A fast roll-changing galvanized strip tension leveller
Patent Information
- Application Number
- CN202522218689.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-21
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-10-21
AI Technical Summary
然而，现有张力矫直机的张力辊更换结构较为复杂，通常需要拆卸多个固定螺栓、分离传动部件，且缺乏精准的定位辅助结构，导致换辊过程耗时较长，对此，针对该技术问题，本申请提出一种快速换辊的镀锌带钢张力矫直机
1、本实用新型中，借助螺杆一、定位杆、卡合套和螺杆二构成的快速松紧结构，搭配榫头的定位设计，能大幅缩短单根张力辊的更换时间，显著减少设备停机时长，有效提升生产线的连续运行能力。
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Figure CN224823982U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tension straightening technology, and in particular to a galvanized strip tension straightening machine with quick roller changing. Background Technology
[0002] Galvanized steel strip, as a type of steel with a galvanized coating, is widely used in many fields such as construction, automobile manufacturing, home appliance production, and machinery processing due to its excellent corrosion resistance, formability, and paintability. In the production process of galvanized steel strip, a tension straightener is an essential piece of equipment to eliminate strip shape defects such as waviness and warping generated during rolling and galvanizing processes, and to ensure the straightness and surface quality of the strip. It uses the synergistic effect of tension and straightening rollers to induce plastic deformation in the strip, thereby achieving the purpose of straightening the strip shape.
[0003] Currently, in the use of tension straighteners for galvanized strip steel, the tension roller, as the core component that directly contacts the strip steel and provides tension, is prone to wear and scratches due to long-term exposure to friction and pressure. Regular replacement is necessary to ensure straightening effect and strip steel surface quality. However, the existing tension roller replacement structure of tension straighteners is relatively complex, typically requiring the disassembly of multiple fixing bolts and separation of transmission components. Furthermore, the lack of precise positioning auxiliary structures results in a lengthy roller replacement process. To address this technical problem, this application proposes a galvanized strip steel tension straightener with rapid roller replacement. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a galvanized strip tension straightening machine with rapid roller changing. Utilizing a rapid tightening and loosening structure composed of screw one, positioning rod, locking sleeve, and screw two, combined with a tenon positioning design, it can significantly shorten the replacement time of a single tension roller, substantially reduce equipment downtime, and effectively improve the continuous operation capability of the production line.
[0005] To achieve the above objectives, the present invention provides the following technical solution: A tension straightening machine for galvanized strip steel with quick roller changing includes a straightening box. A support frame is fixedly connected to the left end of the straightening box. Multiple straightening rollers are rotatably connected to the inner wall of the straightening box. The front end of the left straightening roller is connected to a rotating rod 1 via a synchronous belt 1. The front end of the rotating rod 1 is connected to a rotating rod 2 via a synchronous belt 2. The outer walls of both rotating rod 1 and rotating rod 2 are rotatably connected to the front inner wall of the support frame. Tension rollers are connected to the outer walls of both rotating rod 1 and rotating rod 2 via a limiting component 1. The rear sides of the outer walls of both tension rollers are rotatably connected to the rear inner wall of the support frame. The rear side of the top of the support frame is rotatably connected to a limiting component 2.
[0006] Furthermore, the limiting component one includes limiting sleeves located on the outer walls of rotating rod one and rotating rod two, the inner walls of the two limiting sleeves are slidably connected to the outer walls of rotating rod one and rotating rod two respectively, the top ends of the two limiting sleeves are threadedly connected to screw rod one, the bottom ends of the two screw rods are fixedly connected to positioning rods, and the outer walls of the two positioning rods are set in the groove at the top of the tension roller.
[0007] Furthermore, each of the two tension rollers has a tenon fixedly connected to its front end, and the outer walls of the two tenons are respectively set in grooves at the rear ends of the first and second rotating rods.
[0008] Furthermore, the limiting component two includes two locking sleeves located on the rear side of the top of the support frame. The right side of the top of each of the two locking sleeves is threaded with a screw rod two, and the outer walls of the two screw rod two are threaded to the rear side of the top of the support frame.
[0009] Furthermore, washers are provided on the outer walls of both screws one and both screws two, with the two front washers located at the top of the limiting sleeve and the two rear washers located at the top of the engaging sleeve.
[0010] Furthermore, a motor is mounted on the front end of the straightening box via a fixing frame, and the motor drive end is fixedly connected to the front end of the left straightening roller.
[0011] Furthermore, each of the straightening rollers has a gear fixedly connected to its front end, and the gears mesh with each other from left to right.
[0012] Furthermore, both of the inner walls of the limiting sleeves are fixed with sliding tenons. The inner wall of the left limiting sleeve is slidably connected to the outer wall of the rotating rod 2 via the sliding tenon, and the inner wall of the right limiting sleeve is also slidably connected to the outer wall of the rotating rod 1 via the sliding tenon.
[0013] This utility model has the following beneficial effects: 1. In this utility model, the quick tightening and loosening structure composed of screw one, positioning rod, locking sleeve and screw two, combined with the positioning design of tenon, can greatly shorten the replacement time of a single tension roller, significantly reduce equipment downtime, and effectively improve the continuous operation capability of the production line.
[0014] 2. In this utility model, the precise fit between the positioning rod and the tension roller groove, as well as the rigid connection between the tenon and the rotating rod groove, ensures that the concentricity of the tension roller remains in an ideal state after roller replacement, avoiding scratches on the strip surface or a decrease in straightening accuracy due to installation deviations. At the same time, the screw-driven locking method eliminates the need for heavy tools, reducing the labor intensity of operators and lowering the risk of mechanical damage. Attached Figure Description
[0015] Figure 1 This is a perspective view of a galvanized strip tension straightener with rapid roller changing, as proposed in this utility model. Figure 2 This is a schematic diagram of the gear structure of a galvanized strip tension straightener with rapid roller changing, as proposed in this utility model. Figure 3 This is a schematic diagram of the clamping sleeve structure of a galvanized strip tension straightener with quick roller changing proposed in this utility model; Figure 4 This is a schematic diagram of the tenon structure of a galvanized strip tension straightener with a quick roller change according to the present invention. Figure 5 This is a schematic diagram of the straightening roller structure of a galvanized strip tension straightener with a quick roller change capability proposed in this utility model.
[0016] Legend: 1. Straightening box; 2. Straightening roller; 3. Gear; 4. Synchronous belt one; 5. Rotary rod one; 6. Synchronous belt two; 7. Rotary rod two; 8. Limiting sleeve; 9. Screw one; 10. Positioning rod; 11. Washer; 12. Tenon; 13. Tension roller; 14. Engaging sleeve; 15. Screw two; 16. Motor; 17. Support frame. Detailed Implementation
[0017] 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.
[0018] Reference Figure 1 , Figure 2 and Figure 5 The present invention provides an embodiment of a galvanized strip tension straightening machine with quick roller changing, comprising a straightening box 1, a support frame 17 fixedly connected to the left end of the straightening box 1, a plurality of straightening rollers 2 rotatably connected to the inner wall of the straightening box 1, a rotating rod 5 connected to the front end of the left straightening roller 2 via a timing belt 4, a rotating rod 7 connected to the front end of the rotating rod 5 via a timing belt 6, the outer walls of the rotating rod 5 and the rotating rod 7 being rotatably connected to the front inner wall of the support frame 17, tension rollers 13 being connected to the outer walls of the rotating rods 5 and the rotating rod 7 via a limiting component 1, the rear sides of the outer walls of the two tension rollers 13 being rotatably connected to the rear inner wall of the support frame 17, and a limiting component 2 being rotatably connected to the rear side of the top end of the support frame 17; Specifically, the galvanized steel strip to be straightened needs to be threaded along a specific path: first, it passes over the left tension roller 13, then around to the right tension roller 13, forming an "S" shaped wrap angle to ensure that the strip is fully taut under tension; then, the strip passes through multiple straightening rollers 2 in the straightening box 1, with the upper two and lower three straightening rollers staggered; finally, one end of the strip is fixed to the take-up roller, and the tension roller 13 provides the tension required for straightening through friction with the strip; the straightening box 1 provides installation space for the straightening rollers 2 to ensure the stability of the straightening process; the take-up roller works in conjunction with the tension roller to form a continuous tension field.
[0019] Reference Figures 2-4 The limiting sleeves 8 are located on the outer walls of rotating rod 5 and rotating rod 7. The inner walls of the two limiting sleeves 8 are slidably connected to the outer walls of rotating rod 5 and rotating rod 7, respectively. The top of each limiting sleeve 8 is threaded with a screw 9. The bottom of each screw 9 is fixedly connected with a positioning rod 10. The outer walls of each positioning rod 10 are set in the groove at the top of the tension roller 13. The front end of each tension roller 13 is fixedly connected with a tenon 12. The outer walls of each tenon 12 are set in the groove at the rear end of rotating rod 5 and rotating rod 7, respectively. The two engaging sleeves 14 located on the rear side of the top of the support frame 17 are threaded with screws 15 on the right side of their top ends. The outer walls of each screw 15 are threaded with screws. The screw is connected to the rear side of the top of the support frame 17. Washers 11 are provided on the outer walls of the two screws 19 and the two screws 25. The two front washers 11 are provided on the top of the limiting sleeve 8, and the two rear washers 11 are provided on the top of the engaging sleeve 14. The front end of the straightening box 1 is equipped with a motor 16 through a fixing frame. The drive end of the motor 16 is fixedly connected to the front end of the left straightening roller 2. The front ends of multiple straightening rollers 2 are fixedly connected with gears 3. The multiple gears 3 mesh with each other from left to right. The inner walls of the two limiting sleeves 8 are fixed with sliding tenons. The inner wall of the left limiting sleeve 8 is slidably connected to the outer wall of the rotating rod 2 7 through the sliding tenon. The inner wall of the right limiting sleeve 8 is also slidably connected to the outer wall of the rotating rod 1 5 through the sliding tenon. Specifically, after starting motor 16, its drive end directly drives the left straightening roller 2 to rotate. Since the front ends of multiple straightening rollers 2 are all fixedly connected to gears 3 and mesh with each other, they can synchronously drive the upper two and lower three straightening rollers 2 to rotate in opposite directions, forming a continuous bending-straightening channel. At the same time, the left straightening roller 2 drives the rotating rod 5 to rotate through synchronous belt 4, and the rotating rod 5 then drives the rotating rod 7 through synchronous belt 6, ultimately causing the two tension rollers 13 to rotate synchronously with the rotating rod, realizing continuous conveying and straightening of the strip steel. Motor 16 provides the power source for the equipment; gears 3 ensure the coordinated rotation of the straightening rollers 2, guaranteeing straightening accuracy; synchronous belts 4 and 6 realize the stable transmission of power from the straightening roller to the rotating rod and then to the tension roller; rotating rod 5 and rotating rod 7 serve as the transmission intermediaries for the tension roller, connecting the power system and the actuator. When tension roller 13 needs to be replaced due to wear, rotate screw 15 to push it upwards, releasing the locking sleeve 14. Flip the locking sleeve 14 to release the limiting position on the rear end of tension roller 13. The locking sleeve 14 is connected to the support frame 17 via screw 15, forming a radial constraint on the rear end of the tension roller under normal conditions. Rotate the disc plate at the top of screw 9 to drive the positioning rod 10 out of the groove at the top of tension roller 13, releasing the axial positioning at the front end. The inner wall of the limiting sleeve 8 is slidably connected to rotating rod 5 and rotating rod 7 via a sliding tenon, so it can slide along the axial direction of the rotating rod at this time. Sliding away from the tension roller 13, the tenon 12 at the front end of the tension roller 13 was originally inserted into the groove at the rear end of the rotating rod 5 and the rotating rod 7. After the limit is released, the tension roller 13 can be directly pulled out from the rear inner wall of the support frame 17 to complete the disassembly. The limit sleeve 8, screw 9, and positioning rod 10 realize the rapid positioning and release of the front end of the tension roller; the locking sleeve 14 and screw 15 constrain the rear end of the tension roller to ensure rotational stability; the tenon 12 transmits torque while facilitating rapid separation; the support frame 17 provides installation support for the tension roller and the rotating rod. When installing the new tension roller 13, place the rear end of the tension roller 13 into the corresponding groove on the inner wall of the rear side of the support frame 17, align the tenon 12 at the front end with the groove at the rear end of the rotating rod 5 or the rotating rod 7 and push it in to complete the initial positioning. Slide the limiting sleeve 8 to the front end of the tension roller 13, rotate the screw 9 to make the positioning rod 10 engage with the groove at the top of the tension roller, and use the washer 11 to enhance the locking stability of the screw 9 and prevent loosening. Flip the locking sleeve 14 to wrap around the rear end of the tension roller 13, rotate the screw 15 to make it pass through the locking sleeve and screw it into the support frame 17, and use the washer 11 to ensure that the locking sleeve 14 is tightly fixed to complete the overall installation. The washer 11 buffers the pressure when the screw 9 and the screw 15 are locked to avoid wear on the parts. The sliding tenon design makes the limiting sleeve 8 slide more smoothly along the axis of the rotating rod and shortens the alignment time.
[0020] Working principle: The strip steel to be straightened is first passed over the left tension roller 13 and then under the right tension roller 13. The strip steel is then passed between multiple straightening rollers 2, and one end of the strip steel is fixed to the take-up roller. Then, the motor 16 is started, and under the action of the gear 3, it drives the two upper straightening rollers 2 and the three lower straightening rollers 2 to rotate simultaneously. Then, under the action of the synchronous belt 4 and synchronous belt 6, the two tension rollers 13 rotate. The strip steel is straightened by the two tension rollers 13 and the multiple straightening rollers 2. When it is necessary to disassemble the tension rollers 13, first rotate the screw 15 to release the limit on the locking sleeve 14, then rotate the locking sleeve 14 to release the limit on the tension rollers 13. Finally, rotate the disc plate above the screw 9. The positioning rod 10 is removed from the tension roller 13. Then, the sliding limiting sleeve 8 removes the restriction between the rotating rod 2 7 and the tension roller 13 or the rotating rod 1 5 and the tension roller 13, allowing the tension roller 13 to be disassembled. When the tension roller 13 needs to be installed, place the tension roller 13 in the corresponding groove of the rear support frame 17, then insert the tenon 12 on the tension roller 13 into the corresponding groove of the rotating rod 1 5 or the rotating rod 2 7. Then, slide the limiting sleeve 8 to limit the tension roller 13. Rotate the screw 1 9 in the opposite direction to insert the positioning rod 10 into the groove of the tension roller 13 to fix the tension roller 13. Rotate the locking sleeve 14 to limit the tension roller 13, and rotate the screw 2 15 in the opposite direction to fix the locking sleeve 14.
[0021] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A tension straightening machine for galvanized strip steel with quick roll changing, characterized in that: The device includes a straightening box (1), a support frame (17) is fixedly connected to the left end of the straightening box (1), and multiple straightening rollers (2) are rotatably connected to the inner wall of the straightening box (1). The front end of the straightening roller (2) on the left side is connected to a rotating rod (5) via a timing belt (4). The front end of the rotating rod (5) is connected to a rotating rod (7) via a timing belt (6). The outer walls of the rotating rod (5) and the rotating rod (7) are rotatably connected to the front inner wall of the support frame (17). The outer walls of the rotating rod (5) and the rotating rod (7) are connected to tension rollers (13) via a limiting component (1). The rear sides of the outer walls of the two tension rollers (13) are rotatably connected to the rear inner wall of the support frame (17). The rear side of the top end of the support frame (17) is rotatably connected to a limiting component (2).
2. The galvanized strip tension straightener with quick roll changing according to claim 1, characterized in that: The limiting component includes a limiting sleeve (8) located on the outer wall of the first rotating rod (5) and the second rotating rod (7). The inner walls of the two limiting sleeves (8) are slidably connected to the outer walls of the first rotating rod (5) and the second rotating rod (7), respectively. The top ends of the two limiting sleeves (8) are threadedly connected to the first screw (9), and the bottom ends of the two first screws (9) are fixedly connected to the positioning rods (10). The outer walls of the two positioning rods (10) are set in the groove at the top of the tension roller (13).
3. A galvanized strip tension straightener with quick roll changing according to claim 2, characterized in that: Both tension rollers (13) are fixedly connected to tenons (12) at their front ends. The outer walls of the two tenons (12) are respectively set in grooves at the rear ends of the first rotating rod (5) and the second rotating rod (7).
4. A galvanized strip tension straightener with quick roll changing according to claim 3, characterized in that: The limiting component two includes two locking sleeves (14) located on the rear side of the top of the support frame (17). The right side of the top of each of the two locking sleeves (14) is threaded with a screw two (15). The outer walls of the two screw two (15) are threaded to the rear side of the top of the support frame (17).
5. A galvanized strip tension straightener with quick roll changing according to claim 4, characterized in that: Washers (11) are provided on the outer walls of the two screws (9) and the two screws (15). The two front washers (11) are located at the top of the limiting sleeve (8), and the two rear washers (11) are located at the top of the locking sleeve (14).
6. A galvanized strip tension straightener with quick roll changing according to claim 1, characterized in that: The front end of the straightening box (1) is equipped with a motor (16) via a fixed frame, and the drive end of the motor (16) is fixedly connected to the front end of the left straightening roller (2).
7. A galvanized strip tension straightener with quick roll changing according to claim 1, characterized in that: Each of the straightening rollers (2) has a gear (3) fixedly connected to its front end, and the gears (3) mesh with each other from left to right.
8. A galvanized strip tension straightener with quick roll changing according to claim 2, characterized in that: Both of the limiting sleeves (8) have sliding tenons fixed to their inner walls. The inner wall of the left limiting sleeve (8) is slidably connected to the outer wall of the rotating rod two (7) through the sliding tenon. Similarly, the inner wall of the right limiting sleeve (8) is slidably connected to the outer wall of the rotating rod one (5) through the sliding tenon.