CN216579196U

CN216579196U - Stretching device for winding film

Info

Publication number: CN216579196U
Application number: CN202123170818.2U
Authority: CN
Inventors: 李桂荣
Original assignee: Shanghai Guiyue Packaging Material Co ltd
Current assignee: Shanghai Guiyue Packaging Material Co ltd
Priority date: 2021-12-16
Filing date: 2021-12-16
Publication date: 2022-05-24
Anticipated expiration: 2031-12-16

Abstract

The utility model belongs to the technical field of winding film production equipment, in particular to a stretching device for a winding film, which comprises a fixing component, a lifting component and a pressing and holding component, wherein the fixing component comprises a bottom plate, four corners of the upper surface of the bottom plate are fixedly provided with vertical plates, a guide roller is rotatably arranged between the vertical plates at one end, a stretching roller is rotatably arranged between the vertical plates at the other end, the lifting component is in sliding and clamping connection with the vertical plates, the lifting component comprises a lifting plate, four corners of the lifting plate are fixedly provided with air cylinders, the pressing and holding component is fixedly arranged at the middle position of the lower surface of the lifting plate, the resistance of the winding film can be conveniently adjusted by adjusting the balance weight water amount in the guide roller and the balance weight roller, the winding film can be further pressed and held by a compression roller in the pressing and can be conveniently buffered when being subjected to higher pressure by a spring, and the lifting component, the counterweight roller and the pressing and holding assembly are convenient to lift, a winding film can conveniently penetrate through the film winding device, and the film penetrating is convenient.

Description

Stretching device for winding film

Technical Field

The utility model belongs to the technical field of winding film production equipment, and particularly relates to a stretching device for a winding film.

Background

The winding film, also called stretch film, thermal contraction film, in China, PVC is the first to use PVC as the base material, DOA is the plasticizer and also plays a self-adhesive role to produce PVC winding film, because of environmental protection problem, high cost, large specific gravity relative to PE, small unit packaging area, poor stretchability and other reasons, in China, PE stretching film is gradually eliminated when beginning to produce PE stretching film, the PE stretching film uses EVA as the self-adhesive material, but the cost is high, and has taste, later development uses PIB and VLDPE as the self-adhesive material, the base material mainly uses LLDPE, including C4, C6, C8 and metallocene PE.

When producing the winding membrane, need carry out tensile production, but present stretching device has the problem that is not convenient for adjusting tensile resistance when using, and is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a stretching device for a winding film, which has the advantage of conveniently adjusting the resistance of the winding film during stretching and solves the problem that the existing device is inconvenient to use.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: a stretching device for a winding film comprises a fixing component, a lifting component and a pressing component;

the fixed assembly comprises a bottom plate, vertical plates are fixedly arranged at four corners of the upper surface of the bottom plate, a guide roller is rotatably arranged between the vertical plates at one end, a stretching roller is rotatably arranged between the vertical plates at the other end, and the lifting assembly is slidably clamped on the vertical plates;

the lifting assembly comprises a lifting plate, air cylinders are fixedly mounted at four corners of the lifting plate, the extending ends of the air cylinders are fixedly connected with the upper surface of the vertical plate, and the pressing and holding assembly is fixedly mounted in the middle of the lower surface of the lifting plate.

Preferably, the lower surface of lifter plate is close to the equal fixed mounting in one end both sides of guide roll has the riser, just lower extreme between the riser rotates installs the counter weight roller.

By adopting the scheme, the counterweight roller drives the winding film to rotate when the winding film is stretched, and the counterweight roller applies resistance to the winding film, so that the winding film is convenient to stretch.

Preferably, the guide roll with the inside of counter weight roller has all seted up the cavity, just the guide roll with one side fixed mounting of counter weight roller has the valve, the valve with the cavity is linked together, the inside injection of cavity has counter weight water.

Through adopting above-mentioned scheme, through the guide roll with the inside counter weight water that adds of counter weight roller can not only increase the guide roll with the dead weight of counter weight roller is also convenient for right the guide roll with the weight of counter weight roller is adjusted, and the convenience is adjusted the winding membrane to the different grade type, facilitates the use.

Preferably, a driving motor is fixedly mounted on one side of the vertical plate, an output end of the driving motor is fixedly connected with the stretching roller, sliding grooves are vertically formed in two sides of the vertical plate, sliding strips are fixedly mounted at four corners of the lower surface of the lifting plate, and the sliding strips are slidably clamped inside the sliding grooves.

By adopting the scheme, when the cylinder is lifted, the sliding strip moves in the sliding groove, so that the guidance and stability of the lifting plate during lifting are improved, the position of the lifting plate is convenient to adjust, a wound film can conveniently penetrate through the winding film winding device, and the film can be conveniently penetrated.

Preferably, the pressing and holding assembly comprises a fixing frame, the fixing frame is fixedly installed on the lower surface of the lifting plate, the fixing frame is located between the guide roller and the stretching roller, the lifting rod is uniformly sleeved on the fixing frame, the lifting frame is fixedly installed at the lower end of the lifting rod, and the pressing roller is installed at the lower end between the lifting frames in a rotating mode.

By adopting the above scheme, through the compression roller for the winding membrane is pressed and is held by the compression roller, further improves the resistance of winding membrane when tensile, improves tensile effect, and when tensile, through the lifter plate is convenient for when the pulling force is great, the lifter rises, avoids winding membrane to damage.

Preferably, the fixing frame and the lifting frame are both of U-shaped structures, the lifting rod is of a T-shaped structure, and the upper end of the lifting rod is inserted into the fixing frame.

By adopting the scheme, the lifting rod is convenient to install and convenient to lift through the fixing frame and the lifting frame which are of the U-shaped structure.

Preferably, the upper end of the lifting rod is sleeved with a spring, the upper end of the spring is fixedly connected with the upper end of the lifting rod, and the lower end of the spring is fixedly connected with the upper surface of the fixing frame.

By adopting the scheme, through the spring, when the winding film is right when the compression roller applies larger upward thrust, the spring stretches, and then the damage of the winding film caused by larger tension is avoided.

(III) advantageous effects

Compared with the prior art, the utility model provides a stretching device for a winding film, which has the following beneficial effects:

according to the utility model, the guide roller and the counterweight roller are installed, and the counterweight water amount in the guide roller and the counterweight roller is adjusted, so that the resistance on the wound film is conveniently adjusted, the stretching effect is further conveniently adjusted, the wound film is further pressed and held by the pressing roller in the pressing and holding assembly, the wound film is conveniently buffered when being subjected to larger pressure by the spring, the counterweight roller and the pressing and holding assembly are conveniently lifted by the lifting assembly, the wound film can conveniently pass through the film threading device, the film threading is convenient, and the operation is convenient.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the overall structure of the present invention in use;

FIG. 3 is a front cross-sectional view of the present invention;

FIG. 4 is a schematic view of a part of the lifting mechanism of the present invention;

in the figure:

1. a fixing assembly; 11. a base plate; 12. a vertical plate; 13. a guide roller; 14. a stretching roller; 15. a vertical plate; 16. a counterweight roller; 17. a cavity; 18. a valve; 19. weighing water; 110. a drive motor; 111. a chute;

2. a lifting assembly; 21. a lifting plate; 22. a cylinder; 23. a slide bar;

3. a pressing component; 31. a fixed mount; 32. a lifting rod; 33. a lifting frame; 34. a compression roller; 35. a spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

A stretching device for winding a film comprises a fixing component 1, a lifting component 2 and a pressing and holding component 3;

the fixing assembly 1 comprises a bottom plate 11, vertical plates 12 are fixedly arranged at four corners of the upper surface of the bottom plate 11, a guide roller 13 is rotatably arranged between the vertical plates 12 at one end, a stretching roller 14 is rotatably arranged between the vertical plates 12 at the other end, and the lifting assembly 2 is slidably clamped on the vertical plates 12;

the lifting assembly 2 comprises a lifting plate 21, air cylinders 22 are fixedly mounted at four corners of the lifting plate 21, the extending ends of the air cylinders 22 are fixedly connected with the upper surface of the vertical plate 12, and the pressing assembly 3 is fixedly mounted at the middle position of the lower surface of the lifting plate 21.

Both sides of one end of the lower surface of the lifting plate 21 close to the guide rollers 13 are fixedly provided with vertical plates 15, and the lower ends between the vertical plates 15 are rotatably provided with counterweight rollers 16.

Cavities 17 are formed in the guide roller 13 and the counterweight roller 16, a valve 18 is fixedly mounted on one side of the guide roller 13 and one side of the counterweight roller 16, the valve 18 is communicated with the cavities 17, and counterweight water 19 is injected into the cavities 17.

A driving motor 110 is fixedly mounted on one side of the vertical plate 12, an output end of the driving motor 110 is fixedly connected with the stretching roller 14, sliding grooves 111 are vertically formed in two sides of the vertical plate 12, four corners of the lower surface of the lifting plate 21 are fixedly provided with sliding strips 23, and the sliding strips 23 are slidably clamped inside the sliding grooves 111.

Referring to fig. 1-4, when in use, the cylinder 22 is opened to enable the cylinder 22 to ascend, and further drive the vertical plate 15 and the pressing and holding component 3 to ascend, so that a gap exists between the counterweight roller 16 and the pressing and holding component 3 and between the guide roller 13 and the stretching roller 14 in the horizontal direction, and further a winding film can conveniently pass through the gap, so that the winding film can conveniently pass through the film threading device, after the film threading, the cylinder 22 is closed to enable the lifting plate 21 to descend, and when the lifting plate 21 descends, the sliding strip 23 descends along the sliding chute 111, so that the stability of the lifting plate 21 in descending is improved, and when the lifting plate 21 descends, the counterweight roller 16 and the pressing and holding component 3 are enabled to press and hold the winding film, so that the winding film sequentially passes through the guide roller 13, the counterweight roller 16, the pressing and the stretching roller 3, and the stretching roller 14, according to the requirement of stretching, pouring counterweight water 19 into the inside of guide roll 13 and counterweight roll 16 through valve 18, and then make the resistance that guide roll 13 and counterweight roll 16 received when rotating increase, open driving motor 110, make driving motor 110 drive tensile roller 14 and rotate, when tensile roller 14 stretches the winding membrane, make the winding membrane pass through guide roll 13, counterweight roll 16 and pressure hold subassembly 3 and move, and when the winding membrane removed, drive guide roll 13 and counterweight roll 16 and rotate, guide roll 13 and counterweight roll 16 exert the resistance to the winding membrane, and then be convenient for stretch the winding membrane, and pressure holds subassembly 3 and further exert the resistance to the winding membrane, improve tensile effect, it is convenient to stretch the winding membrane.

Example two

And a mode of pressing and buffering the winding film is added on the basis of the first embodiment.

The pressing and holding assembly 3 comprises a fixed frame 31, the fixed frame 31 is fixedly installed on the lower surface of the lifting plate 21, the fixed frame 31 is located between the guide roller 13 and the stretching roller 14, the lifting rod 32 is uniformly sleeved on the fixed frame 31, the lifting frame 33 is fixedly installed at the lower end of the lifting rod 32, and the pressing roller 34 is installed at the lower end between the lifting frames 33 in a rotating mode.

The fixing frame 31 and the lifting frame 33 are both of U-shaped structures, the lifting rod 32 is of a T-shaped structure, and the upper end of the lifting rod 32 is inserted into the fixing frame 31.

The upper end of the lifting rod 32 is sleeved with a spring 35, the upper end of the spring 35 is fixedly connected with the upper end of the lifting rod 32, and the lower end of the spring 35 is fixedly connected with the upper surface of the fixing frame 31.

Referring to fig. 1-4, during the use, when the winding membrane moves through the compression roller 34 on the pressing holding component 3, the compression roller 34 applies downward pressure to the winding membrane, and then be convenient for stretch the winding membrane, and when the pulling force that the winding membrane received is great, make the winding membrane apply ascending thrust to the compression roller 34, and then make the crane 33 promote the lifter 32 and move up on the mount 31, make the spring 35 stretch, the compression roller 34 of being convenient for rises, conveniently receive when the winding membrane receives great pulling force, cushion, convenient to use.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A stretching apparatus for wrapping a film, characterized in that: comprises a fixing component (1), a lifting component (2) and a pressing component (3);

the fixing assembly (1) comprises a bottom plate (11), vertical plates (12) are fixedly mounted at four corners of the upper surface of the bottom plate (11), a guide roller (13) is rotatably mounted between the vertical plates (12) at one end, a stretching roller (14) is rotatably mounted between the vertical plates (12) at the other end, and the lifting assembly (2) is slidably clamped on the vertical plates (12);

the lifting assembly (2) comprises a lifting plate (21), air cylinders (22) are fixedly mounted at four corners of the lifting plate (21), the extending ends of the air cylinders (22) are fixedly connected with the upper surface of the vertical plate (12), and the pressing and holding assembly (3) is fixedly mounted in the middle of the lower surface of the lifting plate (21).

2. A stretching apparatus for winding a film as set forth in claim 1, wherein: the lower surface of lifter plate (21) is close to the equal fixed mounting in one end both sides of guide roll (13) has riser (15), just lower extreme between riser (15) is rotated and is installed counter weight roller (16).

3. A stretching apparatus for wrapping a film as set forth in claim 2, wherein: the guide roll (13) with cavity (17) have all been seted up to the inside of counter weight roller (16), just guide roll (13) with one side fixed mounting of counter weight roller (16) has valve (18), valve (18) with cavity (17) are linked together, counter weight water (19) have been injected into to the inside of cavity (17).

4. A stretching apparatus for winding a film as set forth in claim 1, wherein: one side fixed mounting of riser (12) has driving motor (110), just driving motor's (110) output with stretch roller (14) looks fixed connection, just spout (111) have vertically been seted up to the both sides of riser (12), the equal fixed mounting in lower surface four corners of lifter plate (21) has draw runner (23), draw runner (23) slip joint is in the inside of spout (111).

5. A stretching apparatus for winding a film as set forth in claim 1, wherein: the pressing and holding assembly (3) comprises a fixing frame (31), the fixing frame (31) is fixedly installed on the lower surface of the lifting plate (21), the fixing frame (31) is located between the guide roller (13) and the stretching roller (14), a lifting rod (32) is uniformly sleeved on the fixing frame (31), a lifting frame (33) is fixedly installed at the lower end of the lifting rod (32), and a pressing roller (34) is installed at the lower end between the lifting frame (33) in a rotating mode.

6. The stretching device for winding a film as claimed in claim 5, wherein: the fixing frame (31) and the lifting frame (33) are both of U-shaped structures, the lifting rod (32) is of a T-shaped structure, and the upper end of the lifting rod (32) is inserted into the fixing frame (31).

7. The stretching device for wrapping a film as set forth in claim 6, wherein: the upper end of lifter (32) has cup jointed spring (35), just the upper end of spring (35) with the upper end looks fixed connection of lifter (32), the lower extreme of spring (35) with the upper surface looks fixed connection of mount (31).