Quick opening device for roll gap of straightening machine

Abstract

The utility model discloses a roll gap quick-opening device of a straightening machine, and relates to the technical field of metal rolling devices. The device comprises an upper roller seat and a lower roller seat, the discharging end of the upper roller seat is rotationally connected with the discharging end of the lower roller seat, and the device further comprises a quick connecting assembly and an oil cylinder which are arranged on the two sides of the feeding end of the upper roller seat and the two sides of the feeding end of the lower roller seat. The quick connecting assembly comprises a top block, a fixing pin, a connecting pin and a buckling plate, the top block and the fixing pin are sequentially and fixedly connected to the side wall of the upper roller seat from top to bottom, the connecting pin is correspondingly arranged below the fixing pin and fixedly connected to the side wall of the lower roller seat, the buckling plate is in an inverted triangle shape, one base angle is rotationally connected with the fixing pin, and the other base angle is provided with a connecting rotating shaft. A bayonet which can be buckled with the connecting pin is arranged at the vertex angle of the connecting rod; the cylinder bottom of the oil cylinder is rotationally connected below the lower roller seat, and the output end of the oil cylinder is rotationally connected with the connecting rotating shaft. According to the roll gap quick-opening device of the straightening machine, the step of detaching bolts is omitted when the roll gap is opened, and stable connection can be achieved when the roll gap is closed.

Description

Technical Field

[0001] The utility model relates to the technical field of metal rolling devices, and particularly relates to a quick-opening device for the roll gap of a straightening machine. Background Art

[0002] The uncoiling of metal sheets refers to the process of unfolding coiled metal materials into flat sheets through an uncoiler. After the metal sheets are unfolded, they also need to be leveled and other treatments to meet the requirements of subsequent processing. For some metal coils with relatively large elasticity, the coil heads are prone to deformation and warping during uncoiling. When the coil heads of the metal coils are severely deformed, they cannot be smoothly fed into the straightening machine. At this time, it is necessary to lift the upper roll seat of the straightening machine to open the roll gap of the straightening rolls, and then close the roll gap after feeding.

[0003] Existing straightening machines usually use an oil cylinder mechanism to lift the upper roll seat. However, when the roll gap is closed, it often relies only on the real-time pressure maintaining connection of the oil cylinder or connecting the upper and lower roll seats through bolts. Relying only on the real-time pressure maintaining connection of the oil cylinder, there is a problem that the roll gap closure is not firm enough; connecting the upper and lower roll seats through bolts requires disassembling the bolts when lifting, which is not convenient to use. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a quick-opening device for the roll gap of a straightening machine, which omits the step of disassembling bolts when the roll gap is lifted and can achieve a firm connection when the roll gap is closed.

[0005] To solve the above technical problem, the utility model adopts the following technical solutions:

[0006] A quick-opening device for the roll gap of a straightening machine includes an upper roll seat and a lower roll seat. The discharging end of the upper roll seat is rotatably connected to the discharging end of the lower roll seat. It also includes a quick-connection component and an oil cylinder arranged on both sides of the feeding ends of the upper roll seat and the lower roll seat. The quick-connection component includes a top block, a fixed pin, a connecting pin, and a buckling plate. The top block and the fixed pin are fixedly connected to the side wall of the upper roll seat from top to bottom in sequence. The connecting pin is correspondingly arranged below the fixed pin and is fixedly connected to the side wall of the lower roll seat. The buckling plate is in an inverted triangle shape. One bottom angle of it is rotatably connected to the fixed pin, the other bottom angle is provided with a connecting rotating shaft, and the top angle is provided with a bayonet that can be buckled with the connecting pin. The bottom of the oil cylinder is rotatably connected below the lower roll seat, and the output end of the oil cylinder is rotatably connected to the connecting rotating shaft.

[0007] As a further elaboration of the above technical solution:

[0008] In the above technical solution, the bayonet is a U-shaped opening facing the connecting pin.

[0009] In the above technical solution, one end of the fixed pin passes through the buckling plate and is fixedly connected with an end cover, and the other end passes through the side wall of the upper roll seat and is threadedly connected with a nut; one end of the connecting rotating shaft passes through the output end of the oil cylinder and is fixedly connected with an end cover, and the other end passes through the buckling plate and is threadedly connected with a nut.

[0010] In the above technical solution, a nut gasket and a spring washer are provided between the nut and the side wall of the upper roll seat on the fixing pin; a nut gasket and a spring washer are also provided between the nut and the fastening plate on the connecting rotating shaft.

[0011] Compared with the prior art, the utility model at least realizes the following beneficial effects:

[0012] Quick-connection components and an oil cylinder are arranged on both sides of the feeding ends of the upper roll seat and the lower roll seat. The upper roll seat can be lifted by the oil cylinder and the quick-connection components. The quick-connection components include a top block, a fixing pin, a connecting pin and a fastening plate. The bottom of the oil cylinder is rotatably connected, and the output end of the oil cylinder is rotatably connected with the connecting rotating shaft. When the output end of the oil cylinder extends, the fastening plate rotates around the fixing pin and disengages from the connecting pin, and the fastening plate continues to push the top block upward to lift the upper roll seat, so that the roll gap is opened. The fastening plate follows the output end of the oil cylinder to rise until the stroke is completed. During the whole lifting process, there is no need to remove the bolts, realizing quick opening and convenient use; when the output end of the oil cylinder contracts, the fastening plate rotates around the fixing pin until the bayonet of the fastening plate is buckled with the connecting pin, with quick connection. The oil cylinder only plays an auxiliary role, and the connection between the fastening plate and the connecting pin belongs to a hard connection, which is more stable and reliable than only relying on the oil cylinder to maintain pressure in real time. Description of the Drawings

[0013] Figure 1 is a schematic structural view of the upper roll seat of this embodiment in a closed state;

[0014] Figure 2 is a schematic structural view of the upper roll seat of this embodiment in a lifted state;

[0015] Figure 3 is a schematic connection structural view of the quick-connection components of this embodiment.

[0016] The reference numerals in the figure are: 1, upper roll seat; 2, lower roll seat; 3, quick-connection components; 31, top block; 32, fixing pin; 33, connecting pin; 34, fastening plate; 4, oil cylinder; 5, connecting rotating shaft; 6, bayonet; 7, end cover; 8, nut; 9, nut gasket; 10, spring washer; 20, upper straightening roll; 30, lower straightening roll. Detailed Embodiment

[0017] The present utility model will be described in detail below with reference to the exemplary embodiments in the drawings. It should be understood, however, that the present application can be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided herein to make the disclosure of the present application more complete and to fully convey the concept of the present application to those skilled in the art.

[0018] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "several" and "multiple" is two or more, unless otherwise specifically defined. In the present application, unless otherwise clearly specified and limited, terms such as "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances. In the present application, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0019] As Figures 1 to 3As shown in the figure, a quick-opening device for the roll gap of a straightening machine includes an upper roll seat 1, a lower roll seat 2, a quick-connection assembly 3 and an oil cylinder 4. The discharging end of the upper roll seat 1 is rotatably connected to the discharging end of the lower roll seat 2, and an upper straightening roll 20 and a lower straightening roll 30 are respectively rotatably connected to the upper roll seat 1 and the lower roll seat 2; the quick-connection assembly 3 and the oil cylinder 4 are arranged on both sides of the feeding ends of the upper roll seat 1 and the lower roll seat 2. Among them, the quick-connection assembly 3 includes a top block 31, a fixing pin 32, a connecting pin 33 and a buckling plate 34. The top block 31 and the fixing pin 32 are fixedly connected to the side wall of the upper roll seat 1 from top to bottom in sequence. The connecting pin 33 is correspondingly arranged below the fixing pin 32 and is fixedly connected to the side wall of the lower roll seat 2. The buckling plate 34 is in an inverted triangle shape. One bottom angle is rotatably connected to the fixing pin 32, the other bottom angle is provided with a connecting rotating shaft 5, and the top angle is provided with a bayonet 6 that can be buckled with the connecting pin 33; the bottom of the oil cylinder 4 is rotatably connected below the lower roll seat 2, and the output end earring of the oil cylinder 4 is rotatably connected to the connecting rotating shaft 5.

[0020] Optionally, the bayonet 6 is a U-shaped opening facing the connecting pin 33.

[0021] Optionally, one end of the fixing pin 32 passes through the buckling plate 34 and is fixedly connected with an end cover 7, and the other end passes through the side wall of the upper roll seat 1 and is threadedly connected with a nut 8; one end of the connecting rotating shaft 5 passes through the output end of the oil cylinder 4 and is fixedly connected with an end cover 7, and the other end passes through the buckling plate 34 and is threadedly connected with a nut 8. Further, a nut gasket 9 and a spring washer 10 are arranged between the nut 8 and the side wall of the upper roll seat 1 on the fixing pin 32; a nut gasket 9 and a spring washer 10 are also arranged between the nut 8 and the buckling plate 34 on the connecting rotating shaft 5. The nut gasket 9 is used to increase the contact area between the nut 8 and the side wall of the upper roll seat 1 or the buckling plate 34, disperse the pressure, and improve the connection durability. The spring washer 10 provides a pre-tightening force and absorbs vibration through elastic deformation to prevent the nut 8 from loosening due to vibration.

[0022] The working process of the present utility model is as follows:

[0023] When a metal coil with a severely deformed coil head is fed, it is necessary to open the roll gap. As the oil cylinder 4 swings and the output end extends, the buckling plate 34 rotates around the fixing pin 32 and disengages from the connecting pin 33. The buckling plate 34 continues to push the top block 31 upward to lift the upper roll seat 1, so that the roll gap is opened. The buckling plate 34 follows the output end of the oil cylinder 4 to rise until the stroke is completed. During the entire lifting process, there is no need to perform the step of removing bolts, realizing quick opening; when closing the roll gap, as the oil cylinder 4 swings and the output end contracts, the buckling plate 34 rotates around the fixing pin 32 until the bayonet 6 of the buckling plate 34 is buckled with the connecting pin 33, so as to realize the stable connection of the upper roll seat 1 and the lower roll seat 2. The connection process is fast, and the oil cylinder 4 only plays an auxiliary role in this process. Since the connection between the buckling plate 34 and the connecting pin 33 belongs to a hard connection, it is more stable and reliable than only relying on the oil cylinder 4 to maintain pressure in real time, ensuring the stable operation of the straightening machine.

[0024] It should be understood that all of the above embodiments are exemplary rather than restrictive. Under the concept of the present utility model, any modifications, equivalent changes, and modifications made by those skilled in the art to the specific embodiments described above still fall within the scope of the technical solution of the present utility model.

Claims

1. Straightening machine roll gap quick-opening device, including an upper roll seat (1) and a lower roll seat (2), the discharge end of the upper roll seat (1) is rotationally connected to the discharge end of the lower roll seat (2), characterized in that: It further includes a quick connection assembly (3) and an oil cylinder (4) arranged on both sides of the feeding ends of the upper roller seat (1) and the lower roller seat (2); the quick connection assembly (3) includes a top block (31), a fixing pin (32), a connecting pin (33) and a buckling plate (34), the top block (31) and the fixing pin (32) are fixedly connected to the side wall of the upper roller seat (1) in sequence from top to bottom, the connecting pin (33) is correspondingly arranged below the fixing pin (32) and is fixedly connected to the side wall of the lower roller seat (2), the buckling plate (34) is in an inverted triangle shape, one bottom angle of which is rotatably connected to the fixing pin (32), the other bottom angle is provided with a connecting rotating shaft (5), and the top angle is provided with a bayonet (6) that can be buckled with the connecting pin (33); the bottom of the oil cylinder (4) is rotatably connected below the lower roller seat (2), and the output end of the oil cylinder (4) is rotatably connected to the connecting rotating shaft (5).

2. The roll gap quick-opening device of the straightening machine according to claim 1, wherein: The bayonet (6) is a U-shaped opening facing the connecting pin (33).

3. The roll gap quick-opening device of the straightening machine according to claim 1, characterized in that: One end of the fixing pin (32) passes through the buckling plate (34) and is fixedly connected with an end cover (7), and the other end passes through the side wall of the upper roller seat (1) and is threadedly connected with a nut (8); one end of the connecting rotating shaft (5) passes through the output end of the oil cylinder (4) and is fixedly connected with an end cover (7), and the other end passes through the buckling plate (34) and is threadedly connected with a nut (8).

4. The straightening machine roll gap quick-opening device according to claim 3, characterized in that: A nut gasket (9) and a spring washer (10) are arranged between the nut (8) and the side wall of the upper roller seat (1) on the fixing pin (32); a nut gasket (9) and a spring washer (10) are also arranged between the nut (8) and the buckling plate (34) on the connecting rotating shaft (5).

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