Pipe head guiding device and pipe drawing equipment

Abstract

The utility model provides a pipe head guide device and pipe drawing equipment. The pipe head guide device comprises a guide nozzle and a guide sleeve, a mounting part and a first guide channel are arranged on the guide nozzle, the mounting part is used for being connected with a mold assembly, a first oil groove is formed in the first guide channel, and the first oil groove is communicated to the outer side of the guide sleeve; the guide sleeve is detachably installed in the first guide channel, a second guide channel is formed in the guide sleeve, the inner diameter of the second guide channel is smaller than that of the first guide channel, and a second oil groove is formed in the second guide channel. Compared with the prior art, the pipe head guiding device has the advantages that the pipe heads of the pipes are sequentially guided to move through the first guiding channel and the second guiding channel, so that the pipe heads of the pipes are effectively guided to be automatically aligned to enter the outer die holes of the die, rapid and automatic pipe penetrating is achieved, manual pipe supporting for direction alignment is not needed, and production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe processing and manufacturing, in particular to a pipe head guiding device and pipe drawing equipment. Background Art

[0002] At present, in the production of pipes, a certain length of ingot is milled to remove the surface oxide scale, and then enters the pipe rolling mill for ingot rolling. After the pipe rolling is completed, the pipe is coiled into a coil, and then the pipe is drawn to obtain the pipe with the required outer diameter and wall thickness. Before drawing, the pipe needs to be headed to form a relatively flat pipe head, so that the drawing machine can clamp the pipe head of the pipe and then draw it.

[0003] Because the part of the pipe near the pipe head is deformed and not straight after the head is made, there is still a certain bend even after straightening, and it is difficult to align it with the outer die hole of the mold. As a result, when the pipe head passes through the outer die hole, it is necessary to manually support the pipe to adjust the direction of the pipe head, which requires manual operation and cooperation, and the production efficiency is low. Utility Model Content

[0004] The utility model aims to overcome the shortcomings and deficiencies in the prior art and provide a pipe head guiding device and a pipe drawing device.

[0005] An embodiment of the utility model provides a pipe head guiding device, comprising: a guide nozzle and a guide sleeve;

[0006] The guide nozzle is provided with a mounting portion and a first guide channel, the mounting portion is used to be connected to the mold assembly, and the first guide channel is provided with a first oil groove, which is connected to the outer side of the guide sleeve;

[0007] The guide sleeve is detachably mounted in the first guide channel, a second guide channel is arranged on the guide sleeve, the second guide channel is communicated with the first guide channel, an inner diameter of the second guide channel is smaller than an inner diameter of the first guide channel, a second oil groove is arranged in the second guide channel, and the second oil groove is communicated with the first oil groove.

[0008] In some optional embodiments, the first guide channel includes an introduction section and a mounting section connected to each other, the inner diameter of the introduction section gradually decreases in a direction close to the mounting section, and the inner diameter of the introduction section is larger than the inner diameter of the mounting section and the inner diameter of the second guide channel;

[0009] The first oil groove is arranged at the installation section, the guide sleeve is arranged in the installation section, and the second guide channel is communicated with the installation section.

[0010] In some optional embodiments, the inner diameter of the second guide channel gradually decreases in a direction from an inlet to an outlet of the second guide channel.

[0011] In some optional embodiments, in a cross section parallel to the extension axis of the first guide channel, an angle between two opposite inner walls of the second guide channel is greater than an angle between two opposite inner walls of the introduction section.

[0012] In some optional embodiments, the width of the first oil groove gradually increases in a direction away from the second oil groove.

[0013] In some optional embodiments, the mounting portion includes two mounting ears respectively arranged on both sides of the guide nozzle, and the mounting ears are provided with mounting holes.

[0014] In some optional embodiments, the mounting portion is located on the side of the inlet of the first guide channel, the first oil groove is arranged at one end of the guide nozzle close to the outlet of the first guide channel, and the second oil groove is arranged at one end of the guide sleeve close to the outlet of the second guide channel.

[0015] In some optional embodiments, the guide sleeve is a nylon guide sleeve.

[0016] Another embodiment of the utility model provides a pipe drawing device, comprising: a frame, a drawing mechanism arranged on the frame, a mold assembly arranged on the frame, and a pipe head guiding device as described above, wherein the guide nozzle of the pipe head guiding device is installed on the mold assembly through the mounting part of the pipe head guiding device.

[0017] In some optional embodiments, an outer mold hole is provided on the mold assembly, and the inner diameter of the guide sleeve of the tube head guiding device is larger than the inner diameter of the outer mold hole.

[0018] Compared with the prior art, in the tube head guiding device of the utility model, the tube head of the tube is guided to move in sequence through the first guide channel and the second guide channel, thereby effectively guiding the tube head of the tube to automatically align and enter the outer mold hole of the mold, realizing fast and automatic tube threading without the need for manual support of the tube to align the direction, thereby improving production efficiency.

[0019] In order to more clearly understand the present invention, the specific implementation of the present invention will be described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a pipe head guiding device according to an embodiment of the utility model;

[0021] Figure 2An exploded view of a pipe head guide device according to an embodiment of the utility model;

[0022] Figure 3 A cross-sectional view of a pipe head guide device according to an embodiment of the utility model;

[0023] Figure 4 A cross-sectional view of a guide nozzle according to an embodiment of the utility model;

[0024] Figure 5 It is a cross-sectional view of a guide sleeve according to an embodiment of the utility model.

[0025] Description of reference numerals:

[0026] 10. guide nozzle; 11. mounting portion; 111. mounting ear; 112. mounting hole; 12. first guide channel; 13. first oil groove; 14. introduction section; 15. mounting section;

[0027] 20. guide sleeve; 21. second guide channel; 22. second oil groove; DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. In the description of the utility model, unless otherwise specified, "multiple" means 2 or more, and "several" means 1 or more. In addition, unless otherwise specified, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the description of the utility model, the description with reference to the terms "one embodiment", "some optional implementations" or "some optional embodiments" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0032] See also Figure 1 An embodiment of the utility model provides a pipe head guiding device, including: a guide nozzle 10 and a guide sleeve 20.

[0033] See also Figure 2 The guide nozzle 10 is provided with a mounting portion 11 and a first guide channel 12 . The mounting portion 11 is used to be connected to the mold assembly. The first guide channel 12 is provided with a first oil groove 13 . The first oil groove 13 is connected to the outer side of the guide sleeve 20 .

[0034] See also Figure 3 The guide sleeve 20 is detachably mounted in the first guide channel 12. A second guide channel 21 is provided on the guide sleeve 20. The second guide channel 21 is connected to the first guide channel 12. The inner diameter of the second guide channel 21 is smaller than the inner diameter of the first guide channel 12, so as to gradually guide the tube head of the pipe to align with the outer die hole of the mold. A second oil groove 22 is provided in the second guide channel 21. The second oil groove 22 is connected to the first oil groove 13. The first oil groove 13 and the second oil groove 22 facilitate the transportation of the outer die oil. The oil outlet hole on the mold assembly is aligned with the first oil groove 13. When the pipe is drawn, the outer die oil drips out from the oil outlet hole, and then passes through the first oil groove 13 and the second oil groove 22 in sequence, and then enters the second guide channel 21, and finally falls on the pipe.

[0035] The outlet of the second guide channel 21 is connected to the outer mold hole of the mold assembly. When the pipe is threaded, the pipe head of the pipe enters the first guide channel 12, and then enters the second guide channel 21, and then passes through the outer mold hole of the mold assembly. The pipe head of the pipe is guided to move in turn through the first guide channel 12 and the second guide channel 21, thereby effectively guiding the pipe head of the pipe to enter the outer mold hole of the mold assembly, realizing fast and automatic pipe threading without manual pipe support, thereby improving production efficiency.

[0036] Since the pipe shakes during the drawing process, the guide sleeve 20 may often come into contact with the pipe, so the guide sleeve 20 needs to be replaced after a period of use. The detachable design of the guide sleeve 20 facilitates the replacement of the guide sleeve 20. The detachable installation method of the guide sleeve 20 can be designed according to actual needs. For example, the guide sleeve 20 is installed in the second guide channel 21 by interference fit with the second guide channel 21. Of course, the guide sleeve 20 can also be assembled with the guide nozzle 10 by a snap-fit ​​structure or a threaded structure.

[0037] See also Figure 4 In some optional embodiments, the first guide channel 12 includes an introduction section 14 and a mounting section 15 connected to each other, the inner diameter of the introduction section 14 gradually decreases in the direction close to the mounting section 15, and the inner diameter of the introduction section 14 is larger than the inner diameter of the mounting section 15 and the inner diameter of the second guide channel 21; the first oil groove 13 is arranged in the mounting section 15, the guide sleeve 20 is arranged in the mounting section 15, and the second guide channel 21 is connected to the mounting section 15. When the pipe enters the first guide channel 12, it first enters the introduction section 14. Since the inner diameter of the introduction section 14 is large enough, it is convenient for the pipe head of the pipe to enter the first guide channel 12, and then the pipe head of the pipe enters the mounting section 15 under the guidance of the introduction section 14, and then enters the second guide channel 21.

[0038] In some optional embodiments, the inner diameter of the second guide channel 21 gradually decreases in the direction from the inlet to the outlet of the second guide channel 21. After the pipe head of the pipe enters the inlet of the second guide channel 21 under the guidance of the first guide channel 12, it gradually aligns with the outer mold hole under the guidance of the second guide channel 21, and finally the pipe head detaches from the outlet of the second guide channel 21 and accurately enters the outer mold hole.

[0039] Please also see Figures 3 to 5In some optional embodiments, on a cross section parallel to the extension axis of the first guide channel 12, the angle between the two relative inner walls of the second guide channel 21 is greater than the angle between the two relative inner walls of the introduction section 14. When the pipe head of the pipe moves toward the first guide channel 12 under the drive of the equipment implementing the previous step, the pipe head of the pipe may deviate far from the center position of the introduction port of the introduction section 14. The introduction section 14 performs preliminary guidance of the pipe head at a small angle to avoid applying a large resistance to the pipe head, thereby avoiding the situation where the pipe head is stuck in the introduction section 14 and cannot move. After the pipe head of the pipe passes through the introduction section 14, the pipe head of the pipe has been initially guided and the distance from the center position of the second guide channel 21 is small. Therefore, the second guide channel 21 can adjust the direction of the pipe head at a large angle to achieve rapid guidance of the pipe head, and it is also beneficial to shorten the length of the second guide channel 21. Since the tube shakes during the drawing process, the guide sleeve 20 may often come into contact with the tube. Therefore, the guide sleeve 20 needs to be replaced after a period of use. Reducing the length of the second guide channel 21 is conducive to reducing the overall size of the guide sleeve 20, thereby reducing the material used for the guide sleeve 20 and saving costs.

[0040] In some optional embodiments, the width of the first oil groove 13 gradually increases in the direction away from the second oil groove 22, thereby facilitating the external mold oil dripping from the oil outlet hole on the mold assembly to enter the first oil groove 13 and conveniently guiding the external mold oil to enter the second oil groove 22.

[0041] In some optional embodiments, the mounting portion 11 includes two mounting ears 111 respectively arranged on both sides of the guide nozzle 10, and the mounting ears 111 are provided with mounting holes 112. When the guide nozzle 10 is installed, the bolt passes through the mounting hole 112 and then is connected to the mold assembly, thereby realizing the installation of the guide nozzle 10. In this embodiment, the mold assembly includes a mold base and a mold body, the mold body is detachably arranged on the mold base, the outer mold hole is arranged on the mold body, the bolt is threadedly matched with the mold base, and the oil outlet hole is located on the mold base.

[0042] In some optional embodiments, the mounting portion 11 is located on the side of the inlet of the first guide channel 12, the first oil groove 13 is arranged at one end of the guide nozzle 10 close to the outlet of the first guide channel 12, and the second oil groove 22 is arranged at one end of the guide sleeve 20 close to the outlet of the second guide channel 21, so as to avoid the mounting portion 11 and facilitate the forming of the first oil groove 13 and the second oil groove 22.

[0043] In some optional embodiments, the guide sleeve 20 is a nylon guide sleeve 20. The nylon guide sleeve 20 can prevent the surface of the tube from being scratched or rubbed, thereby improving the quality of the tube blank in subsequent processes.

[0044] The above-mentioned tube head guiding device can be applied to tube drawing equipment, which includes: a frame, a drawing mechanism arranged on the frame, a mold assembly arranged on the frame, and a tube head guiding device as described above, wherein the guide nozzle 10 of the tube head guiding device is installed on the mold assembly through the mounting part 11 of the tube head guiding device.

[0045] In some optional embodiments, the mold assembly is provided with an outer mold hole, and the inner diameter of the guide sleeve 20 of the tube head guiding device is larger than the inner diameter of the outer mold hole. In this embodiment, the inner diameter of the guide sleeve 20 is 2 mm larger than the inner diameter of the outer mold hole, which is conducive to the smooth introduction of the tube head into the outer mold hole.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pipe head guiding device, characterized in that: include: Guide nozzle and guide sleeve; The guide nozzle is provided with a mounting portion and a first guide channel, the mounting portion is used to be connected to the mold assembly, and the first guide channel is provided with a first oil groove, which is connected to the outer side of the guide sleeve; The guide sleeve is detachably mounted in the first guide channel, a second guide channel is arranged on the guide sleeve, the second guide channel is communicated with the first guide channel, an inner diameter of the second guide channel is smaller than an inner diameter of the first guide channel, a second oil groove is arranged in the second guide channel, and the second oil groove is communicated with the first oil groove.

2. A pipe head guiding device according to claim 1, characterized in that: The first guide channel comprises an introduction section and a mounting section connected to each other, the inner diameter of the introduction section gradually decreases in a direction close to the mounting section, and the inner diameter of the introduction section is larger than the inner diameter of the mounting section and the inner diameter of the second guide channel; The first oil groove is arranged at the installation section, the guide sleeve is arranged in the installation section, and the second guide channel is communicated with the installation section.

3. A pipe head guiding device according to claim 1, characterized in that: The inner diameter of the second guide channel gradually decreases in a direction from an inlet to an outlet of the second guide channel.

4. A pipe head guiding device according to claim 2, characterized in that: In a cross section parallel to the extension axis of the first guide channel, an angle between two opposite inner walls of the second guide channel is greater than an angle between two opposite inner walls of the introduction section.

5. A pipe head guiding device according to any one of claims 1 to 4, characterized in that: The width of the first oil groove gradually increases in a direction away from the second oil groove.

6. A pipe head guiding device according to any one of claims 1 to 4, characterized in that: The mounting portion comprises two mounting ears respectively arranged on both sides of the guide nozzle, and the mounting ears are provided with mounting holes.

7. A pipe head guiding device according to any one of claims 1 to 4, characterized in that: The mounting portion is located at a side of the inlet of the first guide channel, the first oil groove is arranged at one end of the guide nozzle close to the outlet of the first guide channel, and the second oil groove is arranged at one end of the guide sleeve close to the outlet of the second guide channel.

8. A pipe head guiding device according to any one of claims 1 to 4, characterized in that: The guide sleeve is a nylon guide sleeve.

9. A pipe drawing device, characterized in that: include: A frame, a drawing mechanism arranged on the frame, a mold assembly arranged on the frame, and a tube head guiding device as described in any one of claims 1 to 8, wherein the guide nozzle of the tube head guiding device is installed on the mold assembly through the mounting portion of the tube head guiding device.

10. The tube drawing equipment according to claim 9, characterized in that: The mold assembly is provided with an outer mold hole, and the inner diameter of the guide sleeve of the pipe head guiding device is larger than the inner diameter of the outer mold hole.

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