KR920002460Y1 - Discharge apparatus for thermoplastic resin pipe - Google Patents

Abstract

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Description

Drawer of Thermoplastic Pipe

1 is a main portion of the present invention.

2 is a side cross-sectional view of the present invention.

3A is a cross-sectional view taken along the line A-A of FIG. 2, (b) a cross-sectional view taken along the line B-B of FIG.

4 is a conventional side cross-sectional view.

FIG. 5A is a cross-sectional view taken along the line C-C of FIG. 4, (b) a cross-sectional view taken along the line D-D of FIG.

* Explanation of symbols for main parts of the drawings

10: guide tube 20: thermoplastic resin tube

30, 30 ', 30 ": take off film 31, 31', 31": supply reel

32, 32 ', 32 ": Guide Roller 33, 33', 33": Intake Roller

34, 34 ', 34 ": take-up reel

The present invention relates to a thermoplastic resin tube take-out device which is a part of the manufacturing process of the thermoplastic resin tube.

In general, during the manufacturing process of the thermoplastic resin tube, the thermoplastic resin tube is drawn through a certain guide tube under heat, and when the thermoplastic tube is heated above the softening point in the drawing process, it tends to increase even in slight tension. If the draw roll is pulled directly by the thermoplastic resin tube and pulled out, the frictional force generated between the guide tube and the thermoplastic pipe and the tension of the draw roller increase the thermoplastic resin tube, which increases the defect rate of the product. As a means to prevent this, it is possible to prevent stretching during the axial movement of the thermoplastic resin tube by not pulling any thermoplastic resin tube directly, but by using a separate take-out film, so that no tension is applied to the thermoplastic resin tube. It is conventional.

In constructing such a drawing device, as shown in FIG. 4, a supply reel is provided at the front and rear sides of the guide tube 50 to which the film forming die 51 is coupled to the front side. 52) and guide rollers 53, take-out rollers 54, and take up reel 55, respectively, to operate the take-up reel 55, The film 56 is moved so that the outer periphery of the thermoplastic resin tube 51 can be wrapped around the guide tube 50 while being moved.

However, in the conventional configuration as described above, the thermoplastic resin tube 57 is moved by using one wide take-off film 56, and the following problems are pointed out.

That is, conventionally, by using one take-off film 56, the width thereof is formed wide enough to enclose the thermoplastic resin tube 57, so that the take-up film 56 is a guide tube 50. The film forming die 51 was bonded to the front side of the guide tube 50 to surround the thermoplastic resin tube 57 therein, but the film forming die 51 was wider because the width of the take-up film 56 was as described above. As the 5a diagram does not uniformly wrap the thermoplastic resin tube 57, the inside of the guide tube 50 may be wrinkled or overlapped, and the curling spiral may occur frequently. (57) had a problem that the takeover process was not smooth.

Therefore, the present inventors who fully understand the above-mentioned problems have devised the take-out apparatus of the present invention for the purpose of preventing the phenomenon of wrinkles when the take-up film enters the film forming die and the warping in the guide tube. Dividing the width of the take-up film by the circumferential length of the thermoplastic resin pipe by two or more parts, supplying the take-up films individually in various directions, and the films divided in the guide tube are combined to wrap and move the thermoplastic resin pipe. I would have to.

Hereinafter, with reference to the accompanying drawings of the present invention that can be specifically carried out the above object will be described in detail.

1 and 2 show the width of the take-up films 30, 30 'and 30 " As an example, the take-up film 30, 30 'at the front side of the guide tube 10 through which the take-up film 30, 30', 30 "and the thermoplastic resin tube 20 pass. Guide reels (31) (31 ') (31 ") and winding rollers (32) (32') for guiding these retractable films (30), (30 ') and (30") respectively. (32 ") is installed in the rear side of the guide tube 10, the take-up roll 33 for pulling the take-up film 30, 30 '(30") while rotating by a separate motor (not shown) (33 ') (33 ") take-up reel (34) on which the take-up film (30), 30', 30" pulled by the take-out roll (33) (33 ') (33 ") ( 34 ') 34 "are installed.

Referring to the effect of the present invention configured as described above are as follows.

First, the operation of the device of the present invention uses the take-up film 30, 30 'and 30 "pulled by the take-up rolls 33, 33' and 33" as in the prior art. A friction force generated between the 30 and 30 'and the 30' and the thermoplastic resin tube 10 is used to pass the guide tube 10 without stretching the thermoplastic resin tube 20.

In the apparatus for pulling the thermoplastic resin tube 20 in this process, the present invention is the thermoplastic resin tube 20 to move the wrapped around the width of the take-up film 30, 30 ', 30 "applied thereto When the width of these take-up films 30, 30 'and 30 " are combined to equal the circumferential length, the take-up films 30 and 30' are made equal to the length of the circumference of the thermoplastic paper tube 20. The supply reels 31, 31 ', 31 " wound around 30 " may be provided on the front side of the guide tube 10 at equal intervals in equal fractions.

That is, as an example, the supply films 31, 31 ', 31 "are installed at intervals of 120 DEG as in the first and second diagrams, and then the take-up films 30, 30', 30 " When supplied, these take-up films 30, 30 ′, 30 ″ move the thermoplastic resin tube 20 while passing through the guide tube 10, wherein the take-up films 30, 30 ′ ( When the 30 ") enters the guide tube 10, the outer surface of the thermoplastic resin tube 20 is neatly wrapped as shown in FIG. 3a, so that wrinkles are not generated and the inside of the guide tube 10 is not twisted. Since the above state is maintained until the tube 10 is completely passed, it is possible to smoothly take out the work without stretching the thermoplastic resin tube 20.

Therefore, it is possible to perform a smooth take-out operation without the need for a film forming die 51 for guiding the take-up film 56 to be wound around the thermoplastic resin tube 57 as in the related art.

As described above, according to the present invention, in the take-out device which is a part of the manufacturing process of the thermoplastic resin pipe, the take-up film applied thereto is supplied from various directions to prevent the film from being crumpled or spirally twisted inside the guide pipe. It is a useful design to be able to take out the work smoothly without stretching the thermoplastic resin tube.

Claims (1)

Supply reel and guide roller for supplying the take-up film on the front side of the guide tube and the take-up reel of the usual thermoplastic resin tube in which the take-up roll and take-up reel rotated by a separate motor (not shown) are installed on the rear side. In the apparatus, a plurality of take-up films 30, 30 ′, 30 ″ having a width as long as the circumferential length of the thermoplastic resin tube 20 passing through the guide tube 10 is divided into two or more portions are various. Supply reels (31) (31 ') (31 ") and guide rollers (32) (32') (32") are provided at the front side of the guide tube (10) so as to be supplied in the direction. 33) (33 ') 33 "and take up reels 34, 34' and 34" are provided, respectively, The thermoplastic resin pipe take-out apparatus characterized by the above-mentioned.