A floating tension measuring roller device in front of a furnace

Abstract

The utility model belongs to the technical field of strip tension control, and provides a floating tension measuring roller device in front of a furnace, including a tension meter roller, a first guide roller, an active roller, a second guide roller, a cylinder, and a rotating rod; the strip passes through the tension meter roller, the first guide roller, the active roller, and the second guide roller in sequence and then enters the annealing furnace, the rotating rod is hinged with the first support, the first end of the cylinder is hinged with the first end of the rotating rod, the second end of the cylinder is hinged with the first support, and the active roller is installed at the second end of the rotating rod. When the device is in use, when the speed is too fast or too slow, the tension of the strip in the furnace changes, and the cylinder can be extended and retracted to drive the rotating rod to rotate, change the position of the active roller, and then adjust the tension of the strip, thereby solving the problem that when the speed is too fast or too slow, the tension of the strip in the furnace is unstable, which easily causes the strip in the furnace to wrinkle, break or drag, and seriously affects product quality and normal production.

Description

Technical Field

[0001] The utility model belongs to the technical field of strip steel tension control, and in particular relates to a furnace front floating tension measuring roller device. Background Art

[0002] The main function of the tension measuring roller in front of the furnace is to detect the tension of the strip before entering the furnace. When the strip passes through the tension measuring roller in front of the furnace and enters the annealing furnace for work, the movement is fast or slow. For example, when the transmission motor speed is too fast, it is easy to cause the strip in the furnace to wrinkle, and in serious cases, it will cause the strip in the furnace to break; when the transmission motor speed is too slow, it will cause the strip to drag. Therefore, when the speed is too fast or too slow, it will affect product quality and normal production.

[0003] Existing furnace front measuring roller, such as Figure 1 As shown, the position of the measuring roller 10 is fixed, and it can only measure the tension of the strip in the furnace or control the direction of the strip entering the heating furnace mouth, and cannot solve the above-mentioned problem. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a floating tension measuring roller device in front of the furnace, which can solve the problem that when the speed is too fast or too slow, the tension of the strip in the furnace is unstable, which may easily cause the strip to wrinkle, break or drag, seriously affecting product quality and normal production.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a floating tension measuring roller device in front of a furnace, comprising a tension meter roller, a first guide roller, a movable roller, a second guide roller, a cylinder, and a rotating rod;

[0006] The tensiometer roller, the first guide roller, the movable roller, and the second guide roller are axially parallel. The strip steel passes around the tensiometer roller, the first guide roller, the movable roller, and the second guide roller in sequence and then enters the annealing furnace. The rotating rod is hinged to the first support member, and the hinge axis of the rotating rod and the first support member is axially parallel to the movable roller. The first end of the cylinder is hinged to the first end of the rotating rod, and the second end of the cylinder is hinged to the first support member. The movable roller is installed at the second end of the rotating rod.

[0007] Preferably, a PLC controller is further included, wherein the PLC controller is electrically connected to the tension meter of the tension meter roller, and the PLC controller is used to control the extension and retraction of the cylinder.

[0008] Preferably, the first guide roller is mounted on the second support member.

[0009] Preferably, the tensiometer roller is mounted on a third support member.

[0010] Preferably, the second guide roller is mounted on the first support member.

[0011] Preferably, the first support member, the second support member, and the third support member are all installed on the bottom plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model provides a floating tension measuring roller device in front of a furnace. When the speed is too fast or too slow, the tension of the strip in the furnace changes. The cylinder can be extended and retracted to drive the rotating rod to rotate, change the position of the movable roller, and then adjust the tension of the strip. This can solve the problem that when the speed is too fast or too slow, the tension of the strip in the furnace is unstable, which easily causes the strip in the furnace to wrinkle, break or drag, seriously affecting product quality and normal production.

[0014] 2. The utility model provides a floating tension measuring roller device in front of the furnace, which can automatically control the extension and retraction of the cylinder according to the actual tension size through a PLC controller combined with a tension meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view structural schematic diagram of the furnace front measuring roller in the prior art when it is used;

[0016] Figure 2 A schematic diagram of the front structure of a furnace front floating tension measuring roller device provided by an embodiment of the utility model when in use;

[0017] Figure 3 A front view structural schematic diagram of a furnace front floating tension measuring roller device provided by an embodiment of the utility model;

[0018] Figure 4 The present invention is a front view structural schematic diagram of a furnace front floating tension measuring roller device provided by an embodiment of the present invention when a rotating rod rotates.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. Tension meter roller; 2. First guide roller; 3. Active roller; 4. Second guide roller; 5. Cylinder; 6. Rotating rod; 7. PLC controller; 8. Strip steel; 9. Annealing furnace; 10. Tension measuring roller; 11. First support member; 12. Second support member; 13. Third support member; 14. Bottom plate. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below in conjunction with specific embodiments so that those skilled in the art can understand the present invention more clearly.

[0022] It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrally formed structure. For ordinary technicians in this field, the specific meanings of such terms in this patent can be understood according to specific circumstances.

[0023] Example 1

[0024] like Figure 2 As shown, this embodiment provides a furnace front floating tension measuring roller device, including a tension meter roller 1, a first guide roller 2, a movable roller 3, a second guide roller 4, a cylinder 5, and a rotating rod 6;

[0025] The tensiometer roller 1, the first guide roller 2, the active roller 3, and the second guide roller 4 are axially parallel, and the strip steel 8 passes through the tensiometer roller 1, the first guide roller 2, the active roller 3, and the second guide roller 4 in sequence and then enters the annealing furnace 9. For example, Figure 3 As shown, the tension meter roller 1, the first guide roller 2, the active roller 3, and the second guide roller 4 are all axially arranged horizontally, and the tension meter roller 1, the first guide roller 2, and the second guide roller 4 have the same height, and the height of the active roller 3 is lower than that of the other three rollers. The strip steel 8 is transported by a transmission motor, and the strip steel 8 first passes over the tension meter roller 1, then passes over the first guide roller 2, then passes under the active roller 3, and finally passes over the second guide roller 4 to enter the annealing furnace 9.

[0026] The rotating rod 6 is hinged to the first support member 11, and the hinge axis of the rotating rod 6 and the first support member 11 is parallel to the axis of the movable roller 3, so that the rotating rod 6 can rotate in a vertical plane, and when the rotating rod 6 rotates, the height position of the movable roller 3 can be adjusted. The first end of the cylinder 5 is hinged to the first end of the rotating rod 6, and the second end of the cylinder 5 is hinged to the first support member 11. The movable roller 3 is installed at the second end of the rotating rod 6, so that when the cylinder 5 is extended or retracted, the rotating rod 6 can be driven to rotate, and the height position of the movable roller 3 can be adjusted.

[0027] Based on the above structure, Figure 4As shown, when the speed of the transmission motor is too fast, the tension of the steel strip in the furnace becomes smaller, and the steel strip in the furnace may be wrinkled or broken. At this time, the cylinder 5 can be extended, that is, the first end of the cylinder 5 swings upward, driving the first end (left end) of the rotating rod 6 to swing upward, so that the second end (right end) of the rotating rod 6 swings downward, driving the movable roller 3 to move downward, that is, the distance between the movable roller 3 and the first guide roller 2 and the second guide roller 4 becomes farther, so that the tension of the steel strip in the furnace can be increased and the tension of the steel strip in the furnace can be kept unchanged;

[0028] When the speed of the transmission motor is too slow, the tension of the strip in the furnace becomes larger, and the strip in the furnace may be dragged. At this time, the cylinder 5 can be shortened, that is, the first end of the cylinder 5 swings downward, driving the first end (left end) of the rotating rod 6 to swing downward, so that the second end (right end) of the rotating rod 6 swings upward, driving the movable roller 3 to move upward, that is, the distance between the movable roller 3 and the first guide roller 2 and the second guide roller 4 becomes shorter, so that the increased tension can be released and the tension of the strip in the furnace can be kept unchanged.

[0029] Therefore, when the speed is too fast or too slow, the tension of the strip in the furnace changes. The cylinder 5 can be extended and retracted to drive the rotating rod 6 to rotate, thereby changing the position of the movable roller 3, and then adjusting the tension of the strip in the furnace. This can solve the problem that when the speed is too fast or too slow, the tension of the strip in the furnace is unstable, which can easily cause the strip in the furnace to wrinkle, break or drag, seriously affecting product quality and normal production.

[0030] The floating tension measuring roller device in front of the furnace provided in this embodiment also includes a PLC controller 7, which is electrically connected to the tension meter of the tension meter roller 1. The PLC controller 7 is used to control the extension and contraction of the cylinder 5, that is, the PLC controller 7 is also electrically connected to the cylinder 5. The tension meter roller 1 is provided with a tension meter, which can detect the tension of the strip steel 8 in real time. The PLC controller 7 can control the extension and contraction of the cylinder 5 by controlling the solenoid valve. By combining the PLC controller 7 with the tension meter, the extension and contraction of the cylinder can be automatically controlled according to the actual tension.

[0031] Specifically, when the transmission motor speed is too slow, the tension detected by the tension meter roller 1 increases, and the tension information is fed back to the PLC controller 7, and the PLC controller 7 transmits a shortening signal to the cylinder 5, so that the cylinder 5 shortens, and the second end (right end) of the rotating rod 6 swings upward, which can release the increased tension, thereby maintaining the tension of the strip in the furnace unchanged;

[0032] When the transmission motor speed is too fast, the tension detected by the tension meter roller 1 becomes smaller, and the tension information is fed back to the PLC controller 7. The PLC controller 7 transmits the elongation signal to the cylinder 5, so that the cylinder 5 is elongated, and the second end (right end) of the rotating rod 6 swings downward, which can increase the tension of the strip in the furnace, thereby keeping the tension of the strip in the furnace unchanged.

[0033] In this embodiment, the first guide roller 2 is installed on the top of the second support member 12 .

[0034] The tensiometer roller 1 is installed on the top of the third support member 13 .

[0035] The second guide roller 4 is installed on the top of the first support member 11 .

[0036] The first support member 11 , the second support member 12 , and the third support member 13 are all mounted on a bottom plate 14 .

[0037] The bottom plate 14 can realize the integration of the device, which is beneficial to the overall transportation or storage of the device. Moreover, the arrangement of the bottom plate 14 can ensure the relative position stability of the four guide rollers and improve the operation stability of the device.

[0038] The mechanisms, components and parts not specifically described in the present invention are all existing structures in the prior art and can be directly purchased from the market.

[0039] In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present utility model. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0040] The above is only a preferred embodiment of the utility model, and is not intended to limit the protection scope of the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A floating tension measuring roller device in front of a furnace, characterized in that: It comprises a tension meter roller (1), a first guide roller (2), a movable roller (3), a second guide roller (4), a cylinder (5), and a rotating rod (6); The tensiometer roller (1), the first guide roller (2), the movable roller (3), and the second guide roller (4) are axially parallel. The strip steel (8) passes around the tensiometer roller (1), the first guide roller (2), the movable roller (3), and the second guide roller (4) in sequence and then enters the annealing furnace (9). The rotating rod (6) is hinged to the first support member (11). The hinge axis between the rotating rod (6) and the first support member (11) is axially parallel to the movable roller (3). The first end of the cylinder (5) is hinged to the first end of the rotating rod (6). The second end of the cylinder (5) is hinged to the first support member (11). The movable roller (3) is installed on the second end of the rotating rod (6).

2. The floating tension measuring roller device in front of a furnace according to claim 1, characterized in that: It also comprises a PLC controller (7), the PLC controller (7) being electrically connected to the tension meter of the tension meter roller (1), and the PLC controller (7) being used to control the extension and retraction of the cylinder (5).

3. The floating tension measuring roller device in front of a furnace according to claim 1, characterized in that: The first guide roller (2) is mounted on the second support member (12).

4. The floating tension measuring roller device in front of a furnace according to claim 3, characterized in that: The tensiometer roller (1) is mounted on a third support member (13).

5. The floating tension measuring roller device in front of a furnace according to claim 4, characterized in that: The second guide roller (4) is mounted on the first support member (11).

6. A furnace front floating tension measuring roller device according to claim 5, characterized in that: The first support member (11), the second support member (12), and the third support member (13) are all mounted on a bottom plate (14).

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