Cold drawing mechanism for round steel production

Abstract

The invention discloses a cold drawing mechanism for round steel production, which comprises a fixed table, a traction stretching mechanism, a bearing seat, a bearing, a die, a clamping column, a push-pull device, a servo motor, an oil loading groove, a supporting plate and an oil outlet pipe, the die is a horizontally arranged cylinder, the bearing is mounted on the outer wall of the die, the bearing is mounted on the bearing seat fixed on the fixed table, and the clamping column is fixed on the bearing seat. A gear ring is installed on the outer wall of the bearing and meshed with a gear, the gear is connected with a servo motor, the servo motor is installed on an installation frame, the installation frame is fixed to the fixing table, and a plurality of die holes parallel to the central axis of the die are formed in the die. The central axes of all the die holes are positioned on a cylindrical surface coaxial with the die; the bearing and the gear ring are both installed on the transversely-arranged cylindrical die, and the gear ring is matched with the gear, so that the die can achieve rapid switching of die holes in a rotating mode.

Description

Technical Field

[0001] The present invention relates to the technical field of profiled steel, in particular to the technical field of cold drawing of round steel. Background Art

[0002] Round steel refers to solid long steel bars with a circular cross-section, and its specifications are expressed in millimeters of diameter. Round steel is divided into three types: hot-rolled, forged, and cold-drawn. During the production process, round steel needs to be cold-drawn, and after cold-drawing, it leaves the main body of the cold-drawing mechanism.

[0003] The existing patent CN222198339U discloses a cold-drawing mechanism for round steel production, which realizes the rapid switching of the discharge holes that meet the production requirements by adjusting the up and down positions of the die with different discharge holes; however, when the die is stressed, the slider on the die will be subjected to a large axial force, and the slider is prone to deformation, resulting in hindered movement of the die.

[0004] The existing patent CN216095610U discloses a cold-drawing mechanism for round steel production, which uses a brush ring to brush off the sundries on the round steel raw material, but it can only brush off the sundries and cannot lubricate the round steel raw material. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems in the prior art and propose a cold-drawing mechanism for round steel production, which can enable...

[0006] To achieve the above object, the present invention provides a cold drawing mechanism for round steel production, including a fixed table, a traction and stretching mechanism, a bearing seat, a bearing, a die, a clamping column, a push-pull device, a servo motor, an oil filling tank, a support plate and an oil outlet pipe. The die is a horizontally arranged cylinder, and a bearing is installed on the outer wall of the die. The bearing is installed on a bearing seat fixed on the fixed table. A gear ring is installed on the outer wall of the bearing, and the gear ring meshes with a gear. The gear is connected to a servo motor, and the servo motor is installed on a mounting frame. The mounting frame is fixed on the fixed table. A plurality of die holes parallel to the central axis of the die are provided on the die, and the central axes of all die holes are located on a cylindrical surface coaxial with the die. A plurality of clamping components corresponding to the die holes one by one are provided on the die. The clamping component is composed of clamping holes located at both ends of the die. A plurality of push-pull devices corresponding to the clamping holes in the clamping component corresponding to the lowermost die hole on the die are fixed on the fixed table. The push-pull device is connected to the clamping column, and the clamping column is adapted to the clamping hole. The clamping column is inserted into the clamping hole. An oil filling tank is opened on the fixed table, and the oil filling tank is located on the feeding side of the die. A support plate is provided above the oil filling tank. The support plate is installed on a connecting column, and the connecting column is fixed to the inside of the oil filling tank. A downward oil outlet pipe is provided above the support plate. An oil outlet hole is provided on the oil filling tank, and a circulation pipe is connected between the oil outlet hole and the oil outlet pipe. A oil pump is installed on the circulation pipe. A traction and stretching mechanism is connected to one side of the fixed table, and the traction and stretching mechanism is located on the discharging side of the die.

[0007] Preferably, the clamping component is composed of four clamping holes, and two clamping holes are provided at each end of the die. The two clamping holes on the same side of the die are respectively located on both sides of the die hole.

[0008] Preferably, the clamping hole is a tapered hole, the clamping column is a tapered column adapted to the clamping hole, and the minimum outer diameter of the tapered column is greater than the minimum inner diameter of the tapered hole.

[0009] Preferably, the support plate is a downwardly convex semi-circular ring.

[0010] Preferably, the connecting column is a vertically arranged square column. An auxiliary block is provided at the bottom of the support plate, and a jack adapted to the connecting column is provided at the bottom end of the auxiliary block. The jack is inserted on the connecting column.

[0011] Preferably, the lower projection of the support plate completely falls within the oil filling tank.

[0012] Preferably, a return groove is provided on the fixed table. The return groove is parallel to the central axis of the die and is located directly below the straight line where the central axis of the die is located. One end of the return groove is communicated with the oil filling tank, and the other end of the return groove is located on the discharging side of the die.

[0013] Preferably, the bottom wall of the reflux tank slopes upward from the side connected to the oil filling tank.

[0014] Preferably, a filter screen is installed on the oil outlet hole Advantages of the present invention: In the present invention, both the bearing and the gear ring are installed on a horizontally placed cylindrical mold. The gear ring cooperates with the gear, enabling the mold to quickly switch the die holes by rotation; the clamping columns and the clamping holes cooperate with each other, enabling the mold to be firmly clamped and withstand a large radial force, making the mold not easily damaged; the setting of the oil outlet pipe can lubricate the round steel raw material and wash away some impurities from the round steel raw material.

[0015] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings. Description of the Drawings

[0016] Figure 1 is the front view of the cold drawing mechanism for round steel production of the present invention; Figure 2 is the side view of the mold of the cold drawing mechanism for round steel production of the present invention.

[0017] In the figure: 1 - fixed table, 2 - mold, 3 - oil filling tank, 4 - traction and stretching mechanism, 10 - reflux tank, 11 - bearing seat, 12 - bearing, 15 - gear ring, 16 - gear, 17 - servo motor, 20 - die hole, 21 - clamping hole, 22 - clamping column, 23 - push - pull device, 30 - connecting column, 31 - support plate, 32 - auxiliary block, 35 - oil outlet pipe, 36 - oil outlet hole. Detailed Embodiment

[0018] Embodiment 1: Refer to Figure 1 、 Figure 2 , the cold drawing mechanism for round steel production of the present invention includes a fixed table 1, a traction and stretching mechanism 4, a bearing seat 11 of a bearing 12, a bearing 12, a mold 2, a clamping column 22, a push - pull device 23, a servo motor 17, an oil filling tank 3, a support plate 31 and an oil outlet pipe 35. The mold 2 is a horizontally arranged cylinder, and a bearing 12 is installed on the outer wall of the mold 2. The bearing 12 is installed on a bearing seat 11 fixed on the fixed table 1.

[0019] A gear ring 15 is installed on the outer wall of the bearing 12. The gear ring 15 meshes with a gear 16, and the gear 16 is connected to a servo motor 17. The servo motor 17 is installed on a mounting frame, and the mounting frame is fixed on the fixed table 1.

[0020] The mold 2 is provided with a plurality of mold holes 20 parallel to the central axis of the mold 2, and the central axes of all the mold holes 20 are located on a cylindrical surface coaxial with the mold 2. The mold 2 is provided with a plurality of clamping assemblies corresponding to the mold holes 20 one by one. The clamping assembly is composed of clamping holes 21 located at both ends of the mold 2. A plurality of push-pull devices 23 corresponding to the clamping holes 21 in the clamping assembly corresponding to the lowermost mold hole 20 of the mold 2 are fixed on the fixed table 1. The push-pull device 23 is an oil cylinder or a cylinder. The push-pull device 23 is connected to a clamping column 22. The clamping column 22 is adapted to the clamping hole 21, and the clamping column 22 is inserted into the clamping hole 21.

[0021] An oil filling groove 3 is formed on the fixed table 1. The oil filling groove 3 is located on the feeding side of the mold 2. A support plate 31 is arranged above the oil filling groove 3. The support plate 31 is installed on a connecting column 30, and the connecting column 30 is fixed inside the oil filling groove 3. A downward oil outlet pipe 35 is arranged above the support plate 31. An oil outlet hole 36 is formed on the oil filling groove 3. A circulation pipe is connected between the oil outlet hole 36 and the oil outlet pipe 35, and an oil pump is installed on the circulation pipe.

[0022] One side of the fixed table 1 is connected with a traction and stretching mechanism 4, and the traction and stretching mechanism 4 is located on the discharging side of the mold 2.

[0023] In order to prevent impurities from entering the circulation pipe, a filter screen is installed on the oil outlet hole 36.

[0024] Embodiment 2: In order to ensure that the mold 2 can withstand a greater axial force, the clamping assembly is composed of four clamping holes 21. Two clamping holes 21 are arranged at both ends of the mold 2, and the two clamping holes 21 on the same side of the mold 2 are respectively located on both sides of the mold hole 20.

[0025] Embodiment 3: In order to facilitate the insertion of the clamping column 22 into the clamping hole 21, the clamping hole 21 is a tapered hole, and the clamping column 22 is a tapered column adapted to the clamping hole 21. The minimum outer diameter of the tapered column is greater than the minimum inner diameter of the tapered hole.

[0026] Embodiment 4: The support plate 31 is in a downward convex semi-circular shape.

[0027] The connecting column 30 is a vertically arranged square column. An auxiliary block 32 is arranged at the bottom of the support plate 31. A jack adapted to the connecting column 30 is arranged at the bottom end of the auxiliary block 32, and the jack is inserted on the connecting column 30.

[0028] Embodiment 5: In order to ensure that the oil can be recycled as much as possible, the lower projection of the support plate 31 completely falls within the oil filling groove 3.

[0029] A return groove 10 is provided on the fixed table 1. The return groove 10 is parallel to the central axis of the mold 2 and is located directly below the straight line where the central axis of the mold 2 is located. One end of the return groove 10 is communicated with the oil filling tank 3, and the other end of the return groove 10 is located on the discharging side of the mold 2.

[0030] The bottom wall of the return groove 10 slopes upward from the side connected to the oil filling tank 3.

[0031] Working process of the present invention: During the working process of the cold drawing mechanism for round steel production of the present invention, when it is necessary to replace the die hole 20, the pushing and pulling device 23 separates the clamping rod 22 from the clamping hole 21, and then the servo motor 17 drives the gear 16 to rotate. The gear 16 drives the gear ring 15 and the mold 2 to rotate. When the die hole 20 to be used is located at the lowest position, the servo motor 17 stops rotating, and the pushing and pulling device 23 drives the clamping rod 22 to insert into the clamping hole 21 until the clamping rod 22 clamps the mold 2.

[0032] When the round steel raw material passes below the oil outlet pipe 35, the cold drawing oil leaving the oil outlet pipe 35 will fall onto the round steel raw material, and the round steel raw material is lubricated. After the round steel passes through the die hole 20, it is deformed into a round steel with the target diameter, and the round steel is pulled by the traction and stretching mechanism 4.

[0033] During the whole process, the oil dripping from the pallet 31 will fall into the oil filling tank 3, and the oil dripping from the round steel will fall into the return groove 10 and finally flow back into the oil filling tank 3. The oil in the oil filling tank 3 is supplied to the oil outlet pipe 35 under the drive of the oil pump.

[0034] The above embodiments are illustrative of the present invention, not limiting the present invention. Any simple transformation of the present invention belongs to the protection scope of the present invention.

Claims

1. A cold drawing mechanism for round steel production, characterized in that: It includes a fixed table (1), a traction and stretching mechanism (4), a bearing (12) seat (11), a bearing (12), a mold (2), a clamping column (22), a push-pull device (23), a servo motor (17), an oil filling tank (3), a support plate (31) and an oil outlet pipe (35). The mold (2) is a horizontally arranged cylinder. An bearing (12) is installed on the outer wall of the mold (2), and the bearing (12) is installed on a bearing (12) seat (11) fixed on the fixed table (1). A gear ring (15) is installed on the outer wall of the bearing (12), the gear ring (15) meshes with a gear (16), the gear (16) is connected to a servo motor (17), the servo motor (17) is installed on a mounting frame, and the mounting frame is fixed on the fixed table (1). A number of die holes (20) parallel to the central axis of the mold (2) are provided on the mold (2), and the central axes of all the die holes (20) are located on a cylindrical surface coaxial with the mold (2). A number of clamping assemblies corresponding to the die holes (20) one by one are provided on the mold (2), and the clamping assembly consists of clamping holes (21) located at both ends of the mold (2). A number of push-pull devices (23) corresponding to the clamping holes (21) in the clamping assembly corresponding to the lowermost die hole (20) of the mold (2) are fixed on the fixed table (1). The push-pull device (23) is connected to the clamping column (22), the clamping column (22) is adapted to the clamping hole (21), and the clamping column (22) is inserted into the clamping hole (21). An oil filling tank (3) is opened on the fixed table (1), and the oil filling tank (3) is located on the feeding side of the mold (2). A support plate (31) is provided above the oil filling tank (3), the support plate (31) is installed on a connecting column (30), and the connecting column (30) is fixed inside the oil filling tank (3). A downward oil outlet pipe (35) is provided above the support plate (31). An oil outlet hole (36) is provided on the oil filling tank (3), and a circulation pipe is connected between the oil outlet hole (36) and the oil outlet pipe (35), and an oil pump is installed on the circulation pipe. A traction and stretching mechanism (4) is connected to one side of the fixed table (1), and the traction and stretching mechanism (4) is located on the discharging side of the mold (2).

2. The cold drawing mechanism for round steel production according to claim 1, characterized in that: The clamping assembly consists of four clamping holes (21), and two clamping holes (21) are provided at each end of the mold (2). The two clamping holes (21) on the same side of the mold (2) are respectively located on both sides of the die hole (20).

3. The cold drawing mechanism for round steel production according to claim 1, characterized in that: The clamping hole (21) is a tapered hole, the clamping column (22) is a tapered column adapted to the clamping hole (21), and the minimum outer diameter of the tapered column is greater than the minimum inner diameter of the tapered hole.

4. The cold drawing mechanism for round steel production according to claim 1, characterized in that: The support plate (31) is a downwardly convex semi-circular ring.

5. The cold drawing mechanism for round steel production according to claim 1, characterized in that: The connecting column (30) is a vertically arranged square column. An auxiliary block (32) is provided at the bottom of the support plate (31), and a jack adapted to the connecting column (30) is provided at the bottom end of the auxiliary block (32), and the jack is inserted on the connecting column (30).

6. The cold drawing mechanism for round steel production according to claim 1, characterized in that: The lower projection of the support plate (31) completely falls within the oil filling tank (3).

7. The cold drawing mechanism for round steel production according to claim 1, characterized in that: A return groove (10) is provided on the fixed table (1). The return groove (10) is parallel to the central axis of the mold (2). The return groove (10) is located directly below the straight line where the central axis of the mold (2) is located. One end of the return groove (10) is communicated with the oil filling tank (3), and the other end of the return groove (10) is located on the discharge side of the mold (2).

8. The cold drawing mechanism for round steel production according to claim 7, characterized in that: The bottom wall of the return groove (10) slopes upward from the side connected to the oil filling tank (3).

9. The cold drawing mechanism for round steel production according to any one of claims 1-8, characterized in that: A filter screen is installed on the oil outlet hole (36).

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