CN101850609A - Vane device for cooling film blowing machine - Google Patents

Abstract

The invention discloses a vane device for cooling a film blowing machine, which comprises a main body, an air inlet pipe and an air outlet. The inner part of the main body is separated into a plurality of spaces by three layers of annular structures, and air ports are densely distributed on the annular structures. During work, air enters the main body from the air inlet pipe and passes through by means of the air ports layer by layer on the ring structures and finally reaches the air outlet and is blown off. The air blown off is adequate and uniform completely, thereby the cooling of the pipe film of the film blowing machine is very uniform.

Description

Blown film cooling air ring device

FIELD

[0001] The present invention relates to a film blowing machine supporting means, in particular a cooling air ring blown film apparatus. Background technique

[0002] is the key was cooled blown film tube in the film forming process, normally by means of blowing cooling air ring. The air rings are currently connected with a plurality of intake duct hollow structure, air from the air inlet duct into the ring inner wall of the ring by the wind blow outlet, to achieve a film blowing machine blowing tube so cooling purposes. However, this air ring blowing wind is not uniform, near the intake duct outlet strong wind blowing, and far away from the intake duct outlet air blown weak, resulting in a film blowing machine tube uneven cooling, and thus will produce uneven phenomenon after Bohou film blowing machine pipe cool completely, seriously affecting the quality of the film blowing machine pipe, high rate of defective products.

SUMMARY

[0003] The object of the present invention is to provide a uniformity of the wind blown film cooling air ring device.

[0004] The specific technical solution of the present invention is:

[0005] A blown film cooling air ring device, comprising a main body, inlet and outlet duct, inside the body of a three-layer structure is partitioned into a plurality of annular spaces, the cyclic structure and each wind clouds hole.

[0006] The plurality of air inlet tube, tangential air inlet, along the periphery of the body uniform.

[0007] The cyclic structure is formed by a tailor-welded stainless steel.

Equal spacing between the three-ring structure [0008].

When the [0009] work, start air inlet pipe into the body, through the vents and then through the layers of the cyclic structure, and thus finally reaches the outlet is blown out. Thus the air blown out adequate and very uniform, and therefore the film tube cooled blown film is also very uniform; With a plurality of tangential inlet into the wind, according to the number of the supply duct, multiple parallel into an outer air inlet into the air contacting conduit, so that a more uniform distribution of the cool air.

[0010] The cooled film blowing machine according to the present invention has the following advantages with air ring means: ① a simple structure, easy manufacture; ② cleverly devised through the wind path in the body, so that the last air blown from the outlet is uniform; ③ blown film through which the film tube is cooled uniformly cooled, improve quality.

BRIEF DESCRIPTION

[0011] The following figures and examples further illustrate the present invention in detail.

[0012] FIG. 1 is a schematic view of the structure of the present invention, air ring for cooling blown film apparatus;

[0013] FIG. 2 is a plan view of Figure 1;

[0014] FIG. 3 is a cross-sectional view AA.

[0015] FIG: 1, the main body; 2, inlet duct; 3, outlet; 4, ring structure; 5, vent. detailed description

[0016] As shown in FIG 1 ~ 3, the embodiment shows an embodiment of the present invention. One kind of cooling air ring blown film apparatus includes a main body 1, inlet pipe 2, outlet 3, inside the main body 1 by a three-layer structure 4 is partitioned into a plurality of annular spaces, each annular structure 4 and clouds wind hole 5. The cyclic structure formed by welding a stainless steel material 4 is formed, the spacing between the annular structure 4 is equal to three, a whole 2mm thick stainless steel sheet welded.

When the [0017] work, start air intake duct 1 into the body 2, through the air holes 4 through 5 layers of a cyclic structure, and finally reaches the outlet 3 and thus blown out air blown out sufficient and very uniform , blown film tubular film cooling is also very uniform.

[0018] As shown, for the production of a film having a thickness of 37um, we need better cooling effect, the tangential air inlet duct to 8, tangential air inlet, along the periphery of the body uniform. While for the use of the original in the supply duct 4, for an air intake duct 2 after contact with a shunting the air supply conduit.

Claims (4)

1. One kind of cooling air ring blown film apparatus includes a main body, inlet and outlet duct, characterized in that: said inner body by a three-layer structure is partitioned into a plurality of annular spaces, the cyclic structure and each layer clouds wind hole.
2. The cooled blown film according to claim 1 air ring device, wherein: a plurality of the intake duct, tangential air inlet, along the periphery of the body uniform.
3. The cooled blown film according to claim 1 air ring device, wherein: said cyclic structure is formed by welding together stainless steel.
4. The cooled blown film according to claim 1 air ring means, wherein: three equally spaced between the cyclic structure.