KR101402266B1 - Apparatus and Method For manuFacturing oF Folded Film yarn having enhanced weavability - Google Patents

Abstract

The present invention relates to a method and an apparatus for manufacturing a composite film affix with improved rigidity, and more particularly, to a method for manufacturing a composite film affix with improved rigidity, The splitted portion and the non-split slit portion in which three lines are periodically formed in a predetermined length are formed so as to be divided so that the durability is stabilized by the split portion by the splittable portion while having the woven fabric improved by the flexibility by these split portions And to a manufacturing method thereof.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an apparatus for manufacturing a flexible film,

The present invention relates to an apparatus and a method for manufacturing a complicated film liner having improved rigidity, and more particularly, to a method and apparatus for producing a liner affixed to a film by folding the cut film yarn inwardly and folding the film yarn inwardly, A split film portion and a non-split slit portion cut out in a net shape are locally formed so that the flexibility of the split film portion can be improved, A manufacturing apparatus, and a manufacturing method.

As is known, a film yarn produced by cutting a film-shaped film sheet by extrusion molding at a predetermined interval and stretching it is advantageous in that it can be inexpensively and rapidly formed.

However, since the film yarn has weak defects, the film yarn is limitedly used for the production of saddle stitches, turtles, and silk stones, and when the articles are stored in a saddle or a turret, The rupture of the film yarn may cause local rupture of the saddle or the bag that stores the article.

In recent years, in the field of the art, film affixing has been proposed in which both edges of a film yarn are folded inward to form a multilayered film layer, thereby completing defects of the film yarn.

Conventionally, in the manufacturing process of the film affixing process, yarn guides having a relatively small diameter of the film yarn are disposed between the stretching portion and the winding portion, and the stretched film yarn passes through the molding hole of the yarn guide, In this state, and wound and fixed to the winding part in this order.

However, it is difficult to inwardly fold both edges of the film yarn through the yarn guide and to fix the opposite edge portions of the film affixed inward through the winding to the intermediate portion in consideration of the elastic restoring force of the film yarn , It is very unstable.

If the shape stability of the film affixation is not maintained by the self-elastic restoring force as described above, the phenomenon that both edges of the film affix are developed during the weaving process is inevitably generated. Therefore, Is interfered with the conveying roller of the circular loom, or the shafts, thereby causing difficulty in stable weaving.

On the other hand, the present inventor has already filed Korean Patent Application No. 2012-65940 (a method for manufacturing film affixing apparatus having shape stability and a method for manufacturing film affixing) in order to solve this problem.

In the above-mentioned prior art, stable folding of the film affix is performed through the bending grooves, and when the folded film affix is wound on the bobbin, the folded portion of the film affix wound by hot pressing is thermally fixed, So that it is more stable.

Such a device and a film affix produced through the method can prevent the development of both ends of the film affix due to the self-restoring force during the weaving process, so that it is possible to solve various problems due to interference with the conveying roller or the chute during the circular weaving process Can be solved.

However, as a result of observing the woven and woven products, the inventors of the present invention have found that the film affix has a sufficient strength and flexibility in the case of flooring since the film layers are laminated.

However, in the case of high denier, it is difficult to obtain enough flexibility to weave even a triple adherend, so that difficulties arise due to the manufacture, and an improved apparatus and method have been required to improve the film adherence.

It is an object of the present invention, which is devised to overcome the above-described problems, to provide a film forming apparatus and a film forming method, And to provide a composite film laminating apparatus and method for manufacturing the same which have improved rigidity by virtue of the flexibility of the split portions and improved rigidity with a stable strength by the slit portion.

The above object is achieved by the following constitutions provided in the present invention.

According to the present invention, there is provided an apparatus for manufacturing a composite film-

An extrusion part for forming a film sheet through extrusion; A cutter for cutting the extruded film sheets at regular intervals to form film yarns; A stretching portion for stretching the film yarns while heating; A bending portion for bending both edges of each film yarn stretched by the stretching portion inwardly to form a film affixation in which both edges of the film yarn are folded inward; And a winding portion winding the film affix formed at the bent portion onto the bobbin,

In the front of the bent portion, a three-line forming portion for forming three lines in the longitudinal direction by cutting the bundle blades into a part of the width of the film yarn moving in the longitudinal direction,

The film yarn which moves to the bending portion and is folded inward toward the edge to form a film affix is characterized in that a split portion in which three lines are formed and a slit portion in which three lines are not formed are formed in a divided manner.

Preferably, the truncated-line forming portion includes a truncated section in which a plurality of truncated truncated truncated truncated truncated truncated truncated cone-shaped truncated cone-shaped truncated cone-shaped truncated cone-shaped truncated cone-shaped truncated cone-shaped truncated cone-shaped truncated cone truncated cone truncated truncated cone truncated truncated cone truncated truncated cone truncated truncated truncated cone truncated truncated truncated cone truncated truncated truncated truncated cone

More preferably, the outer circumference of the trifurcate is formed with protruded cut-outs at equal intervals, and the cut-outs are periodically cut into a part of the width of the film yarn moving in the longitudinal direction along the cut- Three wedges of a predetermined length are formed in a part of the width of the yarn by periodic infeed of three intercepts.

The stretching unit disposed in front of the bent portion includes a first stretching unit stretching the film yarns while heating the stretching yarns; And a secondary stretcher for stabilizing the structure of the stretched film yarn to prevent shrinkage,

The three-wire forming portion is disposed between the first stretching portion and the second stretching portion, and the film yarn formed by dividing the splitted portion and the slit portion in the three-wire forming portion passes through the secondary stretching device to stabilize the structure to prevent shrinkage .

The present invention also provides a method for producing a film-roughened film having improved flexibility,

Forming a film yarn by longitudinally cutting the extruded film sheet;

Pulling and stretching the slit-type film yarn while heating;

Forming three split lines of a predetermined length in a part of the width of the stretched film yarn fed in the longitudinal direction so as to form a splitted portion and a non-split slit portion in which three split lines are formed;

Bending inwardly the opposite edges of the film yarn in which the slit portion and the split portion are formed to form a film affix with both edges inwardly folded; And

And a winding step of winding the film affix to the bobbin.

Preferably, the film affixed to the bobbin may be hot-pressed by a hot press roller to thermally adhere the folded portion by hot pressing.

As described above, in the present invention, a three-line-line forming portion that is subdivided in the longitudinal direction is disposed in the partial width of the film yarn moving to the bent portion, so that the split yarn and the slit portion are formed in the film yarn formed by the film-

Since the split portion formed on the film affix has excellent flexibility due to the split, and the slit portion has excellent strength, the film affix formed by dividing the split portion has excellent flexibility and strength due to the mutually complementary action of the split portion and the slit portion Can be combined at the same time.

Therefore, the fabric produced by weaving the woven fabric with both excellent warpability due to excellent flexibility in the weaving process combines excellent strength and flexibility, and has improved quality.

In addition, in the present invention, in winding the film affix formed on the bobbin with the splitted portion and the slit portion being divided, the film affixed to the bobbin by arranging the heated hot roller on the take-up portion is hot-pressed by the hot roller, .

As a result, since the folded state of the film affixed to the bobbin is thermally fixed by hot pressing by the hot roller, the elasticity of the folded portion is lost and the folded portion is restored.

FIG. 1 and FIG. 2 are a perspective view and a front view showing an overall configuration of a composite film affixing apparatus according to a preferred embodiment of the present invention,
FIG. 3 is a view showing a forming process of a film yarn through a cut-off portion in a composite film-making apparatus according to a preferred embodiment of the present invention,
FIG. 4 shows the configuration and operation state of the bending portion and the winding portion in the composite film affixing apparatus of the present invention, which is proposed as a preferred embodiment of the present invention,
FIG. 5 is a view showing the configuration and operating state of the three-line-line forming unit in the apparatus for manufacturing a composite film film having improved rigidity, which is proposed as a preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings.

FIGS. 1 and 2 are a perspective view and a front view showing the overall configuration of a composite film laminating apparatus according to a preferred embodiment of the present invention. FIG. 3 is a cross- FIG. 4 is a cross-sectional view of a composite film film manufacturing apparatus according to a preferred embodiment of the present invention. FIG. 4 is a cross- FIG. 5 is a graph showing the configuration and operating state of the three-wire forming portion of the composite film affixing production apparatus of the present invention, which is proposed as a preferred embodiment of the present invention, It shows.

The apparatus and method for manufacturing a composite film according to the present invention are characterized in that the film F is formed through extrusion molding and the film F is cut to a predetermined width to form film yarns FY, (FFY) in which both edges are folded inward by folding the edge of the film yarn FY through inward bending.

The film affix (FFY) in which both edges are folded inward has an excellent durability including strength by mutual complementary action between the film layers forming the layered structure, because the film layers have a layered structure.

As shown in FIGS. 1 to 4, the composite film affixing apparatus 1 according to the present embodiment for forming the film affix FFY comprises an extrusion section 10 for molding the film F through extrusion molding, Wow; A cutter 20 for cutting film knitting yarn FY cut at even intervals by cutting a cutter blade 21 disposed at regular intervals in the extruded film yarn F; A stretching portion 30 for stretching the film yarn FY while heating; And a bending portion 50 for folding both edges of the film yarn FY stretched by the stretching portion 30 inward to form a film affix FFY in which both edges of the film yarn FY are folded inward do.

The extrusion die 10 is provided with an extrusion die 11 having a straight discharge port and a water tank 12 is disposed under the extrusion die 11 to form a film The polymer P in the form of a sheet is rapidly cooled while passing through the water tank 12 and is formed into a flat film F.

3, the planar film F formed by the extrusion portion 10 is conveyed in the longitudinal direction by the conveying rollers R, and a plurality of cutting blades 21 formed on the cutting portion 20, So that the film yarn FY is formed.

The film yarn FY molded in the cutter 20 passes through the stretching part 30 and the film yarn FY is pulled in the longitudinal direction by the conveying roller R and is wound around the stretching part 30 ), And is stretched in a form having a predetermined thickness and width, and the structure is stabilized.

In the present invention, for example, the stretching machine 30 may be constituted of an oven-type (not shown) stretching method in which heated hot air is applied to a film yarn FY pulled in the longitudinal direction by a conveying roller R as shown in Figs. 1 and 2 A primary stretching machine 31 and a film yarn FY which has been subjected to primary drawing in the primary stretching machine 31 are brought into close contact with a heating plate 32a protruding in a curving manner and the film yarn FY And a heat plate type secondary stretching machine 32 for stabilizing the structure of the film yarn FY.

Therefore, the film yarn FY is uniformly passed through the primary stretching machine 31 and the secondary stretching machine 32 in order, and the tissue is stabilized and stabilized.

At this time, the stretching conditions including the stretching temperature and time, the stretching length and the thickness of the film yarn FY may be selected depending on the material and thickness of the film yarn to be stretched.

Each stretched film yarn FY passing through the stretching portion 30 is formed into a film affixed FFY having its edges folded inward as it passes through the bending portion 50.

The bending portion 50 may be formed by various types of bending portions including conventional yarn guides.

In this embodiment, as shown in FIG. 4, it includes a bending guide 51 formed with a bending groove 52. The bending groove 52 has a relatively narrow width than the film yarn FY, The yarn FY forms a film affix FFY whose both side edges are folded inward by interference with the inner wall 52a of the bending groove 52 while individually passing through the bending grooves 52 of the bending guide 51 do.

The bent groove 52 formed in the bending guide 51 may be a triangular shape as shown in the figure, a trapezoidal shape, a 'C' shape, an O shape, or the like in which the edge of the film yarn is inwardly bent through the side wall. Depending on the application, the enemy can be selected and used.

The film affix FFY formed by passing through the bending portion 50 and folded inward at its both side edges is wound around each bobbin 61 provided in the winding portion 60 individually.

In this embodiment, the bending guide 51 of the bending portion 50 is configured to reciprocate left and right along the guide groove by the rotation of the guide shaft. As shown in Fig. 4A, the bending guide 51 is provided with a rotating guide shaft And the film affixing (FFY) is uniformly wound on the bobbin 61 of the take-up part 60.

4C, the bobbin 61 of the winding unit 60 is placed on the bobbin 61. The bobbin 61 is wound on the bobbin 61 by heating the film affixing FFY, The film affix FFY wound on the film web FFY is also hot-pressed by the heated hot press roller 62.

Of course, even if the hot roller is replaced with a cold roller or a hot roller is not provided in the winding section, it is possible to produce a film affix with a basic shape. However, as in the present embodiment, (FFY) having a good shape stability can be produced by hot pressing the film affix (FFY) wound on the film affix (FFY).

When the film affix FFY wound on the bobbin 61 by the hot press roller 62 is hot-pressed, the inward folded portion of the film affix FFY is thermally fixed, The development of the folded portion is prevented during the weaving process of the weft knitting machine, so that the improved weaving stability is secured.

On the other hand, as described above, the film affix (FFY) formed by such a device has excellent strength and flexibility due to mutual complementary action between the film layers forming the layered structure in the relation that the film layers have a layered structure, It is difficult to smoothly weave because the flexibility is somewhat low.

Of course, if the thickness of the film yarn forming the film affix is made thinner, the flexibility is somewhat secured, but this is not a preferable solution because it causes a decrease in durability including strength.

In order to overcome this problem, in the present invention, a splice portion SP is formed at a part of the width of the film yarn FY forming the film affix FFY, and a slit portion SL And the split portion SP are formed to be divided.

The film affix FFY formed such that the slit portion SL and the splittable portion SP are divided as described above is improved by the complementary action of the slit portion SL having excellent durability and the splittable portion SP having excellent flexibility, It has flexibility and durability while possessing superior fabricability due to flexibility.

To this end, as shown in FIGS. 1, 2 and 5, in the present embodiment, a part of the length of the film yarn FY entering the bending part 50 in front of the bending part 50 A three-line forming portion 40 for entering the three-line lines CL in the longitudinal direction is disposed by entering the blades 41a-a.

The truncated-line forming unit 40 includes a truncated section 41a in which a plurality of trestle blades 41a-a are spaced apart from each other, and a non-trestle section 41b in which a truncated-truncated- ).

As shown in FIG. 5C, the cutting inserts 41a-aa protrude at equal intervals in each of the three-cut blades 41a-a formed in the cut section 41a of the rotary drum 41. [

5A and 5B, a plurality of strips 41a-a of the three streaks 41a-a are formed in a part of the width of the film yarn FY moving in the longitudinal direction along the streak section 41a formed on the rotating drum 41, aa is periodically cut to form three lines CL of a predetermined length continuously. As a result, a split portion SP formed with three lines CL of a predetermined length is formed on a part of the width of the film yarn FFY And a film yarn FY is formed in the remaining width in the form of a non-cut slit SL.

In the present invention, for example, the formation ratio of the split portion SP and the slit portion SL is 2: 1.

1: 1, 3: 1, 1: 1, 2: 1, 1: 2, etc. It is possible to carry out various deformation.

Through this process, the film yarn FY formed so as to divide the split portion SP and the slit portion SL is bent while being passed through the bending portion 50 to be formed into the film affix FFY, And is wound on the bobbin 61 of the winding section 60 while being pressed by the roller 63 by hot pressing.

As described above, the slit portion SL and the splittable portion SP are formed so as to be divided, and the hot sliced film affix FFY is formed by the slit SL having excellent durability and the splittable portion SP having excellent flexibility Due to its complementary action, it has flexibility and durability while having excellent fabricability due to its enhanced flexibility, so that stable weaving is possible through a circular loom.

1. Film Affixing Device
10. Extrusion part 11. Extrusion die
12. Tank
20. Foundation Foundation 21. Foundation Day
30. Opening section 31. Oven type primary stretching machine
32. Thermo plate type second stretching machine 32a. Heating plate
40. Three wire forming part 41. Rotating drum
41a. Section 41a-a. Three Blades
41a-aa. Section. Non-verse section
50. Bending section 51. Bending guide
52. Bending grooves 52a-a. My side
60. Winding part 61. Bobbin
62. Guide Guide 63. Hot pressing roller
R. Feed Roller F. Film
FY. Film company FFY. Film affix
P. Polymer CL. Three lines
SL. The slit part SP. Split portion

Claims (7)

An extrusion part for forming a film sheet through extrusion; A cutter for cutting the extruded film sheets at regular intervals to form film yarns; A stretching portion for stretching the film yarns while heating; A bending portion for bending both edges of each film yarn stretched by the stretching portion inwardly to form a film affixation in which both edges of the film yarn are folded inward; And a winding portion winding the film affix formed at the bent portion onto the bobbin,
In the front of the bent portion, a three-line forming portion for forming three lines in the longitudinal direction by cutting the bundle blades into a part of the width of the film yarn moving in the longitudinal direction,
And a slit part in which three lines are formed and a slit part in which no dashed lines are formed are formed in the film yarn which is formed by moving the edge of the film yarn, Film affix manufacturing apparatus. [2] The apparatus of claim 1, wherein the stretching unit comprises: a primary stretcher for stretching the film yarns while heating; And a secondary stretcher for stabilizing the structure of the stretched film yarn to prevent shrinkage,
The three-wire forming portion is disposed between the first stretching portion and the second stretching portion, and the film yarn in which the split portion and the slit portion are divided in the three-wire forming portion is passed through the secondary stretching machine to stabilize the structure to prevent shrinkage Wherein the composite film is produced by a process comprising the steps of: The bobbin of claim 1, wherein the winding portion is provided with a hot pressing roller for heating and pressing the film affixed to the bobbin, the hot affixed film affixed to the bobbin of the winding portion is hot- Wherein the first and second elastic members are thermally adhered to each other. [2] The apparatus as claimed in claim 1, wherein the truncated-line forming unit comprises a truncated drum having a truncated section in which a plurality of truncated trunnions are formed in a width direction and a truncated section in which a truncated- Film affix manufacturing apparatus. [Claim 4] The method of claim 4, wherein the outer circumference of the triangular blades is formed with protruded cut-outs at equal intervals, and the cut-outs are periodically cut into a part of the width of the film yarn moving in the longitudinal direction along the cut- Characterized in that three wavy lines of a predetermined length are formed in a part of the width of the film yarn by periodic infiltration of three intercepts. Forming a film yarn by longitudinally cutting the extruded film sheet;
Stretching the film yarn while heating the film yarn;
Forming three split lines of a predetermined length in a part of the width of the stretched film yarn fed in the longitudinal direction so as to form a splitted portion and a non-split slit portion in which three split lines are formed;
Bending inwardly the opposite edges of the film yarn in which the slit portion and the split portion are formed to form a film affix with both edges inwardly folded; And
And a winding step of winding the film affix to the bobbin. [7] The method of claim 6, wherein the film affixed to the bobbin is hot-pressed by a hot press roller to thermally adhere the folded portion by hot pressing.

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