CN203063111U

CN203063111U - Plastic film conveying device

Info

Publication number: CN203063111U
Application number: CN 201320070524
Authority: CN
Inventors: 罗宇峰
Original assignee: XIAMEN SHUNFENG PACKING MATERIAL CO Ltd
Current assignee: Xiamen Jinhuifeng New Packaging Materials Co ltd
Priority date: 2013-02-06
Filing date: 2013-02-06
Publication date: 2013-07-17
Anticipated expiration: 2023-02-06

Abstract

The utility model discloses a plastic film conveying device. The plastic film conveying device comprises an upper roll shaft and a lower roll shaft, which are aligned at each other in the vertical direction, wherein the upper roll shaft and the lower roll shaft clamp the side edges of a plastic film in a rolling way, and an included angle formed between an axial direction, facing the inside of the plastic film, of the upper roll shaft and the lower roll shaft and a conveying direction of the plastic film is an acute angle. The upper roll shaft and the lower roll shaft clamp the side edges of the plastic film in the rolling way to convey the plastic film, and the upper roll shaft and the lower roll shaft are obliquely arranged, so that the axial direction, facing the inside of the plastic film, of the upper roll shaft and the lower roll shaft forms an acute angle with the conveying direction of the plastic film, thus an oblique force is generated when the upper roll shaft and the lower roll shaft roll, the oblique force can be decomposed into a longitudinal pull force facing the conveying direction of the plastic film and a transverse pull force facing the outer side direction of the plastic film, and the transverse pull force has a trend of widening the plastic film, so that the middle part of the plastic film can be prevented from being creased, and a reeled finished product is guaranteed to be flat.

Description

Plastic film feeding apparatus

Technical field

The utility model relates to a kind of plastic film feeding apparatus.

Background technology

Biaxial tension is a kind of comparatively advanced plastic film production process, and the plastic sheeting that obtains by biaxial tension has littler thickness and more excellent performance.Particularly, along with expanding economy, growing field needs optical-grade plastic film or the super-thin plastic film of high strength, high insulating property, and these plastic sheetings generally can only make by stretch processes.

The employing stretch processes is produced plastic sheeting, earlier thicker plastic sheeting is carried out preheating usually, longitudinally stretches with horizontal both direction then, finalizes the design again, obtains the littler plastic sheeting of thickness.When longitudinal stretching, be to utilize the roller of certain speed ratio that plastic sheeting is carried out longitudinal stretching; When cross directional stretch, be the dual-side that utilizes the clamp clamps plastic sheeting, thereby and anchor clamps advanced along track plastic sheeting is carried out cross directional stretch.

Yet when longitudinal stretching, plastic sheeting is in the process of longitudinally being carried by roller, and plastic sheeting shrinks in the middle of roller easily, makes that the mid portion of plastic sheeting is wrinkling, causes the finished product out-of-flatness of finally batching.

The utility model content

The utility model provides a kind of plastic film feeding apparatus, and it has overcome the existing deficiency of background technology.The technical scheme that its technical problem that solves the utility model adopts is:

A kind of plastic film feeding apparatus, it comprises last roll shaft and the lower roller shaft that vertical alignment arranges, should go up the side that roll shaft and the rolling of this lower roller shaft clamp plastic sheeting, roll shaft on this, the lower roller shaft angle between the throughput direction of the axial direction of the inside of plastic sheeting and plastic sheeting is acute angle.

Among one preferred embodiment: roll shaft is that soft materials is made on this, and this lower roller shaft is that the rigidity material is made.

Among one preferred embodiment: also comprise pedestal and swing arm, this lower roller shaft is arranged on this pedestal, and an end of this swing arm is articulated on this pedestal, and roll shaft is arranged on the other end of this swing arm rotationally on this.

Among one preferred embodiment: comprise that also this angle demodulator is connected with this swing arm for the angle demodulator of the pendulum angle of adjusting this swing arm.

Among one preferred embodiment: this angle demodulator is cylinder.

Among one preferred embodiment: this angle demodulator is the scale wheel disc.

Among one preferred embodiment: the angle of described acute angle≤88 degree, 〉=80 degree.

The technical program is compared with background technology, and it has following advantage:

1. should go up roll shaft and carry this plastic sheeting with the side that the rolling of this lower roller shaft clamps plastic sheeting, should go up roll shaft, lower roller shaft is obliquely installed and makes its angle between the throughput direction of the axial direction of the inside of plastic sheeting and plastic sheeting is acute angle, like this, should go up roll shaft, lower roller shaft produces a skew force when rolling, described skew force can resolve into the longitudinal pulling force towards the throughput direction of plastic sheeting, reach the lateral pull towards the lateral direction of plastic sheeting, described lateral pull has the trend that widens described plastic sheeting, thereby the mid portion that can prevent plastic sheeting is wrinkling, guarantees that the finished product that batches is smooth.

2. should go up roll shaft is that soft materials is made, and this lower roller shaft is that the rigidity material is made, and described upward roll shaft, lower roller shaft can be stabilized in and clamp described plastic sheeting.

3. an end of this swing arm is articulated on this pedestal, and roll shaft is arranged on the other end of this swing arm rotationally on this, by rotating this swing arm, can regulate the distance between the roll shaft and this lower roller shaft on this easily.

4. also comprise the angle demodulator for the pendulum angle of adjusting this swing arm, it is convenient, accurate to regulate on this distance between the roll shaft and this lower roller shaft.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 has illustrated the schematic perspective view of the utility model plastic film feeding apparatus.

Fig. 2 has illustrated the schematic diagram of plastic film feeding apparatus shown in Figure 1 when carrying plastic sheeting.

The specific embodiment

Please refer to Fig. 1, plastic film feeding apparatus 100 of the present utility model is used for preventing that plastic sheeting is wrinkling when carrying, and it comprises roll shaft 10 on, a lower roller shaft 20, a pedestal 30, a swing arm 40 and an angle demodulator 50.

Should go up roll shaft 10 is that soft materials is made, as rubber.

This lower roller shaft 20 is that the rigidity material is made, as stainless steel.

These swing arm 40 curved shapes.This swing arm 40 can be around its lower end swing.

This angle demodulator 50 is used for adjusting the pendulum angle of this swing arm 40.This angle demodulator 50 can be cylinder or scale wheel disc etc.

Should go up the setting of vertically aliging of roll shaft 10 and this lower roller shaft 20; This lower roller shaft 20 rolls and is arranged on this pedestal 30; The lower ending pivot of this swing arm 40 is connected on this pedestal 30; Upward roll shaft 10 rolls and is arranged on the upper end of this swing arm 40; This angle demodulator 50 is arranged on this pedestal 30 and with this swing arm 40 and is connected.

Please refer to Fig. 1 and Fig. 2, when longitudinally the B direction was carried plastic sheeting 200, the both sides of the width of plastic sheeting 200 respectively were provided with a described conveying device 100.Should go up roll shaft 10 and roll with this lower roller shaft 20 and clamp the side of plastic sheeting 200, and roll shaft 10 on this, the lower roller shaft 20 angle C between the throughput direction B of the axial direction A of the inside of plastic sheeting 200 and plastic sheeting 200 is acute angle.The angle of described angle C≤88 degree, 〉=80 degree.

Described upward roll shaft 10, lower roller shaft 20 produce the frictional force F along its radial direction when carrying, according to mechanics principle, described frictional force F can be decomposed into F1 and F2, and frictional force F1 is towards the throughput direction B of plastic sheeting 200, and frictional force F2 points to the outside of plastic sheeting 200.Because frictional force F2 points to the outside of plastic sheeting 200, therefore, frictional force F2 has the trend that widens described plastic sheeting 200, thereby the mid portion that prevents described plastic sheeting 200 is wrinkling.

The above, it only is the utility model preferred embodiment, so can not limit the scope that the utility model is implemented according to this, i.e. the equivalence of doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model contains.

Claims

1. plastic film feeding apparatus, it is characterized in that: it comprises last roll shaft and the lower roller shaft that vertical alignment arranges, should go up the side that roll shaft and the rolling of this lower roller shaft clamp plastic sheeting, roll shaft on this, the lower roller shaft angle between the throughput direction of the axial direction of the inside of plastic sheeting and plastic sheeting is acute angle.

2. a kind of plastic film feeding apparatus according to claim 1, it is characterized in that: roll shaft is that soft materials is made on this, this lower roller shaft is that the rigidity material is made.

3. a kind of plastic film feeding apparatus according to claim 2, it is characterized in that: also comprise pedestal and swing arm, this lower roller shaft is arranged on this pedestal, and an end of this swing arm is articulated on this pedestal, and roll shaft is arranged on the other end of this swing arm rotationally on this.

4. a kind of plastic film feeding apparatus according to claim 3 is characterized in that: comprise that also this angle demodulator is connected with this swing arm for the angle demodulator of the pendulum angle of adjusting this swing arm.

5. a kind of plastic film feeding apparatus according to claim 4, it is characterized in that: this angle demodulator is cylinder.

6. a kind of plastic film feeding apparatus according to claim 4, it is characterized in that: this angle demodulator is the scale wheel disc.

7. a kind of plastic film feeding apparatus according to claim 1 is characterized in that: the angle of described acute angle≤88 degree, 〉=80 degree.