KR101721636B1 - High Temperature Single-Axis Precise Control Stretching Machine for Film - Google Patents

Abstract

The present invention relates to a single-axis high-temperature film-stretching apparatus so as to test stretching after setting the predetermined temperature, speed, and rate of various films appropriately for an optimal condition and purpose, then precisely stretching the films, and applying a stretching test program. Accordingly, the present invention has an effect of minimizing a thermal gradient inside a chamber by use of the single-axis high-temperature film stretching apparatus; an effect of minimizing a change in a thermal profile within the chamber anticipated when a sample is inserted by acquiring a minimum sample insertion time; and an effect of securing uniformity of the stretched film by precisely controlling the temperature inside the chamber.

Description

{High Temperature Single-Axis Precise Control Stretching Machine for Film}

The present invention relates to a single-shaft high-temperature film stretcher, and more particularly, to a single-shaft high-temperature film stretcher which comprises a single shaft for setting various temperatures and speeds and ratios of various films according to optimum conditions and purposes, Temperature film stretchers characterized in that they are for tensile testing.

The polymer thin film, particularly the microporous film using the polymer, has a glass transition temperature lower than room temperature, so that the film undergoes minute deformation at room temperature. Therefore, it has been difficult to make uniform physical properties required when used as a separator of a lithium ion battery or the like. Particularly, in the case where the size of the film is large in the width direction or large in the length direction, it is very difficult to ensure uniformity of various physical properties over the entire surface.

Therefore, conventionally, only a film portion having various physical properties is selected and used for various purposes.

A stretcher used for such film stretching is often used in which a stretcher for stretching a film at the same time in both the film advancing direction and the film width direction is subjected to multicolor printing as a table mark of various packaging materials. When the stretched film is produced, the base film after stretching is generally subjected to a heat treatment. By this heat treatment, heat resistance and the like of the stretched film are remarkably improved, resulting in an excellent film for practical use. However, in the heat treatment method, the end portion of the stretched film is loosened, and a bowing phenomenon occurs which causes troubles during printing or laminating. In addition to the heat treatment apparatus included in the stretching machine, a tension control device is provided on the downstream side of the heat treatment apparatus The tension control device is characterized by a film undergoing heat treatment within the heat treatment apparatus. However, such a conventional stretcher causes a failure of the servo motor due to the heat generated in the heat treatment process performed after the stretching process. It can not be applied to a variety of film fields such as information electronics, smart phones, secondary battery separators, and synthetic resins, has a draw ratio of stretched films, and has a high maintenance cost.

A number of prior arts are known in film devices for such stretching.

In Korean Patent Registration No. 10-1082266 (Sep. 11, 2011), a film is a stretching chamber for stretching, which is composed of a stretching frame formed of a rectangular box-shaped frame; An outer tube fixing part welded or bolted to the side surface of the stretching frame; An inner barrel case provided with a floor panel below the stretched frame and formed on an upper surface of the floor panel; A conveyance roller having a base conveyance belt formed at both sides of the inner side of the inner barrel case and formed in the base conveyance belt; A base on which a transfer groove is formed so as to be engaged with the transfer roller, a base plate coupled to an upper surface of the base, and a stretcher provided on an upper surface of the base plate; And a control unit having a touch screen for inputting data to the stretcher and a state display window indicating a stretched state.

Korean Patent Laid-Open Publication No. 10-2015-0083839 (Jul. 20, 2015) includes a strip-shaped polyethylene material having a film width of 300 mm or more, and with respect to the physical property distribution in the film width direction, Wherein the biaxially stretched microporous film and the raw material are kneaded, formed into a sheet, stretched, washed, dried, stretched, and longitudinally relaxed. Discloses a technique for producing a microporous film.

Korean Patent Laid-Open Publication No. 1997-0033751 (July 22, 1997) discloses a method for precisely setting the position corresponding to a die bolt on a film, thereby realizing precise control of film thickness and monitoring and adjustment of lateral stretch magnification, A method for controlling the thickness of a stretched film, comprising the steps of: when a sheet extruded from an automatic T-die having a plurality of die bolts is biaxially stretched by a film F in a biaxial stretching machine, A control method for feedback control of a die bolt through an automatic T-die control system by measuring a thickness, wherein a technique for setting the die-bolt corresponding position Bf (i) on a sheet and a film, have.

Korean Patent Laid-Open Publication No. 10-2016-0023823 (Mar. 23, 2013) discloses a first esterification reaction tank in which a total amount of a magnesium compound is added to a composition in which an antimony compound is present together with a dicarboxylic acid component and a diol component, A second esterification reaction tank disposed downstream of the first esterification reaction tank in which the total amount of the phosphorus compound is added to the composition to which the magnesium compound is added is provided via at least two esterification reactors connected in series, reaction esterification reaction step, and the pressure is 6.00 × 10 ³ Pa or less the first polycondensation reaction tank, and is disposed on the downstream side of the first polycondensation reaction vessel, the pressure is 0.60 × 10 ³ Pa or less the second polycondensation reaction tank of A polycondensation reaction in which the esterification reaction product produced in the esterification reaction process is subjected to a polycondensation reaction via at least two polycondensation reaction tanks , A step of melt-extruding the polyester produced through at least the esterification reaction step and the polycondensation reaction step to form a film in the form of a film, a longitudinal stretching step of longitudinally stretching the formed polyester film in the longitudinal direction And a transverse stretching step of transversely stretching the longitudinally stretched polyester film.

In addition, at http://www.mulimtech.com, a stretcher composed of a two-axis servomotor and a control section with a stretching ratio of 3.5 times and a working temperature of 180 DEG C is disclosed.

Also, http://oceansci.co.kr discloses a screw oven type stretching machine having a stretching distance of 300 mm and a stretching speed of 300 mm / min.

Therefore, it is possible to operate at a high temperature of 150 ° C or higher, to be driven in a no bearing type, to realize a temperature gradient within the chamber of ± 1 ° C, to minimize the time for high temperature stretching of the film in the chamber, It is possible to minimize changes in temperature, to rapidly cool the jig, to facilitate the maintenance of the jig, and finally to apply the load cell to all the surfaces of the film, thereby improving the uniformity of the stretched film A technique for a single-axis high-temperature film stretcher is not disclosed,

In addition, the load cell is applied for precise control to perform tensile test function. The maximum operating temperature is 400 ℃, the rapid cooling function is added to the softener, the structure is changed to diversify the position of heater, the application of automatic pneumatic pressure to existing film holder, There is no disclosure of a technique for a single-axis high-temperature film stretcher capable of precisely controlling the uniformity of a stretched film that has been reflected to double-coupling for ease of maintenance and change of clamp for the film.

Korean Patent Registration No. 10-1082266 (November 11, 2011) Korean Patent Publication No. 10-2015-0083839 (July 20, 2015) Korean Unexamined Patent Application Publication No. 1997-0033751 (July 22, 1997) Korean Patent Publication No. 10-2016-0023823 (Feb.

 http://www.mulimtech.com  http://oceansci.co.kr

The present invention relates to a film having a tensile test function by setting a predetermined temperature, a speed and a ratio of various films through a single shaft in accordance with an optimum condition and purpose, reducing the error rate by stretching the film more precisely and accurately, The present invention provides a single-shaft, high-temperature film automatic stretching machine.

In order to solve the above problems, the present invention provides a single-shaft extruding machine (100) for stretching a film at a high temperature, comprising: a control box (200) for controlling the rectangular single- A high temperature chamber (300) in contact with the lower end of the control box;

A stretching device 400 inserted into the high temperature chamber; A lower stand 500 formed in contact with the lower end of the high temperature chamber and the stretching machine; And a rapid cooling housing (600) for cooling the stretcher.

 The stretcher further includes a stretcher outer door (410) formed at one end of the stretching device for thermal insulation when the stretcher is positioned in the high temperature chamber to minimize a temperature change of the high temperature chamber set at a predetermined stretching temperature, The stretcher may include a stretcher inner door 420 formed at the other end of the stretching unit for thermal insulation sealing of the high temperature chamber when the stretcher is positioned outside the high temperature chamber.

A guide rail 510 formed on an upper portion of the lower stand to slide the stretcher when the stretcher is inserted into or discharged from the high temperature chamber; And a moving roller 422 for sliding the stretcher on the guide rail.

A base plate 423 on which the film is mounted on the stretcher; A plurality of film holders 415 formed on the base plate for fixing the film at regular intervals in two auxiliary guides 414; An auxiliary guide holder 416 having the two auxiliary guides; A connection link (421) connecting the plurality of film holders; A pneumatic input port (430) for supplying pneumatic pressure to the plurality of film holders; A pneumatic serial standing boat (431) connecting said plurality of film holders to a guide; And a high-temperature linear bearing (429) formed in the pneumatic serial standing boat and inserted and connected to the auxiliary guide; And can be stretched in both directions or in one direction from the center of the single-shaft film.

A conveying screw 411 for conveying a stretching force to draw the film in both directions or unidirectionally; A conveying screw fixing table 417 having the conveying screw; A load cell 425 for transmitting an extension driving force to the conveying screw; An inner coupling 426 and an outer coupling 427 formed on both sides of the outer door of the stretcher to separate or connect the base plate and the servo motor 412 for maintenance; And a decelerator 413 for decelerating the server motor, a heat shield, and the coupling support.

A plurality of heaters formed on the upper portion of the high-temperature chamber for precise temperature elevation; A plurality of fans for transferring the air heated through the plurality of heaters into the high temperature chamber; And a plurality of fan motors for transmitting a driving force to the plurality of fans.

The one side of the high-temperature chamber may be formed with a plurality of holes formed therein to uniformly transfer the heated air into the high-temperature chamber.

The diaphragm may comprise a variable diaphragm and a movable diaphragm movable in a lateral direction formed in contact with the variable diaphragm.

And a lower duct for supplying the heated air to a lower portion of the stretching unit may be formed at one side of the high-temperature chamber.

The movable diaphragm may be movable left and right under the condition that the hole width of the movable diaphragm formed by overlapping the holes of the variable diaphragm while moving the left diaphragm is 1 to 0.

The plurality of heaters may be formed of a first heater 307, a second heater 308, and a third heater 309 adjacent to the plurality of fans, or may be formed adjacent to the diaphragm 1 heater 327, A sub-heater 2 308, and a diaphragm sub-heater 3 309.

The single axis stretcher for stretching the film according to the present invention at high temperature has an effect of further minimizing the temperature gradient in the chamber.

In addition, the single-axis stretching machine for stretching the film at high temperature has the effect of minimizing the change in the temperature profile in the chamber, which is expected at the time of sample introduction, by ensuring the minimum sample loading time.

In addition, the single-axis stretching machine for stretching the film at high temperature has an effect of ensuring the uniformity of the stretched film by precisely controlling the temperature in the chamber.

Further, the single-shaft stretcher for stretching the film at high temperature has an effect of reducing the driving force at the time of stretching the film by using a single shaft, and reflecting the stretching characteristics under various conditions.

In addition, a single-axis stretcher for stretching a film at a high temperature has an effect of changing the fixed axis for stretching the film, thereby making the distribution of the force applied to the film uniform during stretching.

In addition, the single-axis stretching machine for stretching a film at a high temperature has an effect of minimizing a bowing phenomenon and a necking phenomenon caused by a difference in the yielding force between the central portion and the end portions at both ends in the transverse direction of the film.

In addition, a single-shaft stretcher for stretching a film at a high temperature has an effect of realizing a precise stretching force by applying a pneumatic clamp and a high temperature operating bearing.

1 is a side view of a single-shaft high-temperature stretching machine according to an embodiment of the present invention.
2 is an exploded view of a single shaft high temperature stretching machine according to an embodiment of the present invention.
3 is a cross-sectional view of a single-shaft high-temperature stretching machine according to an embodiment of the present invention.
4 is an exploded view of a stretcher of a single shaft high temperature stretching machine, which is an embodiment of the present invention.
5 is a view of a single-shaft high-temperature stretching machine to which a high-temperature actuation bearing and a pneumatic clamp according to an embodiment of the present invention are applied.

The present invention relates to a single-shaft high-temperature film stretcher characterized in stretching various films through a single shaft in accordance with an optimum condition and purpose, and arbitrarily setting a temperature, a speed and a ratio, and then stretching the film freely.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the accompanying drawings. It should be understood, however, that the appended drawings illustrate only the contents and scope of technology of the present invention, and the technical scope of the present invention is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the technical idea of the present invention based on these examples.

In addition, terms and words used in the present specification and claims should not be construed to be limited to ordinary or dictionary meanings, and the inventor should appropriately define the concept of the term to describe its invention in the best way. It should be construed as meaning and concept consistent with the technical idea of the present invention. Therefore, the embodiments described herein are merely the most preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention, so that there are various equivalents and modifications that can be substituted at the time of the present application It should be understood.

Hereinafter, the present invention will be described in detail.

1, the single-shaft extruder 100 for stretching a film at high temperature comprises a control box 200 for controlling the rectangular single-ply extruder; A high temperature chamber (300) in contact with the lower end of the control box; A stretching device 400 inserted into the high temperature chamber; A lower stand 500 formed in contact with the lower end of the high temperature chamber and the stretching machine, and a rapid cooling housing 600 for cooling the stretcher.

The single-axis stretcher may be sufficiently modified if it is a person skilled in the art to change the design of the single-axis stretcher to two-axis or three-axis.

The rapid cooling housing may be formed with a plurality of rapid cooling fans. The housing may be made of SUS polish material and the material of the rapid cooling fan may be aluminum or PC plastic. It is obvious that the size, number, arrangement, angle adjustment, height adjustment, and fan speed conditions of the fan can be freely changed if the three fans can be equally spaced and have a rapid cooling effect.

 The stretcher further includes a stretcher outer door (410) formed at one end of the stretching device for thermal insulation when the stretcher is positioned in the high temperature chamber to minimize a temperature change of the high temperature chamber set at a predetermined stretching temperature, The stretcher may include a stretcher inner door 420 formed at the other end of the stretching unit for thermal insulation sealing of the high temperature chamber when the stretcher is positioned outside the high temperature chamber.

When the stretcher is inserted into the high-temperature chamber, door locks 418 for the door can be formed on the external door of the stretcher.

Further, a door handle 419 for smooth insertion and discharge of the stretching machine can be formed.

Also, the single-shaft high-temperature stretcher may include a first upper panel 201 and a second upper panel 202 on the control box. The first upper panel and the second upper panel may be formed to facilitate maintenance of the single shaft high temperature stretching machine.

In addition, the control box may include a status display window 204 for monitoring the status of the single shaft high temperature stretcher.

Also, the control box may include a controller 203 that can control and drive the single shaft high temperature stretcher.

In addition, the high-temperature chamber may include a chamber door 324 capable of controlling a stretcher to maintain and charge or discharge the chamber in one side thereof.

In addition, the chamber door may include a viewing window 310 for observing the internal state during operation of the single shaft high temperature stretching machine.

A guide rail 510 formed on an upper portion of the lower stand to slide the stretcher when the stretcher is inserted into or discharged from the high temperature chamber; And a moving roller 422 for sliding the stretcher on the guide rail.

The moving roller may be a heat-resistant bearing, and is not particularly limited as long as the material is a heat-resistant material. Preferably SUS304. The heat-resistant temperature may be 230 or more.

Referring to FIG. 3, the stretcher includes a base plate 423 on which a film is mounted; A plurality of film holders 415 formed on the base plate for fixing the film at regular intervals in two auxiliary guides 414; An auxiliary guide holder 416 having the two auxiliary guides; A connection link (421) connecting the plurality of film holders; A pneumatic input port (430) for supplying pneumatic pressure to the plurality of film holders; A pneumatic serial standing boat (431) connecting said plurality of film holders to a guide; And a high-temperature linear bearing (429) formed in the pneumatic serial standing boat and inserted and connected to the auxiliary guide; And can be stretched in both directions or in one direction from the center of the single-shaft film.

The film holder may be an automatic pneumatic clamp and the operating pressure may be 0.1 to 1.0 Mpa.

The stretching conditions can be operated at a maximum use temperature of 400, a 10 kN load cell, a maximum elongation temperature of 6000 mm / min, and a maximum elongation of 700%.

It may also be operated under a stretching condition of 100 kN load cell, 12,000 mm / min, 2000% or more.

By applying a load cell to the stretcher, a precise tensile test is possible.

One end of the film holder may include a high-temperature cap 424 for eliminating the risk of human body by heating the stretcher when the film is detached from the stretcher.

A conveying screw 411 for conveying a stretching force to draw the film in both directions or unidirectionally; A conveying screw fixing table 417 having the conveying screw; A load cell 425 for transmitting an extension driving force to the conveying screw; An inner coupling 426 and an outer coupling 427 formed on both sides of the outer door of the stretcher to separate or connect the base plate and the servo motor 412 for maintenance; And a decelerator 413 for decelerating the server motor, a heat shield, and the coupling support.

Referring to FIG. 2, a plurality of heaters are formed on the upper part of the high-temperature chamber for precisely raising the temperature. A plurality of fans for transferring the air heated through the plurality of heaters into the high temperature chamber; A plurality of fan motors for transmitting driving force to the plurality of fans; The plurality of heaters may include a first heater 307, a second heater 308, and a third heater 309.

It is apparent that the plurality of heaters can be formed in various shapes and numbers in order to achieve a precise temperature rise.

The plurality of fans may include a first fan 304, a second fan 305, and a third fan 306.

It is obvious that the plurality of fans can be formed in various shapes and numbers as long as the heated air can be precisely transferred to the high-temperature chamber.

The plurality of fan motors may include a first motor 301, a second motor 302, and a third motor 303.

It is apparent that the plurality of fan motors may be formed in various shapes and numbers in order to transmit driving force for driving the plurality of fans for accurately conveying the heated air to the high-temperature chamber.

The plurality of heaters, the plurality of fans, and the plurality of fan motors may be formed in the upper chamber 321.

Referring to FIG. 4, it may include a temperature sensor 326 capable of sensing the temperature in the chamber.

Further, it may include a heat insulating material 325 for uniformizing the temperature profiling in the chamber.

The one side of the high-temperature chamber may be formed with a plurality of holes formed therein to uniformly transfer the heated air into the high-temperature chamber.

One side of the high-temperature chamber may be formed with an upper duct 320 through which air heated in the upper chamber is transferred to the diaphragm.

The plurality of holes may be circular, triangular, square, pentagonal, hexagonal, polygonal, and amorphous. It will be appreciated that the shapes of the plurality of holes may be formed in various shapes as long as the purpose of transferring the heated air can be achieved.

The shape of the plurality of holes is the same for the movable diaphragm and the movable diaphragm. It is possible to precisely control the temperature increase condition of the high temperature chamber while controlling the overlapping condition of the holes of the variable diaphragm and the moving diaphragm.

The diaphragm may comprise a variable diaphragm and a movable diaphragm movable in a lateral direction formed in contact with the variable diaphragm.

The moving diaphragm may be composed of an upper moving diaphragm 311, a middle moving diaphragm 312, and a lower moving diaphragm 313, which are divided into three portions having the same area.

The moving diaphragm can be variously modified in size and shape as long as the heated air can be uniformly transferred into the high-temperature chamber.

A lower chamber 323 may be formed at a lower portion of the high-temperature chamber so that the lower duct may be formed at one side of the high-temperature chamber to supply the heated air to the lower portion of the stretcher.

Further, an exhaust fan may be additionally formed for cooling the high-temperature chamber. The exhaust fan may be formed on an upper duct and a lower duct of the high-temperature chamber. .

The movable diaphragm may be movable left and right under the condition that the hole width of the movable diaphragm formed by overlapping the holes of the variable diaphragm while moving the left diaphragm is 1 to 0.

The maximum film mounting area of the stretching machine may be 4000 mm x 8000 mm or more. Preferably A0 (841 mm x 1189) or more, and more preferably 50 x 50 mm or more. If the maximum film mount area is exceeded, a change in geometry and physical shape may occur during the stretching.

The maximum film deposition thickness of the stretching machine may be 0.1 to 1000 탆. Preferably from 10 to 500 mu m, and more preferably from 1 to 10 mu m.

The maximum process temperature of the stretching machine may be 400 ° C or higher. Preferably 250 DEG C or higher, and more preferably 150 DEG C or higher. If the temperature exceeds the above-mentioned process temperature, the film to be stretched and the film to be stretched may be unreliable or not stretched.

  The maximum stretching force of the stretching machine may be 1 to 1500 kN. Preferably 700 to 1200 kN, and more preferably 10 to 50 kN or more. If the maximum stretching force is exceeded, physical and chemical deformation such as breakage of the stretched film may be caused. In addition, breakage of the film and overloading of the stretching machine may cause malfunction or malfunction.

The control unit may be programmed for a tensile test. The tensile test may take into account maximum load, maximum displacement, tensile strength, elongation, yield point, modulus, and the like. In addition, the test control method is the servo PID control method, which allows the positive displacement control, the static load control, and the return position user setting. In addition, the sectional area (mm 2), the maximum load (N), the tensile strength (N / mm 2), the yield load (N), the yield point (N / mm 2), the point (mm), the maximum displacement Elongation (%) and elapsed time (H: M: S).

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Therefore, the scope of the present invention should not be limited to the disclosed technology, but should be determined by the scope of the appended claims, as well as the appended claims.

100: Single shaft stretcher
200: Control box
201: first upper panel
202: second upper panel
203:
204: Status display window
300: high temperature chamber
301: first fan motor
302: second fan motor
303: Third fan motor
304: First fan
305: Second fan
306: Third Fan
307: First heater
308: Second heater
309: Third heater
310:
311: upper movable diaphragm
312: Central mobile diaphragm
313: lower movable diaphragm
314: variable diaphragm
320: upper duct
321: upper chamber
322: Lower duct
323: Lower chamber
324: chamber door
325: Insulation
326: Temperature sensor
327: Diaphragm 1 heater
328: Diaphragm 2 heater
329: Diaphragm 3 Heater
400: stretching machine
410: extruder outer door
411: Feed screw
412: Servo motor
413: Reducer
414: Auxiliary guide
415: Film holder
416: Auxiliary guide holder
417: Feed screw fixing table)
418: Door lock
419: Door handle
420: Inner door of the stretcher
421: Connection link
422:
423: base plate
424: High temperature cap
425: Load cell
426: Internal coupling
427: External coupling
428: Load cell connection axis
429: High temperature direct acting bearings
430: Pneumatic input port
431: Pneumatic serial standing boat
500: Lower stand
510: guide rail
600: Rapid cooling housing
610: Rapid cooling fan

Claims (11)

In a single extruding machine (100) for stretching a film at a high temperature,
A control box (200) for controlling the rectangular single - ply extruder;
A high temperature chamber (300) in contact with the lower end of the control box;
A stretching device 400 inserted into the high temperature chamber;
A lower stand 500 formed in contact with the lower end of the high temperature chamber and the stretching machine; And
And a rapid cooling housing (600) for cooling the stretcher,
A base plate 423 on which the film is mounted on the stretcher;
A plurality of film holders 415 formed on the base plate for fixing the film at regular intervals in two auxiliary guides 414;
An auxiliary guide holder 416 having the two auxiliary guides;
A connection link (421) connecting the plurality of film holders;
A pneumatic input port (430) for supplying pneumatic pressure to the plurality of film holders;
A pneumatic serial standing boat (431) connecting said plurality of film holders to a guide; And
A high temperature linear bearing (429) formed in the pneumatic series standing boat and inserted and connected to the auxiliary guide; / RTI >
Wherein the film is stretched in both directions or from one end to the other in the direction of the center of the single-shaft film.
The method according to claim 1,
The stretcher further includes a stretcher outer door (410) formed at one end of the stretching device for thermal insulation when the stretcher is positioned in the high temperature chamber to minimize a temperature change of the high temperature chamber set at a predetermined stretching temperature, Wherein the stretcher includes a stretcher inner door (420) formed at the other end of the stretching device for thermal insulation sealing of the high temperature chamber when the stretcher is positioned outside the high temperature chamber.
The method of claim 2,
A guide rail 510 formed on an upper portion of the lower stand to slide the stretcher when the stretcher is inserted into or discharged from the high temperature chamber; And
A moving roller (422) for sliding the stretcher on the guide rail; And stretching the film at a high temperature.
delete The film forming apparatus according to claim 1, further comprising: a conveyance screw (411) for conveying a stretching force to draw the film in both directions or unidirectionally;
A conveying screw fixing table 417 having the conveying screw;
A load cell 425 for transmitting an extension driving force to the conveying screw;
An inner coupling 426 and an outer coupling 427 formed on both sides of the outer door of the drawer for separating or connecting the base plate and the servo motor 412 for maintenance;
And a speed reducer (413) for decelerating the servo motor, a heat shield, and the coupling.
[3] The apparatus of claim 1, further comprising: a plurality of heaters formed on the upper portion of the high-temperature chamber for precise heating;
A plurality of fans for transferring the air heated through the plurality of heaters into the high temperature chamber;
A plurality of fan motors for transmitting driving force to the plurality of fans; Wherein the film is stretched at a high temperature.
7. The single-shaft stretching machine according to claim 6, wherein a diaphragm is formed on one side of the high-temperature chamber, the diaphragm having a plurality of holes for uniformly transferring the heated air into the high-temperature chamber.
The single-shaft stretcher according to claim 7, wherein the diaphragm comprises a variable diaphragm and a movable diaphragm movable in a lateral direction formed in contact with the variable diaphragm.
7. The single-shaft draw-on stretcher according to claim 6, wherein a lower duct for supplying the heated air to a lower portion of the stretching machine is formed at one side of the high-temperature chamber.
[Claim 8] The film according to claim 8, wherein the moving diaphragm moves left and right while the hole width ratio of the moving diaphragm formed by overlapping the holes of the variable diaphragm to the variable diaphragm is 1 to 0 Is a single-ply stretch fabric which is stretched at high temperature.
The air conditioner according to claim 7, wherein the plurality of heaters are formed of a first heater (307), a second heater (308), and a third heater (309) adjacent to the plurality of fans, (327), a heater (308) for a diaphragm secondary, and a heater (309) for a diaphragm.

Images