CN220299874U

CN220299874U - Plastic film blowing machine

Info

Publication number: CN220299874U
Application number: CN202321531196.8U
Authority: CN
Inventors: 朱锦标; 李鼎红; 周金; 杜书保
Original assignee: Jinyun County Tekang Medicinal Plastic Products Co ltd
Current assignee: Jinyun County Tekang Medicinal Plastic Products Co ltd
Priority date: 2023-06-15
Filing date: 2023-06-15
Publication date: 2024-01-05
Anticipated expiration: 2033-06-15

Abstract

The utility model discloses a plastic film blowing machine, which comprises a film blowing machine body, a film rolling mechanism and a winding drum, wherein the film rolling mechanism comprises a frame; the winding roll is rotationally connected to the frame, and the winding drum is arranged on the winding roll; the driving piece is used for driving the winding roller to rotate; the abutting piece comprises a connecting plate arranged on the frame, the connecting plate is connected with a U-shaped moving plate in a sliding manner, an abutting roller is connected onto the moving plate in a rotating manner, a compression spring is fixedly connected between the moving plate and the connecting plate, and the abutting roller is always abutted to the winding drum or a film roll wound on the outer side of the winding drum. The film of outer lane can not appear not hard up when guaranteeing to roll up the membrane when cutting off to the membrane to this application.

Description

Plastic film blowing machine

Technical Field

The utility model relates to the technical field of plastic processing, in particular to a plastic film blowing machine.

Background

The plastic film blowing machine is a device for heating and melting plastic particles and then blowing the plastic particles into a film. The existing plastic film blowing machine is characterized in that plastic particles are heated and melted and then fed into an extruder, melted plastic is extruded into a film through the extruder, then the film is cooled through a cooling device, and then the processed film is fixed on a film winding mechanism through a foam stabilizing frame, a lambdoidal frame and a traction roller for winding.

When the existing film winding mechanism is used for winding films, a winding drum is generally installed on a winding roller, then a film is fixed on the winding drum, and then a driving motor is started to drive the winding roller to rotate, so that the winding drum installed on the outer side of the winding roller is driven to rotate for winding films. When the film roll reaches a certain amount, the film roll needs to be cut, and then the winding drum is replaced to carry out new film rolling work.

However, in the film rolling process, the film is always subjected to tensile force, so that the film roll can be compact, but after the film is cut off, the tensile force of the film at the periphery of the film roll is suddenly lost, so that the film at the periphery of the film roll is loosened, and the problem that the film roll is misplaced and offset or even wrinkles occur during transportation possibly occurs, so that the overall quality of the film roll is affected.

Disclosure of Invention

In order to solve at least one technical problem mentioned in the background art, the utility model aims to provide a plastic film blowing machine, which can ensure that a film at the periphery of a film roll does not loose when the film roll is cut.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a plastic film blowing machine comprises a film blowing machine body, a film winding mechanism and a winding drum, wherein the film winding mechanism comprises a frame;

the winding roll is rotationally connected to the frame, and the winding drum is arranged on the winding roll;

the driving piece is used for driving the winding roller to rotate;

the abutting piece comprises a connecting plate arranged on the frame, the connecting plate is connected with a U-shaped moving plate in a sliding manner, an abutting roller is connected onto the moving plate in a rotating manner, a compression spring is fixedly connected between the moving plate and the connecting plate, and the abutting roller is always abutted to the winding drum or a film roll wound on the outer side of the winding drum.

Optionally, the moving direction of the moving plate is along the radial direction of the wind-up roller.

Optionally, the number of the abutting rollers is two.

Optionally, the device further comprises a regulating and controlling component, wherein the regulating and controlling component comprises a supporting frame installed on the connecting plate, a rotating rod rotationally connected to the supporting frame, a handle fixedly connected with the shaft end of the rotating rod and a steel wire rope, one end of the steel wire rope is fixedly connected to the moving plate, and the other end of the steel wire rope is fixedly connected to the rotating rod.

Optionally, a torsion spring is arranged between the rotating rod and the supporting frame.

Optionally, a locking disc is fixedly connected to one side of the supporting frame, close to the handle, a locking hole is formed in the locking disc, and a locking pin is connected to the rotating rod in a sliding manner.

Optionally, a plurality of limit rings are fixedly connected on the connecting plate, a plurality of limit posts are fixedly connected on the moving plate, and each limit post is correspondingly and slidably connected with one limit ring.

Optionally, the device further comprises a pre-tightening mechanism, wherein the pre-tightening mechanism comprises two screw rod sliding table modules arranged on the frame and a pre-tightening roller rotatably connected between the two screw rod sliding table modules.

Compared with the prior art, the utility model has the beneficial effects that:

1. when the film roll is cut off, the abutting roller always abuts against the outermost film of the film roll under the action of the elasticity of the compression spring, so that after the film roll is cut off, the force of the abutting roller on the outermost film can prevent the film on the outer ring of the film roll from loosening due to the fact that the film is pulled in. In addition, in the film winding process, the abutting roller is abutted against the outermost layer of the film roll at any time, so that the film roll can be tightly attached between any two adjacent films, and the overall quality of the film roll is ensured.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a partial structure of the present utility model;

fig. 3 is an enlarged schematic view of fig. 2 at a.

In the figure: 1. a film blowing machine body; 11. an extruder; 12. a cooling air ring; 13. a propeller strut; 2. a film rolling mechanism; 21. a frame; 22. a wind-up roll; 23. a driving member; 24. a tightening member; 241. a connecting plate; 242. a moving plate; 243. a pressing roller; 244. a compression spring; 3. a regulatory component; 31. a support frame; 32. a rotating rod; 33. a handle; 34. a wire rope; 4. a torsion spring; 51. a locking plate; 511. a locking hole; 52. a locking pin; 61. a limit ring; 62. a limit column; 7. a pre-tightening mechanism; 71. a screw rod sliding table module; 72. and (5) pre-tightening the roller.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the plastic film blowing machine provided in this embodiment includes a film blowing machine body 1 and a film winding mechanism 2. Referring to fig. 1, the film blowing machine body 1 also has a plurality of components, according to the flow of making films from plastic particles, the plastic particles are heated and melted and then enter the extruder 11, the melted plastic is extruded into films through the extruder, then the films are cooled through the cooling device 12, then the processed films are rolled up through the bubble stabilizing frame, the propeller 13, the traction roller and the film rolling mechanism 2, the film rolls are cut after a certain amount of film rolls are achieved, then new film rolling work is carried out by replacing the rolls, but the film rolling process is carried out, the films are always under tension, so the film rolls are compact, but after the film rolls are cut off, the films outside the film rolls lose tension suddenly, so the films become loose, and the quality of the film rolls is affected.

The film winding mechanism 2 of the embodiment of the application comprises a frame 21, a winding roller 22 is rotatably connected to the frame 21, a winding drum is installed on the winding roller, and a driving piece 23 for driving the winding roller 22 to rotate is arranged on the winding roller 22. The frame 21 is further provided with a tightening member 24, the tightening member 24 includes a connection plate 241 mounted on the frame 21, a U-shaped movable plate 242 is slidably connected to the connection plate 241, a tightening roller 243 is rotatably connected to the movable plate 242, the tightening roller 243 always abuts against the outermost film of the film winding drum or film roll, and a compression spring 244 is fixed between the connection plate 241 and the movable plate 242.

The following further describes with specific application scenario, when the film roll reaches the specified amount, the film needs to be cut off and replaced by a new roll to perform the next film rolling work, at this time, under the action of the compression spring 244, the moving plate 242 pushes the abutting roller 243 to abut against the outermost film of the film roll all the time and tightly to extrude and restrict the outermost film edge, even if the film is cut off, the film on the outer side of the film roll is not easy to loose, and further, the overall film rolling quality of the film roll is ensured to be better, at this time, the film roll which has been rolled up can be taken down only by bonding the head end of the film roll through the adhesive tape, and the next film rolling work is performed.

Therefore, the abutting roller 243 is tightly abutted against the outermost film of the film roll under the action of the elastic force of the compression spring 244, so that the force of the abutting roller 243 to the outermost film can prevent the film at the outer periphery of the film roll from loosening due to the loss of traction after the film roll is cut off. In addition, in the film winding process, the abutting roller 243 is abutted against the outermost layer of the film roll from time to time, so that the film roll can be tightly attached between any two adjacent films, and the overall quality of the film roll is ensured.

As a specific implementation of the embodiment of the present application, after the moving plate 242 is installed, the moving direction of the moving plate 242 is along the radial direction of the wind-up roll 22.

In combination with a specific use scene, the moving direction of the moving plate 242 is designed along the radial direction of the wind-up roller 22, so that the force of the compression spring 244 on the moving plate 242 can be ensured to be along the radial direction of the wind-up roller 22, the maximum abutting force of the abutting roller 243 when abutting the wind-up roller 22 or the film roll outside the wind-up roller 22 is ensured, and the abutting stability of the film roll when cutting is ensured.

Referring to fig. 2, as a specific implementation of the embodiment of the present application, there are two abutment rollers 243 rotatably connected to the moving plate 242.

By using the two pressing rollers 243 in combination with a specific use scenario, the contact area with the film can be increased, and the pressing stability of the film on the outermost layer of the film roll can be further improved.

Referring to fig. 2, as a specific implementation manner of the embodiment of the present application, the control assembly 3 further includes a control assembly 3, where the control assembly 3 includes a supporting frame 31 installed on a connecting plate 241, a rotating rod 32 rotatably connected to the supporting frame, a handle 33 fixedly connected to an end of the rotating rod 32, and a steel wire rope 34, and one end of the steel wire rope 34 is fixedly connected to a moving plate 242, and the other end is fixedly connected to the rotating rod 32.

In combination with a specific use scene, after the film roll is cut off, in order to ensure that the film on the outer ring of the film roll cannot be loosened, the abutting roller 243 still abuts against the outermost layer of the film roll, so that after the film roll is cut off, the cut-off position is well adhered by using the adhesive tape, the overall compactness of the film roll is ensured to be convenient to carry, and then the abutting roller 243 and the moving plate 242 are required to retract away from the film roll so as to be convenient for replacing a new winding drum to carry out winding work of a new round of film.

Further, the handle 33 is turned, the steel wire rope 34 is wound by the control rotating rod 32, and the moving plate 242 is pulled, so that the moving plate 242 is far away from the film roll, and then the film roll can be taken down, so that the operation is very simple.

Referring to fig. 2 and 3, as a specific implementation of the embodiment of the present application, a torsion spring 4 is provided between the rotating lever 32 and the supporting frame 31.

In combination with a specific use situation, when the diameter of the film roll gradually increases, the moving plate 242 gradually approaches the connecting plate 241, and at this time, the torsion spring 4 controls the rotating rod 32 to rotate, so as to tighten the steel wire rope 34, thus avoiding the steel wire rope 34 from winding between the moving plate 242 and the connecting plate 241 and affecting the film rolling operation of the film roll.

Referring to fig. 3, as a specific implementation of the embodiment of the present application, a locking plate 51 is fixedly connected to a side of the supporting frame 31 near the handle 33, a locking hole 511 is formed in the locking plate 51, and a locking pin 52 is slidably connected to the rotating rod.

In combination with a specific use scenario, when the amount of the film rolled by one film roll reaches a specified value, the film roll needs to be taken down, and then a film rolling work of a new film roll is performed, so that a new winding drum needs to be placed. At this time, the moving plate 242 is controlled to move towards the connecting plate 241 by the regulating and controlling component 3 to be far away from the coiled film; the locking pin 52 is then inserted into one of the locking holes 511 of the locking disc 51, ensuring that the position of the moving plate 242 is temporarily fixed, so as to facilitate the removal of the film roll and the placement of a new roll. When the new roll is set, the locking pin 52 is pulled out from the locking disc 51, and then the moving plate 242 is further moved with the abutment roller 243 by the elastic force of the compression spring 244 until the abutment roller 243 abuts on the new roll.

Referring to fig. 2, as a specific implementation manner of the embodiment of the present application, a plurality of limit rings 61 are fixedly connected to the connection plate 241, and a plurality of limit posts 62 are fixedly connected to the moving plate 242, where each limit post 62 is correspondingly slidably connected to one limit ring 61.

The linear constraint between the connecting plate 241 and the moving plate 242 can be increased by utilizing the cooperation of the limiting columns 62 and the limiting rings 61 in combination with specific use scenes, and the supporting strength of the moving plate 242 and the abutting roller 243 can be improved, so that the abutting stability of the film is ensured.

Referring to fig. 1, as a specific implementation of the embodiment of the present application, the pre-tightening mechanism 7 is further included, and the pre-tightening mechanism 7 includes two screw slide modules 71 mounted on the frame 21, and a pre-tightening roller 72 rotatably connected between the two screw slide modules 71.

In combination with a specific use scene, after the film is wound, the whole film can be loose, if the film is directly wound, the problem of film winding wrinkles is easily caused, and therefore, the position of the pre-tightening roller 72 is adjusted through the two screw rod sliding table modules 71, the film is further tightened until the whole film is tensioned, and then the winding work is performed, so that the quality of the film roll can be improved.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A plastic film blowing machine, which comprises a film blowing machine body (1), a film winding mechanism (2) and a winding drum, and is characterized in that the film winding mechanism (2) comprises a frame (21);

the winding roll (22) is rotatably connected to the frame (21), and the winding drum is arranged on the winding roll;

the driving piece (23) is used for driving the wind-up roll (22) to rotate;

the abutting piece (24) comprises a connecting plate (241) arranged on the frame (21), the connecting plate (241) is slidably connected with a U-shaped moving plate (242), an abutting roller (243) is rotatably connected on the moving plate (242), a compression spring (244) is fixedly connected between the moving plate (242) and the connecting plate (241), and the abutting roller (243) is always abutted against the winding drum or a film roll wound on the outer side of the winding drum.

2. A plastic film blowing machine according to claim 1, characterized in that the direction of movement of the moving plate (242) is in the radial direction of the wind-up roll (22).

3. A plastic film blowing machine according to claim 1, characterized in that there are two abutment rollers (243).

4. The plastic film blowing machine according to claim 1, further comprising a regulating and controlling component (3), wherein the regulating and controlling component (3) comprises a supporting frame (31) installed on a connecting plate (241), a rotating rod (32) rotatably connected to the supporting frame, a handle (33) fixedly connected with the shaft end of the rotating rod (32) and a steel wire rope (34), one end of the steel wire rope (34) is fixedly connected to a moving plate (242), and the other end of the steel wire rope is fixedly connected to the rotating rod (32).

5. A plastic film blowing machine according to claim 4, characterized in that a torsion spring (4) is arranged between the turning bar (32) and the supporting frame (31).

6. The plastic film blowing machine according to claim 5, wherein a locking plate (51) is fixedly connected to one side of the supporting frame (31) close to the handle (33), a locking hole (511) is formed in the locking plate (51), and a locking pin (52) is connected to the rotating rod in a sliding manner.

7. A plastic film blowing machine according to claim 1, wherein a plurality of limit rings (61) are fixedly connected to the connecting plate (241), a plurality of limit posts (62) are fixedly connected to the moving plate (242), and each limit post (62) is correspondingly and slidably connected to one limit ring (61).

8. A plastic film blowing machine according to claim 1, further comprising a pre-tightening mechanism (7), the pre-tightening mechanism (7) comprising two screw slide modules (71) mounted on the frame (21), and a pre-tightening roller (72) rotatably connected between the two screw slide modules (71).