Drawing and feeding device for precise seamless steel pipe

Abstract

The utility model discloses a drawing and feeding device for precise seamless steel tubes, and relates to the technical field of seamless steel tube production, a material table mechanism is installed on the front side of a table frame of a lifting sliding table, and a lifting brake mechanism meshed with a transmission rack is connected between tracks of a guide sliding rail in a sliding mode. The lifting sliding table and the lifting brake mechanism are connected through a zipper mechanism installed at the upper end of the supporting vertical frame support. According to the design, based on lifting braking of the lifting braking mechanism, under chain tensioning traction of the zipper mechanism, the material table mechanism is pushed to conduct lifting braking displacement, steel pipe raw materials are fed easily and conveniently in a plane feeding mode, operation is easy and convenient, meanwhile, safety is high, the flexible adaptability is better, and production efficiency is improved. Steel pipe raw materials of different sizes can be conveniently fed, then the material table mechanism is moved upwards to be horizontally aligned with the drawing machine head, and under the horizontal pushing characteristic of the material table mechanism, the steel pipe raw materials are pushed, drawn and fed.

Description

Technical Field

[0001] The utility model relates to the technical field of seamless steel pipe production, in particular to a drawing and feeding device for precision seamless steel pipes. Background Technique

[0002] Seamless steel pipes are formed by piercing a whole round steel, and there are no welds on the surface. They are usually produced and processed by hot rolling, cold rolling, cold drawing, extrusion, etc. Especially for the cold drawing production method, it is the main method for seamless steel pipe production at present. When cold drawing seamless steel pipes, a feeding device is usually required to convey the round steel raw materials for continuous mechanical cold drawing production and processing. As shown in a rapid feeding device for cold drawn sections (publication number CN218945949U) disclosed on the Chinese Patent Network, such a device uses a loading mechanism to stack the round steel raw materials, and then uses the discharging of the loading mechanism to discharge the round steel raw materials one by one into the feeding mechanism, and uses the feeding mechanism to push the raw materials into the drawing head for drawing work.

[0003] However, for the seamless steel pipe drawing and feeding devices adopted in the above-mentioned disclosed patents and the existing market, there are still some deficiencies: the existing method of stacking and unloading the steel pipe raw materials and then pushing and feeding them is usually only applicable to small-sized steel pipe raw materials, and has poor adaptability and relatively single flexible use performance for large-sized and heavy steel pipe raw materials. Therefore, the technical personnel in this field have provided a drawing and feeding device for precision seamless steel pipes to solve the problems raised in the above background technique. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a drawing and feeding device for precision seamless steel pipes, which solves the problem of relatively single flexible use performance of the existing seamless steel pipe drawing and feeding device mentioned in the above background technique.

[0005] To achieve the above purposes, the utility model is realized through the following technical solutions: A drawing and feeding device for precision seamless steel pipes, including a supporting vertical frame;

[0006] Lifting slide rails are symmetrically arranged at the front end of the bracket of the supporting vertical frame, and a lifting slide table is slidably connected to the lifting track of the lifting slide rails. A material table mechanism is installed on the front side of the table frame of the lifting slide table;

[0007] Two groups of guiding slide rails are symmetrically arranged in pairs at the rear end of the bracket of the supporting vertical frame. Transmission racks are symmetrically arranged on the opposite surfaces of the tracks of the guiding slide rails, and a lifting braking mechanism meshing with the transmission racks is slidably connected between the tracks of the guiding slide rails;

[0008] The lifting slide table and the lifting braking mechanism are connected by a zipper mechanism installed at the upper end of the bracket of the supporting vertical frame.

[0009] As a further technical solution of the utility model: The lifting and braking mechanism includes a braking box frame that slides along the guiding slide rail. Inside the box body of the braking box frame, two groups of braking shafts are symmetrically connected. In the middle of the shafts of the two groups of braking shafts, there are engaging mating gears, and at both ends of the shafts of the two groups of braking shafts, there are respectively transmission gears that are engaged with the transmission rack one by one.

[0010] As a further technical solution of the utility model: A transmission motor is installed at the bottom of the box of the braking box frame, and the transmission motor is connected to one of the braking shafts through a transmission belt.

[0011] As a further technical solution of the utility model: The zipper mechanism includes a support seat. At the top of the support of the support seat, a traction truss is installed. At both ends of the brackets of the traction truss, traction sprockets are connected. The gear ends of the traction sprockets are meshed with a lifting chain that is connected to the lifting slide and the lifting and braking mechanism.

[0012] As a further technical solution of the utility model: The material table mechanism includes a material table. Inside the frame of the material table, a pushing screw rod is rotatably connected. At one end of the shaft of the pushing screw rod, a pushing motor fixed on the material table is installed. And outside the shaft of the pushing screw rod, there is a pushing slide that is guided by the material table. At the top of the frame of the pushing slide, a pushing plate is installed.

[0013] As a further technical solution of the utility model: At the upper end of the frame of the material table, a material placing slot that is guided and adapted to the pushing plate is opened, and the material placing slot is of a V-shaped structure.

[0014] The utility model provides a drawing and feeding device for precision seamless steel pipes, which has the following beneficial effects compared with the prior art:

[0015] The seamless steel pipe drawing and feeding device of this design, based on the lifting and braking of the lifting and braking mechanism, under the tension traction of the chain of the zipper mechanism, promotes the lifting and braking displacement of the material table mechanism. When loading materials, the material table mechanism is lowered, and in the way of flat loading, the steel pipe raw materials can be easily and conveniently loaded. Its operation is simple and convenient, and at the same time, it has high safety, can avoid the falling risk brought by suspended loading, and has better flexible adaptability, which can facilitate the convenient loading of steel pipe raw materials of different sizes. Then the material table mechanism is lifted to be horizontally aligned with the drawing head, and under the horizontal pushing characteristic of the material table mechanism itself, the steel pipe raw materials are pushed for drawing and loading. Its overall structure has more stable safety performance and better flexible adaptability. Description of the Drawings

[0016] Figure 1 It is a structural schematic diagram of a drawing and feeding device for precision seamless steel pipes;

[0017] Figure 2 It is a schematic structural diagram of a zipper mechanism in a drawing and feeding device for precision seamless steel pipes;

[0018] Figure 3 It is a schematic structural diagram of a material table mechanism in a drawing and feeding device for precision seamless steel pipes;

[0019] Figure 4 It is a partial sectional view of a material table mechanism in a drawing and feeding device for precision seamless steel pipes;

[0020] Figure 5 It is a schematic structural diagram of a lifting braking mechanism in a drawing and feeding device for precision seamless steel pipes.

[0021] In the figure: 1, support vertical frame; 2, zipper mechanism; 21, support seat; 22, traction truss; 23, traction sprocket; 24, lifting chain; 3, lifting slide rail; 4, lifting slide table; 5, material table mechanism; 51, material table; 52, material placement slot; 53, pushing plate; 54, pushing lead screw; 55, pushing slide table; 56, pushing motor; 6, guiding slide rail; 7, transmission rack; 8, lifting braking mechanism; 81, braking box frame; 82, braking shaft; 83, mating gear; 84, transmission gear; 85, transmission motor; 86, transmission belt. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1-5, the present utility model provides a technical solution for a drawing and feeding device for precision seamless steel pipes: A drawing and feeding device for precision seamless steel pipes includes a supporting vertical frame 1. At the rear end of the bracket of the supporting vertical frame 1, two groups of guiding slide rails 6 are symmetrically arranged in pairs. On the opposite surfaces of the tracks of the guiding slide rails 6, driving racks 7 are symmetrically arranged. And between the tracks of the guiding slide rails 6, a lifting and braking mechanism 8 meshing with the driving rack 7 is slidably connected. The lifting and braking mechanism 8 includes a braking box frame 81 sliding along the guidance of the guiding slide rail 6. Inside the box body of the braking box frame 81, two groups of braking shafts 82 are symmetrically connected. In the middle of the shafts of the two groups of braking shafts 82, engaging gears 83 are arranged. At the bottom of the box of the braking box frame 81, a driving motor 85 is installed. And between the driving motor 85 and one of the braking shafts 82, they are driven and connected through a transmission belt 86. By controlling the driving motor 85 to work, through the intermediate transmission of the transmission belt 86, one of the braking shafts 82 is driven to rotate. Then, under the engaging rotation of the engaging gears 83, the two groups of braking shafts 82 are pushed to rotate symmetrically. As a driving source, the overall structure of the lifting and braking mechanism 8 is lifted and slid along the track direction of the guiding slide rail 6.

[0024] At both ends of the shafts of the two groups of braking shafts 82, driving gears 84 respectively meshing with the driving rack 7 are arranged. While the two groups of braking shafts 82 rotate symmetrically, the driving gears 84 at both ends of their shafts are driven to rotate symmetrically. By using the meshing transmission between the driving gears 84 and the driving rack 7, the meshing force is converted into a lifting thrust to push the lifting and braking mechanism 8 to lift and displace.

[0025] A zipper mechanism 2 installed at the upper end of the bracket of the supporting vertical frame 1 is connected between the lifting slide table 4 and the lifting and braking mechanism 8. The zipper mechanism 2 includes a supporting seat 21. At the top of the support of the supporting seat 21, a traction truss 22 is installed. And at both ends of the bracket of the traction truss 22, traction sprockets 23 are connected. At the gear end of the traction sprocket 23, a lifting chain 24 connected to the lifting slide table 4 and the lifting and braking mechanism 8 is meshingly connected. While the lifting and braking mechanism 8 performs lifting and braking, the lifting chain 24 in the zipper mechanism 2 is driven along the traction sprocket 23. Then, the lifting slide table 4 is pulled to lift and slide along the track of the lifting slide rail 3, and the feeding table mechanism 5 is lifted and displaced. The steel pipe raw material is pushed into the drawing head in a way of planar feeding and lifting and pushing.

[0026] The front end of the bracket of the support stand 1 is symmetrically provided with lifting slide rails 3, and a lifting slide table 4 is slidably connected to the lifting track of the lifting slide rails 3. A material table mechanism 5 is installed on the front side of the table frame of the lifting slide table 4. The material table mechanism 5 includes a material table 51. A pushing screw rod 54 is rotatably connected inside the table frame of the material table 51. One end of the shaft rod of the pushing screw rod 54 is installed with a pushing motor 56 fixed on the material table 51. A pushing slide table 55 guided by the material table 51 is sleeved outside the shaft rod of the pushing screw rod 54. A pushing plate 53 is installed at the top of the table frame of the pushing slide table 55. A material placement slot 52 adapted to guide the pushing plate 53 is opened at the upper end of the table frame of the material table 51. The material placement slot 52 is of a V-shaped structure. By controlling the pushing motor 56 to work, the pushing screw rod 54 is driven to rotate, and the combination of the pushing slide table 55 and the pushing plate 53 is pushed to slide horizontally along the material placement slot 52, and the steel pipe raw material in the material placement slot 52 is horizontally pushed into the drawing mechanism to complete its feeding process.

[0027] The working principle of the present utility model is as follows: When using the drawing feeding device to feed the steel pipe raw material, first control the driving motor 85 to work. By means of the intermediate transmission of the transmission belt 86, one group of braking shafts 82 is driven to rotate. Then, under the engagement rotation of the mating gears 83, the two groups of braking shafts 82 are pushed to rotate symmetrically. As the driving source, the transmission gears 84 at both ends of its shaft rod rotate symmetrically. By using the meshing transmission of the transmission gears 84 and the transmission rack 7, the meshing force is converted into a lifting thrust, and the lifting braking mechanism 8 is pushed to lift and displace along the track direction of the guiding slide rail 6. Then, while the lifting braking mechanism 8 lifts and displaces, the lifting chain 24 in the chain mechanism 2 is driven to be transmitted along the traction sprocket 23, and the lifting slide table 4 is driven to lift and slide along the track of the lifting slide rail 3, and the material table mechanism 5 is moved downward to be close to the ground. In the way of planar feeding, the steel pipe raw material of the specified model is fed into the material placement slot 52 of the material table mechanism 5. It is convenient and efficient for feeding, and has better safety control performance.

[0028] After the steel pipe raw material is fed, control the material table mechanism 5 to move upward to be horizontally opposite to the drawing head. Then control the pushing motor 56 to work, drive the pushing screw rod 54 to rotate, and push the combination of the pushing slide table 55 and the pushing plate 53 to slide horizontally along the material placement slot 52, and horizontally push the steel pipe raw material in the material placement slot 52 into the drawing mechanism to complete its feeding process. Its overall operation is safe and efficient, and the manual control intensity is relatively low.

[0029] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present utility model, several improvements and retouches can still be made, and these improvements and retouches should also be regarded as the protection scope of the present utility model. The structures, devices, and operation methods not specifically described and explained in the present utility model, without special explanation and limitation, are implemented according to the conventional means in the art.

Claims

1. A drawing and feeding device for a precision seamless steel pipe, characterized in that: It comprises a supporting stand (1); The front end of the support frame (1) is symmetrically provided with a lifting rail (3), and the lifting track of the lifting rail (3) is slidably connected to a lifting slide (4), and a material platform mechanism (5) is installed on the front side of the frame of the lifting slide (4); The rear end of the support frame (1) is provided with two sets of guide rails (6) in a symmetrical manner, and the opposite surfaces of the rails of the guide rails (6) are symmetrically provided with transmission racks (7), and the rails of the guide rails (6) are slidably connected with a lifting brake mechanism (8) meshing with the transmission rack (7); The lifting slide (4) and the lifting brake mechanism (8) are connected via a zipper mechanism (2) installed on the upper end of the support frame (1).

2. A drawing and feeding device for a precision seamless steel pipe according to claim 1, characterized in that: The lifting brake mechanism (8) comprises a brake box frame (81) which is guided and slidable along the guide rail (6); two groups of brake shafts (82) are symmetrically connected inside the box body of the brake box frame (81); mutually meshing matching gears (83) are arranged in the middle of the shafts of the two groups of brake shafts (82); and transmission gears (84) which mesh with the transmission racks (7) are arranged at both ends of the shafts of the two groups of brake shafts (82).

3. A drawing and feeding device for a precision seamless steel pipe according to claim 2, characterized in that: A transmission motor (85) is installed at the bottom of the brake box frame (81), and the transmission motor (85) is connected to one set of brake shafts (82) via a transmission belt (86).

4. The drawing and feeding device for a precision seamless steel pipe according to claim 1, characterized in that: The zipper mechanism (2) comprises a support seat (21), a traction truss (22) is installed on the top of the support seat of the support seat (21), and both ends of the bracket of the traction truss (22) are connected to a traction sprocket (23), and the gear end of the traction sprocket (23) is meshedly connected with a lifting chain (24) connected to the lifting slide (4) and the lifting brake mechanism (8).

5. The drawing and feeding device for a precision seamless steel pipe according to claim 1, characterized in that: The material platform mechanism (5) comprises a material platform (51), a frame of the material platform (51) internally rotatably connected with a push screw (54), one end of the shaft of the push screw (54) is provided with a push motor (56) fixed on the material platform (51), and the outer side of the shaft of the push screw (54) is sleeved with a push slide (55) guided by the material platform (51), and the top of the frame of the push slide (55) is provided with a push plate (53).

6. A drawing and feeding device for a precision seamless steel pipe according to claim 5, characterized in that: The upper end of the frame of the material platform (51) is provided with a material placement slot (52) which is adapted to guide the material pusher plate (53), and the material placement slot (52) is a V-shaped structure.

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