CN201890651U - Film slitting device - Google Patents

Abstract

A film slitting device, which is used to provide the film to the winding device, and cut the film after the winding is completed, including a supporting frame, which is arranged on the film output side of the casting machine, and a guide rail extending horizontally and horizontally is arranged on it; The carriage is movably arranged on the guide rail of the support frame, on which there are several guide rollers extending horizontally along the longitudinal direction, and the film discharge rollers arranged at the front end of the carriage parallel to the guide rollers; On the frame, two swing arms distributed horizontally and longitudinally on both sides of the carriage, a cutting knife arranged between the front ends of the two swing arms, arranged horizontally along the longitudinal direction, and connected to drive the two swing arms between the first position and the second position The synchronously swinging cylinder, when the swing arm is in the first position, the cutter cuts the film, when the swing arm is in the second position, the cutter is far away from the film, the above cutting device has simple structure, high working efficiency, good cutting effect Good and other advantages.

Description

A film cutting device

technical field

The utility model relates to an auxiliary device of a casting machine, in particular to a film cutting device.

Background technique

The tape casting machine is widely used in the field of film making because of its advantages of high speed, stability, environmental protection, energy saving, uniform and adjustable product thickness, etc. It is mainly composed of an extrusion device, a roller device, a winding device and a control device, among which , the extrusion device is composed of an extruder and a mold connected to the extruder, and the roller device is composed of a roller frame, a cooling roller arranged on the roller frame and a number of conveying rollers. When working, the cooling roller and the mold The die openings are set opposite to each other. The die openings of the mold extrude the hot melt adhesive liquid and cast it on the surface of the cooling roll. After being cooled by the cooling roll, a solid film is formed and is continuously output by the conveying roll. The winding device is located at the end of the casting machine. It has It is used to roll and store the winding roller that outputs the film from the conveying roller. When the radius of the film roll on the winding roller reaches the requirement, the film needs to be cut to change the roll. The existing film cutting is done manually, and film fracture often occurs. Unevenness causes problems such as film waste, low work efficiency, high labor intensity, etc., and it takes a long time to change the roll, and the continuous winding of the winding device cannot be realized, which affects the working efficiency of the tape casting machine.

Contents of the invention

The purpose of the utility model is to provide a film cutting device with simple structure, economical and practical, and good cutting effect for the deficiencies of the prior art.

The purpose of this utility model is achieved through the following technical solutions:

A film slitting device, which is used to provide film to the winding device and cut the film after the winding is completed, is characterized in that it includes a supporting frame, which is arranged on the film output side of the casting machine, and is provided with a horizontal horizontal The extended guide rail; the carriage, which is movably arranged on the guide rail of the support frame, on which are distributed a number of guide rollers extending horizontally along the longitudinal direction, and the film discharge rollers arranged at the front end of the carriage and parallel to the guide rollers; the cutting mechanism, including Two swing arms pivoted on the slide frame and distributed longitudinally and horizontally on both sides of the slide frame, a cutting knife arranged between the front ends of the two swing arms and arranged horizontally along the longitudinal direction, and connected to drive the two swing arms in the first position and the second position The cylinder swings synchronously between the two positions. When the swing arm is in the first position, the cutter cuts the film. When the swing arm is in the second position, the cutter is away from the film.

Further, the winding device includes a base, and a rotary frame rotatably mounted on the base through a rotating shaft extending longitudinally and horizontally. Two take-up rollers, support rods extending horizontally along the longitudinal direction on the upper and lower sides of the rotating shaft, and a motor connected to drive the take-up rollers to rotate. Work alternately.

Further, the two swing arms are pivotally arranged on the carriage coaxially with the film discharge roller at the front end of the carriage.

Further, the guide rail is provided with a position sensor for detecting the position of the carriage to determine the radius of the film roll.

The utility model has the following beneficial effects:

When working, the film output roller and the film roll are always tangent, and the film roll is driven by the take-up roll to store the film. As the radius of the film roll increases, the carriage moves backward along the guide rail, so as to ensure the film roll storage quality and prevent film wrinkles. ;The position sensor used to detect the carriage is installed on the guide rail, and the radius of the film roll can be judged according to the stroke of the carriage, so as to prompt the operator to cut the film and change the roll; through the cutting mechanism set at the front end of the carriage, it can be accurately and neatly Cut the film to make the fracture neat, reduce labor intensity and improve production efficiency; the winding device is equipped with two winding rollers through the rotary frame, and the winding rollers are alternately wound by the two winding rollers, so as to realize the uninterrupted winding of the winding device , effectively improve the working efficiency of the utility model, and the upper and lower support rods are arranged on the slewing frame, which can facilitate the cutting of the film by the cutting mechanism.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a structural schematic diagram of the utility model, and the winding device is in the state of changing rolls.

Fig. 3 is a structural schematic diagram of the utility model, the cutter is in the cutting position.

Fig. 4 is a partially enlarged view of the utility model.

Detailed ways

Referring to Figures 1 to 4, a film cutting device includes a support frame 1, a carriage 2, a cutting mechanism and a winding device.

The support frame 1 is connected to the film output side of the tape casting machine, and a guide rail 11 extending horizontally is arranged on it. The carriage 2 is movably arranged on the guide rail 22 of the support frame 1. Guide roller 21, and be arranged on the film roller 24 that is parallel with guide roller 21 at the front end of carriage 2, slittering mechanism comprises coaxial with film roller 24 and is pivotally arranged on carriage 2 and is distributed on carriage 2 two sides along horizontal longitudinal direction. The two swing arms 23 on the side are arranged between the front ends of the two swing arms 23 and the cutter 25 arranged horizontally in the longitudinal direction, and are pivotally arranged between the carriage 2 and the two swing arms 23 for driving the two swing arms 23 in the first The cylinder 22 that swings synchronously between the first position and the second position, when the swing arm 23 is in the first position, the cutter 25 cuts the film 3, when the swing arm 23 is in the second position, the cutter 25 is far away from the film 3, and the guide rail 11 is provided with a position The sensor is used to detect the position of the carriage 2 to determine the radius of the film roll 31 .

The winding device comprises a base (not shown in the figure) and a rotating frame 4 rotatably installed on the base through a rotating shaft 43 extending longitudinally and horizontally. The two winding rollers 42 on both sides, the supporting rods 41 on the upper and lower sides of the rotating shaft 43 extending horizontally along the longitudinal direction, and the motor (not shown) connected to drive the winding rollers 42 to rotate, the slewing frame 4 can be operated Rotate around the rotating shaft 43 so that the two winding rollers 42 and the film outlet roller 24 work alternately.

The specific working method is: move the carriage 2 forward so that the film roller 25 is tangent to the film roll 31, and the motor drives the winding roller 42 to rotate to roll and store the film 3. As the radius of the film roll 31 increases, the carriage 2 moves along the guide rail. 11 moves backward, when the radius of the roll film 31 reaches a certain value, the position sensor sends out an alarm to prompt the operator to cut the film 3 and change the roll, and the operator operates the slewing frame 4 of the winding device to rotate to make the winding roller on the other side 42 turns to the front, and controls the cylinder 22 to drive the swing arm 23 to swing forward so that the cutter 25 cuts off the film 3, so that continuous winding can be realized repeatedly.

The above is only a preferred embodiment of the utility model, so the scope of implementation of the utility model cannot be limited with this, that is, the equivalent changes and modifications made according to the patent scope of the utility model and the content of the specification should still belong to the utility model. Within the scope covered by the utility model patent.

Claims (4)

1. a divided thin film cutting apparatus is used for providing film to wrap-up, and cuts off film after rolling is finished, and it is characterized in that: comprise bearing support, the film that is arranged at casting machine is exported a side, and it is provided with the guide rail that transverse horizontal is extended; Balladeur train is actively set on the guide rail of bearing support, is distributed with some longitudinally horizontally extending guiding rollers on it and is arranged at the balladeur train front end membrane roller parallel with guiding roller; Cutting mechanism, comprise be hubbed on the balladeur train, along level vertically be distributed in the balladeur train both sides two swing arms, be arranged between the two swing arm front ends, the cutting knife of horizontal arrangement longitudinally, and the cylinder that connects driving two swing arms synchronous swing between the primary importance and the second place, when swing arm is in primary importance, described cutting knife cutting film, when swing arm is in the second place, described cutting knife is away from film.

2. a kind of divided thin film cutting apparatus according to claim 1, it is characterized in that: described wrap-up, comprise base and be rotatably installed on turret mount on the base by the rotating shaft that vertical equity extends, described turret mount be provided with horizontal-extending longitudinally and be positioned at two wind-up rolls of rotating shaft and arranged on left and right sides, longitudinally horizontal-extending is positioned at the cramp bar of the upper and lower both sides of rotating shaft and connects and drives the motor that wind-up roll rotates, described turret mount can be operated revolution around the shaft so that two wind-up rolls and membrane roller replace cooperating.

3. a kind of divided thin film cutting apparatus according to claim 1 is characterized in that: two described swing arms and coaxial being hubbed on the balladeur train of described balladeur train front end membrane roller.

4. a kind of divided thin film cutting apparatus according to claim 1, it is characterized in that: described guide rail is provided with position transduser, is used to detect the position of described balladeur train to determine the radius size of film volume.

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