Cold-drawing equipment for small-caliber seamless steel pipe

Abstract

The utility model discloses cold-drawing equipment for small-caliber seamless steel pipes, which sequentially comprises a cold-drawing seat, a rail and a cold-drawing trolley from front to back, a lubricating seat is arranged at the front end of the cold-drawing seat and comprises a seat body, a container, an oil spraying device and an oil scraping device, lubricating oil is arranged in the container, the oil spraying device comprises an oil guide pipe, a pump body and an oil spraying frame, and the oil spraying frame is arranged on the rail. The oil scraping device comprises a support, an oil scraper rotationally connected to the support and a driving mechanism driving the oil scraper to rotate, the oil scraper is a barrel, an elastic sleeve is fixed in the barrel, a horn-shaped opening is formed in the front end of the elastic sleeve, and a through hole corresponding to the outer diameter of a steel pipe is formed in the rear end of the elastic sleeve. The steel pipe cold-drawing device is provided with the lubricating seat, the lubricating seat automatically smears lubricating oil on the steel pipe before cold drawing of the steel pipe, and the using amount of the lubricating oil can be saved.

Description

Technical Field

[0001] The utility model relates to cold drawing equipment for small-caliber seamless steel pipes. Background Art

[0002] The cold drawing process of small-diameter seamless steel pipes is relatively simple. Generally, the surface is lubricated with lubricating oil manually in advance, and then one end of the pre-punched steel pipe is passed through the cold drawing seat and clamped on the trolley. The trolley moves along the track to cold draw the steel pipe.

[0003] However, in this process, there is still room for improvement in the process of applying lubricating oil to the steel pipes before cold drawing. Specifically, manual application of lubricating oil is time-consuming and labor-intensive; if multiple steel pipes are applied in advance, the lubricating oil is easily contaminated with dust, which can easily cause scratches during the cold drawing process; if each steel pipe is applied before cold drawing, the processing cycle will be reduced, thereby reducing the processing efficiency. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and provides a small-diameter seamless steel pipe cold drawing device equipped with a lubricating seat, which automatically applies lubricating oil to the steel pipe before cold drawing.

[0005] The technical scheme of the utility model is: a small-diameter seamless steel pipe cold drawing equipment, which comprises a cold drawing seat, a track and a cold drawing trolley arranged on the track from front to back, and a lubrication seat is also arranged at the front end of the cold drawing seat;

[0006] The lubricating seat comprises a seat body, a container arranged on the seat body, an oil spraying device arranged on one side above the container, an oil scraping device arranged on the other side above the container, and a cover body arranged on the top of the seat body, wherein lubricating oil is arranged in the container;

[0007] The oil pouring device comprises an oil guide pipe, a pump body and an oil pouring frame, one end of the oil guide pipe is located in the container, the other end of the oil guide pipe is connected to the oil pouring frame through the pump body, the oil pouring frame is an annular frame with an opening at the bottom, a lubricating oil channel is arranged in the oil pouring frame, and a plurality of oil spray ports are evenly distributed on the inner circumference of the oil pouring frame;

[0008] The oil scraper device comprises a bracket, an oil scraper rotatably connected to the bracket, and a driving mechanism for driving the oil scraper to rotate. The oil scraper is a cylinder, an elastic sleeve is fixed in the cylinder, the front end of the elastic sleeve has a trumpet-shaped opening, and the rear end of the elastic sleeve has a through hole corresponding to the outer diameter of the steel pipe;

[0009] The oil pouring rack and the elastic sleeve are coaxially arranged.

[0010] Furthermore, the cover body includes a main body and a cover arranged on the top of the main body, the main body is composed of a top plate and a surrounding plate arranged at the lower end of the top plate, the front and rear ends of the surrounding plate respectively have holes corresponding to the steel pipe, and the bottom of the surrounding plate is fixed to the top of the seat body.

[0011] Furthermore, the top of the seat body has a groove corresponding to the container, the container is arranged in the groove, and the top of the container is flush with the top of the seat body.

[0012] Furthermore, a counterweight is provided at the bottom end of the oil guide pipe.

[0013] Furthermore, the pump body is arranged on the top of the top plate and is located inside the cover, and the top of the oil pouring rack is fixed to the bottom of the top plate.

[0014] Furthermore, the driving mechanism is arranged on the top of the top plate and is located inside the cover, and the top of the bracket is fixed to the bottom of the top plate.

[0015] Furthermore, the driving mechanism includes a driving motor, a driving gear fixed on the output shaft of the driving motor, and a transmission gear rotatably connected to the top plate. The outer periphery of the middle part of the cylinder body has a gear ring, the driving gear is meshed with the transmission gear, and the transmission gear is also meshed with the gear ring.

[0016] Furthermore, the middle portion of the oil guide pipe is disposed inside the cover body, and the oil guide pipe passes through the middle portion of the cover body and is disposed above the seat body and close to the front end of the cover body.

[0017] Furthermore, a slot penetrating the groove is provided on one side of the seat body, and the container is inserted into the groove and connected to the groove through the slot.

[0018] Furthermore, a handle is provided on the outer side of the container.

[0019] The beneficial effects of the utility model are as follows: the utility model is equipped with a lubrication seat, the structure of the lubrication seat is simple, so that there is no need to manually apply lubricating oil to the surface of the steel pipe before cold drawing, the lubricating oil dripping or scraped off the lubricating seat can be reused, the amount of lubricating oil can be saved, and the manufacturing cost can be reduced to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a cross-sectional view of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the oil pouring rack in the utility model.

[0023] In the figure: a seat body 1, a container 2, an oil guide pipe 3, a pump body 4, an oil spray rack 5, an oil spray port 6, a bracket 7, a driving mechanism 8, a cylinder body 9, an elastic sleeve 10, a main body 11, a cover 12, a counterweight 13, and a handle 14. DETAILED DESCRIPTION

[0024] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0025] Combination Figure 1-3 As shown, a small-diameter seamless steel pipe cold drawing equipment comprises, from front to back, a cold drawing seat, a track and a cold drawing trolley arranged on the track, and a lubrication seat is also arranged at the front end of the cold drawing seat;

[0026] The lubricating seat comprises a seat body 1, a container 2 arranged on the seat body 1, an oil spraying device arranged on one side above the container 2, an oil scraping device arranged on the other side above the container 2, and a cover body arranged on the top of the seat body 1, wherein the container 2 is provided with lubricating oil;

[0027] The oil pouring device comprises an oil guide pipe 3, a pump body 4 and an oil pouring frame 5. One end of the oil guide pipe 3 is located in the container 2, and the other end of the oil guide pipe 3 is connected to the oil pouring frame 5 through the pump body 4. The oil pouring frame 5 is an annular frame with an opening at the bottom. The oil pouring frame 5 is provided with a lubricating oil channel. The inner circumference of the oil pouring frame 5 is evenly distributed with a plurality of oil spray ports 6.

[0028] The oil scraper device comprises a bracket 7, an oil scraper rotatably connected to the bracket 7, and a driving mechanism 8 for driving the oil scraper to rotate. The oil scraper is a cylinder 9, and an elastic sleeve 10 is fixed inside the cylinder 9. The front end of the elastic sleeve 10 has a trumpet-shaped opening, and the rear end of the elastic sleeve 10 has a through hole corresponding to the outer diameter of the steel pipe;

[0029] The oil pouring rack 5 and the elastic sleeve 10 are coaxially arranged.

[0030] The working principle of the above structure is: one end of the steel pipe passes through the lubrication seat and the cold drawing seat and is clamped by the trolley. When the steel pipe moves backward under the pull of the trolley, the steel pipe located in the lubrication seat first passes through the oil spraying rack 5, and the oil spraying holes on the oil spraying rack 5 spray lubricating oil to the outer wall of the steel pipe, and the excess lubricating oil falls back into the container 2; the steel pipe sprayed with lubricating oil continues to move forward to the continuously rotating scraper; the elastic sleeve 10 in the scraper spreads the lubricating oil on the outer wall of the steel pipe more evenly, and the excess lubricating oil is scraped off and discharged back into the container 2 from the bell mouth, and finally the steel pipe passes through the lubrication seat and enters the cold drawing seat to be cold drawn.

[0031] The beneficial effects of the above structure are: simple structure, no need to apply lubricating oil to the surface of the steel pipe before cold drawing, the dripping or scraped lubricating oil in the lubrication seat can be reused, the amount of lubricating oil can be saved, and the manufacturing cost can be reduced to a certain extent.

[0032] In another embodiment, in combination Figure 1 and Figure 2 As shown, the cover body includes a main body 11 and a cover 12 arranged on the top of the main body 11, and the main body 11 is composed of a top plate and a surrounding plate arranged at the lower end of the top plate, and the front and rear ends of the surrounding plate respectively have holes corresponding to the steel pipes, and the bottom of the surrounding plate is fixed to the top of the seat body 1.

[0033] In another embodiment, if Figure 1 As shown, the top of the seat body 1 has a groove corresponding to the container 2, the container 2 is arranged in the groove, and the top of the container 2 is flush with the top of the seat body 1.

[0034] In another embodiment, if Figure 1 As shown, a counterweight 13 is also provided at the bottom end of the oil guiding pipe 3 so that the bottom end of the oil guiding pipe 3 sinks to the bottom of the container 2 .

[0035] In another embodiment, if Figure 1 As shown, the pump body 4 is arranged on the top of the top plate and is located in the cover 12, and the top of the oil pouring rack 5 is fixed to the bottom of the top plate.

[0036] In another embodiment, if Figure 1 As shown, the driving mechanism 8 is arranged on the top of the top plate and is located in the cover 12, and the top of the bracket 7 is fixed to the bottom of the top plate.

[0037] The above structure enables the main bodies of the oil spraying device and the oil scraping device to be fixed on the cover body, so as to facilitate installation and disassembly.

[0038] In another embodiment, if Figure 1 As shown, the driving mechanism 8 includes a driving motor, a driving gear fixed on the output shaft of the driving motor, and a transmission gear rotatably connected to the top plate. The outer periphery of the middle part of the cylinder 9 has a gear ring, the driving gear is meshed with the transmission gear, and the transmission gear is also meshed with the gear ring.

[0039] In another embodiment, if Figure 1 As shown, the middle part of the oil guide pipe 3 is passed through the cover body, and the oil guide pipe 3 passes through the middle part of the cover body and is located above the seat body 1 and close to the front end of the cover body to avoid affecting the passage of the steel pipe and facilitate the operation of the oil guide pipe 3 through the hole at the front end of the enclosure.

[0040] In another embodiment, if Figure 2As shown, a slot penetrating the groove is also provided on one side of the seat body 1, and the container 2 is inserted into the groove through the slot to facilitate the container 2 to be drawn out for cleaning or replenishing lubricating oil.

[0041] In another embodiment, if Figure 2 As shown, a handle 14 is also provided on the outer side of the container 2 .

Claims

1. A cold drawing equipment for small-diameter seamless steel pipes, which comprises, from front to back, a cold drawing seat, a track and a cold drawing trolley arranged on the track, and is characterized in that: The front end of the cold drawing seat is also provided with a lubrication seat; The lubrication seat comprises a seat body (1), a container (2) arranged on the seat body (1), an oil sprinkling device arranged on one side above the container (2), an oil scraping device arranged on the other side above the container (2), and a cover body arranged on the top of the seat body (1); lubricating oil is provided in the container (2); The oil pouring device comprises an oil guide pipe (3), a pump body (4) and an oil pouring frame (5); one end of the oil guide pipe (3) is located in the container (2); the other end of the oil guide pipe (3) is connected to the oil pouring frame (5) through the pump body (4); the oil pouring frame (5) is an annular frame with an opening at the bottom; a lubricating oil channel is provided inside the oil pouring frame (5); and a plurality of oil spray ports (6) are evenly distributed on the inner circumference of the oil pouring frame (5); The oil scraper device comprises a bracket (7), an oil scraper rotatably connected to the bracket (7), and a driving mechanism (8) for driving the oil scraper to rotate, the oil scraper is a cylinder (9), an elastic sleeve (10) is fixed inside the cylinder (9), the front end of the elastic sleeve (10) has a trumpet-shaped opening, and the rear end of the elastic sleeve (10) has a through hole corresponding to the outer diameter of the steel pipe; The oil pouring rack (5) and the elastic sleeve (10) are coaxially arranged.

2. A small-diameter seamless steel pipe cold drawing equipment as claimed in claim 1, characterized in that: The cover body comprises a main body (11) and a cover (12) arranged on the top of the main body (11); the main body (11) is composed of a top plate and a surrounding plate arranged at the lower end of the top plate; the front and rear ends of the surrounding plate respectively have holes corresponding to the steel pipes; the bottom of the surrounding plate is fixed to the top of the seat body (1).

3. A small-diameter seamless steel pipe cold drawing equipment as claimed in claim 2, characterized in that: The top of the seat body (1) has a groove corresponding to the container (2), the container (2) is arranged in the groove, and the top of the container (2) is flush with the top of the seat body (1).

4. A small-diameter seamless steel pipe cold drawing equipment as claimed in claim 3, characterized in that: A counterweight (13) is also provided at the bottom end of the oil guide pipe (3).

5. A small-diameter seamless steel pipe cold drawing equipment as claimed in claim 4, characterized in that: The pump body (4) is arranged on the top of the top plate and is located inside the cover (12), and the top of the oil pouring rack (5) is fixed to the bottom of the top plate.

6. A small-diameter seamless steel pipe cold drawing equipment as claimed in claim 5, characterized in that: The driving mechanism (8) is arranged on the top of the top plate and is located inside the cover (12), and the top of the bracket (7) is fixed to the bottom of the top plate.

7. A small-diameter seamless steel pipe cold drawing equipment as claimed in claim 6, characterized in that: The driving mechanism (8) comprises a driving motor, a driving gear fixed on the output shaft of the driving motor, and a transmission gear rotatably connected to the top plate. The outer periphery of the middle part of the cylinder (9) is provided with a gear ring. The driving gear meshes with the transmission gear, and the transmission gear also meshes with the gear ring.

8. A small-diameter seamless steel pipe cold drawing equipment as claimed in claim 7, characterized in that: The middle portion of the oil guide pipe (3) is arranged inside the cover body, and the oil guide pipe (3) passes through the middle portion of the cover body and is located above the seat body (1) and close to the front end of the cover body.

9. A small-diameter seamless steel pipe cold drawing equipment as claimed in claim 8, characterized in that: A slot penetrating the groove is also provided on one side of the seat body (1), and the container (2) is inserted into the groove and connected to the groove through the slot.

10. A small-diameter seamless steel pipe cold drawing equipment as claimed in claim 9, characterized in that: The outer side of the container (2) is also provided with a handle (14).

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