Energy-saving cold drawing machine for corrosion-resistant stainless steel pipe
By designing a bidirectional hydraulic cylinder and a drawing head, combined with a guide rail and a motor-driven rotary table, continuous cold drawing of stainless steel tubes is achieved, solving the problem of existing cold drawing machines requiring empty-load reset, improving efficiency and reducing energy consumption.
Patent Information
- Application Number
- CN202520324700.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-02-27
AI Technical Summary
Existing cold drawing machines require empty machine reset after each drawing operation, resulting in unnecessary energy consumption.
The design employs a bidirectional hydraulic cylinder and a drawing head. By alternating the use of cold drawing dies on the first and second die sets, stainless steel tubes are cold drawn, avoiding empty machine reset. The guide rail and motor-driven rotary table enable rapid die replacement and continuous drawing of stainless steel tubes.
This improved drawing efficiency, reduced energy consumption, and enabled a highly efficient cold drawing process for stainless steel pipes.
Smart Images

Figure CN223761756U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stainless steel pipe processing, and in particular to an energy-saving cold drawing machine for corrosion-resistant stainless steel pipes. Background Technology
[0002] Cold drawing machines are used to draw ferrous and non-ferrous metal bars at room temperature and to perform secondary processing on hot-rolled and extruded rough tubes. They are the main processing equipment for producing small-diameter, precision, thin-walled, and high-mechanical-performance tubes, and are widely used in the processing of metal materials such as steel, copper, and aluminum. They are commonly used to manufacture products such as steel wire, steel pipes, profiles, mechanical parts, electrical components, and vehicle parts.
[0003] However, existing cold drawing machines require a reset after each drawing operation, resulting in unnecessary energy consumption.
[0004] Therefore, it is essential to invent an energy-saving cold drawing machine for corrosion-resistant stainless steel pipes. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides an energy-saving cold drawing machine for corrosion-resistant stainless steel pipes, including a bidirectional hydraulic cylinder, which is fixedly installed on a support mechanism. Each of the two output ends of the bidirectional hydraulic cylinder is fixedly installed with a drawing head, which is slidably connected to the support mechanism. A first mold base is fixedly installed at one end of the support mechanism, and a second mold base is fixedly installed at the other end of the support mechanism.
[0006] Preferably, a cold-drawing mold is fixedly installed on each of the first mold base and the second mold base.
[0007] Preferably, the support mechanism includes a base, columns, a first guide rail, and a second guide rail. The bidirectional hydraulic cylinder is fixedly mounted on the base via several columns. The bidirectional hydraulic cylinder is arranged parallel to the base. The first guide rail and the second guide rail are fixedly mounted on both sides above the base, respectively. The column is located between the first guide rail and the second guide rail. One end of the first guide rail is fixedly connected to one of the columns, and the other end of the first guide rail is fixedly connected to a first mold base. One end of the second guide rail is fixedly connected to another column, and the other end of the second guide rail is fixedly connected to a second mold base. The first guide rail and the second guide rail are arranged parallel to the base. The pulling head is slidably connected to the corresponding first guide rail and the second guide rail.
[0008] Preferably, a cavity is formed between the first guide rail and the second guide rail and the base.
[0009] Preferably, the first guide rail and the second guide rail each have a feeding chamber extending from top to bottom, and the feeding chamber is connected to the cavity.
[0010] Preferably, the cold drawing die includes a motor and a rotary table. The output end of the motor is fixedly mounted on the rotary table, and the die is detachably fixedly mounted on the rotary table. The motor is fixedly mounted on the corresponding first die base and second die base, and the rotary table is rotatably connected to the corresponding first die base and second die base.
[0011] Preferably, the mold includes a mold base, a fixed platform, and mold cavities. The fixed platform is fixedly installed at the bottom of the mold base. The mold base is detachably fixedly connected to the rotating platform through the fixed platform. The circumferential surface of the mold base is provided with a number of mold cavities of different specifications in a circular array. Each mold cavity is detachably fixedly installed with a mold.
[0012] Preferably, each of the first mold base and the second mold base has an installation cavity above it. The motor is fixedly installed in the corresponding installation cavity, and the rotary table is rotatably installed in the corresponding installation cavity, with the top end of the rotary table protruding from the installation cavity.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] The overall design of this utility model allows for alternating cold drawing of stainless steel tubes, avoiding empty resetting. This not only improves drawing efficiency but also reduces energy consumption. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0016] Figure 2 This is a schematic diagram of the exploded structure of the cold drawing die of this utility model.
[0017] Figure 3 This is a partially enlarged structural diagram of point A of this utility model.
[0018] In the picture:
[0019] 1. Base; 2. Column; 3. Two-way hydraulic cylinder; 4. Pulling head; 5. First guide rail; 6. Second guide rail; 7. Cavity; 8. Discharge cavity; 9. First mold base; 10. Mounting cavity; 11. Second mold base; 12. Motor; 13. Rotary table; 14. Mold base; 15. Fixed platform; 16. Mold cavity. Detailed Implementation
[0020] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0021] The present invention will be further described below with reference to the accompanying drawings:
[0022] Example:
[0023] As attached Figure 1 To be continued Figure 3 As shown:
[0024] This utility model provides an energy-saving cold drawing machine for corrosion-resistant stainless steel pipes, including a bidirectional hydraulic cylinder 3, which is fixedly installed on a support mechanism. Each of the two output ends of the bidirectional hydraulic cylinder 3 is fixedly installed with a drawing head 4, which is slidably connected to the support mechanism. A first mold base 9 is fixedly installed at one end of the support mechanism, and a second mold base 11 is fixedly installed at the other end. By coordinating the bidirectional hydraulic cylinder 3 with the drawing head 4, after the drawing head 4 is driven by one end of the bidirectional hydraulic cylinder 3 to cold draw the stainless steel pipe through the cold drawing mold on the first mold base 9, the drawing head 4 at the other end of the bidirectional hydraulic cylinder 3 can be brought close to the side of the second mold base 11. In this way, the stainless steel pipe can be cold drawn through the cold drawing mold on the second mold base 11. This alternation avoids empty machine reset and reduces energy consumption.
[0025] In this embodiment, cold drawing dies are fixedly installed on the first mold base 9 and the second mold base 11, so that both ends of the bidirectional hydraulic cylinder 3 can cold draw stainless steel tubes.
[0026] In this embodiment, the support mechanism includes a base 1, a column 2, a first guide rail 5, and a second guide rail 6. The bidirectional hydraulic cylinder 3 is fixedly installed on the base 1 by several columns 2 to ensure the stability between the bidirectional hydraulic cylinder 3 and the base 1. The bidirectional hydraulic cylinder 3 is arranged parallel to the base 1. The first guide rail 5 and the second guide rail 6 are fixedly installed on both sides above the base 1 to support the pulling heads 4 at both ends of the bidirectional hydraulic cylinder 3 and to ensure the stability and smoothness of the pulling heads 4 during movement. The column 2 is located between the first guide rail 5 and the second guide rail 6. One end of the first guide rail 5 is fixedly connected to one of the columns 2, and the other end of the first guide rail 5 is fixedly connected to the first mold base 9. One end of the second guide rail 6 is fixedly connected to another column 2, and the other end of the second guide rail 6 is fixedly connected to the second mold base 11. The first guide rail 5 and the second guide rail 6 are arranged parallel to the base 1, and the pulling head 4 is slidably connected to the corresponding first guide rail 5 and the second guide rail 6.
[0027] In this embodiment, a cavity 7 is formed between the first guide rail 5 and the second guide rail 6 and the base 1 respectively; the first guide rail 5 and the second guide rail 6 are each provided with a feeding cavity 8 from top to bottom, and the feeding cavity 8 is connected to the cavity 7 so that the stainless steel tube after being drawn can be discharged from the feeding cavity 8 and the cavity 7.
[0028] In this embodiment, the cold drawing die includes a motor 12 and a rotary table 13. The output end of the motor 12 is fixedly mounted on the rotary table 13 so that the motor 12 can drive the rotary table 13 to rotate. The die is detachably fixedly mounted on the rotary table 13 so that it can rotate with the rotary table 13 so that different core dies on the die can be selected to cold draw the stainless steel tube. The motor 12 is fixedly mounted on the corresponding first die base 9 and second die base 11. The rotary table 13 is rotatably connected to the corresponding first die base 9 and second die base 11.
[0029] Motor 12 is a motor with a brake to ensure the stability of the rotary table 13 after motor 12 stops.
[0030] In this embodiment, the mold includes a mold base 14, a fixed platform 15, and a mold cavity 16. The fixed platform 15 is fixedly installed on the bottom of the mold base 14. The mold base 14 is fixedly connected to the rotating platform 13 by bolts through the fixed platform 15, so as to replace the mold. The circumferential surface of the mold base 14 has several mold cavities 16 of different specifications arranged in a circular array. Each mold cavity 16 has a detachable mold fixedly installed, so as to enable cold drawing of stainless steel tubes of various specifications and avoid the frequency of disassembly and replacement of molds.
[0031] In this embodiment, a mounting cavity 10 is provided above the first mold base 9 and the second mold base 11. The motor 12 is fixedly installed in the corresponding mounting cavity 10, and the rotary table 13 is rotatably installed in the corresponding mounting cavity 10. The top of the rotary table 13 protrudes from the mounting cavity 10 to limit the rotation of the rotary table 13 and ensure the stability of the rotary table 13 during operation.
[0032] In practical use, the corresponding mold cavity 16 is selected according to the specifications of the stainless steel pipe. The mold is rotated by driving the rotary table 13 through the motor 12, so that the required mold cavity 16 is coaxial with the bidirectional hydraulic cylinder 3, and then the rotation is stopped.
[0033] At this point, the pulling head 4 at one end of the bidirectional hydraulic cylinder 3 first pulls the stainless steel tube to one side of the second mold base 11 through the mold on the first mold base 9. After the pulling is completed, the pulling head 4 releases the stainless steel tube, so that the pulled stainless steel tube is discharged through the feeding chamber 8 and the cavity 7.
[0034] At this time, the pulling head 4 at the other end of the bidirectional hydraulic cylinder 3 will be on the side close to the second mold base 11. At this time, the pulling head 4 at the other end of the bidirectional hydraulic cylinder 3 can be used to pull the stainless steel tube to the side of the first mold base 9 through the mold on the second mold base 11. After the pulling is completed, the material is unloaded.
[0035] Finally, this process can be repeated alternately, thus avoiding empty vehicle reset and making it more efficient and energy-saving.
[0036] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.
Claims
1. An energy-saving cold-drawing machine for corrosion-resistant stainless steel pipes, characterized by: Including two-way hydraulic cylinder (3), two-way hydraulic cylinder (3) is fixedly installed on the support mechanism, two output ends of two-way hydraulic cylinder (3) are each fixedly installed with drawing head (4), drawing head (4) is slidably connected with support mechanism, one end of support mechanism is fixedly installed with first die holder (9), the other end of support mechanism is fixedly installed with second die holder (11); The first die holder (9) and the second die holder (11) are each fixedly installed with a cold-drawing die.
2. The energy-saving cold-drawing machine for corrosion-resistant stainless steel pipes according to claim 1, characterized in that: The support mechanism includes a base (1), a column (2), a first guide rail (5) and a second guide rail (6), the two-way hydraulic cylinder (3) is fixedly installed on the base (1) through a plurality of columns (2), the two sides above the base (1) are each fixedly installed with a first guide rail (5) and a second guide rail (6), the column (2) is between the first guide rail (5) and the second guide rail (6), one end of the first guide rail (5) is fixedly connected with one of the columns (2), the other end of the first guide rail (5) is fixedly connected with the first die holder (9), one end of the second guide rail (6) is fixedly connected with the other column (2), the other end of the second guide rail (6) is fixedly connected with the second die holder (11), the drawing head (4) is slidably connected between the corresponding first guide rail (5) and the second guide rail (6).
3. The energy-saving cold-drawing machine for corrosion-resistant stainless steel pipes according to claim 2, characterized in that: The first guide rail (5) and the second guide rail (6) form a cavity (7) between the base (1) respectively.
4. The energy-saving cold-drawing machine for corrosion-resistant stainless steel pipes according to claim 3, characterized in that: The first guide rail (5) and the second guide rail (6) are each provided with a blanking cavity (8) from top to bottom, and the blanking cavity (8) is in communication with the cavity (7).
5. The energy-saving cold-drawing machine for corrosion-resistant stainless steel pipes according to claim 1, characterized in that: The cold-drawing die includes a motor (12) and a rotating table (13), the output end of the motor (12) is fixedly installed with a rotating table (13), the rotating table (13) is detachably fixedly installed with a die, the motor (12) is fixedly installed on the corresponding first die holder (9) and second die holder (11), and the rotating table (13) is rotatably connected between the corresponding first die holder (9) and second die holder (11).
6. The energy-saving cold-drawing machine for corrosion-resistant stainless steel pipes according to claim 5, characterized in that: The die includes a die holder (14), a fixed table (15) and a die cavity (16), the bottom of the die holder (14) is fixedly installed with a fixed table (15), the die holder (14) is detachably fixedly connected between the fixed table (15) and the rotating table (13), the peripheral surface of the die holder (14) is provided with a plurality of die cavities (16) of different specifications in a circular array, and each of the die cavities (16) is detachably fixedly installed with a mold.
7. The energy-saving cold-drawing machine for corrosion-resistant stainless steel pipes according to claim 5, characterized in that: The top of the first die holder (9) and the second die holder (11) is each provided with a mounting cavity (10), the motor (12) is fixedly installed in the corresponding mounting cavity (10), the rotating table (13) is rotatably installed in the corresponding mounting cavity (10), and the top end of the rotating table (13) is exposed from the mounting cavity (10).