TWM679278U - Dewinding mechanism of the drum - Google Patents

Abstract

A dewinding mechanism for a drum is provided, which can support the drum to perform dewinding operations. The dewinding mechanism has a rotating shaft support at the top of the support frame on both sides of the base, and includes two rotating shaft sleeves respectively fitted on the two rotating shafts of the drum, so that the two rotating shafts of the drum are pivoted in the two rotating shaft support parts of the base. An electric braking device is arranged in the base, which can drive the braking component to apply force to the side plate of the drum in an electric manner to brake it, so that the drum can stop quickly, effectively and safely, while preventing the flexible material in the drum from coming loose from the drum.

Description

Unwinding mechanism of the drum

This invention relates to an unwinding mechanism for a drum wound with a long, flexible material such as a steel cable, and more particularly to an unwinding mechanism that can improve unwinding efficiency and operational safety.

Currently, for long, flexible materials such as steel cables, to facilitate subsequent processing, they are wound in a drum. The drum containing the flexible material is then moved to an unwinding mechanism near the input end of the processing equipment. The unwinding mechanism, in conjunction with the operating speed of the processing equipment, rotates the drum to release the flexible material into the processing equipment for processing.

The known structure of the unwinding mechanism includes a base with a hinge support on each of the two sides of the base. A hinge bearing is mounted on each end of the drum and placed within this hinge support, allowing the drum to rotate within the base. During operation, if the drum of the unwinding mechanism needs to be stopped, because there is no braking component in the base, the operator must manually press the edge of the drum with a stick or similar object to apply a lever principle, thereby slowing the drum down to a stop.

However, during the use of the aforementioned unwinding mechanism, if the rotational inertia of the drum is too large, it will significantly prolong the stopping time for the operator to stop the drum with a stick. This causes excessive flexible materials such as steel cables to loosen from the drum, requiring additional manpower for rewinding and reorganization. Furthermore, the loose steel cables and other flexible materials may injure nearby operators. On the other hand, the use of wooden sticks or other rods by operators... During the braking process of the unwinding mechanism, the rod may break or slip due to incorrect force application and angle by the operator, potentially injuring nearby workers. At the same time, the operator may also lose balance due to careless operation, leading to falls and injuries. Based on the requirements of operational safety, there is a need for further improvement of the existing unwinding mechanism.

The purpose of this invention is to provide a drum unwinding mechanism that solves the technical problem of poor manual braking effect in current unwinding equipment for drums of flexible materials such as steel cables.

To achieve the aforementioned objective, this invention provides a winding mechanism for a scroll, capable of unwinding a scroll wound with a flexible object. Each of the scroll's two side plates has a pivot portion. The winding mechanism includes: a base comprising a body, two supports disposed on opposite sides of the base, and two pivot supports respectively disposed on the top of the two supports. The scroll is placed within the two pivot supports via the two pivot portions and can rotate within the base; two pivot sleeves respectively fitted onto the two pivot portions of the scroll and respectively assembled onto the two pivot supports of the base; and... An electric braking device is disposed in the base. The electric braking device includes an electric drive, a braking element, and an electrical control box electrically connected to the electric drive. The electric drive is disposed below the drum. The braking element is connected to the electric drive. The braking element can be driven by the electric drive to apply a force to a side plate of the drum for braking.

The unwinding mechanism of the aforementioned drum mainly utilizes two rotating shaft sleeves respectively assembled at the rotating shafts at both ends of the drum along the axial direction, and placed in the rotating shaft support parts at the top of the two support frames of the base, so that the drum can rotate and unwind in the base. On the other hand, when unwinding stops, the electric control mechanical braking action of the electric braking device is used to make the drum stop quickly, effectively and safely, while preventing the flexible material in the drum from loosening from the drum.

In the electric drive of the unwinding mechanism of this novel drum, the electrical control box can be a wired control component and electrically connected to a remote controller via a wire. Alternatively, the electrical control box can be a wireless remote control component and controlled by a wireless remote controller, so that the electric braking device can be remotely controlled to ensure the safety of the operator.

In the unwinding mechanism of this novel drum, each of the two rotating shaft sleeve assemblies includes at least one spacer sleeve and at least one bearing. The spacer sleeves are respectively sleeved on the outer side of the rotating shaft portion and located between the side plate and the adjacent rotating shaft support portion, in order to maintain the distance between the side plate of the drum and the adjacent support frame, ensuring that the drum will not undergo axial lateral displacement during rotation and deviate from the braking range of the electric braking device. The bearing is installed on the outer side of the rotating shaft portion of the drum, so that the two rotating shaft portions of the drum are respectively connected to the bearing assembly in the rotating shaft support portion and can rotate smoothly. When the spacer bushings are multiple sets of different lengths or diameters, appropriate spacer bushings can be replaced according to the different widths of the drum to ensure that the drum remains in the position where the electric braking device can brake during rotation. When the bearings are multiple components of different sizes, appropriate bearings can also be replaced according to the rotating shaft of the drum with different widths.

The electric drive in the unwinding mechanism of this novel drum can also be equipped with a position setter, enabling it to set the travel stroke of the brake to accommodate drums with different outer diameters. This ensures that the drum's side plates are subjected to appropriate braking force from the driven brake.

The unwinding mechanism of this novel drum may further include two hinged covers. The two hinged covers are respectively mounted on the top of the two supports of the base and can cover the outside of the rotating shaft support. After the spacer sleeve and bearing are installed on the rotating shaft of the drum, the hinged covers cover the outside of the rotating shaft support to prevent foreign objects from being drawn into the rotating shaft during the drum rotation process, thus ensuring safety.

Figure 1 illustrates an embodiment of the unwinding mechanism 2 of the novel drum 1, which can support a drum 1 with a flexible object wound around it to perform unwinding operations. The drum 1 includes two adjacent side plates 10 spaced apart and a winding shaft passing through the two side plates 10. The two axial ends of the winding shaft protrude from the outer surfaces of the two side plates 10 and are respectively forming a rotating shaft portion 11. The flexible object 100 can be a flexible object such as a steel cable, and the flexible object 100 is wound on the winding shaft between the two side plates 10. The unwinding mechanism 2 includes a base 20, two rotating shaft sleeves 30, and an electric braking device 40.

As shown in Figures 1 and 3, the base 20 is capable of supporting the drum 1. In this embodiment, the base 20 includes a body 21, two supports 22 disposed on opposite sides of the body 21, and two pivot supports 23 respectively disposed on the top of the two supports 22. The base 20 has a movable space between the body 21 and the two supports 22. The pivot supports 23 are U-shaped. The drum 1 is placed in the two pivot supports 23 from top to bottom with the two pivot supports 11, so that the drum 1 can rotate in the base 20.

As shown in Figures 1 and 2, each of the two rotating shaft sleeve assemblies 30 includes at least one spacer sleeve 31 and at least one bearing 32. The spacer sleeves 31 are respectively sleeved on the outer side of the rotating shaft portion 11 and located between the side plate 10 and the adjacent rotating shaft support portion 23, in order to maintain the distance between the side plate 10 of the drum 1 and its adjacent support frame 22. When the number of spacer sleeves 31 is multiple and they are kits of different lengths or diameters, appropriate spacer sleeves 31 can be replaced according to different sizes of drums 1 to ensure that the drum 1 is maintained in the position where the electric braking device 40 can be braked during rotation. The bearing 32 is installed on the outer side of the rotating shaft part 11 of the drum 1, so that the two rotating shaft parts 11 of the drum 1 are respectively connected with the bearing 32 and assembled in the rotating shaft support part 23 and can rotate smoothly. Similarly, when the number of the bearing 32 is multiple and they are components of different sizes, the appropriate bearing 32 can be replaced according to the rotating shaft part 11 of the drum 1 with different width dimensions.

As shown in Figures 1 and 3, the electric braking device 40 includes an electric drive 41, a brake element 42, and an electrical control box 43. The electric drive 41 is installed in the base 20 and located below the drum 1. The brake element 42 is connected to the electric drive 41 and can be driven by the electric drive 41 to apply a force to the side plate 10 of the drum 1 for braking. The electrical control box 43 is located on the base 20 and electrically connected to the electric drive 41, and can control the operation of the electric drive 41.

As shown in Figures 1 and 3, in the electric braking device 40, the braking element 42 can be a braking element including a friction baffle 421, which applies frictional resistance to the side plate 10 of the drum 1 to achieve braking. The electric drive 41 can be a lifting drive assembly.

As shown in Figures 1 and 3, the electric drive 41 may further be equipped with a position setter 411, which can set the travel of the brake 42 to accommodate drums 1 with different outer diameters. This ensures that the side plate 10 of the drum 1 can be subjected to appropriate braking force from the driven brake 42.

As shown in Figure 1, the control box 43 may be equipped with switches or buttons for close-range control of the electric braking device 40. Alternatively, the control box 43 may be controlled by a remote controller 44, wherein the remote controller 44 is a wired control component and is electrically connected to the control box 43 via wires; or the remote controller 44 may be a wireless remote control component and can control the control box 43 wirelessly, so that the electric braking device 40 can remotely control the control box 43 to perform actions on the braking element 42.

As shown in Figures 1 to 4, the novel unwinding mechanism 2 may further include two hinged covers 24. The two hinged covers 24 are respectively mounted on the top of the two supports 22 of the base 20 and can cover the outside of the rotating shaft support 23. After the spacer sleeve 31 and bearing 32 are installed on the rotating shaft 11 of the drum 1, the hinged covers 24 cover the outside of the rotating shaft support 23 to prevent foreign objects from being drawn into the rotating shaft 11 during the rotation of the drum 1, thus ensuring safety.

As shown in Figures 1 and 3, regarding the use of the unwinding mechanism 2 of the novel drum 1, a spacer sleeve 31 and a bearing 32 are installed on the outer side of the rotating shaft portion 11 at both axial ends of the drum 1 to be unwound. The drum 1 is then moved to the base 20 of the unwinding mechanism 2 by a crane. The two rotating shaft portions 11 of the drum 1 are respectively placed in the rotating shaft support portion 23 with the bearings 32 attached. The spacer sleeve 31, which is fitted on the outer side of the rotating shaft portion 11, is located between the side plate 10 of the drum 1 and the rotating shaft support portion 23, so that the drum 1 is in a predetermined position. Furthermore, based on the outer diameter of the drum 1, the position setter 411 of the electric drive 41 is used to set the travel of the brake 42, ensuring that the side plate 10 of the drum 1 can be subjected to appropriate braking force from the driven brake 42, while ensuring that the friction plate 421 of the brake 42 does not excessively squeeze the drum 1, causing equipment damage. Then, the hinged covers 24 on the top of the two supports 22 of the base 20 are respectively placed over the outer side of the rotating shaft support 23.

As shown in Figure 1, with the unwinding mechanism 2 releasing the braking state of the drum 1, the flexible material 100 wound on the drum 1 is connected to the processing equipment for processing. During the rotation of the drum 1, as shown in Figures 1 and 5, when it is necessary to urgently stop the rotation of the drum 1 for unwinding, the operator stands in a safe position and uses the remote controller 44 or wireless remote control to remotely control the electrical control box 43 of the electric braking device 40 to cause the electric drive 41 to drive the brake 42 to apply braking force to the side plate 10 of the drum 1, so that the drum 1 stops rotating immediately and can prevent too much flexible material from loosening from the drum 1. After the situation is resolved, the operator can stand in a safe position and use the remote controller 44 or wireless remote control to remotely control the control box 43 of the electric braking device 40 to cause the electric drive 41 to drive the brake 42 to release the brake on the side plate 10 of the drum 1, so that the drum 1 can continue to rotate and unwind.

1: Drum 10: Side plate 11: Shaft 100: Flexible material 2: Unwinding mechanism 20: Base 21: Seat 22: Support frame 23: Shaft support 24: Flip-up cover 30: Shaft sleeve assembly 31: Spacer bushing 32: Bearing 40: Electric braking device 41: Electric drive 411: Position setter 42: Braking component 421: Friction baffle 43: Electrical control box 44: Remote controller

Figure 1 is a side plan view of one embodiment of the unwinding mechanism of the novel drum. Figure 2 is a partially enlarged view of the embodiment of the unwinding mechanism of the drum shown in Figure 1. Figure 3 is a plan view from another angle of the embodiment of the unwinding mechanism of the drum shown in Figure 1 with the flip-up cover in the open state. Figure 4 is a partially enlarged view of the embodiment of the unwinding mechanism of the drum shown in Figure 3 with the flip-up cover closed. Figure 5 is a plan view of the embodiment of the unwinding mechanism of the drum shown in Figure 1 in the state of braking of the drum by an electric braking device.

1: Roller

10: Side panels

100: Flexible object

11: Rotating Shaft

2: Unwinding mechanism

20: Base

21: Seat

22: Support frame

23: Spindle support section

24: Flip-up cover

30: Rotary shaft sleeve assembly

31: Interval Liner

32: Bearing

40: Electric braking device

41: Electric drive

411: Position Setter

42: Brake components

421: Friction Brake

43: Electrical Control Box

44: Remote Controller

Claims (7)

A dewinding mechanism for a scroll, capable of unwinding a scroll wound with a flexible object, wherein each of the scroll's two side plates has a pivot portion; the dewinding mechanism includes: a base, comprising a body, two supports disposed on opposite sides of the base, and two pivot supports respectively disposed on the top of the two supports, the scroll being placed in the two pivot supports by the two pivot portions and capable of rotating within the base; two pivot sleeves, respectively fitted onto the two pivot portions of the scroll and respectively assembled onto the two pivot supports of the base; and An electric braking device is disposed in the base. The electric braking device includes an electric drive, a braking element, and an electrical control box electrically connected to the electric drive. The electric drive is disposed below the drum. The braking element is connected to the electric drive. The braking element can be driven by the electric drive to apply a force to a side plate of the drum for braking. The unwinding mechanism of the drum as described in claim 1, wherein the electrical control box is controlled by a remote controller. The unwinding mechanism of the drum as described in claim 1 or 2, wherein the electric drive is further provided with a position setter that enables it to set the travel of the brake. The unwinding mechanism of the drum as described in claim 3, wherein the braking element is a braking element including a friction baffle, which applies frictional resistance to the side plate of the drum to brake it. As described in claim 1 or 2, the unwinding mechanism of the drum includes at least one spacer sleeve and at least one bearing. The spacer sleeves are respectively sleeved on the outer side of the rotating shaft portion and located between the side plate and the adjacent rotating shaft support portion to maintain the distance between the side plate of the drum and the adjacent support frame. The bearing is installed on the outer side of the rotating shaft portion of the drum, so that the two rotating shaft portions of the drum are respectively connected to the bearing assembly and rotate in the rotating shaft support portion. The unwinding mechanism of the drum as described in claim 5, wherein the number of the spacer bushings and the number of the bearings are both multiple and are set according to the size of the drum. The unwinding mechanism of the drum as described in claim 1 or 2, wherein the unwinding mechanism of the drum further includes two hinged covers, which are respectively mounted on the top of the two supports of the base and can cover the outside of the rotating shaft support.