SU1232319A1 - Two-position coiling and uncoiling device - Google Patents

Description

The invention relates to mechanical engineering, in particular to the design of two-stage winding-unwinding devices used in rolling mills.

The purpose of the invention is to improve the operating conditions.

FIG. 1 shows the device, a general view; in fig. 2 is a view A of FIG. one; in fig. 3 shows a section BB in FIG. one; in fig. 4 shows a section B-B in FIG. 2; in fig. 5-11 are diagrams of successive positions of the levers of the fixing unit at the unwinding position when the drum is put over.

The two position winder-unwinding device comprises a base 1 with inclined guides 2, which smoothly pass into the end semicircular sockets. In the end sockets there are interchangeable drums 3 and 4, consisting of a barrel fixed on rolling bearings in rollers 5. The drums are connected by coupling couplings 6 and 7 to the winding drives 8 and unwinding 9 strips.

Directly above the winding drum 3, a winding clamp assembly is installed on the base, consisting of a pneumatic cylinder 10 connected by a lever system with a clamping roller 11. In the lower part of the base 1 under the drum 4 of the unwinder there is a decoiler clamp assembly made in the form of a clamping roller 12 connected to a pneumatic cylinder 13.

In the zone of the drum 3 at the base there is an assembly of a reel of the winding drum consisting of two levers 14 fixed on the axles at the base 1 and connected each with its own hydraulic cylinder 15.

The drums 3 and 4 are provided with mechanisms for clamping the front end of the strip, and a driver 16 is installed in front of the winding drum, driven by a pneumatic cylinder 17.

Directly behind the reel drum on the fingers 18, parallel to the axes of the end of the semi-circular base sockets, two double-arm levers 19 are installed. One arm of each arm 19 is connected by a pull bar 20 with a lever fixed on a rolling pin 21, which is connected to another hydraulic cylinder 22 mounted based. On the other arms of the arms 19, hooks 23 are hinged together, each connected to its hydraulic cylinder 24 placed on two shoulders. The hooks 23 are made in the form of two sidewalls 25 and 26, interconnected by a transverse rib 27 provided with a stop plate.

Two-position winder-unwinding device operates as follows.

In the initial position, the winding drum 3 is fixed in the semicircular sockets of the base 1 by levers 14 interacting with the rollers 5. The end of the strip is guided by the driver 16 into the receiving slot of the barrel of the winding drum and is clamped by a special mechanism. The drive motor 8 is turned on, which, through the gearboxes and the included clutch 7, rotates the drum 3, winding the roll. When this roller 11 of the clamping mechanism is pressed by the pneumatic cylinder 10 to the surface of the coiled winding, providing a tight winding strip.

At the same time, a drum 4 with a roll is installed in the unwinding position in the semicircular end sockets of the base 1. In this case, the levers 19 are deployed by a hydraulic cylinder 22

to the extreme right position, and the hooks 23 are turned by their hydraulic cylinders 24, pressing the stop plates against the rollers 5 and fixing the drum 4 in the unwinding position (position I, Fig. 5). After the end of the runway task, the unwinding line is turned on.

unwinding drive motor 9, connected through gearboxes and included coupling coupling 6 with drum 4. When unwinding, the unwind drive motor 9 operates in generator mode, providing

band tension required. The roller 12, when unwinding, is pressed by the pneumatic cylinder 13 to the surface of the roll, protecting the roll from being fanned out at random fluctuations of the unwinding speed and the tension of the strip.

After the end of unwinding and turning off the drive 9, the hydraulic cylinder of the clutch 6 displaces it in the axial direction, separating the drum 4 from the drive. The hooks 23 are deployed by the hydraulic cylinders 24 relative to the levers 19, which, in turn, are deployed by the hydraulic cylinder 22, successively occupying the position II-HI-IV-V-VI. In this case, the hooks 23 pick up the drum 4 by the necks of the barrel and lift it above the base 1. After that, the pneumatic cylinder 13 unfolds the pressure roller 12, shifting it to the upper position.

Upon completion of the winding of the roll on the drum 3, the drive motor 8 is turned off, and the coupling sleeve 7 is displaced along its axis by the action of its hydraulic cylinder

disconnect the drum and drive. The levers 14, under the action of the hydraulic cylinders 15, turn to the extreme left position and sink below the level of the guides. The drum 3 with the wound roll, following the levers 14, rolls down along the guide tracks. In this case, the pressure roller 11 under the action of the pneumatic cylinder 10 accompanies the roll, preventing it from fluffing. Having reached the raised pinch roller 12, the drum with the roll continues to roll along the guides, "crushing the pneumatic cylinder 13 through the roller 12, which prevents the roll from fluffing after the roller 11 has reached its extreme position. After the rollers 5 of the drum 3 have taken up their position in the semicircular sockets of the base, the levers 19 are pivoted from position VI to position VII under the action of the hydraulic cylinder 22 and the empty drum 4 is placed on rails. The hooks 23 are deployed by the hydraulic cylinders 24 to position I, pressing the stop plates against the rollers 5 of the drum 3. At the same time, the levers 14 are turned by the hydraulic cylinders 15 to the right, picking up the empty drum 4 and locking it in the winding position.

After loading the drums into the appropriate positions, the drives of the coupling sleeves 6 and 7 are connected, connecting the drums with the drives 8 and 9, and then the device is operated in a similar way.

Such an embodiment of the two-position reeling device allows the empty drum to be overloaded with the help of the unwinding drum fixing unit. At the same time, there is no need for a special overloading unit, which has considerable dimensions and weight.

Moving an empty drum during its transfer is carried out within the zones released when the drum rolls over to a roll, therefore, no special reloading zone is required, the length of which should

be no less than the diameter of the empty drum. This reduces the size of the device in length, which also helps to reduce its weight.

Performing the locking assembly as well as the drum retraction functions simplifies the control, and hence the operation of the device, since instead of controlling two separate assemblies — the drum retraction assembly and the fixing assembly — the operator controls one fixation assembly.

The transfer of the empty drum with the help of the drum fixing unit of the decoiler makes it possible to carry out the guides with one-sided inclination towards the unwinding position, which simplifies the operation of rolling the drum with the roll as it rolls into the unwind position under its own weight. This simplifies the operation of the device and reduces energy costs. This also simplifies the design and manufacturing techniques of the guides, since there is no need to make special grooves in them for fixing the empty drum when it is reloaded.

The technical and economic effect from the implementation of the invention is achieved by improving the operating conditions in comparison with the known device.

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Compiled by E. Ayvazov

Editor N. MargolinTechred I. VeresKorrektor V. Sinitska

Order 2496/9 Circulation 783 Subscription

VNIIPI USSR State Committee

inventions and discoveries

113035, Moscow, Zh-35, Raushsk nab. 4/5

Branch PPP "Patent, Uzhgorod, st. Project, 4

Claims (1)

TWO-POSITION WINDING-REWINDING DEVICE, containing a base with semicircular sockets for placing drums, mounted on the base guides for moving the drums, a drive for rotating the latter, as well as nodes for clamping and fixing them at the mentioned positions, characterized in that, in order to improve operating conditions, the assembly fixing the drums on the unwinding position is made in the form of a rolling pin mounted at the base parallel to the axes of the said nests and two fingers, connected to the rolling pin of the lever, a power cylinder, the pus of which is articulated with the base, and the movable element with the mentioned lever, as well as a two-link lever-hydraulic transmission, each of the links of which is made in the form of a two-shouldered lever, articulated with one of the above fingers, an earring connected to a rolling pin, one pull the end of which is articulated with a rolling pin, and the other with one of the shoulders of the two shoulders of the lever, the hydraulic cylinder mounted on this shoulder of the two shoulders of the lever, as well as the hook with the stop bar, with each of its hooks - the middle part of the hinge articulated to the last ~ it of said respective shoulders / double-arm lever and one end - corresponding to the movable member of the hydraulic cylinder, thrust straps, and hooks mounted to cooperate - with respective drums. “