A type of horizontal movement hook for vertical wire rod mills
By designing a protective and locking mechanism for the transverse movement hook of the vertical wire rod mill, the problems of easy corrosion and the need for multiple manual operations of traditional hooks have been solved, thereby improving safety and stability, increasing roll changing efficiency and equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANGANG STEEL CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-06-30
AI Technical Summary
Traditional wire rod vertical rolling mill horizontal movement hooks require multiple manual operations, posing safety hazards and being susceptible to corrosion. Furthermore, they are prone to friction with the rolling mill during roll changes, leading to coating peeling.
A novel transverse hook has been designed, comprising a hook body, a protective mechanism, and a locking mechanism. The protective mechanism prevents the hook from falling off, while the locking mechanism ensures the stability and reliability of the hook, reduces wear and noise, and improves ease of operation and safety.
It effectively prevents hooks from falling off and wearing out, improves operational safety and equipment stability, simplifies the installation and disassembly process of hooks, and improves the roll changing efficiency of the rolling mill and the service life of the equipment.
Smart Images
Figure CN224423818U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel rolling equipment technology, specifically to a horizontal movement hook for a vertical wire rod mill. Background Technology
[0002] When changing rolls in a high-speed wire rod mill, the vertical mill needs to be moved outside the rolling line (i.e., to the roll changing position) for the roll changing operation. The process of moving the mill out and back is achieved by connecting a horizontal hydraulic cylinder to a horizontal hook on the mill, which pulls the mill to move it. Originally, this horizontal hook only served a connecting function. In actual use, a person needs to move the hook to open and close it and confirm its position. When the mill is in the rolling position, the mill also needs to be moved up and down for the grooving operation, requiring the hook to be in the open position. Each operation requires manual confirmation of the hook's position; otherwise, moving the mill will deform or damage the hook. Therefore, a new type of hook is needed that allows for convenient manual opening and closing and can also confirm its position using a position detection proximity switch, achieving the goals of simplifying operation, improving work efficiency, and ensuring equipment safety.
[0003] Currently, the traditional horizontal movement hooks of vertical wire rod mills are commonly semi-automatic or manual roll changers. During this process, the roll change hooks need to be operated and their positions adjusted manually multiple times. Because the roll change position involves human-machine interaction and poor space, there are significant safety hazards. The hooks are made of metal. However, when the traditional hooks are changing rolls, they are prone to friction with the mill, which can cause the coating on the hooks to peel off and make them susceptible to corrosion. Utility Model Content
[0004] The purpose of this utility model is to provide a transverse movement hook for a vertical wire rod mill, in order to solve the problem mentioned in the background art that the transverse movement hooks for vertical wire rod mills are commonly semi-automatic or manual roll changers. In this process, the roll change hooks need to be operated and the hook positions adjusted manually multiple times. Because the roll change position involves human-machine interaction and poor space, there are significant safety hazards. The hooks are metal hooks. However, traditional hooks are prone to friction with the mill during roll change, which causes the hook coating to peel off and the hook to be easily corroded.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a horizontal moving hook for a vertical wire rod mill, comprising a hook body, a hook seat at one end of the hook body, a baffle at the upper end of the hook seat, bolts threadedly connected to both sides of the upper end of the baffle, washers fitted on the outer wall of the bolts, a set of washers movably connected to one side of the hook seat, protective mechanisms detachably connected to both the upper and lower ends of the hook body, a cylinder welded to the upper end of the hook body, a locking mechanism rotatably connected to one side of the inner wall of the hook body, a copper sleeve inserted into one side of the inner wall of the hook body, a pin rotatably connected to the inner wall of the copper sleeve, and an oil cup opened on the inner wall of the pin;
[0006] The protective mechanism includes a first fixing hole, the outer wall of which is embedded and connected to the inner wall of the hook body. A protective plate is provided at the upper end of the first fixing hole, and a second fixing hole is provided on the inner wall of the protective plate. A screw is inserted into the inner wall of the second fixing hole.
[0007] Preferably, one side of the hook seat is detachably connected to one side of the hook body, and the upper end of the hook seat is movably connected to the lower end of the baffle.
[0008] Preferably, the upper end of the first fixing hole is detachably connected to the lower end of the protective plate, and the inner wall of the protective plate is through-connected to the outer wall of the second fixing hole.
[0009] Preferably, the inner diameters of the first fixing hole and the second fixing hole are the same and are compatible with the screw.
[0010] Preferably, the engaging mechanism includes a mounting groove, the outer wall of which is embedded and connected to one side of the inner wall of the hook body, a swing shaft is provided on one side of the inner wall of the mounting groove, a stop arm is provided on the outer wall of the swing shaft, and a torsion spring is sleeved on the outer wall of the swing shaft.
[0011] Preferably, one side of the inner wall of the mounting groove is rotatably connected to both ends of the swing shaft, and the outer wall of the swing shaft is rotatably connected to the inner wall of the stop arm.
[0012] Preferably, one end of the torsion spring abuts against the inner wall of the mounting groove, and the other end of the torsion spring abuts against the inner wall of the stop arm.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. The protective mechanism can effectively prevent the hook from falling off during operation due to misoperation or external force, reducing wear on the hook during operation and thus ensuring the safety of operators. At the same time, the protective mechanism simplifies the disassembly and installation process of the hook and improves work efficiency.
[0015] 2. The locking mechanism ensures the stability and reliability of the hook during use, thanks to the coordinated operation of the swing shaft, stop arm, and torsion spring. This reduces swaying and noise caused by equipment vibration, enabling multi-functionality, convenient operation without manual confirmation, accurate detection position, and safe and reliable equipment operation. It also improves the smoothness of the hydraulic transverse cylinder pushing the mill, prevents mill deviation, enhances the accuracy of the mill's installation position, and increases the mill's quick change efficiency. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a schematic diagram of the protective mechanism of this utility model;
[0018] Figure 3 This is a schematic diagram of the locking mechanism of this utility model;
[0019] Figure 4 This is a side-view exploded schematic diagram of the three-dimensional structure of this utility model.
[0020] In the diagram: 1. Hook body; 2. Hook seat; 3. Baffle; 4. Bolt; 5. Washer; 6. Washer assembly; 7. Protective mechanism; 8. Cylinder; 9. Engaging mechanism; 10. Copper sleeve; 11. Pin; 12. Oil cup; 71. Fixing hole one; 72. Protective plate; 73. Fixing hole two; 74. Screw; 91. Mounting groove; 92. Swing shaft; 93. Stop arm; 94. Torsion spring. Detailed Implementation
[0021] 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.
[0022] Please see Figure 1 and Figure 4This utility model provides a technical solution: a horizontal movement hook for a vertical wire rod mill, including a hook body 1, a hook seat 2 at one end of the hook body 1, a baffle 3 at the upper end of the hook seat 2, bolts 4 threadedly connected to both sides of the upper end of the baffle 3, washers 5 sleeved on the outer wall of the bolts 4, a washer assembly 6 movably connected to one side of the hook seat 2, protective mechanisms 7 detachably connected to both the upper and lower ends of the hook body 1, a cylinder 8 welded to the upper end of the hook body 1, and a locking mechanism 9 rotatably connected to one side of the inner wall of the hook body 1. A copper sleeve 10 is inserted into the inner wall of one side of the hook body 1. A pin 11 is rotatably connected to the inner wall of the copper sleeve 10. An oil cup 12 is opened on the inner wall of the pin 11. The protective mechanism 7 includes a fixing hole 71. The outer wall of the fixing hole 71 is embedded and connected to the inner wall of the hook body 1. A protective plate 72 is provided at the upper end of the fixing hole 71. A fixing hole 73 is provided on the inner wall of the protective plate 72. A screw 74 is inserted into the inner wall of the fixing hole 73. One side of the hook seat 2 is detachably connected to one side of the hook body 1. The upper end of the hook seat 2 is movably connected to the lower end of the baffle 3.
[0023] The movable connection between the hook seat 2 and the baffle 3 provides sufficient flexibility and stability during the lateral movement of the wire rod via the pin 11. The bolts 4 and washers 5 threaded on both sides of the upper end of the baffle 3 not only enhance the structural robustness but also effectively prevent the components from loosening due to vibration or impact during rolling. The movable connection of the gasket group 6 allows the cylinder 8 on the hook body 1 to be connected to the hydraulic lateral movement cylinder during roll changing. By operating the lateral movement cylinder, the rolling mill is moved to the roll changing position. The cylinder 8 on the hook body 1 is then disengaged from the hook body 1 to perform the roll changing operation, accommodating wire rods of different sizes. In addition, the protective mechanisms 7 at the upper and lower ends of the hook body 1 effectively prevent accidental injuries caused by the movement or vibration of the wire rod during operation, while also protecting the safety of the operators.
[0024] Please see Figure 2 In order to quickly protect the outer surface of the hook body 1, the upper end of the fixing hole 1 71 is detachably connected to the lower end of the protective plate 72, the inner wall of the protective plate 72 is connected through the outer wall of the fixing hole 2 73, and the inner diameters of the fixing hole 1 71 and the fixing hole 2 73 are the same and are compatible with the screw 74.
[0025] The welded cylindrical part 8 can be used as a handle to move the hook body 1. The upper end of the cylindrical part 8 on the hook body 1 can serve as a detection point for the proximity switch to confirm the position of the hook body 1. The rotating connection of the locking mechanism 9 allows the hook body 1 to be used more flexibly, improving work efficiency. The insertion and rotating connection of the copper sleeve 10 and the pin shaft 11 ensures good lubrication even under high temperature or high load conditions during long-term use, reducing wear and extending the service life of the equipment. The oil cup 12 facilitates daily lubrication maintenance and ensures smooth operation of the equipment. Both protective plates 72 are installed at the upper and lower ends of the hook body 1 with screws 74. The protective plates 72 improve the service life of the hook body 1, reduce wear during operation, improve operational safety, enhance the stability and durability of the equipment, and greatly improve work efficiency and product quality.
[0026] Please see Figure 3 In order to quickly fix the mill roll in the hook body 1, the locking mechanism 9 includes a mounting groove 91. The outer wall of the mounting groove 91 is embedded and connected to one side of the inner wall of the hook body 1. A swing shaft 92 is provided on one side of the inner wall of the mounting groove 91. A stop arm 93 is provided on the outer wall of the swing shaft 92. A torsion spring 94 is sleeved on the outer wall of the swing shaft 92. One side of the inner wall of the mounting groove 91 is rotatably connected to both ends of the swing shaft 92. The outer wall of the swing shaft 92 is rotatably connected to the inner wall of the stop arm 93. One end of the torsion spring 94 abuts against the inner side wall of the mounting groove 91, and the other end of the torsion spring 94 abuts against the inner side wall of the stop arm 93.
[0027] The two ends of the swing shaft 92 are connected to the two ends of the inner wall of the mounting groove 91 via bearings, ensuring that the swing shaft 92 can rotate flexibly. The stop arm 93 and the hook body 1 work together to form a slot for engaging with the outer surface of the mill roll, achieving rapid fixation. The torsion spring 94 provides continuous elastic force, ensuring that the stop arm 93 can fit tightly against the inner wall of the slot when not subjected to external force, thus maintaining the stability of the mill roll. In actual operation, the operator only needs to insert the mill roll into the slot of the stop arm 93, and then, through the elastic force of the torsion spring 94, the stop arm 93 will automatically engage with the mill roll, achieving rapid and stable fixation. When it is necessary to release the mill roll, the operator can manually push the stop arm 93 to disengage it from the mill roll, thereby... The release process ensures both ease of operation and safety and stability of the rolling mill rolls during operation. After changing the rolls, move the cylinder 8 on the hook to connect to the hydraulic transverse cylinder, operate the transverse cylinder to pull the rolling mill back to the rolling position. Once the rolling mill is back in the rolling position, move the cylinder 8 on the hook body 1 to the maximum position, so that the upper end of the cylinder 8 reaches the lower part of the inspection proximity switch. The hook position indicator light on the operation panel will remain on. If the hook is not opened or not fully opened, the indicator light will turn off. Afterwards, when the rolling mill reverses the groove, the indicator light will turn on, and the rolling mill can move up and down to align the groove and the rolling line. If the indicator light turns off, it means that the hook body 1 is in the closed state, and the electrical control interlock prevents the rolling mill from moving up and down.
[0028] Working Principle: Firstly, the movable connection between the hook seat 2 and the baffle 3 provides sufficient flexibility and stability during wire lateral movement via the pin 11. The bolts 4 and washers 5 threaded on both sides of the upper end of the baffle 3 not only enhance the structural robustness but also effectively prevent component loosening due to vibration or impact during rolling. The movable connection of the gasket group 6 allows the cylinder 8 on the hook body 1 to be connected to the hydraulic lateral movement cylinder during roll changing. Operating the lateral movement cylinder moves the mill to the roll changing position, and the cylinder 8 on the hook body 1 is disengaged to perform roll changing operations, accommodating wire of different sizes. Furthermore, the protective mechanisms 7 at both ends of the hook body 1 effectively prevent accidental injury caused by wire movement or vibration during operation, while also protecting the safety of the operators. The welded design of the cylinder 8 can serve as a handle. Moving the hook body 1 allows the upper end of the cylinder 8 on the hook body 1 to serve as a detection point for the proximity switch. The position of the hook body 1 is confirmed by detection. The rotating connection of the locking mechanism 9 allows the hook body 1 to be used more flexibly, improving work efficiency. The insertion and rotating connection of the copper sleeve 10 and the pin 11 ensures good lubrication even under high temperature or high load conditions during long-term use, reducing wear and extending the service life of the equipment. The oil cup 12 facilitates daily lubrication maintenance and ensures smooth operation of the equipment. Both protective plates 72 are installed at the upper and lower ends of the hook body 1 by screws 74. The protective plates 72 improve the service life of the hook body 1 and reduce wear during operation. This not only improves operational safety but also enhances the stability and durability of the equipment, greatly improving work efficiency and product quality.
[0029] Then, the two ends of the swing shaft 92 are connected to the two ends of the inner wall of the mounting groove 91 via bearings, ensuring that the swing shaft 92 can rotate flexibly. The stop arm 93 and the hook body 1 work together to form a slot, which is used to engage with the outer surface of the rolling mill roll for quick fixing. The torsion spring 94 provides continuous elasticity, ensuring that the stop arm 93 can fit tightly against the inner wall of the slot when not subjected to external force, thus maintaining the stability of the rolling mill roll. In actual operation, the operator only needs to insert the rolling mill roll into the slot of the stop arm 93, and then, through the elasticity of the torsion spring 94, the stop arm 93 will automatically engage the rolling mill roll, achieving quick and stable fixing. When it is necessary to release the rolling mill roll, the operator can manually push the stop arm 93 to disengage it from the rolling mill roll, thus completing the release process. This ensures both operational convenience and safety. The safety and stability of the rolling mill rolls during operation are as follows: After changing the rolls, move the cylinder 8 on the hook to connect to the hydraulic transverse cylinder, operate the transverse cylinder to pull the rolling mill back to the rolling position. Once the rolling mill is back in the rolling position, move the cylinder 8 on the hook body 1 to disengage from the hook body 1 to the maximum position, so that the upper end of the cylinder 8 reaches the lower part of the inspection proximity switch. The hook position indicator light on the operation panel will remain on. If the hook is not opened or not opened to the correct position, the indicator light will turn off. Afterwards, when the rolling mill reverses the groove, the indicator light will turn on, and the rolling mill can move up and down to align the groove and the rolling line. If the indicator light turns off, it means that the hook body 1 is in the closed state, and the electrical control interlock prevents the rolling mill from moving up and down. The above is the entire working process of the device. Any content not described in detail in this manual belongs to the prior art known to those skilled in the art.
[0030] 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 wire vertical rolling machine cross transfer hook comprising a hook body (1), characterized in that: A hook seat (2) is provided at one end of the hook body (1). A baffle (3) is provided at the upper end of the hook seat (2). Bolts (4) are threaded on both sides of the upper end of the baffle (3). Washers (5) are fitted on the outer wall of the bolts (4). A set of washers (6) is movably connected to one side of the hook seat (2). A protective mechanism (7) is detachably connected to both the upper and lower ends of the hook body (1). A cylinder (8) is welded to the upper end of the hook body (1). A locking mechanism (9) is rotatably connected to one side of the inner wall of the hook body (1). A copper sleeve (10) is inserted into one side of the inner wall of the hook body (1). A pin (11) is rotatably connected to the inner wall of the copper sleeve (10). An oil cup (12) is opened on the inner wall of the pin (11). The protective mechanism (7) includes a fixing hole one (71), the outer wall of the fixing hole one (71) is embedded and connected to the inner wall of the hook body (1), a protective plate (72) is provided at the upper end of the fixing hole one (71), a fixing hole two (73) is provided on the inner wall of the protective plate (72), and a screw (74) is inserted into the inner wall of the fixing hole two (73).
2. A cross transfer hook for a wire vertical rolling mill according to claim 1, characterized in that: One side of the hook seat (2) is detachably connected to one side of the hook body (1), and the upper end of the hook seat (2) is movably connected to the lower end of the baffle (3).
3. The transverse shift hook for a vertical wire rod mill according to claim 1, characterized in that: The upper end of the first fixing hole (71) is detachably connected to the lower end of the protective plate (72), and the inner wall of the protective plate (72) is connected through the outer wall of the second fixing hole (73).
4. The transverse shift hook for a vertical wire rod mill according to claim 3, characterized in that: The inner diameters of the first fixing hole (71) and the second fixing hole (73) are the same and are compatible with the screw (74).
5. The transverse shift hook for a vertical wire rod mill according to claim 1, characterized in that: The engaging mechanism (9) includes an mounting groove (91), the outer wall of which is embedded and connected to one side of the inner wall of the hook body (1), a swing shaft (92) is provided on one side of the inner wall of the mounting groove (91), a stop arm (93) is provided on the outer wall of the swing shaft (92), and a torsion spring (94) is sleeved on the outer wall of the swing shaft (92).
6. The transverse shift hook for a vertical wire rod mill according to claim 5, characterized in that: The inner wall of the mounting groove (91) is rotatably connected to both ends of the swing shaft (92), and the outer wall of the swing shaft (92) is rotatably connected to the inner wall of the stop arm (93).
7. A transverse shift hook for a vertical wire rod mill according to claim 5, characterized in that: One end of the torsion spring (94) abuts against the inner wall of the mounting groove (91), and the other end of the torsion spring (94) abuts against the inner wall of the stop arm (93).