Cold drawing device for seamless tube production

Abstract

The utility model discloses a cold-drawing device for seamless tube production, which comprises a cold-drawing machine table, a die holder and a cold-drawing die, the die holder is mounted at a trackless table body of the cold-drawing machine table, the cold-drawing die is locked at the outward seat wall of the die holder through a bolt, and the cold-drawing device further comprises a tube cleaning mechanism. The pipe cleaning mechanism comprises an L-shaped upper mounting plate, a guide ring, a rubber scraping ring, an L-shaped bottom mounting plate, a vibration motor, a supporting plate, a connecting plate, a main inclined rod, an auxiliary inclined rod and a controller, and the L-shaped upper mounting plate is mounted at the top of the die holder on one side of the cold-drawing die. The pipe cleaning mechanism can carry out supporting vibration scale removal on the seamless pipe before cold drawing and then is matched with the small-caliber elastic scraping ring body, so that dirt on the pipe surface of the seamless pipe before the seamless pipe enters the cold drawing die is scraped off, the surface of the cold-drawn pipe subjected to dirt removal treatment is not prone to dirt, and the service life of the cold-drawn pipe is prolonged. And the outer surface of the seamless tube is effectively prevented from being partially folded in a linear or spiral direction after being drawn.

Description

Technical Field

[0001] The utility model relates to the technical field of seamless pipe production devices, in particular to a cold drawing device for seamless pipe production. Background Art

[0002] Thin-walled seamless steel pipes are made by perforating steel ingots or solid tubes into rough tubes, and then hot-rolled, cold-rolled or cold-drawn. The production process of cold-drawn seamless steel pipes is more complicated than that of hot-drawn. In appearance, cold-drawn seamless steel pipes are shorter than hot-drawn seamless steel pipes. Generally, the thickness of cold-drawn seamless steel pipes is smaller than that of hot-drawn seamless steel pipes, but the surface looks brighter than hot-drawn seamless steel pipes, the surface is not too rough, and the diameter does not have too many burrs. Thin-walled seamless steel pipes play an important role in my country's steel pipe industry.

[0003] After the seamless pipe is rolled out with a small tube head, the small tube head usually passes through the other side of the cold rolling mill die, and then the cold drawing pliers clamp the small tube head and bring the seamless pipe through the hole of the die to complete the cold drawing. If there are inclusions adhering to the surface of the pipe material during stacking, the outer surface of the seamless pipe will partially show linear or spiral folds after drawing, thereby affecting the cold drawing output quality of the seamless pipe. For this reason, we propose a cold drawing device for seamless pipe production. Utility Model Content

[0004] The main purpose of the utility model is to provide a cold drawing device for seamless pipe production. A pipe cleaning mechanism is arranged at the cold drawing machine table and the die base of the existing cold drawing machine. The pipe cleaning mechanism can support and vibrate the seamless pipe before cold drawing to clean dirt. Then, in cooperation with a small-diameter elastic scraping ring body, dirt on the seamless pipe surface before entering the cold drawing die is scraped off. Dirt is not easy to exist on the surface of the cold drawn pipe after the cleaning treatment, and local folding in a straight line or spiral direction on the outer surface of the seamless pipe after drawing is effectively avoided, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A cold drawing device for seamless pipe production comprises a cold drawing machine, a die base and a cold drawing die, wherein the die base is installed at the trackless table of the cold drawing machine, and the cold drawing die is locked with bolts at the outward seat wall of the die base, and also comprises a pipe cleaning mechanism, wherein the pipe cleaning mechanism comprises an L-shaped upper mounting plate, a guide ring, a rubber scraper ring, an L-shaped bottom mounting plate, a vibration motor, a support plate, a connecting plate, a main inclined rod, a secondary inclined rod and a controller, an L-shaped upper mounting plate is installed at the top of the die base on one side of the cold drawing die, and the vertical plate body of the L-shaped upper mounting plate extends to the die hole of the cold drawing die, A guide ring is welded at the end of the vertical plate body of the L-shaped upper mounting plate, which is maintained at the same center hole position as the cold drawing die, and a rubber scraper ring is bonded inside the guide ring. An L-shaped bottom mounting plate is installed in the table plate of the cold drawing machine below the die base, and a vibration motor is bolted to the vertical plate surface of the L-shaped bottom mounting plate, and a controller for controlling the vibration motor is bolted to the outside of the side seat wall of the die base, a support plate is welded to the top of the vertical plate body of the L-shaped bottom mounting plate away from the vibration motor, and a main diagonal rod and a secondary diagonal rod are welded to the surface of the support plate with a connecting plate to form a V-shaped frame.

[0007] Furthermore, connecting plates are arranged and welded on the surface of the support plate, and main diagonal rods and secondary diagonal rods are symmetrically welded on both sides of the connecting plates; after the connecting plates are arranged and welded on the surface of the support plate, the connecting plates can be welded with the main diagonal rods and secondary diagonal rods to form multiple groups of V-shaped frames, which is convenient for supporting seamless pipes.

[0008] Furthermore, bolts are locked between the short plate body of the L-shaped upper mounting plate and the mold base, and the short plate body of the L-shaped upper mounting plate extends out of the top of the mold base; the L-shaped upper mounting plate can be locked at the mold base with the help of bolts to obtain support.

[0009] Furthermore, the long plate body of the L-shaped bottom mounting plate is locked in the cold drawing machine with bolts, and the short plate body of the L-shaped bottom mounting plate is erected toward the pipe entry direction of the die base; the L-shaped bottom mounting plate can be locked in the cold drawing machine with the help of bolts to obtain support.

[0010] Furthermore, the ring hole diameter of the rubber scraper ring is smaller than the diameter of the inlet hole of the cold drawing die; the seamless pipe can pass through the rubber scraper ring before cold drawing at the cold drawing die, so that the dirt on the outer surface of the seamless pipe is scraped off, and then the relatively clean seamless pipe can pass through the inlet hole of the cold drawing die to the outside of the outlet hole for cold drawing.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model provides a pipe cleaning mechanism at the cold drawing machine table and the die base of the existing cold drawing machine. The pipe cleaning mechanism can carry out supporting vibration cleaning of the seamless pipe before cold drawing, and then cooperate with a small-diameter elastic scraping ring body to scrape off the dirt on the pipe surface of the seamless pipe before entering the cold drawing die. The surface of the cold drawn pipe after the cleaning treatment is not easy to have dirt, and the outer surface of the seamless pipe after drawing is effectively prevented from partially folding in a straight line or spiral direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a schematic diagram of the overall structure of a cold drawing device for seamless pipe production.

[0014] Figure 2 The utility model discloses an exploded view of a pipe cleaning mechanism of a cold drawing device for seamless pipe production.

[0015] In the figure: 1. cold drawing machine; 2. die base; 3. cold drawing die; 4. pipe cleaning mechanism; 5. L-shaped upper mounting plate; 6. guide ring; 7. rubber scraper ring; 8. L-shaped bottom mounting plate; 9. vibration motor; 10. support plate; 11. connecting plate; 12. main inclined rod; 13. auxiliary inclined rod; 14. controller. DETAILED DESCRIPTION

[0016] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0017] like Figure 1-2 As shown, a cold drawing device for seamless pipe production includes a cold drawing machine 1, a die base 2 and a cold drawing die 3. The die base 2 is installed at the trackless platform of the cold drawing machine 1, and the cold drawing die 3 is locked with bolts at the outward seat wall of the die base 2. It also includes a pipe cleaning mechanism 4, and the pipe cleaning mechanism 4 includes an L-shaped upper mounting plate 5, a guide ring 6, a rubber scraper ring 7, an L-shaped bottom mounting plate 8, a vibration motor 9, a support plate 10, a connecting plate 11, a main inclined rod 12, a secondary inclined rod 13 and a controller 14. The top of the die base 2 on one side of the cold drawing die 3 is installed with an L-shaped upper mounting plate 5, and the vertical plate body of the L-shaped upper mounting plate 5 extends to the cold drawing die 3. The end of the vertical plate body of the L-shaped upper mounting plate 5 is welded with a guide ring 6 which is maintained at the same center hole position as the cold drawing die 3, and a rubber scraper ring 7 is bonded inside the guide ring 6. An L-shaped bottom mounting plate 8 is installed in the table plate of the cold drawing machine table 1 below the die base 2, and a vibration motor 9 is bolted to the vertical plate surface of the L-shaped bottom mounting plate 8. A controller 14 for controlling the vibration motor 9 is bolted to the outside of the side seat wall of the die base 2. A support plate 10 is welded to the top of the vertical plate body of the L-shaped bottom mounting plate 8 away from the vibration motor 9, and a main diagonal rod 12 and a secondary diagonal rod 13 are welded to the surface of the support plate 10 with a connecting plate 11 to form a V-shaped frame.

[0018] Among them, the surface of the support plate 10 is arranged and welded with connecting plates 11, and the main diagonal rods 12 and the secondary diagonal rods 13 are symmetrically welded on both sides of the connecting plates 11; after the connecting plates 11 are arranged and welded on the surface of the support plate 10, the connecting plates 11 can be welded with the main diagonal rods 12 and the secondary diagonal rods 13 to form multiple groups of V-shaped frames, which is convenient for supporting seamless pipes.

[0019] Among them, bolts are locked between the short plate body of the L-shaped upper mounting plate 5 and the mold base 2, and the short plate body of the L-shaped upper mounting plate 5 extends out of the top of the mold base 2; the L-shaped upper mounting plate 5 can be locked at the mold base 2 with the help of bolts to obtain support.

[0020] Among them, the long plate body of the L-shaped bottom mounting plate 8 is locked in the cold drawing machine 1 with bolts, and the short plate body of the L-shaped bottom mounting plate 8 is upright toward the pipe entry direction of the die base 2; the L-shaped bottom mounting plate 8 can be locked in the cold drawing machine 1 with the help of bolts to obtain support.

[0021] Among them, the ring hole diameter of the rubber scraper ring 7 is smaller than the diameter of the inlet hole of the cold drawing die 3; the seamless pipe can pass through the rubber scraper ring 7 before cold drawing at the cold drawing die 3, so that the dirt on the outer surface of the seamless pipe is scraped off, and then the relatively clean seamless pipe can be cold drawn from the inlet hole of the cold drawing die 3 to the outside of the outlet hole.

[0022] It should be noted that the utility model is a cold drawing device for seamless pipe production. When the L-shaped upper mounting plate 5 of the cleaning mechanism 4 is bolted on the die base 2, the L-shaped bottom mounting plate 8 can be bolted in the cold drawing machine 1 to obtain support, and then the seamless pipe can be placed in the V-shaped frame formed by welding the connecting plate 11, the main inclined rod 12 and the auxiliary inclined rod 13, and then the vibration motor 9 is powered on by the controller 14, and under the influence of the vibration of the vibration motor 9, the support plate 10 on one side of the L-shaped bottom mounting plate 8 vibrates with the V-shaped frame, so that the V-shaped frame The seamless pipe inside is affected by the vibration to remove dirt on the surface of its own pipe wall, which promotes the loosening and falling of dirt on the outside of the pipe wall. Then the vibration motor 9 is turned off, and the seamless pipe can be passed through the rubber scraper ring 7 of the guide ring 6 and continue to pass through the cold drawing die 3 and the die base 2. Then the cold drawing machine 1 can be equipped with a screw or chain-driven cold drawing pliers to clamp the small pipe head of the seamless pipe and bring the seamless pipe through the hole of the cold drawing die to complete the cold drawing. The surface of the cold drawn pipe after the cleaning treatment is not easy to have dirt, which avoids the local folding of the outer surface of the seamless pipe in a straight line or spiral direction after drawing.

[0023] It should be noted that the utility model is a cold drawing device for seamless pipe production. The components in the utility model are all components known to technical personnel in the field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods.

[0024] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A cold drawing device for seamless pipe production, comprising a cold drawing machine (1), a die base (2) and a cold drawing die (3), wherein the die base (2) is installed on the trackless table of the cold drawing machine (1), and the cold drawing die (3) is bolted on the outward seat wall of the die base (2), characterized in that: The invention also comprises a pipe cleaning mechanism (4), wherein the pipe cleaning mechanism (4) comprises an L-shaped upper mounting plate (5), a guide ring (6), a rubber scraper ring (7), an L-shaped bottom mounting plate (8), a vibration motor (9), a support plate (10), a connecting plate (11), a main inclined rod (12), an auxiliary inclined rod (13) and a controller (14); an L-shaped upper mounting plate (5) is installed on the top of the die base (2) on one side of the cold drawing die (3), and a vertical plate body of the L-shaped upper mounting plate (5) extends toward the die hole of the cold drawing die (3); a guide ring is welded at the end of the vertical plate body of the L-shaped upper mounting plate (5) so as to be maintained at the same central hole position as the cold drawing die (3); (6), and a rubber scraper ring (7) is bonded inside the guide ring (6), an L-shaped bottom mounting plate (8) is installed inside the table of the cold drawing machine (1) below the die base (2), and a vibration motor (9) is bolted to the vertical plate surface of the L-shaped bottom mounting plate (8), and a controller (14) for controlling the vibration motor (9) is bolted to the outside of the side seat wall of the die base (2), and a support plate (10) is welded to the top of the vertical plate body of the L-shaped bottom mounting plate (8) away from the vibration motor (9), and a main inclined rod (12) and a secondary inclined rod (13) are welded to the surface of the support plate (10) with a connecting plate (11) to form a V-shaped frame.

2. A cold drawing device for seamless pipe production according to claim 1, characterized in that: The surface of the support plate (10) is welded with connecting plates (11), and main diagonal bars (12) and auxiliary diagonal bars (13) are symmetrically welded on both sides of the connecting plates (11).

3. A cold drawing device for seamless pipe production according to claim 1, characterized in that: Bolts are locked between the short plate body of the L-shaped upper mounting plate (5) and the mold base (2), and the short plate body of the L-shaped upper mounting plate (5) extends out of the top of the mold base (2).

4. A cold drawing device for seamless pipe production according to claim 1, characterized in that: The long plate body of the L-shaped bottom mounting plate (8) is locked in the cold drawing machine (1) by bolts, and the short plate body of the L-shaped bottom mounting plate (8) stands upright in the pipe entry direction of the die base (2).

5. A cold drawing device for seamless pipe production according to claim 1, characterized in that: The diameter of the ring hole of the rubber scraper ring (7) is smaller than the diameter of the die entry hole of the cold drawing die (3).

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