KR101822880B1 - Teflon shrinkage tube expansion device and expansion method - Google Patents

Abstract

The present invention relates to an expansion device for expanding a Teflon shrinkage tube, and more specifically, to a an expansion device for expanding a Teflon shrinkage tube, in which compressed air is supplied inside a tube supplied and an expansion part is pre-heated and heated to provide uniform heat to the Teflon shrinkage tube as the temperature is increased sequentially, and also by enabling the expansion of the pipe with the impartment of heat, the heated Teflon shrinkage tube subjected to simultaneous operation of heating and tube expansion is prevented from being cooled in a tube expansion process to be stable and uniform tube expansion becomes possible.

Description

(Teflon shrinkage tube expansion device and expansion method)

The present invention relates to an expansion pipe for expanding a teflon shrinkable tube, and more particularly, to a teflon shrink tube expansion system for expanding a teflon shrinkable tube uniformly and allowing a uniform expansion due to uniform heat application in a process of expanding a teflon shrinkable tube. And an expansion method using the expansion pipe system.

Teflon forms a very stable compound due to its strong chemical bond between fluorine and carbon, and has nearly complete chemical inertness and heat resistance, non-tackiness, excellent insulation stability and low coefficient of friction.

These tephrons are used in many industrial applications, and their use ranges from general kitchen containers to mechanical, automotive, semiconductor and aerospace components.

On the other hand, in the case of Teflon shrink tube (PTFE tube), it is manufactured by paste extrusion method. Tube made of PTFE mixed with special filler has excellent chemical resistance and heat resistance and is not adhesive. It is widely used in various hoses of the automobile industry, transport pipes of corrosive fluids, and piping of chemical equipment.

In the case of such a Teflon shrink tube, if necessary, the stretching operation increases the impact strength and transparency of the tube and increases the barrier property. For example, in the case of a basic PS, it is very fragile when it is unleaded, and its application is extremely limited. However, when it is stretched, it is very tough, transparent and thermoformed and used as a tube or a kite container.

In the meantime, as a method of expanding the tube, the tube is moved to the expanding portion in a state of heat shrinking by applying a certain amount of heat, and the vacuum is applied to expand the tube.

However, in the conventional tube expanding method as described above, the same heat is applied at the same time to apply heat, and partial lenticular discontinuity occurs. Particularly, when the tube is primarily heated, The heat applied to the tube in the course of the movement is not cooled down and can not be expanded.

Korean Patent Laid-Open Publication No. 10-1994-0019446.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide an apparatus and a method for supplying compressed air to a tube to be supplied and preheating and heating it at a tube- The present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a Teflon shrink tube expansion pipe system and a pipe expansion system using the expansion pipe system.

In addition, by expanding the Teflon shrink tube to allow the Teflon shrink tube to be cooled in the expansion process by simultaneous heating and expansion, thereby enabling stable and even expansion, Another object of the present invention is to provide an expansion method using the expansion pipe.

In order to accomplish the above object, the present invention provides a method of manufacturing an extruded Teflon shrinkable tube,

A supply guide portion for supplying and guiding the Teflon shrink tube from the tube supply portion;

An expansion unit that guides the Teflon shrink tube from the supply guide unit and performs heating and expansion;

A cooling portion for cooling the expanded Teflon shrink tube exiting from the tube portion;

A discharge guide for guiding the discharge of the expanded Teflon shrink tube;

A collection die for cutting and collecting the expanded Teflon shrink tube discharged from the discharge guide by cutting means; And

And a control unit for controlling the operation of the tube supply unit, the supply guide unit, the expansion unit, the cooling unit, and the discharge guide unit,

A tube supplying step of supplying compressed air to the inside of the Teflon shrink tube in a process of supplying the Teflon shrinkable tube formed by extrusion from the wound bobbin of the tube supply part,

A supply guiding step of guiding the friction supply and smooth supply of the Teflon shrink tube through the supply guide;

An expanding step of expanding and expanding through the compressed air while applying heat through the expansion part by receiving the Teflon shrink tube;

A cooling step of air cooling the expanded teflon shrink tube in the cooling section;

A discharge guide step for guiding the frictional discharge and the smooth discharge of the Teflon shrink tube cooled through the discharge guide; And

And performing a collection step of collecting the discharged expanded teflon shrink tube by cutting and collecting die.

As described above, the Teflon shrink tube expansion apparatus according to the present invention and the expansion method using the expansion pipe system can sequentially apply heat to the preheating section, the heating section, and the expansion section in the expansion section, It is possible to obtain an effect of preventing a lagging discrepancy due to the heat.

In addition, since the compressed air is supplied together with the sequential application of heat, expansion and simultaneous expansion are possible, and the effect of stable and uniform expansion due to prevention of cooling of the heated tube can be obtained.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an overall view of a teflon shrink tube expansion system according to the present invention. Fig.
FIG. 2 is a schematic view of a tube supply portion of a teflon shrink tube expansion tank of the present invention. FIG.
Fig. 3 is a schematic view of the supply guide portion of the expansion pipe of the Teflon shrink tube of the present invention.
Fig. 4 is a schematic view of the expanded portion of the expansion pipe of the Teflon shrink tube of the present invention.
5 is a schematic view of a cooling section of a teflon shrink tube expansion apparatus according to the present invention.
6 is a schematic view of a discharge guide portion of a Teflon shrink tube expansion apparatus according to the present invention.
FIG. 7 is an overall process diagram showing a method for expanding a Teflon shrinkable tubular expansion device using the present invention. FIG.
8 is an overall flow chart of a method for expanding a Teflon shrink tubing expansion device using the present invention.
9 is a simplified view of the tube feeding step of the expanding method using the Teflon shrink tube expansion device of the present invention.
10 is a simplified schematic diagram of the supply guide step of the expanding method using the Teflon shrinkable tubular expansion device of the present invention.
11 is a simplified schematic diagram of the expansion step of the expansion method using the Teflon shrink tube expansion device of the present invention.
12 is a simplified view of the cooling step of the expanding method using the Teflon shrink tube expansion device of the present invention.
FIG. 13 is a simplified schematic diagram of the discharging guide step of the expanding method using the Teflon shrinkable tube expanding apparatus of the present invention.
FIG. 14 is a schematic view of the collection step of the expanding method using the Teflon shrink tube expansion apparatus of the present invention. FIG.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms and the inventor may appropriately define the concept of the term in order to best describe its invention It should be construed as meaning and concept consistent with the technical idea of the present invention.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It should be understood that various equivalents and modifications may be present.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an overall view of a Teflon shrink tube expansion system according to the present invention.

As shown in FIG. 1, the Teflon shrink tubing expansion device of the present invention includes a tube supply part 100, a supply guide part 200, an expansion part 300, a cooling part 400, a discharge guide part 500, A collection die 600 and a control unit 700. [

Here, the tube supply part 100 is constructed so that a Teflon shrink tube (not shown in the drawing) which is pre-extruded is wound and stored.

At this time, as shown in FIG. 2, the tube supply part 100 is configured first as the supply part main body 110.

The Teflon shrink tube is wrapped and stored in the main body 110 of the supply unit 110. The bobbin 120 is recommended when using the Teflon shrink tube, and the Teflon shrink tube wound by the rotation of the bobbin 120 can be wound.

In the center of the bobbin 120, an axial tube 130 is formed which is a central axis of the bobbin 120 and penetrates the bobbin 120 to both sides.

At this time, an air supply hose 131 for receiving compressed air through a separate compressor (not shown in the figure) is connected to one side of the shaft tube 130 so as to have a free rotational force. On the other side, And an adapter 132 to which one end of the Teflon shrink tube to be wound around the tube 120 is connected.

That is, the Teflon shrink tube is wound around the bobbin 120, and one end of the Teflon shrink tube is connected to the adapter 132 at the time of winding, so that the compressed air generated by the compressor is supplied to the shaft tube 130 through the air supply hose 131 And is supplied to the inside of the Teflon shrink tube through the adapter 132.

The supply guide unit 200 is configured to guide the supply of the Teflon shrink tube to the tube-expanding unit 300, which is wound from the bobbin 120 of the tube supply unit 100.

3, a supply table 210 having a table shape is formed. First, a support table 211 (see FIG. 3), which is installed at an upper portion in the width direction behind the supply table 210, And a shaft portion 212 protruding forward is formed at an upper end of the support table 211. [

The upper and lower lifting and lowering blocks 220 and 220 'are formed of a pair of upper and lower lifting and lowering blocks 220 and 220' And elevated between the upper portion and the shaft portion 212.

The upper and lower lifting and lowering blocks 220 and 220 'are lifted and lowered by a screw shaft 213 having a rotary lever 214 at the upper end thereof, And the upper and lower lifting blocks 220 and 220 'are installed on the screw shaft 213 so as to be able to move up and down by adjusting the rotation of the screw shaft 213. In this case, It is possible to adjust the height of the position supplied according to the diameter and work environment.

On both sides of the screw shaft 213 are vertically penetrated the upper and lower lifting blocks 220 and 220 'and are guided by a pair of guide rods 215 on both sides of the supply table 210 and the shaft portion 212, The guide rod 215 is configured to guide the up and down movement of the upper and lower lift blocks 220 and 220 '.

The supply guide unit 200 includes feed rollers 230 and 230 'composed of a pair of upper and lower rubber materials and each of the feed rollers 230 and 230' 220 (220 ').

At this time, the feed rollers 230 and 230 'are configured to be connected by a chain sprocket (not shown in the figure) through a motor (not shown) power, At this time, the Teflon shrink tube is pressed between the feed rollers 230 and 230 'so as to be capable of being fed and discharged by friction.

The supply guide unit 200 is provided with a front guide unit 230 for guiding the Teflon shrink tube supplied from the front of the feed rollers 230 and 230 ' 240).

The front guide 240 includes a plurality of first supply guide rollers 241 and 241 'formed on the lower lift block 220 at the front side of the supply rollers 230 and 230' 1 supply guide rollers 241 and 241 'are configured to be horizontally and vertically guided so as to be guided on both sides and upper and lower sides of the entering Teflon shrink tube.

The rear guiding part 250 is configured to guide the Teflon shrinking tube discharged from the supplying rollers 230 and 230 'to the extending guide part 300 so that the guiding part 200 can smoothly enter the supplying guide part 200. do.

At this time, the rear guide unit 250 includes a connecting block 251 for connecting the upper and lower blocks 220 and 220 'from the rear side of the feeding rollers 230 and 230'. The connecting block 251, A long hole 251a to be fastened with a bolt B in a vertical direction is formed and connected to the upper and lower lift blocks 220 and 220 'through the long hole 251a.

A plurality of second supply guide rollers 252 and 252 'are formed in the connection block 251. The second supply guide rollers 252 and 252' are formed in a horizontal and vertical shape, And is configured to be guided on both sides and upper and lower sides with respect to the tube.

That is, the supply guide unit 200 is configured such that the Teflon shrinkable tube supplied from the tube supply unit 100 is guided by the guide roller supply roller 230 of the first supply guide roller 241 (241 ') of the front guide unit 240, (252 ') of the discharge and rear guide part 250 by the frictional force of the supply rollers 230 and 230' It is possible to supply and guide the Teflon shrink tube to the expanding part 300.

The expanding portion 300 is configured to expand the Teflon shrinking tube supplied from the supply guide portion 200, and the expanding becomes possible through heating and expansion.

In this case, as shown in FIG. 4, the expanding part 300 is constructed such that the inside is hollow and the upper part is opened. In the drawing, the enlarged tube body 310 having the left and right lengths on the left- The upper portion of the bending portion body 310 is configured to be openable and closable through a lid 311.

On the other hand, it is preferable that the expanding body 310 is constructed to have a heat insulating structure through ordinary heat insulating material (not shown).

The expanding drum 320 is formed with a through hole 321 penetrating through the expanding drum 320 in the left and right directions so that the Teflon shrinking tube It is made possible to expand during the passage.

The guide tube 360 is disposed at the forward end of the widening drum 320 and spaced apart forward through a support rod 361 and perpendicular to the through hole 321, And guides the Teflon shrink tube that enters the through hole 321.

The preheating unit 330 is configured to surround the front side of the expanding drum 320 and the preheating heater 331 is configured in the inside of the expanding drum 320 And to perform preheating with respect to the front side of the blanket drum 320.

The heating drum 340 surrounds the front end of the drum 340 and the heating drum 341 is disposed inside the drum 340. The heating drum 340 is disposed in the middle of the drum 340, And to perform heating with respect to the middle portion of the blanket drum 320.

An expansion unit 350 is disposed on the rear side of the expansion drum 320. The expansion unit 350 is configured to surround the rear periphery of the expansion drum 320 and an expansion heater 351 is formed inside the expansion drum 350 And to perform heating required for thermal expansion with respect to the rear side of the expansion drum 320. [

At this time, the heating heater 341 is configured to be able to be heated to a temperature higher than that of the preheating heater 331, and the expansion heater 351 is configured to be capable of heating to a temperature higher than that of the heating heater 341 The preheater 331 generates heat at a temperature of 150 to 170 ° C. and the heating heater 341 generates heat at a temperature of 200 to 230 ° C. and the expansion heater 351 generates heat at a temperature of 250 to 280 ° C. .

The through hole 321 is formed as a step and forms a heating hole 321a through which the Teflon shrink tube is guided to correspond to the preheating part 330 and the heating part 340. The expansion part 350, The diameter of which is larger than that of the heating hole 321a.

At this time, the heating hole 321a is formed to have a diameter that makes a predetermined tolerance with the outer diameter of the Teflon shrinkable tube to be expanded, so that the Teflon shrinkable tube can be easily moved and heated, and the expanding hole 321b is substantially expanded And the diameter of the teflon shrink tube is to be expanded.

That is, in the expanding part 300, the Teflon shrink tube is preheated by the preheating part 330 in the process of passing the Teflon shrink tube through the heating hole 321a of the expanding drum 320, The heat is applied to the Teflon shrink tube to gradually heat the Teflon shrink tube and the heat is applied to the Teflon shrink tube in the expanding part 350 during the process of passing through the expanding hole 321b continuously, The expanded tube can be expanded by the compressed air supplied from the tube supply unit 100. Such expansion can be achieved by sequentially and uniformly opening the Teflon shrink tube in the process of preheating and heating, It is possible to enlarge the thermal expansion according to the application of the heat.

The cooling unit 400 is configured to cool the thermally expanded Teflon shrink tube in the expansion unit 300 to maintain the plastic deformation state.

5, the cooling unit 400 includes a cooling unit main body 410 capable of accommodating a Teflon shrink tube that is expanded and discharged at a rear side of the expansion unit 300. The cooling unit main body 410 The cooling chamber 411 is opened upwards.

The cooling unit main body 410 is provided with a plurality of spray pipes 420 and 420 'that receive and discharge air through a separate compressor (not shown). At this time, The spray nozzle 420 'is constructed in the form of a flexible tubular body and has a free bending force, and at the tip thereof, an injection nozzle 421 for enabling expansion of air is formed.

That is, in the cooling unit 400, air is blown around the expanded Teflon shrink tube to cool the air.

The discharge guide portion 500 is configured to guide the discharge of the expanded Teflon shrink tube discharged from the expansion portion 300.

6, a discharge table 510 having a table shape is formed. First of all, the discharge table 510 is provided at its upper portion with a support table 511 And a shaft portion 512 which is projected forward is formed at the upper end of the support base 511.

The upper and lower lifting blocks 520 and 520 'are formed of a pair of upper and lower lifting blocks 520 and 520' And is lifted up and down between the upper portion and the shaft portion 512.

The upper and lower lifting blocks 520 and 520 'are lifted and lowered by a screw shaft 513 having a rotation lever 514 at the upper end thereof, The upper and lower lifting blocks 520 and 520 'are formed on the screw shaft 513 to be capable of rotating by adjusting the screw shaft 513. The diameters of the Teflon shrink tube to be applied And to adjust the height of the discharge position according to the working environment.

On both sides of the screw shaft 513 are vertically penetrated the upper and lower lifting blocks 520 and 520 'and connected to the discharge table 510 and a pair of guide rods 515, The guide rods 515 and 515 'are configured to guide up and down the upper and lower lifting blocks 520 and 520'.

The discharge guide unit 500 includes discharge rollers 530 and 530 'made up of a pair of upper and lower rubber materials. Each of the discharge rollers 530 and 530' 520 (520 ').

At this time, the discharge rollers 530 and 530 'are connected to a chain sprocket (not shown in the figure) through a motor (not shown) power, At this time, the Teflon shrink tube is pressed between the feed rollers 230 and 230 'so as to be capable of being fed and discharged by friction.

The discharge guide portion 500 is provided with a front guide portion (a guide portion) for guiding the Teflon shrinking tube supplied from the front of the discharge rollers 530 and 530 ' 540).

At this time, the front guide portion 540 includes a plurality of first discharge guide rollers 541 and 541 'formed on the lower lift block 520 at the front side of the discharge rollers 530 and 530' 1 discharge guide rollers 541 and 541 'are configured to be horizontally and vertically guided so as to be guided on both sides and upper and lower sides with respect to the entering Teflon shrink tube.

The discharge guide portion 500 is formed with a rear guide portion 550 for guiding the Teflon shrink tube discharged from the discharge rollers 530 and 530 ' .

At this time, the rear guide unit 550 includes a connecting unit 551 for connecting the upper and lower elevating blocks 520 and 520 'from the rear side of the discharge rollers 530 and 530' A long hole 551a to be fastened with a bolt B in a vertical direction is formed and connected to the upper and lower lifting blocks 520 and 520 'through the long hole 551a.

A plurality of second discharge guide rollers 552 and 552 'are formed in the connection block 551. The second discharge guide rollers 552 and 552' are vertically and horizontally arranged, And is configured to be guided on both sides and upper and lower sides with respect to the tube.

That is, the discharge guide unit 500 is configured such that the Teflon shrinkable tube discharged from the expansion unit 300 is guided to the guide path discharge rollers 530 of the first discharge guide rollers 541 and 541 'of the front guide unit 540, (552 ') of the discharge and rear guide portion 550 by the frictional force of the discharge rollers 530 and 530', such that the discharge rollers 530 and 530 ' The delivery of the Teflon shrink tubing from the tube portion 300 and the supply of the feed to the collection die 600 become possible.

The collection die 600 is configured to be capable of collecting the expanded Teflon shrink tube discharged through the discharge guide unit 500. The collection die 600 is not limited to this and may be a general basket or a tray, In the present invention, it will be possible to cut and collect the Teflon shrink tube to a certain size through a cutting means (not shown in the figure) in the process of collecting the Teflon shrink tube with the collection die 600.

The control unit 700 includes a tube supply unit 100, a supply guide unit 200, an expansion unit 300, a cooling unit 400, and a discharge guide unit 500, As shown in FIG.

For example, the control unit 700 controls the supply of compressed air to the air supply hose 131 connected to the shaft tube 130 of the tube supply unit 100, which is configured to control the operation of a conventional compressor.

The control unit 700 is configured to control the operation of the motor that applies the rotational force of the supply rollers 230 and 230 'of the supply guide unit 200.

The control unit 700 controls the temperature of the preheating unit 330, the heating unit 340, and the expansion unit 350 of the expansion unit 300.

The control unit 700 controls the supply of air to the spray pipes 420 and 420 'of the cooling unit 400 so as to control the operation of the conventional compressor.

The control unit 700 is configured to control the operation of the motor that applies the rotational force of the discharge rollers 530 and 530 'of the discharge guide unit 500. [

Hereinafter, a method of expanding the Teflon shrinkable tube using the Teflon shrink tube expansion apparatus of the present invention having the above-described structure will be described.

FIG. 7 is an overall process diagram showing an expanding method using a Teflon shrink tube expansion device of the present invention, and FIG. 8 is an overall flowchart of an expanding method using a Teflon shrink expansion tube expansion device of the present invention.

7 and 8, the method of expanding the Teflon shrink tubing according to the present invention includes a tube supply step S100, a supply guide step S200, an expansion step S300 , A cooling step (S400), a discharge guide step (S500), and a collection step (S600).

2, the Teflon shrink tube 10 is configured to supply the Teflon shrink tube to the bobbin (not shown) of the tube feeder 100, An air supply hose 131 for receiving compressed air from a general compressor (not shown) is connected to one side of the shaft tube 130 and an adapter One end of the Teflon shrink tube 10 is connected to the other end of the Teflon shrink tube.

That is, when the Teflon shrink tube 10 is supplied, it is supplied by the pulling force of the bobbin 120, and compressed air is injected into the tube 10 in the process of being supplied.

Thereafter, the supply guide step (S200)

10, the Teflon shrink tube 10 supplied from the tube supply unit 100 can be smoothly supplied to the tube-expanding unit 300. First, the front guide unit 340, The sheet is guided through a plurality of first supply guide rollers 241 and 241 'formed in the upper and lower supply rollers 230 and 230'.

That is, the Teflon shrink tube 10 is allowed to enter the linear state between the feed rollers 230 and 230 'according to the guidance of the first feed guide rollers 241 and 241', and the thus supplied Teflon shrinkage In the tube 10, the feed rollers 230 and 230 'press the Teflon shrink tube 10 to a predetermined pressure. In this pressurized state, when the motor (not shown in the figure) is driven, A frictional force is applied between the tube 230 'and the Teflon tube 10 to pull the tube from the tube supply part 100 and push it toward the expanded part 300 side.

The Teflon shrink tube 10 discharged from the feed rollers 230 and 230 'is guided through the plurality of second feed guide rollers 252 and 252' formed on the rear guide 350, And is supplied to the expanding part 300.

Then, in the expansion step S300,

Referring to FIG. 4, the Teflon shrink tube 10 is supplied from the supply guide 200 to heat and expand by expansion, as shown in FIG. 11. First, the supply guide 200, The Teflon shrinkable tube 10 guided by the expanding drum 320 enters the through hole 321 of the expanding drum 320 through the guide tube 360 formed at the tip of the expanding drum 320.

In the preheating step S310, the Teflon shrink tube 10 is preheated by passing through the heating hole 321a. In the preheating step S310, 330).

That is, in the preheating unit 330, preheating is performed by applying heat of about 150 to 170 ° C to the Teflon shrinkable tube 10 that is introduced by the operation of the preheating heater 331.

Thereafter, the preheated Teflon shrink tube 10 is subjected to the heating step S320, and the heating step S320 is enabled by the heating part 340 formed in the middle part of the flare drum 320. [

That is, the Teflon shrink tube 10 preheated by the preheating unit 330 continuously enters the heating unit 340 through the heating holes 321a. In the heating unit 340, the operation of the heating heater 341 The heating temperature of the Teflon shrink tube 10 is increased by applying heat to the Teflon shrink tube 10 which is introduced by the heating means 10 at a temperature higher than that of preheating, that is, 200 to 230 ° C.

Thereafter, the heated Teflon shrink tube 10 is subjected to the expansion step S330, and the expansion step S330 is enabled by the expansion part 350 formed at the rear of the flare drum 320. [

That is, the Teflon shrink tube 10 heated by the heating unit 340 continuously enters the expansion unit 350 through the expansion hole 321b. In the expansion unit 350, the operation of the expansion heater 351 The Teflon shrinkable tube 10 can be thermally deformed by applying heat to the Teflon shrinkable tube 10 which is heated by the heat of 250 to 280 ° C.

Thus, in the state where thermal deformation is possible, the drawn air is expanded by the compressed air injected into the Teflon shrink tube 10, thereby expanding the thermal expansion of the Teflon shrink tube 10 .

Thereafter, the cooling step (S400)

Referring to FIG. 5, as shown in FIG. 12, the expanded Teflon shrink tube 10 discharged from the expanding drum 320 is discharged to the cooling chamber 411 of the cooling unit 400 while being heated at a high temperature The cooling unit 400 performs the cooling of the Teflon shrink tube 10.

That is, in the cooling unit 400, air is supplied from the general compressor (not shown) to the spray pipes 420 and 420 ', and the air is discharged through the spray nozzle 421 to the Teflon Air can be cooled by injecting it to the periphery of the shrink tube 10, so that it is possible to maintain the plastically deformed state rapidly in the expanded Teflon shrink tube 10.

At this time, the injection pipes 420 and 420 'are formed in the form of a flexible pipe capable of freely bending, and it is possible to adjust the direction and position of the air to be injected, and each of the injection pipes 420 and 420' The control of the cooling position becomes possible.

Then, in the discharge guide step S500,

Referring to FIG. 6, it is possible to smoothly discharge the Teflon shrink tube 10 discharged from the tube bundle 300 as shown in FIG. 13. First, a plurality of first Is guided through the discharge guide rollers 541 and 541 'and enters between the upper and lower pair of discharge rollers 530 and 530'.

That is, the Teflon shrink tube 10 is allowed to enter a linear state between the discharge rollers 530 and 530 'according to the guide of the first discharge guide rollers 541 and 541', and the thus introduced Teflon shrinkage The tube 10 is constructed such that the discharge rollers 530 and 530 'are pressed against the Teflon shrink tube 10 in such a manner that the discharge roller 530 (530 ') and the teflon tube (10), and is pulled out from the expanded portion (300) and pushed out toward the collection die (600).

In addition, the Teflon shrinkable tube 10 discharged as described above is guided and discharged through the plurality of second discharge guide rollers 552 and 552 'formed in the rear guide unit 550.

That is, the Teflon shrink tube 10 can be continuously supplied and discharged by the frictional force of the feed rollers 230 and 230 'and the frictional force of the discharge rollers 530 and 530'.

Thereafter, the collection step (S600)

14, the expanded Teflon shrink tube 10 discharged from the discharge guide unit 500 is collected. In this sorting process, the cutting and collecting die 10 is cut to a predetermined length through a separate cutting unit 610, (600).

Thus, the expansion process of the Teflon shrink tube using the Teflon shrink tube expansion device of the present invention is completed, and this sequence of processes will be enabled by the control of the controller 700.

As described above, the expansion method using the Teflon shrink tube expansion system and the expansion pipe system according to the present invention is characterized in that the Teflon shrink tube is smoothly advanced, and the preheating process, the heating process, and the expansion process are sequentially performed. And to make it possible to carry out even expansion.

100: tube supply part 110: supply part body
120: bobbin 130:
131: air supply hose 132: adapter
200: supply guide unit 210: supply table
211: Support base 212:
213: screw shaft 214: rotary lever
215: guide rod
220, 220 ': upper and lower lift blocks 230, 230'
240: front guide portion 241, 241 ': first supply guide roller
250: rear guide part 251: connecting part
251a: long hole 252, 252 ': second supply guide roller
300: expansion part 310: expansion part body
311: cover 320: expansion drum
321: through hole 321a: heating hole
321b: Expansion hole 330: Preheating part
331: preheating heater 340: heating part
341: Heating heater 350: Expansion part
351: Expansion heater 360: Guide tube
361: support rod
400: cooling section 410: cooling section main body
411: Cooling chamber 420, 420 ': Discharge tube
421: injection nozzle
500: discharge guide part 510: discharge table
511: Supporting part 512: Shaft part
513: screw shaft 514: rotary lever
515: guide rod
520, 520 ': upper and lower lift blocks 530, 530': discharge rollers
540: front guide portion 541, 541 ': first discharge guide roller
550: rear guide portion 551: connecting rod
551a: Long hole 552,552 ': Second discharge guide roller
600: collection die 700: control unit

Claims (7)

A tube supply part 100 to which an extruded Teflon shrink tube is supplied;
A supply guide portion 200 for supplying and guiding the Teflon shrink tube from the tube supply portion 100;
An expansion part 300 for guiding the Teflon shrink tube from the supply guide part 200 to perform heating and expansion expansion;
A cooling unit 400 for cooling the expanded Teflon shrink tube discharged from the tube portion 300;
A discharge guide portion (500) for guiding the discharge of the expanded Teflon shrink tube;
A collection die 600 for cutting and collecting the expanded Teflon shrink tube discharged from the discharge guide portion 500 by cutting means; And
A control unit 700 for controlling operations of the tube supply unit 100, the supply guide unit 200, the expansion unit 300, the cooling unit 400, and the discharge guide unit 500;
Lt; / RTI >
The tube supply unit 100 includes:
A bobbin 120 formed on the supply part main body 110 and a bobbin 120 formed on the bobbin 120 such that the supply part main body 110 and the Teflon shrink tube are wound, And a shaft tube 130 formed with an adapter 132 connected to one end of a Teflon shrinkable tube wound around the bobbin 120 is connected to the supply hose 131,
The supply guide part (200)
A shaft portion 212 is formed at the upper end of the support portion 211 that extends upward from the upper side in the width direction of the upper surface of the upper portion of the support portion 211. A center portion of the shaft portion 212 is provided with a screw A supply table 210 in which a shaft 213 is installed and a pair of guide rods 215 are installed on both sides of the screw shaft 213,
A pair of upper and lower lifting and lowering blocks 220 and 220 'which are screwed to the screw shaft 213 of the supply table 210 while being supported by the guide rod 215 and lifted up and down,
A pair of motor-driven feed rollers 230 and 230 'formed in the upper and lower lift blocks 220 and 220', respectively, for pressurizing and entering the Teflon shrink tube to be fed by friction, ,
A front guide part 240 which is formed in front of the lower elevating block 220 and is composed of a plurality of first supply guide rollers 241 and 241 'which are horizontally and vertically arranged to guide the entrance of the Teflon shrinking tube, And
The connecting block 251 connecting the upper and lower lifting blocks 220 and 220 'through the bolt B coupling through the vertical elongated hole 251a in the backward direction of the feed rollers 230 and 230' And a plurality of second supply guide rollers 252 and 252 'that are vertically-formed in a horizontal and a vertical direction, and guide the rear of the introduced Teflon shrink tube.
The expanding part (300)
The inside of the hollow is opened to the upper side and the upper end is opened and closed through the lid 311. The expanded body 310 has a heat insulating structure,
And a through hole 321 is formed in the tube body 310 so as to be open at both ends of the tube body. The tube-like expanding drum 321 is expanded through the through hole 321 having a step in the process of passing the Teflon shrink tube, (320)
A preheater 330 having a preheater 331 enclosing the front of the expansion drum 320 and heating the expansion drum 320,
A heating unit 340 having a heating heater 341 enclosing an intermediate portion of the widening drum 320 and heating the widening drum 320 to a temperature higher than the temperature of the preheating unit 330;
And an expansion unit (350) having an expansion heater (351) enclosing the rear of the expansion drum (320) and heating the expansion drum (320) at a temperature higher than the temperature of the heating unit (340) Features Teflon shrink tubing expansion.
delete The method according to claim 1,
The through hole 321 of the expanding drum 320 has a heating hole 321a corresponding to the preheating portion 330 and the heating portion 340 and a corresponding hole 321a corresponding to the expansion portion 350 with a diameter larger than that of the heating hole 321a And an expansion hole (321b) for expanding the Teflon shrink tube.
The method according to claim 1,
The cooling unit 400,
A cooling unit main body 410 having an upper open cooling chamber 411; And
And a plurality of injection pipes 420 and 420 'which are formed in the cooling unit main body 410 and have injection nozzles 421 that receive air from the compressor and inject air into the cooling chamber 411 Features Teflon shrink tubing expansion.
The method according to claim 1,
The discharge guide portion (500)
A discharge table 510;
A pair of upper and lower lifting blocks 520 and 520 'formed on the discharge table 510 and lifted up and down;
A pair of motor-driven discharge rollers 530, 530 'formed in the upper and lower lifting blocks 520, 520' for pressurizing and discharging the discharged Teflon shrink tube from above and below;
A front guide part 540 which is formed in front of the lower elevating block 520 and is composed of a plurality of first discharge guide rollers 541 and 541 'which are horizontally and vertically arranged to guide the discharge of the Teflon shrinking tube, ; And
A connecting rod 551 connecting the upper and lower lifting blocks 520 and 520 'through bolts B through a vertical elongated hole 551a in the backward direction of the discharge rollers 530 and 530' And a rear guiding part 550 constituted by a plurality of second discharge guiding rollers 552 and 552 'which are formed in the connecting block 551 so as to be horizontal and vertical and guide the rear of the discharged Teflon shrink tube And,
In the discharge table 510,
A support base 511 is formed at an upper portion of the support frame 511 in the width direction and a shaft support portion 512 protruding forward is formed at an upper end of the support base 511,
A screw shaft 513 having a rotary lever 514 formed at the upper end of the upper and lower lifting blocks 520 and 520 '
A pair of guide rods 515 are formed on both sides of the screw shaft 513 so as to extend vertically through the upper and lower lifting blocks 520 and 520 ' A teflon shrink tube expansion system featuring a box.
A bobbin 120 formed on the supply part main body 110 and a bobbin 120 formed on the bobbin 120 such that the supply part main body 110 and the Teflon shrink tube are wound, A tube supply part 100 formed by coupling a supply tube 131 and an axial tube 130 formed with an adapter 132 connected to one end of a Teflon shrink tube wound around the bobbin 120,
A shaft portion 212 is formed at the upper end of the support portion 211 that extends upward from the upper side in the width direction of the upper surface of the upper portion of the support portion 211. A center portion of the shaft portion 212 is provided with a screw A supply shaft 210 is screwed to the supply shaft 210 of the supply table 210 and a pair of guide rods 215 are installed on both sides of the shaft shaft 213, The upper and lower lifting blocks 220 and 220 'and the upper and lower lifting blocks 220 and 220', which are supported by the guide rods 215 and are lifted up and down, A pair of motor-driven supply rollers 230 and 230 'that pressurize the tube from the upper and lower sides to be supplied by friction, and a plurality of horizontal and vertical vertical rollers A front guide 240 which is composed of first supply guide rollers 241 and 241 'and guides the entry of the Teflon shrink tube, Is formed in the connecting block 251 connecting the upper and lower lifting blocks 220 and 220 'through the bolt B coupling through the vertical elongated hole 251a in the backward direction of the feed rollers 230 and 230' And a rear guide part 250 which is composed of a plurality of second supply guide rollers 252 and 252 'which are vertical and horizontally oriented to guide the rear of the entering Teflon shrink tube, ,
The upper end of the hollow is opened and the upper end is opened and closed through the lid 311 so that the through hole 321 is formed to be opened at both ends in the inside of the expanding body 310 A tubular expanding drum 320 through which the Teflon shrinking tube is expanded while passing through a through hole 321 having a stepped portion in the course of passing the Teflon shrinking tube and a tubular expanding drum 320 surrounding the front end of the expanding drum 320, A preheater 330 having a built-in preheater 331 for heating and an intermediate portion between the expanding drum 320 and the preheating unit 330 to heat the expanding drum 320 at a temperature higher than the temperature of the preheating unit 330 A heating unit 340 having a heating heater 341 provided therein and a heating unit 340 surrounding the rear end of the expansion drum 320 to expand the expansion drum 320 to a temperature higher than the temperature of the heating unit 340, An expansion part 300 as an expansion part 350 having a heater 351 built therein,
A cooling unit main body 410 having an upper open cooling chamber 411 and an injection nozzle 421 formed in the cooling unit main body 410 for receiving air from a compressor and injecting air into the cooling chamber 411 A cooling unit 400 composed of a plurality of injection pipes 420 and 420 '
The upper and lower lifting blocks 520 and 520 'and the upper and lower lifting blocks 520 and 520', which are formed on the discharge table 510 and are lifted up and down, A pair of motor-driven discharge rollers 530 and 530 'for pressurizing and discharging the shrinking tube from above and below, and a plurality of first and second discharge rollers 530 and 530 formed in front of the lower lifting block 520, And is guided by guide rollers 541 and 541 'to guide the discharge of the Teflon shrink tube and the bolts 511a and 511b through the vertical slot 551a in the backward direction of the advancing direction of the discharge rollers 530 and 530' A plurality of second discharge guide rollers 552 which are vertically formed in the horizontal and vertical directions formed at the connecting rod 551 and a connecting rod 551 connecting the upper and lower lifting blocks 520 and 520 ' (552 ') and a rear guide portion (550) for guiding the rear of the Teflon shrink tube to be discharged. The discharge guide portion (500)
A collection die 600 for cutting and collecting the expanded Teflon shrink tube discharged from the discharge guide portion 500 by cutting means,
A control unit 700 for controlling the operation of the tube supply unit 100, the supply guide unit 200, the expansion unit 300, the cooling unit 400, and the discharge guide unit 500, However,
A tube supplying step (S100) for supplying compressed air to the inside of the Teflon shrink tube in a process of supplying the Teflon shrink tube formed by extrusion from the wound bobbin (120) of the tube supply section (100);
A supply guide step (S200) for guiding the frictional supply and smooth supply of the Teflon shrink tube through the supply guide part (200);
An expansion step (S300) of supplying the Teflon shrink tube and expanding and expanding through the compressed air while applying heat through the expansion part (300);
A cooling step (S400) of air cooling the expanded Teflon shrink tube in the cooling part (400);
A discharge guide step (S500) for guiding the frictional discharge and the smooth discharge of the cooled Teflon shrink tube through the discharge guide part (500); And
And a collection step (S600) of collecting the discharged expanded Teflon shrink tube by the cutting and collecting die (600) is performed.
The method according to claim 6,
In the expansion step S300,
A preheating step (S310) of preheating the supplied Teflon shrink tube;
A heating step (S320) of heating the preheated Teflon shrink tube to a temperature higher than the preheat temperature;
And expanding the Teflon shrink tube by heating the Teflon shrink tube to a temperature higher than the heating temperature (S330).

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