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Cold air knife device of TPU film-blowing device and TPU film-blowing device

A technology of cold air knife and knife device, which is applied in the field of cold air knife device and TPU film blowing equipment, and can solve problems such as easy adhesion, seriousness, and influence of film strength

Inactive Publication Date: 2010-07-21
ZHONGSHAN BREATHTEX SPECIALITY MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when the film enters the first traction roller through the herringbone plate, the two layers of film formed after the air is discharged are often prone to adhesion due to high temperature, especially for some types of products, the adhesion phenomenon is more serious
In addition, when the film comes out of the die to the herringbone plate and then to the first traction roller, the temperature of the film is very high, and it is easy to be greatly affected by the friction of the first traction roller, which will affect the finished film after cooling. Strength of
In order to avoid the adhesion between the films and prevent the impact of high temperature on the film performance, the production process has to reduce the speed to properly prolong the time for the film to enter the first traction roller to reduce the temperature of the film. This method not only cannot Really effectively solve the sticking problem of the film, and greatly restrict the production speed of the film

Method used

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  • Cold air knife device of TPU film-blowing device and TPU film-blowing device
  • Cold air knife device of TPU film-blowing device and TPU film-blowing device
  • Cold air knife device of TPU film-blowing device and TPU film-blowing device

Examples

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Effect test

Embodiment 1

[0042] A kind of cold air knife device of TPU film blowing equipment, such as figure 1 , figure 2As shown, it includes an air cavity 200 , an air blowing mechanism 300 and an air outlet mechanism 400 . The air blowing mechanism 300 and the air outlet mechanism 400 are respectively arranged on two sides of the air chamber 200 , the air blowing mechanism 300 is fixedly communicated with the air chamber 200 , and the air outlet mechanism 400 is fixedly communicated with the air chamber 200 . During use, the blower mechanism 300 blows air to the air chamber 200 , usually the blower mechanism 300 delivers high-pressure air to the air chamber 200 , and the high-pressure air enters the air chamber 200 and is discharged from the air outlet mechanism 400 fixedly connected to the air chamber 200 .

[0043] Usually, the air chamber 200 can be provided with an air inlet, and the blowing mechanism 300 can blow air to the air chamber 200 through the air inlet.

[0044] Usually, the air c...

Embodiment 2

[0055] A kind of cold air knife device of TPU film blowing equipment, such as image 3 , Figure 4 As shown, it includes an air cavity 200 , an air blowing mechanism 300 and an air outlet mechanism 400 . The air blowing mechanism 300 and the air outlet mechanism 400 are arranged on both sides of the air chamber 200, the air blowing mechanism 300 is fixedly connected with the air chamber 200, the air outlet mechanism 400 is fixedly connected with the air chamber 200, and the air chamber 200 and the air outlet mechanism 400 are integrally formed. .

[0056] During use, the blower mechanism 300 blows air to the air chamber 200 , usually the blower mechanism 300 delivers high-pressure air to the air chamber 200 , and the high-pressure air enters the air chamber 200 and is discharged from the air outlet mechanism 400 fixedly connected to the air chamber 200 . The air cavity 200 and the air outlet mechanism 400 can be provided as an integrated structure, so that, on the one hand, ...

Embodiment 3

[0067] A kind of TPU film blowing equipment, such as Figure 5 As shown, it includes a die head 900, an air ring 500, a herringbone plate 600, a first traction roller 700 and a winding device, and two sets of cold air knife devices 100 are also provided, and each set of cold air knife devices 100 is arranged on the herringbone plate 600 and the winding device. Between the first traction rollers 700.

[0068] The production process of the TPU film blowing equipment is: the raw materials are first processed by the die head 900 of the TPU film blowing equipment, and then blown into a film 800 by the wind ring 500. Air bags, under the action of the first traction roller 700, the film 800 passes through the herringbone plate 600 to gradually squeeze out the air inside the film 800, and finally collect it through the winding device. After the film 800 passes through the herringbone plate 600 and before entering the first traction roller 700, two sets of cold air knife devices 100 b...

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Abstract

The invention relates to a cold air knife device of a TPU film-blowing device and a TPU film-blowing device. The cold air knife device is provided with an air cavity, a blasting mechanism and an air-out mechanism, wherein the blasting mechanism and the air-out mechanism are separately arranged on the two sides of the air cavity, the blasting mechanism is fixedly communicated with the air cavity, the air-out mechanism is fixedly communicated with the air cavity, the air cavity is provided with an air cavity main body and an end part, the air cavity main body is fixedly communicated with the end part, the end part is provided with an opening, the opening fixedly communicated with the air-out mechanism; and the air-out mechanism is provided with a first air-out plate and a second air-out plate which are in parallel, and the first air-out plate and the second air-out plate are separately fixedly connected with the opening of the end part. The TPU film-blowing device comprises a die head, an air ring, a lambdoidal plate, a first traction-roller, a rolling device and the cold air knife device, and the cold air knife device is arranged between the lambdoidal plate and the first traction-roller. The TPU film-blowing device of the invention can be used to prevent the adhesion of films, increase the production efficiency and ensure the physical performance of TPU films.

Description

technical field [0001] The invention relates to the technical field of TPU processing equipment, in particular to a cold air knife device of TPU film blowing equipment and TPU film blowing equipment. Background technique [0002] TPU is the abbreviation of Thermoplastic Urethane, and the Chinese name is thermoplastic polyurethane elastomer. TPU material has excellent characteristics of high tension, high tensile force, toughness and aging resistance, and it is also an excellent environmental protection material. TPU material not only has high strength, good toughness, wear resistance, cold resistance, oil resistance, water resistance, aging resistance, weather resistance and other properties unmatched by other plastic materials, but also has high water resistance, moisture permeability, wind resistance, cold resistance, antibacterial, It has many excellent properties such as mildew resistance, warmth retention, UV resistance and energy release. Therefore, TPU materials hav...

Claims

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Application Information

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IPC IPC(8): B29C55/28B29K75/00
Inventor 焦连英杨文会吴建其
Owner ZHONGSHAN BREATHTEX SPECIALITY MATERIAL CO LTD