A wear-resistant pipe structure of a high-speed wire bar machine

Abstract

The utility model discloses a kind of steel high-speed wire-feeding machine wear-resistant pipe structures, including wire-feeding machine fixed seat, the wire-feeding tube of horn shape is connected with one side of wire-feeding machine fixed seat, dynamic control structure is provided on the wire-feeding tube, the high hardness, high bonding strength, low friction coefficient carbide coating of wire-feeding tube inner wall significantly improves wear resistance, prolongs service life, mounting seat is integrally formed with wire-feeding tube and is connected with fixed seat by quick-release bolt, realize wear-resistant pipe assembly overall quick replacement, greatly simplify maintenance, guide control roller real-time perception steel state, abnormal impact force is transmitted to pressure detector by control rod, through monitoring pressure change, timely early warning steel risk and parallel operation control system, effectively guarantee production continuity and security.

Description

Technical Field

[0001] This utility model relates to the field of wire spinning machine technology, specifically to a wear-resistant tube structure for a high-speed wire spinning machine for reinforcing bars. Background Technology

[0002] In modern large-diameter coiled steel bar rolling production lines, high-speed coil forming machines are key equipment for achieving coiling of steel bars. Their core structure typically consists of a coil forming tube, pinch rollers, a guiding device, and a control system. The coil forming tube, as the core component, guides the high-speed moving steel bars into regular coils; the pinch rollers control the steel bar conveying speed by applying pressure; the guiding device maintains the stability of the steel bar's trajectory; and the control system adjusts the equipment's operating status according to process parameters, collectively ensuring coil forming accuracy and production line efficiency.

[0003] However, existing equipment has significant shortcomings when dealing with high-speed rolling of large-diameter steel bars: the traditional Φ22mm wire drawing tube has insufficient wear resistance of the inner wall, and the friction and wear of the tube wall intensifies when the steel bar outlet flow velocity exceeds 18m / s. The service life of a single set is only 0.6 to 0.8 tons, and frequent replacement leads to high maintenance costs, which limits the improvement of production efficiency and cost control of large-diameter coiled steel bars. During the production of large-diameter coiled steel bars, the change of traction force on the traction side can also easily lead to excessive flow velocity on one side of the steel bar, causing the steel bar to jump and cause abnormal impact on the tube wall, which aggravates the wear of the tube wall. In view of this, in-depth research was conducted on the above problems, which led to this case. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a wear-resistant tube structure for a high-speed rebar wire drawing machine, thus solving the existing technical problems.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a wear-resistant tube structure for a high-speed rebar wire drawing machine, including a wire drawing machine fixing seat, a flared wire drawing tube connected to one side of the wire drawing machine fixing seat, and a dynamic control structure provided on the wire drawing tube;

[0006] The dynamic control structure includes a mounting groove, a mounting groove is provided on the spinning machine fixed base, a mounting seat is mounted on the mounting groove, the mounting seat is integrally formed with the spinning tube, the mounting seat and the mounting groove are connected by a quick-release assembly, the mounting seat is provided with a spinning groove, the spinning tube is provided with a spinning hole, a fixing plate is mounted on one side of the spinning hole, a support tube is provided on one side of the fixing plate, and a control rod is mounted inside the support tube.

[0007] A control spring is provided between the control rod and the support tube, and a pressure detector is provided between the control spring and the control rod. A guide control roller is connected to the end of the control rod, and the guide control roller corresponds to the spinneret hole.

[0008] The inner wall of the spinning tube is coated with a reinforced protective coating.

[0009] Preferably, the reinforced protective coating is a carbide coating, the surface microhardness of the reinforced protective coating is 92-95 HRC, the bonding strength between the reinforced protective coating and the spinneret is ≥420 MPa, and the friction coefficient of the reinforced protective coating is ≤0.12.

[0010] Preferably, the mounting base is a cylindrical plate and is integrally formed and coaxially arranged with the spinning tube.

[0011] Preferably, the control lever is matched with the support tube, and the end of the control lever is provided with a piston block with a cylindrical structure.

[0012] Preferably, the quick-release assembly includes several fixing bolts, and several fixing bolts are arranged in a ring on one side of the mounting base. Several fixing holes are arranged in a ring on the spinning machine fixing base, and several fixing bolts pass through several fixing holes and are fixed in the opposite direction by several nuts.

[0013] Beneficial effects

[0014] This utility model provides a wear-resistant tube structure for a high-speed rebar wire drawing machine. It offers the following advantages: The wear-resistant tube structure and dynamic clamping system of this large-size coiled rebar high-speed wire drawing machine significantly improve wear resistance and extend service life due to the high hardness, high bonding strength, and low friction coefficient carbide coating on the inner wall of the wire drawing tube. The mounting base and wire drawing tube are integrally formed and connected to the fixing base via quick-release bolts, enabling rapid replacement of the entire wear-resistant tube assembly and greatly simplifying maintenance. The guide control rollers sense the rebar status in real time, and abnormal impact forces are transmitted to the pressure detector via the control rod. By monitoring pressure changes, it provides timely warnings of steel accumulation risks and links with the control system, effectively ensuring production continuity and safety. Attached Figure Description

[0015] Figure 1 This is a first three-dimensional structural diagram of the wear-resistant tube structure of a high-speed rebar wire drawing machine according to the present invention.

[0016] Figure 2 This is a second three-dimensional structural diagram of the wear-resistant tube structure of the high-speed rebar wire drawing machine described in this utility model.

[0017] Figure 3 This is a cross-sectional structural diagram of the wear-resistant tube structure of a high-speed rebar wire drawing machine according to the present invention.

[0018] In the diagram: 1. Spinning machine base; 2. Spinning tube; 3. Dynamic control structure; 4. Quick-release assembly; 31. Mounting slot; 32. Mounting base; 33. Spinning hole; 34. Support tube; 35. Control rod; 36. Control spring; 37. Pressure detector; 38. Guide control roller; 39. Fixing plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-3 This utility model provides an implementation scheme: When dealing with high-speed rolling of large-diameter steel bars, the existing equipment suffers from insufficient wear resistance of the inner wall of the wire drawing tube. Under the condition of high steel bar outlet flow velocity, the friction and wear of the tube wall intensifies, and frequent replacement leads to high maintenance costs, which limits the improvement of production efficiency and cost control capabilities of large-diameter coiled steel bars. During the production of large-diameter coiled steel bars, the change in traction force on the traction side can also easily lead to excessive flow velocity on one side of the steel bar, causing the steel bar to jump and cause abnormal impact on the tube wall, which intensifies the wear on the tube wall.

[0021] To address the aforementioned issues, this application discloses a wear-resistant tube structure for a high-speed rebar wire drawing machine, comprising a wire drawing machine base 1, which serves as the installation foundation for the entire structure. One side of the base is connected to a flared wire drawing tube 2 via a flange, used to guide and shape the high-speed moving rebar. A dynamic control structure 3 is provided on the wire drawing tube 2, which serves as a core functional module for sensing the rebar status and assisting in control.

[0022] According to the instruction manual Figure 1-3 It can be seen that the above-mentioned dynamic control structure 3 includes an installation groove 31, which is set on the wire spinning machine fixed seat 1 for the passage of reinforcing bars. An installation seat 32 is assembled on the installation groove 31. The installation seat 32 serves as the installation base of the wear-resistant tube assembly and is integrally formed with the wire spinning tube 2 to ensure structural strength and coaxiality and reduce vibration.

[0023] Furthermore, the quick-release assembly 4 is used to enable the quick disassembly and installation of the wear-resistant tube assembly to facilitate the replacement of worn parts and the replacement and maintenance of the wire-spitting tube 2. The mounting base 32 is provided with a wire-spitting groove, which is a channel to guide the reinforcing bar into the wire-spitting tube 2. The wire-spitting tube 2 is provided with a wire-spitting hole 33, which serves as the final outlet for the reinforcing bar.

[0024] A fixing plate 39 is mounted on one side of the wire-ejecting hole 33. The fixing plate 39 is used to support the installation of the support tube 34 and internal components. The support tube 34 is a tubular structure that provides precise guidance for the control rod 35. The control rod 35 is installed inside the support tube 34. The control rod 35 is the core moving component that transmits the impact force of the rebar. A control spring 36 is set between the control rod 35 and the support tube 34. The control spring 36 provides the return spring force for the control rod 35 and absorbs part of the impact. A pressure detector 37 is set between the control spring 36 and the control rod 35. The pressure detector 37 is used to monitor the impact pressure transmitted from the control rod 35 in real time and reflect the strength of the rebar's collision with the tube wall. A guide control roller 38 is connected to the end of the control rod 35. The guide control roller 38 directly contacts the rebar passing through the wire-ejecting hole 33 to guide the rebar and sense its state. The guide control roller 38 is set corresponding to the wire-ejecting hole 33 to ensure that the roller can accurately sense the state of the rebar at the outlet of the wire-ejecting hole 33.

[0025] Furthermore, a reinforced protective coating is applied to the inner wall of the spinning tube 2, which significantly improves the wear resistance of the spinning tube 2 and extends its service life.

[0026] As a preferred option, the protective coating is further reinforced by a carbide coating with a surface microhardness of 92-95 HRC. This extremely high hardness provides excellent wear resistance. The bonding strength between the reinforced protective coating and the wire-spinning tube 2 is ≥420 MPa, ensuring that the coating does not fall off under high-speed steel bar friction and impact. The friction coefficient of the reinforced protective coating is ≤0.12, reducing the frictional resistance between the steel bar and the tube wall, and reducing energy consumption and the risk of steel sticking.

[0027] As a preferred option, the mounting base 32 is a cylindrical plate and is integrally formed and coaxially arranged with the wire-spinning tube 2. This design ensures that the mounting base 32 and the wire-spinning tube 2 are precisely aligned, which facilitates positioning in the mounting groove 31 and improves the overall rigidity.

[0028] As a preferred option, the control lever 35 is further matched with the support tube 34 to ensure that the control lever 35 can only slide smoothly along the axial direction within the support tube 34. The end of the control lever 35 is provided with a piston block with a cylindrical structure. This piston block is used to increase the contact area with the control spring 36 to make the pressure transmission more uniform and improve the stability of sliding within the support tube 34.

[0029] As a preferred option, the quick-release assembly 4 further includes several fixing bolts. Several fixing bolts are arranged in a ring on one side of the mounting base 32 to achieve uniform distribution of locking force. Several fixing holes are arranged in a ring on the spinning machine mounting base 1, and their positions correspond to the fixing bolts. Several fixing bolts pass through several fixing holes. When tightened, the mounting base 32 together with the integrally formed spinning tube 2 on it is firmly pressed onto the spinning machine mounting base 1. When disassembling, simply loosen these bolts to quickly remove the entire wear-resistant tube assembly for replacement.

[0030] Furthermore, in order to adapt to the dynamic clamping force of the wire drawing machine, a hydraulically controlled roller is installed on the feeding side of the wire drawing machine. The pressure change of the guide control roller 38 on the pressure detector 37 is received by the servo controller. Combined with the diameter signal and speed signal of the rolling mill, the hydraulic controller is dynamically adjusted to control the clamping roller pressure P, which satisfies the relationship P=0.8×D+0.5×v; where D is the diameter of the steel bar (mm) and v is the wire drawing speed (m / s).

[0031] In summary, the wear-resistant tube structure and dynamic clamping system of this high-speed wire drawing machine for large-diameter coiled steel bars significantly improve wear resistance and extend service life due to the high hardness, high bonding strength, and low friction coefficient carbide coating on the inner wall of the wire drawing tube 2. The mounting base 32 is integrally formed with the wire drawing tube 2 and connected to the fixed base through quick-release bolts, enabling rapid replacement of the entire wear-resistant tube assembly and greatly simplifying maintenance. The guide control roller 38 senses the steel bar status in real time, and abnormal impact forces are transmitted to the pressure detector 37 via the control rod 35. By monitoring pressure changes, the machine promptly warns of steel pile-up risks and links with the control system, effectively ensuring production continuity and safety.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant tube structure for a high-speed rebar wire drawing machine, comprising a wire drawing machine fixing base (1), wherein a trumpet-shaped wire drawing tube (2) is connected to one side of the wire drawing machine fixing base (1), characterized in that, The spinning tube (2) is equipped with a dynamic control structure (3); The dynamic control structure (3) includes a mounting groove (31). The mounting groove (31) is provided on the spinning machine fixed base (1). The mounting base (32) is assembled on the mounting groove (31). The mounting base (32) is integrally formed with the spinning tube (2). The mounting base (32) and the mounting groove (31) are connected by a quick-release assembly (4). The spinning groove is provided on the mounting base (32). The spinning hole (33) is provided on the spinning tube. A fixing plate (39) is assembled on one side of the spinning hole (33). A support rod (34) is provided on one side of the fixing plate (39). A control rod (35) is assembled inside the support rod (34). A control spring (36) is provided between the control rod (35) and the support tube (34), and a pressure detector (37) is provided between the control spring (36) and the control rod (35). A guide control roller (38) is connected to the end of the control rod (35), and the guide control roller (38) corresponds to the spinning hole (33). The inner wall of the spinneret (2) is coated with a reinforced protective coating.

2. A wear resistant tube structure for a high speed reinforcement wire laying head as claimed in claim 1, wherein The reinforced protective coating is a carbide coating with a surface microhardness of 92-95 HRC, a bonding strength between the reinforced protective coating and the spinneret (2) of ≥420 MPa, and a friction coefficient of ≤0.

12.

3. A wear tube structure for a high speed reinforcement wire laying head as claimed in claim 2, wherein The mounting base (32) is a cylindrical plate and is integrally formed and coaxially arranged with the spinning tube (2).

4. A wear resistant tube structure for a high speed reinforcement wire laying head as claimed in claim 3, wherein The control lever (35) is matched with the support tube (34), and the end of the control lever (35) is provided with a piston block with a cylindrical structure.

5. The wear-resistant tube structure of a high-speed rebar wire drawing machine according to claim 4, characterized in that, The quick-release assembly (4) includes several fixing bolts. Several fixing bolts are arranged in a ring on one side of the mounting base (32). Several fixing holes are arranged in a ring on the spinning machine fixing base (1). Several fixing bolts pass through several fixing holes and are fixed in the opposite direction by several nuts.

Images