CN216233161U

CN216233161U - Anti-flying film mechanism capable of preventing coil spring from being damaged

Info

Publication number: CN216233161U
Application number: CN202121327319.7U
Authority: CN
Inventors: 纪萍; 顾宵虎
Original assignee: Zhiyun Jiangsu Robot Co ltd
Current assignee: Zhiyun Jiangsu Robot Co ltd
Priority date: 2021-06-16
Filing date: 2021-06-16
Publication date: 2022-04-08
Anticipated expiration: 2031-06-16

Abstract

The utility model discloses a film flying prevention mechanism capable of preventing a coil spring from being damaged, which comprises a rotary ring, a winding film, a packaged piece and a conveying line, wherein the packaged piece is placed on the conveying line; the damping film roll comprises a shaft fixed on a rotating ring, a synchronizing wheel, a ratchet wheel, a pawl seat, a coil spring and a pressing plate are sequentially sleeved on the shaft from inside to outside, the synchronizing wheel is fixedly connected with the ratchet wheel, the pawl seat is hinged with the pawl, the outside of the pawl is pressed by a spring and is always contacted with the ratchet wheel, the coil spring is placed in the coil spring seat and is fixed in the coil spring seat by the pressing plate, and the pressing plate is fixed with the pawl seat through a screw. The utility model not only can realize the function of preventing the film from flying, but also can prevent the pawl seat from rotating reversely when the film winding mechanism rotates reversely due to the reverse installation of the wound film through the ratchet wheel and the pawl, so that the coil spring can not rotate reversely, thereby protecting the coil spring from being damaged.

Description

Anti-flying film mechanism capable of preventing coil spring from being damaged

Technical Field

The utility model relates to the technical field of winding machines, in particular to a film flying prevention mechanism capable of preventing a coil spring from being damaged.

Background

The traditional packing mode is that a damping film roll with a coil spring is arranged on a rotary ring, a winding film is arranged on the damping film roll, a packed piece is placed on a conveying line, the rotary ring rotates in the direction shown in figure 1 to wind the winding film on the packed piece, when the rotary ring rotates from figure 1 to figure 2, the distance between the winding film and the packed piece is lengthened, the length of a film L between the damping film roll and the packed piece is lengthened, and the coil spring is in a force storage stage; when the rotary ring rotates from the position shown in figure 2 to the position shown in figure 1, the distance between the winding film and the packed piece is shortened, the film L is already released by the winding film (if the film L cannot be withdrawn under the action of external force, the section of the film becomes loose, the phenomenon of film flying occurs), at the moment, the whole film rolling mechanism does not bear the pulling force of the film any more, the coil spring recovers the original state, the winding film is withdrawn, and the phenomenon of film flying is prevented

When will twine the membrane and install traditional damping film that takes the coil spring and roll up, because the coil spring can only hold the reason of power to one direction, twine the membrane and only have a kind of installation direction, if will twine the membrane dress and turn over, can destroy the coil spring in the use to whole set of device can not normal use.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to overcoming the disadvantages and drawbacks of the prior art and providing an anti-flying film mechanism that prevents damage to a coil spring.

In order to achieve the purpose, the utility model adopts the technical scheme that: the utility model provides an ability prevents flying film mechanism that coil spring damaged, includes swivel, winding membrane, by packing and transfer chain, put on the transfer chain by packing, its innovation point lies in: the damping film roll and the damping film roll are both arranged on the rotating ring and are in transmission connection by adopting a synchronous belt and a synchronous wheel; the damping film coil comprises a shaft fixed on a swivel, a synchronizing wheel, a ratchet wheel, a pawl seat, a coil spring and a pressing plate are sequentially sleeved on the shaft from inside to outside, the synchronizing wheel is fixedly connected with the ratchet wheel and can rotate freely around the shaft, the pawl seat is hinged with the pawl and can rotate freely around the shaft, the outside of the pawl is pressed by a spring and is always in contact with the ratchet wheel, the coil spring is placed in the coil spring seat and is fixed in the coil spring seat by the pressing plate, and the pressing plate is fixed with the pawl seat through a screw and can rotate freely around the shaft.

Further, the spring is installed on the pawl seat through a spring seat.

After adopting the structure, the utility model has the beneficial effects that:

the utility model has simple structure and convenient use; the film-flying-preventing device not only can realize the film-flying-preventing function, but also can prevent the pawl seat from reversely rotating due to the ratchet wheel and the pawl when the film winding mechanism reversely rotates due to the reverse installation of the wound film through the ratchet wheel and the pawl, so that the coil spring cannot reversely rotate, and the coil spring is protected from being damaged.

Drawings

FIG. 1 is a schematic diagram of a conventional packing method;

FIG. 2 is a second schematic diagram of a conventional packing method;

FIG. 3 is a schematic structural diagram of the present invention;

FIG. 4 is a second schematic structural diagram of the present invention;

FIG. 5 is a schematic view of the damping film roll of the present invention;

FIG. 6 is a rear view of a roll of damping film in accordance with the present invention.

Description of reference numerals:

1-rotation ring, 2-winding film, 3-packaged piece, 4-conveying line, 5-undamped film roll, 6-damping film roll, 61 shaft, 62 synchronizing wheel, 63 ratchet wheel, 64 pawl seat, 65-winding spring seat, 66 coil spring, 67 pressing plate, 68 pawl, 69 spring, 610 spring seat and 7 synchronous belt.

Detailed Description

The utility model will be further described with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 3-6, the flying-film prevention mechanism capable of preventing the coil spring from being damaged comprises a rotary ring 1, a winding film 2, a packaged piece 3 and a conveying line 4, wherein the packaged piece 3 is placed on the conveying line 4, the flying-film prevention mechanism further comprises an undamped film roll 5 and a damping film roll 6, the undamped film roll and the damping film roll are both arranged on the rotary ring 1, and the undamped film roll and the damping film roll are in transmission connection through a synchronous belt 7 and a synchronous wheel; the damping film coil 6 comprises a shaft 61 fixed on the swivel 1, a synchronizing wheel 62, a ratchet wheel 63, a pawl seat 64, a coil spring seat 65, a coil spring 66 and a pressing plate 67 are sequentially sleeved on the shaft 61 from inside to outside, the synchronizing wheel 62 and the ratchet wheel 63 are fixedly connected and can freely rotate around the shaft, the pawl seat 64 is hinged with a pawl 68 which can freely rotate around the shaft, the outside of the pawl 68 is pressed by a spring 69 and is always in contact with the ratchet wheel 63, the coil spring 66 is placed in the coil spring seat 65 and is fixed in the coil spring seat 65 by the pressing plate 67, and the pressing plate 65 is fixed with the pawl seat 64 through screws and can freely rotate around the shaft. Specifically, the original damping film roll is split into the undamped film roll 5 and the damping film roll 6, the winding film 2 is installed on the undamped film roll 5, the damping film roll 6 is additionally provided with the ratchet wheel 63 and the pawl 64 on the original structure, and the damping film roll 6 is connected with the undamped film roll 5 through the synchronous belt 7, as shown in fig. 3;

the damping film roll 6 has a structure as shown in fig. 5, a shaft 61 of the damping film roll is fixed on a swivel 1, a synchronizing wheel 62 is installed at the rightmost side, the synchronizing wheel 62 is fixed with a ratchet wheel 63 and can freely rotate around the shaft 61, a pawl 68 is fixed on a pawl seat 64 and can freely rotate around the shaft 61, a coil spring 66 is placed in a coil spring seat 65 at the left side of the pawl seat 64 and is fixed in the coil spring seat 65 by a pressing plate 67, the pressing plate 67 is fixed with the pawl seat 64 through a screw and can freely rotate around the shaft 61, and the pawl 68 is pressed by a spring 69 and is always in contact with the ratchet wheel 63.

In operation, the rotating ring 1 rotates in the direction shown in fig. 3 to wind the winding film 2 around the packaged object 3, when the rotating ring rotates from fig. 3 to fig. 4, the distance between the winding film 2 and the packaged object 3 is increased, the film L between the packaging objects 3 of the non-damping film roll 5 is increased, in the unwinding process, the non-damping film roll 5 rotates around the axis thereof, the synchronous wheel in the damping film roll 6 is driven to rotate together through the synchronous belt 7, because the synchronous wheel 62 is fixed with the ratchet wheel 63, the ratchet wheel 63 is pressed against the pawl 68, the pawl seat 64, the coil spring seat 65 and the pressing plate 67 are driven to rotate together, the coil spring 66 is in the force accumulation stage, when the rotating ring 1 rotates from the position shown in fig. 4, the distance between the winding film 2 and the packaged object 3 is increased, and the film L is already unwound by the winding film, at this time, the whole film roll mechanism is no longer subjected to the pulling force of the damping film, the coil spring 66 in the damping film roll will return to the original state, thereby withdrawing the surplus winding film and realizing the flying-prevention film function of the conventional mechanism.

In addition, when the winding film is reversely arranged, the rotation direction of the undamped film roll is opposite in the running process, the synchronous wheel in the undamped film roll is driven to rotate in the opposite direction through the synchronous belt, the ratchet wheel and the pawl do not act due to the existence of the ratchet wheel 63 and the pawl 68, the pawl seat does not rotate, and therefore the coil spring is protected from being damaged.

In this embodiment, spring 69 is mounted on pawl seat 64 by spring seat 610.

The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides a can prevent flying film mechanism of wind spring damage, includes swivel, winding membrane, by packing and transfer chain, put on the transfer chain by packing, its characterized in that: the damping film roll and the damping film roll are both arranged on the rotating ring and are in transmission connection by adopting a synchronous belt and a synchronous wheel; the damping film coil comprises a shaft fixed on a swivel, a synchronizing wheel, a ratchet wheel, a pawl seat, a coil spring and a pressing plate are sequentially sleeved on the shaft from inside to outside, the synchronizing wheel is fixedly connected with the ratchet wheel and can rotate freely around the shaft, the pawl seat is hinged with the pawl and can rotate freely around the shaft, the outside of the pawl is pressed by a spring and is always in contact with the ratchet wheel, the coil spring is placed in the coil spring seat and is fixed in the coil spring seat by the pressing plate, and the pressing plate is fixed with the pawl seat through a screw and can rotate freely around the shaft.

2. The flying diaphragm prevention mechanism of claim 1, wherein: the spring is installed on the pawl seat through a spring seat.