KR100208538B1 - Extrusion and extension apparatus for film manufacturing - Google Patents

Abstract

The present invention provides a method for producing an extrusion and stretching apparatus for film production, in particular, in manufacturing a breathable film, from winding a finished product film (F) to rolls (650,650 ') in one apparatus. To make good quality film faster and easier.

Description

Extrusion and stretching apparatus for film production

The present invention relates to an extrusion and stretching apparatus for film production, and more particularly, to an extrusion and stretching apparatus for film production that can be performed at a time through a consistent process from the supply of raw materials to the production of finished film.

The film produced in the apparatus according to the present invention is mainly used in infant diapers or women's sanitary napkins, and serves to allow air to pass through without passing moisture.

Conventionally, a plurality of devices have to be used to produce a film that serves the above role. That is, a process of extruding a film having a predetermined thickness and width from a raw material is performed, and the process of stretching the film thus produced to a desired thickness again in a real product is performed in a separate apparatus. Then, if necessary, a process of forming embossing is performed again in a separate device, and printing is performed on one side or both sides of the film according to the type of product in which the film is used. As such, the film finished up to the printing process is rolled up by a predetermined length on a roll. On the other hand, in addition to the above-described process, a corona process for forming the roughness of the film surface at a constant value is also required if necessary.

However, when the film is produced using the conventional method as described above, there are the following problems.

That is, a device for performing each process of producing a film is made separately, so to perform each process, the film must be moved to a device for the next process with the film wound on a roll. In other words, the film produced through the extrusion process is wound on a roll and moved to a device for the next stretching process. After the stretching process, the film is rolled again and moved to the embossing process or the printing process, and all finished products are also rolled and stored or shipped.

As such, each process for producing the film is carried out in a separate device, so the process of winding and unwinding the film on a roll is repeated in each device, and the process is produced because the pretreatment process for each process is repeated. In this case, a lot of material loss occurs, resulting in an increase in cost, which is undesirable in terms of productivity. In addition, in order to move such a film to each device according to the process, a separate moving means is required, so that the overall equipment is increased, which makes it difficult to efficiently use the workplace space.

Therefore, an object of the present invention is to solve the problems of the prior art as described above, to provide a device that can be performed at a time through a consistent process from the supply of the raw material to the production of the finished film in producing the film. .

1 is a schematic view showing the overall configuration of an extrusion drawing apparatus for producing a film according to the present invention.

2 is a schematic side view showing the configuration of an extruded part of an extrusion and stretching apparatus for film production according to the present invention;

3 is a perspective view showing the main part of the traversing machine of the extrusion drawing device for producing a film according to the present invention.

Figure 4 is a schematic plan view showing the configuration of the traversing machine provided in the extrusion drawing device for producing a film according to the present invention.

Figure 5 is a schematic side view showing the configuration of the supply unit of the extrusion drawing apparatus for producing a film according to the present invention.

6 is a perspective view showing that both end surfaces of the film are cut out from the supply portion of the extrusion and stretching apparatus for manufacturing a film according to the present invention.

Figure 7 is a schematic cross-sectional view showing the configuration of the stretched portion and the embossed portion of the extrusion drawing apparatus for producing a film according to the present invention.

8 is a plan view showing the main portion of the extrusion drawing device for producing a film according to the present invention.

9 is a perspective view showing the mounting of the film on the roller at the beginning of work in the extrusion drawing apparatus for manufacturing a film according to the present invention.

10 is a schematic block diagram showing the configuration of a printing unit and a winding unit of an extrusion drawing apparatus for manufacturing a film according to the present invention.

11 is an operating state diagram for explaining the operation of the winding unit of the extrusion drawing apparatus for producing a film according to the present invention.

12 is a schematic plan view for explaining that the extrusion unit of the extrusion drawing device for producing a film according to the present invention is operated.

* Explanation of symbols for main parts of the drawings

100: extruded portion 101: base

102: guide rail 103: slider

110: traversing base 111: traversing rail

112: traversing roller 120: support frame

122: driving pulley 123: belt

124: driven pulley 125: reducer

130: Hopper 131: Barrel

132: screw 133: raw material screener

134: extrusion head 136: neck

140: dice 200: supply unit

201: frame 210: first rolling roller

220: second rolling roller 230,240,250: cooling roller

254: cutting knife 255: tension roller

260 corona unit 300 stretched part

301: frame 310,312,314,316: preheat roller

320,325 Stretching roller 330,335 Dry roller

340,342,344: aging roller 350: cooling roller

360: Chain 361: Chain Guide Motor

362: chain guide roller 400: embossed portion

405,406: height adjustment roller 410: pressure roller

420: embossing roller 430: cooling roller

450: ballo cylinder unit 500: printing unit

502: inflow roller 511: copper plate roller

515: Pressing roller 540,540 ': Drying chamber

550: auxiliary drying chamber 600: winding

620,630: Belo cylinder unit 650,650 ': Roll

Extruder for forming a film by moving the raw material supplied to achieve the object of the present invention as described above using a screw in the barrel while mixing to extrude a die in a predetermined width and thickness; A pair of rolling rollers that are pulled while pressing the film extruded from the extruder to a predetermined thickness and guided to the next step, a plurality of cooling rollers for cooling the film passing through the rolling rollers, and the cooling rollers. A supply unit configured of a corona unit for surface treatment using high frequency so that the surface of the passed film has a constant roughness; A drawing portion composed of a plurality of rollers whose surface temperature is maintained by the heat medium oil and each rotates at a specific speed; The pressure roller is operated hydraulically to form an embossing on the film surface made of a constant thickness and width in the stretching portion, and the embossing roller is provided with a plurality of embossing protrusions on the surface in close contact with the pressure roller to form an embossing on the film surface. Embossing portion consisting of; A printing unit capable of selectively performing printing on the upper and lower surfaces of the film and completely drying the printing ink on the film after printing; It is provided with an extrusion and stretching apparatus for producing a film comprising a; winding portion for winding the finished film by a predetermined length on the roll passed through the printing unit.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the extrusion drawing device for producing a film according to the present invention will be described in detail.

First, the extrusion drawing apparatus for manufacturing a film according to the present invention is composed of an extrusion part 100, a supply part 200, a drawing part 300, an embossing part 400, a printing part 500, a winding part 600.

The extrusion unit 100 serves to form a film (F) by extruding a predetermined width and thickness in the die 140 by moving while feeding the supplied raw material using the screw 132 in the barrel 131. It is. In other words, the slider 103 which is interlocked with the guide rail 102 provided at the bottom of the workplace is provided on the bottom surface of the base 101. As such, the extrusion part 100 is located at a position corresponding to the supply part 200 which will be described below when the base 101 is moved left and right along the guide rail 102, and otherwise, FIG. As shown in the figure is to be out of the corresponding position in the supply unit 200.

In addition, the base 101 is provided with a traversing machine for continuously reciprocating the dice 140 to the left and right for a predetermined distance during the operation so that the film F extruded from the dice 140 has a constant thickness.

The traversing machine is composed of a traversing base 110, a traversing rail 111, a traversing roller 112, a drive motor 113, a cam 118, a drive bar (119).

The traversing base 110 is installed so as to reciprocate a certain distance on the base 101, the support frame 120 is provided on the upper end. Four corners of the traversing base 110, as shown in Figure 3, is provided with a traversing roller 112, respectively. The traversing roller 112 as described above is guided along the traversing rail 111 provided in the base 101 to reciprocate the traversing base 110. And, as shown in Figure 4, the drive motor 113 is provided on one side of the upper surface of the base 101 to reciprocate the traversing base 110. The reduction gear 116 for shifting the driving force of the driving motor 113 is connected to the output shaft of the driving motor 113 and is provided on the upper surface of the base 101.

In addition, the output shaft 117 of the reducer 116 is provided with a cam 118, and is interlocked with the output shaft 117 of the reducer 116. The cam 118 has a shape in which the traversing base 110 is reciprocated once and left every time the cam 118 is rotated once.

The cam 118 is connected to the traversing base 110, and a driving bar 119 for moving the treversing base 110 in the direction of the arrow of FIG. 12 is connected to the rod bearing 119 '. . The other side of the driving bar 119 is also provided with a rod bearing 119 'for connecting the driving bar 119 and the traversing base 110 to each other.

On the other hand, the traversing base 110 is provided with a support frame 120. The upper end of the support frame 120 is provided with a barrel 131 for melting and moving while mixing the raw materials. The screw 132 is rotatably installed in the barrel 131. In addition, a hopper 130 for supplying a raw material is provided in communication with the inside of the barrel 131 in an upstream portion of the barrel 131. One side of the support frame 120 is provided with a drive motor (not shown) for driving the screw 132, a drive pulley 122 for transmitting the rotational force of the drive motor to the screw 132 and A driven pulley 124 and a belt 123 are provided. The driven pulley 124 is connected to a reducer 125 that controls the rotational speed of the screw 132. On the other hand, the downstream of the barrel 131 is provided with an extrusion head 134, the extrusion head 134 is connected to the die 140 through the neck 136. The die 140 is provided with a heater rod (not shown) therein to maintain the temperature of the raw material supplied from the barrel 131. The die 140 has a width slightly shorter than that of the rolling rollers 210 and 220 which will be described below, and a discharge slit (not shown) is formed along the width so that the raw material is discharged through the discharge slit. Extruded film (F) of a constant width is formed.

Reference numeral 133 denotes a raw material screen device.

The supply unit 200 is provided with a frame 201 at both ends thereof, and various parts are installed between the frames 201. First, a pair of rolling rollers 210 and 220 are provided to pull the film F extruded from the extruder 100 to a predetermined thickness while guiding the film F to the next step. That is, the first rolling roller 210 and the second rolling roller 220 are provided side by side on the frame 201 to pull the film F extruded from the die 140. The surface of the first rolling roller 210 is made of steel, the cooling water flows in a double jacket (not shown) provided therein. In addition, two auxiliary cooling touch rollers 212 and 213 are provided in the frame 211 on which the first rolling roller 210 is installed. The auxiliary cooling touch rollers 212 and 213 are connected to the air cylinders 212A and 213A and are detachable to the first rolling roller 210. That is, the auxiliary cooling touch rollers 212 and 213 are in close contact with the first rolling roller 210 by the operation of the air cylinders 212A and 213A to cool the first rolling roller 210. Reference numeral 215 denotes an air cylinder for moving the frame 211 to adjust a distance from the second rolling roller 220.

The surface of the second rolling roller 220 is siliconized, and the coolant flows through a double jacket (not shown) provided therein. And the winding roller 225 is provided on the drive lever 226 hinged to the frame 201 to increase the length of the film (F) is wound on the second rolling roller 220 to increase the cooling effect. Reference numeral 225A denotes an air cylinder, and 211S and 201S denote stay shafts which connect and support the frames 210 and 201.

The frame 201 is provided with three cooling rollers 230, 240, and 250 in order to cool the film F passing through the rolling rollers 210 and 220. That is, the first cooling roller 230 is installed on the frame 201 to cool the guide film F passing through the take-up roller 225 and the second cooling roller 240 is the first cooling roller. It is provided at a position lower than 230 and installed to guide and cool the film F passing through the first cooling roller 230. In addition, the third cooling roller 250 is installed at a position higher than the second cooling roller 240 and installed to guide and cool the film F passing through the second cooling roller 240.

On the other hand, while passing through the third cooling roller 250, both ends of the film (F) is cut so that the width thereof is constant. To this end, a cutting knife 254 is installed on the frame 201 corresponding to the third cooling roller 250. In addition, guide grooves 251 are formed at both ends of the third cooling roller 250 to guide the cutting knife 254. And, in cutting the film (F) using the cutting knife 254 to maintain the tension of the film (F) wound on the third cooling roller (250) to a certain degree to complete the above. The tension roller 255 is installed in close contact with the third cooling roller 250. Reference numeral 256 is a lever, and 257,258 are guide rollers.

In addition, a corona unit 260 is installed at a position adjacent to the third cooling roller 250 so that the surface of the cooled film F has a constant roughness while passing through the plurality of cooling rollers 230, 240, 250. The corona unit 260 is to control the surface roughness of the film (F) by irradiating the film (F) with a high frequency, for this purpose to guide the film (F) through the guide roller 258 while performing a corona treatment A corona roll 261 and top and bottom corona rollers 263 and 264 are provided. Here, the upper corona roller 263 is for corona treatment on the upper surface of the film (F), and the lower corona roller 263 is for corona treatment on the upper surface of the film (F). Reference numeral 261 denotes a corona unit case, 266 a guide roller, and 262 a dignity handle.

The constitution of the stretching unit 300 which stretches the film F having the corona treatment as described above to form a breathable film is as follows.

That is, the frames 301 are vertically installed at both ends. Between the frame 301 of both ends is provided with a plurality of rollers are driven at different speeds by a separate drive motor (M), respectively.

First, first, second, third and fourth preheat rollers 310, 312, 314 and 316 are installed in the frame 301. The preheating rollers 310, 312, 314, and 316 preheat the film F transferred from the supply unit 200. Both ends of the first preheat roller 310 are rotatably connected to the frame 301. The first preheat roller 310 is rotated by a separate drive motor (M).

The film F preheated by the first preheat roller 310 is transferred to the second preheat roller 312. The second preheat roller 312 is installed at a position on the frame 301 lower than the first preheat roller 310 and passes through the centers of the first preheat roller 310 and the second preheat roller 312. The length of the virtual orthogonal line orthogonal to the vertical line is smaller than the radius of the first and second preheat rollers 310 and 312.

The film F preheated by the second preheat roller 312 is transferred to the third preheat roller 314. The # 3 preheat roller 314 is provided at a position on the frame 301 higher than the first preheat roller 310. Then, the film (F) preheated in the third pre-roller 314 is transferred to the fourth pre-roller 316 again, the fourth pre-roller 316 is lower than the third pre-roller 314 It is provided in the position on the frame 301. The distance between the preheating rollers 310, 312, 314, and 316 (the length of the orthogonal line) is smaller than the radius of each of the preheating rollers 310, 312, 314, and 316, similarly to the first preheating roller 310 and the second preheating roller 312. A double jacket is provided inside the preheating rollers 310, 312, 314, and 316, and the surface temperature of the preheating rollers 310, 312, 314, and 316 is controlled while the heat medium oil flows through the double jacket.

The first drawing roller 320 is installed in contact with the fourth preheating roller 316. The first drawing roller 320 is installed to be elevated up and down of the frame 301. The lifting and lowering of the first drawing roller 320 is performed by the air cylinder 320A installed in the frame 301. The position during the operation of the first drawing roller 320 is about the same as the delay of the fourth preheating roller 316.

The second drawing roller 325 is installed in contact with the first drawing roller 320. The second stretching roller 325 is fixedly installed at a predetermined position of the frame 301, and the position thereof is almost the same as the position of the first stretching roller 320 during operation. The first and second stretching rollers 320 and 325 are driven by separate driving motors M, respectively, and rotated at a relatively higher speed than the preheating rollers 310, 312, 314 and 316. Extend it. A double jacket is provided inside the drawing rollers 320 and 325, and the surface temperature of the drawing rollers 320 and 325 is controlled while the heat medium oil passes through the inside of the double jacket.

The film F passing through the second stretching roller 325 passes through the first and second dry rollers 330 and 335. The first dry roller 330 is installed at a position higher on the frame 301 than the second stretching roller 325, and a separate driving motor M is connected and installed. The second dry roller 335 is installed at a position on the frame 301 lower than the first dry roller 330, and a separate driving motor M is connected and installed. Such dry rollers 330 and 335 serve to straighten the film F stretched from the stretching rollers 320 and 325 at a relatively high temperature. Such dry rollers 330 and 335 are provided with a double jacket therein, and the heat medium oil flows into the double jacket to control the surface temperature of the dry rollers 330 and 335.

The film F passing through the second dry roller 335 passes through the first, second and third aging rollers 340, 342 and 344. The first aging roller 340 is installed at a position on the frame 301 relatively higher than the second dry roller 335 and a separate drive motor (M) is connected and installed. The second aging roller 342 is installed at a position on the frame 301 which is relatively lower than the first aging roller 340, and a separate drive motor M is connected and installed. In addition, the third aging roller 344 is installed at a relatively higher position than the second aging roller 342 is also provided with a separate drive motor (M) connected. Such aging rollers (340, 342, 344) are also provided with a double jacket therein, the heat medium oil flows therein. In addition, the surface temperature of the aging rollers (340, 342, 344) is relatively lower than the dry rollers (330, 335), the rotational speed is also relatively slow.

The film F passing through the third aging roller 344 passes through the cooling roller 350. The cooling roller 350 is connected to both ends of the frame 301, and a separate driving motor M is connected to the frame 301. Such a cooling roller 350 is also provided with a double jacket, this is to control the surface temperature of the cooling roller 350 while the cooling water below the atmospheric temperature flows.

On the other hand, the eleven rollers other than the 3rd aging roller 344 with which the extending | stretching part 300 is provided as mentioned above are equipped with the pressure roller P, respectively. The pressure roller P is lifted by the air cylinder PA and is in close contact with each of the eleven rollers so that the eleven rollers accurately guide the film F.

In addition, the rollers provided in the drawing unit 300 are provided at both ends of the sprockets SP for guiding the chain 360 together with the rollers provided in the embossing unit 400 to be described below. In this way, the chain 360 provided in the sprockets SP provided at both ends of the roller forms a single bellow. The chain 360 is guided by a separate chain guide roller 362 at the bottom of the frame 301. In addition, a chain guide motor 361 for driving the chain 360 is provided at one side of the lower end of the frame 301. Such a chain 360 is intended to allow the film F supplied from the supply part 200 to be wound on rollers provided in the stretching part 300 in the beginning of work.

Meanwhile, the film F passing through the guide roller 266 of the supply part 200 passes through the wrinkle preventing expander roller 305 provided in the frame 301 before being guided to the first preheat roller 310. Then it passes through the guide roller 306 again. And, if the stretching process is not necessary according to the type of film (F) to be produced, a plurality of guide rollers (370,371,372,373,374,375,377) to directly transfer the film (F) to the cooling roller 350 without passing through the roller for the stretching process. ) Is installed at the top of the frame 301.

The embossing unit 400 is to form an embossing on the surface of the film (F) made of a constant thickness and width in the stretching unit 300, the pressure roller 410 is operated hydraulically and a plurality of embossing protrusions ( Not shown) is provided with an embossing roller 420 is provided.

The pressure roller 410 is provided on the frame 401 so that the surface thereof is treated with a rubber and is liftable by the hydraulic cylinder 410A. The surface of the embossing roller 420 is treated with steel, and a plurality of embossing protrusions are formed. Wherein the film (F) is passed between the pressing roller 410 and the embossing roller 420, for this purpose, the height adjusting rollers (405, 406) are provided before and after the pressing roller (410) and embossing roller (420), respectively. It is. That is, height adjustment rollers 405 and 406 are installed in the frame 401 so that the film F moves horizontally toward the contact point of the pressure roller 410 and the embossing roller 420.

In addition, a cooling roller 430 for cooling the film F passed between the embossing roller 420 and the pressure roller 410 to preserve the shape of the embossing formed in the previous process is installed in the frame 401. have. The cooling roller 430 is provided with a separate drive motor (M) is connected. And the cooling auxiliary touch roller 435 is provided so that the cooling roller 430 the film (F) more wound. The cooling auxiliary touch roller 435 is operated by the air cylinder 435A and is detached from the cooling roller 430.

An expander roller 440 is provided on the frame 401 to prevent wrinkles on the film passing through the cooling roller 430. On the other hand, a bellow cylinder unit 450 is provided to make the tension of the film F passed through the embossing unit 400 to the printing unit 500 to be described below constant. The bellows cylinder unit 450 is composed of a bellows 452 having a plurality of guide rollers 455, 456, 457, and 458 operated by the bellows cylinder 451, and a bellows 453 installed on the bellows 452. . Such a bellows cylinder unit 450 controls the tension of the film F delivered to the printing unit 500, and at the same time, transfers the tension value of the film F detected therefrom to the printing unit 500 so as to transmit the film F. To control the guide speed.

The printing unit 500 is configured to selectively print on the upper and lower surfaces of the film (F), it is configured to completely discharge the printing ink on the film (F) after printing. That is, an inflow roller 502 for receiving the film F transmitted through the embossing unit 400 is provided on one side of the frame 501. And the upper side of the frame 501 is provided with a plurality of guide rollers (505, 506, 507) for forward printing, the anti-wrinkle roller 508 for preventing wrinkles in the film (F) before printing is provided. An angle adjusting roller 509 for guiding the film F passed through the anti-wrinkle roller 508 is provided. An ink tray 510 containing ink used for printing is provided, and a copper plate roller 511 having a printing copper plate (not shown) is provided above the ink tray 510. Then, the pressure rubber roller 515 for bringing the film F into close contact with the printed copper plate of the copper plate roller 511 is provided to be capable of lifting up and down the copper plate roller 511. Reference numeral 516 denotes an ink tray adjustment handle, and 517 denotes an ink remover.

In addition, a plurality of guide rollers 530, 531, 532, 533, 534, 535 for reverse printing and an anti-wrinkle roller 536 are provided at the bottom of the frame 501 to prevent wrinkles on the film F before printing. In addition, the frame 501 is provided with an angle adjusting roller 537 for guiding the film passing through the anti-wrinkle roller 536 to the copper plate roller.

On the other hand, above the copper plate roller 511 is provided with a forward drying chamber 540 and a reverse drying chamber 540 'for drying the printing ink of the film F once printed. The forward drying chamber 540 is provided with a plurality of guide rollers 541 for guiding the film F in the forward printing, and the reverse drying chamber 540 'is provided with the film F in the reverse printing. A plurality of guide rollers 542 for guiding are provided at positions facing each other. The drying chambers 540 and 540 'are provided with a heater (not shown) and a fan unit (not shown) to spray hot air to the film F to dry the printing ink.

The auxiliary drying chamber 550 is provided above the drying chambers 540 and 540 '. The auxiliary drying chamber 550 is provided with a plurality of guide rollers 551, 552, 553, 554, 555 for guiding the film F and a fan unit 556 for drying. The film F passing through the auxiliary drying chamber 550 is transferred to the winding part 600 through the guide roller 560.

The winding part 600 serves to wind the finished film F on the rolls 650 and 650 'by a predetermined length, and the configuration thereof is as follows.

The anti-wrinkle roller 605 which guides the film F through the guide roller 560 to prevent wrinkles is provided in the frame 601, and the multiple guide rollers 610, 611, 613, 614, 615, 617, 618, 619 are zigzag-type. It is provided to guide to. And between the one-side guide rollers (611,613) is provided with a bellow cylinder unit 620 for adjusting the tension of the film (F) to be transmitted. Reference numeral 621 denotes a bellows cylinder, 622 a bellows lever, and 623 a bellows roller. The bellows cylinder unit 620 is transmitted to a drive motor (not shown) that senses the tension of the guided film F and controls the rotational speed of the discharge drive roller 625 to be described below.

On the other hand, the discharge drive roller 625 is provided in the frame 601 in order to constantly adjust the tension of the film (F) passing through the guide roller 613. And the touch rubber roller 626 for guiding the film (F) in close contact with the discharge drive roller 625 is detachably attached to the discharge drive roller 625 by an air cylinder 627 and the operating lever 628. Is installed. The discharge driving roller 625 and the touch rubber roller 625 serves to pull the film (F) to have a suitable tension value.

The lower end of the frame 601 is provided with another bellow cylinder unit 630 to adjust the tension of the film (F) that is finally wound on the roll (650,650 '). Reference numeral 631 denotes a bellows cylinder, 632 a bellows lever, and 633 a bellows roller.

A continuous winding unit 640 is provided to wind the film F passing through the bellows cylinder unit 630 in rolls 650 and 650 'continuously for a predetermined length. Since the configuration of the continuous winding unit 640 is already known, a detailed description thereof will be omitted here, and only the reference numerals of the components will be described below. That is, reference numeral 641 denotes a support, 642 denotes a rotary plate, and 643 denotes a rotary shaft that serves as a rotation center of the rotary plate 642.

Then, the film is wound on the roll 650, the components to cut the film to continuously wound the film on the other roll (650 ') are as follows. That is, 660 is a cutting table, 661 is a lifting cylinder, 665 is a lifting table, 667 is a cutting air cylinder, 668 is a hot wire lever rotated by the air cylinder 667, 669 is a hot wire for cutting the film (F). .

Then, the components of the winding control unit 670 to adjust the position of the film (F) to be wound in accordance with the amount of the film (F) wound on the roll (650,650 ') are as follows. Reference numeral 670 'is a winding lever installed on the frame 601 to be rotatable about the rotation axis 671, 672, 673, 674 is a guide roller for guiding the film F guided through the guide roller 619', 675 is It is a winding roller which finally delivers a film to a roll. Reference numeral 601S denotes a stay shaft and 645 denotes a support roller.

Hereinafter, the operation of the extrusion drawing apparatus for producing a film according to the present invention having the configuration as described above will be described.

First, a raw material for manufacturing the breathable film F is supplied into the barrel 131 through the hopper 130. As such, the raw material supplied into the barrel 131 is mixed while being moved to the downstream portion of the barrel 131 by the rotation of the screw 132. At this time, the screw 132 is rotated by a drive motor provided in the support frame 120. That is, the rotational force of the driving motor is transmitted to the reducer 125 through the pulleys 122 and 124 and the belt 123, and the transmitted rotational force is controlled by the speed reducer 125 and transmitted to the screw 132. do.

The raw material delivered to the downstream portion of the barrel 131 by the rotation of the screw 132 is mixed and melted while passing through the raw material screener 133 and transferred to the extrusion head 134. The raw material delivered to the extrusion head 134 is delivered to the die 140 through the neck 136. The raw material thus melted and delivered is discharged through the discharge slit of the die 140. In this case, the pressure at which the raw material is discharged is generated by rotating the screw 132 in the barrel 131. On the other hand, during the discharge of the raw material through the discharge slit, the die 140 is repeatedly reciprocated in the longitudinal direction of the rolling rollers (210, 220) by the operation of the traversing machine. When the die 140 is moved as described above and the film F is extruded, the entire thickness of the film F is uniformly formed.

The raw material discharged through the discharge slit as described above becomes a film F having a predetermined width and thickness, and the film F passes between the first and second rolling rollers 210 and 220. At this time, the first and second rolling rollers 210 and 220 are pulled while pressing the film (F). The surface temperature of the first and second rolling rollers 210 and 220 is controlled while the coolant flows through the double jacket provided therein. In addition, two sub-cooling touch rollers 212 and 213 are brought into contact with the first rolling roller 210 to cool the surface thereof. In addition, the winding roller 225 increases the cooling effect by lengthening the length of the film F wound on the surface of the second rolling roller 220.

The film F passed between the first and second rolling rollers 210 and 220 and guided by the winding roller 225 is cooled while passing through the first, second and third cooling rollers 230, 240 and 250.

In the third cooling roller 250, both ends of the film F are cut off. That is, both ends of the film F which are discharged from the discharge slit of the die 140 and do not form a straight line are arranged. This will be described in more detail as follows. That is, the tension roller 255 in contact with the third cooling roller 250 makes the film F passing through the third cooling roller 250 contact the surface of the third cooling roller 250 so that the film ( The tension of F) is maintained. In this state, when the cutting knife 254 is located in the guide grooves 251 formed at both ends of the third cooling roller 250, the film guided by the third cooling roller 250 passes by. Both ends of (F) are excised.

As described above, the film F having both ends cut off is transferred to the corona unit 260 through two guide rollers 257 and 258. That is, the upper surface of the film F passes through the upper corona roller 263 of the corona unit 260 and is surface treated by the high frequency irradiated from the corona 261. The surface treatment is performed by the high frequency radiated from the corona group 261 while passing through the corona roller 263.

The film F having the corona treatment as described above is guided by the guide roller 266 to pass the expander roller 305 for preventing wrinkles of the stretching unit 300, and then through the guide roller 306 to preheat the first preheat. It is delivered to the roller 310. The film F, once delivered to the first pre-roller 310, is subsequently preheated while being guided along the second, third and fourth pre-rollers 312, 314, 316. On the other hand, looking at the mounting of the film (F) transferred from the supply unit 200 to the stretching unit 300 at the beginning of the operation as follows. That is, as shown in FIG. 9, both ends of the end portion of the film F supplied from the supply unit 200 are hooked to the chain 360 to operate the rollers of the stretching unit 300 and simultaneously drive the chain 360. When the sprocket SP is provided at both ends of the roller guides the chain 360 to be wound around the first preheat roller 310 and the second preheat roller 312, and then continues to the stretching portion 300. It is wound on the rollers provided so that the continuous work is made.

As described above, the film F passing through the fourth preheat roller 316 passes through the first stretching roller 320 and the second stretching roller 325 in order. The first and second stretching rollers 320 and 325 are rotated at a relatively higher speed than the preheating rollers 310, 312, 314 and 316, thereby stretching the preheated film F by the speed difference. The film F passing through the first and second stretching rollers 320 and 325 is transferred to the first and second dry rollers 330 and 335. On the other hand, the first drawing roller 320 is movable up and down along the frame 301 by the air cylinder (320A) is in close contact with the second drawing roller 325 during the operation, when not in operation The second drawing roller 325 is separated.

The first and second dry rollers 330 and 335 serve to straighten the stretched film F in the stretching rollers 320 and 325, and the surface temperature thereof is higher than that of the first and second stretching rollers 320 and 325. Is kept high. As such, the film F passing through the first and second dry rollers 330 and 335 passes through the first, second and third aging rollers 340, 342 and 344 in order. Such aging rollers (340, 342, 344) has a relatively lower temperature than the dry rollers (330, 335) and the rotation speed is also slow. Such aging rollers (340, 342, 344) serves to mature to maintain the shape of the stretched and unfolded film (F) as it is.

The film (F) aged in the aged rollers (340, 342, 344) is completely cooled while passing through the cooling roller (350). The cooling roller 350 has a cooling water below the atmospheric temperature flows therein. On the other hand, when the pre-heating, stretching, drying, aging and cooling process as described above is made of a breathable film, it is not necessary to perform the above process when you want to produce a general film other than the breathable film. Therefore, for this purpose, the film F passing through the corona unit 260 may be transferred directly to the cooling roller 350 through a plurality of guide rollers 370, 371, 372, 373, 374, 375, 376, and 377 provided on the top of the frame 301.

Then, the film F passed through the cooling roller 350 is transferred to the embossing portion 400 to form embossed convex on the surface. That is, the film F passing through the cooling roller 350 is guided by the height adjusting roller 405 to pass between the pressure roller 410 and the embossing roller 420. The height adjustment roller 405 serves to ensure that the film (F) is accurately maintained while being horizontally between the pressing roller 410 and the embossing roller 420. On the other hand, the pressure roller 410 is operated by the hydraulic pressure to bring the film (F) in close contact with the surface of the embossing roller 420. In this case, the film F is in close contact with the surface of the embossing roller 420 by the pressing roller 410, and the embossing is formed on the film F by the embossing protrusion of the embossing roller 420. Then, the film F passed between the pressure roller 410 and the embossing roller 420 is guided by the height adjusting roller 406 again and is transferred to the cooling roller 430.

The cooling roller 430 is for preserving the shape of the embossing formed in the previous step as it is, to maintain the surface at a low temperature to cool the film (F) formed embossing. The cooling auxiliary touch roller 435 is installed in contact with the cooling roller 430 to bring the film F into close contact with the cooling roller 430.

The film F passing through the cooling roller 430 passes through the expander roller 440, which serves to guide wrinkles on the film F once the embossing is formed. As such, the film F passing through the expander roller 440 is transferred to the bellows cylinder unit 450. The film F is guided by the guide rollers 455, 456, and 457 to pass through the bellows 453. At this time, the bellows cylinder 451 operates according to the tension of the film F detected by the bellows 453 to adjust the tension of the film F. FIG. Then, the data about the tension of the film (F) detected by the bellows 453 is transmitted to the printing unit 500 is used to control the roller rotation speed in the printing unit (500).

The film F passing through the bellows 453 is again transferred to the printing unit 500 via the guide roller 458. That is, it is extruded and stretched in the same process as described above to print on the film (F) formed with embossing.

To this end, first, the film F transferred from the bellows cylinder unit 450 is guided to the inflow roller 502. On the other hand, the surface to be printed is changed according to the direction in which the film (F) is wound on the inflow roller (502). That is, forward printing is performed when the film F is wound in the counterclockwise direction on the inflow roller 502, and reverse printing is performed when the film F is wound in the clockwise direction.

First, the forward printing is described. When the film F is wound around the inflow roller 502 in a counterclockwise direction, the film F is guided through the plurality of guide rollers 505, 506, and 507 in turn to the anti-wrinkle roller 508. The film F passing through the anti-wrinkle roller 508 passes through the angle adjusting roller 509 and passes between the copper plate roller 511 and the pressure roller 515. In this case, the printing of the printing copper plate provided in the copper plate roller 511 is selectively buried on the surface of the film (F) to perform printing. At this time, the ink supply to the printed copper plate is made through the ink tray 510 while the copper roller 511 rotates. As described above, the film F printed while passing through the copper roller 511 is transferred to the forward drying chamber 540. That is, while being guided along the plurality of guide rollers 541 provided in the forward drying chamber 540 is dried by the hot air generated by the heater and the fan unit.

The film F passed through the forward drying chamber 540 is transferred to the auxiliary drying chamber 550. The auxiliary drying chamber 550 is also provided with a plurality of guide rollers 551, 552, 553, 554, 555 for guiding the film F, whereby the film F is guided and dried by the fan unit 556. As such, the film F passing through the auxiliary drying chamber 550 is transferred to the winding part 600.

On the other hand, the reverse printing is described as follows. That is, when the film (F) is wound in the clockwise direction to the inflow roller 502, the film (F) is guided by a plurality of guide rollers (530, 531, 532, 533, 534, 535) provided in the lower end of the frame 501 to prevent wrinkles Guided by roller 536. The film F passing through the anti-wrinkle roller 536 is transferred to the copper plate roller 511 through the angle adjusting roller 537. The film F passing through the copper plate roller 511 is printed through the same operation as in the forward printing. Once printing is complete, the film F is directed to the reverse drying chamber 540 '. The reverse drying chamber 540 ′ is guided by a plurality of guide rollers 542 and dried by receiving hot air generated by a heater and a fan unit. As in the forward printing, the film F passing through the reverse drying chamber 540 ′ is transferred to the auxiliary drying chamber 550. As such, the film F passing through the auxiliary drying chamber 550 is transferred to the winding part 600 via the guide roller 560.

The film F passes through the anti-wrinkle roller 605 provided in the frame 601 of the winding part 600, and is zigzag guided by a plurality of guide rollers 610, 611, 613, 615, 616, 617, 618 and 619. Passed from top to bottom On the other hand, the film (F) is passed through the bellow cylinder unit (620,630) for adjusting the tension in the process guided by the guide rollers (610,611,613,615,616,617,618,619) from the top to the bottom of the winding part (600). In the first bellow cylinder unit 620, the tension in which the film F is supplied is adjusted, and in the following bellow cylinder unit 630, the tension wound on the rolls 650 and 650 'is adjusted. As such, the film F passing through the bellows cylinder unit 630 is transferred to the winding control unit 670 via the guide roller 619 and is provided on the winding control lever 670 ′ of the winding control unit 670. After the plurality of guide rollers (672, 673, 674) is finally wound on the roll (650, 650 ') through the winding feed roller (675). The winding control unit 670 is rotated in conjunction with the amount of the film (F) wound on the roll (650,650 ') that the film (F) is wound on the roll (650,650') past the winding roller (675) Will be adjusted.

On the other hand, if the film (F) is wound on the roll 650 by a predetermined length, the roll (650,650 ') that the film (F) is wound by rotating the rotating plate 642 provided on the support 641 Will change. That is, the roll 650 in which the film F is wound by the predetermined length is moved to the right side in the drawing, and the new roll 650 'is moved to the left side. At this time, the film F that is continuously supplied is cut by the heating wire 669 provided in the lifting platform 665 to be elevated along the cutting table 660. That is, while the lifting platform 665 is lowered by the cutting air cylinder 661, the film F cut between the winding roller 675 and the support roller 645 is cut out. Then, the film F cut by the hot wire 669 is attached to the new roll 650 'by the wind generated from the fan unit (not shown) and is continuously wound up.

Extrusion and stretching apparatus for producing a film according to the present invention as described in detail above in order to complete the process from mixing the raw material to winding the finished film in a roll in one device in the manufacture of a breathable film of a higher quality film There is an effect that can be produced more quickly and easily.

Claims (5)

An extruder configured to move the supplied raw materials while mixing with a screw in the barrel to extrude the die at a predetermined width and thickness to form a film; A pair of rolling rollers that are pulled while pressing the film extruded from the extruder to a predetermined thickness and guided to the next step, a plurality of cooling rollers for cooling the film passing through the rolling rollers, and the cooling rollers. A supply unit configured of a corona unit for surface treatment using high frequency so that the surface of the passed film has a constant roughness; A drawing portion composed of a plurality of rollers whose surface temperature is maintained by the heat medium oil and each rotates at a specific speed; Pressurized roller which is hydraulically operated to form embossing on the film surface made of constant thickness and width in the drawing section, and is provided with a plurality of embossing protrusions on the surface and is in close contact with the pressure roller to form embossing on the film surface. Embossing unit is configured; A printing unit capable of selectively performing printing on the upper and lower surfaces of the film and completely drying the printing ink on the film after printing; And a winding-up unit winding the finished film by a predetermined length on the roll by passing through the printing unit. According to claim 1, The extrusion unit is provided with a plurality of auxiliary cooling touch roller detachably installed on the surface of the rolling roller by the air cylinder to cool the rolling roller, the length of the film is wound on the rolling roller Film stretching extrusion stretching device characterized in that the winding roller to increase the cooling effect by longer. According to claim 1, wherein the stretching portion film extrusion extrusion device for producing a film, characterized in that each of the plurality of guide rollers for directly transferring the film does not need the stretching process to the embossing portion is installed on the top of the frame. According to claim 1, wherein the embossing portion is an extrusion drawing apparatus for producing a film, characterized in that further provided with a cooling roller for preserving the shape of the embossing formed while passing through the pressing roller and the embossing roller. According to claim 1, Extruded stretching apparatus for producing a film, characterized in that between the embossing portion and the printing portion is further provided with a bello cylinder unit for adjusting the tension of the film transferred from the embossing portion to the printing portion.

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