CN218429940U

CN218429940U - Film controllable longitudinal stretching ratio transmission device

Info

Publication number: CN218429940U
Application number: CN202222303592.7U
Authority: CN
Inventors: 殷曦; 董泉坤
Original assignee: Jiangsu Huaqiang Dyeing & Printing Machinery Co ltd
Current assignee: Jiangsu Huaqiang Dyeing & Printing Machinery Co ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2023-02-03
Anticipated expiration: 2032-08-31

Abstract

The utility model discloses a film controllable longitudinal stretching multiplying power transmission device, which relates to the field of film processing equipment and comprises a frame, wherein two groups of stretching devices are arranged on the frame, and a driven roller group is arranged between the two stretching devices; the stretching device comprises a speed reducer and three driving roll shafts which are rotatably arranged on the frame and are arranged in a delta shape, gears are arranged at the end parts of the three driving roll shafts and are sequentially meshed and driven along the stretching direction of the film, and one of the driving roll shafts is in transmission connection with the speed reducer; the driven roller shaft group comprises a plurality of upper driven roller shafts and a plurality of lower driven roller shafts which are rotatably arranged on the rack, the upper driven roller shafts and the lower driven roller shafts are arranged in a staggered mode, and the film is in a continuous S shape and sequentially winds through the upper driven roller shafts and the lower driven roller shafts. The utility model discloses can realize the tensile in-process of film and to its arbitrary regulation of tensile multiplying power, also ensure the thickness degree of consistency of the tensile in-process of film simultaneously.

Description

Film controllable longitudinal stretching ratio transmission device

Technical Field

The utility model relates to a film processing equipment field especially relates to a controllable vertical stretch ratio transmission of film.

Background

The preparation of special films is generally made by heating and stretching thicker films, the stretching of the films in the prior art is generally realized by winding and rotating the films by using rubber rollers, but the stretching ratio of the films cannot be adjusted by the existing stretching device, and when the thicker special films are produced, stretching spots are easily generated on the surfaces, the thickness uniform distribution degree cannot be guaranteed, and the quality problem is caused.

For example, the chinese patent No. 202220416281.9, "polarizing film stretching device", has a structure including: the box body is internally provided with a containing cavity which is used for containing a preset solution; the rotating shaft is movably connected with the box body, and at least part of the rotating shaft is arranged in the accommodating cavity; the rotating shaft is fixedly connected with the box body, and at least part of the rotating shaft is arranged in the accommodating cavity; the driving structure is in transmission connection with the first roller and the second roller and is used for driving the first roller and the second roller to rotate; the adjusting structure is fixedly connected to the rotating shaft of the first roller and has a first state and a second state; in a first state, the adjusting structure controls the first roller and the second roller to be tightly attached; in the second state, the adjusting structure controls a gap to be formed between the first roller and the second roller. The problem that the membrane skidded in the production process has been solved to this structure, but only adopts the structure of two running rollers, only can realize the drawing of special film, and can't adjust tensile multiplying power in good time according to the film of different thickness, and the thickness equipartition degree of film also can't be ensured to this kind of structure simultaneously, and this kind of problem belongs to the common problem that faces in a lot of special film production processes, also is the problem that this application awaits the utmost point and waits to solve.

Disclosure of Invention

An object of the utility model is to overcome the not enough of above-mentioned technique, provide a controllable vertical tensile multiplying power transmission of film, can realize the tensile in-process of film and to its arbitrary regulation of tensile multiplying power, also ensured the thickness degree of consistency of the tensile in-process of film simultaneously.

In order to realize the purpose of the utility model, the utility model adopts the technical scheme that:

a film controllable longitudinal stretching ratio transmission device comprises a rack and is characterized in that two groups of stretching devices are arranged on the rack, and a driven roller shaft group is arranged between the two stretching devices; the stretching device comprises a speed reducer and three driving roll shafts which are rotatably arranged on the rack and are arranged in a delta shape, gears are arranged at the end parts of the three driving roll shafts and are sequentially meshed and driven along the stretching direction of the film, and one of the driving roll shafts is in transmission connection with the speed reducer; the driven roller shaft group comprises a plurality of upper driven roller shafts and a plurality of lower driven roller shafts which are rotatably installed on the rack, the upper driven roller shafts and the lower driven roller shafts are arranged in a staggered mode, and the film is in a continuous S shape and sequentially winds through the upper driven roller shafts and the lower driven roller shafts.

The utility model discloses a further improvement lies in, is located the film exit end stretching device's speed reducer rotational speed is higher than and is located the film entrance point stretching device's speed reducer rotational speed, entrance point film speed are slow, and exit end film is fast to realize the drawing of film.

The utility model discloses a further improvement lies in, is located the film entrance point stretching device's front end is provided with a plurality of feeding roller shafts of rotation installation in the frame, and the film is around getting into stretching device through the feeding roller shaft, and the feeding roller shaft plays the transition effect.

The utility model discloses a further improvement lies in, feeding roller axle, last driven roller axle and lower driven roller axle are the steel roller, and the steel roller is the surface promptly for smooth and steel roller.

The utility model discloses a further improvement lies in, the drive roll axle is the rubber roll, and the rubber roll is the roller of rubber material promptly on the surface, and the film is grabbed to can be fine, prevents to skid.

The utility model discloses a further improvement lies in, the output of speed reducer is connected with speed sensor in addition, can the real-time supervision rotational speed to provide the staff, the staff can be based on this rotational speed of adjusting the speed reducer, and then control film's tensile multiplying power.

The beneficial effects of the utility model are that:

the utility model can firmly hold the film and prevent slipping by arranging two groups of stretching devices and utilizing the driving roll shaft of the delta-shaped structure, and can effectively control the stretching multiplying power of the film by controlling the rotating speed of the speed reducers of the two groups of stretching devices, the rotating speed of the speed reducer of the outlet end stretching device is faster than that of the inlet end stretching device, and the stretching multiplying power of the film is larger; meanwhile, by arranging the driven roller shaft group, the thickness uniform distribution degree of the film in the film stretching process can be guaranteed in the continuous S-shaped conveying process, so that the thickness of the discharged film is uniform.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a side view of the present invention.

In the figure: the device comprises a frame 1, a stretching device 2, a driven roller shaft group 3, a speed reducer 4, a driving roller shaft 5, a gear 6, an upper driven roller shaft 7, a lower driven roller shaft 8, a feeding roller shaft 9 and a rotating speed sensor 10.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

As shown in fig. 1-2, a film controllable longitudinal stretching ratio transmission device comprises a frame 1, two groups of stretching devices 2 are arranged on the frame 1, and a driven roller group 3 is arranged between the two stretching devices 2; the stretching device 2 comprises a speed reducer 4 and three driving roll shafts 5 which are rotatably arranged on the rack 1 and are arranged in a delta shape, gears 6 are arranged at the end parts of the three driving roll shafts 5 and are sequentially meshed and driven along the stretching direction of the film, one of the driving roll shafts 5 is in transmission connection with the speed reducer 4, transmission gears are arranged at the end parts of the driving roll shafts 5 and the output end of the speed reducer 4, the two transmission gears are connected through a transmission chain to realize transmission, and the speed reducer 4 is in transmission connection with an engine; the driven roller shaft group 3 comprises a plurality of upper driven roller shafts 7 and a plurality of lower driven roller shafts 8 which are rotatably arranged on the frame 1, the upper driven roller shafts 7 and the lower driven roller shafts 8 are arranged in a staggered mode, and the film is in a continuous S shape and sequentially winds through the upper driven roller shafts 7 and the lower driven roller shafts 8.

The rotating speed of the speed reducer 4 of the stretching device 2 at the outlet end of the film is higher than that of the speed reducer 4 of the stretching device 2 at the inlet end of the film, the speed of the film at the inlet end is low, and the speed of the film at the outlet end is high, so that the film can be stretched.

The front end of the stretching device 2 positioned at the inlet end of the film is provided with a plurality of feeding roller shafts 9 which are rotatably arranged on the frame 1, the film enters the stretching device 2 through the feeding roller shafts 9, and the feeding roller shafts 9 play a transition role.

The feeding roll shaft 9, the upper driven roll shaft 7 and the lower driven roll shaft 8 are all steel rolls, and the steel rolls are smooth and steel roll shafts on the surfaces.

The driving roll shaft 5 is a rubber roll, the rubber roll is a roll shaft with the surface made of rubber, and a film can be well grasped to prevent slipping.

The output of speed reducer 4 is connected with revolution speed sensor 10 in addition, can real-time supervision rotational speed to provide the staff, the staff can be based on this rotational speed of adjusting speed reducer 4, and then the stretch ratio of control film.

For the installation of the driving roll shaft 5, the feeding roll shaft 9, the upper driven roll shaft 7 and the lower driven roll shaft 8, bearings are arranged at two ends of the roll shafts and are arranged in bearing seats, and the bearing seats are fixed on the frame 1.

The described embodiments are only some, but not all embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Claims

1. A film controllable longitudinal stretching ratio transmission device comprises a rack and is characterized in that two groups of stretching devices are arranged on the rack, and a driven roller shaft group is arranged between the two stretching devices; the stretching device comprises a speed reducer and three driving roll shafts which are rotatably arranged on the rack and are arranged in a delta shape, gears are arranged at the end parts of the three driving roll shafts and are sequentially meshed and driven along the stretching direction of the film, and one of the driving roll shafts is in transmission connection with the speed reducer; the driven roller shaft group comprises a plurality of upper driven roller shafts and a plurality of lower driven roller shafts which are rotatably arranged on the rack, the upper driven roller shafts and the lower driven roller shafts are arranged in a staggered mode, and the film is in a continuous S shape and sequentially winds through the upper driven roller shafts and the lower driven roller shafts.

2. The film controllable longitudinal stretching ratio transmission device of claim 1, wherein the speed reducer of said stretching device at the exit end of the film has a higher speed than the speed reducer of said stretching device at the entrance end of the film.

3. The film longitudinal stretching ratio controllable transmission device as claimed in claim 1, wherein the front end of said stretching device at the film inlet end is provided with a plurality of feeding roller shafts rotatably mounted on the frame.

4. A film controlled longitudinal stretch ratio transmission as claimed in claim 3, wherein said feed roll shaft, upper driven roll shaft and lower driven roll shaft are all steel rolls.

5. The film controllable longitudinal stretching ratio transmission device of claim 1, wherein the driving roll shaft is a rubber roll.

6. The film longitudinal stretching ratio controllable transmission device of claim 1, wherein the output end of the speed reducer is further connected with a rotation speed sensor.