, the first connecting rod 211 is provided with a second string section 2112 on the side wall near one end of the third connecting rod 24, the second string section 2112 is provided with a second through hole 2113, the first string section 241 abuts against the second string section 2112, and the rotating shaft 25 is arranged in the first through hole 2411 and the second through hole 2113.

[0058] In the embodiment, the rotating shaft 25 is arranged in the first through hole 2411 and the second through hole 2113, so that the third connecting rod 24 and the first connecting rod 211 are rotatably connected.

[0059] In some embodiments, the blowing device further comprises a base 26, the base 26 is detachably arranged in the interior of the rolling machine, one end of the third connecting rod 24 away from the first connecting rod 211 is rotatably arranged in the side wall of the base 26, and when rotated, the one end of the first connecting rod 211 can be close to or away from the base 26.

[0060] In the embodiment, the base 26 is detachably arranged in the interior of the rolling machine, one end of the third connecting rod 24 away from the first connecting rod 211 is rotatably arranged in the side wall of the base 26, and when the third connecting rod 24 is rotated, the one end of the first connecting rod 211 can be close to or away from the base 26, so that the blowing device and the rolling machine are convenient to disassemble and assemble, and the blowing tube assembly 22 can be close to or away from the pipe 1 by rotating the third connecting rod 24.

[0061] In some embodiments, the blowing tube assembly 22 comprises an air inlet end 221 and an air outlet end 222, the air inlet end 221 is connected with a gas conveying pipe, the air outlet end 222 is directed to the pipe 1, and the air outlet end 222 gradually narrows in the air outlet direction, so that it has sufficient air pressure to blow the surface of the pipe 1. An adjustable air pressure valve can be arranged to adjust different air pressures to meet the blowing requirements of different pipe types.

[0062] Embodiment 2

[0063] The utility model discloses still provided a kind of roll mill, the roll mill includes roll mill head 31 and front guide sleeve support assembly 32 and the purging device described in embodiment 1, pipe fitting 1 is equipped on the guide sleeve support assembly, and the pipe fitting 1 extends to the roll mill head 31, when the purging device includes pedestal 26 and first connecting rod 211, the pedestal 26 is arranged on the front guide sleeve support assembly 32, and the first connecting rod 211 is located on the side of the front guide sleeve support assembly 32 close to the roll mill head 31.

[0064] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described devices, apparatuses and units can refer to the corresponding process in the foregoing method embodiments, which will not be repeated here.

[0065] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A purging device for a rolling mill, the rolling mill being equipped with pipe fittings, characterized in that, The purging device includes an axially extendable telescopic component and a blowpipe assembly. The blowpipe assembly is disposed at one end of the telescopic component, and the other end of the telescopic component is rotatably disposed inside the rolling mill, so that the blowpipe assembly can move closer to or further away from the tube.

2. The purging device according to claim 1, characterized in that, The telescopic assembly includes a first link and a second link. One end of the first link is rotatably disposed inside the rolling mill. The blowpipe assembly is disposed at one end of the second link. The other ends of the first link and the other ends of the second link are configured to rotate circumferentially relative to each other, so that one end of the first link moves closer to or further away from one end of the second link, forming a first telescopic structure.

3. The purging device according to claim 2, characterized in that, The first telescopic structure includes a first axial extension rod disposed at the other end of the first connecting rod and a first axial insertion hole disposed at the other end of the second connecting rod; the first axial extension rod is inserted into the first axial insertion hole, the outer wall of the first axial extension rod is provided with a first external thread, and the inner wall of the first axial insertion hole is provided with a second internal thread that matches the first external thread.

4. The purging device according to claim 2, characterized in that, The first telescopic structure includes a second axial extension rod constructed at the other end of the second connecting rod and a second axial insertion hole disposed at the other end of the first connecting rod; the second axial extension rod is inserted into the second axial insertion hole, the outer wall of the second axial extension rod is constructed with a second external thread, and the inner wall of the second axial insertion hole is constructed with a second internal thread that matches the second external thread.

5. The purging device according to claim 2, characterized in that, The purging device further includes an insert tube rotatably disposed at one end of the second connecting rod. The axis of the insert tube forms a preset angle with the axis of the second connecting rod. The preset angle is greater than 0° and less than 90°. The blowpipe assembly passes through the insert tube.

6. The purging device according to claim 5, characterized in that, The inner wall of the insert tube has internal threads, and the outer wall of the blowpipe assembly has external threads; and / or, the preset included angle is 90°.

7. The purging device according to claim 5, characterized in that, The outer wall of the insertion tube is provided with a connecting portion extending toward the second connecting rod. The end of the connecting portion away from the insertion tube is provided with an insertion shaft, and the end of the second connecting rod is provided with a third axial insertion hole for the insertion shaft to be inserted.

8. The purging device according to claim 2, characterized in that, The purging device also includes a third connecting rod, which is connected to the rolling mill and rotatably connected to one end of the first connecting rod.

9. The purging device according to claim 8, characterized in that, The purging device also includes a rotating shaft. The side wall of the third connecting rod near the end of the first connecting rod has a first chord section, and a first through hole is opened at the first chord section. The side wall of the first connecting rod near the end of the third connecting rod has a second chord section, and a second through hole is opened at the second chord section. The first chord section and the second chord section abut against each other. The rotating shaft passes through the first through hole and the second through hole.

10. The purging apparatus according to claim 8, characterized in that, The purging device also includes a base, which is detachably disposed inside the rolling mill. The end of the third connecting rod away from the first connecting rod is rotatably inserted into the side wall of the base, and when rotated, it can cause one end of the first connecting rod to move closer to or further away from the base.

11. The purging device according to claim 1, characterized in that, The blowpipe assembly includes an air inlet and an air outlet. The air inlet is connected to the air supply pipe, and the air outlet faces the pipe and gradually narrows in the air outlet direction.

12. A rolling mill, characterized in that, The rolling mill includes a rolling mill head, a front guide sleeve support assembly, and a purging device as described in any one of claims 1-11. A pipe is mounted on the front guide sleeve support assembly, and the pipe extends to the rolling mill head. When the purging device includes a base and a first connecting rod, the base is disposed on the front guide sleeve support assembly, and the first connecting rod is located on the side of the front guide sleeve support assembly closer to the rolling mill head.

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