CN210162857U

CN210162857U - Mechanical forced protection device for roll change of film blowing machine

Info

Publication number: CN210162857U
Application number: CN201920620918.4U
Authority: CN
Inventors: 李良策; 靳世科; 周晓龙
Original assignee: Rizhao Shike Machinery Equipment Manufacturing Co Ltd
Current assignee: Rizhao Shike Machinery Equipment Manufacturing Co Ltd
Priority date: 2019-04-29
Filing date: 2019-04-29
Publication date: 2020-03-20
Anticipated expiration: 2029-04-29

Abstract

The utility model relates to a mechanical forced protection device for the roll change of a film blowing machine, which comprises a fixed shaft; the fixing frame is arranged on the fixing shaft and is rotatably arranged on the fixing shaft; the pressing roller and the driving mechanism are arranged on the fixing frames on two sides of the fixing shaft, the pressing roller is rotationally connected to the fixing frames, and the driving mechanism drives the fixing frames to rotate by taking the fixing shaft as an axis, so that the pressing roller on the fixing frames is changed from a first position to a second position. This a mechanical force protection device for inflation film manufacturing machine roll change, simple structure to adopt pneumatic fly sword disconnected membrane system or air feed to twine the membrane system when operation on the coiling mechanism, can avoid the air blow to make it mistake when blowing the film deviate from the friction roller to a certain extent, influence film rolling process.

Description

Mechanical forced protection device for roll change of film blowing machine

Technical Field

The utility model relates to a inflation film manufacturing machine equipment field especially relates to a mechanical force protection device for inflation film manufacturing machine roll change.

Background

The film blowing machine is special equipment for producing plastic films, and the plastic films are required to be rolled through a rolling device from blow-out molding to material rolling.

At present, a traditional film blowing machine winding device mainly comprises a winding roller, a friction roller, a film winding; or an automatic roll changing mode is adopted, and when the roll is automatically changed, if a pneumatic fly cutter is adopted for cutting the film, the air flow easily influences the film cutting end, so that the cutting end of the film is easily separated from the friction roller; if the cutter is adopted for cutting the film and the air supply system is adopted for initial film winding, the air flow easily influences the film in the direction of the drafting roller in the roll changing process, so that the film drafting is uneven, and the film winding quality of the winding roller is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a remedy prior art not enough, provide a simple structure's a mechanical force protection device for inflation film manufacturing machine, can improve to a certain extent and twine the membrane quality, solved the difficult problem that exists among the prior art.

A mechanically forced protection device for film blowing machine change, comprising:

a fixed shaft;

the fixing frame is arranged on the fixing shaft and is rotatably arranged on the fixing shaft;

the compression roller is arranged in parallel to the fixed shaft and is rotationally connected to the fixed frame;

and the driving mechanism drives the fixed frame to rotate by taking the fixed shaft as an axis, so that the pressing roller on the fixed frame is changed from a first position to a second position.

During the implementation, install mechanical force protection device in the change roll frame, specific install in the change roll frame on be equipped with between traction roller set and the friction roller, be the first position of compression roller when the compression roller on the mount and the friction roller butt in the change roll frame, the compression roller is kept away from the second position that is the compression roller when the friction roller sets up.

When the film blowing machine is used, the cutter mechanism on the roll changing mechanism can cut off the film between the previous rolling roller and the next rolling roller before the previous rolling roller finishes film winding and the next rolling roller winds the film, so that the next rolling roller smoothly winds the film, and when the rolling roller initially winds the film, the broken film end is easy to separate from the friction roller, even the traction roller, so that the working process of the whole film blowing machine is influenced; particularly, in the process of initially winding the film by adopting a pneumatic conveying mode, the film is very easy to fall off, and the mechanical protection device can reduce the tensile force of the film discharging end to the film breaking end to a certain extent, so that the film is prevented from falling off from the friction roller.

To the automatic roll change device of inflation film manufacturing machine, be equipped with on the device along the rotatory, be used for joint wind-up roll joint seat of friction roller roll surface, its theory of use as follows: when the film winding machine is used, the friction roller of the roll changing rack drives the winding roller to wind a film, the compression roller is located at a first position, the compression roller can act as a traction roller to a certain extent, the film can be contacted with the friction roller in a large area as much as possible, the driving effect of the friction roller on a film is increased, when the winding roller winds the film, the driving mechanism works to drive the fixing frame to rotate by taking the fixing shaft as an axis, the compression roller at the upper end of the fixing frame is far away from the friction roller, and the compression roller is changed from the first position abutted against the friction roller to a second position far away from the friction roller; then the clamping seat rotates to a position for receiving a winding roller from a standby position along the roller surface of the friction roller through a space between the press roller and the friction roller, then a driving mechanism of the mechanical forced protection device works to enable the press roller to be restored to the first position from the second position, and then cutting, film breaking and film winding are carried out.

Preferably, still including locating the wind-proof board of compression roller top, for better preventing wind, the both sides lower part of preventing wind the board rotate respectively through the head rod connect in the roller both ends of compression roller, prevent wind the board below and be equipped with the gag lever post that is used for supporting the wind-proof board, the gag lever post with prevent wind the board butt setting, just the gag lever post set up highly be higher than the height that sets up of compression roller, the gag lever post is used for preventing to prevent that the free end of preventing wind the board from turning angle downwards too big. At the moment, the gap between the compression roller and the wind-proof plate is as small as possible, and the influence of air wind on the film on the traction roller through the gap between the compression roller and the wind-proof plate can be well prevented.

Preferably, rotate respectively on the gag lever post of preventing wind board both sides and connect an L type gag lever post, L type gag lever post with can form between the gag lever post and hold prevent wind the board and be in the space that the compression roller changed to the certain angle in second position by first position. So set up, can carry out spacing to a certain extent to preventing wind the board, avoid preventing wind the board along with the compression roller position transform in-process, overturn friction roller one side, influence twines the membrane process.

Preferably, the fixing frame comprises two connecting rods which are oppositely arranged and rotatably arranged on the fixing shaft, and two ends of the compression roller are respectively and rotatably connected with the upper end of each connecting rod.

Preferably, the driving mechanism comprises two cylinders, and the output end of each cylinder is fixedly connected with the lower end of each connecting rod.

Preferably, a roll change device for inflation film manufacturing machine, is including locating the friction roller on the roll change device, the compression roller is on a parallel with the friction roller sets up, be the first position of compression roller when compression roller butt friction roller sets up, be the second position of compression roller when the friction roller setting is kept away from to the compression roller.

The utility model adopts the above structure, the advantage that has is: this a mechanical force protection device for inflation film manufacturing machine roll change, simple structure to adopting pneumatic fly sword disconnected membrane system or air feed to twine the membrane system operation on the coiling mechanism, can avoid the film to deviate from the friction roller to a certain extent, plays certain guard action to it, is favorable to the continuous use of coiling mechanism.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the arrangement of FIG. 1 mounted on a reel changer;

fig. 3 is a partial sectional structural view of the L-shaped stopper rod of fig. 1.

Detailed Description

In order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.

In addition, in the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

As shown in fig. 1-3, in the present embodiment, the mechanical forced protection device for film blowing machine roll change includes a fixed shaft 1; the fixing frame 2 is arranged on the fixing shaft 1, and the fixing frame 2 is rotatably arranged on the fixing shaft 1; the compression roller 3 is arranged parallel to the fixed shaft 1, and the compression roller 3 is rotationally connected to the fixed frame 2; and the driving mechanism 4 drives the fixed frame 2 to rotate by taking the fixed shaft 1 as an axis, so that the pressing roller 3 on the fixed frame 2 is changed from a first position to a second position.

In implementation, the mechanical forced protection device is installed on the change-over stand 5, specifically, between the traction roller set 6 and the friction roller 7 arranged on the change-over stand 5, and the installation steps are as follows, but not limited to the following installation forms: firstly, a fixed frame 2 is rotatably arranged on a fixed shaft 1; then, a compression roller 3 is arranged at the upper end of the fixed frame 1, is parallel to the fixed shaft 1 and is arranged in a rotating way with the fixed frame 2; and then, the fixed shaft 1 is fixedly arranged on the roll changing rack 5 and is arranged in parallel with a traction roller of the traction roller group 6, the compression roller 3 at the upper end of the fixed frame 2 is in rotary butt joint with a friction roller 7 on the roll changing rack 5, the first position of the compression roller 3 is at the moment, and the lower end of the fixed frame is connected with the output end of the driving mechanism 4.

When the film blowing machine is used, when the film winding of the previous winding roller is finished and before the film winding of the next winding roller is carried out, the cutter mechanism arranged on the roll changing device can cut off the film between the previous winding roller and the next winding roller so as to enable the next winding roller to smoothly wind the film, and when the film winding roller is initially wound with the film, the film breaking end is easily separated from the friction roller 7, even the traction roller, so that the working process of the whole film blowing machine is influenced; especially, in the process of initially winding the film by adopting a pneumatic conveying mode, the film is very easy to fall off due to the fact that reverse blowing is carried out in the film running direction, and the mechanical protection device can avoid the film from falling off to a certain extent.

To be equipped with along the rotatory automatic change package device of the inflation film manufacturing machine who is used for joint wind-up roll of friction roller roll surface, the use as follows: when the film winding machine is used, the friction roller 7 of the roll changing rack 5 drives the winding roller to wind a film, the compression roller 3 is located at a first position, the compression roller 3 can act as a traction roller to a certain extent, and when the winding roller winds the film, the driving mechanism 4 works to drive the fixing frame 2 to rotate by taking the fixing shaft 1 as an axis, so that the compression roller 3 at the upper end of the fixing frame 2 is far away from the friction roller 7 and is changed from the first position which is abutted against the friction roller 7 to a second position which is far away from the friction roller 7; then a clamping mechanism for cutting or clamping the winding roller rotates to a position for receiving the winding roller from a standby position along the surface of the friction roller 7 through the space between the pressing roller 3 and the friction roller 7, then a driving mechanism 4 of a mechanical forced protection device works to enable the pressing roller 3 to recover to a first position from a second position, and then cutting, breaking and winding are carried out.

It will be appreciated that a windbreak plate 8 is also included above the pressure roller 3. When the air conveying mode is adopted for winding the film, the film on the traction roller set is prevented from being influenced by air wind. And the wind-proof plate 8 can be fixed on the roll-changing frame 5.

Alternatively, the wind-proof plate 8 may be mounted in such a manner that, for better wind-proof performance, the lower portions of both sides of the wind-proof plate 8 are rotatably connected to both ends of the roll shaft of the press roll by a first connecting rod 9, and a limiting rod 10 for supporting the wind-proof plate 8 is disposed below the wind-proof plate 8. At this time, the gap between the press roll 3 and the wind-proof plate 8 is reduced, and the influence of the air wind on the film on the drawing roll through the gap between the press roll and the wind-proof plate can be well prevented. And does not affect the traction of the film by the traction roller set, nor the shifting of the pressure roller 3 between the first position and the second position.

Understandably, an L-shaped limiting rod 11 is respectively rotatably connected to the limiting rods 10 at two sides of the windproof plate 8, and a space capable of accommodating the windproof plate 8 can be formed between the L-shaped limiting rod 11 and the limiting rods 10. So set up, can carry out spacing to a certain extent to prevent wind board 8, avoid preventing wind board 8 along with the 3 position transform in-process of compression roller, overturn 7 one sides of friction roller, influence twines the membrane process.

Understandably, the fixing frame 2 comprises two connecting rods 21 which are oppositely arranged and rotatably arranged on the fixing shaft 1, and two ends of the compression roller 3 are respectively and rotatably connected with the upper end of each connecting rod 21.

Understandably, the driving mechanism 4 comprises two cylinders, and the output end of each cylinder is fixedly connected with the lower end of each connecting rod.

Understandably, the roll changing device for the film blowing machine can be directly provided with the mechanical forced protection device on the existing automatic roll changing device, and during installation, the compression roller 3 is arranged in parallel with the friction roller 7 on the roll changing device, and is a first position of the compression roller when the compression roller 3 is abutted against the friction roller 7 and is a second position of the compression roller when the compression roller is far away from the friction roller.

The above-mentioned embodiments can not be regarded as the limitation to the protection scope of the present invention, and to those skilled in the art, it is right that any alternative improvement or transformation made by the embodiments of the present invention all fall within the protection scope of the present invention. The parts of the present invention not described in detail are the known techniques of those skilled in the art.

Claims

1. A mechanically forced protection device for film blowing machine reel change, characterized by comprising:

a fixed shaft;

2. The mechanical forced protection device for the film blowing machine roll change is characterized by further comprising a wind-proof plate arranged above the compression roller, the lower portions of the two sides of the wind-proof plate are respectively connected to the two ends of the roller shaft of the compression roller in a rotating mode through a first connecting rod, a limiting rod used for supporting the wind-proof plate is arranged below the wind-proof plate, the wind-proof plate is arranged in a butting mode with the limiting rod, and the setting height of the limiting rod is higher than that of the compression roller.

3. The mechanical forced protection device for the film blowing machine roll change is characterized in that an L-shaped limiting rod is rotatably connected to the limiting rods on two sides of the windproof plate respectively, and a space which can accommodate the windproof plate to change a certain angle from the first position to the second position of the compression roller can be formed between the L-shaped limiting rod and the limiting rods.

4. The mechanical forced protection device for the roll change of the film blowing machine according to claim 1, wherein the fixing frame comprises two connecting rods which are oppositely arranged and rotatably arranged on the fixing shaft, and two ends of the pressing roller are respectively and rotatably connected with the upper end of each connecting rod.

5. The mechanical forced protection device for the roll change of the film blowing machine according to claim 1, wherein the driving mechanism comprises two air cylinders, and the output end of each air cylinder is fixedly connected with the lower end of each connecting rod.

6. A change of lap device for inflation film manufacturing machine, characterized by comprising:

the friction roller is arranged on the roll changing device;

the mechanical forced protection device for the film blowing machine roll change of any one of claims 1 to 5, wherein a press roll of the mechanical forced protection device is parallel to the friction roll and is arranged on the roll change device, the press roll is in a first position when abutting against the friction roll and is in a second position when being far away from the friction roll.