Synchronous guide belt tension closed-loop control mechanism
The synchronous guiding belt tension closed-loop control mechanism with three-roll asymmetric layout and dual-signal detection solves the problems of slow response and low tension detection accuracy in the existing technology, achieving high-precision guiding and tension stability, adapting to different belt materials, and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-24
- Publication Date
- 2026-04-10
AI Technical Summary
Existing synchronous guiding mechanisms have slow response and low tension detection accuracy, making them unsuitable for strips of different thicknesses or hardnesses, resulting in poor strip correction performance and affecting production quality.
The guide roller assembly adopts a three-roller asymmetric layout, combined with a dual-signal detection and electric adjustment structure, including strain gauges and non-contact eddy current sensors. The lifting frame is adjusted by a servo motor to achieve high-precision guidance and tension stability.
It improves the speed of web correction response and tension stability, adapts to strips of different materials and thicknesses, reduces wear, and ensures accuracy and reliability in long-term operation.
Smart Images
Figure CN224105200U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of strip conveying, and particularly relates to a synchronous guide correct strip tension closed loop control mechanism. BACKGROUND
[0002] In the strip continuous production or processing process (such as rolling, coating, slitting etc.), the strip is prone to deviation or uneven tension, resulting in product quality decline or even strip breakage. The function of the synchronous guide correct strip is to correct the strip transversely through the guide roller group, and to ensure the stable operation of the strip along the center line, reduce the scrap rate and improve the production efficiency by combining with tension control.
[0003] The traditional guide correct mechanism adopts mechanical limiting or single-point detection to detect tension and position, but this guide correct method is slow in response and cannot adapt to high-speed operation. Moreover, the tension detection accuracy of the existing synchronous guide correct strip is low, and it only relies on a single sensor (such as a strain gauge or a displacement sensor), which is prone to interference. In addition, the existing guide roller adjustment range is limited and cannot adapt to strips of different thicknesses or hardness. These problems result in poor strip deviation correction effect and affect the subsequent processing quality. SUMMARY
[0004] The utility model provides a kind of synchronous guide correct strip tension closed loop control mechanism, by three-roll asymmetric layout, double signal detection and electrically regulated structure, realize the high-precision guide correct of strip and tension stable control.
[0005] The utility model provides a kind of synchronous guide correct strip tension closed loop control mechanism, including rack, guide correct roller group and tension detection module;The guide correct roller group adopts the layout of three-roll asymmetric, including the movable guide correct roller of upper axis slippage and the two driven pressure rollers of lower side;The both ends of movable guide correct roller are slidably connected with rack by linear bearing, and the both ends of movable guide correct roller are equipped with the guide correct block that is inclined outward, and the connecting place of rack and linear bearing is equipped with the lifting frame that can be adjusted up and down;The connecting place of driven pressure roller and rack is equipped with bearing seat, and tension detection module is integrated in bearing seat, and tension detection module includes the double signal detection structure of strain gauge and displacement sensor.
[0006] As a preferred technical scheme of the utility model, one end of the movable guide correct roller is connected with an adjusting plate by a rolling bearing outside the lifting frame, and an electric push rod is arranged between the adjusting plate and the lifting frame.
[0007] As a preferred technical scheme of the utility model, the guide correct block is a slope with gradually increasing height from the movable guide correct roller outward, and the inclination angle of the guide correct block is 20-30 degrees.
[0008] As a preferred technical scheme of the utility model, the rack is provided with corresponding sliding grooves at the lifting frame, and the two sides of the inside of the sliding grooves are connected with the lifting frame through screw rods and guide rods.
[0009] As a preferred technical scheme of the utility model, the driven pressure roller surface is coated with a polyurethane elastic layer, the Shore hardness is 70A-90A, and the thickness is 3-8mm.
[0010] As a preferred technical scheme of the utility model, the strain gauge is arranged at a 45° angle on the stress side of the bearing seat, the displacement sensor adopts a non-contact eddy current sensor, and the detection gap is 0.1-0.3mm.
[0011] As a preferred technical scheme of the utility model, the rack is provided with a laser sensor at the driven pressure roller, and the light path plane and the strip running plane of the driven pressure roller form an included angle of 30 degrees-45 degrees.
[0012] The utility model has the advantages compared with the prior art:
[0013] 1. The tension closed loop control mechanism adopts double signal detection of strain gauges and displacement sensors, and combines with dynamic adjustment of the electric push rod to improve the deviation correction response speed and tension stability.
[0014] 2. The tension closed loop control mechanism can axially slide through the movable guide straightening roller, cooperates with the inclined guide straightening block and the polyurethane pressure roller to adapt to the strip of different materials and thicknesses to straighten the track and reduce the abrasion.
[0015] 3. The tension closed loop control mechanism detects the strip position through the laser sensor, can assist the servo motor to drive the lifting frame to fine tune, and ensures the accuracy and reliability of long-term operation. DRAWINGS
[0016] Figure 1 The utility model discloses a kind of synchronous straightening strip tension closed loop control mechanism structures Figure 1 .
[0017] Figure 2 The utility model discloses a kind of synchronous straightening strip tension closed loop control mechanism structures Figure 2 .
[0018] Figure 3 It is the longitudinal sectional stereogram of a kind of synchronous straightening strip tension closed loop control mechanism of the utility model.
[0019] Figure 4 It is the internal structure diagram of the bearing seat of a kind of synchronous straightening strip tension closed loop control mechanism of the utility model.
[0020] As shown in the figure:
[0021] 1, rack; 2, guide roller group; 3, movable guide roller; 4, driven pressure roller; 5, linear bearing; 6, guide block; 7, lifting frame; 8, bearing seat; 9, strain gauge; 10, displacement sensor; 11, rolling bearing; 12, adjusting plate; 13, electric push rod; 14, sliding groove; 15, screw; 16, guide rod; 17, servo motor; 18, polyurethane elastic layer; 19, laser sensor. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0023] In the description of the utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.
[0024] Embodiment 1:
[0025] As shown in the description accompanying drawings Figures 1-3 A synchronous guide belt tension closed-loop control mechanism, comprising a rack 1, a guide roller group 2 and a tension detection module.
[0026] The guide roller group 2 adopts a three-roller asymmetric layout, comprising a movable guide roller 3 that can slide along the axis upward and two driven pressure rollers 4 downward. The surface of the driven pressure roller 4 is covered with a polyurethane elastic layer 18, which has a Shore hardness of 80A and a thickness of 5mm.
[0027] In the utility model, the two ends of the movable guide roller 3 are slidably connected with the rack 1 through linear bearings 5, and the two ends of the movable guide roller 3 are provided with outwardly inclined guide blocks 6. The guide blocks 6 are inclined surfaces that gradually increase in height from the movable guide roller 3 outwardly, and the inclination angle of the guide blocks 6 is 25 degrees.
[0028] The utility model discloses a lifting frame 7 that can be adjusted up and down is equipped with the connection of rack 1 and linear bearing 5, and the rack 1 is located lifting frame 7 and is equipped with corresponding sliding slot 14, and the inside both sides of sliding slot 14 are connected with lifting frame 7 through screw rod 15 and guide rod 16, one end of screw rod 15 is connected with servo motor 17, and one end of movable guide roller 3 is located the outside of lifting frame 7 and is connected with adjusting plate 12 through rolling bearing 11, and adjusting plate 12 is fixed structure relative to lifting frame 7, and the middle is equipped with the opening of the penetration of movable guide roller 3, and electric push rod 13 is equipped between adjusting plate 12 and lifting frame 7.
[0029] The utility model discloses a bearing seat 8 is equipped with the connection of driven pressure roller 4 and rack 1.
[0030] The utility model discloses a laser sensor 19 is equipped with the connection of driven pressure roller 4 and rack 1, and the light path plane is 45 degrees angle of the strip running plane of driven pressure roller 4, and laser sensor 19 is fixed on rack 1 through vertical support, and can adjust the height and angle of laser sensor 19 according to the need.
[0031] As shown in the description Figure 4 The tension detection module is integrated in the bearing seat 8, and the tension detection module includes a double-signal detection structure of the strain gauge 9 and the displacement sensor 10, the strain gauge 9 is arranged at an angle of 45 degrees on the stress side of the bearing seat 8, and the displacement sensor 10 is a non-contact eddy current sensor with a detection gap of 0.15 mm.
[0032] In the specific implementation of the utility model, the strain gauge 9 and the displacement sensor 10 detect the tension change in real time, and the signal is fed back to the control system; if the strip deviates, the electric push rod 13 pushes the movable guide roller 3 to slide horizontally, and the inclined guide block 6 forces the strip to return to the normal position; at the same time, the servo motor 17 adjusts the height of the lifting frame 7 through the screw rod 15, to ensure that the pressure of the driven pressure roller 4 is uniform; the laser sensor 19 assists in monitoring the edge position of the strip, to form a closed-loop control, and finally realizes synchronous guiding and stable tension.
[0033] The above description of the utility model and its implementation is not restrictive, and the specific implementation shown is only one of the implementation of the utility model, and the actual structure is not limited thereto. In general, if a person skilled in the art is inspired, without departing from the creative purpose of the utility model, similar structural modes and embodiments are not creatively designed, which should belong to the protection scope of the utility model.
Claims
1. A synchronous guide belt tension closed-loop control mechanism, characterized in that: It includes a frame (1), a guide roller assembly (2), and a tension detection module; The guide roller group (2) adopts a three-roller asymmetrical layout, including an upper movable guide roller (3) that can slide along the axis and two lower driven pressure rollers (4); The two ends of the movable guide roller (3) are slidably connected to the frame (1) through linear bearings (5), and the two ends of the movable guide roller (3) are provided with outwardly inclined guide blocks (6). The connection between the frame (1) and the linear bearing (5) is provided with an adjustable lifting frame (7). The driven pressure roller (4) is provided with a bearing seat (8) at the connection between it and the frame (1). The tension detection module is integrated in the bearing seat (8) and the tension detection module includes a dual-signal detection structure of strain gauge (9) and displacement sensor (10).
2. The synchronous guide belt tension closed-loop control mechanism according to claim 1, characterized in that: One end of the movable guide roller (3) is located on the outside of the lifting frame (7) and is connected to an adjusting plate (12) via a rolling bearing (11). An electric push rod (13) is provided between the adjusting plate (12) and the lifting frame (7).
3. The synchronous guide belt tension closed-loop control mechanism according to claim 1, characterized in that: The guide block (6) is an inclined surface that gradually increases in height from the movable guide roller (3) outwards, and the inclination angle of the guide block (6) is 20 degrees to 30 degrees.
4. The synchronous guide belt tension closed-loop control mechanism according to claim 1, characterized in that: The frame (1) is provided with a corresponding sliding groove (14) at the lifting frame (7), and the two sides inside the sliding groove (14) are connected to the lifting frame (7) through screws (15) and guide rods (16). One end of the screw (15) is connected to a servo motor (17).
5. The synchronous guide belt tension closed-loop control mechanism according to claim 1, characterized in that: The driven pressure roller (4) is covered with a polyurethane elastic layer (18) with a Shore hardness of 70A-90A and a thickness of 3-8mm.
6. The synchronous guide belt tension closed-loop control mechanism according to claim 1, characterized in that: The strain gauge (9) is arranged at a 45° angle on the force-bearing side of the bearing housing (8), and the displacement sensor (10) is a non-contact eddy current sensor with a detection gap of 0.1-0.3 mm.
7. The synchronous guide belt tension closed-loop control mechanism according to claim 1, characterized in that: The frame (1) is equipped with a laser sensor (19) at the driven pressure roller (4), and its optical path plane forms an angle of 30 degrees to 45 degrees with the strip running plane of the driven pressure roller (4).