RU2228229C2 - Apparatus for uncoiling and coiling metallic articles - Google Patents

Abstract

FIELD: plastic metal working, namely apparatuses for uncoiling and coiling metallic articles, possibly in aggregates for bending shapes, electrically welding tubes, in systems for slitting strip and rolling small bars. SUBSTANCE: apparatus for uncoiling and coiling metallic articles has removable coiling-uncoiling drum with housing having inner sliding surface. Inside housing of drum slide with wedge faces having row of radial openings is arranged; in said openings are arranged with possibility of axial motion: clamping shoes, cleats, springs and pushers engaging by their wedge surfaces with wedge faces of slide. Lid is mounted on free end of frame. Manually controlled shoe brake engaging with braking block mounted on free end of hollow shaft is supported by means of said lid. Rotation drive in the form of reduction gear with electric drive unit or in the form of hydraulic motor is mounted on free end of framework. Free end of hollow shaft is in the form of gear wheel engaged with pinion of reduction gear or hydraulic motor. In inner opening of framework hollow body is placed with possibility of motion by means of hydraulic cylinder. Said hollow body is designed for mounting in bearing assemblies of hollow shaft. Rotation drive unit is mounted on end of hollow body. Apparatus is provided with loading- unloading unit; framework has two coaxially arranged parts with inner openings in which hollow bodies are mounted with possibility of motion by means of hydraulic cylinders. Said bodies are designed for mounting in rolling bearing assemblies of hollow shaft. Framework has T-shaped foundation for placing loading-unloading unit. The last is in the form of frame mounted on T-shaped foundation with possibility of motion along vertical line by means of hydraulic cylinder and having inner lateral guides on which carriage may move. Coilinguncoiling drum has two rows of pushers; slide has two wedge faces; clamping shoes are detachable and common ones. Two adjacent clamping shoes are kinematically joined one with another through connecting links and shaft by means of single-arm clamping levers. Apparatus is also provided with lateral jaws having pressure roller; said jaws are mounted on coaxially arranged parts of framework turned one to another and having inner openings. Members of cam coupling are provided on free ends of housing of coiling-uncoiling drums. EFFECT: minimum size, lowered material consumption and costs for making and maintaining apparatus, possibility of uncoiling and coiling narrow and wide different-mass coils of metallic articles, simultaneously coiling-uncoiling several narrow articles, uncoiling and coiling at lateral or axial guiding or discharging of coils. 9 cl, 14 dwg

Description

The invention relates to the field of metal forming, and more specifically to devices for unwinding or winding metal coils, and can be used in roll forming, pipe welding units, in units of longitudinal strip cutting and in small grades.

Quality, cost and volume of production are the defining indicators of any production. The greatest successes in the conditions of market relations are achieved by teams that have, first of all, mobile, universal, competitive equipment with the original constructive implementation of both individual parts and assemblies, and machines, including by giving them several consumer properties (technological capabilities), degree of unification, flexible layout, cost reduction in their manufacture and operation.

Widespread equipment for pipe welding, roll forming, small grades, as well as units for longitudinal-transverse cutting and protective coating of metal products are uncoilers and coilers, which for the most part are completely different in design and have more disadvantages than advantages.

A unwinding device is known comprising a hollow shaft cantileverly mounted in supports, a drum with articulated links for clamping. Clamping of rolls of sheet material is carried out by a helical transmission using an electric drive (see AS of the USSR No. 948483, MKL V 21 C 47/18, decl. 29.12.89, publ. 10.08.82).

A drum with hinged links cannot be used for winding metal products, since its design is not able to transmit significant torques and does not have a large spatial rigidity. The helical gear due to jamming during operation "against the stop" in combination with a mechanical drive makes the unwinding device inoperative.

The known device due to the sequential placement of elements in the direction of the axis of rotation has significant dimensions and metal consumption. Due to the articulated links, the drum itself for clamping also has significant axial dimensions and therefore, when working with rolls up to 100 mm wide, its working surface is not fully used.

It is also known a device for winding and unwinding strip material containing a bed, a drum installed in the bearings, a drum drive and two braking mechanisms (see AS USSR No. 691224, M. Cl. 21 C 47/06, application. 27.07 .77, publ. 20.10.79).

First, a considerable mass roll is wound onto the drum due to the joining of individual source strips into an endless strip to be fed into the processing zone of a continuous unit. For smooth operation, two such devices are installed in the unit. During the operation of one of them in the operating mode of the unwinder, the second operates in the winding mode of the accumulated strip.

The main disadvantage of the device is its large dimensions and material consumption. All mechanisms of the device are arranged sequentially in one line.

The disadvantage of this device is the narrow technological purpose. The individual components and parts of this device are not unified; they cannot be combined for other technological uses.

Of the known devices for unwinding or winding metal coils, the closest in technical essence is the device described in A.S. Czechoslovakia No. 175717, M.cl. 65 H 54/07, decl. 03/21/74, publ. 12/15/78.

This device for unwinding or winding metal coils contains a frame in which a double-cone hollow shaft is mounted on the rolling bearings, at one end of which a removable winding-unwinding drum is fixed rigidly kinematically connected to the clamping cylinder.

The main disadvantages of the device are its significant dimensions and material consumption due to the sequential placement of nodes. The length of the device along the axis of the hollow shaft is additionally increased due to the simultaneous placement of two gear gears of different diameters of the rotation drive of the winding-unwinding drum, as well as due to the presence of a two-bearing housing on the end of which the clamping cylinder is rigidly fixed.

Another disadvantage of this device is the lack of reliability and maintainability due to the fact that the rod of the hydraulic cylinder is structurally difficult and is involved in two movements - axial and rotational.

The third disadvantage of the device is the narrow technological capabilities due to the design of individual parts and assemblies. The device can only be used in units with axial loading of rolls during winding and unloading rolls during unwinding. The design of the drum does not allow the use of a device for winding metal products when it is necessary to clamp the end, for example, in coilers of slitting units, units for the production of conventional or flux-cored wire.

The dimensions, material consumption and manufacturing and operating costs of this device increase dramatically when using rolls with a width of more than 1000 mm and a mass of more than 8000 kg due to the cantilever placement of the roll.

The objective of the present invention is to provide a device for unwinding or winding metal coils with minimum dimensions, material consumption, manufacturing and operating costs.

The next task is to create a device that, due to the unification of its parts and assemblies and their flexible layout, will allow to unwind both narrow and wide rolls of metal products of various masses and to reel both wide and narrow metal products or several narrow ones at the same time.

The objective of the present invention is also to provide a device for unwinding or winding rolls with lateral or axial task or delivery.

The task is achieved in that in a device for unwinding or winding metal product rolls containing a bed, in which a double-cone hollow shaft is mounted on rolling bearings, at one end of which a removable winding-unwinding drum rigidly fixed kinematically connected to the clamp hydraulic cylinder, according to the invention, is removable winding the unwinding drum is made in the form of a housing with an internal sliding surface, inside of which a slider with wedge spikes and at least one row of radial holes with clamping shoes, straps, springs and pushers located in them, interacting their wedge planes with the wedge planes of the slider.

For unwinding rolls up to 300 mm wide, weighing up to 2.5 tons, when it is possible and economically feasible to manually tackle the end of a roll of metal products into the unit, a cover is installed on the free end of the bed on which a manually adjustable brake shoe is mounted, interacting with a brake pulley mounted on the free end of the hollow shaft.

If the manual task of the end of the roll is impractical for economic or safety reasons, for example, the tape has a thickness of more than 3 mm, then a rotation drive is installed on the free end of the bed, made in the form of an electric gearbox or hydraulic motor, while the free end of the hollow shaft is made in the form of a gear wheel interacting with a gear wheel of a reducer or a hydraulic motor.

In the above-mentioned structural implementations of the proposed device, the task of the roll to the unwinding position can be carried out only in the direction of the axis of the removable winding-unwinding drum.

When the roll has a lateral task at the unwinding position, the bed is made with an internal hole and is equipped with a hollow body mounted on it with the possibility of moving from the hydraulic cylinder to be placed on the hollow shaft bearings, while the rotation drive is mounted on the end face of the hollow body.

In case of lateral task of rolls with a width of more than 1000 mm and a weight of 7.5 tons to the unwinding position, the device is equipped with loading and unloading means, and the bed is made with two coaxially arranged parts with internal holes and installed in them with the possibility of moving hollow bodies from the hydraulic cylinders for placement on bearings rolling of the hollow shaft, as well as a T-shaped base for placement of loading and unloading means.

At the same time, the loading and unloading means is made in the form of a frame mounted on a T-shaped base with the possibility of moving vertically from the hydraulic cylinder with internal side rails and a trolley moving along them.

The winding-unwinding drum is made with two rows of pushers, and the slider is made with two wedge planes, while the clamping shoes are made common and removable, and the two neighboring ones are kinematically connected through earrings and a shaft with one-arm clamping levers.

When winding or unwinding large-sized rolls of metal products, the device is equipped with side cheeks with a pressure roller fixed to coaxially located parts of the bed with internal holes facing each other.

In addition, elements of a cam clutch are made on the free ends of the cases of winding-unwinding drums.

The implementation of the claimed device for unwinding or winding rolls of metal products according to the claims made it possible to reduce dimensions, material consumption, reduce the cost of manufacture and operation.

This is achieved due to the compact design and arrangement of some parts and assemblies inside others and their multifunctional use.

In addition, the implementation of most nodes unified allowed, due to their various layouts, to use the device for unwinding or winding both narrow and wide rolls of metal products of various weights, as well as several narrow metal products at the same time, for example, as a winder in a longitudinal strip cutting unit.

The implementation of the proposed device made it possible to use it with both axial and lateral task (delivery) of rolls to the unwinding position (winding).

To explain the invention, a specific embodiment of the invention is provided below with reference to the accompanying drawings, in which:

figure 1 shows a General view of a device for unwinding or winding rolls of metal products;

figure 2 is the same, view along arrow A;

figure 3 is a section bB in figure 1;

figure 4 is the same with two rows of clamping shoes;

figure 5 is the same as in figure 4, with a rotation drive of the unwinding drum;

in Fig.6 - the same as in Fig.3, with an axial and lateral task at the unwinding position of medium-sized rolls;

in Fig.7 - the same as in Fig.6, for large rolls with lateral task;

on Fig - section bb in Fig.7;

figure 9 is the same for winding medium-sized rolls with axial and lateral issuance;

figure 10 is a view along arrow G in figure 9;

figure 11 is the same for winding large rolls with lateral issuance;

on Fig - section DD in Fig.11;

on Fig - section EE in Fig;

on Fig - an embodiment of a rotation drive in the form of a hydraulic motor.

A device for unwinding or winding metal product rolls comprises a frame 1, in which a double-pin hollow shaft 3 is mounted on rolling bearings 2. A removable winding-unwinding drum 4, kinematically connected to the cylinder 5 of the roll clamp, is rigidly fixed to one end of the hollow shaft 3. The second end of the hollow shaft 3 is made in the form of a brake pulley 6 and interacts with the pads 7 of the manually adjustable brake 8, rigidly mounted on the cover 9, mounted on the free end of the frame 1.

The winding-unwinding drum 4 is made in the form of a housing 10 with an internal sliding surface, inside which a slider 11 with wedge planes 12 is mounted with the possibility of axial movement 12. In the radial holes 13 of the housing 10, pushers 14 with clamping shoes 15, springs 16 and straps are moveable 17, interacting with their wedge planes with the wedge planes of the slider 11.

The kinematic connection of the clamp cylinder 5 with the winding-unwinding drum 4 is made in the form of a bearing assembly 18 located inside the rod 19 of the clamp cylinder 5, rod 20 and nuts 21.

At the free end of the frame 1, a rotation drive is installed, made in the form of a gearbox 22 with an electric drive or a hydraulic motor 23, while the free end of the hollow shaft is made in the form of a gear wheel 24, interacting with the gear wheel 25 of the gearbox or hydraulic motor.

When the rolls are laterally fed to the unwinding position, the frame 1 is made with an internal hole 26 and is equipped with a hollow body 28 mounted for moving from the hydraulic cylinder 27 for placement on the rolling bearings 2 of the hollow shaft 3, while the gearbox 22 with an electric drive or a hydraulic motor 23 is mounted at the end hollow body 28. The hydraulic cylinder 27 is mostly located inside the hydraulic cylinder of the clamp 5 and mounted on its end cover 29.

When unwinding large rolls with a lateral task, they are placed on the unwinding position of the bed 1 with two coaxially arranged parts 30 with internal holes 26, 31 and installed in them with the possibility of moving hollow bodies 28 from the hydraulic cylinders 27 for placement of a hollow shaft 3 in each of them, and also a T-shaped base 32 for moving the loading and unloading means 33. The loading and unloading means 33 is made in the form mounted on a T-shaped base 32 with the ability to move vertically from the hydraulic cylinders and 34 with the inner side 35 of the frame rails 36, on which the trolley 37 is moved by means of the hydraulic cylinder 38.

When winding medium-sized rolls with their axial delivery, the winding-unwinding drum 4 is made with two rows of clamping shoes 39, pushers 14, springs 16 and straps 17, and the slider 40 is made with two wedge planes, while the clamping shoes 39 are made common and removable, and two neighboring ones are connected through earrings 41 and shaft 42 with one-shoulder clamping levers 43. In this case, there is a slot 44 between the ends of the clamping levers 42 and the lateral end of the clamping shoe 38 on which the shaft 41 is mounted.

When winding large rolls with lateral dispensing, the device is equipped with side cheeks 45 facing each other with a pressure roller 46 mounted on coaxially located parts 30 of the frame 1, and elements 47 of the cam clutch are made on the free ends of the housings 10 of the winding-unwinding drums 4.

A device for unwinding or winding rolls of metal works as follows.

When unwinding small-sized rolls of metal products, a roll 48 is put on by an operator on a winding-unwinding drum 4 using an electric bridge crane (not shown), then when applying pressure from the hydraulic system (not shown) to the rod cavity of the hydraulic cylinder 5, it is clamped. Next, the operator manually removes the hoop and sets the end of the metal product (strip) in the pulling rollers of the pipe welding, roll forming unit or slitting unit. The block brake 8 provides a constant tension of the strip and prevents the formation of an unacceptable loop when the units are stopped.

When unwinding medium-sized rolls with axial feed to the unwinding position, the device works in a similar way. Replaceable winding-unwinding drum 4 with two rows of clamping shoes better bases and clamps the roll before unwinding.

For unwinding thick-walled strips (more than 3 mm) with a mechanized task of the end of the roll strip, the drive turns on the winding-unwinding drum 4.

In the absence of the required production space for the unit, the device for unwinding or winding metal products is performed with the lateral task of rolls to the position of unwinding or winding. This becomes possible due to the fact that the winding-unwinding drum 4 is removed using the hydraulic cylinder 27 inside the bed 1. After the roll 48 is fed to the device axis, the winding-unwinding drum 4 is inserted inside the roll using the hydraulic cylinder 27, and is clamped using the hydraulic cylinder 5. Further technological operations are repeated. After unwinding the entire roll, the clamping shoes 15 are reduced, the winding-unwinding drum is removed inside the frame 1.

When unwinding large rolls of metal products with a lateral task on the unwinding line, roll 48 with an electric bridge crane is placed on a trolley 37, which is moved by hydraulic cylinder 38 to align the axis of the roll with the axis of winding-unwinding drums 4 in a horizontal plane.

Using the hydraulic cylinders 34, the frame 35 is rotated until the axis of the roll 48 is aligned in the vertical plane with the axis of the winding reels 4. Next, using the hydraulic cylinders 27, the unwinding reels 4 are introduced into the roll from two sides, and they are clamped using the hydraulic cylinders 5. The trolley 37 freed from the roll is lowered by the hydraulic cylinders 34 and by means of the hydraulic cylinder 38 is returned to its original position. After turning on the rotation drives of the winding-unwinding drums 4, the task of the end of the strip in the unit is performed. After the unwinding of the roll, the clamping shoes 39 of the winding-unwinding drums 4 are reduced, and the drums themselves are removed to their original position (inside the frame 1).

When the medium-sized rolls of metal products are wound in the initial position, the clamping shoes 39 are brought together, the winding-unwinding drum 4 is pulled out of the bed 1, and between the ends of the clamping levers 43 and the lateral end of the clamping shoe 39, on which the shaft 42 is mounted, there is a slot 44 into which the end is defined strip or other hardware. After supplying the working fluid to the rod cavity of the hydraulic cylinder 5, this end is clamped. Then, the rotation drive of the winding-unwinding drum is turned on and the metal products are wound on a roll.

After the winding of the roll is completed, its last turn is fixed mechanically or manually and the bundle is strapped. After feeding liquid into the piston cavity of the hydraulic cylinder 5 and the piston cavity of the hydraulic cylinder 27, the wound and strapped roll is released from the clamp and removed from the winding-unwinding drum 4 after the winding-unwinding drum 4 is removed inside the bed 1 by means of the hydraulic cylinder 27.

Further, the technological cycle is repeated.

For winding large-sized rolls of metal products with lateral dispensing in the initial position, the clamping shoes 39 are reduced, the winding-unwinding drums 4 are pulled out from the coaxially located parts 30 of the frame 1 to the end contact of the corresponding elements 47 of the cam clutch, and the slots 44 of both winding-unwinding drums 4 are located on one lines. Trolley 37 is in the extreme retracted position. The end of the metal product is sent to the slot 44 and, after the working fluid is fed into the rod cavities of the hydraulic cylinders 5, one of the rotation drives of the winding-unwinding drum 4 is turned on. After the winding of two turns, both rotation drives of the winding-unwinding drums are turned on at a working speed. The roll is being wound. Trolley 37 hydraulic cylinder 38 is moved to the axis of the winding. At the end of the winding, the spring-loaded roller 46 is pressed against the outer surface of the roll 48. The winding ends when the end of the metal product is under the pressure roller 46. The frame 35 with the help of the hydraulic cylinder 34 rises to the stop of the working surfaces of the trolley 37 to the bottom of the roll 48. The end is fixed metal products from fluffing (thin, up to 0.8 mm - with adhesive tape, thicker - with a hoop). The clamping shoes 39 are reduced, the metal product roll 48 is unclenched, the winding-unwinding drums 4 with the hydraulic cylinder 27 are retracted into the coaxially located parts 30 of the bed 1. The cycle is then repeated.

The proposed device for unwinding or winding rolls of metal products in comparison with the known allows to reduce dimensions, material consumption, reduce the cost of manufacture and operation.

In addition, the implementation of most nodes unified allowed due to their various layouts to use the device for unwinding or winding both narrow and wide rolls of metal products, as well as several narrow metal products at the same time.

The proposed device can be used with both axial and lateral task (delivery) of rolls to the unwinding position (winding).

Claims (9)

1. A device for unwinding or winding metal coils containing a bed in which a double-cone hollow shaft is mounted on rolling bearings, at one end of which a removable winding-unwinding drum is rigidly fixed kinematically connected to the clamping cylinder, characterized in that the removable winding-unwinding drum made in the form of a housing with an internal sliding surface, inside of which, with the possibility of axial movement, a slider is installed with wedge planes and at least one row of rad cial holes disposed therein clamping shoes, straps, springs and pushers interacting with their wedge planes with wedge slide planes. 2. The device according to claim 1, characterized in that a cover is mounted on the free end of the bed on which a manually adjustable brake shoe is mounted, interacting with a brake pulley mounted on the free end of the hollow shaft. 3. The device according to claim 1, characterized in that on the free end of the bed is installed a rotation drive made in the form of a gearbox with an electric drive or a hydraulic motor, while the free end of the hollow shaft is made in the form of a gear wheel interacting with the gear wheel of the gearbox or hydraulic motor. 4. The device according to claim 1, characterized in that the bed is made with an internal hole and is equipped with a hollow body mounted therein to move from the hydraulic cylinder to be placed on the bearings of the hollow shaft, while the rotation drive is mounted on the end face of the hollow body. 5. The device according to claim 1, characterized in that it is equipped with loading and unloading means, and the bed is made with two coaxially arranged parts with internal holes and installed in them with the possibility of moving hollow bodies from the hydraulic cylinders for placement on the rolling bearings of the hollow shaft, and also a T-shaped base for the placement of handling equipment. 6. The device according to any one of paragraphs.1 and 5, characterized in that the loading and unloading means is made in the form of mounted on a T-shaped base with the ability to move vertically from the hydraulic cylinder of the frame with internal side rails and a trolley moving along them. 7. The device according to claim 1, characterized in that the winding-unwinding drum is made with two rows of pushers and the slider with two wedge planes, while the clamping shoes are made common and removable, and two neighboring ones are kinematically connected to each other through the earrings and shaft with one-shoulder clamping levers. 8. The device according to any one of claims 1 and 5, characterized in that it is equipped with side cheeks with a pressure roller mounted on coaxially located parts of the frame with internal holes facing each other. 9. The device according to any one of claims 1 and 7, characterized in that on the free ends of the housings of the winding-unwinding drums, cam clutch elements are made.

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